101
|
Shah RR, Stonier PD. Repurposing old drugs in oncology: Opportunities with clinical and regulatory challenges ahead. J Clin Pharm Ther 2018; 44:6-22. [PMID: 30218625 DOI: 10.1111/jcpt.12759] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/08/2018] [Accepted: 08/19/2018] [Indexed: 12/11/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE In order to expedite the availability of drugs to treat cancers in a cost-effective manner, repurposing of old drugs for oncological indications is gathering momentum. Revolutionary advances in pharmacology and genomics have demonstrated many old drugs to have activity at novel antioncogenic pharmacological targets. We decided to investigate whether prospective studies support the promises of nonclinical and retrospective clinical studies on repurposing three old drugs, namely metformin, valproate and astemizole. METHODS We conducted an extensive literature search through PubMed to gather representative nonclinical and retrospective clinical studies that investigated the potential repurposing of these three drugs for oncological indications. We then searched for prospective studies aimed at confirming the promises of retrospective data. RESULTS AND DISCUSSION While evidence from nonclinical and retrospective clinical studies with these drugs appears highly promising, large scale prospective studies are either lacking or have failed to substantiate this promise. We provide a brief discussion of some of the challenges in repurposing. Principal challenges and obstacles relate to heterogeneity of cancers studied without considering their molecular signatures, trials with small sample size and short duration, failure consider issues of ethnicity of study population and effective antioncogenic doses of the drug studied. WHAT IS NEW AND CONCLUSION Well-designed prospective studies demonstrating efficacy are required for repurposing old drugs for oncology indications, just as they are for new chemical entities for any indication. Early and ongoing interactions with regulatory authorities are invaluable. We outline a tentative framework for a structured approach to repurposing old drugs for novel indications in oncology.
Collapse
Affiliation(s)
- Rashmi R Shah
- Pharmaceutical Consultant, Gerrards Cross, Buckinghamshire, UK
| | - Peter D Stonier
- Department of Pharmaceutical Medicine, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences and Medicine, King's College, London, UK
| |
Collapse
|
102
|
Shorthouse D, Riedel A, Kerr E, Pedro L, Bihary D, Samarajiwa S, Martins CP, Shields J, Hall BA. Exploring the role of stromal osmoregulation in cancer and disease using executable modelling. Nat Commun 2018; 9:3011. [PMID: 30069015 PMCID: PMC6070494 DOI: 10.1038/s41467-018-05414-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 06/29/2018] [Indexed: 02/07/2023] Open
Abstract
Osmotic regulation is a vital homoeostatic process in all cells and tissues. Cells initially respond to osmotic stresses by activating transmembrane transport proteins to move osmotically active ions. Disruption of ion and water transport is frequently observed in cellular transformations such as cancer. We report that genes involved in membrane transport are significantly deregulated in many cancers, and that their expression can distinguish cancer cells from normal cells with a high degree of accuracy. We present an executable model of osmotic regulation and membrane transport in mammalian cells, providing a mechanistic explanation for phenotype change in varied disease states, and accurately predicting behaviour from single cell expression data. We also predict key proteins involved in cellular transformation, SLC4A3 (AE3), and SLC9A1 (NHE1). Furthermore, we predict and verify a synergistic drug combination in vitro, of sodium and chloride channel inhibitors, which target the osmoregulatory network to reduce cancer-associated phenotypes in fibroblasts.
Collapse
Affiliation(s)
- David Shorthouse
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Box 197, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK
| | - Angela Riedel
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Box 197, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK
| | - Emma Kerr
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Box 197, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK
| | - Luisa Pedro
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Box 197, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK
| | - Dóra Bihary
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Box 197, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK
| | - Shamith Samarajiwa
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Box 197, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK
| | - Carla P Martins
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Box 197, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK
| | - Jacqueline Shields
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Box 197, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK.
| | - Benjamin A Hall
- MRC Cancer Unit, University of Cambridge, Hutchison/MRC Research Centre, Box 197, Cambridge Biomedical Campus, Cambridge, CB2 0XZ, UK.
| |
Collapse
|
103
|
Cheng Q, Chen A, Du Q, Liao Q, Shuai Z, Chen C, Yang X, Hu Y, Zhao J, Liu S, Wen GR, An J, Jing H, Tuo B, Xie R, Xu J. Novel insights into ion channels in cancer stem cells (Review). Int J Oncol 2018; 53:1435-1441. [PMID: 30066845 DOI: 10.3892/ijo.2018.4500] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 06/28/2018] [Indexed: 11/06/2022] Open
Abstract
Cancer stem cells (CSCs) are immortal cells in tumor tissues that have been proposed as the driving force of tumorigenesis and tumor invasion. Previously, ion channels were revealed to contribute to cancer cell proliferation, migration and apoptosis. Recent studies have demonstrated that ion channels are present in various CSCs; however, the functions of ion channels and their mechanisms in CSCs remain unknown. The present review aimed to focus on the roles of ion channels in the regulation of CSC behavior and the CSC-like properties of cancer cells. Evaluation of the relationship between ion channels and CSCs is critically important for understanding malignancy.
Collapse
Affiliation(s)
- Qijiao Cheng
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Anhai Chen
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Qian Du
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Qiushi Liao
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Zhangli Shuai
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Changmei Chen
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Xinrong Yang
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Yaxia Hu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Ju Zhao
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Songpo Liu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Guo Rong Wen
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Jiaxin An
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Hai Jing
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Biguang Tuo
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Rui Xie
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| | - Jingyu Xu
- Department of Gastroenterology, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563003, P.R. China
| |
Collapse
|
104
|
Calabrò E, Magazù S. Resonant interaction between electromagnetic fields and proteins: A possible starting point for the treatment of cancer. Electromagn Biol Med 2018; 37:155-168. [DOI: 10.1080/15368378.2018.1499031] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Emanuele Calabrò
- Department of Mathematical and Informatics Sciences, Physical Sciences and Earth Sciences of Messina University, Messina, Italy
- CISFA - Interuniversity Consortium of Applied Physical Sciences (Consorzio Interuniversitario di Scienze Fisiche Applicate), Messina, Italy
| | - Salvatore Magazù
- Department of Mathematical and Informatics Sciences, Physical Sciences and Earth Sciences of Messina University, Messina, Italy
- Le Studium, Loire Valley Institute for Advanced Studies, Orléans & Tours, Orléans, France
- Centre de Biophysique Moleculaire (CBM), rue Charles Sadron, Laboratoire Interfaces, Confinement, Matériaux et Nanostructures (ICMN) – UMR 7374 CNRS, Université d’Orléans, Orleans, France
- Istituto Nazionale di Alta Matematica “F. Severi” – INDAM – Gruppo Nazionale per la Fisica Matematica – GNFM, Rome, Italy
| |
Collapse
|
105
|
Yang XJ, Zhang K, Xu JJ, Chen HY. In Situ Visualization of hERG Potassium Channel via Dual Signal Amplification. Anal Chem 2018; 90:6199-6205. [DOI: 10.1021/acs.analchem.8b00725] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xue-Jiao Yang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Kai Zhang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| |
Collapse
|
106
|
Involvement of AMP-activated Protein Kinase (AMPK) in Regulation of Cell Membrane Potential in a Gastric Cancer Cell Line. Sci Rep 2018; 8:6028. [PMID: 29662080 PMCID: PMC5902619 DOI: 10.1038/s41598-018-24460-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 03/12/2018] [Indexed: 12/26/2022] Open
Abstract
Membrane potential (Vmem) is a key bioelectric property of non-excitable cells that plays important roles in regulating cell proliferation. However, the regulation of Vmem itself remains largely unexplored. We found that, under nutrient starvation, during which cell division is inhibited, MKN45 gastric cancer cells were in a hyperpolarized state associated with a high intracellular chloride concentration. AMP-activated protein kinase (AMPK) activity increased, and expression of cystic fibrosis transmembrane conductance regulator (CFTR) decreased, in nutrient-starved cells. Furthermore, the increase in intracellular chloride concentration level and Vmem hyperpolarization in nutrient-starved cells was suppressed by inhibition of AMPK activity. Intracellular chloride concentrations and hyperpolarization increased after over-activation of AMPK using the specific activator AICAR or suppression of CFTR activity using specific inhibitor GlyH-101. Under these conditions, proliferation of MKN45 cells was inhibited. These results reveal that AMPK controls the dynamic change in Vmem by regulating CFTR and influencing the intracellular chloride concentration, which in turn influences cell-cycle progression. These findings offer new insights into the mechanisms underlying cell-cycle arrest regulated by AMPK and CFTR.
Collapse
|
107
|
McLaughlin KA, Levin M. Bioelectric signaling in regeneration: Mechanisms of ionic controls of growth and form. Dev Biol 2018; 433:177-189. [PMID: 29291972 PMCID: PMC5753428 DOI: 10.1016/j.ydbio.2017.08.032] [Citation(s) in RCA: 132] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/23/2017] [Accepted: 08/28/2017] [Indexed: 12/11/2022]
Abstract
The ability to control pattern formation is critical for the both the embryonic development of complex structures as well as for the regeneration/repair of damaged or missing tissues and organs. In addition to chemical gradients and gene regulatory networks, endogenous ion flows are key regulators of cell behavior. Not only do bioelectric cues provide information needed for the initial development of structures, they also enable the robust restoration of normal pattern after injury. In order to expand our basic understanding of morphogenetic processes responsible for the repair of complex anatomy, we need to identify the roles of endogenous voltage gradients, ion flows, and electric fields. In complement to the current focus on molecular genetics, decoding the information transduced by bioelectric cues enhances our knowledge of the dynamic control of growth and pattern formation. Recent advances in science and technology place us in an exciting time to elucidate the interplay between molecular-genetic inputs and important biophysical cues that direct the creation of tissues and organs. Moving forward, these new insights enable additional approaches to direct cell behavior and may result in profound advances in augmentation of regenerative capacity.
Collapse
Affiliation(s)
- Kelly A McLaughlin
- Allen Discovery Center, Department of Biology, Tufts University, 200 Boston Ave., Suite 4700, Medford, MA 02155, United States.
| | - Michael Levin
- Allen Discovery Center, Department of Biology, Tufts University, 200 Boston Ave., Suite 4700, Medford, MA 02155, United States
| |
Collapse
|
108
|
Perez-Neut M, Haar L, Rao V, Santha S, Lansu K, Rana B, Jones WK, Gentile S. Activation of hERG3 channel stimulates autophagy and promotes cellular senescence in melanoma. Oncotarget 2017; 7:21991-2004. [PMID: 26942884 PMCID: PMC5008339 DOI: 10.18632/oncotarget.7831] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 02/15/2016] [Indexed: 01/07/2023] Open
Abstract
Ion channels play a major factor in maintaining cellular homeostasis but very little is known about the role of these proteins in cancer biology. In this work we have discovered that, the Kv11.3 (hERG3) a plasma-membrane potassium channel plays a critical role in the regulation of autophagy in a cancer cell model. We have found that pharmacologic stimulation of the Kv11.3 channel with a small molecule activator, NS1643 induced autophagy via activation of an AMPK-dependent signaling pathway in melanoma cell line. In addition, we have found that NS1643 produced a strong inhibition of cell proliferation by activating a cellular senescence program. Furthermore, inhibition of autophagy via siRNA targeting AMPK or treatment with hydroxychloroquine an autophagy inhibitor activates apoptosis in NS1643-treated cells. Thus, we propose that, Kv11.3 is a novel mediator of autophagy, autophagy can be a survival mechanism contributing to cellular senescence, and that use of a combinatorial pharmacologic approach of Kv11.3 activator with inhibitors of autophagy represents a novel therapeutic approach against melanoma.
Collapse
Affiliation(s)
- Mathew Perez-Neut
- Department of Molecular Pharmacology & Therapeutics, Loyola University, Chicago, IL-60153, USA
| | - Lauren Haar
- Department of Molecular Pharmacology & Therapeutics, Loyola University, Chicago, IL-60153, USA
| | - Vidhya Rao
- Department of Molecular Pharmacology & Therapeutics, Loyola University, Chicago, IL-60153, USA
| | - Sreevidya Santha
- Department of Molecular Pharmacology & Therapeutics, Loyola University, Chicago, IL-60153, USA
| | - Katherine Lansu
- Department of Molecular Pharmacology & Therapeutics, Loyola University, Chicago, IL-60153, USA
| | - Basabi Rana
- Department of Molecular Pharmacology & Therapeutics, Loyola University, Chicago, IL-60153, USA
| | - Walter K Jones
- Department of Molecular Pharmacology & Therapeutics, Loyola University, Chicago, IL-60153, USA
| | - Saverio Gentile
- Department of Molecular Pharmacology & Therapeutics, Loyola University, Chicago, IL-60153, USA
| |
Collapse
|
109
|
Fukushiro-Lopes DF, Hegel AD, Rao V, Wyatt D, Baker A, Breuer EK, Osipo C, Zartman JJ, Burnette M, Kaja S, Kouzoukas D, Burris S, Jones WK, Gentile S. Preclinical study of a Kv11.1 potassium channel activator as antineoplastic approach for breast cancer. Oncotarget 2017; 9:3321-3337. [PMID: 29423049 PMCID: PMC5790466 DOI: 10.18632/oncotarget.22925] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 11/09/2017] [Indexed: 12/04/2022] Open
Abstract
Potassium ion (K+) channels have been recently found to play a critical role in cancer biology. Despite that pharmacologic manipulation of ion channels is recognized as an important therapeutic approach, very little is known about the effects of targeting of K+ channels in cancer. In this study, we demonstrate that use of the Kv11.1 K+ channel activator NS1643 inhibits tumor growth in an in vivo model of breast cancer. Tumors exposed to NS1643 had reduced levels of proliferation markers, high expression levels of senescence markers, increased production of ROS and DNA damage compared to tumors of untreated mice. Importantly, mice treated with NS1643 did not exhibit significant cardiac dysfunction. In conclusion, pharmacological stimulation of Kv11.1 activity produced arrested TNBC-derived tumor growth by generating DNA damage and senescence without significant side effects. We propose that use of Kv11.1 channels activators could be considered as a possible pharmacological strategy against breast tumors.
Collapse
Affiliation(s)
- Daniela F Fukushiro-Lopes
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - Alexandra D Hegel
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - Vidhya Rao
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA.,Research Service, Edward Hines Jr. VA Hospital, Hines, IL, USA
| | - Debra Wyatt
- Department of Pathology, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - Andrew Baker
- Department of Pathology, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - Eun-Kyoung Breuer
- Department of Pathology, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - Clodia Osipo
- Department of Pathology, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - Jeremiah J Zartman
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Miranda Burnette
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN, USA
| | - Simon Kaja
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA.,Department of Ophthalmology, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA.,Research Service, Edward Hines Jr. VA Hospital, Hines, IL, USA
| | - Dimitrios Kouzoukas
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - Sarah Burris
- Cardiovascular Research Institute, Loyola University Chicago, Maywood, IL, USA
| | - W Keith Jones
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| | - Saverio Gentile
- Department of Molecular Pharmacology and Therapeutics, Loyola University Chicago, Stritch School of Medicine, Maywood, IL, USA
| |
Collapse
|
110
|
Use of genetically encoded, light-gated ion translocators to control tumorigenesis. Oncotarget 2017; 7:19575-88. [PMID: 26988909 PMCID: PMC4991402 DOI: 10.18632/oncotarget.8036] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Accepted: 02/11/2016] [Indexed: 01/01/2023] Open
Abstract
It has long been known that the resting potential of tumor cells is depolarized relative to their normal counterparts. More recent work has provided evidence that resting potential is not just a readout of cell state: it regulates cell behavior as well. Thus, the ability to control resting potential in vivo would provide a powerful new tool for the study and treatment of tumors, a tool capable of revealing living-state physiological information impossible to obtain using molecular tools applied to isolated cell components. Here we describe the first use of optogenetics to manipulate ion-flux mediated regulation of membrane potential specifically to prevent and cause regression of oncogene-induced tumors. Injection of mutant-KRAS mRNA induces tumor-like structures with many documented similarities to tumors, in Xenopus tadpoles. We show that expression and activation of either ChR2D156A, a blue-light activated cation channel, or Arch, a green-light activated proton pump, both of which hyperpolarize cells, significantly lowers the incidence of KRAS tumor formation. Excitingly, we also demonstrate that activation of co-expressed light-activated ion translocators after tumor formation significantly increases the frequency with which the tumors regress in a process called normalization. These data demonstrate an optogenetic approach to dissect the biophysics of cancer. Moreover, they provide proof-of-principle for a novel class of interventions, directed at regulating cell state by targeting physiological regulators that can over-ride the presence of mutations.
Collapse
|
111
|
Ma R, Mahadevappa R, Kwok HF. Venom-based peptide therapy: insights into anti-cancer mechanism. Oncotarget 2017; 8:100908-100930. [PMID: 29246030 PMCID: PMC5725072 DOI: 10.18632/oncotarget.21740] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 09/22/2017] [Indexed: 01/17/2023] Open
Abstract
The 5-year relative survival rate of all types of cancer has increased significantly over the past three decades partly due to the targeted therapy. However, still there are many targeted therapy drugs could play a role only in a portion of cancer patients with specific molecular alternation. It is necessary to continue to develop new biological agents which could be used alone and/or in combination with current FDA approved drugs to treat complex cancer diseases. Venom-based drugs have been used for hundreds of years in human history. Nevertheless, the venom-origin of the anti-cancer drug do rarely appear in the pharmaceutical market; and this is due to the fact that the mechanism of action for a large number of the venom drug such as venom-based peptide is not clearly understood. In this review, we focus on discussing some identified venom-based peptides and their anti-cancer mechanisms including the blockade of cancer cell proliferation, invasion, angiogenesis, and metastasis (hallmarks of cancer) to fulfill the gap which is hindering their use in cancer therapy. Furthermore, it also highlights the importance of immunotherapy based on venom peptide. Overall, this review provides readers for further understanding the mechanism of venom peptide and elaborates on the need to explore peptide-based therapeutic strategies.
Collapse
Affiliation(s)
- Rui Ma
- Faculty of Health Sciences, University of Macau, Avenida de Universidade, Taipa, Macau SAR
| | - Ravikiran Mahadevappa
- Faculty of Health Sciences, University of Macau, Avenida de Universidade, Taipa, Macau SAR
| | - Hang Fai Kwok
- Faculty of Health Sciences, University of Macau, Avenida de Universidade, Taipa, Macau SAR
| |
Collapse
|
112
|
Burke RC, Bardet SM, Carr L, Romanenko S, Arnaud-Cormos D, Leveque P, O'Connor RP. Nanosecond pulsed electric fields depolarize transmembrane potential via voltage-gated K+, Ca2+ and TRPM8 channels in U87 glioblastoma cells. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:2040-2050. [DOI: 10.1016/j.bbamem.2017.07.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 07/05/2017] [Accepted: 07/05/2017] [Indexed: 12/20/2022]
|
113
|
Sun D, Liu Y, Zhang XS, Wu LY. NetGen: a novel network-based probabilistic generative model for gene set functional enrichment analysis. BMC SYSTEMS BIOLOGY 2017; 11:75. [PMID: 28950861 PMCID: PMC5615262 DOI: 10.1186/s12918-017-0456-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND High-throughput experimental techniques have been dramatically improved and widely applied in the past decades. However, biological interpretation of the high-throughput experimental results, such as differential expression gene sets derived from microarray or RNA-seq experiments, is still a challenging task. Gene Ontology (GO) is commonly used in the functional enrichment studies. The GO terms identified via current functional enrichment analysis tools often contain direct parent or descendant terms in the GO hierarchical structure. Highly redundant terms make users difficult to analyze the underlying biological processes. RESULTS In this paper, a novel network-based probabilistic generative model, NetGen, was proposed to perform the functional enrichment analysis. An additional protein-protein interaction (PPI) network was explicitly used to assist the identification of significantly enriched GO terms. NetGen achieved a superior performance than the existing methods in the simulation studies. The effectiveness of NetGen was explored further on four real datasets. Notably, several GO terms which were not directly linked with the active gene list for each disease were identified. These terms were closely related to the corresponding diseases when accessed to the curated literatures. NetGen has been implemented in the R package CopTea publicly available at GitHub ( http://github.com/wulingyun/CopTea/ ). CONCLUSION Our procedure leads to a more reasonable and interpretable result of the functional enrichment analysis. As a novel term combination-based functional enrichment analysis method, NetGen is complementary to current individual term-based methods, and can help to explore the underlying pathogenesis of complex diseases.
Collapse
Affiliation(s)
- Duanchen Sun
- Institute of Applied Mathematics, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, 100190, China.,National Center for Mathematics and Interdisciplinary Sciences, Chinese Academy of Sciences, Beijing, 100190, China.,School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yinliang Liu
- Institute of Applied Mathematics, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, 100190, China.,National Center for Mathematics and Interdisciplinary Sciences, Chinese Academy of Sciences, Beijing, 100190, China.,School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiang-Sun Zhang
- Institute of Applied Mathematics, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, 100190, China
| | - Ling-Yun Wu
- Institute of Applied Mathematics, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, 100190, China. .,National Center for Mathematics and Interdisciplinary Sciences, Chinese Academy of Sciences, Beijing, 100190, China. .,School of Mathematical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China.
| |
Collapse
|
114
|
Tweety-Homolog 1 Drives Brain Colonization of Gliomas. J Neurosci 2017; 37:6837-6850. [PMID: 28607172 DOI: 10.1523/jneurosci.3532-16.2017] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 03/16/2017] [Accepted: 04/19/2017] [Indexed: 01/25/2023] Open
Abstract
Early and progressive colonization of the healthy brain is one hallmark of diffuse gliomas, including glioblastomas. We recently discovered ultralong (>10 to hundreds of microns) membrane protrusions [tumor microtubes (TMs)] extended by glioma cells. TMs have been associated with the capacity of glioma cells to effectively invade the brain and proliferate. Moreover, TMs are also used by some tumor cells to interconnect to one large, resistant multicellular network. Here, we performed a correlative gene-expression microarray and in vivo imaging analysis, and identified novel molecular candidates for TM formation and function. Interestingly, these genes were previously linked to normal CNS development. One of the genes scoring highest in tests related to the outgrowth of TMs was tweety-homolog 1 (TTYH1), which was highly expressed in a fraction of TMs in mice and patients. Ttyh1 was confirmed to be a potent regulator of normal TM morphology and of TM-mediated tumor-cell invasion and proliferation. Glioma cells with one or two TMs were mainly responsible for effective brain colonization, and Ttyh1 downregulation particularly affected this cellular subtype, resulting in reduced tumor progression and prolonged survival of mice. The remaining Ttyh1-deficient tumor cells, however, had more interconnecting TMs, which were associated with increased radioresistance in those small tumors. These findings imply a cellular and molecular heterogeneity in gliomas regarding formation and function of distinct TM subtypes, with multiple parallels to neuronal development, and suggest that Ttyh1 might be a promising target to specifically reduce TM-associated brain colonization by glioma cells in patients.SIGNIFICANCE STATEMENT In this report, we identify tweety-homolog 1 (Ttyh1), a membrane protein linked to neuronal development, as a potent driver of tumor microtube (TM)-mediated brain colonization by glioma cells. Targeting of Ttyh1 effectively inhibited the formation of invasive TMs and glioma growth, but increased network formation by intercellular TMs, suggesting a functional and molecular heterogeneity of the recently discovered TMs with potential implications for future TM-targeting strategies.
Collapse
|
115
|
Fortunato A. The role of hERG1 ion channels in epithelial-mesenchymal transition and the capacity of riluzole to reduce cisplatin resistance in colorectal cancer cells. Cell Oncol (Dordr) 2017; 40:367-378. [DOI: 10.1007/s13402-017-0328-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2017] [Indexed: 01/08/2023] Open
|
116
|
Rhana P, Trivelato RR, Beirão PSL, Cruz JS, Rodrigues ALP. Is there a role for voltage-gated Na+ channels in the aggressiveness of breast cancer? ACTA ACUST UNITED AC 2017; 50:e6011. [PMID: 28591378 PMCID: PMC5463531 DOI: 10.1590/1414-431x20176011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/11/2017] [Indexed: 12/19/2022]
Abstract
Breast cancer is the most common cancer among women and its metastatic potential is responsible for numerous deaths. Thus, the need to find new targets for improving treatment, and even finding the cure, becomes increasingly greater. Ion channels are known to participate in several physiological functions, such as muscle contraction, cell volume regulation, immune response and cell proliferation. In breast cancer, different types of ion channels have been associated with tumorigenesis. Recently, voltage-gated Na+ channels (VGSC) have been implicated in the processes that lead to increased tumor aggressiveness. To explain this relationship, different theories, associated with pH changes, gene expression and intracellular Ca2+, have been proposed in an attempt to better understand the role of these ion channels in breast cancer. However, these theories are having difficulty being accepted because most of the findings are contrary to the present scientific knowledge. Several studies have shown that VGSC are related to different types of cancer, making them a promising pharmacological target against this debilitating disease. Molecular biology and cell electrophysiology have been used to look for new forms of treatment aiming to reduce aggressiveness and the disease progress.
Collapse
Affiliation(s)
- P Rhana
- Laboratório de Câncer de Mama, Canais Iônicos e AMP Cíclico, Faculdade de Ciências Humanas, Sociais e da Saúde, Universidade FUMEC, Belo Horizonte, MG, Brasil.,Laboratório de Membranas Excitáveis e de Biologia Cardiovascular, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - R R Trivelato
- Laboratório de Câncer de Mama, Canais Iônicos e AMP Cíclico, Faculdade de Ciências Humanas, Sociais e da Saúde, Universidade FUMEC, Belo Horizonte, MG, Brasil
| | - P S L Beirão
- Laboratório de Membranas Excitáveis e de Biologia Cardiovascular, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - J S Cruz
- Laboratório de Membranas Excitáveis e de Biologia Cardiovascular, Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brasil
| | - A L P Rodrigues
- Laboratório de Câncer de Mama, Canais Iônicos e AMP Cíclico, Faculdade de Ciências Humanas, Sociais e da Saúde, Universidade FUMEC, Belo Horizonte, MG, Brasil
| |
Collapse
|
117
|
Zhang Y, Cruickshanks N, Yuan F, Wang B, Pahuski M, Wulfkuhle J, Gallagher I, Koeppel AF, Hatef S, Papanicolas C, Lee J, Bar EE, Schiff D, Turner SD, Petricoin EF, Gray LS, Abounader R. Targetable T-type Calcium Channels Drive Glioblastoma. Cancer Res 2017; 77:3479-3490. [PMID: 28512247 DOI: 10.1158/0008-5472.can-16-2347] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Revised: 02/22/2017] [Accepted: 04/28/2017] [Indexed: 12/22/2022]
Abstract
Glioblastoma (GBM) stem-like cells (GSC) promote tumor initiation, progression, and therapeutic resistance. Here, we show how GSCs can be targeted by the FDA-approved drug mibefradil, which inhibits the T-type calcium channel Cav3.2. This calcium channel was highly expressed in human GBM specimens and enriched in GSCs. Analyses of the The Cancer Genome Atlas and REMBRANDT databases confirmed upregulation of Cav3.2 in a subset of tumors and showed that overexpression associated with worse prognosis. Mibefradil treatment or RNAi-mediated attenuation of Cav3.2 was sufficient to inhibit the growth, survival, and stemness of GSCs and also sensitized them to temozolomide chemotherapy. Proteomic and transcriptomic analyses revealed that Cav3.2 inhibition altered cancer signaling pathways and gene transcription. Cav3.2 inhibition suppressed GSC growth in part by inhibiting prosurvival AKT/mTOR pathways and stimulating proapoptotic survivin and BAX pathways. Furthermore, Cav3.2 inhibition decreased expression of oncogenes (PDGFA, PDGFB, and TGFB1) and increased expression of tumor suppressor genes (TNFRSF14 and HSD17B14). Oral administration of mibefradil inhibited growth of GSC-derived GBM murine xenografts, prolonged host survival, and sensitized tumors to temozolomide treatment. Our results offer a comprehensive characterization of Cav3.2 in GBM tumors and GSCs and provide a preclinical proof of concept for repurposing mibefradil as a mechanism-based treatment strategy for GBM. Cancer Res; 77(13); 3479-90. ©2017 AACR.
Collapse
Affiliation(s)
- Ying Zhang
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, Virginia
| | - Nichola Cruickshanks
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, Virginia
| | - Fang Yuan
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, Virginia
| | - Baomin Wang
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, Virginia
| | - Mary Pahuski
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, Virginia
| | - Julia Wulfkuhle
- George Mason University Center for Applied Proteomics and Molecular Medicine, Manassas, Virginia
| | - Isela Gallagher
- George Mason University Center for Applied Proteomics and Molecular Medicine, Manassas, Virginia
| | - Alexander F Koeppel
- Department of Public Health Sciences and Bioinformatics Core, Charlottesville, Virginia
| | - Sarah Hatef
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, Virginia
| | - Christopher Papanicolas
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, Virginia
| | - Jeongwu Lee
- Cleveland Clinic Lerner Research Institute, Cleveland, Ohio
| | - Eli E Bar
- Case Western Reserve University Neurological Surgery, Cleveland, Ohio
| | - David Schiff
- Department of Neurology, University of Virginia, Charlottesville, Virginia
| | - Stephen D Turner
- Department of Public Health Sciences and Bioinformatics Core, Charlottesville, Virginia
| | - Emanuel F Petricoin
- George Mason University Center for Applied Proteomics and Molecular Medicine, Manassas, Virginia
| | | | - Roger Abounader
- Department of Microbiology, Immunology & Cancer Biology, University of Virginia, Charlottesville, Virginia. .,Department of Neurology, University of Virginia, Charlottesville, Virginia.,Cancer Center, University of Virginia, Charlottesville, Virginia
| |
Collapse
|
118
|
Kulkarni S, Bill A, Godse NR, Khan NI, Kass JI, Steehler K, Kemp C, Davis K, Bertrand CA, Vyas AR, Holt DE, Grandis JR, Gaither LA, Duvvuri U. TMEM16A/ANO1 suppression improves response to antibody-mediated targeted therapy of EGFR and HER2/ERBB2. Genes Chromosomes Cancer 2017; 56:460-471. [PMID: 28177558 DOI: 10.1002/gcc.22450] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 02/02/2017] [Accepted: 02/03/2017] [Indexed: 12/22/2022] Open
Abstract
TMEM16A, a Ca2+ -activated Cl- channel, contributes to tumor growth in breast cancer and head and neck squamous cell carcinoma (HNSCC). Here, we investigated whether TMEM16A influences the response to EGFR/HER family-targeting biological therapies. Inhibition of TMEM16A Cl- channel activity in breast cancer cells with HER2 amplification induced a loss of viability. Cells resistant to trastuzumab, a monoclonal antibody targeting HER2, showed an increase in TMEM16A expression and heightened sensitivity to Cl- channel inhibition. Treatment of HNSCC cells with cetuximab, a monoclonal antibody targeting EGFR, and simultaneous TMEM16A suppression led to a pronounced loss of viability. Biochemical analyses of cells subjected to TMEM16A inhibitors or expressing chloride-deficient forms of TMEM16A provide further evidence that TMEM16A channel function may play a role in regulating EGFR/HER2 signaling. These data demonstrate that TMEM16A regulates EGFR and HER2 in growth and survival pathways. Furthermore, in the absence of TMEM16A cotargeting, tumor cells may acquire resistance to EGFR/HER inhibitors. Finally, targeting TMEM16A improves response to biological therapies targeting EGFR/HER family members.
Collapse
Affiliation(s)
- Sucheta Kulkarni
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.,Veterans Affairs Pittsburgh Health System, Pittsburgh, Pennsylvania
| | - Anke Bill
- Novartis Institute for Biomedical Research, Cambridge, MA, 02139
| | - Neal R Godse
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Nayel I Khan
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Jason I Kass
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Kevin Steehler
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Carolyn Kemp
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.,Veterans Affairs Pittsburgh Health System, Pittsburgh, Pennsylvania
| | - Kara Davis
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Carol A Bertrand
- Department of Cell Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Avani R Vyas
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Douglas E Holt
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Jennifer R Grandis
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - L Alex Gaither
- Novartis Institute for Biomedical Research, Cambridge, MA, 02139
| | - Umamaheswar Duvvuri
- Department of Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania.,Veterans Affairs Pittsburgh Health System, Pittsburgh, Pennsylvania
| |
Collapse
|
119
|
Pollak J, Rai KG, Funk CC, Arora S, Lee E, Zhu J, Price ND, Paddison PJ, Ramirez JM, Rostomily RC. Ion channel expression patterns in glioblastoma stem cells with functional and therapeutic implications for malignancy. PLoS One 2017; 12:e0172884. [PMID: 28264064 PMCID: PMC5338779 DOI: 10.1371/journal.pone.0172884] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 02/01/2017] [Indexed: 12/11/2022] Open
Abstract
Ion channels and transporters have increasingly recognized roles in cancer progression through the regulation of cell proliferation, migration, and death. Glioblastoma stem-like cells (GSCs) are a source of tumor formation and recurrence in glioblastoma multiforme, a highly aggressive brain cancer, suggesting that ion channel expression may be perturbed in this population. However, little is known about the expression and functional relevance of ion channels that may contribute to GSC malignancy. Using RNA sequencing, we assessed the enrichment of ion channels in GSC isolates and non-tumor neural cell types. We identified a unique set of GSC-enriched ion channels using differential expression analysis that is also associated with distinct gene mutation signatures. In support of potential clinical relevance, expression of selected GSC-enriched ion channels evaluated in human glioblastoma databases of The Cancer Genome Atlas and Ivy Glioblastoma Atlas Project correlated with patient survival times. Finally, genetic knockdown as well as pharmacological inhibition of individual or classes of GSC-enriched ion channels constrained growth of GSCs compared to normal neural stem cells. This first-in-kind global examination characterizes ion channels enriched in GSCs and explores their potential clinical relevance to glioblastoma molecular subtypes, gene mutations, survival outcomes, regional tumor expression, and experimental responses to loss-of-function. Together, the data support the potential biological and therapeutic impact of ion channels on GSC malignancy and provide strong rationale for further examination of their mechanistic and therapeutic importance.
Collapse
Affiliation(s)
- Julia Pollak
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, Washington, United States of America
| | - Karan G. Rai
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, Washington, United States of America
| | - Cory C. Funk
- Institute for Systems Biology, Seattle, Washington, United States of America
| | - Sonali Arora
- Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Eunjee Lee
- Department of Genetics and Genomic Sciences, Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Jun Zhu
- Department of Genetics and Genomic Sciences, Icahn Institute of Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
- Department of Hematology and Medical Oncology, The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, New York, United States of America
| | - Nathan D. Price
- Institute for Systems Biology, Seattle, Washington, United States of America
| | - Patrick J. Paddison
- Human Biology Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Jan-Marino Ramirez
- Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, Washington, United States of America
- Department of Neurosurgery, University of Washington, Seattle, Washington, United States of America
| | - Robert C. Rostomily
- Department of Neurosurgery, University of Washington, Seattle, Washington, United States of America
- Institute for Stem Cell and Regenerative Medicine, University of Washington, Seattle, Washington, United States of America
- Houston Methodist Research Institute, Houston, Texas, United States of America
- Department of Neurosurgery, Houston Methodist Hospital, Houston, Texas, United States of America
| |
Collapse
|
120
|
Durusu İZ, Hüsnügil HH, Ataş H, Biber A, Gerekçi S, Güleç EA, Özen C. Anti-cancer effect of clofazimine as a single agent and in combination with cisplatin on U266 multiple myeloma cell line. Leuk Res 2017; 55:33-40. [PMID: 28122281 DOI: 10.1016/j.leukres.2017.01.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 01/09/2017] [Indexed: 01/31/2023]
Abstract
Multiple Myeloma (MM) is a malignant neoplasm of bone marrow plasma B cells with high morbidity. Clofazimine (CLF) is an FDA-approved leprostatic, anti-tuberculosis, and anti-inflammatory drug that was previously shown to have growth suppression effect on various cancer types such as hepatocellular, lung, cervix, esophageal, colon, and breast cancer as well as melanoma, neuroblastoma, and leukemia. The objective of this study was to evaluate the anticancer effect and mechanism of CLF on U266 MM cell line. CLF (10μM, 24h) treatment resulted up to 72% growth suppression on a panel of hematological cell lines. Dose-response study conducted on U266 MM cell line revealed an IC50 value of 9.8±0.7μM. CLF also showed a synergistic inhibition effect in combination with cisplatin. In mechanistic assays, CLF treatment caused mitochondrial membrane depolarization, change in cell membrane asymmetry and increase in caspase-3 activity; indicating to an intrinsic apoptosis mechanism. This study provides new evidence for the anticancer effect of CLF on U266 cell line. Further in vivo and clinical studies are warranted to evaluate its therapeutic potential for MM treatment.
Collapse
Affiliation(s)
- İpek Z Durusu
- Middle East Technical University, Biotechnology Graduate Program, Üniversiteler Mahallesi Dumlupınar Bulvarı No:1, 06800 Çankaya Ankara, Turkey.
| | - Hazal H Hüsnügil
- Middle East Technical University, Biochemistry Graduate Program, Üniversiteler Mahallesi, Dumlupınar Bulvarı No:1, 06800 Çankaya Ankara, Turkey.
| | - Heval Ataş
- Middle East Technical University, Biotechnology Graduate Program, Üniversiteler Mahallesi Dumlupınar Bulvarı No:1, 06800 Çankaya Ankara, Turkey.
| | - Ayşenur Biber
- Middle East Technical University, Biotechnology Graduate Program, Üniversiteler Mahallesi Dumlupınar Bulvarı No:1, 06800 Çankaya Ankara, Turkey.
| | - Selin Gerekçi
- Middle East Technical University, Biochemistry Graduate Program, Üniversiteler Mahallesi, Dumlupınar Bulvarı No:1, 06800 Çankaya Ankara, Turkey.
| | - Ezgi A Güleç
- Middle East Technical University, Biochemistry Graduate Program, Üniversiteler Mahallesi, Dumlupınar Bulvarı No:1, 06800 Çankaya Ankara, Turkey.
| | - Can Özen
- Middle East Technical University, Biotechnology Department and Center of Excellence in Biomaterials and Tissue Engineering and Central Laboratory, Üniversiteler Mahallesi, Dumlupınar Bulvarı No:1, 06800 Çankaya Ankara, Turkey.
| |
Collapse
|
121
|
Gómez-Lagunas F, Carrillo E, Pardo LA, Stühmer W. Gating Modulation of the Tumor-Related Kv10.1 Channel by Mibefradil. J Cell Physiol 2017; 232:2019-2032. [DOI: 10.1002/jcp.25448] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 06/02/2016] [Indexed: 01/24/2023]
Affiliation(s)
- Froylán Gómez-Lagunas
- Department of Physiology, School of Medicine. National Autonomous University of Mexico, UNAM; Ciudad Universitaria; México City México DF
| | - Elisa Carrillo
- Department of Physiology, School of Medicine. National Autonomous University of Mexico, UNAM; Ciudad Universitaria; México City México DF
| | - Luis A. Pardo
- Max-Planck Institute for Experimental Medicine; Göttingen Germany
| | - Walter Stühmer
- Max-Planck Institute for Experimental Medicine; Göttingen Germany
| |
Collapse
|
122
|
Canella R, Martini M, Borriello R, Cavicchio C, Muresan XM, Benedusi M, Cervellati F, Valacchi G. Modulation of Chloride Currents in Human Lung Epithelial Cells Exposed to Exogenous Oxidative Stress. J Cell Physiol 2017; 232:1817-1825. [DOI: 10.1002/jcp.25705] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 11/22/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Rita Canella
- Department of Life Sciences and Biotechnology; University of Ferrara; Ferrara Italy
| | - Marta Martini
- Department of Life Sciences and Biotechnology; University of Ferrara; Ferrara Italy
| | - Roberta Borriello
- Department of Life Sciences and Biotechnology; University of Ferrara; Ferrara Italy
| | - Carlotta Cavicchio
- Department of Life Sciences and Biotechnology; University of Ferrara; Ferrara Italy
| | - Ximena M. Muresan
- Department of Life Sciences and Biotechnology; University of Ferrara; Ferrara Italy
| | - Mascia Benedusi
- Department of Life Sciences and Biotechnology; University of Ferrara; Ferrara Italy
| | - Franco Cervellati
- Department of Life Sciences and Biotechnology; University of Ferrara; Ferrara Italy
| | - Giuseppe Valacchi
- Department of Life Sciences and Biotechnology; University of Ferrara; Ferrara Italy
- Department of Animal Science; North Carolina State University; PHHI NC Research Campus; Kannapolis North Carolina
| |
Collapse
|
123
|
Liu C, Zhu LL, Xu SG, Ji HL, Li XM. ENaC/DEG in Tumor Development and Progression. J Cancer 2016; 7:1888-1891. [PMID: 27698929 PMCID: PMC5039373 DOI: 10.7150/jca.15693] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Accepted: 06/29/2016] [Indexed: 11/05/2022] Open
Abstract
The epithelial Na+ channel/degenerin (ENaC/DEG) superfamily, including the acid-sensing ion channels (ASICs), is characterized by a high degree of similarity in structure but highly diverse in physiological functions. These ion channels have been shown to be important in several physiological functions of normal epithelial cells, including salt homeostasis, fluid transportation and cell mobility. There is increasing evidence suggesting that ENaC/DEG channels are critically engaged in cancer cell biology, such as proliferation, migration, invasion and apoptosis, playing a role in tumor development and progression. In this review, we will discuss recent studies showing the role of ENaC and ASIC channels in epithelial cells and its relationship to the oncogenesis.
Collapse
Affiliation(s)
- Cui Liu
- School of Nursing, Xinxiang Medical University, Xinxiang 453003, Henan Province, P. R. China
| | - Li-Li Zhu
- School of Nursing, Xinxiang Medical University, Xinxiang 453003, Henan Province, P. R. China
| | - Si-Guang Xu
- Institute of Lung and Molecular Therapy, Xinxiang Medical University, Xinxiang 453003, Henan Province, P. R. China
| | - Hong-Long Ji
- Institute of Lung and Molecular Therapy, Xinxiang Medical University, Xinxiang 453003, Henan Province, P. R. China
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas, USA
- Texas Lung Injury Institute, University of Texas Health Science Center at Tyler, Tyler, Texas, USA
| | - Xiu-Min Li
- Center for Cancer Research, Xinxiang Medical University, Xinxiang 453003, Henan Province, P. R. China
- Department Gastroenterology, the Third Affiliated Hospital of Xinxiang Medical University, Henan Province, P. R. China
| |
Collapse
|
124
|
Ji C, Zhang Z, Chen L, Zhou K, Li D, Wang P, Huang S, Gong T, Cheng B. Endoplasmic reticulum stress-induced autophagy determines the susceptibility of melanoma cells to dabrafenib. DRUG DESIGN DEVELOPMENT AND THERAPY 2016; 10:2491-8. [PMID: 27536070 PMCID: PMC4977101 DOI: 10.2147/dddt.s112740] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Melanoma is one of the deadliest skin cancers and accounts for most skin-related deaths due to strong resistance to chemotherapy drugs. In the present study, we investigated the mechanisms of dabrafenib-induced drug resistance in human melanoma cell lines A375 and MEL624. Our studies support that both endoplasmic reticulum (ER) stress and autophagy were induced in the melanoma cells after the treatment with dabrafenib. In addition, ER stress-induced autophagy protects melanoma cells from the toxicity of dabrafenib. Moreover, inhibition of both ER stress and autophagy promote the sensitivity of melanoma cells to dabrafenib. Taken together, the data suggest that ER stress-induced autophagy determines the sensitivity of melanoma cells to dabrafenib. These results provide us with promising evidence that the inhibition of autophagy and ER stress could serve a therapeutic effect for the conventional dabrafenib chemotherapy.
Collapse
Affiliation(s)
- Chao Ji
- Department of Dermatology, the 1st Affiliated Hospital of Fujian Medical University; Fujian Institute of Dermatology and Venereology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Ziping Zhang
- Department of Dermatology, the 1st Affiliated Hospital of Fujian Medical University; Fujian Institute of Dermatology and Venereology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Lihong Chen
- Department of Dermatology, the 1st Affiliated Hospital of Fujian Medical University; Fujian Institute of Dermatology and Venereology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Kunli Zhou
- Department of Dermatology, the 1st Affiliated Hospital of Fujian Medical University; Fujian Institute of Dermatology and Venereology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Dongjun Li
- Department of Dermatology, the 1st Affiliated Hospital of Fujian Medical University; Fujian Institute of Dermatology and Venereology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Ping Wang
- Department of Dermatology, the 1st Affiliated Hospital of Fujian Medical University; Fujian Institute of Dermatology and Venereology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Shuying Huang
- Department of Dermatology, the 1st Affiliated Hospital of Fujian Medical University; Fujian Institute of Dermatology and Venereology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Ting Gong
- Fujian Institute of Dermatology and Venereology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| | - Bo Cheng
- Department of Dermatology, the 1st Affiliated Hospital of Fujian Medical University; Fujian Institute of Dermatology and Venereology, Fujian Medical University, Fuzhou, Fujian, People's Republic of China
| |
Collapse
|
125
|
Morrone FB, Gehring MP, Nicoletti NF. Calcium Channels and Associated Receptors in Malignant Brain Tumor Therapy. Mol Pharmacol 2016; 90:403-9. [PMID: 27418672 DOI: 10.1124/mol.116.103770] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Accepted: 07/11/2016] [Indexed: 12/25/2022] Open
Abstract
Malignant brain tumors are highly lethal and aggressive. Despite recent advances in the current therapies, which include the combination of surgery and radio/chemotherapy, the average survival rate remains poor. Altered regulation of ion channels is part of the neoplastic transformation, which suggests that ion channels are involved in cancer. Distinct classes of calcium-permeable channels are abnormally expressed in cancer and are likely involved in the alterations underlying malignant growth. Specifically, cytosolic Ca(2+) activity plays an important role in the regulation of cell proliferation, and Ca(2+) signaling is altered in proliferating tumor cells. A series of previous studies emphasized the importance of the T-type low-voltage-gated calcium channels (VGCC) in different cancer types, including gliomas, and remarkably, pharmacologic inhibition of T-type VGCC caused antiproliferative effects and triggered apoptosis of human glioma cells. Other calcium permeable channels, such as transient receptor potential (TRP) channels, contribute to changes in Ca(2+) by modulating the driving force for Ca(2+) entry, and some TRP channels are required for proliferation and migration in gliomas. Furthermore, recent evidence shows that TRP channels contribute to the progression and survival of the glioblastoma patients. Likewise, the purinergic P2X7 receptor acts as a direct conduit for Ca(2+)-influx and an indirect activator of voltage-gated Ca(2+)-channel. Evidence also shows that P2X7 receptor activation is linked to elevated expression of inflammation promoting factors, tumor cell migration, an increase in intracellular mobilization of Ca(2+), and membrane depolarization in gliomas. Therefore, this review summarizes the recent findings on calcium channels and associated receptors as potential targets to treat malignant gliomas.
Collapse
Affiliation(s)
- Fernanda B Morrone
- Programa de Pós-graduação em Biologia Celular e Molecular (F.B.M., M.P.G., N.F.N), Programa de Pós-graduação em Medicina e Ciências da Saúde, Faculdade de Farmácia, Pontifícia Universidade Católica do RS, Porto Alegre (F.B.M.); Laboratório de Terapia Celular, Centro de Ciências Biológicas e da Saúde, Universidade de Caxias do Sul, Caxias do Sul (N.F.N.), Brasil
| | - Marina P Gehring
- Programa de Pós-graduação em Biologia Celular e Molecular (F.B.M., M.P.G., N.F.N), Programa de Pós-graduação em Medicina e Ciências da Saúde, Faculdade de Farmácia, Pontifícia Universidade Católica do RS, Porto Alegre (F.B.M.); Laboratório de Terapia Celular, Centro de Ciências Biológicas e da Saúde, Universidade de Caxias do Sul, Caxias do Sul (N.F.N.), Brasil
| | - Natália F Nicoletti
- Programa de Pós-graduação em Biologia Celular e Molecular (F.B.M., M.P.G., N.F.N), Programa de Pós-graduação em Medicina e Ciências da Saúde, Faculdade de Farmácia, Pontifícia Universidade Católica do RS, Porto Alegre (F.B.M.); Laboratório de Terapia Celular, Centro de Ciências Biológicas e da Saúde, Universidade de Caxias do Sul, Caxias do Sul (N.F.N.), Brasil
| |
Collapse
|
126
|
Pharmacological targeting of ion channels for cancer therapy: In vivo evidences. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2016; 1863:1385-97. [DOI: 10.1016/j.bbamcr.2015.11.032] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 11/25/2015] [Accepted: 11/26/2015] [Indexed: 12/29/2022]
|
127
|
Kostantin E, Hardy S, Valinsky WC, Kompatscher A, de Baaij JHF, Zolotarov Y, Landry M, Uetani N, Martínez-Cruz LA, Hoenderop JGJ, Shrier A, Tremblay ML. Inhibition of PRL-2·CNNM3 Protein Complex Formation Decreases Breast Cancer Proliferation and Tumor Growth. J Biol Chem 2016; 291:10716-25. [PMID: 26969161 PMCID: PMC4865918 DOI: 10.1074/jbc.m115.705863] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Indexed: 11/06/2022] Open
Abstract
The oncogenic phosphatase of regenerating liver 2 (PRL-2) has been shown to regulate intracellular magnesium levels by forming a complex through an extended amino acid loop present in the Bateman module of the CNNM3 magnesium transporter. Here we identified highly conserved residues located on this amino acid loop critical for the binding with PRL-2. A single point mutation (D426A) of one of those critical amino acids was found to completely disrupt PRL-2·human Cyclin M 3 (CNNM3) complex formation. Whole-cell voltage clamping revealed that expression of CNNM3 influenced the surface current, whereas overexpression of the binding mutant had no effect, indicating that the binding of PRL-2 to CNNM3 is important for the activity of the complex. Interestingly, overexpression of the CNNM3 D426A-binding mutant in cancer cells decreased their ability to proliferate under magnesium-deprived situations and under anchorage-independent growth conditions, demonstrating a PRL-2·CNNM3 complex-dependent oncogenic advantage in a more stringent environment. We further confirmed the importance of this complex in vivo using an orthotopic xenograft breast cancer model. Finally, because molecular modeling showed that the Asp-426 side chain in CNNM3 buries into the catalytic cavity of PRL-2, we showed that a PRL inhibitor could abrogate complex formation, resulting in a decrease in proliferation of human breast cancer cells. In summary, we provide evidence that this fundamental regulatory aspect of PRL-2 in cancer cells could potentially lead to broadly applicable and innovative therapeutic avenues.
Collapse
Affiliation(s)
- Elie Kostantin
- From the Rosalind and Morris Goodman Cancer Research Centre, Montréal, Québec H3A 1A3, Canada, the Departments of Biochemistry and
| | - Serge Hardy
- From the Rosalind and Morris Goodman Cancer Research Centre, Montréal, Québec H3A 1A3, Canada
| | | | - Andreas Kompatscher
- the Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands, and
| | - Jeroen H F de Baaij
- the Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands, and
| | - Yevgen Zolotarov
- From the Rosalind and Morris Goodman Cancer Research Centre, Montréal, Québec H3A 1A3, Canada, the Departments of Biochemistry and
| | - Melissa Landry
- From the Rosalind and Morris Goodman Cancer Research Centre, Montréal, Québec H3A 1A3, Canada
| | - Noriko Uetani
- From the Rosalind and Morris Goodman Cancer Research Centre, Montréal, Québec H3A 1A3, Canada
| | - Luis Alfonso Martínez-Cruz
- the Structural Biology Unit, Center for Cooperative Research in Biosciences (CIC bioGUNE), Technology Park of Bizkaia, 48160 Derio, Bizkaia, Spain
| | - Joost G J Hoenderop
- the Department of Physiology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, 6500 HB Nijmegen, The Netherlands, and
| | - Alvin Shrier
- Physiology, McGill University, Montréal, Québec H3A 0G4, Canada
| | - Michel L Tremblay
- From the Rosalind and Morris Goodman Cancer Research Centre, Montréal, Québec H3A 1A3, Canada, the Departments of Biochemistry and
| |
Collapse
|
128
|
Cervera J, Alcaraz A, Mafe S. Bioelectrical Signals and Ion Channels in the Modeling of Multicellular Patterns and Cancer Biophysics. Sci Rep 2016; 6:20403. [PMID: 26841954 PMCID: PMC4740742 DOI: 10.1038/srep20403] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Accepted: 01/06/2016] [Indexed: 01/08/2023] Open
Abstract
Bioelectrical signals and ion channels are central to spatial patterns in cell ensembles, a problem of fundamental interest in positional information and cancer processes. We propose a model for electrically connected cells based on simple biological concepts: i) the membrane potential of a single cell characterizes its electrical state; ii) the long-range electrical coupling of the multicellular ensemble is realized by a network of gap junction channels between neighboring cells; and iii) the spatial distribution of an external biochemical agent can modify the conductances of the ion channels in a cell membrane and the multicellular electrical state. We focus on electrical effects in small multicellular ensembles, ignoring slow diffusional processes. The spatio-temporal patterns obtained for the local map of cell electric potentials illustrate the normalization of regions with abnormal cell electrical states. The effects of intercellular coupling and blocking of specific channels on the electrical patterns are described. These patterns can regulate the electrically-induced redistribution of charged nanoparticles over small regions of a model tissue. The inclusion of bioelectrical signals provides new insights for the modeling of cancer biophysics because collective multicellular states show electrical coupling mechanisms that are not readily deduced from biochemical descriptions at the individual cell level.
Collapse
Affiliation(s)
- Javier Cervera
- Dept. de Termodinàmica, Facultat de Física, Universitat de València, E-46100 Burjassot, Spain
| | - Antonio Alcaraz
- Dept. de Física, Laboratori de Biofísica Molecular, Universitat “Jaume I”, E-12080 Castelló, Spain
| | - Salvador Mafe
- Dept. de Termodinàmica, Facultat de Física, Universitat de València, E-46100 Burjassot, Spain
| |
Collapse
|
129
|
Ryland KE, Hawkins AG, Weisenberger DJ, Punj V, Borinstein SC, Laird PW, Martens JR, Lawlor ER. Promoter Methylation Analysis Reveals That KCNA5 Ion Channel Silencing Supports Ewing Sarcoma Cell Proliferation. Mol Cancer Res 2015; 14:26-34. [PMID: 26573141 DOI: 10.1158/1541-7786.mcr-15-0343] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 11/04/2015] [Indexed: 02/07/2023]
Abstract
UNLABELLED Polycomb proteins are essential regulators of gene expression in stem cells and development. They function to reversibly repress gene transcription via posttranslational modification of histones and chromatin compaction. In many human cancers, genes that are repressed by polycomb in stem cells are subject to more stable silencing via DNA methylation of promoter CpG islands. Ewing sarcoma is an aggressive bone and soft-tissue tumor that is characterized by overexpression of polycomb proteins. This study investigates the DNA methylation status of polycomb target gene promoters in Ewing sarcoma tumors and cell lines and observes that the promoters of differentiation genes are frequent targets of CpG-island DNA methylation. In addition, the promoters of ion channel genes are highly differentially methylated in Ewing sarcoma compared with nonmalignant adult tissues. Ion channels regulate a variety of biologic processes, including proliferation, and dysfunction of these channels contributes to tumor pathogenesis. In particular, reduced expression of the voltage-gated Kv1.5 channel has been implicated in tumor progression. These data show that DNA methylation of the KCNA5 promoter contributes to stable epigenetic silencing of the Kv1.5 channel. This epigenetic repression is reversed by exposure to the DNA methylation inhibitor decitabine, which inhibits Ewing sarcoma cell proliferation through mechanisms that include restoration of the Kv1.5 channel function. IMPLICATIONS This study demonstrates that promoters of ion channels are aberrantly methylated in Ewing sarcoma and that epigenetic silencing of KCNA5 contributes to tumor cell proliferation, thus providing further evidence of the importance of ion channel dysregulation to tumorigenesis.
Collapse
Affiliation(s)
- Katherine E Ryland
- Department of Pharmacology, University of Michigan, Ann Arbor, Michigan. Translational Oncology Program, University of Michigan, Ann Arbor, Michigan. Department of Pediatrics, University of Michigan, Ann Arbor, Michigan
| | - Allegra G Hawkins
- Translational Oncology Program, University of Michigan, Ann Arbor, Michigan. Department of Pediatrics, University of Michigan, Ann Arbor, Michigan
| | - Daniel J Weisenberger
- Department of Biochemistry and Molecular Biology, University of Southern California, Los Angeles, California. Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Vasu Punj
- Keck School of Medicine, University of Southern California, Los Angeles, California
| | | | - Peter W Laird
- Van Andel Research Institute, Grand Rapids, Michigan
| | - Jeffrey R Martens
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, Florida
| | - Elizabeth R Lawlor
- Translational Oncology Program, University of Michigan, Ann Arbor, Michigan. Department of Pediatrics, University of Michigan, Ann Arbor, Michigan. Department of Pathology, University of Michigan, Ann Arbor, Michigan.
| |
Collapse
|
130
|
Abstract
Membrane voltage connects lipid organization to cell proliferation
[Also see Report by
Zhou
et al.
]
Collapse
Affiliation(s)
- Alessio Accardi
- Departments of Anesthesiology, Biochemistry, and Physiology and Biophysics, Weill Cornell Medical College, New York, NY 10065, USA.
| |
Collapse
|