Mapping of the methylation pattern of the hMSH2 promoter in colon cancer, using bisulfite genomic sequencing

The detailed methylation status of CpG sites in the promoter region of hMSH2 gene has yet not to be reported. We have mapped the complete methylation status of the hMSH2 promoter, a region that contains 75 CpG sites, using bisulfite genomic sequencing in 60 primary colorectal cancers. And the expres...

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Detalles Bibliográficos
Autores principales: Zhang, Hua, Fu, Wei-ling, Huang, Qing
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2006
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1570131/
https://www.ncbi.nlm.nih.gov/pubmed/16911791
http://dx.doi.org/10.1186/1477-3163-5-22
Descripción
Sumario:The detailed methylation status of CpG sites in the promoter region of hMSH2 gene has yet not to be reported. We have mapped the complete methylation status of the hMSH2 promoter, a region that contains 75 CpG sites, using bisulfite genomic sequencing in 60 primary colorectal cancers. And the expression of hMSH2 was detected by immunohistochemistry. The hypermethylation of hMSH2 was detected in 18.33% (11/60) of tumor tissues. The protein of hMSH2 was detected in 41.67% (25/60) of tumor tissues. No hypermethylation of hMSH2 was detected in normal tissues. The protein of hMSH2 was detected in all normal tissues. Our study demonstrated that hMSH2 hypermethylation and protein expression were associated with the development of colorectal cancer.

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