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Elastin peptides antagonize ceramide‐induced apoptosis
Author(s) -
Cantarelli Benoît,
Duca Laurent,
Blanchevoye Charlotte,
Poitevin Stéphane,
Martiny Laurent,
Debelle Laurent
Publication year - 2009
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/j.febslet.2009.06.037
Subject(s) - elastin , ceramide , apoptosis , chemistry , microbiology and biotechnology , peptide , protease , lipid signaling , biochemistry , biology , receptor , enzyme , genetics
Elastin peptides regulate proliferation, chemotaxis and protease expression. The aim of this work was to assess their influence on apoptosis. Human skin fibroblast cell death was induced using C 2 ‐ceramide in the presence or absence of elastin peptides. We show that ceramide‐induced apoptosis could be blocked by elastin peptides. Using pharmacological inhibitors, we show that elastin peptide treatment leads to activation of the anti‐apoptotic protein Akt that phosphorylates the pro‐apoptotic protein Bad, the Foxo3a transcription factor and caspase‐9. Importantly, the anti‐apoptotic effects of elastin peptides were persistent in time. Our results suggest that elastin peptides could be potent cell survival factors.