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Wang YS, Yeh TK, Chang WC, Liou JP, Liu YM, Huang WC. 2,6-Difluorobenzamide derivatives as store-operated calcium channel (SOC) inhibitors. Eur J Med Chem 2022; 243:114773. [PMID: 36179401 DOI: 10.1016/j.ejmech.2022.114773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 08/17/2022] [Accepted: 09/10/2022] [Indexed: 11/28/2022]
Abstract
The Ca2+ entry from store-operated Ca2+ channel (SOC) is involved in regulating colorectal cancer progression, such as cell migration. SOC activation is due to STIM1 translocation and interaction with Orai1 upon Ca2+ depletion in the ER. Numerous SOC inhibitors, like 2-APB, have been developed and demonstrated their inhibition effects in the preclinical stage. However, most currently used SOC inhibitors have higher cytotoxicity or opposite effects at different doses, and the drugs to target SOC in the clinic are lacking. In this study, a total of 13 difluorobenzamide compounds had been synthesized and examined the inhibitory effects on SOC with Ca2+ imaging and wound-healing migration assay. Among them, 2,6-Difluoro-N-(5-(4-fluorophenyl)pyridine-2-yl)benzamide (MPT0M004, 8a) demonstrated a prominent inhibitory ability on SOC. Furthermore, the cell proliferation assay results showed that MPT0M004 (8a) had lower cytotoxicity than 2-APB, the reference compound. In the pharmacokinetic study, MPT0M004 (8a) has a long half-life (T1/2 = 24 h) and lower daily dose administered intravenously with an oral bioavailability (F = 34%). Therefore, MPT0M004 (8a) has the potential to be a lead compound as a SOC inhibitor and further develop into a potential drug to treat colorectal cancer.
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Affiliation(s)
- Yu-Shiuan Wang
- Ph.D. Program in Clinical Drug Development of Chinese Herbal Medicine, College of Pharmacy, Taipei Medical University, 250 Wuxing Street, Taipei, 11031, Taiwan; Single-Molecule Biology Core Lab, Institute of Cellular and Organismic Biology (ICOB), Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei, 115, Taiwan
| | - Teng-Kuang Yeh
- Institute of Biotechnology and Pharmaceutical Research, National Health Research Institutes, No. 35, Keyan Road, Zhunan Town, Miaoli County, 350401, Taiwan
| | - Wei-Chiao Chang
- Department of Clinical Pharmacy, School of Pharmacy, Taipei Medical University, Taipei, 11031, Taiwan; Department of Pharmacy, Wan Fang Hospital, Taipei Medical University, Taipei, 11696, Taiwan; Integrative Research Center for Critical Care, Wan Fang Hospital, Taipei Medical University, Taipei, 11696, Taiwan
| | - Jing-Ping Liou
- TMU Research Center for Drug Discovery, Taipei Medical University, 250 Wuxing Street, Taipei, 11031, Taiwan; School of Pharmacy, College of Pharmacy, Taipei Medical University, 250 Wuxing Street, Taipei, 11031, Taiwan
| | - Yi-Min Liu
- TMU Research Center for Drug Discovery, Taipei Medical University, 250 Wuxing Street, Taipei, 11031, Taiwan; School of Pharmacy, College of Pharmacy, Taipei Medical University, 250 Wuxing Street, Taipei, 11031, Taiwan.
| | - Wan-Chen Huang
- Single-Molecule Biology Core Lab, Institute of Cellular and Organismic Biology (ICOB), Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei, 115, Taiwan.
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2
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Wang X, Li G, Zhang Y, Li L, Qiu L, Qian Z, Zhou S, Wang X, Li Q, Zhang H. Pan-Cancer Analysis Reveals Genomic and Clinical Characteristics of TRPV Channel-Related Genes. Front Oncol 2022; 12:813100. [PMID: 35174089 PMCID: PMC8841404 DOI: 10.3389/fonc.2022.813100] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/11/2022] [Indexed: 12/21/2022] Open
Abstract
Background Transient Receptor Potential channels (TRPs), a class of ion channels, were first described two decades ago. Many TRP family members are major participants in nociception and integration of heat and pain signals. Recent studies have revealed that subfamilies of this channel, such as members of transient receptor potential vanilloid (TRPV) channels, play important roles in breast, ovarian, prostate, and pancreatic cancers. Methods We performed a comprehensive analysis of TRPVs in 9125 tumor samples of 33 cancer types using multi-omics data extracted from The Cancer Genome Atlas (TCGA). We identified differences in mRNA expression in a pan-cancer analysis, and the genomic characteristics of single nucleotide variations, copy number variations, methylation features, and miRNA–mRNA interactions using data from TCGA. Finally, we evaluated the sensitivity and resistance to drugs targeting TRPV channel-related genes using the Cancer Therapeutics Response Portal (CTRP) and the Genomics of Drug Sensitivity in Cancer (GDSC) database. Finally, we validated the drug sensitive data and the importance of TRPV6 in two cancer cell lines using q-PCR assay, CCK8 assay, EdU assay and scratch assay. Results Extensive genetic alterations in TRPV channel-related genes and differences in gene expression were associated with the activity of cancer marker-related pathways. TRPV channel-related genes can be used as prognostic biomarkers. Several potential drugs, such as lapatinib, that may target TRPV channel-related genes were identified by mining the genomics of drug sensitivity. Conclusion This study revealed the genomic changes and clinical characteristics of TRPV channel-related regulatory factors in 33 types of tumors. This analysis may help uncover the TRPV channel-related genes associated with tumorigenesis. We also proposed novel strategies for tumor treatment.
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Affiliation(s)
- Xiaoxuan Wang
- Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Sino-US Center for Lymphoma and Leukemia Research, Tianjin, China
| | - Guanghao Li
- Department of Hepatobiliary Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin, China
| | - Yidan Zhang
- Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Sino-US Center for Lymphoma and Leukemia Research, Tianjin, China
| | - Lanfang Li
- Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Sino-US Center for Lymphoma and Leukemia Research, Tianjin, China
| | - Lihua Qiu
- Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Sino-US Center for Lymphoma and Leukemia Research, Tianjin, China
| | - Zhengzi Qian
- Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Sino-US Center for Lymphoma and Leukemia Research, Tianjin, China
| | - Shiyong Zhou
- Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Sino-US Center for Lymphoma and Leukemia Research, Tianjin, China
| | - Xianhuo Wang
- Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Sino-US Center for Lymphoma and Leukemia Research, Tianjin, China
- *Correspondence: Qiang Li, ; Xianhuo Wang, ; Huilai Zhang,
| | - Qiang Li
- Department of Hepatobiliary Cancer, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Tianjin, China
- *Correspondence: Qiang Li, ; Xianhuo Wang, ; Huilai Zhang,
| | - Huilai Zhang
- Department of Lymphoma, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin’s Clinical Research Center for Cancer, Sino-US Center for Lymphoma and Leukemia Research, Tianjin, China
- *Correspondence: Qiang Li, ; Xianhuo Wang, ; Huilai Zhang,
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3
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Hua QY, Zhang MH, Wang L, Bai LL, Li L, He H, Mustafa A, Liu HH, Song CL. Temperature-sensitive pathways may be involved in duck embryonic developmental recovery from blastoderm dormancy during hatching. Br Poult Sci 2020; 61:366-374. [PMID: 32290702 DOI: 10.1080/00071668.2020.1752910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
1. Birds' newly oviposited blastoderms can survive several weeks in a dormant state during low-temperature storage. Previous studies demonstrated that there is a critical temperature range from 19 to 27°C for chicken embryos. Within this range, the embryo will diapause in a dormant state; once the temperature rises above this range, the blastoderm will break dormancy. 2. Clarifying the mechanism that initiates duck embryo developmental recovery from blastoderm dormancy will be helpful to change temperature control to improve hatching in poultry production. It was hypothesised that there might be some temperature-sensitive genes involved in initiating duck embryo developmental recovery from blastoderm dormancy. 3. To test this hypothesis, the transcriptome of the newly oviposited duck blastoderm and duck embryo (incubated for 48 hours) were sequenced to screen for differentially expressed genes with functions that had been predicted by bioinformatics. 4. The results showed that there were 2416 differentially expressed genes between the two groups, 53 of which were involved in temperature-sensitive pathways. The protein-protein interaction network combined these 53 temperature-sensitive genes and another group of 65 genes, which enriched the development pathway. These results suggested that temperature-sensitive genes may be involved in growth and development related pathways.
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Affiliation(s)
- Q Y Hua
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University , Chengdu, Sichuan, P.R China
| | - M H Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University , Chengdu, Sichuan, P.R China
| | - L Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University , Chengdu, Sichuan, P.R China
| | - L L Bai
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University , Chengdu, Sichuan, P.R China
| | - L Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University , Chengdu, Sichuan, P.R China
| | - H He
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University , Chengdu, Sichuan, P.R China
| | - A Mustafa
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University , Chengdu, Sichuan, P.R China
| | - H H Liu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University , Chengdu, Sichuan, P.R China
| | - C L Song
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University , Chengdu, Sichuan, P.R China
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Bai Y, Qiao L, Xie N, Li Y, Nie Y, Pan Y, Shi Y, Wang J, Liu N. TOB1 suppresses proliferation in K-Ras wild-type pancreatic cancer. Cancer Med 2019; 9:1503-1514. [PMID: 31891232 PMCID: PMC7013073 DOI: 10.1002/cam4.2756] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2019] [Revised: 11/20/2019] [Accepted: 11/21/2019] [Indexed: 12/25/2022] Open
Abstract
TOB1 participates in various kinds of cancers. However, its role in pancreatic cancer has rarely been reported. In this study, we explored the expression and mechanisms of TOB1 in regulating the malignant phenotype of pancreatic cancer cells. TOB1 expression was determined by data mining and immunohistochemistry (IHC), and its localization was observed by immunofluorescence. CCK‐8 cell proliferation, colony formation, flow cytometric, transwell migration, and Western blot (WB) assays were used to examine how it impacts the malignant phenotype of pancreatic cancer. Furthermore, Foxa2 binding to TOB1 was tested by dual‐luciferase reporter assays, and RNA‐Seq was performed to identify signaling pathways. We found TOB1 was downregulated in pancreatic cancer tissues and was mainly located in the cytoplasm. TOB1 overexpression reduced the proliferation of K‐Ras wild‐type pancreatic cancer cells but made no difference to cell migration and invasion. Foxa2 overexpression significantly enhanced TOB1 promoter activity. Moreover, overexpressing TOB1 substantially enriched the calcium pathway in K‐Ras wild‐type pancreatic cancer cells. In conclusion, TOB1 may suppress the proliferation of K‐Ras wild‐type pancreatic cancer cells by regulating calcium pathway genes.
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Affiliation(s)
- Yuru Bai
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Department of Geriatric Respiratory and Endocrinology (The Third Unit of Cadre's Ward), the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Lu Qiao
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Ning Xie
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yan Li
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, Shaanxi, China.,Xijing Hospital of Digestive Diseases, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Yan Pan
- State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, Shaanxi, China.,Xijing Hospital of Digestive Diseases, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Yupeng Shi
- State Key Laboratory of Cancer Biology, the Fourth Military Medical University, Xi'an, Shaanxi, China.,Xijing Hospital of Digestive Diseases, Xijing Hospital, the Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Jinhai Wang
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Na Liu
- Department of Gastroenterology, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.,Shaanxi Key Laboratory of Gastrointestinal Motility Disorders, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
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Ashmore J, Olsen H, Sørensen N, Thrasivoulou C, Ahmed A. Wnts control membrane potential in mammalian cancer cells. J Physiol 2019; 597:5899-5914. [DOI: 10.1113/jp278661] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 10/23/2019] [Indexed: 01/30/2023] Open
Affiliation(s)
- Jonathan Ashmore
- Department of Neuroscience Physiology and Pharmacology and UCL Ear Institute University College London Gower Street London WC1E 6BT UK
| | - Hervør Olsen
- Sophion Bioscience A/S Baltorpvej 154 DK‐2750 Ballerup Denmark
| | - Naja Sørensen
- Sophion Bioscience A/S Baltorpvej 154 DK‐2750 Ballerup Denmark
| | - Christopher Thrasivoulou
- Research Department of Cell & Developmental Biology, Centre for Cell & Molecular Dynamics, Rockefeller Building University Street, University College London London WC1E 6JJ UK
| | - Aamir Ahmed
- Centre for Stem Cells and Regenerative Medicine King's College London, 28th Floor, Tower Wing, Guy's Hospital Great Maze Pond London SE1 9RT UK
- Prostate Cancer Research Centre, Division of Surgery, 3rd Floor Laboratories, Charles Bell House University College London 67 Riding House Street London W1W 7EJ UK
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ER Ca 2+ release and store-operated Ca 2+ entry - partners in crime or independent actors in oncogenic transformation? Cell Calcium 2019; 82:102061. [PMID: 31394337 DOI: 10.1016/j.ceca.2019.102061] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Revised: 06/21/2019] [Accepted: 06/26/2019] [Indexed: 02/06/2023]
Abstract
Ca2+ is a pleiotropic messenger that controls life and death decisions from fertilisation until death. Cellular Ca2+ handling mechanisms show plasticity and are remodelled throughout life to meet the changing needs of the cell. In turn, as the demands on a cell alter, for example through a change in its niche environment or its functional requirements, Ca2+ handling systems may be targeted to sustain the remodelled cellular state. Nowhere is this more apparent than in cancer. Oncogenic transformation is a multi-stage process during which normal cells become progressively differentiated towards a cancerous state that is principally associated with enhanced proliferation and avoidance of death. Ca2+ signalling is intimately involved in almost all aspects of the life of a transformed cell and alterations in Ca2+ handling have been observed in cancer. Moreover, this remodelling of Ca2+ signalling pathways is also required in some cases to sustain the transformed phenotype. As such, Ca2+ handling is hijacked by oncogenic processes to deliver and maintain the transformed phenotype. Central to generation of intracellular Ca2+ signals is the release of Ca2+ from the endoplasmic reticulum intracellular (ER) Ca2+ store via inositol 1,4,5-trisphosphate receptors (InsP3Rs). Upon depletion of ER Ca2+, store-operated Ca2+ entry (SOCE) across the plasma membrane occurs via STIM-gated Orai channels. SOCE serves to both replenish stores but also sustain Ca2+ signalling events. Here, we will discuss the role and regulation of these two signalling pathways and their interplay in oncogenic transformation.
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Rimessi A, Pedriali G, Vezzani B, Tarocco A, Marchi S, Wieckowski MR, Giorgi C, Pinton P. Interorganellar calcium signaling in the regulation of cell metabolism: A cancer perspective. Semin Cell Dev Biol 2019; 98:167-180. [PMID: 31108186 DOI: 10.1016/j.semcdb.2019.05.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 01/22/2023]
Abstract
Organelles were originally considered to be individual cellular compartments with a defined organization and function. However, recent studies revealed that organelles deeply communicate within each other via Ca2+ exchange. This communication, mediated by specialized membrane regions in close apposition between two organelles, regulate cellular functions, including metabolism and cell fate decisions. Advances in microscopy techniques, molecular biology and biochemistry have increased our understanding of these interorganelle platforms. Research findings suggest that interorganellar Ca2+ signaling, which is altered in cancer, influences tumorigenesis and tumor progression by controlling cell death programs and metabolism. Here, we summarize the available data on the existence and composition of interorganelle platforms connecting the endoplasmic reticulum with mitochondria, the plasma membrane, or endolysosomes. Finally, we provide a timely overview of the potential function of interorganellar Ca2+ signaling in maintaining cellular homeostasis.
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Affiliation(s)
- Alessandro Rimessi
- Dept. of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology and Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy.
| | - Gaia Pedriali
- Dept. of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology and Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy
| | - Bianca Vezzani
- Dept. of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology and Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy
| | - Anna Tarocco
- Dept. of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology and Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; Neonatal Intensive Care Unit, University Hospital S. Anna Ferrara, 44124 Ferrara, Italy
| | - Saverio Marchi
- Dept. of Clinical and Molecular Sciences, Polytechnical University of Marche, 60126 Ancona, Italy
| | | | - Carlotta Giorgi
- Dept. of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology and Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy
| | - Paolo Pinton
- Dept. of Morphology, Surgery and Experimental Medicine, Section of Pathology, Oncology and Experimental Biology and Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 44121 Ferrara, Italy; Maria Cecilia Hospital, GVM Care & Research, 48033 Cotignola, Ravenna, Italy.
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8
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Wu YY, Liu XY, Zhuo DX, Huang HB, Zhang FB, Liao SF. Decreased expression of TRPV1 in renal cell carcinoma: association with tumor Fuhrman grades and histopathological subtypes. Cancer Manag Res 2018; 10:1647-1655. [PMID: 29970964 PMCID: PMC6021007 DOI: 10.2147/cmar.s166390] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Purpose The aim of this study was to investigate whether the expression of the ligand-gated Ca2+ channel transient receptor potential vanilloid type-1 (TRPV1) in primary human renal cell carcinoma (RCC) is associated with clinicopathological features. Patients and methods Fresh and frozen primary tumor and normal peritumoral kidney tissues from 127 patients diagnosed with RCC were analyzed for TRPV1 expression by quantitative reverse transcription polymerase chain reaction (RT-PCR), Western blotting and immunohistochemistry. Results Quantitative RT-PCR revealed that TRPV1 was decreased 3.20-fold in RCC tissue vs normal peritumoral kidney tissue (p=0.012). Significantly different TRPV1 mRNA expression was detected in RCC tissues of different Fuhrman grades and histopathological subtypes (F=4.282, p=0.015 and F=5.205, p=0.014, respectively). Decreased TRPV1 expression was correlated with RCC histopathological subtype (R=-0.554, p=0.003) and Fuhrman grade (R=−0.525, p=0.006). Western blot analysis of TRPV1 protein expression showed similar results. Immunohistochemical analysis showed strong expression of TRPV1 in kidney tubules but demonstrated weak or no immunostaining in RCC tissues. Conclusion TRPV1 expression was decreased in RCC, which was significantly associated with tumor Fuhrman grades and histopathological subtypes. It seems to suggest that TRPV1 expression may be a valuable tool to predict the extent of RCC progression.
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Affiliation(s)
- Yong-Yang Wu
- Department of Urology, Affiliated Sanming First Hospital, Fujian Medical University, Sanming, Fujian 365100, China
| | - Xin-Yu Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan 610041, China
| | - De-Xiang Zhuo
- Department of Urology, Affiliated Sanming First Hospital, Fujian Medical University, Sanming, Fujian 365100, China
| | - Huai-Bin Huang
- Department of Urology, Affiliated Sanming First Hospital, Fujian Medical University, Sanming, Fujian 365100, China
| | - Fa-Biao Zhang
- Department of Urology, Affiliated Sanming First Hospital, Fujian Medical University, Sanming, Fujian 365100, China
| | - Shang-Fan Liao
- Department of Urology, Affiliated Sanming First Hospital, Fujian Medical University, Sanming, Fujian 365100, China
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Pierro C, Zhang X, Kankeu C, Trebak M, Bootman MD, Roderick HL. Oncogenic KRAS suppresses store-operated Ca 2+ entry and I CRAC through ERK pathway-dependent remodelling of STIM expression in colorectal cancer cell lines. Cell Calcium 2018; 72:70-80. [PMID: 29748135 PMCID: PMC6291847 DOI: 10.1016/j.ceca.2018.03.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 03/13/2018] [Accepted: 03/13/2018] [Indexed: 12/30/2022]
Abstract
The KRAS GTPase plays a fundamental role in transducing signals from plasma membrane growth factor receptors to downstream signalling pathways controlling cell proliferation, survival and migration. Activating KRAS mutations are found in 20% of all cancers and in up to 40% of colorectal cancers, where they contribute to dysregulation of cell processes underlying oncogenic transformation. Multiple KRAS-regulated cell functions are also influenced by changes in intracellular Ca2+ levels that are concurrently modified by receptor signalling pathways. Suppression of intracellular Ca2+ release mechanisms can confer a survival advantage in cancer cells, and changes in Ca2+ entry across the plasma membrane modulate cell migration and proliferation. However, inconsistent remodelling of Ca2+ influx and its signalling role has been reported in studies of transformed cells. To isolate the interaction between altered Ca2+ handling and mutated KRAS in colorectal cancer, we have previously employed isogenic cell line pairs, differing by the presence of an oncogenic KRAS allele (encoding KRASG13D), and have shown that reduced Ca2+ release from the ER and mitochondrial Ca2+ uptake contributes to the survival advantage conferred by oncogenic KRAS. Here we show in the same cell lines, that Store-Operated Ca2+ Entry (SOCE) and its underlying current, ICRAC are under the influence of KRASG13D. Specifically, deletion of the oncogenic KRAS allele resulted in enhanced STIM1 expression and greater Ca2+ influx. Consistent with the role of KRAS in the activation of the ERK pathway, MEK inhibition in cells with KRASG13D resulted in increased STIM1 expression. Further, ectopic expression of STIM1 in HCT 116 cells (which express KRASG13D) rescued SOCE, demonstrating a fundamental role of STIM1 in suppression of Ca2+ entry downstream of KRASG13D. These results add to the understanding of how ERK controls cancer cell physiology and highlight STIM1 as an important biomarker in cancerogenesis.
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Affiliation(s)
- Cristina Pierro
- Laboratory of Experimental Cardiology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium; Previously at Babraham Institute, Babraham Research Campus, Cambridge, UK
| | - Xuexin Zhang
- Department of Cellular and Molecular Physiology and Penn State Hershey Cancer Institute, Penn State College of Medicine, Hershey PA 17033, United States
| | - Cynthia Kankeu
- Laboratory of Experimental Cardiology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Mohamed Trebak
- Department of Cellular and Molecular Physiology and Penn State Hershey Cancer Institute, Penn State College of Medicine, Hershey PA 17033, United States
| | - Martin D Bootman
- Previously at Babraham Institute, Babraham Research Campus, Cambridge, UK; School of Life, Health and Chemical Sciences, The Open University, UK
| | - H Llewelyn Roderick
- Laboratory of Experimental Cardiology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium; Previously at Babraham Institute, Babraham Research Campus, Cambridge, UK.
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10
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Jardin I, Rosado JA. STIM and calcium channel complexes in cancer. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:1418-26. [DOI: 10.1016/j.bbamcr.2015.10.003] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 09/25/2015] [Accepted: 10/07/2015] [Indexed: 12/12/2022]
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Lkhagvadorj S, Kim JH, Oh SS, Lee MR, Jung JH, Chung HC, Cha SK, Eom M. Orai1 Expression Is Closely Related with Favorable Prognostic Factors in Clear Cell Renal Cell Carcinoma. J Korean Med Sci 2016; 31:879-85. [PMID: 27247496 PMCID: PMC4853666 DOI: 10.3346/jkms.2016.31.6.879] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 03/14/2016] [Indexed: 11/24/2022] Open
Abstract
Store-operated calcium (Ca(2+)) entry (SOCE) is the principal Ca(2+) entry route in non-excitable cells, including cancer cells. We previously demonstrated that Orai1 and STIM1, the molecular components of SOCE, are involved in tumorigenesis of clear cell renal cell carcinoma (CCRCC). However, a clinical relevance of Orai1 and STIM1 expression in CCRCC has been ill-defined. Here, we investigated the expression of Orai1 and STIM1 in CCRCC, and compared their expression with clinico-pathological parameters of CCRCC and the patients' outcome. Immunohistochemical staining for Orai1 and STIM1 was performed on 126 formalin fixed paraffin embedded tissue of CCRCC and western blot analysis for Orai1 was performed on the available fresh tissue. The results were compared with generally well-established clinicopathologic prognostic factors in CCRCC and patient survival. Membrane protein Orai1 is expressed in the nuclei in CCRCC, whereas STIM1 shows the cytosolic expression pattern in immunohistochemical staining. Orai1 expression level is inversely correlated with CCRCC tumor grade, whereas STIM1 expression level is not associated with tumor grade. The higher Orai1 expression is significantly associated with lower Fuhrman nuclear grade, pathologic T stage, and TNM stage and with favorable prognosis. The expression level of STIM1 is not correlated with CCRCC grade and clinical outcomes. Orai1 expression in CCRCC is associated with tumor progression and with favorable prognostic factors. These results suggest that Orai1 is an attractive prognostic marker and therapeutic target for CCRCC.
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Affiliation(s)
- Sayamaa Lkhagvadorj
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Korea
- Department of Pathology, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia
| | - Ji-Hee Kim
- Department of Physiology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Sung-Soo Oh
- Department of Occupational & Environmental Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Mi-Ra Lee
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jae Hung Jung
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Hyun Chul Chung
- Department of Urology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Seung-Kuy Cha
- Department of Physiology, Yonsei University Wonju College of Medicine, Wonju, Korea
- Department of Global Medical Science, Yonsei University Wonju College of Medicine, Wonju, Korea
- Institute of Lifestyle Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Minseob Eom
- Department of Pathology, Yonsei University Wonju College of Medicine, Wonju, Korea
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12
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Li X, Zhang Q, Fan K, Li B, Li H, Qi H, Guo J, Cao Y, Sun H. Overexpression of TRPV3 Correlates with Tumor Progression in Non-Small Cell Lung Cancer. Int J Mol Sci 2016; 17:437. [PMID: 27023518 PMCID: PMC4848893 DOI: 10.3390/ijms17040437] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 03/11/2016] [Accepted: 03/11/2016] [Indexed: 12/25/2022] Open
Abstract
(1) BACKGROUND: Transient receptor potential vanilloid 3 (TRPV3) is a member of the TRP channels family of Ca(2+)-permeant channels. The proteins of some TRP channels are highly expressed in cancer cells. This study aimed to assess the clinical significance and biological functions of TRPV3 in non-small cell lung cancer (NSCLC); (2) METHODS: Immunohistochemistry was used to detect the expression of TRPV3 in NSCLC tissues and adjacent noncancerous lung tissues. Western blot was used to detect the protein expressions of TRPV3, CaMKII, p-CaMKII, CyclinA, CyclinD, CyclinE1, CDK2, CDK4, and P27. Small interfering RNA was used to deplete TRPV3 expression. A laser scanning confocal microscope was used to measure intracellular calcium concentration ([Ca(2+)]i). Flow cytometry was used to analyze cell cycle; (3) RESULTS: TRPV3 was overexpressed in 65 of 96 (67.7%) human lung cancer cases and correlated with differentiation (p = 0.001) and TNM stage (p = 0.004). Importantly, TRPV3 expression was associated with short overall survival. In addition, blocking or knockdown of TRPV3 could inhibit lung cancer cell proliferation. Moreover, TRPV3 inhibition could decrease [Ca(2+)]i of lung cancer cells and arrest cell cycle at the G1/S boundary. Further results revealed that TRPV3 inhibition decreased expressions of p-CaMKII, CyclinA, CyclinD1, CyclinE, and increased P27 level; (4) CONCLUSIONS: Our findings demonstrate that TRPV3 was overexpressed in NSCLC and correlated with lung cancer progression. TRPV3 activation could promote proliferation of lung cancer cells. TRPV3 might serve as a potential companion drug target in NSCLC.
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Affiliation(s)
- Xiaolei Li
- Department of Pathology, Harbin Medical University-Daqing, Daqing 163319, China.
- Department of Scientific Research, Third Affiliated Hospital of Guizhou Medical University, Duyun 558000, China.
| | - Qianhui Zhang
- Department of Pharmacology, Harbin Medical University-Daqing, Daqing 163319, China.
| | - Kai Fan
- Department of Pathophysiology, Harbin Medical University-Daqing, Daqing 163319, China.
| | - Baiyan Li
- Department of Pharmacology, Harbin Medical University, Harbin 150081, China.
| | - Huifeng Li
- Department of Pathology, Daqing General Hospital Group Oilfield General Hospital, Daqing 163319, China.
| | - Hanping Qi
- Department of Pharmacology, Harbin Medical University-Daqing, Daqing 163319, China.
| | - Jing Guo
- Department of Pharmacology, Harbin Medical University-Daqing, Daqing 163319, China.
| | - Yonggang Cao
- Department of Pharmacology, Harbin Medical University-Daqing, Daqing 163319, China.
| | - Hongli Sun
- Department of Pharmacology, Harbin Medical University-Daqing, Daqing 163319, China.
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13
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Ghavideldarestani M, Atkin SL, Leese HJ, Sturmey RG. Expression and function of transient receptor potential channels in the female bovine reproductive tract. Theriogenology 2016; 86:551-61. [PMID: 27001231 DOI: 10.1016/j.theriogenology.2016.02.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Revised: 01/07/2016] [Accepted: 02/06/2016] [Indexed: 12/29/2022]
Abstract
The epithelium lining the oviduct is critical for early reproductive events, many of which are mediated via intracellular calcium ions. Despite this, little is known about the regulation of calcium homeostasis in the oviductal epithelium. Epithelial transient receptor potential channels (TRPCs) modulate calcium flux in other tissues, and their expression and functional regulation have therefore been examined using the bovine oviduct as a model for the human. The effects of FSH, LH, 17β-estradiol, and progesterone on TRPCs expression and intracellular calcium flux were determined. Transient receptor potential channels 1, 2, 3, 4, and 6 were expressed in the bovine reproductive tract, and their gene expression varied throughout the estrous cycle. In more detailed studies undertaken on TRPC1 and 6, we show that protein expression varied through the estrus cycle; specifically, 17β-estradiol, FSH, and LH individually and in combination upregulated TRPC1 and 6 expression in cultured bovine oviduct epithelial cells although progesterone antagonized these effects. Functional studies showed changes in calcium mobilization in bovine oviduct epithelial cells were dependent on TRPCs. In conclusion, TRPC1, 2, 3, 4, and 6 are present in the epithelium lining the bovine oviduct, and TRPC1 and 6 vary through the estrous cycle suggesting an important role in early reproductive function.
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Affiliation(s)
- Maryam Ghavideldarestani
- Centre for Cardiovascular and Metabolic Research, Hull York Medical School, University of Hull, Hull, UK.
| | - Stephen L Atkin
- Centre for Cardiovascular and Metabolic Research, Hull York Medical School, University of Hull, Hull, UK
| | - Henry J Leese
- Centre for Cardiovascular and Metabolic Research, Hull York Medical School, University of Hull, Hull, UK
| | - Roger G Sturmey
- Centre for Cardiovascular and Metabolic Research, Hull York Medical School, University of Hull, Hull, UK
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14
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Zhang SS, Xie X, Wen J, Luo KJ, Liu QW, Yang H, Hu Y, Fu JH. TRPV6 plays a new role in predicting survival of patients with esophageal squamous cell carcinoma. Diagn Pathol 2016; 11:14. [PMID: 26818094 PMCID: PMC4730645 DOI: 10.1186/s13000-016-0457-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 01/14/2016] [Indexed: 12/26/2022] Open
Abstract
Background TRPV6 is over-expressed and promotes the proliferation and invasion in many cancers. The association between the expression of TRPV6 and clinical outcome in esophageal squamous cell carcinoma (ESCC) has not been studied yet. We aim to elucidate the role of TRPV6 in predicting prognosis of patients with ESCC. Methods In the retrospective study, mRNA level of TRPV6 was examined in patients (N = 174) from Sun Yat-sen University Cancer Center (mRNA cohort) and protein level of TRPV6 was examined in patients (N = 218) from Linzhou Cancer Hospital (protein cohort). Statistical analysis was performed to test the clinical and prognostic significance of TRPV6. Results TRPV6 was down-regulated in ESCC tissues and cell lines. Patients with downregulation of TRPV6 trended to have a higher rate of advanced pT stage in both mRNA cohort (P = 0.089) and protein cohort (P = 0.073), though not statistically significant. No significant association was observed between TRPV6 expression and disease-specific survival (DSS) in both two cohorts. However, stratified survival analysis based on the gender showed that in mRNA cohort, downregulation of TRPV6 was associated with an unfavorable 3-year DSS in patients with male (47.3 % vs 63.6 %, P = 0.027) and with favorable 3-year DSS in patients with female (66.7 % vs 43.0 %, P = 0.031). The result was confirmed in protein cohort. Male patients with downregulation of TRPV6 had a poor 3-year DSS (20.0 % vs 57.1 %,P < 0.001) while female counterparts showed an enhanced 3-year DSS (56.1 % vs 28.6 %, P = 0.005). Conclusion TRPV6 is down-regulated in ESCC. As a predictive biomarker, TRPV6 plays a Janus-like role in predicting survival of male and female ESCC patients.
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Affiliation(s)
- Shui-Shen Zhang
- State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China. .,Guangdong Esophageal Cancer Research Institute, Guangzhou, People's Republic of China. .,Department of Thoracic Oncology, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China. .,Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China.
| | - Xuan Xie
- Department of Thoracic Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, People's Republic of China.
| | - Jing Wen
- State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China. .,Guangdong Esophageal Cancer Research Institute, Guangzhou, People's Republic of China. .,Department of Thoracic Oncology, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China.
| | - Kong-Jia Luo
- State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China. .,Guangdong Esophageal Cancer Research Institute, Guangzhou, People's Republic of China. .,Department of Thoracic Oncology, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China.
| | - Qian-Wen Liu
- State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China. .,Guangdong Esophageal Cancer Research Institute, Guangzhou, People's Republic of China. .,Department of Thoracic Oncology, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China.
| | - Hong Yang
- State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China. .,Guangdong Esophageal Cancer Research Institute, Guangzhou, People's Republic of China. .,Department of Thoracic Oncology, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China.
| | - Yi Hu
- State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China. .,Guangdong Esophageal Cancer Research Institute, Guangzhou, People's Republic of China. .,Department of Thoracic Oncology, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China.
| | - Jian-Hua Fu
- State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China. .,Guangdong Esophageal Cancer Research Institute, Guangzhou, People's Republic of China. .,Department of Thoracic Oncology, Sun Yat-Sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, 510060, People's Republic of China.
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15
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Pinto MCX, Kihara AH, Goulart VAM, Tonelli FMP, Gomes KN, Ulrich H, Resende RR. Calcium signaling and cell proliferation. Cell Signal 2015; 27:2139-49. [PMID: 26275497 DOI: 10.1016/j.cellsig.2015.08.006] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 08/04/2015] [Accepted: 08/10/2015] [Indexed: 12/17/2022]
Abstract
Cell proliferation is orchestrated through diverse proteins related to calcium (Ca(2+)) signaling inside the cell. Cellular Ca(2+) influx that occurs first by various mechanisms at the plasma membrane, is then followed by absorption of Ca(2+) ions by mitochondria and endoplasmic reticulum, and, finally, there is a connection of calcium stores to the nucleus. Experimental evidence indicates that the fluctuation of Ca(2+) from the endoplasmic reticulum provides a pivotal and physiological role for cell proliferation. Ca(2+) depletion in the endoplasmatic reticulum triggers Ca(2+) influx across the plasma membrane in an phenomenon called store-operated calcium entries (SOCEs). SOCE is activated through a complex interplay between a Ca(2+) sensor, denominated STIM, localized in the endoplasmic reticulum and a Ca(2+) channel at the cell membrane, denominated Orai. The interplay between STIM and Orai proteins with cell membrane receptors and their role in cell proliferation is discussed in this review.
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Affiliation(s)
- Mauro Cunha Xavier Pinto
- Departamento de Bioquímica e Imunologia, Instituto de Ciência Biológicas, Univtreersidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil; Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Presyes 748, 05508-000 São Paulo, SP, Brazil; Instituto Nanocell, Rua Santo Antônio, 420, 35500-041 Divinópolis, MG, Brazil
| | - Alexandre Hiroaki Kihara
- Universidade Federal do ABC, Centro de Matemática, Computação e Cognição, Rua Arcturus (Jd Antares), 09606-070, São Bernardo do Campo, SP, Brazil
| | - Vânia A M Goulart
- Departamento de Bioquímica e Imunologia, Instituto de Ciência Biológicas, Univtreersidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil; Instituto Nanocell, Rua Santo Antônio, 420, 35500-041 Divinópolis, MG, Brazil
| | - Fernanda M P Tonelli
- Departamento de Bioquímica e Imunologia, Instituto de Ciência Biológicas, Univtreersidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil; Instituto Nanocell, Rua Santo Antônio, 420, 35500-041 Divinópolis, MG, Brazil
| | - Katia N Gomes
- Departamento de Bioquímica e Imunologia, Instituto de Ciência Biológicas, Univtreersidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil
| | - Henning Ulrich
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Presyes 748, 05508-000 São Paulo, SP, Brazil
| | - Rodrigo R Resende
- Departamento de Bioquímica e Imunologia, Instituto de Ciência Biológicas, Univtreersidade Federal de Minas Gerais, Av. Antônio Carlos, 6627, 31270-901 Belo Horizonte, MG, Brazil; Instituto Nanocell, Rua Santo Antônio, 420, 35500-041 Divinópolis, MG, Brazil.
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16
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Transient Receptor Potential Channel 1 Deficiency Impairs Host Defense and Proinflammatory Responses to Bacterial Infection by Regulating Protein Kinase Cα Signaling. Mol Cell Biol 2015; 35:2729-39. [PMID: 26031335 DOI: 10.1128/mcb.00256-15] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2015] [Accepted: 05/19/2015] [Indexed: 02/05/2023] Open
Abstract
Transient receptor potential channel 1 (TRPC1) is a nonselective cation channel that is required for Ca(2+) homeostasis necessary for cellular functions. However, whether TRPC1 is involved in infectious disease remains unknown. Here, we report a novel function for TRPC1 in host defense against Gram-negative bacteria. TRPC1(-/-) mice exhibited decreased survival, severe lung injury, and systemic bacterial dissemination upon infection. Furthermore, silencing of TRPC1 showed decreased Ca(2+) entry, reduced proinflammatory cytokines, and lowered bacterial clearance. Importantly, TRPC1 functioned as an endogenous Ca(2+) entry channel critical for proinflammatory cytokine production in both alveolar macrophages and epithelial cells. We further identified that bacterium-mediated activation of TRPC1 was dependent on Toll-like receptor 4 (TLR4), which induced endoplasmic reticulum (ER) store depletion. After activation of phospholipase Cγ (PLC-γ), TRPC1 mediated Ca(2+) entry and triggered protein kinase Cα (PKCα) activity to facilitate nuclear translocation of NF-κB/Jun N-terminal protein kinase (JNK) and augment the proinflammatory response, leading to tissue damage and eventually mortality. These findings reveal that TRPC1 is required for host defense against bacterial infections through the TLR4-TRPC1-PKCα signaling circuit.
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17
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Selvaraj S, Sun Y, Sukumaran P, Singh BB. Resveratrol activates autophagic cell death in prostate cancer cells via downregulation of STIM1 and the mTOR pathway. Mol Carcinog 2015; 55:818-31. [PMID: 25917875 DOI: 10.1002/mc.22324] [Citation(s) in RCA: 125] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 03/05/2015] [Accepted: 03/16/2015] [Indexed: 12/21/2022]
Abstract
Resveratrol (RSV), a natural polyphenol, has been suggested to induce cell cycle arrest and activate apoptosis-mediated cell death in several cancer cells, including prostate cancer. However, several molecular mechanisms have been proposed on its chemopreventive action, the precise mechanisms by which RSV exerts its anti-proliferative effect in androgen-independent prostate cancer cells remain questionable. In the present study, we show that RSV activates autophagic cell death in PC3 and DU145 cells, which was dependent on stromal interaction molecule 1 (STIM1) expression. RSV treatment decreases STIM1 expression in a time-dependent manner and attenuates STIM1 association with TRPC1 and Orai1. Furthermore, RSV treatment also decreases ER calcium storage and store operated calcium entry (SOCE), which induces endoplasmic reticulum (ER) stress, thereby, activating AMPK and inhibiting the AKT/mTOR pathway. Similarly, inhibition of SOCE by SKF-96365 decreases the survival and proliferation of PC3 and DU145 cells and inhibits AKT/mTOR pathway and induces autophagic cell death. Importantly, SOCE inhibition and subsequent autophagic cell death caused by RSV was reversed by STIM1 overexpression. STIM1 overexpression restored SOCE, prevents the loss of mTOR phosphorylation and decreased the expression of CHOP and LC3A in PC3 cells. Taken together, for the first time, our results revealed that RSV induces autophagy-mediated cell death in PC3 and DU145 cells through regulation of SOCE mechanisms, including downregulating STIM1 expression and trigger ER stress by depleting ER calcium pool.
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Affiliation(s)
- Senthil Selvaraj
- Department of Basic Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota.,Qatar Cardiovascular Research Center, Qatar Foundation, Doha, Qatar
| | - Yuyang Sun
- Department of Basic Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota
| | - Pramod Sukumaran
- Department of Basic Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota
| | - Brij B Singh
- Department of Basic Sciences, School of Medicine and Health Sciences, University of North Dakota, Grand Forks, North Dakota
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18
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Zui PAN, JianJie MA. Open Sesame: treasure in store-operated calcium entry pathway for cancer therapy. SCIENCE CHINA-LIFE SCIENCES 2014; 58:48-53. [PMID: 25481035 PMCID: PMC4765918 DOI: 10.1007/s11427-014-4774-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Accepted: 10/21/2014] [Indexed: 11/26/2022]
Abstract
Store-operated Ca2+ entry (SOCE) controls intracellular Ca2+ homeostasis and regulates a wide range of cellular events including proliferation, migration and invasion. The discovery of STIM proteins as Ca2+ sensors and Orai proteins as Ca2+ channel pore forming units provided molecular tools to understand the physiological function of SOCE. Many studies have revealed the pathophysiological roles of Orai and STIM in tumor cells. This review focuses on recent advances in SOCE and its contribution to tumorigenesis. Altered Orai and/or STIM functions may serve as biomarkers for cancer prognosis, and targeting the SOCE pathway may provide a novel means for cancer treatment.
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Affiliation(s)
- PAN Zui
- Department of Internal Medicine, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Comprehensive Cancer Center, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Corresponding author (; )
| | - MA JianJie
- Department of Surgery, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Davis Heart and Lung Research Institute, The Ohio State University Wexner Medical Center, Columbus, OH 43210, USA
- Corresponding author (; )
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19
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Holzmann C, Kilch T, Kappel S, Armbrüster A, Jung V, Stöckle M, Bogeski I, Schwarz EC, Peinelt C. ICRAC controls the rapid androgen response in human primary prostate epithelial cells and is altered in prostate cancer. Oncotarget 2014; 4:2096-107. [PMID: 24240085 PMCID: PMC3875772 DOI: 10.18632/oncotarget.1483] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Labelled 5α-dihydrotestosterone (DHT) binding experiments have shown that expression levels of (yet unidentified) membrane androgen receptors (mAR) are elevated in prostate cancer and correlate with a negative prognosis. However, activation of these receptors which mediate a rapid androgen response can counteract several cancer hallmark functions such as unlimited proliferation, enhanced migration, adhesion and invasion and the inability to induce apoptosis. Here, we investigate the downstream signaling pathways of mAR and identify rapid DHT induced activation of store-operated Ca2+ entry (SOCE) in primary cultures of human prostate epithelial cells (hPEC) from non-tumorous tissue. Consequently, down-regulation of Orai1, the main molecular component of Ca2+ release-activated Ca2+ (CRAC) channels results in an almost complete loss of DHT induced SOCE. We demonstrate that this DHT induced Ca2+ influx via Orai1 is important for rapid androgen triggered prostate specific antigen (PSA) release. We furthermore identified alterations of the molecular components of CRAC channels in prostate cancer. Three lines of evidence indicate that prostate cancer cells down-regulate expression of the Orai1 homolog Orai3: First, Orai3 mRNA expression levels are significantly reduced in tumorous tissue when compared to non-tumorous tissue from prostate cancer patients. Second, mRNA expression levels of Orai3 are decreased in prostate cancer cell lines LNCaP and DU145 when compared to hPEC from healthy tissue. Third, the pharmacological profile of CRAC channels in prostate cancer cell lines and hPEC differ and siRNA based knock-down experiments indicate changed Orai3 levels are underlying the altered pharmacological profile. The cancer-specific composition and pharmacology of CRAC channels identifies CRAC channels as putative targets in prostate cancer therapy.
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20
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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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21
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Kim MH, Seo JB, Burnett LA, Hille B, Koh DS. Characterization of store-operated Ca2+ channels in pancreatic duct epithelia. Cell Calcium 2013; 54:266-75. [PMID: 23968882 PMCID: PMC3809127 DOI: 10.1016/j.ceca.2013.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 07/18/2013] [Accepted: 07/20/2013] [Indexed: 11/30/2022]
Abstract
Store-operated Ca2+ channels (SOCs) are activated by depletion of intracellular Ca2+ stores following agonist-mediated Ca2+ release. Previously we demonstrated that Ca2+ influx through SOCs elicits exocytosis efficiently in pancreatic duct epithelial cells (PDEC). Here we describe the biophysical, pharmacological, and molecular properties of the duct epithelial SOCs using Ca2+ imaging, whole-cell patch-clamp, and molecular biology. In PDEC, agonists of purinergic, muscarinic, and adrenergic receptors coupled to phospholipase C activated SOC-mediated Ca2+ influx as Ca2+ was released from intracellular stores. Direct measurement of [Ca2+] in the ER showed that SOCs greatly slowed depletion of the ER. Using IP3 or thapsigargin in the patch pipette elicited inwardly rectifying SOC currents. The currents increased ∼8-fold after removal of extracellular divalent cations, suggesting competitive permeation between mono- and divalent cations. The current was completely blocked by high doses of La3+ and 2-aminoethoxydiphenyl borate (2-APB) but only partially depressed by SKF-96365. In polarized PDEC, SOCs were localized specifically to the basolateral membrane. RT-PCR screening revealed the expression of both STIM and Orai proteins for the formation of SOCs in PDEC. By expression of fluorescent STIM1 and Orai1 proteins in PDEC, we confirmed that colocalization of the two proteins increases after store depletion. In conclusion, basolateral Ca2+ entry through SOCs fills internal Ca2+ stores depleted by external stimuli and will facilitate cellular processes dependent on cytoplasmic Ca2+ such as salt and mucin secretion from the exocrine pancreatic ducts.
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Affiliation(s)
- Mean-Hwan Kim
- Department of Physics, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Jong Bae Seo
- Department of Physiology & Biophysics, University of Washington, Seattle, Washington, USA
| | - Lindsey A. Burnett
- Department of Physiology & Biophysics, University of Washington, Seattle, Washington, USA
| | - Bertil Hille
- Department of Physiology & Biophysics, University of Washington, Seattle, Washington, USA
| | - Duk-Su Koh
- Department of Physics, Pohang University of Science and Technology, Pohang, Republic of Korea
- Department of Physiology & Biophysics, University of Washington, Seattle, Washington, USA
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22
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The apoptosis of non-small cell lung cancer induced by cisplatin through modulation of STIM1. ACTA ACUST UNITED AC 2013; 65:1073-81. [PMID: 23714431 DOI: 10.1016/j.etp.2013.04.003] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 04/19/2013] [Indexed: 11/21/2022]
Abstract
Cis-diamminedichloroplatinum (II) (cisplatin) is one of the most active antitumor agents used in human chemotherapy of non-small cell lung cancer. Cisplatin forms crosslinked DNA adducts and its cytotoxicity has been shown to be mediated by propagation of DNA damage recognition signals to downstream pathways prompting apoptosis. The steps involved in the process include changes in Ca(2+) signaling with dysregulated tumor cell turn-over. Stromal interaction molecules 1 (STIM1), as one of the most potent tumor suppressor genes, are identified as the endoplasmic-reticulum (ER) Ca(2+) sensor controlling store-operated Ca(2+) entry (SOCE) in non-excitable cells, which is main pathway to extracellular Ca(2+) influx. Its role in STIM1 cisplatin-induced apoptosis of non-small cell lung cancer was the focus of study with focus on SOCE inhibitors 2-APB- and SKF96365-cisplatin-induced apoptosis in the non-small cell lung cancer (NSCLC) cell lines A549 and H460. In this experimental model, cisplatin-induced apoptosis and decreased concentration of intracellular Ca(2+) was demonstrated. The expression of STIM1 was significantly higher in carcinoma tissue than in the adjacent non-neoplastic lung tissue. These findings support the conclusion that STIM1 may play an important role in the development of NSCLC which makes drugs that repress the expression of STIM1 to be a potential target for lung cancer therapy.
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24
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Derouiche S, Warnier M, Mariot P, Gosset P, Mauroy B, Bonnal JL, Slomianny C, Delcourt P, Prevarskaya N, Roudbaraki M. Bisphenol A stimulates human prostate cancer cell migration via remodelling of calcium signalling. SPRINGERPLUS 2013; 2:54. [PMID: 23450760 PMCID: PMC3581770 DOI: 10.1186/2193-1801-2-54] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Accepted: 02/04/2013] [Indexed: 11/26/2022]
Abstract
Bisphenol A (BPA), the principal constituent of reusable water bottles, metal cans, and plastic food containers, has been shown to be involved in human prostate cancer (PCa) cell proliferation. The aim of the present study was to explore the effect of BPA on PCa cell migration and the pathways involved in these processes. Using the transwell technique, we clearly show for the first time that the pre-treatment of the cells with BPA (1–10 nM) induces human PCa cell migration. Using a calcium imaging technique, we show that BPA pre-treatment induces an amplification of Store-Operated Calcium Entry (SOCE) in LNCaP cells. RT-PCR and Western blot experiments allowed the identification of the ion channel proteins which are up-regulated by BPA pre-treatments. These include the Orai1 protein, which is known as an important SOCE actor in various cell systems, including human PCa cells. Using a siRNA strategy, we observed that BPA-induced amplification of SOCE was Orai1-dependent. Interestingly, the BPA-induced PCa cell migration was suppressed when the calcium entry was impaired by the use of SOCE inhibitors (SKF96365, BTP2), or when the extracellular calcium was chelated. Taken together, the results presented here show that BPA induces PCa cells migration via a modulation of the ion channel protein expression involved in calcium entry and in cancer cell migration. The present data provide novel insights into the molecular mechanisms involved in the effects of an environmental factor on cancer cells and suggest both the necessity of preventive measures and the possibility of targeting ion channels in the treatment of PCa cell metastasis.
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Affiliation(s)
- Sandra Derouiche
- Inserm, U-1003, Equipe labellisée par la Ligue Nationale contre le cancer, Villeneuve d'Ascq, France ; Laboratory of Excellence, Ion Channels Science and Therapeutics; Université Lille I Sciences et Technologies, Villeneuve d'Ascq, France
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25
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Schindl R, Fritsch R, Jardin I, Frischauf I, Kahr H, Muik M, Riedl MC, Groschner K, Romanin C. Canonical transient receptor potential (TRPC) 1 acts as a negative regulator for vanilloid TRPV6-mediated Ca2+ influx. J Biol Chem 2012; 287:35612-35620. [PMID: 22932896 PMCID: PMC3471760 DOI: 10.1074/jbc.m112.400952] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
TRP proteins mostly assemble to homomeric channels but can also heteromerize, preferentially within their subfamilies. The TRPC1 protein is the most versatile member and forms various TRPC channel combinations but also unique channels with the distantly related TRPP2 and TRPV4. We show here a novel cross-family interaction between TRPC1 and TRPV6, a Ca2+ selective member of the vanilloid TRP subfamily. TRPV6 exhibited substantial co-localization and in vivo interaction with TRPC1 in HEK293 cells, however, no interaction was observed with TRPC3, TRPC4, or TRPC5. Ca2+ and Na+ currents of TRPV6-overexpressing HEK293 cells are significantly reduced by co-expression of TRPC1, correlating with a dramatically suppressed plasma membrane targeting of TRPV6. In line with their intracellular retention, remaining currents of TRPC1 and TRPV6 co-expression resemble in current-voltage relationship that of TRPV6. Studying the N-terminal ankyrin like repeat domain, structurally similar in the two proteins, we have found that these cytosolic segments were sufficient to mediate a direct heteromeric interaction. Moreover, the inhibitory role of TRPC1 on TRPV6 influx was also maintained by expression of only its N-terminal ankyrin-like repeat domain. Our experiments provide evidence for a functional interaction of TRPC1 with TRPV6 that negatively regulates Ca2+ influx in HEK293 cells.
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Affiliation(s)
- Rainer Schindl
- Institute for Biophysics, University of Linz, A-4020 Linz, Austria.
| | - Reinhard Fritsch
- Institute for Biophysics, University of Linz, A-4020 Linz, Austria
| | - Isaac Jardin
- Department of Physiology, University of Extremadura, 10003 Caceres, Spain
| | - Irene Frischauf
- Institute for Biophysics, University of Linz, A-4020 Linz, Austria
| | - Heike Kahr
- School of Engineering/Enviromental/Sciences, University of Applied Sciences Upper Austria, A-4600 Wels, Austria
| | - Martin Muik
- Institute for Biophysics, University of Linz, A-4020 Linz, Austria
| | | | - Klaus Groschner
- Institute of Pharmacology and Toxicology, University of Graz, A-8010 Graz, Austria
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26
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Identification of ryanodine receptor isoforms in prostate DU-145, LNCaP, and PWR-1E cells. Biochem Biophys Res Commun 2012; 425:431-5. [PMID: 22846571 DOI: 10.1016/j.bbrc.2012.07.119] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Accepted: 07/20/2012] [Indexed: 01/03/2023]
Abstract
The ryanodine receptor (RyR) is a large, intracellular calcium (Ca(2+)) channel that is associated with several accessory proteins and is an important component of a cell's ability to respond to changes in the environment. Three isoforms of the RyR exist and are well documented for skeletal and cardiac muscle and the brain, but the isoforms in non-excitable cells are poorly understood. The aggressiveness of breast cancers in women has been positively correlated with the expression of the RyR in breast tumor tissue, but it is unknown if this is limited to specific isoforms. Identification and characterization of RyRs in cancer models is important in understanding the role of the RyR channel complex in cancer and as a potential therapeutic target. The objective of this report was to identify the RyR isoforms expressed in widely used prostate cancer cell lines, DU-145 and LNCaP, and the non-tumorigenic prostate cell line, PWR-1E. Oligonucleotide primers specific for each isoform were used in semi-quantitative and real-time PCR to determine the identification and expression levels of the RyR isoforms. RyR1 was expressed in the highest amount in DU-145 tumor cells, expression was 0.48-fold in the non-tumor cell line PWR-1E compared to DU-145 cells, and no expression was observed in LNCaP tumor cells. DU-145 cells had the lowest expression of RyR2. The expression was 26- and 15-fold higher in LNCaP and PWR-1E cells, respectively. RyR3 expression was not observed in any of the cell lines. All cell types released Ca(2+) in response to caffeine showing they had functional RyRs. Total cellular RyR-associated Ca(2+) release is determined by both the number of activated RyRs and its accessory proteins which modulate the receptor. Our results suggest that the correlation between the expression of the RyR and tumor aggression is not related to specific RyR isoforms, but may be related to the activity and number of receptors.
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27
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Lehen'kyi V, Raphaël M, Prevarskaya N. The role of the TRPV6 channel in cancer. J Physiol 2012; 590:1369-76. [PMID: 22331416 DOI: 10.1113/jphysiol.2011.225862] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Abstract The TRPV6 channel belongs to the superfamily of transient receptor potential (TRP) channels, subfamily vanilloid, member 6. Its expression in health is mainly confined to epithelial tissue of different organs such as digestive tract, kidney, testis, ovaries and skin. Due to its high calcium selectivity over other TRP channels, this channel was shown to participate in close regulation of calcium homeostasis in the body. In cancer a number of pieces of evidence demonstrate its upregulation and correlation with the advanced stages in prostate, colon, breast, thyroid, and ovarian carcinomas. Little is known about its role in initiation or progression for most of cancers, though in prostate cancer its oncogenic potential in vitro has been suggested. The most probable mechanisms involve calcium signalling in the control of processes such as proliferation and apoptosis resistance, though in some cases first evidence was reported as to its likely protective role in some cancers such as colon cancer. Further studies are needed to confirm whether this channel does really have an oncogenic potential or is just the last hope for transformed cells/tissues to stop cancer.
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Affiliation(s)
- V'yacheslav Lehen'kyi
- Inserm, U-1003, Equipe labellisée par la Ligue Nationale contre le cancer, Villeneuve d'Ascq, France
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28
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Bogeski I, Al-Ansary D, Qu B, Niemeyer BA, Hoth M, Peinelt C. Pharmacology of ORAI channels as a tool to understand their physiological functions. Expert Rev Clin Pharmacol 2012; 3:291-303. [PMID: 22111611 DOI: 10.1586/ecp.10.23] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Store-operated Ca(2+) entry is a major Ca(2+) entry mechanism that is present in most cell types. In immune cells, store-operated Ca(2+) entry is almost exclusively mediated by Ca(2+) release-activated Ca(2+) (CRAC) channels. Ca(2+) entry through these channels and the corresponding cytosolic Ca(2+) signals are required for many immune cell functions, including all aspects of T-cell activation. ORAI proteins are the molecular correlates for the CRAC channels. The three human members, ORAI1, ORAI2 and ORAI3, are activated through the stromal interaction molecules (STIM)1 and 2 following depletion of endoplasmic reticulum Ca(2+) stores. Different combinations of STIM and ORAI can form different CRAC channels with distinct biophysical properties. In this article, we review and discuss mechanistic and functional implications of two important CRAC/ORAI inhibitors, 2-APB and BTP2, and the antibiotic G418 that has also been reported to interfere with ORAI channel function. The use of pharmacological tools should help to assign distinct physiological and pathophysiological functions to different STIM-ORAI protein complexes.
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Affiliation(s)
- Ivan Bogeski
- Department of Biophysics, Saarland University, Homburg, Germany
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29
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Abstract
Ion channels and G-protein-coupled receptors (GPCRs) play a fundamental role in cancer progression by influencing Ca(2+) influx and signaling pathways in transformed cells. Transformed cells thrive in a hostile environment that is characterized by extracellular acidosis that promotes the pathological phenotype. The pathway(s) by which extracellular protons achieve this remain unclear. Here, a role for proton-sensing ion channels and GPCRs as mediators of the effects of extracellular protons in cancer cells is discussed.
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Affiliation(s)
- Maike Glitsch
- Department of Physiology, Anatomy and Genetics, Oxford University, Oxford, United Kingdom.
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30
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Mergler S, Cheng Y, Skosyrski S, Garreis F, Pietrzak P, Kociok N, Dwarakanath A, Reinach PS, Kakkassery V. Altered calcium regulation by thermosensitive transient receptor potential channels in etoposide-resistant WERI-Rb1 retinoblastoma cells. Exp Eye Res 2012; 94:157-73. [DOI: 10.1016/j.exer.2011.12.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2011] [Revised: 11/04/2011] [Accepted: 12/03/2011] [Indexed: 10/14/2022]
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31
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Wu Y, Miyamoto T, Li K, Nakagomi H, Sawada N, Kira S, Kobayashi H, Zakohji H, Tsuchida T, Fukazawa M, Araki I, Takeda M. Decreased expression of the epithelial Ca2+ channel TRPV5 and TRPV6 in human renal cell carcinoma associated with vitamin D receptor. J Urol 2011; 186:2419-25. [PMID: 22019165 DOI: 10.1016/j.juro.2011.07.086] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Indexed: 01/02/2023]
Abstract
PURPOSE We investigated the expression of epithelial Ca(2+) channel TRPV (transient receptor potential vanilloid subfamily) 5 and 6, and vitamin D receptor in primary human renal cell carcinoma and benign peritumor tissues, and assessed the possible association between TRPV5/6 and vitamin D receptor expression. MATERIALS AND METHODS Fresh-frozen primary tumor and peritumor tissues from 27 patients diagnosed with renal cell carcinoma were analyzed for TRPV5/6 and vitamin D receptor expression by quantitative reverse transcriptase-polymerase chain reaction, Western blot and immunohistochemistry. RESULTS Quantitative reverse transcriptase-polymerase chain reaction revealed that TRPV5/6 and vitamin D receptor expression was decreased 38.11, 4.44 and 3.20 times in renal cell carcinoma vs normal kidney tissue (p = 0.012, 0.002 and 0.020, respectively). Relatively higher expression was noted for chromophobe renal cell carcinoma than for the other renal cell carcinoma subtypes. Vitamin D receptor mRNA expression significantly correlated with that of TRPV6 (r = 0.508, p = 0.007) and TRPV5 (r = 0.697, p = 0.032) in renal cell carcinoma. Western blot showed results similar to those of reverse transcriptase-polymerase chain reaction. Different expression was detected between kidney and renal cell carcinoma tissue. Immunohistochemical analysis verified strong detection of TRPV5/6 and vitamin D receptor in distal nephrons but demonstrated weak or no immunostaining much more often in renal cell carcinoma. CONCLUSIONS Decreased TRPV5/V6 expression was noted in renal cell carcinoma, which correlated with vitamin D receptor. Different expression was also detected among the different renal cell carcinoma histopathological subtypes. Our observations suggest that altered vitamin D receptor expression may be associated with renal cell carcinoma carcinogenesis via TRPV5/6.
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Affiliation(s)
- Yongyang Wu
- Department of Urology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Yamanashi, Japan
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32
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Lehen'kyi V, Shapovalov G, Skryma R, Prevarskaya N. Ion channnels and transporters in cancer. 5. Ion channels in control of cancer and cell apoptosis. Am J Physiol Cell Physiol 2011; 301:C1281-9. [PMID: 21940667 DOI: 10.1152/ajpcell.00249.2011] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ion channels contribute to virtually all basic cellular processes, including such crucial ones for maintaining tissue homeostasis as proliferation, differentiation, and apoptosis. The involvement of ion channels in regulation of programmed cell death, or apoptosis, has been known for at least three decades based on observation that classical blockers of ion channels can influence cell death rates, prolonging or shortening cell survival. Identification of the central role of these channels in regulation of cell cycle and apoptosis as well as the recent discovery that the expression of ion channels is not limited solely to the plasma membrane, but may also include membranes of internal compartments, has led researchers to appreciate the pivotal role of ion channels plays in development of cancer. This review focuses on the aspects of programmed cell death influenced by various ion channels and how dysfunctions and misregulations of these channels may affect the development and progression of different cancers.
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Affiliation(s)
- V'yacheslav Lehen'kyi
- Laboratory of Cell Physiology, INSERM U1003, Cité Scientifique, Villeneuve d'Ascq, France
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33
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Liu H, Hughes JD, Rollins S, Chen B, Perkins E. Calcium entry via ORAI1 regulates glioblastoma cell proliferation and apoptosis. Exp Mol Pathol 2011; 91:753-60. [PMID: 21945734 DOI: 10.1016/j.yexmp.2011.09.005] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2011] [Accepted: 09/02/2011] [Indexed: 01/30/2023]
Abstract
INTRODUCTION Calcium entry plays a critical role in the proliferation and survival of certain tumors. Ca(2+) release activated Ca(2+) (CRAC) channels constitute one of the most important pathways for calcium entry especially that of store-operated calcium entry (SOCE). ORAI1 and stromal interaction molecule1 (STIM1) are essential protein components of CRAC channels. In this study we tested the effect of inhibiting CRAC through ORAI1 and STIM1 on glioblastoma multiforme (GBM) tumor cell proliferation and survival. METHODS Two glioblastoma cell lines, C6 (rat) and U251 (human), were used in the study. ORAI1 and STIM1 expressions were examined using Western blot and immunohistochemistry. CRAC channel activity and its components were inhibited with ion channel blockers and using siRNA knockdown. Changes in intracellular calcium concentration were recorded using Fura-2 fluorescent calcium imaging. Cell proliferation and apoptosis were examined using MTS and TUNEL assays, respectively. RESULTS CRAC blockers, such as SKF-96365 (1-[2-(4-methoxyphenyl)-2-[3-(4-methoxyphenyl) propoxy]ethyl-1H-imidazole), 2-aminoethoxydiphenyl borate (2-APB) and Diethylstilbestrol (DES), inhibited cell proliferations and SOCE in GBM cells. Knockdown of ORAI1 and STIM1 proteins using siRNA significantly inhibited C6 cell proliferation and SOCE compared with those in control cells, and a more significant effect was observed in cells with ORAI1 siRNA knockdown than that of STIM1-treated cells. Both CRAC blockers and siRNA treatments increased apoptosis in C-6 cells compared with control. CONCLUSION Calcium entry via ORAI1 and CRAC channels are important for GBM proliferation and survival.
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Affiliation(s)
- Huiling Liu
- Department of Neurosurgery, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA.
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34
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Jia X, Li X, Xu Y, Zhang S, Mou W, Liu Y, Liu Y, Lv D, Liu CH, Tan X, Xiang R, Li N. SOX2 promotes tumorigenesis and increases the anti-apoptotic property of human prostate cancer cell. J Mol Cell Biol 2011; 3:230-8. [PMID: 21415100 DOI: 10.1093/jmcb/mjr002] [Citation(s) in RCA: 148] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
SRY-related HMG-box gene 2 (SOX2) is one of the key regulatory genes that maintain the pluripotency and self-renewal properties in embryonic stem cells. Here we used immunohistochemistry to analyze the expression of SOX2 in human prostate tissues and found it contributed to tumorigenesis and correlated with histologic grade and Gleason score. We further investigated SOX2's function in cell growth and apoptosis process by using a human prostate cancer cell line DU145 with SOX2 overexpression or down-regulation. Cell cycle assay revealed that SOX2 promoted cell growth and increased the percentage of cells in S phase. In vitro and in vivo xenograft experiments in NOD/SCID mice further demonstrated that SOX2 increased the apoptosis-resistant properties of DU145 cells with decreased function of store-operated Ca(2+) entry and reduced expression of Orai1 at both mRNA and protein levels, suggesting a potential mechanism that contributes to the anti-apoptotic property of SOX2. To our knowledge, this study is the first to investigate SOX2's function in tumorigenesis and apoptosis of human prostate cancer and to elucidate its regulatory effect on the activity of store-operated Ca(2+) channels. Our results support the concept that SOX2 has the potential to be a significant marker to evaluate the progression of prostate cancer and serve as a potentially useful target for prostate cancer therapy.
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Affiliation(s)
- Xianpei Jia
- Medical School of Nankai University, Tianjin, China
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35
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Dupont G, Combettes L, Bird GS, Putney JW. Calcium oscillations. Cold Spring Harb Perspect Biol 2011; 3:cshperspect.a004226. [PMID: 21421924 DOI: 10.1101/cshperspect.a004226] [Citation(s) in RCA: 187] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Calcium signaling results from a complex interplay between activation and inactivation of intracellular and extracellular calcium permeable channels. This complexity is obvious from the pattern of calcium signals observed with modest, physiological concentrations of calcium-mobilizing agonists, which typically present as sequential regenerative discharges of stored calcium, a process referred to as calcium oscillations. In this review, we discuss recent advances in understanding the underlying mechanism of calcium oscillations through the power of mathematical modeling. We also summarize recent findings on the role of calcium entry through store-operated channels in sustaining calcium oscillations and in the mechanism by which calcium oscillations couple to downstream effectors.
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Affiliation(s)
- Geneviève Dupont
- Unité de Chronobiologie Théorique, Université Libre de Bruxelles, Faculté des Sciences, Brussels, Belgium
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36
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Lehen'kyi V, Raphaël M, Oulidi A, Flourakis M, Khalimonchyk S, Kondratskyi A, Gordienko DV, Mauroy B, Bonnal JL, Skryma R, Prevarskaya N. TRPV6 determines the effect of vitamin D3 on prostate cancer cell growth. PLoS One 2011; 6:e16856. [PMID: 21347289 PMCID: PMC3037935 DOI: 10.1371/journal.pone.0016856] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Accepted: 01/16/2011] [Indexed: 01/27/2023] Open
Abstract
Despite remarkable advances in the therapy and prevention of prostate cancer it is still the second cause of death from cancer in industrialized countries. Many therapies initially shown to be beneficial for the patients were abandoned due to the high drug resistance and the evolution rate of the tumors. One of the prospective therapeutical agents even used in the first stage clinical trials, 1,25-dihydroxyvitamin D3, was shown to be either unpredictable or inefficient in many cases. We have already shown that TRPV6 calcium channel, which is the direct target of 1,25-dihydroxyvitamin D3 receptor, positively controls prostate cancer proliferation and apoptosis resistance (Lehen'kyi et al., Oncogene, 2007). However, how the known 1,25-dihydroxyvitamin D3 antiproliferative effects may be compatible with the upregulation of pro-oncogenic TRPV6 channel remains a mystery. Here we demonstrate that in low steroid conditions 1,25-dihydroxyvitamin D3 upregulates the expression of TRPV6, enchances the proliferation by increasing the number of cells entering into S-phase. We show that these pro-proliferative effects of 1,25-dihydroxyvitamin D3 are directly mediated via the overexpression of TRPV6 channel which increases calcium uptake into LNCaP cells. The apoptosis resistance of androgen-dependent LNCaP cells conferred by TRPV6 channel is drastically inversed when 1,25-dihydroxyvitamin D3 effects were combined with the successful TRPV6 knockdown. In addition, the use of androgen-deficient DU-145 and androgen-insensitive LNCaP C4-2 cell lines allowed to suggest that the ability of 1,25-dihydroxyvitamin D3 to induce the expression of TRPV6 channel is a crucial determinant of the success or failure of 1,25-dihydroxyvitamin D3-based therapies.
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Affiliation(s)
- V'yacheslav Lehen'kyi
- Inserm, U-1003, Equipe labellisée par la Ligue Nationale contre le cancer, Villeneuve d'Ascq, France
- Université des Sciences et Technologies de Lille (USTL), Villeneuve d'Ascq, France
| | - Maylis Raphaël
- Inserm, U-1003, Equipe labellisée par la Ligue Nationale contre le cancer, Villeneuve d'Ascq, France
- Université des Sciences et Technologies de Lille (USTL), Villeneuve d'Ascq, France
| | - Agathe Oulidi
- Inserm, U-1003, Equipe labellisée par la Ligue Nationale contre le cancer, Villeneuve d'Ascq, France
- Université des Sciences et Technologies de Lille (USTL), Villeneuve d'Ascq, France
| | - Matthieu Flourakis
- Inserm, U-1003, Equipe labellisée par la Ligue Nationale contre le cancer, Villeneuve d'Ascq, France
- Université des Sciences et Technologies de Lille (USTL), Villeneuve d'Ascq, France
| | - Sergii Khalimonchyk
- Inserm, U-1003, Equipe labellisée par la Ligue Nationale contre le cancer, Villeneuve d'Ascq, France
- Université des Sciences et Technologies de Lille (USTL), Villeneuve d'Ascq, France
| | - Artem Kondratskyi
- Inserm, U-1003, Equipe labellisée par la Ligue Nationale contre le cancer, Villeneuve d'Ascq, France
- Université des Sciences et Technologies de Lille (USTL), Villeneuve d'Ascq, France
| | - Dmitri V. Gordienko
- Division of Basic Medical Sciences, St. George's University of London, Cranmer Terrace, London, United Kingdom
| | - Brigitte Mauroy
- Université Catholique de Lille, Service d'Urologie, Lille, France
| | - Jean-Lois Bonnal
- Université Catholique de Lille, Service d'Urologie, Lille, France
| | - Roman Skryma
- Inserm, U-1003, Equipe labellisée par la Ligue Nationale contre le cancer, Villeneuve d'Ascq, France
- Université des Sciences et Technologies de Lille (USTL), Villeneuve d'Ascq, France
| | - Natalia Prevarskaya
- Inserm, U-1003, Equipe labellisée par la Ligue Nationale contre le cancer, Villeneuve d'Ascq, France
- Université des Sciences et Technologies de Lille (USTL), Villeneuve d'Ascq, France
- * E-mail:
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37
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Transient receptor proteins illuminated: Current views on TRPs and disease. Vet J 2011; 187:153-64. [DOI: 10.1016/j.tvjl.2010.01.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2009] [Revised: 01/21/2010] [Accepted: 01/25/2010] [Indexed: 11/23/2022]
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Dhennin-Duthille I, Gautier M, Faouzi M, Guilbert A, Brevet M, Vaudry D, Ahidouch A, Sevestre H, Ouadid-Ahidouch H. High Expression of Transient Receptor Potential Channels in Human Breast Cancer Epithelial Cells and Tissues: Correlation with Pathological Parameters. Cell Physiol Biochem 2011; 28:813-22. [DOI: 10.1159/000335795] [Citation(s) in RCA: 184] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/26/2011] [Indexed: 01/19/2023] Open
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Abstract
Ion channels and notably TRP channels play a crucial role in a variety of physiological functions and in addition these channels have been also shown associated with several diseases including cancer. The process of cancer initiation and progression involves the altered expression of one or more of TRP proteins, depending on the nature of the cancer. The most clearly described role in pathogenesis has been evidenced for TRPM8, TRPV6 and TRPM1 channels. The increased expression of some other channels, such as TRPV1, TRPC1, TRPC6, TRPM4, and TRPM5 has also been demonstrated in some cancers. Further investigations are required to precise the role of TRP channels in cancer development and/or progression and to specifically develop further knowledge of TRP proteins as discriminative markers and prospective targets for pharmaceutical intervention in treating cancer.
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40
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Pharmacological and functional properties of TRPM8 channels in prostate tumor cells. Pflugers Arch 2010; 461:99-114. [PMID: 21052713 DOI: 10.1007/s00424-010-0895-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Revised: 10/09/2010] [Accepted: 10/11/2010] [Indexed: 10/18/2022]
Abstract
Prostate cancer (PC) is a major health problem in adult males. TRPM8, a cationic TRP channel activated by cooling and menthol is upregulated in PC. However, the precise role of TRPM8 in PC is still unclear. Some studies hypothesized that TRPM8-mediated transmembrane Ca(2+) fluxes play a key role in cellular proliferation of PC cells. In contrast, other findings suggest that high TRPM8 levels may reduce the metastatic potential of PC cells. A detailed understanding of the response of TRPM8 channels to pharmacological modulators of their activity is relevant when considering potential therapies, targeting this ion channel to treat PC. We characterized the pharmacological and functional properties of native TRPM8 channels in four human prostate cell lines, PNT1A, LNCaP, DU145, and PC3, commonly used as experimental models of PC. PNT1A is a non-tumoral prostate cell line while the other three correspond to different stages of PC. Here, we show that cold- and agonist-evoked [Ca(2+)](i) responses in PC cells are much less sensitive to well-characterized agonists (menthol and icilin) and antagonists (BCTC, clotrimazole, and DD01050) of TRPM8 channels, compared to TRPM8 channels in other tissues, suggesting a different molecular composition and/or spatial organization. In addition, the forced overexpression of human TRPM8 facilitated the trafficking of TRPM8 channels residing in the endoplasmic reticulum to the plasma membrane, leading to a marked potentiation in the efficacy of the different blockers. These results predict that blockers of canonical TRPM8 channels may be less effective in halting proliferation of PC cells than expected.
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41
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Ion channels and the hallmarks of cancer. Trends Mol Med 2010; 16:107-21. [PMID: 20167536 DOI: 10.1016/j.molmed.2010.01.005] [Citation(s) in RCA: 307] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2009] [Revised: 01/13/2010] [Accepted: 01/13/2010] [Indexed: 01/19/2023]
Abstract
Plasma membrane (PM) ion channels contribute to virtually all basic cellular processes and are also involved in the malignant phenotype of cancer cells. Here, we review the role of ion channels in cancer in the context of their involvement in the defined hallmarks of cancer: 1) self-sufficiency in growth signals, 2) insensitivity to antigrowth signals, 3) evasion of programmed cell death (apoptosis), 4) limitless replicative potential, 5) sustained angiogenesis and 6) tissue invasion and metastasis. Recent studies have indicated that the contribution of specific ion channels to these hallmarks varies for different types of cancer. Therefore, to determine the importance of ion channels as targets for cancer diagnosis and treatment their expression, function and regulation must be assessed for each cancer.
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42
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Abstract
Store-operated Ca2+ entry (SOCE) is an important Ca2+ influx pathway in many non-excitable and some excitable cells. It is regulated by the filling state of intracellular Ca2+ stores, notably the endoplasmic reticulum (ER). Reduction in [Ca2+]ER results in activation of plasma membrane Ca2+ channels that mediate sustained Ca2+ influx which is required for many cell functions as well as refilling of Ca2+ stores. The Ca2+ release activated Ca2+ (CRAC) channel is the best characterized SOC channel with well-defined electrophysiological properties. In recent years, the molecular components of the CRAC channel, long mysterious, have been defined. ORAI1 (or CRACM1) acts as the pore-forming subunit of the CRAC channel in the plasma membrane. Stromal interaction molecule (STIM) 1 is localized in the ER, senses [Ca2+]ER, and activates the CRAC channel upon store depletion by binding to ORAI1. Both proteins are widely expressed in many tissues in both human and mouse consistent with the widespread prevalence of SOCE and CRAC channel currents in many cells types. CRAC channelopathies in human patients with mutations in STIM1 and ORAI1 are characterized by abolished CRAC channel currents, lack of SOCE and-clinically-immunodeficiency, congenital myopathy, and anhydrotic ectodermal dysplasia. This article reviews the role of ORAI and STIM proteins for SOCE and CRAC channel function in a variety of cell types and tissues and compares the phenotypes of ORAI1 and STIM1-deficient human patients and mice with targeted deletion of Orai and Stim genes.
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Affiliation(s)
- Stefan Feske
- Department of Pathology, New York University, Langone Medical Center, SRB314, New York, NY 10016, USA.
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43
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Thinnes FP. Neuroendocrine differentiation of LNCaP cells suggests: VDAC in the cell membrane is involved in the extrinsic apoptotic pathway. Mol Genet Metab 2009; 97:241-3. [PMID: 19487148 DOI: 10.1016/j.ymgme.2009.04.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2009] [Revised: 04/18/2009] [Accepted: 04/18/2009] [Indexed: 10/20/2022]
Abstract
The primary structure of native human type-1 voltage dependent anion-selective channel/porin was presented twenty years ago, so was first data on its extra-mitochondrial expression in cell membranes of lymphocytes. Then, the channel had already entered cancer research as the docking molecule for hexokinase at outer mitochondrial membrane. Cell membrane standing porin met the cancer field only four years ago, when it was reported that normal and cancerous prostate cells from a single patient differed in the expression level of the channel. Meanwhile studies on a role of VDAC in cell differentiation, apoptosis, cancer and even pharmacology increase, mostly focused on porin in the outer membrane of mitochondria, but sometimes also pointing to the channel in the plasmalemma, e.g. prostate cancer cells on their way to neuroendocrine-differentiation. The synopsis presented discusses some recent papers on this issue, and argues in favor of considering voltage dependent anion-selective channel-cored volume regulated anion channel complexes in studies focused on apoptosis and cancer, where the channel might be part of the extrinsic cell death pathway. In this context, heed should also be given to the interaction of extra-mitochondrial porin and estrogen receptors alpha in cell membrane caveolae. Finally, it is insinuated to search for natural antibodies against type-1 porin, what in combination with other established markers might help in early diagnosis of prostate cancer.
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Huang JK, Huang CC, Lu T, Chang HT, Lin KL, Tsai JY, Liao WC, Chien JM, Jan CR. Effect of MK-886 on Ca2+Level and Viability in PC3 Human Prostate Cancer Cells. Basic Clin Pharmacol Toxicol 2009; 104:441-7. [DOI: 10.1111/j.1742-7843.2009.00413.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sato C, Maruyama Y, Ogura T, Mio K, Kato K, Kaneko T, Kiyonaka S, Mori Y. Reply to Thinnes: Is There Competition in Trafficking of VDAC-cored VRAC and SOC in NE Differentiation of Cells? J Biol Chem 2009. [DOI: 10.1074/jbc.n900812200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Lazzeri M. TRP family proteins in the lower urinary tract: translating basic science into new clinical prospective. Ther Adv Urol 2009; 1:33-42. [PMID: 21789052 PMCID: PMC3126043 DOI: 10.1177/1756287209103922] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The lower urinary tract (LUT) is densely innervated by capsaicin-sensitive primary afferent neurons, a sub set of sensory nerves, in a number of species including humans. These fibers exhibit both a sensory (afferent) function, including the regulation of the micturition reflex and the perception of pain, and an 'efferent' function, involved in the detrusor smooth muscle contractility and plasma protein extravasation. The discovery of specific binding sites for capsaicin, the pungent ingredient of red chilli, initiated a rush that ended up with the cloning of the 'vanilloid receptor', which belongs to the TRP (transient receptor potential) family. Here we reviewed the knowledge about the presumable functions of TRP family proteins in the LUT as regulators of bladder reflex activity, pain perception and cell differentiation. This review will focus on experimental evidence and promising clinical applications of targeting these proteins for the treatment of detrusor overactivity and bladder pain syndrome. As TRP receptor ligands may promote cellular death, and inhibit the growth of normal and neoplastic cells, the translation of basic science evidence into new clinical prospective for bladder and prostate cancer will be shown.
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Affiliation(s)
- Massimo Lazzeri
- Department of Urology, Santa Chiara Hospital Piazza Indipendenza n° 11, 50129, Florence, Italy
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47
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Guo RW, Huang L. New insights into the activation mechanism of store-operated calcium channels: roles of STIM and Orai. J Zhejiang Univ Sci B 2009; 9:591-601. [PMID: 18763308 DOI: 10.1631/jzus.b0820042] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The activation of Ca2+ entry through store-operated channels by agonists that deplete Ca2+ from the endoplasmic reticulum (ER) is a ubiquitous signaling mechanism, the molecular basis of which has remained elusive for the past two decades. Store-operated Ca2+-release-activated Ca2+ (CRAC) channels constitute the sole pathway for Ca2+ entry following antigen-receptor engagement. In a set of breakthrough studies over the past two years, stromal interaction molecule 1 (STIM1, the ER Ca2+ sensor) and Orai1 (a pore-forming subunit of the CRAC channel) have been identified. Here we review these recent studies and the insights they provide into the mechanism of store-operated Ca2+ channels (SOCCs).
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Affiliation(s)
- Rui-wei Guo
- Department of Cardiovascular, Xinqiao Hospital, University of the Third Military Medical, Chongqing 400037, China.
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Li N, Lin P, Cai C, Pan Z, Weisleder N, Ma J. The amino-terminal peptide of Bax perturbs intracellular Ca2+ homeostasis to enhance apoptosis in prostate cancer cells. Am J Physiol Cell Physiol 2008; 296:C267-72. [PMID: 19091958 DOI: 10.1152/ajpcell.00390.2008] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
During apoptosis, proteolytic cleavage of Bax at the amino terminus generates a truncated Bax of approximately 18 kDa (p18Bax) and an amino-terminal peptide of approximately 3 kDa (p3Bax). Whereas extensive studies have shown that p18Bax behaves like a BH3 protein with enhanced pro-apoptotic function over that of the full-length Bax (p21Bax), little is known about the function of p3Bax in apoptosis. We have previously shown that Bax and Ca2+ play a synergistic role in amplifying apoptosis signaling and that store-operated Ca2+ entry (SOCE) contributes to Bax-mediated apoptosis in prostate cancer cells. Here we test whether p3Bax can contribute to regulation of Ca2+ signaling during apoptosis through use of a membrane-penetrating peptide to facilitate delivery of recombinant p3Bax into NRP-154 cells, a prostate epithelial cell line with tumorigenic capacity. We find that human immunodefficiency virus transactivator of transcription protein (TAT)-p3Bax fusion peptide can enhance thapsigargin-induced apoptosis in NRP-154 cells, elevate SOCE activity, and increase inositol 1,4,5-trisphosphate-sensitive intracellular Ca2+ stores. Our data indicates that p3Bax can modulate the entry of extracellular Ca2+ and thus regulate the amplification of apoptosis in prostate cancer cells.
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Affiliation(s)
- Na Li
- Dept. of Physiology and Biophysics, and Medicine, Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA
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Li N, Zheng L, Lin P, Danielpour D, Pan Z, Ma J. Overexpression of Bax induces down-regulation of store-operated calcium entry in prostate cancer cells. J Cell Physiol 2008; 216:172-9. [PMID: 18247359 DOI: 10.1002/jcp.21385] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Store-operated Ca2+ channels control homeostasis between extracellular Ca2+ reservoir and intracellular Ca2+ storage and play important roles in apoptosis in a wide variety of cells, including prostate epithelia. Recent studies have shown that the acquired apoptosis-resistant nature of androgen-independent prostate cancer is associated with reduced function of store-operated Ca2+ entry (SOCE). This study investigates the functional interaction between Bax and SOCE in the apoptosis signaling cascade in prostate cancer. Our previous findings show that NRP-154, an androgen-independent prostate cancer cell line, could sustain overexpression of exogenous Bax without undergoing apoptosis. Here we show that sustained overexpression of Bax in NRP-154 cells leads to down-regulation of SOCE and reduced Ca2+ storage inside the endoplasmic reticulum. While reduced SOCE may represent an adaptive mechanism for cell survival, increased levels of Bax in the latent state enhances the sensitivity of NRP-154 cells to TGF-beta and thapsigargin-induced apoptosis. This enhanced apoptosis can be reduced by 2-aminoethoxydiphenyl borate (2-APB), an inhibitor of SOCE, or reversed under conditions where SOCE is only partially activated. Our results demonstrate a functional interaction between Bax and SOCE in apoptosis of prostate cancer, and support the concept that improving this interaction has therapeutic implications for prostate cancer.
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Affiliation(s)
- Na Li
- Department of Physiology and Biophysics, University of Medicine & Dentistry of New Jersey-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854, USA
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50
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Barranco WT, Kim DH, Stella SL, Eckhert CD. Boric acid inhibits stored Ca2+ release in DU-145 prostate cancer cells. Cell Biol Toxicol 2008; 25:309-20. [PMID: 18516691 DOI: 10.1007/s10565-008-9085-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2008] [Accepted: 04/22/2008] [Indexed: 10/22/2022]
Abstract
Boron (B) is a developmental and reproductive toxin. It is also essential for some organisms. Plants use uptake and efflux transport proteins to maintain homeostasis, and in humans, boron has been reported to reduce prostate cancer. Ca2+ signaling is one of the primary mechanisms used by cells to respond to their environment. In this paper, we report that boric acid (BA) inhibits NAD+ and NADP+ as well as mechanically induced release of stored Ca2+ in growing DU-145 prostate cancer cells. Cell proliferation was inhibited by 30% at 100 microM, 60% at 250 microM, and 97% at 1,000 microM BA. NAD+-induced Ca2+ transients were partly inhibited at 250 microM BA and completely at 1,000 microM BA, whereas both NADP+ and mechanically induced transients were inhibited by 1,000 microM BA. Expression of CD38 protein increased in proportion to BA exposure (0-1,000 microM). In vitro mass spectrometry analysis showed that BA formed adducts with the CD38 products and Ca2+ channel agonists cyclic adenosine diphosphate ribose (cADPR) and nicotinic acid adenine dinucleotide phosphate (NAADP). Vesicles positive for the Ca2+ fluorophore fluo-3 acetoxymethyl ester accumulated in cells exposed to 250 and 1,000 microM BA. The BA analog, methylboronic acid (MBA; 250 and 1,000 microM), did not inhibit cell proliferation or NAD+, NADP+, or mechanically stimulated Ca2+ store release. Nor did MBA increase CD38 expression or cause the formation of intracellular vesicles. Thus, mammalian cells can distinguish between BA and its synthetic analog MBA and exhibit graded concentration-dependent responses. Based on these observations, we hypothesize that toxicity of BA stems from the ability of high concentrations to impair Ca2+ signaling.
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Affiliation(s)
- Wade T Barranco
- Department of Pulmonary Medicine, Baylor College of Medicine, One Baylor Plaza, Suite 520B, Houston, TX 77030, USA
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