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Sakellakis M, Yoon SM, Reet J, Chalkias A. Novel insights into voltage-gated ion channels: Translational breakthroughs in medical oncology. Channels (Austin) 2024; 18:2297605. [PMID: 38154047 PMCID: PMC10761148 DOI: 10.1080/19336950.2023.2297605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 12/05/2023] [Indexed: 12/30/2023] Open
Abstract
Preclinical evidence suggests that voltage gradients can act as a kind of top-down master regulator during embryogenesis and orchestrate downstream molecular-genetic pathways during organ regeneration or repair. Moreover, electrical stimulation shifts response to injury toward regeneration instead of healing or scarring. Cancer and embryogenesis not only share common phenotypical features but also commonly upregulated molecular pathways. Voltage-gated ion channel activity is directly or indirectly linked to the pathogenesis of cancer hallmarks, while experimental and clinical studies suggest that their modulation, e.g., by anesthetic agents, may exert antitumor effects. A large recent clinical trial served as a proof-of-principle for the benefit of preoperative use of topical sodium channel blockade as a potential anticancer strategy against early human breast cancers. Regardless of whether ion channel aberrations are primary or secondary cancer drivers, understanding the functional consequences of these events may guide us toward the development of novel therapeutic approaches.
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Affiliation(s)
- Minas Sakellakis
- Department of Medicine, Jacobi North Central Bronx Hospital, Bronx, USA
| | - Sung Mi Yoon
- Department of Medicine, Jacobi North Central Bronx Hospital, Bronx, USA
| | - Jashan Reet
- Department of Medicine, Jacobi North Central Bronx Hospital, Bronx, USA
| | - Athanasios Chalkias
- Institute for Translational Medicine and Therapeutics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
- Outcomes Research Consortium, Cleveland, OH, USA
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2
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Mafi A, Khoshnazar SM, Shahpar A, Nabavi N, Hedayati N, Alimohammadi M, Hashemi M, Taheriazam A, Farahani N. Mechanistic insights into circRNA-mediated regulation of PI3K signaling pathway in glioma progression. Pathol Res Pract 2024; 260:155442. [PMID: 38991456 DOI: 10.1016/j.prp.2024.155442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/22/2024] [Accepted: 06/28/2024] [Indexed: 07/13/2024]
Abstract
Circular RNAs (CircRNAs) are non-coding RNAs (ncRNAs) characterized by a stable circular structure that regulates gene expression at both transcriptional and post-transcriptional levels. They play diverse roles, including protein interactions, DNA methylation modification, protein-coding potential, pseudogene creation, and miRNA sponging, all of which influence various physiological processes. CircRNAs are often highly expressed in brain tissues, and their levels vary with neural development, suggesting their significance in nervous system diseases such as gliomas. Research has shown that circRNA expression related to the PI3K pathway correlates with various clinical features of gliomas. There is an interact between circRNAs and the PI3K pathway to regulate glioma cell processes such as proliferation, differentiation, apoptosis, inflammation, angiogenesis, and treatment resistance. Additionally, PI3K pathway-associated circRNAs hold potential as biomarkers for cancer diagnosis, prognosis, and treatment. In this study, we reviewed the latest advances in the expression and cellular roles of PI3K-mediated circRNAs and their connections to glioma carcinogenesis and progression. We also highlighted the significance of circRNAs as diagnostic and prognostic biomarkers and therapeutic targets in glioma.
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Affiliation(s)
- Alireza Mafi
- Nutrition and Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Clinical Biochemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Seyedeh Mahdieh Khoshnazar
- Gastroenterology and Hepatology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Amirhossein Shahpar
- Gastroenterology and Hepatology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran
| | - Noushin Nabavi
- Independent Researcher, Victoria, British Columbia, Canada
| | - Neda Hedayati
- School of Medicine, Iran University of Medical Science, Tehran, Iran.
| | - Mina Alimohammadi
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mehrdad Hashemi
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence Sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Najma Farahani
- Department of Genetics and Molecular Biology, Isfahan University of Medical Sciences, Isfahan, Iran.
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3
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Liang Q, Pan F, Qiu H, Zhou X, Cai J, Luo R, Xiong Z, Yang H, Zhang L. CLC-3 regulates TGF-β/smad signaling pathway to inhibit the process of fibrosis in hypertrophic scar. Heliyon 2024; 10:e24984. [PMID: 38333829 PMCID: PMC10850413 DOI: 10.1016/j.heliyon.2024.e24984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 02/10/2024] Open
Abstract
Objective To study the role and mechanism of chloride channel-3 (ClC-3) in the formation of hypertrophic scar by constructing ClC-3 interference vectors and examining their effects on human hypertrophic scar fibroblasts (HSFB). Methods Human HSFB and human normal skin fibroblasts (NSFB) were used in this study, and ClC-3 interference vectors were constructed to transfect cells. ClC-3 inhibitors NPPB and Tamoxifen were used to treat cells. Cell migration and the expression of TGF-β/Smad, CollagenⅠ,CollagenⅢ were examined to explore the role of ClC-3 in the formation of hypertrophic scar. Results Compared with the normal skin tissue, the positive expression of ClC-3 and TGF-β in the scar tissue was significantly increased. The relative expression of ClC-3 and TGF-β1 in HSFB cells was higher than that in NSFB cells. Interfering with the expression of CLC-3 can inhibit the migration of HSFB cells and the expression of TGF- β/Smad, CollagenⅠ/Ⅲ. The experiment of HSFB cells treated by CLC-3 inhibitors can also obtain similar results. Conclusion Inhibiting CLC-3 can reduce the formation of hypertrophic scars.
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Affiliation(s)
- Qian Liang
- Department of Medical Cosmetology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxue East Road, Xixiangtang District, Nanning City, Guangxi Province, China
| | - Fuqiang Pan
- Department of Medical Cosmetology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxue East Road, Xixiangtang District, Nanning City, Guangxi Province, China
| | - Houhuang Qiu
- Department of Medical Cosmetology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxue East Road, Xixiangtang District, Nanning City, Guangxi Province, China
| | - Xiang Zhou
- Department of Medical Cosmetology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxue East Road, Xixiangtang District, Nanning City, Guangxi Province, China
| | - Jieyun Cai
- Department of Medical Cosmetology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxue East Road, Xixiangtang District, Nanning City, Guangxi Province, China
| | - Ruijin Luo
- Department of Medical Cosmetology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxue East Road, Xixiangtang District, Nanning City, Guangxi Province, China
| | - Zenghui Xiong
- Department of Medical Cosmetology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxue East Road, Xixiangtang District, Nanning City, Guangxi Province, China
| | - Huawei Yang
- Department of Breast Surgery, Affiliated Cancer Hospital of Guangxi Medical University, No. 71 Hedi Road, Nanning City, Guangxi Province, China
| | - Liming Zhang
- Department of Medical Cosmetology, The Second Affiliated Hospital of Guangxi Medical University, No. 166 Daxue East Road, Xixiangtang District, Nanning City, Guangxi Province, China
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4
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Bundy J, Shaw J, Hammel M, Nguyen J, Robbins C, Mercier I, Suryanarayanan A. Role of β3 subunit of the GABA type A receptor in triple negative breast cancer proliferation, migration, and cell cycle progression. Cell Cycle 2024; 23:448-465. [PMID: 38623967 PMCID: PMC11174043 DOI: 10.1080/15384101.2024.2340912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 02/29/2024] [Indexed: 04/17/2024] Open
Abstract
Triple negative breast cancer (TNBC) is known for its heterogeneous nature and aggressive onset. The unresponsiveness to hormone therapies and immunotherapy and the toxicity of chemotherapeutics account for the limited treatment options for TNBC. Ion channels have emerged as possible therapeutic candidates for cancer therapy, but little is known about how ligand gated ion channels, specifically, GABA type A ligand-gated ion channel receptors (GABAAR), affect cancer pathogenesis. Our results show that the GABAA β3 subunit is expressed at higher levels in TNBC cell lines than non-tumorigenic cells, therefore contributing to the idea that limiting the GABAAR via knockdown of the GABAA β3 subunit is a potential strategy for decreasing the proliferation and migration of TNBC cells. We employed pharmacological and genetic approaches to investigate the role of the GABAA β3 subunit in TNBC proliferation, migration, and cell cycle progression. The results suggest that pharmacological antagonism or genetic knockdown of GABAA β3 subunit decreases TNBC proliferation and migration. In addition, GABAA β3 subunit knockdown causes cell cycle arrest in TNBC cell lines via decreased cyclin D1 and increased p21 expression. Our findings suggest that membrane bound GABAA receptors containing the β3 subunit can be further developed as a potential novel target for the treatment of TNBC.
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Affiliation(s)
- J Bundy
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph’s University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
| | - J Shaw
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph’s University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
| | - M Hammel
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph’s University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
| | - J Nguyen
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph’s University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
| | - C Robbins
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph’s University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
| | - I Mercier
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph’s University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
| | - A Suryanarayanan
- Department of Pharmaceutical Sciences, Philadelphia College of Pharmacy, Saint Joseph’s University, Pharmacology and Toxicology Center (PTC), Philadelphia, PA, USA
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5
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Maliszewska-Olejniczak K, Bednarczyk P. Novel insights into the role of ion channels in cellular DNA damage response. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2024; 793:108488. [PMID: 38266668 DOI: 10.1016/j.mrrev.2024.108488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 01/26/2024]
Abstract
The DNA damage response (DDR) is a complex and highly regulated cellular process that detects and repairs DNA damage. The integrity of the DNA molecule is crucial for the proper functioning and survival of cells, as DNA damage can lead to mutations, genomic instability, and various diseases, including cancer. The DDR safeguards the genome by coordinating a series of signaling events and repair mechanisms to maintain genomic stability and prevent the propagation of damaged DNA to daughter cells. The study of an ion channels in the context of DDR is a promising avenue in biomedical research. Lately, it has been reported that the movement of ions through channels plays a crucial role in various physiological processes, including nerve signaling, muscle contraction, cell signaling, and maintaining cell membrane potential. Knowledge regarding the involvement of ion channels in the DDR could support refinement of our approach to several pathologies, mainly cancer, and perhaps lead to innovative therapies. In this review, we focused on the ion channel's possible role in the DDR. We present an analysis of the involvement of ion channels in DDR, their role in DNA repair mechanisms, and cellular outcomes. By addressing these areas, we aim to provide a comprehensive perspective on ion channels in the DDR and potentially guide future research in this field. It is worth noting that the interplay between ion channels and the cellular DDR is complex and multifaceted. More research is needed to fully understand the underlying mechanisms and potential therapeutic implications of these interactions.
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Affiliation(s)
- Kamila Maliszewska-Olejniczak
- Department of Physics and Biophysics, Institute of Biology, Warsaw University of Life Sciences - SGGW, Warsaw, Poland.
| | - Piotr Bednarczyk
- Department of Physics and Biophysics, Institute of Biology, Warsaw University of Life Sciences - SGGW, Warsaw, Poland
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Chiliquinga AJ, Acosta B, Ogonaga-Borja I, Villarruel-Melquiades F, de la Garza J, Gariglio P, Ocádiz-Delgado R, Ramírez A, Sánchez-Pérez Y, García-Cuellar CM, Bañuelos C, Camacho J. Ion Channels as Potential Tools for the Diagnosis, Prognosis, and Treatment of HPV-Associated Cancers. Cells 2023; 12:1376. [PMID: 37408210 DOI: 10.3390/cells12101376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/19/2023] [Accepted: 05/05/2023] [Indexed: 07/07/2023] Open
Abstract
The human papilloma virus (HPV) group comprises approximately 200 genetic types that have a special affinity for epithelial tissues and can vary from producing benign symptoms to developing into complicated pathologies, such as cancer. The HPV replicative cycle affects various cellular and molecular processes, including DNA insertions and methylation and relevant pathways related to pRb and p53, as well as ion channel expression or function. Ion channels are responsible for the flow of ions across cell membranes and play very important roles in human physiology, including the regulation of ion homeostasis, electrical excitability, and cell signaling. However, when ion channel function or expression is altered, the channels can trigger a wide range of channelopathies, including cancer. In consequence, the up- or down-regulation of ion channels in cancer makes them attractive molecular markers for the diagnosis, prognosis, and treatment of the disease. Interestingly, the activity or expression of several ion channels is dysregulated in HPV-associated cancers. Here, we review the status of ion channels and their regulation in HPV-associated cancers and discuss the potential molecular mechanisms involved. Understanding the dynamics of ion channels in these cancers should help to improve early diagnosis, prognosis, and treatment in the benefit of HPV-associated cancer patients.
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Affiliation(s)
| | - Brenda Acosta
- Grupo de Investigación de Ciencias en Red, Universidad Técnica del Norte, Ibarra 100105, Ecuador
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico CP 07360, Mexico
| | - Ingrid Ogonaga-Borja
- Grupo de Investigación de Ciencias en Red, Universidad Técnica del Norte, Ibarra 100105, Ecuador
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico CP 07360, Mexico
| | - Fernanda Villarruel-Melquiades
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico CP 07360, Mexico
| | - Jaime de la Garza
- Unidad de Oncología Torácica y Laboratorio de Medicina Personalizada, Instituto Nacional de Cancerología (INCan), Tlalpan, Ciudad de Mexico CP 14080, Mexico
| | - Patricio Gariglio
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico CP 07360, Mexico
| | - Rodolfo Ocádiz-Delgado
- Departamento de Genética y Biología Molecular, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico CP 07360, Mexico
| | - Ana Ramírez
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Calzada Universidad 14418, Tijuana 22390, Mexico
| | - Yesennia Sánchez-Pérez
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología (INCan), Tlalpan, Ciudad de Mexico CP 14080, Mexico
| | - Claudia M García-Cuellar
- Subdirección de Investigación Básica, Instituto Nacional de Cancerología (INCan), Tlalpan, Ciudad de Mexico CP 14080, Mexico
| | - Cecilia Bañuelos
- Programa Transdisciplinario en Desarrollo Científico y Tecnológico para la Sociedad, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico CP 07360, Mexico
| | - Javier Camacho
- Departamento de Farmacología, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN), Ciudad de Mexico CP 07360, Mexico
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7
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Bioelectronic medicines: Therapeutic potential and advancements in next-generation cancer therapy. Biochim Biophys Acta Rev Cancer 2022; 1877:188808. [DOI: 10.1016/j.bbcan.2022.188808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/07/2022] [Accepted: 09/27/2022] [Indexed: 11/22/2022]
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Huang Y, Wang X, Hu R, Pan G, Lin X. SOX2 regulates paclitaxel resistance of A549 non‑small cell lung cancer cells via promoting transcription of ClC‑3. Oncol Rep 2022; 48:181. [PMID: 36069232 PMCID: PMC9478990 DOI: 10.3892/or.2022.8396] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 08/11/2022] [Indexed: 11/05/2022] Open
Abstract
Paclitaxel (PTX) is widely used in the treatment of non‑small cell lung cancer (NSCLC). However, acquired PTX drug resistance is a major obstacle to its therapeutic efficacy and the underlying mechanisms are still unclear. The present study revealed a novel role of the SRY‑box transcription factor 2 (SOX2)‑chloride voltage‑gated channel‑3 (ClC‑3) axis in PTX resistance of A549 NSCLC cells. The expression levels of SOX2 and ClC‑3 were upregulated in PTX‑resistant A549 NSCLC cells by RT‑qPCR and western blotting. The drug resistance to PTX of A549 NSCLC cells were measured by detecting the cell viability and the expression of drug resistance markers. Knockdown of SOX2 or ClC‑3 effectively decreased PTX resistance of A549 NSCLC cells, whereas SOX2 or ClC‑3 overexpression promoted PTX resistance. Mechanistically, SOX2 bound to the promoter of ClC‑3 and enhanced the transcriptional activation of ClC‑3 expression by CUT&Tag assays, CUT&Tag qPCR and luciferase reporter. In summary, the present findings defined ClC‑3 as an important downstream effector of SOX2 and ClC‑3 and SOX2 contributed to PTX resistance. Targeting SOX2 and its downstream effector ClC‑3 increased the sensitivity of NSCLC cells to PTX treatment, which provided potential therapeutic strategies for patients with NSCLC with PTX resistance.
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Affiliation(s)
- Youwei Huang
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Xiangyu Wang
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Rendong Hu
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Guopeng Pan
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Xi Lin
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China
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Xiu M, Li L, Li Y, Gao Y. An update regarding the role of WNK kinases in cancer. Cell Death Dis 2022; 13:795. [PMID: 36123332 PMCID: PMC9485243 DOI: 10.1038/s41419-022-05249-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 01/23/2023]
Abstract
Mammalian WNK kinases (WNKs) are serine/threonine kinases that contain four members, WNK1-4. They function to maintain ion homeostasis and regulate blood pressure in mammals. Recent studies have revealed that the dysregulation of WNKs contributes to tumor growth, metastasis, and angiogenesis through complex mechanisms, especially through phosphorylating kinase substrates SPS1-related proline/alanine-rich kinase (SPAK) and oxidative stress-responsive kinase 1 (OSR1). Here, we review and discuss the relationships between WNKs and several key factors/biological processes in cancer, including ion channels, cation chloride cotransporters, sodium bicarbonate cotransporters, signaling pathways, angiogenesis, autophagy, and non-coding RNAs. In addition, the potential drugs for targeting WNK-SPAK/OSR1 signaling have also been discussed. This review summarizes and discusses knowledge of the roles of WNKs in cancer, which provides a comprehensive reference for future studies.
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Affiliation(s)
- Mengxi Xiu
- grid.24516.340000000123704535Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, 200120 Shanghai, China
| | - Li Li
- grid.24516.340000000123704535Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, 200120 Shanghai, China
| | - Yandong Li
- grid.24516.340000000123704535Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, 200120 Shanghai, China
| | - Yong Gao
- grid.24516.340000000123704535Department of Oncology, Shanghai East Hospital, Tongji University School of Medicine, 200120 Shanghai, China
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10
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Han Y, Zhou Y, Zhou L, Jia X, Yu X, An X, Shi Z. Blockade of ClC-3 enhances cisplatin-sensitivity of cholangiocarcinoma cells though inhibiting autophagy. Can J Physiol Pharmacol 2022; 100:584-593. [PMID: 35413227 DOI: 10.1139/cjpp-2022-0058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chemotherapy is one of the most important strategies in the treatment of cancer, however, chemo-resistance restricts the effect of chemotherapy. Growing reports suggest that chloride channel-3 (ClC-3) is involved in regulating the sensitivity of multiple chemotherapeutic agents in the chemotherapy of various tumors, while its role in the chemotherapy of cholangiocarcinoma (CCA) is still poorly understood. Herein, we observed that ClC-3 was highly expressed in CCA chemo-resistant tissues and CCA cisplatin-resistant cells QBC939/DDP, and, the sensitivities of QBC939 and QBC939/DDP cells to cisplatin were all increased after inhibition of ClC-3. Further mechanism exploration revealed that ClC-3 knockdown reduced the level of autophagy. Furthermore, in both QBC939 and QBC939/DDP cells, the autophagy agonist rapamycin eliminated the increased cisplatin sensitivity of ClC-3 knockdown without affecting ClC-3 expression. Collectively, all the findings demonstrate that ClC-3 knockdown increases cisplatin-induced cell death in CCA cells though inhibiting autophagy, regardless of the occurrence of cisplatin resistance. In addition, our results also suggest that targeted inhibition of ClC-3 may be a potential strategy for chemosensitization in CCA chemotherapy.
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Affiliation(s)
- Yanzhen Han
- Affiliated Hospital of Hebei Engineering University, Department of General Surgery, Handan, China;
| | - Yan Zhou
- Hebei University of Engineering, 117798, Department of Nursing, Handan, China;
| | - Liyuan Zhou
- Affiliated Hospital of Hebei Engineering University, Department of Gynaecology, Handan, China;
| | - Xiaoyan Jia
- Affiliated Hospital of Hebei Engineering University, Department of General Surgery, Handan, China;
| | - Xiangjun Yu
- Affiliated Hospital of Hebei Engineering University, Department of General Surgery, Handan, China;
| | - Xiaohong An
- Jize County People's Hospital, Department of Hospital Infection-Control, Jize, China;
| | - Zhe Shi
- Affiliated Hospital of Hebei Engineering University, Department of General Surgery, Handan, China;
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11
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Huang J, Sheng X, Zhuo Z, Xiao D, Wu K, Wan G, Chen H. ClC-c regulates the proliferation of intestinal stem cells via the EGFR signalling pathway in Drosophila. Cell Prolif 2021; 55:e13173. [PMID: 34952996 PMCID: PMC8780901 DOI: 10.1111/cpr.13173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 12/04/2021] [Accepted: 12/10/2021] [Indexed: 02/05/2023] Open
Abstract
Objectives Adult stem cells uphold a delicate balance between quiescent and active states, which is crucial for tissue homeostasis. Whereas many signalling pathways that regulate epithelial stem cells have been reported, many regulators remain unidentified. Materials and Methods Flies were used to generate tissue‐specific gene knockdown and gene knockout. qRT‐PCR was used to assess the relative mRNA levels. Immunofluorescence was used to determine protein localization and expression patterns. Clonal analyses were used to observe the phenotype. RNA‐seq was used to screen downstream mechanisms. Results Here, we report a member of the chloride channel family, ClC‐c, which is specifically expressed in Drosophila intestinal stem/progenitor cells and regulates intestinal stem cell (ISC) proliferation under physiological conditions and upon tissue damage. Mechanistically, we found that the ISC loss induced by the depletion of ClC‐c in intestinal stem/progenitor cells is due to inhibition of the EGFR signalling pathway. Conclusion Our findings reveal an ISC‐specific function of ClC‐c in regulating stem cell maintenance and proliferation, thereby providing new insights into the functional links among the chloride channel family, ISC proliferation and tissue homeostasis.
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Affiliation(s)
- Jinping Huang
- Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiao Sheng
- Laboratory of Metabolism and Aging Research, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhangpeng Zhuo
- Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Danqing Xiao
- Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Kun Wu
- Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Gang Wan
- Guangdong Province Key Laboratory of Pharmaceutical Functional Genes, Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Haiyang Chen
- Laboratory of Metabolism and Aging Research, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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12
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Abstract
Artificial receptors able to recognise biologically relevant molecules or ions have gained interest in the chemical community because they offer a plethora of posibilities. Molecular cage compounds are polycyclic compounds with a cavity designed for the encapsulation of guest species. Once inside the host cavity, the substrate can be transported through membranes and protected from the action of enzymes or other reactive species, thus offering the possibility of interfering with biological systems. Commonly, enzymes have been an inspiration for chemists in the search and design of defined cavities for different purposes. However, the chemical preparation of molecular cages has struggled with many synthetic challenges but this effort is worthwhile as they are a very promising tool for many applications ranging from sensing, delivery, purification or even promotion of/prevention from chemical modifications. Since the early reports at the end of the 60s, this field has experienced a growing interest; this review summarises the progress in the preparation and study of cage-like compounds highlighting their importance in biological applications.
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Affiliation(s)
- Lucía Tapia
- Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia, IQAC-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.
| | - Ignacio Alfonso
- Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia, IQAC-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.
| | - Jordi Solà
- Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia, IQAC-CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain.
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13
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Feng J, Peng Z, Gao L, Yang X, Sun Z, Hou X, Li E, Zhu L, Yang H. ClC-3 promotes paclitaxel resistance via modulating tubulins polymerization in ovarian cancer cells. Biomed Pharmacother 2021; 138:111407. [PMID: 33765585 DOI: 10.1016/j.biopha.2021.111407] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 02/13/2021] [Accepted: 02/16/2021] [Indexed: 12/19/2022] Open
Abstract
Epithelial ovarian cancers (EOC) present as malignant tumors with high mortality in the female reproductive system diseases. Acquired resistance to paclitaxel (PTX), one of the first-line treatment of EOC, remains a therapeutic challenge. ClC-3, a member of the voltage-gated Cl- channels, plays an essential role in a variety of cellular activities, including chemotherapeutic resistance. Here, we demonstrated that the protein expression and channel function of ClC-3 was upregulated in PTX resistance A2780/PTX cells compared with its parental A2780 cells. The silence of ClC-3 expression by siRNA in A2780/PTX cells partly recovered the PTX sensitivity through restored the G2/M arrest and resumed the chloride channel blocked. ClC-3 siRNA both inhibited the expression of ClC-3 and β-tubulin, whereas the β-tubulin siRNA reduced the expression of itself only, without affecting the expression of ClC-3. Moreover, treatment of ClC-3 siRNA in A2780/PTX cells increased the polymerization ratio of β-tubulin, and the possibility of proteins interaction between ClC-3 and β-tubulin was existing. Take together, the over-expression of ClC-3 protein in PTX-resistance ovarian cancer cells promotes the combination of ClC-3 and β-tubulin, which in turn increase the ration of free form and decrease the quota of the polymeric form of β-tubulin, and finally reduce the sensitivity to PTX. Our findings elucidated a novel function of ClC-3 in regulating PTX resistance and ClC-3 could serve as a potential target to overcome the PTX resistance ovarian cancer.
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Affiliation(s)
- Jiezhu Feng
- Department of Pharmacology, Medical College, Jinan University, Guangzhou 510632, China
| | - Zihan Peng
- Department of Pharmacology, Medical College, Jinan University, Guangzhou 510632, China
| | - Lvfen Gao
- Department of Obstetrics and Gynecology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Xiurou Yang
- Department of Pharmacology, Medical College, Jinan University, Guangzhou 510632, China
| | - Zele Sun
- Department of Pharmacology, Medical College, Jinan University, Guangzhou 510632, China
| | - Xiuying Hou
- Department of Physiology, School of Medicine, Jinan University, Guangzhou 510632, China
| | - Enze Li
- Department of Pharmacology, Medical College, Jinan University, Guangzhou 510632, China
| | - Linyan Zhu
- Department of Pharmacology, Medical College, Jinan University, Guangzhou 510632, China; Department of Physiology, School of Medicine, Jinan University, Guangzhou 510632, China.
| | - Haifeng Yang
- Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou 510120, China.
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14
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Mitsuda M, Shiozaki A, Kudou M, Shimizu H, Arita T, Kosuga T, Konishi H, Komatsu S, Kubota T, Fujiwara H, Okamoto K, Kishimoto M, Konishi E, Otsuji E. Functional Analysis and Clinical Significance of Chloride Channel 2 Expression in Esophageal Squamous Cell Carcinoma. Ann Surg Oncol 2021; 28:5384-5397. [PMID: 33565032 DOI: 10.1245/s10434-021-09659-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 01/13/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND Chloride channel 2 (CLCN2) was recently shown to affect tumor behavior. The present study examined the functions of CLCN2 in the regulation of genes that play a role in tumor progression, as well as its clinicopathological significance in esophageal squamous cell carcinoma (ESCC). METHODS Knockdown experiments were conducted using CLCN2-small-interfering RNA, and changes in proliferation, survival, and cellular movement in human ESCC cell lines were investigated. A microarray analysis of gene expression profiles in CLCN2-depleted ESCC cells was conducted. Fifty-four primary ESCC samples were examined by immunohistochemistry (IHC). RESULTS The strong expression of CLCN2 was detected in TE5 and KYSE70 cells. Downregulated expression of CLCN2 enhanced proliferation and decreased apoptosis, whereas its upregulation inhibited proliferation and increased apoptosis. The effects of lubiprostone, a CLCN2 activator, were also investigated. In lubiprostone-treated cells, proliferation was inhibited and apoptosis was increased. The microarray analysis demonstrated that interferon (IFN) signaling-related genes were downregulated in CLCN2-depleted cells. IHC showed the presence of CLCN2 in the cytoplasm and cell membranes of ESCC cells. The prognostic analysis revealed a relationship between weak CLCN2 expression and shorter overall survival. CONCLUSIONS The present results indicate that tumor progression is regulated by CLCN2 through its effects on IFN signaling. Furthermore, weak CLCN2 expression was associated with poorer outcomes in ESCC patients. The present study will contribute to a clearer understanding of the role of CLCN2 as a mediator of ESCC, as well as its use as a biomarker for this cancer.
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Affiliation(s)
- Masato Mitsuda
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Atsushi Shiozaki
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - Michihiro Kudou
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hiroki Shimizu
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Tomohiro Arita
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Toshiyuki Kosuga
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hirotaka Konishi
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Shuhei Komatsu
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Takeshi Kubota
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Hitoshi Fujiwara
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Kazuma Okamoto
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mitsuo Kishimoto
- Department of Pathology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Eiichi Konishi
- Department of Pathology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Eigo Otsuji
- Division of Digestive Surgery, Department of Surgery, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Abstract
Extracellular acidification is a well-known driver of tumorigenesis that has been extensively studied. In contrast, the role of endosomal pH is novel and relatively unexplored. There is emerging evidence from a growing number of studies showing that the pH of endosomal compartments controls proliferation, migration, stemness, and sensitivity to chemoradiation therapy in a variety of tumors. Endosomes are a crucial hub, mediating cellular communication with the external environment. By finely regulating the sorting and trafficking of vesicular cargo for degradation or recycling, endosomal pH determines the fate of plasma membrane proteins, lipids, and extracellular signals including growth factor receptors and their ligands. Several critical regulators of endosomal pH have been identified, including multiple isoforms of the family of electroneutral Na+/H+ exchangers (NHE) such as NHE6 and NHE9. Recent studies have shed light on molecular mechanisms linking endosomal pH to cancer malignancy. Manipulating endosomal pH by epigenetic reprogramming, small molecules, or nanoparticles may offer promising new options in cancer therapy. In this review, we summarize evidence linking endosomal pH to cancer, with a focus on the role of endosomal Na+/H+ exchangers and how they affect the prognosis of cancer patients, and also suggest how regulation of endosomal pH may be exploited to develop new cancer therapies.
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16
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Robinson AJ, Jain A, Sherman HG, Hague RJM, Rahman R, Sanjuan‐Alberte P, Rawson FJ. Toward Hijacking Bioelectricity in Cancer to Develop New Bioelectronic Medicine. ADVANCED THERAPEUTICS 2021. [DOI: 10.1002/adtp.202000248] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Andie J. Robinson
- Regenerative Medicine and Cellular Therapies, School of Pharmacy University of Nottingham Nottingham NG7 2RD UK
| | - Akhil Jain
- Regenerative Medicine and Cellular Therapies, School of Pharmacy University of Nottingham Nottingham NG7 2RD UK
| | - Harry G. Sherman
- Regenerative Medicine and Cellular Therapies, School of Pharmacy University of Nottingham Nottingham NG7 2RD UK
| | - Richard J. M. Hague
- Centre for Additive Manufacturing, Faculty of Engineering University of Nottingham Nottingham NG8 1BB UK
| | - Ruman Rahman
- Children's Brain Tumour Research Centre, Biodiscovery Institute, School of Medicine University of Nottingham Nottingham NG7 2RD UK
| | - Paola Sanjuan‐Alberte
- Regenerative Medicine and Cellular Therapies, School of Pharmacy University of Nottingham Nottingham NG7 2RD UK
- Department of Bioengineering and iBB‐Institute for Bioengineering and Biosciences, Instituto Superior Técnico Universidade de Lisboa Lisbon 1049‐001 Portugal
| | - Frankie J. Rawson
- Regenerative Medicine and Cellular Therapies, School of Pharmacy University of Nottingham Nottingham NG7 2RD UK
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17
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Reduced Graphene Oxides Modulate the Expression of Cell Receptors and Voltage-Dependent Ion Channel Genes of Glioblastoma Multiforme. Int J Mol Sci 2021; 22:ijms22020515. [PMID: 33419226 PMCID: PMC7825604 DOI: 10.3390/ijms22020515] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/29/2020] [Accepted: 01/04/2021] [Indexed: 02/07/2023] Open
Abstract
The development of nanotechnology based on graphene and its derivatives has aroused great scientific interest because of their unusual properties. Graphene (GN) and its derivatives, such as reduced graphene oxide (rGO), exhibit antitumor effects on glioblastoma multiforme (GBM) cells in vitro. The antitumor activity of rGO with different contents of oxygen-containing functional groups and GN was compared. Using FTIR (fourier transform infrared) analysis, the content of individual functional groups (GN/exfoliation (ExF), rGO/thermal (Term), rGO/ammonium thiosulphate (ATS), and rGO/ thiourea dioxide (TUD)) was determined. Cell membrane damage, as well as changes in the cell membrane potential, was analyzed. Additionally, the gene expression of voltage-dependent ion channels (clcn3, clcn6, cacna1b, cacna1d, nalcn, kcne4, kcnj10, and kcnb1) and extracellular receptors was determined. A reduction in the potential of the U87 glioma cell membrane was observed after treatment with rGO/ATS and rGO/TUD flakes. Moreover, it was also demonstrated that major changes in the expression of voltage-dependent ion channel genes were observed in clcn3, nalcn, and kcne4 after treatment with rGO/ATS and rGO/TUD flakes. Furthermore, the GN/ExF, rGO/ATS, and rGO/TUD flakes significantly reduced the expression of extracellular receptors (uPar, CD105) in U87 glioblastoma cells. In conclusion, the cytotoxic mechanism of rGO flakes may depend on the presence and types of oxygen-containing functional groups, which are more abundant in rGO compared to GN.
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18
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Gu Z, Wang L, Yao X, Long Q, Lee K, Li J, Yue D, Yang S, Liu Y, Li N, Li Y. ClC-3/SGK1 regulatory axis enhances the olaparib-induced antitumor effect in human stomach adenocarcinoma. Cell Death Dis 2020; 11:898. [PMID: 33093458 PMCID: PMC7583252 DOI: 10.1038/s41419-020-03107-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 10/06/2020] [Accepted: 10/07/2020] [Indexed: 12/14/2022]
Abstract
Currently, only a few available targeted drugs are considered to be effective in stomach adenocarcinoma (STAD) treatment. The PARP inhibitor olaparib is a molecularly targeted drug that continues to be investigated in BRCA-mutated tumors. However, in tumors without BRCA gene mutations, particularly in STAD, the effect and molecular mechanism of olaparib are unclear, which largely restricts the use of olaparib in STAD treatment. In this study, the in vitro results showed that olaparib specifically inhibited cell growth and migration, exerting antitumor effect in STAD cell lines. In addition, a ClC-3/SGK1 regulatory axis was identified and validated in STAD cells. We then found that the down-regulation of ClC-3/SGK1 axis attenuated olaparib-induced cell growth and migration inhibition. On the contrary, the up-regulation of ClC-3/SGK1 axis enhanced olaparib-induced cell growth and migration inhibition, and the enhancement effect could be attenuated by SGK1 knockdown. Consistently, the whole-cell recorded chloride current activated by olaparib presented the same variation trend. Next, the clinical data showed that ClC-3 and SGK1 were highly expressed in human STAD tissues and positively correlated (r = 0.276, P = 0.009). Furthermore, high protein expression of both ClC-3 (P = 0.030) and SGK1 (P = 0.006) was associated with poor survival rate in STAD patients, and positive correlations between ClC-3/SGK1 and their downstream molecules in STAD tissues were demonstrated via the GEPIA datasets. Finally, our results suggested that olaparib inhibited the PI3K/AKT pathway in STAD cells, and up-regulation of ClC-3/SGK1 axis enhanced olaparib-induced PI3K/AKT pathway inhibition. The animal experiments indicated that olaparib also exerted antitumor effect in vivo. Altogether, our findings illustrate that olaparib exerts antitumor effect in human STAD, and ClC-3/SGK1 regulatory axis enhances the olaparib-induced antitumor effect. Up-regulation of the ClC-3/SGK1 axis may provide promising therapeutic potential for the clinical application of olaparib in STAD treatment.
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Affiliation(s)
- Zhuoyu Gu
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Liping Wang
- Department of Clinical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Xiaohan Yao
- Medical Research Center, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Qian Long
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Kaping Lee
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Jieyao Li
- Department of Clinical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Dongli Yue
- Department of Clinical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Shuangning Yang
- Department of Clinical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Yanfen Liu
- Department of Clinical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China
| | - Na Li
- Department of Cardiovascular Medicine, Qingdao No. 9 People's Hospital, Shandong, China
| | - Yixin Li
- Department of Clinical Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, China.
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19
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Chen J, Wang F, Lu Y, Yang S, Chen X, Huang Y, Lin X. CLC-3 and SOX2 regulate the cell cycle in DU145 cells. Oncol Lett 2020; 20:372. [PMID: 33154770 PMCID: PMC7608052 DOI: 10.3892/ol.2020.12235] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 07/23/2020] [Indexed: 12/28/2022] Open
Abstract
Sex determining region Y-box 2 (SOX2) is a transcription factor that serves a role in numerous different types of malignant cancer. Altered expression of chloride channel proteins has been described in a variety of malignancies. However, the association between SOX2 and chloride channel proteins is not yet fully understood. The present study investigated the association between SOX2 and chloride voltage-gated channel 3 (CLC-3) in prostate cancer. Flow cytometry demonstrated that the inactivation of CLC-3 or SOX2 arrested cell cycle progression in the G0/G1 phase. Furthermore, CLC-3 was observed to bind to SOX2, and vice versa, by co-immunoprecipitation. SOX2 appears to initiate and maintain prostate cancer tumorigenesis, in part, by modulating the cell cycle. These findings indicate the potential of SOX2 and CLC-3 as targets for the development of multi-targeted therapeutics.
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Affiliation(s)
- Jiahong Chen
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Fang Wang
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Yuli Lu
- Department of Epidemiology and Health Statistics, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Shangqi Yang
- Department of Epidemiology and Health Statistics, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Xueqin Chen
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Youwei Huang
- Department of Pathology and Pathophysiology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China
| | - Xi Lin
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, Guangdong 510632, P.R. China.,Key Laboratory for Environmental Exposure and Health, Environment College, Jinan University, Guangzhou, Guangdong 510632, P.R. China
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20
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How Dysregulated Ion Channels and Transporters Take a Hand in Esophageal, Liver, and Colorectal Cancer. Rev Physiol Biochem Pharmacol 2020; 181:129-222. [PMID: 32875386 DOI: 10.1007/112_2020_41] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Over the last two decades, the understanding of how dysregulated ion channels and transporters are involved in carcinogenesis and tumor growth and progression, including invasiveness and metastasis, has been increasing exponentially. The present review specifies virtually all ion channels and transporters whose faulty expression or regulation contributes to esophageal, hepatocellular, and colorectal cancer. The variety reaches from Ca2+, K+, Na+, and Cl- channels over divalent metal transporters, Na+ or Cl- coupled Ca2+, HCO3- and H+ exchangers to monocarboxylate carriers and organic anion and cation transporters. In several cases, the underlying mechanisms by which these ion channels/transporters are interwoven with malignancies have been fully or at least partially unveiled. Ca2+, Akt/NF-κB, and Ca2+- or pH-dependent Wnt/β-catenin signaling emerge as cross points through which ion channels/transporters interfere with gene expression, modulate cell proliferation, trigger epithelial-to-mesenchymal transition, and promote cell motility and metastasis. Also miRs, lncRNAs, and DNA methylation represent potential links between the misexpression of genes encoding for ion channels/transporters, their malfunctioning, and cancer. The knowledge of all these molecular interactions has provided the basis for therapeutic strategies and approaches, some of which will be broached in this review.
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21
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Capatina AL, Lagos D, Brackenbury WJ. Targeting Ion Channels for Cancer Treatment: Current Progress and Future Challenges. Rev Physiol Biochem Pharmacol 2020; 183:1-43. [PMID: 32865696 DOI: 10.1007/112_2020_46] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Ion channels are key regulators of cancer cell pathophysiology. They contribute to a variety of processes such as maintenance of cellular osmolarity and membrane potential, motility (via interactions with the cytoskeleton), invasion, signal transduction, transcriptional activity and cell cycle progression, leading to tumour progression and metastasis. Ion channels thus represent promising targets for cancer therapy. Ion channels are attractive targets because many of them are expressed at the plasma membrane and a broad range of existing inhibitors are already in clinical use for other indications. However, many of the ion channels identified in cancer cells are also active in healthy normal cells, so there is a risk that certain blockers may have off-target effects on normal physiological function. This review describes recent research advances into ion channel inhibitors as anticancer therapeutics. A growing body of evidence suggests that a range of existing and novel Na+, K+, Ca2+ and Cl- channel inhibitors may be effective for suppressing cancer cell proliferation, migration and invasion, as well as enhancing apoptosis, leading to suppression of tumour growth and metastasis, either alone or in combination with standard-of-care therapies. The majority of evidence to date is based on preclinical in vitro and in vivo studies, although there are several examples of ion channel-targeting strategies now reaching early phase clinical trials. Given the strong links between ion channel function and regulation of tumour growth, metastasis and chemotherapy resistance, it is likely that further work in this area will facilitate the development of new therapeutic approaches which will reach the clinic in the future.
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Affiliation(s)
| | - Dimitris Lagos
- Hull York Medical School, York, UK
- York Biomedical Research Institute, University of York, York, UK
| | - William J Brackenbury
- Department of Biology, University of York, York, UK.
- York Biomedical Research Institute, University of York, York, UK.
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22
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Volume-regulated anion channel as a novel cancer therapeutic target. Int J Biol Macromol 2020; 159:570-576. [DOI: 10.1016/j.ijbiomac.2020.05.137] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 04/23/2020] [Accepted: 05/17/2020] [Indexed: 01/01/2023]
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23
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Alkhezayem S, Wani TA, Wakil S, Aljuraysi A, Zargar S. Transcriptome analysis of neratinib treated HER2 positive cancer model vs untreated cancer unravels the molecular mechanism of action of neratinib. Saudi Pharm J 2020; 28:963-970. [PMID: 32792841 PMCID: PMC7414076 DOI: 10.1016/j.jsps.2020.06.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/25/2020] [Indexed: 02/07/2023] Open
Abstract
Human estrogen receptor positive cancer cells have mutations and make an excess of the HER2 protein and are far more aggressive than others cancers. Neratinib, an irreversible tyrosine kinase inhibitor is used to treat HER2 positive cancers. Neratinib targets HER2 and blocks its signal transduction resulting in inhibition of cell proliferation and induction of apoptosis without any information about the molecular mechanism involved. To understand the underlying molecular mechanism transcriptome analysis was carried out in normal vs cancer induced SWR/J nude mice. Cancer was induced in SWR/J nude mice with intraperitoneal injection of 5 × 106 SKBR3 cells for 14 days. Histopathology confirmed the induction of cancer in liver and kidney after the tumor size was at least 0.5 cm. Genome wide Mouse U133 Array was used to analyze the effect of neratinib treatment on cancer. Validation of expression was done by qPCR and ELISA. Microscopic examination revealed that neratinib treatment has potential effects on cancerous liver. Transcriptome expression profiling showed 1481 transcripts differentially expressed by neratinib treatment. Transcriptome Analysis Console (TAC) showed that 532 upregulated transcripts were exclusively belonging to cell cycle, inflammation, olfaction, oxidative stress, HER, and EGFR1 while 949 downregulated transcripts were involved in immunology, drug resistance such as histocompatibility, T cell receptors, and immunoglobulins. The differentially expressed genes were considered significant under the criteria of an adjusted p-value < 0.02 and log2 ratios ≥ 1.0 and/or log2 ratios ≤ − 1.0 means two Fold change. qPCR assay and ELISA analysis was used to validate few genes involved in apoptosis and proliferation. This study provides new insights into the neratinib’s mode of action by cyclin-dependent kinase inhibitor-3 and calcium-activated chloride channel 3 as markers for treatment progress.
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Affiliation(s)
- Sara Alkhezayem
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Tanveer A Wani
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Salma Wakil
- Department of Genetics, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Ashwaq Aljuraysi
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Seema Zargar
- Department of Biochemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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The Interplay of Dysregulated pH and Electrolyte Imbalance in Cancer. Cancers (Basel) 2020; 12:cancers12040898. [PMID: 32272658 PMCID: PMC7226178 DOI: 10.3390/cancers12040898] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/01/2020] [Accepted: 04/02/2020] [Indexed: 12/11/2022] Open
Abstract
Cancer cells and tissues have an aberrant regulation of hydrogen ion dynamics driven by a combination of poor vascular perfusion, regional hypoxia, and increased the flux of carbons through fermentative glycolysis. This leads to extracellular acidosis and intracellular alkalinization. Dysregulated pH dynamics influence cancer cell biology, from cell transformation and tumorigenesis to proliferation, local growth, invasion, and metastasis. Moreover, this dysregulated intracellular pH (pHi) drives a metabolic shift to increased aerobic glycolysis and reduced mitochondrial oxidative phosphorylation, referred to as the Warburg effect, or Warburg metabolism, which is a selective feature of cancer. This metabolic reprogramming confers a thermodynamic advantage on cancer cells and tissues by protecting them against oxidative stress, enhancing their resistance to hypoxia, and allowing a rapid conversion of nutrients into biomass to enable cell proliferation. Indeed, most cancers have increased glucose uptake and lactic acid production. Furthermore, cancer cells have very dysregulated electrolyte balances, and in the interaction of the pH dynamics with electrolyte, dynamics is less well known. In this review, we highlight the interconnected roles of dysregulated pH dynamics and electrolytes imbalance in cancer initiation, progression, adaptation, and in determining the programming and reprogramming of tumor cell metabolism.
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25
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Sopjani M, Millaku L, Nebija D, Emini M, Rifati-Nixha A, Dërmaku-Sopjani M. The Glycogen Synthase Kinase-3 in the Regulation of Ion Channels and Cellular Carriers. Curr Med Chem 2020; 26:6817-6829. [PMID: 30306852 DOI: 10.2174/0929867325666181009122452] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 09/19/2018] [Accepted: 09/21/2018] [Indexed: 01/19/2023]
Abstract
Glycogen synthase kinase-3 (GSK-3) is a highly evolutionarily conserved and ubiquitously expressed serine/threonine kinase, an enzyme protein profoundly specific for glycogen synthase (GS). GSK-3 is involved in various cellular functions and physiological processes, including cell proliferation, differentiation, motility, and survival as well as glycogen metabolism, protein synthesis, and apoptosis. There are two isoforms of human GSK-3 (named GSK-3α and GSK-3β) encoded by two distinct genes. Recently, GSK-3β has been reported to function as a powerful regulator of various transport processes across the cell membrane. This kinase, GSK-3β, either directly or indirectly, may stimulate or inhibit many different types of transporter proteins, including ion channel and cellular carriers. More specifically, GSK-3β-sensitive cellular transport regulation involves various calcium, chloride, sodium, and potassium ion channels, as well as a number of Na+-coupled cellular carriers including excitatory amino acid transporters EAAT2, 3 and 4, high-affinity Na+ coupled glucose carriers SGLT1, creatine transporter 1 CreaT1, and the type II sodium/phosphate cotransporter NaPi-IIa. The GSK-3β-dependent cellular transport regulations are a part of the kinase functions in numerous physiological and pathophysiological processes. Clearly, additional studies are required to examine the role of GSK-3β in many other types of cellular transporters as well as further elucidating the underlying mechanisms of GSK-3β-mediated cellular transport regulation.
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Affiliation(s)
- Mentor Sopjani
- Faculty of Medicine, University of Prishtina, 10000 Prishtine, Kosova
| | - Lulzim Millaku
- Faculty of Natural Sciences and Mathematics, University of Prishtina, 10000 Prishtine, Kosova
| | - Dashnor Nebija
- Faculty of Medicine, University of Prishtina, 10000 Prishtine, Kosova
| | - Merita Emini
- Faculty of Medicine, University of Prishtina, 10000 Prishtine, Kosova
| | - Arleta Rifati-Nixha
- Faculty of Natural Sciences and Mathematics, University of Prishtina, 10000 Prishtine, Kosova
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26
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Leblanc N. Role of the CLC-3 Channel Transporter in Angiogenesis by Endothelial Progenitor Cells in Ischemia-Induced Vascular Injury: A Key Passenger or a Driver? Can J Cardiol 2020; 36:154-156. [PMID: 31899019 PMCID: PMC7737665 DOI: 10.1016/j.cjca.2019.10.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 10/13/2019] [Indexed: 10/25/2022] Open
Affiliation(s)
- Normand Leblanc
- University of Nevada, Reno School of Medicine, Reno, Nevada, USA.
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27
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Xu ZZ, Chen QY, Deng SY, Zhang M, Tan CY, Yang Wang, Ma KT, Li L, Si JQ, Zhu LC. 17β-Estradiol Attenuates Neuropathic Pain Caused by Spared Nerve Injury by Upregulating CIC-3 in the Dorsal Root Ganglion of Ovariectomized Rats. Front Neurosci 2019; 13:1205. [PMID: 31787875 PMCID: PMC6856564 DOI: 10.3389/fnins.2019.01205] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 10/24/2019] [Indexed: 12/14/2022] Open
Abstract
17β-estradiol plays a role in pain sensitivity, analgesic drug efficacy, and neuropathic pain prevalence, but the underlying mechanisms remain unclear. Here, we investigated whether voltage-gated chloride channel-3 (ClC-3) impacts the effects of 17β-estradiol (E2) on spared nerve injury (SNI)-induced neuropathic pain in ovariectomized (OVX) female Sprague Dawley rats that were divided into OVX, OVX + SNI, OVX + SNI + E2, OVX + SNI + E2 + DMSO (vehicle, dimethyl sulfoxide), or OVX + SNI + E2+Cltx (ClC-3-blocker chlorotoxin) groups. Changes in ClC-3 protein expression were monitored by western blot analysis. Behavioral testing used the paw withdrawal threshold to acetone irritation and paw withdrawal thermal latency (PWTL) to thermal stimulation. Immunofluorescence indicated the localization and protein expression levels of ClC-3. OVX + SNI + E2 rats were subcutaneously injected with 17β-estradiol once daily for 7 days; a sheathed tube was implanted, and chlorotoxin was injected for 4 days. Intrathecal Cltx to OVX and OVX + SNI rats was administered for 4 consecutive days (days 7–10 after SNI) to further determine the contribution of ClC-3 to neuropathic pain. Patch clamp technology in current clamp mode was used to measure the current threshold (rheobase) dorsal root ganglion (DRG) neurons and the minimal current that evoked action potentials (APs) as excitability parameters. The mean number of APs at double-strength rheobase verified neuronal excitability. There was no difference in behaviors and ClC-3 expression after OVX. Compared with OVX + SNI rats, OVX + SNI + E2 rats showed a lower paw withdrawal threshold to the acetone stimulus, but the PWTL was not significantly different, indicating increased sensitivity to cold but not to thermal pain. Co-immunofluorescent data revealed that ClC-3 was mainly distributed in A- and C-type nociceptive neurons, especially in medium/small-sized neurons. 17β-estradiol administration was associated with increased expression of ClC-3. 17β-estradiol-induced increase in ClC-3 expression was blocked by co-administration of Cltx. Cltx causes hyperalgesia and decreased expression of ClC-3 in OVX rats. Patch clamp results suggested that 17β-estradiol attenuated the excitability of neurons induced by SNI by up-regulating the expression of ClC-3 in the DRG of OVX rats. 17β-estradiol administration significantly improved cold allodynia thresholds in OVX rats with SNI. The mechanism for this decreased sensitivity may be related to the upregulation of ClC-3 expression in the DRG.
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Affiliation(s)
- Zhen-Zhen Xu
- Department of Anesthesiology, First Affiliated Hospital of Shihezi University, Shihezi, China.,Department of Physiology, Shihezi University School of Medicine, Shihezi, China.,Key Laboratory of Xinjiang Endemic and Ethnic Disease, Shihezi University School of Medicine, Shihezi, China.,Department of Anesthesiology, Xiangyang Central Hospital, Hubei University of Arts and Science, Xiangyang, China
| | - Qin-Yi Chen
- Department of Anesthesiology, First Affiliated Hospital of Shihezi University, Shihezi, China.,Department of Physiology, Shihezi University School of Medicine, Shihezi, China.,Key Laboratory of Xinjiang Endemic and Ethnic Disease, Shihezi University School of Medicine, Shihezi, China.,Department of Anesthesiology, Xiangyang Central Hospital, Hubei University of Arts and Science, Xiangyang, China
| | - Shi-Yu Deng
- Department of Anesthesiology, First Affiliated Hospital of Shihezi University, Shihezi, China.,Department of Physiology, Shihezi University School of Medicine, Shihezi, China.,Key Laboratory of Xinjiang Endemic and Ethnic Disease, Shihezi University School of Medicine, Shihezi, China
| | - Meng Zhang
- Department of Anesthesiology, Sichuan Academy of Medical Sciences, Sichuan Provincial People's Hospital, Chengdu, China
| | - Chao-Yang Tan
- Department of Physiology, Shihezi University School of Medicine, Shihezi, China.,Key Laboratory of Xinjiang Endemic and Ethnic Disease, Shihezi University School of Medicine, Shihezi, China
| | - Yang Wang
- Department of Physiology, Shihezi University School of Medicine, Shihezi, China.,Key Laboratory of Xinjiang Endemic and Ethnic Disease, Shihezi University School of Medicine, Shihezi, China
| | - Ke-Tao Ma
- Department of Physiology, Shihezi University School of Medicine, Shihezi, China.,Key Laboratory of Xinjiang Endemic and Ethnic Disease, Shihezi University School of Medicine, Shihezi, China
| | - Li Li
- Department of Physiology, Shihezi University School of Medicine, Shihezi, China.,Key Laboratory of Xinjiang Endemic and Ethnic Disease, Shihezi University School of Medicine, Shihezi, China.,Department of Physiology, Medical College of Jiaxing University, Jiaxing, China
| | - Jun-Qiang Si
- Department of Anesthesiology, First Affiliated Hospital of Shihezi University, Shihezi, China.,Department of Physiology, Shihezi University School of Medicine, Shihezi, China.,Key Laboratory of Xinjiang Endemic and Ethnic Disease, Shihezi University School of Medicine, Shihezi, China.,Department of Physiology, School of Basic Medicine and Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Physiology, School of Basic Medical Sciences, Wuhan University School of Medicine, Wuhan, China
| | - Li-Cang Zhu
- Department of Physiology, Shihezi University School of Medicine, Shihezi, China.,Key Laboratory of Xinjiang Endemic and Ethnic Disease, Shihezi University School of Medicine, Shihezi, China
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28
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Xu X, Xu J, Zhao C, Hou X, Li M, Wang L, Chen L, Chen Y, Zhu L, Yang H. Antitumor effects of disulfiram/copper complex in the poorly-differentiated nasopharyngeal carcinoma cells via activating ClC-3 chloride channel. Biomed Pharmacother 2019; 120:109529. [PMID: 31606620 DOI: 10.1016/j.biopha.2019.109529] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 09/30/2019] [Accepted: 10/01/2019] [Indexed: 12/17/2022] Open
Abstract
The enhancement of the anticancer activity by disulfiram (DSF) chelated with copper (DSF/Cu2+) has been investigated recently, while the underlying molecular mechanisms still need to be fully elucidated. Chloride channel-3 (ClC-3) is over-expressed in a variety of cancers and involves multiple tumor biological events. However, whether the over-expression of ClC-3 in tumor cells affects the sensitivity of anti-tumor drugs remains unclear. Here, we showed that the involvement of ClC-3 chloride channel in the selective cytotoxicity of DSF/Cu2+ in the poorly-differentiated nasopharyngeal carcinoma. The EC50 of DSF alone and DSF/Cu2+ in activating the Cl- channel were 95.36 μM and 0.31 μM in the CNE-2Z cells, respectively. DSF/Cu2+ exhibited a positive correlation between the induction of the Cl- currents and the inhibition of cell proliferation. DSF/Cu2+ increased the ClC-3 protein expression and induced the cell apoptosis. Cl- channel blockers, NPPB and DIDS, and ClC-3 siRNA partially inhibited the cell apoptosis, and depleted the Cl- currents induced by DSF/Cu2+ in CNE-2Z cells. However, these effects could not be observed in the normal nasopharyngeal epithelium NP69-SV40 T cells. In vivo, the transplanted human nasopharyngeal carcinoma tumors size in the DSF/Cu2+ group decreased about 73.2% of those in the solvent control group. The chloride blockers partially inhibited the antitumor action of DSF/Cu2+. These data demonstrated that the selective cytotoxicity of DSF/Cu2+ may relate to its selective activation of ClC-3 Cl- channel pathways in CNE-2Z cells. ClC-3 Cl- channel can be viewed as a new and promising target for the treatment of nasopharyngeal carcinoma.
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Affiliation(s)
- Xiao Xu
- Department of Physiology, School of Medicine, Henan University, Kaifeng, 475000, China; Department of Physiology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Jingkui Xu
- Department of Physiology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Chongyu Zhao
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Xiuying Hou
- Department of Physiology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Mengjia Li
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Liwei Wang
- Department of Physiology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Lixin Chen
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, 510632, China
| | - Yehui Chen
- Department of Urology, Guangzhou First People's Hospital, Guangzhou, 510180, China
| | - Linyan Zhu
- Department of Physiology, School of Medicine, Jinan University, Guangzhou, 510632, China; Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, 510632, China.
| | - Haifeng Yang
- Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, 510120, China.
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29
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Zheng S, Li Y, Jiang J, van der Lee A, Dumitrescu D, Barboiu M. Self‐Assembled Columnar Triazole Quartets: An Example of Synergistic Hydrogen‐Bonding/Anion–π Interactions. Angew Chem Int Ed Engl 2019; 58:12037-12042. [DOI: 10.1002/anie.201904808] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Shao‐Ping Zheng
- Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
- Institut Europeen des MembranesAdaptive Supramolecular Nanosystems GroupUniversity of Montpellier, ENSCM-CNRS Place E. Bataillon CC047 34095 Montpellier France
| | - Yu‐Hao Li
- Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Ji‐Jun Jiang
- Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Arie van der Lee
- Institut Europeen des MembranesAdaptive Supramolecular Nanosystems GroupUniversity of Montpellier, ENSCM-CNRS Place E. Bataillon CC047 34095 Montpellier France
| | - Dan Dumitrescu
- XRD2 beamline, Elettra—Sincrotrone Trieste S.C.p.A. Strada Statale 14—km 163,5 in AREA Science Park 34149 Basovizza Trieste Italy
| | - Mihail Barboiu
- Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
- Institut Europeen des MembranesAdaptive Supramolecular Nanosystems GroupUniversity of Montpellier, ENSCM-CNRS Place E. Bataillon CC047 34095 Montpellier France
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30
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Aung T, Asam C, Haerteis S. Ion channels in sarcoma: pathophysiology and treatment options. Pflugers Arch 2019; 471:1163-1171. [PMID: 31377822 DOI: 10.1007/s00424-019-02299-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 07/22/2019] [Accepted: 07/25/2019] [Indexed: 12/21/2022]
Abstract
Sarcomas are characterized by aggressive growth and a high metastasis potentially leading in most cases to a lethal outcome. These malignant tumors of the connective tissue have a high heterogeneity with numerous genetic mutations resulting in more than 100 types of sarcoma that can be grouped into two main kinds: soft tissue sarcoma and bone sarcoma. Sarcomas are often diagnosed at late disease stage, whereas a guaranteed diagnosis of the sarcoma type is fundamental for successful therapy. However, there is no appropriate therapy available. Therefore, the need for new therapies, which prolong survival and improve quality of life, is high. In the last two decades, the role of ion channels in cancer has emerged. Ion channels seem to be an ideal target for anti-tumor therapies. However, different cancer types have their own altered ion channel pattern, and the knowledge about the tumor-associated ion channel expression is fundamental. Here, we focus on the role of different ion channels in sarcoma, their pathophysiology, and possible treatment options.
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Affiliation(s)
- Thiha Aung
- Abteilung für Plastische, Hand- und Wiederherstellungschirurgie, Universitätsklinikum Regensburg, Regensburg, Germany
| | - Claudia Asam
- Lehrstuhl für Molekulare und Zelluläre Anatomie, Universität Regensburg, 93053, Regensburg, Germany
| | - Silke Haerteis
- Lehrstuhl für Molekulare und Zelluläre Anatomie, Universität Regensburg, 93053, Regensburg, Germany.
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31
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Zheng S, Li Y, Jiang J, van der Lee A, Dumitrescu D, Barboiu M. Self‐Assembled Columnar Triazole Quartets: An Example of Synergistic Hydrogen‐Bonding/Anion–π Interactions. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904808] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shao‐Ping Zheng
- Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
- Institut Europeen des MembranesAdaptive Supramolecular Nanosystems GroupUniversity of Montpellier, ENSCM-CNRS Place E. Bataillon CC047 34095 Montpellier France
| | - Yu‐Hao Li
- Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Ji‐Jun Jiang
- Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
| | - Arie van der Lee
- Institut Europeen des MembranesAdaptive Supramolecular Nanosystems GroupUniversity of Montpellier, ENSCM-CNRS Place E. Bataillon CC047 34095 Montpellier France
| | - Dan Dumitrescu
- XRD2 beamline, Elettra—Sincrotrone Trieste S.C.p.A. Strada Statale 14—km 163,5 in AREA Science Park 34149 Basovizza Trieste Italy
| | - Mihail Barboiu
- Lehn Institute of Functional MaterialsSchool of ChemistrySun Yat-Sen University Guangzhou 510275 China
- Institut Europeen des MembranesAdaptive Supramolecular Nanosystems GroupUniversity of Montpellier, ENSCM-CNRS Place E. Bataillon CC047 34095 Montpellier France
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32
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Deng Z, Li W, Alahdal M, Zhang N, Xie J, Hu X, Chen Y, Fang H, Duan L, Gu L, Wang D. Overexpression of ClC-3 Chloride Channel in Chondrosarcoma: An In Vivo Immunohistochemical Study with Tissue Microarray. Med Sci Monit 2019; 25:5044-5053. [PMID: 31281178 PMCID: PMC6637820 DOI: 10.12659/msm.917382] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Background Recently, ClC-3 chloride channel expression has been noted to be high in some tumors. In chondrosarcoma, which is a malignant tumor with a high incidence in the bone, there has been no previous literature regarding ClC-3 chloride channel expression. Here we evaluated the expression of ClC-3 chloride channel in chondrosarcoma and explored its clinical significance. Material/Methods In this study, 75 chondrosarcoma and 5 normal cartilage tissues were collected. Thereafter, tissue microarray was performed. Immunohistochemistry was also used to observe the level of ClC-3 chloride channel expression between normal and chondrosarcoma tissues. Results Results showed that the expression of ClC-3 chloride channel in the normal chondrocyte was thinner, since it showed distinct differentiation among chondrosarcoma specimens. Interestingly, we noticed that the moderately-differentiated chondrosarcoma (MDC) and the poorly-differentiated chondrosarcoma (PDC) exhibited 94.44% of ClC-3 chloride channel. Besides, the subcellular localization of ClC-3 chloride channel was changed in association with malignant degree changes. The subcellular localization of ClC-3 chloride channel in the MDC and PDC tissue was localized in the cytoplasm and both nucleus and cytoplasm: 83.33% (5 out of 6 cases) and 91.66% (11 out of 12 cases) respectively. On the other hand, we noticed that patient age and gender could have a relation with ClC-3 chloride channel expression; 30- to 60-year-old males showed more expression. Conclusions These results demonstrated a high frequency of ClC-3 chloride channel overexpression and subcellular localization differences in MDC and PDC tissue, suggesting a specific role of ClC-3 chloride channel in the pathogenesis of chondrosarcoma.
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Affiliation(s)
- Zhiqin Deng
- Department of Microsurgery and Orthopedic Trauma, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, Guangdong, China (mainland).,Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen, Guangdong, China (mainland)
| | - Wencui Li
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen, Guangdong, China (mainland)
| | - Murad Alahdal
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen, Guangdong, China (mainland)
| | - Ningfeng Zhang
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen, Guangdong, China (mainland)
| | - Junxiong Xie
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen, Guangdong, China (mainland)
| | - Xiaotian Hu
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen, Guangdong, China (mainland)
| | - Yang Chen
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen, Guangdong, China (mainland)
| | - Huankun Fang
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen, Guangdong, China (mainland)
| | - Li Duan
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen, Guangdong, China (mainland)
| | - Liqiang Gu
- Department of Microsurgery and Orthopedic Trauma, The First Affiliated Hospital of Sun Yat-sen University, Sun Yat-sen University, Guangzhou, Guangdong, China (mainland)
| | - Daping Wang
- Guangdong Provincial Research Center for Artificial Intelligence and Digital Orthopedic Technology, Hand and Foot Surgery Department, Shenzhen Second People's Hospital (The First Hospital Affiliated to Shenzhen University), Shenzhen, Guangdong, China (mainland)
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33
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Chen Q, Liu X, Luo Z, Wang S, Lin J, Xie Z, Li M, Li C, Cao H, Huang Q, Mao J, Xu B. Chloride channel-3 mediates multidrug resistance of cancer by upregulating P-glycoprotein expression. J Cell Physiol 2018; 234:6611-6623. [PMID: 30230544 DOI: 10.1002/jcp.27402] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 08/17/2018] [Indexed: 12/20/2022]
Abstract
Chloride channel-3 (ClC-3), a member of the ClC family of voltage-gated Cl- channels, is involved in the resistance of tumor cells to chemotherapeutic drugs. Here, we report a new mechanism for ClC-3 in mediating multidrug resistance (MDR). ClC-3 was highly expressed in the P-glycoprotein (P-gp)-dependent human lung adenocarcinoma cell line (A549)/paclitaxel (PTX) and the human breast carcinoma cell line (MCF-7)/doxorubicin (DOX) resistant cells. Changes in the ClC-3 expression resulted in the development of drug resistance in formerly drug-sensitive A549 or MCF-7 cells, and drug sensitivity in formerly drug-resistant A549/Taxol and MCF-7/DOX cells. Double transgenic MMTV-PyMT/CLCN3 mice with spontaneous mammary cancer and ClC-3 overexpression demonstrated drug resistance to PTX and DOX. ClC-3 expression upregulated the expression of MDR1 messenger RNA and P-gp by activating the nuclear factor-κB (NF-κB)-signaling pathway. These data suggest that ClC-3 expression in cancer cells induces MDR by upregulating NF-κB-signaling-dependent P-gp expression involving another new mechanism for ClC-3 in the development of drug resistance of cancers.
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Affiliation(s)
- Qi Chen
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Xueqiang Liu
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates and School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - Zhesi Luo
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Shisi Wang
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates and School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jialin Lin
- Guangdong Province Key Laboratory for Biotechnology Drug Candidates and School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
| | - Zheng Xie
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Mengge Li
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Chunmei Li
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan, China
| | - Qingsong Huang
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Jianwen Mao
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou, China
| | - Bin Xu
- Guangdong Provincial Key Laboratory of Pharmaceutical Bioactive Substances and School of Basic Medicine, Guangdong Pharmaceutical University, Guangzhou, China.,Guangdong Province Key Laboratory for Biotechnology Drug Candidates and School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou, China
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34
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Fujimoto M, Kito H, Kajikuri J, Ohya S. Transcriptional repression of human epidermal growth factor receptor 2 by ClC-3 Cl - /H + transporter inhibition in human breast cancer cells. Cancer Sci 2018; 109:2781-2791. [PMID: 29949674 PMCID: PMC6125433 DOI: 10.1111/cas.13715] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 06/23/2018] [Indexed: 12/13/2022] Open
Abstract
Recent studies have indicated that the intracellular concentration of chloride ions (Cl−) regulates gene expression in several types of cells and that Cl− modulators positively or negatively regulate the PI3K/AKT/mammalian target of rapamycin (mTOR) and signal transducer and activator of transcription (STAT)3 signaling pathways. We previously reported that the Ca2+‐activated Cl− channel anoctamine (ANO)1 regulated human epidermal growth factor receptor 2 (HER2) transcription in breast cancer YMB‐1 cells. However, the mechanisms underlying ANO1‐regulated HER2 gene expression have not yet been elucidated. In the present study, we showed the involvement of intracellular organelle ClC‐3 Cl−/H+ transporter in HER2 transcription in breast cancer MDA‐MB‐453 cells. The siRNA‐mediated inhibition of ClC‐3, but not ANO1, markedly repressed HER2 transcription in MDA‐MB‐453 cells. Subsequently, treatments with the AKT inhibitor AZD 5363 and mTOR inhibitor everolimus significantly enhanced HER2 transcription in MDA‐MB‐453 cells, whereas that with the STAT3 inhibitor 5,15‐diphenylporphyrin (5,15‐DPP) inhibited it. AKT and mTOR inhibitors also significantly enhanced HER2 transcription in YMB‐1 cells. The siRNA‐mediated inhibition of ClC‐3 and ANO1 resulted in increased AKT phosphorylation and decreased STAT3 phosphorylation in MDA‐MB‐453 and YMB‐1 cells, respectively. The intracellular Cl− channel protein CLIC1 was expressed in both cells; however, its siRNA‐mediated inhibition did not elicit the transcriptional repression of HER2. Collectively, our results demonstrate that intracellular Cl− regulation by ANO1/ClC‐3 participates in HER2 transcription, mediating the PI3K/AKT/mTOR and/or STAT3 signaling pathway(s) in HER2‐positive breast cancer cells, and support the potential of ANO1/ClC‐3 blockers as therapeutic options for patients with resistance to anti‐HER2 therapies.
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Affiliation(s)
- Mayu Fujimoto
- Department of Pharmacology, Division of Pathological Sciences, Kyoto Pharmaceutical University, Kyoto, Japan
| | - Hiroaki Kito
- Department of Pharmacology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Junko Kajikuri
- Department of Pharmacology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
| | - Susumu Ohya
- Department of Pharmacology, Division of Pathological Sciences, Kyoto Pharmaceutical University, Kyoto, Japan.,Department of Pharmacology, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan
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35
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Wang L, Gao H, Yang X, Liang X, Tan Q, Chen Z, Zhao C, Gu Z, Yu M, Zheng Y, Huang Y, Zhu L, Jacob TJC, Wang L, Chen L. The apoptotic effect of Zoledronic acid on the nasopharyngeal carcinoma cells via ROS mediated chloride channel activation. Clin Exp Pharmacol Physiol 2018; 45:1019-1027. [PMID: 29884989 DOI: 10.1111/1440-1681.12979] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 05/12/2018] [Accepted: 05/29/2018] [Indexed: 01/09/2023]
Abstract
Zoledronic acid (ZA), a third-generation bisphosphonate, has been applied for treatment of bone metastases caused by malignant tumors. Recent studies have found its anti-cancer effects on various tumor cells. One of the mechanisms of anti-cancer effects of ZA is induction of apoptosis. However, the mechanisms of ZA-induced apoptosis in tumor cells have not been clarified clearly. In this study, we investigated the roles of chloride channels in ZA-induced apoptosis in nasopharyngeal carcinoma CNE-2Z cells. Apoptosis and chloride current were induced by ZA and suppressed by chloride channel blockers. After the knockdown of ClC-3 expression by ClC-3 siRNA, ZA-induced chloride current and apoptosis were significantly suppressed, indicating that the chloride channel participated in ZA-induced apoptosis may be ClC-3. When reactive oxygen species (ROS) generation was inhibited by the antioxidant N-acetyl-L-cysteine (L-NAC), ZA-induced apoptosis and chloride current were blocked accordingly, suggesting that ZA induces apoptosis through promoting ROS production and subsequently activating chloride channel.
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Affiliation(s)
- Liang Wang
- Division of Oncology, The First Affiliated Hospital, Jinan University, Guangzhou, China
| | - Hong Gao
- Department of Pharmacology, Medical College, Jinan University, Guangzhou, China
| | - Xiaoya Yang
- Department of Physiology, Medical College, Jinan University, Guangzhou, China.,Department of Physiology, Guangzhou Health Science College, Guangzhou, China
| | - Xiechou Liang
- Department of Physiology, Medical College, Jinan University, Guangzhou, China
| | - Qiuchan Tan
- Department of Physiology, Medical College, Jinan University, Guangzhou, China
| | - Zhanru Chen
- Department of Physiology, Medical College, Jinan University, Guangzhou, China
| | - Chan Zhao
- Department of Physiology, Medical College, Jinan University, Guangzhou, China
| | - Zhuoyu Gu
- Department of Pharmacology, Medical College, Jinan University, Guangzhou, China
| | - Meisheng Yu
- Department of Pharmacology, Medical College, Jinan University, Guangzhou, China
| | - Yanfang Zheng
- Department of Pharmacology, Medical College, Jinan University, Guangzhou, China
| | - Yanqing Huang
- Department of Obstetrics and Gynecology, Guangzhou Women and Children's Medical Center, Guangzhou, China
| | - Linyan Zhu
- Department of Pharmacology, Medical College, Jinan University, Guangzhou, China
| | - Tim J C Jacob
- Cardiff School of Biosciences, Cardiff University, Cardiff, Wales, UK
| | - Liwei Wang
- Department of Physiology, Medical College, Jinan University, Guangzhou, China
| | - Lixin Chen
- Department of Pharmacology, Medical College, Jinan University, Guangzhou, China
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36
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Jentsch TJ, Pusch M. CLC Chloride Channels and Transporters: Structure, Function, Physiology, and Disease. Physiol Rev 2018; 98:1493-1590. [DOI: 10.1152/physrev.00047.2017] [Citation(s) in RCA: 214] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
CLC anion transporters are found in all phyla and form a gene family of eight members in mammals. Two CLC proteins, each of which completely contains an ion translocation parthway, assemble to homo- or heteromeric dimers that sometimes require accessory β-subunits for function. CLC proteins come in two flavors: anion channels and anion/proton exchangers. Structures of these two CLC protein classes are surprisingly similar. Extensive structure-function analysis identified residues involved in ion permeation, anion-proton coupling and gating and led to attractive biophysical models. In mammals, ClC-1, -2, -Ka/-Kb are plasma membrane Cl−channels, whereas ClC-3 through ClC-7 are 2Cl−/H+-exchangers in endolysosomal membranes. Biological roles of CLCs were mostly studied in mammals, but also in plants and model organisms like yeast and Caenorhabditis elegans. CLC Cl−channels have roles in the control of electrical excitability, extra- and intracellular ion homeostasis, and transepithelial transport, whereas anion/proton exchangers influence vesicular ion composition and impinge on endocytosis and lysosomal function. The surprisingly diverse roles of CLCs are highlighted by human and mouse disorders elicited by mutations in their genes. These pathologies include neurodegeneration, leukodystrophy, mental retardation, deafness, blindness, myotonia, hyperaldosteronism, renal salt loss, proteinuria, kidney stones, male infertility, and osteopetrosis. In this review, emphasis is laid on biophysical structure-function analysis and on the cell biological and organismal roles of mammalian CLCs and their role in disease.
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Affiliation(s)
- Thomas J. Jentsch
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) and Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin, Germany; and Istituto di Biofisica, Consiglio Nazionale delle Ricerche, Genova, Italy
| | - Michael Pusch
- Leibniz-Forschungsinstitut für Molekulare Pharmakologie (FMP) and Max-Delbrück-Centrum für Molekulare Medizin (MDC), Berlin, Germany; and Istituto di Biofisica, Consiglio Nazionale delle Ricerche, Genova, Italy
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37
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Zhou FM, Huang YY, Tian T, Li XY, Tang YB. Knockdown of Chloride Channel-3 Inhibits Breast Cancer Growth In Vitro and In Vivo. J Breast Cancer 2018; 21:103-111. [PMID: 29963105 PMCID: PMC6015970 DOI: 10.4048/jbc.2018.21.2.103] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 05/04/2018] [Indexed: 12/11/2022] Open
Abstract
Purpose Chloride channel-3 (ClC-3) is a member of the chloride channel family and plays a critical role in a variety of cellular activities. The aim of the present study is to explore the molecular mechanisms underlying the antitumor effect of silencing ClC-3 in breast cancer. Methods Human breast cancer cell lines MDA-MB-231 and MCF-7 were used in the experiments. Messenger RNA and protein expression were examined by quantitative real-time polymerase chain reaction and western blot analysis. Cell proliferation was measured by the bromodeoxyuridine method, and the cell cycle was evaluated using fluorescence-activated cell sorting. Protein interaction in cells was analyzed by co-immunoprecipitation. Tumor tissues were stained with hematoxylin-eosin and tumor burden was measured using the Metamorph software. Results Breast cancer tissues collected from patients showed an increase in ClC-3 expression. Knockdown of ClC-3 inhibited the secretion of insulin-like growth factor (IGF)-1, cell proliferation, and G1/S transition in breast cancer cells. In the mouse xenograft model of human breast carcinoma, tumor growth was significantly slower in animals injected with ClC-3-deficient cells compared with the growth of normal human breast cancer cells. In addition, silencing of ClC-3 attenuated the expression of proliferating cell nuclear antigen, Ki-67, cyclin D1, and cyclin E, as well as the activation of extracellular signalregulated protein kinases (ERK) 1/2, both in vitro and in vivo. Conclusion Together, our data suggest that upregulation of ClC-3 by IGF-1 contributes to cell proliferation and tumor growth in breast cancer, and ClC-3 deficiency suppresses cell proliferation and tumor growth via the IGF/IGF receptor/ERK pathway.
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Affiliation(s)
- Fang-Min Zhou
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yun-Ying Huang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Department of Pharmacy, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Tian Tian
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Yan Li
- Department of Clinical Pharmacology, The Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yong-Bo Tang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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38
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Zhang Y, Zhou L, Zhang J, Zhang L, Yan X, Su J. Suppression of chloride voltage-gated channel 3 expression increases sensitivity of human glioma U251 cells to cisplatin through lysosomal dysfunction. Oncol Lett 2018; 16:835-842. [PMID: 29963152 PMCID: PMC6019884 DOI: 10.3892/ol.2018.8736] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 05/03/2018] [Indexed: 11/05/2022] Open
Abstract
The mechanism of cisplatin resistance is complex. Previous studies have indicated that chloride voltage-gated channel 3 (CLCN3) is associated with drug resistance; however, the mechanisms are not fully understood. Therefore, the present study explored the involvement of CLCN3 in cisplatin resistance in human glioma U251 cells. The effects of combined cisplatin treatment and CLCN3 suppression on cultured U251 cells were investigated. The decreased viability of cisplatin-treated U251 cells indicated the cytotoxic effects of CLCN3 silencing. Expression of the apoptosis-related gene TP53 and caspase 3 activation were enhanced in cisplatin-treated U251 cells. Furthermore, the ratio of BCL2/BAX expression was decreased. Notably, CLCN3 suppression promoted cisplatin-induced cell damage in U251 cells. Thus, the combined use of cisplatin and CLCN3 antisense had additive effects in U251 cells. In addition, the present results indicated that CLCN3 suppression decreased lysosome stabilization in U251 cells treated with cisplatin. To conclude, the present results indicated that CLCN3 suppression can sensitize glioma cells to cisplatin through lysosomal dysfunction.
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Affiliation(s)
- Yihe Zhang
- Department of Pathophysiology, Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China.,Department of Neurology, The First Bethune Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Lei Zhou
- Department of Pathology, Affiliated Hospital to Changchun University of Chinese Medicine, Changchun, Jilin 130021, P.R. China
| | - Juanjuan Zhang
- Department of Pathophysiology, Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Lichao Zhang
- Department of Pathophysiology, Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xiaoyu Yan
- Department of Pathophysiology, Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
| | - Jing Su
- Department of Pathophysiology, Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun, Jilin 130021, P.R. China
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39
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Peng J, Chen W, Chen J, Yuan Y, Zhang J, He Y. Overexpression of chloride channel-3 predicts unfavorable prognosis and promotes cellular invasion in gastric cancer. Cancer Manag Res 2018; 10:1163-1175. [PMID: 29795988 PMCID: PMC5958948 DOI: 10.2147/cmar.s159790] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Chloride channel-3 (CLC-3) has been reported to promote the proliferation and invasion in various tumors, yet little is known about its role in gastric cancer. In the present study, we investigated the clinical significance of CLC-3 and its biological role in gastric cancer. METHODS Bioinformatic analysis, immunohistochemical staining, quantitative real-time polymerase chain reaction and Western blot assay were used to assess the expression of CLC-3 and its clinical significance in gastric cancer. The biological role of CLC-3 and its underlying mechanism were detected through in vitro experiments. RESULTS CLC-3 was highly expressed in gastric cancer tissues and cell lines, and high levels of CLC-3 were significantly associated with adverse clinicopathological parameters and shorter overall survival time in patients with gastric cancer. Functional studies revealed that silencing of CLC-3 decreased, while overexpression promoted, the proliferation, migration and invasion of gastric cancer cells in vitro. Mechanistic studies suggested that canonical TGF-β/Smad signaling pathway is involved in CLC-3-induced gastric cancer cells proliferation, migration and invasion. CONCLUSION These findings indicate the vital role of CLC-3 in gastric cancer progression and its potential role of a therapeutic target for treatment.
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Affiliation(s)
- Jianjun Peng
- Gastrointestinal Surgical Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wei Chen
- Gastrointestinal Surgical Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jianhui Chen
- Gastrointestinal Surgical Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yujie Yuan
- Gastrointestinal Surgical Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jian Zhang
- Gastrointestinal Surgical Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yulong He
- Gastrointestinal Surgical Center, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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40
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Wang B, Xie J, He HY, Huang EW, Cao QH, Luo L, Liao YS, Guo Y. Suppression of CLC-3 chloride channel reduces the aggressiveness of glioma through inhibiting nuclear factor-κB pathway. Oncotarget 2017; 8:63788-63798. [PMID: 28969029 PMCID: PMC5609961 DOI: 10.18632/oncotarget.19093] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 05/06/2017] [Indexed: 11/25/2022] Open
Abstract
CLC-3 chloride channel plays important roles on cell volume regulation, proliferation and migration in normal and cancer cells. Recent growing evidence supports a critical role of CLC-3 in glioma metastasis, however, the mechanism underlying is unclear. This study finds that CLC-3 is upregulated in glioma tissues and positively correlated with WHO histological grade. Patients with high CLC-3 expression had an overall shorter survival time, whereas patients with low expression of CLC-3 had a better survival time. Silencing endogenous CLC-3 with ShCLC-3 adenovirus significantly decreases volume-regulated chloride currents, inhibits the nuclear translocation of p65 subunit of Nuclear Factor-κB (NF-κB), decreases transcriptional activity of NF-κB, reduces MMP-3 and MMP-9 expression and decreases glioma cell migration and invasion. Taken together, these results suggest CLC-3 promotes the aggressiveness of glioma at least in part through nuclear factor-κB pathway, and might be a novel prognostic biomarker and therapeutic target for glioma.
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Affiliation(s)
- Bing Wang
- Department of Neurosurgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.,Department of Neurosurgery, The Second Affiliated Hospital, University of South China, Hengyang, China
| | - Jing Xie
- Department of Integrative Oncology, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Hai-Yong He
- Department of Neurosurgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - En-Wen Huang
- Faculty of Forensic Medicine, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Qing-Hua Cao
- Department of Pathology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Lun Luo
- Department of Neurosurgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yong-Shi Liao
- Department of Neurosurgery, The Second Affiliated Hospital, University of South China, Hengyang, China
| | - Ying Guo
- Department of Neurosurgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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41
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Yang H, Ma L, Wang Y, Zuo W, Li B, Yang Y, Chen Y, Chen L, Wang L, Zhu L. Activation of ClC-3 chloride channel by 17β-estradiol relies on the estrogen receptor α expression in breast cancer. J Cell Physiol 2017; 233:1071-1081. [PMID: 28419445 DOI: 10.1002/jcp.25963] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 04/14/2017] [Indexed: 11/11/2022]
Abstract
Although extensively studied, the mechanisms by which estrogen promotes breast cancer growth remain to be fully elucidated. Tamoxifen, an antiestrogen agent to treat ERα+ breast cancer, is also a high-affinity blocker of the chloride channels. In this study, we explored the involvement of the chloride channels in the action of estrogen in breast cancer. We found that 17β-estradiol (17β-E2) concentration-dependently activated the chloride currents in ERα+ breast cancer MCF-7 cells. Extracellular hypertonic challenge and chloride channel blockers, NPPB and DIDS inhibited the 17β-E2-activated chloride currents. Decreased the ClC-3 protein expression caused the depletion of the 17β-E2-activated chloride currents. 17β-E2-activated chloride currents which relied on the ERα expression were demonstrated by the following evidences. Firstly, 17β-E2-activated chloride currents could not be observed in ERα- breast cancer MDA-MB-231 cells. Secondly, ER antagonists, tamoxifen and ICI 182,780, and downregulation of ERα expression inhibited or abolished the 17β-E2-activated chloride currents. Thirdly, ERα expression was induced in MDA-MB-231 cells by ESR1 gene transfection, and then 17β-E2-activated chloride currents could be observed. In MCF-7 cells, ERα and ClC-3 mainly located in nucleus and translocated to cell plasma and membrane with respect to co-localization following treatment of 17β-E2. Downregulation of ERα expression could decrease the expression of ClC-3 protein. Conversely, downregulation of ClC-3 expression did not influence the ERα expression. Taken together, our findings demonstrated that ClC-3 is a potential target of 17β-E2 and is modulated by the ERα in breast cancer cell. Pharmacological modulation of ClC-3 may provide a deep understanding in antiestrogen treatment of breast cancer patients.
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Affiliation(s)
- Haifeng Yang
- Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China
| | - Lianshun Ma
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, China.,Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Yawei Wang
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, China
| | - Wanhong Zuo
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, China
| | - Bingxue Li
- Department of Physiology, School of Medicine, Jinan University, Guangzhou, China
| | - Yaping Yang
- Analysis and Test Center, Jinan University, Guangzhou, China
| | - Yehui Chen
- Department of Urology, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Lixin Chen
- Department of Pathology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China
| | - Liwei Wang
- Department of Physiology, School of Medicine, Jinan University, Guangzhou, China
| | - Linyan Zhu
- Department of Pharmacology, School of Medicine, Jinan University, Guangzhou, China
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42
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Shinde SV, Talukdar P. A Dimeric Bis(melamine)-Substituted Bispidine for Efficient Transmembrane H+/Cl−Cotransport. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700803] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Sopan Valiba Shinde
- Department of Chemistry; Indian Institute of Science Education and Research Pune; Dr. Homi Bhabha Road, Pashan Pune 411008 Maharashtra India
| | - Pinaki Talukdar
- Department of Chemistry; Indian Institute of Science Education and Research Pune; Dr. Homi Bhabha Road, Pashan Pune 411008 Maharashtra India
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43
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Shinde SV, Talukdar P. A Dimeric Bis(melamine)-Substituted Bispidine for Efficient Transmembrane H+/Cl−Cotransport. Angew Chem Int Ed Engl 2017; 56:4238-4242. [DOI: 10.1002/anie.201700803] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Sopan Valiba Shinde
- Department of Chemistry; Indian Institute of Science Education and Research Pune; Dr. Homi Bhabha Road, Pashan Pune 411008 Maharashtra India
| | - Pinaki Talukdar
- Department of Chemistry; Indian Institute of Science Education and Research Pune; Dr. Homi Bhabha Road, Pashan Pune 411008 Maharashtra India
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44
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Saha T, Gautam A, Mukherjee A, Lahiri M, Talukdar P. Chloride Transport through Supramolecular Barrel-Rosette Ion Channels: Lipophilic Control and Apoptosis-Inducing Activity. J Am Chem Soc 2016; 138:16443-16451. [DOI: 10.1021/jacs.6b10379] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Tanmoy Saha
- Department
of Chemistry and ‡Department of Biology, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Amitosh Gautam
- Department
of Chemistry and ‡Department of Biology, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Arnab Mukherjee
- Department
of Chemistry and ‡Department of Biology, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Mayurika Lahiri
- Department
of Chemistry and ‡Department of Biology, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
| | - Pinaki Talukdar
- Department
of Chemistry and ‡Department of Biology, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune, Maharashtra 411008, India
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45
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Fujimoto M, Inoue T, Kito H, Niwa S, Suzuki T, Muraki K, Ohya S. Transcriptional repression of HER2 by ANO1 Cl - channel inhibition in human breast cancer cells with resistance to trastuzumab. Biochem Biophys Res Commun 2016; 482:188-194. [PMID: 27838298 DOI: 10.1016/j.bbrc.2016.11.033] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 11/07/2016] [Indexed: 01/16/2023]
Abstract
The Ca2+-activated Cl- channel ANO1 contributes to tumorigenesis and metastasis in several carcinomas including breast cancer (BCA). Cl- channels have recently been attracting attention as 'transcriptional modulators'. Human epidermal growth factor receptor 2 (HER2) is overexpressed in approximately 30% of patients with BCA, and anti-HER2 monoclonal antibodies such as trastuzumab have emerged as a treatment for metastatic BCA. Among the seven human BCA cell lines examined in the present study, MDA-MB-453 and YMB-1 cells were HER2-positive; however, YMB-1 cell viability showed resistance to trastuzumab. Whole-cell patch-clamp configurations indicated that ANO1 was the main Cl- conductance in YMB-1 cells, and the pharmacological and siRNA-mediated inhibition of ANO1 significantly prevented HER2 transcription in YMB-1 cells. The expression levels of insulin-like growth factor-binding protein 5 (IGFBP5), which is a risk factor for BCA recurrence and metastasis, was not affected by the inhibition of ANO1 in YMB-1 cells. These results suggest that ANO1 Cl- channels may function as a transcriptional regulator of HER2, and ANO1 inhibitors have potential in the treatment of BCA patients with resistance to HER2-targeted therapy.
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Affiliation(s)
- Mayu Fujimoto
- Department of Pharmacology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Takahiro Inoue
- Department of Pharmacology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Hiroaki Kito
- Department of Pharmacology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Satomi Niwa
- Department of Pharmacology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan
| | - Takayoshi Suzuki
- Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto 603-8334, Japan
| | - Katsuhiko Muraki
- Laboratory of Cellular Pharmacology, School of Pharmacy, Aichi-Gakuin University, Nagoya 464-8650, Japan
| | - Susumu Ohya
- Department of Pharmacology, Kyoto Pharmaceutical University, Kyoto 607-8414, Japan.
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The AQP-3 water channel is a pivotal modulator of glycerol-induced chloride channel activation in nasopharyngeal carcinoma cells. Int J Biochem Cell Biol 2016; 72:89-99. [PMID: 26794461 DOI: 10.1016/j.biocel.2016.01.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2015] [Revised: 01/11/2016] [Accepted: 01/15/2016] [Indexed: 11/22/2022]
Abstract
Aquaporin (AQP) and chloride channels are ubiquitous in virtually all living cells, playing pivotal roles in cell proliferation, migration and apoptosis. We previously reported that AQP-3 aquaglyceroporin and ClC-3 chloride channels could form complexes to regulate cell volume in nasopharyngeal carcinoma cells. In this study, the roles of AQP-3 in their hetero-complexes were further investigated. Glycerol entered the cells via AQP-3 and induced two different Cl(-) currents through cell swelling-dependent or -independent pathways. The swelling-dependent Cl(-) current was significantly inhibited by pretreatment with CuCl2 and AQP-3-siRNA. After siRNA-induced AQP-3 knock-down, the 140 mM glycerol isoosmotic solution swelled cells by 22% (45% in AQP-3-intact cells) and induced a smaller Cl(-) current; this current was smaller than that activated by 8% cell volume swelling, which induced by the 140 mM glycerol hyperosmotic solution in AQP-3-intact cells. This suggests that the interaction between AQP-3 and ClC-3 plays an important role in cell volume regulation and that AQP-3 may be a modulator that opens volume-regulated chloride channels. The swelling-independent Cl(-) current, which was activated by extracellular glycerol, was reduced by CuCl2 and AQP-3-siRNA pretreatment. Dialyzing glycerol into cells via the pipette directly induced the swelling-independent Cl(-) current; however this current was blocked by AQP-3 down-regulation, suggesting AQP-3 is essential for the opening of chloride channels. In conclusion, AQP-3 is the pathway for water, glycerol and other small solutes to enter cells, and it may be an essential modulator for the gating of chloride channels.
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47
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Chigaev A. Does aberrant membrane transport contribute to poor outcome in adult acute myeloid leukemia? Front Pharmacol 2015; 6:134. [PMID: 26191006 PMCID: PMC4489100 DOI: 10.3389/fphar.2015.00134] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 06/15/2015] [Indexed: 12/31/2022] Open
Abstract
Acute myeloid leukemia in adults is a highly heterogeneous disease. Gene expression profiling performed using unsupervised algorithms can be used to distinguish specific groups of patients within a large patient cohort. The identified gene expression signatures can offer insights into underlying physiological mechanisms of disease pathogenesis. Here, the analysis of several related gene expression clusters associated with poor outcome, worst overall survival and highest rates of resistant disease and obtained from the patients at the time of diagnosis or from previously untreated individuals is presented. Surprisingly, these gene clusters appear to be enriched for genes corresponding to proteins involved in transport across membranes (transporters, carriers and channels). Several ideas describing the possible relationship of membrane transport activity and leukemic cell biology, including the "Warburg effect," the specific role of chloride ion transport, direct "import" of metabolic energy through uptake of creatine phosphate, and modification of the bone marrow niche microenvironment are discussed.
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Affiliation(s)
- Alexandre Chigaev
- Department of Pathology and Cancer Center, University of New Mexico Health Sciences Center, University of New Mexico Albuquerque, NM, USA
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Rao VR, Perez-Neut M, Kaja S, Gentile S. Voltage-gated ion channels in cancer cell proliferation. Cancers (Basel) 2015; 7:849-75. [PMID: 26010603 PMCID: PMC4491688 DOI: 10.3390/cancers7020813] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 05/12/2015] [Indexed: 12/22/2022] Open
Abstract
Changes of the electrical charges across the surface cell membrane are absolutely necessary to maintain cellular homeostasis in physiological as well as in pathological conditions. The opening of ion channels alter the charge distribution across the surface membrane as they allow the diffusion of ions such as K+, Ca++, Cl.
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Affiliation(s)
- Vidhya R Rao
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago 2160 S. 1s tAve, Maywood, IL 60153, USA.
| | - Mathew Perez-Neut
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago 2160 S. 1s tAve, Maywood, IL 60153, USA.
| | - Simon Kaja
- Department of Ophthalmology and Vision Research Center, School of Medicine, University of Missouri-Kansas City, 2411 Holmes St., Kansas City, MO 64108, USA.
| | - Saverio Gentile
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago 2160 S. 1s tAve, Maywood, IL 60153, USA.
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