New research led by McGill Biochemist Dr. William Muller helps explain why breast-milk cells lose their structure, causing them to clump up in strange ways (photos available) and sometimes become cancer tumors. With the support of Chen Ling and Dongmei Zuo at McGill's Goodman Cancer Centre, Muller has discovered how one particular gene regulates epithelial cells - cells that normally form in sheets and are polarized to enable the transport of molecules in a single direction.
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