TRIM59 is an E3 ubiquitin ligase with pleiotropic functions in immunity, development, and disease pathogenesis 1. As a negative regulator of innate immunity, TRIM59 suppresses RLR-induced activation of IRF3/7 and NF-κB through ECSIT interaction, while also regulating autophagy by modulating BECN1 transcription and K63-linked ubiquitination 23. TRIM59 mediates K48-linked ubiquitination of TRAF6, promoting its proteasomal degradation 3. Clinically, TRIM59 is significantly upregulated across 15 solid tumor types and serves as a diagnostic and prognostic biomarker associated with poor survival outcomes 4. In hepatocellular carcinoma, TRIM59 promotes proliferation, migration, and invasion through p53 pathway regulation 5. In pancreatic cancer, TRIM59 confers gemcitabine resistance by stabilizing RBPJ through K63-linked ubiquitination, activating Notch signaling in a positive feedback loop 6. TRIM59 also inhibits ferroptosis by promoting p53 degradation via the SLC35F2-SYVN1-TRIM59 axis 7. In prostate cancer, TRIM59 upregulation drives neuroendocrine differentiation and treatment resistance by enhancing RB1/P53 degradation and upregulating SOX2 8. In pulmonary hypertension, TRIM59 overexpression accelerates PASMC proliferation and vascular remodeling under YAP1/TEAD4 transcriptional regulation 9.