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Severe Acute T Cell and Antibody‐Mediated Rejection in Ectopic Kidney Allografts With or Without Mouse Polyomavirus Infection

Figure 1: Histologic findings in an allograft kidney from a mouse at the time of peak viremia, 7 days postinfection. There is severe interstitial mononuclear inflammation (A) with intimal arteritis (B). Diffuse C4d deposition in the peritubular capillaries (C) indicates that antibody mediated rejection is also contributing to the graft injury. No MPyV T-antigen could be documented in the renal tubules (data not shown) using an immunohistochemical staining procedure that worked successfully on a virus infected 3T3 cell line used as a positive control (D). A color version of this figure is available online. animal models of this disease. A study recently published in the journal investigated how several clinically relevant variables affect the magnitude of kidney injury in this model (1). No viral antigens were demonstrated in renal tubules.