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Cancer research

Researchers Identify Key Mechanism Driving Liver Cancer Bone Metastasis

Strategic Insights

— 1 min read

Researchers at Tongji University in Shanghai, People's Republic of China, have discovered a crucial mechanism driving hepatocellular carcinoma (HCC) bone metastasis, characterized by poor prognosis and severe skeletal complications. The study identifies the HMGB1/LCN2/JAK1/STAT3 axis as the central mechanism driving HCC bone metastasis through tumor-osteoclast crosstalk. The researchers found that modulating the HMGB1/LCN2/JAK1/STAT3 axis regulates osteoclast activity, tumor growth, and bone destruction in vitro and in vivo.

Key Takeaways:

  • The HMGB1/LCN2/JAK1/STAT3 axis is the central mechanism driving HCC bone metastasis, promoting tumor-osteoclast crosstalk.
  • High-mobility group box 1 (HMGB1) induces osteoclast activation and differentiation, promoting lipocalin-2 (LCN2) secretion by osteoclasts, which activates the JAK1/STAT3 pathway in HCC cells.
  • Integrated single-cell and bulk RNA sequencing reveal enriched osteoclast-related and pro-metastatic pathways in the tumor-bone microenvironment.
  • Functional assays involving knockdown and overexpression demonstrate that modulating the HMGB1/LCN2/JAK1/STAT3 axis regulates osteoclast activity, tumor growth, and bone destruction in vitro and in vivo.
  • The research suggests the HMGB1/LCN2/JAK1/STAT3 axis as a potential therapeutic target, offering a strategy to reduce skeletal damage and systemic tumor progression.
  • The study was conducted at Tongji University, with researchers Di Xu, Yan-Zhu Chen, Ya-Xun Jia, Jie Ma, and Zuo-Lin Xiang contributing to the findings.

Statistics:

  • 712: The issue number on which the study was published in Cell Death & Disease.
  • 1: The volume number on which the study was published in Cell Death & Disease.
  • 16: The year in which the study was published in Cell Death & Disease.
  • 4 Crinan St: The address of the publisher, Springernature, in London, England.
  • N1 9XW: The postal code of the publisher, Springernature, in London, England.
  • 2025: The year in which the study was conducted and published.

Sources:

  • HMGB1 orchestrates tumor-osteoclast crosstalk to drive bone metastasis in hepatocellular carcinoma. Cell Death & Disease, 2025;16(1):712.
  • Springernature, Campus, 4 Crinan St, London, N1 9XW, England.
  • Di Xu, Dept. of Radiation Oncology, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People's Republic of China.

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