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Follicular dendritic cells (FDCs) are important for the induction of protective T cell-dependent humoral responses, but their contribution to autoimmunity remains elusive. Here, gene-targeted interruption of FDC development was combined with the K/BxN mouse model of arthritis. We found that FDCs were essential for autoantibody production through two distinct but cooperative functions. In a T cell-independent...
The FDC-specific molecular signals required in the formation of FDC networks, B cell follicles, and germinal centers (GCs) have remained poorly understood. We used FDC-specific gene targeting to investigate the function of p55TNFR and IKK2 in lymphoid organ structure and function. Here we show that FDC-specific expression of p55TNFR is necessary and sufficient to promote FDC network and B cell follicle...
Traditionally, adjuvants have been administered with antigens to enhance immunity. We studied the effect of several adjuvants such as Freund's complete adjuvant (FCA), Freund's incomplete adjuvant (FIA), lipopolysaccharide (LPS), homopolymers of polyinosinic-polycytidylic acid (poly I:C) and polyadenylic-polyuridylic acid (poly A:U), lithium chloride (LiCl), saponin Quil A and calcium phosphate gel...
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