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Anti-inflammatory properties of pterocarpanquinone LQB-118 in mice. | LitMetric

Anti-inflammatory properties of pterocarpanquinone LQB-118 in mice.

Bioorg Med Chem

Laboratório de Produtos Bioativos, Programa de Pós Graduação em Produtos Bioativos e Biociências, Universidade Federal do Rio de Janeiro Campus UFRJ-Macaé Professor Aloísio Teixeira, Macaé, Rio de Janeiro 27947-200, Brazil. Electronic address:

Published: September 2016

AI Article Synopsis

Article Abstract

Pterocarpanquinone (+/-)-LQB-118 presents antineoplastic and antiparasitic properties and also shows great inhibitory effect on TNF-α release in vitro. Here, its anti-inflammatory activity was evaluated in a lipopolysaccharide (LPS)-induced lung inflammation model in C57BL/6 mice. LPS inhalation induced a marked neutrophil infiltration to the lungs which was reduced by intraperitoneal treatment with (+/-)-LQB-118 in a similar manner to that of dexamethasone and even better than that of acetylsalicylic acid. Moreover, (+/-)-LQB-118 administration resulted in decrease of NF-κB activation and KC level in lungs, with a pronounced inhibitory effect on TNF-α release, measured in bronchoalveolar lavage fluid. Trying to understand the anti-inflammatory mechanism by which (+/-)-LQB-118 acts, we performed a molecular modeling analysis, including docking to estrogen receptors α and β. Results suggested that (+/-)-LQB-118 may bind to both receptors, with a similar orientation to 17-β-estradiol. Together, these results showed that (+/-)-LQB-118 exhibits an anti-inflammatory effect, most likely by inhibiting TNF-α release and NF-κB activation, which may be related to the estrogen receptor binding.

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Source
http://dx.doi.org/10.1016/j.bmc.2016.07.046DOI Listing

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