Figure 9.
Collagen lattice contraction in response to latent TGF-β1 and BB-94. Stressed-relaxed collagen lattices were used to determine contractile force generation. Latent TGF-β1 (10 ng/ml; open circle) could promote collagen contraction significantly greatly than no TGF-β1 (open diamond) (all times p<0.03) and to the same extent as active TGF-β1(1 ng/ml; closed square). Addition of BB-94 (5 μM) to latent TGF-β1 (10 ng/ml; closed triangle) significantly inhibited the promotion of collagen lattice contraction (all times **p≤0.01). All contraction assays were carried out in triplicate, and every experiment was repeated three or more times. Mean ± SEM.