title: GFP Labeling and Hepatic Differentiation Potential of Human Placenta-Derived Mesenchymal Stem Cells.
abstract: BACKGROUND
  Stem cell-based therapy in liver diseases has received increasing interest over the past decade, but direct evidence of the homing and implantation of transplanted cells is conflicting. Reliable labeling and tracking techniques are essential but lacking. The purpose of this study was to establish human placenta-derived mesenchymal stem cells (hPMSCs) expressing green fluorescent protein (GFP) and to assay their hepatic functional differentiation in vitro.
  
  
  METHODS
  The GFP gene was transduced into hPMSCs using a lentivirus to establish GFP(+) hPMSCs. GFP(+) hPMSCs were analyzed for their phenotypic profile, viability and adipogenic, osteogenic and hepatic differentiation. The derived GFP(+) hepatocyte-like cells were evaluated for their metabolic, synthetic and secretory functions, respectively.
  
  
  RESULTS
  GFP(+) hPMSCs expressed high levels of HLA I, CD13, CD105, CD73, CD90, CD44 and CD29, but were negative for HLA II, CD45, CD31, CD34, CD133, CD271 and CD79. They possessed adipogenic, osteogenic and hepatic differentiation potential. Hepatocyte-like cells derived from GFP(+) hPMSCs showed typical hepatic phenotypes.
  
  
  CONCLUSIONS
  GFP gene transduction has no adverse influences on the cellular or biochemical properties of hPMSCs or markers. GFP gene transduction using lentiviral vectors is a reliable labeling and tracking method. GFP(+) hPMSCs can therefore serve as a tool to investigate the mechanisms of MSC-based therapy, including hepatic disease therapy.
authors.affiliation: The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University; Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou City, China.
authors.forename: Jiong
authors.initials: J
authors.lastname: Yu
authors.forename: Xiaoru
authors.initials: X
authors.lastname: Su
authors.forename: Chengxing
authors.initials: C
authors.lastname: Zhu
authors.forename: Qiaoling
authors.initials: Q
authors.lastname: Pan
authors.forename: Jinfeng
authors.initials: J
authors.lastname: Yang
authors.forename: Jing
authors.initials: J
authors.lastname: Ma
authors.forename: Leyao
authors.initials: L
authors.lastname: Shen
authors.forename: Hongcui
authors.initials: H
authors.lastname: Cao
authors.forename: Lanjuan
authors.initials: L
authors.lastname: Li
mesh_terms: D050156:Adipogenesis / Q000502:physiology; D015703:Antigens, CD / Q000378:metabolism; D002454:Cell Differentiation / Q000502:physiology*; D002470:Cell Survival / Q000502:physiology; D002478:Cells, Cultured; D005260:Female; D049452:Green Fluorescent Proteins / Q000378:metabolism*; D022781:Hepatocytes / Q000378:metabolism / Q000502:physiology*; D006801:Humans; D059630:Mesenchymal Stem Cells / Q000378:metabolism / Q000502:physiology*; D010012:Osteogenesis / Q000502:physiology; D010920:Placenta / Q000378:metabolism / Q000502:physiology*; D011247:Pregnancy
chemical_list: D015703:Antigens, CD; D049452:Green Fluorescent Proteins