ATP12A Proton Pump as an Emerging Therapeutic Target in Cystic Fibrosis and Other Respiratory Diseases

<i>ATP12A</i> encodes the catalytic subunit of the non-gastric proton pump, which is expressed in many epithelial tissues and mediates the secretion of protons in exchange for potassium ions. In the airways, ATP12A-dependent proton secretion contributes to complex mechanisms regulating t...

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Main Authors: Michał Dębczyński, Giulia Gorrieri, Damian Mojsak, Floriana Guida, Federico Zara, Paolo Scudieri
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Biomolecules
Subjects:
Online Access:https://www.mdpi.com/2218-273X/13/10/1455
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author Michał Dębczyński
Giulia Gorrieri
Damian Mojsak
Floriana Guida
Federico Zara
Paolo Scudieri
author_facet Michał Dębczyński
Giulia Gorrieri
Damian Mojsak
Floriana Guida
Federico Zara
Paolo Scudieri
author_sort Michał Dębczyński
collection DOAJ
description <i>ATP12A</i> encodes the catalytic subunit of the non-gastric proton pump, which is expressed in many epithelial tissues and mediates the secretion of protons in exchange for potassium ions. In the airways, ATP12A-dependent proton secretion contributes to complex mechanisms regulating the composition and properties of the fluid and mucus lining the respiratory epithelia, which are essential to maintain the airway host defense and the respiratory health. Increased expression and activity of ATP12A in combination with the loss of other balancing activities, such as the bicarbonate secretion mediated by CFTR, leads to excessive acidification of the airway surface liquid and mucus dysfunction, processes that play relevant roles in the pathogenesis of cystic fibrosis and other chronic inflammatory respiratory disorders. In this review, we summarize the findings dealing with ATP12A expression, function, and modulation in the airways, which led to the consideration of ATP12A as a potential therapeutic target for the treatment of cystic fibrosis and other airway diseases; we also highlight the current advances and gaps regarding the development of therapeutic strategies aimed at ATP12A inhibition.
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spelling doaj.art-e4fcc17ca85043fe808d9e56609ff5492023-11-19T15:49:29ZengMDPI AGBiomolecules2218-273X2023-09-011310145510.3390/biom13101455ATP12A Proton Pump as an Emerging Therapeutic Target in Cystic Fibrosis and Other Respiratory DiseasesMichał Dębczyński0Giulia Gorrieri1Damian Mojsak2Floriana Guida3Federico Zara4Paolo Scudieri52nd Department of Lung Diseases and Tuberculosis, Medical University of Bialystok, 15-540 Bialystok, PolandDepartment of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, 16132 Genoa, Italy2nd Department of Lung Diseases and Tuberculosis, Medical University of Bialystok, 15-540 Bialystok, PolandDepartment of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, 16132 Genoa, ItalyDepartment of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, 16132 Genoa, ItalyDepartment of Neurosciences, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DiNOGMI), University of Genoa, 16132 Genoa, Italy<i>ATP12A</i> encodes the catalytic subunit of the non-gastric proton pump, which is expressed in many epithelial tissues and mediates the secretion of protons in exchange for potassium ions. In the airways, ATP12A-dependent proton secretion contributes to complex mechanisms regulating the composition and properties of the fluid and mucus lining the respiratory epithelia, which are essential to maintain the airway host defense and the respiratory health. Increased expression and activity of ATP12A in combination with the loss of other balancing activities, such as the bicarbonate secretion mediated by CFTR, leads to excessive acidification of the airway surface liquid and mucus dysfunction, processes that play relevant roles in the pathogenesis of cystic fibrosis and other chronic inflammatory respiratory disorders. In this review, we summarize the findings dealing with ATP12A expression, function, and modulation in the airways, which led to the consideration of ATP12A as a potential therapeutic target for the treatment of cystic fibrosis and other airway diseases; we also highlight the current advances and gaps regarding the development of therapeutic strategies aimed at ATP12A inhibition.https://www.mdpi.com/2218-273X/13/10/1455ATP12Amodifier genesairway acidificationcystic fibrosisASLproton transport
spellingShingle Michał Dębczyński
Giulia Gorrieri
Damian Mojsak
Floriana Guida
Federico Zara
Paolo Scudieri
ATP12A Proton Pump as an Emerging Therapeutic Target in Cystic Fibrosis and Other Respiratory Diseases
Biomolecules
ATP12A
modifier genes
airway acidification
cystic fibrosis
ASL
proton transport
title ATP12A Proton Pump as an Emerging Therapeutic Target in Cystic Fibrosis and Other Respiratory Diseases
title_full ATP12A Proton Pump as an Emerging Therapeutic Target in Cystic Fibrosis and Other Respiratory Diseases
title_fullStr ATP12A Proton Pump as an Emerging Therapeutic Target in Cystic Fibrosis and Other Respiratory Diseases
title_full_unstemmed ATP12A Proton Pump as an Emerging Therapeutic Target in Cystic Fibrosis and Other Respiratory Diseases
title_short ATP12A Proton Pump as an Emerging Therapeutic Target in Cystic Fibrosis and Other Respiratory Diseases
title_sort atp12a proton pump as an emerging therapeutic target in cystic fibrosis and other respiratory diseases
topic ATP12A
modifier genes
airway acidification
cystic fibrosis
ASL
proton transport
url https://www.mdpi.com/2218-273X/13/10/1455
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