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  • Title: Large-scale expansion of pre-isolated bone marrow mesenchymal stromal cells in serum-free conditions.
    Author: Gottipamula S, Muttigi MS, Chaansa S, Ashwin KM, Priya N, Kolkundkar U, SundarRaj S, Majumdar AS, Seetharam RN.
    Journal: J Tissue Eng Regen Med; 2016 Feb; 10(2):108-19. PubMed ID: 23495227.
    Abstract:
    The regenerative potential of mesenchymal stromal or stem cells (MSCs) has generated tremendous interest for treating various degenerative diseases. Regulatory preference is to use a culture medium that is devoid of bovine components for stem cell expansion intended for therapeutic applications. However, a clear choice an alternative to fetal bovine serum (FBS) has not yet emerged. We have screened five different commercially available serum-free media (SFM) for their ability to support the growth and expansion of pre-isolated undifferentiated bone marrow-derived MSCs (BM-MSCs) and compared the results with cells grown in standard FBS-containing medium as control. In addition, based on initial screening results, BD Mosaic™ Mesenchymal Stem Cell Serum-free (BD-SFM) medium was evaluated in large-scale cultures for the performance and culture characteristics of BM-MSCs. Of the five different serum-free media, BD-SFM enhanced BM-MSCs growth and expansion in Cell STACK (CS), but the cell yield per CS-10 was less when compared to the control medium. The characteristics of MSCs were measured in terms of population doubling time (PDT), cell yield and expression of MSC-specific markers. Significant differences were observed between BD-SFM and control medium in terms of population doublings (PDs), cell yield, CFU-F and morphological features, whereas surface phenotype and differentiation potentials were comparable. The BD-SFM-cultured MSCs were also found to retain the differentiation potential, immune-privileged status and immunosuppressive properties inherent to MSCs. Our results suggest that BD-SFM supports large-scale expansion of BM-MSCs for therapeutic use.
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