VHL, BAP1, PBRM1, SETD2 Expression in Clear Cell Renal Carcinoma, Association With PD-1, PD-L1, PD-L2 mRNA Level

Liudmila Spirina; Zahar Yurnazov; Evgeny Usynin; Irina Kondakova; Ekaterina Ladutko; Evgeny Choynzonov

doi:10.20944/preprints202107.0495.v1

Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Version 1 : Received: 20 July 2021 / Approved: 21 July 2021 / Online: 21 July 2021 (14:42:20 CEST)

Novel mechanism of ccRCC progression is essential, including PBRM1, BAP1, and SETD2 in histone-modifying and chromatin remodeling genes. The study aimed to investigate VHL, PD-1, PD-L1, PD-L2. BAP1, PBRM1, SETD2 expression in ccRCC primary cancers and metastatic tissues associated with the cancer dissemination. A total of 62 patients with RCC were enrolled in the study. Investigation of mRNA level of VHL, PD-1, PD-L1, PD-L2. PCR in real-time performed BAP1, PBRM1, SETD2 with the previous RNA isolation. Western Blotting analysis was used for detecting the p-VHL protein content in tissues. The VHL expression and p-VHL content determined the aggressive cancer behavior and elevated in disseminated tumors. The cancer dissemination was accompanied by an increase in both mRNA and VHL content. The PD-L2 prevalence in metastatic cancers is crucial in tumor progression. ccRCC progression in VHL overexpression is associated with the decrease in BAP1 gene expression. It is revealed the heterogeneity in molecular markers in primary tumors and metastases. The low mRNA level of BAP1, PBRM1, SETD2, PD-1, PD-L1, PD-L2 in metastases compared with primary tumors were found. We show a novel mechanism for VHL tumor progression and present a new instrument and factor targeting tumor-related pathologies with p-VHL/HIF altered function.

kidney cancers; VHL; PD-1; PD-L1; PD-L2; BAP1; PBRM; SETD2; primary tumor; metastasis.

MEDICINE & PHARMACOLOGY, Allergology

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VHL, BAP1, PBRM1, SETD2 Expression in Clear Cell Renal Carcinoma, Association With PD-1, PD-L1, PD-L2 mRNA Level

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