| Antibodies | Dilution | Suppliers |
| Notch receptor1 | 1 : 50 | R&D System, Minneapolis, MN, USA | Notch receptor4 | 1 : 50 | Cell Signaling, Beverly, MA, USA | Delta-like1 | 1 : 500 | Rockland, Gilbertsville, PA, USA | Delta-like4 | 1 : 500 | Rockland, Gilbertsville, PA, USA | Jagged1 | 1 : 500 | Rockland, Gilbertsville, PA, USA | Hes1 | 1 : 200 | Abcam, Cambridge, UK | Caspase3 | 1 : 500 | Abcam, Cambridge, UK | CD31 | 1 : 1,000 | Abcam, Cambridge, UK | Alexa Fluor 488 goat anti-rabbit IgG | 1 : 800 | Molecular Probes, Eugene, OR, USA | Alexa Fluor 594 goat anti-mouse IgG | 1 : 800 | Molecular Probes, Eugene, OR, USA |
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