Wilasinee Saisorn, Pornpimol Phuengmaung, Jiraphorn Issara-Amphorn, Jiradej Makjaroen, Peerapat Visitchanakun, Kritsanawan Sae-Khow, Atsadang Boonmee, Salisa Benjaskulluecha, Aleksandra Nita-Lazar, Tanapat Palaga, Asada Leelahavanichkul
Despite the known influence of DNA methylation from lipopolysaccharide (LPS) activation, data on the O6-methylguanine-DNA methyltransferase (MGMT, a DNA suicide repair enzyme) in macrophages is still lacking. The transcriptomic profiling of epigenetic enzymes from wild-type macrophages after single and double LPS stimulation, representing acute inflammation and LPS tolerance, respectively, was performed. Small interfering RNA (siRNA) silencing of mgmt in the macrophage cell line (RAW264.7) and mgmt null ( mgmt flox/flox ; LysM-Crecre/- ) macrophages demonstrated lower secretion of TNF-α and IL-6 and lower expression of pro-inflammatory genes ( iNOS and IL-1β ) compared with the control...
June 14, 2023: International Journal of Molecular Sciences