IndraLab
Statements
sparser
"The covalent binding of afatinib to EGFR, HER2, and HER4 irreversibly inhibits the tyrosine kinase activity of these receptors, resulting in reduced auto- and transphosphorylation within the ErbB dimers and inhibition of important steps in the signal transduction of all ErbB receptor family members [ xref , xref ]."
sparser
"The selectivity of afatinib was confirmed by independent investigators assessing the binding properties of afatinib in 442 kinases covering more than 80 % of the human kinome (Davis et al. xref ): it interacted significantly (low nanomolar range; 0.25 nM < K d < 6.3 nM) only with EGFR, HER2 and ErbB4; except for GAK, BLK, IRAK1, EpHA6, HIPK4, PhKG2 and phosphorylated Abl-1 kinase (79 nM < K d < 570 nM), all other K d values were above 1,000 nM, illustrating the high selectivity of afatinib on the human kinome."
sparser
"In addition to gefitinib and erlotinib, a second-generation EGFR/HER-TKI afatinib is approved as a first-line treatment for the advanced NSCLC harboring act EGFR m in the US, Europe, Taiwan, Japan, and other countries. xref Afatinib is an ATP-competitive aniline-quinazoline derivate containing a reactive acrylamide group, covalently binding to EGFR, HER2, and HER4 and irreversibly inhibiting HER-family phosphorylation and signal transduction. xref The theoretical advantages and promising preclinical data indicated that afatinib irreversibly inhibited the enzymatic activation of wt EGFR , EGFR L858R , EGFR L858R/T790M , EGFR L858R/T854A , wt HER2 , HER2 amplification, and wt HER4 , as well as showed antitumor activities in both EGFR/HER-TKI-naive and resistant tumor cells and xenograft models. xref , xref "
sparser
"In contrast, we did not find any association of ErbB2 or ErbB4 with EGFR during the infection (Figure xref ), although ErbB2 is widely reported to be a heterodimerization partner for EGFR (Graus-Porta et al., xref ), suggesting that ErbB3 might be recruited to EGFR during its phosphorylation."