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Título: | Hallmarks of T cell aging |
Autor: | Mittelbrunn, María CSIC ORCID CVN; Kroemer, Guido | Fecha de publicación: | 22-jun-2021 | Editor: | Nature Publishing Group | Citación: | Nature Immunology 22: 687- 698 (2021) | Resumen: | The aged adaptive immune system is characterized by progressive dysfunction as well as increased autoimmunity. This decline is responsible for elevated susceptibility to infection and cancer, as well as decreased vaccination efficacy. Recent evidence indicates that CD4 T cell–intrinsic alteratins contribute to chronic inflammation and are sufficient to accelerate an organism-wide aging phenotype, supporting the idea that T cell aging plays a major role in body-wide deterioration. In this Review, we propose ten molecular hallmarks to represent common denominators of T cell aging. These hallmarks are grouped into four primary hallmarks (thymic involution, mitochondrial dysfunction, genetic and epigenetic alterations, and loss of proteostasis) and four secondary hallmarks (reduction of the TCR repertoire, naive–memory imbalance, T cell senescence, and lack of effector plasticity), and together they explain the manifestation of the two integrative hallmarks (immunodeficiency and inflammaging). A major challenge now is weighing the relative impact of these hallmarks on T cell aging and understanding their interconnections, with the final goal of defining molecular targets for interventions in the aging process. | Versión del editor: | http://dx.doi.org/10.1038/s41590-021-00927-z | URI: | http://hdl.handle.net/10261/265661 | DOI: | 10.1038/s41590-021-00927-z | Identificadores: | doi: 10.1038/s41590-021-00927-z issn: 1529-2916 |
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MitterlbrunnM_HallmarksofTCellAging.pdf | 1,66 MB | Adobe PDF | Visualizar/Abrir |
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