Alternative splicing of PBRM1 mediates resistance to PD-1 blockade therapy in renal cancer

ABSTRACT: Alternative pre-mRNA splicing (AS) is a biological process that results in proteomic diversity. However, implications of AS alterations in cancer remain poorly understood. Herein, we performed a comprehensive AS analysis in cancer driver gene transcripts across fifteen cancer types and found global alterations in inclusion rates of the PBAF SWI/SNF chromatin remodeller complex submunit Polybromo-1 (PBRM1) exon 27 (E27) in most types of cancer tissues compared with those in normal tissues. Further analysis confirmed that PBRM1 E27 is excluded by the direct binding of RBFOX2 to intronic UGCAUG elements. In addition, the E27-included PBRM1 isoform upregulated PD-L1 expression via enhanced PBAF complex recruitment to the PD-L1 promoter. PBRM1 - wild-type patients with clear cell renal cell car

SUBMITTER: Dr. Namjoon Cho 

PROVIDER: S-SCDT-10_1038-S44318-024-00262-7 | biostudies-other |

REPOSITORIES: biostudies-other