alexa Good manufacturing practice-compliant isolation and culture of human umbilical cord blood-derived mesenchymal stem cells.
Molecular Biology

Molecular Biology

Journal of Cell Science & Therapy

Author(s): Pham PV, Vu NB, Pham VM, Truong NH, Pham TL,

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Abstract BACKGROUND: Mesenchymal stem cells (MSCs) are an attractive source of stem cells for clinical applications. These cells exhibit a multilineage differentiation potential and strong capacity for immune modulation. Thus, MSCs are widely used in cell therapy, tissue engineering, and immunotherapy. Because of important advantages, umbilical cord blood-derived MSCs (UCB-MSCs) have attracted interest for some time. However, the applications of UCB-MSCs are limited by the small number of recoverable UCB-MSCs and fetal bovine serum (FBS)-dependent expansion methods. Hence, this study aimed to establish a xenogenic and allogeneic supplement-free expansion protocol. METHODS: UCB was collected to prepare activated platelet-rich plasma (aPRP) and mononuclear cells (MNCs). aPRP was applied as a supplement in Iscove modified Dulbecco medium (IMDM) together with antibiotics. MNCs were cultured in complete IMDM with four concentrations of aPRP (2, 5, 7, or 10\%) or 10\% FBS as the control. The efficiency of the protocols was evaluated in terms of the number of adherent cells and their expansion, the percentage of successfully isolated cells in the primary culture, surface marker expression, and in vitro differentiation potential following expansion. RESULTS: The results showed that primary cultures with complete medium containing 10\% aPRP exhibited the highest success, whereas expansion in complete medium containing 5\% aPRP was suitable. UCB-MSCs isolated using this protocol maintained their immunophenotypes, multilineage differentiation potential, and did not form tumors when injected at a high dose into athymic nude mice. CONCLUSION: This technique provides a method to obtain UCB-MSCs compliant with good manufacturing practices for clinical application.
This article was published in J Transl Med and referenced in Journal of Cell Science & Therapy

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