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描述 | Many of the tyrosine kinase enzymes which are early components of the growth signal transduction pathway in mammalian cells are encoded by proto-oncogenes, and their transformation or overexpression has been shown to occur in a large percentage of clinical cancers. The epidermal growth factor receptor (EGFR), one of the tyrosine kinase enzymes, has thus become important target for cancer therapy. PD153035 is a potent and selective inhibitor against EGFR with an IC50 value of 25 pM and Ki value of 6 pM. PD153035 inhibited EGF-stimulated receptor autophosphorylation in A431 human epidermoid carcinoma cells, with IC50 of 14 nM [3]. In cell lines with the highest level of EGFR overexpression, PD153035 concentrations of ≥ 75 nM resulted in complete inhibition of receptor autophosphorylation. PD153035 caused a dose-dependent growth inhibition of EGFR-positive cell lines, beginning at less than micromolar concentrations, and the IC50 was less than 1 μM in most cases [4]. | ||
作用机制 | PD153035 binds at the ATP site of EGFR . |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.78mL 0.56mL 0.28mL |
13.88mL 2.78mL 1.39mL |
27.76mL 5.55mL 2.78mL |
参考文献 |
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