Summary: Stem cells are traditionally co-cultured with “feeder” cells (usually fibroblasts) derived from mouse or human. The feeder cells provide secreted factors, extracellular matrix, and cellular contacts for the maintenance of stem cells in the undifferentiated state without losing pluripotency. However feeder cells may poses a risk of cross-contamination such as passing animal pathogens to human embryonic stem (hES) cells hindering clinical application of hES cells. Feeder-free stem cell culture is a system for maintaining stem cells in the undifferentiated state without the need for direct contact with feeder cells. The medium for feeder-free stem cell culture is either conditioned by contact with mouse or human feeder cells, so called conditioned medium (CM), or supplemented with different growth factors and other signal transduction factors.
Protocols
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Culture of Feeder-Independent Embryonic Stem Cells
(BayGenomic, UCSF)
Geeder-independent ES cells are easy to maintain and requires significantly less amount of tissue culture. This protocol provides ES cell culture procedure as well as medium and reagents.
http://baygenomics.ucsf.edu/protocols/comp1/feeder...
Added: Wed Jan 28 2009, Hits: 1634, Reviews: 0 Write review Cached -
Feeder-Free Culture of hESCs and iPSCs
(NIH Stem Cell Information)
Pluripotent stem cell colonies may be cultured feeder-free on 1.25% Matrigel in mTeSR1 medium
http://stemcells.nih.gov/research/nihresearch/scun...
Added: Thu Jan 29 2009, Hits: 1551, Reviews: 0 Write review Cached -
Procedure for Culturing BG01V Human Embryonic Stem Cells with Human Feeder Cell Conditioned Medium
(R&D System)
Culturing ES cells in mouse or human feeder cell conditioned medium without feeder layer.
http://www.rndsystems.com/stem_cell_protocol_detai...
Added: Fri Feb 06 2009, Hits: 1189, Reviews: 0 Write review Cached