1
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Pan-phylum genome-wide identification of sodium calcium exchangers reveal heterogeneous expansions and possible roles in nematode parasitism. Gene 2021; 810:146052. [PMID: 34756961 DOI: 10.1016/j.gene.2021.146052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 10/19/2021] [Accepted: 10/26/2021] [Indexed: 12/13/2022]
Abstract
Calcium signaling is ubiquitous in nematode development from fertilization to cell specification to apoptosis. Calcium also regulates dauer entry in Caenorhabditis elegans, which corresponds to the infective stage of parasitic nematodes. In diverse parasites such as Trypanosoma cruzi and Toxoplasma gondii calcium has been shown to regulate host cell entry and egress, and perturbing calcium signaling represents a possible route to inhibit infection and parasitism in these species. Sodium calcium exchangers are considered the most important mechanism of calcium efflux, and our lab has previously characterized the sodium calcium exchanger gene family in C. elegans and studied the diversity of this family across a subset of specific nematode species. Here we build upon these data and explore sodium calcium exchangers across 108 species of nematodes. Our data reveal substantial differences in sodium calcium exchanger counts across the Phylum and detail expansions and contractions of specific exchanger subtypes within certain nematode clades. Finally, we also provide evidence for a role of sodium calcium exchangers in parasite activation by examining differentially expressed genes in non-activated versus activated infective stage larvae. Taken together our findings paint a heterogeneous picture of sodium calcium exchanger evolution across the Phylum Nematoda that may reflect unique adaptations to free-living and parasitic lifestyles.
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2
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Xie H, Xiao X, Yi Y, Deng M, Li P, Jian D, Deng Z, Li J. A Negative Feedback Loop in Ultraviolet A-Induced Senescence in Human Dermal Fibroblasts Formed by SPCA1 and MAPK. Front Cell Dev Biol 2021; 8:597993. [PMID: 34239867 PMCID: PMC8259626 DOI: 10.3389/fcell.2020.597993] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 12/30/2020] [Indexed: 12/14/2022] Open
Abstract
Secretory pathway calcium ATPase 1 (SPCA1) is a calcium pump localized specifically to the Golgi. Its effects on UVA-induced senescence have never been examined. In our study, expression of SPCA1 was increased in UVA-irradiated human dermal fibroblasts (HDFs) by activating mitogen-activated protein kinase (MAPK) and its downstream transcription factor, c-jun. Dual-luciferase reporter and chromatin immunoprecipitation assays revealed that c-jun regulated SPCA1 by binding to its promoter. Furthermore, downregulating SPCA1 with siRNA transfection aggravated UVA-induced senescence due to an elevation of intracellular calcium concentrations and a subsequent increase in reactive oxygen species (ROS) and MAPK activity. In contrast, overexpression of SPCA1 reduced calcium overload, consequently lowering the ROS level and suppressing MAPK activation. This alleviated the cellular senescence caused by UVA irradiation. These results indicated that SPCA1 might exert a protective effect on UVA-induced senescence in HDFs via forming a negative feedback loop. Specifically, activation of MAPK/c-jun triggered by UVA transcriptionally upregulated SPCA1. In turn, the increased SPCA1 lowered the intracellular Ca2+ level, probably through pumping Ca2+ into the Golgi, leading to a reduction of ROS, eventually decreasing MAPK activity and diminishing UVA-induced senescence.
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Affiliation(s)
- Hongfu Xie
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Xiao Xiao
- Department of Dermatology, Hunan Provincial People's Hospital, Changsha, China
| | - Yuxin Yi
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Mingxing Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Peihui Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Dan Jian
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Zhili Deng
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Ji Li
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China.,Center for Molecular Medicine, Xiangya Hospital, Central South University, Changsha, China.,Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Changsha, China.,Science and Technology Aid Program, Xinjiang Uygur Autonomous Region, Urumqi, China.,Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Changsha, China
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3
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Leng S, Xie F, Liu J, Shen J, Quan G, Wen T. LLGL2 Increases Ca 2+ Influx and Exerts Oncogenic Activities via PI3K/AKT Signaling Pathway in Hepatocellular Carcinoma. Front Oncol 2021; 11:683629. [PMID: 34178676 PMCID: PMC8223678 DOI: 10.3389/fonc.2021.683629] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 05/20/2021] [Indexed: 02/05/2023] Open
Abstract
Background Lethal giant larvae (Lgl), scaffolding proteins, regulate the epithelial cell apicobasal polarity in Drosophila. They play important roles in asymmetric cell division, cell migration, and progenitor cells self-renewal as tumor suppressors. One of Lgl mammalian homologues proteins, LLGL2 overexpression has been reported in ER+ breast cancer and promotes tumor proliferation through regulating leucine uptake. Nonetheless, the role of LLGL2 in hepatocellular carcinoma (HCC) is still unknown. Methods TCGA dataset mining, qRT-PCR, Western blot along with immunohistochemistry assays were employed to explore LLGL2 expression in human HCC samples and cell lines. Moreover, the clinical value of LLGL2 was investigated in 156 HCC patients. Furthermore, the role as well as the molecular mechanism of LLGL2 in the progression of HCC was explored through a series of in vitro and in vivo experiments. Results LLGL2 was up-regulated in HCC tissues, which was related with certain clinicopathological features including tumor number, vascular invasion as well as advanced stage. High expression of LLGL2 predicted poor prognosis after hepatectomy. LLGL2 promoted HCC cells proliferation, migration and invasion through PI3K/ATK signaling by promoting calcium ion influx. Conclusion Our study identified that LLGL2 is a tumor promoter in HCC for the first time, which could potentially be utilized as a new biomarker and a therapeutic target for HCC.
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Affiliation(s)
- Shusheng Leng
- Department of Liver Surgery and Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, China.,General Surgery Department, Affiliated Hospital/Clinical Medical College of Chengdu University, Chengdu, China
| | - Fei Xie
- Department of Hepatobiliary, Pancreatic and Splenic Surgery, The First People's Hospital of Neijiang City, Neijiang, China
| | - Junyi Liu
- Central Laboratory, Affiliated Hospital/Clinical Medical College of Chengdu University, Chengdu, China
| | - Junyi Shen
- Department of Liver Surgery and Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, China
| | - Guangqian Quan
- Department of Liver Surgery and Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, China
| | - Tianfu Wen
- Department of Liver Surgery and Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu, China
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4
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Thurman M, Sun H, Kubica S, Praitis V. The slo-1 BK potassium channel interacts genetically with pmr-1 secretory pathway calcium ATPase during C. elegans embryonic cell migration. MICROPUBLICATION BIOLOGY 2021; 2021. [PMID: 33474530 PMCID: PMC7812384 DOI: 10.17912/micropub.biology.000351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
| | - Haonan Sun
- Grinnell College, Grinnell IA, 50112 USA
| | - Sam Kubica
- Grinnell College, Grinnell IA, 50112 USA
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5
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Ismatullah H, Jabeen I, Saeed MT. Biological Regulatory Network (BRN) Analysis and Molecular Docking Simulations to Probe the Modulation of IP 3R Mediated Ca 2+ Signaling in Cancer. Genes (Basel) 2020; 12:34. [PMID: 33383780 PMCID: PMC7823498 DOI: 10.3390/genes12010034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/21/2020] [Accepted: 12/23/2020] [Indexed: 12/21/2022] Open
Abstract
Inositol trisphosphate receptor (IP3R) mediated Ca+2 signaling is essential in determining the cell fate by regulating numerous cellular processes, including cell division and cell death. Despite extensive studies about the characterization of IP3R in cancer, the underlying molecular mechanism initiating the cell proliferation and apoptosis remained enigmatic. Moreover, in cancer, the modulation of IP3R in downstream signaling pathways, which control oncogenesis and cancer progression, is not well characterized. Here, we constructed a biological regulatory network (BRN), and describe the remodeling of IP3R mediated Ca2+ signaling as a central key that controls the cellular processes in cancer. Moreover, we summarize how the inhibition of IP3R affects the deregulated cell proliferation and cell death in cancer cells and results in the initiation of pro-survival responses in resistance of cell death in normal cells. Further, we also investigated the role of stereo-specificity of IP3 molecule and its analogs in binding with the IP3 receptor. Molecular docking simulations showed that the hydroxyl group at R6 position along with the phosphate group at R5 position in 'R' conformation is more favorable for IP3 interactions. Additionally, Arg-266 and Arg-510 showed π-π and hydrogen bond interactions and Ser-278 forms hydrogen bond interactions with the IP3 binding site. Thus, they are identified as crucial for the binding of antagonists.
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Affiliation(s)
| | - Ishrat Jabeen
- Research Center for Modeling and Simulation (RCMS), National University of Sciences and Technology (NUST), Academic-I Building, H-12 Islamabad 44000, Pakistan; (H.I.); (M.T.S.)
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6
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Alvarez J, Alvarez-Illera P, García-Casas P, Fonteriz RI, Montero M. The Role of Ca 2+ Signaling in Aging and Neurodegeneration: Insights from Caenorhabditis elegans Models. Cells 2020; 9:cells9010204. [PMID: 31947609 PMCID: PMC7016793 DOI: 10.3390/cells9010204] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/08/2020] [Accepted: 01/10/2020] [Indexed: 02/06/2023] Open
Abstract
Ca2+ is a ubiquitous second messenger that plays an essential role in physiological processes such as muscle contraction, neuronal secretion, and cell proliferation or differentiation. There is ample evidence that the dysregulation of Ca2+ signaling is one of the key events in the development of neurodegenerative processes, an idea called the "calcium hypothesis" of neurodegeneration. Caenorhabditis elegans (C. elegans) is a very good model for the study of aging and neurodegeneration. In fact, many of the signaling pathways involved in longevity were first discovered in this nematode, and many models of neurodegenerative diseases have also been developed therein, either through mutations in the worm genome or by expressing human proteins involved in neurodegeneration (β-amyloid, α-synuclein, polyglutamine, or others) in defined worm tissues. The worm is completely transparent throughout its whole life, which makes it possible to carry out Ca2+ dynamics studies in vivo at any time, by expressing Ca2+ fluorescent probes in defined worm tissues, and even in specific organelles such as mitochondria. This review will summarize the evidence obtained using this model organism to understand the role of Ca2+ signaling in aging and neurodegeneration.
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7
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Schifano E, Ficociello G, Vespa S, Ghosh S, Cipollo JF, Talora C, Lotti LV, Mancini P, Uccelletti D. Pmr-1 gene affects susceptibility of Caenorhabditis elegans to Staphylococcus aureus infection through glycosylation and stress response pathways' alterations. Virulence 2019; 10:1013-1025. [PMID: 31771413 PMCID: PMC6930020 DOI: 10.1080/21505594.2019.1697118] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Calcium signaling can elicit different pathways involved in an extreme variety of biological processes. Calcium levels must be tightly regulated in a spatial and temporal manner in order to be efficiently and properly utilized in the host physiology. The Ca2+-ATPase, encoded by pmr-1 gene, was first identified in yeast and localized to the Golgi and it appears to be involved in calcium homeostasis. PMR-1 function is evolutionary conserved from yeast to human, where mutations in the orthologous gene ATP2C1 cause Hailey-Hailey disease. In this work, we used the Caenorhabditis elegans model system to gain insight into the downstream response elicited by the loss of pmr-1 gene. We found that pmr-1 knocked down animals not only showed defects in the oligosaccharide structure of glycoproteins at the cell surface but also were characterized by reduced susceptibility to bacterial infection. Although increased resistance to the infection might be related to lack of regular recognition of C. elegans surface glycoproteins by microbial agents, we provide genetic evidence that pmr-1 interfered nematodes mounted a stronger innate immune response to Gram-positive bacterial infection. Thus, our observations indicate pmr-1 as a candidate gene implicated in mediating the worm's innate immune response.
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Affiliation(s)
- Emily Schifano
- Department of Biology and Biotechnology "Charles Darwin", University of Rome, Rome, Italy
| | - Graziella Ficociello
- Department of Biology and Biotechnology "Charles Darwin", University of Rome, Rome, Italy
| | - Simone Vespa
- Department of Experimental Medicine, University of Rome, Rome, Italy
| | - Salil Ghosh
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, USA
| | - John F Cipollo
- Center for Biologics Evaluation and Research, Food and Drug Administration, Silver Spring, Maryland, USA
| | - Claudio Talora
- Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | | | - Patrizia Mancini
- Department of Experimental Medicine, University of Rome, Rome, Italy
| | - Daniela Uccelletti
- Department of Biology and Biotechnology "Charles Darwin", University of Rome, Rome, Italy
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8
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Xiao H, Huang X, Xu H, Chen X, Xiong W, Yang Z, Deng X, He Z, Deng H. A novel splice-site mutation in the ATP2C1 gene of a Chinese family with Hailey-Hailey disease. J Cell Biochem 2018; 120:3630-3636. [PMID: 30654607 DOI: 10.1002/jcb.27640] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 08/15/2018] [Indexed: 12/18/2022]
Abstract
Hailey-Hailey disease (HHD), also known as familial benign chronic pemphigus, is an autosomal dominant genodermatosis. It is characterized by erosions, blisters and erythematous plaques at sites of friction or intertriginous areas. The pathogenic gene of HHD has been revealed as the ATPase secretory pathway Ca2+ transporting 1 gene ( ATP2C1), which encodes the protein, secretory pathway Ca 2+/Mn 2+-ATPase 1 (SPCA1). ATP2C1 gene mutations are responsible for HHD by resulting in abnormal Ca 2+ homeostasis in the skin and giving rise to acantholysis, a characteristic pathology of HHD. In this study, a four-generation family containing three HHD sufferers was recruited. Direct sequencing of the ATP2C1 gene was performed in the proband and other available family members. Reverse-transcriptase polymerase chain reaction analysis was conducted to show the potential variant effect on ATP2C1 splicing. A novel heterozygous c.325-2A>G transition at the splice acceptor site of intron 4 in the ATP2C1 gene was identified, and it co-segregated with the disease in this family. The mutation resulted in exon 5 skipping and an in-frame deletion of 12 amino acids (p.Ala109_Gln120del) in SPCA1. This splice-site mutation may be responsible for HHD in this family. This study would further expand the mutation spectrum of the ATP2C1 gene and may be helpful in the genetic counseling and prenatal diagnosis of HHD.
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Affiliation(s)
- Heng Xiao
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Pathology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiangjun Huang
- Department of General Surgery, The First Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Hongbo Xu
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiang Chen
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wei Xiong
- Key Laboratory of Carcinogenesis of Ministry of Health and Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Cancer Research Institute, Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Zhijian Yang
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiong Deng
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Zhenghao He
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hao Deng
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.,Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
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9
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Mirzakhalili E, Epureanu BI, Gourgou E. A mathematical and computational model of the calcium dynamics in Caenorhabditis elegans ASH sensory neuron. PLoS One 2018; 13:e0201302. [PMID: 30048509 PMCID: PMC6062085 DOI: 10.1371/journal.pone.0201302] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 05/28/2018] [Indexed: 12/31/2022] Open
Abstract
We propose a mathematical and computational model that captures the stimulus-generated Ca2+ transients in the C. elegans ASH sensory neuron. The rationale is to develop a tool that will enable a cross-talk between modeling and experiments, using modeling results to guide targeted experimental efforts. The model is built based on biophysical events and molecular cascades known to unfold as part of neurons' Ca2+ homeostasis mechanism, as well as on Ca2+ signaling events. The state of ion channels is described by their probability of being activated or inactivated, and the remaining molecular states are based on biochemically defined kinetic equations or known biochemical motifs. We estimate the parameters of the model using experimental data of hyperosmotic stimulus-evoked Ca2+ transients detected with a FRET sensor in young and aged worms, unstressed and exposed to oxidative stress. We use a hybrid optimization method composed of a multi-objective genetic algorithm and nonlinear least-squares to estimate the model parameters. We first obtain the model parameters for young unstressed worms. Next, we use these values of the parameters as a starting point to identify the model parameters for stressed and aged worms. We show that the model, in combination with experimental data, corroborates literature results. In addition, we demonstrate that our model can be used to predict ASH response to complex combinations of stimulation pulses. The proposed model includes for the first time the ASH Ca2+ dynamics observed during both "on" and "off" responses. This mathematical and computational effort is the first to propose a dynamic model of the Ca2+ transients' mechanism in C. elegans neurons, based on biochemical pathways of the cell's Ca2+ homeostasis machinery. We believe that the proposed model can be used to further elucidate the Ca2+ dynamics of a key C. elegans neuron, to guide future experiments on C. elegans neurobiology, and to pave the way for the development of more mathematical models for neuronal Ca2+ dynamics.
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Affiliation(s)
- Ehsan Mirzakhalili
- Mechanical Engineering Department, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Bogdan I. Epureanu
- Mechanical Engineering Department, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Eleni Gourgou
- Mechanical Engineering Department, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Internal Medicine, Division of Geriatrics, Medical School, University of Michigan, Ann Arbor, Michigan, United States of America
- * E-mail:
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10
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Nikoletopoulou V, Tavernarakis N. The PMR1 pump in alpha-synuclein toxicity and neurodegeneration. Neurosci Lett 2018; 663:66-71. [DOI: 10.1016/j.neulet.2017.08.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 07/26/2017] [Accepted: 08/01/2017] [Indexed: 12/14/2022]
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11
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Deng H, Xiao H. The role of the ATP2C1 gene in Hailey-Hailey disease. Cell Mol Life Sci 2017; 74:3687-3696. [PMID: 28551824 PMCID: PMC11107712 DOI: 10.1007/s00018-017-2544-7] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Revised: 04/27/2017] [Accepted: 05/18/2017] [Indexed: 12/24/2022]
Abstract
Hailey-Hailey disease (HHD) is a rare autosomal dominant acantholytic dermatosis, characterized by a chronic course of repeated and exacerbated skin lesions in friction regions. The pathogenic gene of HHD was reported to be the ATPase calcium-transporting type 2C member 1 gene (ATP2C1) located on chromosome 3q21-q24. Its function is to maintain normal intracellular concentrations of Ca2+/Mn2+ by transporting Ca2+/Mn2+ into the Golgi apparatus. ATP2C1 gene mutations are reportedly responsible for abnormal cytosolic Ca2+/Mn2+ levels and the clinical manifestations of HHD. Environmental factors and genetic modifiers may also affect the clinical variability of HHD. This article aims to critically discuss the clinical and pathological features of HHD, differential diagnoses, and genetic and functional studies of the ATP2C1 gene in HHD. Further understanding the role of the ATP2C1 gene in the pathogenesis of HHD by genetic, molecular, and animal studies may contribute to a better clinical diagnosis and provide new strategies for the treatment and prevention of HHD.
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Affiliation(s)
- Hao Deng
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Tongzipo Road 138, Changsha, 410013, Hunan, People's Republic of China.
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, People's Republic of China.
| | - Heng Xiao
- Center for Experimental Medicine, The Third Xiangya Hospital, Central South University, Tongzipo Road 138, Changsha, 410013, Hunan, People's Republic of China
- Department of Pathology, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, People's Republic of China
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12
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Mound A, Vautrin-Glabik A, Foulon A, Botia B, Hague F, Parys JB, Ouadid-Ahidouch H, Rodat-Despoix L. Downregulation of type 3 inositol (1,4,5)-trisphosphate receptor decreases breast cancer cell migration through an oscillatory Ca 2+ signal. Oncotarget 2017; 8:72324-72341. [PMID: 29069790 PMCID: PMC5641133 DOI: 10.18632/oncotarget.20327] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Accepted: 08/04/2017] [Indexed: 01/02/2023] Open
Abstract
Breast cancer remains a research priority due to its invasive phenotype. Although the role of ion channels in cancer is now well established, the role of inositol (1,4,5)-trisphosphate (IP3) receptors (IP3Rs) remains enigmatic. If the three IP3Rs subtypes expression have been identified in various cancers, little is known about their physiological role. Here, we investigated the involvement of IP3R type 3 (IP3R3) in the migration processes of three human breast cancer cell lines showing different migration velocities: the low-migrating MCF-7 and the highly migrating and invasive MDA-MB-231 and MDA-MB-435S cell lines. We show that a higher IP3R3 expression level, but not IP3R1 nor IP3R2, is correlated to a stronger cell line migration capacity and a sustained calcium signal. Interestingly, silencing of IP3R3 highlights an oscillating calcium signaling profile and leads to a significant decrease of cell migration capacities of the three breast cancer cell lines. Conversely, stable overexpression of IP3R3 in MCF-7 cells significantly increases their migration capacities. This effect is completely reversed by IP3R3 silencing. In conclusion, we demonstrate that IP3R3 expression level increases the migration capacity of human breast cancer cells by changing the calcium signature.
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Affiliation(s)
- Abdallah Mound
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Alexia Vautrin-Glabik
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Arthur Foulon
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Béatrice Botia
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Frédéric Hague
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Jan B Parys
- Laboratory of Molecular and Cellular Signalling, Department of Cellular and Molecular Medicine, Campus Gasthuisberg O/N1- bus 802-K U Leuven, B-3000 Leuven, Belgium
| | - Halima Ouadid-Ahidouch
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
| | - Lise Rodat-Despoix
- Laboratory of Cellular and Molecular Physiology (EA-4667), "Ion Channels in Breast Cancer", SFR CAP-SANTE (FED-4231), University of Amiens, UFR Sciences, 80039 Amiens, France
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13
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Lloyd-Evans E. On the move, lysosomal CAX drives Ca2+ transport and motility. J Cell Biol 2016; 212:755-7. [PMID: 27022089 PMCID: PMC4810312 DOI: 10.1083/jcb.201603037] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 03/10/2016] [Indexed: 11/22/2022] Open
Abstract
Acidic Ca2+ stores are important sources of Ca2+ during cell signaling but little is known about how Ca2+ enters these stores. In this issue, Melchionda et al. (2016. J. Cell Biol.http://dx.doi.org/10.1083/jcb.201510019) identify a Ca2+/H+ exchanger (CAX) that is required for Ca2+ uptake and cell migration in vertebrates.
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Affiliation(s)
- Emyr Lloyd-Evans
- School of Biosciences, Cardiff University, Cardiff CF10 3AX, Wales, UK
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14
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Wu SY, Hou HS, Sun YS, Cheng JY, Lo KY. Correlation between cell migration and reactive oxygen species under electric field stimulation. BIOMICROFLUIDICS 2015; 9:054120. [PMID: 26487906 PMCID: PMC4600077 DOI: 10.1063/1.4932662] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Accepted: 09/28/2015] [Indexed: 05/04/2023]
Abstract
Cell migration is an essential process involved in the development and maintenance of multicellular organisms. Electric fields (EFs) are one of the many physical and chemical factors known to affect cell migration, a phenomenon termed electrotaxis or galvanotaxis. In this paper, a microfluidics chip was developed to study the migration of cells under different electrical and chemical stimuli. This chip is capable of providing four different strengths of EFs in combination with two different chemicals via one simple set of agar salt bridges and Ag/AgCl electrodes. NIH 3T3 fibroblasts were seeded inside this chip to study their migration and reactive oxygen species (ROS) production in response to different EF strengths and the presence of β-lapachone. We found that both the EF and β-lapachone level increased the cell migration rate and the production of ROS in an EF-strength-dependent manner. A strong linear correlation between the cell migration rate and the amount of intracellular ROS suggests that ROS are an intermediate product by which EF and β-lapachone enhance cell migration. Moreover, an anti-oxidant, α-tocopherol, was found to quench the production of ROS, resulting in a decrease in the migration rate.
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Affiliation(s)
- Shang-Ying Wu
- Department of Agricultural Chemistry, National Taiwan University , Taipei 10617, Taiwan
| | - Hsien-San Hou
- Research Center for Applied Sciences , Academia Sinica, Taipei 11529, Taiwan
| | - Yung-Shin Sun
- Department of Physics, Fu-Jen Catholic University , New Taipei City 24205, Taiwan
| | - Ji-Yen Cheng
- Research Center for Applied Sciences , Academia Sinica, Taipei 11529, Taiwan
| | - Kai-Yin Lo
- Department of Agricultural Chemistry, National Taiwan University , Taipei 10617, Taiwan
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15
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Glycosyl phosphatidylinositol anchor biosynthesis is essential for maintaining epithelial integrity during Caenorhabditis elegans embryogenesis. PLoS Genet 2015; 11:e1005082. [PMID: 25807459 PMCID: PMC4373761 DOI: 10.1371/journal.pgen.1005082] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 02/18/2015] [Indexed: 02/07/2023] Open
Abstract
Glycosylphosphatidylinositol (GPI) is a post-translational modification resulting in the attachment of modified proteins to the outer leaflet of the plasma membrane. Tissue culture experiments have shown GPI-anchored proteins (GPI-APs) to be targeted to the apical membrane of epithelial cells. However, the in vivo importance of this targeting has not been investigated since null mutations in GPI biosynthesis enzymes in mice result in very early embryonic lethality. Missense mutations in the human GPI biosynthesis enzyme pigv are associated with a multiple congenital malformation syndrome with a high frequency of Hirschsprung disease and renal anomalies. However, it is currently unknown how these phenotypes are linked to PIGV function. Here, we identify a temperature-sensitive hypomorphic allele of PIGV in Caenorhabditis elegans, pigv-1(qm34), enabling us to study the role of GPI-APs in development. At the restrictive temperature we found a 75% reduction in GPI-APs at the surface of embryonic cells. Consequently, ~80% of pigv-1(qm34) embryos arrested development during the elongation phase of morphogenesis, exhibiting internal cysts and/or surface ruptures. Closer examination of the defects revealed them all to be the result of breaches in epithelial tissues: cysts formed in the intestine and excretory canal, and ruptures occurred through epidermal cells, suggesting weakening of the epithelial membrane or membrane-cortex connection. Knockdown of piga-1, another GPI biosynthesis enzymes resulted in similar phenotypes. Importantly, fortifying the link between the apical membrane and actin cortex by overexpression of the ezrin/radixin/moesin ortholog ERM-1, significantly rescued cyst formation and ruptures in the pigv-1(qm34) mutant. In conclusion, we discovered GPI-APs play a critical role in maintaining the integrity of the epithelial tissues, allowing them to withstand the pressure and stresses of morphogenesis. Our findings may help to explain some of the phenotypes observed in human syndromes associated with pigv mutations. Cell surface proteins, such as receptors, either integrate into the plasma membrane through a transmembrane domain or are tethered to it by an accessory glycosylated phospholipid (GPI) anchor that is attached to them after they are made. The GPI-anchor biosynthesis pathway is highly conserved from yeast to humans and null mutations in any of the key enzymes are lethal at early developmental stages. Point mutations in several genes encoding for GPI-anchor biosynthesis enzymes have been linked to human disease. Specifically, mutations in PIGV are associated with multiple congenital malformations, including renal and anorectal malformation and mental retardation. It is currently not known how the mutations in PIGV lead to these diseases. Here we describe a point mutation in the PIGV ortholog of the nematode Caenorhabditis elegans, pigv-1, which is found to cause a high degree of embryonic lethality. We documented a substantial reduction in the level of GPI-anchors in the mutant. Importantly, following its development using 4D microscopy and employing tissue-specific rescue, we identified loss of epithelial integrity as the primary cause of developmental arrest. Our results highlight the importance of GPI-anchored proteins for epithelial integrity in vivo and suggest a possible etiology for human diseases associated with PIGV mutations.
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16
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Hu PJ. Whole genome sequencing and the transformation of C. elegans forward genetics. Methods 2014; 68:437-40. [PMID: 24874788 DOI: 10.1016/j.ymeth.2014.05.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Revised: 05/16/2014] [Accepted: 05/17/2014] [Indexed: 11/16/2022] Open
Abstract
Forward genetics has been an undeniably powerful approach in Caenorhabditis elegans and other model organisms. However, the trek from mutant isolation to identification of the causative molecular lesion can be time-consuming and fraught with obstacles. This has changed with the advent of whole genome sequencing (WGS). The widespread availability of high-throughput sequencing technology, coupled with the increasing affordability of WGS, has enabled the routine use of WGS in the analysis of forward genetic screens. The noteworthy development of one-step mapping/sequencing approaches has largely eliminated the bottleneck of conventional high-resolution mapping, greatly accelerating the journey from mutagenesis to gene discovery. By enabling the use of increasingly complex and diverse genetic backgrounds as substrates for mutagenesis, WGS is expanding the landscape of biological problems that can be interrogated using forward genetic approaches in C. elegans and other organisms.
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Affiliation(s)
- Patrick J Hu
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI 48109, United States; Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, United States; Institute of Gerontology, University of Michigan Medical School, Ann Arbor, MI 48109, United States.
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