101
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Faouzi M, Kilch T, Horgen FD, Fleig A, Penner R. The TRPM7 channel kinase regulates store-operated calcium entry. J Physiol 2017; 595:3165-3180. [PMID: 28130783 DOI: 10.1113/jp274006] [Citation(s) in RCA: 82] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 01/20/2017] [Indexed: 12/11/2022] Open
Abstract
KEY POINTS Pharmacological and molecular inhibition of transient receptor potential melastatin 7 (TRPM7) reduces store-operated calcium entry (SOCE). Overexpression of TRPM7 in TRPM7-/- cells restores SOCE. TRPM7 is not a store-operated calcium channel. TRPM7 kinase rather than channel modulates SOCE. TRPM7 channel activity contributes to the maintenance of store Ca2+ levels at rest. ABSTRACT The transient receptor potential melastatin 7 (TRPM7) is a protein that combines an ion channel with an intrinsic kinase domain, enabling it to modulate cellular functions either by conducting ions through the pore or by phosphorylating downstream proteins via its kinase domain. In the present study, we report store-operated calcium entry (SOCE) as a novel target of TRPM7 kinase activity. TRPM7-deficient chicken DT40 B lymphocytes exhibit a strongly impaired SOCE compared to wild-type cells as a result of reduced calcium release activated calcium currents, and independently of potassium channel regulation, membrane potential changes or changes in cell-cycle distribution. Pharmacological blockade of TRPM7 with NS8593 or waixenicin A in wild-type B lymphocytes results in a significant decrease in SOCE, confirming that TRPM7 activity is acutely linked to SOCE, without TRPM7 representing a store-operated channel itself. Using kinase-deficient mutants, we find that TRPM7 regulates SOCE through its kinase domain. Furthermore, Ca2+ influx through TRPM7 is essential for the maintenance of endoplasmic reticulum Ca2+ concentration in resting cells, and for the refilling of Ca2+ stores after a Ca2+ signalling event. We conclude that the channel kinase TRPM7 and SOCE are synergistic mechanisms regulating intracellular Ca2+ homeostasis.
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Affiliation(s)
- Malika Faouzi
- Centre for Biomedical Research, The Queen's Medical Centre, University of Hawaii Cancer Centre and John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
| | - Tatiana Kilch
- Centre for Biomedical Research, The Queen's Medical Centre, University of Hawaii Cancer Centre and John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
| | - F David Horgen
- Laboratory of Marine Biological Chemistry, Department of Natural Sciences, Hawaii Pacific University, Kaneohe, HI, USA
| | - Andrea Fleig
- Centre for Biomedical Research, The Queen's Medical Centre, University of Hawaii Cancer Centre and John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
| | - Reinhold Penner
- Centre for Biomedical Research, The Queen's Medical Centre, University of Hawaii Cancer Centre and John A. Burns School of Medicine, University of Hawaii, Honolulu, HI, USA
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102
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Moore LM, England A, Ehrlich BE, Rimm DL. Calcium Sensor, NCS-1, Promotes Tumor Aggressiveness and Predicts Patient Survival. Mol Cancer Res 2017; 15:942-952. [PMID: 28275088 DOI: 10.1158/1541-7786.mcr-16-0408] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 11/03/2016] [Accepted: 03/01/2017] [Indexed: 02/06/2023]
Abstract
Neuronal Calcium Sensor 1 (NCS-1) is a multi-functional Ca2+-binding protein that affects a range of cellular processes beyond those related to neurons. Functional characterization of NCS-1 in neuronal model systems suggests that NCS-1 may influence oncogenic processes. To this end, the biological role of NCS-1 was investigated by altering its endogenous expression in MCF-7 and MB-231 breast cancer cells. Overexpression of NCS-1 resulted in a more aggressive tumor phenotype demonstrated by a marked increase in invasion and motility, and a decrease in cell-matrix adhesion to collagen IV. Overexpression of NCS-1 was also shown to increase the efficacy of paclitaxel-induced cell death in a manner that was independent of cellular proliferation. To determine the association between NCS-1 and clinical outcome, NCS-1 expression was measured in two independent breast cancer cohorts by the Automated Quantitative Analysis method of quantitative immunofluorescence. Elevated levels of NCS-1 were significantly correlated with shorter survival rates. Furthermore, multivariate analysis demonstrated that NCS-1 status was prognostic, independent of estrogen receptor, progesterone receptor, HER2, and lymph node status. These findings indicate that NCS-1 plays a role in the aggressive behavior of a subset of breast cancers and has therapeutic or biomarker potential.Implications: NCS-1, a calcium-binding protein, is associated with clinicopathologic features of aggressiveness in breast cancer cells and worse outcome in two breast cancer patient cohorts. Mol Cancer Res; 15(7); 942-52. ©2017 AACR.
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Affiliation(s)
- Lauren M Moore
- Department of Experimental Pathology, Yale School of Medicine, New Haven, Connecticut
| | - Allison England
- Department of Experimental Pathology, Yale School of Medicine, New Haven, Connecticut
| | - Barbara E Ehrlich
- Department of Pharmacology, Yale School of Medicine, New Haven, Connecticut
| | - David L Rimm
- Department of Experimental Pathology, Yale School of Medicine, New Haven, Connecticut.
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103
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Liu W, Wang W, Tian G, Xie W, Lei L, Liu J, Huang W, Xu L, Li E. Topologically inferring pathway activity for precise survival outcome prediction: breast cancer as a case. MOLECULAR BIOSYSTEMS 2017; 13:537-548. [PMID: 28098303 DOI: 10.1039/c6mb00757k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Accurately predicting the survival outcome of patients is of great importance in clinical cancer research. In the past decade, building survival prediction models based on gene expression data has received increasing interest. However, the existing methods are mainly based on individual gene signatures, which are known to have limited prediction accuracy on independent datasets and unclear biological relevance. Here, we propose a novel pathway-based survival prediction method called DRWPSurv in order to accurately predict survival outcome. DRWPSurv integrates gene expression profiles and prior gene interaction information to topologically infer survival associated pathway activities, and uses the pathway activities as features to construct Lasso-Cox model. It uses topological importance of genes evaluated by directed random walk to enhance the robustness of pathway activities and thereby improve the predictive performance. We applied DRWPSurv on three independent breast cancer datasets and compared the predictive performance with a traditional gene-based method and four pathway-based methods. Results showed that pathway-based methods obtained comparable or better predictive performance than the gene-based method, whereas DRWPSurv could predict survival outcome with better accuracy and robustness among the pathway-based methods. In addition, the risk pathways identified by DRWPSurv provide biologically informative models for breast cancer prognosis and treatment.
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Affiliation(s)
- Wei Liu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China. and Department of Mathematics, Heilongjiang Institute of Technology, Harbin, 150050, China
| | - Wei Wang
- Department of Mathematics, Heilongjiang Institute of Technology, Harbin, 150050, China
| | - Guohua Tian
- Department of Mathematics, Heilongjiang Institute of Technology, Harbin, 150050, China
| | - Wenming Xie
- Network Information Center, Shantou University Medical College, Shantou, 515041, China
| | - Li Lei
- Network Information Center, Shantou University Medical College, Shantou, 515041, China
| | - Jiujin Liu
- Network Information Center, Shantou University Medical College, Shantou, 515041, China
| | - Wanxun Huang
- Network Information Center, Shantou University Medical College, Shantou, 515041, China
| | - Liyan Xu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China. and Institute of Oncologic Pathology, Shantou University Medical College, Shantou, 515041, China
| | - Enmin Li
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou, 515041, China. and Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, China
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104
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Nicoletti NF, Erig TC, Zanin RF, Roxo MR, Ferreira NP, Gomez MV, Morrone FB, Campos MM. Pre-clinical evaluation of voltage-gated calcium channel blockers derived from the spider P. nigriventer in glioma progression. Toxicon 2017; 129:58-67. [PMID: 28202361 DOI: 10.1016/j.toxicon.2017.02.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 02/01/2017] [Accepted: 02/02/2017] [Indexed: 01/30/2023]
Abstract
This study investigated the effects of P/Q- and N-type voltage-gated calcium channel (VGCC) blockers derived from P. nigriventer in glioma progression, by means of in vitro and in vivo experiments. Glioma cells M059J, U-138MG and U-251MG were used to evaluate the antiproliferative effects of P/Q- and N-type VGCC inhibitors PhTx3-3 and Phα1β from P. nigriventer (0.3-100 pM), in comparison to MVIIC and MVIIA from C. magus (0.3-100 pM), respectively. The toxins were also analyzed in a glioma model induced by implantation of GL261 mouse cells. PhTx3-3, Phα1β and MVIIA displayed significant inhibitory effects on the proliferation and viability of all tested glioma cell lines, and evoked cell death mainly with apoptosis characteristics, as indicated by Annexin V/propidium iodide (PI) positivity. The antiproliferative effects of toxins were confirmed by flow cytometry using Ki67 staining. None of the tested toxins altered the proliferation rates of the N9 non-tumor glial cell line. Noteworthy, the administration of the preferential N-type VGCC inhibitors, Phα1β (50 pmol/site; i.c.v.), its recombinant form CTK 01512-2 (50 pmol/site; i.c.v. and i.t.), or MVIIA (10 pmol/site; i.c.v.) caused significant reductions of tumor areas in vivo. N-type VGCC inhibition by Phα1β, CTK 01512-2, and MVIIA led to a marked increase of GFAP-activated astrocytes, and Iba-1-positive microglia, in the peritumoral region, which might explain, at least in part, the inhibitory effects of the toxins in tumor development. This study provides novel evidence on the potential effects of P. nigriventer-derived P/Q-, and mainly, N-type VGCC inhibitors, in glioma progression.
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Affiliation(s)
- Natália Fontana Nicoletti
- PUCRS, Programa de Pós-Graduação em Biologia Celular e Molecular, Porto Alegre, RS, Brazil; PUCRS, Instituto de Toxicologia e Farmacologia, Porto Alegre, RS, Brazil
| | | | - Rafael Fernandes Zanin
- PUCRS, Programa de Pós-Graduação em Biologia Celular e Molecular, Porto Alegre, RS, Brazil
| | - Marcelo Ricardo Roxo
- Serviço de Neurocirurgia, Hospital São José, Irmandade da Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil; UCS, Faculdade de Medicina, Departamento de Neurocirurgia, Caxias do Sul, RS, Brazil
| | - Nelson Pires Ferreira
- Serviço de Neurocirurgia, Hospital São José, Irmandade da Santa Casa de Misericórdia de Porto Alegre, Porto Alegre, RS, Brazil
| | - Marcus Vinicius Gomez
- UFMG, Faculdade de Medicina, Laboratório de Neurociências, Belo Horizonte, MG, Brazil
| | - Fernanda Bueno Morrone
- PUCRS, Programa de Pós-Graduação em Biologia Celular e Molecular, Porto Alegre, RS, Brazil; PUCRS, Instituto de Toxicologia e Farmacologia, Porto Alegre, RS, Brazil; PUCRS, Faculdade de Farmácia, Porto Alegre, RS, Brazil
| | - Maria Martha Campos
- PUCRS, Programa de Pós-Graduação em Biologia Celular e Molecular, Porto Alegre, RS, Brazil; PUCRS, Instituto de Toxicologia e Farmacologia, Porto Alegre, RS, Brazil; PUCRS, Faculdade de Odontologia, Laboratório de Patologia, Porto Alegre, RS, Brazil.
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105
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Kadio B, Yaya S, Basak A, Djè K, Gomes J, Mesenge C. Calcium role in human carcinogenesis: a comprehensive analysis and critical review of literature. Cancer Metastasis Rev 2017; 35:391-411. [PMID: 27514544 DOI: 10.1007/s10555-016-9634-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The central role played by calcium ion in biological systems has generated an interest for its potential implication in human malignancies. Thus, lines of research, on possible association of calcium metabolism regulation with tumorigenesis, implying disruptions and/or alterations of known molecular pathways, have been extensively researched in the recent decades. This paper is a critical synthesis of these findings, based on a functional approach of the calcium signaling toolkit. It provides strong support that this ubiquitous divalent cation is involved in cancer initiation, promotion, and progression. Different pathways have been outlined, involving equally different molecular and cellular structures. However, if the association between calcium and cancer can be described as constant, it is not always linear. We have identified several influencing factors among which the most relevant are (i) the changes in local or tissular concentrations of free calcium and (ii) the histological and physiological types of tissue involved. Such versatility at the molecular level may probably account for the conflicting findings reported by the epidemiological literature on calcium dietary intake and the risk to develop certain cancers such as the prostatic or mammary neoplasms. However, it also fuels the hypothesis that behind each cancer, a specific calcium pathway can be evidenced. Identifying such molecular interactions is probably a promising approach for further understanding and treatment options for the disease.
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Affiliation(s)
- Bernard Kadio
- Interdisciplinary School of Health Sciences, Faculty of Health Science, University of Ottawa, Ottawa, Canada
| | - Sanni Yaya
- School of International Development and Global Studies, Faculty of Social Sciences, University of Ottawa, Social Science Building, 120 University Private, Ottawa, ON, K1N 6N5, Canada.
| | - Ajoy Basak
- Chronic Disease Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Canada
- Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, Canada
| | - Koffi Djè
- Faculty of Médecine, Department of Urology, Allasane Ouattara University, Bouaké, Ivory Coast
| | - James Gomes
- Interdisciplinary School of Health Sciences, University of Ottawa, Ottawa, Canada
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106
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Kerkhofs M, Giorgi C, Marchi S, Seitaj B, Parys JB, Pinton P, Bultynck G, Bittremieux M. Alterations in Ca 2+ Signalling via ER-Mitochondria Contact Site Remodelling in Cancer. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 997:225-254. [PMID: 28815534 DOI: 10.1007/978-981-10-4567-7_17] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inter-organellar contact sites establish microdomains for localised Ca2+-signalling events. One of these microdomains is established between the ER and the mitochondria. Importantly, the so-called mitochondria-associated ER membranes (MAMs) contain, besides structural proteins and proteins involved in lipid exchange, several Ca2+-transport systems, mediating efficient Ca2+ transfer from the ER to the mitochondria. These Ca2+ signals critically control several mitochondrial functions, thereby impacting cell metabolism, cell death and survival, proliferation and migration. Hence, the MAMs have emerged as critical signalling hubs in physiology, while their dysregulation is an important factor that drives or at least contributes to oncogenesis and tumour progression. In this book chapter, we will provide an overview of the role of the MAMs in cell function and how alterations in the MAM composition contribute to oncogenic features and behaviours.
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Affiliation(s)
- Martijn Kerkhofs
- Laboratory Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine and Leuven Kanker Instituut (LKI), KU Leuven, Campus Gasthuisberg O&N 1 Box 802, Herestraat 49, 3000, Leuven, Belgium
| | - Carlotta Giorgi
- Laboratory for Technologies of Advanced Therapies (LTTA), Department of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology, University of Ferrara, Ferrara, Italy
| | - Saverio Marchi
- Laboratory for Technologies of Advanced Therapies (LTTA), Department of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology, University of Ferrara, Ferrara, Italy
| | - Bruno Seitaj
- Laboratory Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine and Leuven Kanker Instituut (LKI), KU Leuven, Campus Gasthuisberg O&N 1 Box 802, Herestraat 49, 3000, Leuven, Belgium
| | - Jan B Parys
- Laboratory Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine and Leuven Kanker Instituut (LKI), KU Leuven, Campus Gasthuisberg O&N 1 Box 802, Herestraat 49, 3000, Leuven, Belgium
| | - Paolo Pinton
- Laboratory for Technologies of Advanced Therapies (LTTA), Department of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology, University of Ferrara, Ferrara, Italy
| | - Geert Bultynck
- Laboratory Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine and Leuven Kanker Instituut (LKI), KU Leuven, Campus Gasthuisberg O&N 1 Box 802, Herestraat 49, 3000, Leuven, Belgium.
| | - Mart Bittremieux
- Laboratory Molecular and Cellular Signaling, Department of Cellular and Molecular Medicine and Leuven Kanker Instituut (LKI), KU Leuven, Campus Gasthuisberg O&N 1 Box 802, Herestraat 49, 3000, Leuven, Belgium
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107
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Abstract
Role of calcium in bone remodeling and tooth remineral-ization is well known. However, calcium also plays a very imperative role in many biochemical reactions, which are essential for normal functioning of cells. The calcium associated tissue homeostasis encompasses activities like proliferation, cell death, cell motility, oxygen, and nutrient supply.
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Affiliation(s)
- Gargi S Sarode
- Department of Oral Pathology and Microbiology, Dr. D.Y. Patil Dental College and Hospital, Dr. D.Y. Patil Vidyapeeth, Pune, Maharashtra, India
| | - Sachin C Sarode
- Department of Oral Pathology and Microbiology, Dr. D.Y. Patil Dental College and Hospital, Dr. D.Y. Patil Vidyapeeth, Pune, Maharashtra, India, Phone: +919922491465 e-mail:
| | - Shankargouda Patil
- Department of Maxillofacial Surgery and Diagnostic Sciences Division of Oral Pathology, College of Dentistry, Jazan University Jazan, Kingdom of Saudi Arabia
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108
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Mechanistic Study of Tetrahydrofuran- acetogenins In Triggering Endoplasmic Reticulum Stress Response-apotoposis in Human Nasopharyngeal Carcinoma. Sci Rep 2016; 6:39251. [PMID: 28000792 PMCID: PMC5175284 DOI: 10.1038/srep39251] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 11/22/2016] [Indexed: 12/27/2022] Open
Abstract
For past three decades, numerous studies have elucidated the antiproliferative effects of acetogenins in hopes of developing a new class of clinical anticancer agents. However, clear and definitive action mechanisms of acetogenins were less clarified. In the present study, three tetrahydrofuran (THF)-containing acetogenins were found to have potent and selective antiproliferative activity against human nasopharyngeal carcinoma (NPC) cell lines and their methotrexate-resistant counterparts. The THF-containing acetogenins induced G2/M phase arrest, mitochondrial damage and apoptosis, and increased cytosolic and mitochondrial Ca2+ in NPCs. Microarray analysis of NPC-TW01 cells treated with squamostatin A, a non-adjacent bis-THF acetogenin, demonstrated an increased endoplasmic reticulum (ER)-stress response (ESR). Enhanced ESR in squamostatin A-treated cells was confirmed by real-time PCR, Western blot and shRNA gene knockdown experiments. Although our results showed that squamostatin A-induced ESR was independent of extracellular Ca2+, the presence of extracellular Ca2+ enhanced the antiproliferative effect of acetogenins. In vivo analyses demonstrated that squamostatin A showed good pharmacokinetic properties and significantly retarded NPC tumor growth in the xenograft mouse model. Conclusively, our work demonstrates that acetogenins are effective and selective inducers of the ESR that can block NPC proliferation, and illustrate a previously unappreciated antitumor mechanism of acetogenins that is effective against nasopharyngeal malignancies.
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109
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Huang W, Ren C, Huang G, Liu J, Liu W, Wang L, Zhu B, Feng X, Shi J, Li J, Xia X, Jia W, Chen J, Chen Y, Jiang X. Inhibition of store-operated Ca 2+ entry counteracts the apoptosis of nasopharyngeal carcinoma cells induced by sodium butyrate. Oncol Lett 2016; 13:921-929. [PMID: 28356979 DOI: 10.3892/ol.2016.5469] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 09/27/2016] [Indexed: 12/23/2022] Open
Abstract
Sodium butyrate (NaBu), a histone deacetylase inhibitor, has demonstrated anti-tumor effects in several cancers, and is a promising candidate chemotherapeutic agent. However, its roles in nasopharyngeal carcinoma (NPC), an endemic malignant disease in Southern China and Southeast Asia, has rarely been studied. In the present study, MTT assay, colony formation assay, flow cytometry analysis and western blotting were performed to explore the influence of NaBu on NPC cells and its underlying mechanism. NaBu induced morphological changes and inhibited proliferation in 5-8F and 6-10B cells. MTT assay revealed that NaBu was cytotoxic to 5-8F and 6-10B cells in a dose- and time-dependent manner. Furthermore, flow cytometry analysis revealed that NaBu induced obvious cell apoptosis in 5-8F and 6-10B cells due to the activation of the mitochondrial apoptosis axis. In addition, flow cytometry analysis and western blotting demonstrated that NaBu could enhance the Ca2+ influx by promoting store-operated Ca2+ entry (SOCE) in 5-8F and 6-10B cells. Inhibition of SOCE by specific inhibitors or downregulated expression of calcium release-activated calcium channel protein 1 and stromal interaction molecule 1 could counteract the apoptosis of NPC cells induced by NaBu. Thus, the current study revealed that enhanced SOCE and activated mitochondrial apoptosis axis may account for the mechanisms of cytotoxicity of NaBu in NPC cells, and that NaBu serves as a promising chemotherapeutic agent in NPC therapy.
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Affiliation(s)
- Wei Huang
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China; Research Center of Carcinogenesis and Targeted Therapy, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Caiping Ren
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China
| | - Guoling Huang
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China
| | - Jie Liu
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China
| | - Weidong Liu
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China
| | - Lei Wang
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China
| | - Bin Zhu
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xiangling Feng
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China
| | - Jia Shi
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China
| | - Jinlong Li
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xiaomeng Xia
- Department of Gynecology and Obstetrics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Wei Jia
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China
| | - Jiawen Chen
- Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, Xiangya Hospital, Changsha, Hunan 410008, P.R. China; Cancer Research Institute, Collaborative Innovation Center for Cancer Medicine, School of Basic Medical Science, Central South University, Changsha, Hunan 410008, P.R. China
| | - Yuxiang Chen
- School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410008, P.R. China
| | - Xingjun Jiang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
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110
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Hegedũs L, Garay T, Molnár E, Varga K, Bilecz Á, Török S, Padányi R, Pászty K, Wolf M, Grusch M, Kállay E, Döme B, Berger W, Hegedũs B, Enyedi A. The plasma membrane
C
a
2+
pump
PMCA
4b inhibits the migratory and metastatic activity of
BRAF
mutant melanoma cells. Int J Cancer 2016; 140:2758-2770. [DOI: 10.1002/ijc.30503] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 10/24/2016] [Indexed: 01/06/2023]
Affiliation(s)
- Luca Hegedũs
- Department of Pathophysiology and Allergy ResearchComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
| | - Tamás Garay
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
- Department of Biological PhysicsEötvös UniversityBudapest Hungary
| | - Eszter Molnár
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
| | - Karolina Varga
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
| | - Ágnes Bilecz
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
| | - Szilvia Török
- National Koranyi Institute of PulmonologyBudapest Hungary
| | - Rita Padányi
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
| | - Katalin Pászty
- Molecular Biophysics Research Group of the Hungarian Academy of Sciences and Department of BiophysicsSemmelweis UniversityBudapest Hungary
| | - Matthias Wolf
- Department of Medicine I, Institute of Cancer ResearchComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
| | - Michael Grusch
- Department of Medicine I, Institute of Cancer ResearchComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
| | - Enikõ Kállay
- Department of Pathophysiology and Allergy ResearchComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
| | - Balázs Döme
- National Koranyi Institute of PulmonologyBudapest Hungary
- Department of Surgery, Division of Thoracic SurgeryComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
- Department of Thoracic SurgeryNational Institute of Oncology‐Semmelweis UniversityBudapest, Hungary
- Department of Biomedical Imaging and Image‐guided TherapyMedical University of ViennaVienna Austria
| | - Walter Berger
- Department of Medicine I, Institute of Cancer ResearchComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
| | - Balázs Hegedũs
- Department of Surgery, Division of Thoracic SurgeryComprehensive Cancer Center Vienna, Medical University of ViennaVienna Austria
- Department of Thoracic SurgeryRuhrlandklinik, University Clinic EssenEssen Germany
- Molecular Oncology Research Group of the Hungarian Academy of Sciences and 2nd Department of Pathology, Semmelweis UniversityBudapest Hungary
| | - Agnes Enyedi
- 2nd Department of PathologySemmelweis UniversityBudapest, Hungary
- Molecular Oncology Research Group of the Hungarian Academy of Sciences and 2nd Department of Pathology, Semmelweis UniversityBudapest Hungary
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Orai1 and Orai2 mediate store-operated calcium entry that regulates HL60 cell migration and FAK phosphorylation. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1864:1064-1070. [PMID: 27865925 DOI: 10.1016/j.bbamcr.2016.11.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 10/07/2016] [Accepted: 11/11/2016] [Indexed: 12/12/2022]
Abstract
Store-operated Ca2+ entry (SOCE) is a major mechanism for the regulation of intracellular Ca2+ homeostasis and cellular function. Emerging evidence has revealed that altered expression and function of the molecular determinants of SOCE play a critical role in the development or maintenance of several cancer hallmarks, including enhanced proliferation and migration. Here we show that, in the acute myeloid leukemia cell line HL60, Orai2 is highly expressed at the transcript level, followed by the expression of Orai1. Using fluorescence Ca2+ imaging we found that Orai2 silencing significantly attenuated thapsigargin-induced SOCE, as well as knockdown of Orai1, while silencing the expression of both channels almost completely reduced SOCE, thus suggesting that SOCE in these cells is strongly dependent on Orai1 and Orai2. On the other hand, the expression of TRPC1, TRPC3 and TRPC6 is almost absent at the transcript and protein level. Bromodeoxyuridine cell proliferation assay revealed that Orai1 and Orai2 expression silencing significantly reduced HL60 cell proliferation. Furthermore, knockdown of Orai1 and Orai2 significantly attenuated the ability of HL60 to migrate in vitro as determined by transwell migration assay, probably due to the impairment of FAK tyrosine phosphorylation. These findings provide evidence for a role for Orai1 and Orai2, in SOCE and migration in the human HL60 promyeloblastic cell line. This article is part of a Special Issue entitled: ECS Meeting edited by Claus Heizmann, Joachim Krebs and Jacques Haiech.
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Chi M, Evans H, Gilchrist J, Mayhew J, Hoffman A, Pearsall EA, Jankowski H, Brzozowski JS, Skelding KA. Phosphorylation of calcium/calmodulin-stimulated protein kinase II at T286 enhances invasion and migration of human breast cancer cells. Sci Rep 2016; 6:33132. [PMID: 27605043 PMCID: PMC5015093 DOI: 10.1038/srep33132] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 08/22/2016] [Indexed: 01/01/2023] Open
Abstract
Calcium/calmodulin-stimulated protein kinase II (CaMKII) is a multi-functional kinase that controls a range of cellular functions, including proliferation, differentiation and apoptosis. The biological properties of CaMKII are regulated by multi-site phosphorylation. However, the role that CaMKII phosphorylation plays in cancer cell metastasis has not been examined. We demonstrate herein that CaMKII expression and phosphorylation at T286 is increased in breast cancer when compared to normal breast tissue, and that increased CAMK2 mRNA is associated with poor breast cancer patient prognosis (worse overall and distant metastasis free survival). Additionally, we show that overexpression of WT, T286D and T286V forms of CaMKII in MDA-MB-231 and MCF-7 breast cancer cells increases invasion, migration and anchorage independent growth, and that overexpression of the T286D phosphomimic leads to a further increase in the invasive, migratory and anchorage independent growth capacity of these cells. Pharmacological inhibition of CaMKII decreases MDA-MB-231 migration and invasion. Furthermore, we demonstrate that overexpression of T286D, but not WT or T286V-CaMKII, leads to phosphorylation of FAK, STAT5a, and Akt. These results demonstrate a novel function for phosphorylation of CaMKII at T286 in the control of breast cancer metastasis, offering a promising target for the development of therapeutics to prevent breast cancer metastasis.
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Affiliation(s)
- Mengna Chi
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia
- Priority Research Centre for Cancer, Hunter Medical Research Institute, Faculty of Health, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Hamish Evans
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Jackson Gilchrist
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Jack Mayhew
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Alexander Hoffman
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Elizabeth Ann Pearsall
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia
- Priority Research Centre for Cancer, Hunter Medical Research Institute, Faculty of Health, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Helen Jankowski
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia
- Priority Research Centre for Cancer, Hunter Medical Research Institute, Faculty of Health, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Joshua Stephen Brzozowski
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia
- Priority Research Centre for Cancer, Hunter Medical Research Institute, Faculty of Health, The University of Newcastle, Callaghan, New South Wales, Australia
| | - Kathryn Anne Skelding
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, The University of Newcastle, Callaghan, New South Wales, Australia
- Priority Research Centre for Cancer, Hunter Medical Research Institute, Faculty of Health, The University of Newcastle, Callaghan, New South Wales, Australia
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Calcium signaling mechanisms disrupt the cytoskeleton of primary astrocytes and neurons exposed to diphenylditelluride. Biochim Biophys Acta Gen Subj 2016; 1860:2510-2520. [PMID: 27475002 DOI: 10.1016/j.bbagen.2016.07.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 06/20/2016] [Accepted: 07/25/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND Diphenylditelluride (PhTe)2 is a potent neurotoxin disrupting the homeostasis of the cytoskeleton. METHODS Cultured astrocytes and neurons were incubated with (PhTe)2, receptor antagonists and enzyme inhibitors followed by measurement of the incorporation of [32P]orthophosphate into intermediate filaments (IFs). RESULTS (PhTe)2 caused hyperphosphorylation of glial fibrillary acidic protein (GFAP), vimentin and neurofilament subunits (NFL, NFM and NFH) from primary astrocytes and neurons, respectively. These mechanisms were mediated by N-methyl-d-aspartate (NMDA) receptors, L-type voltage-dependent calcium channels (L-VDCCs) as well as metabotropic glutamate receptors upstream of phospholipase C (PLC). Upregulated Ca(2+) influx activated protein kinase A (PKA) and protein kinase C (PKC) in astrocytes causing hyperphosphorylation of GFAP and vimentin. Hyperphosphorylated (IF) together with RhoA-activated stress fiber formation, disrupted the cytoskeleton leading to altered cell morphology. In neurons, the high intracellular Ca(2+) levels activated the MAPKs, Erk and p38MAPK, beyond PKA and PKC, provoking hyperphosphorylation of NFM, NFH and NFL. CONCLUSIONS Our findings support that intracellular Ca(2+) is one of the crucial signals that modulate the action of (PhTe)2 in isolated cortical astrocytes and neurons modulating the response of the cytoskeleton against the insult. GENERAL SIGNIFICANCE Cytoskeletal misregulation is associated with neurodegeneration. This compound could be a valuable tool to induce molecular changes similar to those found in different pathologies of the brain.
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Morrone FB, Gehring MP, Nicoletti NF. Calcium Channels and Associated Receptors in Malignant Brain Tumor Therapy. Mol Pharmacol 2016; 90:403-9. [PMID: 27418672 DOI: 10.1124/mol.116.103770] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Accepted: 07/11/2016] [Indexed: 12/25/2022] Open
Abstract
Malignant brain tumors are highly lethal and aggressive. Despite recent advances in the current therapies, which include the combination of surgery and radio/chemotherapy, the average survival rate remains poor. Altered regulation of ion channels is part of the neoplastic transformation, which suggests that ion channels are involved in cancer. Distinct classes of calcium-permeable channels are abnormally expressed in cancer and are likely involved in the alterations underlying malignant growth. Specifically, cytosolic Ca(2+) activity plays an important role in the regulation of cell proliferation, and Ca(2+) signaling is altered in proliferating tumor cells. A series of previous studies emphasized the importance of the T-type low-voltage-gated calcium channels (VGCC) in different cancer types, including gliomas, and remarkably, pharmacologic inhibition of T-type VGCC caused antiproliferative effects and triggered apoptosis of human glioma cells. Other calcium permeable channels, such as transient receptor potential (TRP) channels, contribute to changes in Ca(2+) by modulating the driving force for Ca(2+) entry, and some TRP channels are required for proliferation and migration in gliomas. Furthermore, recent evidence shows that TRP channels contribute to the progression and survival of the glioblastoma patients. Likewise, the purinergic P2X7 receptor acts as a direct conduit for Ca(2+)-influx and an indirect activator of voltage-gated Ca(2+)-channel. Evidence also shows that P2X7 receptor activation is linked to elevated expression of inflammation promoting factors, tumor cell migration, an increase in intracellular mobilization of Ca(2+), and membrane depolarization in gliomas. Therefore, this review summarizes the recent findings on calcium channels and associated receptors as potential targets to treat malignant gliomas.
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Affiliation(s)
- Fernanda B Morrone
- Programa de Pós-graduação em Biologia Celular e Molecular (F.B.M., M.P.G., N.F.N), Programa de Pós-graduação em Medicina e Ciências da Saúde, Faculdade de Farmácia, Pontifícia Universidade Católica do RS, Porto Alegre (F.B.M.); Laboratório de Terapia Celular, Centro de Ciências Biológicas e da Saúde, Universidade de Caxias do Sul, Caxias do Sul (N.F.N.), Brasil
| | - Marina P Gehring
- Programa de Pós-graduação em Biologia Celular e Molecular (F.B.M., M.P.G., N.F.N), Programa de Pós-graduação em Medicina e Ciências da Saúde, Faculdade de Farmácia, Pontifícia Universidade Católica do RS, Porto Alegre (F.B.M.); Laboratório de Terapia Celular, Centro de Ciências Biológicas e da Saúde, Universidade de Caxias do Sul, Caxias do Sul (N.F.N.), Brasil
| | - Natália F Nicoletti
- Programa de Pós-graduação em Biologia Celular e Molecular (F.B.M., M.P.G., N.F.N), Programa de Pós-graduação em Medicina e Ciências da Saúde, Faculdade de Farmácia, Pontifícia Universidade Católica do RS, Porto Alegre (F.B.M.); Laboratório de Terapia Celular, Centro de Ciências Biológicas e da Saúde, Universidade de Caxias do Sul, Caxias do Sul (N.F.N.), Brasil
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115
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Kori M, Gov E, Arga KY. Molecular signatures of ovarian diseases: Insights from network medicine perspective. Syst Biol Reprod Med 2016; 62:266-82. [PMID: 27341345 DOI: 10.1080/19396368.2016.1197982] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Dysfunctions and disorders in the ovary lead to a host of diseases including ovarian cancer, ovarian endometriosis, and polycystic ovarian syndrome (PCOS). Understanding the molecular mechanisms behind ovarian diseases is a great challenge. In the present study, we performed a meta-analysis of transcriptome data for ovarian cancer, ovarian endometriosis, and PCOS, and integrated the information gained from statistical analysis with genome-scale biological networks (protein-protein interaction, transcriptional regulatory, and metabolic). Comparative and integrative analyses yielded reporter biomolecules (genes, proteins, metabolites, transcription factors, and micro-RNAs), and unique or common signatures at protein, metabolism, and transcription regulation levels, which might be beneficial to uncovering the underlying biological mechanisms behind the diseases. These signatures were mostly associated with formation or initiation of cancer development, and pointed out the potential tendency of PCOS and endometriosis to tumorigenesis. Molecules and pathways related to MAPK signaling, cell cycle, and apoptosis were the mutual determinants in the pathogenesis of all three diseases. To our knowledge, this is the first report that screens these diseases from a network medicine perspective. This study provides signatures which could be considered as potential therapeutic targets and/or as medical prognostic biomarkers in further experimental and clinical studies. Abbreviations DAVID: Database for Annotation, Visualization and Integrated Discovery; DEGs: differentially expressed genes; GEO: Gene Expression Omnibus; KEGG: Kyoto Encyclopedia of Genes and Genomes; LIMMA: Linear Models for Microarray Data; MBRole: Metabolite Biological Role; miRNA: micro-RNA; PCOS: polycystic ovarian syndrome; PPI: protein-protein interaction; RMA: Robust Multi-Array Average; TF: transcription factor.
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Affiliation(s)
- Medi Kori
- a Department of Bioengineering , Marmara University , Istanbul , Turkey
| | - Esra Gov
- a Department of Bioengineering , Marmara University , Istanbul , Turkey
| | - Kazim Yalcin Arga
- a Department of Bioengineering , Marmara University , Istanbul , Turkey
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116
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OncoScape: Exploring the cancer aberration landscape by genomic data fusion. Sci Rep 2016; 6:28103. [PMID: 27321817 PMCID: PMC4913322 DOI: 10.1038/srep28103] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 05/25/2016] [Indexed: 01/22/2023] Open
Abstract
Although large-scale efforts for molecular profiling of cancer samples provide multiple data types for many samples, most approaches for finding candidate cancer genes rely on somatic mutations and DNA copy number only. We present a new method, OncoScape, which exploits five complementary data types across 11 cancer types to identify new candidate cancer genes. We find many rarely mutated genes that are strongly affected by other aberrations. We retrieve the majority of known cancer genes but also new candidates such as STK31 and MSRA with very high confidence. Several genes show a dual oncogene- and tumor suppressor-like behavior depending on the tumor type. Most notably, the well-known tumor suppressor RB1 shows strong oncogene-like signal in colon cancer. We applied OncoScape to cell lines representing ten cancer types, providing the most comprehensive comparison of aberrations in cell lines and tumor samples to date. This revealed that glioblastoma, breast and colon cancer show strong similarity between cell lines and tumors, while head and neck squamous cell carcinoma and bladder cancer, exhibit very little similarity between cell lines and tumors. To facilitate exploration of the cancer aberration landscape, we created a web portal enabling interactive analysis of OncoScape results (http://ccb.nki.nl/software/oncoscape).
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117
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Lee WH, Choong LY, Mon NN, Lu S, Lin Q, Pang B, Yan B, Krishna VSR, Singh H, Tan TZ, Thiery JP, Lim CT, Tan PBO, Johansson M, Harteneck C, Lim YP. TRPV4 Regulates Breast Cancer Cell Extravasation, Stiffness and Actin Cortex. Sci Rep 2016; 6:27903. [PMID: 27291497 PMCID: PMC4904279 DOI: 10.1038/srep27903] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 05/26/2016] [Indexed: 12/28/2022] Open
Abstract
Metastasis is a significant health issue. The standard mode of care is combination of chemotherapy and targeted therapeutics but the 5-year survival rate remains low. New/better drug targets that can improve outcomes of patients with metastatic disease are needed. Metastasis is a complex process, with each step conferred by a set of genetic aberrations. Mapping the molecular changes associated with metastasis improves our understanding of the etiology of this disease and contributes to the pipeline of targeted therapeutics. Here, phosphoproteomics of a xenograft-derived in vitro model comprising 4 isogenic cell lines with increasing metastatic potential implicated Transient Receptor Potential Vanilloid subtype 4 in breast cancer metastasis. TRPV4 mRNA levels in breast, gastric and ovarian cancers correlated with poor clinical outcomes, suggesting a wide role of TRPV4 in human epithelial cancers. TRPV4 was shown to be required for breast cancer cell invasion and transendothelial migration but not growth/proliferation. Knockdown of Trpv4 significantly reduced the number of metastatic nodules in mouse xenografts leaving the size unaffected. Overexpression of TRPV4 promoted breast cancer cell softness, blebbing, and actin reorganization. The findings provide new insights into the role of TRPV4 in cancer extravasation putatively by reducing cell rigidity through controlling the cytoskeleton at the cell cortex.
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Affiliation(s)
- Wen Hsin Lee
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Lee Yee Choong
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Naing Naing Mon
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - SsuYi Lu
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Qingsong Lin
- Department of Biological Sciences, Faculty of Science, National University of Singapore, Singapore
| | - Brendan Pang
- Cancer Science Institute of Singapore, Singapore
| | - Benedict Yan
- National University Hospital, Department of Laboratory Medicine, Singapore
| | | | - Himanshu Singh
- Department of Biomedical Engineering, National University of Singapore, Singapore
| | - Tuan Zea Tan
- Cancer Science Institute of Singapore, Singapore
| | - Jean Paul Thiery
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Cancer Science Institute of Singapore, Singapore
| | - Chwee Teck Lim
- Mechanobiology Institute, National University of Singapore, Singapore
- Department of Biomedical Engineering, National University of Singapore, Singapore
| | | | | | - Christian Harteneck
- Department of Pharmacology and Experimental Therapy, Institute of Experimental and Clinical Pharmacology and Toxicology, Eberhard Karls University Hospitals and Clinics, Tübingen, Germany
| | - Yoon Pin Lim
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore
- National University Cancer Institute, National University Health System, Singapore
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Gaunt HJ, Vasudev NS, Beech DJ. Transient receptor potential canonical 4 and 5 proteins as targets in cancer therapeutics. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2016; 45:611-620. [PMID: 27289383 PMCID: PMC5045487 DOI: 10.1007/s00249-016-1142-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 05/12/2016] [Accepted: 05/16/2016] [Indexed: 12/05/2022]
Abstract
Novel approaches towards cancer therapy are urgently needed. One approach might be to target ion channels mediating Ca2+ entry because of the critical roles played by Ca2+ in many cell types, including cancer cells. There are several types of these ion channels, but here we address those formed by assembly of transient receptor potential canonical (TRPC) proteins, particularly those which involve two closely related members of the family: TRPC4 and TRPC5. We focus on these proteins because recent studies point to roles in important aspects of cancer: drug resistance, transmission of drug resistance through extracellular vesicles, tumour vascularisation, and evoked cancer cell death by the TRPC4/5 channel activator (−)-englerin A. We conclude that further research is both justified and necessary before these proteins can be considered as strong targets for anti-cancer cell drug discovery programmes. It is nevertheless already apparent that inhibitors of the channels would be unlikely to cause significant adverse effects, but, rather, have other effects which may be beneficial in the context of cancer and chemotherapy, potentially including suppression of innate fear, visceral pain and pathological cardiac remodelling.
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Affiliation(s)
- Hannah J Gaunt
- School of Medicine, University of Leeds, LIGHT Building, Clarendon Way, Leeds, LS2 9JT, UK.
| | - Naveen S Vasudev
- School of Medicine, University of Leeds, LIGHT Building, Clarendon Way, Leeds, LS2 9JT, UK
| | - David J Beech
- School of Medicine, University of Leeds, LIGHT Building, Clarendon Way, Leeds, LS2 9JT, UK.
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119
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Chen YF, Hsu KF, Shen MR. The store-operated Ca 2+ entry-mediated signaling is important for cancer spread. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:1427-35. [DOI: 10.1016/j.bbamcr.2015.11.030] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 11/17/2015] [Accepted: 11/25/2015] [Indexed: 12/31/2022]
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120
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PMCA2 regulates HER2 protein kinase localization and signaling and promotes HER2-mediated breast cancer. Proc Natl Acad Sci U S A 2016; 113:E282-90. [PMID: 26729871 DOI: 10.1073/pnas.1516138113] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
In the lactating mammary gland, the plasma membrane calcium ATPase2 (PMCA2) transports milk calcium. Its expression is activated in breast cancers, where high tumor levels predict increased mortality. We find that PMCA2 expression correlates with HER2 levels in breast cancers and that PMCA2 interacts with HER2 in specific actin-rich membrane domains. Knocking down PMCA2 increases intracellular calcium, disrupts interactions between HER2 and HSP-90, inhibits HER2 signaling, and results in internalization and degradation of HER2. Manipulating PMCA2 levels regulates the growth of breast cancer cells, and knocking out PMCA2 inhibits the formation of tumors in mouse mammary tumor virus (MMTV)-Neu mice. These data reveal previously unappreciated molecular interactions regulating HER2 localization, membrane retention, and signaling, as well as the ability of HER2 to generate breast tumors, suggesting that interactions between PMCA2 and HER2 may represent therapeutic targets for breast cancer.
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122
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Schäfer S, Ferioli S, Hofmann T, Zierler S, Gudermann T, Chubanov V. Mibefradil represents a new class of benzimidazole TRPM7 channel agonists. Pflugers Arch 2015; 468:623-34. [PMID: 26669310 DOI: 10.1007/s00424-015-1772-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 12/02/2015] [Accepted: 12/04/2015] [Indexed: 01/16/2023]
Abstract
Transient receptor potential cation channel, subfamily M, member 7 (TRPM7) is a bi-functional protein comprising an ion channel moiety covalently linked to a protein kinase domain. Currently, the prevailing view is that a decrease in the cytosolic Mg(2+) concentration leads to activation of divalent cation-selective TRPM7 currents. TRPM7 plays a role in immune responses, hypotension, tissue fibrosis, and tumor progression and, therefore, represents a new promising therapeutic target. Because of the dearth of pharmacological tools, our mechanistic understanding of the role of TRPM7 in physiology and pathophysiology still lags behind. Therefore, we have recently carried out a high throughput screen for small-molecule activators of TRPM7. We have characterized the phenanthrene naltriben as a first stimulatory agonist of the TRPM7 channel. Surprisingly, the effect of naltriben on TRPM7 was found to be unaffected by the physiological levels of cytosolic Mg(2+). Here, we demonstrate that mibefradil and NNC 50-0396, two benzimidazole relatives of the TRPM7 inhibitor NS8593, are positive modulators of TRPM7. Using Ca(2+) imaging and the patch-clamp technique, we show that mibefradil activates TRPM7-mediated Ca(2+) entry and whole-cell currents. The response to mibefradil was fast, reversible, and reproducible. In contrast to naltriben, mibefradil efficiently activates TRPM7 currents only at physiological intracellular Mg(2+) concentrations, and its stimulatory effect was fully abrogated by high internal Mg(2+) levels. Consequently, a TRPM7 variant harboring a gain-of-function mutation was insensitive to further mibefradil activation. Finally, we observed that the effect of mibefradil was selective for TRPM7 when various TRP channels were tested. Taken together, mibefradil acts as a Mg(2+)-regulated agonist of the TRPM7 channel and, hence, uncovers a new class of TRPM7 agonists.
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Affiliation(s)
- Sebastian Schäfer
- Walther-Straub-Institute of Pharmacology and Toxicology, University of Munich, Goethestrasse 33, 80336, Munich, Germany
| | - Silvia Ferioli
- Walther-Straub-Institute of Pharmacology and Toxicology, University of Munich, Goethestrasse 33, 80336, Munich, Germany
| | - Thomas Hofmann
- Walther-Straub-Institute of Pharmacology and Toxicology, University of Munich, Goethestrasse 33, 80336, Munich, Germany
| | - Susanna Zierler
- Walther-Straub-Institute of Pharmacology and Toxicology, University of Munich, Goethestrasse 33, 80336, Munich, Germany
| | - Thomas Gudermann
- Walther-Straub-Institute of Pharmacology and Toxicology, University of Munich, Goethestrasse 33, 80336, Munich, Germany
- Comprehensive Pneumology Center Munich (CPC-M), German Center for Lung Research, Munich, Germany
- DZHK (German Centre for Cardiovascular Research), Munich Heart Alliance, Munich, Germany
| | - Vladimir Chubanov
- Walther-Straub-Institute of Pharmacology and Toxicology, University of Munich, Goethestrasse 33, 80336, Munich, Germany.
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Wu J, Tan Z, Chen J, Dong C. Cyclovirobuxine D Inhibits Cell Proliferation and Induces Mitochondria-Mediated Apoptosis in Human Gastric Cancer Cells. Molecules 2015; 20:20659-68. [PMID: 26610442 PMCID: PMC6332340 DOI: 10.3390/molecules201119729] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 11/12/2015] [Accepted: 11/13/2015] [Indexed: 12/20/2022] Open
Abstract
Gastric cancer is one of the most common malignant cancers, with high death rates, poor prognosis and limited treatment methods. Cyclovirobuxine D (CVB-D) is the main active component of the traditional Chinese medicine Buxus microphylla. In the present study, we test the effects of CVB-D on gastric cancer cells and the underlying mechanisms of action. CVB-D reduced cell viability and colony formation ability of MGC-803 and MKN28 cells in a time- and concentration-dependent manner. Flow cytometry showed that cell cycle of CVB-D treated cells was arrested at the S-phase. CVB-D also induced apoptosis in MGC-803 and MKN28 cells, especially early stage apoptosis. Furthermore, mitochondria membrane potential (Δψm) was reduced and apoptosis-related proteins, cleaved Caspase-3 and Bax/Bcl-2, were up-regulated in CVB-D-treated MGC-803 and MKN28 cells. Taken together, our studies found that CVB-D plays important roles in inhibition of gastric tumorigenesis via arresting cell cycle and inducing mitochondria-mediated apoptosis, suggesting the potential application of CVB-D in gastric cancer therapy.
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Affiliation(s)
- Jie Wu
- School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China.
- Ministry of Education of China (MOE) Key Laboratory of Hydrodynamics, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China.
| | - Zhujun Tan
- Department of General Surgery, School of Medicine, Xinhua Hospital, Affiliated to Shanghai Jiao Tong University, Shanghai 200092, China.
| | - Jian Chen
- School of Pharmacy, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China.
| | - Cheng Dong
- School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, No. 800 Dongchuan Road, Shanghai 200240, China.
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, PA 16802, USA.
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Bugan I, Karagoz Z, Altun S, Djamgoz MBA. Gabapentin, an Analgesic Used Against Cancer-Associated Neuropathic Pain: Effects on Prostate Cancer Progression in anIn VivoRat Model. Basic Clin Pharmacol Toxicol 2015; 118:200-7. [DOI: 10.1111/bcpt.12484] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 08/27/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Ilknur Bugan
- Department of Biology; Faculty of Science; Istanbul University; Vezneciler Istanbul Turkey
| | - Zeynep Karagoz
- Department of Biology; Faculty of Science; Istanbul University; Vezneciler Istanbul Turkey
| | - Seyhan Altun
- Department of Biology; Faculty of Science; Istanbul University; Vezneciler Istanbul Turkey
| | - Mustafa B. A. Djamgoz
- Department of Life Sciences; Sir Alexander Fleming Building; Imperial College London; South Kensington Campus; London UK
- Biotechnology Research Centre; Cyprus International University; Haspolat North Cyprus
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125
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Novel Protein Kinase C-Mediated Control of Orai1 Function in Invasive Melanoma. Mol Cell Biol 2015; 35:2790-8. [PMID: 26055321 DOI: 10.1128/mcb.01500-14] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The incidence of malignant melanoma, a cancer of the melanocyte cell lineage, has nearly doubled in the past 20 years. Wnt5A, akey driver of melanoma invasiveness, induces Ca2 signals. To understand how store-operated calcium entry (SOCE) contributes to Wnt5A-induced malignancy in melanoma models, we examined the expression and function of STIM1 and Orai1 in patient-derived malignant melanoma cells, previously characterized as either highly invasive (metastatic) or noninvasive. Using both fluorescence microscopy and electrophysiological approaches, we show that SOCE is greatly diminished in invasive melanoma compared to its level in noninvasive cell types. However, no loss of expression of any members of the STIM and Orai families was observed in invasive melanoma cells. Moreover, overexpressed wild-type STIM1 and Orai1 failed to restore SOCE in invasive melanoma cells, and we observed no defects in their localization before or after store depletion in any of the invasive celllines. Importantly, however, we determined that SOCE was restored by inhibition of protein kinase C, a known downstream target of Wnt5A. Furthermore, coexpression of STIM1 with an Orai1 mutant insensitive to protein kinase C-mediated phosphorylation fully restored SOCE in invasive melanoma. These findings reveal a level of control for STIM/Orai function in invasive melanoma not previously reported.
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Xie J, Pan H, Yao J, Zhou Y, Han W. SOCE and cancer: Recent progress and new perspectives. Int J Cancer 2015; 138:2067-77. [PMID: 26355642 PMCID: PMC4764496 DOI: 10.1002/ijc.29840] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Accepted: 09/03/2015] [Indexed: 12/15/2022]
Abstract
Ca2+ acts as a universal and versatile second messenger in the regulation of a myriad of biological processes, including cell proliferation, differentiation, migration and apoptosis. Store‐operated Ca2+ entry (SOCE) mediated by ORAI and the stromal interaction molecule (STIM) constitutes one of the major routes of calcium entry in nonexcitable cells, in which the depletion of intracellular Ca2+ stores triggers activation of the endoplasmic reticulum (ER)‐resident Ca2+ sensor protein STIM to gate and open the ORAI Ca2+ channels in the plasma membrane (PM). Accumulating evidence indicates that SOCE plays critical roles in cancer cell proliferation, metastasis and tumor neovascularization, as well as in antitumor immunity. We summarize herein the recent advances in our understanding of the function of SOCE in various types of tumor cells, vascular endothelial cells and cells of the immune system. Finally, the therapeutic potential of SOCE inhibitors in the treatment of cancer is also discussed.
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Affiliation(s)
- Jiansheng Xie
- Laboratory of Cancer Biology, Institute of Clinical Science, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hongming Pan
- Laboratory of Cancer Biology, Institute of Clinical Science, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.,Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Junlin Yao
- Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - Yubin Zhou
- Center for Translational Cancer Research, Institute of Biosciences and Technology, Texas A&M University Health Science Center, Houston, TX
| | - Weidong Han
- Laboratory of Cancer Biology, Institute of Clinical Science, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China.,Department of Medical Oncology, Sir Run Run Shaw Hospital, College of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
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127
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Ochieng J, Nangami GN, Ogunkua O, Miousse IR, Koturbash I, Odero-Marah V, McCawley LJ, Nangia-Makker P, Ahmed N, Luqmani Y, Chen Z, Papagerakis S, Wolf GT, Dong C, Zhou BP, Brown DG, Colacci AM, Hamid RA, Mondello C, Raju J, Ryan EP, Woodrick J, Scovassi AI, Singh N, Vaccari M, Roy R, Forte S, Memeo L, Salem HK, Amedei A, Al-Temaimi R, Al-Mulla F, Bisson WH, Eltom SE. The impact of low-dose carcinogens and environmental disruptors on tissue invasion and metastasis. Carcinogenesis 2015; 36 Suppl 1:S128-59. [PMID: 26106135 DOI: 10.1093/carcin/bgv034] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The purpose of this review is to stimulate new ideas regarding low-dose environmental mixtures and carcinogens and their potential to promote invasion and metastasis. Whereas a number of chapters in this review are devoted to the role of low-dose environmental mixtures and carcinogens in the promotion of invasion and metastasis in specific tumors such as breast and prostate, the overarching theme is the role of low-dose carcinogens in the progression of cancer stem cells. It is becoming clearer that cancer stem cells in a tumor are the ones that assume invasive properties and colonize distant organs. Therefore, low-dose contaminants that trigger epithelial-mesenchymal transition, for example, in these cells are of particular interest in this review. This we hope will lead to the collaboration between scientists who have dedicated their professional life to the study of carcinogens and those whose interests are exclusively in the arena of tissue invasion and metastasis.
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Affiliation(s)
- Josiah Ochieng
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA, Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA, Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA, Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA, Department of Pathology, Wayne State University, Detroit, MI 48201, USA, Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia, Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA, Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA, Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy, Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA, Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India, Mediterranean Institute of Oncology, Viagrande 95029, Italy, Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt, Department of Experimental and
| | - Gladys N Nangami
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA, Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA, Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA, Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA, Department of Pathology, Wayne State University, Detroit, MI 48201, USA, Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia, Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA, Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA, Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy, Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA, Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India, Mediterranean Institute of Oncology, Viagrande 95029, Italy, Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt, Department of Experimental and
| | - Olugbemiga Ogunkua
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA, Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA, Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA, Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA, Department of Pathology, Wayne State University, Detroit, MI 48201, USA, Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia, Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA, Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA, Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy, Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA, Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India, Mediterranean Institute of Oncology, Viagrande 95029, Italy, Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt, Department of Experimental and
| | - Isabelle R Miousse
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Igor Koturbash
- Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Valerie Odero-Marah
- Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA
| | - Lisa J McCawley
- Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA
| | | | - Nuzhat Ahmed
- Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia
| | - Yunus Luqmani
- Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait
| | - Zhenbang Chen
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA, Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA, Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA, Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA, Department of Pathology, Wayne State University, Detroit, MI 48201, USA, Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia, Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA, Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA, Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy, Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA, Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India, Mediterranean Institute of Oncology, Viagrande 95029, Italy, Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt, Department of Experimental and
| | - Silvana Papagerakis
- Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA
| | - Gregory T Wolf
- Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA
| | - Chenfang Dong
- Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA
| | - Binhua P Zhou
- Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA
| | - Dustin G Brown
- Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA
| | - Anna Maria Colacci
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy
| | - Roslida A Hamid
- Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia
| | - Chiara Mondello
- Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy
| | - Jayadev Raju
- Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada
| | - Elizabeth P Ryan
- Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA
| | - Jordan Woodrick
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - A Ivana Scovassi
- Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy
| | - Neetu Singh
- Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India
| | - Monica Vaccari
- Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy
| | - Rabindra Roy
- Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Stefano Forte
- Mediterranean Institute of Oncology, Viagrande 95029, Italy
| | - Lorenzo Memeo
- Mediterranean Institute of Oncology, Viagrande 95029, Italy
| | - Hosni K Salem
- Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt
| | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Firenze, Firenze 50134, Italy and
| | - Rabeah Al-Temaimi
- Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait
| | - Fahd Al-Mulla
- Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait
| | - William H Bisson
- Environmental and Molecular Toxicology, Environmental Health Sciences Center, Oregon State University, Corvallis, OR 97331, USA
| | - Sakina E Eltom
- Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN 37208, USA, Department of Environmental and Occupational Health, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA, Department of Biology/Center for Cancer Research and Therapeutic Development, Clark Atlanta University, Atlanta, GA 30314, USA, Department of Cancer Biology, Vanderbilt University, Nashville, TN 37232, USA, Department of Pathology, Wayne State University, Detroit, MI 48201, USA, Department of Obstetrics and Gynecology, University of Melbourne, Melbourne, Victoria, Australia, Faculty of Pharmacy, Department of Pathology, Kuwait University, Safat 13110, Kuwait, Department of Otolaryngology, University of Michigan Medical College, Ann Arbor, MI 48109, USA, Department of Molecular & Cellular Biochemistry, University of Kentucky, Lexington, KY 40506, USA, Department of Environmental and Radiological Health Sciences/Food Science and Human Nutrition, College of Veterinary Medicine and Biomedical Sciences, Colorado State University/Colorado School of Public Health, Fort Collins, CO 80523-1680, USA, Center for Environmental Carcinogenesis and Risk Assessment, Environmental Protection and Health Prevention Agency, Bologna 40126, Italy, Faculty of Medicine and Health Sciences, University Putra, Serdang, Selangor 43400, Malaysia, Istituto di Genetica Molecolare, CNR, via Abbiategrasso 207, 27100 Pavia, Italy, Toxicology Research Division, Bureau of Chemical Safety Food Directorate, Health Products and Food Branch Health Canada, Ottawa, Ontario K1A0K9, Canada, Lombardi Comprehensive Cancer Center, Georgetown University Medical Center, Washington, DC 20057, USA, Centre for Advanced Research, King George's Medical University, Chowk, Lucknow, Uttar Pradesh 226003, India, Mediterranean Institute of Oncology, Viagrande 95029, Italy, Urology Department, kasr Al-Ainy School of Medicine, Cairo University, El Manial, Cairo 12515, Egypt, Department of Experimental and
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128
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de Anda-Jáuregui G, Mejía-Pedroza RA, Espinal-Enríquez J, Hernández-Lemus E. Crosstalk events in the estrogen signaling pathway may affect tamoxifen efficacy in breast cancer molecular subtypes. Comput Biol Chem 2015; 59 Pt B:42-54. [PMID: 26345254 DOI: 10.1016/j.compbiolchem.2015.07.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 07/02/2015] [Accepted: 07/10/2015] [Indexed: 12/15/2022]
Abstract
Steroid hormones are involved on cell growth, development and differentiation. Such effects are often mediated by steroid receptors. One paradigmatic example of this coupling is the estrogen signaling pathway. Its dysregulation is involved in most tumors of the mammary gland. It is thus an important pharmacological target in breast cancer. This pathway, however, crosstalks with several other molecular pathways, a fact that may have consequences for the effectiveness of hormone modulating drug therapies, such as tamoxifen. For this work, we performed a systematic analysis of the major routes involved in crosstalk phenomena with the estrogen pathway - based on gene expression experiments (819 samples) and pathway analysis (493 samples) - for biopsy-captured tissue and contrasted in two independent datasets with in vivo and in vitro pharmacological stimulation. Our results confirm the presence of a number of crosstalk events across the estrogen signaling pathway with others that are dysregulated in different molecular subtypes of breast cancer. These may be involved in proliferation, invasiveness and apoptosis-evasion in patients. The results presented may open the way to new designs of adjuvant and neoadjuvant therapies for breast cancer treatment.
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Affiliation(s)
| | - Raúl A Mejía-Pedroza
- Computational Genomics Department, National Institute of Genomic Medicine (INMEGEN), Mexico
| | - Jesús Espinal-Enríquez
- Computational Genomics Department, National Institute of Genomic Medicine (INMEGEN), Mexico; Center for Complexity Sciences, National Autonomous University of México (UNAM), Mexico
| | - Enrique Hernández-Lemus
- Computational Genomics Department, National Institute of Genomic Medicine (INMEGEN), Mexico; Center for Complexity Sciences, National Autonomous University of México (UNAM), Mexico.
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129
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Vashisht A, Trebak M, Motiani RK. STIM and Orai proteins as novel targets for cancer therapy. A Review in the Theme: Cell and Molecular Processes in Cancer Metastasis. Am J Physiol Cell Physiol 2015; 309:C457-69. [PMID: 26017146 DOI: 10.1152/ajpcell.00064.2015] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Calcium (Ca(2+)) regulates a plethora of cellular functions including hallmarks of cancer development such as cell cycle progression and cellular migration. Receptor-regulated calcium rise in nonexcitable cells occurs through store-dependent as well as store-independent Ca(2+) entry pathways. Stromal interaction molecules (STIM) and Orai proteins have been identified as critical constituents of both these Ca(2+) influx pathways. STIMs and Orais have emerged as targets for cancer therapeutics as their altered expression and function have been shown to contribute to tumorigenesis. Recent data demonstrate that they play a vital role in development and metastasis of a variety of tumor types including breast, prostate, cervical, colorectal, brain, and skin tumors. In this review, we will retrospect the data supporting a key role for STIM1, STIM2, Orai1, and Orai3 proteins in tumorigenesis and discuss the potential of targeting these proteins for cancer therapy.
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Affiliation(s)
- Ayushi Vashisht
- Systems Biology Group, CSIR-Institute of Genomics and Integrative Biology, New Delhi, India; and
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology, The Pennsylvania State University School of Medicine, Hershey, Pennsylvania
| | - Rajender K Motiani
- Systems Biology Group, CSIR-Institute of Genomics and Integrative Biology, New Delhi, India; and
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130
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Su CC, Liu SH, Lee KI, Huang KT, Lu TH, Fang KM, Wu CC, Yen CC, Lai CH, Su YC, Huang CF. Cantharidin Induces Apoptosis Through the Calcium/PKC-Regulated Endoplasmic Reticulum Stress Pathway in Human Bladder Cancer Cells. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2015; 43:581-600. [PMID: 25967669 DOI: 10.1142/s0192415x15500366] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Bladder cancer is a common malignancy worldwide. However, there is still no effective therapy for bladder cancer. In this study, we investigated the cytotoxic effects of cantharidin [a natural toxin produced (pure compound) from Chinese blister beetles (Mylabrisphalerata or Mylabriscichorii) and Spanish flies (Cantharis vesicatoria)] in human bladder cancer cell lines (including: T24 and RT4 cells). Treatment of human bladder cancer cells with cantharidin significantly decreased cell viability. The increase in the expressions of caspase-3 activity and cleaved form of caspase-9/-7/-3 were also increased in cantharidin-treated T24 cells. Furthermore, cantharidin increased the levels of phospho-eIF2α and Grp78 and decreased the protein expression of procaspase-12, which was accompanied by the increase in calpain activity in T24 cells. Cantharidin was capable of increasing the intracellular Ca 2+ and the phosphorylation of protein kinase C (PKC) in T24 cells. The addition of BAPTA/AM (a Ca 2+ chelator) and RO320432 (a selective cell-permeable PKC inhibitor) effectively reversed the increase in caspase-3 and calpain activity, the phosphorylation levels of PKC and eIF2α and Grp78 protein expression, and the decrease in procaspase-12 expression induced by cantharidin. Importantly, cantharidin significantly decreased the tumor volume (a dramatic 71% reduction after 21 days of treatment) in nude mice xenografted with T24 cells. Taken together, these results indicate cantharidin induced human bladder cancer cell apoptosis through a calcium/PKC-regulated ER stress pathway. These findings suggest that cantharidin may be a novel and potential anticancer agent targeting on bladder cancer cells.
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Affiliation(s)
- Chin-Chuan Su
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Department of Otorhinolaryngology, Head and Neck Surgery, Changhua Christian Hospital, Changhua County, Taiwan
| | - Shing-Hwa Liu
- Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Kuan-I Lee
- Department of Emergency, Taichung Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Taichung, Taiwan
| | - Kou-Tong Huang
- Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Tien-Hui Lu
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Kai-Min Fang
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
- Department of Otolaryngology, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Chin-Ching Wu
- Department of Public Health, China Medical University, Taichung, Taiwan
| | - Cheng-Chieh Yen
- Department of Occupational Safety and Health, College of Health Care and Management, Chung Shan Medical University and Department of Occupational Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chih-Ho Lai
- Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan
| | - Yi-Chang Su
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
| | - Chun-Fa Huang
- School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan
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131
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Kale VP, Amin SG, Pandey MK. Targeting ion channels for cancer therapy by repurposing the approved drugs. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2015; 1848:2747-55. [PMID: 25843679 DOI: 10.1016/j.bbamem.2015.03.034] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 03/18/2015] [Accepted: 03/27/2015] [Indexed: 12/21/2022]
Abstract
Ion channels have been shown to be involved in oncogenesis and efforts are being poured in to target the ion channels. There are many clinically approved drugs with ion channels as "off" targets. The question is, can these drugs be repurposed to inhibit ion channels for cancer treatment? Repurposing of drugs will not only save investors' money but also result in safer drugs for cancer patients. Advanced bioinformatics techniques and availability of a plethora of open access data on FDA approved drugs for various indications and omics data of large number of cancer types give a ray of hope to look for possibility of repurposing those drugs for cancer treatment. This article is part of a Special Issue entitled: Membrane channels and transporters in cancers.
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Affiliation(s)
- Vijay Pralhad Kale
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Shantu G Amin
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Manoj K Pandey
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, PA 17033, USA.
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Vanden Abeele F, Dubois C, Shuba Y, Prevarskaya N. Disrupting the dynamic equilibrium of ORAI channels determines the phenotype of malignant cells. Mol Cell Oncol 2015; 2:e975631. [PMID: 27308432 PMCID: PMC4904888 DOI: 10.4161/23723556.2014.975631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2014] [Revised: 08/01/2014] [Accepted: 10/03/2014] [Indexed: 06/06/2023]
Abstract
We recently unraveled a finely tuned oncogenic mechanism in which genetic and tumor microenvironment alterations act together on a crucial calcium signaling pathway. This pathway involves an interconnected equilibrium of calcium channels functioning like a binary star system in which ORAI1 homomers and ORAI1/3 heteromers are two companion stars under the influence of each other that orbit around the cancer hallmarks of apoptosis resistance and enhanced proliferation.
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Affiliation(s)
- Fabien Vanden Abeele
- Inserm U1003; Equipe labellisée par la Ligue Nationale Contre le Cancer; SIRIC ONCOLille; Laboratory of Excellence; Ion Channels Science and Therapeutics; Université des Sciences et Technologies de Lille (USTL); Villeneuve d’Ascq, France
| | - Charlotte Dubois
- Inserm U1003; Equipe labellisée par la Ligue Nationale Contre le Cancer; SIRIC ONCOLille; Laboratory of Excellence; Ion Channels Science and Therapeutics; Université des Sciences et Technologies de Lille (USTL); Villeneuve d’Ascq, France
| | - Yaroslav Shuba
- Bogomoletz Institute of Physiology and International Center of Molecular Physiology of the National Academy of Sciences of Ukraine; State Key Laboratory; Kiev, Ukraine
| | - Natalia Prevarskaya
- Inserm U1003; Equipe labellisée par la Ligue Nationale Contre le Cancer; SIRIC ONCOLille; Laboratory of Excellence; Ion Channels Science and Therapeutics; Université des Sciences et Technologies de Lille (USTL); Villeneuve d’Ascq, France
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Didiasova M, Zakrzewicz D, Magdolen V, Nagaraj C, Bálint Z, Rohde M, Preissner KT, Wygrecka M. STIM1/ORAI1-mediated Ca2+ Influx Regulates Enolase-1 Exteriorization. J Biol Chem 2015; 290:11983-99. [PMID: 25805497 DOI: 10.1074/jbc.m114.598425] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Indexed: 12/21/2022] Open
Abstract
Tumor cells use broad spectrum proteolytic activity of plasmin to invade tissue and form metastatic foci. Cell surface-associated enolase-1 (ENO-1) enhances plasmin formation and thus participates in the regulation of pericellular proteolysis. Although increased levels of cell surface bound ENO-1 have been described in different types of cancer, the molecular mechanism responsible for ENO-1 exteriorization remains elusive. In the present study, increased ENO-1 protein levels were found in ductal breast carcinoma and on the cell surface of highly metastatic breast cancer cell line MDA-MB-231. Elevated cell surface-associated ENO-1 expression correlated with augmented MDA-MB-231 cell migratory and invasive properties. Exposure of MDA-MB-231 cells to LPS potentiated translocation of ENO-1 to the cell surface and its release into the extracellular space in the form of exosomes. These effects were independent of de novo protein synthesis and did not require the classical endoplasmic reticulum/Golgi pathway. LPS-triggered ENO-1 exteriorization was suppressed by pretreatment of MDA-MB-231 cells with the Ca(2+) chelator BAPTA or an inhibitor of endoplasmic reticulum Ca(2+)-ATPase pump, cyclopiazonic acid. In line with these observations, the stromal interaction molecule (STIM) 1 and the calcium release-activated calcium modulator (ORAI) 1-mediated store-operated Ca(2+) entry were found to regulate LPS-induced ENO-1 exteriorization. Pharmacological blockage or knockdown of STIM1 or ORAI1 reduced ENO-1-dependent migration of MDA-MB-231 cells. Collectively, our results demonstrate the pivotal role of store-operated Ca(2+) channel-mediated Ca(2+) influx in the regulation of ENO-1 exteriorization and thus in the modulation of cancer cell migratory and invasive properties.
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Affiliation(s)
- Miroslava Didiasova
- From the Department of Biochemistry, University of Giessen Lung Center, 35392 Giessen, Germany
| | - Dariusz Zakrzewicz
- From the Department of Biochemistry, University of Giessen Lung Center, 35392 Giessen, Germany
| | - Viktor Magdolen
- the Clinical Research Unit, Department of Obstetrics and Gynecology, Technical University of Munich, 81675 Munich, Germany
| | - Chandran Nagaraj
- the Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria, and
| | - Zoltán Bálint
- the Ludwig Boltzmann Institute for Lung Vascular Research, 8010 Graz, Austria, and
| | - Manfred Rohde
- the Helmholtz Center for Infection Research, Central Facility for Microscopy, 38124 Braunschweig, Germany
| | - Klaus T Preissner
- From the Department of Biochemistry, University of Giessen Lung Center, 35392 Giessen, Germany
| | - Malgorzata Wygrecka
- From the Department of Biochemistry, University of Giessen Lung Center, 35392 Giessen, Germany,
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Litan A, Langhans SA. Cancer as a channelopathy: ion channels and pumps in tumor development and progression. Front Cell Neurosci 2015; 9:86. [PMID: 25852478 PMCID: PMC4362317 DOI: 10.3389/fncel.2015.00086] [Citation(s) in RCA: 206] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Accepted: 02/23/2015] [Indexed: 12/23/2022] Open
Abstract
Increasing evidence suggests that ion channels and pumps not only regulate membrane potential, ion homeostasis, and electric signaling in excitable cells but also play important roles in cell proliferation, migration, apoptosis and differentiation. Consistent with a role in cell signaling, channel proteins and ion pumps can form macromolecular complexes with growth factors, and cell adhesion and other signaling molecules. And while cancer is still not being cataloged as a channelopathy, as the non-traditional roles of ion pumps and channels are being recognized, it is increasingly being suggested that ion channels and ion pumps contribute to cancer progression. Cancer cell migration requires the regulation of adhesion complexes between migrating cells and surrounding extracellular matrix (ECM) proteins. Cell movement along solid surfaces requires a sequence of cell protrusions and retractions that mainly depend on regulation of the actin cytoskeleton along with contribution of microtubules and molecular motor proteins such as mysoin. This process is triggered and modulated by a combination of environmental signals, which are sensed and integrated by membrane receptors, including integrins and cadherins. Membrane receptors transduce these signals into downstream signaling pathways, often involving the Rho GTPase protein family. These pathways regulate the cytoskeletal rearrangements necessary for proper timing of adhesion, contraction and detachment of cells in order to find their way through extracellular spaces. Migration and adhesion involve continuous modulation of cell motility, shape and volume, in which ion channels and pumps play major roles. Research on cancer cells suggests that certain ion channels may be involved in aberrant tumor growth and channel inhibitors often lead to growth arrest. This review will describe recent research into the role of ion pumps and ion channels in cell migration and adhesion, and how they may contribute to tumor development.
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Affiliation(s)
- Alisa Litan
- Nemours Center for Childhood Cancer Research, Alfred I. duPont Hospital for Children Wilmington, DE, USA
| | - Sigrid A Langhans
- Nemours Center for Childhood Cancer Research, Alfred I. duPont Hospital for Children Wilmington, DE, USA
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135
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Effects of angiotensin II on transient receptor potential melastatin 7 channel function in cardiac fibroblasts. Exp Ther Med 2015; 9:2008-2012. [PMID: 26136930 DOI: 10.3892/etm.2015.2362] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2014] [Accepted: 02/19/2015] [Indexed: 01/15/2023] Open
Abstract
The aim of the present study was to investigate the electrophysiological properties of transient receptor potential melastatin 7 (TRPM7) channels in the cell membranes of cardiac fibroblasts (CFs). CFs obtained from Sprague-Dawley rats were treated with six different concentrations of angiotensin (Ang) II for 12 h. The optimum concentration of Ang II for inducing fibrosis was selected by measuring collagen protein expression levels at each concentration. The optimum concentration of Ang II was then used to treat the CFs at five different time-points, and the TRPM7 current across the CF membranes was recorded along with the collagen protein levels in each group. The optimum Ang II concentration for inducing fibrosis was found to be 1 nmol/l; when it was administered to CFs at 0, 6, 12, 24 and 48 h, the protein expression levels of TRPM7 and collagen III initially increased, reaching maximum levels at 12 h, and then decreased. This result positively correlated with the TRPM7 current levels on either side of the CF membranes: The TRPM7 current under the effect of the optimal Ang II concentration for inducing fibrosis was initially increased and then later decreased. This is one of the key mechanisms by which Ang II mediates the proliferation and apoptosis of CFs. This knowledge may be used to identify treatments for the prevention of cardiac fibrosis.
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136
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Calcium channel expression and applicability as targeted therapies in melanoma. BIOMED RESEARCH INTERNATIONAL 2015; 2015:587135. [PMID: 25710007 PMCID: PMC4331404 DOI: 10.1155/2015/587135] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 12/15/2014] [Accepted: 12/15/2014] [Indexed: 12/12/2022]
Abstract
The remodeling of Ca(2+) signaling is a common finding in cancer pathophysiology serving the purpose of facilitating proliferation, migration, or survival of cancer cells subjected to stressful conditions. One particular facet of these adaptive changes is the alteration of Ca(2+) fluxes through the plasma membrane, as described in several studies. In this review, we summarize the current knowledge about the expression of different Ca(2+) channels in the plasma membrane of melanoma cells and its impact on oncogenic Ca(2+) signaling. In the last few years, new molecular components of Ca(2+) influx pathways have been identified in melanoma cells. In addition, new links between Ca(2+) homeostasis and specific cell processes important in melanoma tumor progression have been unveiled. Thus, not only do Ca(2+) channels appear to have a potential as prognostic markers, but their pharmacological blockade or gene silencing is hinted as interesting therapeutic approaches.
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Muñoz JJ, Drigo SA, Barros-Filho MC, Marchi FA, Scapulatempo-Neto C, Pessoa GS, Guimarães GC, Trindade Filho JCS, Lopes A, Arruda MAZ, Rogatto SR. Down-Regulation of SLC8A1 as a Putative Apoptosis Evasion Mechanism by Modulation of Calcium Levels in Penile Carcinoma. J Urol 2014; 194:245-51. [PMID: 25481039 DOI: 10.1016/j.juro.2014.11.097] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/26/2014] [Indexed: 10/24/2022]
Abstract
PURPOSE The SLC8A1 gene, which encodes the Na(+)/Ca(2+) exchanger, has a key role in calcium homeostasis. Our previous gene expression oligoarray data revealed SLC8A1 under expression in penile carcinoma. We investigated whether dysregulation of SLC8A1 expression is associated with apoptosis and cell proliferation in penile carcinoma via modulation of the calcium concentration. The underlying mechanisms of SLC8A1 under expression were also explored, focusing on copy number alteration and miRNA. MATERIALS AND METHODS Transcript levels of the SLC8A1 gene and miR-223 were evaluated by quantitative polymerase chain reaction to compare penile carcinoma samples with normal glans tissue. SLC8A1 copy number was evaluated by microarray based comparative genomic hybridization. In normal and tumor samples we investigated caspase-3 and Ki-67 immunostaining as well as calcium distribution by laser ablation imaging inductively coupled plasma mass spectrometry. RESULTS SLC8A1 under expression was detected in penile carcinoma samples (p = 0.001), confirming our previous data. It was not associated with gene copy number loss. In contrast, miR-223 over expression (p = 0.002) inversely correlated with its putative repressor SLC8A1 (r = -0.426, p = 0.015). SLC8A1 under expression was associated with decreased calcium distribution, high Ki-67 and low caspase-3 immunoexpression in penile carcinoma compared to normal tissue. CONCLUSIONS Down-regulation of the SLC8A1 gene, most likely mediated by its regulator miR-223, can lead to decreased calcium in penile carcinoma and consequently to suppressed apoptosis and increased tumor cell proliferation. These data suggest that the miR-223-NCX1-calcium signaling axis may represent a potential therapeutic approach to penile carcinoma.
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Affiliation(s)
- Juan J Muñoz
- International Research Center (JJM, MCB-F, FAM, SRR), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pelvic Surgery (AL), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Barretos Cancer Hospital (CS-N), São Paulo, Brazil; Department of Genetics, Institute of Biosciences (JJM), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Department of Urology, Faculty of Medicine (SAD, JCSTF, SRR), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Group of Spectrometry, Sample Preparation and Mechanization (GSP, MAZA), Institute of Chemistry, State University of Campinas, Campinas, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, State University of Campinas, Campinas, Brazil
| | - Sandra A Drigo
- International Research Center (JJM, MCB-F, FAM, SRR), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pelvic Surgery (AL), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Barretos Cancer Hospital (CS-N), São Paulo, Brazil; Department of Genetics, Institute of Biosciences (JJM), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Department of Urology, Faculty of Medicine (SAD, JCSTF, SRR), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Group of Spectrometry, Sample Preparation and Mechanization (GSP, MAZA), Institute of Chemistry, State University of Campinas, Campinas, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, State University of Campinas, Campinas, Brazil
| | - Mateus C Barros-Filho
- International Research Center (JJM, MCB-F, FAM, SRR), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pelvic Surgery (AL), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Barretos Cancer Hospital (CS-N), São Paulo, Brazil; Department of Genetics, Institute of Biosciences (JJM), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Department of Urology, Faculty of Medicine (SAD, JCSTF, SRR), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Group of Spectrometry, Sample Preparation and Mechanization (GSP, MAZA), Institute of Chemistry, State University of Campinas, Campinas, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, State University of Campinas, Campinas, Brazil
| | - Fábio A Marchi
- International Research Center (JJM, MCB-F, FAM, SRR), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pelvic Surgery (AL), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Barretos Cancer Hospital (CS-N), São Paulo, Brazil; Department of Genetics, Institute of Biosciences (JJM), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Department of Urology, Faculty of Medicine (SAD, JCSTF, SRR), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Group of Spectrometry, Sample Preparation and Mechanization (GSP, MAZA), Institute of Chemistry, State University of Campinas, Campinas, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, State University of Campinas, Campinas, Brazil
| | - Cristovam Scapulatempo-Neto
- International Research Center (JJM, MCB-F, FAM, SRR), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pelvic Surgery (AL), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Barretos Cancer Hospital (CS-N), São Paulo, Brazil; Department of Genetics, Institute of Biosciences (JJM), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Department of Urology, Faculty of Medicine (SAD, JCSTF, SRR), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Group of Spectrometry, Sample Preparation and Mechanization (GSP, MAZA), Institute of Chemistry, State University of Campinas, Campinas, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, State University of Campinas, Campinas, Brazil
| | - Gustavo S Pessoa
- International Research Center (JJM, MCB-F, FAM, SRR), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pelvic Surgery (AL), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Barretos Cancer Hospital (CS-N), São Paulo, Brazil; Department of Genetics, Institute of Biosciences (JJM), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Department of Urology, Faculty of Medicine (SAD, JCSTF, SRR), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Group of Spectrometry, Sample Preparation and Mechanization (GSP, MAZA), Institute of Chemistry, State University of Campinas, Campinas, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, State University of Campinas, Campinas, Brazil
| | - Gustavo C Guimarães
- International Research Center (JJM, MCB-F, FAM, SRR), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pelvic Surgery (AL), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Barretos Cancer Hospital (CS-N), São Paulo, Brazil; Department of Genetics, Institute of Biosciences (JJM), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Department of Urology, Faculty of Medicine (SAD, JCSTF, SRR), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Group of Spectrometry, Sample Preparation and Mechanization (GSP, MAZA), Institute of Chemistry, State University of Campinas, Campinas, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, State University of Campinas, Campinas, Brazil
| | - José Carlos S Trindade Filho
- International Research Center (JJM, MCB-F, FAM, SRR), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pelvic Surgery (AL), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Barretos Cancer Hospital (CS-N), São Paulo, Brazil; Department of Genetics, Institute of Biosciences (JJM), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Department of Urology, Faculty of Medicine (SAD, JCSTF, SRR), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Group of Spectrometry, Sample Preparation and Mechanization (GSP, MAZA), Institute of Chemistry, State University of Campinas, Campinas, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, State University of Campinas, Campinas, Brazil
| | - Ademar Lopes
- International Research Center (JJM, MCB-F, FAM, SRR), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pelvic Surgery (AL), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Barretos Cancer Hospital (CS-N), São Paulo, Brazil; Department of Genetics, Institute of Biosciences (JJM), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Department of Urology, Faculty of Medicine (SAD, JCSTF, SRR), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Group of Spectrometry, Sample Preparation and Mechanization (GSP, MAZA), Institute of Chemistry, State University of Campinas, Campinas, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, State University of Campinas, Campinas, Brazil
| | - Marco A Z Arruda
- International Research Center (JJM, MCB-F, FAM, SRR), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pelvic Surgery (AL), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Barretos Cancer Hospital (CS-N), São Paulo, Brazil; Department of Genetics, Institute of Biosciences (JJM), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Department of Urology, Faculty of Medicine (SAD, JCSTF, SRR), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Group of Spectrometry, Sample Preparation and Mechanization (GSP, MAZA), Institute of Chemistry, State University of Campinas, Campinas, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, State University of Campinas, Campinas, Brazil
| | - Silvia R Rogatto
- International Research Center (JJM, MCB-F, FAM, SRR), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pelvic Surgery (AL), A.C. Camargo Cancer Center, São Paulo, Brazil; Department of Pathology, Barretos Cancer Hospital (CS-N), São Paulo, Brazil; Department of Genetics, Institute of Biosciences (JJM), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Department of Urology, Faculty of Medicine (SAD, JCSTF, SRR), São Paulo State University-Universidade Estadual Paulista, Botucatu, Brazil; Group of Spectrometry, Sample Preparation and Mechanization (GSP, MAZA), Institute of Chemistry, State University of Campinas, Campinas, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, State University of Campinas, Campinas, Brazil.
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Zhu M, Chen L, Zhao P, Zhou H, Zhang C, Yu S, Lin Y, Yang X. Store-operated Ca(2+) entry regulates glioma cell migration and invasion via modulation of Pyk2 phosphorylation. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2014. [PMID: 25433371 DOI: 10.1186/preaccept-3101393591453932] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND The ubiquitous second messenger Ca(2+) has been demonstrated to play an important role in cancer progression. Store-operated Ca(2+) entry (SOCE) is the main Ca(2+) entry pathway regulating intracellular Ca(2+) concentration in a variety of cancer types. The present study aimed to explore the specific mechanisms of SOCE in the processes of glioma migration and invasion. METHODS The expression of Orai1, a key component of SOCE, was examined in glioma samples and glioma cell lines by immunohistochemistry and western blot analysis. Both pharmacological intervention and RNA interference were employed to investigate the role of SOCE in glioma cell migration and invasion in vitro. The intracellular Ca(2+) was certified through Fluo-4/AM based Ca(2+) measurement. The effect of SOCE on cell viability, migration, and invasion was explored by methyl thiazolyl tetrazolium (MTT) assay, wound healing assay, transwell invasion assay. Western blot analysis and immunofluorescence assay were used to observe the changes of downstream related protein and cell morpholog. RESULTS Orai1 expression was elevated in glioma tissues and several glioma cell lines compared with non-neoplastic brain tissues. Either inhibition of SOCE by a pharmacological inhibitor or Orai1 downregulation suppressed glioma cell migration and invasion. However, re-expression of Orai1 could rescue glioma cell motility. Furthermore, phosphorylation of proline-rich tyrosine kinase 2 (Pyk2) participated in the mechanisms by which SOCE regulated focal adhesion turnover and epithelial-to-mesenchymal (-like) transition in glioma cells, both of which are considered to be critical for tumor progression. CONCLUSIONS The SOCE-Pyk2 pathway is essential for glioma migration and invasion. The study indicates the potential value of Orai1 as a molecular target for anti-invasion therapy.
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Affiliation(s)
- Meng Zhu
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Lei Chen
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Pengfei Zhao
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Hua Zhou
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Chen Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Shengping Yu
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Yu Lin
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Xuejun Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
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Zhu M, Chen L, Zhao P, Zhou H, Zhang C, Yu S, Lin Y, Yang X. Store-operated Ca(2+) entry regulates glioma cell migration and invasion via modulation of Pyk2 phosphorylation. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2014; 33:98. [PMID: 25433371 PMCID: PMC4258251 DOI: 10.1186/s13046-014-0098-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Accepted: 11/14/2014] [Indexed: 01/08/2023]
Abstract
Background The ubiquitous second messenger Ca2+ has been demonstrated to play an important role in cancer progression. Store-operated Ca2+ entry (SOCE) is the main Ca2+ entry pathway regulating intracellular Ca2+ concentration in a variety of cancer types. The present study aimed to explore the specific mechanisms of SOCE in the processes of glioma migration and invasion. Methods The expression of Orai1, a key component of SOCE, was examined in glioma samples and glioma cell lines by immunohistochemistry and western blot analysis. Both pharmacological intervention and RNA interference were employed to investigate the role of SOCE in glioma cell migration and invasion in vitro. The intracellular Ca2+ was certified through Fluo-4/AM based Ca2+ measurement. The effect of SOCE on cell viability, migration, and invasion was explored by methyl thiazolyl tetrazolium (MTT) assay, wound healing assay, transwell invasion assay. Western blot analysis and immunofluorescence assay were used to observe the changes of downstream related protein and cell morpholog. Results Orai1 expression was elevated in glioma tissues and several glioma cell lines compared with non-neoplastic brain tissues. Either inhibition of SOCE by a pharmacological inhibitor or Orai1 downregulation suppressed glioma cell migration and invasion. However, re-expression of Orai1 could rescue glioma cell motility. Furthermore, phosphorylation of proline-rich tyrosine kinase 2 (Pyk2) participated in the mechanisms by which SOCE regulated focal adhesion turnover and epithelial-to-mesenchymal (−like) transition in glioma cells, both of which are considered to be critical for tumor progression. Conclusions The SOCE-Pyk2 pathway is essential for glioma migration and invasion. The study indicates the potential value of Orai1 as a molecular target for anti-invasion therapy. Electronic supplementary material The online version of this article (doi:10.1186/s13046-014-0098-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Meng Zhu
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Lei Chen
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Pengfei Zhao
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Hua Zhou
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Chen Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Shengping Yu
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Yu Lin
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
| | - Xuejun Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, 154# Anshan Road, Tianjin, 300052, China. .,Laboratory of Neuro-Oncology, Tianjin Neurological Institute, Tianjin, 300052, China.
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Natural and Synthetic Modulators of the TRPM7 Channel. Cells 2014; 3:1089-101. [PMID: 25437439 PMCID: PMC4276914 DOI: 10.3390/cells3041089] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 11/19/2014] [Accepted: 11/20/2014] [Indexed: 11/16/2022] Open
Abstract
Transient receptor potential cation channel subfamily M member 7 (TRPM7) is a bi-functional protein comprising a TRP ion channel segment linked to an α-type protein kinase domain. Genetic inactivation of TRPM7 revealed its central role in magnesium metabolism, cell motility, proliferation and differentiation. TRPM7 is associated with anoxic neuronal death, cardiac fibrosis and tumor progression highlighting TRPM7 as a new drug target. Recently, several laboratories have independently identified pharmacological compounds inhibiting or activating the TRPM7 channel. The recently found TRPM7 modulators were used as new experimental tools to unravel cellular functions of the TRPM7 channel. Here, we provide a concise overview of this emerging field.
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Shoshan-Barmatz V, Ben-Hail D, Admoni L, Krelin Y, Tripathi SS. The mitochondrial voltage-dependent anion channel 1 in tumor cells. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2014; 1848:2547-75. [PMID: 25448878 DOI: 10.1016/j.bbamem.2014.10.040] [Citation(s) in RCA: 167] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 10/20/2014] [Accepted: 10/24/2014] [Indexed: 02/06/2023]
Abstract
VDAC1 is found at the crossroads of metabolic and survival pathways. VDAC1 controls metabolic cross-talk between mitochondria and the rest of the cell by allowing the influx and efflux of metabolites, ions, nucleotides, Ca2+ and more. The location of VDAC1 at the outer mitochondrial membrane also enables its interaction with proteins that mediate and regulate the integration of mitochondrial functions with cellular activities. As a transporter of metabolites, VDAC1 contributes to the metabolic phenotype of cancer cells. Indeed, this protein is over-expressed in many cancer types, and silencing of VDAC1 expression induces an inhibition of tumor development. At the same time, along with regulating cellular energy production and metabolism, VDAC1 is involved in the process of mitochondria-mediated apoptosis by mediating the release of apoptotic proteins and interacting with anti-apoptotic proteins. The engagement of VDAC1 in the release of apoptotic proteins located in the inter-membranal space involves VDAC1 oligomerization that mediates the release of cytochrome c and AIF to the cytosol, subsequently leading to apoptotic cell death. Apoptosis can also be regulated by VDAC1, serving as an anchor point for mitochondria-interacting proteins, such as hexokinase (HK), Bcl2 and Bcl-xL, some of which are also highly expressed in many cancers. By binding to VDAC1, HK provides both a metabolic benefit and apoptosis-suppressive capacity that offer the cell a proliferative advantage and increase its resistance to chemotherapy. Thus, these and other functions point to VDAC1 as an excellent target for impairing the re-programed metabolism of cancer cells and their ability to evade apoptosis. Here, we review current evidence pointing to the function of VDAC1 in cell life and death, and highlight these functions in relation to both cancer development and therapy. In addressing the recently solved 3D structures of VDAC1, this review will point to structure-function relationships of VDAC as critical for deciphering how this channel can perform such a variety of roles, all of which are important for cell life and death. Finally, this review will also provide insight into VDAC function in Ca2+ homeostasis, protection against oxidative stress, regulation of apoptosis and involvement in several diseases, as well as its role in the action of different drugs. We will discuss the use of VDAC1-based strategies to attack the altered metabolism and apoptosis of cancer cells. These strategies include specific siRNA able to impair energy and metabolic homeostasis, leading to arrested cancer cell growth and tumor development, as well VDAC1-based peptides that interact with anti-apoptotic proteins to induce apoptosis, thereby overcoming the resistance of cancer cell to chemotherapy. Finally, small molecules targeting VDAC1 can induce apoptosis. VDAC1 can thus be considered as standing at the crossroads between mitochondrial metabolite transport and apoptosis and hence represents an emerging cancer drug target. This article is part of a Special Issue entitled: Membrane channels and transporters in cancers.
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Affiliation(s)
- Varda Shoshan-Barmatz
- Department of Life Sciences, and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.
| | - Danya Ben-Hail
- Department of Life Sciences, and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Lee Admoni
- Department of Life Sciences, and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Yakov Krelin
- Department of Life Sciences, and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Shambhoo Sharan Tripathi
- Department of Life Sciences, and the National Institute for Biotechnology in the Negev, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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142
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May the remodeling of the Ca²⁺ toolkit in endothelial progenitor cells derived from cancer patients suggest alternative targets for anti-angiogenic treatment? BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2014; 1853:1958-73. [PMID: 25447551 DOI: 10.1016/j.bbamcr.2014.10.024] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 10/16/2014] [Accepted: 10/28/2014] [Indexed: 01/10/2023]
Abstract
Endothelial progenitor cells (EPCs) may be recruited from bone marrow to sustain the metastatic switch in a number of solid cancers, including breast cancer (BC) and renal cellular carcinoma (RCC). Preventing EPC mobilization causes tumor shrinkage. Novel anti-angiogenic treatments have been introduced in therapy to inhibit VEGFR-2 signaling; unfortunately, these drugs blocked tumor angiogenesis in pre-clinical murine models, but resulted far less effective in human patients. Understanding the molecular mechanisms driving EPC proliferation and tubulogenesis in cancer patients could outline novel targets for alternative anti-angiogenic treatments. Store-operated Ca²⁺ entry (SOCE) regulates the growth of human EPCs, and it is mediated by the interaction between the endoplasmic reticulum Ca²⁺-sensor, Stim1, and the plasmalemmal Ca²⁺ channels, Orai1 and TRPC1. EPCs do not belong to the neoplastic clone: thus, unlike tumor endothelium and neoplastic cells, they should not remodel their Ca²⁺ toolkit in response to tumor microenvironment. However, our recent work demonstrated that EPCs isolated from naïve RCC patients (RCC-EPCs) undergo a dramatic remodeling of their Ca²⁺ toolkit by displaying a remarkable drop in the endoplasmic reticulum Ca²⁺ content, by down-regulating the expression of inositol-1,4,5-receptors (InsP3Rs), and by up-regulating Stim1, Orai1 and TRPC1. Moreover, EPCs are dramatically less sensitive to VEGF stimulation both in terms of Ca²⁺ signaling and of gene expression when isolated from tumor patients. Conversely, the pharmacological abolition of SOCE suppresses proliferation in these cells. These results question the suitability of VEGFR-2 as a therapeutically relevant target for anti-angiogenic treatments and hint at Orai1 and TRPC1 as more promising alternatives. This article is part of a Special Issue entitled: 13th European Symposium on Calcium.
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143
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Lange I, Koomoa DLT. MycN promotes TRPM7 expression and cell migration in neuroblastoma through a process that involves polyamines. FEBS Open Bio 2014; 4:966-75. [PMID: 25426416 PMCID: PMC4241534 DOI: 10.1016/j.fob.2014.10.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2014] [Revised: 10/13/2014] [Accepted: 10/24/2014] [Indexed: 12/22/2022] Open
Abstract
MycN expression correlates with TRPM7 expression in neuroblastoma (NB) tumors. Expression of the transmembrane protein TRPM7 correlates with lower overall survival in NB tumors. MycN promotes TRPM7 mRNA and protein expression and increases TRPM7 channel activity. TRPM7 regulates NB cell migration. Polyamines regulate TRPM7 expression.
Neuroblastoma is an extra-cranial solid cancer in children. MYCN gene amplification is a prognostic indicator of poor outcome in neuroblastoma. Recent studies have shown that the multiple steps involved in cell migration are dependent on the availability of intracellular calcium (Ca2+). Although significant advances have been made in understanding the role of Ca2+ during migration, little has been achieved towards understanding its impact on the progression of diseases such as cancer. Interestingly, previous studies showed that cancer cell migration is regulated by TRPM7, a calcium-permeable ion channel. The objective of the current study was to elucidate the mechanism by which MycN promotes NB cell migration and the mechanism regulating TRPM7 expression. The results showed that MycN increased TRPM7 expression, induced TRPM7 channel activity, increased intracellular Ca2+ signaling, and promoted cell migration in NB cells. The results also showed that inhibition or down-regulation of ornithine decarboxylase (ODC) inhibited TRPM7 expression, a process that was reversed by spermidine. Overall, this study provides evidence that MycN promotes TRPM7 expression and cell migration through a mechanism that involves ODC synthesis of polyamines.
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Affiliation(s)
- Ingo Lange
- University of Hawaii at Hilo, The Daniel K. Inouye College of Pharmacy, Hilo, HI 96720, USA
| | - Dana-Lynn T Koomoa
- University of Hawaii at Hilo, The Daniel K. Inouye College of Pharmacy, Hilo, HI 96720, USA
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144
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Sobradillo D, Hernández-Morales M, Ubierna D, Moyer MP, Núñez L, Villalobos C. A reciprocal shift in transient receptor potential channel 1 (TRPC1) and stromal interaction molecule 2 (STIM2) contributes to Ca2+ remodeling and cancer hallmarks in colorectal carcinoma cells. J Biol Chem 2014; 289:28765-82. [PMID: 25143380 DOI: 10.1074/jbc.m114.581678] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
We have investigated the molecular basis of intracellular Ca(2+) handling in human colon carcinoma cells (HT29) versus normal human mucosa cells (NCM460) and its contribution to cancer features. We found that Ca(2+) stores in colon carcinoma cells are partially depleted relative to normal cells. However, resting Ca(2+) levels, agonist-induced Ca(2+) increases, store-operated Ca(2+) entry (SOCE), and store-operated currents (ISOC) are largely enhanced in tumor cells. Enhanced SOCE and depleted Ca(2+) stores correlate with increased cell proliferation, invasion, and survival characteristic of tumor cells. Normal mucosa cells displayed small, inward Ca(2+) release-activated Ca(2+) currents (ICRAC) mediated by ORAI1. In contrast, colon carcinoma cells showed mixed currents composed of enhanced ICRAC plus a nonselective ISOC mediated by TRPC1. Tumor cells display increased expression of TRPC1, ORAI1, ORAI2, ORAI3, and STIM1. In contrast, STIM2 protein was nearly depleted in tumor cells. Silencing data suggest that enhanced ORAI1 and TRPC1 contribute to enhanced SOCE and differential store-operated currents in tumor cells, whereas ORAI2 and -3 are seemingly less important. In addition, STIM2 knockdown decreases SOCE and Ca(2+) store content in normal cells while promoting apoptosis resistance. These data suggest that loss of STIM2 may underlie Ca(2+) store depletion and apoptosis resistance in tumor cells. We conclude that a reciprocal shift in TRPC1 and STIM2 contributes to Ca(2+) remodeling and tumor features in colon cancer.
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Affiliation(s)
- Diego Sobradillo
- From the Institute of Molecular Biology and Genetics (IBGM), Spanish National Research Council (CSIC), 47003 Valladolid, Spain
| | - Miriam Hernández-Morales
- From the Institute of Molecular Biology and Genetics (IBGM), Spanish National Research Council (CSIC), 47003 Valladolid, Spain
| | - Daniel Ubierna
- From the Institute of Molecular Biology and Genetics (IBGM), Spanish National Research Council (CSIC), 47003 Valladolid, Spain
| | | | - Lucía Núñez
- the Department of Biochemistry and Molecular Biology and Physiology, University of Valladolid, 47003 Valladolid, Spain
| | - Carlos Villalobos
- From the Institute of Molecular Biology and Genetics (IBGM), Spanish National Research Council (CSIC), 47003 Valladolid, Spain,
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145
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Endoplasmic reticulum stress in insulin resistance and diabetes. Cell Calcium 2014; 56:311-22. [PMID: 25239386 DOI: 10.1016/j.ceca.2014.08.006] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 08/07/2014] [Indexed: 02/07/2023]
Abstract
The endoplasmic reticulum is the main intracellular Ca(2+) store for Ca(2+) release during cell signaling. There are different strategies to avoid ER Ca(2+) depletion. Release channels utilize first Ca(2+)-bound to proteins and this minimizes the reduction of the free luminal [Ca(2+)]. However, if release channels stay open after exhaustion of Ca(2+)-bound to proteins, then the reduction of the free luminal ER [Ca(2+)] (via STIM proteins) activates Ca(2+) entry at the plasma membrane to restore the ER Ca(2+) load, which will work provided that SERCA pump is active. Nevertheless, there are several noxious conditions that result in decreased activity of the SERCA pump such as oxidative stress, inflammatory cytokines, and saturated fatty acids, among others. These conditions result in a deficient restoration of the ER [Ca(2+)] and lead to the ER stress response that should facilitate recovery of the ER. However, if the stressful condition persists then ER stress ends up triggering cell death and the ensuing degenerative process leads to diverse pathologies; particularly insulin resistance, diabetes and several of the complications associated with diabetes. This scenario suggests that limiting ER stress should decrease the incidence of diabetes and the mobility and mortality associated with this illness.
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146
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Dubois C, Vanden Abeele F, Lehen'kyi V, Gkika D, Guarmit B, Lepage G, Slomianny C, Borowiec AS, Bidaux G, Benahmed M, Shuba Y, Prevarskaya N. Remodeling of channel-forming ORAI proteins determines an oncogenic switch in prostate cancer. Cancer Cell 2014; 26:19-32. [PMID: 24954132 DOI: 10.1016/j.ccr.2014.04.025] [Citation(s) in RCA: 165] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 03/05/2014] [Accepted: 04/24/2014] [Indexed: 12/19/2022]
Abstract
ORAI family channels have emerged as important players in malignant transformation, yet the way in which they reprogram cancer cells remains elusive. Here we show that the relative expression levels of ORAI proteins in prostate cancer are different from that in noncancerous tissue. By mimicking ORAI protein remodeling observed in primary tumors, we demonstrate in in vitro models that enhanced ORAI3 expression favors heteromerization with ORAI1 to form a novel channel. These channels support store-independent Ca(2+) entry, thereby promoting cell proliferation and a smaller number of functional homomeric ORAI1-based store-operated channels, which are important in supporting susceptibility to apoptosis. Thus, our findings highlight disrupted dynamic equilibrium of channel-forming proteins as an oncogenic mechanism.
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Affiliation(s)
- Charlotte Dubois
- Inserm U1003, Laboratory of Excellence, Ion Channels Science and Therapeutics, Equipe Labellisée par la Ligue Nationale Contre le Cancer, SIRIC ONCOLille, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq 59656, France
| | - Fabien Vanden Abeele
- Inserm U1003, Laboratory of Excellence, Ion Channels Science and Therapeutics, Equipe Labellisée par la Ligue Nationale Contre le Cancer, SIRIC ONCOLille, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq 59656, France.
| | - V'yacheslav Lehen'kyi
- Inserm U1003, Laboratory of Excellence, Ion Channels Science and Therapeutics, Equipe Labellisée par la Ligue Nationale Contre le Cancer, SIRIC ONCOLille, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq 59656, France
| | - Dimitra Gkika
- Inserm U1003, Laboratory of Excellence, Ion Channels Science and Therapeutics, Equipe Labellisée par la Ligue Nationale Contre le Cancer, SIRIC ONCOLille, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq 59656, France
| | - Basma Guarmit
- Inserm, INSERM U895, Centre Méditerranéen de Médecine Moléculaire, Hôpital l'Archet, Nice 06202, France
| | - Gilbert Lepage
- Inserm U1003, Laboratory of Excellence, Ion Channels Science and Therapeutics, Equipe Labellisée par la Ligue Nationale Contre le Cancer, SIRIC ONCOLille, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq 59656, France
| | - Christian Slomianny
- Inserm U1003, Laboratory of Excellence, Ion Channels Science and Therapeutics, Equipe Labellisée par la Ligue Nationale Contre le Cancer, SIRIC ONCOLille, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq 59656, France
| | - Anne Sophie Borowiec
- Inserm U1003, Laboratory of Excellence, Ion Channels Science and Therapeutics, Equipe Labellisée par la Ligue Nationale Contre le Cancer, SIRIC ONCOLille, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq 59656, France
| | - Gabriel Bidaux
- Inserm U1003, Laboratory of Excellence, Ion Channels Science and Therapeutics, Equipe Labellisée par la Ligue Nationale Contre le Cancer, SIRIC ONCOLille, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq 59656, France
| | - Mohamed Benahmed
- Inserm, INSERM U895, Centre Méditerranéen de Médecine Moléculaire, Hôpital l'Archet, Nice 06202, France
| | - Yaroslav Shuba
- Inserm U1003, Laboratory of Excellence, Ion Channels Science and Therapeutics, Equipe Labellisée par la Ligue Nationale Contre le Cancer, SIRIC ONCOLille, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq 59656, France; Bogomoletz Institute of Physiology and International Centre of Molecular Physiology of the National Academy of Sciences of Ukraine, Kiev 01024, Ukraine
| | - Natalia Prevarskaya
- Inserm U1003, Laboratory of Excellence, Ion Channels Science and Therapeutics, Equipe Labellisée par la Ligue Nationale Contre le Cancer, SIRIC ONCOLille, Université des Sciences et Technologies de Lille, Villeneuve d'Ascq 59656, France.
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147
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Store-operated Ca2+ entry does not control proliferation in primary cultures of human metastatic renal cellular carcinoma. BIOMED RESEARCH INTERNATIONAL 2014; 2014:739494. [PMID: 25126575 PMCID: PMC4119920 DOI: 10.1155/2014/739494] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 04/29/2014] [Accepted: 05/19/2014] [Indexed: 11/18/2022]
Abstract
Store-operated Ca2+ entry (SOCE) is activated following depletion of the inositol-1,4,5-trisphosphate (InsP3)-sensitive Ca2+ pool to regulate proliferation in immortalized cell lines established from either primary or metastatic lesions. The molecular nature of SOCE may involve both Stim1, which senses Ca2+ levels within the endoplasmic reticulum (ER) Ca2+ reservoir, and a number of a Ca2+-permeable channels on the plasma membrane, including Orai1, Orai3, and members of the canonical transient receptor (TRPC1–7) family of ion channels. The present study was undertaken to assess whether SOCE is expressed and controls proliferation in primary cultures isolated from secondary lesions of heavily pretreated metastatic renal cell carcinoma (mRCC) patients. SOCE was induced following pharmacological depletion of the ER Ca2+ store, but not by InsP3-dependent Ca2+ release. Metastatic RCC cells express Stim1-2, Orai1–3, and TRPC1–7 transcripts and proteins. In these cells, SOCE was insensitive to BTP-2, 10 µM Gd3+ and Pyr6, while it was inhibited by 100 µM Gd3+, 2-APB, and carboxyamidotriazole (CAI). Neither Gd3+ nor 2-APB or CAI impaired mRCC cell proliferation. Consistently, no detectable Ca2+ signal was elicited by growth factor stimulation. Therefore, a functional SOCE is expressed but does not control proliferation of mRCC cells isolated from patients resistant to multikinase inhibitors.
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148
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Nielsen N, Lindemann O, Schwab A. TRP channels and STIM/ORAI proteins: sensors and effectors of cancer and stroma cell migration. Br J Pharmacol 2014; 171:5524-40. [PMID: 24724725 DOI: 10.1111/bph.12721] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Revised: 03/24/2014] [Accepted: 04/03/2014] [Indexed: 01/05/2023] Open
Abstract
UNLABELLED Cancer cells are strongly influenced by host cells within the tumour stroma and vice versa. This leads to the development of a tumour microenvironment with distinct physical and chemical properties that are permissive for tumour progression. The ability to migrate plays a central role in this mutual interaction. Migration of cancer cells is considered as a prerequisite for tumour metastasis and the migration of host stromal cells is required for reaching the tumour site. Increasing evidence suggests that transient receptor potential (TRP) channels and STIM/ORAI proteins affect key calcium-dependent mechanisms implicated in both cancer and stroma cell migration. These include, among others, cytoskeletal remodelling, growth factor/cytokine signalling and production, and adaptation to tumour microenvironmental properties such as hypoxia and oxidative stress. In this review, we will summarize the current knowledge regarding TRP channels and STIM/ORAI proteins in cancer and stroma cell migration. We focus on how TRP channel or STIM/ORAI-mediated Ca(2+) signalling directly or indirectly influences cancer and stroma cell migration by affecting the above listed mechanisms. LINKED ARTICLES This article is part of a themed section on Cytoskeleton, Extracellular Matrix, Cell Migration, Wound Healing and Related Topics. To view the other articles in this section visit http://dx.doi.org/10.1111/bph.2014.171.issue-24.
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Affiliation(s)
- N Nielsen
- Institute of Physiology II, University of Münster, Münster, Germany
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149
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Schalper KA, Carvajal-Hausdorf D, Oyarzo MP. Possible role of hemichannels in cancer. Front Physiol 2014; 5:237. [PMID: 25018732 PMCID: PMC4073485 DOI: 10.3389/fphys.2014.00237] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 06/09/2014] [Indexed: 12/12/2022] Open
Abstract
In humans, connexins (Cxs) and pannexins (Panxs) are the building blocks of hemichannels. These proteins are frequently altered in neoplastic cells and have traditionally been considered as tumor suppressors. Alteration of Cxs and Panxs in cancer cells can be due to genetic, epigenetic and post-transcriptional/post-translational events. Activated hemichannels mediate the diffusional membrane transport of ions and small signaling molecules. In the last decade hemichannels have been shown to participate in diverse cell processes including the modulation of cell proliferation and survival. However, their possible role in tumor growth and expansion remains largely unexplored. Herein, we hypothesize about the possible role of hemichannels in carcinogenesis and tumor progression. To support this theory, we summarize the evidence regarding the involvement of hemichannels in cell proliferation and migration, as well as their possible role in the anti-tumor immune responses. In addition, we discuss the evidence linking hemichannels with cancer in diverse models and comment on the current technical limitations for their study.
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Affiliation(s)
- Kurt A Schalper
- Servicio Anatomía Patológica, Clínica Alemana de Santiago, Facultad de Medicina Clinica Alemana Universidad del Desarrollo Santiago, Chile ; Department of Pathology, Yale School of Medicine New Haven, CT, USA
| | | | - Mauricio P Oyarzo
- Servicio Anatomía Patológica, Clínica Alemana de Santiago, Facultad de Medicina Clinica Alemana Universidad del Desarrollo Santiago, Chile
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150
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Signaling mechanisms and disrupted cytoskeleton in the diphenyl ditelluride neurotoxicity. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:458601. [PMID: 25050142 PMCID: PMC4090446 DOI: 10.1155/2014/458601] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2014] [Accepted: 02/26/2014] [Indexed: 01/14/2023]
Abstract
Evidence from our group supports that diphenyl ditelluride (PhTe)2 neurotoxicity depends on modulation of signaling pathways initiated at the plasma membrane. The (PhTe)2-evoked signal is transduced downstream of voltage-dependent Ca2+ channels (VDCC), N-methyl-D-aspartate receptors (NMDA), or metabotropic glutamate receptors activation via different kinase pathways (protein kinase A, phospholipase C/protein kinase C, mitogen-activated protein kinases (MAPKs), and Akt signaling pathway). Among the most relevant cues of misregulated signaling mechanisms evoked by (PhTe)2 is the cytoskeleton of neural cells. The in vivo and in vitro exposure to (PhTe)2 induce hyperphosphorylation/hypophosphorylation of neuronal and glial intermediate filament (IF) proteins (neurofilaments and glial fibrillary acidic protein, resp.) in different brain structures of young rats. Phosphorylation of IFs at specific sites modulates their association/disassociation and interferes with important physiological roles, such as axonal transport. Disrupted cytoskeleton is a crucial marker of neurodegeneration and is associated with reactive astrogliosis and apoptotic cell death. This review focuses the current knowledge and important results on the mechanisms of (PhTe)2 neurotoxicity with special emphasis on the cytoskeletal proteins and their differential regulation by kinases/phosphatases and Ca2+-mediated mechanisms in developmental rat brain. We propose that the disrupted cytoskeletal homeostasis could support brain damage provoked by this neurotoxicant.
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