Oxidative stress and mitochondrial membrane potential are involved in the cytotoxicity of perfluorododecanoic acid to neurons.
Toxicol Ind Health
; 36(11): 892-897, 2020 Nov.
Article
in En
| MEDLINE
| ID: mdl-32955411
ABSTRACT
Perfluorododecanoic acid (PFDoA), used in numerous commercial products, was recently demonstrated to accumulate in the brain more easily than other perfluorinated compounds and to cause cognitive deficits. In this study, pheochromocytoma 12 (PC12) cells were exposed to doses of PFDoA to explore the cytotoxicity of this compound to neurons. The results showed that treatment with PFDoA decreased PC12 cell viability dose-dependently. Treatment with 50 and 100 µM PFDoA significantly increased reactive oxygen species (p < 0.01) and malondialdehyde (p < 0.01) and decreased total antioxidant capacity (p < 0.05 and p < 0.01, respectively) in PC12 cells. The administration of 50 and 100 µM PFDoA led to a loss of mitochondrial membrane potential (MMP) (p < 0.05 and p < 0.01, respectively) in PC12 cells. The activity of caspase 3 was obviously increased (p < 0.05) in 100 µM PFDoA-treated PC12 cells. In general, the results demonstrated that PFDoA exposure could result in the disruption of MMP, which may contribute to the increase of oxidative stress and activation of the apoptotic signaling cascade in PC12 cells.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Oxidative Stress
/
Membrane Potential, Mitochondrial
/
Lauric Acids
/
Neurons
Limits:
Animals
Language:
En
Journal:
Toxicol Ind Health
Journal subject:
MEDICINA OCUPACIONAL
/
TOXICOLOGIA
Year:
2020
Document type:
Article