過表達(dá)kisspeptin抑制MKN-45胃腺癌細(xì)胞的增殖和遷移
[Abstract]:Objective to investigate the expression of tumor metastasis inhibitor kisspeptin (KISS-1) in gastric adenocarcinoma and its effect on the proliferation and migration of gastric adenocarcinoma cells. Methods Real-time quantitative PCR and Western blot were used to detect the mRNA and protein levels of kisspeptin in 50 gastric adenocarcinoma tissues and corresponding paracancerous tissues. Kisspeptin small interfering RNA (kisspeptin-siRNA), control small RNA (control-siRNA) kisspeptin overexpression vector (p EGFP-N1-kisspeptin) and control empty vector (p EGFP-N1) were transfected into MKN-45 gastric adenocarcinoma cells, respectively. After 48 h culture, kisspeptinin, matrix metalloproteinase-9 (MMP-9) MMP-2, 尾 -catenin and C-myc protein levels were detected by Western blot assay, and cell migration was detected by cell scratch assay. Wnt/ 尾 -catenin signaling pathway inhibitor FH535 was used to detect the proliferation of gastric adenocarcinoma cells and apoptosis by flow cytometry. Results the expression of Kisspeptin in gastric adenocarcinoma was significantly lower than that in paracancerous tissues. Compared with empty vector group, the survival rate and mobility of MKN-45 cells were significantly lower than those of empty vector group, and the levels of MMP-9, MMP-2, 尾 -cateninine C-myc were significantly decreased after overexpression of kisspeptin, and the survival rate and mobility of MMP-9, MMP-2 and 尾 -cateninine C-myc were significantly increased after treatment with .FH535 compared with those in control-siRNA group. The migration trend was consistent with overexpression of kisspeptin cells. Conclusion the low expression of Kisspeptin in gastric adenocarcinoma inhibits the proliferation and migration of gastric adenocarcinoma cells through Wnt/ 尾 -catenin signaling pathway.
【作者單位】: 河北醫(yī)科大學(xué)第一醫(yī)院病理科;河北醫(yī)科大學(xué)第一醫(yī)院骨科;
【基金】:河北省衛(wèi)計(jì)委青年科技課題(20150642)
【分類號(hào)】:R735.2
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