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설정훈(Jeong Hun Seol),김홍준(Hong Jun Kim),홍재민(Jae Min Hong),노경진(Kyung Jin Rho),홍현준(Hyun Jun Hong) 대한두경부종양학회 2010 대한두경부 종양학회지 Vol.26 No.2
Primary squamous cell carcinoma of the thyroid gland is a very rare event, representing much less than 1% of all malignant tumors of the thyroid gland. The cancer is characterized by rapidly progressive clinical course in spite of its differentiated morphologic features. In most cases, a squamous epithelium is believed to be a re-sult of metaplasia of a follicular epithelium, although in rare exceptions, it can originate from a remnant of the thyroglossal duct or ultimobranchial body. Squamous cell carcinoma of the thyroid gland can occur in a pure form or mixed with adenocarcinoma. Because their clinical behavior is more aggressive than that of other malignant neoplasm of thyroid gland, the tumor should be treated more vigorously at its initial stage. Recently, authors ex-perienced one case of primary squamous cell carcinoma of the thyroid gland. We report our case with a brief re-view of literature.
두경부 편평상피세포암주에서 방사선 내성 관련 유전인자의 확인
백승재(Seung Jae Baek),이세영(Sei Young Lee),최윤표(Yoon Pyo Choi),조남훈(Nam Hoon Cho),박행란(Haeng Ran Park),설정훈(Jeong Hun Seol),황준연(Jun Yeon Hwang),김세헌(Se-Heon Kim),라선영(Sun Young Rha) 대한두경부종양학회 2011 대한두경부 종양학회지 Vol.27 No.2
Background and Objective:Radiation resistance(RR) is one of main determinants of treatment outcome in oral squamous cell carcinoma(OSCC), but accurate prediction of RR is difficult. We aim to establish RR OSCC cell lines and identify genes related with RR by a measurement of altered gene expression after inducing RR. Material and Methods:OSCC cell lines, SCC15, SCC25 and QLL1, were treated with 2Gy radiation per session, and parts of them were alive in finally accumulated dosage of 60Gy through 30 times repetition of radiotherapy for inducing RR cell lines. We compared results of cDNA array and proteomics in non-radiated cell lines and RR cell lines to detect changes of gene expression. Western blot was used for the validation of results. Results:cDNA array revealed 265 commonly up-regulated genes and 268 commonly down-regulated genes in 3 RR cell lines comparing their non-radiated counterpart. Among them, 30 cancer related genes were obtained. Proteomics showed 51 commonly altered protein expressions in 3 RR cell lines and 18 cancer related proteins were obtained. Among the detected genes, we found NM23-H1 and PA2G4 were over-expressed in both cDNA array and pro-teomics. Western blot showed increased expression of NME1 in RR cell lines but not in PA2G4. Conclusion: We concluded that NM23-H1 may be a candidate of RR related gene and over-expression of NM23-H1 could be a biomarker to predict RR in OSCC.