Journal of Materials Science: Materials in Medicine

, Volume 24, Issue 2, pp 479–488

A novel cyclic RGD-containing peptide polymer improves serum-free adhesion of adipose tissue-derived mesenchymal stem cells to bone implant surfaces

  • Péter Tátrai
  • Bernadett Sági
  • Anna Szigeti
  • Áron Szepesi
  • Ildikó Szabó
  • Szilvia Bősze
  • Zoltán Kristóf
  • Károly Markó
  • Gergely Szakács
  • István Urbán
  • Gábor Mező
  • Ferenc Uher
  • Katalin Német
Article

Abstract

Seeding of bone implants with mesenchymal stem cells (MSCs) may promote osseointegration and bone regeneration. However, implant material surfaces, such as titanium or bovine bone mineral, fail to support rapid and efficient attachment of MSCs, especially under serum-free conditions that may be desirable when human applications or tightly controlled experiments are envisioned. Here we demonstrate that a branched poly[Lys(Seri-DL-Alam)] polymer functionalized with cyclic arginyl-glycyl-aspartate, when immobilized by simple adsorption to tissue culture plastic, surgical titanium alloy (Ti6Al4V), or Bio-Oss® bovine bone substitute, significantly accelerates serum-free adhesion and enhances seeding efficiency of human adipose tissue-derived MSCs. Moreover, when exposed to serum-containing osteogenic medium, MSCs survived and differentiated on the peptide-coated scaffolds. In summary, the presented novel polypeptide conjugate can be conveniently used for coating various surfaces, and may find applications whenever quick and efficient seeding of MSCs is required to various scaffolds in the absence of serum.

Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • Péter Tátrai
    • 1
    • 2
  • Bernadett Sági
    • 3
  • Anna Szigeti
    • 4
  • Áron Szepesi
    • 4
  • Ildikó Szabó
    • 5
  • Szilvia Bősze
    • 5
  • Zoltán Kristóf
    • 6
  • Károly Markó
    • 7
  • Gergely Szakács
    • 1
  • István Urbán
    • 8
  • Gábor Mező
    • 5
  • Ferenc Uher
    • 3
  • Katalin Német
    • 2
    • 4
  1. 1.Research Center for Natural Sciences, Hungarian Academy of SciencesBudapestHungary
  2. 2.Department of Experimental Gene TherapyNational Blood Transfusion ServiceBudapestHungary
  3. 3.Stem Cell LaboratoryNational Blood Transfusion ServiceBudapestHungary
  4. 4.Creative Cell LtdBudapestHungary
  5. 5.Research Group of Peptide Chemistry, Hungarian Academy of SciencesBudapestHungary
  6. 6.Department of Plant AnatomyEötvös Loránd UniversityBudapestHungary
  7. 7.Institute of Experimental Medicine, Hungarian Academy of SciencesBudapestHungary
  8. 8.Department of Restorative DentistryLoma Linda UniversityLoma LindaUSA

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