ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2026
DCAF12 Ubiquitin Ligase Promotes Lung Cancer Metastasis by Modulating the TRiC/CCT Chaperonin Complex.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- CCT3 Enhances Lung Adenocarcinoma Progression by Promoting p53 Ubiquitination and Degradation.Medicina (Kaunas, Lithuania) · 2026Article
- Ubiquitination-Driven Reprogramming of Proteostasis in Metastasis.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Review
- DCAF12 Ubiquitin Ligase Promotes Lung Cancer Metastasis by Modulating the TRiC/CCT Chaperonin Complex.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
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14 authors.
Funding
Abstract
Metastasis is the primary challenge in lung cancer treatment. Although proteostasis supports tumor growth, the mechanism by which ubiquitin ligases reprogram chaperone networks to drive metastasis is poorly understood. In this study, it is revealed that DDB1-CUL4-associated factor (DCAF12), a substrate receptor for CUL4-RING ubiquitin ligases, regulates metastatic progression through ubiquitin-mediated proteostatic reprogramming. DCAF12 depletion suppresses tumor cell migration and stemness in vitro and reduces pulmonary/hepatic metastasis in vivo. Mechanistically, DCAF12 catalyzes the non-degradative ubiquitination of TRiC/CCT subunits, enhancing chaperonin assembly and folding of cytoskeletal effectors (β-actin/tubulin) and oncogenic clients (STAT3/Raptor/mLST8), thereby activating the YAP, STAT3, and mTOR pathways. Both genetic knockdown and pharmacological blockade (via HSF1A) of this axis potently inhibit metastasis. Clinically, DCAF12 overexpression is correlated with YAP/STAT3 activation, advanced metastasis, and poor survival. Three key insights are revealed: 1) ubiquitination-mediated TRiC/CCT regulation as a metastatic switch, 2) DCAF12 as an oncogenic proteostasis hub, and 3) therapeutic potential validated through multimodal targeting. These findings establish the DCAF12-TRiC/CCT axis as a mechanistically novel target that simultaneously disrupts cytoskeletal dynamics and oncogenic signaling, making it a promising therapeutic strategy for metastatic lung cancer.
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