mRNA expression analysis
B-hCD40/hCD40L mice was used to establish The T-Dependent Antibody Response assay (TDAR assay) and evaluate the efficacy of anti-CD40 and anti-CD40L antibody. B-hCD40/hCD40L mice (n=5) were intraperitoneally immunized with 100 μg KLH on Day 1 and treated with anti-CD40L (provided by the client) or bleselumab (anti-CD40) (in house). Blood was collected on Day 7 and Day 14 and analyzed by ELISA with KLH specific IgG antibody and KLH specific IgM antibody. (A) Body weight of B-hCD40/CD40L mice increased steadily; (B, C) Concentration of mouse KLH specific IgG and IgM were significantly increased after immunization. But the concentration of KLH specific IgG and IgM in the groups treated with anti-CD40L antibody or bleselumab were significantly decreased when compared to that in the control group, demonstrating that the B-hCD40/hCD40L mice provide a powerful preclinical model for in vivo evaluation of anti-CD40 and anti-CD40L antibodies.
Schematic of EAE model