immune system
N |
• Th2 immune response is not different from controls in mast cell-deficient animals
• IgM, IgG1, IgG2a, IgG2b, IgG3, IgA and IgE serum titers are not different from controls
• mice injected with K/Bxn serum in an antigen-induced arthritis model develop arthritis with rapid onset and similar severity relative to controls
• mice have a normal T cell-dependent antibody response to immunization with NP-chicken gamma globulin
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• mice show reduced numbers of splenic basophils
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• mice exhibit complete absence of mast cells in the peritoneum, skin and other tissues that normally contain mast cells
• peritoneal and skin mast cell numbers are partially rescued on a Trp53-null background
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• mice show a complete lack of mast cells in the skin following repeated exposure to the inflammatory agent phorbol myristate acetate (PMA) whereas Kit mutants exhibit a 10-100-fold increase in mast cell numbers in the skin following exposure to PMA for 6 weeks
• after infection with helminthes, mice show no mucosal mast cell response in the intestine
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hematopoietic system
N |
• hematological parameters (counts of total white blood cells, red blood cells, platelets, hematocrit, and percentages of lymphocytes, monocytes, and neutrophils) are not affected in mutants
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• mice show reduced numbers of splenic basophils
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• mice exhibit complete absence of mast cells in the peritoneum, skin and other tissues that normally contain mast cells
• peritoneal and skin mast cell numbers are partially rescued on a Trp53-null background
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