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Gastrointestinal cancer
Identification of New Pathogenic Variants of Hereditary Diffuse Gastric Cancer
Seung-Young Oh, Giyong Jang, Jaeryuk Kim, Kyoung-Yun Jeong, Hyun Myong Kim, Yoon Jin Kwak, Seong-Ho Kong, Do Joong Park, Hyuk-Joon Lee, Sung-Yup Cho, Jong-Il Kim, Han-Kwang Yang
Cancer Res Treat. 2024;56(4):1126-1135.   Published online April 11, 2024
DOI: https://doi.org/10.4143/crt.2024.328
AbstractAbstract PDFPubReaderePub
Purpose
Hereditary diffuse gastric cancer (HDGC) presents a significant genetic predisposition, notably linked to mutations in the CDH1 and CTNNA1. However, the genetic basis for over half of HDGC cases remains unidentified. The aim of this study is to identify novel pathogenic variants in HDGC and evaluate their protein expression.
Materials and Methods
Among 20 qualifying families, two were selected based on available pedigree and DNA. Whole genome sequencing (WGS) on DNA extracted from blood and whole exome sequencing on DNA from formalin-fixed paraffin-embedded tissues were performed to find potential pathogenic variants in HDGC. After selection of a candidate variant, functional validation, and enrichment analysis were performed.
Results
As a result of WGS, three candidate germline mutations (EPHA5, MCOA2, and RHOA) were identified in one family. After literature review and in-silico analyses, the RHOA mutation (R129W) was selected as a candidate. This mutation was found in two gastric cancer patients within the family. In functional validation, it showed RhoA overexpression and a higher GTP-bound state in the RhoaR129W mutant. Decreased phosphorylation at Ser127/397 suggested altered YAP1 regulation in the Rho-ROCK pathway. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses linked RhoaR129W overexpression to changed migration/adhesion in MKN1 cell line. However, this RHOA mutation (R129W) was not found in index patients in other families.
Conclusion
The RHOA mutation (R129W) emerges as a potential causative gene for HDGC, but only in one family, indicating a need for further studies to understand its role in HDGC pathogenesis fully.

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  • Current advances and challenges in Managing Hereditary Diffuse Gastric Cancer (HDGC): a narrative review
    L. van der Sluis, J.M. van Dieren, R.S. van der Post, T.M. Bisseling
    Hereditary Cancer in Clinical Practice.2024;[Epub]     CrossRef
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  • 125 Download
  • 1 Crossref
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Breast cancer
Temporal Trend in Uptake of the National General Health Checkups and Cancer Screening Program among Korean Women with Breast Cancer
Thi Xuan Mai Tran, Soyeoun Kim, Chihwan Cha, Boyoung Park
Cancer Res Treat. 2024;56(2):522-530.   Published online October 30, 2023
DOI: https://doi.org/10.4143/crt.2023.729
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
This study assessed the temporal trends of uptake of national general health and cancer screening among women with breast cancer in Korea between 2009 and 2016.
Materials and Methods
We retrospectively analyzed the claims data from the Korean National Health Insurance Service database. Participants included 101,403 breast cancer patients diagnosed between 2009 and 2016. Information on participation in national screening programs, including breast cancer screening, general health, and gastric, colorectal, and cervical cancers, up to 2020 was collected. Screening participation rates within the first 2 and 5 years postdiagnosis were calculated by diagnosis year and fitted with joinpoint regression models to assess temporal trends.
Results
Overall, the participation rate in breast cancer screening within 2 years postdiagnosis increased from 10.9% to 14.0% from 2009-2016, with an annual percentage change (APC) of 3.7% (p < 0.05). The participation rate in breast cancer screening was lower than that in general health checkup and screening for other cancers within 2 and 5 years postdiagnosis. A steady increase in screening trends was also observed for general health, gastric, colorectal, and cervical cancers, with APC of 5.3%, 5.7%, 6.9%, and 7.6% in the 2-year postdiagnosis rate, and APC of 3.6%, 3.7%, 3.7%, and 4.4% in 5-year postdiagnosis rate, respectively. The screening rate was highest among age groups 50-59 and 60-69 in 2009 and significant upward trends were observed in all age groups for general health checkup and gastric, colorectal, and cervical cancer screening.
Conclusion
Among female breast cancer survivors in Korea, the uptake rate of screenings for general health and various cancers, including breast, gastric, colorectal, and cervical cancers, has shown a gradual increase in recent years.

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  • Screening Adherence for Second Primary Malignancies in Breast Cancer Survivors: Behaviors, Facilitators, and Barriers to Enhance Quality Care
    Fernanda Mesa-Chavez, Misael Salazar-Alejo, Cynthia Villarreal-Garza
    Seminars in Oncology.2024;[Epub]     CrossRef
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  • 1 Crossref
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Gastrointestinal cancer
Development and Validation of Models to Predict Lymph Node Metastasis in Early Gastric Cancer Using Logistic Regression and Gradient Boosting Machine Methods
Hae Dong Lee, Kyung Han Nam, Cheol Min Shin, Hye Seung Lee, Young Hoon Chang, Hyuk Yoon, Young Soo Park, Nayoung Kim, Dong Ho Lee, Sang-Hoon Ahn, Hyung-Ho Kim
Cancer Res Treat. 2023;55(4):1240-1249.   Published online March 21, 2023
DOI: https://doi.org/10.4143/crt.2022.1330
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
To identify important features of lymph node metastasis (LNM) and develop a prediction model for early gastric cancer (EGC) using a gradient boosting machine (GBM) method.
Materials and Methods
The clinicopathologic data of 2556 patients with EGC who underwent gastrectomy were used as training set and the internal validation set (set 1) at a ratio of 8:2. Additionally, 548 patients with EGC who underwent endoscopic submucosal dissection (ESD) as the initial treatment were included in the external validation set (set 2). The GBM model was constructed, and its performance was compared with that of the Japanese guidelines.
Results
LNM was identified in 12.6% (321/2556) of the gastrectomy group (training set & set 1) and 4.3% (24/548) of the ESD group (set 2). In the GBM analysis, the top five features that most affected LNM were lymphovascular invasion, depth, differentiation, size, and location. The accuracy, sensitivity, specificity, and the area under the receiver operating characteristics of set 1 were 0.566, 0.922, 0.516, and 0.867, while those of set 2 were 0.810, 0.958, 0.803, and 0.944, respectively. When the sensitivity of GBM was adjusted to that of Japanese guidelines (beyond the expanded criteria in set 1 [0.922] and eCuraC-2 in set 2 [0.958]), the specificities of GBM in sets 1 and 2 were 0.516 (95% confidence interval, 0.502-0.523) and 0.803 (0.795-0.805), while those of the Japanese guidelines were 0.502 (0.488-0.509) and 0.788 (0.780-0.790), respectively.
Conclusion
The GBM model showed good performance comparable with the eCura system in predicting LNM risk in EGCs.

Citations

Citations to this article as recorded by  
  • Intratumoural and peritumoural CT-based radiomics for diagnosing lepidic-predominant adenocarcinoma in patients with pure ground-glass nodules: a machine learning approach
    Y. Zou, Q. Mao, Z. Zhao, X. Zhou, Y. Pan, Z. Zuo, W. Zhang
    Clinical Radiology.2024; 79(2): e211.     CrossRef
  • eCura and W-eCura: different scores, different populations, same goal
    Rui Morais, Diogo Libanio, João Santos-Antunes
    Gut.2024; 73(11): e29.     CrossRef
  • A machine learning model for predicting the lymph node metastasis of early gastric cancer not meeting the endoscopic curability criteria
    Minoru Kato, Yoshito Hayashi, Ryotaro Uema, Takashi Kanesaka, Shinjiro Yamaguchi, Akira Maekawa, Takuya Yamada, Masashi Yamamoto, Shinji Kitamura, Takuya Inoue, Shunsuke Yamamoto, Takashi Kizu, Risato Takeda, Hideharu Ogiyama, Katsumi Yamamoto, Kenji Aoi,
    Gastric Cancer.2024; 27(5): 1069.     CrossRef
  • The Application of Artificial Intelligence to Cancer Research: A Comprehensive Guide
    Amin Zadeh Shirazi, Morteza Tofighi, Alireza Gharavi, Guillermo A. Gomez
    Technology in Cancer Research & Treatment.2024;[Epub]     CrossRef
  • Computed Tomography-Based Radiomics Analysis of Different Machine Learning Approaches for Differentiating Pulmonary Sarcomatoid Carcinoma and Pulmonary Inflammatory Pseudotumor
    An-Lin Zhang, Yan-Mei Fu, Zhi-Yang He
    Iranian Journal of Radiology.2024;[Epub]     CrossRef
  • Screening of gastric cancer diagnostic biomarkers in the homologous recombination signaling pathway and assessment of their clinical and radiomic correlations
    Ahao Wu, Tengcheng Hu, Chao Lai, Qingwen Zeng, Lianghua Luo, Xufeng Shu, Pan Huang, Zhonghao Wang, Zongfeng Feng, Yanyan Zhu, Yi Cao, Zhengrong Li
    Cancer Medicine.2024;[Epub]     CrossRef
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Descriptive Analysis of Gastric Cancer Mortality in Korea, 2000-2020
Tung Hoang, Hyeongtaek Woo, Sooyoung Cho, Jeeyoo Lee, Sayada Zartasha Kazmi, Aesun Shin
Cancer Res Treat. 2023;55(2):603-617.   Published online September 6, 2022
DOI: https://doi.org/10.4143/crt.2022.307
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
This study aimed to examine secular trends, age-period-cohort effects, and geographical differences in gastric cancer (GC) mortality in Korea.
Materials and Methods
Using cause of death data from the Korean Statistical Information Service for GC from 2000 to 2020, we calculated average annual percentage changes (AAPCs) in the age-standardized mortality of GC in 17 cities and provinces through joinpoint regression. Decomposition of age, period, and cohort effects on GC mortality were elucidated by applying a log-linear model and an intrinsic estimate method. Spatial patterns and the degree of spatial clustering in 250 administrative regions were explored via Moran’s I statistics. Stratification by sex was performed for all analyses.
Results
The age-standardized mortality of GC per 100,000 persons declined from 29.0 in 2000 to 7.9 in 2020 (AAPC, -6.28%). Age-period-cohort analyses of GC mortality showed a downward trend among five-year age groups from age 20-89 years across five-year periods from 2005-2020 and five-year birth cohorts from 1920-2000. Overall, the younger birth cohort showed lower mortality rates than the older cohort within the same period. In 2020, clusters of high GC mortality were observed in the central area for men (Chungcheongbuk, Jeollabuk, Gyeongsangbuk, and Gyeongsangnam) and in the eastern area for women (Gyeongsangbuk).
Conclusion
This study identified a downward trend in GC mortality among men and women from 2000 to 2020 in Korea. This trend was mainly attributed to birth cohort rather than period effects. Spatial analysis showed high GC mortality in the Chungcheong and Gyeongsangbuk areas.

Citations

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  • Expression of claudin 18.2 in poorly cohesive carcinoma and its association with clinicopathologic parameters in East Asian patients
    Moonsik Kim, Byung Woog Kang, Jihyun Park, Jin Ho Baek, Jong Gwang Kim
    Pathology - Research and Practice.2024; 263: 155628.     CrossRef
  • Updated Epidemiology of Gastric Cancer in Asia: Decreased Incidence but Still a Big Challenge
    Wing Sum Shin, Fuda Xie, Bonan Chen, Peiyao Yu, Jun Yu, Ka Fai To, Wei Kang
    Cancers.2023; 15(9): 2639.     CrossRef
  • 5,030 View
  • 191 Download
  • 4 Web of Science
  • 2 Crossref
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Treatment Patterns and Changes in Quality of Life during First-Line Palliative Chemotherapy in Korean Patients with Advanced Gastric Cancer
Jin Won Kim, Jong Gwang Kim, Byung Woog Kang, Ik-Joo Chung, Young Seon Hong, Tae-You Kim, Hong Suk Song, Kyung Hee Lee, Dae Young Zang, Yoon Ho Ko, Eun-Kee Song, Jin Ho Baek, Dong‐Hoe Koo, So Yeon Oh, Hana Cho, Keun-Wook Lee
Cancer Res Treat. 2019;51(1):223-239.   Published online October 19, 2018
DOI: https://doi.org/10.4143/crt.2018.073
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
The purpose of this study was to evaluate chemotherapy patterns and changes in quality of life (QOL) during first-line palliative chemotherapy for Korean patients with unresectable or metastatic/recurrent gastric cancer (GC).
Materials and Methods
Thiswas a non-interventional, multi-center, prospective, observational study of 527 patients in Korea. QOL assessments were conducted using the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaires (QLQ)-C30 and QLQ-STO22 every 3 months over a 12-month period during first-line palliative chemotherapy. The specific chemotherapy regimens were selected by individual clinicians.
Results
Most patients (93.2%) received combination chemotherapy (mainly fluoropyrimidine plus platinum) as their first-line palliative chemotherapy. The median progression-free survival and overall survival were 8.2 and 14.8 months, respectively. Overall, “a little” changes (differences of 5-10 points from baseline)were observed in some of the functioning or symptom scales; none of the QOL scales showed either “moderate” or “very much” change (i.e., ≥ 11 point difference from baseline). When examining the best change in each QOL domain from baseline, scales related to some aspects of functioning, global health status/QOL, and most symptoms revealed significant improvements (p < 0.05). Throughout the course of first-line palliative chemotherapy, most patients’ QOL was maintained to a similar degree, regardless of their actual response to chemotherapy.
Conclusion
This observational study provides important information on the chemotherapy patterns and QOL changes in Korean patientswith advanced GC. Overall, first-line palliative chemotherapy was found to maintain QOL, and most parameters showed an improvement compared with the baseline at some point during the course.

Citations

Citations to this article as recorded by  
  • Health-related quality of life with bemarituzumab plus mFOLFOX6 in patients with FGFR2b-overexpressing, advanced gastric or gastroesophageal junction cancer
    Z.A. Wainberg, P.C. Enzinger, S. Qin, K. Yamaguchi, J. Wang, X. Zhou, A. Gnanasakthy, K. Taylor, A. Yusuf, I. Majer, A. Jamotte, Y.-K. Kang
    ESMO Gastrointestinal Oncology.2024; 6: 100095.     CrossRef
  • Impact of systemic cancer treatment on quality of life and mental well-being: a comparative analysis of patients with localized and advanced cancer
    Adán Rodríguez-Gonzalez, Alberto Carmona-Bayonas, Raquel Hernandez San Gil, Patricia Cruz-Castellanos, Mónica Antoñanzas-Basa, David Lorente-Estelles, María Jose Corral, Manuel González-Moya, Oscar Alfredo Castillo-Trujillo, Emilio Esteban, Paula Jiménez-
    Clinical and Translational Oncology.2023; 25(12): 3492.     CrossRef
  • Reminiscence therapy-based care program alleviates anxiety and depression, as well as improves the quality of life in recurrent gastric cancer patients
    Xing Wu, Weiwei Zhang
    Frontiers in Psychology.2023;[Epub]     CrossRef
  • Toxicities and Quality of Life during Cancer Treatment in Advanced Solid Tumors
    Eun Mi Lee, Paula Jiménez-Fonseca, Rocio Galán-Moral, Sara Coca-Membribes, Ana Fernández-Montes, Elena Sorribes, Esmeralda García-Torralba, Laura Puntí-Brun, Mireia Gil-Raga, Juana Cano-Cano, Caterina Calderon
    Current Oncology.2023; 30(10): 9205.     CrossRef
  • Psychosocial functioning in individuals with advanced oesophago-gastric cancer: a mixed methods systematic review
    Cara Ghiglieri, Martin Dempster, Sam Wright, Lisa Graham-Wisener
    BMC Palliative Care.2023;[Epub]     CrossRef
  • Multicenter phase III trial of S-1 and cisplatin versus S-1 and oxaliplatin combination chemotherapy for first-line treatment of advanced gastric cancer (SOPP trial)
    Keun-Wook Lee, Ik-Joo Chung, Min-Hee Ryu, Young Iee Park, Byung-Ho Nam, Ho-Suk Oh, Kyung Hee Lee, Hye Sook Han, Bong-Gun Seo, Jae-Cheol Jo, Hyo Rak Lee, Jin Won Kim, Sook Ryun Park, Sang Hee Cho, Yoon-Koo Kang
    Gastric Cancer.2021; 24(1): 156.     CrossRef
  • Effect of early tumor response on the health-related quality of life among patients on second-line chemotherapy for advanced gastric cancer in the ABSOLUTE trial
    Kazumasa Fujitani, Kohei Shitara, Atsuo Takashima, Keisuke Koeda, Hiroki Hara, Norisuke Nakayama, Shuichi Hironaka, Kazuhiro Nishikawa, Yutaka Kimura, Kenji Amagai, Hisashi Hosaka, Yoshito Komatsu, Ken Shimada, Ryohei Kawabata, Hideki Ohdan, Yasuhiro Kode
    Gastric Cancer.2021; 24(2): 467.     CrossRef
  • Quality-of-Life Assessment in Patients Receiving Palliative Chemotherapy: Call for Action
    Maheswari Senthil
    Annals of Surgical Oncology.2021; 28(1): 7.     CrossRef
  • Impact of gastric cancer treatment on quality of life of patients
    Kerstin Schütte, Christian Schulz, Kristina Middelberg-Bisping
    Best Practice & Research Clinical Gastroenterology.2021; 50-51: 101727.     CrossRef
  • Influencing Factors and Effects of Treatment on Quality of Life in Patients With Gastric Cancer—A Systematic Review
    Sophia Kristina Rupp, Andreas Stengel
    Frontiers in Psychiatry.2021;[Epub]     CrossRef
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    Ki Bum Park, Ji Yeon Park, Seung Soo Lee, Ho Young Chung, Oh Kyoung Kwon
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    Hannah Christina Puhr, Eleonore Pablik, Anna Sophie Berghoff, Gerd Jomrich, Sebastian Friedrich Schoppmann, Matthias Preusser, Aysegül Ilhan-Mutlu
    ESMO Open.2020; 5(2): e000623.     CrossRef
  • 11,285 View
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  • 12 Web of Science
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Case Report
MET-Amplified Intramucosal Gastric Cancer Widely Metastatic after Complete Endoscopic Submucosal Dissection
Dakeun Lee, Young Chul Kim, Kee Myung Lee, Joon-Kee Yoon, Young-Bae Kim
Cancer Res Treat. 2015;47(1):120-125.   Published online August 25, 2014
DOI: https://doi.org/10.4143/crt.2013.137
AbstractAbstract PDFPubReaderePub
Intramucosal gastric cancer (IGC) is associated with a very low risk of lymph node metastasis; thus it is the main candidate for minimally invasive surgical procedures, such as endoscopic submucosal dissection (ESD). Herein, we document an extraordinary case of IGC, which showed a very aggressive clinical course. A 66-year-old female underwent ESD for early gastric cancer. Histologically, the tumor consisted mainly of moderately differentiated adenocarcinoma measuring 1.6 cm in diameter, and the tumor was confined to the mucosa. Despite annual esophagogastroduodenoscopic follow-up, the tumor recurred, with wide metastasis to multiple lymph nodes and bones throughout the body after three years. Fluorescence in situ hybridization study demonstrated MET gene amplification as well as low grade polysomy 7 in both original and recurrent tumors. The clinical characteristics of metastatic IGCs and the implication of MET amplification are discussed.

Citations

Citations to this article as recorded by  
  • MicroRNA signatures associated with lymph node metastasis in intramucosal gastric cancer
    Seokhwi Kim, Won Jung Bae, Ji Mi Ahn, Jin-Hyung Heo, Kyoung-Mee Kim, Kyeong Woon Choi, Chang Ohk Sung, Dakeun Lee
    Modern Pathology.2021; 34(3): 672.     CrossRef
  • 9,975 View
  • 78 Download
  • 1 Web of Science
  • 1 Crossref
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Original Articles
Clinical Analysis of 1136 Early Gastric Cancers
Jin Pok Kim, Yoon Seok Hur, Kuk Jin Choe, Kuhn Uk Lee, Kyoo Wan Choi, Byung Ihn Choi, Yong Il Kim
J Korean Cancer Assoc. 1993;25(6):808-818.   Published online August 1, 2014
AbstractAbstract PDF
Gastric cancer is the most frequent cancer and leading cause of death from cancer in Korea. From 1974 to l992, we had experienced 7606 cases of gastric cancer and performed 6928 gastric resections. 1136 cases were early gastric cancer(14.9% of all cases and 16.4% of resected cases). These lesians were in 757 men and in 379 women. The mean age was 54.8 years and peak incidence of age was 6th decade in male, and 5th decade in female. The diagnostic tools were upper gastrointestinal series and gastrofibroscope, and the accuracy was 89.8% and 93.8% respectively. Among them mucosal lesions were 548 cases(48.2%), submucosal lesions were 588 cases(51.8%) and 178 cases(15.7%) had lymph nade metastasis. According to the depth of invasion, the rate of lymph node metastasis was 6.4% in mucosal lesion and 24.3% in submucosal lesion. Macroscopically, Type IIc was the most frequently encountered lesion(52.2%, 593 cases). Histologically, signet ring cell type is the most frequent(25.6%). Overall five-year survival rate was 91.8%, and 94.2% in mucosal lesions, 91.3% in submucosal lesions, 94.5% in NO lesions, 88.3% in Nl lesions and 77.3% in N2 lesions. The most important factor for survival was the status of lymph nade metastasis. The factors associated with lymph node metastasis were depth of invasion, macroscopic type (protruding type) but the size of the lesion, histologic type, sex and age, site of lesion had no association statistically.
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Effects of Polymorphisms of Innate Immunity Genes and Environmental Factors on the Risk of Noncardia Gastric Cancer
Jeongseon Kim, Young Ae Cho, Il Ju Choi, Yeon-Su Lee, Sook-Young Kim, Jung-Ah Hwang, Soo-Jeong Cho, Myeong-Cherl Kook, Chan Gyoo Kim, Young-Woo Kim
Cancer Res Treat. 2013;45(4):313-324.   Published online December 31, 2013
DOI: https://doi.org/10.4143/crt.2013.45.4.313
AbstractAbstract PDFPubReaderePub
PURPOSE
Increasing evidence suggests that polymorphisms in innate immunity genes are associated with Helicobacter pylori-induced inflammation and may influence susceptibility in developing noncardia gastric cancer. Therefore, we investigate the effect of polymorphisms of innate immunity genes and interactions with environmental factors in the Korean population.
MATERIALS AND METHODS
We genotyped four polymorphisms of TLR2 (rs1898830), TLR4 (rs10983755 and rs10759932), and CD14 (rs2569190) in a case-control study of 487 noncardia gastric cancer patients and 487 sex- and age-matched healthy controls. Polytomous logistic regression models were used to detect the effects of genetic polymorphisms and environmental factors, which were stratified by the histological type of gastric cancer.
RESULTS
TLR4 rs10983755 A carriers were found to have higher risk of intestinal-type noncarida gastric cancer than G homozygotes (odds ratio [OR], 1.41; 95% confidence interval [CI], 1.01 to 1.97), but other genetic variants showed no association with the risk of noncardia gastric cancer. Among H. pylori-positive participants, smokers carrying TLR4 rs10983755 A had a higher risk of intestinal-type gastric cancer than nonsmoking TLR4 rs10983755 G homozygotes (OR, 4.28; 95% CI, 2.12 to 8.64). In addition, compared with tap water, other drinking water sources during childhood were found to be associated with the elevated risk of intestinal-type gastric cancer, and these associations were slightly stronger among TLR4 rs10983755 A carriers.
CONCLUSION
The genetic polymorphisms of innate immunity genes are associated with the development of intestinal-type noncardia gastric cancer and these associations may differ in accordance to an exposure to certain environmental factors.

Citations

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    Rabeb M. Ghali, Sonia Zaied, Amira Daldoul, Perizat Kanabekova, Wassim Y. Almawi
    Gene.2024; 928: 148773.     CrossRef
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    Eglė Žilienė, Arturas Inčiūra, Rasa Ugenskienė, Elona Juozaitytė
    Diagnostics.2023; 13(12): 1999.     CrossRef
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    Ali Reza Yusefi, Shima Bordbar, Gholamhossein Mehralian, Kamran Bagheri Lankarani, Mohammad Khammarnia, Zahra Kavosi, Peivand Bastani
    The Open Public Health Journal.2023;[Epub]     CrossRef
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    Ayoub Al Othaim, Sulieman Ibraheem Shelash Al-Hawary, Hashem O. Alsaab, Sami G. Almalki, Mazin A. A. Najm, Ahmed Hjazi, Ali Alsalamy, Abbas Firras Almulla, Hamzeh Alizadeh
    Frontiers in Genetics.2023;[Epub]     CrossRef
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    Xu Han, Tianyu Liu, Jiabao Zhai, Chang Liu, Wanyu Wang, Chuang Nie, Qi Wang, Xiaojie Zhu, Haibo Zhou, Wenjing Tian
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    Agostino Di Ciaula
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    Zheng-Hua Wang, Zhi-Tu Zhu, Xu-Yang Xiao, Jin Sun
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    Natalia Castaño-Rodríguez, Nadeem O. Kaakoush, Hazel M. Mitchell
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Predictive Value of In Vitro Adenosine Triphosphate-Based Chemotherapy Response Assay in Advanced Gastric Cancer Patients Who Received Oral 5-Fluorouracil after Curative Resection
Ji Hyun Lee, Min-Chan Kim, Sung Yong Oh, Hyuk-Chan Kwon, Sung-Hyun Kim, Kyung A Kwon, Suee Lee, Jin Sook Jeong, Seok-Reyol Choi, Hyo-Jin Kim
Cancer Res Treat. 2011;43(2):117-123.   Published online June 30, 2011
DOI: https://doi.org/10.4143/crt.2011.43.2.117
AbstractAbstract PDFPubReaderePub
PURPOSE
To assess the usefulness of adenosine triphosphate-based chemotherapy response assay (ATP-CRA) results in advanced gastric cancer patients receiving adjuvant chemotherapy.
MATERIALS AND METHODS
Sixty-two patients underwent curative surgical resection between January, 2006 and December, 2008. Their highly purified surgical specimens were evaluated by ATP-CRAs. Of the 62, 49 had successful assay results and they received either oral 5-fluorouracil or other chemotherapies. We retrospectively analyzed data for 24 patients who were treated with oral 5-fluorouracil and whose assays were successful.
RESULTS
The median observation time was 24.6 months (range, 10.1 to 40.9 months). The median treatment time was 11.2 months (range, 1.2 to 17.7 months). The median age was 66 years (range, 30 to 81 years). Patients were grouped into sensitive- and resistant-groups according to adenosine triphosphate-based chemotherapy response results for fluorouracil. The sensitive-group showed a significantly longer time to relapse (not reached in the sensitive-group vs. 24.8 months in the resistant-group, p=0.043) and longer overall survival compared to the resistant-group (not reached in the sensitive-group vs. 35.7 months in the resistant-group, p=0.16, statistically insignificant).
CONCLUSION
Patients who receive curative surgical resection significantly benefit from sensitive adjuvant chemotherapy according to ATP-CRA results for time to relapse.

Citations

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  • In Vitro Adenosine Triphosphate-Based Chemotherapy Response Assay as a Predictor of Clinical Response to Fluorouracil-Based Adjuvant Chemotherapy in Stage II Colorectal Cancer
    Hye Youn Kwon, Im-kyung Kim, Jeonghyun Kang, Seung-Kook Sohn, Kang Young Lee
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Wernicke's Encephalopathy in Advanced Gastric Cancer
Eun Suk Jung, Obin Kwon, Soo Hyun Lee, Ki Byung Lee, Joo Hoon Kim, Sang Hyun Yoon, Gun Min Kim, Hei-Cheul Jeung, Sun Young Rha
Cancer Res Treat. 2010;42(2):77-81.   Published online June 30, 2010
DOI: https://doi.org/10.4143/crt.2010.42.2.77
AbstractAbstract PDFPubReaderePub
Purpose

With their prolonged survival and malnutrition, cancer patients, and especially gastrointestinal (GI) tract cancer patients, can develop Wernicke's encephalopathy (WE). The aim of this study is to remind physicians of the importance of WE and prompt management in patients with GI tract cancer.

Materials and Methods

This study is a retrospective review of 2 cases of WE in advanced gastric cancer (AGC) patients, and we review the literature for cases of GI tract cancer related to WE.

Results

A 48-year-old female with AGC presented dizziness and diplopia for 5 days and a 20 kg weight loss. Neurologic exam showed nystagmus and gaze disturbance. Her symptoms improved after daily parenteral injection of thiamine 100 mg for 17 days. A 58-year-old female with AGC presented with sudden disorientation, confusion and 15 kg weight loss. Neurologic exam showed gaze limitation and mild ataxia. Despite daily parenteral injection of thiamine 100 mg for 4 days, she died 5 days after the onset of neurologic symptoms. Combining the cases noted in the literature review with our 2 cases, the 7 gastric cancer cases and 2 colorectal cancer cases related to WE showed similar clinical characteristics; 1) a history of long-period malnutrition and weight loss, 2) relatively typical neurologic signs and symptoms and 3) specific magnetic resonance image findings. Except for 2 patients who had irreversible neurologic symptoms, the other 7 patients were improved with prompt thiamine treatment.

Conclusion

It is important to consider WE in GI tract cancer patients with acute neurologic symptoms and who are in a state of malnutrition. Thiamine should be given as soon as possible when WE is suspected.

Citations

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Prognosis of pN3 Stage Gastric Cancer
Jung Ryun Ahn, Minkyu Jung, Chan Kim, Min Hee Hong, Hong Jae Chon, Hye Ryun Kim, Hei-Cheul Jeung, Woo Jin Hyung, Sung Sook Lee, Hyun Cheol Chung, Sung Hoon Noh, Sun Young Rha
Cancer Res Treat. 2009;41(2):73-79.   Published online June 30, 2009
DOI: https://doi.org/10.4143/crt.2009.41.2.73
AbstractAbstract PDFPubReaderePub
Purpose

The aim of this study was to determine the prognosis of pN3 stage gastric cancer patients after they have undergone curative resection, and we also wanted to identify the prognostic factors according to the clinico-pathologic features.

Materials and Methods

Between January 2000 and December 2004, we retrospectively reviewed the medical records of the patients with histologically confirmed pN3 stage gastric cancer. They underwent both gastrectomy and lymphadenectomy with a curative aim. We categorized the pN3 stage patients into 2 groups; one with pN3 only (pN3M0) and the other with pN3 combined with M1 stage (pN3M1) that included peritoneal seeding, hepatic metastasis or para-aortic LN metastasis.

Results

Out of 467 patients with stage IV gastric adenocarcinoma who received surgery, 260 patients underwent curative resection and they were pathologically staged as N3. Among these 260 patients, 78 patients were classified as the pN3/M1 stage. For all the patients, the median follow-up period was 19 months (range: 1~108 months) and the median overall survival time was 16.2 months (95% CI, 14.1~18.3%). The 5-year survival rate of the pN3/M0 group was significantly higher than that of the pN3/M1 group (12.6% vs. 2.6%, respectively, p<0.0001). The identified predictor for a worse prognosis was an advanced T4 stage (HR: 3.38, 95% CI, 1.4~8.3, p=0.008) for the pN3 patients.

Conclusion

The survival for the pN3 gastric cancer patients after curative gastrectomy was significantly longer in the pN3/M0 group as compared to that of the pN3/M1 group. An advanced T stage was a predictor for a poor prognosis for the pN3 patients. Therefore, diverse treatment strategies for these heterogeneous pN3 gastric cancer patients are needed for improving their survival.

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The Effect of Adjuvant Chemotherapy on Stage IV (T4N1-3M0 and T1-3N3M0) Gastric Cancer
Tae Kyung Ha, Min Sung Jung, Kang Hong Lee, Kyeong Geun Lee, Sung Joon Kwon
Cancer Res Treat. 2009;41(1):19-23.   Published online March 31, 2009
DOI: https://doi.org/10.4143/crt.2009.41.1.19
AbstractAbstract PDFPubReaderePub
Purpose

The optimal chemotherapeutic strategy for gastric cancer patients has not been determined, especially with respect to stage and the curability of gastric cancer. The aim of this study was to evaluate the results of adjuvant chemotherapy on stage IV (T4N1-3M0 and T1-3N3M0) gastric cancer after curative gastrectomy between a chemotherapy (CTX) group and non-chemotherapy (non-CTX) group.

Materials and Methods

Among 1,760 patients who underwent gastric surgery by 1 surgeon in a single institution, 162 stage IV gastric cancer patients with curative gastrectomy were analyzed retrospectively, excluding patients with TanyNanyM1. One hundred twenty-five patients who received different chemotherapeutic regimens were compared to 37 patients who did not receive chemotherapy for reasons of old age or according to their expressed desire.

Results

The clinicopathologic factors which showed a clinically significant difference between the two groups were age and histology, which were not associated with patient survival. The CTX group was younger, and had a larger proportion of undifferentiated gastric cancers than the non-CTX group. The mode of treatment failure revealed no significant difference between the CTX and non-CTX groups. The 1, 3, and 5-year disease-free survival and the 1, 3, and 5-year disease-specific survival of the CTX group were 63.9%, 38.4%, and 32.0%, and 85.4%, 52.3%, and 39.6%, respectively, which were more favorable than the non-CTX group (p=0.015 and p=0.001, respectively). Postoperative adjuvant CTX was an independent risk factor for disease-specific survival of stage IV (T4N1-3M0 and T1-3N3M0) gastric cancer patients after curative gastrectomy by multivariate analysis (odds ratio=2.153; 95% confidence interval=1.349-3.435; p=0.001).

Conclusions

Adjuvant CTX may be associated with survival benefit for younger patients with stage IV (T4N1-3M0 and T1-3N3M0) gastric cancer with undifferentiated histology after curative gastrectomy. A randomized controlled trial to reveal the effect of stage-specific adjuvant chemotherapy should be conducted.

Citations

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Randomized, Multicenter, Phase III Trial of Heptaplatin 1-hour Infusion and 5-Fluorouracil Combination Chemotherapy Comparing with Cisplatin and 5-Fluorouracil Combination Chemotherapy in Patients with Advanced Gastric Cancer
Kyung Hee Lee, Myung Soo Hyun, Hoon-Kyo Kim, Hyung Min Jin, Jinmo Yang, Hong Suk Song, Young Rok Do, Hun Mo Ryoo, Joo Seop Chung, Dae Young Zang, Ho-Yeong Lim, Jong Youl Jin, Chang Yeol Yim, Hee Sook Park, Jun Suk Kim, Chang Hak Sohn, Soon Nam Lee
Cancer Res Treat. 2009;41(1):12-18.   Published online March 31, 2009
DOI: https://doi.org/10.4143/crt.2009.41.1.12
AbstractAbstract PDFPubReaderePub
Purpose

Heptaplatin (Sunpla) is a cisplatin derivative. A phase IIb trial using heptaplatin resulted in a 34% response rate with mild nephrotoxicity. We conducted a randomized phase III trial of heptaplatin plus 5-FU compared with cisplatin plus 5-FU in patients with advanced gastric cancer.

Materials and Methods

One hundred seventy-four patients (heptaplatin, n=88; cisplatin, n=86) from 13 centers were enrolled. The eligibility criteria were as follows: patients with pathologically-proven adenocarcinoma, chemonaive patients, or patients who had received only single adjuvant chemotherapy, and who had a measurable or evaluable lesion. On day 1, heptaplatin (400 mg/m2) or cisplatin (60 mg/m2) was given over 1 hour with 5-FU (1 gm/m2) on days 1~5 every 4 weeks.

Results

At the time of survival analysis, the median overall survival was 7.3 months in the 5-FU + heptaplatin (FH) arm and 7.9 months in the 5-FU + cisplatin (FP) arm (p=0.24). Of the FH patients, 34.2% (complete response [CR], 1.3%; partial response [PR], 32.9%) experienced a confirmed objective response compared with 35.9% (CR 0%, PR 35.9%) of FP patients (p=0.78). The median-time-to-progression was 2.5 months in the FH arm and 2.3 months in the FP arm. The incidence of neutropenia was higher with FP (28%) than with FH (16%; p=0.06); grade 3~4 nausea and vomiting were more frequent in the FP than in the FH arm (p=0.01 and p=0.05, respectively). The incidence of increased proteinuria and creatininemia was higher with FH than with FP; however, there was no statistical difference. There were no treatment-related deaths.

Conclusion

Heptaplatin showed similar effects to cisplatin when combined with 5-FU in advanced gastric cancer patients with tolerable toxicities.

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A Phase II Study of Paclitaxel and Cisplatin as Salvage Therapy for Patients with Advanced or Metastatic Gastric Cancer
Bong-Gun Seo, Sung Yong Oh, Dong Mee Lee, Hyun Seung Yoo, Suee Lee, Seong-Geun Kim, Sung-Hyun Kim, Hyuk-Chan Kwon, Hyo-Jin Kim
Cancer Res Treat. 2007;39(1):6-9.   Published online March 31, 2007
DOI: https://doi.org/10.4143/crt.2007.39.1.6
AbstractAbstract PDFPubReaderePub
Purpose

To evaluate the therapeutic activity and safety of paclitaxel and cisplatin combination chemotherapy in patients with advanced or metastatic gastric cancers that are unresponsive to primary chemotherapy.

Materials and Methods

Advanced or metastatic gastric cancer patients unresponsive to first line chemotherapy were entered into this trial. The treatment regimen consisted of paclitaxel, 175 mg/m2 by 3-hour infusion on day 1, and cisplatin, 60 mg/m2 by 1 hour infusion on day 1, with the treatment repeated every 3 weeks.

Results

37 patients were entered in this study, with 32 fully evaluable for response. 4 (13%), 13 (40%) and 15 (47%) patients achieved a partial response, stable disease and progressed, respectively. The median time to progression was 4.0 months (95% CI: 2.0~6.0 months), and the median overall survival was 12.6 months (95% CI: 5.5~19.7 months), with a 1-year survival rate of 54%. Of a total of 135 cycles of chemotherapy, grades 3 and 4 hematological toxicities were neutropenia (14%) and anemia (3%). Grade ≥2 neuropathy was observed in 6 patients (17%).

Conclusion

The combination of paclitaxel and cisplatin is an effective and tolerable salvage treatment modality for advanced gastric cancer.

Citations

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  • Treatment Outcome and Safety of the TCX Regimen for Advanced Gastric Cancer: A Prospective Cohort Study
    Hieu Trong Nguyen, Kien Hung Do, Nguyen Ba Le, Thang Tran
    Cancer Management and Research.2022; Volume 14: 2825.     CrossRef
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Prognostic Significance of Immunohistochemical Expression of EGFR and C-erbB-2 Oncoprotein in Curatively Resected Gastric Cancer
Hong Suk Song, Young Rok Do, In Ho Kim, Soo Sang Sohn, Kun Young Kwon
Cancer Res Treat. 2004;36(4):240-245.   Published online August 31, 2004
DOI: https://doi.org/10.4143/crt.2004.36.4.240
AbstractAbstract PDFPubReaderePub
Purpose

The purpose of this study was to investigate the prognostic significance of the expression of EGFR and C-erbB-2 gene products by immunohistochemical analysis for curatively resected gastric adenocarcinoma.

Materials and Methods

Between January 1996 and December 2001, 739 patients with curatively resected gastric cancer patients underwent immunohistochemical staining for EGFR and C-erbB-2 proteins, and we retrospectively analyzed their correlation with the clinical outcome.

Results

The overexpressions of EGFR and C-erbB-2 were 25.4% and 26.2%, respectively. The overexpressions of EGFR was associated with the more poorly differentiated tumor (p=0.000) and with neuronal invasion (p=0.03). Overexpression of C-erbB-2 was associated with less vascular invasion (p=0.001). Tumor depth or node metastasis was not related to the overexpression of EGFR or C-erbB-2. The seven-year overall survival and relapse-free survival rates were 87.2% and 75.8%, respectively. Upon multivariate Cox regression analysis, the tumor stage, tumor size and patient age were important prognostic factors for overall survival, and tumor stage was the important factor for relapse-free survival. Overexpressions of EGFR or c-erbB-2 were not significant prognostic factors.

Conclusion

Immunohistochemical staining of EGFR and C-erbB-2 gene products were not independent prognostic factors for predicting the overall survival and the relapse-free survival in curatively resected gastric cancer.

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    Roberto de Moraes Cordts Filho, Paulo Kassab, Laura Carolina Lopez Claro, Mabel Tatty de Medeiros Fracassi, Patrícia Colombo-Souza, Daniel Kenji Fukuhara, Fábio Rodrigues Thuler, Wilson Rodrigues de Freitas Junior, Elias Jirjoss Ilias, Carlos Alberto Malh
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Dietary Habit and Helicobacter pylori Infection in Early Gastric Cancer Patient
Sang Ah Lee, Daehee Kang, Weon Seon Hong, Ki Nam Shim, Jae Won Choe, Haymie Choi
Cancer Res Treat. 2002;34(2):104-110.   Published online April 30, 2002
DOI: https://doi.org/10.4143/crt.2002.34.2.104
AbstractAbstract PDF
PURPOSE
Helicobacter pylori (H. pylori) is now generally accepted to be strongly associated with the development of gastric cancer, as well as intakes of some salted foods, charred foods, etc. To evaluate the association among dietary habits, H. pylori infection, and early gastric cancer in Koreans, a hospital based case-control study was conducted. Material and Method: A total of 268 persons participated in this case-control study. Sixty nine patients were newly diagnosed as an early gastric cancer (EGC) at the Division of Gastroenterology, Department of Internal Medicine, Asan Medical Center, Seoul, Korea. One hundred ninety-nine subjects with no symptoms who visited the Health Promotion Center for their general checkups were selected as the controls. All subjects were examined for H. pylori infection, biochemical blood test the life style, and dietary habit were interviewed by a trained dietition with semi-quantitative food frequency question naire (FFQ) and adaptive salt concentration were taste evaluated.
RESULTS
H. pylori seropositivity was observed in 88.4% in cases, as compared with 74.9% in controls (OR=2.5, 95% CI: 1.1-5.7). The adaptive salt concentration was associated with early gastric cancer risk (chi-squir=50.8, p<0.001). The analysis of food intake frequency demonstrated that early gastric cancer risk was reduced by the intake of clear soups, raw vegetables, fruits and juices, beef with vegetables and soybean curds. On the other hand, high intake of salt-fermented fish and kimchi elevated the risk of early gastric cancer.
CONCLUSION
These results suggest that some dietary factors and H. pylori infection have a significant association with the development of early gastric cancer.

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    Ji Hyun Kim, Shinyoung Jun, Jeongseon Kim
    Epidemiology and Health.2023; 45: e2023102.     CrossRef
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The Expression of Insulin-like Growth Factor (IGF), IGF- Binding Protein (IGFBP) and the Role of IGFBP-3 in the Korean Gastric Cancer Cell Lines
Dae Yeol Lee, Ho Keun Yi, Doo Hyun Yang, Pyung Han Hwang
J Korean Cancer Assoc. 2001;33(2):121-129.
AbstractAbstract PDF
PURPOSE
Insulin-like growth factor (IGF)-I and II are potent mitogens, postulated to exert autocrine and paracrine effects on growth regulation in human gastric cancer. In this study, we evaluated the expression of IGF-I, -II and IGFBPs in a panel of human gastric cancer cell lines. We also evaluated whether high expression of IGFBP-3 in human gastric cancer cells may increase the sensitivity to the anti-proliferative agents.
MATERIALS AND METHODS
10 human korean gastric cancer ceIl lines and 1 Caucacian gastric adenocarcinoma cell line were used for this study. IGF and IGFBP expressions were evaluated by RT-PCR. IGFBP proteins in conditioned media were detected by Western Ligand Blot. Cell survival after treatment of anti-proliferative agents was assessed by MTT assay.
RESULTS
IGF-I and II were expressed in all gastric cancer cell lines. In addition, IGF-I and II stimulated the proliferation of gastric cancer cells. The expression of IGFBP-2 was found in all gastric cancer cell lines. IGFBP-4 was expressed in the most of cell lines. IGFBP-3, -4 and -6 were expressed in about 50% of cell lines. The growth inhibition of IGFBP-3 expressing cells by anti- proliferative agents was more significant than that of IGFBP-3 nonexpressing cells. Cell growth inhibition with treatment of these agents was accompanied by increased IGFBP-3 mRNA level.
CONCLUSION
These data confirm that IGF-I, -II, and certain IGFBPs were expressed in gastric cancer cells, and gastric cancer cells show the differential growth inhibition by anti-proliferative agents. The differential growth inhibitory effect of anti-proliferative agents is, at least in part, mediated through up-regulation of IGFBP-3 expression.
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Clinicopathological Analysis for Recurrence after Surgery for Early Gastric Cancer
K W Chung, S J Cho, H K Yang, W H Kim, K U Lee, K J Choe, Y I Kim, J P Kim
J Korean Cancer Assoc. 2000;32(2):312-320.
AbstractAbstract PDF
PURPOSE
The incidence of early gastric cancer (EGC) is increasing in Korea. The prognosis of EGC is excellent but a small portion of patients experience recurrence after curative resection. We aimed to study recurrence rate of EGC, recurrence pattern of EGC and to find predicting factors for recurrence. We analyzed treatment results after recurrence in EGC.
MATERIALS AND METHODS
One thousand four hundred fifty eight patients with EGC at Department of Surgery, Seoul National University Hospital (1986~1995) were reviewed for recurrence retrospectively.
RESULTS
Twenty-six patients had recurrence after curative resection (1.79%). Thirteen cases (50%) recurred within 24 months (early recurrence) and late recurrence after 60 months occured in 4 cases (15%). The common modes of recurrence were locoregional (9, 34.6%) and distant metastasis (9, 34.6%). Submucosal invasion was in 19 cases and lymph node metastasis was positive in 14 cases. Median survival after recurrence was 5.6 months. Median survival after recurrence was 3.1 months after conservative management, 5.8 months after chemotherapy, and 46.8 months after resection. Recurrence rate was significantly higher in submucosal invasion group than mucosal invasion group (2.6% vs. 1.0%, p<0.05) and lymph node metastasis positive group than negative group (7.4% vs. 1.0%, p <0.001) by univariate analysis. Multivariate analysis revealed significantly high correlation between positive lymph node metastasis and recurrence (p < 0.001).
CONCLUSION
Lymph node metastasis is the most significant predictor of recurrence. Resection for locoregional recurrence can be beneficial.
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Clinical Analysis of Patients with Gastrectomized Stage IV Stomach Cancer
Byeung Ik Woo, Seong Heum Park, Kyong Woo Choi
J Korean Cancer Assoc. 1999;31(6):1120-1128.
AbstractAbstract PDF
PURPOSE
The prognosis of stage IV stomach cancer patients is very poor and the effectiveness of radical surgery including extended lymphadenectomy and combined resection in these patients is still controversial. The purposes of this retrospective study were to identify the prognostic factors and to evaluate the effectiveness of extended lymphadenectomy and combined resection in stage IV stomach cancer paients.
MATERIALS AND METHODS
Of 585 patients who were operated for stomach cancer at the NMC from Jan. 1987 to Oct. 1993, 154 patients of stage IV stomach cancer (121 patients who had distant metastasis and 33 patients who had not) were identified. We analyzed data of these 154 patients to find the characteristic clinicopathological features, the prognostic factors and the proper extent of surgical treatment.
RESULTS
Comparing with stage I, II and III groups, larger tumor size, higher proportions of Borrmann type IV and undifferentiated carcinoma and higher rates of lymph node metastasis and combined resection were noticed in stage IV stomach cancer group. In combined resection, pancreas tail was mainly resected due to tumor invasion but spleen was mainly resected for the completeness of lymph node dissection. In multivariate analyses, peritoneal metastasis and postoperative residual tumor were independent prognostic factors. The overall 5-year survival rate was 14.6%. Stage IV stomach cancer patients without distant metastasis had better 5-year survival rate than that of those who had distant metastasis (34.3% vs 7.9%, p=0.00001).
CONCLUSIONS
Radical procedures including extended lymphadenectomy and combined resection of the invaded organs should be considered in the stage IV stomach cancer patients without distant metastasis.
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Clinical Analysis of Operative treatment of Remnant Gastric Cancer
Kwang Ho Lee, Jong Inn Lee, Ho Yoon Bang, Woo Chul Noh, Dae Yong Hwang, Dong Wook Choi, Nam Sun Paik, Nan Mo Moon
J Korean Cancer Assoc. 1999;31(5):964-971.
AbstractAbstract PDF
PURPOSE
Authors analyzed the clinico-pathologic parameters of 34 remnant gastric cancers to know the general behavior and prognosis of remnant gastric cancer.
MATERIALS AND METHODS
Medical records of 34 patients were reviewed retrospectively, who were diagnosed as remnant gastric adenocarcinoma and underwent operation in Korea Cancer Center Hospital from February of 1988 to March of 1998.
RESULTS
The incidence of remnant gastric cancer was 0.7% (34/4,904 cases). Sex ratio, male to female, was 2.8: 1. Mean age was 55 years of age. Diagnoses of primary lesion were 10 cases of benign lesion, 24 cases of malignant lesion. The operation for the remnant gastric cancer is total gastrectomy or extended total gastrectomy. The most common extended-resected organ was spleen (21 cases). The morbidity following operation of remnant gastric cancer were quite rare and treated conservatively. The overall five year survival rate was 11.3%.
CONCLUSION
Authors concluded that aggressive operation of remnant gastric cancer is warranted, as it is proved relatively safe and is the only option to lengthen patients survival and to alleviate their QOL (quality of life).
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The Study for the Postoperative Changes of Peripheral Lymphocytes and their Subsets as Immune Function in Advanced Gastric Cancer
Yoon Sun Joh, Yon Geul Joh, Min Young Cho, Sung Ock Suh
J Korean Cancer Assoc. 1999;31(5):946-954.
AbstractAbstract PDF
PURPOSE
This study evaluated the immunologic function of the postoperative lymphacytes and their subsets during 2 years after the curative resection of advanced gastric cancer.
MATERIALS AND METHODS
The peripheral lymphocytes and their subset in 64 advanced gastric cancer patients were preoperatively and postoperatively measured by using fluorescent conjugated monoclonal antibodies with flow cytometry. The monoclonal antibodies to T lymphocyte (CD3), B lymphocyte (CD19), helper-inducer cell (CD4), suppressor- cytotoxic cell (CD8), natural killer cell (CD16), and activated T cell (HLA-DR) antigens were used individually corresponding to T lymphocytes, B lymphocytes, helper-inducer T cells, suppressor-cytotoxic T cells, natural killer cells and activated T cells in post- operative periods (1, 3, 6, 12, 18, K 24 months). Their postoperative data were compared to the preoperative data in advanced gastric cancer.
RESULTS
On sequential measurements, peripheral lymphocytes were significantly decreased in postoperative 1 month than preoperative 1 day but they were gradually increased in postoperative 3, 6, 12, 18 and 24 months with significance. The B lymphocytes were significantly decreased in postoperative 3 and 6 months. NK cells were significantly increased in postoperative 3 months.
CONCLUSION
The two years postoperative changing patterns of peripheral lymphocytes and their subsets may not be improved in advanced gastric cancer patients which were undertaken curative surgery except lymphocyte.
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Comparison of Old and New TNM Classification of Gastric Cancer
Wan Sik Yu, Ho Young Chung, In Soo Suh
J Korean Cancer Assoc. 1999;31(5):939-945.
AbstractAbstract PDF
PURPOSE
We analyzed the appropriateness of the changes regarding the classification of gastric cancer in the fifth edition of the UICC TNMclassification of malignant tumors.
MATERIALS AND METHODS
Gastrectomy was performed in 727 patients with gastric cancer between 1990 and 1994. The pN, pM and stage of each patient was reclassified according to the 5th edition. The previous and present pN, pM and stage of each patient were compared.
RESULTS
Although ten cases of pNO were reclassified as pNX because the number of dissected regional lymph nodes was less than 15, there revealed a good correlation between old and new pN classification. Survival distribution according to the old pN classification identified significant differences among subgroups of patients. And this was true for the new pN classification. Nine pM1 patients who had involved hepatoduodenal lymph node were reclassified into pMO. Although 97 patients were down-staged and 30 patients were up-staged, comparison of stage according to two classifications revealed good correlation. Both survival distributions according to the new and old stage grouping identified significant differences among subgroups of patients.
CONCLUSION
The classification of lymph node metastasis and stage grouping in gastric cancer should be more scientific and rational in future revisions.
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The Clinical Value of CD44 in Gastric Cancer
Kyung Ho Ryu, Hyung Chul Kim, Moo Jun Baek, Ok Pyung Song, Chang Jin Kim
J Korean Cancer Assoc. 1999;31(5):921-930.
AbstractAbstract PDF
PURPOSE
This research was performed to investigate the relationship between CD44 and cancer cell invasion depth, histologic differentiation, tumor size and lymph node metastasis in the gastric carcinoma.
MATERIALS AND METHODS
In 20 cases of early gastric cancer and 40 cases of advanced gastric cancer, the immunohistochemical staining for CD44v3 and CD44v5 was performed.
RESULTS
1. In all 60 cases, the positive rates for CD44v3 and CD44v5 were 18.3% and 71.7% respectively. 2. CD44v5 was expressed in 45% of early gastric cancer and 85% of advanced gastric cancer. 3. Larger tumor exhibited higher positive rates for CD44v5. 4. There were 28 cases of lymph node metastases out of 43 cases of CD44v5-positive primary gastric carcinoma (65.1%), and were 4 cases of lymph node metastases out of 17 CD44v5-negative cases (23.5%). 5. The 5 year survival rate was low in CD44v5- positive cases (p-value=0.039).
CONCLUSION
The tumors that exhibit deep invasion and have large size and lymph node metastases tend to have more frequent expression of CD44v3 and CD44v5. In especially CD44v5. We found a good correlation between he expression of CD44v5 and the established prognostic factors. Actually we can use the CD44v5 rather than CD44v3 as a prognostic factor in advanced gastric cancer.
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Matrix Metalloproteinases and Their Inhibitors in Gastric Carcinoma
Byung Sik Kim, Yutaka Yonemura, Hideto Fujita, Naomi Nojima, Taiichi Kawamuta, Sachio Fushida, Takashi Fujimura, Itsuo Miyazaki, Kouichi Miwa, Hiroshi Itoh, Raul Falla, Yoshio Endo, Takuma Saski, Hiroshi Yamamoto
J Korean Cancer Assoc. 1999;31(5):912-920.
AbstractAbstract PDF
No abstract available.
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Prognostic Significance of p53, c-erbB-2, nm23 and Ki-67 Expression in Patients with Advanced Gastric Carcinoma
Sung Hoon Noh, Chang Hak Yoo, Ho Gune Kim, Young Ha Oh, Jin Sik Min
J Korean Cancer Assoc. 1999;31(4):699-709.
AbstractAbstract PDF
PURPOSE
We investigated the prognostic impacts of p53, c-erbB-2, nm23 and Ki-67 expression in patients with stage II and IIIA gastric carcinoma who underwent curative (RO) resections.
MATERIALS AND METHODS
261 paraffin-embedded gastric carcinoma tissues (stage II, 121; stage IIIA, 135) were stained with the monoclonal antibodies, p53, c-erbB-2, nm23 and Ki-67 using the labelled streptovidin biotin method. The positivity was determined by two pathologists who were kept blind for the patients outcome.
RESULTS
The overexpression was seen in 51.7% for p53, 11.9% for c-erbB-2, and 70.1% for nm23. The mean Ki-67 labelling index was 25.5+ 16.7. The rates of overexpression between the stage II and stage IIIA were not significantly different in all these molecules. Overexpression of p53 was more likely to be associated with old age and lymph node metastasis. Overexpression of c-erbB-2 was more likely to be associated with Borrmann type I, II and well-differentiated tumor. However, nm23 was more frequently expressed in patients with older age and well-differentiated tumor. In survival analysis, the overexpressions of p53 and Ki-67 were significantly associated with poor prognosis of the patients (p<0.01), but c-erbB-2 and nm23 were not related to the patients outcome. In a multivariate analysis of prognostic factors, only. the lymph node metastasis was an independent prognostic factor.
CONCLUSION
Although the values did not reach statistical significance in a multivariate analysis, the overexpression of p53 and Ki-67 tended to have adverse effects an the prognosis of patients with gastric cancer.
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Pattern of Recurrence after Curative Resection of Gastric Cancer
Jae Hong Jang, Young Jin Kim, Dong Yi Kim, Hyung Rok Kim, Shin Kon Kim
J Korean Cancer Assoc. 1999;31(3):466-472.
AbstractAbstract PDF
PURPOSE
Despite radical lymph node dissection and combined resection, the operative result of progressive gastric cancer remains unsatisfactory. The prognosis of gastric cancer has not been improved. In case of recurred gastric cancer, the problem is low curative resection rate. We tried to study the pattem of recurrence after curative resection for gastric cancer.
MATERIALS AND METHODS
We had retrospectively analyzed the recurrence pattern of 191 patients who recurred after curative resection of gastric cancer. We analyzed the interval between operation and recurrence, primary tumor location, tumor histologic type, Borrmann's type, pathologic stage, DNA ploidy pattem and lymph node metastasis.
RESULT
The number of recurred gastric cancer patients was 191. The M: F ratio was 2.03: 1. Seven cases were early gastric cancer. The interval between operation and recurrence was from 1 month to 130 months. The early recurrence within 24 months was found in 147 patients (77.0%), the intermediate recurrence from 25 months to 60 months was found in 38 patients (19.9%), the late reeurrence after 60 months was found in 6 patients (3.1%). The pattems of recurrence were as follows: loco-regional recurience, including lymph node and site of anastomosis, was found in 51 cases, liver metastasis in 37 cases, peritoneal metastasis in 74 cases, extraperitoneal metastasis in 29 cases including Virchows node. In undifferentiated cancer, peritoneal metastasis was higher than in other histologic types (p<0.05). 59 cases was found in stage IV, 47 cases in stage IIIb, 43 cases in stage IIIa, 31 cases in stage II, 8 cases in stage Ib, and 3 cases in stage Ia. We found peritoneal metastasis was very high in stage IIIb. The 5-year survival was better in loco-regional group than that of other patterns of recurrence.
CONCLUSION
Recurrence after operation was found within 24 months, that in most of patients, so the follow up is very important in this period and the recurred pattem after curative resection for gastric cancer was related with cell differentiation of primary tumor and stage. In local recurrence, the survival rate was higher than the other pattern of recurrence.
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Combined Resection in Advanced Gastric Cancer
Dong Woo Shin, Chang Hak Yoo, Sung Hoon Noh, Jin Sik Min
J Korean Cancer Assoc. 1999;31(3):448-457.
AbstractAbstract PDF
PURPOSE
Prognosis of primary gastric cancer invading neighboring organs is very poor. However, with en bloc resection, a relatively favorable prognosis can be expected even in patients with such advanced cancer. But there has been controversy on the effectiveness of gastrectomy combined with en bloc resection of the invaded organs, and we conducted this study to evaluate the prognostic effects as well as the outcome of the combined resection.
MATERIALS AND METHODS
Among 2,603 who underwent gastrectomy due to gastric carcinoma from January 1987 to December 1994 at the Department of Surgery, Yonsei University College of Medicine, 157 patients (6.0%) in whom curative combined resections of grossly invaded adjacent organs (cT4) were perfonned entered this study. Any case with distant metastasis was excluded. Comparisons and multivariate analysis between the invasion (pT3) group and the non-invasion (pT4) group were made for age, sex, tumor size, location, Borrmann type, depth of invasion, lymph node metastasis, histologic type and 5-year survival rate.
RESULTS
One-organ combined resection was done in 60 (38.2%) patients; Two-organ, in 80 (51.0%) patients; and three-organ, in 17 (10.8%) patients. Most commonly combined organ was distal pancreas and transverse colon was the next. Histologic confirmation of invasion was made in 40.9%. 157 patients with T4 were divided into pT3 or pT4. Significant differences were found in type of operation, location of tumor, and TNM staging. Postoperative complications of combined resection were observed in 48 cases (30.6%) and the wound infection was the most frequent one. There were only 2 cases (1.3%) of immediate postoperative mortality in the combined group, and the causes of death were pulmonary complication and acute renal failure. Five-year survival rate (5-YSR) of pT3 group was 43.0% and that of pT4 was 26.2%. In comparison of 5-YSR according to TNM stages, no significant difference was found between pT3 and pT4 (45.0% vs. 66.7% in IIIa; 25.4% vs. 18.4% in IV). No difference of 5-YSR was observed in the groups categorized according to the number of resected organs. The comparison of 5-YSR between the 157 curatively-combined cases and the 63 palliatively-combined cases showed a significant difference (35.6% vs. 4.2%, p=0.000). Multivariate analysis showed that lymph node metastasis and microscopic tumor invasion served as significant parametets.
CONCLUSION
En bloc combined resection of adjacent invaded organs along with systematic lymph node dissection would be beneficial to gastric cancer patients with neighboring organ invasion.
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Patterns of the First Failure after Curative Resection of Gastric Cancer in Korean Female Patients
Hark Kyun Kim, Min Hee Ryu, Soo Mi Bang, Keun Young Yoo, Dae Seog Heo, Yung Jue Bang, Noe Kyeong Kim
J Korean Cancer Assoc. 1999;31(2):246-255.
AbstractAbstract PDF
PURPOSE
The major aim of this study is to evaluate the patterns of recurrence of the stomach cancer after curative resection.
MATERIALS AND METHODS
Patterns of the fimt failure and survival after relapse of 136 female gastric cancer patients who had received curative resection were evaluated. Factors influencing survival after relapse were analyzed using Cox proportional hazard model.
RESULTS
Peritoneal relapse was the most common pattern of the first failure, with 3-year estimate of overall peritoneal relapse being 13.0%. The 3-year estimates of overall local- regional relapse, liver metastasis, and extraabdominal relapse were 11.2%, 4.8%, and 3.8%, respectively. Patients younger than 45 years developed peritoneal relapse at a significantly higher rate than patients aged 45-65 years (p 0.037). The most significant factor affecting the survival of relapsed patients was whether resection was performed for recurrent disease without remaining gross residual disease. Patterns of relapse did not significantly affect survival, but patients whose recurrences were limited to local-regional area tended to survive longer than those with extraaMominal component (p=0.067).
CONCLUSION
Peritoneal relapse was the most common pattem and significantly associated with younger age after curative resection af gastric cancer of Korean female patients.
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Tumor Angiogenesis Correlates with Prognosis in Patients with Stage 3 Gastric Cancer
Kyung Suk Chung, Chang Gul Hong, Hyun Uk Shin, Jung Weon Shim, Hae Kyung Ahn
J Korean Cancer Assoc. 1999;31(2):240-245.
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PURPOSE
Several studies suggest that tumor angiogenesis is a significant prognostic factor in carcinoma of the breast, lung, prostate, oral cavity, and colon. We assessed whether intensity of tumor angiogenesis, as measured by microvessel counts in histologic sections, correlates with prognosis in patients with stage III gastric cancer.
MATERIALS AND METHODS
Paraffin-embedded sections from 49 patients (23 stage IIla, 26 stage IIIb) with primary gastric cancer that had been completely removed were analyzed for angiogenesis. Vessels were stained with anti-factor VIII polyclonal antibody, and areas with the most discrete microvessels were counted in a 200X field.
RESULTS
Patients with stage IIIa gastric cancer had fewer microvessels than those with stage IIIb gastric cancer (32.8+-14.5 vs. 40.3+-16.1, P=0.106). The mean microvessel count from patients who were alive were significantly lower than that from patients who had died at the time of follow-up (24.8+-10.0 vs. 42.9+- 14.5, P=O.OOO). The 5-year survival rate of patients with count less than 33 microvessels was higher than that of patients with count more than 33 microvessels (59.9% vs. 11.6%, P= 0.000). On multivariate analysis by Cox proportional hazards model, the microvessel count was a significant prognostic factor of stage III gastric cancer.
CONCLUSION
Tumor angiogenesis assessed by microvessel count may be a significant prognostic factor of stage III gastric cancer and may prove valuable in selecting patients with stage III gastric cancer for aggressive adjuvant therapy and closer postoperative follow-up.
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Clinicopathological Features of Replication Error-positive Tumors in Single or Multiple Gastric Carcinomas
Gyeong Hoon Kang, So Dug Lim, Bong Hee Kim, Jae Jeong Jang, Hwoon Yong Jung, Jae Y Ro
J Korean Cancer Assoc. 1999;31(2):230-239.
AbstractAbstract PDF
PURPOSE
Replication error (RER) is an important mechanism in the gastric carcinogenesis and known to contribute to the pathogenesis of multiple gastric carcinomas (GCs). A proportion of sporadic GCs are RER-positive and RER-positive GCs have been reported to have distinct clinicopathological features. The purpose of the present study included whether there are characteristic clinicopathological features of RER-positive GCs and whether there is a difference of RER frequency between single and multiple GC in age-matched patients.
MATERIALS AND METHODS
We analyzed 96 cases of single GC and 19 cases of multiple GC for the RER status using 7 microsatellite loci to assess their clinicopathological features.
RESULT
Ten cases (10%) of 96 single GCs and five cases (26.3%) of 19 multiple GCs were RER-positive. However, comparison of RER frequency between single and multiple GCs in patients older than 60 years revealed no significant difference. Jn single GCs, RER-positive tumors showed a proclivity toward older age, antral location, and elevated gross type (Borrmann 2 or EGC IIa or I). Multiple GCs with RER showed a female-sex preponderance. Clinicopathological features of RER-positive tumors were similar in both single and multiple GCs.
CONCLUSION
The present study revealed that RER-positive tumors had distinct clinico- pathological features and there was no significant difference of RER frequency between single and multiple GC in elderly patients. Our data suggests that RER contributes to the pathogenesis of GC, either single or multiple, in aged patients.
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Cancer Res Treat : Cancer Research and Treatment
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