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Human Gyrovirus-Apoptin Interferes with the Cell Cycle and Induces G2/M Arrest Prior to Apoptosis

Wiem Chaabane1, Saeid Ghavami2,3, Andrzej Małecki4

  • 1Department of Biology, Faculty of Sciences, Tunis University, 2092, Tunis, Tunisia. wiemchaabane27@hotmail.fr.

Archivum Immunologiae Et Therapiae Experimentalis
|April 8, 2017
PubMed

Insights

Human gyrovirus-Apoptin (HGyv-Apoptin) selectively targets cancer cells, inducing cell cycle arrest. This protein shows potential as a cancer therapeutic by disrupting cell division similarly to chicken anemia virus Apoptin.

Area of Science:

  • Molecular biology
  • Virology
  • Cancer research

Background:

  • Human gyrovirus-Apoptin (HGyv-Apoptin) exhibits selective cytotoxicity towards cancer cells.
  • Apoptin proteins are known for their anti-cancer properties.

Purpose of the Study:

  • To investigate the effect of HGyv-Apoptin on cancer cell cycle progression.
  • To compare HGyv-Apoptin's mechanism with chicken anemia virus Apoptin (CAV-Apoptin).

Main Methods:

  • Cell cycle analysis of cancer cells treated with HGyv-Apoptin.
  • Microscopic examination of mitotic spindle formation.
  • Analysis of cyclin B1 expression.

Main Results:

  • HGyv-Apoptin induces G2/M cell cycle arrest in cancer cells.
  • Abnormal spindle formation and impaired mitotic progression were observed.
  • HGyv-Apoptin likely inhibits APC function, leading to sustained cyclin B1 expression.

Conclusions:

  • HGyv-Apoptin shares a similar mechanism of action with CAV-Apoptin.
  • These findings support the potential of HGyv-Apoptin as a cancer therapeutic agent.
Keywords:
APCApoptinCell cycleCyclin B1PKTCs

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