title: Functional recapitulation of smooth muscle cells via induced pluripotent stem cells from human aortic smooth muscle cells.
abstract: BACKGROUND
  Generation of induced pluripotent stem (iPS) cells has been intensively studied by a variety of reprogramming methods, but the molecular and functional properties of the cells differentiated from iPS cells have not been well characterized.
  
  
  OBJECTIVE
  To address this issue, we generated iPS cells from human aortic vascular smooth muscle cells (HASMCs) using lentiviral transduction of defined transcription factors and differentiated these iPS cells back into smooth muscle cells (SMCs).
  
  
  RESULTS
  Established iPS cells were shown to possess properties equivalent to human embryonic stem cells, in terms of the cell surface markers, global mRNA and microRNA expression patterns, epigenetic status of OCT4, REX1, and NANOG promoters, and in vitro/in vivo pluripotency. The cells were differentiated into SMCs to enable a direct, comparative analysis with HASMCs, from which the iPS cells originated. We observed that iPS cell-derived SMCs were very similar to parental HASMCs in gene expression patterns, epigenetic modifications of pluripotency-related genes, and in vitro functional properties. However, the iPS cells still expressed a significant amount of lentiviral transgenes (OCT4 and LIN28) because of partial gene silencing.
  
  
  CONCLUSIONS
  Our study reports, for the first time, the generation of iPS cells from HASMCs and their differentiation into SMCs. Moreover, a parallel comparative analysis of human iPS cell-derived SMCs and parental HASMCs revealed that iPS-derived cells possessed representative molecular and in vitro functional characteristics of parental HASMCs, suggesting that iPS cells hold great promise as an autologous cell source for patient-specific cell therapy.
authors: Department of Molecular and Life Science, CHA Stem Cell Institute, Pochon CHA University, Seoul, Korea. thlee14@yonsei.ac.kr
authors: Tae-Hee
authors: TH
authors: Lee
authors: Sun-Hwa
authors: SH
authors: Song
authors: Koung Li
authors: KL
authors: Kim
authors: Ji-Yeun
authors: JY
authors: Yi
authors: Ga-Hee
authors: GH
authors: Shin
authors: Ji Yeon
authors: JY
authors: Kim
authors: Jihoon
authors: J
authors: Kim
authors: Yong-Mahn
authors: YM
authors: Han
authors: Sang Hun
authors: SH
authors: Lee
authors: Suk-Ho
authors: SH
authors: Lee
authors: Sung Han
authors: SH
authors: Shim
authors: Wonhee
authors: W
authors: Suh
mesh_terms: D000818:Animals; D001011:Aorta / Q000166:cytology / Q000378:metabolism*; D002454:Cell Differentiation; D005786:Gene Expression Regulation / Q000235:genetics; D018398:Homeodomain Proteins / Q000096:biosynthesis / Q000235:genetics; D006801:Humans; D057026:Induced Pluripotent Stem Cells / Q000166:cytology / Q000378:metabolism*; D051741:Kruppel-Like Transcription Factors / Q000096:biosynthesis / Q000235:genetics; D016086:Lentivirus; D051379:Mice; D035683:MicroRNAs / Q000096:biosynthesis / Q000235:genetics; D032389:Myocytes, Smooth Muscle / Q000166:cytology / Q000378:metabolism*; D000071317:Nanog Homeobox Protein; D050814:Octamer Transcription Factor-3 / Q000096:biosynthesis / Q000235:genetics; D011401:Promoter Regions, Genetic; D012333:RNA, Messenger / Q000096:biosynthesis / Q000235:genetics; D016601:RNA-Binding Proteins / Q000096:biosynthesis / Q000235:genetics; D014161:Transduction, Genetic
chemical_list: D018398:Homeodomain Proteins; D051741:Kruppel-Like Transcription Factors; C000715187:Lin28A protein, human; D035683:MicroRNAs; C486780:NANOG protein, human; D000071317:Nanog Homeobox Protein; D050814:Octamer Transcription Factor-3; C494173:POU5F1 protein, human; D012333:RNA, Messenger; D016601:RNA-Binding Proteins; C507976:ZFP42 protein, human