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Male Germ-Like Cell Differentiation Potential of Human Umbilical Cord Wharton’S Jelly-Derived Mesenchymal Stem Cells in Co-Culture With Human Placenta Cells in Presence of Bmp4 and Retinoic Acid



Ataie Nejad N1 ; Amidi F2 ; Agha Hoseini M3 ; Nayer Nia K4 ; Habibi M5 ; Kajbafzadeh AM6 ; Mazaheri Z7 ; Yamini N1
Authors
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Authors Affiliations
  1. 1. Department of Reproductive Biology, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Anatomical Sciences, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. IVF Center, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Institute for Molecular Medicine and Cell Therapy, Dusseldorf, Germany and GENEOCELL, Advanced Molecular and Cellular Technologies, Tehran, Iran
  5. 5. Blood Transfusion Research Center, High Institute for Research and Education in Transfusion Medicine, Tehran, Iran
  6. 6. Pediatric Urology Research Center, Children Hospital Medical Center, Tehran University of Medical Sciences, Tehran, Iran
  7. 7. Department of Anatomical Sciences, Tarbiat Modares University, Tehran, Iran

Source: Iranian Journal of Basic Medical Sciences Published:2015

Abstract

Objective(s): Mesenchymal stem cells (MSCs) derived from Wharton’s jelly (WJ-MSCs) are now much more appealing for cell-based infertility therapy. Hence, WJ-MSCs differentiation toward germ layer cells for cell therapy purposes is currently under intensive study. Materials and Methods: MSCs were isolated from human Wharton’s jelly and treated with BMP4, retinoic acid (RA) or co-cultured on human amniotic epithelial (HAE) and chorionic plate (HCP) placenta feeder cells. profile of POU5F1, Fragilis, Plzf, DDX4, Piwil2, Stra8, Dazl, β1- and α6-integrins (ITΒ1, ITA6) genes expression as germ cell markers were analyzed using RT-PCR and real-time PCR. Immunocytochemistry of surface markers were conducted. Results: After 3 weeks treatment with different reagents and co-culture system, morphology of WJ-MSCs changed to shiny clusters and germ cell specific markers in mRNA were up-regulated in both placental feeder + RA and BMP4 + RA. Induction of hWJ-MSCs with BMP4 in presence of RA resulted in significant up-regulation (P≤0.05) of all germ cell specific genes (c-Kit; 2.84±0.59, DDX4; 1.69±0.39, Piwil2; 1.14±0.21, Dazl; 0.65±0.25, α6 integrin; 1.26±0.53, β1 integrins; 1.18±0.65) compared to control and placental feeder cells + RA. Our results indicated that HAE and HCP followed by RA treatment were involved in human germ cell development. Conclusion: We demonstrated that under the right conditions, hWJ-MSCs have the ability to differentiate to germ cells and this provides an excellent pattern to study infertility cause and treatment. © 2015, Mashhad University of Medical Sciences. All rights reserved.
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