Cisplatin cytotoxicity: DNA and plasma membrane targets

Amélie Rebillard1, Dominique Lagadic-Gossmann, Marie-Thérèse Dimanche-Boitrel

  • 1INSERM UMR 620, IFR 140 GFAS, and University of Rennes 1, Rennes, France. amelie.rebillard@uhb.fr

Current Medicinal Chemistry
|November 11, 2008
PubMed

Insights

Cisplatin triggers cancer cell death via plasma membrane changes, not just DNA damage. This review explores how membrane fluidity, NHE1 inhibition, and acid sphingomyelinase activation impact the Fas pathway in cisplatin-induced apoptosis.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Pharmacology

Background:

  • Apoptosis is a key mechanism in cancer therapy, but its pathways are not fully understood.
  • DNA-damaging agents often induce apoptosis via mitochondrial pathways, but some, like cisplatin, utilize plasma membrane disruption.
  • The Fas death receptor pathway is implicated in cisplatin-induced apoptosis.

Purpose of the Study:

  • To review the early plasma membrane events involved in cisplatin-induced apoptosis.
  • To highlight the role of plasma membrane alterations in triggering the Fas death pathway.

Main Methods:

  • Literature review focusing on biochemical and cellular mechanisms.
  • Analysis of studies investigating plasma membrane properties and signaling pathways.

Main Results:

  • Cisplatin induces apoptosis through mechanisms involving plasma membrane disruption.
  • Key early events include altered plasma membrane fluidity, inhibition of the NHE1 exchanger, and activation of acid sphingomyelinase.
  • These events are linked to the activation of the Fas death pathway.

Conclusions:

  • Early plasma membrane events are critical in cisplatin-induced apoptosis.
  • Understanding these membrane-associated pathways can offer new therapeutic strategies for cancer treatment.

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