Inhibitory Effect of 3,4,5-Tricaffeoylquinic Acid on Parkinsonian Toxin 1-Methyl-4-phenylpyridinium-induced Apoptosis
Journal of the Korean Neurological Association
;
: 72-81, 2014.
Article
Dans Coréen
| WPRIM
| ID: wpr-91991
ABSTRACT
BACKGROUND:
1-Methyl-4-phenylpyridinium (MPP+) causes a neuronal cell injury that is similar to the findings observed in Parkinson's disease. Caffeoylquinic acid derivatives have demonstrated anti-oxidant and anti-inflammatory effects. Nevertheless, the effect of 3,4,5-tricaffeoylquinic acid (3,4,5-triCQA) on the neuronal cell death due to exposure of parkinsonian toxin MPP+ remains unclear.METHODS:
Using differentiated PC12 cells, the preventive effect of 3,4,5-triCQA on the MPP+-induced cell death in relation to apoptotic process was examined.RESULTS:
MPP+ induced a decrease in Bid, Bcl-2 and survivin protein levels, increase in Bax levels, loss of the mitochondrial transmembrane potential, cytochrome c release, activation of caspases (-8, -9 and -3), cleavage of PARP-1, and an increase in the tumor suppressor p53 levels. 3,4,5-Tricaffeoylquinic acid attenuated the MPP+-induced changes in the apoptosis-related protein levels, formation of reactive oxygen species, depletion of GSH, nuclear damage and cell death. 3,4,5-Tricaffeoylquinic acid attenuated another parkinsonian neurotoxin rotenone-induced cell death.CONCLUSIONS:
3,4,5-Tricaffeoylquinic acid may attenuate the MPP+-induced apoptosis in PC12 cells by suppressing the activation of the mitochondrial pathway and the caspase-8- and Bid-dependent pathways. The preventive effect seems to be ascribed to its inhibitory effect on the formation of reactive oxygen species and depletion of GSH.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Maladie de Parkinson
/
1-Méthyl-4-phényl-pyridinium
/
Cellules PC12
/
Mort cellulaire
/
Espèces réactives de l'oxygène
/
Apoptose
/
Caspases
/
Cytochromes c
/
Potentiels de membrane
/
Neurones
Limites du sujet:
Animaux
langue:
Coréen
Texte intégral:
Journal of the Korean Neurological Association
Année:
2014
Type:
Article
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