Figure 2. Competition with the co-culture induced ligand in the in vitro invasion assay by large polymeric SR-A ligands.
A. Macrophages and ID8 tumour cells were co-cultured in the presence of fucoidan, poly I, poly G or poly C. Addition of known SR-A ligands can inhibit tumour cell invasion (p<0.01, t-test). Poly C served as a negative control. Data are represented as mean ± SEM of n=6. Representative data are shown from at least 3 independent experiments. B. Addition of 100μg/ml of poly I up to 6hr after the start of the macrophage: ID8 co-culture inhibits tumour cell invasion. When added after 9h there is no impact on the invasion assay.