Author/Authors :
Mardani, Mohammad Department of Anatomical Sciences and Molecular Biology - Faculty of Medicine - Isfahan University of Medical Sciences , Kabiri, Azadeh Department of Anatomical Sciences - Paramedical school - Guilan University of Medical Sciences, Langeroud , Esfandiari, Ebrahim Department of Anatomical Sciences and Molecular Biology - Faculty of Medicine - Isfahan University of Medical Sciences , Esmaeili, Abolghasem Cell - Molecular and Developmental Biology Division - Department of Biology - Faculty of Sciences - University of Isfahan , Pourazar, Abbasali Department of Immunology - Faculty of Medicine - Isfahan University of Medical Sciences , Ansar, Malekmassoud Department of Anatomical Sciences - Faculty of Medicine - Guilan University of Medical Sciences, Rasht , Hashemibeni, Batool Department of Anatomical Sciences and Molecular Biology - Faculty of Medicine - Isfahan University of Medical Sciences
Abstract :
Objective(s): Platelet-rich plasma (PRP) has recently emerged as a promising strategy in regenerative medicine due to its multiple endogenous growth factors. Little is known about the role of PRP as a promoter in chondrogenesis of human adipose derived stem cells (hADSCs). The aim of this study was to determine whether PRP may be considered as a natural and easy achievable source of growth factors to promote the chondrogenic differentiation of hADSCs in Transwell culture. Materials and Methods: Biochemical, immunohistological and molecular assays were used to evaluate the effect of different concentrations (5%, 10%, and 15%) of PRP on chondrogenic differentiation of hADSCs in Transwell culture. Results: The cells in the presence of 10% PRP produced markedly higher amounts of GAG and DNA, in comparison to the control group. PRP also increased chondrogenic markers in these cells, such as sox-9, aggrecan and collagen type II. A high expression level of collagen type X as a hypertrophic marker was observed in cartilage produced by using either PRP or TGF-β1. Conclusion: Our findings indicate that autologous PRP at an optimum concentration had beneficial effects on differentiation of hADSCs in Transwell culture. Further, in vivo studies are necessary to fully define the clinical implications of PRP.
