微管蛋白抑制劑ZP-20f對口腔鱗狀細胞癌周期及凋亡的作用機制
[Abstract]:Objective: to investigate the effects of tubulin inhibitor (ZP-20f) on the proliferation, apoptosis and cell cycle of oral squamous carcinoma cells cultured in vitro by MTT, Western Blot assay, plate clone assay and flow cytometry. And carries on the correlation data analysis. To investigate the mechanism of tubulin inhibitor Zp-20f in oral squamous cell carcinoma. Methods: 1. The cell culture of oral squamous cell carcinoma (SCC-9,CAL-27) cells. 2MTT assay was used to detect the toxic effect of Zp-20f on oral squamous cell carcinoma SCC-9,CAL-27 cells, and the concentration of IC50.3, was calculated. Flow cytometry was used to detect the cell cycle and apoptosis rate of oral squamous cell SCC-9,CAL-27 cells. 4. The toxic effect of Zp-20f on SCC-9,CAL-27 of oral squamous cell carcinoma cells was analyzed by plate clone formation assay. The expression of related proteins in SCC-9,CAL-27 cells was detected by Wetern Blot. Results: 1ZP-20f could significantly inhibit the proliferation of oral squamous cell carcinoma (OSCC) cell line ZP-20f in a certain concentration range, and its inhibitory activity was concentration-dependent. Plate cloning assay showed that ZP-20f could inhibit the formation of tumor cell clone in a concentration-dependent manner. 2ZP-20f could significantly induce G _ 2 / M phase arrest of oral squamous carcinoma cells in a certain concentration range by blocking cell cycle ZP-20f in G _ 2 / M phase. With the increase of the concentration of compounds, the proportion of G2 / M phase cells increased. 3ZP-20f could significantly induce the G _ 2 / M phase arrest of oral squamous carcinoma cells in a certain concentration range by blocking cell cycle ZP-20f in G _ 2 / M phase. With the increase of the concentration of compounds, the proportion of cells in G _ 2 / M phase increased. 4. The change of cell cycle associated protein content in a certain concentration range could cause changes in cell cycle and apoptosis-related protein content. Cell cycle and apoptosis-related protein Cycling B1, p-H3 and cleaved-PARP were significantly increased in a concentration-dependent manner (Fig. 5). Conclusion: (1) ZP-20f can inhibit the proliferation of oral squamous cell SCC-9 and Cal-27 in vitro, block the cell cycle at G _ 2 / M phase and induce apoptosis, and ZP-20f has a good anti-tumor effect in vitro. The mechanism may be related to the upregulation of p-H3 or cleaved-PARP and the inhibition of tubulin. It is a promising antitumor drug.
【學(xué)位授予單位】:南昌大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:R739.8
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