Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/10340
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Type: Journal article
Title: Promoter region methylation does not account for the frequent loss of expression of the Fas gene in colorectal carcinoma
Author: Butler, L.
Dobrovic, A.
Bianco-Miotto, T.
Cowled, P.
Citation: British Journal of Cancer, 2000; 82(1):131-135
Publisher: Churchill Livingstone
Issue Date: 2000
ISSN: 0007-0920
1532-1827
Statement of
Responsibility: 
LM Butler, A Dobrovic, T Bianco and PA Cowled
Abstract: Expression of the apoptosis-promoting Fas gene is frequently reduced or lost during the development of colorectal carcinoma. However, loss of heterozygosity at the Fas locus or Fas gene rearrangements do not account for the loss of expression of Fas, raising the possibility that methylation of the Fas promoter may inhibit gene expression in colorectal carcinomas. We have examined the Fas promoter region CpG island for evidence of hypermethylation in colorectal tumours. Forty-seven specimens of colorectal adenoma and carcinoma, as well as six samples of normal colonic mucosa, were examined by Southern blotting for methylation at HpaII and Cfol sites in this region. No methylation was detected in any of the specimens, suggesting that hypermethylation is not primarily responsible for the loss of expression of the Fas gene during colorectal tumorigenesis.
Keywords: CpG island; methylation; gene silencing; apoptosis
Rights: © 2000 Cancer Research Campaign
RMID: 0001000147
DOI: 10.1054/bjoc.1999.0889
Appears in Collections:Surgery publications

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