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  2. Design and synthesis novel di-carbonyl analogs of curcumin (DACs) act as potent anti-inflammatory agents against LPS-induced acute lung injury (ALI)

Design and synthesis novel di-carbonyl analogs of curcumin (DACs) act as potent anti-inflammatory agents against LPS-induced acute lung injury (ALI)

  • Eur J Med Chem. 2019 Apr 1;167:414-425. doi: 10.1016/j.ejmech.2019.02.042.
Jianchang Qian 1 Xianxin Chen 1 Sheng Shu 1 Wenxin Zhang 1 Bo Fang 1 Xiaojing Chen 1 Yunjie Zhao 2 Zhiguo Liu 3 Guang Liang 1
Affiliations

Affiliations

  • 1 Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang, 325035, China.
  • 2 Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang, 325035, China. Electronic address: aabye1100@aliyun.com.
  • 3 Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang, 325035, China. Electronic address: lzgcnu@163.com.
Abstract

A novel series of di-carbonyl analogs of curcumin (DACs) were prepared and evaluated for their anti-inflammatory properties. Preliminary results showed that a vast majority of compounds tested in this study could effectively suppress LPS-induced production of tumor necrosis factor (TNF)-α and interleukin (IL)-6. Structure-activity relationships of the compounds were discussed. Compounds 5a27 and 5a28 showed the most potent anti-inflammatory activities and had higher structural stability and orally bioavailability than curcumin in vitro. Mechanistically, they inhibited the activation of macrophages via the blockade of mitogen-activated protein kinase (MAPK) signaling and nuclear translocation of NF-κB. In vivo, 5a27 and 5a28 markedly alleviated lipopolysaccharides (LPS)-induced acute lung injury (ALI). The wet/dry ratio of lungs was significantly normalized by the active compounds, which was consistent with the suppression of neutrophil infiltration and production of proinflammatory cytokines. Collectively, these results present a new series of curcumin analogs as promising anti-inflammatory agents for treatment of ALI.

Keywords

Acute lung injury; Anti-inflammation; Di-carbonyl analogs of curcumin; Structural stability.

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