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Giménez E, Monzó C, Albert E, Fuentes-Trillo A, Seda E, Piñana JL, Hernández Boluda JC, Solano C, Chaves J, Navarro D. Diversity and dynamic changes of anelloviruses in plasma following allogeneic hematopoietic stem cell transplantation. J Med Virol 2020; 93:5167-5172. [PMID: 33174620 DOI: 10.1002/jmv.26661] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/02/2020] [Accepted: 11/04/2020] [Indexed: 01/20/2023]
Abstract
Monitoring of alphatorquevirus (torque teno virus [TTV]) DNA in plasma may prove to be useful to assess the net state of immune competence following allogeneic hematopoietic stem cell transplantation (allo-HSCT). There are scarce data published on the prevalence of beta (torque teno mini virus [TTMV]) and gammatorqueviruses (torque teno midi virus [TTMDV]) and, in particular, on the dynamics of anelloviruses in allo-HSCT patients. Twenty-five allo-HSCT recipients with available plasma specimens obtained before conditioning and after engraftment were included. Degenerated primers targeting a highly conserved genomic sequence across all anelloviruses were designed for genomic amplification and high-throughput sequencing. Co-detection of TTV, TTMV, and TTMDV both in pre-transplant and post-engraftment plasma specimens was documented in more than two-thirds of patients. The use of quantitative real-time polymerase chain reaction (PCR) assays targeting TTMV and TTMDV in addition to TTV may add value to TTV-specific PCR assays in the inference of the net state of immunosuppresion or immune competence in this clinical setting.
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Affiliation(s)
- Estela Giménez
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research Institute, Valencia, Spain
| | - Carolina Monzó
- Genomics and Genetic Diagnosis Unit, INCLIVA Research Institute, Valencia, Spain
| | - Eliseo Albert
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research Institute, Valencia, Spain
| | | | - Enrique Seda
- Genomics and Genetic Diagnosis Unit, INCLIVA Research Institute, Valencia, Spain
| | - José Luis Piñana
- Hematology Service, Hospital Clínico Universitario, INCLIVA Research Institute, Valencia, Spain
| | | | - Carlos Solano
- Hematology Service, Hospital Clínico Universitario, INCLIVA Research Institute, Valencia, Spain.,Department of Medicine, School of Medicine, University of Valencia, Valencia, Spain
| | - Javier Chaves
- Genomics and Genetic Diagnosis Unit, INCLIVA Research Institute, Valencia, Spain
| | - David Navarro
- Microbiology Service, Hospital Clínico Universitario, INCLIVA Research Institute, Valencia, Spain.,Department of Microbiology, School of Medicine, University of Valencia, Valencia, Spain
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