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Holmberg SR, Sakamoto Y, Kato A, Romero MF. The role of Na +-coupled bicarbonate transporters (NCBT) in health and disease. Pflugers Arch 2024; 476:479-503. [PMID: 38536494 DOI: 10.1007/s00424-024-02937-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 02/26/2024] [Accepted: 02/27/2024] [Indexed: 04/11/2024]
Abstract
Cellular and organism survival depends upon the regulation of pH, which is regulated by highly specialized cell membrane transporters, the solute carriers (SLC) (For a comprehensive list of the solute carrier family members, see: https://www.bioparadigms.org/slc/ ). The SLC4 family of bicarbonate (HCO3-) transporters consists of ten members, sorted by their coupling to either sodium (NBCe1, NBCe2, NBCn1, NBCn2, NDCBE), chloride (AE1, AE2, AE3), or borate (BTR1). The ionic coupling of SLC4A9 (AE4) remains controversial. These SLC4 bicarbonate transporters may be controlled by cellular ionic gradients, cellular membrane voltage, and signaling molecules to maintain critical cellular and systemic pH (acid-base) balance. There are profound consequences when blood pH deviates even a small amount outside the normal range (7.35-7.45). Chiefly, Na+-coupled bicarbonate transporters (NCBT) control intracellular pH in nearly every living cell, maintaining the biological pH required for life. Additionally, NCBTs have important roles to regulate cell volume and maintain salt balance as well as absorption and secretion of acid-base equivalents. Due to their varied tissue expression, NCBTs have roles in pathophysiology, which become apparent in physiologic responses when their expression is reduced or genetically deleted. Variations in physiological pH are seen in a wide variety of conditions, from canonically acid-base related conditions to pathologies not necessarily associated with acid-base dysfunction such as cancer, glaucoma, or various neurological diseases. The membranous location of the SLC4 transporters as well as recent advances in discovering their structural biology makes them accessible and attractive as a druggable target in a disease context. The role of sodium-coupled bicarbonate transporters in such a large array of conditions illustrates the potential of treating a wide range of disease states by modifying function of these transporters, whether that be through inhibition or enhancement.
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Affiliation(s)
- Shannon R Holmberg
- Physiology & Biomedical Engineering, Mayo Clinic College of Medicine & Science, 200 1st Street SW, Rochester, MN 55905, USA
- Biochemistry & Molecular Biology, Mayo Clinic College of Medicine & Science, 200 1st Street SW, Rochester, MN, USA
| | - Yohei Sakamoto
- School of Life Science and Technology, Tokyo Institute of Technology, Midori-Ku, Yokohama, 226-8501, Japan
| | - Akira Kato
- School of Life Science and Technology, Tokyo Institute of Technology, Midori-Ku, Yokohama, 226-8501, Japan
| | - Michael F Romero
- Physiology & Biomedical Engineering, Mayo Clinic College of Medicine & Science, 200 1st Street SW, Rochester, MN 55905, USA.
- Nephrology & Hypertension, Mayo Clinic College of Medicine & Science, 200 1st Street SW, Rochester, MN, USA.
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Sakellakis M, Chalkias A. The Role οf Ion Channels in the Development and Progression of Prostate Cancer. Mol Diagn Ther 2023; 27:227-242. [PMID: 36600143 DOI: 10.1007/s40291-022-00636-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2022] [Indexed: 01/06/2023]
Abstract
Ion channels have major regulatory functions in living cells. Apart from their role in ion transport, they are responsible for cellular electrogenesis and excitability, and may also regulate tissue homeostasis. Although cancer is not officially classified as a channelopathy, it has been increasingly recognized that ion channel aberrations play an important role in virtually all cancer types. Ion channels can exert pro-tumorigenic activities due to genetic or epigenetic alterations, or as a response to molecular signals, such as growth factors, hormones, etc. Increasing evidence suggests that ion channels and pumps play a critical role in the regulation of prostate cancer cell proliferation, apoptosis evasion, migration, epithelial-to-mesenchymal transition, and angiogenesis. There is also evidence suggesting that ion channels might play a role in treatment failure in patients with prostate cancer. Hence, they represent promising targets for diagnosis, staging, and treatment, and their effects may be of particular significance for specific patient populations, including those undergoing anesthesia and surgery. In this article, the role of major types of ion channels involved in the development and progression of prostate cancer are reviewed. Identifying the underlying molecular mechanisms of the pro-tumorigenic effects of ion channels may potentially inform the development of novel therapeutic strategies to counter this malignancy.
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Affiliation(s)
- Minas Sakellakis
- Hellenic GU Cancer Group, Athens, Greece. .,Department of Medical Oncology, Metropolitan Hospital, 9 Ethnarchou Makariou, 18547, Athens, Greece.
| | - Athanasios Chalkias
- Department of Anesthesiology, Faculty of Medicine, University of Thessaly, Larissa, Greece.,Outcomes Research Consortium, Cleveland, OH, USA
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Cappellesso F, Orban MP, Shirgaonkar N, Berardi E, Serneels J, Neveu MA, Di Molfetta D, Piccapane F, Caroppo R, Debellis L, Ostyn T, Joudiou N, Mignion L, Richiardone E, Jordan BF, Gallez B, Corbet C, Roskams T, DasGupta R, Tejpar S, Di Matteo M, Taverna D, Reshkin SJ, Topal B, Virga F, Mazzone M. Targeting the bicarbonate transporter SLC4A4 overcomes immunosuppression and immunotherapy resistance in pancreatic cancer. NATURE CANCER 2022; 3:1464-1483. [PMID: 36522548 PMCID: PMC9767871 DOI: 10.1038/s43018-022-00470-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 10/21/2022] [Indexed: 12/23/2022]
Abstract
Solid tumors are generally characterized by an acidic tumor microenvironment (TME) that favors cancer progression, therapy resistance and immune evasion. By single-cell RNA-sequencing analysis in individuals with pancreatic ductal adenocarcinoma (PDAC), we reveal solute carrier family 4 member 4 (SLC4A4) as the most abundant bicarbonate transporter, predominantly expressed by epithelial ductal cells. Functionally, SLC4A4 inhibition in PDAC cancer cells mitigates the acidosis of the TME due to bicarbonate accumulation in the extracellular space and a decrease in lactate production by cancer cells as the result of reduced glycolysis. In PDAC-bearing mice, genetic or pharmacological SLC4A4 targeting improves T cell-mediated immune response and breaches macrophage-mediated immunosuppression, thus inhibiting tumor growth and metastases. In addition, Slc4a4 targeting in combination with immune checkpoint blockade is able to overcome immunotherapy resistance and prolong survival. Overall, our data propose SLC4A4 as a therapeutic target to unleash an antitumor immune response in PDAC.
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Affiliation(s)
- Federica Cappellesso
- grid.11486.3a0000000104788040Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Marie-Pauline Orban
- grid.11486.3a0000000104788040Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Niranjan Shirgaonkar
- grid.418377.e0000 0004 0620 715XLaboratory of Precision Oncology and Cancer Evolution, Genome Institute of Singapore, A*STAR, Singapore, Singapore
| | - Emanuele Berardi
- grid.11486.3a0000000104788040Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Jens Serneels
- grid.11486.3a0000000104788040Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Marie-Aline Neveu
- grid.11486.3a0000000104788040Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Daria Di Molfetta
- grid.7644.10000 0001 0120 3326Department of Bioscience, Biotechnology and Biopharmaceutics, University of Bari, Bari, Italy
| | - Francesca Piccapane
- grid.7644.10000 0001 0120 3326Department of Bioscience, Biotechnology and Biopharmaceutics, University of Bari, Bari, Italy
| | - Rosa Caroppo
- grid.7644.10000 0001 0120 3326Department of Bioscience, Biotechnology and Biopharmaceutics, University of Bari, Bari, Italy
| | - Lucantonio Debellis
- grid.7644.10000 0001 0120 3326Department of Bioscience, Biotechnology and Biopharmaceutics, University of Bari, Bari, Italy
| | - Tessa Ostyn
- grid.5596.f0000 0001 0668 7884Department of Imaging and Pathology, Translational Cell and Tissue Research, KU Leuven and University Hospitals Leuven, Leuven, Belgium
| | - Nicolas Joudiou
- grid.7942.80000 0001 2294 713XNuclear and Electron Spin Technologies Platform (NEST), Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, Brussels, Belgium
| | - Lionel Mignion
- grid.7942.80000 0001 2294 713XNuclear and Electron Spin Technologies Platform (NEST), Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, Brussels, Belgium ,grid.7942.80000 0001 2294 713XBiomedical Magnetic Resonance Research Group, Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, Brussels, Belgium
| | - Elena Richiardone
- grid.7942.80000 0001 2294 713XPole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérmentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
| | - Bénédicte F. Jordan
- grid.7942.80000 0001 2294 713XNuclear and Electron Spin Technologies Platform (NEST), Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, Brussels, Belgium ,grid.7942.80000 0001 2294 713XBiomedical Magnetic Resonance Research Group, Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, Brussels, Belgium
| | - Bernard Gallez
- grid.7942.80000 0001 2294 713XNuclear and Electron Spin Technologies Platform (NEST), Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, Brussels, Belgium ,grid.7942.80000 0001 2294 713XBiomedical Magnetic Resonance Research Group, Louvain Drug Research Institute, UCLouvain, Université Catholique de Louvain, Brussels, Belgium
| | - Cyril Corbet
- grid.7942.80000 0001 2294 713XPole of Pharmacology and Therapeutics (FATH), Institut de Recherche Expérmentale et Clinique (IREC), Université Catholique de Louvain, Brussels, Belgium
| | - Tania Roskams
- grid.5596.f0000 0001 0668 7884Department of Imaging and Pathology, Translational Cell and Tissue Research, KU Leuven and University Hospitals Leuven, Leuven, Belgium
| | - Ramanuj DasGupta
- grid.418377.e0000 0004 0620 715XLaboratory of Precision Oncology and Cancer Evolution, Genome Institute of Singapore, A*STAR, Singapore, Singapore
| | - Sabine Tejpar
- grid.5596.f0000 0001 0668 7884Laboratory of Molecular Digestive Oncology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Mario Di Matteo
- grid.11486.3a0000000104788040Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
| | - Daniela Taverna
- grid.7605.40000 0001 2336 6580Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy ,grid.7605.40000 0001 2336 6580Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Stephan J. Reshkin
- grid.7644.10000 0001 0120 3326Department of Bioscience, Biotechnology and Biopharmaceutics, University of Bari, Bari, Italy
| | - Baki Topal
- grid.410569.f0000 0004 0626 3338Department of Abdominal Surgery, University Hospitals Gasthuisberg Leuven and KU Leuven, Leuven, Belgium
| | - Federico Virga
- grid.11486.3a0000000104788040Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium ,grid.7605.40000 0001 2336 6580Department of Molecular Biotechnology and Health Sciences, University of Torino, Torino, Italy ,grid.7605.40000 0001 2336 6580Molecular Biotechnology Center, University of Torino, Torino, Italy
| | - Massimiliano Mazzone
- grid.11486.3a0000000104788040Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, VIB, Leuven, Belgium ,grid.5596.f0000 0001 0668 7884Laboratory of Tumor Inflammation and Angiogenesis, Center for Cancer Biology, Department of Oncology, KU Leuven, Leuven, Belgium
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