Gefitinib, Free Base (Iressa)

EGFR tyrosine kinase inhibitor that binds to the ATP-binding site of the enzyme. The functions of the EGFR tyrosine kinase in activating the Ras signal transduction cascade and malignant cell growth are thus inhibited. It has been shown that a mutation in the EGFR tyrosine kinase domain is responsible for activating anti-apoptotic pathways in gefitinib-sensitive non-small cell lung cancers. These mutations tend to increase sensitivity to tyrosine kinase inhibitors including gefitinib and erlotinib. The adenocarcinoma subset of non-small cell lung cancer histologies often have these mutations, which are commonly found in Asians, women, and non-smokers.

Small volumes of Gefitinib, Free Base biochemical vial(s) may occasionally become entrapped in the seal of the product vial during shipment and storage. If necessary, briefly centrifuge the vial on a tabletop centrifuge to dislodge any liquid in the container`s cap. Certain products may require to ship with dry ice and additional dry ice fee may apply.

MBS653568 is a biochemical targeting Gefitinib, Free Base. Also known as Gefitinib, Free Base (Iressa).