PRMT5 inhibition increases PD-L1 expression and immunoresistance in lung cancer

Purpose: We sequenced mRNA from 3 biological replicates each of NCI-H460 lung adenocarcinoma cell lines expressing shRNA against GFP (control) or PRMT5.We then determined differential gene expression to identify the relationship between PRMT5 expression and tumorigenesis. Methods: PRMT5 shRNA and control shRNA NCI-H460 cells were generated by lentivirus targeting PRMT5 or GFP(control), in triplicate,using illumina Novaseq™ 6000. Results:PRMT5 specific knockdown cells were enriched in the negative regulation of T cells and type I IFN response,we found that negative regulation of T cell molecules like Arg2, CD274 and IDO1 were increased in the PRMT5 shRNA group compared with the control group. Overall design: Transcriptome analysis of mRNA testing the role of PRMT5 by knockdown in NCI-H460 human lung adenocarcinoma cells