Germinal middle (GC) B cells cycle between two states, the light zone (LZ) and the dark zone (DZ), and in the latter they proliferate and hypermutate their immunoglobulin genes. are consistent with a model where the switch from your LZ to the DZ is brought on after receipt of T cell help, and suggest that… Continue reading Germinal middle (GC) B cells cycle between two states, the light