Loss of TRIM44 promotes renal cell carcinoma progression by regulating K48-linked ubiquitination of vimentin.

ABSTRACT: Tripartite motif-containing 44 (TRIM44), a member of the TRIM protein family, has emerged as a regulator in multiple cancer types, yet its functional role and molecular mechanisms in clear cell renal cell carcinoma (ccRCC) remain poorly characterized. Here, we identified TRIM44 as a tumor suppressor in ccRCC through integrated clinical and functional analyses. Clinically, TRIM44 expression was significantly downregulated in ccRCC tissues compared with adjacent normal tissues, and its reduced expression correlated with advanced tumor stage and poor patient prognosis. Functionally, gain-of-function and loss-of-function experiments demonstrated that TRIM44 potently inhibited ccRCC cell migration, invasion, and proliferation in vitro and in vivo. Mechanistically, TRIM44 directly interacts with

SUBMITTER: Shi K 

PROVIDER: S-EPMC12547515 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature