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Clin Sarcoma Res. 2012 Oct 4;2(1):16. doi: 10.1186/2045-3329-2-16.

Inherited gastrointestinal stromal tumor syndromes: mutations, clinical features, and therapeutic implications.

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1
Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY, USA. robsonm@mskcc.org.

Abstract

The discovery of underlying molecular genetic abnormalities in gastrointestinal stromal tumors (GISTs) such as activating mutations in the tyrosine kinase genes, KIT and platelet derived growth factor receptor-alpha (PDGFRA), has led to remarkable clinical advances in treatment. Small molecule inhibitors such as imatinib and sunitinib are known to inhibit the aberrantly activated KIT and PDGFRA receptor signaling and can lead to excellent clinical outcomes for patients with GIST. Though the majority of GISTs appear to arise sporadically, a number of families with high frequencies of GISTs have been reported and germline mutations have been identified. This review will highlight the various inherited mutations associated with familial GIST syndromes and describe how an improved understanding of these genetic syndromes has important clinical implications for future understanding of this heterogeneous disease.

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