Abstract:
:Acute lung injury (ALI) and idiopathic pulmonary fibrosis (IPF) are both serious public health problems with high incidence and mortality rate in adults, and with few drugs available for the efficient treatment in clinic. In this study, we identified that two known histone deacetylase (HDAC) inhibitors, suberanilohydroxamic acid (SAHA, 1) and its analogue 4-(dimethylamino)-N-[7-(hydroxyamino)-7-oxoheptyl]benzamide (2), are effective inhibitors of Leukotriene A4 hydrolase (LTA4H), a key enzyme in the biosynthesis of leukotriene B4 (LTB4), across a panel of 18 HDAC inhibitors, using enzymatic assay, thermofluor assay, and X-ray crystallographic investigation. Importantly, both 1 and 2 markedly diminish early neutrophilic inflammation in mouse models of ALI and IPF under a clinical safety dose. Detailed mechanisms of down-regulation of proinflammatory cytokines by 1 or 2 were determined in vivo. Collectively, 1 and 2 would provide promising agents with well-known clinical safety for potential treatment in patients with ALI and IPF via pharmacologically inhibiting LAT4H and blocking LTB4 biosynthesis.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Lu W,Yao X,Ouyang P,Dong N,Wu D,Jiang X,Wu Z,Zhang C,Xu Z,Tang Y,Zou S,Liu M,Li J,Zeng M,Lin P,Cheng F,Huang Jdoi
10.1021/acs.jmedchem.6b01507subject
Has Abstractpub_date
2017-03-09 00:00:00pages
1817-1828issue
5eissn
0022-2623issn
1520-4804journal_volume
60pub_type
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