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A high-valence bismuth(V) nanoplatform triggers cancer cell death and anti-tumor immune responses with exogenous excitation-free endogenous H2O2- and O2-independent ROS generation

Author

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  • Yizhang Tang

    (State Key Lab of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University 800 Dongchuan Road
    Future Material Innovation Center Zhangjiang Institute for Advanced Study Shanghai Jiao Tong University 429 Zhangheng Road)

  • Xujiang Yu

    (State Key Lab of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University 800 Dongchuan Road
    Future Material Innovation Center Zhangjiang Institute for Advanced Study Shanghai Jiao Tong University 429 Zhangheng Road)

  • Liangrui He

    (State Key Lab of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University 800 Dongchuan Road)

  • Meng Tang

    (Department of Comprehensive Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College 17 Panjiayuan South Lane)

  • Wenji Yue

    (State Key Lab of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University 800 Dongchuan Road)

  • Ruitong Chen

    (State Key Lab of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University 800 Dongchuan Road)

  • Jie Zhao

    (State Key Lab of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University 800 Dongchuan Road)

  • Qi Pan

    (Department of Urology Shanghai General Hospital Shanghai Jiao Tong University School of Medicine 85 Wujin Road)

  • Wanwan Li

    (State Key Lab of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University 800 Dongchuan Road
    Future Material Innovation Center Zhangjiang Institute for Advanced Study Shanghai Jiao Tong University 429 Zhangheng Road)

Abstract

Reactive oxygen species with evoked immunotherapy holds tremendous promise for cancer treatment but has limitations due to its dependence on exogenous excitation and/or endogenous H2O2 and O2. Here we report a versatile oxidizing pentavalent bismuth(V) nanoplatform (NaBiVO3-PEG) can generate reactive oxygen species in an excitation-free and H2O2- and O2-independent manner. Upon exposure to the tumor microenvironment, NaBiVO3-PEG undergoes continuous H+-accelerated hydrolysis with •OH and 1O2 generation through electron transfer-mediated BiV-to-BiIII conversion and lattice oxygen transformation. The simultaneous release of sodium counterions after endocytosis triggers caspase-1-mediated pyroptosis. NaBiVO3-PEG intratumorally administered initiates robust therapeutic efficacies against both primary and distant tumors and activates systemic immune responses to combat tumor metastasis. NaBiVO3-PEG intravenously administered can efficiently accumulate at the tumor site for further real-time computed tomography monitoring, immunotherapy, or alternative synergistic immune-radiotherapy. Overall, this work offers a nanomedicine based on high-valence bismuth(V) nanoplatform and underscores its great potential for cancer immunotherapy.

Suggested Citation

  • Yizhang Tang & Xujiang Yu & Liangrui He & Meng Tang & Wenji Yue & Ruitong Chen & Jie Zhao & Qi Pan & Wanwan Li, 2025. "A high-valence bismuth(V) nanoplatform triggers cancer cell death and anti-tumor immune responses with exogenous excitation-free endogenous H2O2- and O2-independent ROS generation," Nature Communications, Nature, vol. 16(1), pages 1-19, December.
  • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-56110-7
    DOI: 10.1038/s41467-025-56110-7
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    References listed on IDEAS

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