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Published on: May 14, 2016
Role of early plasma membrane events in chemotherapy-induced cell death
Marie-Thérèse Dimanche-Boitrel1, Olivier Meurette, Amélie Rebillard
1INSERM U620, Faculty of Pharmacy, Université Rennes 1, 2 Av du Pr Léon Bernard, 35043 Rennes, France. marie-therese.boitrel@rennes.inserm.fr
Abstract:
Most current anticancer therapies induce tumor cell death through the induction of apoptosis. However, the pathways leading to cell death are not always understood. For example, for several DNA-damaging agents the specific biochemical lesions (DNA damage) have been associated with the induction of apoptosis. However, several of these DNA-damaging agents (cisplatin, 1-beta-arabinofuranosylcytosine, daunorubicin or doxorubicin) as well as other antitumor agents, such as edelfosine or resveratrol, have been recently shown to induce apoptosis via signaling through plasma membrane lipid rafts involving the death receptor pathway. In this review we focus on the role of early plasma membrane events in chemotherapy-induced cell death. Special attention is given to changes in plasma membrane fluidity, activation of the acid sphingomyelinase and the Fas death pathway in response to chemotherapy as well as their possible interrelationships.
Insights
Chemotherapy can trigger cancer cell death through plasma membrane lipid rafts and the Fas death pathway. This review explores early membrane events, including fluidity changes and acid sphingomyelinase activation, in chemotherapy-induced apoptosis.
Area of Science:
- Biochemistry
- Cell Biology
- Oncology
Background:
- Current anticancer therapies primarily induce apoptosis, a programmed cell death pathway.
- The precise molecular mechanisms underlying chemotherapy-induced apoptosis are not fully elucidated.
- DNA-damaging agents and other antitumor drugs can initiate apoptosis through novel pathways.
Purpose of the Study:
- To review the role of early plasma membrane events in chemotherapy-induced cell death.
- To highlight the involvement of plasma membrane lipid rafts and the death receptor pathway.
- To explore the interrelationships between plasma membrane changes and apoptosis induction.
Main Methods:
- Literature review focusing on chemotherapy mechanisms.
- Analysis of studies investigating plasma membrane alterations.
- Examination of signaling pathways involved in chemotherapy response.
Main Results:
- Chemotherapy agents can induce apoptosis via signaling through plasma membrane lipid rafts.
- Early plasma membrane events, including altered fluidity and acid sphingomyelinase activation, are critical.
- The Fas death pathway is implicated in chemotherapy-induced cell death signaling.
Conclusions:
- Plasma membrane dynamics play a crucial role in mediating chemotherapy's cytotoxic effects.
- Targeting early plasma membrane events may offer novel therapeutic strategies.
- Understanding these pathways is essential for optimizing anticancer treatments.
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