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Shrivastava A, Kumar A, Aggarwal LM, Pradhan S, Choudhary S, Ashish A, Kashyap K, Mishra S. Evolution of Bioelectric Membrane Potentials: Implications in Cancer Pathogenesis and Therapeutic Strategies. J Membr Biol 2024:10.1007/s00232-024-00323-2. [PMID: 39183198 DOI: 10.1007/s00232-024-00323-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 08/16/2024] [Indexed: 08/27/2024]
Abstract
Electrophysiology typically deals with the electrical properties of excitable cells like neurons and muscles. However, all other cells (non-excitable) also possess bioelectric membrane potentials for intracellular and extracellular communications. These membrane potentials are generated by different ions present in fluids available in and outside the cell, playing a vital role in communication and coordination between the cell and its organelles. Bioelectric membrane potential variations disturb cellular ionic homeostasis and are characteristic of many diseases, including cancers. A rapidly increasing interest has emerged in sorting out the electrophysiology of cancer cells. Compared to healthy cells, the distinct electrical properties exhibited by cancer cells offer a unique way of understanding cancer development, migration, and progression. Decoding the altered bioelectric signals influenced by fluctuating electric fields benefits understanding cancer more closely. While cancer research has predominantly focussed on genetic and molecular traits, the delicate area of electrophysiological characteristics has increasingly gained prominence. This review explores the historical exploration of electrophysiology in the context of cancer cells, shedding light on how alterations in bioelectric membrane potentials, mediated by ion channels and gap junctions, contribute to the pathophysiology of cancer.
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Affiliation(s)
- Anju Shrivastava
- Department of Physiology, Chhattisgarh Institute of Medical Sciences, Bilaspur, India.
| | - Amit Kumar
- Department of Anatomy, Chhattisgarh Institute of Medical Sciences, Bilaspur, India
| | - Lalit Mohan Aggarwal
- Radiotherapy and Radiation Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Satyajit Pradhan
- Radiation Oncology, Mahamana Pandit Madhan Mohan Malaviya Cancer Centre, Varanasi, India
| | - Sunil Choudhary
- Radiotherapy and Radiation Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Ashish Ashish
- Department of Anatomy, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Keshav Kashyap
- Department of Physiology, Chhattisgarh Institute of Medical Sciences, Bilaspur, India
| | - Shivani Mishra
- Department of Anatomy, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
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Singh A, Choudhury SD, Singh P, Singh VV, Singh SN, Sharma A. Ionic reverberation modulates the cellular fate of CD8 +tissue resident memory T cells (TRMs) in patients with renal cell carcinoma: A novel mechanism. Clin Immunol 2024; 264:110256. [PMID: 38762062 DOI: 10.1016/j.clim.2024.110256] [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: 03/02/2024] [Revised: 05/02/2024] [Accepted: 05/14/2024] [Indexed: 05/20/2024]
Abstract
In metastatic renal cell carcinoma (mRCC), existing treatments including checkpoint inhibitors are failed to cure and/or prevent recurrence of the disease. Therefore, in-depth understanding of tumor tissue resident memory T cells (TRMs) dysfunction are necessitated to enrich efficacy of immunotherapies and increasing disease free survival in treated patients. In patients, we observed dysregulation of K+, Ca2+, Na2+ and Zn2+ ion channels leads to excess infiltration of their respective ions in tumor TRMs, thus ionic gradients are disturbed and cells became hyperpolarized. Moreover, overloaded intramitochondrial calcium caused mitochondrial depolarization and trigger apoptosis of tumor TRMs. Decreased prevalence of activated tumor TRMs reflected our observations. Furthermore, disruptions in ionic concentrations impaired the functional activities and/or suppressed anti-tumor action of circulating and tumor TRMs in RCC. Collectively, these findings revealed novel mechanism behind dysfunctionality of tumor TRMs. Implicating enrichment of activated TRMs within tumor would be beneficial for better management of RCC patients.
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Affiliation(s)
- Ashu Singh
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Saumitra Dey Choudhury
- Central core Research facility, All India Institute of Medical Sciences, New Delhi, India
| | - Prabhjot Singh
- Department of Urology, All India Institute of Medical Sciences, New Delhi, India
| | | | - Som Nath Singh
- Defence Institute of Physiology and Allied Sciences, New Delhi, India
| | - Alpana Sharma
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India.
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Zhu T, Zhao J, Liu J, Tian S, Li S, Yuan H. Advances in the role of ion channels in leukemia. Heliyon 2024; 10:e33452. [PMID: 39027429 PMCID: PMC11254732 DOI: 10.1016/j.heliyon.2024.e33452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 06/20/2024] [Accepted: 06/21/2024] [Indexed: 07/20/2024] Open
Abstract
Ion channels are widely present in cell membranes, serving as crucial pathways for the movement of ions enter and exit cells. Variations in the expression of ion channels are crucial for regulating cellular functions. Among the genes associated with leukemia, certain genes encode ion channels. When these ion channels experience dysfunction or changes in expression, they can impact the physiological functions and signal transduction of hematopoietic cells, thereby regulating leukemia cell proliferation, differentiation, invasion/migration, and apoptosis. This article will provide a comprehensive review of the research progress on the expression and function of various ion channels in leukemia, thoroughly exploring their roles and mechanisms in the onset and progression of the disease, providing new insights and ideas for identifying potential biomarkers and developing new treatment methods for leukemia, thereby promoting innovations in future leukemia diagnosis and therapy.
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Affiliation(s)
- Tianjie Zhu
- Central Hospital of Dalian University of Technology, Dalian, China
| | - Jingyuan Zhao
- Central Hospital of Dalian University of Technology, Dalian, China
| | - Jinnan Liu
- Central Hospital of Dalian University of Technology, Dalian, China
| | - Siyu Tian
- Central Hospital of Dalian University of Technology, Dalian, China
| | - Shuai Li
- Department of Pharmacy, The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Hong Yuan
- Central Hospital of Dalian University of Technology, Dalian, China
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Cheng S, Jiang D, Lan X, Liu K, Fan C. Voltage-gated potassium channel 1.3: A promising molecular target in multiple disease therapy. Biomed Pharmacother 2024; 175:116651. [PMID: 38692062 DOI: 10.1016/j.biopha.2024.116651] [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: 02/20/2024] [Revised: 04/21/2024] [Accepted: 04/24/2024] [Indexed: 05/03/2024] Open
Abstract
Voltage-gated potassium channel 1.3 (Kv1.3) has emerged as a pivotal player in numerous biological processes and pathological conditions, sparking considerable interest as a potential therapeutic target across various diseases. In this review, we present a comprehensive examination of Kv1.3 channels, highlighting their fundamental characteristics and recent advancements in utilizing Kv1.3 inhibitors for treating autoimmune disorders, neuroinflammation, and cancers. Notably, Kv1.3 is prominently expressed in immune cells and implicated in immune responses and inflammation associated with autoimmune diseases and chronic inflammatory conditions. Moreover, its aberrant expression in certain tumors underscores its role in cancer progression. While preclinical studies have demonstrated the efficacy of Kv1.3 inhibitors, their clinical translation remains pending. Molecular imaging techniques offer promising avenues for tracking Kv1.3 inhibitors and assessing their therapeutic efficacy, thereby facilitating their development and clinical application. Challenges and future directions in Kv1.3 inhibitor research are also discussed, emphasizing the significant potential of targeting Kv1.3 as a promising therapeutic strategy across a spectrum of diseases.
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Affiliation(s)
- Sixuan Cheng
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Dawei Jiang
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Xiaoli Lan
- Department of Nuclear Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Key Laboratory of Molecular Imaging, Wuhan 430022, China
| | - Kun Liu
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Cheng Fan
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Zhu JZ, Li P, Zhang Z, Li XG, Zhong J. The CfKOB1 gene related to cell apoptosis is required for pathogenicity and involved in mycovirus-induced hypovirulence in Colletotrichum fructicola. Int J Biol Macromol 2024; 271:132437. [PMID: 38761910 DOI: 10.1016/j.ijbiomac.2024.132437] [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: 04/02/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 05/20/2024]
Abstract
Colletotrichum fructicola is a globally significant phytopathogenic fungus. Mycovirus-induced hypovirulence has great potential for biological control and study of fungal pathogenic mechanisms. We previously reported that the mycovirus Colletotrichum alienum partitivirus 1 (CaPV1) is associated with the hypovirulence of C. fructicola, and the present study aimed to further investigate a host factor and its roles in mycovirus-induced hypovirulence. A gene named CfKOB1, which encodes putative protein homologous to the β-subunit of voltage-gated potassium channels and aldo-keto reductase, is downregulated upon CaPV1 infection and significantly upregulated during the early infection phase of Nicotiana benthamiana by C. fructicola. Deleting the CfKOB1 gene resulted in diminished vegetative growth, decreased production of asexual spores, hindered appressorium formation, reduced virulence, and altered tolerance to abiotic stresses. Transcriptome analysis revealed that CfKOB1 regulates many metabolic pathways as well as the cell cycle and apoptosis. Furthermore, enhanced apoptosis was observed in the ΔCfKOB1 mutants. Viral RNA accumulation was significantly increased in the CfKOB1 deletion mutant. Additionally, our findings demonstrated that CaPV1 infection in the WT strain also induced cell apoptosis. Collectively, these results highlight the diverse biological roles of the CfKOB1 gene in the fungus C. fructicola, while it also participates in mycovirus-induced hypovirulence by regulating apoptosis.
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Affiliation(s)
- Jun Zi Zhu
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha City, Hunan Province 410128, PR China
| | - Ping Li
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha City, Hunan Province 410128, PR China
| | - Zhuo Zhang
- Institute of Plant Protection, Hunan Academy of Agricultural Sciences, Changsha City, Hunan Province 410125, PR China
| | - Xiao Gang Li
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha City, Hunan Province 410128, PR China.
| | - Jie Zhong
- Hunan Provincial Key Laboratory for Biology and Control of Plant Diseases and Insect Pests, Hunan Agricultural University, Changsha City, Hunan Province 410128, PR China.
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Sim HJ, Kim MR, Song MS, Lee SY. Kv3.4 regulates cell migration and invasion through TGF-β-induced epithelial-mesenchymal transition in A549 cells. Sci Rep 2024; 14:2309. [PMID: 38280903 PMCID: PMC10821870 DOI: 10.1038/s41598-024-52739-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 01/23/2024] [Indexed: 01/29/2024] Open
Abstract
Epithelial-mesenchymal transition (EMT) is the process by which epithelial cells acquire mesenchymal characteristics. This process induces cell migration and invasion, which are closely related to cancer metastasis and malignancy. EMT consists of various intermediate states that express both epithelial and mesenchymal traits, called partial EMT. Recently, several studies have focused on the roles of voltage-gated potassium (Kv) channels associated with EMT in cancer cell migration and invasion. In this study, we demonstrate the relationship between Kv3.4 and EMT and confirm the effects of cell migration and invasion. With TGF-β treatment, EMT was induced and Kv3.4 was also increased in A549 cells, human lung carcinoma cells. The knockdown of Kv3.4 blocked the EMT progression reducing cell migration and invasion. However, the Kv3.4 overexpressed cells acquired mesenchymal characteristics and increased cell migration and invasion. The overexpression of Kv3.4 also has a synergistic effect with TGF-β in promoting cell migration. Therefore, we conclude that Kv3.4 regulates cancer migration and invasion through TGF-β-induced EMT and these results provide insights into the understanding of cancer metastasis.
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Affiliation(s)
- Hun Ju Sim
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea
| | - Mi Ri Kim
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea
| | - Min Seok Song
- Department of Physiology, College of Medicine, Gyeongsang National University, Jinju, 52727, Korea
| | - So Yeong Lee
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, 08826, Korea.
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Uppalapati SS, Guha L, Kumar H, Mandoli A. Nanotechnological Advancements for the Theranostic Intervention in Anaplastic Thyroid Cancer: Current Perspectives and Future Direction. Curr Cancer Drug Targets 2024; 24:245-270. [PMID: 37424349 DOI: 10.2174/1568009623666230707155145] [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: 04/12/2023] [Revised: 05/30/2023] [Accepted: 06/08/2023] [Indexed: 07/11/2023]
Abstract
Anaplastic thyroid cancer is the rarest, most aggressive, and undifferentiated class of thyroid cancer, accounting for nearly forty percent of all thyroid cancer-related deaths. It is caused by alterations in many cellular pathways like MAPK, PI3K/AKT/mTOR, ALK, Wnt activation, and TP53 inactivation. Although many treatment strategies, such as radiation therapy and chemotherapy, have been proposed to treat anaplastic thyroid carcinoma, they are usually accompanied by concerns such as resistance, which may lead to the lethality of the patient. The emerging nanotechnology-based approaches cater the purposes such as targeted drug delivery and modulation in drug release patterns based on internal or external stimuli, leading to an increase in drug concentration at the site of the action that gives the required therapeutic action as well as modulation in diagnostic intervention with the help of dye property materials. Nanotechnological platforms like liposomes, micelles, dendrimers, exosomes, and various nanoparticles are available and are of high research interest for therapeutic intervention in anaplastic thyroid cancer. The pro gression of the disease can also be traced by using magnetic probes or radio-labeled probes and quantum dots that serve as a diagnostic intervention in anaplastic thyroid cancer.
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Affiliation(s)
- Sai Swetha Uppalapati
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Ahmedabad, India
| | - Lahanya Guha
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Ahmedabad, India
| | - Hemant Kumar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Ahmedabad, India
| | - Amit Mandoli
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research, Ahmedabad, India
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Furutani K. Facilitation of hERG Activation by Its Blocker: A Mechanism to Reduce Drug-Induced Proarrhythmic Risk. Int J Mol Sci 2023; 24:16261. [PMID: 38003453 PMCID: PMC10671758 DOI: 10.3390/ijms242216261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/08/2023] [Accepted: 11/12/2023] [Indexed: 11/26/2023] Open
Abstract
Modulation of the human Ether-à-go-go-Related Gene (hERG) channel, a crucial voltage-gated potassium channel in the repolarization of action potentials in ventricular myocytes of the heart, has significant implications on cardiac electrophysiology and can be either antiarrhythmic or proarrhythmic. For example, hERG channel blockade is a leading cause of long QT syndrome and potentially life-threatening arrhythmias, such as torsades de pointes. Conversely, hERG channel blockade is the mechanism of action of Class III antiarrhythmic agents in terminating ventricular tachycardia and fibrillation. In recent years, it has been recognized that less proarrhythmic hERG blockers with clinical potential or Class III antiarrhythmic agents exhibit, in addition to their hERG-blocking activity, a second action that facilitates the voltage-dependent activation of the hERG channel. This facilitation is believed to reduce the proarrhythmic potential by supporting the final repolarizing of action potentials. This review covers the pharmacological characteristics of hERG blockers/facilitators, the molecular mechanisms underlying facilitation, and their clinical significance, as well as unresolved issues and requirements for research in the fields of ion channel pharmacology and drug-induced arrhythmias.
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Affiliation(s)
- Kazuharu Furutani
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, Tokushima Bunri University, 180 Nishihama-Boji, Yamashiro-cho, Tokushima 770-8514, Japan
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Zhou H, Su D, Chen Y, Zhang Y, Huang P. KCND2: A prognostic biomarker and regulator of immune function in gastric cancer. Cancer Med 2023; 12:16279-16294. [PMID: 37347147 PMCID: PMC10469724 DOI: 10.1002/cam4.6236] [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: 03/28/2023] [Revised: 05/10/2023] [Accepted: 05/14/2023] [Indexed: 06/23/2023] Open
Abstract
BACKGROUND Gastric cancer is a highly heterogeneous disease, which makes it challenging to develop effective targeted therapies. Although the potassium voltage-gated channel subfamily D (KCND) channels, particularly KCND2 (also known as Kv4.2), have found evidence of involvement in the occurrence and development of various cancers, there are still some limitations in our understanding of KCND2's roles in gastric cancer. METHODS We analyzed the correlation between KCND2 expression and clinical features as well as immune infiltration using the Cancer Genome Atlas (TCGA) database. Functional assays of KCND2 were conducted using Cell counting Kit-8 (CCK8), clone formation assay and cell cycle analysis. Additionally, immunofluorescence, flow cytometry and quantitative real-time polymerase chain reaction (qRT-PCR) techniques were used to investigate tumor proliferation and immune cell infiltration at different levels of KCND2 expression in vivo. RESULTS KCND2 was markedly elevated in gastric cancer and its expression appeared to link to different grades, T stages, and N stages. In addition, KCND2 was an independent predictor of prognosis, and its elevated levels in TCGA database revealed a more unfavorable prognosis for patients with gastric cancer. KCND2 strengthened the viability at the cellular level by boosting the proliferation of gastric cancer cells and reducing their death rate. Additionally, it also highlights that KCND2 the abilities of proliferating of gastric cancer cells by stimulating NF-κB both in cell and animal levels. In addition, the findings provided proof that in animal levels, KCND2 might regulate the immune system by associating with promoting M2 macrophages, which are known to play critical roles in cancer progression. Mechanistically, KCND2 was found to lead to the infiltration of M2 macrophages through activation of NF-κB, ultimately promoting the advancement of gastric cancer. CONCLUSION Overall, these findings suggest that KCND2 is likely to be available as an underlying therapeutic target for gastric cancer.
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Affiliation(s)
- Hongying Zhou
- SuZhou Medical College of Soochow UniversitySuzhouJiangsu ProvinceChina
- Department of Medical Oncology, Cancer CenterZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouZhejiangChina
| | - Dan Su
- Department of Clinical MedicineHangzhou Medical CollegeHangzhouZhejiangChina
| | - Yun Chen
- Department of Medical Oncology, Cancer CenterZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouZhejiangChina
| | - Yiwen Zhang
- Department of Pharmacy, Center for Clinical Pharmacy, Cancer CenterZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouZhejiangChina
| | - Ping Huang
- Department of Pharmacy, Center for Clinical Pharmacy, Cancer CenterZhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College)HangzhouZhejiangChina
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Rashno Z, Rismani E, Ghasemi JB, Mansouri M, Shabani M, Afgar A, Dabiri S, Rezaei Makhouri F, Hatami A, Harandi MF. Design of ion channel blocking, toxin-like Kunitz inhibitor peptides from the tapeworm, Echinococcus granulosus, with potential anti-cancer activity. Sci Rep 2023; 13:11465. [PMID: 37454225 PMCID: PMC10349847 DOI: 10.1038/s41598-023-38159-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 07/04/2023] [Indexed: 07/18/2023] Open
Abstract
Over-expression of K+ channels has been reported in human cancers and is associated with the poor prognosis of several malignancies. EAG1, a particular potassium ion channel, is widely expressed in the brain but poorly expressed in other normal tissues. Kunitz proteins are dominant in metazoan including the dog tapeworm, Echinococcus granulosus. Using computational analyses on one A-type potassium channel, EAG1, and in vitro cellular methods, including major cancer cell biomarkers expression, immunocytochemistry and whole-cell patch clamp, we demonstrated the anti-tumor activity of three synthetic small peptides derived from E. granulosus Kunitz4 protease inhibitors. Experiments showed induced significant apoptosis and inhibition of proliferation in both cancer cell lines via disruption in cell-cycle transition from the G0/G1 to S phase. Western blotting showed that the levels of cell cycle-related proteins including P27 and P53 were altered upon kunitz4-a and kunitz4-c treatment. Patch clamp analysis demonstrated a significant increase in spontaneous firing frequency in Purkinje neurons, and exposure to kunitz4-c was associated with an increase in the number of rebound action potentials after hyperpolarized current. This noteworthy component in nature could act as an ion channel blocker and is a potential candidate for cancer chemotherapy based on potassium channel blockage.
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Affiliation(s)
- Zahra Rashno
- Research Center for Hydatid Disease in Iran, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, 7616914115, Iran
| | - Elham Rismani
- Molecular Medicine Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Jahan B Ghasemi
- Faculty of Chemistry, School of Sciences, University of Tehran, Tehran, Iran
| | - Mehdi Mansouri
- Department of Agricultural Biotechnology, Faculty of Agriculture, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Mohammad Shabani
- Neuroscience Research Center, Institute of Neuropharmacology, Kerman University of Medical Sciences, Kerman, Iran
| | - Ali Afgar
- Research Center for Hydatid Disease in Iran, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, 7616914115, Iran
| | - Shahriar Dabiri
- Pathology and Stem Cell Research Center, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | | | - Abbas Hatami
- Pathology and Stem Cell Research Center, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Majid Fasihi Harandi
- Research Center for Hydatid Disease in Iran, Afzalipour School of Medicine, Kerman University of Medical Sciences, Kerman, 7616914115, Iran.
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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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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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13
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Cereijido M, Jimenez L, Hinojosa L, Castillo A, Martínez-Rendon J, Ponce A. Ouabain-Induced Changes in the Expression of Voltage-Gated Potassium Channels in Epithelial Cells Depend on Cell-Cell Contacts. Int J Mol Sci 2022; 23:13257. [PMID: 36362049 PMCID: PMC9655981 DOI: 10.3390/ijms232113257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/21/2022] [Accepted: 10/23/2022] [Indexed: 12/25/2023] Open
Abstract
Ouabain is a cardiac glycoside, initially isolated from plants, and currently thought to be a hormone since some mammals synthesize it endogenously. It has been shown that in epithelial cells, it induces changes in properties and components related to apical-basolateral polarity and cell-cell contacts. In this work, we used a whole-cell patch clamp to test whether ouabain affects the properties of the voltage-gated potassium currents (Ik) of epithelial cells (MDCK). We found that: (1) in cells arranged as mature monolayers, ouabain induced changes in the properties of Ik; (2) it also accelerated the recovery of Ik in cells previously trypsinized and re-seeded at confluence; (3) in cell-cell contact-lacking cells, ouabain did not produce a significant change; (4) Na+/K+ ATPase might be the receptor that mediates the effect of ouabain on Ik; (5) the ouabain-induced changes in Ik required the synthesis of new nucleotides and proteins, as well as Golgi processing and exocytosis, as evidenced by treatment with drugs inhibiting those processes; and (5) the signaling cascade included the participation of cSrC, PI3K, Erk1/2, NF-κB and β-catenin. These results reveal a new role for ouabain as a modulator of the expression of voltage-gated potassium channels, which require cells to be in contact with themselves.
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Affiliation(s)
- Marcelino Cereijido
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
| | - Lidia Jimenez
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
| | - Lorena Hinojosa
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
| | - Aida Castillo
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
| | - Jacqueline Martínez-Rendon
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
- Molecular Medicine Laboratory, Unidad Academica de Medicina Humana y C.S, Campus UAZ Siglo XXI-L1, Universidad Autónoma de Zacatecas, Zacatecas 98160, Mexico
| | - Arturo Ponce
- Department of Physiology, Biophysics and Neurosciences, CINVESTAV-IPN, CDMX 07360, Mexico
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14
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Mészáros B, Csoti A, Szanto TG, Telek A, Kovács K, Toth A, Volkó J, Panyi G. The hEag1 K + Channel Inhibitor Astemizole Stimulates Ca 2+ Deposition in SaOS-2 and MG-63 Osteosarcoma Cultures. Int J Mol Sci 2022; 23:ijms231810533. [PMID: 36142445 PMCID: PMC9504018 DOI: 10.3390/ijms231810533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 08/27/2022] [Accepted: 09/06/2022] [Indexed: 11/29/2022] Open
Abstract
The hEag1 (Kv10.1) K+ channel is normally found in the brain, but it is ectopically expressed in tumor cells, including osteosarcoma. Based on the pivotal role of ion channels in osteogenesis, we tested whether pharmacological modulation of hEag1 may affect osteogenic differentiation of osteosarcoma cell lines. Using molecular biology (RT-PCR), electrophysiology (patch-clamp) and pharmacology (astemizole sensitivity, IC50 = 0.135 μM) we demonstrated that SaOS-2 osteosarcoma cells also express hEag1 channels. SaOS-2 cells also express to KCa1.1 K+ channels as shown by mRNA expression and paxilline sensitivity of the current. The inhibition of hEag1 (2 μM astemizole) or KCa1.1 (1 mM TEA) alone did not induce Ca2+ deposition in SaOS-2 cultures, however, these inhibitors, at identical concentrations, increased Ca2+ deposition evoked by the classical or pathological (inorganic phosphate, Pi) induction pathway without causing cytotoxicity, as reported by three completer assays (LDH release, MTT assay and SRB protein assay). We observed a similar effect of astemizole on Ca2+ deposition in MG-63 osteosarcoma cultures as well. We propose that the increase in the osteogenic stimuli-induced mineral matrix formation of osteosarcoma cell lines by inhibiting hEag1 may be a useful tool to drive terminal differentiation of osteosarcoma.
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Affiliation(s)
- Beáta Mészáros
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Life Science Building, Egyetem Ter 1, H-4032 Debrecen, Hungary
- MTA-DE Cell Biology and Signaling Research Group, Life Science Building, Egyetem Ter 1, H-4032 Debrecen, Hungary
| | - Agota Csoti
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Life Science Building, Egyetem Ter 1, H-4032 Debrecen, Hungary
| | - Tibor G. Szanto
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Life Science Building, Egyetem Ter 1, H-4032 Debrecen, Hungary
| | - Andrea Telek
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Life Science Building, Egyetem Ter 1, H-4032 Debrecen, Hungary
| | - Katalin Kovács
- Department of Medical Chemistry, Faculty of Medicine, University of Debrecen, Life Science Building, Egyetem Ter 1, H-4032 Debrecen, Hungary
| | - Agnes Toth
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Life Science Building, Egyetem Ter 1, H-4032 Debrecen, Hungary
| | - Julianna Volkó
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Life Science Building, Egyetem Ter 1, H-4032 Debrecen, Hungary
| | - Gyorgy Panyi
- Department of Biophysics and Cell Biology, Faculty of Medicine, University of Debrecen, Life Science Building, Egyetem Ter 1, H-4032 Debrecen, Hungary
- Correspondence: ; Tel.: +36-52-258603; Fax: +36-52-532201
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15
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Sheth M, Esfandiari L. Bioelectric Dysregulation in Cancer Initiation, Promotion, and Progression. Front Oncol 2022; 12:846917. [PMID: 35359398 PMCID: PMC8964134 DOI: 10.3389/fonc.2022.846917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 02/21/2022] [Indexed: 12/12/2022] Open
Abstract
Cancer is primarily a disease of dysregulation – both at the genetic level and at the tissue organization level. One way that tissue organization is dysregulated is by changes in the bioelectric regulation of cell signaling pathways. At the basis of bioelectricity lies the cellular membrane potential or Vmem, an intrinsic property associated with any cell. The bioelectric state of cancer cells is different from that of healthy cells, causing a disruption in the cellular signaling pathways. This disruption or dysregulation affects all three processes of carcinogenesis – initiation, promotion, and progression. Another mechanism that facilitates the homeostasis of cell signaling pathways is the production of extracellular vesicles (EVs) by cells. EVs also play a role in carcinogenesis by mediating cellular communication within the tumor microenvironment (TME). Furthermore, the production and release of EVs is altered in cancer. To this end, the change in cell electrical state and in EV production are responsible for the bioelectric dysregulation which occurs during cancer. This paper reviews the bioelectric dysregulation associated with carcinogenesis, including the TME and metastasis. We also look at the major ion channels associated with cancer and current technologies and tools used to detect and manipulate bioelectric properties of cells.
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Affiliation(s)
- Maulee Sheth
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, United States
| | - Leyla Esfandiari
- Department of Biomedical Engineering, University of Cincinnati, Cincinnati, OH, United States
- Department of Electrical Engineering and Computer Science, University of Cincinnati, Cincinnati, OH, United States
- Department of Environmental and Public Health Sciences, University of Cincinnati, Cincinnati, OH, United States
- *Correspondence: Leyla Esfandiari,
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16
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Almansoori A, Bhamidimarri PM, Bendardaf R, Hamoudi R. In silico Analysis of Publicly Available Transcriptomics Data Identifies Putative Prognostic and Therapeutic Molecular Targets for Papillary Thyroid Carcinoma. Int J Gen Med 2022; 15:3097-3120. [PMID: 35330879 PMCID: PMC8939872 DOI: 10.2147/ijgm.s345336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 02/25/2022] [Indexed: 11/23/2022] Open
Abstract
Background Purpose Methods Results Conclusion
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Affiliation(s)
- Asma Almansoori
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- Correspondence: Asma Almansoori; Rifat Hamoudi, Email ;
| | | | - Riyad Bendardaf
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Department of Oncology, University Hospital Sharjah, Sharjah, United Arab Emirates
| | - Rifat Hamoudi
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Division of Surgery and Interventional Science, University College London, London, UK
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17
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Gubič Š, Hendrickx LA, Toplak Ž, Sterle M, Peigneur S, Tomašič T, Pardo LA, Tytgat J, Zega A, Mašič LP. Discovery of K V 1.3 ion channel inhibitors: Medicinal chemistry approaches and challenges. Med Res Rev 2021; 41:2423-2473. [PMID: 33932253 PMCID: PMC8252768 DOI: 10.1002/med.21800] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 03/03/2021] [Accepted: 03/19/2021] [Indexed: 12/12/2022]
Abstract
The KV 1.3 voltage-gated potassium ion channel is involved in many physiological processes both at the plasma membrane and in the mitochondria, chiefly in the immune and nervous systems. Therapeutic targeting KV 1.3 with specific peptides and small molecule inhibitors shows great potential for treating cancers and autoimmune diseases, such as multiple sclerosis, type I diabetes mellitus, psoriasis, contact dermatitis, rheumatoid arthritis, and myasthenia gravis. However, no KV 1.3-targeted compounds have been approved for therapeutic use to date. This review focuses on the presentation of approaches for discovering new KV 1.3 peptide and small-molecule inhibitors, and strategies to improve the selectivity of active compounds toward KV 1.3. Selectivity of dalatazide (ShK-186), a synthetic derivate of the sea anemone toxin ShK, was achieved by chemical modification and has successfully reached clinical trials as a potential therapeutic for treating autoimmune diseases. Other peptides and small-molecule inhibitors are critically evaluated for their lead-like characteristics and potential for progression into clinical development. Some small-molecule inhibitors with well-defined structure-activity relationships have been optimized for selective delivery to mitochondria, and these offer therapeutic potential for the treatment of cancers. This overview of KV 1.3 inhibitors and methodologies is designed to provide a good starting point for drug discovery to identify novel effective KV 1.3 modulators against this target in the future.
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Affiliation(s)
- Špela Gubič
- Faculty of PharmacyUniversity of LjubljanaLjubljanaSlovenia
| | - Louise A. Hendrickx
- Toxicology and PharmacologyUniversity of Leuven, Campus GasthuisbergLeuvenBelgium
| | - Žan Toplak
- Faculty of PharmacyUniversity of LjubljanaLjubljanaSlovenia
| | - Maša Sterle
- Faculty of PharmacyUniversity of LjubljanaLjubljanaSlovenia
| | - Steve Peigneur
- Faculty of PharmacyUniversity of LjubljanaLjubljanaSlovenia
| | | | - Luis A. Pardo
- AG OncophysiologyMax‐Planck Institute for Experimental MedicineGöttingenGermany
| | - Jan Tytgat
- Toxicology and PharmacologyUniversity of Leuven, Campus GasthuisbergLeuvenBelgium
| | - Anamarija Zega
- Faculty of PharmacyUniversity of LjubljanaLjubljanaSlovenia
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18
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Langthaler S, Rienmüller T, Scheruebel S, Pelzmann B, Shrestha N, Zorn-Pauly K, Schreibmayer W, Koff A, Baumgartner C. A549 in-silico 1.0: A first computational model to simulate cell cycle dependent ion current modulation in the human lung adenocarcinoma. PLoS Comput Biol 2021; 17:e1009091. [PMID: 34157016 PMCID: PMC8219159 DOI: 10.1371/journal.pcbi.1009091] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 05/18/2021] [Indexed: 11/18/2022] Open
Abstract
Lung cancer is still a leading cause of death worldwide. In recent years, knowledge has been obtained of the mechanisms modulating ion channel kinetics and thus of cell bioelectric properties, which is promising for oncological biomarkers and targets. The complex interplay of channel expression and its consequences on malignant processes, however, is still insufficiently understood. We here introduce the first approach of an in-silico whole-cell ion current model of a cancer cell, in particular of the A549 human lung adenocarcinoma, including the main functionally expressed ion channels in the plasma membrane as so far known. This hidden Markov-based model represents the electrophysiology behind proliferation of the A549 cell, describing its rhythmic oscillation of the membrane potential able to trigger the transition between cell cycle phases, and it predicts membrane potential changes over the cell cycle provoked by targeted ion channel modulation. This first A549 in-silico cell model opens up a deeper insight and understanding of possible ion channel interactions in tumor development and progression, and is a valuable tool for simulating altered ion channel function in lung cancer electrophysiology.
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Affiliation(s)
- Sonja Langthaler
- Institute of Health Care Engineering with European Testing Center for Medical Devices, Graz University of Technology, Graz, Austria
| | - Theresa Rienmüller
- Institute of Health Care Engineering with European Testing Center for Medical Devices, Graz University of Technology, Graz, Austria
| | - Susanne Scheruebel
- Research Unit on Ion Channels and Cancer Biology, Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
| | - Brigitte Pelzmann
- Research Unit on Ion Channels and Cancer Biology, Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
| | - Niroj Shrestha
- Research Unit on Ion Channels and Cancer Biology, Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
| | - Klaus Zorn-Pauly
- Research Unit on Ion Channels and Cancer Biology, Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
| | - Wolfgang Schreibmayer
- Research Unit on Ion Channels and Cancer Biology, Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, Graz, Austria
| | - Andrew Koff
- Molecular Biology Program, Memorial Sloan Kettering Cancer Center, New York City, New York, United States of America
| | - Christian Baumgartner
- Institute of Health Care Engineering with European Testing Center for Medical Devices, Graz University of Technology, Graz, Austria
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19
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Park HW, Song MS, Sim HJ, Ryu PD, Lee SY. The role of the voltage-gated potassium channel, Kv2.1 in prostate cancer cell migration. BMB Rep 2021. [PMID: 33407994 PMCID: PMC7907745 DOI: 10.5483/bmbrep.2021.54.2.210] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Voltage-gated potassium (Kv) channels are involved in many important cellular functions and play pivotal roles in cancer progression. The expression level of Kv2.1 was observed to be higher in the highly metastatic prostate cancer cells (PC-3), specifically in their membrane, than in immortalized prostate cells (WPMY-1 cells) and comparatively less metastatic prostate cancer cells (LNCaP and DU145 cells). However, Kv2.1 expression was significantly decreased when the cells were treated with anti-oxidants, such as N-acetylcysteine or ascorbic acid, implying that the highly expressed Kv2.1 could detect reactive oxygen species (ROS) in malignant prostate cancer cells. In addition, the blockade of Kv2.1 with stromatoxin-1 or siRNA targeting Kv2.1 significantly inhibited the migration of malignant prostate cancer cells. Our results suggested that Kv2.1 plays an important role as a ROS sensor and that it is a promising therapeutic molecular target in metastasis of prostate cancer.
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Affiliation(s)
- Hyun Woo Park
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
| | - Min Seok Song
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
| | - Hun Ju Sim
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
| | - Pan Dong Ryu
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
| | - So Yeong Lee
- Laboratory of Veterinary Pharmacology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Korea
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20
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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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21
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Tsai HF, IJspeert C, Shen AQ. Voltage-gated ion channels mediate the electrotaxis of glioblastoma cells in a hybrid PMMA/PDMS microdevice. APL Bioeng 2020; 4:036102. [PMID: 32637857 PMCID: PMC7332302 DOI: 10.1063/5.0004893] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 06/08/2020] [Indexed: 11/18/2022] Open
Abstract
Transformed astrocytes in the most aggressive form cause glioblastoma, the most common cancer in the central nervous system with high mortality. The physiological electric field by neuronal local field potentials and tissue polarity may guide the infiltration of glioblastoma cells through the electrotaxis process. However, microenvironments with multiplex gradients are difficult to create. In this work, we have developed a hybrid microfluidic platform to study glioblastoma electrotaxis in controlled microenvironments with high throughput quantitative analysis by machine learning-powered single cell tracking software. By equalizing the hydrostatic pressure difference between inlets and outlets of the microchannel, uniform single cells can be seeded reliably inside the microdevice. The electrotaxis of two glioblastoma models, T98G and U-251MG, requires an optimal laminin-containing extracellular matrix and exhibits opposite directional and electro-alignment tendencies. Calcium signaling is a key contributor in glioblastoma pathophysiology but its role in glioblastoma electrotaxis is still an open question. Anodal T98G electrotaxis and cathodal U-251MG electrotaxis require the presence of extracellular calcium cations. U-251MG electrotaxis is dependent on the P/Q-type voltage-gated calcium channel (VGCC) and T98G is dependent on the R-type VGCC. U-251MG electrotaxis and T98G electrotaxis are also mediated by A-type (rapidly inactivating) voltage-gated potassium channels and acid-sensing sodium channels. The involvement of multiple ion channels suggests that the glioblastoma electrotaxis is complex and patient-specific ion channel expression can be critical to develop personalized therapeutics to fight against cancer metastasis. The hybrid microfluidic design and machine learning-powered single cell analysis provide a simple and flexible platform for quantitative investigation of complicated biological systems.
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Affiliation(s)
- Hsieh-Fu Tsai
- Micro/Bio/Nanofluidics Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa 904-0495, Japan
| | - Camilo IJspeert
- Micro/Bio/Nanofluidics Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa 904-0495, Japan
| | - Amy Q. Shen
- Micro/Bio/Nanofluidics Unit, Okinawa Institute of Science and Technology Graduate University, Okinawa 904-0495, Japan
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22
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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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23
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First report on BaltCRP, a cysteine-rich secretory protein (CRISP) from Bothrops alternatus venom: Effects on potassium channels and inflammatory processes. Int J Biol Macromol 2019; 140:556-567. [DOI: 10.1016/j.ijbiomac.2019.08.108] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/12/2019] [Accepted: 08/12/2019] [Indexed: 12/20/2022]
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24
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Ko EA, Kim YW, Lee D, Choi J, Kim S, Seo Y, Bang H, Kim JH, Ko JH. Expression of potassium channel genes predicts clinical outcome in lung cancer. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2019; 23:529-537. [PMID: 31680775 PMCID: PMC6819903 DOI: 10.4196/kjpp.2019.23.6.529] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/02/2019] [Accepted: 10/02/2019] [Indexed: 12/26/2022]
Abstract
Lung cancer is the most common cause of cancer deaths worldwide and several molecular signatures have been developed to predict survival in lung cancer. Increasing evidence suggests that proliferation and migration to promote tumor growth are associated with dysregulated ion channel expression. In this study, by analyzing high-throughput gene expression data, we identify the differentially expressed K+ channel genes in lung cancer. In total, we prioritize ten dysregulated K+ channel genes (5 up-regulated and 5 down-regulated genes, which were designated as K-10) in lung tumor tissue compared with normal tissue. A risk scoring system combined with the K-10 signature accurately predicts clinical outcome in lung cancer, which is independent of standard clinical and pathological prognostic factors including patient age, lymph node involvement, tumor size, and tumor grade. We further indicate that the K-10 potentially predicts clinical outcome in breast and colon cancers. Molecular signature discovered through K+ gene expression profiling may serve as a novel biomarker to assess the risk in lung cancer.
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Affiliation(s)
- Eun-A Ko
- Department of Physiology and Cell Biology, University of Nevada, Reno School of Medicine, Reno, Nevada 89557, USA
| | - Young-Won Kim
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Donghee Lee
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Jeongyoon Choi
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Seongtae Kim
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Yelim Seo
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Hyoweon Bang
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
| | - Jung-Ha Kim
- Department of Family Medicine, Chung-Ang University Hospital, College of Medicine, Chung-Ang University, Seoul 06973, Korea
| | - Jae-Hong Ko
- Department of Physiology, College of Medicine, Chung-Ang University, Seoul 06974, Korea
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25
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Anderson KJ, Cormier RT, Scott PM. Role of ion channels in gastrointestinal cancer. World J Gastroenterol 2019; 25:5732-5772. [PMID: 31636470 PMCID: PMC6801186 DOI: 10.3748/wjg.v25.i38.5732] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 07/26/2019] [Accepted: 09/27/2019] [Indexed: 02/06/2023] Open
Abstract
In their seminal papers Hanahan and Weinberg described oncogenic processes a normal cell undergoes to be transformed into a cancer cell. The functions of ion channels in the gastrointestinal (GI) tract influence a variety of cellular processes, many of which overlap with these hallmarks of cancer. In this review we focus on the roles of the calcium (Ca2+), sodium (Na+), potassium (K+), chloride (Cl-) and zinc (Zn2+) transporters in GI cancer, with a special emphasis on the roles of the KCNQ1 K+ channel and CFTR Cl- channel in colorectal cancer (CRC). Ca2+ is a ubiquitous second messenger, serving as a signaling molecule for a variety of cellular processes such as control of the cell cycle, apoptosis, and migration. Various members of the TRP superfamily, including TRPM8, TRPM7, TRPM6 and TRPM2, have been implicated in GI cancers, especially through overexpression in pancreatic adenocarcinomas and down-regulation in colon cancer. Voltage-gated sodium channels (VGSCs) are classically associated with the initiation and conduction of action potentials in electrically excitable cells such as neurons and muscle cells. The VGSC NaV1.5 is abundantly expressed in human colorectal CRC cell lines as well as being highly expressed in primary CRC samples. Studies have demonstrated that conductance through NaV1.5 contributes significantly to CRC cell invasiveness and cancer progression. Zn2+ transporters of the ZIP/SLC39A and ZnT/SLC30A families are dysregulated in all major GI organ cancers, in particular, ZIP4 up-regulation in pancreatic cancer (PC). More than 70 K+ channel genes, clustered in four families, are found expressed in the GI tract, where they regulate a range of cellular processes, including gastrin secretion in the stomach and anion secretion and fluid balance in the intestinal tract. Several distinct types of K+ channels are found dysregulated in the GI tract. Notable are hERG1 upregulation in PC, gastric cancer (GC) and CRC, leading to enhanced cancer angiogenesis and invasion, and KCNQ1 down-regulation in CRC, where KCNQ1 expression is associated with enhanced disease-free survival in stage II, III, and IV disease. Cl- channels are critical for a range of cellular and tissue processes in the GI tract, especially fluid balance in the colon. Most notable is CFTR, whose deficiency leads to mucus blockage, microbial dysbiosis and inflammation in the intestinal tract. CFTR is a tumor suppressor in several GI cancers. Cystic fibrosis patients are at a significant risk for CRC and low levels of CFTR expression are associated with poor overall disease-free survival in sporadic CRC. Two other classes of chloride channels that are dysregulated in GI cancers are the chloride intracellular channels (CLIC1, 3 & 4) and the chloride channel accessory proteins (CLCA1,2,4). CLIC1 & 4 are upregulated in PC, GC, gallbladder cancer, and CRC, while the CLCA proteins have been reported to be down-regulated in CRC. In summary, it is clear, from the diverse influences of ion channels, that their aberrant expression and/or activity can contribute to malignant transformation and tumor progression. Further, because ion channels are often localized to the plasma membrane and subject to multiple layers of regulation, they represent promising clinical targets for therapeutic intervention including the repurposing of current drugs.
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Affiliation(s)
- Kyle J Anderson
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, United States
| | - Robert T Cormier
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, United States
| | - Patricia M Scott
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN 55812, United States
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26
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Jędrychowska J, Korzh V. Kv2.1 voltage-gated potassium channels in developmental perspective. Dev Dyn 2019; 248:1180-1194. [PMID: 31512327 DOI: 10.1002/dvdy.114] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/01/2019] [Accepted: 09/03/2019] [Indexed: 11/11/2022] Open
Abstract
Kv2.1 voltage-gated potassium channels consist of two types of α-subunits: (a) electrically-active Kcnb1 α-subunits and (b) silent or modulatory α-subunits plus β-subunits that, similar to silent α-subunits, also regulate electrically-active subunits. Voltage-gated potassium channels were traditionally viewed, mainly by electrophysiologists, as regulators of the electrical activity of the plasma membrane in excitable cells, a role that is performed by transmembrane protein domains of α-subunits that form the electric pore. Genetic studies revealed a role for this region of α-subunits of voltage-gated potassium channels in human neurodevelopmental disorders, such as epileptic encephalopathy. The N- and C-terminal domains of α-subunits interact to form the cytoplasmic subunit of heterotetrameric potassium channels that regulate electric pores. Subsequent animal studies revealed the developmental functions of Kcnb1-containing voltage-gated potassium channels and illustrated their role during brain development and reproduction. These functions of potassium channels are discussed in this review in the context of regulatory interactions between electrically-active and regulatory subunits.
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Affiliation(s)
- Justyna Jędrychowska
- International Institute of Molecular and Cell Biology in Warsaw, Warsaw, Poland.,Postgraduate School of Molecular Medicine, Warsaw Medical University, Warsaw, Poland
| | - Vladimir Korzh
- International Institute of Molecular and Cell Biology in Warsaw, Warsaw, Poland
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27
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Wang X, Chen Y, Liu H, Guo S, Hu Y, Zhan Y, An H. A novel anti-cancer mechanism of Nutlin-3 through downregulation of Eag1 channel and PI3K/AKT pathway. Biochem Biophys Res Commun 2019; 517:445-451. [PMID: 31378368 DOI: 10.1016/j.bbrc.2019.07.106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 07/27/2019] [Indexed: 12/31/2022]
Abstract
Nutlin-3 shows a potent antitumor efficacy through downregulation of the cancerogenic ether à go-go 1 (Eag1) channel. However, the molecular mechanisms responsible for the regulation of Eag1 by Nutlin-3 in cancer cells remain unclear. In this study, we propose a novel anticancer mechanism of Nutlin-3, in which Nutlin-3 acts through the p53-Eag1-PI3K/AKT pathway. We first confirmed that Eag1 was downregulated through the activation of p53 by Nutlin-3. We then revealed that the inhibition of Eag1 electrophysiological function resulted in the decrease of viability, migration and invasion of HeLa cells. It is worth noting that the antitumor effect of Nutlin-3 was abolished in the Eag1 knockdown HeLa cell lines by siRNA. And Nutlin-3 can decrease the cell viability of H8 cells which were stably transfected with Eag1, but has no obvious inhibitory effect on blank H8 cells. Finally, we demonstrated that the decrease in Eag1 channel activity induced by Nutlin-3 treatment exerts anticancer activity by inhibiting the PI3K/AKT pathway. Our study therefore fills the gap between p53 pathway and its cellular function mediated by Eag1, shedding light on the new anti-cancer mechanism of Nutlin-3.
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Affiliation(s)
- Xuzhao Wang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Key Laboratory of Molecular Biophysics of Hebei Province, School of Science, Hebei University of Technology, Tianjin, 300401, PR China
| | - Yafei Chen
- Key Laboratory of Molecular Biophysics of Hebei Province, School of Science, Hebei University of Technology, Tianjin, 300401, PR China
| | - Hui Liu
- Key Laboratory of Molecular Biophysics of Hebei Province, School of Science, Hebei University of Technology, Tianjin, 300401, PR China
| | - Shuai Guo
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Key Laboratory of Molecular Biophysics of Hebei Province, School of Science, Hebei University of Technology, Tianjin, 300401, PR China
| | - Yufeng Hu
- Key Laboratory of Molecular Biophysics of Hebei Province, School of Science, Hebei University of Technology, Tianjin, 300401, PR China
| | - Yong Zhan
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Key Laboratory of Molecular Biophysics of Hebei Province, School of Science, Hebei University of Technology, Tianjin, 300401, PR China.
| | - Hailong An
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology, Tianjin, 300130, PR China; Key Laboratory of Molecular Biophysics of Hebei Province, School of Science, Hebei University of Technology, Tianjin, 300401, PR China.
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Strickland M, Yacoubi-Loueslati B, Bouhaouala-Zahar B, Pender SLF, Larbi A. Relationships Between Ion Channels, Mitochondrial Functions and Inflammation in Human Aging. Front Physiol 2019; 10:158. [PMID: 30881309 PMCID: PMC6405477 DOI: 10.3389/fphys.2019.00158] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 02/08/2019] [Indexed: 12/19/2022] Open
Abstract
Aging is often associated with a loss of function. We believe aging to be more an adaptation to the various, and often continuous, stressors encountered during life in order to maintain overall functionality of the systems. The maladaptation of a system during aging may increase the susceptibility to diseases. There are basic cellular functions that may influence and/or are influenced by aging. Mitochondrial function is amongst these. Their presence in almost all cell types makes of these valuable targets for interventions to slow down or even reserve signs of aging. In this review, the role of mitochondria and essential physiological regulators of mitochondria and cellular functions, ion channels, will be discussed in the context of human aging. The origins of inflamm-aging, associated with poor clinical outcomes, will be linked to mitochondria and ion channel biology.
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Affiliation(s)
- Marie Strickland
- Singapore Immunology Network, Agency for Science Technology and Research, Singapore, Singapore
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
| | - Besma Yacoubi-Loueslati
- Laboratory of Mycology, Pathologies and Biomarkers, Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis, Tunisia
| | - Balkiss Bouhaouala-Zahar
- Laboratory of Venoms and Therapeutic Molecules, Institut Pasteur de Tunis, University Tunis El Manar, Tunis, Tunisia
- Medical School of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Sylvia L. F. Pender
- Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- Chinese University of Hong Kong – University of Southampton Joint Lab for Stem Cell and Regenerative Medicine, Hong Kong, China
| | - Anis Larbi
- Singapore Immunology Network, Agency for Science Technology and Research, Singapore, Singapore
- Department of Biology, Faculty of Sciences, University Tunis El Manar, Tunis, Tunisia
- Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Geriatrics Division, Department of Medicine, Research Center on Aging, University of Sherbrooke, Sherbrooke, QC, Canada
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Romero AH, López SE, Arvelo F, Sojo F, Calderon C, Morales A. Identification of dehydroxy isoquine and isotebuquine as promising anticancer agents targeting K+ channel. Chem Biol Drug Des 2019; 93:638-646. [PMID: 30570823 DOI: 10.1111/cbdd.13461] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 11/07/2018] [Accepted: 12/07/2018] [Indexed: 01/12/2023]
Abstract
Traditional antimalarial drugs based on 4-aminoquinolines have exhibited good antiproliferative activities against human tumor cells; however, their low relative efficacy has limited their corresponding clinical uses. In order to identify new potent anticancer agents based on 4-aminoquinoline, we evaluated the antiproliferative activity of a series of dehydroxy isoquines and isotebuquines against five human cancer lines. HeLa and SKBr3 were significantly more sensitive to the action of tested quinolines than the A549, MCF-7, and PC-3 cancer lines. Compound 2h was by far the most potent derivative against four of the tested lines (except to PC3 line), exhibiting low micromolar or nanomolar IC50 values superior to adriamycin reference, low toxicities on dermis human fibroblasts (LD50 > 250 μM), and excellent selectivity indexes against the mentioned cancer cells. A structure-activity relationship analysis put in evidence that a pyrrolidine or morpholine moiety as N-alkyl terminal substitution and the incorporation of the extra phenyl attached to aniline ring are pharmacophore essentials for improvement the anticancer activity of the studied dehydroxy isoquines and isotebuquines. From the results, compound 2h emerged as a promising anticancer candidate for further in vitro assays against resistant-strain and in vivo studies as well as pharmacokinetic and genotoxicity studies. Mechanistic assays suggested that the most active quinoline 2h act as calcium-activated potassium channel activator.
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Affiliation(s)
- Angel H Romero
- Cátedra de Química, Facultad de Farmacia, Universidad Central de Venezuela, Caracas, Venezuela
| | - Simón E López
- Department of Chemistry, University of Florida, Gainesville, Florida
| | - Francisco Arvelo
- Fundación Institutos de Estudios Avanzados -IDEA, Área Salud, Caracas, Venezuela.,Laboratorio de Cultivo de Tejidos y Biología de Tumores, Instituto de Biología Experimental-IBE, Facultad de Ciencias-UCV, Caracas, Venezuela
| | - Felipe Sojo
- Fundación Institutos de Estudios Avanzados -IDEA, Área Salud, Caracas, Venezuela.,Laboratorio de Cultivo de Tejidos y Biología de Tumores, Instituto de Biología Experimental-IBE, Facultad de Ciencias-UCV, Caracas, Venezuela
| | - Christian Calderon
- Laboratorio de Fisiología y Biofísica, Centro de Biología Celular, Instituto de Biología Experimental-IBE, Facultad de Ciencias, UCV, Caracas, Venezuela
| | - Alvaro Morales
- Laboratorio de Biotecnología Clínica Santa María, Cevalfes, Caracas, Venezuela
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30
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Cui K, Zhang S, Sun J, Zhang X, Ding C, Xu G. Inhibitory effect of ultrasonic stimulation on the voltage-dependent potassium currents in rat hippocampal CA1 neurons. BMC Neurosci 2019; 20:3. [PMID: 30611209 PMCID: PMC6321733 DOI: 10.1186/s12868-018-0485-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Accepted: 12/26/2018] [Indexed: 12/20/2022] Open
Abstract
Background Transcranial ultrasonic stimulation is a novel noninvasive tool for neuromodulation, and has high spatial resolution and deep penetration. Although it can increase excitation of neurons, its effects on neuron are poorly understood. This study was to evaluate effect of ultrasonic stimulation (US) on neurons in vitro. In this paper, the effect of US on the excitability and voltage-dependent \documentclass[12pt]{minimal}
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\begin{document}$$ K^{ + } $$\end{document}K+ currents of CA1 pyramidal neurons in the rat hippocampus was studied using patch clamp. Results Our results suggest that US increased the spontaneous firing rate and inhibited transient outward potassium current (\documentclass[12pt]{minimal}
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\begin{document}$$ \varvec{I}_{\varvec{A}} $$\end{document}IA) and delayed rectifier potassium current (\documentclass[12pt]{minimal}
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\begin{document}$$ \varvec{I}_{\varvec{K}} ) $$\end{document}IK). Furthermore, US altered the activation of \documentclass[12pt]{minimal}
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\begin{document}$$ \varvec{I}_{\varvec{K}} $$\end{document}IK channels, inactivation and recovery properties of \documentclass[12pt]{minimal}
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\begin{document}$$ \varvec{I}_{\varvec{A}} $$\end{document}IA channels. After US, the \documentclass[12pt]{minimal}
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\begin{document}$$ \varvec{I}_{\varvec{K}} $$\end{document}IK activation curves significantly moved to the negative voltage direction and increased its slope factor. Moreover, the data showed that US moved the inactivation curve of \documentclass[12pt]{minimal}
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\begin{document}$$ \varvec{I}_{\varvec{A}} $$\end{document}IA to the negative voltage and increased the slope factor. Besides, US delayed the recovery of \documentclass[12pt]{minimal}
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\begin{document}$$ \varvec{I}_{\varvec{A}} $$\end{document}IA channel. Conclusions Our data indicate that US can increase excitation of neurons by inhibiting potassium currents. Different US decreased the voltage sensitivity of \documentclass[12pt]{minimal}
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\begin{document}$$ \varvec{I}_{\varvec{K}} $$\end{document}IK activation differentially. Moreover, the more time is needed for US to make the \documentclass[12pt]{minimal}
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\begin{document}$$ \varvec{I}_{\varvec{A}} $$\end{document}IA channels open again after inactivating. US may play a physiological role by inhibiting voltage-dependent potassium currents in neuromodulation. Our research can provide a theoretical basis for the future clinical application of ultrasound in neuromodulation.
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Affiliation(s)
- Kun Cui
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, No. 8 Hongrong Road, Hongqiao District, Tianjin, 300132, China.,Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin, 300132, China
| | - Shuai Zhang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, No. 8 Hongrong Road, Hongqiao District, Tianjin, 300132, China. .,Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin, 300132, China.
| | - Jinyao Sun
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, No. 8 Hongrong Road, Hongqiao District, Tianjin, 300132, China.,Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin, 300132, China
| | - Xueying Zhang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, No. 8 Hongrong Road, Hongqiao District, Tianjin, 300132, China.,Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin, 300132, China
| | - Chong Ding
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, No. 8 Hongrong Road, Hongqiao District, Tianjin, 300132, China.,Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin, 300132, China
| | - Guizhi Xu
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, No. 8 Hongrong Road, Hongqiao District, Tianjin, 300132, China.,Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province, Hebei University of Technology, Tianjin, 300132, China
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Wang X, Chen Y, Li J, Guo S, Lin X, Zhang H, Zhan Y, An H. Tetrandrine, a novel inhibitor of ether‐à‐go‐go‐1 (Eag1), targeted to cervical cancer development. J Cell Physiol 2018; 234:7161-7173. [DOI: 10.1002/jcp.27470] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 08/30/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Xuzhao Wang
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology Tianjin China
- Key Laboratory of Molecular Biophysics, Hebei Province, School of Science, Hebei University of Technology Tianjin China
| | - Yafei Chen
- Key Laboratory of Molecular Biophysics, Hebei Province, School of Science, Hebei University of Technology Tianjin China
| | - Junwei Li
- Key Laboratory of Molecular Biophysics, Hebei Province, School of Science, Hebei University of Technology Tianjin China
| | - Shuai Guo
- Key Laboratory of Molecular Biophysics, Hebei Province, School of Science, Hebei University of Technology Tianjin China
| | - Xiaoe Lin
- Key Laboratory of Molecular Biophysics, Hebei Province, School of Science, Hebei University of Technology Tianjin China
| | - Hailin Zhang
- Department of Pharmacology Key Laboratory of Neural and Vascular Biology, Ministry of Education, Hebei Medical University Shijiazhuang Hebei China
| | - Yong Zhan
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology Tianjin China
- Key Laboratory of Molecular Biophysics, Hebei Province, School of Science, Hebei University of Technology Tianjin China
| | - Hailong An
- State Key Laboratory of Reliability and Intelligence of Electrical Equipment, School of Electrical Engineering, Hebei University of Technology Tianjin China
- Key Laboratory of Molecular Biophysics, Hebei Province, School of Science, Hebei University of Technology Tianjin China
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Shah RR, Stonier PD. Repurposing old drugs in oncology: Opportunities with clinical and regulatory challenges ahead. J Clin Pharm Ther 2018; 44:6-22. [PMID: 30218625 DOI: 10.1111/jcpt.12759] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/08/2018] [Accepted: 08/19/2018] [Indexed: 12/11/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE In order to expedite the availability of drugs to treat cancers in a cost-effective manner, repurposing of old drugs for oncological indications is gathering momentum. Revolutionary advances in pharmacology and genomics have demonstrated many old drugs to have activity at novel antioncogenic pharmacological targets. We decided to investigate whether prospective studies support the promises of nonclinical and retrospective clinical studies on repurposing three old drugs, namely metformin, valproate and astemizole. METHODS We conducted an extensive literature search through PubMed to gather representative nonclinical and retrospective clinical studies that investigated the potential repurposing of these three drugs for oncological indications. We then searched for prospective studies aimed at confirming the promises of retrospective data. RESULTS AND DISCUSSION While evidence from nonclinical and retrospective clinical studies with these drugs appears highly promising, large scale prospective studies are either lacking or have failed to substantiate this promise. We provide a brief discussion of some of the challenges in repurposing. Principal challenges and obstacles relate to heterogeneity of cancers studied without considering their molecular signatures, trials with small sample size and short duration, failure consider issues of ethnicity of study population and effective antioncogenic doses of the drug studied. WHAT IS NEW AND CONCLUSION Well-designed prospective studies demonstrating efficacy are required for repurposing old drugs for oncology indications, just as they are for new chemical entities for any indication. Early and ongoing interactions with regulatory authorities are invaluable. We outline a tentative framework for a structured approach to repurposing old drugs for novel indications in oncology.
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Affiliation(s)
- Rashmi R Shah
- Pharmaceutical Consultant, Gerrards Cross, Buckinghamshire, UK
| | - Peter D Stonier
- Department of Pharmaceutical Medicine, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College, London, UK
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Zhang G, Wang X, Xue Q. Combined targeted ion channel therapy: Can it be an alternative choice for esophageal cancer patients? Med Hypotheses 2018; 117:59-62. [DOI: 10.1016/j.mehy.2018.06.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 04/23/2018] [Accepted: 06/07/2018] [Indexed: 01/05/2023]
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34
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Calabrò E, Magazù S. Resonant interaction between electromagnetic fields and proteins: A possible starting point for the treatment of cancer. Electromagn Biol Med 2018; 37:155-168. [DOI: 10.1080/15368378.2018.1499031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Emanuele Calabrò
- Department of Mathematical and Informatics Sciences, Physical Sciences and Earth Sciences of Messina University, Messina, Italy
- CISFA - Interuniversity Consortium of Applied Physical Sciences (Consorzio Interuniversitario di Scienze Fisiche Applicate), Messina, Italy
| | - Salvatore Magazù
- Department of Mathematical and Informatics Sciences, Physical Sciences and Earth Sciences of Messina University, Messina, Italy
- Le Studium, Loire Valley Institute for Advanced Studies, Orléans & Tours, Orléans, France
- Centre de Biophysique Moleculaire (CBM), rue Charles Sadron, Laboratoire Interfaces, Confinement, Matériaux et Nanostructures (ICMN) – UMR 7374 CNRS, Université d’Orléans, Orleans, France
- Istituto Nazionale di Alta Matematica “F. Severi” – INDAM – Gruppo Nazionale per la Fisica Matematica – GNFM, Rome, Italy
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A three ion channel genes-based signature predicts prognosis of primary glioblastoma patients and reveals a chemotherapy sensitive subtype. Oncotarget 2018; 7:74895-74903. [PMID: 27713134 PMCID: PMC5342710 DOI: 10.18632/oncotarget.12462] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 09/29/2016] [Indexed: 12/22/2022] Open
Abstract
Increasing evidence suggests that ion channels not only regulate electric signaling in excitable cells but also play important roles in the development of brain tumor. However, the roles of ion channels in glioma remain controversial. In the present study, we systematically analyzed the expression patterns of ion channel genes in a cohort of Chinese patients with glioma using RNAseq expression profiling. First, a molecular signature comprising three ion channel genes (KCNN4, KCNB1 and KCNJ10) was identified using Univariate Cox regression and two-tailed student's t test conducted in overall survival (OS) and gene expression. We assigned a risk score based on three ion channel genes to each primary Glioblastoma multiforme (pGBM) patient. We demonstrated that pGBM patients who had a high risk of unfavorable outcome were sensitive to chemotherapy. Next, we screened the three ion genes-based signature in different molecular glioma subtypes. The signature showed a Mesenchymal subtype and wild-type IDH1 preference. Gene ontology (GO) analysis for the functional annotation of the signature showed that patients with high-risk scores tended to exhibit the increased expression of proteins associated with apoptosis, immune response, cell adhesion and motion and vasculature development. Gene Set Enrichment Analysis (GSEA) results showed that pathways associated with negative regulation of programmed cell death, cell proliferation and locomotory behavior were highly expressed in the high-risk group. These results suggest that ion channel gene expression could improve the subtype classification in gliomas at the molecular level. The findings in the present study have been validated in two independent cohorts.
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Moore D, Walker SI, Levin M. Cancer as a disorder of patterning information: computational and biophysical perspectives on the cancer problem. CONVERGENT SCIENCE PHYSICAL ONCOLOGY 2017. [DOI: 10.1088/2057-1739/aa8548] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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37
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Lu FF, Wang HY, He XZ, Liang TY, Wang W, Hu HM, Wu F, Liu YW, Zhang SZ. Prognostic value of ion channel genes in Chinese patients with gliomas based on mRNA expression profiling. J Neurooncol 2017; 134:397-405. [DOI: 10.1007/s11060-017-2539-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 06/25/2017] [Indexed: 01/17/2023]
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Coşan DT, Öner Ç, Soyocak A, Metcalfe E, Djamgoz M. Meme kanserinde Kv 1.3 ve Kv 10.1 voltaj bağımlı potasyum kanallarının inhibisyonunun oksidatif stres üzerindeki rolü. DICLE MEDICAL JOURNAL 2017. [DOI: 10.5798/dicletip.298591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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39
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Eag1 Voltage-Dependent Potassium Channels: Structure, Electrophysiological Characteristics, and Function in Cancer. J Membr Biol 2017; 250:123-132. [DOI: 10.1007/s00232-016-9944-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 12/19/2016] [Indexed: 01/07/2023]
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40
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Li Z, Zhu K, Gong X, Vasilescu S, Sun Y, Hong K, Li H, Li L, Shan Y. Inducing Polyclonal Eag1-Specific Antibodies by Vaccination with a Linear Epitope Immunogen and Its Relation to Breast Tumorigenesis. Pathol Oncol Res 2017; 23:761-767. [DOI: 10.1007/s12253-016-0158-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 12/08/2016] [Indexed: 11/30/2022]
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41
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Pan Z, Choi S, Ouadid-Ahidouch H, Yang JM, Beattie JH, Korichneva I. Zinc transporters and dysregulated channels in cancers. Front Biosci (Landmark Ed) 2017; 22:623-643. [PMID: 27814637 DOI: 10.2741/4507] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
As a nutritionally essential metal ion, zinc (Zn) not only constitutes a structural element for more than 3000 proteins but also plays important regulatory functions in cellular signal transduction. Zn homeostasis is tightly controlled by regulating the flux of Zn across cell membranes through specific transporters, i.e. ZnT and ZIP family proteins. Zn deficiency and malfunction of Zn transporters have been associated with many chronic diseases including cancer. However, the mechanisms underlying Zn regulatory functions in cellular signaling and their impact on the pathogenesis and progression of cancers remain largely unknown. In addition to these acknowledged multifunctions, Zn modulates a wide range of ion channels that in turn may also play an important role in cancer biology. The goal of this review is to propose how zinc deficiency, through modified Zn homeostasis, transporter activity and the putative regulatory function of Zn can influence ion channel activity, and thereby contribute to carcinogenesis and tumorigenesis. This review intends to stimulate interest in, and support for research into the understanding of Zn-modulated channels in cancers, and to search for novel biomarkers facilitating effective clinical stratification of high risk cancer patients as well as improved prevention and therapy in this emerging field.
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Affiliation(s)
- Zui Pan
- The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA,
| | - Sangyong Choi
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
| | - Halima Ouadid-Ahidouch
- University of Picardie Jules Verne, UFR Sciences, EA 4667, Laboratory of Cell and Molecular Physiology, SFR CAP-SANTE (FED 4231), Amiens, France
| | - Jin-Ming Yang
- Department of Pharmacology, College of Medicine, Penn State University, 500 University Drive Hershey, PA 17033, USA
| | - John H Beattie
- Rowett Institute of Nutrition and Health, University of Aberdeen, Foresterhill, Bucksburn, Aberdeen AB25 2ZD, Scotland, UK
| | - Irina Korichneva
- University of Picardie Jules Verne, UFR Sciences, EA 4667, Laboratory of Cell and Molecular Physiology, SFR CAP-SANTE (FED 4231), Amiens, France
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42
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Chávez-López MDG, Zúñiga-García V, Pérez-Carreón JI, Avalos-Fuentes A, Escobar Y, Camacho J. Eag1 channels as potential early-stage biomarkers of hepatocellular carcinoma. Biologics 2016; 10:139-148. [PMID: 27703327 PMCID: PMC5036561 DOI: 10.2147/btt.s87402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hepatocellular carcinoma (HCC) is a major cause of cancer death worldwide. HCC is usually asymptomatic at potential curative stages, and it has very poor prognosis if detected later. Thus, the identification of early biomarkers and novel therapies is essential to improve HCC patient survival. Ion channels have been proposed as potential tumor markers and therapeutic targets for several cancers including HCC. Especially, the ether à-go-go-1 (Eag1) voltage-gated potassium channel has been suggested as an early marker for HCC. Eag1 is overexpressed during HCC development from the cirrhotic and the preneoplastic lesions preceding HCC in a rat model. The channel is also overexpressed in human HCC. Astemizole has gained great interest as a potential anticancer drug because it targets several proteins involved in cancer including Eag1. Actually, in vivo studies have shown that astemizole may have clinical utility for HCC prevention and treatment. Here, we will review first some general aspects of HCC including the current biomarkers and therapies, and then we will focus on Eag1 channels as promising tools in the early diagnosis of HCC.
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Affiliation(s)
| | - Violeta Zúñiga-García
- Department of Pharmacology, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
| | | | - Arturo Avalos-Fuentes
- Department of Physiology, Biophysics and Neuroscience, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
| | - Yesenia Escobar
- Centro de Investigación Clínica Acelerada Sc, Mexico City, Mexico
| | - Javier Camacho
- Department of Pharmacology, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional
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43
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Tang X, Shao J, Qin X. Crystal structure of the PAS domain of the hEAG potassium channel. Acta Crystallogr F Struct Biol Commun 2016; 72:578-85. [PMID: 27487920 PMCID: PMC4973297 DOI: 10.1107/s2053230x16009419] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 06/09/2016] [Indexed: 11/27/2022] Open
Abstract
KCNH voltage-gated potassium channels play critical roles in regulating cellular functions. The channel is composed of four subunits, each of which contains six transmembrane helices forming the central pore. The cytoplasmic parts of the subunits present a Per-Arnt-Sim (PAS) domain at the N-terminus and a cyclic nucleotide-binding homology domain at the C-terminus. PAS domains are conserved from prokaryotes to eukaryotes and are involved in sensing signals and cellular responses. To better understand the functional roles of PAS domains in KCNH channels, the structure of this domain from the human ether-à-go-go channel (hEAG channel) was determined. By comparing it with the structures of the Homo sapiens EAG-related gene (hERG) channel and the Drosophila EAG-like K(+) (dELK) channel and analyzing the structural features of the hEAG channel, it was identified that a hydrophobic patch on the β-sheet may mediate interaction between the PAS domain and other regions of the channel to regulate its functions.
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Affiliation(s)
- Xue Tang
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, People’s Republic of China
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nankai University, Tianjin 300071, People’s Republic of China
| | - Juan Shao
- State Key Laboratory of Medicinal Chemical Biology, Nankai University, Tianjin 300071, People’s Republic of China
- Department of Biochemistry and Molecular Biology, College of Life Sciences, Nankai University, Tianjin 300071, People’s Republic of China
| | - Xiaohong Qin
- State Key Laboratory of Medicinal Chemical Biology, Tianjin University, Tianjin 300071, People’s Republic of China
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44
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Șterbuleac D, Maniu CL. An antiarrhythmic agent as a promising lead compound for targeting the hEAG1 ion channel in cancer therapy: insights from molecular dynamics simulations. Chem Biol Drug Des 2016; 88:683-689. [PMID: 27254790 DOI: 10.1111/cbdd.12797] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 04/27/2016] [Accepted: 05/30/2016] [Indexed: 11/29/2022]
Abstract
Experimental evidence suggests that hERG and hEAG potassium channels may serve as important cancer therapy targets because either of the channel blockade or inactivation by different methods leads to inhibition of cancer cells growth and proliferation. However, there is no known hEAG specific blocker, and hERG blockade leads to adverse cardiac side effects, although it is currently used in treating certain types of arrhythmias. There have been some attempts to explain the channels blockade by clofilium, an antiarrhythmic agent, and the results lead to different possible binding modes. This study investigates for the first time the potential of using clofilium as a lead compound for finding a novel cancer therapy agent which may target ion channels. The implied findings from a comparative assessment of literature studies were verified using molecular dynamics simulations. The results indicate a particular structural difference between the two channels that could provide a novel and realistic way of using clofilium analogs which may target the hEAG1 ion channel in cancer therapy.
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Affiliation(s)
- Daniel Șterbuleac
- Department of Biology, Biophysics Laboratory, Alexandru Ioan Cuza University, Iași, Romania
| | - Călin Lucian Maniu
- Department of Biology, Biophysics Laboratory, Alexandru Ioan Cuza University, Iași, Romania.
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45
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Fernández-Valle Á, Rodrigo JP, Rodríguez-Santamarta T, Villaronga MÁ, Álvarez-Teijeiro S, García-Pedrero JM, Suárez-Fernández L, Lequerica-Fernández P, de Vicente JC. HERG1 potassium channel expression in potentially malignant disorders of the oral mucosa and prognostic relevance in oral squamous cell carcinoma. Head Neck 2016; 38:1672-1678. [DOI: 10.1002/hed.24493] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 02/24/2016] [Accepted: 03/21/2016] [Indexed: 01/17/2023] Open
Affiliation(s)
- Álvaro Fernández-Valle
- Department of Oral and Maxillofacial Surgery; Hospital Universitario Central de Asturias (HUCA); Oviedo Asturias Spain
| | - Juan Pablo Rodrigo
- Department of Otolaryngology; Hospital Universitario Central de Asturias (HUCA); Oviedo Asturias Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Hospital Universitario Central de Asturias, Edificio Consultas Externas, Planta Baja Lab 2 ORL-IUOPA; Oviedo Asturias Spain
| | - Tania Rodríguez-Santamarta
- Department of Oral and Maxillofacial Surgery; Hospital Universitario Central de Asturias (HUCA); Oviedo Asturias Spain
| | - M. Ángeles Villaronga
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Hospital Universitario Central de Asturias, Edificio Consultas Externas, Planta Baja Lab 2 ORL-IUOPA; Oviedo Asturias Spain
| | - Saúl Álvarez-Teijeiro
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Hospital Universitario Central de Asturias, Edificio Consultas Externas, Planta Baja Lab 2 ORL-IUOPA; Oviedo Asturias Spain
| | - Juana M. García-Pedrero
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Hospital Universitario Central de Asturias, Edificio Consultas Externas, Planta Baja Lab 2 ORL-IUOPA; Oviedo Asturias Spain
| | - Laura Suárez-Fernández
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Hospital Universitario Central de Asturias, Edificio Consultas Externas, Planta Baja Lab 2 ORL-IUOPA; Oviedo Asturias Spain
| | | | - Juan Carlos de Vicente
- Department of Oral and Maxillofacial Surgery; Hospital Universitario Central de Asturias (HUCA); Oviedo Asturias Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA); Hospital Universitario Central de Asturias, Edificio Consultas Externas, Planta Baja Lab 2 ORL-IUOPA; Oviedo Asturias Spain
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46
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Kim BJ, Hong C. Role of transient receptor potential melastatin type 7 channel in gastric cancer. Integr Med Res 2016; 5:124-130. [PMID: 28462107 PMCID: PMC5381434 DOI: 10.1016/j.imr.2016.04.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 04/01/2016] [Accepted: 04/05/2016] [Indexed: 01/11/2023] Open
Abstract
Transient receptor potential (TRP) proteins are a family of ion channels, which are responsible for a wide array of cellular functions. In particular, TRP melastatin type (TRPM) 7 is expressed everywhere and permeable to divalent cations such as Mg2+ and Ca2+. It contains a channel and a kinase domain. Recent studies indicate that activation of TRPM7 plays an important role in the growth and survival of gastric cancer cells. In this review, we describe and discuss the findings of recent studies that have provided novel insights of the relation between TRPM7 and gastric cancer.
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Affiliation(s)
- Byung Joo Kim
- Division of Longevity and Biofunctional Medicine, School of Korean Medicine, Pusan National University, Yangsan, Korea.,Healthy Aging Korean Medical Research Center, School of Korean Medicine, Pusan National University, Yangsan, Korea
| | - Chansik Hong
- Department of Physiology, Seoul National University, College of Medicine, Seoul, Korea
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47
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Zeng W, Liu Q, Chen Z, Wu X, Zhong Y, Wu J. Silencing of hERG1 Gene Inhibits Proliferation and Invasion, and Induces Apoptosis in Human Osteosarcoma Cells by Targeting the NF-κB Pathway. J Cancer 2016; 7:746-57. [PMID: 27076857 PMCID: PMC4829562 DOI: 10.7150/jca.13289] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2015] [Accepted: 02/11/2016] [Indexed: 02/06/2023] Open
Abstract
Recently, the human ether à go-go (eag) related gene 1 (hERG1) channel, a member of the voltage-dependent potassium channel (Kv) family, was determined to have a critical role in cancer cell proliferation, invasion, tumorigenesis and apoptosis. However, the expression levels and functions of hERG1 in osteosarcoma cells remain poorly characterized. In this study, hERG1 transcript and protein levels in osteosarcoma cells and tissues were measured using semi-quantitative real time PCR (RT-PCR), Western blot, and immunohistochemistry. The effects of hERG1 knockdown on osteosarcoma cell proliferation, apoptosis and invasion were examined using CCK-8, colony formation, flow cytometry, caspase-3 activity, wound healing and transwell based assays. Furthermore, semi-quantitative RT-PCR, Western blot and a luciferase reporter assay were used to assess the effects of hERG1 inhibition on the nuclear factor-κB (NF-κB) pathway. In addition, the effect of NF-κB p65-siRNA and NF-κB p65 expression on the survival of osteosarcoma cells was investigated. Through this work, a relationship for hERG1 with the NF-κB pathway was identified. Osteosarcoma cells and tissues were found to express high levels of hERG1. Knockdown of hERG1 significantly suppressed cellular proliferation and invasion, and induced apoptosis, while inhibition of hERG1 significantly decreased activation of NF-κB. Overall, hERG1 may stimulate nuclear translocation of p65, thus regulating the NF-κB pathway through the activation of the hERG1/beta1 integrin complex and PI3K/AKT signaling. Taken together, these results demonstrate that hERG1 is necessary for regulation of osteosarcoma cellular proliferation, apoptosis and migration. Furthermore, this regulation by hERG1 is, at least in part, through mediation of the NF-κB pathway.
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Affiliation(s)
- Wenrong Zeng
- 1. Department of Orthopaedics, the Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army, Zhangzhou, 363000, People's Republic of China
| | - Qingjun Liu
- 1. Department of Orthopaedics, the Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army, Zhangzhou, 363000, People's Republic of China
| | - Zhida Chen
- 1. Department of Orthopaedics, the Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army, Zhangzhou, 363000, People's Republic of China
| | - Xinyu Wu
- 2. Department of Neurology, the Affiliated Southeast Hospital of Xiamen University, Zhangzhou, 363000, People's Republic of China
| | - Yuanfu Zhong
- 3. Department of central laboratory, the Affiliated Southeast Hospital of Xiamen University, Zhangzhou, 363000, People's Republic of China
| | - Jin Wu
- 1. Department of Orthopaedics, the Affiliated Southeast Hospital of Xiamen University, Orthopaedic Center of People's Liberation Army, Zhangzhou, 363000, People's Republic of China
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48
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Fernández-Valle Á, Rodrigo JP, García-Pedrero JM, Rodríguez-Santamarta T, Allonca E, Lequerica-Fernández P, de Vicente JC. Expression of the voltage-gated potassium channel Kv3.4 in oral leucoplakias and oral squamous cell carcinomas. Histopathology 2016; 69:91-8. [DOI: 10.1111/his.12917] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 12/05/2015] [Indexed: 11/27/2022]
Affiliation(s)
- Álvaro Fernández-Valle
- Department of Oral and Maxillofacial Surgery; Hospital Universitario Central de Asturias (HUCA); Oviedo Asturias Spain
| | - Juan Pablo Rodrigo
- Department of Otolaryngology; Hospital Universitario Central de Asturias (HUCA); Oviedo Asturias Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA); University of Oviedo; Oviedo Asturias Spain
| | - Juana M García-Pedrero
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA); University of Oviedo; Oviedo Asturias Spain
| | - Tania Rodríguez-Santamarta
- Department of Oral and Maxillofacial Surgery; Hospital Universitario Central de Asturias (HUCA); Oviedo Asturias Spain
| | - Eva Allonca
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA); University of Oviedo; Oviedo Asturias Spain
| | | | - Juan Carlos de Vicente
- Department of Oral and Maxillofacial Surgery; Hospital Universitario Central de Asturias (HUCA); Oviedo Asturias Spain
- Instituto Universitario de Oncología del Principado de Asturias (IUOPA); University of Oviedo; Oviedo Asturias Spain
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49
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Arosio D, Casagrande C. Advancement in integrin facilitated drug delivery. Adv Drug Deliv Rev 2016; 97:111-43. [PMID: 26686830 DOI: 10.1016/j.addr.2015.12.001] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Revised: 11/27/2015] [Accepted: 12/03/2015] [Indexed: 02/06/2023]
Abstract
The research of integrin-targeted anticancer agents has recorded important advancements in ingenious design of delivery systems, based either on the prodrug approach, or on nanoparticle carriers, but for now, none of these has reached a clinical stage of development. Past work in this area has been extensively reviewed by us and others. Thus, the purpose and scope of the present review is to survey the advancement reported in the last 3years, with focus on innovative delivery systems that appear to afford openings for future developments. These systems exploit the labelling with conventional and novel integrin ligands for targeting the interface of cancer cells and of endothelial cells involved in cancer angiogenesis, with the proteins of the extracellular matrix, in the circulation, in tissues, and in tumour stroma, as the site of progression and metastatic evolution of the disease. Furthermore, these systems implement the expertise in the development of nanomedicines to the purpose of achieving preferential biodistribution and uptake in cancer tissues, internalisation in cancer cells, and release of the transported drugs at intracellular sites. The assessment of the value of controlling these factors, and their combination, for future developments requires support of biological testing in appropriate mechanistic models, but also imperatively demand confirmation in therapeutically relevant in vivo models for biodistribution, efficacy, and lack of off-target effects. Thus, among many studies, we have tried to point out the results supported by relevant in vivo studies, and we have emphasised in specific sections those addressing the medical needs of drug delivery to brain tumours, as well as the delivery of oligonucleotides modulating gene-dependent pathological mechanism. The latter could constitute the basis of a promising third branch in the therapeutic armamentarium against cancer, in addition to antibody-based agents and to cytotoxic agents.
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Affiliation(s)
- Daniela Arosio
- Istituto di Scienze e Tecnologie Molecolari (ISTM), CNR, Via C. Golgi 19, I-20133 Milan, Italy.
| | - Cesare Casagrande
- Università degli Studi di Milano, Dipartimento di Chimica, Via C. Golgi 19, I-20133 Milan, Italy.
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50
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Silencing of Eag1 Gene Inhibits Osteosarcoma Proliferation and Migration by Targeting STAT3-VEGF Pathway. BIOMED RESEARCH INTERNATIONAL 2015; 2015:617316. [PMID: 26783521 PMCID: PMC4689893 DOI: 10.1155/2015/617316] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 11/03/2015] [Indexed: 11/29/2022]
Abstract
So far, the role of Ether à go-go 1 (Eag1) potassium channels in migration and invasion progression of cancers remains elusive. In the present study, the effects of Eag1 knockdown on osteosarcoma cell proliferation, growth, and apoptosis were examined. Then, we evaluated the effects of Eag1 silencing on osteosarcoma cell migration and invasion. In addition, we detected the expression of vascular endothelial growth factor (VEGF) and signal transducer and activator of transcription 3 (STAT3) in osteosarcoma cell treated with Eag1 small interfering RNAs (siRNAs). Finally, STAT3 siRNA was employed to determine the influence of downregulation of STAT3 on cell proliferation and migration. The results showed that knockdown of Eag1 significantly suppressed osteosarcoma cell proliferation and osteosarcoma xenografts growth. However, Eag1 silencing had little effect on cell apoptosis. Additionally, osteosarcoma cell adhesion, migration, and invasion were also potently attenuated. Notably, the expression levels of VEGF decreased evidently upon Eag1 siRNAs treatment, paralleled with reductions in the expression levels of STAT3. Moreover, a similar pattern was observed in osteosarcoma cell proliferation and migration suppression between STAT3 siRNA and Eag1 siRNAs groups. Our data indicated that Eag1 promotes osteosarcoma proliferation and migration, at least in part, by targeting STAT3-VEGF pathway.
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