Figure 5. Mast cells increase collagen lattice contraction by peritoneal adhesion fibroblasts. Human peritoneal adhesion fibroblasts were seeded in a collagen lattice in the presence of different concentrations of mast cell sonicate, and the lattice diameter was measured for up to 8 days. Control: lattices incubated with medium alone. Data are the mean ± SEM of three experiments performed in triplicate.