Figure 5.
RLR-containing 15-mer MIF peptides block MIF/CXCR4-dependent JVM-3 lymphocyte chemotaxis. Chemotactic migration (represented as chemotactic index) of JVM-3 lymphocytes towards WT-MIF (16 nM) in the presence versus absence of different concentrations of RLR-containing peptides MIF(76–90) or YSKLLCGLLAERLRI and MIF(86–100) or ERLRISPDRVYINYY as indicated. PBS buffer was used as negative control to normalize for spontaneous random migration (control). The bar graph shows means ± SD of 3–12 replicates and represent 2–3 experiments. Statistical comparisons were done between the MIF and MIF + peptide data sets (*p < 0.05; ***p < 0.005) and between control and MIF (§§§p < 0.005).