Cutting Edge: Synapse Propensity of Human Memory CD8 T Cells Confers Competitive Advantage over Naive Counterparts
Overview
Authors
Affiliations
Memory T cells are endowed with multiple functional features that enable them to be more protective than naive T cells against infectious threats. It is not known if memory cells have a higher synapse propensity (SP; i.e., increased probability to form immature immunological synapses that then provide an entry into different modes of durable interaction with APCs). In this study, we show that only human memory CD8 T cells have remarkably high SP compared with naive counterparts. Such a dichotomy between naive and memory cells is not observed within the human CD4 or murine CD8 T cell population. Higher SP in human memory CD8 T cells allows them to outcompete and prevent naive CD8 T cells from getting recruited to the response. This observation has implications for original antigenic sin and aging of the immune system in humans.
Impact of antigenic evolution and original antigenic sin on SARS-CoV-2 immunity.
Aguilar-Bretones M, Fouchier R, Koopmans M, van Nierop G J Clin Invest. 2023; 133(1).
PMID: 36594464 PMC: 9797340. DOI: 10.1172/JCI162192.
The immune synapses reveal aberrant functions of CD8 T cells during chronic HIV infection.
Anikeeva N, Steblyanko M, Kuri-Cervantes L, Buggert M, Betts M, Sykulev Y Nat Commun. 2022; 13(1):6436.
PMID: 36307445 PMC: 9616955. DOI: 10.1038/s41467-022-34157-0.
Possibilities of using T-cell biophysical biomarkers of ageing.
Gonzalez-Bermudez B, Abarca-Ortega A, Gonzalez-Sanchez M, De la Fuente M, Plaza G Expert Rev Mol Med. 2022; 24:e35.
PMID: 36111609 PMC: 9884748. DOI: 10.1017/erm.2022.29.
Immunology of Aging: the Birth of Inflammaging.
Fulop T, Larbi A, Pawelec G, Khalil A, Cohen A, Hirokawa K Clin Rev Allergy Immunol. 2021; 64(2):109-122.
PMID: 34536213 PMC: 8449217. DOI: 10.1007/s12016-021-08899-6.
Eidell K, Lovy A, Sylvain N, Scangarello F, Muendlein H, Ophir M J Cell Sci. 2021; 134(16).
PMID: 34279667 PMC: 8435290. DOI: 10.1242/jcs.258602.