Hu G, Wang X, Zheng QJ, Wan YL, Liu YC, Zhu J. Construction of shRNA expression plasmids targeting the Pyk2 gene and their expression in Lovo cells.
Shijie Huaren Xiaohua Zazhi 2010;
18:877-882. [DOI:
10.11569/wcjd.v18.i9.877]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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 construct the recombinant small hairpin RNA (shRNA) plasmids targeting the proline-rich tyrosine kinase 2 (Pyk2) gene (pGCsi-Pyk2 shRNA) and detect their expression in Lovo cells.
METHODS: Three pairs of Pyk2 shRNA sequences were designed and ligated to the pGCsi vector that contains U6 promoter and hygromycin B to obtain shRNA expression plasmids targeting the Pyk2. The recombinant pGCsi-Pyk2 shRNA plasmids were introduced into Lovo cells by liposome-mediated transfection and selected with hygromycin B. The expression of Pyk2 mRNA and protein was detected by reverse transcription-polymerase chain reaction (RT-PCR) and Western blot, respectively.
RESULTS: Restriction enzyme digestion and sequence analysis showed that recombinant pGCsi-Pyk2 shRNA plasmids were successfully constructed. The expression levels of Pyk2 mRNA and protein in Lovo cells transfected with pGCsi-Pyk2 shRNA plasmids were significantly lower than those in Lovo cells transfected with empty or negative plamsids.
CONCLUSION: Recombinant pGCsi-Pyk2 shRNA plasmids are successfully constructed. Their transfection can silence the expression of Pyk2 gene in Lovo cells. The pGCsi-Pyk2 shRNA plasmids obtained lay a foundation for further study of the role of the Pyk2 gene in the pathogenesis of colorectal cancer.
Collapse