Author : Wilson Savino
Publisher : Frontiers Media SA
ISBN 13 : 2889630269
Total Pages : 110 pages
Book Rating : 4.8/5 (896 download)
Book Synopsis Hormones, Neurotransmitters, and T-Cell Development in Health and Disease by : Wilson Savino
Download or read book Hormones, Neurotransmitters, and T-Cell Development in Health and Disease written by Wilson Savino and published by Frontiers Media SA. This book was released on 2019-11-01 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thymus physiology and T-cell homeostasis are controlled by hormones, neurotransmitters, cytokines and other factors that modulate stromal-cell interactions, influence thymocyte development and selection processes, survival and migration, between others. In the context of this Research Topic on “Hormones, Neurotransmitters, and T cell development in Health and Disease”, authors discuss the control of thymus physiology by glucocorticoids (GC), growth hormone (GH) and sex hormones, norepinephrine (NE) and other molecules that seem impact upon thymocyte/microenvironmental interactions, like galectin-3 (Gal-3) ephrins (Eph), extracellular matrix proteins and integrins (like VLA-5). Moreover, some of them draw attention to about how diverse maturation steps and/or the interactions between stromal and thymocytes can be affected in pathological states like diabetes or infections. As shown schematically in the figure, this topic highlight the following notions: 1) GH shows counterregulatory effects against GC rather than influence directly T cell homeostasis; 2) Interactions between sex hormones and noradrenergic secretion may influence thymus homeostasis and involution; 3) Gal-3 are crucial to thymocyte-stromal cell interactions and influence thymic architecture. Moreover, Gal-3 seem to be involved in the regulation of steroidogenic pathway; 4) Ephrins are crucial to assembly the thymic connections between thymocytes and the epithelial network, but have a relative importance in supporting normal thymopoyesis; 5) Pathologic situations like diabetes, or infectious diseases caused by parasites or bacteria alters the normal development of T-lymphocytes and might influence tolerance process. DN: double-negative (CD4-CD8) thymocytes; DP: double-positive (CD4+CD8+) thymocytes; SP: simple-positive thymocytes; LT: T lymphocyte; FN: fibronectin; PVS: peri-vascular space; BM: bone marrow; DBT: diabetes; Eph: Ephrins.