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<p>Identification of novel targets is critical for the effective management of HCC. UFMylation, a novel ubiquitin-like modification, plays an important role in various biological processes and disease progression. We found that WW domain binding protein 11 (WBP11) is enriched and predicts poor prognosis in HCC. Depletion of WBP11 inhibits the malignancy of HCC cells in vitro and in vivo. Mechanistically, the N-terminal of WBP11 interacts with the RNA recognition motif (RRM) domain of Non-POU-domain-containing octamer-binding protein (NONO) and enhances glycolysis in HCC cells. WBP11 maintains protein stability of NONO by competitively inhibiting UFM1-specific ligase 1 (UFL1)-induced UFMylation of NONO at Lys198. Enforced-NONO expression restores the suppression of growth and metastasis caused by WBP11 depletion or UFL1 overexpression. Overall, our study identifies a key role of the WBP11-NONO axis in HCC progression and reveals the importance of UFMylation in cancer, highlighting potential anticancer strategies by targeting the WBP11-regulated new types of posttranslational modifications.</p>

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WBP11 inhibits UFL1-mediated UFMylation of NONO to drive hepatocellular carcinoma progression

  • 期刊论文

  • 发表日期：

    2025年11月3日

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  • Hongbiao Huang,
  • Yujie Xiang,
  • Yuanfei Deng,
  • Qing Liu,
  • Gengxi Cai,
  • Qiucheng Lei,
  • Wenshuang Sun,
  • Shusha Yin,
  • Yuting Li,
  • E-ying Peng,
  • Yu Yao,
  • Leyi Yao,
  • Dacai Xu,
  • Zhenlong Shao,
  • Yuning Liao

摘要

Identification of novel targets is critical for the effective management of HCC. UFMylation, a novel ubiquitin-like modification, plays an important role in various biological processes and disease progression. We found that WW domain binding protein 11 (WBP11) is enriched and predicts poor prognosis in HCC. Depletion of WBP11 inhibits the malignancy of HCC cells in vitro and in vivo. Mechanistically, the N-terminal of WBP11 interacts with the RNA recognition motif (RRM) domain of Non-POU-domain-containing octamer-binding protein (NONO) and enhances glycolysis in HCC cells. WBP11 maintains protein stability of NONO by competitively inhibiting UFM1-specific ligase 1 (UFL1)-induced UFMylation of NONO at Lys198. Enforced-NONO expression restores the suppression of growth and metastasis caused by WBP11 depletion or UFL1 overexpression. Overall, our study identifies a key role of the WBP11-NONO axis in HCC progression and reveals the importance of UFMylation in cancer, highlighting potential anticancer strategies by targeting the WBP11-regulated new types of posttranslational modifications.