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Sökning: onr:"swepub:oai:lup.lub.lu.se:a62da20c-f3c2-4118-b8ea-ef3ef4635abd" > Binding of vitronec...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003534naa a2200385 4500
001oai:lup.lub.lu.se:a62da20c-f3c2-4118-b8ea-ef3ef4635abd
003SwePub
008160401s2015 | |||||||||||000 ||eng|
024a https://lup.lub.lu.se/record/46994062 URI
024a https://doi.org/10.1160/TH14-06-05612 DOI
040 a (SwePub)lu
041 a engb eng
042 9 SwePub
072 7a art2 swepub-publicationtype
072 7a ref2 swepub-contenttype
100a Kohler, S4 aut
2451 0a Binding of vitronectin and Factor H to Hic contributes to immune evasion of Streptococcus pneumoniae serotype 3.
264 1c 2015
338 a electronic2 rdacarrier
520 a Streptococcus pneumoniae serotype 3 strains are highly resistant to opsonophagocytosis due to recruitment of the complement inhibitor Factor H via Hic, a member of the pneumococcal surface protein C (PspC) family. In this study, we demonstrated that Hic also interacts with vitronectin, a fluid-phase regulator involved in haemostasis, angiogenesis, and the terminal complement cascade as well as a component of the extracellular matrix. Blocking of Hic by specific antiserum or genetic deletion significantly reduced pneumococcal binding to soluble and immobilised vitronectin and to Factor H, respectively. In parallel, ectopic expression of Hic on the surface of Lactococcus lactis conferred binding to soluble and immobilised vitronectin as well as Factor H. Molecular analyses with truncated Hic fragments narrowed down the vitronectin-binding site to the central core of Hic (aa 151-201). This vitronectin-binding region is separate from that of Factor H, which binds to the N-terminus of Hic (aa 38-92). Binding of pneumococcal Hic was localised to the C-terminal heparin-binding domain (HBD3) of vitronectin. However, an N-terminal region to HBD3 was further involved in Hic-binding to immobilised vitronectin. Finally, vitronectin bound to Hic was functionally active and inhibited formation of the terminal complement complex. In conclusion, Hic interacts with vitronectin and simultaneously with Factor H, and both human proteins may contribute to colonisation and invasive disease caused by serotype 3 pneumococci.
650 7a MEDICIN OCH HÄLSOVETENSKAPx Klinisk medicinx Kardiologi0 (SwePub)302062 hsv//swe
650 7a MEDICAL AND HEALTH SCIENCESx Clinical Medicinex Cardiac and Cardiovascular Systems0 (SwePub)302062 hsv//eng
700a Hallström, T4 aut
700a Singh, Birendrau Lund University,Lunds universitet,Klinisk mikrobiologi, Malmö,Forskargrupper vid Lunds universitet,Clinical Microbiology, Malmö,Lund University Research Groups4 aut0 (Swepub:lu)med-bas
700a Riesbeck, Kristianu Lund University,Lunds universitet,Klinisk mikrobiologi, Malmö,Forskargrupper vid Lunds universitet,Clinical Microbiology, Malmö,Lund University Research Groups4 aut0 (Swepub:lu)mikr-kri
700a Sparta, G4 aut
700a Zipfel, P F4 aut
700a Hammerschmidt, S4 aut
710a Klinisk mikrobiologi, Malmöb Forskargrupper vid Lunds universitet4 org
773t Thrombosis and Haemostasisg 113:1, s. 125-142q 113:1<125-142x 0340-6245
856u https://portal.research.lu.se/files/3626254/5384801.pdfx primaryx freey FULLTEXT
856u http://www.ncbi.nlm.nih.gov/pubmed/25181963?dopt=Abstracty FULLTEXT
856u http://dx.doi.org/10.1160/TH14-06-0561y FULLTEXT
8564 8u https://lup.lub.lu.se/record/4699406
8564 8u https://doi.org/10.1160/TH14-06-0561

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