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题目:: Comparative genomic hybridization detects novel deletions and amplifications in head and neck squamous cell carcinomas.
作者:: Speicher(M R),Howe(C),Crotty(P),du Manoir(S),Costa(J),Ward(D C)
状态:: 发布时间1995-03-30 , 更新时间 2006-11-15
期刊:: Cancer Res
摘要:: To gain a better understanding of genetic changes in squamous cell carcinomas of the head and neck we used comparative genomic hybridization for the analysis of 13 primary tumors. Copy number increases were most frequently observed on chromosomes 3q (10 cases) and 5p (8 cases) and less frequently on 1q (4 cases), 2 (1 case), 7 (2 cases), 8q (2 cases), 9 (1 case), 10p (2 cases), 13q (2 cases), 14q (1 case), 16 (1 case), 17 (2 cases), 20p (2 cases), 21q (1 case) and 22q (1 case). Copy number decreases occurred most frequently at 3p (5 cases), 5q (4 cases), 19p (6 cases), and 19q (5 cases). Copy number decreases also were observed on 1p (2 cases), 2q (2 cases), 4p (2 cases), 4q (2 cases), 7q (2 cases), 8p (1 case), 10q (1 case), 11p (2 cases), 11q (3 cases), 13q (3 cases), 14q (1 case), 16p (1 case), 17p (3 cases), 17q (1 case), 18q (1 case), and 22 (2 cases). Eight sites exhibiting significant sequence amplification were mapped to 3q26-->qter (3 cases), 11q13 (2 cases), 12p (2 cases), 2q33-36 (1 case), 7q21-22 (1 case), 7q33-->qter (1 case), 9p (1 case), and 13q32-->qter (1 case). Our data suggest that the regions 3q26-->qter and 5p may harbor oncogenes important for initiation or progression of squamous cell carcinomas of the head and neck. In addition, comparative genomic hybridization defines a subgroup of tumors with 11q13 involvement, the location of the PRAD1/(CCND1)/cyclin D1 gene.
语言:: eng
DOI:

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