Elevated FBXW10 drives hepatocellular carcinoma tumorigenesis via AR-VRK2 phosphorylation-dependent GAPDH ubiquitination in male transgenic mice

Autor: Xiao-Tong Lin, Jie Zhang, Ze-Yu Liu, Di Wu, Lei Fang, Chun-Ming Li, Hong-Qiang Yu, Chuan-Ming Xie
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Cell Reports, Vol 42, Iss 7, Pp 112812- (2023)
Druh dokumentu: article
ISSN: 2211-1247
DOI: 10.1016/j.celrep.2023.112812
Popis: Summary: Hepatocellular carcinoma (HCC), the most common liver cancer, occurs mainly in men, but the underlying mechanism remains to be further explored. Here, we report that ubiquitinated glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is responsible for HCC tumorigenesis in males. Mechanistically, FBXW10 promotes GAPDH polyubiquitination and activation; VRK2-dependent phosphorylation of GAPDH Ser151 residue is critical for GAPDH ubiquitination and activation. Activated GAPDH interacts with TRAF2, leading to upregulation of the canonical and noncanonical NF-κB pathways, and increases PD-L1 and AR-VRK2 expression, followed by induction of immune evasion, HCC tumorigenesis, and metastasis. Notably, the GAPDH inhibitor koningic acid (KA) activates immune response and protects against FBXW10-driven HCC in vivo. In HCC clinical samples, the expression of active GAPDH is positively correlated with that of FBXW10 and VRK2. We propose that the FBXW10/AR/VRK2/GAPDH/NF-κB axis is critical for HCC tumorigenesis in males. Targeting this axis with KA is a potential therapeutic strategy for male HCC patients.
Databáze: Directory of Open Access Journals