Moreover, although there was a significant fall in percent primary tumour cells stained for S100A4 after injection of RGC (Student’s t-test, p ≤ 0.026), the few tumours that grew as experimental lung metastases showed no significant reduction (p ≥ 0.32) (Supplementary Figure S13) (Table 2). Here, S100A4 is linked to neoplasm.