Loss of alleles on chromosome 18 and on the short arm of chromosome 17 in polyploid colorectal carcinomas

Loss of alleles on chromosome 18 and on the short arm of chromosome 17 in polyploid colorectal carcinomas
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多倍体结直肠癌中 18 号染色体和 17 号染色体短臂上等位基因的丢失

DOI:
10.1002/ijc.2910410315
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发表时间:
1988
影响因子:
6.4
通讯作者:
G. Thomas
G. Thomas
中科院分区:
医学1区
文献类型:
--
作者:
J. Monpezat;O. Delattre;A. Bernard;D. Grunwald;Y. Remvikos;M. Muleris;R. Salmon;G. Frelat;B. Dutrillaux;G. Thomas

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对19例来自已知位于18号染色体或17号染色体短臂上的RFLP杂合患者的结直肠癌(近二倍体或多倍体)的接合性进行了检查。在大多数情况下,至少有一个等位基因明显代表不足。对5例多倍体肿瘤进行了杂合性完全缺失缺失的原因研究。结果表明,在这些肿瘤中,二倍体成分基本上由非肿瘤细胞组成,保持杂合性,因为多倍体成分总是失去杂合性。结果强烈提示,许多结直肠癌起源于单个细胞,该细胞至少丢失了18号染色体的一部分或17号染色体的一个短臂,或两者兼而有之。
The zygosity of 19 colorectal carcinomas (either near‐diploid or polyploid) from patients known to be heterozygous for RFLPs located on chromosome 18 or on the short arm of chromosome 17 has been examined. In most cases, at least one allele was significantly under‐represented. The reason for the absence of complete loss of heterozygosity was investigated for 5 polyploid tumors. It was shown that the diploid component which, in these tumors, is essentially composed of non‐neoplastic cells, remains heterozygous as the polyploid component invariably loses heterozygotity. The results strongly suggest that many colorectal carcinomas originate from a single cell which had lost at least part of either chromosome 18 or of one short arm of chromosome 17, or both.
DOI: 10.1073/pnas.82.18.6216
发表时间: 1985-01-01
影响因子: 11.1
作者:
HANSEN, MF;KOUFOS, A;CAVENEE, WK
通讯作者: CAVENEE, WK
DOI: 10.1056/nejm198605083141901
发表时间: 1986-05-08
影响因子: 158.5
作者:
CAVENEE, WK;MURPHREE, AL;NORDENSKJOLD, M
通讯作者: NORDENSKJOLD, M
恶性黑色素瘤中多态性限制片段的丢失:对肿瘤异质性的影响。
DOI: 10.1073/pnas.82.5.1470
发表时间: 1985
影响因子: 11.1
作者:
Dracopoli,NC;Houghton,AN;Old,LJ
通讯作者: Old,LJ
葡萄膜黑色素瘤 2 号染色体多态位点等位基因丢失。
DOI: 10.1016/0165-4608(86)90136-6
发表时间: 1986
影响因子: --
作者:
Mukai,S;Dryja,TP
通讯作者: Dryja,TP