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Role of M3 muscarinic receptor in regulation of immunity to infectious pathogens

During the last decade, cholinergic signaling via acetylcholine and its receptors has emerged as an important regulator of immunity. Acetylcholine binds to and signals through two types of receptors; nicotinic and muscarinic receptors. Studies have shown that signaling through nicotinic receptors, p...

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Main Author: Vira, Alykhan
Other Authors: Brombacher, Frank
Format: Thesis
Language:English
Published: Department of Clinical Laboratory Sciences 2015
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access_status_str Open Access
author Vira, Alykhan
author2 Brombacher, Frank
author_browse Brombacher, Frank
Vira, Alykhan
author_facet Brombacher, Frank
Vira, Alykhan
author_sort Vira, Alykhan
collection Thesis
description During the last decade, cholinergic signaling via acetylcholine and its receptors has emerged as an important regulator of immunity. Acetylcholine binds to and signals through two types of receptors; nicotinic and muscarinic receptors. Studies have shown that signaling through nicotinic receptors, particularly the α7 subtype on macrophages has potent anti-inflammatory effects. However, the role for muscarinic receptor has not yet been conclusively characterized. In this study, we demonstrate that M3 muscarinic receptor subtype is required for optimal protective immunity to two pathogens; the nematode Nippostrongylus brasiliensis and the bacterium Salmonella enterica sp. Tyhpimurium. M3R deficient mice (M3R-/-) were susceptible to infection with N.brasiliensis with decreased production of the protective cytokine IL-13. Furthermore, stimulation of lymphocytes with muscarinic agonists enhanced TH2 cytokine production in an M3R dependent manner.
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institution University of Cape Town (South Africa)
language eng
last_indexed 2026-06-10T12:33:59.204Z
license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository
publishDate 2015
publishDateRange 2015
publishDateSort 2015
publisher Department of Clinical Laboratory Sciences
publisherStr Department of Clinical Laboratory Sciences
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source_str UCTD — University of Cape Town Open Access Repository
spelling oai:open.uct.ac.za:11427/13966 Role of M3 muscarinic receptor in regulation of immunity to infectious pathogens Vira, Alykhan Brombacher, Frank Horsnell, William Immunology During the last decade, cholinergic signaling via acetylcholine and its receptors has emerged as an important regulator of immunity. Acetylcholine binds to and signals through two types of receptors; nicotinic and muscarinic receptors. Studies have shown that signaling through nicotinic receptors, particularly the α7 subtype on macrophages has potent anti-inflammatory effects. However, the role for muscarinic receptor has not yet been conclusively characterized. In this study, we demonstrate that M3 muscarinic receptor subtype is required for optimal protective immunity to two pathogens; the nematode Nippostrongylus brasiliensis and the bacterium Salmonella enterica sp. Tyhpimurium. M3R deficient mice (M3R-/-) were susceptible to infection with N.brasiliensis with decreased production of the protective cytokine IL-13. Furthermore, stimulation of lymphocytes with muscarinic agonists enhanced TH2 cytokine production in an M3R dependent manner. 2015-09-15T10:22:58Z 2015-09-15T10:22:58Z 2013 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/13966 eng application/pdf Department of Clinical Laboratory Sciences Faculty of Health Sciences University of Cape Town
spellingShingle Immunology
Vira, Alykhan
Role of M3 muscarinic receptor in regulation of immunity to infectious pathogens
thesis_degree_str Doctoral
title Role of M3 muscarinic receptor in regulation of immunity to infectious pathogens
title_full Role of M3 muscarinic receptor in regulation of immunity to infectious pathogens
title_fullStr Role of M3 muscarinic receptor in regulation of immunity to infectious pathogens
title_full_unstemmed Role of M3 muscarinic receptor in regulation of immunity to infectious pathogens
title_short Role of M3 muscarinic receptor in regulation of immunity to infectious pathogens
title_sort role of m3 muscarinic receptor in regulation of immunity to infectious pathogens
topic Immunology
url http://hdl.handle.net/11427/13966
work_keys_str_mv AT viraalykhan roleofm3muscarinicreceptorinregulationofimmunitytoinfectiouspathogens