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Zebrafish help decode link between calcium deficiency, colon cancer

By studying zebrafish embryo skin, University of Michigan researchers decoded cell messages underlying abnormal colonic cell growth of the kind that can lead to tumors and colon cancer in calcium deficient individuals. They have also tested this new mechanism in human colon cancer cells. Ultimately, the new biological mechanism unraveled in zebrafish will help scientists understand the pathways that fuel low calcium-related abnormal colonic cell growth and how to stop that growth, said Cunming Duan, professor in the U-M Department of Molecular, Cellular & Developmental Biology. To do this, Duan and colleagues used a fluorescent protein to mark a type of epithelial cell, whose job it is to import calcium into the body. …