1.Identification of Target Genes in the Endometrial Carcinomas with Microsatellite Mutator Phenotype.
Kwon Tae YOU ; Hoguen KIM ; Tchan Kyu PARK ; In Sook SOHN ; Ji Young LEE ; Dong Wook JANG ; Won Gyu YANG ; Soo Nyung KIM
Korean Journal of Obstetrics and Gynecology 2005;48(5):1229-1240
OBJECTIVE: Recent molecular genetic studies have revealed that two major types of genomic instabilities, chromosomal instability and microsatellite instability (MSI), exist in the endometrial carcinomas. Tumors with microsatellite mutator phenotype (MMP) are caused by defects in DNA mismatch repair genes. MMP tumors are believed to progress by accumulating frameshift mutations in coding microsatellite sequences of various cancer related genes including tumor suppressor genes, apoptosis related genes and DNA repair genes. Thus, the identification of the specific target genes in the MMP endometrial carcinomas is important for the elucidation of molecular pathogenesis of endometrial carcinomas. METHODS: We classified the MMP endometrial carcinomas and evaluated the frameshift mutations of the 11 genes containing coding microsatellite sequences by using 34 endometrial carcinomas and 4 MMP endometrial carcinoma cell lines. RESULTS: MSI was found in 6 of 34 endometrial carcinomas. In the endometrial carcinoma tissues, frequent mutations were found in TAF1B (68%), HT001 (50%), SLC23A1 (50%) and ACVR II (50%) in the MMP endometrial carcinoma tissues. The other 7 genes were infrequently mutated. Mutations of these target genes were more frequent in MMP endometrial carcinoma cell lines. CONCLUSION: we identified specific target genes in MMP endometrial carcinomas. These data demonstrate the mechanism of tumor progression in the MMP endometrial carcinomas.
Apoptosis
;
Cell Line
;
Chromosomal Instability
;
Clinical Coding
;
DNA Mismatch Repair
;
DNA Repair
;
Endometrial Neoplasms*
;
Female
;
Frameshift Mutation
;
Genes, Tumor Suppressor
;
Genomic Instability
;
Microsatellite Instability
;
Microsatellite Repeats*
;
Molecular Biology
;
Phenotype*
2.A Case of Metastasis to Lung of Benign Metastasizing Leiomyoma.
Won Ki HONG ; Tchan Kyu PARK ; Jae Wook KIM ; Young Tae KIM ; Jae Hoon KIM ; Jong Hwan ROH ; Nam Hoon CHO ; Soo Hyeon PARK ; Sung Hoon KIM
Korean Journal of Obstetrics and Gynecology 2004;47(10):2006-2010
Leiomyoma of the uterus is the most common benign uterine tumor affecting 40-50% of women older than 40 years of age. The pathogenesis of uterine leiomyoma is unknown, but several studies have suggested that each leiomyoma arises from a single neoplastic cell within the smooth muscle of the myometrium. Uterine leiomyoma can be extended outside the uterus growing into the pelvic veins, and in exceptional cases, even into the lung. Even if this was first reported more than 90 years ago, the pathogenesis and treatment of benign metastasizing leiomyoma was not still established. We experienced a case of benign metastasizing leiomyoma and report with a brief review of literature.
Animals
;
Female
;
Humans
;
Leiomyoma*
;
Lung*
;
Mice
;
Muscle, Smooth
;
Myometrium
;
Neoplasm Metastasis*
;
Uterus
;
Veins
3.Colposcopy Directed Cone Biopsy and Endocervical Curettage as Management of Carcinoma in Situ of the Uterine Cervix.
Yong Wook JUNG ; Jung Mi CHO ; Ja Young KWON ; Sung Hoon KIM ; Tchan Kyu PARK
Korean Journal of Obstetrics and Gynecology 2004;47(5):849-855
OBJECTIVE: The goal of this study was to evaluate the prognostic factors in relation with residual cervical intraepithelial neoplasia (CIN) in hysterectomized specimen of the patients diagnosed as carcinoma in situ of the uterine cervix (CIS) and underwent cone knife biopsies first. Also we investigated if colposcopically directed wide cone knife biopsy with endocervical curettage followed by electrocauterization could substitute for traditional hysterectomy as a conservative management of CIS. METHODS: Data were collected retrospectively from 169 patients who were diagnosed as CIS after colposcopy directed conization in Yonsei University Hospital from Jan 1997 to Dec 2001. The patients were divided into two groups, those who underwent colposcopically directed cone biopsy only (Group A) and those who received colposcopically directed cone biopsy and extrafascial abdominal hysterectomy (Group B). Pap smear, pelvic examination and punch biopsy of the uterine cervix according to symptoms and physical findings of the patients were performed for follow-up. Patient characteristics, histologic results and follow-up outcomes were compared using student t-test, x2 test, and logistic regression analysis. RESULTS: Among 169 patients, 82 (study group) received no further treatment while 87 (control group) were hysterectomized. 58 of control group showed residual CIN in colposcopically directed cone biopsy and 12 from these patients, residual CIN were found in hysterectomized specimen. Positive endocervical margin on conization was found as a significant predictor for residual disease after conization. Abnormal Pap smear results were reported in 10 patients of study group only, of whom 2 cases of CIN I, 8 cases cervicitis. CONCLUSION: The residual CIN in endocervical margin can predict whether hysterectomized specimen might contain residual CIN and no difference in life threatening prognosis existed between the patients received colposcopically directed cone biopsy only and hysteretomy, regardless of the residual CIN in cone biopsy margin. Based on these results, it is reasonable to choose expectant management over hysterectomy for treating CIS patients with marginal involvement.
Biopsy*
;
Carcinoma in Situ*
;
Cervical Intraepithelial Neoplasia
;
Cervix Uteri*
;
Colposcopy*
;
Conization
;
Curettage*
;
Female
;
Follow-Up Studies
;
Gynecological Examination
;
Humans
;
Hysterectomy
;
Logistic Models
;
Prognosis
;
Retrospective Studies
;
Uterine Cervicitis
4.Adjuvant therapy in invasive cervical cancer patients with histopathologic high risk factors following pretreatment laparotomy.
Ja Young KWON ; Hyoung Jin MO ; Sang Wun KIM ; Sung Hoon KIM ; Soo Nyung KIM ; Tchan Kyu PARK
Korean Journal of Obstetrics and Gynecology 2002;45(9):1516-1523
OBJECTIVE: To evaluate the efficacy of postoperative adjuvant therapy was evaluated in preventing treatment failure occurring after primary treatment with surgery in early invasive cervical cancer patients associated with histopathologic high risk factors such as lymph node metastasis, either macroscopic or microscopic, parametrial extension, lymphovascular permeation and depth of invasion >or=10 mm. METHODS: Postoperative adjuvant concurrent chemoradiotherapy (PCCRT), postoperative adjuvant chemotherapy (PCT) or postoperative adjuvant radiotherapy (PRT) alone was administered to the 80 early invasive cervical cancers with at least one of the high risk factors. Each of 61 patients was received three to six cycles of chemotherapy at about 3-weeks intervals. For squamous cell carcinoma, cisplatin 100 mg/m2 IV, or paraplatin 350 mg/m2 IV was infused followed by 5-FU 1000 mg/m2 IV infusion for 5 days. Twenty three patients were treated with PCCRT, 38 patients were treated with PCT alone. And 19 patients received PRT. RESULTS: The five-year survival rate of patients with macroscopic metastasis was 66.7% and 35.7%, in PCCRT and PRT, respectively. With microscopic lymph node metastasis, the 5-year survival rate was 83.3%, 60.0%, and 70.1% in PCCRT, PCT and PRT, respectively. With parametrial extension, the 5-year survival rate was 58.1% in PCCRT. The five-year survival rate of patients with lymphovascular permeation was 100%, 90.9% and 66.7% in PCCRT, PCT and PRT, respectively. With depth of invasion >or=10 mm, the 5-year survival rate was 100% and 91.3%, in PCCRT and PCT, respectively. CONCLUSION: PCCRT appears to be superior to PRT or PCT alone in early invasive cervical cancer patients with histopathologic high risk factors.
Carboplatin
;
Carcinoma, Squamous Cell
;
Chemoradiotherapy
;
Chemotherapy, Adjuvant
;
Cisplatin
;
Drug Therapy
;
Fluorouracil
;
Humans
;
Laparotomy*
;
Lymph Nodes
;
Neoplasm Metastasis
;
Radiotherapy, Adjuvant
;
Risk Factors*
;
Survival Rate
;
Treatment Failure
;
Uterine Cervical Neoplasms*
5.Results of Definitive Radiation Therapy in Adenosquamous Cell Carcinoma of the Uterine Cervix.
Sang Wook LEE ; Chang Ok SUH ; Eun Ji CHUNG ; Gwi Eon KIM ; Kyung Ran PARK ; Kang Kyoo LEE ; Ik Jae LEE ; Tchan Kyu PARK ; Jaewook KIM ; Jong Taek PARK ; Jae Uk SHIM ; Joon Oh PARK
Journal of the Korean Cancer Association 2001;33(1):21-26
PURPOSE: To define the clinical features and pattern of failure and to evaluate the results of radiation treatment in of adenosquamous cell carcinoma of the uterine cervix. MATERIALS AND METHODS: From Jun. 1981 to Dec. 1997, 43 patients with adenosquamous cell carcinoma of the uterine cervix were retrospectively analyzed external radiation treatment and HDR-ICR from Yonsei cancer center and Wonju cristian hospital. The median age was 51. Stage distribution according to FIGO were stage 1b in 10, 2a in 5, 2b in 18, 3b in 9, 4a in 1. Median follow-up period was 41 months. RESULTS: Overall survival rate and disease free survival rate were 57.2% and 60.2%. Complete response rate was 86.0%. Locoregional failure was observed in seven patients. CONCLUSION: Major pattern of failure was locoregional failure. Adenosquamous cell carcinoma was not more aggressive than other pathologic types.
Cervix Uteri*
;
Disease-Free Survival
;
Female
;
Follow-Up Studies
;
Gangwon-do
;
Humans
;
Retrospective Studies
;
Survival Rate
;
Uterine Cervical Neoplasms
6.Concurrent chemotherapy and radiotherapy in invasive cervical cancer patients with high risk factors.
Tchan Kyu PARK ; Soo Nyung KIM ; Sang Wun KIM ; Gwi Eon KIM ; Chang Ok SUH
Journal of Korean Medical Science 2000;15(4):436-441
The aim of this study was to evaluate the survival of 395 previously untreated cervical cancer patients with at least one high risk factor following concurrent chemoradiation and to assess the toxicities. Two different chemotherapy regimens were used for concurrent chemoradiation. In the patients with squamous cell carcinoma, 100 mg/m2 of cisplatin was infused intravenously, followed immediately by five consecutive daily administrations of 5-fluorouracil, 1,000 mg/m2/day, each infused intravenously over 24 hr. As for the patients with adenocarcinoma, 70 mg/m2 of cisplatin, 250 mg/m2 of cytoxan and 45 mg/m2 of adriamycin were administered intravenously on days 1, 2, and 3, respectively. The 5-year survival rate was 54.4+ACU- with stage III and IV, 62.6+ACU- with lymph node metastasis on computed tomogram or MRI, 77.9+ACU- with stage I-II disease with lesion size +AD4- or +AD0-4 cm, and 50.3+ACU- with small cell carcinoma or adenocarcinoma. Side effects from concurrent chemoradiation such as nausea, vomiting, and alopecia were present in all 395 cases. Anemia, leukopenia, thrombocytopenia, hepatotoxicity, and nephrotoxicity were observed to varying degrees, but there was no toxic death. This study suggests that cisplatin-based concurrent chemoradiation in treating cervical cancer patients with high risk factors is effective and relatively well tolerated, with acceptable toxicity.
Adenocarcinoma/radiotherapy
;
Adenocarcinoma/mortality
;
Adenocarcinoma/drug therapy
;
Adult
;
Aged
;
Antineoplastic Agents, Combined/therapeutic use+ACo-
;
Antineoplastic Agents, Combined/adverse effects
;
Carboplatin/administration +ACY- dosage
;
Carcinoma, Squamous Cell/radiotherapy
;
Carcinoma, Squamous Cell/mortality
;
Carcinoma, Squamous Cell/drug therapy
;
Cervix Neoplasms/radiotherapy+ACo-
;
Cervix Neoplasms/mortality
;
Cervix Neoplasms/drug therapy
;
Chemotherapy, Adjuvant/adverse effects
;
Cisplatin/administration +ACY- dosage
;
Combined Modality Therapy
;
Comparative Study
;
Cyclophosphamide/administration +ACY- dosage
;
Doxorubicin/administration +ACY- dosage
;
Female
;
Fluorouracil/administration +ACY- dosage
;
Gastrointestinal Diseases/etiology
;
Gastrointestinal Diseases/epidemiology
;
Hematologic Diseases/etiology
;
Hematologic Diseases/epidemiology
;
Hepatitis, Toxic/etiology
;
Hepatitis, Toxic/epidemiology
;
Human
;
Kidney Diseases/epidemiology
;
Kidney Diseases/chemically induced
;
Korea/epidemiology
;
Life Tables
;
Lymphatic Metastasis
;
Middle Age
;
Particle Accelerators
;
Radiotherapy, High-Energy+ACo-/adverse effects
;
Retrospective Studies
;
Risk
;
Survival Analysis
;
Treatment Outcome
7.Concurrent chemotherapy and radiotherapy in invasive cervical cancer patients with high risk factors.
Tchan Kyu PARK ; Soo Nyung KIM ; Sang Wun KIM ; Gwi Eon KIM ; Chang Ok SUH
Journal of Korean Medical Science 2000;15(4):436-441
The aim of this study was to evaluate the survival of 395 previously untreated cervical cancer patients with at least one high risk factor following concurrent chemoradiation and to assess the toxicities. Two different chemotherapy regimens were used for concurrent chemoradiation. In the patients with squamous cell carcinoma, 100 mg/m2 of cisplatin was infused intravenously, followed immediately by five consecutive daily administrations of 5-fluorouracil, 1,000 mg/m2/day, each infused intravenously over 24 hr. As for the patients with adenocarcinoma, 70 mg/m2 of cisplatin, 250 mg/m2 of cytoxan and 45 mg/m2 of adriamycin were administered intravenously on days 1, 2, and 3, respectively. The 5-year survival rate was 54.4+ACU- with stage III and IV, 62.6+ACU- with lymph node metastasis on computed tomogram or MRI, 77.9+ACU- with stage I-II disease with lesion size +AD4- or +AD0-4 cm, and 50.3+ACU- with small cell carcinoma or adenocarcinoma. Side effects from concurrent chemoradiation such as nausea, vomiting, and alopecia were present in all 395 cases. Anemia, leukopenia, thrombocytopenia, hepatotoxicity, and nephrotoxicity were observed to varying degrees, but there was no toxic death. This study suggests that cisplatin-based concurrent chemoradiation in treating cervical cancer patients with high risk factors is effective and relatively well tolerated, with acceptable toxicity.
Adenocarcinoma/radiotherapy
;
Adenocarcinoma/mortality
;
Adenocarcinoma/drug therapy
;
Adult
;
Aged
;
Antineoplastic Agents, Combined/therapeutic use+ACo-
;
Antineoplastic Agents, Combined/adverse effects
;
Carboplatin/administration +ACY- dosage
;
Carcinoma, Squamous Cell/radiotherapy
;
Carcinoma, Squamous Cell/mortality
;
Carcinoma, Squamous Cell/drug therapy
;
Cervix Neoplasms/radiotherapy+ACo-
;
Cervix Neoplasms/mortality
;
Cervix Neoplasms/drug therapy
;
Chemotherapy, Adjuvant/adverse effects
;
Cisplatin/administration +ACY- dosage
;
Combined Modality Therapy
;
Comparative Study
;
Cyclophosphamide/administration +ACY- dosage
;
Doxorubicin/administration +ACY- dosage
;
Female
;
Fluorouracil/administration +ACY- dosage
;
Gastrointestinal Diseases/etiology
;
Gastrointestinal Diseases/epidemiology
;
Hematologic Diseases/etiology
;
Hematologic Diseases/epidemiology
;
Hepatitis, Toxic/etiology
;
Hepatitis, Toxic/epidemiology
;
Human
;
Kidney Diseases/epidemiology
;
Kidney Diseases/chemically induced
;
Korea/epidemiology
;
Life Tables
;
Lymphatic Metastasis
;
Middle Age
;
Particle Accelerators
;
Radiotherapy, High-Energy+ACo-/adverse effects
;
Retrospective Studies
;
Risk
;
Survival Analysis
;
Treatment Outcome
8.Analysis of Tumor Angiogenesis in Invasive Cervical Cancer.
Tchan Kyu PARK ; Sung Ki LEE ; In Sook SOHN ; Soo Nyung KIM ; Young Moon KIM ; Ho Guen KIM
Korean Journal of Obstetrics and Gynecology 1999;42(3):556-560
OBJECTIVE: Tumor angiogenesis is believed to conelate with tumor growth, progression and metastasis. Studies of angiogenesis in breast, prostate and melanoma have shown that angiogenesis, the induction of new capillaries and venules, is associated with tumor metastases and recurrences. The purpose of this study was to investigate the angiogenesis as a prognostic factor in invasive cervical cancer. METHODS: Forty-three formalin fixed embedded blocks of invasive cervical cancers were examined using immunohistochemical staining with a monoclonal antibody against factor VIII-related antigen. RESULTS: The miaovessel counts were 53.50+/-20,07 in patients with lymph node metastasis, and 45.97+/-28.12 in those without such metastasis. There was a trend for the microvessel count to increase with lymph node metastasis. However, thae was no significant difference in microvessel counts regarding node status. There was no significant difference between microvessel counts in patients with stage I(47.90+/-25.89) and those with stage Il(45.50+/-29.27), The microvessel counts in squamous cell carcinoma(46.54+/-27.79) were not significantly different from those in adenocarcinoma(47,50+/-27.05), The microvessel count in patients with tumor size >-4 cm(53.00+/-21.17) was not significantly higher than in those with tumar size <4 cm(46.20+/-27.94). CONCLUSION: There was no significant correlation between microvessel counts and clinical stage of disease, pathological type, tumor size or lymph node metastasis in patients with invasive cervical cancer. There was a trend for the microvessel count to increase with lymph node etastasis.
Breast
;
Capillaries
;
Formaldehyde
;
Humans
;
Lymph Nodes
;
Melanoma
;
Microvessels
;
Neoplasm Metastasis
;
Prostate
;
Recurrence
;
Uterine Cervical Neoplasms*
;
Venules
;
von Willebrand Factor
9.Two Cases of Surgical Intervention in Persistent Localized Choriocarcinoma.
Seong Eun KANG ; Hye Kyung KWON ; Nack Keun KIM ; Dong Hyun KIM ; Tchan Kyu PARK
Korean Journal of Obstetrics and Gynecology 1998;41(11):2864-2869
Gestational trophoblastic tumors including choriocarcinoma bave become one of the most curable human malignancies with an overall cure rate exceeding 90%. Although systemic chemotherapy is the initial treatment for chorio- carcinoma, some patients with chemotherapy-resistant choriocarcinorna can be treated by integration of cbemotherapy, surgery and radio- therapy. We report two cases of persistent localized choriocarcinoma which was treated by surgical intervention.
Choriocarcinoma*
;
Drug Therapy
;
Female
;
Humans
;
Neoplasm Metastasis
;
Pregnancy
;
Trophoblastic Neoplasms
10.Cervical Cytology: A Randomized Comparison of False-Negative Rate in Three Sampling Methods.
Seung Ryong KANG ; Tchan Kyu PARK ; Jung Pil LEE ; Jung Yeon KIM ; Jong Gun WON ; Soo Nyung KIM
Korean Journal of Obstetrics and Gynecology 1997;40(12):2747-2754
No abstract available.

Result Analysis
Print
Save
E-mail