title: Derivation, characterization, and differentiation of human embryonic stem cells.
abstract: The derivation of human embryonic stem (hES) cells establishes a new avenue to approach many issues in human biology and medicine for the first time. To meet the increased demand for characterized hES cell lines, we present the derivation and characterization of six hES cell lines. In addition to the previously described immunosurgery procedure, we were able to propagate the inner cell mass and establish hES cell lines from pronase-treated and hatched blastocysts. The cell lines were extensively characterized by expression analysis of markers characteristic for undifferentiated and differentiated hES cells, karyotyping, telomerase activity measurement, and pluripotency assays in vitro and in vivo. Whereas three of the cell lines expressed all the characteristics of undifferentiated pluripotent hES cells, one cell line carried a chromosome 13 trisomy while maintaining an undifferentiated pluripotent state, and two cell lines, one of which carried a triploid karyotype, exhibited limited pluripotency in vivo. Furthermore, we clonally derived one cell line, which could be propagated in an undifferentiated pluripotent state.
authors.affiliation: Cellartis AB, Göteborg, Sweden.
authors.forename: Nico
authors.initials: N
authors.lastname: Heins
authors.forename: Mikael C O
authors.initials: MC
authors.lastname: Englund
authors.forename: Cecilia
authors.initials: C
authors.lastname: Sjöblom
authors.forename: Ulf
authors.initials: U
authors.lastname: Dahl
authors.forename: Anna
authors.initials: A
authors.lastname: Tonning
authors.forename: Christina
authors.initials: C
authors.lastname: Bergh
authors.forename: Anders
authors.initials: A
authors.lastname: Lindahl
authors.forename: Charles
authors.initials: C
authors.lastname: Hanson
authors.forename: Henrik
authors.initials: H
authors.lastname: Semb
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000166:cytology / Q000378:metabolism; D002454:Cell Differentiation / Q000502:physiology; D002460:Cell Line; D019070:Cell Lineage / Q000502:physiology; D018920:Coculture Techniques; D004622:Embryo, Mammalian / Q000166:cytology / Q000378:metabolism; D005347:Fibroblasts / Q000166:cytology; D006801:Humans; D007150:Immunohistochemistry; D007621:Karyotyping; D051379:Mice; D039904:Pluripotent Stem Cells / Q000166:cytology / Q000378:metabolism; D033581:Stem Cell Transplantation; D019098:Telomerase / Q000378:metabolism; D014183:Transplantation, Heterologous
chemical_list: D019098:Telomerase