The Role of pHi in Intestinal Epithelial Proliferation–Transport Mechanisms, Regulatory Pathways, and Consequences

During the maturation of intestinal epithelial cells along the crypt/surface axis, a multitude of acid/base transporters are differentially expressed in their apical and basolateral membranes, enabling processes of electrolyte, macromolecule, nutrient, acid/base and fluid secretion, and absorption....

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Main Authors: Mahdi Amiri, Ursula E. Seidler, Katerina Nikolovska
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-01-01
Series:Frontiers in Cell and Developmental Biology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fcell.2021.618135/full
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author Mahdi Amiri
Ursula E. Seidler
Katerina Nikolovska
author_facet Mahdi Amiri
Ursula E. Seidler
Katerina Nikolovska
author_sort Mahdi Amiri
collection DOAJ
description During the maturation of intestinal epithelial cells along the crypt/surface axis, a multitude of acid/base transporters are differentially expressed in their apical and basolateral membranes, enabling processes of electrolyte, macromolecule, nutrient, acid/base and fluid secretion, and absorption. An intracellular pH (pHi)-gradient is generated along the epithelial crypt/surface axis, either as a consequence of the sum of the ion transport activities or as a distinctly regulated entity. While the role of pHi on proliferation, migration, and tumorigenesis has been explored in cancer cells for some time, emerging evidence suggests an important role of the pHi in the intestinal stem cells (ISCs) proliferative rate under physiological conditions. The present review highlights the current state of knowledge about the potential regulatory role of pHi on intestinal proliferation and differentiation.
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spelling doaj.art-36eae5500c5b4899b2efd5fbbae157a82022-12-21T22:12:12ZengFrontiers Media S.A.Frontiers in Cell and Developmental Biology2296-634X2021-01-01910.3389/fcell.2021.618135618135The Role of pHi in Intestinal Epithelial Proliferation–Transport Mechanisms, Regulatory Pathways, and ConsequencesMahdi AmiriUrsula E. SeidlerKaterina NikolovskaDuring the maturation of intestinal epithelial cells along the crypt/surface axis, a multitude of acid/base transporters are differentially expressed in their apical and basolateral membranes, enabling processes of electrolyte, macromolecule, nutrient, acid/base and fluid secretion, and absorption. An intracellular pH (pHi)-gradient is generated along the epithelial crypt/surface axis, either as a consequence of the sum of the ion transport activities or as a distinctly regulated entity. While the role of pHi on proliferation, migration, and tumorigenesis has been explored in cancer cells for some time, emerging evidence suggests an important role of the pHi in the intestinal stem cells (ISCs) proliferative rate under physiological conditions. The present review highlights the current state of knowledge about the potential regulatory role of pHi on intestinal proliferation and differentiation.https://www.frontiersin.org/articles/10.3389/fcell.2021.618135/fullintracellular pHepithelial ion transportproliferationsignaling pathwaysintestinal epithelial cells
spellingShingle Mahdi Amiri
Ursula E. Seidler
Katerina Nikolovska
The Role of pHi in Intestinal Epithelial Proliferation–Transport Mechanisms, Regulatory Pathways, and Consequences
Frontiers in Cell and Developmental Biology
intracellular pH
epithelial ion transport
proliferation
signaling pathways
intestinal epithelial cells
title The Role of pHi in Intestinal Epithelial Proliferation–Transport Mechanisms, Regulatory Pathways, and Consequences
title_full The Role of pHi in Intestinal Epithelial Proliferation–Transport Mechanisms, Regulatory Pathways, and Consequences
title_fullStr The Role of pHi in Intestinal Epithelial Proliferation–Transport Mechanisms, Regulatory Pathways, and Consequences
title_full_unstemmed The Role of pHi in Intestinal Epithelial Proliferation–Transport Mechanisms, Regulatory Pathways, and Consequences
title_short The Role of pHi in Intestinal Epithelial Proliferation–Transport Mechanisms, Regulatory Pathways, and Consequences
title_sort role of phi in intestinal epithelial proliferation transport mechanisms regulatory pathways and consequences
topic intracellular pH
epithelial ion transport
proliferation
signaling pathways
intestinal epithelial cells
url https://www.frontiersin.org/articles/10.3389/fcell.2021.618135/full
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