1
|
Picas L, André-Arpin C, Comunale F, Bousquet H, Tsai FC, Rico F, Maiuri P, Pernier J, Bodin S, Nicot AS, Laporte J, Bassereau P, Goud B, Gauthier-Rouvière C, Miserey S. BIN1 regulates actin-membrane interactions during IRSp53-dependent filopodia formation. Commun Biol 2024; 7:549. [PMID: 38724689 PMCID: PMC11082164 DOI: 10.1038/s42003-024-06168-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 04/09/2024] [Indexed: 05/12/2024] Open
Abstract
Amphiphysin 2 (BIN1) is a membrane and actin remodeling protein mutated in congenital and adult centronuclear myopathies. Here, we report an unexpected function of this N-BAR domain protein BIN1 in filopodia formation. We demonstrated that BIN1 expression is necessary and sufficient to induce filopodia formation. BIN1 is present at the base of forming filopodia and all along filopodia, where it colocalizes with F-actin. We identify that BIN1-mediated filopodia formation requires IRSp53, which allows its localization at negatively-curved membrane topologies. Our results show that BIN1 bundles actin in vitro. Finally, we identify that BIN1 regulates the membrane-to-cortex architecture and functions as a molecular platform to recruit actin-binding proteins, dynamin and ezrin, to promote filopodia formation.
Collapse
Affiliation(s)
- Laura Picas
- Institut de Recherche en Infectiologie de Montpellier (IRIM), University of Montpellier, CNRS UMR 9004, Montpellier, France.
| | - Charlotte André-Arpin
- Institut de Recherche en Infectiologie de Montpellier (IRIM), University of Montpellier, CNRS UMR 9004, Montpellier, France
| | - Franck Comunale
- CRBM, University of Montpellier, CNRS UMR 5237, Montpellier, France
| | - Hugo Bousquet
- Institut Curie, CNRS UMR 144, PSL Research University, Paris, France
| | - Feng-Ching Tsai
- Institut Curie, CNRS UMR 168, PSL Research University, Paris, France
| | - Félix Rico
- Aix-Marseille Université, U1325 INSERM, DyNaMo, Turing center for living systems, Marseille, France
| | - Paolo Maiuri
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, Naples, Italy
| | - Julien Pernier
- Université Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette, France
| | - Stéphane Bodin
- CRBM, University of Montpellier, CNRS UMR 5237, Montpellier, France
| | - Anne-Sophie Nicot
- Grenoble Alpes University, INSERM U1216, Grenoble Institut Neurosciences, Grenoble, France
| | - Jocelyn Laporte
- Department of Translational Medicine, IGBMC, U1258, UMR7104 Strasbourg University, Collège de France, Illkirch, France
| | | | - Bruno Goud
- Institut Curie, CNRS UMR 144, PSL Research University, Paris, France
| | | | - Stéphanie Miserey
- Institut Curie, CNRS UMR 144, PSL Research University, Paris, France.
| |
Collapse
|
2
|
Gallo-Oller G, de Ståhl TD, Alaiya A, Nilsson S, Holmberg AR, Márquez-Méndez M. Cytotoxicity of poly-guanidine in medulloblastoma cell lines. Invest New Drugs 2023; 41:688-698. [PMID: 37556022 PMCID: PMC10560188 DOI: 10.1007/s10637-023-01386-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 07/14/2023] [Indexed: 08/10/2023]
Abstract
Medulloblastoma (MB) is the most common pediatric brain tumor. The therapy frequently causes serious side effects, and new selective therapies are needed. MB expresses hyper sialylation, a possible target for selective therapy. The cytotoxic efficacy of a poly guanidine conjugate (GuaDex) incubated with medulloblastoma cell cultures (DAOY and MB-LU-181) was investigated. The cells were incubated with 0.05-8 µM GuaDex from 15 min to 72 h. A fluorometric cytotoxicity assay (FMCA) measured the cytotoxicity. Labeled GuaDex was used to study tumor cell interaction. FITC-label Sambucus nigra confirmed high expression of sialic acid (Sia). Immunofluorescence microscopy was used to visualize the cell F-actin and microtubules. The cell interactions were studied by confocal and fluorescence microscopy. Annexin-V assay was used to detect apoptosis. Cell cycle analysis was done by DNA content determination. A wound-healing migration assay determined the effects on the migratory ability of DAOY cells after GuaDex treatment. IC50 for GuaDex was 223.4 -281.1 nM. FMCA showed potent growth inhibition on DAOY and MB-LU-181 cells at 5 uM GuaDex after 4 h of incubation. GuaDex treatment induced G2/M phase cell cycle arrest. S. nigra FITC-label lectin confirmed high expression of Sia on DAOY medulloblastoma cells. The GuaDex treatment polymerized the cytoskeleton (actin filaments and microtubules) and bound to DNA, inducing condensation. The Annexin V assay results were negative. Cell migration was inhibited at 0.5 µM GuaDex concentration after 24 h of incubation. GuaDex showed potent cytotoxicity and invasion-inhibitory effects on medulloblastoma cells at low micromolar concentrations. GuaDex efficacy was significant and warrants further studies.
Collapse
Affiliation(s)
- Gabriel Gallo-Oller
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | | | - Ayodele Alaiya
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
- Cell Therapy and Immunobiology Department, King Faisal Specialist Hospital and Research Centre Oncology Centre, Riyadh, Saudi Arabia
| | - Sten Nilsson
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Anders R Holmberg
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Marcela Márquez-Méndez
- Department of Oncology-Pathology, Karolinska Institutet, Stockholm, Sweden.
- Center for Research and Development in Health Sciences, Autonomous University of Nuevo León, Monterrey, N.L., Mexico.
| |
Collapse
|
3
|
Barik GK, Sahay O, Paul D, Santra MK. Ezrin gone rogue in cancer progression and metastasis: An enticing therapeutic target. Biochim Biophys Acta Rev Cancer 2022; 1877:188753. [PMID: 35752404 DOI: 10.1016/j.bbcan.2022.188753] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 06/16/2022] [Accepted: 06/18/2022] [Indexed: 12/12/2022]
Abstract
Cancer metastasis is the primary cause of morbidity and mortality in cancer as it remains the most complicated, devastating, and enigmatic aspect of cancer. Several decades of extensive research have identified several key players closely associated with metastasis. Among these players, cytoskeletal linker Ezrin (the founding member of the ERM (Ezrin-Radixin-Moesin) family) was identified as a critical promoter of metastasis in pediatric cancers in the early 21st century. Ezrin was discovered 40 years ago as a aminor component of intestinal epithelial microvillus core protein, which is enriched in actin-containing cell surface structures. It controls gastric acid secretion and plays diverse physiological roles including maintaining cell polarity, regulating cell adhesion, cell motility and morphogenesis. Extensive research for more than two decades evinces that Ezrin is frequently dysregulated in several human cancers. Overexpression, altered subcellular localization and/or aberrant activation of Ezrin are closely associated with higher metastatic incidence and patient mortality, thereby justifying Ezrin as a valuable prognostic biomarker in cancer. Ezrin plays multifaceted role in multiple aspects of cancer, with its significant contribution in the complex metastatic cascade, through reorganizing the cytoskeleton and deregulating various cellular signaling pathways. Current preclinical studies using genetic and/or pharmacological approaches reveal that inactivation of Ezrin results in significant inhibition of Ezrin-mediated tumor growth and metastasis as well as increase in the sensitivity of cancer cells to various chemotherapeutic drugs. In this review, we discuss the recent advances illuminating the molecular mechanisms responsible for Ezrin dysregulation in cancer and its pleiotropic role in cancer progression and metastasis. We also highlight its potential as a prognostic biomarker and therapeutic target in various cancers. More importantly, we put forward some potential questions, which we strongly believe, will stimulate both basic and translational research to better understand Ezrin-mediated malignancy, ultimately leading to the development of Ezrin-targeted cancer therapy for the betterment of human life.
Collapse
Affiliation(s)
- Ganesh Kumar Barik
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Osheen Sahay
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India; Department of Biotechnology, Savitribai Phule Pune University, Ganeshkhind Road, Pune, Maharashtra 411007, India
| | - Debasish Paul
- Laboratory of Cancer Biology and Genetics, Centre for Cancer Research, National Cancer Institute, Bethesda, MD, USA
| | - Manas Kumar Santra
- Cancer Biology Division, National Centre for Cell Science, Ganeshkhind Road, Pune, Maharashtra 411007, India.
| |
Collapse
|
4
|
Eskandari M, Mellati AA. Liver X Receptor as a Possible Drug Target for Blood-Brain Barrier Integrity. Adv Pharm Bull 2021; 12:466-475. [PMID: 35935038 PMCID: PMC9348539 DOI: 10.34172/apb.2022.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 08/13/2021] [Indexed: 12/04/2022] Open
Abstract
Purpose: blood-brain barrier (BBB) is made of specialized cells that are responsible for the selective passage of substances directed to the brain. The integrated BBB is essential for precise controlling of the different substances passage as well as protecting the brain from various damages. In this article, we attempted to explain the role of liver X receptor (LXR) in maintaining BBB integrity as a possible drug target.
Methods: In this study, various databases, including PubMed, Google Scholar, and Scopus were searched using the following keywords: blood-brain barrier, BBB, liver X receptor, and LXR until July, 2020. Additionally, contents close to the subject of our study were surveyed.
Results: LXR is a receptor the roles of which in various diseases have been investigated. LXR can affect maintaining BBB by affecting various ways such as ATP-binding cassette transporter A1 (ABCA1), matrix metalloproteinase-9 (MMP9), insulin-like growth factor 1 (IGF1), nuclear factor-kappa B (NF-κB) signaling, mitogen-activated protein kinase (MAPK), tight junction molecules, both signal transducer and activator of transcription 1 (STAT1), Wnt/β-catenin Signaling, transforming growth factor beta (TGF-β) signaling, and expressions of Smad 2/3 and Snail.
Conclusion: LXR could possibly be used either as a target for drug delivery to brain tissue or as a target for maintaining the BBB integrity in different diseases; thereby the drug will be conducted to tissues, other than the brain. If it is verified that only LXRα is necessary for protecting BBB, some specific LXRα ligands must be found and then used in medication.
Collapse
Affiliation(s)
- Mahsa Eskandari
- Medical school, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Ali Awsat Mellati
- Zanjan Metabolic Disease Research Center, Zanjan University of Medical Sciences, Zanjan, Iran
| |
Collapse
|
5
|
Li M, Deng Y, Zhang W. Molecular Determinants of Medulloblastoma Metastasis and Leptomeningeal Dissemination. Mol Cancer Res 2021; 19:743-752. [PMID: 33608450 DOI: 10.1158/1541-7786.mcr-20-1026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/15/2021] [Accepted: 02/15/2021] [Indexed: 11/16/2022]
Abstract
Medulloblastoma is the most common malignant brain cancer in pediatrics consisting of four molecular subgroups, namely wingless (WNT), sonic hedgehog (SHH), Group 3, and Group 4. One of the biggest challenges in the clinical management of this disease is the leptomeningeal dissemination (LMD) of tumor cells with high morbidity and mortality. Many molecular regulators to date have been identified to participate in medulloblastoma metastasis. In the SHH subgroup, the co-upregulation of CXCR4 and PDGFR, as well as the activation of c-MET, show significant promigratory effects on medulloblastoma cells. Amplification or overexpression of genes on the long arm of chromosome 17, such as LASP1 and WIP1, facilitates tumor invasion in both Group 3 and Group 4 medulloblastomas. PRUNE1, NOTCH1, and MYC interactor JPO2 are more specific genetic drivers of metastatic Group 3 tumors. The RAS/MAPK and PI3K/AKT pathways are two crucial signal transduction pathways that may work as the convergent downstream mechanism of various metastatic drivers. Extracellular signals and cellular components in the tumor microenvironment also play a vital role in promoting the spread and colonization of medulloblastoma cells. For instance, the stromal granule cells and astrocytes support tumor growth and dissemination by secreting PlGF and CCL2, respectively. Importantly, the genetic divergence has been determined between the matched primary and metastatic medulloblastoma samples. However, the difficulty of obtaining metastatic medulloblastoma tissue hinders more profound studies of LMD. Therefore, identifying and analyzing the subclone with the metastatic propensity in the primary tumor is essential for future investigation.
Collapse
Affiliation(s)
- Min Li
- Department of Pediatrics Neurosurgery, Neurosurgery Center, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yuhao Deng
- Department of Pediatrics Neurosurgery, Neurosurgery Center, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Wangming Zhang
- Department of Pediatrics Neurosurgery, Neurosurgery Center, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Zhujiang Hospital, Southern Medical University, Guangzhou, China.
| |
Collapse
|
6
|
Song Y, Ma X, Zhang M, Wang M, Wang G, Ye Y, Xia W. Ezrin Mediates Invasion and Metastasis in Tumorigenesis: A Review. Front Cell Dev Biol 2020; 8:588801. [PMID: 33240887 PMCID: PMC7683424 DOI: 10.3389/fcell.2020.588801] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 10/21/2020] [Indexed: 12/13/2022] Open
Abstract
Ezrin, as encoded by the EZR gene, is a member of the Ezrin/Radixin/Moesin (ERM) family. The ERM family includes three highly related actin filament binding proteins, Ezrin, Radixin, and Moesin. These three members share similar structural properties containing an N-terminal domain named FERM, a central helical linker region, and a C-terminal domain that mediates the interaction with F-actin. Ezrin protein is highly regulated through the conformational change between a closed, inactivate form and an open, active form. As a membrane-cytoskeleton linker protein, Ezrin facilitates numerous signal transductions in tumorigenesis and mediates diverse essential functions through interactions with a variety of growth factor receptors and adhesion molecules. Emerging evidence has demonstrated that Ezrin is an oncogene protein, as high levels of Ezrin are associated with metastatic behavior in various types of cancer. The diverse functions attributed to Ezrin and the understanding of how Ezrin drives the deadly process of metastasis are complex and often controversial. Here by reviewing recent findings across a wide spectrum of cancer types we will highlight the structures, protein interactions and oncogenic roles of Ezrin as well as the emerging therapeutic agents targeting Ezrin. This review provides a comprehensive framework to guide future studies of Ezrin and other ERM proteins in basic and clinical studies.
Collapse
Affiliation(s)
- Yanan Song
- Central Laboratory, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaokun Ma
- Department of Nuclear Medicine, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Miao Zhang
- Central Laboratory, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Menghan Wang
- Department of Nuclear Medicine, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Guoyu Wang
- Department of Nuclear Medicine, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ying Ye
- Central Laboratory, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wei Xia
- Department of Nuclear Medicine, The Seventh People's Hospital of Shanghai University of Traditional Chinese Medicine, Shanghai, China
| |
Collapse
|
7
|
Tsai FC, Bertin A, Bousquet H, Manzi J, Senju Y, Tsai MC, Picas L, Miserey-Lenkei S, Lappalainen P, Lemichez E, Coudrier E, Bassereau P. Ezrin enrichment on curved membranes requires a specific conformation or interaction with a curvature-sensitive partner. eLife 2018; 7:37262. [PMID: 30234483 PMCID: PMC6167055 DOI: 10.7554/elife.37262] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 09/14/2018] [Indexed: 01/12/2023] Open
Abstract
One challenge in cell biology is to decipher the biophysical mechanisms governing protein enrichment on curved membranes and the resulting membrane deformation. The ERM protein ezrin is abundant and associated with cellular membranes that are flat, positively or negatively curved. Using in vitro and cell biology approaches, we assess mechanisms of ezrin’s enrichment on curved membranes. We evidence that wild-type ezrin (ezrinWT) and its phosphomimetic mutant T567D (ezrinTD) do not deform membranes but self-assemble anti-parallelly, zipping adjacent membranes. EzrinTD’s specific conformation reduces intermolecular interactions, allows binding to actin filaments, which reduces membrane tethering, and promotes ezrin binding to positively-curved membranes. While neither ezrinTD nor ezrinWT senses negative curvature alone, we demonstrate that interacting with curvature-sensing I-BAR-domain proteins facilitates ezrin enrichment in negatively-curved membrane protrusions. Overall, our work demonstrates that ezrin can tether membranes, or be targeted to curved membranes, depending on conformations and interactions with actin and curvature-sensing binding partners.
Collapse
Affiliation(s)
- Feng-Ching Tsai
- Laboratoire Physico Chimie Curie, Institut Curie, PSL Research University, CNRS UMR168, Paris, France.,Sorbonne Université, Paris, France
| | - Aurelie Bertin
- Laboratoire Physico Chimie Curie, Institut Curie, PSL Research University, CNRS UMR168, Paris, France.,Sorbonne Université, Paris, France
| | - Hugo Bousquet
- Sorbonne Université, Paris, France.,Compartimentation et dynamique cellulaire, Institut Curie, PSL Research University, CNRS UMR144, Paris, France
| | - John Manzi
- Laboratoire Physico Chimie Curie, Institut Curie, PSL Research University, CNRS UMR168, Paris, France.,Sorbonne Université, Paris, France
| | - Yosuke Senju
- Program in Cell and Molecular Biology, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Meng-Chen Tsai
- Université Côte d'Azur, CNRS, Institut de Pharmacologie Moléculaire et Cellulaire, Valbonne, France.,Département de Microbiologie, Unité des Toxines Bactériennes, Université Paris Descartes, Institut Pasteur, Paris, France
| | - Laura Picas
- Institut de Recherche en Infectiologie de Montpellier (IRIM), CNRS UMR 9004, Montpellier, France
| | - Stephanie Miserey-Lenkei
- Sorbonne Université, Paris, France.,Compartimentation et dynamique cellulaire, Institut Curie, PSL Research University, CNRS UMR144, Paris, France
| | - Pekka Lappalainen
- Program in Cell and Molecular Biology, Institute of Biotechnology, University of Helsinki, Helsinki, Finland
| | - Emmanuel Lemichez
- Département de Microbiologie, Unité des Toxines Bactériennes, Université Paris Descartes, Institut Pasteur, Paris, France
| | - Evelyne Coudrier
- Sorbonne Université, Paris, France.,Compartimentation et dynamique cellulaire, Institut Curie, PSL Research University, CNRS UMR144, Paris, France
| | - Patricia Bassereau
- Laboratoire Physico Chimie Curie, Institut Curie, PSL Research University, CNRS UMR168, Paris, France.,Sorbonne Université, Paris, France
| |
Collapse
|
8
|
Neural Stem Cell Death Mechanisms Induced by Amyloid Beta. Dement Neurocogn Disord 2017; 16:121-127. [PMID: 30906383 PMCID: PMC6428004 DOI: 10.12779/dnd.2017.16.4.121] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 12/15/2017] [Accepted: 12/15/2017] [Indexed: 12/13/2022] Open
Abstract
Background and Purpose Amyloid beta (Aβ) is the main component of amyloid plaques, which are deposited in the brains of patients with Alzheimer's disease (AD). Biochemical and animal studies support the central role of Aβ in AD pathogenesis. Despite several investigations focused on the pathogenic mechanisms of Aβ, it is still unclear how Aβ accumulates in the central nervous system and subsequently initiates the disease at the cellular level. In this study, we investigated the pathogenic mechanisms of Aβ using proteomics and antibody microarrays. Methods To evaluate the effect of Aβ on neural stem cells (NSCs), we treated primary cultured cortical NSCs with several doses of Aβ for 48 h. A 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide assay, trypan blue staining, and bromodeoxyuridine cell proliferation assay were performed. We detected several intracellular proteins that may be associated with Aβ by proteomics and Western blotting analysis. Results Various viability tests showed that Aβ decreased NSCs viability and cell proliferation in a concentration-dependent manner. Aβ treatment significantly decreased lactate dehydrogenase B, high-mobility group box 1, aldolase C, Ezrin, and survival signals including phosphorylated phosphoinositide 3-kinase, Akt, and glycogen synthase kinase-3β. Conclusions These results suggest that several factors determined by proteomics and Western blot hold the clue to Aβ pathogenesis. Further studies are required to investigate the role of these factors.
Collapse
|
9
|
Bakheet AMH, Mahmoud SA, Huang Y, Zhang J, Wang J, Wei Y, Gamallat Y, Awadasseid A, Owusu L, Khidir Y, Wang L, Zhou S, Seewooruttun PK, Xin B, Xuan W, Su Z, Tang J. Ezrin as a possible diagnostic and/or prognostic biomarker in mice lymphatic metastatic hepatocellular carcinoma in vivo. Biofactors 2017; 43:662-672. [PMID: 28608644 DOI: 10.1002/biof.1368] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 04/27/2017] [Accepted: 05/02/2017] [Indexed: 12/12/2022]
Abstract
Hepatocellular carcinoma (HCC) ranks in the top of cancers leading to death. Early diagnosis is the big challenge in the case of HCC. Our in vitro study showed that Ezrin expression in lymphatic metastasis hepatocellular carcinoma (LNM-HCC) was associated with the metastatic rate. Here we aim to evaluate Ezrin expression as diagnostic and/or prognostic biomarker of LNM-HCC in mice. Chinese inbred 615 mice, Hca-F and Hca-P cell lines were used in the study. Histological changes were determined by Hematoxylin and Eosin, while Ezrin expression was assessed by qRT-PCR, western blot, immunohistochemistry, and enzyme-linked immunosorbent assay. Ezrin expression in this study gives credit to our in vitro study which Ezrin expression was positively correlated with LNM-HCC and negatively with Annexin7 (A7) expression. The highest histological changes were observed in high metastatic primary/secondary tumors combined with high Ezrin expression. Ezrin and A7 are higher in total primary tumors than in total secondary tumors (P = 0.0001, P = 0.021), respectively. Ezrin expression was enhanced in Hca-P A7 down-regulated primary/secondary tumors (P = 0.004), whereas, Ezrin expression was suppressed in Hca-F A7 upregulated primary/secondary tumors. Serum ELISA indicated differential expression of Ezrin among the study groups (P ≤ 0.0001). Ezrin expression was higher in NC-Hca-F than NC-Hca-P (P ≤ 0.0001), suppressed in Hca-F A7 upregulation (P ≤ 0.0001) and in enhanced in Hca-P A7 down-regulation (P = 0.0001). In conclusion, Ezrin level may serve as a differential diagnostic and/or prognostic biomarker for high and low LNM-HCC and may be beneficial in the diagnosis of HCC disease. © 2017 BioFactors, 43(5):662-672, 2017.
Collapse
Affiliation(s)
- Ahmed Musa Hago Bakheet
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Salma Abdi Mahmoud
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yuhong Huang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Jun Zhang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Jingwen Wang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yuanyi Wei
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yaser Gamallat
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Annoor Awadasseid
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Lawrence Owusu
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Yousra Khidir
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Li Wang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Shuting Zhou
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Pawan Kumar Seewooruttun
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Boyi Xin
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Wei Xuan
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Zhen Su
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| | - Jianwu Tang
- Department of Pathology, Key Laboratory for Tumor Metastasis and Intervention of Liaoning Province, Dalian Medical University, Dalian Liaoning, China
| |
Collapse
|
10
|
Wei W, Huang W, Lin Y, Becker EBE, Ansorge O, Flockerzi V, Conti D, Cenacchi G, Glitsch MD. Functional expression of calcium-permeable canonical transient receptor potential 4-containing channels promotes migration of medulloblastoma cells. J Physiol 2017; 595:5525-5544. [PMID: 28627017 PMCID: PMC5556167 DOI: 10.1113/jp274659] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 06/15/2017] [Indexed: 12/29/2022] Open
Abstract
KEY POINTS The proton sensing ovarian cancer G protein coupled receptor 1 (OGR1, aka GPR68) promotes expression of the canonical transient receptor potential channel subunit TRPC4 in normal and transformed cerebellar granule precursor (DAOY) cells. OGR1 and TRPC4 are prominently expressed in healthy cerebellar tissue throughout postnatal development and in primary cerebellar medulloblastoma tissues. Activation of TRPC4-containing channels in DAOY cells, but not non-transformed granule precursor cells, results in prominent increases in [Ca2+ ]i and promotes cell motility in wound healing and transwell migration assays. Medulloblastoma cells not arising from granule precursor cells show neither prominent rises in [Ca2+ ]i nor enhanced motility in response to TRPC4 activation unless they overexpressTRPC4. Our results suggest that OGR1 enhances expression of TRPC4-containing channels that contribute to enhanced invasion and metastasis of granule precursor-derived human medulloblastoma. ABSTRACT Aberrant intracellular Ca2+ signalling contributes to the formation and progression of a range of distinct pathologies including cancers. Rises in intracellular Ca2+ concentration occur in response to Ca2+ influx through plasma membrane channels and Ca2+ release from intracellular Ca2+ stores, which can be mobilized in response to activation of cell surface receptors. Ovarian cancer G protein coupled receptor 1 (OGR1, aka GPR68) is a proton-sensing Gq -coupled receptor that is most highly expressed in cerebellum. Medulloblastoma (MB) is the most common paediatric brain tumour that arises from cerebellar precursor cells. We found that nine distinct human MB samples all expressed OGR1. In both normal granule cells and the transformed human cerebellar granule cell line DAOY, OGR1 promoted expression of the proton-potentiated member of the canonical transient receptor potential (TRPC) channel family, TRPC4. Consistent with a role for TRPC4 in MB, we found that all MB samples also expressed TRPC4. In DAOY cells, activation of TRPC4-containing channels resulted in large Ca2+ influx and enhanced migration, while in normal cerebellar granule (precursor) cells and MB cells not derived from granule precursors, only small levels of Ca2+ influx and no enhanced migration were observed. Our results suggest that OGR1-dependent increases in TRPC4 expression may favour formation of highly Ca2+ -permeable TRPC4-containing channels that promote transformed granule cell migration. Increased motility of cancer cells is a prerequisite for cancer invasion and metastasis, and our findings may point towards a key role for TRPC4 in progression of certain types of MB.
Collapse
Affiliation(s)
- Wei‐Chun Wei
- Department of Physiology, Anatomy and GeneticsUniversity of OxfordOxfordOX1 3PTUK
| | - Wan‐Chen Huang
- Department of Physiology, Anatomy and GeneticsUniversity of OxfordOxfordOX1 3PTUK
- Institute of Cellular and Organismic BiologyAcademia SinicaTaipei115Taiwan
| | - Yu‐Ping Lin
- Department of Physiology, Anatomy and GeneticsUniversity of OxfordOxfordOX1 3PTUK
| | - Esther B. E. Becker
- Department of Physiology, Anatomy and GeneticsUniversity of OxfordOxfordOX1 3PTUK
| | - Olaf Ansorge
- Nuffield Department of Clinical NeurosciencesUniversity of OxfordOxfordOX3 9DUUK
| | - Veit Flockerzi
- Experimental and Clinical Pharmacology and ToxicologySaarland UniversityHomburgGermany
| | - Daniele Conti
- Department of Biomedical and Neuromotor ScienceUniversity of BolognaItaly
| | - Giovanna Cenacchi
- Department of Biomedical and Neuromotor ScienceUniversity of BolognaItaly
| | - Maike D. Glitsch
- Department of Physiology, Anatomy and GeneticsUniversity of OxfordOxfordOX1 3PTUK
| |
Collapse
|
11
|
Hago AM, Gamallat Y, Mahmoud SA, Huang Y, Zhang J, Mahmoud YK, Wang J, Wei Y, Wang L, Zhou S, Awsh MA, Yabasin IB, Tang J. Ezrin expression is altered in mice lymphatic metastatic hepatocellular carcinoma and subcellular fractions upon Annexin 7 modulation in-vitro. Biomed Pharmacother 2017; 85:209-217. [DOI: 10.1016/j.biopha.2016.10.071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 10/07/2016] [Accepted: 10/24/2016] [Indexed: 01/03/2023] Open
|
12
|
Kondoff SI, Milev MD, Laleva LN, Tzekov CC, Kostadinova CP, Kirova-Nedyalkova GI, Dakova PD. A case of early extraneural medulloblastoma metastases in a young adult. Asian J Neurosurg 2015; 10:331-3. [PMID: 26425169 PMCID: PMC4558816 DOI: 10.4103/1793-5482.162723] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Extraneural metastases are a relatively rare manifestation of the primary brain tumors, and a major part of the cases has been associated with initial medulloblastoma. Herein, we present the case of a young female adult diagnosed and operated for medulloblastoma. The patient developed extraneural metastases in the first postoperative year. The condition exhibited an aggressive course of development, and the applied treatment approaches were unable to halt its progression. A short literature review identifies the predictive factors determining both prognosis and treatability of the condition; the current limitations and future perspectives of the treatment options are discussed.
Collapse
|
13
|
Watson RL, Buck J, Levin LR, Winger RC, Wang J, Arase H, Muller WA. Endothelial CD99 signals through soluble adenylyl cyclase and PKA to regulate leukocyte transendothelial migration. ACTA ACUST UNITED AC 2015; 212:1021-41. [PMID: 26101266 PMCID: PMC4493416 DOI: 10.1084/jem.20150354] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 05/14/2015] [Indexed: 12/30/2022]
Abstract
CD99 is a critical regulator of leukocyte transendothelial migration (TEM). Watson et al. describe the CD99 signaling pathway responsible. This involves a complex of CD99 with the A-kinase anchoring protein ezrin and soluble adenylyl cyclase that activates protein kinase A during leukocyte TEM. CD99 is a critical regulator of leukocyte transendothelial migration (TEM). How CD99 signals during this process remains unknown. We show that during TEM, endothelial cell (EC) CD99 activates protein kinase A (PKA) via a signaling complex formed with the lysine-rich juxtamembrane cytoplasmic tail of CD99, the A-kinase anchoring protein ezrin, and soluble adenylyl cyclase (sAC). PKA then stimulates membrane trafficking from the lateral border recycling compartment to sites of TEM, facilitating the passage of leukocytes across the endothelium. Pharmacologic or genetic inhibition of EC sAC or PKA, like CD99 blockade, arrests neutrophils and monocytes partway through EC junctions, in vitro and in vivo, without affecting leukocyte adhesion or the expression of relevant cellular adhesion molecules. This is the first description of the CD99 signaling pathway in TEM as well as the first demonstration of a role for sAC in leukocyte TEM.
Collapse
Affiliation(s)
- Richard L Watson
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60208
| | - Jochen Buck
- Department of Pharmacology, Weill Medical College of Cornell University, New York, NY 10065
| | - Lonny R Levin
- Department of Pharmacology, Weill Medical College of Cornell University, New York, NY 10065
| | - Ryan C Winger
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60208
| | - Jing Wang
- Laboratory of Immunochemistry, WPI Immunology Frontier Research Center and Department of Immunochemistry, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - Hisashi Arase
- Laboratory of Immunochemistry, WPI Immunology Frontier Research Center and Department of Immunochemistry, Research Institute for Microbial Diseases, Osaka University, Osaka 565-0871, Japan
| | - William A Muller
- Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60208
| |
Collapse
|
14
|
Abstract
Medulloblastoma is the most common malignant brain tumor of childhood. Although there is now long-term survival or cure for the majority of children, the survivors bear a significant burden of complications due, at least in part, to the intense therapies given to ensure eradication of the tumor. Significant efforts have been made over the years to be able to distinguish between patients who do and do not need intensive therapies. This review summarizes the history and current state of clinical risk stratification, pathologic diagnosis and genetics. Recent developments in correlation between genetics and pathology, genome-wide association studies and the biology of medulloblastoma metastasis are discussed in detail. The current state of clinical treatment trials are reviewed and placed into the perspective of potential novel therapies in the near term.
Collapse
Affiliation(s)
- Donya Aref
- University Health Network Pathology, Arthur & Sonia Labatt Brain Tumour Research Centre, Department of Laboratory Medicine & Pathobiology, Toronto, ON, Canada
| | | |
Collapse
|
15
|
Zhang N, Xie Y, Li B, Ning Z, Wang A, Cui X. FoxM1 influences mouse hepatocellular carcinoma metastasis in vitro. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2015; 8:2771-2778. [PMID: 26045783 PMCID: PMC4440092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/21/2014] [Accepted: 02/21/2015] [Indexed: 06/04/2023]
Abstract
Lymph node metastasis is recognized as an important mode of liver cancer metastasis. Two hepatocarcinoma cell lines, Hca-F get high (75%) and Hca-P get low (25%) incidences of lymph node metastasis. Forkhead box M1 (FoxM1) is described as a major oncogenic transcription factor in tumor initiation, promotion, and progression. Ezrin is linked to aggressive tumor behavior by involving all stages of tumor metastasis. We firstly compared the expression of FoxM1 and Ezrin between two cells. Then we transiently transfected Hca-P cells with over-FoxM1 plasmid and Hca-F cells with sh-FoxM1 plasmid. We found that both FoxM1 and Ezrin expressed higher in Hca-F than Hca-P. We successfully down-regulated or up-regulated FoxM1 expression in Hca-F or Hca-P cells. And we found that FoxM1 had correlation with proliferation, invasion and migration in mouse hepatocellular carcinoma cell lines.
Collapse
Affiliation(s)
- Ningning Zhang
- Department of Oncology, The First Affiliated Hospital of Dalian Medical UniversityDalian 116011, China
| | - Yunpeng Xie
- Department of Biochemistry and Molecular Biology, Dalian Medical UniversityDalian 116044, China
| | - Benke Li
- Department of Intervention, Dalian Sixth People’s Hospital116037, China
| | - Zhen Ning
- Department of General Surgery, The First Affiliated Hospital, Dalian Medical University116011, China
| | - Aman Wang
- Department of Oncology, The First Affiliated Hospital of Dalian Medical UniversityDalian 116011, China
| | - Xiaonan Cui
- Department of Oncology, The First Affiliated Hospital of Dalian Medical UniversityDalian 116011, China
| |
Collapse
|
16
|
Erickson KL, Hickey MJ, Kato Y, Malone CC, Owens GC, Prins RM, Liau LM, Kasahara N, Kruse CA. Radial mobility and cytotoxic function of retroviral replicating vector transduced, non-adherent alloresponsive T lymphocytes. J Vis Exp 2015. [PMID: 25741775 DOI: 10.3791/52416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
We report a novel adaptation of the Radial Monolayer Cell Migration assay, first reported to measure the radial migration of adherent tumor cells on extracellular matrix proteins, for measuring the motility of fluorescently-labeled, non-adherent human or murine effector immune cells. This technique employs a stainless steel manifold and 10-well Teflon slide to focally deposit non-adherent T cells into wells prepared with either confluent tumor cell monolayers or extracellular matrix proteins. Light and/or multi-channel fluorescence microscopy is used to track the movement and behavior of the effector cells over time. Fluorescent dyes and/or viral vectors that code for fluorescent transgenes are used to differentially label the cell types for imaging. This method is distinct from similar-type in vitro assays that track horizontal or vertical migration/invasion utilizing slide chambers, agar or transwell plates. The assay allows detailed imaging data to be collected with different cell types distinguished by specific fluorescent markers; even specific subpopulations of cells (i.e., transduced/nontransduced) can be monitored. Surface intensity fluorescence plots are generated using specific fluorescence channels that correspond to the migrating cell type. This allows for better visualization of the non-adherent immune cell mobility at specific times. It is possible to gather evidence of other effector cell functions, such as cytotoxicity or transfer of viral vectors from effector to target cells, as well. Thus, the method allows researchers to microscopically document cell-to-cell interactions of differentially-labeled, non-adherent with adherent cells of various types. Such information may be especially relevant in the assessment of biologically-manipulated or activated immune cell types, where visual proof of functionality is desired with tumor target cells before their use for cancer therapy.
Collapse
Affiliation(s)
- Kate L Erickson
- Department of Neurosurgery, UCLA David Geffen School of Medicine
| | | | - Yuki Kato
- Department of Molecular and Medical Pharmacology, UCLA David Geffen School of Medicine
| | - Colin C Malone
- Department of Neurosurgery, UCLA David Geffen School of Medicine
| | - Geoffrey C Owens
- Department of Neurosurgery, UCLA David Geffen School of Medicine
| | - Robert M Prins
- Department of Neurosurgery, UCLA David Geffen School of Medicine; Department of Molecular and Medical Pharmacology, UCLA David Geffen School of Medicine
| | - Linda M Liau
- Department of Neurosurgery, UCLA David Geffen School of Medicine; Brain Research Institute, UCLA David Geffen School of Medicine; Jonsson Comprehensive Cancer Center, UCLA David Geffen School of Medicine
| | - Noriyuki Kasahara
- Department of Medicine, UCLA David Geffen School of Medicine; Jonsson Comprehensive Cancer Center, UCLA David Geffen School of Medicine
| | - Carol A Kruse
- Department of Neurosurgery, UCLA David Geffen School of Medicine; Brain Research Institute, UCLA David Geffen School of Medicine; Jonsson Comprehensive Cancer Center, UCLA David Geffen School of Medicine;
| |
Collapse
|
17
|
Murad N, Kokkinaki M, Gunawardena N, Gunawan MS, Hathout Y, Janczura KJ, Theos AC, Golestaneh N. miR-184 regulates ezrin, LAMP-1 expression, affects phagocytosis in human retinal pigment epithelium and is downregulated in age-related macular degeneration. FEBS J 2014; 281:5251-64. [PMID: 25251993 DOI: 10.1111/febs.13066] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Revised: 09/15/2014] [Accepted: 09/19/2014] [Indexed: 01/06/2023]
Abstract
MicroRNA 184 (miR-184) is known to play a key role in neurological development and apoptosis and is highly expressed in mouse brain, mouse corneal epithelium, zebrafish lens and human retinal pigment epithelium (RPE). However, the role of miR-184 in RPE is largely unknown. We investigated the role of miR-184 in RPE and its possible implication in age-related macular degeneration (AMD). Proteomic analysis identified the ezrin (EZR) gene as a target of miR-184 in human RPE. EZR is a membrane cytoskeleton crosslinker that is also known to bind to lysosomal-associated membrane protein 1 (LAMP-1) during the formation of phagocytic vacuoles. In adult retinal pigment epithelium 19 (ARPE19) cells, inhibition of miR-184 resulted in upregulation of EZR mRNA and EZR protein, and induced downregulation of LAMP-1. The inhibition of miR-184 decreased EZR-bound LAMP-1 protein levels and affected phagocytic activity in ARPE19 cells. In primary culture of human RPE isolated from eyes of AMD donors (AMD RPE), miR-184 was significantly downregulated compared with control (normal) RPE. Downregulation of miR-184 was consistent with significantly lower levels of LAMP-1 protein in AMD RPE, and overexpression of MIR-184 in AMD RPE was able to rescue LAMP-1 protein expression to normal levels. Altogether, these observations suggest a novel role for miR-184 in RPE health and support a model proposing that downregulation of miR-184 expression during aging may result in dysregulation of RPE function, contributing to retinal degeneration.
Collapse
Affiliation(s)
- Najiba Murad
- Department of Biochemistry and Molecular and Cellular Biology, Georgetown University Medical Center, Washington, DC, USA
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Ghaffari A, Hoskin V, Szeto A, Hum M, Liaghati N, Nakatsu K, LeBrun D, Madarnas Y, Sengupta S, Elliott BE. A novel role for ezrin in breast cancer angio/lymphangiogenesis. Breast Cancer Res 2014; 16:438. [PMID: 25231728 PMCID: PMC4303119 DOI: 10.1186/s13058-014-0438-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Accepted: 09/01/2014] [Indexed: 01/08/2023] Open
Abstract
INTRODUCTION Recent evidence suggests that tumour lymphangiogenesis promotes lymph node metastasis, a major prognostic factor for survival of breast cancer patients. However, signaling mechanisms involved in tumour-induced lymphangiogenesis remain poorly understood. The expression of ezrin, a membrane cytoskeletal crosslinker and Src substrate, correlates with poor outcome in a diversity of cancers including breast. Furthermore, ezrin is essential in experimental invasion and metastasis models of breast cancer. Ezrin acts cooperatively with Src in the regulation of the Src-induced malignant phenotype and metastasis. However, it remains unclear if ezrin plays a role in Src-induced tumour angio/lymphangiogenesis. METHODS The effects of ezrin knockdown and mutation on angio/lymphangiogenic potential of human MDA-MB-231 and mouse AC2M2 mammary carcinoma cell lines were examined in the presence of constitutively active or wild-type (WT) Src. In vitro assays using primary human lymphatic endothelial cells (hLEC), an ex vivo aortic ring assay, and in vivo tumour engraftment were utilized to assess angio/lymphangiogenic activity of cancer cells. RESULTS Ezrin-deficient cells expressing activated Src displayed significant reduction in endothelial cell branching in the aortic ring assay in addition to reduced hLEC migration, tube formation, and permeability compared to the controls. Intravital imaging and microvessel density (MVD) analysis of tumour xenografts revealed significant reductions in tumour-induced angio/lymphangiogenesis in ezrin-deficient cells when compared to the WT or activated Src-expressing cells. Moreover, syngeneic tumours derived from ezrin-deficient or Y477F ezrin-expressing (non-phosphorylatable by Src) AC2M2 cells further confirmed the xenograft results. Immunoblotting analysis provided a link between ezrin expression and a key angio/lymphangiogenesis signaling pathway by revealing that ezrin regulates Stat3 activation, VEGF-A/-C and IL-6 expression in breast cancer cell lines. Furthermore, high expression of ezrin in human breast tumours significantly correlated with elevated Src expression and the presence of lymphovascular invasion. CONCLUSIONS The results describe a novel function for ezrin in the regulation of tumour-induced angio/lymphangiogenesis promoted by Src in breast cancer. The combination of Src/ezrin might prove to be a beneficial prognostic/predictive biomarker for early-stage metastatic breast cancer.
Collapse
|
19
|
CHEN MIAOJUAN, GAO XUEJUAN, XU LINA, LIU TENGFEI, LIU XIAOHUI, LIU LANGXIA. Ezrin is required for epithelial-mesenchymal transition induced by TGF-β1 in A549 cells. Int J Oncol 2014; 45:1515-22. [DOI: 10.3892/ijo.2014.2554] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Accepted: 07/02/2014] [Indexed: 11/05/2022] Open
|
20
|
Zhang H, Wan J, Huang L. WITHDRAWN: TRIP-1 interacts with ezrin to regulate ezrin phosphorylation, cell protrusion formation and cell migration. Cell Signal 2013:S0898-6568(13)00262-3. [PMID: 24012495 DOI: 10.1016/j.cellsig.2013.08.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 08/08/2013] [Accepted: 08/27/2013] [Indexed: 10/26/2022]
Abstract
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
Collapse
Affiliation(s)
- Hongling Zhang
- School of Life Sciences, Tsinghua University, Beijing 100084, China; The Shenzhen Key Laboratory of Gene & Antibody Therapy, State Key Laboratory of Health Science & Technology (prep), Center for Biotechnology & BioMedicine and Division of Life & Health Sciences, Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong 518055, China
| | - Jun Wan
- School of Life Sciences, Tsinghua University, Beijing 100084, China; The Shenzhen Key Laboratory of Gene & Antibody Therapy, State Key Laboratory of Health Science & Technology (prep), Center for Biotechnology & BioMedicine and Division of Life & Health Sciences, Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong 518055, China
| | - Laiqiang Huang
- School of Life Sciences, Tsinghua University, Beijing 100084, China; The Shenzhen Key Laboratory of Gene & Antibody Therapy, State Key Laboratory of Health Science & Technology (prep), Center for Biotechnology & BioMedicine and Division of Life & Health Sciences, Graduate School at Shenzhen, Tsinghua University, Shenzhen, Guangdong 518055, China.
| |
Collapse
|
21
|
Solaymani-Mohammadi S, Singer SM. Regulation of intestinal epithelial cell cytoskeletal remodeling by cellular immunity following gut infection. Mucosal Immunol 2013; 6:369-78. [PMID: 22910215 PMCID: PMC4094376 DOI: 10.1038/mi.2012.80] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Gut infections often lead to epithelial cell damage followed by a healing response. We examined changes in the epithelial cell cytoskeleton and the involvement of host adaptive immunity in these events using an in vivo model of parasitic infection. We found that both ezrin and villin, key components of the actin cytoskeleton comprising the brush border (BB) of intestinal epithelial cells (IECs), underwent significant post-translational changes following gut infection and during the recovery phase of gut infection. Intriguingly, using mice lacking either CD4(+) or CD8(+) T-cell responses, we demonstrated that the mechanisms by which ezrin and villin are regulated in response to infection are different. Both ezrin and villin undergo proteolysis during the recovery phase of infection. Cleavage of ezrin requires CD4(+) but not CD8(+) T cells, whereas cleavage of villin requires both CD4(+) and CD8(+) T-cell responses. Both proteins were also regulated by phosphorylation; reduced levels of phosphorylated ezrin and increased levels of villin phosphorylation were observed at the peak of infection and correlated with reduced BB enzyme activity. Finally, we show that infection also leads to enhanced proliferation of IECs in this model. Cytoskeletal remodeling in IECs can have critical roles in the immunopathology and healing responses observed during many infectious and non-infectious intestinal conditions. These data indicate that cellular immune responses can be significant drivers of these processes.
Collapse
Affiliation(s)
- Shahram Solaymani-Mohammadi
- Department of Biology and Center for Infectious Disease, Georgetown University, Washington, DC, 20057, USA,Correspondence should be addressed to Shahram Solaymani-Mohammadi or Steven M. Singer, Mailing address: Shahram Solaymani-Mohammadi, University of California, San Diego, 9500 Gilman Drive, Mail Code 0623D, La Jolla CA 92093-0623 USA; Phone (858)534-4625; Fax: 858-534-5691; ; Steven M. Singer, Georgetown University, 406 Reiss Building, 37th and O Streets, NW, Washington, DC 20057 USA; Phone (202)-687-9884; Fax: (202)-687-5662;
| | - Steven M. Singer
- Department of Biology and Center for Infectious Disease, Georgetown University, Washington, DC, 20057, USA,Correspondence should be addressed to Shahram Solaymani-Mohammadi or Steven M. Singer, Mailing address: Shahram Solaymani-Mohammadi, University of California, San Diego, 9500 Gilman Drive, Mail Code 0623D, La Jolla CA 92093-0623 USA; Phone (858)534-4625; Fax: 858-534-5691; ; Steven M. Singer, Georgetown University, 406 Reiss Building, 37th and O Streets, NW, Washington, DC 20057 USA; Phone (202)-687-9884; Fax: (202)-687-5662;
| |
Collapse
|
22
|
Wu M, Liu DY, Yuan XR, Liu Q, Jiang XJ, Yuan D, Huang J, Li XJ, Yang ZQ. The expression of moesin in astrocytoma: correlation with pathologic grade and poor clinical outcome. Med Oncol 2013; 30:372. [DOI: 10.1007/s12032-012-0372-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Accepted: 09/13/2012] [Indexed: 10/27/2022]
|
23
|
Li Q, Gao H, Xu H, Wang X, Pan Y, Hao F, Qiu X, Stoecker M, Wang E, Wang E. Expression of ezrin correlates with malignant phenotype of lung cancer, and in vitro knockdown of ezrin reverses the aggressive biological behavior of lung cancer cells. Tumour Biol 2012; 33:1493-504. [PMID: 22528947 DOI: 10.1007/s13277-012-0400-9] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Accepted: 04/03/2012] [Indexed: 02/02/2023] Open
Abstract
Ezrin, one of the ezrin-radixin-moesin proteins, is involved in the formation of cell membrane processes such as lamellipodia and filopodia and acts as a membrane-cytoskeleton linker. Its aberrant expression correlates with development and progression of several human cancers. However, the expression of ezrin and its role in lung cancer are currently unknown. In this study, we performed ezrin small interfering RNA transfection in two lung cancer cell lines and examined the effects on malignant phenotypes in cancer cells by using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide, wound healing, and chamber transwell assays. Ezrin knockdown significantly reduced the proliferation, migration, and invasion of lung cancer cells in vitro. To address the possible mechanisms, we evaluated the expression of adhesion molecules E-cadherin and β-catenin by Western blot and reverse transcriptase-polymerase chain reaction analyses. The results demonstrated that downregulation of ezrin reduced β-catenin and increased E-cadherin at the protein level but had no effects on their mRNA levels, suggesting posttranscriptional regulation of these two adhesion molecules. Immunofluorescence assays revealed that ezrin knockdown restored membranous expression of E-cadherin and decreased cytoplasmic β-catenin in lung cancer cells. In addition, ezrin expression was immunohistochemically evaluated on 135 normal and 183 lung cancer tissues. The expression of ezrin was significantly higher in cancer samples than paired autologous normal lung tissues. In normal bronchial epithelium, ezrin was mainly localized on the apical membrane, while in lung cancers and metastatic foci, ezrin was primarily distributed in cytoplasm. Among lung cancer tissues, expression of ezrin was higher in the invasive front of primary lesions and the highest in lymphatic metastasis. Statistical analysis demonstrated that ezrin expression correlated significantly with lymphatic metastasis and advanced TNM stage. Our data suggest that ezrin may play a crucial role in governing the biological behavior of lung cancer.
Collapse
Affiliation(s)
- Qingchang Li
- Department of Pathology, The First Affiliated Hospital and College of Basic Medical Sciences, China Medical University, Shenyang, 110001, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Mak H, Naba A, Varma S, Schick C, Day A, SenGupta SK, Arpin M, Elliott BE. Ezrin phosphorylation on tyrosine 477 regulates invasion and metastasis of breast cancer cells. BMC Cancer 2012; 12:82. [PMID: 22397367 PMCID: PMC3372425 DOI: 10.1186/1471-2407-12-82] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Accepted: 03/07/2012] [Indexed: 11/11/2022] Open
Abstract
Background The membrane cytoskeletal crosslinker, ezrin, a member of the ERM family of proteins, is frequently over-expressed in human breast cancers, and is required for motility and invasion of epithelial cells. Our group previously showed that ezrin acts co-operatively with the non-receptor tyrosine kinase, Src, in deregulation of cell-cell contacts and scattering of epithelial cells. In particular, ezrin phosphorylation on Y477 by Src is specific to ezrin within the ERM family, and is required for HGF-induced scattering of epithelial cells. We therefore sought to examine the role of Y477 phosphorylation in ezrin on tumor progression. Methods Using a highly metastatic mouse mammary carcinoma cell line (AC2M2), we tested the effect of over-expressing a non-phosphorylatable form of ezrin (Y477F) on invasive colony growth in 3-dimensional Matrigel cultures, and on local invasion and metastasis in an orthotopic engraftment model. Results AC2M2 cells over-expressing Y477F ezrin exhibited delayed migration in vitro, and cohesive round colonies in 3-dimensional Matrigel cultures, compared to control cells that formed invasive colonies with branching chains of cells and numerous actin-rich protrusions. Moreover, over-expression of Y477F ezrin inhibits local tumor invasion in vivo. Whereas orthotopically injected wild type AC2M2 tumor cells were found to infiltrate into the abdominal wall and visceral organs within three weeks, tumors expressing Y477F ezrin remained circumscribed, with little invasion into the surrounding stroma and abdominal wall. Additionally, Y477F ezrin reduces the number of lung metastatic lesions. Conclusions Our study implicates a role of Y477 ezrin, which is phosphorylated by Src, in regulating local invasion and metastasis of breast carcinoma cells, and provides a clinically relevant model for assessing the Src/ezrin pathway as a potential prognostic/predictive marker or treatment target for invasive human breast cancer.
Collapse
Affiliation(s)
- Hannah Mak
- Division of Cancer Biology and Genetics, Cancer Research Institute, Queen's University, Kingston, ON, K7L 3N6, Canada
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Muoio VMF, Shinjo SO, Matushita H, Rosemberg S, Teixeira MJ, Marie SKN. Extraneural metastases in medulloblastoma. ARQUIVOS DE NEURO-PSIQUIATRIA 2011; 69:328-31. [PMID: 21625760 DOI: 10.1590/s0004-282x2011000300012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2010] [Accepted: 10/05/2010] [Indexed: 11/22/2022]
Abstract
Medulloblastoma is the most common childhood malignant tumor of central nervous system, but it may also occur in adults. It presents high invasive growth with spreading of tumor cells into the leptomeningeal space along the neuroaxis early in the course of the disease. Extraneural metastases are rare but frequently lethal, occurring only in 1 to 5% of patients, and are related, in the most of cases, to the presence of ventriculoperitoneal shunt. Here we characterize the clinical profile of five cases of medulloblastoma with systemic spreading of tumor cells, also comparing them to cases already described in the literature.
Collapse
|
26
|
Gao S, Dai Y, Yin M, Ye J, Li G, Yu J. Potential transcriptional regulatory regions exist upstream of the human ezrin gene promoter in esophageal carcinoma cells. Acta Biochim Biophys Sin (Shanghai) 2011; 43:455-64. [PMID: 21628504 DOI: 10.1093/abbs/gmr033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We previously demonstrated that the region -87/+134 of the human ezrin gene (VIL2) exhibited promoter activity in human esophageal carcinoma EC109 cells, and a further upstream region -1324/-890 positively regulated transcription. In this study, to identify the transcriptional regulatory regions upstream of the VIL2 promoter, we cloned VIL2 -1541/-706 segment containing the -1324/-890, and investigated its transcriptional regulatory properties via luciferase assays in transiently transfected cells. In EC109 cells, it was found that VIL2 -1541/-706 possessed promoter and enhancer activities. We also localized transcriptional regulatory regions by fusing 5'- or 3'-deletion segments of VIL2 -1541/-706 to a luciferase reporter. We found that there were three positive and one negative transcriptional regulatory regions within VIL2 -1541/-706 in EC109 cells. When these regions were separately located upstream of the luciferase gene without promoter, or located upstream of the VIL2 promoter or SV40 promoter directing the luciferase gene, only VIL2 -1297/-1186 exhibited considerable promoter and enhancer activities, which were lower than those of -1541/-706. In addition, transient expression of Sp1 increased ezrin expression and the transcriptional activation of VIL2 -1297/-1186. Other three regions, although exhibiting significantly positive or negative transcriptional regulation in deletion experiments, showed a weaker or absent regulation. These data suggested that more than one region upstream of the VIL2 promoter participated in VIL2 transcription, and the VIL2 -1297/-1186, probably as a key transcriptional regulatory region, regulated VIL2 transcription in company with other potential regulatory regions.
Collapse
Affiliation(s)
- Shuying Gao
- Central Laboratory, Shenzhen PKU-HKUST Medical Center, Peking University Shenzhen Hospital, China
| | | | | | | | | | | |
Collapse
|
27
|
Ross SH, Post A, Raaijmakers JH, Verlaan I, Gloerich M, Bos JL. Ezrin is required for efficient Rap1-induced cell spreading. J Cell Sci 2011; 124:1808-18. [PMID: 21540295 DOI: 10.1242/jcs.079830] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The Rap family of small GTPases regulate the adhesion of cells to extracellular matrices. Several Rap-binding proteins have been shown to function as effectors that mediate Rap-induced adhesion. However, little is known regarding the relationships between these effectors, or about other proteins that are downstream of or act in parallel to the effectors. To establish whether an array of effectors was required for Rap-induced cell adhesion and spreading, and to find new components involved in Rap-signal transduction, we performed a small-scale siRNA screen in A549 lung epithelial cells. Of the Rap effectors tested, only Radil blocked Rap-induced spreading. Additionally, we identified a novel role for Ezrin downstream of Rap1. Ezrin was necessary for Rap-induced cell spreading, but not Rap-induced cell adhesion or basal adhesion processes. Furthermore, Ezrin depletion inhibited Rap-induced cell spreading in several cell lines, including primary human umbilical vein endothelial cells. Interestingly, Radixin and Moesin, two proteins with high homology to Ezrin, are not required for Rap-induced cell spreading and cannot compensate for loss of Ezrin to rescue Rap-induced cell spreading. Here, we present a novel function for Ezrin in Rap1-induced cell spreading and evidence of a non-redundant role of an ERM family member.
Collapse
Affiliation(s)
- Sarah H Ross
- Molecular Cancer Research, Centre for Biomedical Genetics and Cancer Genomics Centre, University Medical Centre Utrecht, 3584 CG Utrecht, The Netherlands.
| | | | | | | | | | | |
Collapse
|
28
|
Rodríguez-Ulloa A, Ramos Y, Gil J, Perera Y, Castellanos-Serra L, García Y, Betancourt L, Besada V, González LJ, Fernández-de-Cossio J, Sanchez A, Serrano JM, Farina H, Alonso DF, Acevedo BE, Padrón G, Musacchio A, Perea SE. Proteomic profile regulated by the anticancer peptide CIGB-300 in non-small cell lung cancer (NSCLC) cells. J Proteome Res 2010; 9:5473-83. [PMID: 20804217 DOI: 10.1021/pr100728v] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
CIGB-300 is a proapoptotic peptide-based drug that abrogates the CK2-mediated phosphorylation. This peptide has antineoplastic effect on lung cancer cells in vitro and in vivo. To understand the mechanisms involved on such anticancer activity, the NCI-H125 cell line proteomic profile after short-term incubation (45 min) with CIGB-300 was investigated. As determined by 2-DE or 2D-LC-MS/MS, 137 proteins changed their abundances more than 2-fold in response to the CIGB-300 treatment. The expression levels of proteins related to ribosome biogenesis, metastasis, cell survival and proliferation, apoptosis, and drug resistance were significantly modulated by the presence of CIGB-300. The protein translation process was the most affected (23% of the identified proteins). From the proteome analysis of the NCI-H125 cell line, novel potentialities for CIGB-300 as anticancer agent were evidenced.
Collapse
Affiliation(s)
- Arielis Rodríguez-Ulloa
- Department of Bioinformatics, Center for Genetic Engineering and Biotechnology, Havana, Cuba.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Traenka C, Remke M, Korshunov A, Bender S, Hielscher T, Northcott PA, Witt H, Ryzhova M, Felsberg J, Benner A, Riester S, Scheurlen W, Grunewald TGP, von Deimling A, Kulozik AE, Reifenberger G, Taylor MD, Lichter P, Butt E, Pfister SM. Role of LIM and SH3 protein 1 (LASP1) in the metastatic dissemination of medulloblastoma. Cancer Res 2010; 70:8003-14. [PMID: 20924110 DOI: 10.1158/0008-5472.can-10-0592] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Medulloblastoma is the most common malignant pediatric brain tumor and is one of the leading causes of cancer-related mortality in children. Treatment failure mainly occurs in children harboring metastatic tumors, which typically carry an isochromosome 17 or gain of 17q, a common hallmark of intermediate and high-risk medulloblastoma. Through mRNA expression profiling, we identified LIM and SH3 protein 1 (LASP1) as one of the most upregulated genes on chromosome 17q in tumors with 17q gain. In an independent validation cohort of 101 medulloblastoma samples, the abundance of LASP1 mRNA was significantly associated with 17q gain, metastatic dissemination, and unfavorable outcome. LASP1 protein expression was analyzed by immunohistochemistry in a large cohort of patients (n = 207), and high protein expression levels were found to be strongly correlated with 17q gain, metastatic dissemination, and inferior overall and progression-free survival. In vitro experiments in medulloblastoma cell lines showed a strong reduction of cell migration, increased adhesion, and decreased proliferation upon LASP1 knockdown by small interfering RNA-mediated silencing, further indicating a functional role for LASP1 in the progression and metastatic dissemination of medulloblastoma.
Collapse
Affiliation(s)
- Christopher Traenka
- Institute of Clinical Biochemistry and Pathobiochemistry, University of Wuerzburg, Wuerzburg, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
The evolution and application of techniques in molecular biology to human brain tumors: a 25 year perspective. J Neurooncol 2009; 92:261-73. [PMID: 19357954 DOI: 10.1007/s11060-009-9829-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2008] [Accepted: 02/23/2009] [Indexed: 12/19/2022]
Abstract
Since the establishment of the AANS/CNS Section on Tumors in 1984, neurosurgeons have been actively involved in basic science research of human brain tumors that has moved the field forward considerably. Here, we chronicle the major advances that have been made with respect to our understanding of the concepts guiding the biology of human malignant brain tumors. Numerous technical advances in science, such as the development of gene transfer techniques, the polymerase chain reaction, the discovery of oncogenes and tumor suppressor genes, and the refinement of approaches to cancer cytogenetics have enabled researchers to identify many of the non-random genetic alterations associated with brain tumor growth, invasion, immunology, angiogenesis and apoptosis. These data led to some astounding progress, for example with the use of gene therapy, whereby in the 1990s several human clinical trials were conducted for patients with brain tumors. More recently, the human genome project has been completed providing a blueprint for the human species. What has followed are exciting new techniques in molecular biology such as transcriptional profiling, single nucleotide polymorphism (SNP)-arrays, array comparative genomic hybridization (array-CGH), microRNA profiling, and detection of epigenetic silencing of tumor suppressor genes. The cancer genome is now being sequenced at break neck speed using advanced DNA sequencing techniques. We are on the threshold of cataloguing the major genetic alterations observed in all human brain tumors. What will follow is modeling of these genetic alterations in systems that will allow for the development of novel pharmacotherapeutics and translational research therapies.
Collapse
|