Abstract:
:This article highlights our work toward the identification of a potent, selective, and efficacious acidic mammalian chitinase (AMCase) inhibitor. Rational design, guided by X-ray analysis of several inhibitors bound to human chitotriosidase (hCHIT1), led to the identification of compound 7f as a highly potent AMCase inhibitor (IC50 values of 14 and 19 nM against human and mouse enzyme, respectively) and selective (>150× against mCHIT1) with very good PK properties. This compound dosed once daily at 30 mg/kg po showed significant anti-inflammatory efficacy in HDM-induced allergic airway inflammation in mice, reducing inflammatory cell influx in the BALF and total IgE concentration in plasma, which correlated with decrease of chitinolytic activity. Therapeutic efficacy of compound 7f in the clinically relevant aeroallergen-induced acute asthma model in mice provides a rationale for developing AMCase inhibitor for the treatment of asthma.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Mazur M,Olczak J,Olejniczak S,Koralewski R,Czestkowski W,Jedrzejczak A,Golab J,Dzwonek K,Dymek B,Sklepkiewicz PL,Zagozdzon A,Noonan T,Mahboubi K,Conway B,Sheeler R,Beckett P,Hungerford WM,Podjarny A,Mitschler A,Cousdoi
10.1021/acs.jmedchem.7b01051subject
Has Abstractpub_date
2018-02-08 00:00:00pages
695-710issue
3eissn
0022-2623issn
1520-4804journal_volume
61pub_type
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