Liu XH, Cao ZX, Geng M, Cao YC, Wang Y, Xin X, Wang CC, Bi LQ. Significance of Wnt-5a expression in gastric carcinoma.
Shijie Huaren Xiaohua Zazhi 2010;
18:1222-1226. [DOI:
10.11569/wcjd.v18.i12.1222]
[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 detect Wnt-5a expression in gastric carcinoma (GC) and explore its role in the development and progression of GC.
METHODS: The expression of Wnt-5a mRNA in 10 fresh GC and matched tumor-adjacent tissue samples was detected by real-time reverse transcription-polymerase chain reaction (RT-PCR). The expression of Wnt-5a and β-catenin proteins in 84 GC and matched tumor-adjacent tissue samples as well as 20 normal gastric mucosa tissue samples was examined by immunohistochemistry using the streptavidin-peroxidase method.
RESULTS: Real time RT-PCR analysis showed that the relative level of Wnt-5a mRNA was significantly higher in GC than in tumor-adjacent tissue (5.919 ± 1.869 vs 1.281 ± 0.744, P < 0.05). The positive rate of Wnt-5a protein expression was also significantly higher in GC than in tumor-adjacent tissue (40.54% vs 14.29%, P < 0.05). Wnt-5a expression was significantly associated with advanced TNM stage and lymph node metastasis (both P < 0.01). The rate of aberrant β-catenin expression was significantly higher in GC than in tumor-adjacent tissue (70.23% vs 38.10%, P < 0.01). Aberrant β-catenin expression was associated with advanced tumor stage and lymph node metastasis (both P < 0.05). The expression of Wnt-5a was correlated with that of β-catenin (P < 0.01).
CONCLUSION: Wnt-5a may exert oncogenic functions in GC. Wnt-5a may be activated in the early stage of gastric tumorigenesis and be related to the poor prognosis of GC. Wnt-5a and β-catenin might play an important role in the development of GC via different signal pathways.
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