Raf inhibition causes extensive multiple tissue hyperplasia and urinary bladder neoplasia in the rat.

Abstract excerpt

Seven novel and potent Raf small molecule kinase inhibitors (C1-7) were evaluated in seven-day oral repeat dose rat toxicity studies. All compounds tested induced hyperplasia in multiple tissues. Consistently affected was stratified squamous epithelium at a number of sites and transitional epithelium of urinary bladder and kidney. A seven-day time course study in rats showed morphologic evidence of epithelial...

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