title: Human neural crest stem cells transplanted in rat penile corpus cavernosum to repair erectile dysfunction.
abstract: OBJECTIVE
  To investigate the feasibility of applying neural crest stem cells (NCSCs), with multipotent capacity, to repair injury in the penile cavernosum, the HNC10.K10 (K10) immortalized NCSC line was transplanted into the penile cavernosum of adult rats, as one of the causes of erectile dysfunction is damaged penile cavernous smooth muscle cells and sinus endothelial cells.
  
  
  METHODS
  The K10 human NCSC line was generated via transfection of primary cultured NCSC with a retroviral vector encoding v-myc. K10 NCSCs were transplanted into the cavernosum of adult rats. The expression of cell type-specific markers for endothelial cells (CD31 and von Willebrand factor), and specific markers for smooth muscle cells (smooth muscle cell actin, calponin, and desmin) was determined immunohistochemically in the penile cavernosum of rats 2 weeks after transplantation.
  
  
  RESULTS
  In the rat cavernosum, transplanted K10 NCSCs identified by human nuclear antigen labelling expressed cell type-specific markers for endothelial cells (CD31 and von Willebrand factor), and specific markers for smooth muscle cells (smooth muscle cell actin, calponin, and desmin) 2 weeks after transplantation. Human NCSCs transplanted into the rat penile corpus cavernosum differentiated into endothelial cells or smooth muscle cells, as shown by their expression of cell type-specific markers for the cell types.
  
  
  CONCLUSIONS
  It appears that NCSCs are an ideal cell source for reconstructing endothelial and smooth muscle cells in the corpus cavernosum in cell therapy for patients with erectile dysfunction.
authors.affiliation: Department of Urology, Soonchunhyang University School of Medicine, Seoul, Korea.
authors.forename: Yun Seob
authors.initials: YS
authors.lastname: Song
authors.forename: Hong Jun
authors.initials: HJ
authors.lastname: Lee
authors.forename: In Ho
authors.initials: IH
authors.lastname: Park
authors.forename: Ik Sung
authors.initials: IS
authors.lastname: Lim
authors.forename: Ja Hyeon
authors.initials: JH
authors.lastname: Ku
authors.forename: Seung U
authors.initials: SU
authors.lastname: Kim
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D042783:Endothelial Cells / Q000502:physiology; D005240:Feasibility Studies; D006801:Humans; D018783:Impotence, Vasculogenic / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D032389:Myocytes, Smooth Muscle / Q000502:physiology*; D009432:Neural Crest / Q000637:transplantation*; D010410:Penile Erection / Q000502:physiology*; D010413:Penis / Q000503:physiopathology / Q000601:surgery*; D051381:Rats; D020133:Reverse Transcriptase Polymerase Chain Reaction; D033581:Stem Cell Transplantation / Q000379:methods*