TY - JOUR KW - Adaptive immunity KW - Germinal centres KW - Immunological techniques KW - vaccines AU - Lisa E. Wagar AU - Ameen Salahudeen AU - Christian M. Constantz AU - Ben S. Wendel AU - Michael M. Lyons AU - Vamsee Mallajosyula AU - Lauren P. Jatt AU - Julia Z. Adamska AU - Lisa K. Blum AU - Neha Gupta AU - Katherine J. L. Jackson AU - Fan Yang AU - Katharina Röltgen AU - Krishna M. Roskin AU - Kelly M. Blaine AU - Kara D. Meister AU - Iram N. Ahmad AU - Mario Cortese AU - Emery G. Dora AU - Sean N. Tucker AU - Anne I. Sperling AU - Aarti Jain AU - D. Huw Davies AU - Philip L. Felgner AU - Gregory B. Hammer AU - Peter S. Kim AU - William H. Robinson AU - Scott D. Boyd AU - Calvin J. Kuo AU - Mark M. Davis AB - Most of what we know about adaptive immunity has come from inbred mouse studies, using methods that are often difficult or impossible to confirm in humans. In addition, vaccine responses in mice are often poorly predictive of responses to those same vaccines in humans. Here we use human tonsils, readily available lymphoid organs, to develop a functional organotypic system that recapitulates key germinal center features in vitro, including the production of antigen-specific antibodies, somatic hypermutation and affinity maturation, plasmablast differentiation and class-switch recombination. We use this system to define the essential cellular components necessary to produce an influenza vaccine response. We also show that it can be used to evaluate humoral immune responses to two priming antigens, rabies vaccine and an adenovirus-based severe acute respiratory syndrome coronavirus 2 vaccine, and to assess the effects of different adjuvants. This system should prove useful for studying critical mechanisms underlying adaptive immunity in much greater depth than previously possible and to rapidly test vaccine candidates and adjuvants in an entirely human system. BT - Nature Medicine DA - 2021-01 DO - 10.1038/s41591-020-01145-0 IS - 1 LA - en N2 - Most of what we know about adaptive immunity has come from inbred mouse studies, using methods that are often difficult or impossible to confirm in humans. In addition, vaccine responses in mice are often poorly predictive of responses to those same vaccines in humans. Here we use human tonsils, readily available lymphoid organs, to develop a functional organotypic system that recapitulates key germinal center features in vitro, including the production of antigen-specific antibodies, somatic hypermutation and affinity maturation, plasmablast differentiation and class-switch recombination. We use this system to define the essential cellular components necessary to produce an influenza vaccine response. We also show that it can be used to evaluate humoral immune responses to two priming antigens, rabies vaccine and an adenovirus-based severe acute respiratory syndrome coronavirus 2 vaccine, and to assess the effects of different adjuvants. This system should prove useful for studying critical mechanisms underlying adaptive immunity in much greater depth than previously possible and to rapidly test vaccine candidates and adjuvants in an entirely human system. PY - 2021 SP - 125 EP - 135 T2 - Nature Medicine TI - Modeling human adaptive immune responses with tonsil organoids UR - https://www.nature.com/articles/s41591-020-01145-0 VL - 27 Y2 - 2023-08-09 SN - 1546-170X ER -