Cancer Research and Treatment

Ju Won Roh

5 Articles

A Case of Well-differentiated Papillary Mesothelioma Developing Malignant Mesothelioma with Seeding Mass on the Trocar Insertion Site of Diagnostic Laparoscopy and Malignant Change: Min Jung Kim, Eul Ju Moon, Yeon Jin Park, Ju Won Roh, Young Suk Park, So Yeon Park, Hee Sung Kim, Jung Suk Sim, Sang Yoon Park; Cancer Res Treat. 2001;33(4):357-361. Published online August 31, 2001; DOI: https://doi.org/10.4143/crt.2001.33.4.357

Although well-differentiated papillary mesothelioma (WDPM) is usually classified as benign, the natural history of this lesion has not been clearly established. We present a case of WDPM in 60-year old woman developing malignant mesothelioma with seeding mass on the trocar insertion site over a period of 2 years. The initial symptom exhibited by the patient was abdominal distension from massive ascitic fluid. With an impression of peritoneal carcinomatosis, we performed a diagnostic laparoscopy. On the laparoscopic finding, a small whitish nodule was found on the liver surface and the pathologic result revealed reactive mesothelial hyperplasia. At exploro-laparotomy, multiple small nodules were found on the omentum and a biopsy revealed well-differentiated papillary mesothelioma of the peritoneum. The patient underwent pelvic lymphadenectomy and omentectomy of the colon and was followed for 2 years without any further treatment. Subsequently, she presented with abdominal distention with massive ascites and palpable abdominal wall mass at the previous trocar insertion site. Malignant mesothelioma was confirmed histologically via re- exploration. The rare transformation of well-differentiated papillary mesothelioma into a typically malignant diffuse mesothelioma and the unusual seeding on trocar insertion site prompted us to report this case.

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Well-differentiated papillary mesothelioma: A 17-year single institution experience with a series of 75 cases
Meng Sun, Lu Zhao, I Weng Lao, Lin Yu, Jian Wang
Annals of Diagnostic Pathology.2019; 38: 43. CrossRef

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p53 Codon 72 Polymorphism and Cervical Adenocarcinoma Risk in Korean Women: Jeong Hwa Kim, Ju Won Roh, Kyung Sun Kim, Hyeon Jung Jung, Jae Weon Kim, Noh Hyun Park, Yong Sang Song, Soon Beom Kang, Hyo Pyo Lee; Cancer Res Treat. 2001;33(3):243-249. Published online June 30, 2001; DOI: https://doi.org/10.4143/crt.2001.33.3.243

Abstract PDF: PURPOSE
This study was undertaken to analyze whether the p53 codon 72 single nucleotide polymorphism might be correlated with the risk and/or the prognosis of cervical cancer in Korean women.
MATERIALS AND METHODS
Peripheral blood samples derived from patients with cervical squamous cell carcinoma (SCC) (n=68), cervical adenocarcinoma (n=37), cervical intraepithelial neoplasia (CIN) III (n=98) and normal controls (n=98) were examined. Germline genomic DNA was extracted from peripheral blood leukocytes and examined by PCR amplification of the specific alleles assay described by Storey et al.5 Statistical analysis was performed using the Chi-Square test or the Kaplan-Meier survival analysis, logistic regression analysis.
RESULTS
The proportions of individuals who were homozygous for the proline allele, and heterozygous for the two allele, homozygous for arginine allele in each group were 15%, 47%, 38% in the SCC group; 6%, 7%, 24% in the adenocarcinoma group; 7%, 33%, 60% in the CIN III group; and 11%, 38%, 51% in the control group. No significant difference was found between the three groups (p>0.05). However there was a significant difference in the adenocarcinoma group (p<0.05). Arg/Arg homozygote reduced the risk of adenocarcinoma. No significant difference existed in 5-year survival rates in the three groups (p=0.22 in SCC, p=0.91 in adenocarcinoma).
CONCLUSION
These findings suggest that Arg/Arg homozygocity of the p53 codon 72 would be a protective factor against the development of cervical adenocarcinoma.

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p21WAF1/CIP1 Codon 31 Polymorphism in Korean Women: Association with Cervical Cancer Susceptibility and Prognosis: Ju Won Roh, Kyung Sun Kim, Jae Weon Kim, Moon Hong Kim, Hyun Hoon Chung, Noh Hyun Park, Yong Sang Song, Soon Beom Kang, Hyo Pyo Lee; J Korean Cancer Assoc. 2000;32(6):1050-1058.

Abstract PDF: PURPOSE
The aim of this study was to determine whether certain genotype of p21WAF1/Cip1 might be associated with risk of cervical cancer in Korean women.
MATERIALS AND METHODS
We used the specimens derived from cervical cancer (n=111) composed of two histologic groups; SCCA (n=67) and adenocarcinoma (n=44), CIN III (n=101) and controls (n=98). For the determination of p21WAF1/Cip1 polymorphism, DNA was examined by PCR-RFLP using BsmAI. We compared the distribution of p21WAF1/Cip1 genotype of Korean women with that of other ethnic groups and analyzed the distribution of invasive cancer, CIN III and controls.
RESULTS
The genotype frequency of controls was different from that of Caucasian and Chinese (p<0.001) but similar to that of Japanese (p=0.21). There was no difference in the genotype frequency of p21WAF1/Cip1 among SCCA, CIN III and controls (p>0.05). A significant increase of Ser/Ser genotype was found in adenocarcinoma patients with high-risk HPV compared with the controls (p=0.009). The OR was 3.59, 95% CI=1.55~8.31, when comparing that group with controls. However, we could not find differences of prognosis.
CONCLUSION
We found that codon 31 Ser/Ser homozygote of the p21WAF1/Cip1 would be a risk factor for the adenocarcinoma of cervix associated with high-risk HPV in Korean women.

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Polymorphisms in E6 Gene of Human Papillomavirus Type 16 Found in Cervical Tissues from Korean Women: Jae Weon Kim, Ju Won Roh, Moon Hong Kim, Noh Hyun Park, Yong Sang Song, Soon Beom Kang, Hyo Pyo Lee; J Korean Cancer Assoc. 2000;32(5):875-883.

Abstract PDF: PURPOSE
To examine the distribution of HPV 16 E6 polymorphisms and analyse the possible association between the polymorphisms and cervical cancer development in Korean women.
MATERIALS AND METHODS
Fifty-four cases of uterine cervical tissues containing HPV 16 DNA confirmed by polymerase chain reaction (PCR) from Korean women were subjected to investigate the E6 gene mutations. PCR-amplified products were sequenced by the fluorescent dideoxy ter mination method and the results obtained from sequencing were analysed. And newly designed PASA method was tried to develop rapid test for identification of the most commonly detected variation.
RESULTS
Among the 27 cervical cancer cases, only two (7.4%) was found as a prototype. Among 11 kind of variants identified in total, 4 variants (5 nucleotide sites) which were never reported before has been found, registered firstly to GenBank. The most frequently found variation was D25E, absolutely different from the previous reports from the western country. There was no statistically significant trend for the D25E variation to be more frequently detected in cancerous lesions than in noncancerous lesions. All of the DNA sequencing results observed could be confirmed by PASA method.
CONCLUSION
These results suggest that Korean-specific genetic factors might operate during the cervical carcinogenesis.

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p53 and bcl-2 Gene Expression in Gastational Trophoblastic Disease: Noh Hyun Park, Ju Won Roh, Jae Weom Kim, Yong Sang Song, In Ae Park, Soon Beom Kang, Hyo Pyo Lee; J Korean Cancer Assoc. 1999;31(3):582-589.

Abstract PDF: PURPOSE
p53 and bcl-2 expressions are known as important cell survival factors and their levels of expression are related with patients prognosis in various human malignancies. But there are few data about p53 and bcl-2 expression and their role in the genesis of gestational trophoblastic disease (GTD). The aims of this study are to describe p53 and bcl-2 expression in normal trophoblast and hydatidifonn mole (HM), and to identify the role of p53 and bcl-2 in the genesis of gestational trophoblastic tumor (GlTI from HM.
MATERIALS AND METHODS
Paraffin-embedded tissue sections from 32 cases of HM and 9 cases of normal early pregnancy placentas were obtained. Of 32 HM patients, 15 cases were cured after molar evacuation (group A), and 17 cases progressed to GT1' (group B). p53 and bcl-2 immunohistochemical stainings were done and their reactivity were graded. The positive rates of p53 and bcl-2 overexpression among normal placenta, group A, and group B were compared and analyzed.
RESULTS
p53 mutant gene overexpression was more frequently detected in HM (68%) than in normal placentas (22%)(p<0.05). bcl-2 was overexpressed in 31% of HM and 11% of normal placenta, but the difference was statistically insignificant (P > 0.05). The difference in bcl-2 and p53 expression between group A and group B was not observed (P>0.05). There was no inverse relationship between p53 and bcl-2 expression in group A, and group B (P>0.05).
CONCLUSIONS
p53 gene mutation may play a mle in the process of HM development, but p53 and bcl-2 were not associated with the genesis of GTI' from H-mole. More studies are needed to identify the molecular process in the progression of the GTD.

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