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Ferreira Menoni SM, Leon LL, de Lima RG, Lutaif ACGDB, Prates LC, Palma LMP, Costa SCB, Belangero VMS, Bonon SHA. Characterization of Herpesviridae Family Members, BK Virus, and Adenovirus in Children and Adolescents with Nephrotic Syndrome. Viruses 2024; 16:1017. [PMID: 39066180 PMCID: PMC11281385 DOI: 10.3390/v16071017] [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: 04/01/2024] [Revised: 05/02/2024] [Accepted: 05/03/2024] [Indexed: 07/28/2024] Open
Abstract
Since the significance of viral infections in children and adolescents with nephrotic syndrome (NS) is yet to be defined, this study intended to estimate the occurrence, pattern, and outcomes of some DNA viral infections in children with NS. METHODS A prospective study was conducted to determine the genome identification of the viruses Epstein-Barr (EBV), human cytomegalovirus (HCMV), human herpesvirus 6 (HHV-6 type A and type B) and 7 (HHV-7), polyomavirus (BKV), and human adenovirus (HAdV) in plasma and urine samples of pediatric patients with NS. RESULTS A total of 35 patients aged 1 to 18 years with NS and under immunosuppressant drugs participated in the study. Plasma and urine samples were collected at regular intervals during a median follow-up of 266 days (range 133-595), and DNA was analyzed to detect the selected DNA viruses. Eleven patients (31.4%) had active virus infections, and patterns were classified as coinfection, recurrent, and consecutive. Of these, six patients (54.5%) presented viral coinfection, six (54.5%) viral recurrence, and seven patients (63.3%) had viral consecutive infection. Ten of the eleven patients with active infection had a proteinuria relapse (91%) and eight (72.7%) were hospitalized (p = 0.0022). Active HCMV infection was the most frequent infection and was observed in six patients (54.5%), three of the eleven patients (27.2%) had suspected HCMV disease in the gastrointestinal tract, and one had HHV-7 coinfection. The frequency of other infections was: 9% for HHV-6, 45.5% for BKV, 27.3% for HHV-7, 18.2% for EBV, and 18.2% for HAdV. CONCLUSION viral infections, especially HCMV, can be an important cause of morbidity and nephrotic syndrome relapse in children.
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Affiliation(s)
- Silvia Mendonça Ferreira Menoni
- Laboratory of Virology, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo 13083-887, Brazil; (S.M.F.M.); (L.L.L.); (R.G.d.L.); (S.C.B.C.)
| | - Lucas Lopes Leon
- Laboratory of Virology, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo 13083-887, Brazil; (S.M.F.M.); (L.L.L.); (R.G.d.L.); (S.C.B.C.)
| | - Rodrigo Gonçalves de Lima
- Laboratory of Virology, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo 13083-887, Brazil; (S.M.F.M.); (L.L.L.); (R.G.d.L.); (S.C.B.C.)
| | - Anna Cristina Gervásio de Brito Lutaif
- Integrated Nephrology Center Unit, Pediatric Nephrology, Department of Pediatrics, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo 13083-887, Brazil; (A.C.G.d.B.L.); (L.C.P.); (L.M.P.P.); (V.M.S.B.)
| | - Liliane Cury Prates
- Integrated Nephrology Center Unit, Pediatric Nephrology, Department of Pediatrics, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo 13083-887, Brazil; (A.C.G.d.B.L.); (L.C.P.); (L.M.P.P.); (V.M.S.B.)
| | - Lilian Monteiro Pereira Palma
- Integrated Nephrology Center Unit, Pediatric Nephrology, Department of Pediatrics, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo 13083-887, Brazil; (A.C.G.d.B.L.); (L.C.P.); (L.M.P.P.); (V.M.S.B.)
| | - Sandra Cecília Botelho Costa
- Laboratory of Virology, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo 13083-887, Brazil; (S.M.F.M.); (L.L.L.); (R.G.d.L.); (S.C.B.C.)
| | - Vera Maria Santoro Belangero
- Integrated Nephrology Center Unit, Pediatric Nephrology, Department of Pediatrics, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo 13083-887, Brazil; (A.C.G.d.B.L.); (L.C.P.); (L.M.P.P.); (V.M.S.B.)
| | - Sandra Helena Alves Bonon
- Laboratory of Virology, School of Medical Sciences, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo 13083-887, Brazil; (S.M.F.M.); (L.L.L.); (R.G.d.L.); (S.C.B.C.)
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Kamminga S, Sidorov IA, Tadesse M, van der Meijden E, de Brouwer C, Zaaijer HL, Feltkamp MC, Gorbalenya AE. Translating genomic exploration of the family Polyomaviridae into confident human polyomavirus detection. iScience 2022; 25:103613. [PMID: 35036862 PMCID: PMC8749223 DOI: 10.1016/j.isci.2021.103613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/27/2021] [Accepted: 12/09/2021] [Indexed: 12/26/2022] Open
Abstract
The Polyomaviridae is a family of ubiquitous dsDNA viruses that establish persistent infection early in life. Screening for human polyomaviruses (HPyVs), which comprise 14 diverse species, relies upon species-specific qPCRs whose validity may be challenged by accelerating genomic exploration of the virosphere. Using this reasoning, we tested 64 published HPyV qPCR assays in silico against the 1781 PyV genome sequences that were divided in targets and nontargets, based on anticipated species specificity of each qPCR. We identified several cases of problematic qPCR performance that were confirmed in vitro and corrected through using degenerate oligos. Furthermore, our study ranked 8 out of 52 tested BKPyV qPCRs as remaining of consistently high quality in the wake of recent PyV discoveries and showed how sensitivity of most other qPCRs could be rescued by annealing temperature adjustment. This study establishes an efficient framework for ensuring confidence in available HPyV qPCRs in the genomic era.
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Affiliation(s)
- Sergio Kamminga
- Department of Medical Microbiology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
- Department of Blood-borne Infections, Sanquin Research, 1066 CX Amsterdam, the Netherlands
| | - Igor A. Sidorov
- Department of Medical Microbiology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Michaël Tadesse
- Department of Medical Microbiology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Els van der Meijden
- Department of Medical Microbiology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Caroline de Brouwer
- Department of Medical Microbiology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Hans L. Zaaijer
- Department of Blood-borne Infections, Sanquin Research, 1066 CX Amsterdam, the Netherlands
| | - Mariet C.W. Feltkamp
- Department of Medical Microbiology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
| | - Alexander E. Gorbalenya
- Department of Medical Microbiology, Leiden University Medical Center, 2333 ZA Leiden, the Netherlands
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, 119991 Moscow, Russia
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