Table I.
EGF ligands differentially stimulate EGFR coupling to cell proliferation and DNA synthesis
Cell proliferation 32D/EGFR cells |
DNA synthesis MCF10A cells |
|||||
---|---|---|---|---|---|---|
Ligand | EC50 (nM) | Emax (cell density × 104) | N | EC50 (nM) | Emax (% complete media) | N |
AR | 10 ± 3 | 45 ± 3 | 4 | 18 ± 4 | 98 ± 6 | 3 |
BTC | 0.18 ± 0.07 | 10.3 ± 0.8 | 4 | |||
EGF | 0.24 ± 0.09 | 11.8 ± 0.7 | 5 | 0.7 ± 0.2 | 70 ± 4 | 6 |
EPG | 1.7 ± 0.7 | 42 ± 4 | 3 | |||
EPR | 0.6 ± 0.2 | 30 ± 2 | 4 | |||
HB-EGF | 1.0 ± 0.4 | 16 ± 1 | 3 | 1.5 ± 0.5 | 64 ± 5 | 4 |
NRG2β | 16 ± 3 | 53 ± 2 | 12 | |||
TGFα | 37 ± 8 | 69 ± 4 | 4 | 2.7 ± 0.9 | 93 ± 6 | 4 |