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Abstract Title:

Carnosol suppresses microglia cell inflammation and apoptosis through PI3K/AKT/mTOR signaling pathway.

Abstract Source:

Immunopharmacol Immunotoxicol. 2022 May 6:1-11. Epub 2022 May 6. PMID: 35521965

Abstract Author(s):

Yuhan Yan, Yu Liu, Yujiao Yang, Yi Ding, Xin Sun

Article Affiliation:

Yuhan Yan

Abstract:

Ischemic stroke is the most common type of acute cerebrovascular disease. Carnosol is a polyphenol compound extracted from rosemary. This study aimed to explore the effects of carnosol on the oxygen-glucose deprivation (OGD) treated BV2 microglia cells. MTT and EdU assays were used to detect the cell viability and proliferation. Flow cytometry was conducted to measure the apoptosis rates. Additionally, the protein expression was determined by western blot. The inflammatory factors and antioxidant indexes were detected by corresponding kits. Carnosol promoted the proliferation and inhibited the apoptosis of the OGD treated BV2 cells. What's more, the protein expressions of PCNA and Bcl-2 were up-regulated, the Bax expression was down-regulated after carnosol treatment. In addition, carnosol decreased the levels of MDA, LPO, TNF-α, IL-1β and IL-6, and increased the levels of GSH, SOD, IL-4 and IL-10 in the OGD treated BV2 cells. Furthermore, the PI3K/AKT/mTOR signaling pathway was activated after carnosol treatment and inhibition of the PI3K/AKT/mTOR signaling pathway reversed the carnosol effects. Carnosol promotes the proliferation, inhibits the apoptosis, relieves the oxidative damage and inflammation of OGD treated cells through regulating the PI3K/AKT/mTOR signaling pathway.

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