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Gastrointestinal Stromal Tumor

Gastrointestinal stromal tumor apoptosis induced by flavopiridol

Published in Proteomics Weekly, August 7th, 2006

Flavopiridol could induce apoptosis in gastrointestinal stromal tumors (GIST) by targeting KIT expression and antiapoptotic proteins.

According to a study from the United States, "GIST are characterized by activating mutations in the c-KIT gene which confers ligand-independent activation of the KIT receptor. Imatinib mesylate has been shown to effectively block constitutively active KIT and delay tumor growth. However, resistance to imatinib mesylate is emerging as a major clinical problem and novel therapies are needed."

"We report that treatment of GIST cells with the transcriptional inhibitor flavopiridol, initially down-regulates the...

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