Fig. 1.

The dose–response relationship between the substrate density and neurite growth from chick DRG neurons. The neurons were plated on culture slides that had been coated sequentially with poly-d-lysine, anti-Fc antibody, and increasing concentrations of either L1-Fc (A) or N-cadherin-Fc (B). Fourteen hours after plating, the length of neurites was measured (n = 50–54 for each data set). ***p < 0.001; compared with 0 ng/ml of the Fc chimeras.