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Analysis Immunoassay of Crizotinib (CZT) by KinExA (CAT#: STEM-MB-0074-CJ)

Introduction

Crizotinib (CZT) is an antitumor (cancer) drug that can be used to treat metastatic (cancer that has spread) non-small cell lung cancer (NSCLC) caused by defects in the anaplastic lymphoma kinase (ALK) gene or ROS1 gene. Crizotinib is also used to treat inflammatory myofibroblastoma (IMT) that is unresectable (cancer that cannot be surgically removed) , recurrent (cancer that keeps coming back) , or refractory (cancer that does not respond to treatment).




Principle

KinExA is a two-stage analysis system. In the first stage, a number of solutions are prepared, where one partner remains constant (constant binding partner, or CBP) and the other (titrant) is variable, usually serially diluted. As the titrant is added, the free CBP decreases and is analysed by a sophisticated and precise microfluorescence measurement device. The signal generated can be mathematically related to the affinity (KD) of the two molecules for each other, as well as the kinetic parameters of binding (kon) and dissociation (koff).

Applications

Oncology & Cancer; Immunology/Inflammation; Pharmacology

Procedure

1. preparation of the functionalized beads which will capture the analyte for measuremen.
2. preparation of a series of solutions consisting of a constant initial concentration of one component of the binary reaction and serial dilutions of the other reactant. The component that is kept constant is the constant binding partner (CBP) , and is the one which will be analyzed.
3. each reaction mixture is sampled and the fluorescence of free CBP bound to the capture beads is obtained for subsequent numerical analysis.

Materials

• Sample Type: Serum, Plasma, Urine
• Equipment: Kinetic Exclusion Assay (KinExA)
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