Int J Med Sci 2020; 17(6):834-843. doi:10.7150/ijms.40959
Action of low doses of Aspirin in Inflammation and Oxidative Stress induced by aβ1-42 on Astrocytes in primary culture
1. Department of Physiology, School of Medicine, University of Valencia, Spain.
2. Faculty of Nursing and Podiatry, University of Valencia, Spain.
*These authors contributed equally to this work.
Jorda A, Aldasoro M, Aldasoro C, Guerra-Ojeda S, Iradi A, Vila JMª, Campos-Campos J, Valles SL. Action of low doses of Aspirin in Inflammation and Oxidative Stress induced by aβ1-42 on Astrocytes in primary culture. Int J Med Sci 2020; 17(6):834-843. doi:10.7150/ijms.40959. Available from http://www.medsci.org/v17p0834.htm
Aspirin has been used as anti-inflammatory and anti-aggregate for decades but the precise mechanism(s) of action after the presence of the toxic peptide Aβ1-42 in cultured astrocytes remains poorly resolved. Here we use low-doses of aspirin (10-7 M) in astrocytes in primary culture in presence or absence of Aβ1-42 toxic peptide. We noted an increase of cell viability and proliferation with or without Aβ1-42 peptide presence in aspirin treated cells. In addition, a decrease in apoptosis, determined by Caspase 3 activity and the expression of Cyt c and Smac/Diablo, were detected. Also, aspirin diminished necrosis process (LDH levels), pro-inflammatory mediators (IL-β and TNF-α) and NF-ᴋB protein expression, increasing anti-inflammatory PPAR-γ protein expression, preventing Aβ1-42 toxic effects. Aspirin inhibited COX-2 and iNOS without changes in COX-1 expression, increasing anti-oxidant protein (Cu/Zn-SOD and Mn-SOD) expression in presence or absence of Aβ1-42. Taken together, our results show that aspirin, at low doses increases cell viability by decreasing inflammation and oxidative stress, preventing the deleterious effects of the Aβ1-42 peptide on astrocytes in primary culture. The use of low doses of aspirin may be more suitable for Alzheimer's disease.
Keywords: Amyloid-β, aspirin, inflammation, oxidative stress, Alzheimer's disease