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- W2146306052 abstract "Gastrointestinal stromal tumors (GIST) are the most common type of sarcoma in the gastrointestinal tract. Surgery is the primary treatment modality, but many patients suffer disease recurrence or metastasis. Fortunately, the management of advanced GIST has been revolutionized by the use of small molecule kinase inhibitors that target the underlying pathogenetic mutant kinases found in the vast majority of cases. Approximately 85% of GISTs have oncogenic mutations in KIT, allowing for constitutive kinase activation that is responsible for cellular proliferation and survival. About 5 to 7% of GISTs have activating mutations of the homologous platelet-derived growth factor receptor alpha (PDGFRA) kinase. The progression-free and overall survival of patients with advanced disease is greatly improved by treatment with the kinase inhibitors imatinib and sunitinib. However, the emergence of drug-resistant tumor clones limits the long-term benefit of these drugs in most patients. Resistance to these kinase inhibitors is associated with distinctive clinical and molecular features, with the development of secondary mutations of the oncogenic kinase being the most common mechanism. We review the molecular basis of GIST response and/or resistance to TKIs, and discuss strategies to prevent and/or overcome drug resistance. These concepts are directly relevant to the development of targeted molecular therapy for other solid tumors. (Clin Cancer Res 2009;15(24):7510-8)." @default.
- W2146306052 created "2016-06-24" @default.
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- W2146306052 creator A5026593581 @default.
- W2146306052 creator A5091057405 @default.
- W2146306052 date "2009-12-14" @default.
- W2146306052 modified "2023-09-26" @default.
- W2146306052 title "Resistance to Tyrosine Kinase Inhibitors in Gastrointestinal Stromal Tumors" @default.
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- W2146306052 doi "https://doi.org/10.1158/1078-0432.ccr-09-0190" @default.
- W2146306052 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/20008851" @default.
- W2146306052 hasPublicationYear "2009" @default.
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