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http://asiair.asia.edu.tw/ir/handle/310904400/115349
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| Title: | Suppressive Effect of Tetrahydrocurcumin on Pseudomonas aeruginosa Lipopolysaccharide-Induced Inflammation by Suppressing JAK/STAT and Nrf2/HO-1 Pathways in Microglial Cells |
| Authors: | 林惠雯;Lin, Hui-Wen;Che, Tzu-Chun;Chen, Tzu-Chun;Ye, Jui-Hsuan;Yeh, Jui-Hsuan;Shang-Chun, T;Tsou, Shang-Chun;Wang, Inga;Wang, Inga;Sh, Ting-Jing;Shen, Ting-Jing;Chua, Chen-Ju;Chuang, Chen-Ju;Cha, Yuan-Yen;Chang, Yuan-Yen |
| Contributors: | 醫學暨健康學院視光學系 |
| Date: | 2022-3-1 |
| Issue Date: | 2023-03-29 01:31:29 (UTC+0) |
| Publisher: | 亞洲大學 |
| Abstract: | Brain inflammation, a pathological feature of neurodegenerative disorders, exhibits elevated microglial activity and increased levels of inflammatory factors. The present study was aimed at assessing the anti-inflammatory response of tetrahydrocurcumin (THC), the primary hydrogenated metabolite of curcumin, which was applied to treat Pseudomonas aeruginosa (P.a.) lipopolysaccharide- (LPS-) stimulated BV2 microglial cells. THC reduced P.a. LPS–induced mortality and the production of inflammatory mediators IL-6, TNF-α, MIP-2, IP-10, and nitrite. A further investigation revealed that THC decreased these inflammatory cytokines synergistically with JAK/STAT signaling inhibitors. THC also increased Nrf2/HO-1 signaling transduction which inhibits iNOS/COX-2/pNFκB cascades. Additionally, the presence of the HO-1 inhibitor Snpp increased the levels of IP-10, IL-6, and nitrite while THC treatment reduced those inflammatory factors in P.a. LPS–stimulated BV2 cells. In summary, we demonstrated that THC exhibits anti-inflammatory activities in P.a. LPS-induced inflammation in brain microglial cells by inhibiting STAT1/3-dependent NF-κB activation and inducing Nrf2-mediated HO-1 expression. |
| Appears in Collections: | [視光學系] 期刊論文
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