title: [The cultivation, freezing-state preservation and resuscitation of human iris pigment epithelial cells in vitro].
abstract: OBJECTIVE
  To establish the culture of human iris pigment epithelial cells in vitro and study the freezing-state preservation and resusciation.
  
  
  METHODS
  The iris pigment epithelial specimens from human eyes were cultured in vitro. Based on the cell-frozen principle, the cultured cells were collected, then frozen in liquid nitrogen and resuscitation.
  
  
  RESULTS
  Cultured iris pigment epithelial cells were obtained. Under the inverted light microscope, primary cells appeared multigonal and arranged in monolayer, there were abundant pigment granules in the cytoplasm and the nuclei each of which contained 1 or 2 nuceoli wre relatively transparent. Under the transmission electron microscope, there were plenty of microvilli at the cell membrane and desmosomes present in the intercellular space. 6 groups of cells were frozen. The resuscitation exeriment was carried out for 4 times, every times being successful. All of the resuscitated rates were more than 90%.
  
  
  CONCLUSIONS
  The human iris pigment epithelial cells were cultured in vitro successfully, they can also be frozen and resuscitated, which will be useful in studies of pathogenesis for some eye disease.
authors.affiliation: Zhongshan Opthalmic Center, Sun Yat-sen University of Medical Science, Guang zhou 510060, China.
authors.forename: L
authors.initials: L
authors.lastname: Li
authors.forename: J
authors.initials: J
authors.lastname: Ge
authors.forename: Y
authors.initials: Y
authors.lastname: Zhuo
authors.forename: M
authors.initials: M
authors.lastname: Lin
authors.forename: J
authors.initials: J
authors.lastname: Zheng
mesh_terms: D002478:Cells, Cultured; D015925:Cryopreservation; D006801:Humans; D007498:Iris / Q000166:cytology*; D010857:Pigment Epithelium of Eye / Q000166:cytology* / Q000648:ultrastructure