Increased CD95 (Fas) and PD-1 expression in peripheral blood T lymphocytes in COVID-19 patients.
Br J Haematol
; 191(2): 207-211, 2020 10.
Article
in English
| MEDLINE | ID: covidwho-652703
ABSTRACT
A low count of CD4+ and CD8+ lymphocytes is a hallmark laboratory finding in the coronavirus disease 2019 (COVID-19). Using flow cytometry, we observed significantly higher CD95 (Fas) and PD-1 expression on both CD4+ T and CD8+ T cells in 42 COVID-19 patients when compared to controls. Higher CD95 expression in CD4+ cells correlated with lower CD4+ counts. A higher expression of CD95 in CD4+ and CD8+ lymphocytes correlated with a lower percentage of naive events. Our results might suggest a shift to antigen-activated T cells, expressing molecules increasing their propensity to apoptosis and exhaustion during COVID-19 infection.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
CD4-Positive T-Lymphocytes
/
Lymphocyte Subsets
/
CD8-Positive T-Lymphocytes
/
Fas Receptor
/
Programmed Cell Death 1 Receptor
/
COVID-19
/
Lymphopenia
Type of study:
Prognostic study
Topics:
Long Covid
Limits:
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Language:
English
Journal:
Br J Haematol
Year:
2020
Document Type:
Article
Affiliation country:
Bjh.17034
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