immune system
• 90% of islets are extensively infiltrated by T cells bearing transgenic TCRs, B cells and some macrophages
• however, there are no symptoms of diabetes
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• there is reduced surface expression of T cell receptor components compared to mice transgenic for just the TCR transgene
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• there is a reduced number of CD4-positive thymocytes
• CD4 T cell numbers in the lymph nodes are reduced by about half
• the number of lymph node CD4 T cells bearing a transgenic TCR is reduced 2- to 4- fold compared to mice transgenic just for the TCR
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• CD4 T cells have a reduced capability to activate and help B cell antibody production in vivo
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• in vitro TCR stimulation leads to reduced expression of CD69 compared to T cells from mice transgenic for just the TCR
|
• CD4 T cells expressing the transgenic TCR have a somewhat reduced proliferative response to hen egg lysozyme antigen compared to CD4 T cells from mice carrying just the TCR transgene
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hematopoietic system
• there is reduced surface expression of T cell receptor components compared to mice transgenic for just the TCR transgene
|
• there is a reduced number of CD4-positive thymocytes
• CD4 T cell numbers in the lymph nodes are reduced by about half
• the number of lymph node CD4 T cells bearing a transgenic TCR is reduced 2- to 4- fold compared to mice transgenic just for the TCR
|
• CD4 T cells have a reduced capability to activate and help B cell antibody production in vivo
|
• in vitro TCR stimulation leads to reduced expression of CD69 compared to T cells from mice transgenic for just the TCR
|
• CD4 T cells expressing the transgenic TCR have a somewhat reduced proliferative response to hen egg lysozyme antigen compared to CD4 T cells from mice carrying just the TCR transgene
|
endocrine/exocrine glands
• 90% of islets are extensively infiltrated by T cells bearing transgenic TCRs, B cells and some macrophages
• however, there are no symptoms of diabetes
|
cellular
• CD4 T cells expressing the transgenic TCR have a somewhat reduced proliferative response to hen egg lysozyme antigen compared to CD4 T cells from mice carrying just the TCR transgene
|