OATP1B1 388GG和521CC基因多態(tài)表達(dá)平臺(tái)建立及對(duì)他莫西芬的細(xì)胞攝取研究
[Abstract]:Aim: to study the uptake of OATP1B1388GG and 521CC gene polymorphisms in Tamoxifentam cells by establishing a polymorphic expression platform for OATP1B1388GG and 521CC, and using this platform to study the uptake of OATP-1B1388GG and 521CC gene polymorphisms in Tamoxifentam cells. Methods: pcDNA3.1 (-) OATP1B1 plasmids were constructed by molecular biology technique, and pcDNA3.1 (-) -OACA1B1388GG and 521CC plasmids were constructed by site-directed mutagenesis. Before transfection, Real-time PCR was used to detect the expression of HEK293/MCF-7SLCO1B1. The constructed plasmids were transfected into HEK293/MCF-7 cells, and the expression of OATP1B1 protein was detected by Western-blot. The experiment was divided into six groups: group A: HEK293 / MCF-7B: HEK293/MCF-7: TAMM-C: HEK293/MCF-7 transfected with pcDNA3.1 (-) plasmid; group D: HEK293/MCF-7 transfected with pcDNA3.1 (-) OATP1B1 plasmid; group E: HEK293/MCF-7 transfected pcDNA3.1 (-) OATP1B1388GG plasmid; group F: HEK293/MCF-7 transfected pcDNA3.1 (-) OATP1B1521CC plasmid. In this experiment, the expression platform of pcDN A3.1 (-) OATP1B1-HEK293 gene polymorphism cells was used, 10 渭 M 30 渭 M and 100 渭 M TAM were added for 24 h and 48 h, respectively. The concentration of TAM in HEK293 cells was measured by HPLC-MS/MS. At the same time, pcDNA3.1 (-) OATP1B1-MCF-7 was treated with 10 渭 M TAM for 24 h and 48 h, respectively. The inhibition rate, apoptosis and cell cycle were detected by MTT and flow cytometry. Results there was no significant difference in TAM content between groups B and C after 24 and 48 hours (P0.05) the content of TAM in group B was significantly lower than that in group D and group F (P0.05). The content of TAM in group D was slightly higher than that in group E and F (P0.05). There was no significant difference between the two groups (P0.05). There was no significant difference in inhibition rate between group B and group C after 24 hours and 48 hours (P0.05). The inhibitory rate of group B was significantly lower than that of group D and group F (P0.05). The inhibitory rate of group D was slightly higher than that of group E and F (P0.05). There was no significant difference between the two groups (P0.05). 3) there was no significant difference in apoptosis rate between group B and group C after 24 hours and 48 hours (P0.05). The apoptosis rate of group B was significantly lower than that of group D E and group F (P0.05). The rate of apoptosis in group D was slightly higher than that in group E and F, and there was no significant difference between the groups (P0.05). After 24 hours and 48 hours of administration, the cell cycle of group D and group F was blocked in the Go/G1 phase, and the cells in S and G 2m phases were decreased. The difference was statistically significant (P0.05), but there was no significant difference between group B and group C (P0.05). The cell cycle in group B and group D, E and F decreased the increase of cells in S and G 2m phase (P0.05). The Go/G1 phase in group D was slightly lower than that in group E and F in S and G 2m, and there was no significant difference between the two groups (P0.05). Conclusion: the polymorphic expression platform of OATP1B1388GG and 521CC genes was established. The results showed that the mutation of OATP 1B1388GG and 521CC resulted in a decrease in the ability of OATP1B1 to uptake TAM, but there was no significant difference compared with the unmutated genome.
【學(xué)位授予單位】:皖南醫(yī)學(xué)院
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:R96
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