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Phenotypes Associated with This Genotype
Genotype
MGI:3624973
Allelic
Composition
X/Yaa
Genetic
Background
BXSB/MpJ
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Yaa mutation (18 available); any Yaa mutation (21 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• mean longevity for males is 155 +/- 13 days compared to 442 +/- 29 days for littermate females (J:6235)
• castration does not significantly alter longevity (J:6235)
• median survival is 8 months (J:7308)

immune system
• 4-fold increase in spleen weight
• frequency of C3d receptor bearing cells is increased in young mice but declines with age
• increase in the frequency and absolute numbers of Ig-bearing cells associated with advanced autoimmune disease is seen in males but not females
• frequency of Ig-bearing cells is increased in the thymus
• at 14 weeks of age, more than normal splenic CD4+ Foxp3+ CD25+ T cells and very few splenic CD8+ Foxp3+ CD25+ T cells and higher than normal expression of CD122 on CD8+ splenic T cells
• increase in peripheral blood mononuclear cells lacking T and B cells markers is seen by 2 months of age and bemose more severe with age
• at 8 months of age a 16-fold increase in monocytes is seen in males compared to females
• scattered follicular distribution in the spleen and large extrafollicular accumulations of CD138+ plasma cells and plasmablasts are found at 14 weeks of age
• relative to BXSB.B6-Yaa+ at 14 weeks of age but not at 6 weeks of age
(J:93740)
(J:179430)
• relative to BXSB.B6-Yaa+ controls
• relative to BXSB.B6-Yaa+ controls
• infiltrated with a mixed population of lymphocytes, plasma cells, and histiocytes often blurring the architecture of the node
• moderately enlarged
• at 18 to 25 weeks the combined weight of the axillary, mesenteric, and renal lymph nodes is increased 5-fold compared to C57BL/6J males
• accelerated autoimmune syndrome relative to females of the same strain (J:6235)
(J:108760)
• erythrocyte autoantibodies were found in 7 of 13 males between 16 and 25 weeks of age
• serum anti-nuclear antibodies are found at 6 weeks of age and increased levels at 14 weeks of age
• acute to subacute exudative and proliferative glomerulonephritis

hematopoietic system
• 4-fold increase in spleen weight
• frequency of C3d receptor bearing cells is increased in young mice but declines with age
• decreased at 16 weeks of age compared to C57BL/6J males
• increase in the frequency and absolute numbers of Ig-bearing cells associated with advanced autoimmune disease is seen in males but not females
• frequency of Ig-bearing cells is increased in the thymus
• at 14 weeks of age, more than normal splenic CD4+ Foxp3+ CD25+ T cells and very few splenic CD8+ Foxp3+ CD25+ T cells and higher than normal expression of CD122 on CD8+ splenic T cells
• increase in peripheral blood mononuclear cells lacking T and B cells markers is seen by 2 months of age and bemose more severe with age
• at 8 months of age a 16-fold increase in monocytes is seen in males compared to females
• scattered follicular distribution in the spleen and large extrafollicular accumulations of CD138+ plasma cells and plasmablasts are found at 14 weeks of age
• relative to BXSB.B6-Yaa+ at 14 weeks of age but not at 6 weeks of age
(J:93740)
(J:179430)
• relative to BXSB.B6-Yaa+ controls
• relative to BXSB.B6-Yaa+ controls

renal/urinary system
• seen at 4 months of age
• acute to subacute exudative and proliferative glomerulonephritis
• glomerular depositions of IgG are found at 14 weeks of age

homeostasis/metabolism
• seen at 4 months of age

growth/size/body
• 4-fold increase in spleen weight


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
04/16/2024
MGI 6.23
The Jackson Laboratory