Application of miR-218 in preparing breast cancer chemotherapeutic drug sensitizer
A kind of mir-218, 1. The technology of mir-218 is applied in the application field of preparing breast cancer chemotherapeutic drug sensitizers, which can solve the problems of unsatisfactory sensitization effect and few types, and achieve inhibition of proliferation and invasion ability, increase The effect of sensitivity
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[0023] 1. Cell culture
[0024] Breast cancer cell lines MCF-7, MDA-MB-231, and SUM1315 were purchased from the Cell Resource Center, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences. The three breast cancer cell lines were all cultured in Dulbecco's medium containing 10% (V / V) fetal bovine serum (FBS), supplemented with 100 U / mL penicillin and 100 μg / mL streptomycin, and all cells were placed in a medium containing 5 %CO 2 In a 37°C incubator, subculture every 2 to 3 days.
[0025] 2. Extraction and purification of microRNA in breast cancer cells and tissues
[0026] A total of 123 cases were included in this study, all of whom were diagnosed with breast cancer and underwent surgery in the First Affiliated Hospital of Nanjing Medical University from 2014 to 2017. We collected 123 breast cancer tissues and 35 adjacent normal tissues. Use Trizol reagent to extract total RNA from breast cancer cells and breast cancer clinical samples, using mirVana T...
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