Patient | 1 | 2 | 3 | 4 | 5 | ||||
---|---|---|---|---|---|---|---|---|---|
Pre-KT | Post-KT | 1st post-KT biopsy | 2nd post-KT biopsy* | 3rd post-KT biopsy | Post-KT | Post-KT | 1st post-KT biopsy | 2nd post-KT biopsy | |
Microscopic pattern | MPGN | MPGN | Mild mesangial proliferation | Mild mesangial proliferation | MPGN + Crescents | Moderate to severe mesangial proliferation | Diffuse proliferation | Moderate mesangial proliferation | MPGN |
Glomeruli sclerosed (%) | 24 | 0 | 7.6 | 0 | 26.7 | 0 | 27.8 | 0 | 5.3 |
Crescents (%) | 23.8 | 16.7 | 0 | 0 | 53.3 | 0 | 0 | 3 | 10.5 |
IF/TA | Moderate | Mild | No IF/TA | No IF/TA | moderate | Mild | Moderate | Mild | Moderate |
IgG isotype | IgG3/kappa | IgG3/kappa | None | IgG3/kappa | IgG3/kappa | IgG3/Lambda | IgG3/Lambda | IgG3/kappa | IgG3/kappa |
C3 | ++ | ++ | – | ++ | – | +++ | ++ | ++ | ++ |
C1q | ++ | + | – | – | + | +++ | ++ | + | ++ |
Electron-dense deposits | GBM + mesangial | GBM + mesangial | Negative | Mainly mesangial | Subendothelial + mesangial | Subendothelial + mesangial + subepithelial | GBM | GBM + mesangial | GBM + mesangial |