Journal: PLoS ONE
Article Title: MUC1* Ligand, NM23-H1, Is a Novel Growth Factor That Maintains Human Stem Cells in a More Naïve State
doi: 10.1371/journal.pone.0058601
Figure Lengend Snippet: a ) Conditioned media from either murine (MEFs) or human (HS27) embryonic fibroblast cells was immuno-depleted of NM23-H1. Western blot confirmed that the depleted media no longer contains NM23-H1. b ) NM23-H1 was captured by affinity chromatography, eluted and its concentration quantified by the optical density at 280nm. Human conditioned media contains 5-times more NM23-H1 than murine conditioned media. Human ES cells on Matrigel were cultured with: c, d ) NM23-H1-depleted media, e, f ) bFGF plus complete conditioned media. NM23-H1-depleted conditioned media induced differentiation ( c, d ).
Article Snippet: Human ES cells, H9 (WiCell), BGO1V/hOG cells (Life Technologies), human iPS cells, FTD19 clone 42 and ESIMR90 clone 4, (Kosik Lab) were cultured at 37°C and 5% CO 2 on mitomycin-C inactivated Hs27 human foreskin fibroblasts or MEFs (ATCC), Matrigel (BD Biosciences) per manufacturer's instructions, Vitronectin at (6.25 μg or 12.5 μg), or anti-MUC1* mab MN-C3 (12.5 μg/well) coated onto 6-well plates (Vita plates, ThermoFisher; or BD Falcon # 353046).
Techniques: Western Blot, Affinity Chromatography, Concentration Assay, Cell Culture