title: The Supportive Role of Insulin-Like Growth Factor-I in the Differentiation of Murine Mesenchymal Stem Cells into Corneal-Like Cells.
abstract: This study was focused on characterizing the differentiation of bone marrow-derived mesenchymal stem cells (MSCs) into corneal-like cells. Mouse MSCs were isolated from the bone marrow, grown in cell culture for 3 weeks, and purified using a magnetic activated cell sorter. Purified MSCs were cultured with an extract prepared from excised corneas and in the presence or absence of insulin-like growth factor-I (IGF-I). Analysis by quantitative real-time polymerase chain reaction showed that the expression of corneal specific markers, such as cytokeratin 12 (K12), keratocan, and lumican, was already induced after a 3-day cultivation and gradually increased during the 10-day incubation of MSCs with the extract. The presence of IGF-I significantly increased differentiation. Immunofluorescence analysis of differentiated MSCs showed positive results for the K12 protein. The morphology of the differentiated cells and the expression of cell surface markers CD45, CD11b, CD73, CD44, and CD105 were comparable in the control and differentiated MSCs. Proliferative activity was even higher in differentiated cells than in untreated MSCs. Both untreated and differentiated MSCs inhibited the production of interleukin-2 and interferon-γ in spleen cells stimulated with Concanavalin A. The results thus show that MSCs cultured in the presence of corneal extract and IGF-I efficiently differentiate into corneal-like cells. The differentiated cells possess characteristics of corneal epithelial cells and keratocytes, while at the same time maintaining MSC properties.
authors.affiliation: 1 Department of Transplantation Immunology, Institute of Experimental Medicine , Academy of Sciences of the Czech Republic, Prague, Czech Republic .|2 Department of Cell Biology, Faculty of Science, Charles University , Prague, Czech Republic .|3 Laboratory of the Biology and Pathology of the Eye, First Faculty of Medicine, Institute of Inherited Metabolic Disorders, General University Hospital in Prague, Charles University in Prague , Prague, Czech Republic .
authors.forename: Peter
authors.initials: P
authors.lastname: Trosan
authors.affiliation: 1 Department of Transplantation Immunology, Institute of Experimental Medicine , Academy of Sciences of the Czech Republic, Prague, Czech Republic .|2 Department of Cell Biology, Faculty of Science, Charles University , Prague, Czech Republic .
authors.forename: Eliska
authors.initials: E
authors.lastname: Javorkova
authors.affiliation: 1 Department of Transplantation Immunology, Institute of Experimental Medicine , Academy of Sciences of the Czech Republic, Prague, Czech Republic .
authors.forename: Alena
authors.initials: A
authors.lastname: Zajicova
authors.affiliation: 1 Department of Transplantation Immunology, Institute of Experimental Medicine , Academy of Sciences of the Czech Republic, Prague, Czech Republic .|2 Department of Cell Biology, Faculty of Science, Charles University , Prague, Czech Republic .
authors.forename: Michaela
authors.initials: M
authors.lastname: Hajkova
authors.affiliation: 1 Department of Transplantation Immunology, Institute of Experimental Medicine , Academy of Sciences of the Czech Republic, Prague, Czech Republic .|2 Department of Cell Biology, Faculty of Science, Charles University , Prague, Czech Republic .
authors.forename: Barbora
authors.initials: B
authors.lastname: Hermankova
authors.affiliation: 1 Department of Transplantation Immunology, Institute of Experimental Medicine , Academy of Sciences of the Czech Republic, Prague, Czech Republic .|2 Department of Cell Biology, Faculty of Science, Charles University , Prague, Czech Republic .
authors.forename: Jan
authors.initials: J
authors.lastname: Kossl
authors.affiliation: 1 Department of Transplantation Immunology, Institute of Experimental Medicine , Academy of Sciences of the Czech Republic, Prague, Czech Republic .|2 Department of Cell Biology, Faculty of Science, Charles University , Prague, Czech Republic .
authors.forename: Magdalena
authors.initials: M
authors.lastname: Krulova
authors.affiliation: 1 Department of Transplantation Immunology, Institute of Experimental Medicine , Academy of Sciences of the Czech Republic, Prague, Czech Republic .|2 Department of Cell Biology, Faculty of Science, Charles University , Prague, Czech Republic .
authors.forename: Vladimir
authors.initials: V
authors.lastname: Holan
mesh_terms: D000818:Animals; D015415:Biomarkers / Q000378:metabolism; D002454:Cell Differentiation / Q000187:drug effects* / Q000235:genetics; D049109:Cell Proliferation / Q000187:drug effects / Q000235:genetics; D048430:Cell Shape / Q000187:drug effects / Q000235:genetics; D003315:Cornea / Q000166:cytology*; D005260:Female; D005786:Gene Expression Regulation / Q000187:drug effects; D007165:Immunosuppression Therapy; D007334:Insulin-Like Growth Factor I / Q000494:pharmacology*; D008297:Male; D059630:Mesenchymal Stem Cells / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism; D008807:Mice, Inbred BALB C
chemical_list: D015415:Biomarkers; D007334:Insulin-Like Growth Factor I