A section of a mouse liver in which RAS-positive senescent premalignant cells are marked in green, and the expression of a splicing factor (SF3B4) in red. Splicing factor expression is higher in and more frequent in RAS-positive cells. (IMAGE)

Medical Research Council (MRC) Laboratory of Medical Sciences

A section of a mouse liver in which RAS-positive senescent premalignant cells are marked in green, and the expression of a splicing factor (SF3B4) in red. Splicing factor expression is higher in and more frequent in RAS-positive cells.

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A section of a mouse liver in which RAS-positive senescent premalignant cells are marked in green, and the expression of a splicing factor (SF3B4) in red. Splicing factor expression is higher in and more frequent in RAS-positive cells. Credit: Laura Bousset, MRC Laboratory of Medical Sciences 

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Laura Bousset, MRC Laboratory of Medical Sciences

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