Synthesis and Biological Evaluation of an Indazole-Based Selective Protein Arginine Deiminase 4 (PAD4) Inhibitor
摘要:
Protein arginine deiminase 4 (PAD4) is a calcium-dependent enzyme that catalyzes the conversion of arginine to citrulline within target proteins. Dysregulation of PAD4 has been implicated in a number of human diseases, including rheumatoid arthritis and other inflammatory diseases as well as cancer. In this study, we report on the design, synthesis, and evaluation of a new class of haloacetamidine-based compounds as potential PAD4 inhibitors. Specifically, we describe the identification of 4,5,6-trichloroindazole 24 as a highly potent PAD4 inhibitor that displays >10-fold selectivity for PAD4 over PAD3 and >50-fold over PAD1 and PAD2. The efficacy of this compound in cells was determined by measuring the inhibition of PAD4-mediated H4 citrullination in HL-60 granulocytes.
作者:Taekyu Lee、Albert J Robichaud、Kristopher E Boyle、Yimin Lu、David W Robertson、Keith J Miller、Larry W Fitzgerald、John F McElroy、Brian L Largent
DOI:10.1016/s0960-894x(02)01028-4
日期:2003.2
The discover of N-substituted-pyridoindolines and their binding affinities at the 5-HT2A, 5-HT2C and D-2 receptors, and in vivo efficacy as 5-HT2A antagonists is described. The structure-activity relationship of a series of core tetracyclic derivatives with varying butyrophenone sidechains is also discussed. This study has led to the identification of potent, orally bioavailable 5-HT2A/D2 receptor dual antagonists as potential atypical antipsychotics. (C) 2003 Elsevier Science Ltd. All rights reserved.
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