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  • Jin, ChunshengGothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk kemi och cellbiologi,Institute of Biomedicine, Department of Medical Biochemistry and Cell Biology (author)

Human Synovial Lubricin Expresses Sialyl Lewis x Determinant and Has L-selectin Ligand Activity

  • Article/chapterEnglish2012

Publisher, publication year, extent ...

  • 2012

Numbers

  • LIBRIS-ID:oai:gup.ub.gu.se/166873
  • https://gup.ub.gu.se/publication/166873URI
  • https://doi.org/10.1074/jbc.M112.363119DOI
  • http://kipublications.ki.se/Default.aspx?queryparsed=id:125519645URI

Supplementary language notes

  • Language:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • Lubricin (or proteoglycan 4 (PRG4)) is an abundant mucin-like glycoprotein in synovial fluid (SF) and a major component responsible for joint lubrication. In this study, it was shown that O-linked core 2 oligosaccharides (Gal beta 1-3(GlcNAc beta 1-6)GalNAc alpha 1-Thr/Ser) on lubricin isolated from rheumatoid arthritis SF contained both sulfate and fucose residues, and SF lubricin was capable of binding to recombinant L-selectin in a glycosylation-dependent manner. Using resting human polymorphonuclear granulocytes (PMN) from peripheral blood, confocal microscopy showed that lubricin coated circulating PMN and that it partly co-localized with L-selectin expressed by these cells. In agreement with this, activation-induced shedding of L-selectin also mediated decreased lubricin binding to PMN. It was also found that PMN recruited to inflamed synovial area and fluid in rheumatoid arthritis patients kept a coat of lubricin. These observations suggest that lubricin is able to bind to PMN via an L-selectin-dependent and -independent manner and may play a role in PMN-mediated inflammation.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Ekwall, Anna-Karin HGothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för reumatologi och inflammationsforskning,Institute of Medicine, Department of Rheumatology and Inflammation Research(Swepub:gu)xhannp (author)
  • Bylund, Johan,1975Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för reumatologi och inflammationsforskning,Institute of Medicine, Department of Rheumatology and Inflammation Research(Swepub:gu)xbyljo (author)
  • Björkman, Lena,1965Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för reumatologi och inflammationsforskning,Institute of Medicine, Department of Rheumatology and Inflammation Research(Swepub:gu)xblenv (author)
  • Estrella, R. P. (author)
  • Whitelock, J. M. (author)
  • Eisler, T. (author)
  • Bokarewa, Maria,1963Gothenburg University,Göteborgs universitet,Institutionen för medicin, avdelningen för reumatologi och inflammationsforskning,Institute of Medicine, Department of Rheumatology and Inflammation Research(Swepub:gu)xbokma (author)
  • Karlsson, Niclas G.,1966Gothenburg University,Göteborgs universitet,Institutionen för biomedicin, avdelningen för medicinsk kemi och cellbiologi,Institute of Biomedicine, Department of Medical Biochemistry and Cell Biology(Swepub:gu)xkanic (author)
  • Göteborgs universitetInstitutionen för biomedicin, avdelningen för medicinsk kemi och cellbiologi (creator_code:org_t)

Related titles

  • In:Journal of Biological Chemistry287:43, s. 35922-359330021-92581083-351X

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