%0 Journal Article %T Haplosufficiency of MHCII in autoreactive germinal center B cells. %A Fahlquist-Hagert C %A Wittenborn TR %A Ferapontov A %A Jensen L %A TerczyƄska-Dyla E %A Degn SE %J Eur J Immunol %V 54 %N 1 %D 2024 Jan 24 %M 37873698 %F 6.688 %R 10.1002/eji.202350422 %X Utilizing an autoimmune bone marrow chimera model we determined that B cells depend critically on MHCII expression for participation in the germinal center, but cells displaying a 50% reduction in surface MHCII compete efficiently with their wild-type counterparts. This provides insights into the requirements for germinal center participation.