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Recent studies have shown that CXCR4 is associated with tumor metastasis. Elevated levels of CXCR4 are also detected in a high percentage of DCIS cases. The high frequency of CXCR4 expression in DCIS suggests that many DCIS cases are “primed” for invasiveness. In this study, we demonstrated that expression of CXCR4 reveals morphological alterations in cells, from normal acinar morphological epithelial...