Wu YQ, Wang MW, Wu BY, You WD, Zhu QF. Expression of apoptosis-associated proteins and proliferating cell nuclear antigen (PCNA) in precancerous lesions of stomach.
Shijie Huaren Xiaohua Zazhi 2003;
11:1219-1222. [DOI:
10.11569/wcjd.v11.i8.1219]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM
To investigate the role of apoptosis-associated protein P53, Bcl-2, and proliferating cell nuclear antigen (PCNA) in different transformation in precancerous lesions of the stomach.
METHODS
Immunohistochemical method (LSAB) was used to assess P53, Bcl-2, and PCNA expressions in specimens from patients with (cancerous group, n = 52) and without (non-cancerous group, n = 56) gastric cancer.
RESULTS
The occurrence of gastric carcinoma had close correlation with the expression intensity of P53, Bcl-2 and PCNA. PCNA LI in cancerous group was significantly higher than that in non-cancerous group (P<0.01). In cancerous group, the majority (88.5%) had altered expression in one or more genes; multiple altered expression was found in 51.9%. The difference of multiple altered expression between cancerous group and non-cancerous group was statistically significant (P<0.05).
CONCLUSION
Multiple altered expression of P53, Bcl-2 and PCNA and their synergistic action might play a promotional role in the pathogenesis of gastric carcinoma, and the cell proliferative activity was significantly increased in gastric cancer.
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