Sangwon Lee, Yeon Ho Choi, Hak Min Kim, Min Ah Hong, Phillip Park, In Hae Kwak, Ye Ji Kang, Kui Son Choi, Hyun-Joo Kong, Hyosung Cha, Hyun-Jin Kim, Kwang Sun Ryu, Young Sang Jeon, Hwanhee Kim, Jip Min Jung, Jeong-Soo Im, Heejung Chae
Cancer Res Treat. 2025;57(1):19-27. Published online July 15, 2024
The common data model (CDM) has found widespread application in healthcare studies, but its utilization in cancer research has been limited. This article describes the development and implementation strategy for Cancer Clinical Library Databases (CCLDs), which are standardized cancer-specific databases established under the Korea-Clinical Data Utilization Network for Research Excellence (K-CURE) project by the Korean Ministry of Health and Welfare. Fifteen leading hospitals and fourteen academic associations in Korea are engaged in constructing CCLDs for 10 primary cancer types. For each cancer type-specific CCLD, cancer data experts determine key clinical data items essential for cancer research, standardize these items across cancer types, and create a standardized schema. Comprehensive clinical records covering diagnosis, treatment, and outcomes, with annual updates, are collected for each cancer patient in the target population, and quality control is based on six-sigma standards. To protect patient privacy, CCLDs follow stringent data security guidelines by pseudonymizing personal identification information and operating within a closed analysis environment. Researchers can apply for access to CCLD data through the K-CURE portal, which is subject to Institutional Review Board and Data Review Board approval. The CCLD is considered a pioneering standardized cancer-specific database, significantly representing Korea’s cancer data. It is expected to overcome limitations of previous CDMs and provide a valuable resource for multicenter cancer research in Korea.
Citations
Citations to this article as recorded by
Exploring PIXE Applications in Oncology: A Comprehensive Review G. J. Naga Raju International Journal of Advanced Research in Science, Communication and Technology.2025; : 261. CrossRef
Predictive Mortality and Gastric Cancer Risk Using Clinical and Socio-Economic Data: A Nationwide Multicenter Cohort Study Seong Uk Kang, Seung-Joo Nam, Oh Beom Kwon, Inhyeok Yim, Tae-Hoon Kim, Na Young Yeo, Myoung Nam Lim, Woo Jin Kim, Sang Won Park Cancers.2024; 17(1): 30. CrossRef
Dong-Woo Choi, Min Yeong Guk, Hye Ri Kim, Kwang Sun Ryu, Hyun-Joo Kong, Hyo Soung Cha, Hyun-Jin Kim, Heejung Chae, Young Sang Jeon, Hwanhee Kim, Jipmin Jung, Jeong-Soo Im, Kui Son Choi
Cancer Res Treat. 2024;56(4):1014-1026. Published online April 30, 2024
This paper provides a comprehensive overview of the Cancer Public Library Database (CPLD), established under the Korean Clinical Data Utilization for Research Excellence project (K-CURE). The CPLD links data from four major population-based public sources: the Korea National Cancer Incidence Database in the Korea Central Cancer Registry, cause-of-death data in Statistics Korea, the National Health Information Database in the National Health Insurance Service, and the National Health Insurance Research Database in the Health Insurance Review & Assessment Service. These databases are linked using an encrypted resident registration number. The CPLD, established in 2022 and updated annually, comprises 1,983,499 men and women newly diagnosed with cancer between 2012 and 2019. It contains data on cancer registration and death, demographics, medical claims, general health checkups, and national cancer screening. The most common cancers among men in the CPLD were stomach (16.1%), lung (14.0%), colorectal (13.3%), prostate (9.6%), and liver (9.3%) cancers. The most common cancers among women were thyroid (20.4%), breast (16.6%), colorectal (9.0%), stomach (7.8%), and lung (6.2%) cancers. Among them, 571,285 died between 2012 and 2020 owing to cancer (89.2%) or other causes (10.8%). Upon approval, the CPLD is accessible to researchers through the K-CURE portal. The CPLD is a unique resource for diverse cancer research to investigate medical use before a cancer diagnosis, during initial diagnosis and treatment, and long-term follow-up. This offers expanded insight into healthcare delivery across the cancer continuum, from screening to end-of-life care.
Citations
Citations to this article as recorded by
Precision Forecasting in Colorectal Oncology: Predicting Six-Month Survival to Optimize Clinical Decisions Jaehyuk Lee, Youngchae Cho, Yeunwoong Kyung, Eunchan Kim Electronics.2025; 14(5): 880. CrossRef
The Impact of Advanced Care Planning on Hospice Utilization in Patients with Cancer: A Nationwide Analysis in Korea Woorim Kim, Boram Kim, Minju Kim, Jin Young Choi Cancers.2025; 17(9): 1471. CrossRef
Risk Factors and Prevention of Stomach Cancer, Excluding Helicobacter pylori Seung-Woo Lee The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2024; 24(3): 243. CrossRef
Prediction model for survival of younger patients with breast cancer using the breast cancer public staging database Ha Ye Jin Kang, Minsam Ko, Kwang Sun Ryu Scientific Reports.2024;[Epub] CrossRef
Predictive Mortality and Gastric Cancer Risk Using Clinical and Socio-Economic Data: A Nationwide Multicenter Cohort Study Seong Uk Kang, Seung-Joo Nam, Oh Beom Kwon, Inhyeok Yim, Tae-Hoon Kim, Na Young Yeo, Myoung Nam Lim, Woo Jin Kim, Sang Won Park Cancers.2024; 17(1): 30. CrossRef
Wonyoung Choi, Yun-Hee Kim, Sang Myung Woo, Yebeen Yu, Mi Rim Lee, Woo Jin Lee, Jung Won Chun, Sung Hoon Sim, Heejung Chae, Hyoeun Shim, Keun Seok Lee, Sun-Young Kong
Cancer Res Treat. 2023;55(4):1077-1086. Published online June 12, 2023
Purpose Patient-derived tumor cells can be a powerful resource for studying pathophysiological mechanisms and developing robust strategies for precision medicine. However, establishing organoids from patient-derived cells is challenging because of limited access to tissue specimens. Therefore, we aimed to establish organoids from malignant ascites and pleural effusions.
Materials and Methods Ascitic or pleural fluid from pancreatic, gastric, and breast cancer patients was collected and concentrated to culture tumor cells ex vivo. Organoids were considered to be successfully cultured when maintained for five or more passages. Immunohistochemical staining was performed to compare the molecular features, and drug sensitivity was assayed to analyze the clinical responses of original patients.
Results We collected 70 fluid samples from 58 patients (pancreatic cancer, n=39; gastric cancer, n=21; and breast cancer, n=10). The overall success rate was 40%; however, it differed with types of malignancy, with pancreatic, gastric, and breast cancers showing 48.7%, 33.3%, and 20%, respectively. Cytopathological results significantly differed between successful and failed cases (p=0.014). Immunohistochemical staining of breast cancer organoids showed molecular features identical to those of tumor tissues. In drug sensitivity assays, pancreatic cancer organoids recapitulated the clinical responses of the original patients.
Conclusion Tumor organoids established from malignant ascites or pleural effusion of pancreatic, gastric, and breast cancers reflect the molecular characteristics and drug sensitivity profiles. Our organoid platform could be used as a testbed for patients with pleural and peritoneal metastases to guide precision oncology and drug discovery.
Citations
Citations to this article as recorded by
The use of patient-derived xenografts and patient-derived organoids in the search for new therapeutic regimens for pancreatic carcinoma. A review Emin Gayibov, Tomáš Sychra, Alžběta Spálenková, Pavel Souček, Martin Oliverius Biomedicine & Pharmacotherapy.2025; 182: 117750. CrossRef
Precision Medicine for Peritoneal Carcinomatosis—Current Advances in Organoid Drug Testing and Clinical Applicability Harleen Kaur, Josephine A. Wright, Daniel L. Worthley, Elizabeth Murphy, Susan L. Woods Organoids.2025; 4(1): 2. CrossRef
Three-dimensional models: from cell culture to Patient-Derived Organoid and its application to future liposarcoma research SAYUMI TAHARA, SYDNEY RENTSCH, FERNANDA COSTAS CASAL DE FARIA, PATRICIA SARCHET, ROMA KARNA, RAPHAEL E. POLLOCK, FEDERICA CALORE Oncology Research.2025; 33(1): 1. CrossRef
Applications and challenges of patient-derived organoids in hepatobiliary and pancreatic cancers Jia-Wei Hu, Yan-Zhi Pan, Xiao-Xiao Zhang, Jiang-Tao Li, Yun Jin World Journal of Gastroenterology.2025;[Epub] CrossRef
PRMT1 promotes pancreatic cancer development and resistance to chemotherapy Bomin Ku, David Eisenbarth, Seonguk Baek, Tae-Keun Jeong, Ju-Gyeong Kang, Daehee Hwang, Myung-Giun Noh, Chan Choi, Sungwoo Choi, Taejun Seol, Hail Kim, Yun-Hee Kim, Sang Myung Woo, Sun-Young Kong, Dae-Sik Lim Cell Reports Medicine.2024; 5(3): 101461. CrossRef
Establishment and Advancement of Pancreatic Organoids Dong Hyeon Lee Keimyung Medical Journal.2024; 43(1): 3. CrossRef
Organoid as a promising tool for primary liver cancer research: a comprehensive review Xuekai Hu, Jiayun Wei, Pinyan Liu, Qiuxia Zheng, Yue Zhang, Qichen Zhang, Jia Yao, Jingman Ni Cell & Bioscience.2024;[Epub] CrossRef
The use of organoids in creating immune microenvironments and treating gynecological tumors Ling-Feng Zhou, Hui-Yan Liao, Yang Han, Yang Zhao Journal of Translational Medicine.2024;[Epub] CrossRef
The pros and cons of mechanical dissociation and enzymatic digestion in patient-derived organoid cultures for solid tumor Jing Ren, Mengli Liu, Mingjie Rong, Xuan Zhang, Gang Wang, Yihan Liu, Haijun Li, Shichao Duan Cell Organoid.2024;[Epub] CrossRef
Organoid: Bridging the gap between basic research and clinical practice Guihu Weng, Jinxin Tao, Yueze Liu, Jiangdong Qiu, Dan Su, Ruobing Wang, Wenhao Luo, Taiping Zhang Cancer Letters.2023; 572: 216353. CrossRef
Purpose This study investigated pathological complete response (pCR) according to androgen receptor (AR) in breast cancer patients undergoing neoadjuvant chemotherapy and estimated the relationship between AR expression and clinicopathological factors.
Materials and Methods We identified 624 breast cancer patients who underwent surgery after neoadjuvant chemotherapy at the National Cancer Center in Goyang, Korea from April 2016 to October 2019. We retrospectively collected the clinicopathologic information and AR expression results and analyzed the data according to cancer stage, hormonal receptor (HR) status, human epidermal growth factor receptor 2 (HER2) status, tumor subtype, and pCR.
Results Among the 624 breast cancer patients, 529 (84.8%) were AR-positive (AR+) patients and 95 (15.2%) were AR-negative (AR–) patients. AR+ patients showed more estrogen receptor (ER) positivity, progesterone receptor (PR) positivity, HER2-positivity, and HR-positive and HER2-negative (HR+/HER2–) subtype. The rate of pCR was 31.4% (196/624). AR– patients had a significantly higher rate of pCR than AR+ patients (AR– 43.2% vs. AR+ 29.3%, p=0.007). The tumor factors associated with pCR were early stage, histologic grade 3, ER-negative, PR-negative, AR-negative, HER2-positive, and high Ki-67 values. In univariable analysis, AR+ significantly decreased the state of pCR (odds ratio, 0.546; 95% confidence interval, 0.349 to 0.853; p=0.008). According to tumor subtype, AR– tumor showed higher pCR rate in HR+/HER2– subtype (AR– 28.6% vs. AR+ 7.3%, p=0.022).
Conclusion AR expression is predominant in the HR+/HER2– subtype. AR– is significantly associated with the pCR rate in breast cancer patients, especially within HR+/HER2– subtype. When determining neoadjuvant chemotherapy for the HR+/HER2– subtype, AR expression can be considered as a pCR predictive marker.
Citations
Citations to this article as recorded by
The prevalence and clinical significance of residual occult breast cancer after neoadjuvant chemotherapy: reassessing surgical pathology in cases initially described as pathological complete response Di Ai, Eliel N Arrey, Lauren M Postlewait, Yuan Gao, Xiaoxian Li Histopathology.2025; 86(7): 1112. CrossRef
Androgen Receptor Positivity in Non-Metastatic Breast Cancer Patients and Its Prognostic Implications—A Retrospective Study Rexeena Bhargavan, Anitha Mathews, Lakshmi Subhadradevi, Jagathnath K. M. Krishna, Kurian Cherian, Paul Augustine Indian Journal of Surgical Oncology.2025;[Epub] CrossRef
Neo-adjuvant therapies for ER positive/HER2 negative breast cancers: from chemotherapy to hormonal therapy, CDK inhibitors, and beyond Athina Stravodimou, Ioannis A. Voutsadakis Expert Review of Anticancer Therapy.2024; 24(3-4): 117. CrossRef
Luminal androgen receptor subtype and tumor-infiltrating lymphocytes groups based on triple-negative breast cancer molecular subclassification Miseon Lee, Tae-Kyung Yoo, Byung Joo Chae, Ahwon Lee, Yoon Jin Cha, Jieun Lee, Sung Gwe Ahn, Jun Kang Scientific Reports.2024;[Epub] CrossRef
Evaluating the Clinico-Pathological Relationship Between Stromal Tumor-Infiltrating Lymphocytes and Androgen Receptor Expression Across Molecular Subtypes of Invasive Breast Carcinoma Adil Aziz Khan, Sana Ahuja, Kiruthikasri G., Sufian Zaheer Indian Journal of Surgical Oncology.2024; 15(4): 802. CrossRef
Biomarkers and translational research approaches in breast cancer—an update Angelika M. Starzer, Anna S. Berghoff, Rupert Bartsch memo - Magazine of European Medical Oncology.2023; 16(1): 42. CrossRef
Evaluation of predictive and prognostic value of androgen receptor expression in breast cancer subtypes treated with neoadjuvant chemotherapy Zhendong Shi, Yingxue Liu, Shichao Zhang, Shuanglong Cai, Xu Liu, Jie Meng, Jin Zhang Discover Oncology.2023;[Epub] CrossRef
Jieun Lee, Keun Seok Lee, Sung Hoon Sim, Heejung Chae, Joohyuk Sohn, Gun Min Kim, Kyung-Hee Lee, Su Hwan Kang, Kyung Hae Jung, Jae-ho Jeong, Jae Ho Byun, Su-Jin Koh, Kyoung Eun Lee, Seungtaek Lim, Hee Jun Kim, Hye Sung Won, Hyung Soon Park, Guk Jin Lee, Soojung Hong, Sun Kyung Baek, Soon Il Lee, Moon Young Choi, In Sook Woo
Cancer Res Treat. 2023;55(1):123-135. Published online March 24, 2022
Purpose The treatment of male breast cancer (MBC) has been extrapolated from female breast cancer (FBC) because of its rarity despite their different clinicopathologic characteristics. We aimed to investigate the distribution of intrinsic subtypes based on immunohistochemistry, their clinical impact, and treatment pattern in clinical practice through a multicenter study in Korea.
Materials and Methods We retrospectively analyzed clinical data of 248 MBC patients from 18 institutions across the country from January 1995 to July 2016.
Results The median age of MBC patients was 63 years (range, 25 to 102 years). Among 148 intrinsic subtype classified patients, 61 (41.2%), 44 (29.7%), 29 (19.5%), and 14 (9.5%) were luminal A, luminal B, human epidermal growth factor receptor 2, and triple-negative breast cancer, respectively. Luminal A subtype showed trends for superior survival compared to other subtypes. Most hormone receptor-positive patients (166 patients, 82.6%) received adjuvant endocrine treatment. Five-year completion of adjuvant endocrine treatment was associated with superior disease-free survival (DFS) in patients classified with an intrinsic subtype (hazard ratio [HR], 0.15; 95% confidence interval [CI], 0.04 to 0.49; p=0.002) and in all patients (HR, 0.16; 95% CI, 0.05 to 0.54; p=0.003).
Conclusion Distribution of subtypes of MBC was similar to FBC and luminal type A was most common. Overall survival tended to be improved for luminal A subtype, although there was no statistical significance. Completion of adjuvant endocrine treatment was associated with prolonged DFS in intrinsic subtype classified patients. MBC patients tended to receive less treatment. MBC patients should receive standard treatment according to guidelines as FBC patients.
Citations
Citations to this article as recorded by
HER2 expression and pathway status in male breast cancer patients: results of an integrated analysis among 6,150 patients Boqiang Lyu, Shidi Zhao, Hui Wang, Shouping Gong, Biyuan Wang Scientific Reports.2025;[Epub] CrossRef
Male breast cancer - a single center experience Igor Djurisic, Milan Zegarac, Milan Kocic, Vladimir Jokic, Nikola Vucic, Ognjen Petrovic, Nada Santrac, Jovana Koncar, Andjela Ivezic, Srdjan Nikolic Srpski arhiv za celokupno lekarstvo.2025; 153(1-2): 53. CrossRef
Clinicopathologic Features and Prognoses of Male Patients With Breast Cancer Meiling Huang, Jingjing Xiao, Changjiao Yan, Rui Ling, Ting Wang American Journal of Men's Health.2024;[Epub] CrossRef
Purpose For liposarcoma (LPS), clinical course and proper treatment strategies have not been well-established. Recently, immune-checkpoint inhibitors have shown potential efficacy in LPS. We aimed to describe the clinical course of LPS and evaluate the clinical impact of programmed death-ligand 1 (PD-L1).
Materials and Methods We reviewed all consecutive patients (n=332) who underwent curative-intent surgery for localized LPS at Asan Medical Center between 1989 and 2017. PD-L1 testing was performed in well-differentiated and dedifferentiated LPS.
Results The median age was 56 years with males comprising 60.8%. Abdomen-pelvis (47.6%) and well-differentiated (37.7%) were the most frequent primary site and histologic subtype, respectively. During a median follow-up of 81.2 months, recurrence was observed in 135 (40.7%), and 86.7% (117/135) were loco-regional. Well-differentiated subtype (hazard ratio [HR], 0.38), abdomen-pelvis origin (HR, 2.43), tumor size larger than 5 cm (HR, 1.83), positive resection margin (HR, 2.58), and postoperative radiotherapy (HR, 0.36) were significantly related with recurrence-free survival as well as visceral involvement (HR, 1.84) and multifocality (HR, 3.79) in abdomen-pelvis LPS. PD-L1 was positive in 31.5% (23/73) and 51.3% (39/76) of well-differentiated and dedifferentiated LPS, respectively, but had no impact on survival outcomes.
Conclusion Clinical course of LPS was heterogeneous according to histology and anatomic location. Clear resection margin was important to lower recurrence and postoperative radiotherapy might have additional benefit. A decent portion of well-differentiated and dedifferentiated LPS were positive for PD-L1, but its prognostic role was unclear. Further research is needed to determine clinical implications of PD-L1, especially for advanced-stage LPS with unmet needs for effective systemic treatment.
Citations
Citations to this article as recorded by
Recurrent Intrathoracic Liposarcoma: A Case Report and a Comprehensive Literature Review of a Rare Clinical Entity Vasileios Leivaditis , Manfred Dahm , Athanasios Papatriantafyllou, Hans-Georg Keul, Lydia Kohl, Hans-Joachim Schäfers Cureus.2024;[Epub] CrossRef
Clinicopathological Features of Intrathoracic Liposarcoma—A Systematic Review with an Illustrative Case Kajetan Kiełbowski, Nikola Ruszel, Seweryn Adam Skrzyniarz, Małgorzata Edyta Wojtyś, Rafał Becht, Konrad Ptaszyński, Darko Gajić, Janusz Wójcik Journal of Clinical Medicine.2022; 11(24): 7353. CrossRef
Purpose
This study aimed to evaluate the survivals of patients with metastatic or recurrent gastric cancer (MRGC) over a period of 16 years and to investigate the recent changes in chemotherapy patterns.
Materials and Methods
A total of 5,384 patients who received chemotherapy for MRGC between 2000 and 2015 were analyzed. The analysis focused on a comparison of the first-line chemotherapy between four periods: 2000–2003 (period 1), 2004–2007 (period 2), 2008–2011 (period 3), and 2012–2015 (period 4).
Results
There were 880 patients (16%) in period 1, 1,573 (29%) in period 2, 1,435 (27%) in period 3, and 1,496 (28%) in period 4. Cytotoxic doublet-based therapy was the most commonly used (78%) first-line chemotherapy, and the combination of trastuzumab and doublet chemotherapy was provided to 288 patients. The OS rates at 12 and 24 months were steadily improved as follows: 39.2% and 14.6% in period 1, 43.5% and 17.6% in period 2, 50.3% and 20.6% in period 3, and 51.7% and 24.1% in period 4, respectively (p < 0.001). Among the patients who received the doublet-based chemotherapy, the median OS of those who received trastuzumab was 18.0 months (95% CI, 15.5–20.6), while that of those who received other doublet therapies was 11.2 months (95% CI, 10.8–11.6).
Conclusion
The OS was improved over time with advancements in chemotherapy, particularly the introduction of the anti-HER2–targeted agent, which contributed to the increase in the number of long-term survivors and established the superiority of OS for the treatment of MRGC.
Citations
Citations to this article as recorded by
Treatment Modalities and Survival Outcomes in Gastric Cancer: Insights From Najran, Saudi Arabia Ahmed M Badheeb, Ibrahim A Alyami, Ahlam Y Alyami, Mohammed Alyami, Mugahed Al Walani, Samer Alkarak, Abdelaziz A Aman, Fahad M Albaiji, Ali G Al Masad, Abdullah S Alyami, Islam A Seada, Abdullah Abu Bakar Cureus.2025;[Epub] CrossRef
Treatment patterns and outcomes in advanced or metastatic gastric/gastroesophageal junction adenocarcinoma in China Jingdong Zhang, Guangyu Wang, Xianhe Xie, Wensheng Pan, Qian Dong, Nianhai Zhang, Jie Dong, Li Zhou, Chan Zhou, Jinnan Li, Grace Segall, Yanqiao Zhang Future Oncology.2025; 21(10): 1179. CrossRef
Factors associated with the efficacy of first-line nivolumab plus chemotherapy in advanced gastric cancer patients with deficient mismatch repair Young-Gyu Park, Hyung-Don Kim, Jaewon Hyung, Young Soo Park, Min-Hee Ryu Gastric Cancer.2024; 27(4): 840. CrossRef
Varlitinib and Paclitaxel for EGFR/HER2 Co-expressing Advanced Gastric Cancer: A Multicenter Phase Ib/II Study (K-MASTER-13) Dong-Hoe Koo, Minkyu Jung, Yeul Hong Kim, Hei-Cheul Jeung, Dae Young Zang, Woo Kyun Bae, Hyunki Kim, Hyo Song Kim, Choong-kun Lee, Woo Sun Kwon, Hyun Cheol Chung, Sun Young Rha Cancer Research and Treatment.2024; 56(4): 1136. CrossRef
Breakthroughs in the Systemic Treatment of HER2-Positive Advanced/Metastatic Gastric Cancer: From Singlet Chemotherapy to Triple Combination Sun Young Rha, Hyun Cheol Chung Journal of Gastric Cancer.2023;[Epub] CrossRef
Association between HER2 heterogeneity and clinical outcomes of HER2-positive gastric cancer patients treated with trastuzumab Kyunghye Bang, Jaekyung Cheon, Young Soo Park, Hyung-Don Kim, Min-Hee Ryu, Yangsoon Park, Meesun Moon, Hyungeun Lee, Yoon-Koo Kang Gastric Cancer.2022; 25(4): 794. CrossRef
Clinicopathological features and CT findings of papillary gastric adenocarcinoma Mengying Xu, Song Liu, Xiangmei Qiao, Lin Li, Changfeng Ji, Zhengyang Zhou Abdominal Radiology.2022; 47(11): 3698. CrossRef
New prognostic model for patients with advanced gastric cancer: Fluoropyrimidine/platinum doublet for first-line chemotherapy Dong-Hoe Koo, Min-Hee Ryu, Mi-Yeon Lee, Mee-Sun Moon, Yoon-Koo Kang World Journal of Gastroenterology.2021; 27(48): 8357. CrossRef