Synthesis of urea analogues bearing N-alkyl-N'-(thiophen-2-yl) scaffold and evaluation of their innate immune response to toll-like receptors

Add time:07/31/2019    Source:sciencedirect.com

Previous high throughput virtual screening of 10 million-compound and following cell based validation led to the discovery of a novel, nonlipopeptide-like chemotype ZINC 6662436, as toll-like receptor 2 (TLR2) agonists. In this report, compounds belonging to four areas of structural modification of ZINC6662436 were evaluated for biological activity using human HEK-Blue TLR2 reporter cells, and human THP-1 monocytic cells, yield SMU-C13 as an optimized, direct and high potent (EC50 = 160 nM) agonist of human TLR2. Moreover, preliminary mechanism studies indicated that SMU-C13 through activates TLR1 and TLR2 then stimulates the NF-κB activation to trigger the downstream cytokines, such as TNF-α and secreted alkaline phosphatase (SEAP).

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