期刊
BIOORGANIC CHEMISTRY
卷 96, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.bioorg.2020.103611
关键词
PPAR-gamma agonist; Anti-inflammatory; NF-kappa B pathway; Cyclooxygenase-2
资金
- National Research Foundation of Korea, South Korea [NRF 201901920001]
- PNU, South Korea, postdoc program (2018)
- China Scholarship Council, China [201608260116]
In our previous study, a PPAR-gamma agonist (+)-(R,E)-6a1 was elaborated as an anti-inflammatory lead. However, in silico analysis showed that (+ )-(R,E)-6a1 lacks key hydrogen bonding with Tyr(473) of PPAR-gamma LBD (ligand binding domain). To facilitate additional hydrogen bonding with Tyr(473), a more polar head group was introduced to the structure of (+)-(R,E)-6a1, and we also attempted to synthesize enzymatically stable derivatives. Of the synthetic derivatives, compound (+)-(R,E)-5f showed highest PPAR-gamma transcriptional activity and reasonable metabolic stability. Compound (+)-(R,E)-5f suppressed the expression of pro-inflammatory mediators such as inducible NO synthase (iNOS), cyclooxygenase-2 (COX-2), interleukin 6 (IL-6), and tumor necrosis factor-alpha(TNF-alpha). Reduction of nitric oxide (NO), and ROS was also observed. Compound ( + )-(R,E)-5f was found to suppress the NF-kappa B pathway by inhibiting phosphorylation of IKK (I kappa B kinase), and this may lead to subsequent inhibition of I kappa B alpha (inhibitor of NF-kappa Ba) phosphorylation and inhibition of NF-kappa B activation. These results indicate that (+)-(R,E)-5f exerts anti-inflammatory activity via NF-KB pathway inhibition, and may serve as a potential anti-inflammatory lead.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据