The role of the P2X₇ receptor in infectious diseases.

ATP is an extracellular signal for the immune system, particularly during an inflammatory response. It is sensed by the P2X₇ receptor, the expression of which is upregulated by pro-inflammatory cytokines. Activation of the P2X₇ receptor opens a cation-specific channel that alters the ionic environme...

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Main Authors: Catherine M Miller, Nicola R Boulter, Stephen J Fuller, Alana M Zakrzewski, Michael P Lees, Bernadette M Saunders, James S Wiley, Nicholas C Smith
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2011-11-01
Series:PLoS Pathogens
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22102807/?tool=EBI
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author Catherine M Miller
Nicola R Boulter
Stephen J Fuller
Alana M Zakrzewski
Michael P Lees
Bernadette M Saunders
James S Wiley
Nicholas C Smith
author_facet Catherine M Miller
Nicola R Boulter
Stephen J Fuller
Alana M Zakrzewski
Michael P Lees
Bernadette M Saunders
James S Wiley
Nicholas C Smith
author_sort Catherine M Miller
collection DOAJ
description ATP is an extracellular signal for the immune system, particularly during an inflammatory response. It is sensed by the P2X₇ receptor, the expression of which is upregulated by pro-inflammatory cytokines. Activation of the P2X₇ receptor opens a cation-specific channel that alters the ionic environment of the cell, activating several pathways, including (i) the inflammasome, leading to production of IL-1β and IL-18; (ii) the stress-activated protein kinase pathway, resulting in apoptosis; (iii) the mitogen-activated protein kinase pathway, leading to generation of reactive oxygen and nitrogen intermediates; and (iv) phospholipase D, stimulating phagosome-lysosome fusion. The P2X₇ receptor can initiate host mechanisms to remove pathogens, most particularly those that parasitise macrophages. At the same time, the P2X₇ receptor may be subverted by pathogens to modulate host responses. Moreover, recent genetic studies have demonstrated significant associations between susceptibility or resistance to parasites and bacteria, and loss-of-function or gain-of-function polymorphisms in the P2X₇ receptor, underscoring its importance in infectious disease.
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spelling doaj.art-eaae2f5f8dfd4171bed244a273cb96bf2022-12-21T19:27:12ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742011-11-01711e100221210.1371/journal.ppat.1002212The role of the P2X₇ receptor in infectious diseases.Catherine M MillerNicola R BoulterStephen J FullerAlana M ZakrzewskiMichael P LeesBernadette M SaundersJames S WileyNicholas C SmithATP is an extracellular signal for the immune system, particularly during an inflammatory response. It is sensed by the P2X₇ receptor, the expression of which is upregulated by pro-inflammatory cytokines. Activation of the P2X₇ receptor opens a cation-specific channel that alters the ionic environment of the cell, activating several pathways, including (i) the inflammasome, leading to production of IL-1β and IL-18; (ii) the stress-activated protein kinase pathway, resulting in apoptosis; (iii) the mitogen-activated protein kinase pathway, leading to generation of reactive oxygen and nitrogen intermediates; and (iv) phospholipase D, stimulating phagosome-lysosome fusion. The P2X₇ receptor can initiate host mechanisms to remove pathogens, most particularly those that parasitise macrophages. At the same time, the P2X₇ receptor may be subverted by pathogens to modulate host responses. Moreover, recent genetic studies have demonstrated significant associations between susceptibility or resistance to parasites and bacteria, and loss-of-function or gain-of-function polymorphisms in the P2X₇ receptor, underscoring its importance in infectious disease.https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22102807/?tool=EBI
spellingShingle Catherine M Miller
Nicola R Boulter
Stephen J Fuller
Alana M Zakrzewski
Michael P Lees
Bernadette M Saunders
James S Wiley
Nicholas C Smith
The role of the P2X₇ receptor in infectious diseases.
PLoS Pathogens
title The role of the P2X₇ receptor in infectious diseases.
title_full The role of the P2X₇ receptor in infectious diseases.
title_fullStr The role of the P2X₇ receptor in infectious diseases.
title_full_unstemmed The role of the P2X₇ receptor in infectious diseases.
title_short The role of the P2X₇ receptor in infectious diseases.
title_sort role of the p2x₇ receptor in infectious diseases
url https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22102807/?tool=EBI
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