Bid Participates in Genotoxic Drug-Induced Apoptosis of HeLa Cells and Is Essential for Death Receptor Ligands' Apoptotic and Synergistic Effects
2008

Bid's Role in Apoptosis of HeLa Cells

publication Evidence: high

Author Information

Author(s): Köhler Barbara, Anguissola Sergio, Concannon Caoimhin G., Rehm Markus, Kögel Donat, Prehn Jochen H. M.

Primary Institution: Royal College of Surgeons in Ireland

Hypothesis

Bid is a central mediator of stress-induced apoptosis.

Conclusion

Bid is essential for death receptor-induced cell death and participates in anti-cancer drug-induced apoptosis in HeLa cells.

Supporting Evidence

  • Bid-deficient HeLa cells showed reduced apoptosis in response to death receptor activation.
  • Knockdown of Bid increased clonogenic survival after treatment with TRAIL and Fas.
  • Bid is not required for ER stress-induced apoptosis but is essential for the synergistic effects of TRAIL and ER stressors.

Takeaway

Bid is like a switch that helps cells die when they are supposed to, especially when they are stressed or treated with cancer drugs.

Methodology

The study involved generating HeLa cells deficient in Bid and testing their response to various apoptosis-inducing stimuli.

Limitations

The study primarily focused on HeLa cells, which may not fully represent other cell types.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0002844

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