Unraveling the spectrum of KIT mutations in gastrointestinal stromal tumors: An Indian Tertiary Cancer Center Experience
[Paper-level Aggregated] PMCID: PMC5615879
Evidence Type(s): Oncogenic, Predictive, Functional
Justification: Oncogenic: The text describes various mutations in the KIT gene, particularly in exon 11, which are associated with gastrointestinal stromal tumors (GISTs). The presence of these mutations, including in-frame deletions and substitutions, indicates their role in tumorigenesis. Predictive: The identification of specific mutations, such as p.K558delinsBP and p.Y503_F504insTY, suggests potential predictive value for treatment responses in GISTs, particularly in relation to targeted therapies. Functional: The mutations described, including duplications and insertions, are likely to affect the function of the KIT protein, as indicated by their association with specific tumor characteristics and morphologies.
Gene→Variant (gene-first): KIT(3815):Ala-Tyr KIT(3815):c.1504_1509 dup GCCTAT KIT(3815):c.1509_1510insACCTAT KIT(3815):p.Y503_F504insTY POTEF(728378):c.1666C>G KIT(3815):c.1666_1668dupCAG KIT(3815):c.1672_1677delAAGGTTinsAGT PDGFRA(5156):c.1925A>G KIT(3815):p.K558_V559delinsS POTEF(728378):p.K642R POTEF(728378):p.Q556E KIT(3815):p.Q556dup KIT(3815):K558 del KIT(3815):V555del KIT(3815):c.1669_1674delTGGAAG KIT(3815):c.1676T>A KIT(3815):c.1679T>A KIT(3815):p.V559D KIT(3815):p.V560D KIT(3815):K580dup KIT(3815):c.1673_1674insTCC KIT(3815):c.1731_1742dupTTATGATCACAA KIT(3815):p.K558delinsBP KIT(3815):c.2466T>A KIT(3815):p.N822K KIT(3815):p.L576P KIT(3815):p.T574I KIT(3815):p.V559A KIT(3815):p.V560G
Genes: KIT(3815) POTEF(728378) PDGFRA(5156)
Variants: Ala-Tyr c.1504_1509 dup GCCTAT c.1509_1510insACCTAT p.Y503_F504insTY c.1666C>G c.1666_1668dupCAG c.1672_1677delAAGGTTinsAGT c.1925A>G p.K558_V559delinsS p.K642R p.Q556E p.Q556dup K558 del V555del c.1669_1674delTGGAAG c.1676T>A c.1679T>A p.V559D p.V560D K580dup c.1673_1674insTCC c.1731_1742dupTTATGATCACAA p.K558delinsBP c.2466T>A p.N822K p.L576P p.T574I p.V559A p.V560G