Integrative Biology Journals

Natural Products and Bioprospecting ›› 2012, Vol. 2 ›› Issue (2): 87-91.DOI: 10.1007/s13659-012-0017-0

• Regular Article • Previous Articles    

Glucosamine increases the expression of YKL-40 and osteogenic marker genes in hMSC during osteogenic differentiation

Ramona LIEDERa,b, Sigrídur Thóra REYNISDÓTTIRa, Finnbogi THORMÓDSSONe, Chuen-How NGc, Jon Magnús EINARSSONc, Jóhannes GÍSLASONc, Jóhannes BJÖRNSSONd,f, Sveinn GUDMUNDSSONa, Pétur Henry PETERSENe, Ólafur Eysteinn SIGURJÓNSSONa,b,d   

  1. a The Blood Bank, Landspitali University Hospital, Snorrabraut 60, 105 Reykjavik, Iceland;
    b School of Science and Engineering, Reykjavik University, Menntavegi 1, 101 Reykjavik, Iceland;
    c Genis ehf, Vatnagördum 18, 104 Reykjavik, Iceland;
    d Biomedical Center, University of Iceland, Vatnsmyrarvegi 16, 101 Reykjavik, Iceland;
    e Department of Anatomy, Medical Faculty, University of Iceland, Vatnsmyrarvegi 16, 101 Reykjavik, Iceland;
    f Department of Pathology, Landspitali University Hospital, Baronsstig, 101 Reykjavik, Iceland
  • Received:2012-02-28 Revised:2012-03-25 Online:2018-02-11 Published:2012-04-24
  • Supported by:
    This work was supported by grants from Technology Development Fund, managed by the Icelandic Center for Research, and Landspitali University Hospital Research Fund.

Glucosamine increases the expression of YKL-40 and osteogenic marker genes in hMSC during osteogenic differentiation

Ramona LIEDERa,b, Sigrídur Thóra REYNISDÓTTIRa, Finnbogi THORMÓDSSONe, Chuen-How NGc, Jon Magnús EINARSSONc, Jóhannes GÍSLASONc, Jóhannes BJÖRNSSONd,f, Sveinn GUDMUNDSSONa, Pétur Henry PETERSENe, Ólafur Eysteinn SIGURJÓNSSONa,b,d   

  1. a The Blood Bank, Landspitali University Hospital, Snorrabraut 60, 105 Reykjavik, Iceland;
    b School of Science and Engineering, Reykjavik University, Menntavegi 1, 101 Reykjavik, Iceland;
    c Genis ehf, Vatnagördum 18, 104 Reykjavik, Iceland;
    d Biomedical Center, University of Iceland, Vatnsmyrarvegi 16, 101 Reykjavik, Iceland;
    e Department of Anatomy, Medical Faculty, University of Iceland, Vatnsmyrarvegi 16, 101 Reykjavik, Iceland;
    f Department of Pathology, Landspitali University Hospital, Baronsstig, 101 Reykjavik, Iceland
  • 通讯作者: Ólafur Eysteinn SIGURJÓNSSON,E-mail:oes@landspitali.is
  • 基金资助:
    This work was supported by grants from Technology Development Fund, managed by the Icelandic Center for Research, and Landspitali University Hospital Research Fund.

Abstract: Human mesenchymal stem cells(hMSC) can be expanded in vitro and differentiated towards osteogenic, chondrogenic or adipogenic lineages, making them an attractive source for tissue engineering and regenerative medicine. Chitinase-like-proteins(CLPs) belong to the family 18 glycosyl hydrolases and are believed to play a role in inflammation and tissue remodelling. The aim of this study was to determine the effect of the aminosugar glucosamine on the expression of the CLP YKL-40 during osteogenic differentiation of hMSC. Glucosamine did not affect multipotency of hMSC nor proliferation rate of undifferentiated hMSC. YKL-40 was expressed during both expansion of undifferentiated hMSC and during osteogenic differentiation. A slight but nonsignificant increase in YKL-40 expression was observed with glucosamine, accompanied by a pH-dependent delay in mineralization. However, glucosamine induced higher expression of osteogenic marker genes.

Key words: YKL-40, mesenchymal stem cells, osteogenic differentiation, chitinase-like-protein

摘要: Human mesenchymal stem cells(hMSC) can be expanded in vitro and differentiated towards osteogenic, chondrogenic or adipogenic lineages, making them an attractive source for tissue engineering and regenerative medicine. Chitinase-like-proteins(CLPs) belong to the family 18 glycosyl hydrolases and are believed to play a role in inflammation and tissue remodelling. The aim of this study was to determine the effect of the aminosugar glucosamine on the expression of the CLP YKL-40 during osteogenic differentiation of hMSC. Glucosamine did not affect multipotency of hMSC nor proliferation rate of undifferentiated hMSC. YKL-40 was expressed during both expansion of undifferentiated hMSC and during osteogenic differentiation. A slight but nonsignificant increase in YKL-40 expression was observed with glucosamine, accompanied by a pH-dependent delay in mineralization. However, glucosamine induced higher expression of osteogenic marker genes.

关键词: YKL-40, mesenchymal stem cells, osteogenic differentiation, chitinase-like-protein