Indenes and tetralenes analogues attenuates lipopolysaccharide-induced inflammation: An in-vitro and in-vivo study
2016
Abstract In an effort to evaluate novel pharmacological activity of 1-chloro-2-formyl indene and tetralene analogues possessing potential antitubercular and antistaphylococcal agents, we explored its anti-inflammatory potential against lipopolysaccharide(LPS)-induced inflammation using in-vitro and in-vivo bioassay. Synthesized analogues significantly inhibited the production and expression of pro-inflammatory cytokines against LPS-induced inflammation in macrophages isolated from mice. Among all the analogues, TAF-5 (1-Chloro-2-formyl-1-tetralene) exhibited most potent anti-inflammatory activity without any cytotoxic effect. We have further evaluated the therapeutic efficacy and safety of TAF-5 in in-vivo system using LPS-induced sepsis, a systemic inflammation model and acute oral toxicity respectively in mice. Oral administration of TAF-5 inhibited the pro-inflammatory cytokines in serum, attenuated the organs injuries and improved host survival in dose dependent manner. Acute oral toxicity study showed TAF-5 is non–toxic at higher dose in mice. These results suggest the suitability of indene and tetralene analogues as new chemical entities for further investigation towards the management of inflammation related diseases.
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