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Ref Type Journal Article
PMID (18938156)
Authors Day E, Waters B, Spiegel K, Alnadaf T, Manley PW, Buchdunger E, Walker C, Jarai G
Title Inhibition of collagen-induced discoidin domain receptor 1 and 2 activation by imatinib, nilotinib and dasatinib.
Journal Vol Issue Date Pages Journal Short Title
European journal of pharmacology 599 1-3 2008 Dec 3 44-53 Eur J Pharmacol
URL
Abstract Text Imatinib, nilotinib and dasatinib are protein kinase inhibitors which target the tyrosine kinase activity of the Breakpoint Cluster Region-Abelson kinase (BCR-ABL) and are used to treat chronic myelogenous leukemia. Recently, using a chemical proteomics approach another tyrosine kinase, the collagen receptor Discoidin Domain Receptor1 (DDR1) has also been identified as a potential target of these compounds. To further investigate the interaction of imatinib, nilotinib and dasatinib with DDR1 kinase we cloned and expressed human DDR1 and developed biochemical and cellular functional assays to assess their activity against DDR1 and the related receptor tyrosine kinase Discoidin Domain Receptor2 (DDR2). Our studies demonstrate that all 3 compounds are potent inhibitors of the kinase activity of both DDR1 and DDR2. In order to investigate the question of selectivity among DDR1, DDR2 and other tyrosine kinases we have aligned DDR1 and DDR2 protein sequences to other closely related members of the receptor tyrosine kinase family such as Muscle Specific Kinase (MUSK), insulin receptor (INSR), Abelson kinase (c-ABL), and the stem cell factor receptor (c-KIT) and have built homology models for the DDR1 and DDR2 kinase domains. In spite of high similarity among these kinases we show that there are differences within the ATP-phosphate binding loop (P-loop), which could be exploited to obtain kinase selective compounds. Furthermore, the potent DDR1 and DDR2 inhibitory activity of imatinib, nilotinib and dasatinib may have therapeutic implications in a number of inflammatory, fibrotic and neoplastic diseases.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References