Fig. 2.
Responsiveness of spleen cells to HA and chondroitin sulfate. Spleen cells (6 × 105) were cultured in the presence of increasing concentrations of HA or chondroitin sulfate (0.1 mg/mL, 0.5 mg/mL, 1.0 mg/mL) or medium alone (control). After 48 hours, cell proliferation was measured as described in the legend to Fig 1.
