Abstract:
:Methicillin resistant Staphylococcus aureus (MRSA) is a major human pathogen, which causes superficial to lethal clinical infections. Neutrophils are the most abundant leukocytes in the blood and are the first defense mechanism against S. aureus infections. Here we show Staphylococcal Superantigen-Like protein 11 (SSL11) from MRSA USA300_FPR3757 mediated differentiated human neutrophil-like cells (dHL60) motility arrest by inducing cell adhesion and "locking" cells in adhesion stage, without inducing oxidative burst. Pre-incubation of SSL11 with the glycan Sialyl Lewis X blocked SSL11 function and de-glycosylation of dHL60 cells by PNGase F abolished SSL11 binding, suggesting that SSL11 functions via interacting with glycans. This is the first description of a bacterial toxin inhibiting neutrophil motility by inducing adhesion and "locking" cells in an adhesion stage. Therefore, this study might provide a new target against S. aureus infections.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Chen C,Yang C,Barbieri JTdoi
10.1038/s41598-019-40817-xsubject
Has Abstractpub_date
2019-03-12 00:00:00pages
4211issue
1issn
2045-2322pii
10.1038/s41598-019-40817-xjournal_volume
9pub_type
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