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Updated: May 15, 2026

Fluorescence-based Monitoring of PAD4 Activity via a Pro-fluorescence Substrate Analog
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Published on: November 5, 2014

Platelet factor-4 (CXCL4/PF-4): an angiostatic chemokine for cancer therapy

Zhe Wang1, He Huang

  • 1Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 30072, China.

Cancer Letters
|January 23, 2013
PubMed

Insights

Platelet factor-4 (CXCL4/PF-4) inhibits blood vessel formation, a key process in tumor growth. This review explores its anti-angiogenic mechanisms, highlighting its potential as an anti-cancer therapy.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Oncology

Background:

  • Platelet factor-4 (CXCL4/PF-4) is a chemokine with diverse biological roles.
  • CXCL4/PF-4 exhibits anti-angiogenic properties by inhibiting endothelial cell proliferation and migration.
  • Angiogenesis is crucial for tumor growth and metastasis, making it a therapeutic target.

Purpose of the Study:

  • To review the mechanisms underlying the angiostatic activity of CXCL4/PF-4.
  • To explore the potential of CXCL4/PF-4 as a clinical anti-tumor agent.

Main Methods:

  • Review of existing literature on CXCL4/PF-4's biological functions.
  • Analysis of molecular interactions and cellular processes affected by CXCL4/PF-4.
  • Examination of in vitro and in vivo studies on CXCL4/PF-4 and its derivatives.

Main Results:

  • CXCL4/PF-4 interferes with angiogenic growth factors like bFGF-2 and VEGF165.
  • Activation of the CXCR3B receptor is involved in CXCL4/PF-4's anti-angiogenic effects.
  • CXCL4/PF-4 interacts with integrins and affects the cell cycle.
  • CXCL4/PF-4 and its derivatives show angiostatic and anti-tumoral activities in various models.

Conclusions:

  • CXCL4/PF-4 possesses multiple mechanisms for suppressing angiogenesis.
  • Its anti-angiogenic and anti-tumoral properties position it as a promising candidate for cancer therapy.

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