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Evaluation of chemokine and cytokine profiles in osteoblast progenitors from umbilical cord blood stem cells by BIO‐PLEX technology
Author(s) -
Penolazzi Letizia,
Lambertini Elisabetta,
Tavanti Elisa,
Torreggiani Elena,
Vesce Fortunato,
Gambari Roberto,
Piva Roberta
Publication year - 2008
Publication title -
cell biology international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.932
H-Index - 77
eISSN - 1095-8355
pISSN - 1065-6995
DOI - 10.1016/j.cellbi.2007.08.030
Subject(s) - mesenchymal stem cell , microbiology and biotechnology , stem cell , progenitor cell , immunology , osteoblast , umbilical cord , biology , cytokine , cord blood , chemokine , immune system , in vitro , biochemistry
We have used cytokine protein array to analyze the secretion of cytokines from an osteoblastic clone derived from human umbilical cord blood mesenchymal stem cells (MSCs) cultured in an osteogenic differentiation medium. The analysis demonstrated the unexpected ability of osteoblast committed cells and their early progenitors to produce significant amounts of a range of soluble immune mediators without in vitro exposure to clinically relevant bacterial pathogens. The cells were expanded and their osteogenic potential analyzed over 45 days of culture was revealed by the expression of osteoblast‐specific markers (alkaline phosphatase and Runx2), and by matrix mineralization. Over this culture period, the cells secreted particularly high levels of IL‐8, MCP‐1 and VEGF, but did not express IL‐2, IL‐7, IL‐17, eotaxin, G‐CSF and IFN‐γ. These findings should encourage the use of human umbilical cord blood as a potential stem cells source for bone regeneration.