Journal
JOURNAL OF MEDICINAL CHEMISTRY
Volume 59, Issue 10, Pages 4637-4650Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jmedchem.5b02006
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Funding
- National Natural Science Funding of China [21472142, 21502144, 81402783]
- Zhejiang Key Health Science and Technology Project [WKJ2013-2-021]
- Public Welfare Science and Technology Project of Wenzhou [Y20140736]
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Sepsis is characterized by a systemic inflammatory response syndrome. Derivatives of indole have been reported to exhibit diverse biological activities. This study reports on the design and synthesis of a new series of indole-2-carboxamide derivatives, which are screened for their anti-inflammatory activities in RAW 264.7 macrophages. A majority of these derivatives effectively inhibited lipopolysaccharides (LPS)-induced expression of tumor necrosis factor alpha (TNF-alpha) and interleukin-6 (IL-6). Preliminary structure activity relationship analysis was also conducted. The results indicate that the most promising compounds in the prepared series were 14f and 14g. They were found to effectively reduce LPS-induced pulmonary inflammation and overexpression of a series of inflammatory mediators. Furthermore, in vivo administration of 14f and 14g resulted in remarkable lung histopathological improvements in mice without toxicity in organs. Taken together, these data indicate that the newly discovered indole-2-carboxamide derivatives could be particularly useful for further treatment in inflammatory diseases.
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