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Esteve M, Albert E, Giménez E, Colomer E, Hernández-Boluda JC, Hernani R, Piñana JL, Solano C, Navarro D. Assessment of Cytomegalovirus DNA doubling time and virus-specific T-cell responses in the management of CMV infection in allogeneic hematopoietic stem cell transplant recipients undergoing Letermovir prophylaxis. Bone Marrow Transplant 2024:10.1038/s41409-024-02376-2. [PMID: 39033234 DOI: 10.1038/s41409-024-02376-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 07/15/2024] [Accepted: 07/16/2024] [Indexed: 07/23/2024]
Affiliation(s)
- Marina Esteve
- Microbiology Service, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain
| | - Eliseo Albert
- Microbiology Service, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain
| | - Estela Giménez
- Microbiology Service, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain
| | - Ester Colomer
- Microbiology Service, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain
| | - Juan Carlos Hernández-Boluda
- Hematology Service, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain
- Department of Medicine, School of Medicine, University of Valencia, Valencia, Spain
| | - Rafael Hernani
- Hematology Service, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain
| | - José Luis Piñana
- Hematology Service, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain
| | - Carlos Solano
- Hematology Service, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain
- Department of Medicine, School of Medicine, University of Valencia, Valencia, Spain
| | - David Navarro
- Microbiology Service, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain.
- Department of Microbiology School of Medicine, University of Valencia, Valencia, Spain.
- CIBER de Enfermedades Infecciosas, Instituto de Salud Carlos III, Madrid, Spain.
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Gerna G, Lilleri D, Fornara C, d'Angelo P, Baldanti F. Relationship of human cytomegalovirus-infected endothelial cells and circulating leukocytes in the pathogenesis of disseminated human cytomegalovirus infection: A narrative review. Rev Med Virol 2024; 34:e2496. [PMID: 38282408 DOI: 10.1002/rmv.2496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 10/12/2023] [Accepted: 11/26/2023] [Indexed: 01/30/2024]
Abstract
Among the leucocyte subpopulations circulating in peripheral blood of immune-compromised patients with disseminated Human cytomegalovirus (HCMV) infection, polymorphonuclear leuckocytes (PMNL) and M/M may carry infectious virus. While only in PMNL early HCMV replicative events do occur, monocytes are susceptible to complete virus replication when they enter human organs, where as macrophages become a site of active complete virus replication. In vivo leucocytes and endothelial cells interact continuously, as suggested by several in vitro experimental findings showing the bidirectional HCMV transmission from leucocytes to and from endothelial cells with the critical aid of adhesion molecules. Recently, the neutralising antibody response in sera from subjects with primary HCMV infection was reported to be much higher and earlier than in human embryonic lung fibroblasts (HELF) cells when measured in endothelial cells and epithelial cells, where virus entry is mediated mostly by the pentamer complex gH/gL/pUL128/pUL130/pUL131, whereas it was much lower and delayed when determined in HELF, where virus entry is mediated mostly by the trimer complex gH/gL/gO. Thus, these results suggested that products of UL128L were the molecules primary responsible for the differential neutralising antibody response. This conclusion was confirmed by a series of polyclonal and monoclonal antibodies directed to the components of pUL128L. Very recently, based on two sets of experiments including inhibition and immunoblotting assays, the pentamer complex/trimer complex ratio has been finally identified as the main factor of the neutralising antibody response. This ratio may change with the virus suspension producer and target cell system as well as number of cell culture passages.
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Affiliation(s)
- Giuseppe Gerna
- Centre for Inherited Cardiovascular Diseases, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Daniele Lilleri
- Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Chiara Fornara
- Laboratory Medicine Service, Istituti Clinici Scientifici Maugeri IRCCS, Pavia, Italy
| | - Piera d'Angelo
- Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Fausto Baldanti
- Microbiology and Virology, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
- Department of Clinical, Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy
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César T, Le MP, Klifa R, Castelle M, Fournier B, Lévy R, Chbihi M, Courteille V, Moshous D, Blanche S, Alligon M, Leruez-Ville M, Peytavin G, Frange P, Neven B. Letermovir for CMV Prophylaxis in Very High-Risk Pediatric Hematopoietic Stem Cell Transplantation Recipients for Inborn Errors of Immunity. J Clin Immunol 2023; 44:6. [PMID: 38117473 DOI: 10.1007/s10875-023-01617-1] [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: 08/14/2023] [Accepted: 10/06/2023] [Indexed: 12/21/2023]
Abstract
The burden of CMV infection and disease is important in pediatric hematopoietic stem cell transplantation (HSCT), notably in the subgroup of patients with inborn errors of immunity (IEIs). Letermovir (LMV) is now a standard of care for CMV prophylaxis in adult sero-positive (R+) recipients, but is not yet labeled for children. Published pediatric studies are still scarce. We report a monocentric real-life use of LMV in 36 HSCT pediatric recipients with IEIs considered at high-risk of CMV infection including 14 patients between 2 and 12 months of age. A homogenous dosage proportional to the body surface area was used. Pharmacokinetic (PK) was performed in 8 patients with a median of 6 years of age (range 0,6;15). The cumulative incidence of clinically significant CMV infections (CS-CMVi) and the overall survival of patients under LMV were compared to a very similar historical cohort under (val)aciclovir prophylaxis. LMV tolerance was good. As compared to the historical cohort, the incidence of CS-CMVi was significantly lower in LMV group (5 out of 36 transplants (13.9%) versus 28 of the 62 HSCT (45.2%)) (p = 0.002). Plasma LMV exposures did not significantly differ with those reported in adult patients. In this high-risk pediatric HSCT cohort transplanted for IEIs, CMV prophylaxis with LMV at a homogenous dosage was well tolerated and effective in preventing CS-CMVi compared with a historical cohort.
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Affiliation(s)
- Thibaut César
- Pediatric Hematology-Immunology and Rheumatology Department, Assistance Publique Hôpitaux de Paris (APHP), Necker University Hospital, Paris, France
| | - Minh P Le
- Pharmacology Department, APHP, Bichat Hospital, Paris, France
- INSERM UMR_S 1144, Paris, France
| | - Roman Klifa
- Pediatric Hematology-Immunology and Rheumatology Department, Assistance Publique Hôpitaux de Paris (APHP), Necker University Hospital, Paris, France
- Université Paris Cité, Paris, France
| | - Martin Castelle
- Pediatric Hematology-Immunology and Rheumatology Department, Assistance Publique Hôpitaux de Paris (APHP), Necker University Hospital, Paris, France
| | - Benjamin Fournier
- Pediatric Hematology-Immunology and Rheumatology Department, Assistance Publique Hôpitaux de Paris (APHP), Necker University Hospital, Paris, France
- Université Paris Cité, Paris, France
- Laboratory of Lymphocyte Activation and Susceptibility to EBV Infection, INSERM UMR1163, Institut Imagine, Paris, France
| | - Romain Lévy
- Pediatric Hematology-Immunology and Rheumatology Department, Assistance Publique Hôpitaux de Paris (APHP), Necker University Hospital, Paris, France
- Université Paris Cité, Paris, France
- Laboratory of Human Genetics of Infectious Diseases, Inserm UMR 1163, Imagine Institute, Paris, France
| | - Marwa Chbihi
- Pediatric Hematology-Immunology and Rheumatology Department, Assistance Publique Hôpitaux de Paris (APHP), Necker University Hospital, Paris, France
- Université Paris Cité, Paris, France
| | - Virginie Courteille
- French reference center for primary immune deficiencies (CEREDIH), Necker University Hospital, APHP, Paris, France
| | - Despina Moshous
- Pediatric Hematology-Immunology and Rheumatology Department, Assistance Publique Hôpitaux de Paris (APHP), Necker University Hospital, Paris, France
- Université Paris Cité, Paris, France
- French reference center for primary immune deficiencies (CEREDIH), Necker University Hospital, APHP, Paris, France
- Laboratory of Genome Dynamics in the Immune System, Imagine Institute, INSERM UMR 1163, Paris, France
| | - Stéphane Blanche
- Pediatric Hematology-Immunology and Rheumatology Department, Assistance Publique Hôpitaux de Paris (APHP), Necker University Hospital, Paris, France
- Université Paris Cité, Paris, France
| | - Mickaël Alligon
- French reference center for primary immune deficiencies (CEREDIH), Necker University Hospital, APHP, Paris, France
| | - Marianne Leruez-Ville
- Laboratory of Clinical Microbiology, APHP, Necker University Hospital, & Université Paris Cité, Paris, 7328 FETUS, URP, France
| | - Gilles Peytavin
- Pharmacology Department, APHP, Bichat Hospital, Paris, France
- IAME, INSERM UMR 1137, Paris, France
| | - Pierre Frange
- Laboratory of Clinical Microbiology, APHP, Necker University Hospital, & Université Paris Cité, Paris, 7328 FETUS, URP, France
| | - Bénédicte Neven
- Pediatric Hematology-Immunology and Rheumatology Department, Assistance Publique Hôpitaux de Paris (APHP), Necker University Hospital, Paris, France.
- Université Paris Cité, Paris, France.
- Laboratory of Immunogenetics of Pediatric Autoimmune Diseases, Imagine Institute, INSERM UMR- S_1163, Paris, France.
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