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Phenotypes Associated with This Genotype
Genotype
MGI:3843661
Allelic
Composition
Il6sttm2Thir/Il6sttm2Thir
Genetic
Background
Not Specified
Find Mice Using the International Mouse Strain Resource (IMSR)
Mouse lines carrying:
Il6sttm2Thir mutation (1 available); any Il6st mutation (84 available)
phenotype observed in females
phenotype observed in males
N normal phenotype
mortality/aging
• pups die within one day of birth

immune system
• in lethally irradiated wild-type mice receiving mutant fetal liver cells, there is a 45% reduction in the number of B-1a B cells found in the peritoneum
• the primary and secondary antigen-specific IgG1 response to immunization with T cell dependent antigen is reduced in lethally irradiated mice receiving mutant fetal liver cells
• in lethally irradiated wild-type mice receiving mutant fetal liver cells, IgG2a levels are significantly lower than controls
• the primary antigen-specific IgG2a response to immunization with T cell dependent antigen is also reduced in these chimeric mice
• in lethally irradiated wild-type mice receiving mutant fetal liver cells, IgG2b levels are significantly lower than controls
• the primary and secondary antigen-specific IgG2b response to immunization with T cell dependent antigen is also reduced in these chimeric mice
• the secondary antigen-specific IgM response to immunization with T cell dependent antigen is increased in lethally irradiated mice receiving mutant fetal liver cells
• bone marrow derived dendritic cells treated with IL-6 have a greater reduction in MHC-II surface expression than in controls
• dendritic cells isolated from lymph nodes have a 40% reduction in surface expression of MHC-II
• in lethally irradiated mice receiving mutant fetal liver cells, IFN-gamma secretion is 0.6-fold of that in wild-type mice

hematopoietic system
• there is a slight but significant reduction in CFU-M isolated from the bone marrow when macrophage-colony stimulating factor is used as a stimulus
• in lethally irradiated wild-type mice receiving mutant fetal liver cells, there is a 45% reduction in the number of B-1a B cells found in the peritoneum
• the primary and secondary antigen-specific IgG1 response to immunization with T cell dependent antigen is reduced in lethally irradiated mice receiving mutant fetal liver cells
• in lethally irradiated wild-type mice receiving mutant fetal liver cells, IgG2a levels are significantly lower than controls
• the primary antigen-specific IgG2a response to immunization with T cell dependent antigen is also reduced in these chimeric mice
• in lethally irradiated wild-type mice receiving mutant fetal liver cells, IgG2b levels are significantly lower than controls
• the primary and secondary antigen-specific IgG2b response to immunization with T cell dependent antigen is also reduced in these chimeric mice
• the secondary antigen-specific IgM response to immunization with T cell dependent antigen is increased in lethally irradiated mice receiving mutant fetal liver cells


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
03/18/2025
MGI 6.24
The Jackson Laboratory