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Pollack S, Plonsky-Toder M, Tibi R, Yakubov R, Libinson-Zebegret I, Magen D. Protocolized polyoma BK viral load monitoring and high-dose immunoglobulin treatment in children after kidney transplant. Clin Kidney J 2024; 17:sfad293. [PMID: 38213487 PMCID: PMC10783260 DOI: 10.1093/ckj/sfad293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Indexed: 01/13/2024] Open
Abstract
Background BKPyV virus nephropathy (BKPyVAN) is diagnosed in 5%-16% of pediatric renal transplant recipients (PRTR) and preceded by BKPyV-viruria and DNAemia. Despite the risk of irreversible transplant damage associated with BKPyVAN, evidence-based consensus guidelines for BKPyVAN prevention are still lacking. In this retrospective study, we examined the safety and efficacy of high-dose intravenous immunoglobulin (HD-IVIG) therapy for prevention of BKPyVAN in PRTR with significant BKPyV-viruria/DNAemia. Methods Between January 2013 and December 2022, all PRTR under our care underwent routine urine and blood testing for BKPyV viral load, using specific polymerase chain reaction (PCR). BKPyV DNAemia, with <103 copies/mL, with BKPyV viruria <107 copies/mL, with no evidence of BKPyVAN, were managed with 50% dose reduction of mycophenolate mofetil (MMF). Patients showing no decline in BKPyV viral load within two months of MMF dose reduction were managed with HD-IVIG (2 g/kg). Results Seventy patients were recruited during a ten-year period and 31/70 patients (44%) demonstrated significant post-transplantation BKPyV-viruria/DNAemia, while 13/31 (42%) patients were unresponsive to MMF dose reduction, and were administered HD-IVIG. Of these, 12/13 (92%) patients achieved BKPyV viral clearance within six months from completion of HD-IVIG therapy and 1/13 patient (8%) was unresponsive to HD-IVIG therapy, showing increased BKPyV viral load. There were no major adverse events associated with HD-IVIG, and none of our patients developed BKPyVAN during the study period. Conclusions Prophylactic HD-IVIG therapy in PRTR with significant BKPyV-viruria/DNAemia unresponsive to MMF dose reduction is safe and might be effective in preventing BKPyVAN. Our findings remain to be established by large-scale prospective studies.
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Affiliation(s)
- Shirley Pollack
- Pediatric Nephrology Institute, Ruth Children's Hospital, Rambam Health Care Campus, Technion Faculty of Medicine, Haifa, Israel
| | - Moran Plonsky-Toder
- Pediatric Nephrology Institute, Ruth Children's Hospital, Rambam Health Care Campus, Technion Faculty of Medicine, Haifa, Israel
| | - Rami Tibi
- Pediatric Nephrology Institute, Ruth Children's Hospital, Rambam Health Care Campus, Technion Faculty of Medicine, Haifa, Israel
| | - Renata Yakubov
- Pediatric Nephrology Institute, Ruth Children's Hospital, Rambam Health Care Campus, Technion Faculty of Medicine, Haifa, Israel
| | - Irina Libinson-Zebegret
- Pediatric Nephrology Institute, Ruth Children's Hospital, Rambam Health Care Campus, Technion Faculty of Medicine, Haifa, Israel
| | - Daniella Magen
- Pediatric Nephrology Institute, Ruth Children's Hospital, Rambam Health Care Campus, Technion Faculty of Medicine, Haifa, Israel
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Sheth RT, Ibrahim DY, Gohara AF, Ekwenna O, Rees MA, Malhotra D, Gunning WT. Concomitant Polyoma BK Virus and West Nile Virus in Renal Allografts. Pathogens 2023; 12:1456. [PMID: 38133339 PMCID: PMC10748228 DOI: 10.3390/pathogens12121456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/11/2023] [Accepted: 12/13/2023] [Indexed: 12/23/2023] Open
Abstract
Surveillance of the renal allograft recipient is essential when monitoring renal function to detect the early onset of rejection and alter therapeutic treatments to treat acute rejection or other causes and improve long-term graft function. If renal function begins to deteriorate, a renal biopsy is often indicated to assess the Banff grade of potential rejection or other causes, especially in the setting of polyoma BK viral load elevation. Although BK infection in the allograft is asymptomatic, reactivation of the virus is known to be associated with the acceleration of pathologic change and a poor outcome in the allograft. BK reactivation in a transplant kidney is not uncommon, and determining inflammation related to the virus versus acute rejection is paramount for appropriate immunosuppressive therapy management. We identified a concomitant polyoma BK virus and West Nile Virus (WNV) infection in two renal transplant patients which, to our knowledge, has not previously been reported. However, other concomitant infections have been reported in renal allografts including BK virus and cytomegalovirus (CMV), CMV and hepatitis C (HCV), and HCV and human immunodeficiency virus (HIV). As WNV has become endemic in many regions of the United States, and since the transmission of the virus via transplanted organs is associated with significant morbidity and mortality, it may be prudent to consider serologic screening for WNV in living donors prior to organ procurement. Regardless, the observation we made and report here should underscore the potential for concomitant viral infections that may be masked when a renal allograft has a significant inflammatory response to BK virus.
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Affiliation(s)
- Riddhish T. Sheth
- Department of Pathology, University of Toledo, Toledo, OH 43614, USA; (R.T.S.); (D.Y.I.); (A.F.G.)
| | - Dalia Y. Ibrahim
- Department of Pathology, University of Toledo, Toledo, OH 43614, USA; (R.T.S.); (D.Y.I.); (A.F.G.)
| | - Amira F. Gohara
- Department of Pathology, University of Toledo, Toledo, OH 43614, USA; (R.T.S.); (D.Y.I.); (A.F.G.)
| | - Obi Ekwenna
- Department of Urology, University of Toledo, Toledo, OH 43614, USA; (O.E.); (M.A.R.)
| | - Michael A. Rees
- Department of Urology, University of Toledo, Toledo, OH 43614, USA; (O.E.); (M.A.R.)
| | - Deepak Malhotra
- Department of Medicine, University of Toledo, Toledo, OH 43614, USA;
| | - William T. Gunning
- Department of Pathology, University of Toledo, Toledo, OH 43614, USA; (R.T.S.); (D.Y.I.); (A.F.G.)
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3
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Zhou X, Zhang S, Fan J, Zhu X, Hu S. Risk factors for BK virus-associated hemorrhagic cystitis after allogeneic hematopoietic stem cell transplantation: A systematic review and meta-analysis. Clin Transplant 2023; 37:e15121. [PMID: 37676427 DOI: 10.1111/ctr.15121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/24/2023] [Accepted: 08/30/2023] [Indexed: 09/08/2023]
Abstract
OBJECTIVE AND BACKGROUND BK virus-associated hemorrhagic cystitis (BKV-HC) is an intractable complication leading to higher mortality and prolonged hospitalization among allogeneic hematopoietic stem cell transplantation (allo-HCT) recipients. Therefore, identifying the potential risk factors of BKV-HC after allo-HCT is crucial to improve prognosis and for early prevention. However, the risk factors for BKV-HC remain debatable. Therefore, we conducted a systematic review and meta-analysis to identify the risk factors for BKV-HC, for early prevention of the occurrence of BKV-HC and to improve the quality of life and prognosis of allo-HCT recipients. METHODS We searched relevant studies from PubMed, EMBASE, and the Cochrane Library up to February 2023. The odds ratios (ORs) and the corresponding 95% confidence intervals (CIs) of all risk factors were calculated to evaluate their effects on the occurrence of BKV-HC. RESULTS Overall, 11 studies involving 2556 allo-HCT recipients were included in this meta-analysis. All included studies were retrospective and published between 2013 and 2022. We found that male sex (OR = 1.32; 95% CI, 1.07-1.62; p = .009, I2 = 34%), haploidentical donor (OR = 1.84; 95% CI, 1.18-2.87; p = .007, I2 = 23%), myeloablative conditioning (OR = 1.76; 95% CI, 1.36-2.28; p < .0001, I2 = 45%), acute graft versus host disease (aGVHD) (OR = 2.73; 95% CI, 2.02-3.69; p < .0001, I2 = 46%), chronic graft versus host disease (cGVHD) (OR = 1.71; 95% CI, 1.12-2.60; p = .01, I2 = 0%), and cytomegalovirus (CMV) reactivation (OR = 3.13; 95% CI, 1.12-8.78; p = .03, I2 = 79%) were significantly associated with BKV-HC in the univariable analysis. CONCLUSIONS Our meta-analysis indicated that male sex, haploidentical donor, myeloablative conditioning, aGVHD, cGVHD, and CMV reactivation were potential risk factors for BKV-HC.
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Affiliation(s)
- Xuemei Zhou
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Senlin Zhang
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Junjie Fan
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
| | - Xiaoping Zhu
- Department of Quality and Safety Control, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Shaoyan Hu
- Department of Hematology and Oncology, Children's Hospital of Soochow University, Suzhou, China
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4
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Hou YB, Chang S, Chen S, Zhang WJ. Intravenous immunoglobulin in kidney transplantation: Mechanisms of action, clinical applications, adverse effects, and hyperimmune globulin. Clin Immunol 2023; 256:109782. [PMID: 37742791 DOI: 10.1016/j.clim.2023.109782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 09/11/2023] [Accepted: 09/20/2023] [Indexed: 09/26/2023]
Abstract
Intravenous immunoglobulin (IVIG) has been developed for over 40 years. The mechanisms of action of IVIG are complex and diverse, and there may be multiple mechanisms that combine to influence it. IVIG has been used in kidney transplantation for desensitization, treatment of antibody-mediated rejection, and ABO-incompatible transplantation. and treatment or prevention of some infectious diseases. Hyperimmune globulins such as cytomegalovirus hyperimmune globulin (CMV-IG) and hepatitis B hyperimmune globulin (HBIG) have also been used to protect against cytomegalovirus and hepatitis B virus, respectively. However, IVIG is also associated with some rare but serious adverse effects and some application risks, and clinicians need to weigh the pros and cons and develop individualized treatment programs to benefit more patients. This review will provide an overview of the multiple mechanisms of action, clinical applications, adverse effects, and prophylactic measures of IVIG, and hyperimmune globulin will also be introduced in it.
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Affiliation(s)
- Yi-Bo Hou
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China
| | - Sheng Chang
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China
| | - Song Chen
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China
| | - Wei-Jie Zhang
- Institute of Organ Transplantation, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology; Key Laboratory of Organ Transplantation, Ministry of Education; NHC Key Laboratory of Organ Transplantation; Key Laboratory of Organ Transplantation, Chinese Academy of Medical Sciences, Wuhan 430030, China.
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5
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Avcı B, Baskın E, Gülleroğlu K, Ecevit Z, Ayvazoğlu Soy E, Moray G, Haberal M. BK Polyomavirus Infection and Risk Factors in Pediatric Patients Undergoing Kidney Transplant. EXP CLIN TRANSPLANT 2022; 20:105-111. [PMID: 35570612 DOI: 10.6002/ect.pediatricsymp2022.o34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES BK polyomavirus infection is a critical complication affecting graft survival after kidney transplant. We aimed to determine the frequency, the effect on graft function, and the risk factors of BK polyomavirus infection in pediatric kidney transplant patients. MATERIALS AND METHODS We retrospectively reviewed data of 144 pediatric patients (female/male: 67/77; 0-18 years of age) who received kidney transplants in the past 10 years at our center. Demographic/ laboratory data, kidney failure etiologies, donor types, and immunosuppressive treatments were recorded. Patients were grouped as those with and without BKV infection, with groups compared in terms of transplant age, sex, kidney failure etiology, donor type, immunosuppressive treatments, presence of ureteral stents, acute rejection episodes, accompanying viral infections, glomerular filtration rate, and graft loss rate. RESULTS Twelve patients (8.3%) had BK polyomavirus infection. All 12 patients had viruria (8.3%), 8 (5.5%) had viremia, and 4 (2.8%) had BK polyomavirus nephropathy. Two patients (1.4%) had graft loss because of BK polyomavirus nephropathy. When patients with and without infection were compared, no significant differences were found in terms of sex, transplant age, donor type, presence of a ureteral stent, acute rejection, graft loss, or immunosuppressive treatment (P > .05). Rates of congenital anomalies of the kidney and urinary tract were 30.3% and 66.6% in those without and with BK polyomavirus infection, respectively (P < .05). The group positive for BK polyomavirus had a significantly higher incidence of cytomegalovirus infection versus the group without infection (P < .05). Glomerular filtration rate values at years 1 and 3 were similar between groups (P > .05). CONCLUSIONS Frequency of BK polyomavirus nephropathy in pediatric patients undergoing kidney transplant in our center was consistent with data from other centers. Graft loss can be prevented by early detection and treatment through close periodic control and adequate evaluation of risk factors.
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Affiliation(s)
- Begüm Avcı
- From the Department of Pediatric Nephrology, Başkent University Faculty of Medicine, Ankara, Turkey
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6
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Chen XT, Huang Y, Wang J, Li G, Zhang Y, He LF, Lian YX, Yang SC, Zhao GD, Zhang H, Qiu J, Zhang L, Huang G. Ischemia-Reperfusion Injury and Immunosuppressants Promote Polyomavirus Replication Through Common Molecular Mechanisms. Front Immunol 2022; 13:835584. [PMID: 35281039 PMCID: PMC8914341 DOI: 10.3389/fimmu.2022.835584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 02/03/2022] [Indexed: 11/25/2022] Open
Abstract
Background BK polyomavirus (BKPyV)-associated nephropathy (BKPyVAN) causes renal allograft dysfunction and graft loss. However, the mechanism of BKPyV replication after kidney transplantation is unclear. Clinical studies have demonstrated that immunosuppressants and renal ischemia–reperfusion injury (IRI) are risk factors for BKPyV infection. Studying the pathogenic mechanism of BKPyV is limited by the inability of BKPyV to infect the animal. Mouse polyomavirus (MPyV) is a close homolog of BKPyV. We used a model of MPyV infection to investigate the core genes and underlying mechanism of IRI and immunosuppressants to promote polyomavirus replication. Materials and Methods One-day-old male C57BL/6 mice were intraperitoneally injected with MPyV. At week 9 post-infection, all mice were randomly divided into IRI, immunosuppressant, and control groups and treated accordingly. IRI was established by clamping the left renal pedicle. Subsequently, kidney specimens were collected for detecting MPyV DNA, histopathological observation, and high-throughput RNA sequencing. Weighted gene correlation network analysis (WGCNA), protein–protein interaction network analysis, and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were used to screen for core genes and common signaling pathways involved in promoting MPyV replication by IRI and immunosuppressants. Results After primary infection, MPyV established persistent infection in kidneys and subsequently was significantly increased by IRI or immunosuppressant treatment individually. In the IRI group, viral loads peaked on day 3 in the left kidney, which were significantly higher than those in the right kidney and the control group. In the immunosuppressant group, viral loads in the left kidney were significantly increased on day 3, which were significantly higher than those in the control group. Protein–protein interaction network analysis and WGCNA screened complement C3, epidermal growth factor receptor (EGFR), and FN1 as core genes. Pathway enrichment analysis based on the IRI- or immunosuppressant-related genes selected by WGCNA indicated that the NF-κB signaling pathway was the main pathway involved in promoting MPyV replication. The core genes were further confirmed using published datasets GSE47199 and GSE75693 in human polyomavirus-associated nephropathy. Conclusions Our study demonstrated that IRI and immunosuppressants promote polyomavirus replication through common molecular mechanisms. In future studies, knockdown or specific inhibition of C3, EGFR, FN1, and NF-κB signaling pathway will further validate their critical roles in promoting polyomavirus replication.
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Affiliation(s)
- Xu-Tao Chen
- Department of Organ Transplant, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yang Huang
- Department of Organ Transplant, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jing Wang
- Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - Ge Li
- Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - Yu Zhang
- Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - Li-Fang He
- Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - Yue-Xiao Lian
- Guangdong Provincial Key Laboratory of Laboratory Animals, Guangdong Laboratory Animals Monitoring Institute, Guangzhou, China
| | - Shi-Cong Yang
- Department of Pathology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Guo-Dong Zhao
- Department of Organ Transplant, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hui Zhang
- Department of Organ Transplant, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jiang Qiu
- Department of Organ Transplant, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Lei Zhang
- Department of Organ Transplant, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Gang Huang
- Department of Organ Transplant, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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7
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Abolbashari S, Shakeri M, Hami M, Gholoobi A, Hooshyar Chechaklou A, Damavandi M, Movaqar A, Yousefi R, Meshkat Z, Hajebi-Khaniki S. Higher Viral Load of Polyomavirus Type BK but not JC among Renal Transplant Recipients in Comparison to Donors. IRANIAN JOURNAL OF PATHOLOGY 2022; 17:8-14. [PMID: 35096083 PMCID: PMC8794561 DOI: 10.30699/ijp.2021.535072.2690] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 09/13/2021] [Indexed: 12/18/2022]
Abstract
Background & Objective: Polyomaviruses types BK and JC and Cytomegalovirus (CMV) have been shown to be related to kidney transplantation complications. This study aimed to assess the prevalence of these viruses in patients receiving kidney transplantation. Methods: This cross-sectional study was performed on 40 kidney transplant recipients and 44 donors. Urine samples were used for the extraction of viral DNA. The prevalence of JC and BK viruses and their viral loads were determined by real-time polymerase chain reaction. Results: JC and BK viruses were identified in 31% and 92.3% of all subjects, respectively. The frequency of JC and BK cases was not statistically different between the recipient and donor groups (P>0.05). All patients in the donor group and 96.8% of the recipients were positive for CMV IgG antibody. The mean viral load of BK in donors and recipients was 4.5×1010 and 3.3×1011 copies, respectively. The mean viral load of JC was 8.6×107 copies in donors and 2.9×108 copies in recipients. The distribution of BKV was significantly higher in recipients than donors (P=0.001), while no difference was observed between the two studied groups for JCV. Conclusion: This study showed a relatively high prevalence of BK and JC viruria in both renal transplant donors and recipients. The viral load for BKV, but not JCV, was higher in recipients than in donors.
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Affiliation(s)
- Samaneh Abolbashari
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammadtaghi Shakeri
- Social Determinants of Health Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Hami
- Kidney Transplantation Complications Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Aida Gholoobi
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Mohammasadegh Damavandi
- Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Aref Movaqar
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Razieh Yousefi
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Meshkat
- Antimicrobial Resistance Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Saeedeh Hajebi-Khaniki
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, Iran
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8
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Dumond C, Aulagnon F, Etienne I, Heng AE, Bougnoux ME, Favennec L, Kamar N, Iriart X, Pereira B, Büchler M, Desoubeaux G, Kaminski H, Lussac-Sorton F, Gargala G, Anglicheau D, Poirier P, Scemla A, Garrouste C. Epidemiological and clinical study of microsporidiosis in French kidney transplant recipients from 2005 to 2019: TRANS-SPORE registry. Transpl Infect Dis 2021; 23:e13708. [PMID: 34324771 DOI: 10.1111/tid.13708] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 06/29/2021] [Accepted: 07/01/2021] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Microsporidiosis is an emerging opportunistic infection in renal transplantation (RT) recipients. We aimed to describe its clinical presentation and treatment. MATERIALS AND METHODS We collected microsporidiosis cases identified in RT recipients between 2005 and 2019 in six French centers from the Crystal, Divat and Astre prospective databases. RESULTS We report 68 RT recipients with intestinal microsporidiosis; the patients were predominantly male (61.8%), with a median age of 58 (46-69) years. Infection occurred at a median time of 3 (0.8-6.8) years posttransplant. Only Enterocytozoon bieneusi was found. Microsporidiosis manifested as diarrhea (98.5% of patients) with weight loss (72.1%) and acute renal injury (57.4%) without inflammatory biological parameters. The therapeutic approaches were no treatment (N = 9), reduction of the immunosuppressive regimen (∆IS) (N = 22), fumagillin alone (N = 9), fumagillin and ∆IS (N = 19), and albendazole or nitazoxanide and ∆IS (N = 9). Overall clinical remission was observed in 60 patients (88.2%). We observed no acute kidney rejection, renal transplant failure, or death within 6 months after microsporidiosis. CONCLUSION E. bieneusi is an underestimated opportunistic pathogen in RT recipients, and infection with E. bieneusi leads to diarrhea with important dehydration and acute renal injury. The treatment is based on the reduction of the immunosuppressive regimen and the administration of fumagillin if available.
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Affiliation(s)
- Clément Dumond
- Department of Nephrology, 3iHP, Clermont-Ferrand University Hospital, Clermont-Ferrand, France
| | - Florence Aulagnon
- Department of Nephrology and Kidney Transplantation, Assistance Publique-Hôpitaux de Paris, Necker Hospital, Paris, France
| | - Isabelle Etienne
- Department of Nephrology, Rouen University Hospital, Rouen, France
| | - Anne-Elisabeth Heng
- Department of Nephrology, 3iHP, Clermont-Ferrand University Hospital, Clermont-Ferrand, France
| | - Marie-Elisabeth Bougnoux
- Department of Parasitology, Necker Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Loic Favennec
- Department of Parasitology, Rouen University Hospital, University of Rouen, Mont-Saint-Aignan, France
| | - Nassim Kamar
- Department of Nephrology and Organ Transplantation, Toulouse Rangueil University Hospital, Center for Pathophysiology of Toulouse Purpan, Paul Sabatier University, Toulouse, France
| | - Xavier Iriart
- Service de Parasitologie-Mycologie, CHU Toulouse, Hôpital Purpan, Toulouse, France.,Institut Toulousain des Maladies Infectieuses et Inflammatoires (Infinity), CNRS UMR5051, INSERM UMR1291, UPS, Université Toulouse, Toulouse, France
| | - Bruno Pereira
- Biostatistics Unit (DRCI), Clermont-Ferrand University Hospital, Clermont-Ferrand, France
| | - Mathias Büchler
- Department of Nephrology and Clinical Immunology, Tours University Hospital, Tours, France
| | - Guillaume Desoubeaux
- Department of Parasitology-Mycology- Tropical Medicine, Tours University Hospital, Tours, France
| | - Hannah Kaminski
- Department of Nephrology, Bordeaux University Hospital, Bordeaux, France
| | | | - Gilles Gargala
- Department of Parasitology, Rouen University Hospital, University of Rouen, Mont-Saint-Aignan, France
| | - Dany Anglicheau
- Department of Nephrology and Kidney Transplantation, Assistance Publique-Hôpitaux de Paris, Necker Hospital, Paris, France
| | - Philippe Poirier
- Department of Parasitology, Clermont-Ferrand University Hospital, 3iHP, Clermont-Ferrand, INSERM, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Anne Scemla
- Department of Nephrology and Kidney Transplantation, Assistance Publique-Hôpitaux de Paris, Necker Hospital, Paris, France
| | - Cyril Garrouste
- Department of Nephrology, 3iHP, Clermont-Ferrand University Hospital, Clermont-Ferrand, France
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- Department of Nephrology, 3iHP, Clermont-Ferrand University Hospital, Clermont-Ferrand, France
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