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Torres R, Montero C, Escobar C, Reina M, Acevedo A, Yomayusa N, Gayón D, Pérez J. Early Detection Strategy of BK Polyomavirus Nephropathy in Patients undergoing Renal Transplant: A Single-Center Retrospective Study. Transplantation Reports 2021. [DOI: 10.1016/j.tpr.2021.100077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Gouvêa ALF, Cosendey RIJ, Carvalho FR, Varella RB, de Souza CF, Lopes PF, Silva AA, Rochael MC, de Moraes HP, Lugon JR, Almeida JR. Pilot Study of Early Monitoring Using Urinary Screening for BK Polyomavirus as a Strategy for Prevention of BKV Nephropathy in Kidney Transplantation. Transplant Proc 2017; 48:2310-2314. [PMID: 27742286 DOI: 10.1016/j.transproceed.2016.06.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Urine monitoring programs represent an important strategy for early diagnosis of reactivation of BK polyomavirus (BKV) in kidney transplant recipients. This study analyzes a BKV urine screening model in kidney transplant patients. METHODS Urinary screening for BKV reactivation was performed by urinary decoy cell and polymerase chain reaction (PCR) tests in samples from 32 consecutive kidney transplant patients, collected in a 6-month follow-up period. PCR in plasma samples and BKV immunohistochemical studies to assess BKV renal disease, if a kidney biopsy was indicated, were performed. RESULTS The urinary screening for BKV among 32 renal receptors was positive in 18 patients (56%) by the concomitant use of the decoy cells and/or qualitative PCR at some time during the study period. Transfusion before transplantation was significantly associated with urinary decoy cell positive screening (odds ratio = 11; 95% confidence interval = 1.47 to 82.4; P < .05); and so was male sex (odds ratio = 2.02; 95% confidence interval = 1.07 to 3.83; P < .05). The clinical management of screening positive cases consisted of decreasing or changing the immunosuppression regimen. Sixteen renal biopsies were performed. Immunohistochemistry for SV40 T antigen was negative in all biopsies. After 1 year of follow-up, no patient developed BKV-associated nephropathy, and there was no difference in renal function between patients positive and negative for BKV urinary screening. CONCLUSIONS Early urinary monitoring is effective in detection of BKV replication and represents a good strategy to minimize the deleterious effects caused by the presence of the virus on preservation of graft function.
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Affiliation(s)
- A L F Gouvêa
- Laboratório Multiusuário de Apoio à Pesquisa em Nefrologia e Ciências Médicas (LAMAP), Departamento de Medicina Clínica/Universidade Federal Fluminense, Rio de Janeiro, Brazil; Departamento de Patologia/Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - R I J Cosendey
- Laboratório Multiusuário de Apoio à Pesquisa em Nefrologia e Ciências Médicas (LAMAP), Departamento de Medicina Clínica/Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - F R Carvalho
- Laboratório Multiusuário de Apoio à Pesquisa em Nefrologia e Ciências Médicas (LAMAP), Departamento de Medicina Clínica/Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - R B Varella
- Laboratório Multiusuário de Apoio à Pesquisa em Nefrologia e Ciências Médicas (LAMAP), Departamento de Medicina Clínica/Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - C F de Souza
- Laboratório Multiusuário de Apoio à Pesquisa em Nefrologia e Ciências Médicas (LAMAP), Departamento de Medicina Clínica/Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - P F Lopes
- Laboratório Multiusuário de Apoio à Pesquisa em Nefrologia e Ciências Médicas (LAMAP), Departamento de Medicina Clínica/Universidade Federal Fluminense, Rio de Janeiro, Brazil; Departamento de Patologia/Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - A A Silva
- Laboratório Multiusuário de Apoio à Pesquisa em Nefrologia e Ciências Médicas (LAMAP), Departamento de Medicina Clínica/Universidade Federal Fluminense, Rio de Janeiro, Brazil; Departamento de Patologia/Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - M C Rochael
- Departamento de Patologia/Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - H P de Moraes
- Faculdade de Ciências Médicas/Anatomia Patológica/Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - J R Lugon
- Laboratório Multiusuário de Apoio à Pesquisa em Nefrologia e Ciências Médicas (LAMAP), Departamento de Medicina Clínica/Universidade Federal Fluminense, Rio de Janeiro, Brazil
| | - J R Almeida
- Laboratório Multiusuário de Apoio à Pesquisa em Nefrologia e Ciências Médicas (LAMAP), Departamento de Medicina Clínica/Universidade Federal Fluminense, Rio de Janeiro, Brazil.
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Wang ZY, Hong WL, Zhu ZH, Chen YH, Ye WLE, Chu GY, Li JL, Chen BC, Xia P. Phylogenetic reconstruction and polymorphism analysis of BK virus VP2 gene isolated from renal transplant recipients in China. Exp Ther Med 2015; 10:1759-1767. [PMID: 26640547 PMCID: PMC4665150 DOI: 10.3892/etm.2015.2723] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 08/13/2015] [Indexed: 01/31/2023] Open
Abstract
BK polyomavirus (BKV) is important pathogen for kidney transplant recipients, as it is frequently re-activated, leading to nephropathy. The aim of this study was to investigate the phylogenetic reconstruction and polymorphism of the VP2 gene in BKV isolated from Chinese kidney transplant recipients. Phylogenetic analysis was carried out in the VP2 region from 135 BKV-positive samples and 28 reference strains retrieved from GenBank. The unweighted pair-group method with arithmetic mean (UPGMA) grouped all strains into subtypes, but failed to subdivide strains into subgroups. Among the plasma and urine samples, all plasma (23/23) and 82 urine samples (82/95) were identified to contain subtype I; the other 10 urine samples contained subtype IV. A 86-bp fragment was identified as a highly conserved sequence. Following alignment with 36 published BKV sequences from China, 92 sites of polymorphism were identified, including 11 single nucleotide polymorphisms (SNPs) prevalent in Chinese individuals and 30 SNPs that were specific to the two predominant subtypes I and IV. The limitations of the VP2 gene segment in subgrouping were confirmed by phylogenetic analysis. The conserved sequence and polymorphism identified in this study may be helpful in the detection and genotyping of BKV.
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Affiliation(s)
- Zhang-Yang Wang
- Zhejiang Provincial Top Key Discipline in Surgery, Wenzhou Key Laboratory of Surgery, Department of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Wei-Long Hong
- Zhejiang Provincial Top Key Discipline in Surgery, Wenzhou Key Laboratory of Surgery, Department of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Zhe-Hui Zhu
- Zhejiang Provincial Top Key Discipline in Surgery, Wenzhou Key Laboratory of Surgery, Department of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Yun-Hao Chen
- Zhejiang Provincial Top Key Discipline in Surgery, Wenzhou Key Laboratory of Surgery, Department of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Wen-LE Ye
- Transplantation Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Guang-Yu Chu
- Transplantation Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Jia-Lin Li
- Transplantation Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Bi-Cheng Chen
- Zhejiang Provincial Top Key Discipline in Surgery, Wenzhou Key Laboratory of Surgery, Department of Surgery, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Peng Xia
- Transplantation Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
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