Vascular endothelial growth factor suppresses dendritic cells function of human prostate cancer

Wen-Kun Bai1, Wei Zhang1, Bing Hu1

  • 1Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated 6th People's Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, China.

Abstract

Insights

Vascular endothelial growth factor (VEGF) inhibits dendritic cell (DC) function in prostate cancer (PCa). This inhibition worsens with increasing PCa malignancy, impairing anti-tumor immunity.

Area of Science:

  • Immunology
  • Oncology
  • Cell Biology

Background:

  • Prostate cancer (PCa) is associated with impaired dendritic cell (DC) function.
  • The underlying mechanisms for these DC defects in PCa remain unclear.

Purpose of the Study:

  • To investigate the role of vascular endothelial growth factor (VEGF) in the function of mature dendritic cells (DCs) within the context of prostate cancer.

Main Methods:

  • Comparative analysis of peripheral blood T cells, prostate tissue dendritic cells (composition and function), and local VEGF density.
  • Study included patients with PCa, prostatic intraepithelial neoplasia (PIN), and benign prostatic hyperplasia (BPH).

Main Results:

  • PCa patients exhibited reduced numbers of total, mature, and functional DCs, along with decreased CD4+ T cells.
  • VEGF-positive cell infiltration increased with higher PCa malignancy.
  • Inhibition of DC function was identified as a mechanism for suppressed anti-tumor immunity in PCa.

Conclusions:

  • VEGF significantly inhibits dendritic cell maturation and function.
  • The inhibitory effect of VEGF on DCs intensifies with increasing prostate cancer malignancy.

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