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Analysis of the TSC1 and TSC2 genes in sporadic renal cell carcinomas

Parry, Lee, Maynard, Julie Helen, Patel, A., Clifford, S. C., Morrissey, C., Maher, E. R., Cheadle, Jeremy Peter and Sampson, Julian Roy 2001. Analysis of the TSC1 and TSC2 genes in sporadic renal cell carcinomas. British Journal of Cancer 85 , pp. 1226-1230. 10.1054/bjoc.2001.2072

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Abstract

The genetic events involved in the aetiology of non-clear-cell renal cell carcinoma (RCC) and a proportion of clear cell RCC remain to be defined. Germline mutations of the TSC1and TSC2genes cause tuberous sclerosis (TSC), a multi-system hamartoma syndrome that is also associated with RCC. We assessed 17 sporadic clear cell RCCs with a previously identified VHLmutation, 15 clear-cell RCCs without an identified VHLmutation and 15 non-clear-cell RCCs for loss of heterozygosity (LOH) at chromosomes 9q34 and 16p13.3, the chromosomal locations of TSC1and TSC2. LOH was detected in 4/9, 1/11 and 3/13 cases informative at both loci. SSCP analysis of the whole coding region of the retained allele did not reveal any cases with a detectable intragenic second somatic mutation. Furthermore, RT-PCR analysis of TSC1and TSC2on total RNA from 8 clear-cell RCC cell lines confirmed expression of both TSC genes. These data indicate that biallelic inactivation of TSC1or TSC2is not frequent in sporadic RCC and suggests that the molecular mechanisms of renal carcinogenesis in TSC are likely to be distinct.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
European Cancer Stem Cell Research Institute (ECSCRI)
Medicine
Subjects: Q Science > QH Natural history > QH426 Genetics
R Medicine > RC Internal medicine > RC0254 Neoplasms. Tumors. Oncology (including Cancer)
Uncontrolled Keywords: TSC1, TSC2, sporadic renal cell carcinoma
Publisher: Nature Publishing Group
ISSN: 0007-0920
Last Modified: 13 Apr 2019 21:05
URI: http://orca-mwe.cf.ac.uk/id/eprint/47504

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