Liu B, Gu LP, Xing CP, Ha YD, Gao ZF, Su QJ, Zhang JH, Qian Z, Dong L. Clinical significance and association of caveolin-1 and Dnmt1 gene with carcinogenesis, development of gastric carcinomas.
Shijie Huaren Xiaohua Zazhi 2009;
17:1561-1566. [DOI:
10.11569/wcjd.v17.i15.1561]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the expression of caveolin-1and Dnmt1 genes in normal gastric mucosa and gastric carcinoma, and to detect methylation status of CpG island of caveolin-1 gene promoter region located in exon 1 and its clinical significance in gastric carcinoma.
METHODS: Methylation status of caveolin-1 gene in 60 gastric carcinoma cases and 14 normal gastric tissues was detected using Methylation-specific PCR (MSP). SP immunohistochemcal method and in site hybridization (ISH) were used to detect the expression of caveolin-1 protein and Dnmt1 protein and mRNA.
RESULTS: The methylation rate of the 5' CpG island of caveolin-1 gene was 0% in 14 normal gastric tissues, and 73.3% in 60 gastric carcinoma cases. There was significant difference between two groups (P < 0.005). Methylation status of caveolin-1 gene was related to the patient's age. The positive rates of caveolin-1 protein, Dnmt1 protein and mRNA were 30%, 63.3% and 53.3% in 60 gastric carcinoma cases.
CONCLUSION: The methylation and inactivation of caveolin-1 gene leads to carcinogenesis and development of gastric carcinomas by the function of Dnmt1 gene.
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