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- Title
Anti-inflammatory Effects of Triptolide in LPS-Induced Acute Lung Injury in Mice.
- Authors
Wei, Dong; Huang, Zhihong
- Abstract
Triptolide is one of the main active components of Chinese herb Tripterygium wilfordii Hook F, which has been demonstrated to have anti-inflammatory properties. The aim of this study was to investigate the effects of triptolide on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice and to clarify the possible mechanisms. Mice were administered intranasally with LPS to induce lung injury. Triptolide was administered intraperitoneally 1 h before LPS challenge. Triptolide-treated mice exhibited significantly reduced leukocyte, myeloperoxidase (MPO) activity, edema of the lung, as well as TNF-α, IL-1β, and IL-6 production in the bronchoalveolar lavage fluid compared with LPS-treated mice. Additionally, Western blot analysis showed that triptolide inhibited the phosphorylation of inhibitor-kappa B kinase-alpha (IκB-α), p65, nuclear factor kappa B (NF-κB), p38, extracellular receptor kinase (ERK), and Jun N-terminal kinase (JNK) and the expression of Toll-like receptor 4 (TLR4) caused by LPS. In conclusion, our results suggested that the promising anti-inflammatory mechanism of triptolide may be that triptolide activates peroxisome proliferation-activated receptor gamma (PPAR-γ), thereby attenuating an LPS-induced inflammatory response. Triptolide may be a promising potential therapeutic reagent for ALI treatment.
- Subjects
ANTI-inflammatory agents; TRIPTOLIDE; LUNG injuries; LABORATORY mice; LIPOPOLYSACCHARIDES; INTRAPERITONEAL injections; TRIPTERYGIUM wilfordii
- Publication
Inflammation, 2014, Vol 37, Issue 4, p1307
- ISSN
0360-3997
- Publication type
Article
- DOI
10.1007/s10753-014-9858-5