cardiovascular system
N |
• animals have normal sized hearts, normal ECG, and show no sign of autoimmune pathology
|
• recipient animals develop cardiomegaly by 12 weeks after transfer
|
• mice receiving splenic lymphocytes from animals with heart block display first-degree heart block as early as 2 weeks after transfer, with 50% progressing to complete heart block in 8 weeks
|
• recipient animals develop mononuclear cell infiltrates within heart wall by 12 weeks after transplant
|
myocarditis
(
J:113267
)
• when young mice receive splenic lymphocytes from older NOD.DQ8/H2Ab-1 mice with heart block, myocarditis is triggered in 100% of recipients
|
immune system
• recipient animals develop mononuclear cell infiltrates within heart wall by 12 weeks after transplant
|
myocarditis
(
J:113267
)
• when young mice receive splenic lymphocytes from older NOD.DQ8/H2Ab-1 mice with heart block, myocarditis is triggered in 100% of recipients
|
• anticardiac myosin autoantibodies reach a titer of 1:10000 in recipient mice at 12 weeks posttransfer
|
• younger mice receiving splenic lymphocytes from older DQ8 transgenic, H2-Ab1-null mice with heart block develop heart block, myocarditis, and autoantibodies
• when younger mice receive serum from the same older animals, no cardiac pathology is observed
• recipient mice receiving CD4 T cells from older donor animals with heart block develop heart block as early as 4 weeks posttransfer; all animals are diseased by 12 weeks and upon necropsy, heart are enlarged
• mononuclear cells are more numerous and infiltrates more widespread than in animals that receive total splenocytes (containing CD4 T cells) in the myocardium
• disease onset is somewhat accelerated compared to recipients receiving total lymphocytes;
|
growth/size/body
• recipient animals develop cardiomegaly by 12 weeks after transfer
|