Spatiotemporal pH Heterogeneity as a Promoter of Cancer Progression and Therapeutic Resistance

Dysregulation of pH in solid tumors is a hallmark of cancer. In recent years, the role of altered pH heterogeneity in space, between benign and aggressive tissues, between individual cancer cells, and between subcellular compartments, has been steadily elucidated. Changes in temporal pH-related proc...

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Main Authors: David E. Korenchan, Robert R. Flavell
Format: Article
Language:English
Published: MDPI AG 2019-07-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/11/7/1026
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author David E. Korenchan
Robert R. Flavell
author_facet David E. Korenchan
Robert R. Flavell
author_sort David E. Korenchan
collection DOAJ
description Dysregulation of pH in solid tumors is a hallmark of cancer. In recent years, the role of altered pH heterogeneity in space, between benign and aggressive tissues, between individual cancer cells, and between subcellular compartments, has been steadily elucidated. Changes in temporal pH-related processes on both fast and slow time scales, including altered kinetics of bicarbonate-CO<sub>2</sub> exchange and its effects on pH buffering and gradual, progressive changes driven by changes in metabolism, are further implicated in phenotypic changes observed in cancers. These discoveries have been driven by advances in imaging technologies. This review provides an overview of intra- and extracellular pH alterations in time and space reflected in cancer cells, as well as the available technology to study pH spatiotemporal heterogeneity.
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spelling doaj.art-d55a71bc6f1945f88e13c2980f979a052023-08-02T00:45:32ZengMDPI AGCancers2072-66942019-07-01117102610.3390/cancers11071026cancers11071026Spatiotemporal pH Heterogeneity as a Promoter of Cancer Progression and Therapeutic ResistanceDavid E. Korenchan0Robert R. Flavell1Department of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94143, USADepartment of Radiology and Biomedical Imaging, University of California, San Francisco, CA 94143, USADysregulation of pH in solid tumors is a hallmark of cancer. In recent years, the role of altered pH heterogeneity in space, between benign and aggressive tissues, between individual cancer cells, and between subcellular compartments, has been steadily elucidated. Changes in temporal pH-related processes on both fast and slow time scales, including altered kinetics of bicarbonate-CO<sub>2</sub> exchange and its effects on pH buffering and gradual, progressive changes driven by changes in metabolism, are further implicated in phenotypic changes observed in cancers. These discoveries have been driven by advances in imaging technologies. This review provides an overview of intra- and extracellular pH alterations in time and space reflected in cancer cells, as well as the available technology to study pH spatiotemporal heterogeneity.https://www.mdpi.com/2072-6694/11/7/1026tumor microenvironmentinterstitial pHacidosistumor heterogeneitymagnetic resonance imaginghyperpolarized <sup>13</sup>C MRIcarbonic anhydraselactic acidpositron emission tomography
spellingShingle David E. Korenchan
Robert R. Flavell
Spatiotemporal pH Heterogeneity as a Promoter of Cancer Progression and Therapeutic Resistance
Cancers
tumor microenvironment
interstitial pH
acidosis
tumor heterogeneity
magnetic resonance imaging
hyperpolarized <sup>13</sup>C MRI
carbonic anhydrase
lactic acid
positron emission tomography
title Spatiotemporal pH Heterogeneity as a Promoter of Cancer Progression and Therapeutic Resistance
title_full Spatiotemporal pH Heterogeneity as a Promoter of Cancer Progression and Therapeutic Resistance
title_fullStr Spatiotemporal pH Heterogeneity as a Promoter of Cancer Progression and Therapeutic Resistance
title_full_unstemmed Spatiotemporal pH Heterogeneity as a Promoter of Cancer Progression and Therapeutic Resistance
title_short Spatiotemporal pH Heterogeneity as a Promoter of Cancer Progression and Therapeutic Resistance
title_sort spatiotemporal ph heterogeneity as a promoter of cancer progression and therapeutic resistance
topic tumor microenvironment
interstitial pH
acidosis
tumor heterogeneity
magnetic resonance imaging
hyperpolarized <sup>13</sup>C MRI
carbonic anhydrase
lactic acid
positron emission tomography
url https://www.mdpi.com/2072-6694/11/7/1026
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