Total RNA from MDA-MB-231 shNC/shBry was prepared and kept at 80°C. The RNA quality was determined using a Bioanalyzer 2200 (Agilent, Santa Clara, CA, USA). RNA with RIN (RNA integrity number)>8.0 was considered acceptable for cDNA library construction. Sequencing and bioinformatic analysis were performed by Shanghai Novelbio. Genes were considered to be significantly differentially expressed between groups when the P < 0.05 and the fold change of expression was more than 1.5.
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