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Phenotypes Associated with This Genotype
Genotype
MGI:5698264
Allelic
Composition
Tnfaip3tm1Homy/Tnfaip3tm1Homy
Tg(Mx1-cre)1Cgn/?
Genetic
Background
involves: 129S6/SvEvTac * C57BL/6J * CBA/J
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Tg(Mx1-cre)1Cgn mutation (10 available)
Tnfaip3tm1Homy mutation (1 available); any Tnfaip3 mutation (44 available)
phenotype observed in females
phenotype observed in males
N normal phenotype

Inflammation in the lung and liver and destruction of spleen architecture of Tnfaip3tm1Homy/Tnfaip3tm1Homy Tg(Mx1-cre)1Cgn/? mice

growth/size/body
• spontaneous emaciation and cachexia without stimulation with polyinosinic:polycytidylic acid (pIpC)

mortality/aging
• most mice die within six months of birth

hematopoietic system
N
• no significant differences in WBC and platelets between homozygotes and controls at 3 and 6 months
• proliferation of myeloid cells
• progressive anemia
• reduced B lymphoid cell numbers in peripheral blood
• destruction of spleen architecture due to proliferation of white blood cells of myeloid origin

immune system
• proliferation of myeloid cells
• reduced B lymphoid cell numbers in peripheral blood
• destruction of spleen architecture due to proliferation of white blood cells of myeloid origin
• significantly increased levels of GM-CSF
• significantly increased TNF-alpha levels
• swelling of lymph nodes
• infiltration with hematopoietic cells
• infiltration of lungs with hematopoietic cells

liver/biliary system
• infiltration with hematopoietic cells

respiratory system
• infiltration of lungs with hematopoietic cells

homeostasis/metabolism
• significantly increased levels of GM-CSF
• significantly increased TNF-alpha levels


Contributing Projects:
Mouse Genome Database (MGD), Gene Expression Database (GXD), Mouse Models of Human Cancer database (MMHCdb) (formerly Mouse Tumor Biology (MTB)), Gene Ontology (GO)
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last database update
01/06/2026
MGI 6.24
The Jackson Laboratory