Production of endothelial progenitor cells from skin fibroblasts by direct reprogramming for clinical usages

  • Phuc Van Pham
  • Ngoc Bich Vu
  • Thuy Thi-Thanh Dao
  • Ha Thi-Ngan Le
  • Lan Thi Phi
  • Ngoc Kim Phan


Endothelial progenitor cells (EPCs) play an important role in angiogenesis. However, they exist in limited numbers in the human body. This study was aimed to produce EPCs, for autologous transplantation, using direct reprogramming of skin fibroblasts under GMP-compliant conditions. Fibroblasts were collected and cultured from the skin in DMEM/F12 medium supplemented with 5% activated platelet-rich plasma and 1% antibiotic-antimycotic solution. They were then transfected with mRNA ETV2 and incubated in culture medium under hypoxia (5% oxygen) for 14 d. Phenotype analysis of transfected cells confirmed that single-factor ETV2 transfection successfully reprogrammed dermal fibroblasts into functional EPCs. Our results showed that ETV2 mRNA combined with hypoxia can give rise to functional EPCs. The cells exhibited functional phenotypes similar to endothelial cells derived from umbilical cord vein; they expressed CD31 and VEGFR2, and formed capillary-like structures in vitro. Moreover, these EPCs could significantly improve hindlimb ischemia in mouse models. Although the direct conversion efficacy was low (3.12 ± 0.98%), altogether our study demonstrates that functional EPCs can be produced from fibroblasts and can be used in clinical applications.


Endothelial progenitor cells Direct conversion ETV2 Hindlimb ischemia Ischemia Stem cell therapy Epigenetic reprogramming 



This research was funded by the Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number 106-YS.06-2013.37.

Competing interests

The authors declare they have no competing interests.


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Copyright information

© The Society for In Vitro Biology 2016

Authors and Affiliations

  • Phuc Van Pham
    • 1
  • Ngoc Bich Vu
    • 1
  • Thuy Thi-Thanh Dao
    • 1
  • Ha Thi-Ngan Le
    • 1
  • Lan Thi Phi
    • 1
  • Ngoc Kim Phan
    • 1
  1. 1.Laboratory of Stem Cell Research and Application, University of ScienceVietnam National UniversityHo Chi Minh CityVietnam

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