title: In vitro deregulation of markers characteristic of human prostate epithelial cells.
abstract: We have screened primary cultures of human prostate for the expression of markers reported to be characteristic of specific cell lineages in vivo, in order to ascertain whether human prostate cells in vitro maintain and reflect their in vivo differentiated phenotypes and to evaluate the homogeneity of the populations of cells that can be derived from this tissue. Using single and dual stain immunofluorescent microscopy to analyse very early organoid and subsequently derived monolayer stage cultures, we have observed that expression of markers characteristic of human prostate epithelial cells in vivo is deregulated within 48h, indicating that dissociation of human prostate tissue and cultivation of prostate epithelial cells in culture can result in promiscuous expression of cell type specific markers of prostate epithelial cells. These observations have important implications for studies of cell lineage and differentiation of prostate cells in vitro.
authors.affiliation: Cancer Cell Biology Section, Division of Medicine, Faculty of Medicine, Imperial College, Hammersmith Campus, 5th floor, Cyclotron Building, Du Cane Road, London W12 0NN, UK.
authors.forename: Tarin A
authors.initials: TA
authors.lastname: Islam
authors.forename: Anup
authors.initials: A
authors.lastname: Patel
authors.forename: Amir V
authors.initials: AV
authors.lastname: Kaisary
authors.forename: Angeles
authors.initials: A
authors.lastname: Mondragon
authors.forename: Jonathan
authors.initials: J
authors.lastname: Waxman
authors.forename: Tahereh
authors.initials: T
authors.lastname: Kamalati
mesh_terms: D000943:Antigens, Differentiation / Q000096:biosynthesis*; D002454:Cell Differentiation; D002478:Cells, Cultured; D004847:Epithelial Cells / Q000166:cytology / Q000502:physiology; D006801:Humans; D008297:Male; D009940:Organoids / Q000166:cytology / Q000502:physiology; D011467:Prostate / Q000166:cytology*
chemical_list: D000943:Antigens, Differentiation