1.Chromosome analysis from chorionic villi samples in recurrent spontaneous abortion.
Korean Journal of Perinatology 1992;3(2):35-41
No abstract available.
Abortion, Spontaneous*
;
Chorion*
;
Chorionic Villi*
;
Female
;
Humans
;
Pregnancy
3.Ultrastructural immunocytochemistry on the pancreatic endocrine cells of the human fetus.
Sung Sik PARK ; byoung Hae MOON
Korean Journal of Anatomy 1993;26(2):142-154
No abstract available.
Endocrine Cells*
;
Fetus*
;
Humans*
;
Immunohistochemistry*
5.The expression and tyrosine phosphorylation of E-cadherin, beta-, gamma-catenin and EGFR after treatment of EGF and TGF-alpha in Cervical Cancer Cell Lines.
Hye Sung MOON ; Eun Ah CHOI ; Hye Young PARK
Korean Journal of Gynecologic Oncology and Colposcopy 2000;11(1):13-23
OBJECTIVES: Cadherin/catenin adhesion complex is fundamentally involved in epithelial cancer invasion and metastasis. E-cadherin and EGFR colocalize on the basolateral membrane of epithelial cell and EGF down-regulate E-cadherin expression. In the invasion and metastasis of cancer, E-cadherin expression is decreased and growth factors receptor is overexpressed. The present study was aimed to find the role of E-cadherin, beta-and gamma-catenin, growth factors and its receptors in cervical cancer cell lines. METHODS: The cervical cancer cell cultures were treated with different time duration of EGF 30 ng/ml and TGF-a 10 ng/ml(0, 10 min, 20 min, 30 min, 1 hr, 2 hr, 4 hr, 8 hr, 24 hr). The change in cancer cell morphology and the changes in E-cadherin, beta- and gamma-catenin, EGFR and activated EGFR expression were studied with a western blot analysis and an immunoprecipitation. RESULTS: Through a western blot analysis, E-cadherin 120 kDa band and EGFR 170 kDa band were expressed in CaSki, HT-3 and ME-180 cell line, which showed epithelial contact growth. 1n these 3 cell lines, expression of E-cadherin did not decrease with time dependent manner. after the treatment of EGF and TGF- alpha. The expression of EGFR decreased and activated EGFR expression increased in 30 minutes to 1 hour but decreased subsequently. When the cells treated with EGF, there were no change in beta-and gamma-catenin expression with there dependent manner. The tyrosine phosphorylation of beta-and gamma-catenin increased in 30 minutes to 1 hour but decreased subsequently with activated EGFR. CONCLUSION: This study showed that an activated EGFR which has involved with tyrosine phosphorylation of beta- and gamma-catenin influenced by growth factors rather than expression of E-cadherin, has a role in the invasion and metastasis of the cervical cancer.
Blotting, Western
;
Cadherins*
;
Cell Culture Techniques
;
Cell Line*
;
Epidermal Growth Factor*
;
Epithelial Cells
;
gamma Catenin*
;
Immunoprecipitation
;
Intercellular Signaling Peptides and Proteins
;
Membranes
;
Neoplasm Metastasis
;
Phosphorylation*
;
Transforming Growth Factor alpha*
;
Tyrosine*
;
Uterine Cervical Neoplasms*
6.Cytogenetic study of recurrent spontaneous abortion.
Sung Ro CHUNG ; Moon Il PARK ; Myung Soo LYU
Korean Journal of Perinatology 1992;3(1):79-87
No abstract available.
Abortion, Spontaneous*
;
Cytogenetics*
;
Female
;
Humans
;
Pregnancy
7.Trichorrhexis Nodosa: report of a case and Scanning Electron Microscopic Findings.
Yoon Kee PARK ; Byoung Moon CHOI ; Sung Nack LEE
Korean Journal of Dermatology 1982;20(3):473-477
Trichorrhexis nodosa is a distinctive response of the hair shaft to physical or chemical trauma, characterized by the development of node-like swelling, through which the shaft readily fractures. We have described here a case of trichorrhexis nodosa with scanning electron microscopic findings. Nodular swelling of the affected hair showed longitudinal fissures and fractures in the cortex with loss of cuticular scales. At the site of fracture, a paintbrush-like effect was seen.
Hair
;
Weights and Measures
8.Posttraumatic stress disorder and thyroid function.
Sung Deok PARK ; Moon Yong CHUNG ; Young Ki CHUNG
Journal of Korean Neuropsychiatric Association 1992;31(1):68-74
No abstract available.
Stress Disorders, Post-Traumatic*
;
Thyroid Gland*
9.The Clinical Significance of Squamous Cell Carcinoma Antigen as a Predictor of Nodal Metastasis in Early Stage Cervical Carcinoma.
Soo Mee PARK ; Hye Sung MOON ; Seung Cheol KIM
Korean Journal of Obstetrics and Gynecology 2000;43(3):380-385
OBJECTIVE: SCC-Ag(Squamous Cell Carcinoma Antigen) is a tumor marker for patients with squamous cell carcinoma of the uterine cervix. It has shown that the SCC-Ag was well related with the response of cancer therapy and course of cervical cancer. The aim of this study is to investigate whether the presence of pelvic lymph node metstasis can be predicted by the measurement of the preoperative SCC-Ag levels in the patients with early staged squamous cell carcinoma of cervix. METHODS: The preoperative serum SCC-Ag levels were measured in 45 patients with stage I-II squamous cell carcinoma of cervix undergoing radical hysterectomy from September 1995 to December 1997. The serum SCC-Ag levels were analyzed for the clinicopathologic characteristics and other prognostic factors using univariate and multivariate analysis. RESULTS: The serum SCC-Ag levels of the patients exhibited pelvic lymph node metastasis were above 4.8ng/ml. An elevated preoperative serum SCC-Ag level, and tumor size were independent predictors for the presence of lymph node metastasis(p<0.01). CONCLUSION: The determination of the preoperative serum SCC-Ag levels provides a new prognostic factor in early staged cervical cancer.
Carcinoma, Squamous Cell*
;
Cervix Uteri
;
Female
;
Humans
;
Hysterectomy
;
Lymph Nodes
;
Multivariate Analysis
;
Neoplasm Metastasis*
;
Uterine Cervical Neoplasms
10.The Midkine mRNA Expression in Invasive Cervical Cancer.
Hye Sung MOON ; Han Moie PARK ; Hye Won CHUNG
Korean Journal of Gynecologic Oncology and Colposcopy 2000;11(2):123-130
OBJECTIVE: Some growth factors may promote tumor growth by affecting tumor angiogenesis. Midkine(MK) are polypeptides that belong to a new family of heparin-binding growth/differentiation factor and has also been reported to be angiogenic. In various tumor tissues, MK was highly expressed between tumor and normal tissues; however, the pattern of MK expression in normal cervix and cervical cancer has not been established. The aim of this study was to determine the MK mRNA expression in cervical cancer. And we questioned whether its expression is related to cancer stages and prognostic factors. METHODS: The cervical and cervical cancer tissues were taken from patients; healthy women(n=15), and the patients with cervical cancer(n=29). The MK mRNA expression was examined by quantative competitive PCR after polymerase chain reaction amplification of reverse transcriptase copies of RNA transcripts(RT-PCR). RESULTS: The cervical cancer expressed higher levels of MK mRNA than normal cervix(p<0.05). The MK mRNA expression was not correlated with the cervical cancer stage and histopathologic type(p>0.05). CONCLUSION: These results suggested that increased MK mRNA expression is associated with the development of cervical cancer.
Cervix Uteri
;
Female
;
Humans
;
Intercellular Signaling Peptides and Proteins
;
Peptides
;
Polymerase Chain Reaction
;
RNA
;
RNA, Messenger*
;
RNA-Directed DNA Polymerase
;
Uterine Cervical Neoplasms*