hematopoietic system
• frequencies of alpha-lymphoid progenitors, common helper innate lymphoid cell progenitors (CHILPs), and innate lymphoid cell precursors (ILCPs) are reduced in the small intestine and liver, ILC2s in the small intestine and lung, and ILC3s in the small intestine
• mutant common lymphoid progenitors (CLPs) engrafted into Rag1/Il2rg null recipients produce fewer numbers of innate lymphoid cells (ILCs)
• differentiation ability of alpha4Beta7+ CLPs in culture is suppressed
• however, normal frequencies of alpha4Beta7+ CLPs are seen
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• mice exhibit a reduced number of IFN-gamma+ group 1 innate lymphoid cells (ILC1s) after S. typhimurium infection
• mice show a decreased number of group 2 innate lymphoid cells (ILC2s) in the lung and a reduced number of IL-5 and IL-13 secreting ILC2s in the lung after papain challenge
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immune system
• frequencies of alpha-lymphoid progenitors, common helper innate lymphoid cell progenitors (CHILPs), and innate lymphoid cell precursors (ILCPs) are reduced in the small intestine and liver, ILC2s in the small intestine and lung, and ILC3s in the small intestine
• mutant common lymphoid progenitors (CLPs) engrafted into Rag1/Il2rg null recipients produce fewer numbers of innate lymphoid cells (ILCs)
• differentiation ability of alpha4Beta7+ CLPs in culture is suppressed
• however, normal frequencies of alpha4Beta7+ CLPs are seen
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• mice exhibit a reduced number of IFN-gamma+ group 1 innate lymphoid cells (ILC1s) after S. typhimurium infection
• mice show a decreased number of group 2 innate lymphoid cells (ILC2s) in the lung and a reduced number of IL-5 and IL-13 secreting ILC2s in the lung after papain challenge
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• number of intestinal lymphoid follicles is decreased
• however, NK cells in the spleen and blood are not affected
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• number of Peyers patches is decreased
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• leukocyte infiltration is attenuated in the lungs after papain challenge
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• mice exhibit a higher number of S. typhimurium CFUs in mesenteric lymph nodes after infection than controls
• mice exhibit a higher number of bacterial CFUs in feces, weight loss and shrinking colon length accompanied by more severe intestinal damage after C. rodentium infection
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