title: Cardiac mesenchymal progenitors from postmortem cardiac tissues retained cellular characterization.
abstract: OBJECTIVE
  Currently, cells for transplantation in regenerative medicine are derived from either autologous or allogeneic tissue. The former has the drawbacks that the quality of donor cells may depend on the condition of the patient, while the quantity of the cells may also be limited. To solve these problems, we investigated the potential of allogeneic cardiac mesenchymal progenitors (CMPs) derived from postmortem hearts, which may be immunologically privileged similar to bone marrow-derived mesenchymal progenitors.
  
  
  METHODS
  We examined whether viable CMPs could be isolated from C57/B6 murine cardiac tissues harvested at 24 hours postmortem. After 2- to 3-week propagation with a high dose of basic fibroblast growth factor, we performed cellular characteristics analyses, which included proliferation and differentiation property flow cytometry and microarray analyses.
  
  
  RESULTS
  Postmortem CMPs had a longer lag phase after seeding than CMPs obtained from living tissues, but otherwise had similar characteristics in all the analyses. In addition, global gene expression analysis by microarray showed that cells derived from postmortem and living tissues had similar characteristics.
  
  
  CONCLUSIONS
  These results indicate that allogeneic postmortem CMPs have potential for cell transplantation because they circumvent the issue of both the quality and quantity of donor cells.
authors.affiliation: Department of Regenerative Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
authors.forename: D
authors.initials: D
authors.lastname: Kami
authors.affiliation: Department of Regenerative Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Kitani
authors.affiliation: Department of Regenerative Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Nakata
authors.affiliation: Department of Regenerative Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan. Electronic address: gojos@koto.kpu-m.ac.jp.
authors.forename: S
authors.initials: S
authors.lastname: Gojo
mesh_terms: D000818:Animals; D000954:Antigens, Surface / Q000378:metabolism; D002454:Cell Differentiation; D049109:Cell Proliferation; D002469:Cell Separation; D002470:Cell Survival; D002478:Cells, Cultured; D016222:Fibroblast Growth Factor 2 / Q000494:pharmacology; D005786:Gene Expression Regulation; D005819:Genetic Markers; D059630:Mesenchymal Stem Cells / Q000187:drug effects / Q000276:immunology / Q000502:physiology*; D008810:Mice, Inbred C57BL; D032383:Myocytes, Cardiac / Q000187:drug effects / Q000276:immunology / Q000502:physiology*; D010641:Phenotype; D011180:Postmortem Changes; D013997:Time Factors
chemical_list: D000954:Antigens, Surface; D005819:Genetic Markers; D016222:Fibroblast Growth Factor 2