CD40LG and thanatophoric dysplasia: Cells were cultured with stimulators that preferentially induce TD and GC (anti‐IgM/G/A plus IL‐2, IL‐10, and sCD40L) response or stimulators (anti‐IgM/IgG/A plus CpG) that preferentially promote EF response46, 47, 48 We found that all B‐cell samples from HDs showed proliferative responses with relatively consistent proliferation rates.