ArticleCell death & disease2026
TRIM28 orchestrates SUMO-ubiquitin crosstalk to stabilize PPARG and drive bladder cancer progression.
Article in Cell death & disease, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- DHCR24 promotes endometrial carcinoma progression and is associated with cellular senescence regulation.Medical oncology (Northwood, London, England) · 2026Article
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11 authors.
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Abstract
Bladder cancer (BLCA) is a growing health burden with rising incidence and limited therapeutic options. To define the role of the Tripartite Motif (TRIM) family in BLCA, we integrated multi-cohort transcriptomic analyses with functional and mechanistic validation. TRIM28 was identified as the most consistently upregulated TRIM member in BLCA and correlated with poor prognosis. TRIM28 depletion suppressed, whereas its overexpression enhanced, BLCA cell proliferation. Mechanistically, TRIM28 directly bound to PPARG and acted as a SUMO E3 ligase to catalyze SUMOylation of PPARG at Lys94 within a noncanonical YKYD motif. This modification impaired PPARG recognition by the E3 ubiquitin ligase STUB1, reduced ubiquitin-proteasome degradation, and stabilized PPARG protein. Stabilized PPARG transcriptionally activated cholesterol biosynthetic genes, including DHCR7 and DHCR24, reprogramming cholesterol metabolism to promote BLCA progression. In summary, we identify a TRIM28-PPARG SUMO-ubiquitin crosstalk axis that drives metabolic remodeling and tumor growth in BLCA, highlighting TRIM28-mediated PPARG SUMOylation as a potential therapeutic target for metabolic intervention.
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