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Effects of different sera on adipose tissue-derived mesenchymal stromal cells
State Research Institute Centre Innovat Med, Lithuania .
Institute Biochem, Lithuania .
Institute Biochem, Lithuania .
Institute Biochem, Lithuania .
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2011 (English)In: JOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE, ISSN 1932-6254, Vol. 5, no 9, 733-746 p.Article in journal (Refereed) Published
Abstract [en]

Current cell therapy protocols require considerable numbers of mesenchymal stromal cells (MSCs), which can be obtained only by in vitro expansion. The most important issue is a choice of optimal growth supplements for cell culture. Ideally, these should be of known composition, free of animal components and allow production of large homogenic populations of MSCs in a considerably short period of time. Since this standard has not been achieved to date, we aimed to assess the molecular responses of MSCs to different growth supplements commonly in use. MSCs were isolated from breast or abdominal adipose tissue and plated into DMEM supplemented with one of four different sera: fetal calf serum (FCS), pretested fetal calf serum (FCS-Sp), human allogeneic serum (HS) or artificial serum substitute (AS). MSCs cultivated with different serum supplements demonstrated distinct morphologies, high adipogenic and osteogenic differentiation potential and expressed characteristic antigens. Using real-time PCR, we found a large increase in PPAR gamma and Msx2 gene expression in both lines of proliferating MSCs cultivated with AS. We found that MSCs cultivated in the presence of different sera had similar global proteomic expression patterns, but comparisons of identified proteins revealed most differences in the MSCs cultivated with AS. Our results indicate that MSCs cultivated in the presence of FCS and HS display similar growth, differentiation, immunophenotypic and proteomic properties, while AS induces more profound changes in the physiology of MSCs, suggesting that further fundamental studies should be done before its introduction into clinical practice.

Place, publisher, year, edition, pages
John Wiley and Sons , 2011. Vol. 5, no 9, 733-746 p.
Keyword [en]
mesenchymal stromal cell, adipose tissue, regenerative medicine, serum substitute, differentiation marker, tissue engineering
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-71793DOI: 10.1002/term.374ISI: 000295888300008OAI: diva2:454000
Funding Agencies|Lithuanian State Science and Studies Foundation|B-25/2009C-04/2009|Swedish Research Council||Swedish Institute|1398/2007879/2009|Available from: 2011-11-04 Created: 2011-11-04 Last updated: 2011-11-04

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Magnusson, Karl-Eric
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Medical MicrobiologyFaculty of Health Sciences
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