DPPA inhibits melanoma by targeting angiogenesis through activating autocrine IFN-γ-CXCL9/10/11-CXCR3 axis in

Zelong Wang1, Zibei Feng1, Chunhui Huang1

  • 1School of Basic Medical Sciences, Guangdong Pharmaceutical University, Guangzhou, China.

Iscience
|June 17, 2026
PubMed

Insights

Dipalmitoylphosphatidic acid (DPPA) effectively suppresses malignant melanoma growth and metastasis by inhibiting tumor angiogenesis. This novel approach offers a promising alternative to existing therapies with fewer side effects.

Area of Science:

  • Oncology
  • Immunology
  • Molecular Biology

Background:

  • Antiangiogenic therapy is a key strategy for malignant melanoma (MM).
  • Bevacizumab, a VEGF inhibitor, has significant side effects.
  • Novel antiangiogenic agents are needed for MM treatment.

Purpose of the Study:

  • To investigate the antiangiogenic potential of Dipalmitoylphosphatidic acid (DPPA) in malignant melanoma.
  • To elucidate the mechanism by which DPPA affects MM tumor development.

Main Methods:

  • In vitro and in vivo models of malignant melanoma.
  • Assessment of tumor growth, metastasis, and angiogenesis.
  • Analysis of signaling pathways including interferon gamma (IFN-γ) and CXCL9/10/11-CXCR3.

Main Results:

  • DPPA significantly suppressed MM tumor growth and metastasis.
  • DPPA inhibited tumor angiogenesis but not cell proliferation or invasion.
  • DPPA's mechanism involves regulating IFN-γ and CXCL9/10/11-CXCR3 signaling.

Conclusions:

  • DPPA demonstrates potent antiangiogenic activity in malignant melanoma.
  • DPPA represents a potential novel therapeutic agent for MM.
  • DPPA's mechanism of action provides insights into antiangiogenic strategies.

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