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Surface expression of CXCR4 on HT-29 cells. HT-29 cells were incubated with 10 μg/mL anti-CXCR4 (filled) or an isotype control antibody (open), then labeled with a FITC conjugate. Washed cells were analyzed by flow cytometry in which accumulated events were gated against the isotype control. The experiment shown is representative of 3 similar experiments.
