- abnormal T cell subpopulation ratio / MGI
- abnormal positive T cell selection / MGI
- increased CD8-positive, alpha-beta T cell number / MGI
- abnormal response to transplant / MGI
- absent CD8-positive, alpha-beta T cells / MGI
- demyelination / MGI
- increased susceptibility to viral infection / MGI
- abnormal cytotoxic T cell physiology / MGI
- immune system phenotype / MGI
C.129-Cd8atm1Mak/Cnbc
Status | Available to order |
EMMA ID | EM:07228 |
International strain name | C.129-Cd8atm1Mak/Cnbc |
Alternative name | CD8 Lyt-2 |
Strain type | Targeted Mutant Strains : Knock-out |
Allele/Transgene symbol | Cd8atm1Mak |
Gene/Transgene symbol | Cd8a |
Information from provider
Provider | Tak W Mak |
Provider affiliation | Division of Stem Cell and Developmental Biology, Advanced Medical Discovery Institute/Ontario Cancer Institute |
Genetic information | A mutant mouse strain without CD8 (Lyt-2 and Lyt-3) expression on the cell surface has been generated by disrupting the (Cd8a) Lyt-2 gene using embryonic stem cell technology. |
Phenotypic information | In these mice, CD8+ T lymphocytes are not present in peripheral lymphoid organs, but the CD4+ T lymphocyte population seems to be unaltered. Cytotoxic response of T lymphocytes from these mice against alloantigens and viral antigens is dramatically decreased. Proliferative response against alloantigens and in vivo help to B lymphocytes, however, are not affected. |
Breeding history | Pure BALB/c, backcrossed 10 times. |
References |
|
Homozygous fertile | yes |
Homozygous viable | yes |
Homozygous matings required | no |
Immunocompromised | not known |
Information from EMMA
Archiving centre | CNB-CSIC, Centro Nacional de Biotecnologia, Madrid, Spain |
Animals used for archiving | heterozygous BALB/c, wild-type BALB/c |
Stage of embryos | 2-cell |
Disease and phenotype information
Orphanet associated rare diseases, based on orthologous gene matching
- Susceptibility to respiratory infections associated with CD8alpha chain mutation / Orphanet_169085
MGI phenotypes (allele matching)
MGI phenotypes (gene matching)
- absent CD8-positive, alpha-beta T cells / MGI
- demyelination / MGI
- abnormal T cell differentiation / MGI
- no abnormal phenotype detected / MGI
- abnormal double-positive T cell morphology / MGI
- increased susceptibility to viral infection / MGI
- abnormal T cell subpopulation ratio / MGI
- abnormal CD8-positive, alpha-beta T cell physiology / MGI
- abnormal positive T cell selection / MGI
- abnormal CD8-positive, alpha beta T cell morphology / MGI
- abnormal cytotoxic T cell physiology / MGI
- decreased double-positive T cell number / MGI
- immune system phenotype / MGI
- hematopoietic system phenotype / MGI
- abnormal dendritic cell morphology / MGI
- abnormal response to transplant / MGI
- increased CD4-positive, alpha beta T cell number / MGI
- abnormal CD4-positive T cell differentiation / MGI
- increased CD8-positive, alpha-beta T cell number / MGI
- decreased CD8-positive, alpha-beta T cell number / MGI
- abnormal CD8-positive, alpha-beta T cell differentiation / MGI
- abnormal gamma-delta intraepithelial T cell morphology / MGI
- increased CD8-positive, alpha-beta memory T cell proliferation / MGI
Literature references
- CD8 is needed for development of cytotoxic T cells but not helper T cells.;Fung-Leung W P, Schilham M W, Rahemtulla A, Kündig T M, Vollenweider M, Potter J, van Ewijk W, Mak T W, ;1991;Cell;65;443-9; 1673361
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