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Updated: Dec 10, 2025

Analysis of Cell Cycle Position in Mammalian Cells
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Canine parvovirus induces G1/S cell cycle arrest that involves EGFR Tyr1086 phosphorylation

Xiaofeng Dai1,2, Xuanhao Zhang3, Yujie Miao

  • 1Wuxi School of Medicine, Jiangnan University , Wuxi, China.

Virulence
|September 3, 2020
PubMed

Insights

Canine parvovirus (CPV) causes cancer cell cycle arrest via EGFR signaling, hindering cancer therapy. Understanding this mechanism helps improve oncolytic virus design for better cancer control.

Area of Science:

  • Oncology
  • Virology
  • Molecular Biology

Background:

  • Canine parvovirus (CPV) shows promise as an oncolytic agent and drug delivery system.
  • CPV-induced cell cycle arrest in cancer cells poses a challenge to virotherapy efficacy.
  • Understanding CPV's interaction with host cell machinery is crucial for optimizing cancer treatment.

Purpose of the Study:

  • To investigate the mechanism of CPV-induced G1/S cell cycle arrest in host cancer cells.
  • To explore the role of epidermal growth factor receptor (EGFR) in CPV-mediated cell cycle modulation.
  • To inform the design of improved CPV-based cancer therapies.

Main Methods:

  • Analysis of CPV infection effects on host cell cycle progression.
  • Investigating tyrosine phosphorylation sites on EGFR following CPV infection.
  • Examining the EGFR (Y1086)/p27 and EGFR (Y1068)/STAT3/cyclin D1 signaling pathways.
  • Assessing the impact of EGFR inhibitors on CPV-induced cell cycle arrest.

Main Results:

  • CPV infection triggers a G1/S cell cycle arrest in host cancer cells.
  • The cell cycle arrest is mediated through specific EGFR phosphorylation sites and downstream signaling pathways (EGFR (Y1086)/p27 and EGFR (Y1068)/STAT3/cyclin D1).
  • EGFR inhibitors were unable to reverse the CPV-induced cell cycle arrest.

Conclusions:

  • CPV actively manipulates host cell cycle regulation via EGFR signaling.
  • The identified pathways provide mechanistic insight into CPV's anti-cancer effects and limitations.
  • This knowledge can guide the development of oncolytic virotherapies that overcome cell cycle arrest for enhanced cancer treatment.
Keywords:
Canine parvovirusEGFRcell cycle arrestvirotherapy

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