Table 2.
Growth factors and reagents for in vitro intestinal epithelial stem cell assay
| Reagent | Category | Function |
|---|---|---|
| Matrigel | Extracellular matrix | Structural support of IESCs through laminins (23) |
| R-spondin 1 (Rspo1) | Growth factor | Stimulates canonical Wnt signaling (24) |
| Jagged-1 peptide | Growth factor | Inhibits premature IESCs differentiation (25) |
| Noggin 1 | Growth factor | Known to cause crypt expansion in vivo (26) |
| Epidermal growth factor (EGF) | Growth factor | Stimulates intestinal growth in vivo (27) |
| Wnt3a | Growth factor | Provides mitogenic signals to IESCs (7) |
| B27 | Media supplement | Supplements for serum-free media (28) |
| N2 | Media supplement | Supplements for serum-free media (29) |
| HEPES | Media supplement | Maintains proper pH of IESC growth media |
| Y-27632 | Anoikis inhibitor | Inhibits apoptotic response to epithelial dissociation (30) |