Ceramide Induces Release of Pro-Apoptotic Proteins from Mitochondria by Either a Ca2+-Dependent or a Ca2+-Independent Mechanism (Articolo in rivista)

Type
Label
  • Ceramide Induces Release of Pro-Apoptotic Proteins from Mitochondria by Either a Ca2+-Dependent or a Ca2+-Independent Mechanism (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Alternative label
  • Di Paola M.; Zaccagnino P.; Montedoro G.; Cocco T.; Lorusso M. (2004)
    Ceramide Induces Release of Pro-Apoptotic Proteins from Mitochondria by Either a Ca2+-Dependent or a Ca2+-Independent Mechanism
    in Journal of bioenergetics and biomembranes
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Di Paola M.; Zaccagnino P.; Montedoro G.; Cocco T.; Lorusso M. (literal)
Pagina inizio
  • 165 (literal)
Pagina fine
  • 170 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 36 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Institute of Biomembranes and Bioenergetics, CNR, Bari, Italy; Department of Medical Biochemistry and Biology, University of Bari, Bari, Italy (literal)
Titolo
  • Ceramide Induces Release of Pro-Apoptotic Proteins from Mitochondria by Either a Ca2+-Dependent or a Ca2+-Independent Mechanism (literal)
Abstract
  • Several observations have been reported in the last years indicating that ceramide may activate the mitochondrial route of apoptosis. We show here that on addition of either C2- or C16-ceramide to mitochondria isolated from rat heart and suspended in a saline medium, release of cytochrome c and apoptosis-inducing factor (AIF) from the intermembrane space takes place. The release process is Ca2+-independent and is not inhibited by Cyclosporin A (CsA). For the protein release process to occur, the presence of an oxidizable substrate is required. When mitochondria are suspended in sucrose instead of potassium medium, only short chain C2-ceramide causes cytochrome c release through a Ca2+-dependent and CsA sensitive mitochondrial permeability transition (MPT) mechanism. The latter effect appears to be related to the membrane potential dissipating ability exhibited by short chain C2-ceramide. (literal)
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