| Autor: |
Hajir A. Al Saihati, Hosni A. M. Hussein, Ali A. Thabet, Ahmed A. Wardany, Sabry Y. Mahmoud, Eman S. Farrag, Taha I. A. Mohamed, Samah M. Fathy, Mohamed E. Elnosary, Ali Sobhy, Abdelazeem E. Ahmed, Ahmed M. El-Adly, Fareed S. El-Shenawy, Asmaa A. Elsadek, Amal Rayan, Zeinab Albadry M. Zahran, Omnia El-Badawy, Mohamed G. M. El-Naggar, Magdy M. Afifi, Asmaa M. Zahran |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
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| Zdroj: |
Microorganisms, Vol 11, Iss 11, p 2737 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2076-2607 |
| DOI: |
10.3390/microorganisms11112737 |
| Popis: |
The immune response implicated in Coronavirus disease 2019 (COVID-19) pathogenesis remains to be fully understood. The present study aimed to clarify the alterations in CD4+ and CD8+ memory T cells’ compartments in SARS-CoV-2-infected patients, with an emphasis on various comorbidities affecting COVID-19 patients. Peripheral blood samples were collected from 35 COVID-19 patients, 16 recovered individuals, and 25 healthy controls, and analyzed using flow cytometry. Significant alterations were detected in the percentage of CD8+ T cells and effector memory-expressing CD45RA CD8+ T cells (TEMRA) in COVID-19 patients compared to healthy controls. Interestingly, altered percentages of CD4+ T cells, CD8+ T cells, T effector (TEff), T naïve cells (TNs), T central memory (TCM), T effector memory (TEM), T stem cell memory (TSCM), and TEMRA T cells were significantly associated with the disease severity. Male patients had more CD8+ TSCMs and CD4+ TNs cells, while female patients had a significantly higher percentage of effector CD8+CD45RA+ T cells. Moreover, altered percentages of CD8+ TNs and memory CD8+CD45RO+ T cells were detected in diabetic and non-diabetic COVID-19 patients, respectively. In summary, this study identified alterations in memory T cells among COVID-19 patients, revealing a sex bias in the percentage of memory T cells. Moreover, COVID-19 severity and comorbidities have been linked to specific subsets of T memory cells which could be used as therapeutic, diagnostic, and protective targets for severe COVID-19. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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