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| Stock Number |
Strain Name Strain Description |
Standard Supply |
| 003610 | B6.129S4-Cd80tm1Shr Cd86tm2Shr/J | Repository- Live |
| Cd80/Cd86-mediated signaling is critical to germinal center formation and Ig class switching in vivo. Mice homozygous for both the Cd80 (B7-1) and Cd86 (B7-2) targeted mutations are viable, fertile and have a normal life span. Homozygous null Cd80/Cd86 mice fail to generate antigen specific IgG1 and IgG2a responses. During the postimmunization period (seven-10 days) they have smaller spleens devoid of germinal centers. Unimmunized null mice exhibit a three to five fold reduction in total serum immunoglobulin and IgG2a. Levels of IgG1 are also reduced five to 10 fold. Levels of IgM and IgG3 are elevated three to five fold. When immunized, antigen specific IgG1 and IgG2a isotype levels are 0.1% that of wild-type levels. Levels remain low even when immunization is performed with adjuvent. This strain is also resistant to myelin oligodendrocyte glycoprotein (MOG) 35-55 peptide-induced experimental autoimmune encephalomyelitis (EAE), a T cell-mediat ..... For more information please see the full phenotype on the strain data sheet | ||
| 003609 | B6.129S4-Cd86tm1Shr/J | Repository- Live |
| Cd86 (B7-2) null mice are viable and fertile. Unimmunized mice have normal levels of serum immunoglobulin and normal numbers of B and T lymphocytes. Upon intravenous immunization without adjuvant, they fail to form germinal centers or undergo isotype switching and antigen specific IgG1 and IgG2a isotypes are found to be 5% that of wild type levels. When the immunization route is subcutaneous, IgG1 and IgG2a levels are the same as in wild type mice. | ||
| 004762 | NOD.129S4-Cd86tm1Shr/JbsJ | Cryopreserved - Ready for recovery |
| The NOD.129S4-Cd86tm1Shr/JbsJ homozygous mice fail to produce functional protein in T cells. Mice carrying this allele are protected from diabetes. Some homozygote mice have delayed onset peri-insulitis, which does not progress to severe insulitis. Beginning at 20 weeks of age, homozygous mice begin developing spontaneous autoimmune peripheral polyneuropathy marked by symmetrical mild hind limb paralysis. By 32 weeks of age 100% female and 30% males are severely affected with hind limb paralysis and moderate foreleg paralysis. Histological evaluation shows severe inflammation and mononuclear infiltrates in the peripheral nervous system. Skeletal muscle of severely affected mice showed focal neurogenic atrophy, but no cellular infitration. No detectable lesions were found in the brain or spinal cord. This phenotype has not been observed on C57BL/6 or 129 backgrounds (Salomon et al, 2001). NOD.129S4- Cd86tm1Shr /JbsJ provides a useful model for studyin ..... For more information please see the full phenotype on the strain data sheet | ||
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