Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2006-11-23
pubmed:abstractText
Human embryonic stem cells (hESCs) are immortal cells capable of perpetual self-renewal in culture while maintaining their undifferentiated state, high telomerase activity, normal karyotype, and specific pattern expression of embryonic surface markers and pluripotent transcription factors such as Oct-4 and Nanog. Since their first derivation in 1998, hundreds of hESC lines have been derived and characterized. Normal surplus embryos from IVF programs are the main source for the derivation of hESC lines but cell lines from poor-quality discarded embryos or embryos carrying genetic defects following preimplantation genetic diagnosis were also isolated. Such isolation is usually accomplished by either mechanical or immunosurgical removal of the trophectoderm and culture of the inner cell mass on inactivated feeder cells. In light of the future need for clinical-grade cells, the subject of defining specific culture conditions has been addressed widely. Indeed, derivation and maintenance of hESCs without feeder cells and in media free of animal products have been attained recently. This well-defined culture system may facilitate research and clinical applications, and use the remarkable potential of these exceptional cells to its fullest in both the laboratory and the clinic.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
1526-8004
pubmed:author
pubmed:issnType
Print
pubmed:volume
24
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
298-303
pubmed:dateRevised
2007-12-3
pubmed:meshHeading
pubmed:year
2006
pubmed:articleTitle
Sources, derivation, and culture of human embryonic stem cells.
pubmed:affiliation
Department of Obstetrics and Gynecology, Rambam Medical Center, Haifa, and the Sohnis and Forman Families Stem Cell Center, Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
pubmed:publicationType
Journal Article, Review, Research Support, N.I.H., Extramural