Journal
TRANSLATIONAL STROKE RESEARCH
Volume 2, Issue 3, Pages 307-315Publisher
SPRINGER
DOI: 10.1007/s12975-011-0088-y
Keywords
Bone marrow stromal cells; Platelet lysate; Cell culture; Neurotransplantation; Autologous graft; Central nervous system disorders
Categories
Funding
- Ministry of Education, Science and Culture of Japan [19390371, 20390377, 20591701, 21390400]
- Grants-in-Aid for Scientific Research [19390371, 23390342, 21390400] Funding Source: KAKEN
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The donor cell culture in animal serum-free medium is quite important for the clinical application of cell transplantation therapy. This study was aimed to test the hypothesis that the human bone marrow stromal cells (hBMSC) expanded with fetal calf serum (FCS)-free, platelet lysate (PL)-containing medium retain their biological features favoring central nervous system regeneration. The hBMSC were cultured with 5% PL or 10% FCS. Their phenotypes were analyzed with flow cytometry, and their production of growth factors was quantified with enzyme-linked immunosorbent assay. Their capacity of neural differentiation was verified by immunocytochemistry. There was no significant difference in morphology and cell surface marker between the hBMSC-FCS and hBMSC-PL. Both of them were positive for CD44, CD90, CD105, and CD166 and were negative for CD34, CD45, and CD271. The production of human brain-derived neurotrophic factor, human hepatocyte growth factor, human beta-nerve growth factor, and human platelet-derived growth factor-BB did not differ between the two groups, although the hBMSC-PL produced significantly more amount of TGF-beta 1 than the hBMSC-FCS. There was no significant difference in their in vitro differentiation into the neurons and astrocytes between the two groups. The hBMSC expanded with PL-containing medium retain their biological capacity of neural differentiation and neuroprotection. The PL may be a clinically valuable and safe substitute for FCS in expanding the hBMSC for cell therapy.
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