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Immunohistochemical staining of CXCR7 in all enrolled CRPC patients. Thirty-two cases negatively expressed the CXCR7 protein, and forty-seven cases exhibited derepressed CXCR7 protein. Among which, seven cases showed weakly positive CXCR7 expression, sixteen cases showed moderately positive expression of CXCR7, and twenty-four cases were strongly positive for CXCR7 expression (magnification: 400x).
