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Front Immunol. 2018 Jan 10;8:1953. doi: 10.3389/fimmu.2017.01953. eCollection 2017.

The Contribution of Cytomegalovirus Infection to Immune Senescence Is Set by the Infectious Dose.

Frontiers in immunology

Anke Redeker, Ester B M Remmerswaal, Esmé T I van der Gracht, Suzanne P M Welten, Thomas Höllt, Frits Koning, Luka Cicin-Sain, Janko Nikolich-Žugich, Ineke J M Ten Berge, René A W van Lier, Vincent van Unen, Ramon Arens

Affiliations

  1. Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, Netherlands.
  2. Department of Experimental Immunology, Academic Medical Center, Amsterdam, Netherlands.
  3. Renal Transplant Unit, Division of Internal Medicine, Academic Medical Center, Amsterdam, Netherlands.
  4. Delft University of Technology, Delft, Netherlands.
  5. Helmholtz Centre for Infection Research, Braunschweig, Germany.
  6. Department of Immunobiology, University of Arizona College of Medicine, Tucson, AZ, United States.
  7. Sanquin Blood Supply Foundation and Landsteiner Laboratory, Amsterdam, Netherlands.

PMID: 29367854 PMCID: PMC5768196 DOI: 10.3389/fimmu.2017.01953

Abstract

The relationship between human cytomegalovirus (HCMV) infections and accelerated immune senescence is controversial. Whereas some studies reported a CMV-associated impaired capacity to control heterologous infections at old age, other studies could not confirm this. We hypothesized that these discrepancies might relate to the variability in the infectious dose of CMV occurring in real life. Here, we investigated the influence of persistent CMV infection on immune perturbations and specifically addressed the role of the infectious dose on the contribution of CMV to accelerated immune senescence. We show in experimental mouse models that the degree of mouse CMV (MCMV)-specific memory CD8

Keywords: CMV; immunesenesence; memory CD8 T cells; memory inflation; mouse models

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