IndraLab

"We show that EGF-induced EGFR autotransphosphorylation is reduced in PC3-AR cells compared to PC3 cells transfected only with the vector (PC3-Neo)."

"Immunoprecipitation studies demonstrated a reduction of EGF-induced tyrosine phosphorylation of EGFR in PC3-AR cells."

"The first group includes EGF, amphiregulin (AR), and transforming growth factor-alpha (TGF-alpha), which bind specifically to ErbB1; the second group betacellulin (BTC), heparin-binding EGF (HB-EGF), and epiregulin (EPR), which exhibit dual specificity in that they bind ErbB1 and ErbB4. The third group is composed of the neuregulins (NRG) and forms two subgroups based upon their capacity to bind ErbB3 and ErbB4 (NRG-1 and NRG-2) or only ErbB4 (NRG-3 and NRG-4). ErbB2 has no direct ligand and needs a heterodimerization partner to acquire signaling potential ErbB3...has impaired kinase activity."

"E-cadherin blockade decreased the rate of EGFR tyrosine dephosphorylation, implicating an E-cadherin-dependent protein tyrosine phosphatase in EGFR dephosphorylation."

"The first group includes EGF, amphiregulin (AR), and transforming growth factor-alpha (TGF-alpha), which bind specifically to ErbB1; the second group betacellulin (BTC), heparin-binding EGF (HB-EGF), and epiregulin (EPR), which exhibit dual specificity in that they bind ErbB1 and ErbB4. The third group is composed of the neuregulins (NRG) and forms two subgroups based upon their capacity to bind ErbB3 and ErbB4 (NRG-1 and NRG-2) or only ErbB4 (NRG-3 and NRG-4). ErbB2 has no direct ligand and needs a heterodimerization partner to acquire signaling potential ErbB3...has impaired kinase activity."

"We show that EGF-induced EGFR autotransphosphorylation is reduced in PC3-AR cells compared to PC3 cells transfected only with the vector (PC3-Neo)."

"Immunoprecipitation studies demonstrated a reduction of EGF-induced tyrosine phosphorylation of EGFR in PC3-AR cells."

"E-cadherin blockade decreased the rate of EGFR tyrosine dephosphorylation, implicating an E-cadherin-dependent protein tyrosine phosphatase in EGFR dephosphorylation."