Abstract:
:Sortase enzymes belong to a family of transpeptidases found in Gram-positive bacteria. Sortase is responsible for the reaction that anchors surface protein virulence factors to the peptidoglycan cell wall of the bacteria. The compound (Z)-3-(2,5-dimethoxyphenyl)-2-(4-methoxyphenyl) acrylonitrile (DMMA) has previously been reported as a novel sortase inhibitor in vitro, but the in vivo effects of DMMA have not been studied. Here, we evaluated the in vivo effects of DMMA against infection by wild-type and sortase A- and/or sortase B-deficient Staphylococcus aureus in Balb/c mice. With DMMA treatment, survival rates increased and kidney and joint infection rates decreased (p<0.01) in a dose-dependent manner. The rate of kidney infection was significantly reduced in the mice treated with sortase A knock-out S. aureus (p<0.01). These results indicate that by acting as a potent inhibitor of sortase A and moderate inhibitor of sortase B, DMMA can decrease kidney and joint infection rates and reduce mortality in mice infected with S. aureus. These findings suggest that DMMA is a promising therapeutic compound against Gram-positive bacteria.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Oh KB,Nam KW,Ahn H,Shin J,Kim S,Mar Wdoi
10.1016/j.bbrc.2010.04.113subject
Has Abstractpub_date
2010-05-28 00:00:00pages
440-4issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(10)00793-Xjournal_volume
396pub_type
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