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. 2000 Jan 3;191(1):77–88. doi: 10.1084/jem.191.1.77

Figure 3.

Figure 3

Homologous but not heterologous desensitization by CCR7 and CXCR4 ligands. Desensitization of chemotaxis experiments were performed as described (reference 22). In brief, mouse LN or spleen cells were pretreated with five times the optimal chemotactic dose of the indicated chemokine (or control medium), and washed through a serum layer to remove residual chemokine. The desensitized cells were then allowed to migrate towards the same or another chemokine (at the optimal chemotactic dose) through 5-μm pores for 15 min. Migrated cells were counted as described (references 8, 22). Percent migration of B cells was calculated based on FACS® analysis of migrated compared with input cells; B cells were defined as CD3/CD19+. Data shown are the mean ± SD of three experiments, each with two replicate wells per condition. Mean maximum migration of mock-treated control B cells to SDF-1α was 10%, to MIP-3β 15%, and to SLC 13%.