Words similar to egfr
Example sentences for: egfr
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However, the Src inhibitor, PP1 or the expression of a dominant-negative Src mutant, will reduce GPCR-mediated transphosphorylation of the EGFR and GPCR-mediated ERK activation to varying degrees (partial to total), suggesting that at least two different tyrosine kinases can be involved [ 18 ] . Src was found to co-immunoprecipitate with the phosphorylated EGFR in COS-7 cells exposed to either LPA or EGF [ 14 ] . These authors reported that the autophosphorylation of Y350 in the EGFR does not occur after LPA exposure, suggesting that c-Src is the principal tyrosine kinase in this instance and not the EGFR's intrinsic tyrosine kinase.
To find out whether KRAS mutations could help to predict which patients would respond to gefitinib or erlotinib, the researchers looked for mutations in EGFR and KRAS genes in 60 tumors for which sensitivity to either drug was known.
In an effort to explain the selective advantage of cells with a newly identified “resistance” mutation in EGFR— a T790M amino acid substitution—we further characterized the drug sensitivity of putatively resistant EGFR mutants versus wild-type or drug-sensitive EGFR mutants, using both a NSCLC cell line fortuitously found to contain the T790M mutation and lysates from cells transiently transfected with wild-type and mutant EGFR cDNAs.
The H3255 cell line, which harbors the L858R mutation and no other EGFR TK domain mutations (Table 2), was sensitive to treatment with gefitinib, with an IC 50 of about 0.01 μmol (Figure 5).
Shc, Gab1, Grb2, mSOS, and MAPK kinase (MEK-1)) known to be used by single-transmembrane receptor tyrosine kinases (RTKs) like the epidermal growth factor receptor (EGFR) (for a review see [ 6 ] ). When ERKs are activated after EGFR stimulation, an essential event is the sequential tyrosine phosphorylation of these intermediate proteins and their binding to the tyrosine phosphorylated EGFR before the GTP-loading of Ras.
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