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Abstract
Recipients of solid organ and hematopoietic stem cell transplantation undergo substantial immune suppression, placing them at risk for opportunistic viral infection. Few randomized controlled trials have been dedicated to the treatment of viral infections in children, and current practices are extrapolated from data generated from adult patients. Here we discuss the prevention and treatment of viral infections using available antiviral drugs, as well as novel agents that may provide benefit to pediatric patients in the future.
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Affiliation(s)
- William R. Otto
- Division of Infectious Diseases, Department of Pediatrics, The Children’s Hospital of Philadelphia, 3401 Civic Center Boulevard, Philadelphia, PA 19104-4399, USA
| | - Abby Green
- Division of Infectious Diseases, Department of Pediatrics, Washington University, 425 S. Euclid Avenue, McDonnell Pediatric Research Building, #5105, St Louis, MO 63106, USA.
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Seldeslachts L, Jacobs C, Tielemans B, Vanhoffelen E, Van der Sloten L, Humblet-Baron S, Naesens L, Lagrou K, Verbeken E, Wauters J, Vande Velde G. Overcome Double Trouble: Baloxavir Marboxil Suppresses Influenza Thereby Mitigating Secondary Invasive Pulmonary Aspergillosis. J Fungi (Basel) 2021; 8:1. [PMID: 35049941 PMCID: PMC8777735 DOI: 10.3390/jof8010001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 12/16/2022] Open
Abstract
Influenza-associated pulmonary aspergillosis (IAPA) is a global recognized superinfection in critically ill influenza patients. Baloxavir marboxil, a cap-dependent endonuclease inhibitor, is a newly approved anti-influenza therapeutic. Although the benefits as a treatment for influenza are clear, its efficacy against an influenza-A. fumigatus co-infection has yet to be determined. We investigated the therapeutic effect of baloxavir marboxil in a murine model for IAPA. Immunocompetent mice received intranasal instillation of influenza A followed by orotracheal inoculation with Aspergillus fumigatus 4 days later. Administration of baloxavir marboxil or sham was started at day 0, day 2 or day 4. Mice were monitored daily for overall health status, lung pathology with micro-computed tomography (µCT) and fungal burden with bioluminescence imaging (BLI). In vivo imaging was supplemented with virological, mycological and biochemical endpoint investigations. We observed an improved body weight, survival and viral clearance in baloxavir marboxil treated mice. µCT showed less pulmonary lesions and bronchial dilation after influenza and after Aspergillus co-infection in a treatment-dependent pattern. Furthermore, baloxavir marboxil was associated with effective inhibition of fungal invasion. Hence, our results provide evidence that baloxavir marboxil mitigates severe influenza thereby decreasing the susceptibility to a lethal invasive Aspergillus superinfection.
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Affiliation(s)
- Laura Seldeslachts
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, 3000 Leuven, Belgium; (L.S.); (B.T.); (E.V.)
| | - Cato Jacobs
- Laboratory for Clinical Infectious and Inflammatory Disorders, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium; (C.J.); (L.V.d.S.); (J.W.)
| | - Birger Tielemans
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, 3000 Leuven, Belgium; (L.S.); (B.T.); (E.V.)
| | - Eliane Vanhoffelen
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, 3000 Leuven, Belgium; (L.S.); (B.T.); (E.V.)
| | - Lauren Van der Sloten
- Laboratory for Clinical Infectious and Inflammatory Disorders, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium; (C.J.); (L.V.d.S.); (J.W.)
| | - Stephanie Humblet-Baron
- Laboratory of Adaptive Immunity, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium;
| | - Lieve Naesens
- Laboratory of Virology and Chemotherapy, Rega Institute, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium;
| | - Katrien Lagrou
- Laboratory of Clinical Bacteriology and Mycology, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium;
| | - Erik Verbeken
- Department of Imaging and Pathology, KU Leuven, 3000 Leuven, Belgium;
| | - Joost Wauters
- Laboratory for Clinical Infectious and Inflammatory Disorders, Department of Microbiology, Immunology and Transplantation, KU Leuven, 3000 Leuven, Belgium; (C.J.); (L.V.d.S.); (J.W.)
| | - Greetje Vande Velde
- Biomedical MRI Unit/MoSAIC, Department of Imaging and Pathology, KU Leuven, 3000 Leuven, Belgium; (L.S.); (B.T.); (E.V.)
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Jaiswal SR, Malhotra P, Mitra DK, Chakrabarti S. Focusing On A Unique Innate Memory Cell Population Of Natural Killer Cells In The Fight Against COVID-19: Harnessing The Ubiquity Of Cytomegalovirus Exposure. Mediterr J Hematol Infect Dis 2020; 12:e2020047. [PMID: 32670525 PMCID: PMC7340217 DOI: 10.4084/mjhid.2020.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 06/07/2020] [Indexed: 12/17/2022] Open
Affiliation(s)
- Sarita Rani Jaiswal
- Cellular Therapy and Immunology, Manashi Chakrabarti Foundation
- Department of Blood and Marrow Transplantation Dharamshila Narayana Super-speciality Hospital, New Delhi, India
| | - Pankaj Malhotra
- Clinical Hematology, Department of Internal Medicine, Post-Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Dipendra K Mitra
- Department of Immunology, All India Institute of Medical Sciences, New Delhi, India
| | - Suparno Chakrabarti
- Cellular Therapy and Immunology, Manashi Chakrabarti Foundation
- Department of Blood and Marrow Transplantation Dharamshila Narayana Super-speciality Hospital, New Delhi, India
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