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XB-ART-15673
FEBS Lett 1997 Nov 24;4181-2:101-5.
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Cell cycle dependent toxicity of an amphiphilic synthetic peptide.

Pellegrin P , Menard C , Mery J , Lory P , Charnet P , Bennes R .


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The cytotoxic properties of an amphiphilic synthetic peptide are presented. Comparative analysis of proliferating, differentiated and confluent H9C2 adherent cells and L1210 cells in suspension shows a correlation between toxicity and cell stage (proliferating cells). Electrophysiological measurements on Xenopus laevis oocytes bathed in the peptide also demonstrated the induction of cationic currents, which is voltage and phosphate dependent. These results allow us to hypothesize that the observed toxicity is related to membrane hyperpolarization of proliferating cells at the G1/S cell cycle phase transition.

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