title: Immortalization of bone marrow-derived porcine mesenchymal stem cells and their differentiation into cells expressing cardiac phenotypic markers.
abstract: Mesenchymal stem cells (MSCs) may be among the first stem cell types to be utilized in the clinic for cell therapy, because of their ease of isolation and extensive differentiation potential. Using a porcine model, we have established several cell lines from MSCs to facilitate in vitro and in vivo studies of their potential use for cellular therapy. Bone marrow-derived primary MSCs were immortalized using the pRNS-1 plasmid. We obtained four stable immortalized cell lines that exhibited higher proliferative capacities than the parental cells. All four cell lines displayed a common phenotype similar to that of primary mesenchymal cells, characterized by constitutively high expressions of CD90, CD29, CD44, SLA I and CD46, while CD172a, CD106 and CD56 were less expressed. Remarkably, treatment with 5-azacytidine-stimulated porcine MSCs lines to differentiate into cells that were positive for cardiac phenotypic markers, such as α-actin, connexin-43, sarcomeric actin, serca-2 and, to a lesser extent, desmin and troponin-T. These porcine MSC lines will be valuable biological tools for developing strategies for ex vivo expansion and differentiation of MSCs into a specific lineage.
authors.affiliation: Unidad de Investigación, INIBIC-Complejo Universitario Universitario A Coruña, Spain.
authors.forename: Isabel
authors.initials: I
authors.lastname: Moscoso
authors.forename: Jose-Ignacio
authors.initials: JI
authors.lastname: Rodriguez-Barbosa
authors.forename: Javier
authors.initials: J
authors.lastname: Barallobre-Barreiro
authors.forename: Patricia
authors.initials: P
authors.lastname: Anon
authors.forename: Nieves
authors.initials: N
authors.lastname: Domenech
mesh_terms: D017667:Adipocytes / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D000818:Animals; D001374:Azacitidine / Q000494:pharmacology; D015415:Biomarkers / Q000378:metabolism; D001854:Bone Marrow Cells / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism; D002454:Cell Differentiation / Q000187:drug effects; D002461:Cell Line, Transformed; D019070:Cell Lineage / Q000187:drug effects; D049109:Cell Proliferation / Q000187:drug effects; D048430:Cell Shape / Q000187:drug effects; D019902:Chondrocytes / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D059630:Mesenchymal Stem Cells / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism; D009206:Myocardium / Q000166:cytology*; D032383:Myocytes, Cardiac / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D010011:Osteocytes / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D010641:Phenotype; D010957:Plasmids / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D034421:Sus scrofa
chemical_list: D015415:Biomarkers; D001374:Azacitidine