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An Unexpected Surge in Plasma BKPyV Viral Load Heralds the Development of BKPyV-Associated Metastatic Bladder Cancer in a Lung Transplant Recipient With BKPyV Nephropathy
Journal article   Open access   Peer reviewed

An Unexpected Surge in Plasma BKPyV Viral Load Heralds the Development of BKPyV-Associated Metastatic Bladder Cancer in a Lung Transplant Recipient With BKPyV Nephropathy

S Kuppachi, D Holanda, M Eberlein, B Alexiev, A J Tyler, M C Wissel, S B Kleiboeker and C P Thomas
American journal of transplantation, Vol.17(3), pp.813-818
03/2017
DOI: 10.1111/ajt.14057
PMID: 27647675
url
https://doi.org/10.1111/ajt.14057View
Published (Version of record) Open Access

Abstract

We report a lung transplant recipient who developed BK polyoma virus (BKPyV) DNAemia and BKPyV nephropathy. With careful management of his immunosuppression he achieved significant reduction in BKPyV DNAemia and stabilization of his kidney function. He later developed a high-grade bladder cancer and shortly thereafter he experienced a major upsurge in the level of BKPyV DNAemia that coincided with the discovery of hepatic metastasis. Retrospectively, the bladder cancer and the hepatic secondary tumor stained uniformly for SV40 large T antigen, and the BKPyV DNA sequences identified in plasma corresponded to BKPyV DNA within hepatic tissue, indicating that the spike in BKPyV load was likely derived from the circulating tumor cells or cell-free tumor DNA following metastases of a BKV-associated cancer. To the best of our knowledge, this is the first description of a surge in BKPyV load in a patient with controlled BKPyVN that heralded the appearance of a metastatic urothelial malignancy. This report discusses the literature on BKPyV-associated malignancies and the possibility that unexplained increases in BKPyV DNAemia may be a biomarker for metastatic BKPyV-related urothelial cancer.
Immunosuppression Polyomavirus Infections - complications Prognosis Pulmonary Disease, Chronic Obstructive - surgery Tumor Virus Infections - virology Humans Risk Factors Urinary Bladder Neoplasms - etiology Pulmonary Disease, Chronic Obstructive - virology Graft Rejection - etiology Graft Survival Male BK Virus - pathogenicity Lung Transplantation - adverse effects Transplant Recipients Viral Load Tumor Virus Infections - complications Virus Replication Polyomavirus Infections - virology Urinary Bladder Neoplasms - pathology Aged Graft Rejection - pathology

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