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Detection of Aggregation-Prone Behavior in Mutant P53 V157F Breast Cancer Cells Using Multipoint Thioflavin T Fluorescence

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Homeobox protein VentX induces p53-independent apoptosis in cancer cells

Hong Gao1,2, Bin Wu1,3, Yi Le1

  • 1Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, 02115, Massachusetts, USA.

Oncotarget
|May 14, 2016
PubMed

Insights

VentX, a novel tumor suppressor, inhibits cancer cell proliferation and survival. It induces cancer cell apoptosis independently of p53 and may be a new therapeutic target.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cancer Research

Background:

  • Identifying novel tumor suppressors is crucial for advancing cancer therapies.
  • VentX, a homeobox transcriptional factor, was recently identified as a potential tumor suppressor.

Purpose of the Study:

  • To investigate the role of VentX as a tumor suppressor in cancer cells.
  • To elucidate the mechanism by which VentX affects cancer cell proliferation and survival.

Main Methods:

  • In vitro and in vivo experiments were conducted.
  • Cancer cell proliferation, survival, and apoptosis were assessed.
  • The effect of VentX on primary transformed cells was evaluated.
  • VentX expression induction by chemotherapeutic agents was examined.

Main Results:

  • VentX significantly inhibited proliferation and survival of cancer cells, but not primary transformed cells (e.g., 293T).
  • VentX was found to induce apoptosis in cancer cells through a p53-independent pathway.
  • Chemotherapeutic agents were shown to induce VentX expression.

Conclusions:

  • VentX functions as a potent tumor suppressor by inducing cancer cell apoptosis.
  • VentX's p53-independent mechanism and inducibility by chemotherapy highlight its therapeutic potential.
  • VentX represents a promising novel therapeutic target for cancer treatment.
Keywords:
PARPapoptosiscaspase-3p53ventX

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