4.7 Article

Structure-based discovery of a specific TLR1-TLR2 small molecule agonist from the ZINC drug library database

Journal

CHEMICAL COMMUNICATIONS
Volume 54, Issue 81, Pages 11411-11414

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc06618c

Keywords

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Funding

  1. National Natural Science Foundation of China [81773558]
  2. Southern Medical University of China [C1033269]
  3. Youth Pearl River Scholar Program of Guangdong Province [C1034007]

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We report herein the identification of urea structure-like small molecules by structure-based virtual screening of 10.5 million compounds. Based on a variety of HEK-Blue hTLRs reporter cell assay results, we validated a TLR1/2-specific small molecule agonist, ZINC666243 (SMU127), with EC50 of 0.55 +/- 0.01 M. SMU127 stimulates NF-B activation and promotes TNF secretion in human macrophages and mononuclear cells. Moreover, the in vivo assay indicated that SMU127 could inhibit the growth of breast cancer tumors in BABL/c mice. This work has shown for the first time that a small molecule TLR1/2 agonist can inhibit breast cancer in vivo.

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