2015年10月6日 · In addition, the averaged A431 cell surface EGFR density was found to be 636/μm(2) with an estimation of 5 × 10(5) EGFR per cell. Additional measurement also revealed that different EGFR positive cell lines (A431, HeLa, and A549) show receptor density dependent anti-EGFR binding kinetics.

A431 cells are used in studies of the cell cycle and cancer-associated cell signalling pathways since they express abnormally high levels of the Epidermal growth factor receptor (EGFR). They are often used as a positive control for EGFR expression.

2021年9月3日 · Therefore, biparatopic nanobodies and its ADC, equipped with two different papratopes and two modes of EGFR inhibition, could exert potent dose-dependent antitumor activity in A431 tumor...

The tyrosine kinase inhibitor GEF has been reported to induce dimer formation by enhancing the affinity of EGF-EGFR, while lapatinib stabilizes the inactive form of EGFR and reduces the...

Epidermal growth factor (EGF) at 3 nM maximally inhibits the proliferation of A431 epidermoid carcinoma cells. We show that at lower concentrations, in the range of 3-100 pM, EGF has a mitogenic effect on A431 cells.

2013年4月26日 · The binding efficiency of the EGF to the nanoparticles was measured by flow cytometry using a specific anti-EGF antibody. The ability of EGF bioconjugates to target the EGF receptors was tested using EGFR over-expressing A431 …

2023年12月14日 · To validate the performance of EGFR-FabID, we compared five cell lines with different EGFR expression levels: A431 (high), Expi293F-EGFR stable (middle), HeLaS3 (low), NCI-H1975 (low),...

In the presence of tyrosine kinase inhibitor coumaric acid (0.2 approximately 2 microM), A431 cell growth was stimulated, rather than inhibited, by EGF in a dose-dependent manner. In contrast, the stimulation of A431-4 cell growth by EGF was reduced under the same conditions.

2014年12月16日 · In the current study, we reported the tumor xenografts of the human A431 squamous cell carcinoma, after 25-week consecutive therapy with EGFR inhibitor (gefitinib) that developed resistance as a result of c-Kit overexpression.

2001年1月1日 · We examined the extent of EGF consumption by EGFR in A431 cells. When 125I-EGF was added to A431 cell cultures at low or high density, at concentrations which corresponded to 10-fold excess of ligand over receptor on the cell surface, most of the 125I-EGF was consumed within 2 h.