The 3′ Non-Coding Sequence Negatively Regulates PD-L1 Expression, and Its Regulators Are Systematically Identified in Pan-Cancer

نویسندگان

چکیده

The 3′-untranslated region (3′-UTR) of PD-L1 is significantly longer than the coding sequences (CDSs). However, its role and regulators have been little studied. We deleted whole 3′-UTR by CRISPR-Cas9. Prognostic analysis was performed using online tools. Immune infiltration Timer Xcell packages. Immunotherapy response prediction Cox regression R software. MicroRNA network conducted Cytoscape level dramatically up-regulated in cells after deleting 3′-UTR. Additionally, we discovered a panel 43 RNA-binding proteins (RBPs) whose expression correlates with majority cancer cell lines tumor tissues. Among these RBPs, PARP14 widely associated immune checkpoints, microenvironment, immune-infiltrating various types. also identified 38 microRNAs individual expressions are across different cancers. Notably, miR-3139, miR-4761, miR-15a-5p showed significant associations most Furthermore, revealed 21 m6A that strongly correlate PD-L1. Importantly, combining RBP regulators, established an signature consisting RBMS1, QKI, ZC3HAV1, RBM38. This can be used to predict responsiveness patients checkpoint blockade treatment. demonstrated critical regulation number potential types cancer. biomarker generated from our findings shows promise predicting patient prognosis. further biological investigation necessary explore regulators.

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ژورنال

عنوان ژورنال: Genes

سال: 2023

ISSN: ['2073-4425']

DOI: https://doi.org/10.3390/genes14081620