A novel synthetic HTB derivative, BECT inhibits lipopolysaccharide-mediated inflammatory response by suppressing the p38 MAPK/JNK and NF-kappa B activation pathways

作者：Kang Seong Mook; More Sandeep Vasant; Park Ju Young; Kim Byung Wook; In Park Jeong; Yoon Sung Hwa; Choi Dong Kug^*

来源：Pharmacological Reports, 2014, 66(3): 471-479.

DOI：10.1016/j.pharep.2013.08.015

• HTB derivative
• Lipopolysaccharide
• Microglia
• Neuroinflammation
• Neurodegenerative disease

Activated microglia cells are well recognized as mediators of neuroinflammation, as they release nitric oxide and pro-inflammatory cytokines in various neuroinflammatory diseases. Thus, suppressing microglial activation may alleviate neuroinflammatory and neurodegenerative processes. In the present study, we synthesized and investigated the anti-neuroinflammatory effect of a novel HTB (2-hydroxy-4-trifuoromethylbenzoic acid) derivative in lipopolysaccharide (LPS)-stimulated microglial cells. Among the synthesized derivatives, the BECT [But-2-enedioic acid bis-(2-carboxy-5-trifluoromethyl-phenyl) ester] significantly decreased production of nitric oxide and other pro-inflammatory cytokines including tumor necrosis factor-a, interleukin-1 beta, and interleukin-6 in microglial cells. BED%26apos; also mitigated the expression of inducible nitric oxide synthase and cyclooxygenase-2 at both the mRNA and protein levels. Further mechanistic studies demonstrated that the HTB derivative inhibited phosphorylation of JNK and p38 mitogen-activated protein kinase and nuclear translocation of nuclear factor kappa-B in LPS-stimulated BV-2 microglial cells. Thus BED%26apos;, our novel synthesized compound have anti-inflammatory activity in microglial cells, and may have therapeutic potential for treating neuroinflammatory diseases.

• 出版日期2014-6