| Autor: |
I J, Bristol, M A, Farmer, Y, Cong, X X, Zheng, T B, Strom, C O, Elson, J P, Sundberg, E H, Leiter |
| Rok vydání: |
2001 |
| Předmět: |
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| Zdroj: |
Inflammatory bowel diseases. 6(4) |
| ISSN: |
1078-0998 |
| Popis: |
Severity of inflammatory bowel disease in IL-10 gene-targeted mice is in part determined by genetic background. In the current study, a targeted IL-10 gene was transferred into the C3H/HeJBir substrain, known to exhibit high T-cell and B-cell responses to enteric flora, and to be highly sensitive to colitigenic stress. IL-10-deficient C3H/HeJBir mice developed early onset colitis in contrast to IL-10-deficient C57BL/6J congenic mice. Histopathologic analysis of disease in C3H/HeJBir.Il10-/- and C57BL/6J.Il10-/- mice showed significant differences at all ages studied. Hybrids of these congenic strains (F1.Il10-/-) were produced to study the mode of inheritance as well as subphenotypes that correlated with histopathology. Lesions in F1 mice were intermediate between parental strains. C3H-contributed subphenotypes that correlated best with histopathology were peripheral blood granulocyte percentage, serum amyloid A concentration, spleen weight/body weight ratio, and mesenteric lymph node weight/ body weight ratio. Neither enhanced humoral immunity (secretory IgA, anti-Escherichia coli cellular membrane Ig) characteristic of C3H/HeJBir, nor T-cell percentages in peripheral blood correlated as well. This study represents a necessary step in elucidating murine genetic modifiers controlling colitis sensitivity. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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