T cell markers recount the course of immunosenescence in healthy individuals and chronic kidney disease
Aging results in substantial changes in almost all cellular subpopulations within the immune system, including functional and phenotypic alterations.
T lymphocytes, as the main representative population of cellular immunity, have been extensively studied in terms of modifications and adjustments during aging. Phenotypic alterations are attributed to three main mechanisms; a reduction of naïve T cell population with a shift to more differentiated forms, a subsequent oligoclonal expansion of naïve T cells characterized by repertoire restriction, and replicative insufficiency after repetitive activation.
These changes and the subsequent phenotypic disorders are comprised in the term “immunosenescence”. Similar changes seem to occur in chronic kidney disease, with T cells of young patients resembling those of healthy older individuals. A broad range of surface markers can be utilized to identify immunosenescent T cells. In this review, we will discuss the most important senescence markers and their potential connection with impaired renal function.
Journal of Clinical Immunology and infectious diseases
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