PMID- 2129226 OWN - NLM STAT- MEDLINE DCOM- 19910821 LR - 20220215 IS - 0950-1991 (Print) IS - 0950-1991 (Linking) VI - 110 IP - 4 DP - 1990 Dec TI - Establishment of germ-line-competent embryonic stem (ES) cells using differentiation inhibiting activity. PG - 1341-8 AB - The regulatory factor Differentiation Inhibiting Activity/Leukaemia Inhibitory Factor (DIA/LIF) suppresses the differentiation of cultured embryonic stem (ES) cells. In the present study, it is shown that ES cell lines can be derived and maintained in the absence of feeder layers using medium supplemented with purified DIA/LIF. These cells can differentiate normally in vitro and in vivo and they retain the capacity for germ-line transmission. DIA/LIF therefore fulfils the essential function of feeders in the isolation of pluripotential stem cells. FAU - Nichols, J AU - Nichols J AD - Department of Zoology, University of Oxford, UK. FAU - Evans, E P AU - Evans EP FAU - Smith, A G AU - Smith AG LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Development JT - Development (Cambridge, England) JID - 8701744 RN - 0 (Culture Media) RN - 0 (Growth Inhibitors) RN - 0 (Interleukin-6) RN - 0 (Leukemia Inhibitory Factor) RN - 0 (Lif protein, mouse) RN - 0 (Lymphokines) SB - IM MH - Animals MH - Cell Differentiation/drug effects MH - Cell Line MH - Cells, Cultured MH - Chimera MH - Culture Media MH - *Growth Inhibitors MH - *Interleukin-6 MH - Karyotyping MH - Leukemia Inhibitory Factor MH - Lymphokines/*physiology MH - Mice MH - Stem Cells/*physiology/ultrastructure EDAT- 1990/12/01 00:00 MHDA- 1990/12/01 00:01 CRDT- 1990/12/01 00:00 PHST- 1990/12/01 00:00 [pubmed] PHST- 1990/12/01 00:01 [medline] PHST- 1990/12/01 00:00 [entrez] AID - 10.1242/dev.110.4.1341 [doi] PST - ppublish SO - Development. 1990 Dec;110(4):1341-8. doi: 10.1242/dev.110.4.1341.