| Autor: |
Madeleine Zinser, Eleanor Barnes, Lian Ni Lee, Antonella Folgori, Claire Hutchings, Andrew J Highton, Paul Klenerman, Claire L. Gordon, Stefania Capone, Leo Swadling |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
SSRN Electronic Journal. |
| ISSN: |
1556-5068 |
| Popis: |
The induction and maintenance of T-cell memory is critical to the success of novel vaccines. A newlydescribed subset of memory CD8 T-cells defined by intermediate expression of the chemokine receptor CX3CR1, were shown to have self-renewal, proliferative and tissue-surveillance properties relevant to vaccine-induced memory. We tracked these cells in situations where memory is sustained at high levels – memory “inflation” induced by cytomegalovirus (CMV) and adenovirus-vectored vaccines. In mice, both CMV and vaccine-induced inflationary T-cells showed sustained high levels of CX3R1int cells exhibiting an effector-memory phenotype, characteristic of inflationary pools. In humans, CX3CR1int CD8 T-cells were strongly induced following administration of an adenovirus-vectored vaccine for HCV (ChAd3-NSmut) and during natural CMV infection, and were associated with a memory phenotype similar to that in mice. These data indicate that CX3CR1int memory cells form a substantial component of the memory pool in response to persistent viruses and vaccines in both mouse and man. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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