Neutralization of TSLP in BaF3 mouse pro-B cell line transfected with mouse IL-7 Rα/CD127. Samples were incubated in TSLP polyclonal antibody (Product # PA5-47753). Recombinant Mouse TSLP stimulates proliferation in the BaF3 mouse pro-B cell line transfected with mouse IL-7 Rα/CD127 in a dose-dependent manner (orange line). Proliferation elicited by Recombinant Mouse TSLP (7.5 ng/mL) is neutralized (green line) by increasing concentrations of Goat Anti-Mouse TSLP Antigen Affinity-purified Polyclonal Antibody. The ND50 is typically 0.1-0.4 µg/mL.