Gastrointestinal stromal tumors.

Abstract excerpt

Gastrointestinal stromal tumor (GIST) is the most common sarcoma of the intestinal tract. Nearly all tumors have a mutation in the KIT or, less often, platelet-derived growth factor receptor (PDGFRA) or B-rapidly Accelerated Fibrosarcoma (BRAF) gene. The discovery of constitutive KIT activation as the central mechanism of GIST pathogenesis, suggested that inhibiting or blocking KIT signaling might be the...

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