Contribution of P2X4 Receptors to CNS Function and Pathophysiology

The release and extracellular action of ATP are a widespread mechanism for cell-to-cell communication in living organisms through activation of P2X and P2Y receptors expressed at the cell surface of most tissues, including the nervous system. Among ionototropic receptors, P2X4 receptors have emerged...

Full description

Bibliographic Details
Main Authors: Alejandro Montilla, Gilda Paloma Mata, Carlos Matute, Maria Domercq
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:International Journal of Molecular Sciences
Subjects:
Online Access:https://www.mdpi.com/1422-0067/21/15/5562
_version_ 1797560411307900928
author Alejandro Montilla
Gilda Paloma Mata
Carlos Matute
Maria Domercq
author_facet Alejandro Montilla
Gilda Paloma Mata
Carlos Matute
Maria Domercq
author_sort Alejandro Montilla
collection DOAJ
description The release and extracellular action of ATP are a widespread mechanism for cell-to-cell communication in living organisms through activation of P2X and P2Y receptors expressed at the cell surface of most tissues, including the nervous system. Among ionototropic receptors, P2X4 receptors have emerged in the last decade as a potential target for CNS disorders such as epilepsy, ischemia, chronic pain, anxiety, multiple sclerosis and neurodegenerative diseases. However, the role of P2X4 receptor in each pathology ranges from beneficial to detrimental, although the mechanisms are still mostly unknown. P2X4 is expressed at low levels in CNS cells including neurons and glial cells. In normal conditions, P2X4 activation contributes to synaptic transmission and synaptic plasticity. Importantly, one of the genes present in the transcriptional program of myeloid cell activation is P2X4. Microglial P2X4 upregulation, the P2X4<sup>+</sup> state of microglia, seems to be common in most acute and chronic neurodegenerative diseases associated with inflammation. In this review, we summarize knowledge about the role of P2X4 receptors in the CNS physiology and discuss potential pitfalls and open questions about the therapeutic potential of blocking or potentiation of P2X4 for different pathologies.
first_indexed 2024-03-10T18:00:10Z
format Article
id doaj.art-8b9999742981478da3f25459be6471e9
institution Directory Open Access Journal
issn 1661-6596
1422-0067
language English
last_indexed 2024-03-10T18:00:10Z
publishDate 2020-08-01
publisher MDPI AG
record_format Article
series International Journal of Molecular Sciences
spelling doaj.art-8b9999742981478da3f25459be6471e92023-11-20T08:58:10ZengMDPI AGInternational Journal of Molecular Sciences1661-65961422-00672020-08-012115556210.3390/ijms21155562Contribution of P2X4 Receptors to CNS Function and PathophysiologyAlejandro Montilla0Gilda Paloma Mata1Carlos Matute2Maria Domercq3Department of Neuroscience, University of the Basque Country (UPV/EHU), Achucarro Basque Center for Neuroscience and Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), 48940 Leioa, SpainDepartment of Neuroscience, University of the Basque Country (UPV/EHU), Achucarro Basque Center for Neuroscience and Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), 48940 Leioa, SpainDepartment of Neuroscience, University of the Basque Country (UPV/EHU), Achucarro Basque Center for Neuroscience and Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), 48940 Leioa, SpainDepartment of Neuroscience, University of the Basque Country (UPV/EHU), Achucarro Basque Center for Neuroscience and Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), 48940 Leioa, SpainThe release and extracellular action of ATP are a widespread mechanism for cell-to-cell communication in living organisms through activation of P2X and P2Y receptors expressed at the cell surface of most tissues, including the nervous system. Among ionototropic receptors, P2X4 receptors have emerged in the last decade as a potential target for CNS disorders such as epilepsy, ischemia, chronic pain, anxiety, multiple sclerosis and neurodegenerative diseases. However, the role of P2X4 receptor in each pathology ranges from beneficial to detrimental, although the mechanisms are still mostly unknown. P2X4 is expressed at low levels in CNS cells including neurons and glial cells. In normal conditions, P2X4 activation contributes to synaptic transmission and synaptic plasticity. Importantly, one of the genes present in the transcriptional program of myeloid cell activation is P2X4. Microglial P2X4 upregulation, the P2X4<sup>+</sup> state of microglia, seems to be common in most acute and chronic neurodegenerative diseases associated with inflammation. In this review, we summarize knowledge about the role of P2X4 receptors in the CNS physiology and discuss potential pitfalls and open questions about the therapeutic potential of blocking or potentiation of P2X4 for different pathologies.https://www.mdpi.com/1422-0067/21/15/5562purinergic P2X4 receptormicroglianeuroninflammationCNS disease
spellingShingle Alejandro Montilla
Gilda Paloma Mata
Carlos Matute
Maria Domercq
Contribution of P2X4 Receptors to CNS Function and Pathophysiology
International Journal of Molecular Sciences
purinergic P2X4 receptor
microglia
neuron
inflammation
CNS disease
title Contribution of P2X4 Receptors to CNS Function and Pathophysiology
title_full Contribution of P2X4 Receptors to CNS Function and Pathophysiology
title_fullStr Contribution of P2X4 Receptors to CNS Function and Pathophysiology
title_full_unstemmed Contribution of P2X4 Receptors to CNS Function and Pathophysiology
title_short Contribution of P2X4 Receptors to CNS Function and Pathophysiology
title_sort contribution of p2x4 receptors to cns function and pathophysiology
topic purinergic P2X4 receptor
microglia
neuron
inflammation
CNS disease
url https://www.mdpi.com/1422-0067/21/15/5562
work_keys_str_mv AT alejandromontilla contributionofp2x4receptorstocnsfunctionandpathophysiology
AT gildapalomamata contributionofp2x4receptorstocnsfunctionandpathophysiology
AT carlosmatute contributionofp2x4receptorstocnsfunctionandpathophysiology
AT mariadomercq contributionofp2x4receptorstocnsfunctionandpathophysiology