http://www.cnr.it/ontology/cnr/individuo/prodotto/ID17628
Mitochondrial oxygen consumption inhibition importance for TMT-dependent cell death in undifferentiated PC12 cells (Articolo in rivista)
- Type
- Label
- Mitochondrial oxygen consumption inhibition importance for TMT-dependent cell death in undifferentiated PC12 cells (Articolo in rivista) (literal)
- Anno
- 2008-01-01T00:00:00+01:00 (literal)
- Alternative label
Misiti F., Orsini F., Clementi A.E., Lattanzi W., Giardina B., Michetti F. (2008)
Mitochondrial oxygen consumption inhibition importance for TMT-dependent cell death in undifferentiated PC12 cells
in Neurochemistry international
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Misiti F., Orsini F., Clementi A.E., Lattanzi W., Giardina B., Michetti F. (literal)
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- Pagina fine
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- ISI Web of Science (WOS) (literal)
- PubMed (literal)
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- a Department of Health and Motor Sciences, University of Cassino, Viale Bonomi, 03043 Cassino (FR), Italy
b Institute of Biochemistry and Clinical Biochemistry, Catholic University, Largo F. Vito 1, 00168 Rome, Italy
c CNR, Istituto di Chimica del Riconoscimento Molecolare (ICRM), Largo F. Vito 1, 00168 Rome, Italy
d Institute of Anatomy and Cell Biology, Catholic University, Largo F. Vito 1, 00168 Rome, Italy (literal)
- Titolo
- Mitochondrial oxygen consumption inhibition importance for TMT-dependent cell death in undifferentiated PC12 cells (literal)
- Abstract
- The evolving role of mitochondria as a target for different death-inducing noxae prompted us to investigate trimethyltin (TMT)-dependent effects on mitochondrial functionality. For this purpose, we used a homogeneous cell culture model represented by undifferentiated PC12 cells. Mitochondria isolated from PC 12 cells treated with TMT for 6, 12 and 24 h, showed a time-dependent inhibition of ADP-stimulated oxygen consumption using succinate or glutamate/malate as substrate. Using a fluorescent assay, the effect of TMT on mitochondrial membrane potential (Delta Psi) in PC12 cells was also determined. After 24 h in culture, a strong loss of mitochondrial membrane potential (Delta Psi) was observed in TMT-treated cells. Collapse of mitochondrial membrane potential correlated with an increased expression of bax/bcl-2 ratio, as evaluated by polymerase chain reaction. Western blotting and spectrophotometric analysis showed that cytochrome c release and activation of caspase 3 were concurrently induced. Our findings suggest that inhibition of mitochondrial respiration represents the early toxic event for cell death in PC12 due to trimethyltin. (literal)
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- Autore CNR
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