Mechanisms of regulatory functions of free receptors of immunocompetent cells in ensuring immune homeostasis in different climatic and geographical conditions
- Authors: Samodova A.V.1, Dobrodeeva L.K.1
-
Affiliations:
- N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the RAS
- Issue: Vol 51, No 1 (2025)
- Pages: 84-96
- Section: Articles
- URL: https://journals.rcsi.science/0131-1646/article/view/286002
- DOI: https://doi.org/10.31857/S0131164625010081
- EDN: https://elibrary.ru/VMNLHH
- ID: 286002
Cite item
Abstract
The results of long-term research on studying the mechanisms of regulatory functions of free receptors of immunocompetent cells in ensuring immune homeostasis in different climatic and geographical conditions are presented. 1316 practically healthy at the time of examination people aged from 21 to 55 years, 1024 women and 292 men, residents of Arkhangelsk, Murmansk, Nenets Autonomous Okrug and Svalbard Archipelago were examined. On the basis of the obtained data the cellular-humoral concept is proposed: the shedding of receptor structures from the cell membrane (CD16, CD23, CD25, CD71, CD54, CD56, CD62L, CD80, CD95) is a physiological mechanism of restriction of the functions performed by the receptor, occurs simultaneously with the formation of the corresponding membrane forms, which provides adequate and timely levels of activation, differentiation and apoptosis of lymphocytes during the periods of functional activity of lymphocytes. Shedding creates an opportunity to restore cell potential to baseline for subsequent activity: an increase in the concentration of extracellular co-stimulatory molecules (sCD71, sCD25) is associated with a decrease in circulating lymphocytes with appropriate receptor structures on the membrane (CD71+ and CD25+). The extracellular pool of receptor structures participates in the transport and clearance of lymphocyte activation products with the formation of immune and non-immune circulating complexes, contributing to their clearance.
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About the authors
A. V. Samodova
N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the RAS
Author for correspondence.
Email: annapoletaeva2008@yandex.ru
Russian Federation, Arkhangelsk
L. K. Dobrodeeva
N. Laverov Federal Center for Integrated Arctic Research of the Ural Branch of the RAS
Email: annapoletaeva2008@yandex.ru
Russian Federation, Arkhangelsk
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