title: Evaluation of chemokine and cytokine profiles in osteoblast progenitors from umbilical cord blood stem cells by BIO-PLEX technology.
abstract: 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-gamma. These findings should encourage the use of human umbilical cord blood as a potential stem cells source for bone regeneration.
authors.affiliation: Department of Biochemistry and Molecular Biology, Molecular Biology Section, University of Ferrara, Via Fossato di Mortara, 74, Ferrara, Italy.
authors.forename: Letizia
authors.initials: L
authors.lastname: Penolazzi
authors.forename: Elisabetta
authors.initials: E
authors.lastname: Lambertini
authors.forename: Elisa
authors.initials: E
authors.lastname: Tavanti
authors.forename: Elena
authors.initials: E
authors.lastname: Torreggiani
authors.forename: Fortunato
authors.initials: F
authors.lastname: Vesce
authors.forename: Roberto
authors.initials: R
authors.lastname: Gambari
authors.forename: Roberta
authors.initials: R
authors.lastname: Piva
mesh_terms: D015415:Biomarkers / Q000378:metabolism; D002478:Cells, Cultured; D018925:Chemokines / Q000378:metabolism*; D016207:Cytokines / Q000378:metabolism*; D005312:Fetal Blood / Q000166:cytology*; D006801:Humans; D010006:Osteoblasts / Q000166:cytology / Q000502:physiology*; D040081:Protein Array Analysis / Q000379:methods*; D013234:Stem Cells / Q000166:cytology / Q000502:physiology*
chemical_list: D015415:Biomarkers; D018925:Chemokines; D016207:Cytokines