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Phenotypes associated with this allele
Allele Symbol
Allele Name
Allele ID
Tnfaip8l2tm1Yhcn
targeted mutation 1, Youhai H Chen
MGI:3810526
Summary 1 genotype
Jump to Allelic Composition Genetic Background Genotype ID
hm1
Tnfaip8l2tm1Yhcn/Tnfaip8l2tm1Yhcn 129S6/SvEvTac-Tnfaip8l2tm1Yhcn MGI:3810635


Genotype
MGI:3810635
hm1
Allelic
Composition
Tnfaip8l2tm1Yhcn/Tnfaip8l2tm1Yhcn
Genetic
Background
129S6/SvEvTac-Tnfaip8l2tm1Yhcn
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tnfaip8l2tm1Yhcn mutation (1 available); any Tnfaip8l2 mutation (17 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• half the mice die from systemic autoimmune disease by one year of age

growth/size/body
• mice lose weight as result of autoimmune disease, with mice weighing about 20% less than controls at 4 months of age
• spleens are increased in weight by about 50% at 4 months of age
• there is about a 50% increase in the number of cells found in the spleen at 4 months of age

immune system
• B cell numbers in the spleen of 4-month old mice are increased by about half
• T cell numbers in the spleen of 4-month old mice are increased by about half
• CD11b+ cells in the spleen of 4-month old mice are increased by more than half
• both CD4+ and CD8+ T cells are resistant to activation-induced cell death having about half the apoptosis rates as controls
• spleens are increased in weight by about 50% at 4 months of age
• there is about a 50% increase in the number of cells found in the spleen at 4 months of age
• the white pulp of the spleen is greatly increased to the point of destroying the spleen micro-architecture
• splenic B cells produce significantly more IL-1beta and TNF upon stimulation with LPS or CpG
• responses to anti-IgM stimulation including TNF production, proliferation, and class switching are all normal in these mice
• the number of B cells expressing CD69+ is greatly increased in the spleen of 4 month old mice
• levels are reduced in the sera of 4 month old mice
• levels are reduced in the sera of 4 month old mice
• CD4+ T cells responses are hyperactive to in vitro TCR stimulation
• in vitro activation of these cells leads to enhanced secretion of IL-2, IL-4, IL-6, IL-17, and IFN-gamma
• there is higher expression of the activation markers CD25, CD44, and CD69 after TCR ligation compared to controls
• CD8 T cell responses to lymphocytic choriomeningitis virus (LCMV) are augmented in these mice
• mice have 5-fold more CD8+ T cells that are reactive to LCMV eight days after infection compared to wild-type mice
• splenocytes from infected mice also make twice as much IFN-gamma as controls when cultured with LCMV-derived peptides that are antigenic to CD8 + T cells
• bone marrow derived macrophages activated in vitro with LPS produce significantly more IL-6 and IL-12 than controls
• IL-1beta levels are vastly increased in the sera of 4-month old mice
• IL-10 levels are vastly increased in the sera of 4-month old mice
• IL-12 levels are vastly increased in the sera of 4-month old mice
• IL-6 levels are increased about 3-fold in the sera of 4-month old mice
• TNF levels are vastly increased in the sera of 4-month old mice
• in vitro activation of CD4+ T cells leads to enhanced secretion of IFN-gamma
• splenocytes from LCMV-infected mice produce more IFN-gamma upon stimulation with antigenic peptide derived from LCMV
• IL-1beta levels are vastly increased in the sera of 4-month old mice
• bone marrow derived macrophages activated in vitro with LPS produce significantly more IL-12 than controls
• in vitro activation of CD4+ T cells leads to enhanced secretion of IL-17
• in vitro activation of CD4+ T cells leads to enhanced secretion of IL-2
• in vitro activation of CD4+ T cells leads to enhanced secretion of IL-4
• in vitro activation of CD4+ T cells leads to enhanced secretion of IL-6
• bone marrow derived macrophages activated in vitro with LPS produce significantly more IL-6 than controls
• splenic B cells produce significantly more TNF upon stimulation with LPS or CpG
• is observed in mice as part of systemic autoimmune disease starting at 3 months of age
• is observed in mice as part of systemic autoimmune disease starting at 3 months of age
• all mice die within 4 days of I.V. administration of a low dose of LPS while only 2 of 11 controls die within the same time period
• sera levels of IL-1, IL-6, and IL-12 in mice treated with LPS are greatly augmented
• severe multi-organ necrosis occurs in these mice when treated with low dose LPS
• starting at two months of age, mice develop a chronic systemic autoimmune disease that eventually proves fatal
• mononuclear cell infiltration occurs in multiple organs is noted by 3 months of age including in the lung, liver, and intestine
• is observed in mice as part of systemic autoimmune disease starting at 3 months of age
• interstitial lung inflammation is observed in mice starting at 3 months of age as part of a systemic autoimmune disease

digestive/alimentary system
• is observed in mice as part of systemic autoimmune disease starting at 3 months of age

liver/biliary system
• is observed in mice as part of systemic autoimmune disease starting at 3 months of age

respiratory system
• interstitial lung inflammation is observed in mice starting at 3 months of age as part of a systemic autoimmune disease

homeostasis/metabolism
• IL-1beta levels are vastly increased in the sera of 4-month old mice
• IL-10 levels are vastly increased in the sera of 4-month old mice
• IL-12 levels are vastly increased in the sera of 4-month old mice
• IL-6 levels are increased about 3-fold in the sera of 4-month old mice
• TNF levels are vastly increased in the sera of 4-month old mice

hematopoietic system
• B cell numbers in the spleen of 4-month old mice are increased by about half
• T cell numbers in the spleen of 4-month old mice are increased by about half
• CD11b+ cells in the spleen of 4-month old mice are increased by more than half
• both CD4+ and CD8+ T cells are resistant to activation-induced cell death having about half the apoptosis rates as controls
• spleens are increased in weight by about 50% at 4 months of age
• there is about a 50% increase in the number of cells found in the spleen at 4 months of age
• the white pulp of the spleen is greatly increased to the point of destroying the spleen micro-architecture
• splenic B cells produce significantly more IL-1beta and TNF upon stimulation with LPS or CpG
• responses to anti-IgM stimulation including TNF production, proliferation, and class switching are all normal in these mice
• the number of B cells expressing CD69+ is greatly increased in the spleen of 4 month old mice
• levels are reduced in the sera of 4 month old mice
• levels are reduced in the sera of 4 month old mice
• CD4+ T cells responses are hyperactive to in vitro TCR stimulation
• in vitro activation of these cells leads to enhanced secretion of IL-2, IL-4, IL-6, IL-17, and IFN-gamma
• there is higher expression of the activation markers CD25, CD44, and CD69 after TCR ligation compared to controls
• CD8 T cell responses to lymphocytic choriomeningitis virus (LCMV) are augmented in these mice
• mice have 5-fold more CD8+ T cells that are reactive to LCMV eight days after infection compared to wild-type mice
• splenocytes from infected mice also make twice as much IFN-gamma as controls when cultured with LCMV-derived peptides that are antigenic to CD8 + T cells
• bone marrow derived macrophages activated in vitro with LPS produce significantly more IL-6 and IL-12 than controls

cellular





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last database update
04/23/2024
MGI 6.23
The Jackson Laboratory