A narrative review of tissue-resident memory T cells and their role in immune surveillance and COVID-19.
Eur Rev Med Pharmacol Sci
; 26(12): 4486-4496, 2022 06.
Article
in English
| MEDLINE | ID: covidwho-1924919
ABSTRACT
Most effector T cells will undergo programmed apoptosis after an immune response and some of them may become memory T cells. According to the distribution and functional status, the memory T cells can be divided into effector central memory T cells (TCM), effector memory T cells (TEM) and tissue-resident memory T cells (TRM) cells. TRM cells, including CD4+ TRM and CD8+ TRM cells, colonize various barrier surfaces and are no longer involved in lymphocyte recycling, closely monitored for local perturbations in homeostasis throughout the body as a critical component of the first defense line. When pathogenic microorganisms invade the body, TRM cells can quickly produce a defense response to initiate innate immunity and adaptive immunity by producing cytokines or killer molecules to resist viral and bacterial infections. In addition, TRM cells are also involved in cancer surveillance and play an essential role in maintaining cancer-immune equilibrium. The high frequency of TRM cells in tumor tissues often means favorable survival for patients. The latest research proves that TRM cells also play an important role in vaccine development and pathological features of COVID-19. This article will summarize the biological functions of TRM cells and aims at providing references for further research on their mechanism and for targeting the best treatment of clinical disease.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
COVID-19
/
Neoplasms
Type of study:
Prognostic study
/
Reviews
Topics:
Vaccines
Limits:
Humans
Language:
English
Journal:
Eur Rev Med Pharmacol Sci
Journal subject:
Pharmacology
/
Toxicology
Year:
2022
Document Type:
Article
Affiliation country:
Eurrev_202206_29088
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