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위암의 침윤과 전이에 관여하는 단백분해 효소 ( uPA , PAI - 1 및 Type 4 Collagenase ) 에 관한 연구
조재용(J . Y . Cho),정현철(H . C . Chung),노성훈(S . H . Noh),김호근(H . K . Kim),박준오(J . O . Park),이종인(J . I . Lee),유내춘(N . C . Yoo),김주항(J . H . Kim),노재경(J . K . Roh),김병수(B . S . Kim),강진경(J . K . Kang),민진식(J . S 대한내과학회 1997 대한내과학회지 Vol.52 No.1
N/A Objectives : Prognosis of gastric cancer is related to invasion and metastasis. Evidence has accumulated that invasion and metastasis in solid tumors require the action of tumor associated proteases, which promote the dissolution of the surrounding tumor matrix and the basement membrane. The serine protease [(urokinase-type plasminogen activator and plasminogen activator inhibitor-1 (PAI-1)] and type IV collagenase(MMP-9 and MMP- 2) appear to play a key role in these processes. Recent reports have demonstrated that expression of these proteolytic enzymes are elevated in breast and colon cancer and that it can be associated with invasiveness and poor prognosis. We therefore evaluated whether the expression and activation of uPA, PAI-1 and type IV collagenase might be of clinical value in gastric cancer as a tumor/biologically defined risk factor. Methods: In a consecutive series of 160 gastric cancer patients who were enrolled in the Yonsei Cancer Center Study Group, the expression of uPA, PAI-1 and type IV collagenase was determined by ELISA, zymography and mmunohistochemical method. The results were as follows. Results: 1) Both uPA and PAI-1 levels were significantly higher in cancer tissues than no rmal (uPA; 9.4±8.7vs 5.3±3.1 ng/mg protein cytosol, PAI-1;10.9±9.1vs 5.8± 2.9 ng/mg protein cytosol), (p<0.001 respectively). Both high uPA and PAI-1 levels were associated with differentiation of the tumor(p=0.04, p=0.004), and a high PAI-1 level was associated with lymph nodes metastasis at an advanced stage (p=0.003, p=0.04). There was a correlation between the levels of uPA and PAI-1 expression in cancer tissues(r=0.57). 2) The activation ratio of MMP-9 and MMP-2 in cancer tissues 0.32±0.25, 0.27±0.34 were significantly higher than in normal tissue 0.19±0,27, 0.06± 0.16(p<0.001). The MMP-9 activation was associated with lymphnode metastasis and the MMP-2 activation was associated with distant metastasis(p=0.011, p=0.041). 3) In univariate analysis all of the proteolytic enzymes were associated with short relapse free survival, but in multivariate analysis only the high uPA expression was an independent prognostic parameter for short relapse free survival of the gastric cancer patients. Conclusion: These data indicate that uPA, PAI-1 and type IV collagenase were involved in the progression of gastric cancer at different points of time by different mechanisms. The combined expression and activation of these proteolytic enzymes were poor prognostic factors in gastric cancer patients, so new therapy based on these biologic behavior of the tumor in the same stage are clinically applicable. In particular, uPA is a new independent variable for the identification of patients at high risk, therefore therapy targetting uPA can be applied as a new treatment modality for gastric cancer.
비소세포폐암에서 p53유전자의 구조적 이상 및 단백질 발현이 예후에 미치는 영향
이이형 ( Y. H. Lee ),신동환 ( D. H. Shin ),김주항 ( J. H. Kim ),임호영 ( H. Y. Lim ),정경영 ( K. Y. Chung ),양우익 ( W. I. Yang ),김세규 ( S. K. Kim ),장준 ( J. Chang ),노재경 ( J. K. Roh ),김성규 ( S. K. Kim ),이원영 ( W. Y. Lee ) 대한결핵 및 호흡기학회 1994 Tuberculosis and Respiratory Diseases Vol.41 No.4
Localized Primary Laryngeal Lymphoma Treated by Irradiation
김귀언(G E Kim),서창옥(C O Suh),김주항(J H Kim),김병수(B S Kim),이광길(K K Lee),김광문(K M Kim),홍원표(W P Hong) 대한두경부종양학회 1985 대한두경부 종양학회지 Vol.1 No.1
A case of primary laryngeal non -Hodgkin's lymphoma is detailed with a review of the literature, on this rare site of presentation. Histologic findings and radio-therapeutic technique are included with longterm follow-up data. Local radiotherapy is a curative treatment of choice due to longterm NED survival with preservation of voice.
식도에 발생한 원발성 Small Cell Carcinoma - 보고 -
박찬일(C I Park),김충배(C B Kim),최일섭(I S Choi),홍인철(I C Hong),김주항(J H Kim),이두연(D Y Lee) 대한소화기학회 1986 대한소화기학회지 Vol.18 No.1
The primary small cell carcinoma of the esophagus is very rare malignant disease. McKeown described if first 2 cases at 1952 and about 70 cases were reported thereafter. This tumor is indistinguishable clinically from the squamous cell carcinoma but it is more aggressive than that. It is easily diagnosed with the light microscope and the pulmonary lesion should be ruled out. And it is confirmed by detection of neurosecretory granule under the electron microscope or cytoplasmic argyrophilia with the Grimelius stain. The choice of treatment is the chemotherapy but the surgery or radiationtherapy is indicated in bulky tumor. The prognosis is extremely poor and the most cases were not survived 1 year. We experienced a case of primary small cell carcinoma of the esophagus at Severance Hospital Yonsei University College of Medicine.
박기현,김현만,허갑범,이현철,김경래,김한수,김주항,김세광 대한내분비학회 1988 Endocrinology and metabolism Vol.3 No.1
It has been recognized that hyperthyroidism occur in patients with trophoblastic disease, either hydatidiform moles or choriocarcinomas. In the past decade, several lines of evidence have shown that human chorionic gonadotropin, secreted by the trophoblastic disease, is a thyroid stimulator and causes hyperthyroidism. In order to evaluate the relationship between level of thyroid hormone and human chorionic gonadotropin in patients with trophoblastic disease, level of thyroid hormone, serum -HCG and amount of urinary excretion of HCG were measured and analyzed in 24 patients with hydatidiform mole and 11 patients with choriocarcinoma who were admitted to Yonsei University Severance Hospital during the period from January 1981 to December 1986. The results are summarzed as follows: 1) Hyperthyroidism was observed in 33.3% of the patients with hydatidiform mole and in 18.2% of the patients with choriocarcinoma. 2) The amount of 24 hour urinary excretion of HCG in patients with hyperthyroidism was more than that in euthroid patients. 3) There was no difference in the level of thyroid hormone, serum -HCG, and amount of 24 hour urinary excretion of HCG in patients with hydatidifrom mole and choriocarcinoma. 4) The amount of 24 hour urinary excretion of HCG had significant correlation with FT4, whereas no similar correlation was observed between the levels of thyroid hormone and serum -HCG. In conclusion, the occurrence of hyperthyroidism is closely related with the amount of urinary excretion of HCG in patients with trophblastic disease.