In Vivo Effects of TGFβ on the Cellular and Humoral Response to an Allogeneic Tumor in Mice

Abstract

ANNALS NEW YORK ACADEMY OF SCIENCES1 :25 1 :400 1 :1600 SERUM DILUTION FIGURE 2. The antibody response to P815 cells is not inhibited by ' TGFDI treatments. Serum antibody levels were determined for Experiment 1, FIG. 1. Anti-PI15 antibody levels were measured by incubating 51Cr-labeled P815 cells with the indicated dilution of heat-inactivated serum for 30 min at 37°C. An optimal concentration of rabbit complement was then added. and after 30 min supernatants were harvested to determine percent specific release.