title: Human Cardiac Mesenchymal Stromal Cells with CD105+CD34- Phenotype Enhance the Function of Post-Infarction Heart in Mice.
abstract: OBJECTIVE
  The aim of the present study was to isolate mesenchymal stromal cells (MSC) with CD105+CD34- phenotype from human hearts, and to investigate their therapeutic potential in a mouse model of hindlimb ischemia and myocardial infarction (MI). The study aimed also to investigate the feasibility of xenogeneic MSCs implantation.
  
  
  RESULTS
  MSC isolated from human hearts were multipotent cells. Separation of MSC with CD105+CD34- phenotype limited the heterogeneity of the originally isolated cell population. MSC secreted a number of anti-inflammatory and proangiogenic cytokines (mainly IL-6, IL-8, and GRO). Human MSC were transplanted into C57Bl/6NCrl mice. Using the mouse model of hindlimb ischemia it was shown that human MSC treated mice demonstrated a higher capillary density 14 days after injury. It was also presented that MSC administrated into the ischemic muscle facilitated fast wound healing (functional recovery by ischemic limb). MSC transplanted into an infarcted myocardium reduced the post-infarction scar, fibrosis, and increased the number of blood vessels both in the border area, and within the post-infarction scar. The improvement of left ventricular ejection fraction was also observed.
  
  
  CONCLUSIONS
  In two murine models (hindlimb ischemia and MI) we did not observe the xenotransplant rejection. Indeed, we have shown that human cardiac mesenchymal stromal cells with CD105+CD34- phenotype exhibit therapeutic potential. It seems that M2 macrophages are essential for healing and repair of the post-infarcted heart.
authors.affiliation: Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland.
authors.forename: Justyna
authors.initials: J
authors.lastname: Czapla
authors.affiliation: Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland.
authors.forename: Sybilla
authors.initials: S
authors.lastname: Matuszczak
authors.affiliation: Department of Cardiac Surgery and Transplantology, Silesian Center for Heart Diseases, Zabrze, Poland.
authors.forename: Ewa
authors.initials: E
authors.lastname: Wiśniewska
authors.affiliation: Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Jarosz-Biej
authors.affiliation: Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland.
authors.forename: Ryszard
authors.initials: R
authors.lastname: Smolarczyk
authors.affiliation: Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Cichoń
authors.affiliation: Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Głowala-Kosińska
authors.affiliation: Department of Cardiac Surgery and Transplantology, Silesian Center for Heart Diseases, Zabrze, Poland.
authors.forename: Joanna
authors.initials: J
authors.lastname: Śliwka
authors.affiliation: Department of Cardiac Surgery and Transplantology, Silesian Center for Heart Diseases, Zabrze, Poland.
authors.forename: Marcin
authors.initials: M
authors.lastname: Garbacz
authors.affiliation: Department of Cardiac Surgery and Transplantology, Silesian Center for Heart Diseases, Zabrze, Poland.
authors.forename: Mateusz
authors.initials: M
authors.lastname: Szczypior
authors.affiliation: Department of Cardiac Surgery and Transplantology, Silesian Center for Heart Diseases, Zabrze, Poland.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Jaźwiec
authors.affiliation: Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Langrzyk
authors.affiliation: Department of Cardiac Surgery and Transplantology, Silesian Center for Heart Diseases, Zabrze, Poland.
authors.forename: Michał
authors.initials: M
authors.lastname: Zembala
authors.affiliation: Center for Translational Research and Molecular Biology of Cancer, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, Gliwice Branch, Gliwice, Poland.
authors.forename: Stanisław
authors.initials: S
authors.lastname: Szala
mesh_terms: D000818:Animals; D018952:Antigens, CD34 / Q000378:metabolism*; D004195:Disease Models, Animal; D000071063:Endoglin / Q000378:metabolism*; D005355:Fibrosis / Q000473:pathology; D006801:Humans; D045164:Mesenchymal Stem Cell Transplantation / Q000379:methods*; D059630:Mesenchymal Stem Cells / Q000378:metabolism*; D051379:Mice; D008810:Mice, Inbred C57BL; D009203:Myocardial Infarction / Q000378:metabolism / Q000473:pathology / Q000628:therapy*; D009206:Myocardium / Q000473:pathology
chemical_list: D018952:Antigens, CD34; D000071063:Endoglin