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Design, synthesis, and structure–activity relationships of 2-benzylidene-1-indanone derivatives as anti-inflammatory agents for treatment of acute lung injury

Authors Xiao S, Zhang W, Chen H, Fang B, Qiu Y, Chen X, Chen L, Shu S, Zhang Y, Zhao Y, Liu Z, Liang G

Received 19 December 2017

Accepted for publication 16 February 2018

Published 19 April 2018 Volume 2018:12 Pages 887—899

DOI https://doi.org/10.2147/DDDT.S160314

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Palas Chanda

Peer reviewer comments 2

Editor who approved publication: Dr Qiongyu Guo


Siyang Xiao,1,* Wenxin Zhang,1,* Hongjin Chen,1 Bo Fang,1 Yinda Qiu,2 Xianxin Chen,1 Lingfeng Chen,1 Sheng Shu,1 Yunjie Zhao,1 Zhiguo Liu,1 Guang Liang1

1Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China; 2College of Life and Environmental Science, Wenzhou University, Wenzhou, Zhejiang, China

*These authors contributed equally to this work

Purpose: The purpose of this study was to design and synthesize novel 2-benzylidene-1-indanone derivatives for treatment of acute lung injury.
Methods: A series of 39 novel 2-benzylidene-indanone structural derivatives were synthesized and evaluated for anti-inflammatory activity in lipopolysaccharide (LPS)-stimulated murine primary macrophages.
Results: Most of the obtained compounds effectively inhibited the LPS-induced expression of IL-6 and TNF-α. The most active compound, 8f, was found to significantly reduce LPS-induced pulmonary inflammation, as reflected by reductions in the concentration of total protein, inflammatory cell count, as well as the lung wet/dry ratio in bronchoalveolar lavage (BAL) fluid. Furthermore, 8f effectively inhibited mRNA expression of several inflammatory cytokines after LPS challenge in vitro and in vivo. Administration of 8f also blocked LPS-induced activation of the proinflammatory NF-κB/MAPK signaling pathway.
Conclusion: The simple synthetic preparation and biological properties of these derivatives make these 2-benzylidene-indanone scaffolds promising new entities for the development of anti-inflammatory therapeutics for the treatment of acute lung injury.

Keywords: indanone, acute lung injury, drug design, anti-inflammation, synthesis

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