The effect of early life cytomegalovirus infection on the immune profile of children
Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.
| Veröffentlicht in: | Clinical immunology (Orlando, Fla.). - 1999. - 266(2024) vom: 26. Aug., Seite 110330 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , , , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2024
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| Zugriff auf das übergeordnete Werk: | Clinical immunology (Orlando, Fla.) |
| Schlagworte: | Journal Article CMV Human Human cytomegalovirus T cells Viral infection Tumor Necrosis Factor Receptor Superfamily, Member 7 CD28 Antigens CD57 Antigens Immunoglobulin G |
| Zusammenfassung: | Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved. Cytomegalovirus (CMV) infection has a life-long impact on the immune system, particularly on memory T cells. However, the effect of early life CMV infection on the phenotype and functionality of T cells in infants and especially longitudinal changes occurring during childhood have not been explored in detail. The phenotype and functionality of peripheral blood CD8+ and CD4+ T cells from children infected with CMV in early life (< 6 months of age) was analyzed using high-dimensional flow cytometry. Samples from CMV IgG-seropositive (CMV+) children were collected at 6 months and 6 years of age and compared to samples from CMV-seronegative (CMV-) children. Early life CMV infection caused multiple alterations within T cells. These include downregulation of CD28 expression and upregulation of CD57 expression within both CD27+ early and CD27- late effector memory CD8+ and CD4+ T-cells at 6 months of age. Of these changes, only alterations within the highly differentiated late effector memory compartment persisted at the age of 6 years. Early life CMV-infection has a distinct impact on developing CD8+ and CD4+ memory T cell compartments. It appears to induce both temporary as well as longer-lasting alterations, which may affect the functionality of the immune system throughout life |
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| Beschreibung: | Date Completed 16.08.2024 Date Revised 16.08.2024 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1521-7035 |
| DOI: | 10.1016/j.clim.2024.110330 |