Aspirin may influence cellular energy status
Abbreviated Journal Title
Eur. J. Pharmacol.
ASA; Fatty acid oxidation; H2O2; Mitochondrial transcription factor A; MITOCHONDRIAL BIOGENESIS; MECHANISM; DISEASES; INHIBITION; METABOLISM; EXPRESSION; SIRTUINS; TARGETS; GENES; SIRT1; Pharmacology & Pharmacy
In our previous findings, we have demonstrated that aspirin/acetyl salicylic acid (ASA) might induce sirtuins via aryl hydrocarbon receptor (Ah receptor). Induction effects included an increase in cellular paraoxonase 1 (PON1) activity and apolipoprotein A1 (ApoA1) gene expression. As predicted, ASA and salicylic acid (SA) treatment resulted in generation of H2O2, which is known to be an inducer of mitochondrial gene Sirt4 and other downstream target genes of Sirtl. Our current mass spectroscopic studies further confirm the metabolism of the drugs ASA and SA. Our studies show that HepG2 cells readily converted ASA to SA, which was then metabolized to 2,3-DHBA. HepG2 cells transfected with aryl hydrocarbon receptor siRNA upon treatment with SA showed the absence of a DHBA peak as measured by LC-MS/MS. MS studies for Sirtl action also showed a peak at 180.9 m/z for the deacetylated and chlorinated product formed from N-acetyl L epsilon-lysine, Thus an increase in Sirt4, Nrf2, Tfam, UCP1, eNOS, HO1 and STAT3 genes could profoundly affect mitochondrial function, cholesterol homeostasis, and fatty acid oxidation, suggesting that ASA could be beneficial beyond simply its ability to inhibit cyclooxygenase. (C) 2014 Elsevier B.V All rights reserved.
European Journal of Pharmacology
"Aspirin may influence cellular energy status" (2015). Faculty Bibliography 2010s. 6615.