作者:Daigo Inoyama、Divya Awasthi、Glenn C. Capodagli、Kholiswa Tsotetsi、Paridhi Sukheja、Matthew Zimmerman、Shao-Gang Li、Ravindra Jadhav、Riccardo Russo、Xin Wang、Courtney Grady、Todd Richmann、Riju Shrestha、Liping Li、Yong-Mo Ahn、Hsin Pin Ho Liang、Marizel Mina、Steven Park、David S. Perlin、Nancy Connell、Véronique Dartois、David Alland、Matthew B. Neiditch、Pradeep Kumar、Joel S. Freundlich
DOI:10.1016/j.chembiol.2020.02.007
日期:2020.5
Published Mycobacterium tuberculosis beta-ketoacyl-ACP synthase KasA inhibitors lack sufficient potency and/or pharmacokinetic properties. A structure-based approach was used to optimize existing KasA inhibitor DG167. This afforded indazole JSF-3285 with a 30-fold increase in mouse plasma exposure. Biochemical, genetic, and X-ray studies confirmed JSF-3285 targets KasA. JSF-3285 offers substantial activity in an acute mouse model of infection and in the corresponding chronic infection model, with efficacious reductions in colony-forming units at doses as low as 5 mg/kg once daily orally and improvement of the efficacy of front-line drugs isoniazid or rifampicin. JSF-3285 is a promising preclinical candidate for tuberculosis.