RORgamma (RORC) Deficient Mice Which Are Useful for the Study of Lymph Node Organogenesis and Immune Responses
The retinoid-related orphan receptor gamma (RORgamma) is a member of the nuclear receptor superfamily. NIH investigators used homologous recombination in embryonic stem cells to generate mice in which the RORgamma gene was disrupted. RORgamma deficient mice lack peripheral and mesenteric lymph nodes and Peyer's patches indicating that ROR expression is indispensable for lymph node organogenesis. In addition, RORgamma is required for the generation of Th17 cells which play a critical role in autoimmune disease.