L-lactate metabolism can occur in normal and cancer prostate cells via the novel mitochondrial L-lactate dehydrogenase (Articolo in rivista)

Type
Label
  • L-lactate metabolism can occur in normal and cancer prostate cells via the novel mitochondrial L-lactate dehydrogenase (Articolo in rivista) (literal)
Anno
  • 2010-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.3892/ijo_00000815 (literal)
Alternative label
  • De Bari L; Chieppa G; Marra E; Passarella S (2010)
    L-lactate metabolism can occur in normal and cancer prostate cells via the novel mitochondrial L-lactate dehydrogenase
    in International journal of oncology
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • De Bari L; Chieppa G; Marra E; Passarella S (literal)
Pagina inizio
  • 1607 (literal)
Pagina fine
  • 1620 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 37 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR - Istituto di Biomembrane e Bioenergetica (IBBE), 70126 Bari; Univ. del Molise - Dipartimento di Scienze per la Salute, 86100 Campobasso. (literal)
Titolo
  • L-lactate metabolism can occur in normal and cancer prostate cells via the novel mitochondrial L-lactate dehydrogenase (literal)
Abstract
  • Both normal (PTN1A) and cancer (PC3) prostate cells produce high levels of L-lactate because of a low energy supply via the citric cycle and oxidative phosphorylation Since some mammalian mitochondria possess a mitochondrial L-lactate dehydrogenase (mLDH), we investigated whether prostate cells can take up L-lactate and metabolize it in the mitochondria We report here that externally added L-lactate can enter both normal and cancer cells and mitochondria, as shown by both the oxygen consumption and by the increase in fluorescence of NAD(P)H which occur as a result of L-lactate addition In both cell types L-lactate enters mitochondria in a carrier-mediated manner, as shown by the inhibition of swelling measurements due to the non-penetrant thiol reagent mersalyl An L-lactate dehydrogenase exists in mitochondria of both cell types located in the inner compartment, as shown by kinetic investigation and by immunological analysis The mLDHs proved to differ from the cytosolic enzymes (which themselves differ from one another) as functionally investigated with respect to kinetic features and pH profile Normal and cancer cells were found to differ from one another with respect to mLDH protein level and activity, being the enzyme more highly expressed and of higher activity in PC3 cells Moreover, the kinetic features and pH profiles of the PC3 mLDH also differ from those of the PNT1A enzyme, this suggesting the occurrence of separate isoenzymes. (literal)
Prodotto di
Autore CNR
Insieme di parole chiave

Incoming links:


Prodotto
Autore CNR di
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
Insieme di parole chiave di
data.CNR.it