Figure 4.

Levels of SDF-1 transcript in human breast tumours. (a) Stromal cell-derived factor (SDF)-1 expression level and lymph node metastasis, showing SDF-1 expression in node-negative and node-positive samples (0.89 ± 0.47 versus 399 ± 210; P = 0.05). (b) Significantly raised SDF-1 transcript in patients with local recurrence and with mortality. (c) Expression level of SDF-1 and clinical outcome (disease-free versus poor out come: 0.83 ± 0.35 versus 670 ± 346; P = 0.01).