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Parvanian S, Coelho-Rato LS, Patteson AE, Eriksson JE. Vimentin takes a hike - Emerging roles of extracellular vimentin in cancer and wound healing. Curr Opin Cell Biol 2023; 85:102246. [PMID: 37783033 PMCID: PMC11214764 DOI: 10.1016/j.ceb.2023.102246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/28/2023] [Accepted: 09/04/2023] [Indexed: 10/04/2023]
Abstract
Vimentin is a cytoskeletal protein important for many cellular processes, including proliferation, migration, invasion, stress resistance, signaling, and many more. The vimentin-deficient mouse has revealed many of these functions as it has numerous severe phenotypes, many of which are found only following a suitable challenge or stress. While these functions are usually related to vimentin as a major intracellular protein, vimentin is also emerging as an extracellular protein, exposed at the cell surface in an oligomeric form or secreted to the extracellular environment in soluble and vesicle-bound forms. Thus, this review explores the roles of the extracellular pool of vimentin (eVIM), identified in both normal and pathological states. It focuses specifically on the recent advances regarding the role of eVIM in wound healing and cancer. Finally, it discusses new technologies and future perspectives for the clinical application of eVIM.
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Affiliation(s)
- Sepideh Parvanian
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland; Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20520 Turku, Finland; Center for Systems Biology, Massachusetts General Hospital Research Institute and Harvard Medical School, Boston, MA 02114, USA
| | - Leila S Coelho-Rato
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland; Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20520 Turku, Finland
| | - Alison E Patteson
- Physics Department and BioInspired Institute, Syracuse University, Syracuse, NY, 13244, USA
| | - John E Eriksson
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, 20520, Turku, Finland; Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, 20520 Turku, Finland; Euro-Bioimaging ERIC, 20520 Turku, Finland.
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2
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Arrindell J, Desnues B. Vimentin: from a cytoskeletal protein to a critical modulator of immune response and a target for infection. Front Immunol 2023; 14:1224352. [PMID: 37475865 PMCID: PMC10354447 DOI: 10.3389/fimmu.2023.1224352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 06/20/2023] [Indexed: 07/22/2023] Open
Abstract
Vimentin is an intermediate filament protein that plays a role in cell processes, including cell migration, cell shape and plasticity, or organelle anchorage. However, studies from over the last quarter-century revealed that vimentin can be expressed at the cell surface and even secreted and that its implications in cell physiology largely exceed structural and cytoskeletal functions. Consequently, vimentin contributes to several pathophysiological conditions such as cancer, autoimmune and inflammatory diseases, or infection. In this review, we aimed at covering these various roles and highlighting vimentin implications in the immune response. We also provide an overview of how some microbes including bacteria and viruses have acquired the ability to circumvent vimentin functions in order to interfere with host responses and promote their uptake, persistence, and egress from host cells. Lastly, we discuss the therapeutic approaches associated with vimentin targeting, leading to several beneficial effects such as preventing infection, limiting inflammatory responses, or the progression of cancerous events.
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Affiliation(s)
- Jeffrey Arrindell
- Aix Marseille Univ, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Microbes Evolution Phylogeny and Infections (MEPHI), Marseille, France
- Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, Marseille, France
| | - Benoit Desnues
- Aix Marseille Univ, Institut de Recherche pour le Développement (IRD), Assistance Publique-Hôpitaux de Marseille (AP-HM), Microbes Evolution Phylogeny and Infections (MEPHI), Marseille, France
- Institut Hospitalo-Universitaire (IHU)-Méditerranée Infection, Marseille, France
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3
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Rassek K, Iżykowska K, Żurawek M, Nowicka K, Joks M, Olek-Hrab K, Olszewska B, Sokołowska-Wojdyło M, Biernat W, Nowicki RJ, Przybylski GK. TMEM244 Gene Expression as a Potential Blood Diagnostic Marker Distinguishing Sézary Syndrome from Mycosis Fungoides and Benign Erythroderma. J Invest Dermatol 2023; 143:344-347.e3. [PMID: 36087622 DOI: 10.1016/j.jid.2022.08.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/11/2022] [Accepted: 08/11/2022] [Indexed: 01/27/2023]
Affiliation(s)
- Karolina Rassek
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
| | | | - Magdalena Żurawek
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
| | - Karina Nowicka
- Institute of Human Genetics, Polish Academy of Sciences, Poznan, Poland
| | - Monika Joks
- Department of Hematology and Marrow Transplantation, Poznan University of Medical Sciences, Poznan, Poland
| | - Karolina Olek-Hrab
- Department of Dermatology, Poznan University of Medical Sciences, Poznan, Poland
| | - Berenika Olszewska
- Department of Dermatology, Venereology and Allergology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Małgorzata Sokołowska-Wojdyło
- Department of Dermatology, Venereology and Allergology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Wojciech Biernat
- Department of Pathomorphology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
| | - Roman J Nowicki
- Department of Dermatology, Venereology and Allergology, Faculty of Medicine, Medical University of Gdansk, Gdansk, Poland
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Lalioti V, González-Sanz S, Lois-Bermejo I, González-Jiménez P, Viedma-Poyatos Á, Merino A, Pajares MA, Pérez-Sala D. Cell surface detection of vimentin, ACE2 and SARS-CoV-2 Spike proteins reveals selective colocalization at primary cilia. Sci Rep 2022; 12:7063. [PMID: 35487944 PMCID: PMC9052736 DOI: 10.1038/s41598-022-11248-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 04/04/2022] [Indexed: 12/24/2022] Open
Abstract
The SARS-CoV-2 Spike protein mediates docking of the virus onto cells prior to viral invasion. Several cellular receptors facilitate SARS-CoV-2 Spike docking at the cell surface, of which ACE2 plays a key role in many cell types. The intermediate filament protein vimentin has been reported to be present at the surface of certain cells and act as a co-receptor for several viruses; furthermore, its potential involvement in interactions with Spike proteins has been proposed. Nevertheless, the potential colocalization of vimentin with Spike and its receptors on the cell surface has not been explored. Here we have assessed the binding of Spike protein constructs to several cell types. Incubation of cells with tagged Spike S or Spike S1 subunit led to discrete dotted patterns at the cell surface, which consistently colocalized with endogenous ACE2, but sparsely with a lipid raft marker. Vimentin immunoreactivity mostly appeared as spots or patches unevenly distributed at the surface of diverse cell types. Of note, vimentin could also be detected in extracellular particles and in the cytoplasm underlying areas of compromised plasma membrane. Interestingly, although overall colocalization of vimentin-positive spots with ACE2 or Spike was moderate, a selective enrichment of the three proteins was detected at elongated structures, positive for acetylated tubulin and ARL13B. These structures, consistent with primary cilia, concentrated Spike binding at the top of the cells. Our results suggest that a vimentin-Spike interaction could occur at selective locations of the cell surface, including ciliated structures, which can act as platforms for SARS-CoV-2 docking.
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Affiliation(s)
- Vasiliki Lalioti
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Ramiro de Maeztu, 9, 28040, Madrid, Spain
| | - Silvia González-Sanz
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Ramiro de Maeztu, 9, 28040, Madrid, Spain
| | - Irene Lois-Bermejo
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Ramiro de Maeztu, 9, 28040, Madrid, Spain
| | - Patricia González-Jiménez
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Ramiro de Maeztu, 9, 28040, Madrid, Spain
| | - Álvaro Viedma-Poyatos
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Ramiro de Maeztu, 9, 28040, Madrid, Spain
| | - Andrea Merino
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Ramiro de Maeztu, 9, 28040, Madrid, Spain
| | - María A Pajares
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Ramiro de Maeztu, 9, 28040, Madrid, Spain
| | - Dolores Pérez-Sala
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Ramiro de Maeztu, 9, 28040, Madrid, Spain.
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5
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Vermeer MH, Moins-Teisserenc H, Bagot M, Quaglino P, Whittaker S. Flow cytometry for the assessment of blood tumour burden in cutaneous T-cell lymphoma: towards a standardised approach. Br J Dermatol 2022; 187:21-28. [PMID: 35157307 PMCID: PMC9541328 DOI: 10.1111/bjd.21053] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/28/2022] [Accepted: 02/09/2022] [Indexed: 11/30/2022]
Abstract
Mycosis fungoides (MF) and Sézary syndrome (SS) are the best-studied subtypes of cutaneous T-cell lymphoma, a rare non-Hodgkin lymphoma that primarily presents in the skin but can also involve blood, lymph nodes, and viscera. The role of blood involvement in the assessment and staging of MF and SS has evolved in recent years from being classed as simply 'present' or 'absent', with no impact on staging, to full analysis of abnormal peripheral-blood T cells using flow cytometry (FC) to detect and quantify aberrant T-cell phenotypes and polymerase chain reaction (PCR) to characterise T-cell receptor gene rearrangements. These sensitive peripheral-blood assessments are replacing manual Sézary cell counts and have become an important part of clinical work-up in MF and SS, providing the potential for more accurate prognostication and appropriate management. However, although international recommendations now include guidelines for FC analysis of peripheral-blood markers for staging purposes, many clinics only perform these analyses in advanced-stage patients, if at all, and there is still a need for standardised use of validated markers. Standardisation of a single effective multiparameter FC panel would allow for accurate identification and quantification of blood tumour burden for diagnosis, staging, assessment of therapeutic response, and monitoring of disease progression at all stages of disease. Once defined, validation of an MF/SS biomarker FC panel will enable uptake into clinical settings along with associated standardisation of protocols and reagents. This review discusses the evolution of the role of FC in evaluating blood involvement in MF and SS, considers recently published international guidelines, and identifies evidence gaps for future research that will allow for standardisation of FC in MF and SS.
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Affiliation(s)
- Maarten H Vermeer
- Dermatology Department, Leiden University Medical Center, Leiden, the Netherlands
| | - Helene Moins-Teisserenc
- Université de Paris, Institut de Recherche Saint Louis, INSERM UMR1160, Paris, France.,Hematology Laboratory, AP-, HP, Hôpital Saint Louis, Paris, France
| | - Martine Bagot
- Université de Paris, Institut de Recherche Saint Louis, INSERM UMRS976, Onco-Dermatology and Therapies, Paris, France.,Département de Dermatologie, AP-, HP, Hôpital Saint Louis, Paris, France
| | - Pietro Quaglino
- Dermatologic Clinic, Department of Medical Sciences, University of Turin Medical School, Turin, Italy
| | - Sean Whittaker
- St. John's Institute of Dermatology, School of Basic and Medical Biosciences, King's College London, Guy's Hospital, London, SE1 9RT, UK
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6
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Vimentin: Regulation and pathogenesis. Biochimie 2022; 197:96-112. [DOI: 10.1016/j.biochi.2022.02.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 01/11/2022] [Accepted: 02/09/2022] [Indexed: 12/18/2022]
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Suprewicz Ł, Swoger M, Gupta S, Piktel E, Byfield FJ, Iwamoto DV, Germann D, Reszeć J, Marcińczyk N, Carroll RJ, Janmey PA, Schwarz JM, Bucki R, Patteson AE. Extracellular Vimentin as a Target Against SARS-CoV-2 Host Cell Invasion. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105640. [PMID: 34866333 PMCID: PMC9252327 DOI: 10.1002/smll.202105640] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/29/2021] [Indexed: 05/07/2023]
Abstract
Infection of human cells by pathogens, including SARS-CoV-2, typically proceeds by cell surface binding to a crucial receptor. The primary receptor for SARS-CoV-2 is the angiotensin-converting enzyme 2 (ACE2), yet new studies reveal the importance of additional extracellular co-receptors that mediate binding and host cell invasion by SARS-CoV-2. Vimentin is an intermediate filament protein that is increasingly recognized as being present on the extracellular surface of a subset of cell types, where it can bind to and facilitate pathogens' cellular uptake. Biophysical and cell infection studies are done to determine whether vimentin might bind SARS-CoV-2 and facilitate its uptake. Dynamic light scattering shows that vimentin binds to pseudovirus coated with the SARS-CoV-2 spike protein, and antibodies against vimentin block in vitro SARS-CoV-2 pseudovirus infection of ACE2-expressing cells. The results are consistent with a model in which extracellular vimentin acts as a co-receptor for SARS-CoV-2 spike protein with a binding affinity less than that of the spike protein with ACE2. Extracellular vimentin may thus serve as a critical component of the SARS-CoV-2 spike protein-ACE2 complex in mediating SARS-CoV-2 cell entry, and vimentin-targeting agents may yield new therapeutic strategies for preventing and slowing SARS-CoV-2 infection.
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Affiliation(s)
- Łukasz Suprewicz
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Poland
| | - Maxx Swoger
- Physics Department and BioInspired Institute, Syracuse University
| | - Sarthak Gupta
- Physics Department and BioInspired Institute, Syracuse University
| | - Ewelina Piktel
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Poland
| | - Fitzroy J. Byfield
- Institute for Medicine and Engineering and Department of Physiology, University of Pennsylvania
| | - Daniel V. Iwamoto
- Institute for Medicine and Engineering and Department of Physiology, University of Pennsylvania
| | - Danielle Germann
- Physics Department and BioInspired Institute, Syracuse University
| | - Joanna Reszeć
- Department of Medical Pathomorphology, Medical University of Białystok, PL-15269 Białystok, Poland
| | - Natalia Marcińczyk
- Department of Biopharmacy, Medical University of Białystok, Białystok, Poland
| | | | - Paul A. Janmey
- Institute for Medicine and Engineering and Department of Physiology, University of Pennsylvania
| | - J. M. Schwarz
- Physics Department and BioInspired Institute, Syracuse University
- Indian Creek Farm, Ithaca, NY
| | - Robert Bucki
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Poland
- Institute for Medicine and Engineering and Department of Physiology, University of Pennsylvania
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Co-Expression of CD34, CD90, OV-6 and Cell-Surface Vimentin Defines Cancer Stem Cells of Hepatoblastoma, Which Are Affected by Hsp90 Inhibitor 17-AAG. Cells 2021; 10:cells10102598. [PMID: 34685577 PMCID: PMC8533921 DOI: 10.3390/cells10102598] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/21/2021] [Accepted: 09/24/2021] [Indexed: 01/01/2023] Open
Abstract
Cancer stem cells (CSCs) are nowadays one of the major focuses in tumor research since this subpopulation was revealed to be a great obstacle for successful treatment. The identification of CSCs in pediatric solid tumors harbors major challenges because of the immature character of these tumors. Here, we present CD34, CD90, OV-6 and cell-surface vimentin (csVimentin) as reliable markers to identify CSCs in hepatoblastoma cell lines. We were able to identify CSC characteristics for the subset of CD34+CD90+OV-6+csVimentin+-co-expressing cells, such as pluripotency, self-renewal, increased expression of EMT markers and migration. Treatment with Cisplatin as the standard chemotherapeutic drug in hepatoblastoma therapy further revealed the chemo-resistance of this subset, which is a main characteristic of CSCs. When we treated the cells with the Hsp90 inhibitor 17-AAG, we observed a significant reduction in the CSC subset. With our study, we identified CSCs of hepatoblastoma using CD34, CD90, OV-6 and csVimentin. This set of markers could be helpful to estimate the success of novel therapeutic approaches, as resistant CSCs are responsible for tumor relapses.
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Korolowicz KE, Suresh M, Li B, Huang X, Yon C, Kallakury BV, Lee KP, Park S, Kim YW, Menne S. Combination Treatment with the Vimentin-Targeting Antibody hzVSF and Tenofovir Suppresses Woodchuck Hepatitis Virus Infection in Woodchucks. Cells 2021; 10:2321. [PMID: 34571970 PMCID: PMC8466705 DOI: 10.3390/cells10092321] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/24/2021] [Accepted: 08/27/2021] [Indexed: 02/07/2023] Open
Abstract
Current treatment options for patients infected with hepatitis B virus (HBV) are suboptimal, because the approved drugs rarely induce cure due to the persistence of the viral DNA genome in the nucleus of infected hepatocytes, and are associated with either severe side effects (pegylated interferon-alpha) or require life-long administration (nucleos(t)ide analogs). We report here the evaluation of the safety and therapeutic efficacy of a novel, humanized antibody (hzVSF) in the woodchuck model of HBV infection. hzVSF has been shown to act as a viral entry inhibitor, most likely by suppressing vimentin-mediated endocytosis of virions. Targeting the increased vimentin expression on liver cells by hzVSF after infection with HBV or woodchuck hepatitis virus (WHV) was demonstrated initially. Thereafter, hzVSF safety was assessed in eight woodchucks naïve for WHV infection. Antiviral efficacy of hzVSF was evaluated subsequently in 24 chronic WHV carrier woodchucks by monotreatment with three ascending doses and in combination with tenofovir alafenamide fumarate (TAF). Consistent with the proposed blocking of WHV reinfection, intravenous hzVSF administration for 12 weeks resulted in a modest but transient reduction of viral replication and associated liver inflammation. In combination with oral TAF dosing, the antiviral effect of hzVSF was enhanced and sustained in half of the woodchucks with an antibody response to viral proteins. Thus, hzVSF safely but modestly alters chronic WHV infection in woodchucks; however, as a combination partner to TAF, its antiviral efficacy is markedly increased. The results of this preclinical study support future evaluation of this novel anti-HBV drug in patients.
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Affiliation(s)
- Kyle E. Korolowicz
- Department of Microbiology & Immunology, Georgetown University Medical Center, Washington, DC 20057, USA; (K.E.K.); (M.S.); (B.L.); (X.H.); (C.Y.)
| | - Manasa Suresh
- Department of Microbiology & Immunology, Georgetown University Medical Center, Washington, DC 20057, USA; (K.E.K.); (M.S.); (B.L.); (X.H.); (C.Y.)
| | - Bin Li
- Department of Microbiology & Immunology, Georgetown University Medical Center, Washington, DC 20057, USA; (K.E.K.); (M.S.); (B.L.); (X.H.); (C.Y.)
| | - Xu Huang
- Department of Microbiology & Immunology, Georgetown University Medical Center, Washington, DC 20057, USA; (K.E.K.); (M.S.); (B.L.); (X.H.); (C.Y.)
| | - Changsuek Yon
- Department of Microbiology & Immunology, Georgetown University Medical Center, Washington, DC 20057, USA; (K.E.K.); (M.S.); (B.L.); (X.H.); (C.Y.)
| | - Bhaskar V. Kallakury
- Department of Pathology, Georgetown University Medical Center, Washington, DC 20057, USA;
| | - Kyoung-pil Lee
- ImmuneMed, Inc., Chuncheon BioTown, Soyanggang ro 32, Chuncheon-si 24232, Gangwon-do, Korea; (K.-p.L.); (S.P.); (Y.-W.K.)
| | - Sungman Park
- ImmuneMed, Inc., Chuncheon BioTown, Soyanggang ro 32, Chuncheon-si 24232, Gangwon-do, Korea; (K.-p.L.); (S.P.); (Y.-W.K.)
| | - Yoon-Won Kim
- ImmuneMed, Inc., Chuncheon BioTown, Soyanggang ro 32, Chuncheon-si 24232, Gangwon-do, Korea; (K.-p.L.); (S.P.); (Y.-W.K.)
| | - Stephan Menne
- Department of Microbiology & Immunology, Georgetown University Medical Center, Washington, DC 20057, USA; (K.E.K.); (M.S.); (B.L.); (X.H.); (C.Y.)
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10
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Vimentin as a Cap of Invisibility: Proposed Role of Vimentin in Rabbit Hemorrhagic Disease Virus (RHDV) Infection. Viruses 2021; 13:v13071416. [PMID: 34372621 PMCID: PMC8310380 DOI: 10.3390/v13071416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/15/2021] [Accepted: 07/19/2021] [Indexed: 11/24/2022] Open
Abstract
Vimentin is an intermediate filament, a cytoskeleton protein expressed mainly in cells of mesenchymal origin. Increasing evidence indicates that vimentin could play a key role in viral infections. Therefore, changes in tissue and extracellular vimentin expression and associated signal trails may determine/protect the fate of cells and the progression of disease caused by viral infection. Rabbit hemorrhagic disease virus (RHDV), genotype GI.1, is an etiological agent that causes a severe and highly lethal disease—RHD (rabbit hemorrhagic disease). This article evaluates the gene and protein expression of vimentin in the tissues (liver, lungs, spleen, and kidneys) and serum of rabbits experimentally infected with two RHDV variants (GI.1a). The VIM mRNA expression levels in the tissues were determined using reverse transcription quantitative real-time PCR (RT-qPCR). In addition, the amount of vimentin protein in the serum was analyzed by an ELISA test. We observed significantly elevated expression levels of VIM mRNA and protein in the liver and kidney tissues of infected rather than healthy rabbits. In addition, VIM mRNA expression was increased in the lung tissues; meanwhile, we observed only protein-enhanced vimentin in the spleen. The obtained results are significant and promising, as they indicate the role of vimentin in RHDV infection and the course of RHD. The role of vimentin in RHDV infection could potentially rely on the one hand, on creating a cap of invisibility against the intracellular viral spread, or, on the other hand, after the damage of cells, vimentin could act as a signal of tissue damage.
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11
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Suprewicz Ł, Swoger M, Gupta S, Piktel E, Byfield FJ, Iwamoto DV, Germann D, Reszeć J, Marcińczyk N, Carroll RJ, Lenart M, Pyre K, Janmey P, Schwarz JM, Bucki R, Patteson A. Extracellular vimentin as a target against SARS-CoV-2 host cell invasion. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2021:2021.01.08.425793. [PMID: 33442680 PMCID: PMC7805437 DOI: 10.1101/2021.01.08.425793] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Infection of human cells by pathogens, including SARS-CoV-2, typically proceeds by cell surface binding to a crucial receptor. In the case of SARS-CoV-2, angiotensin-converting enzyme 2 (ACE2) has been identified as a necessary receptor, but not all ACE2-expressing cells are equally infected, suggesting that other extracellular factors are involved in host cell invasion by SARS-CoV-2. Vimentin is an intermediate filament protein that is increasingly recognized as being present on the extracellular surface of a subset of cell types, where it can bind to and facilitate pathogens' cellular uptake. Here, we present evidence that extracellular vimentin might act as a critical component of the SARS-CoV-2 spike protein-ACE2 complex in mediating SARS-CoV-2 cell entry. We demonstrate direct binding between vimentin and SARS-CoV-2 pseudovirus coated with the SARS-CoV-2 spike protein and show that antibodies against vimentin block in vitro SARS-CoV-2 pseudovirus infection of ACE2-expressing cells. Our results suggest new therapeutic strategies for preventing and slowing SARS-CoV-2 infection, focusing on targeting cell host surface vimentin.
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Affiliation(s)
- Łukasz Suprewicz
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Poland
| | - Maxx Swoger
- Physics Department and BioInspired Institute, Syracuse University
| | - Sarthak Gupta
- Physics Department and BioInspired Institute, Syracuse University
| | - Ewelina Piktel
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Poland
| | - Fitzroy J Byfield
- Institute for Medicine and Engineering and Department of Physiology, University of Pennsylvania
| | - Daniel V Iwamoto
- Institute for Medicine and Engineering and Department of Physiology, University of Pennsylvania
| | - Danielle Germann
- Physics Department and BioInspired Institute, Syracuse University
| | - Joanna Reszeć
- Department of Medical Pathomorphology, Medical University of Białystok, PL-15269 Białystok, Poland
| | - Natalia Marcińczyk
- Department of Biopharmacy, Medical University of Białystok, Białystok, Poland
| | - Robert J Carroll
- Physics Department and BioInspired Institute, Syracuse University
| | - Marzena Lenart
- Małopolska Centre of Biotechnology; Jagiellonian University; Kraków, Poland
| | - Krzysztof Pyre
- Małopolska Centre of Biotechnology; Jagiellonian University; Kraków, Poland
| | - Paul Janmey
- Institute for Medicine and Engineering and Department of Physiology, University of Pennsylvania
| | - J M Schwarz
- Physics Department and BioInspired Institute, Syracuse University
- Indian Creek Farm, Ithaca, NY
| | - Robert Bucki
- Department of Medical Microbiology and Nanobiomedical Engineering, Medical University of Białystok, Poland
- Institute for Medicine and Engineering and Department of Physiology, University of Pennsylvania
| | - Alison Patteson
- Physics Department and BioInspired Institute, Syracuse University
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Durgin JS, Weiner DM, Wysocka M, Rook AH. The immunopathogenesis and immunotherapy of cutaneous T cell lymphoma: Pathways and targets for immune restoration and tumor eradication. J Am Acad Dermatol 2021; 84:587-595. [PMID: 33352267 PMCID: PMC7897252 DOI: 10.1016/j.jaad.2020.12.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 11/27/2022]
Abstract
Cutaneous T cell lymphomas (CTCLs) are malignancies of skin-trafficking T cells. Patients with advanced CTCL manifest immune dysfunction that predisposes to infection and suppresses the antitumor immune response. Therapies that stimulate immunity have produced superior progression-free survival compared with conventional chemotherapy, reinforcing the importance of addressing the immune deficient state in the care of patients with CTCL. Recent research has better defined the pathogenesis of these immune deficits, explaining the mechanisms of disease progression and revealing potential therapeutic targets. The features of the malignant cell in mycosis fungoides and Sézary syndrome are now significantly better understood, including the T helper 2 cell phenotype, regulatory T cell cytokine production, immune checkpoint molecule expression, chemokine receptors, and interactions with the microenvironment. The updated model of CTCL immunopathogenesis provides understanding into clinical progression and therapeutic response.
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Affiliation(s)
- Joseph S Durgin
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - David M Weiner
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Maria Wysocka
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Alain H Rook
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
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13
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Patteson AE, Vahabikashi A, Goldman RD, Janmey PA. Mechanical and Non-Mechanical Functions of Filamentous and Non-Filamentous Vimentin. Bioessays 2020; 42:e2000078. [PMID: 32893352 PMCID: PMC8349470 DOI: 10.1002/bies.202000078] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 08/04/2020] [Indexed: 12/20/2022]
Abstract
Intermediate filaments (IFs) formed by vimentin are less understood than their cytoskeletal partners, microtubules and F-actin, but the unique physical properties of IFs, especially their resistance to large deformations, initially suggest a mechanical function. Indeed, vimentin IFs help regulate cell mechanics and contractility, and in crowded 3D environments they protect the nucleus during cell migration. Recently, a multitude of studies, often using genetic or proteomic screenings show that vimentin has many non-mechanical functions within and outside of cells. These include signaling roles in wound healing, lipogenesis, sterol processing, and various functions related to extracellular and cell surface vimentin. Extracellular vimentin is implicated in marking circulating tumor cells, promoting neural repair, and mediating the invasion of host cells by viruses, including SARS-CoV, or bacteria such as Listeria and Streptococcus. These findings underscore the fundamental role of vimentin in not only cell mechanics but also a range of physiological functions. Also see the video abstract here https://youtu.be/YPfoddqvz-g.
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Affiliation(s)
- Alison E Patteson
- Physics Department, Syracuse University, Syracuse, NY 13244
- BioInspired Institute, Syracuse University, Syracuse, NY 13244
| | - Amir Vahabikashi
- Department of Cell and Molecular Biology, Feinberg School of Medicine, Northwestern University, Chicago IL 60611
| | - Robert D Goldman
- Department of Cell and Molecular Biology, Feinberg School of Medicine, Northwestern University, Chicago IL 60611
| | - Paul A. Janmey
- Institute for Medicine and Engineering, Department of Physiology, University of Pennsylvania, Philadelphia, PA 19104
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14
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Ramos I, Stamatakis K, Oeste CL, Pérez-Sala D. Vimentin as a Multifaceted Player and Potential Therapeutic Target in Viral Infections. Int J Mol Sci 2020; 21:E4675. [PMID: 32630064 PMCID: PMC7370124 DOI: 10.3390/ijms21134675] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 06/28/2020] [Accepted: 06/29/2020] [Indexed: 12/17/2022] Open
Abstract
Vimentin is an intermediate filament protein that plays key roles in integration of cytoskeletal functions, and therefore in basic cellular processes such as cell division and migration. Consequently, vimentin has complex implications in pathophysiology. Vimentin is required for a proper immune response, but it can also act as an autoantigen in autoimmune diseases or as a damage signal. Although vimentin is a predominantly cytoplasmic protein, it can also appear at extracellular locations, either in a secreted form or at the surface of numerous cell types, often in relation to cell activation, inflammation, injury or senescence. Cell surface targeting of vimentin appears to associate with the occurrence of certain posttranslational modifications, such as phosphorylation and/or oxidative damage. At the cell surface, vimentin can act as a receptor for bacterial and viral pathogens. Indeed, vimentin has been shown to play important roles in virus attachment and entry of severe acute respiratory syndrome-related coronavirus (SARS-CoV), dengue and encephalitis viruses, among others. Moreover, the presence of vimentin in specific virus-targeted cells and its induction by proinflammatory cytokines and tissue damage contribute to its implication in viral infection. Here, we recapitulate some of the pathophysiological implications of vimentin, including the involvement of cell surface vimentin in interaction with pathogens, with a special focus on its role as a cellular receptor or co-receptor for viruses. In addition, we provide a perspective on approaches to target vimentin, including antibodies or chemical agents that could modulate these interactions to potentially interfere with viral pathogenesis, which could be useful when multi-target antiviral strategies are needed.
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Affiliation(s)
- Irene Ramos
- Department of Neurology and Center for Advanced Research on Diagnostic Assays, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
| | - Konstantinos Stamatakis
- Centro de Biología Molecular Severo Ochoa, UAM-CSIC. Nicolás Cabrera, 1, Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain; (K.S.); (C.L.O.)
| | - Clara L. Oeste
- Centro de Biología Molecular Severo Ochoa, UAM-CSIC. Nicolás Cabrera, 1, Campus de la Universidad Autónoma de Madrid, 28049 Madrid, Spain; (K.S.); (C.L.O.)
| | - Dolores Pérez-Sala
- Department of Structural and Chemical Biology, Centro de Investigaciones Biológicas Margarita Salas, CSIC, Ramiro de Maeztu, 9, 28040 Madrid, Spain
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15
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Batth IS, Li S. Discovery of Cell-Surface Vimentin (CSV) as a Sarcoma Target and Development of CSV-Targeted IL12 Immune Therapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1257:169-178. [PMID: 32483739 DOI: 10.1007/978-3-030-43032-0_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
This chapter discusses a novel target of osteosarcoma (OS), cell-surface vimentin (CSV), and a novel generation of interleukin-12 (IL12), CSV-targeted IL12, for treating OS tumor metastasis. Vimentin is a known intracellular structural protein for mesenchymal cells but is also documented in tumor cells. Our recent study definitively revealed that vimentin can be translocated to the surface of very aggressive tumor cells, such as metastatic cells. This CSV property allows investigators to capture circulating tumor cells (CTCs) across any type of tumor, including OS. CTCs are known as the seeds of metastasis; therefore, targeting these cells using CSV is a logical approach for use in a metastatic OS setting. Interestingly, we found that the peptide VNTANST can bind to CSV when fused to the p40 subunit encoding the DNA of IL12. Systemic delivery of this CSV-targeted IL12 immune therapy inhibited OS metastasis and relapse in a mouse tumor model as detailed in this chapter. This CSV-targeted delivery of IL12 also reduced toxicity of IL12. In summary, this chapter details a novel approach for safe IL12 immune therapy via targeting CSV.
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Affiliation(s)
- Izhar S Batth
- The University of Texas MD Anderson Cancer Center, Department of Pediatrics - Research, Houston, TX, USA
| | - Shulin Li
- The University of Texas MD Anderson Cancer Center, Department of Pediatrics - Research, Houston, TX, USA.
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16
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Kinloch AJ, Cascino MD, Dai J, Bermea RS, Ko K, Vesselits M, Dragone LL, Mor Vaknin N, Legendre M, Markovitz DM, Okoreeh MK, Townsend MJ, Clark MR. Anti-vimentin antibodies: a unique antibody class associated with therapy-resistant lupus nephritis. Lupus 2020; 29:569-577. [PMID: 32216516 DOI: 10.1177/0961203320913606] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background Tubulointerstitial inflammation (TII) in lupus nephritis is associated with a worse prognosis. Vimentin, a filamental antigen, is commonly targeted by in situ activated B-cells in TII. The prognostic importance of high serum anti-vimentin antibodies (AVAs) in lupus nephritis and their relationship with common lupus autoantibody specificities is unknown. Herein we investigated associations between AVA isotypes, other autoantibodies, and response to mycophenolate mofetil (MMF) in the presence or absence of rituximab. Methods The Translational Research Initiative in the Department of Medicine (TRIDOM) cross-sectional cohort of 99 lupus patients was assayed for IgG-, IgA- and IgM- AVAs, lupus-associated and rheumatoid arthritis-associated antibodies, and hierarchically clustered. Serum from baseline, 26 and 52 weeks from 132 Lupus Nephritis Assessment with Rituximab (LUNAR) trial enrolled lupus nephritis patients was also analysed and correlated with renal function up to week 78. Results In TRIDOM, AVAs, especially IgM AVAs, clustered with IgG anti-dsDNA and away from anti-Sm and -RNP and rheumatoid arthritis-associated antibodies. In LUNAR at baseline, AVAs correlated weakly with anti-dsDNA and more strongly with anticardiolipin titers. Regardless of treatment, IgG-, but not IgM- or IgA-, AVAs were higher at week 52 than at baseline. In contrast, anti-dsDNA titers declined, regardless of therapeutic regime. High IgG AVA titers at entry predicted less response to therapy. Conclusion AVAs, especially IgG AVAs, are unique in distribution and response to therapy compared with other commonly measured autoantibody specificities. Furthermore, high-titer IgG AVAs identify lupus nephritis patients resistant to conventional therapies. These data suggest that AVAs represent an independent class of prognostic autoantibodies.
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Affiliation(s)
- Andrew J Kinloch
- Gwen Knapp Center for Lupus and Immunology Research, University of Chicago, Section of Rheumatology and Department of Medicine, Chicago, USA
| | - Matthew D Cascino
- Product Development I20, Genentech Research & Early Development, South San Francisco, USA
| | - Jian Dai
- Early Clinical Development Informatics, Genentech Research & Early Development, South San Francisco, USA
| | - Rene S Bermea
- University of Chicago, Section of Rheumatology and Department of Medicine, Chicago, USA
| | - Kichul Ko
- University of Chicago, Section of Rheumatology and Department of Medicine, Chicago, USA
| | - Margaret Vesselits
- Gwen Knapp Center for Lupus and Immunology Research, University of Chicago, Section of Rheumatology and Department of Medicine, Chicago, USA
| | - Leonard L Dragone
- Early Development, Infectious Disease, The Janssen Pharmaceutical Companies of Johnson & Johnson, South San Francisco, California
| | - Nirit Mor Vaknin
- Department of Internal Medicine, University of Michigan, Ann Arbor, USA
| | - Maureen Legendre
- Department of Internal Medicine, University of Michigan, Ann Arbor, USA
| | - David M Markovitz
- Department of Internal Medicine, University of Michigan, Ann Arbor, USA
| | - Michael K Okoreeh
- Gwen Knapp Center for Lupus and Immunology Research, University of Chicago, Section of Rheumatology and Department of Medicine, Chicago, USA
| | - Michael J Townsend
- Biomarker Discovery OMNI, Genentech Research & Early Development, South San Francisco, USA
| | - Marcus R Clark
- Gwen Knapp Center for Lupus and Immunology Research, University of Chicago, Section of Rheumatology and Department of Medicine, Chicago, USA.,University of Chicago, Section of Rheumatology and Department of Medicine, Chicago, USA
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17
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Nissen NI, Karsdal M, Willumsen N. Post-translational modifications of vimentin reflect different pathological processes associated with non-small cell lung cancer and chronic obstructive pulmonary disease. Oncotarget 2019; 10:6829-6841. [PMID: 31827725 PMCID: PMC6887574 DOI: 10.18632/oncotarget.27332] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/06/2019] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION Vimentin has shown to be highly implicated in cancer initiation and progression. Vimentin is often a target of post-translational modifications (PTMs) which can be disease specific, thus targeting these specific modifications can be of high biomarker potential. In this study we set out to evaluate the biological relevance and serum biomarker potential of citrullinated vimentin (VICM) and non-citrullinated vimentin (VIM) in non-small cell lung cancer (NSCLC) and chronic obstructive pulmonary disease (COPD). METHODS A competitive ELISA targeting VIM was developed and quantified in serum from patients with NSCLC and COPD. VIM was compared with levels of VICM in the same indications. RESULTS VIM was significantly increased in NSCLC (n = 100) compared to healthy controls (n = 67) in two independent cohorts (p = 0.0003 and p < 0.0001). Furthermore, VIM was highly increased in late stages of NSCLC (p = 0.001), however VIM was not increased in COPD patients (n = 10). Contrarily, serum levels of VICM was not increased in late stages of NSCLC, but highly elevated in patients with COPD (p < 0.0001). CONCLUSIONS These findings suggest a biomarker potential of VIM in NSCLC. Our findings also indicate that PTMs of vimentin are highly relevant and that targeting these modifications can have differential biomarker potential.
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Affiliation(s)
- Neel Ingemann Nissen
- Biotech Research & Innovation Centre (BRIC), University of Copenhagen, DK-2200 Copenhagen, Denmark.,Nordic Bioscience, Biomarkers and Research, DK-2730 Herlev, Denmark
| | - Morten Karsdal
- Nordic Bioscience, Biomarkers and Research, DK-2730 Herlev, Denmark
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18
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Kinloch AJ, Kaiser Y, Wolfgeher D, Ai J, Eklund A, Clark MR, Grunewald J. In Situ Humoral Immunity to Vimentin in HLA-DRB1*03 + Patients With Pulmonary Sarcoidosis. Front Immunol 2018; 9:1516. [PMID: 30038611 PMCID: PMC6046378 DOI: 10.3389/fimmu.2018.01516] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 06/19/2018] [Indexed: 12/19/2022] Open
Abstract
Vimentin has been implicated in pulmonary sarcoidosis as a T-cell autoantigen, particularly in the context of HLA-DRB1*03, the Vα2.3/Vβ22 T-cell receptor (TCR), and Löfgren’s syndrome. As vimentin is a known antigenic target in B-cell-mediated autoimmunity, we investigated in situ humoral anti-vimentin responses in pulmonary sarcoidosis and their relationship with HLA-DRB1*03. Sarcoid and healthy control (HC) lung biopsies were analyzed by multi-color confocal microscopy for B-cells, T-cells, proliferation, and vimentin, and compared to tonsillectomy tissue. Bronchoalveolar lavage fluid (BALF) and serum from 48 sarcoidosis patients and 15 healthy volunteers were typed for HLA-DRB1*03 and titrated for antibodies to full-length vimentin, vimentin truncations, and total IgG and IgA by ELISA. Presence of extracellular vimentin in BALF was determined by mass spectrometry and T-cell populations measured by flow cytometry. Sarcoid lung samples, especially from HLA-DRB1*03+ patients, contained vimentin-rich tertiary lymphoid structures and corresponding BALF was highly enriched for both IgG and IgA anti-vimentin antibody (AVA) titers. Furthermore, sarcoidosis patient BALF AVA concentrations (expressed as arbitrary units per milligram of total immunoglobulin isotype) correlated with the percentage of CD4+ T-cells expressing the Vα2.3/Vβ22 TCR. BALF antibody reactivity to the vimentin N-terminus was most prominent in HCs, whereas reactivity to the C-terminus (VimC-term) was enriched in the sarcoid lung. Specifically, HLA-DRB1*03+ patient BALF contained higher concentrations of anti-VimC-term antibodies than BALF from both HCs and HLA-DRB1*03− patients. Consistent with the lung as a site of AVA production, the concentration of AVAs in BALF was dramatically higher than in matched serum samples. Overall, there was a poor correlation between BALF and serum AVA concentrations. Together, these studies reveal the presence of linked in situ recognition of vimentin by both T- and B-cells in HLA-DRB1*03+ sarcoidosis patients, associated with a selective humoral immune response to the vimentin C-terminus.
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Affiliation(s)
- Andrew J Kinloch
- Department of Medicine, Section of Rheumatology, Gwen Knapp Center for Lupus and Immunology Research, University of Chicago, Chicago, IL, United States
| | - Ylva Kaiser
- Respiratory Medicine Unit, Department of Medicine, Solna and Center for Molecular Medicine, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Don Wolfgeher
- Proteomics Core Laboratory, Cummings Life Science Center, University of Chicago, Chicago, IL, United States
| | - Junting Ai
- Department of Medicine, Section of Rheumatology, Gwen Knapp Center for Lupus and Immunology Research, University of Chicago, Chicago, IL, United States
| | - Anders Eklund
- Respiratory Medicine Unit, Department of Medicine, Solna and Center for Molecular Medicine, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
| | - Marcus R Clark
- Department of Medicine, Section of Rheumatology, Gwen Knapp Center for Lupus and Immunology Research, University of Chicago, Chicago, IL, United States
| | - Johan Grunewald
- Respiratory Medicine Unit, Department of Medicine, Solna and Center for Molecular Medicine, Karolinska Institutet and Karolinska University Hospital Solna, Stockholm, Sweden
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19
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Discovery of cell surface vimentin targeting mAb for direct disruption of GBM tumor initiating cells. Oncotarget 2018; 7:72021-72032. [PMID: 27713131 PMCID: PMC5342141 DOI: 10.18632/oncotarget.12458] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 09/29/2016] [Indexed: 01/10/2023] Open
Abstract
Intracellular vimentin overexpression has been associated with epithelial–mesenchymal transition, metastasis, invasion, and proliferation, but cell surface vimentin (CSV) is less understood. Furthermore, it remains unknown whether CSV can serve as a therapeutic target in CSV-expressing tumor cells. We found that CSV was present on glioblastoma multiforme (GBM) cancer stem cells and that CSV expression was associated with spheroid formation in those cells. A newly developed monoclonal antibody against CSV, 86C, specifically and significantly induced apoptosis and inhibited spheroid formation in GBM cells in vitro. The addition of 86C to GBM cells in vitro also led to rapid internalization of vimentin and decreased GBM cell viability. These findings were associated with an increase in caspase-3 activity, indicating activation of apoptosis. Finally, treatment with 86C inhibited GBM progression in vivo. In conclusion, CSV-expressing GBM cells have properties of tumor initiating cells, and targeting CSV with the monoclonal antibody 86C is a promising approach in the treatment of GBM.
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20
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Rohrbeck A, Höltje M, Adolf A, Oms E, Hagemann S, Ahnert-Hilger G, Just I. The Rho ADP-ribosylating C3 exoenzyme binds cells via an Arg-Gly-Asp motif. J Biol Chem 2017; 292:17668-17680. [PMID: 28882889 PMCID: PMC5663871 DOI: 10.1074/jbc.m117.798231] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 08/28/2017] [Indexed: 12/11/2022] Open
Abstract
The Rho ADP-ribosylating C3 exoenzyme (C3bot) is a bacterial protein toxin devoid of a cell-binding or -translocation domain. Nevertheless, C3 can efficiently enter intact cells, including neurons, but the mechanism of C3 binding and uptake is not yet understood. Previously, we identified the intermediate filament vimentin as an extracellular membranous interaction partner of C3. However, uptake of C3 into cells still occurs (although reduced) in the absence of vimentin, indicating involvement of an additional host cell receptor. C3 harbors an Arg–Gly–Asp (RGD) motif, which is the major integrin-binding site, present in a variety of integrin ligands. To check whether the RGD motif of C3 is involved in binding to cells, we performed a competition assay with C3 and RGD peptide or with a monoclonal antibody binding to β1-integrin subunit and binding assays in different cell lines, primary neurons, and synaptosomes with C3-RGD mutants. Here, we report that preincubation of cells with the GRGDNP peptide strongly reduced C3 binding to cells. Moreover, mutation of the RGD motif reduced C3 binding to intact cells and also to recombinant vimentin. Anti-integrin antibodies also lowered the C3 binding to cells. Our results indicate that the RGD motif of C3 is at least one essential C3 motif for binding to host cells and that integrin is an additional receptor for C3 besides vimentin.
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Affiliation(s)
- Astrid Rohrbeck
- From the Institute of Toxicology, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover and
| | - Markus Höltje
- the Institute of Integrative Neuroanatomy, Charité-Universitätsmedizin, D-10115 Berlin, Germany
| | - Andrej Adolf
- the Institute of Integrative Neuroanatomy, Charité-Universitätsmedizin, D-10115 Berlin, Germany
| | - Elisabeth Oms
- From the Institute of Toxicology, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover and
| | - Sandra Hagemann
- From the Institute of Toxicology, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover and
| | - Gudrun Ahnert-Hilger
- the Institute of Integrative Neuroanatomy, Charité-Universitätsmedizin, D-10115 Berlin, Germany
| | - Ingo Just
- From the Institute of Toxicology, Hannover Medical School, Carl-Neuberg-Strasse 1, D-30625 Hannover and
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Senescent cells expose and secrete an oxidized form of membrane-bound vimentin as revealed by a natural polyreactive antibody. Proc Natl Acad Sci U S A 2017; 114:E1668-E1677. [PMID: 28193858 DOI: 10.1073/pnas.1614661114] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Studying the phenomenon of cellular senescence has been hindered by the lack of senescence-specific markers. As such, detection of proteins informally associated with senescence accompanies the use of senescence-associated β-galactosidase as a collection of semiselective markers to monitor the presence of senescent cells. To identify novel biomarkers of senescence, we immunized BALB/c mice with senescent mouse lung fibroblasts and screened for antibodies that recognized senescence-associated cell-surface antigens by FACS analysis and a newly developed cell-based ELISA. The majority of antibodies that we isolated, cloned, and sequenced belonged to the IgM isotype of the innate immune system. In-depth characterization of one of these monoclonal, polyreactive natural antibodies, the IgM clone 9H4, revealed its ability to recognize the intermediate filament vimentin. By using 9H4, we observed that senescent primary human fibroblasts express vimentin on their cell surface, and MS analysis revealed a posttranslational modification on cysteine 328 (C328) by the oxidative adduct malondialdehyde (MDA). Moreover, elevated levels of secreted MDA-modified vimentin were detected in the plasma of aged senescence-accelerated mouse prone 8 mice, which are known to have deregulated reactive oxygen species metabolism and accelerated aging. Based on these findings, we hypothesize that humoral innate immunity may recognize senescent cells by the presence of membrane-bound MDA-vimentin, presumably as part of a senescence eradication mechanism that may become impaired with age and result in senescent cell accumulation.
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Dai SY, Gao JJ, Zhao LN, Sun YL, Zhao XH. Cell-surface vimentin based detection of epithelial-mesenchymal transition-like circulating ESCC cells. Shijie Huaren Xiaohua Zazhi 2017; 25:316-325. [DOI: 10.11569/wcjd.v25.i4.316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM to develop a cell-surface vimentin (csVim) based circulating tumor cell (CTC) detection technique for identifying epithelial-mesenchymal transition (EMT)-like CTCs and investigating whether it can be used to assess tumor progression in esophageal squamous cell carcinoma (ESCC) patients.
METHODS Immunofluorescence assay was used to analyze the expression and cell membrane translocation of csVim in KYSE510-PURα cell line and peripheral blood CTCs from ESCC patients. In this study, 30 patients undergoing surgical therapy were recruited. The numbers of CTCs, EMT-like CTCs and white blood cells were counted. The correlation of different CTC subtypes with tumor progression was assessed in ESCC patients.
RESULTS The expression of csVim was significantly increased in KYSE 510-PURα cells. CsVim was mainly located on the cell membrane, and it underwent cell membrane translocation. CTCs with the phenotype of CK8/18/19+, DAPI+ and CD45- were detected in 63.3% (19/30) of patients. EMT-like CTCs with the phenotype of csVim+, CK8/18/19+, DAPI+ and CD45- were detected in 46.7% (14/30) of patients, accounting for 73.7% (14/19) of CTCs. Compared with ESCC patients without lymph node metastasis, the number of EMT-like CTCs in peripheral blood was higher in patients with lymph node metastasis (P = 0.049).
CONCLUSION CTCs in ESCC patients are highly heterogeneous. EMT-like CTCs are related to tumor progression and may be a potential biomarker for lymph node metastases in ESCC. The identification of EMT-like CTCs provides a new approach to estimate tumor progression and prognosis.
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23
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Superficial vimentin mediates DENV-2 infection of vascular endothelial cells. Sci Rep 2016; 6:38372. [PMID: 27910934 PMCID: PMC5133558 DOI: 10.1038/srep38372] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 11/08/2016] [Indexed: 11/25/2022] Open
Abstract
Damage to vascular endothelial cells (VECs) is a critical hallmark of hemorrhagic diseases caused by dengue virus (DENV). However, the precise molecular event involved in DENV binding and infection of VECs has yet to be clarified. In this study, vimentin (55 kDa) was identified to be involved in DENV-2 adsorption into VECs. This protein is located on the surface of VECs and interacts with DENV-2 envelope protein domain III (EDIII). The expression level of the superficial vimentin on VECs was not affected by viral infection or siRNA interference, indicating that the protein exists in a particular mode. Furthermore, the rod domain of the vimentin protein mainly functions in DENV-2 adsorption into VECs. Molecular docking results predicted several residues in vimentin rod and DENV EDIII; these residues may be responsible for cell–virus interactions. We propose that the superficial vimentin could be a novel molecule involved in DENV binding and infection of VECs. DENV EDIII directly interacts with the rod domain of vimentin on the VEC surface and thus mediates the infection.
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24
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Li D, He L, Guo H, Chen H, Shan H. Targeting activated hepatic stellate cells (aHSCs) for liver fibrosis imaging. EJNMMI Res 2015; 5:71. [PMID: 26650603 PMCID: PMC4674461 DOI: 10.1186/s13550-015-0151-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 11/27/2015] [Indexed: 12/12/2022] Open
Abstract
Following injurious stimuli, quiescent hepatic stellate cells (qHSCs) transdifferentiate into activated HSCs (aHSCs). aHSCs play pivotal roles in the onset and progression of liver fibrosis. Therefore, molecular imaging of aHSCs in liver fibrosis will facilitate early diagnosis, prognosis prediction, and instruction and evaluation of aHSC-targeted treatment. To date, several receptors, such as integrin αvβ3, mannose 6-phosphate/insulin-like growth factor II receptor (M6P/IGF-IIR), collagen type VI receptor (CVIR), platelet-derived growth factor receptor-β (PDGFR-β), vimentin, and desmin, have been identified as biomarkers of aHSCs. Corresponding ligands to these receptors have also been developed. This review will discuss strategies for developing aHSC-targeted imaging in liver fibrosis.
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Affiliation(s)
- Dan Li
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China.,Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangzhou, 510630, China
| | - Li He
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Huizhuang Guo
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou, 511400, China
| | - Hanwei Chen
- Department of Radiology, Guangzhou Panyu Central Hospital, Guangzhou, 511400, China.
| | - Hong Shan
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China. .,Guangdong Provincial Engineering Research Center of Molecular Imaging, Guangzhou, 510630, China. .,Interventional Radiology Institute of Sun Yat-sen University, Guangzhou, 510630, China.
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Satelli A, Mitra A, Brownlee Z, Xia X, Bellister S, Overman MJ, Kopetz S, Ellis LM, Meng QH, Li S. Epithelial-mesenchymal transitioned circulating tumor cells capture for detecting tumor progression. Clin Cancer Res 2014; 21:899-906. [PMID: 25516888 DOI: 10.1158/1078-0432.ccr-14-0894] [Citation(s) in RCA: 178] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE This study aimed to detect cell-surface vimentin (CSV) on the surface of epithelial-mesenchymal transitioned (EMT) circulating tumor cells (CTC) from blood of patients with epithelial cancers. EXPERIMENTAL DESIGN In this study, 101 patients undergoing postsurgery adjuvant chemotherapy for metastatic colon cancer were recruited. EMT CTCs were detected from blood of patients using the 84-1 monoclonal antibody against CSV as a marker. EMT CTCs isolated were characterized further using EMT-specific markers, fluorescent in situ hybridization, and single-cell mutation analysis. RESULTS Using the 84-1 antibody, we detected CSV exclusively on EMT CTCs from a variety of tumor types but not in the surrounding normal cells in the blood. The antibody exhibited very high specificity and sensitivity toward different epithelial cancer cells. With this antibody, we detected and enumerated EMT CTCs from patients. From our observations, we defined a cutoff of <5 or ≥5 EMT CTCs as the optimal threshold with respect to therapeutic response using ROC curves. Using this defined threshold, the presence of ≥5 EMT CTCs was associated with progressive disease, whereas patients with <5 EMT CTCs showed therapeutic response. CONCLUSION Taken together, the number of EMT CTCs detected correlated with the therapeutic outcome of the disease. These results establish CSV as a universal marker for EMT CTCs from a wide variety of tumor types and thus provide the foundation for emerging CTC detection technologies and for studying the molecular regulation of these EMT CTCs.
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Affiliation(s)
- Arun Satelli
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Abhisek Mitra
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Zachary Brownlee
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Xueqing Xia
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Seth Bellister
- Department of Surgical Oncology, Division of Surgery and Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Michael J Overman
- Department of Gastrointestinal Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Scott Kopetz
- Department of Surgical Oncology, Division of Surgery and Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Lee M Ellis
- Department of Gastrointestinal Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Qing H Meng
- Laboratory Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Shulin Li
- Department of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas. The University of Texas Graduate School of Biomedical Sciences, Houston, Texas.
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Rohrbeck A, Schröder A, Hagemann S, Pich A, Höltje M, Ahnert-Hilger G, Just I. Vimentin mediates uptake of C3 exoenzyme. PLoS One 2014; 9:e101071. [PMID: 24967582 PMCID: PMC4072758 DOI: 10.1371/journal.pone.0101071] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 06/03/2014] [Indexed: 02/02/2023] Open
Abstract
Clostridium botulinum C3 exoenzyme (C3) selectively inactivates RhoA/B/C GTPases by ADP-ribosylation. Based on this substrate specificity C3 is a well-established tool in cell biology. C3 is taken up by eukaryotic cells although lacking an uptake and translocation domain. Based on different approaches vimentin was identified as membranous C3-interaction partner by mass spectrometry. Vimentin in fact was partly localized at the outer surface of hippocampal HT22 cells and J744A.1 macrophages. Domain analysis identified the rod domain as binding partner of C3. Vimentin was also involved in uptake of C3 as shown by knock down of vimentin in HT22 and J774A.1 cells. The involvement of vimentin in uptake of C3 was further supported by the findings that the vimentin disruptor acrylamide blocked uptake of C3. Vimentin is not only a major organizing element of the intermediate filament network but is also involved in both binding and uptake of C3 exoenzyme.
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Affiliation(s)
- Astrid Rohrbeck
- Institute of Toxicology, Hannover Medical School, Charité-Universitätsmedizin Berlin, Germany
- * E-mail:
| | - Anke Schröder
- Institute of Toxicology, Hannover Medical School, Charité-Universitätsmedizin Berlin, Germany
| | - Sandra Hagemann
- Institute of Toxicology, Hannover Medical School, Charité-Universitätsmedizin Berlin, Germany
| | - Andreas Pich
- Institute of Toxicology, Hannover Medical School, Charité-Universitätsmedizin Berlin, Germany
| | - Markus Höltje
- Center for Anatomy, Functional Cell Biology, Charité-Universitätsmedizin Berlin, Germany
| | - Gudrun Ahnert-Hilger
- Center for Anatomy, Functional Cell Biology, Charité-Universitätsmedizin Berlin, Germany
| | - Ingo Just
- Institute of Toxicology, Hannover Medical School, Charité-Universitätsmedizin Berlin, Germany
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Satelli A, Mitra A, Cutrera JJ, Devarie M, Xia X, Ingram DR, Dibra D, Somaiah N, Torres KE, Ravi V, Ludwig JA, Kleinerman ES, Li S. Universal marker and detection tool for human sarcoma circulating tumor cells. Cancer Res 2014; 74:1645-50. [PMID: 24448245 DOI: 10.1158/0008-5472.can-13-1739] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
To date, no specific marker exists for the detection of circulating tumor cells (CTC) from different types of sarcomas, though tools are available for detection of CTCs in peripheral blood of patients with cancer for epithelial cancers. Here, we report cell-surface vimentin (CSV) as an exclusive marker on sarcoma CTC regardless of the tissue origin of the sarcoma as detected by a novel monoclonal antibody. Utilizing CSV as a probe, we isolated and enumerated sarcoma CTCs with high sensitivity and specificity from the blood of patients bearing different types of sarcoma, validating their phenotype by single cell genomic amplification, mutation detection, and FISH. Our results establish the first universal and specific CTC marker described for enumerating CTCs from different types of sarcoma, thereby providing a key prognosis tool to monitor cancer metastasis and relapse.
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Affiliation(s)
- Arun Satelli
- Authors' Affiliations: Departments of Pediatrics and Surgical Oncology; Department of Sarcoma Medical Oncology, The University of Texas MD Anderson Cancer Center; and UTMD Graduate School of Biomedical Sciences, Houston, Texas
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Thiagarajan PS, Akbasli AC, Kinter MT, Willard B, Cathcart MK. Vimentin is a target of PKCβ phosphorylation in MCP-1-activated primary human monocytes. Inflamm Res 2013; 62:991-1001. [PMID: 23974215 DOI: 10.1007/s00011-013-0657-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Accepted: 08/08/2013] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE AND DESIGN We designed a study to detect downstream phosphorylation targets of PKCβ in MCP-1-induced human monocytes. METHODS Two-dimensional gel electrophoresis was performed for monocytes treated with MCP-1 in the presence or absence of PKCβ antisense oligodeoxyribonucleotides (AS-ODN) or a PKCβ inhibitor peptide, followed by phospho- and total protein staining. Proteins that stained less intensely with the phospho-stain, when normalized to the total protein stain, in the presence of PKCβ AS-ODN or the PKCβ inhibitor peptide, were sequenced. RESULTS Of the proteins identified, vimentin was consistently identified using both experimental approaches. Upon (32)P-labeling and vimentin immunoprecipitation, increased phosphorylation of vimentin was observed in MCP-1 treated monocytes as compared to the untreated monocytes. Both PKCβ AS-ODN and the PKCβ inhibitor reduced MCP-1-induced vimentin phosphorylation. The IP of monocytes with anti-vimentin antibody and immunoblotting with a PKCβ antibody revealed that increased PKCβ becomes associated with vimentin upon MCP-1 activation. Upon MCP-1 treatment, monocytes were shown to secrete vimentin and secretion depended on PKCβ expression and activity. CONCLUSIONS We conclude that vimentin, a major intermediate filament protein, is a phosphorylation target of PKCβ in MCP-1-treated monocytes and that PKCβ phosphorylation is essential for vimentin secretion. Our recently published studies have implicated vimentin as a potent stimulator of the innate immune receptor Dectin-1 as reported by Thiagarajan et al. (Cardiovasc Res 99:494-504, 2013). Taken together our findings suggest that inhibition of PKCβ regulates vimentin secretion and, thereby, its interaction with Dectin-1 and downstream stimulation of superoxide anion production. Thus, PKCβ phosphorylation of vimentin likely plays an important role in propagating inflammatory responses.
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Affiliation(s)
- Praveena S Thiagarajan
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic Foundation, 9500 Euclid Ave., Cleveland, OH, 44195, USA
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Teshigawara K, Kuboyama T, Shigyo M, Nagata A, Sugimoto K, Matsuya Y, Tohda C. A novel compound, denosomin, ameliorates spinal cord injury via axonal growth associated with astrocyte-secreted vimentin. Br J Pharmacol 2013; 168:903-19. [PMID: 22978525 DOI: 10.1111/j.1476-5381.2012.02211.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 08/07/2012] [Accepted: 09/05/2012] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND AND PURPOSE In the spinal cord injury (SCI) axon regeneration is inhibited by the glial scar, which contains reactive astrocytes that secrete inhibitory chondroitin sulphate proteoglycan (CSPG). We previously reported that a novel compound, denosomin, promotes axonal growth under degenerative conditions in cultured cortical neurons. In this study, we investigated the effects of denosomin on functional recovery in SCI mice and elucidated the mechanism though which denosomin induces axonal growth in the injured spinal cord. EXPERIMENTAL APPROACH Denosomin was administered p.o. for 7 or 14 days to contusion mice. Behavioural evaluations and immunohistochemistry were done. Primary cultured cortical neurons and astrocytes were treated with denosomin to investigate the mechanism of axonal growth facilitation. KEY RESULTS Denosomin improved hind limb motor dysfunction and axonal growth, especially in the 5-HT-positive tracts across the scar and increased the density of astrocytes. Denosomin increased astrocyte proliferation, inhibited astrocytic death and increased the expression and secretion of vimentin in cultured astrocytes. Furthermore, vimentin increased axonal outgrowth in cultured neurons, even in the presence of inhibitory CSPG. Denosomin increased the number of vimentin-expressing astrocytes inside glial scars of SCI mice, and 5-HT-positive axonal growth occurred in a vimentin-associated manner. CONCLUSION AND IMPLICATIONS Denosomin increased the ratio of astrocytes that secrete vimentin as an axonal growth facilitator, which, we propose enhances axonal growth beyond the glial scar and promotes functional recovery in SCI mice. This study is the first to demonstrate this novel role of vimentin in SCI and drug-mediated modification of the inhibitory property of reactive astrocytes.
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Affiliation(s)
- Kiyoshi Teshigawara
- Division of Neuromedical Science, Department of Bioscience, Institute of Natural Medicine, University of Toyama, Toyama, Japan
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Thiagarajan PS, Yakubenko VP, Elsori DH, Yadav SP, Willard B, Tan CD, Rodriguez ER, Febbraio M, Cathcart MK. Vimentin is an endogenous ligand for the pattern recognition receptor Dectin-1. Cardiovasc Res 2013; 99:494-504. [PMID: 23674515 DOI: 10.1093/cvr/cvt117] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
AIMS Atherosclerosis is a chronic inflammatory disorder of cholesterol deposition in monocyte-derived macrophages (MDM) within the arterial wall leading to impingement on the lumen of the vessel. In atherosclerotic lesions, MDM are the primary source of NADPH oxidase-derived superoxide anion (O₂⁻) inducing low-density lipoprotein (LDL) oxidation leading to their unregulated uptake of oxidized LDL and foam cell formation. We recently discovered that zymosan potently activates monocyte NADPH oxidase via the non-toll pattern recognition receptor (PRR), Dectin-1. Other PRRs bind endogenous human ligands, yet no such ligands have been identified for Dectin-1. Our hypothesis was that inflammation generates endogenous ligands for Dectin-1 that activate O₂⁻ production and thereby contributes to atherogenesis. METHODS AND RESULTS Human: anti-zymosan antibodies were used to identify similar, cross-reactive epitopes in human atherosclerotic tissue extracts. Immunoblot analysis revealed consistent antibody reactive protein bands on one- and two-dimensional gel electrophoreses. Vimentin was identified by mass spectrometry in the immunoreactive bands across different tissue samples. Direct binding of vimentin to Dectin-1 was observed using BIACORE. Further data revealed that vimentin induces O₂⁻ production by human monocytes. Analysis of human atherosclerotic lesions revealed that vimentin was detected extracellularly in the necrotic core and in areas of active inflammation. Vimentin also co-localized with Dectin-1 in macrophage-rich regions where O₂⁻ is produced. CONCLUSION We conclude that vimentin is an endogenous, activating ligand for Dectin-1. Its presence in areas of artery wall inflammation and O₂⁻ production suggests that vimentin activates Dectin-1 and contributes to the oxidation of lipids and cholesterol accumulation in atherosclerosis.
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Affiliation(s)
- Praveena S Thiagarajan
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA
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31
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Cha SC, Qin H, Kannan S, Rawal S, Watkins LS, Baio FE, Wu W, Ong J, Wei J, Kwak B, Kim S, Popescu MS, Paick DS, Kim K, Luong A, Davis RE, Schroeder HW, Kwak LW, Neelapu SS. Nonstereotyped lymphoma B cell receptors recognize vimentin as a shared autoantigen. THE JOURNAL OF IMMUNOLOGY 2013; 190:4887-98. [PMID: 23536634 DOI: 10.4049/jimmunol.1300179] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Ag activation of the BCR may play a role in the pathogenesis of human follicular lymphoma (FL) and other B cell malignancies. However, the nature of the Ag(s) recognized by tumor BCRs has not been well studied. In this study, we used unbiased approaches to demonstrate that 42 (19.35%) of 217 tested FL Igs recognized vimentin as a shared autoantigen. The epitope was localized to the N-terminal region of vimentin for all vimentin-reactive tumor Igs. We confirmed specific binding to vimentin by using recombinant vimentin and by performing competitive inhibition studies. Furthermore, using indirect immunofluorescence staining, we showed that the vimentin-reactive tumor Igs colocalized with an anti-vimentin mAb in HEp-2 cells. The reactivity to N-terminal vimentin of IgG FL Igs was significantly higher than that of IgM FL Igs (30.4 versus 10%; p = 0.0022). However, vimentin-reactive FL Igs did not share CDR3 motifs and were not homologous. Vimentin was expressed in the T cell-rich regions of FL, suggesting that vimentin is available for binding with tumor BCRs within the tumor microenvironment. Vimentin was also frequently recognized by mantle cell lymphoma and multiple myeloma Igs. Our results demonstrate that vimentin is a shared autoantigen recognized by nonstereotyped FL BCRs and by the Igs of mantle cell lymphoma and multiple myeloma and suggest that vimentin may play a role in the pathogenesis of multiple B cell malignancies. These findings may lead to a better understanding of the biology and natural history of FL and other B cell malignancies.
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Affiliation(s)
- Soung-Chul Cha
- Division of Cancer Medicine, Department of Lymphoma and Myeloma, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Bilalic S, Michlmayr A, Gruber V, Buchberger E, Burghuber C, Böhmig GA, Oehler R. Lymphocyte activation induces cell surface expression of an immunogenic vimentin isoform. Transpl Immunol 2012; 27:101-6. [DOI: 10.1016/j.trim.2012.06.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Revised: 06/11/2012] [Accepted: 06/11/2012] [Indexed: 01/15/2023]
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Dingli F, Parys JB, Loew D, Saule S, Mery L. Vimentin and the K-Ras-induced actin-binding protein control inositol-(1,4,5)-trisphosphate receptor redistribution during MDCK cell differentiation. J Cell Sci 2012; 125:5428-40. [PMID: 22946050 DOI: 10.1242/jcs.108738] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Inositol-(1,4,5)-triphosphate receptors (InsP(3)Rs) are ligand-gated Ca(2+) channels that control Ca(2+) release from intracellular stores and play a central role in a wide range of cellular responses. In most epithelial cells, InsP(3)Rs are not uniformly distributed within the endoplasmic reticulum (ER) membrane, with the consequence that agonist stimulation results in compartmentalized Ca(2+) signals. Despite these observations, little is known about the mechanisms that regulate the intracellular localization of InsP(3)Rs. Here, we report that exogenously expressed InsP(3)R1-GFP and endogenous InsP(3)R3 interact with the K-Ras-induced actin-binding protein (KRAP) in both differentiated and undifferentiated Madin-Darby canine kidney (MDCK) cells. KRAP mediates InsP(3)R clustering in confluent MDCK cells and functions as an adapter, linking InsP(3)Rs to vimentin intermediate filaments. Upon epithelial differentiation, KRAP and vimentin are both required for InsP(3)R accumulation at the periphery of MDCK cells. Finally, KRAP associates with vimentin in chicken B lymphocytes and with keratins in a breast cancer cell line devoid of vimentin. Collectively, our data suggest that intermediate filaments in conjunction with KRAP may govern the localization of InsP(3)Rs in a large number of cell types (including epithelial cells) and in various physiological or pathological contexts.
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Affiliation(s)
- Florent Dingli
- Laboratory of Proteomic Mass Spectrometry, Institut Curie, 75248 Paris, Cedex 05, France
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Inducible expression and pathophysiologic functions of T-plastin in cutaneous T-cell lymphoma. Blood 2012; 120:143-54. [PMID: 22627769 DOI: 10.1182/blood-2011-09-379156] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A molecular feature of Sézary syndrome (SS) is the abnormal expression of T-plastin by malignant T cells. Herein, we investigated the molecular mechanisms involved in T-plastin synthesis and the functions of this actin-binding protein, with a special interest in chemoresistance and migration. We confirm the specific expression of T-plastin in peripheral blood lymphocytes (PBLs) from SS patients and its total absence in PBLs from patients with mycosis fungoides, inflammatory cutaneous or hematologic diseases, and from healthy volunteers. Only 3 of 4 SS patients did constitutively express T-plastin. To assess whether T-plastin expression was inducible, T-plastin-negative PBLs were stimulated by phorbol 12-myristate 13-acetate and ionomycin. Our results demonstrate that T-plastin synthesis was induced in negative PBLs from SS patients, other studied patients, and healthy volunteers. Both constitutive and calcium-induced T-plastin expression was down-regulated by calcineurin inhibitors and involved nuclear factor of activated T cells transcription pathway. Constitutive T-plastin expression in SS was associated with resistance to etoposide-induced apoptosis and cell migration toward chemokines (TARC/CCL17, IP-10). In conclusion, T-plastin is a marker restricted to malignant lymphocytes from SS patients and plays a role for cell survival and migration. This opens new strategies for the treatment of SS advanced stages.
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Plummer EM, Thomas D, Destito G, Shriver LP, Manchester M. Interaction of cowpea mosaic virus nanoparticles with surface vimentin and inflammatory cells in atherosclerotic lesions. Nanomedicine (Lond) 2012; 7:877-88. [PMID: 22394183 DOI: 10.2217/nnm.11.185] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
AIMS Detection of atherosclerosis has generally been limited to the late stages of development, after cardiovascular symptoms present or a clinical event occurs. One possibility for early detection is the use of functionalized nanoparticles. The aim of this study was the early imaging of atherosclerosis using nanoparticles with a natural affinity for inflammatory cells in the lesion. MATERIALS & METHODS We investigated uptake of cowpea mosaic virus by macrophages and foam cells in vitro and correlated this with vimentin expression. We also examined the ability of cowpea mosaic virus to interact with atherosclerotic lesions in a murine model of atherosclerosis. RESULTS & CONCLUSION We found that uptake of cowpea mosaic virus is increased in areas of atherosclerotic lesion. This correlated with increased surface vimentin in the lesion compared with nonlesion vasculature. In conclusion, cowpea mosaic virus and its vimentin-binding region holds potential for use as a targeting ligand for early atherosclerotic lesions, and as a probe for detecting upregulation of surface vimentin during inflammation.
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Affiliation(s)
- Emily M Plummer
- University of California, San Diego, Skaggs School of Pharmacy, La Jolla, CA 92093-0749, USA
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Caudron A, Marie-Cardine A, Bensussan A, Bagot M. Actualités sur le syndrome de Sézary. Ann Dermatol Venereol 2012; 139:31-40. [DOI: 10.1016/j.annder.2011.09.188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2011] [Revised: 06/27/2011] [Accepted: 09/22/2011] [Indexed: 01/23/2023]
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Soluble CD44 interacts with intermediate filament protein vimentin on endothelial cell surface. PLoS One 2011; 6:e29305. [PMID: 22216242 PMCID: PMC3244446 DOI: 10.1371/journal.pone.0029305] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Accepted: 11/24/2011] [Indexed: 01/29/2023] Open
Abstract
CD44 is a cell surface glycoprotein that functions as hyaluronan receptor. Mouse and human serum contain substantial amounts of soluble CD44, generated either by shedding or alternative splicing. During inflammation and in cancer patients serum levels of soluble CD44 are significantly increased. Experimentally, soluble CD44 overexpression blocks cancer cell adhesion to HA. We have previously found that recombinant CD44 hyaluronan binding domain (CD44HABD) and its non-HA-binding mutant inhibited tumor xenograft growth, angiogenesis, and endothelial cell proliferation. These data suggested an additional target other than HA for CD44HABD. By using non-HA-binding CD44HABD Arg41Ala, Arg78Ser, and Tyr79Ser-triple mutant (CD443MUT) we have identified intermediate filament protein vimentin as a novel interaction partner of CD44. We found that vimentin is expressed on the cell surface of human umbilical vein endothelial cells (HUVEC). Endogenous CD44 and vimentin coprecipitate from HUVECs, and when overexpressed in vimentin-negative MCF-7 cells. By using deletion mutants, we found that CD44HABD and CD443MUT bind vimentin N-terminal head domain. CD443MUT binds vimentin in solution with a Kd in range of 12–37 nM, and immobilised vimentin with Kd of 74 nM. CD443MUT binds to HUVEC and recombinant vimentin displaces CD443MUT from its binding sites. CD44HABD and CD443MUT were internalized by wild-type endothelial cells, but not by lung endothelial cells isolated from vimentin knock-out mice. Together, these data suggest that vimentin provides a specific binding site for soluble CD44 on endothelial cells.
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Xu W, Li X, Yuan Z, Gao X. Immunoproteomic analysis of the antibody response obtained in mouse following vaccination with a T-cell vaccine. Proteomics 2011; 11:4368-75. [PMID: 21919206 DOI: 10.1002/pmic.201100276] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2011] [Revised: 08/10/2011] [Accepted: 08/22/2011] [Indexed: 11/10/2022]
Abstract
T-cell vaccination (TCV), the application of irradiated activated T cells, has been shown to prevent effectively and treat experimental autoimmune diseases. It has been reported that anti-lymphocytic antibodies induced by TCV were capable of strongly inhibiting T-cell proliferation and of ameliorating experimental autoimmune disease. The present study was undertaken to characterize the antigen specificity of these Abs. We used activated mouse ovalbumin (OVA)-specific T cells (OVA-T) as vaccine immunized mice. By combination of 2-DE, 2-D Western blot and Q-TOF mass spectrometry we have identified 11 antigens in activated T cells that were recognized by the anti-T-cell Abs. The resulting antigenic molecules included calreticulin (CRT), ERp57, Vimentin, HSP70-4, tubulin β5 chain, coronin-1A, pyruvate kinase, ATP synthase β chain and transketolase most of which belong to so-called damage-associated molecular pattern molecules (DAMPs). CRT, ERp57 and vementin were further examined by Western blot and cellular ELISA to identify molecular targets which may be involved in the TCV immunotherapy. On the basis of our results, γ-radiation induced the activated T cells "immunogenic apoptosis" and exposed/secreted DAMPs (CRT, ERp57 and Vementin) played an important role in TCV therapy.
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Affiliation(s)
- Wen Xu
- Department of Immunology, Peking University Health Science Center, Beijing, [corrected] China.
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Satelli A, Li S. Vimentin in cancer and its potential as a molecular target for cancer therapy. Cell Mol Life Sci 2011; 68:3033-46. [PMID: 21637948 PMCID: PMC3162105 DOI: 10.1007/s00018-011-0735-1] [Citation(s) in RCA: 1064] [Impact Index Per Article: 81.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Revised: 05/12/2011] [Accepted: 05/16/2011] [Indexed: 02/06/2023]
Abstract
Vimentin, a major constituent of the intermediate filament family of proteins, is ubiquitously expressed in normal mesenchymal cells and is known to maintain cellular integrity and provide resistance against stress. Vimentin is overexpressed in various epithelial cancers, including prostate cancer, gastrointestinal tumors, tumors of the central nervous system, breast cancer, malignant melanoma, and lung cancer. Vimentin's overexpression in cancer correlates well with accelerated tumor growth, invasion, and poor prognosis; however, the role of vimentin in cancer progression remains obscure. In recent years, vimentin has been recognized as a marker for epithelial-mesenchymal transition (EMT). Although EMT is associated with several tumorigenic events, vimentin's role in the underlying events mediating these processes remains unknown. By virtue of its overexpression in cancer and its association with tumor growth and metastasis, vimentin serves as an attractive potential target for cancer therapy; however, more research would be crucial to evaluate its specific role in cancer. Our recent discovery of a vimentin-binding mini-peptide has generated further impetus for vimentin-targeted tumor-specific therapy. Furthermore, research directed toward elucidating the role of vimentin in various signaling pathways would reveal new approaches for the development of therapeutic agents. This review summarizes the expression and functions of vimentin in various types of cancer and suggests some directions toward future cancer therapy utilizing vimentin as a potential molecular target.
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Affiliation(s)
- Arun Satelli
- Department of Pediatrics, Unit 853, The University of Texas MD Anderson Cancer Center, 1515 Holocombe Blvd, Houston, TX 77030 USA
| | - Shulin Li
- Department of Pediatrics, Unit 853, The University of Texas MD Anderson Cancer Center, 1515 Holocombe Blvd, Houston, TX 77030 USA
- UTMD, Graduate School of Biomedical Science, Houston, TX 77030 USA
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Two Domains of Vimentin Are Expressed on the Surface of Lymph Node, Bone and Brain Metastatic Prostate Cancer Lines along with the Putative Stem Cell Marker Proteins CD44 and CD133. Cancers (Basel) 2011; 3:2870-85. [PMID: 24212937 PMCID: PMC3759176 DOI: 10.3390/cancers3032870] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 06/27/2011] [Accepted: 07/06/2011] [Indexed: 11/17/2022] Open
Abstract
Vimentin was originally identified as an intermediate filament protein present only as an intracellular component in many cell types. However, this protein has now been detected on the surface of a number of different cancer cell types in a punctate distribution pattern. Increased vimentin expression has been indicated as an important step in epithelial-mesenchymal transition (EMT) required for the metastasis of prostate cancer. Here, using two vimentin-specific monoclonal antibodies (SC5 and V9 directed against the coil one rod domain and the C-terminus of the vimentin protein, respectively), we examined whether either of these domains would be displayed on the surface of three commonly studied prostate cancer cell lines isolated from different sites of metastases. Confocal analysis of LNCaP, PC3 and DU145 prostate cancer cell lines (derived from lymph node, bone or brain prostate metastases, respectively) demonstrated that both domains of vimentin are present on the surface of these metastatic cancer cell types. In addition, flow cytometric analysis revealed that vimentin expression was readily detected along with CD44 expression but only a small subpopulation of prostate cancer cells expressed vimentin and the putative stem cell marker CD133 along with CD44. Finally, Cowpea mosaic virus (CPMV) nanoparticles that target vimentin could bind and internalize into tested prostate cancer cell lines. These results demonstrate that at least two domains of vimentin are present on the surface of metastatic prostate cancer cells and suggest that vimentin could provide a useful target for nanoparticle- or antibody- cancer therapeutic agents directed against highly invasive cancer and/or stem cells.
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Cutrera J, Dibra D, Xia X, Hasan A, Reed S, Li S. Discovery of a linear peptide for improving tumor targeting of gene products and treatment of distal tumors by IL-12 gene therapy. Mol Ther 2011; 19:1468-77. [PMID: 21386825 DOI: 10.1038/mt.2011.38] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Like many effective therapeutics, interleukin-12 (IL-12) therapy often causes side effects. Tumor targeted delivery may improve the efficacy and decrease the toxicity of systemic IL-12 treatments. In this study, a novel targeting approach was investigated. A secreted alkaline phosphatase (SEAP) reporter gene-based screening process was used to identify a mini-peptide which can be produced in vivo to target gene products to tumors. The coding region for the best peptide was inserted into an IL-12 gene to determine the antitumor efficacy. Affinity chromatography, mass spectrometry analysis, and binding studies were used to identify a receptor for this peptide. We discovered that the linear peptide VNTANST increased the tumor accumulation of the reporter gene products in five independent tumor models including one human xenogeneic model. The product from VNTANST-IL-12 fusion gene therapy increased accumulation of IL-12 in the tumor environment, and in three tumor models, VNTANST-IL-12 gene therapy inhibited distal tumor growth. In a spontaneous lung metastasis model, inhibition of metastatic tumor growth was improved compared to wild-type IL-12 gene therapy, and in a squamous cell carcinoma model, toxic liver lesions were reduced. The receptor for VNTANST was identified as vimentin. These results show the promise of using VNTANST to improve IL-12 treatments.
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Affiliation(s)
- Jeffry Cutrera
- Department of Pediatrics, MD Anderson Cancer Center, Houston, Texas, USA
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Steinmetz NF, Cho CF, Ablack A, Lewis JD, Manchester M. Cowpea mosaic virus nanoparticles target surface vimentin on cancer cells. Nanomedicine (Lond) 2011; 6:351-64. [PMID: 21385137 PMCID: PMC3436905 DOI: 10.2217/nnm.10.136] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIMS Vimentin, a type III intermediate filament, is upregulated during epithelial-mesenchymal transition and tumor progression. Vimentin is surface-expressed on cells involved in inflammation; the function remains unknown. We investigated the expression of surface vimentin on cancer cells and evaluated targeting nanoparticles to tumors exploiting vimentin. MATERIALS & METHODS Cowpea mosaic virus nanoparticles that interact with surface vimentin were used as probes. Tumor homing was tested using the chick chorioallantoic membrane model with human tumor xenografts. RESULTS & DISCUSSION Surface vimentin levels varied during cell cycle and among the cell lines tested. Surface vimentin expression correlated with cowpea mosaic virus uptake, underscoring the utility of cowpea mosaic virus to detect invasive cancer cells. Targeting to tumor xenografts was observed; homing was based on the enhanced permeability and retention effect. Our data provide novel insights into the role of surface vimentin in cancer and targeting nanoparticles in vivo.
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Affiliation(s)
- Nicole F Steinmetz
- Department for Cell Biology, Center for Integrative Molecular Biosciences, The Scripps Research Institute, La Jolla, CA, USA
- Department of Biomedical Engineering, Case Center for Imaging Research, Case Western Reserve University, Cleveland, OH, USA
| | - Choi-Fong Cho
- Translational Prostate Cancer Research Group, London Regional Cancer Program, London, ON, Canada
- Department of Medical Biophysics, University of Western Ontario, London, ON, Canada
| | - Amber Ablack
- Translational Prostate Cancer Research Group, London Regional Cancer Program, London, ON, Canada
| | - John D Lewis
- Translational Prostate Cancer Research Group, London Regional Cancer Program, London, ON, Canada
- Department of Medical Biophysics, University of Western Ontario, London, ON, Canada
| | - Marianne Manchester
- Department for Cell Biology, Center for Integrative Molecular Biosciences, The Scripps Research Institute, La Jolla, CA, USA
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Che X, Chi F, Wang L, Jong TD, Wu CH, Wang X, Huang SH. Involvement of IbeA in meningitic Escherichia coli K1-induced polymorphonuclear leukocyte transmigration across brain endothelial cells. Brain Pathol 2010; 21:389-404. [PMID: 21083634 DOI: 10.1111/j.1750-3639.2010.00463.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Transmigration of neutrophil [polymorphonuclear neutrophil (PMN)] across the blood-brain barrier (BBB) is a critical event in the pathogenesis of bacterial meningitis. We have shown that IbeA is able to induce meningitic Escherichia coli invasion of brain microvascular endothelial cells (BMECs), which constitutes the BBB. In this report, we provide evidence that IbeA and its receptor, vimentin, play a key role in E. coli-induced PMN transmigration across BMEC. In vitro and in vivo studies indicated that the ibeA-deletion mutant ZD1 was significantly less active in stimulating PMN transmigration than the parent strain E44. ZD1 was fully complemented by the ibeA gene and its product. E. coli-induced PMN transmigration was markedly inhibited by withaferin A, a dual inhibitor of vimentin and proteasome. These cellular effects were significantly stimulated and blocked by overexpression of vimentin and its head domain deletion mutant in human BMEC, respectively. Our studies further demonstrated that IbeA-induced PMN migration was blocked by bortezomib, a proteasomal inhibitor and correlated with upregulation of endothelial ICAM-1 and CD44 expression through proteasomal regulation of NFκB activity. Taken together, our data suggested that IbeA and vimentin contribute to E. coli K1-stimulated PMN transendothelial migration that is correlated with upregulation of adhesion molecule expression at the BBB.
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Affiliation(s)
- Xiaojuan Che
- Saban Research Institute of Childrens Hospital Los Angeles, Department of Pediatrics, University of Southern California, Los Angeles, CA 90027, USA
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Abstract
Antiphospholipid syndrome (APS) is an autoimmune disease characterized by arterial and venous thrombosis, recurrent abortions, and antiphospholipid antibodies (aPL). However, it is possible to find patients with clinical signs of APS who persistently test negative for aPL (seronegative APS, or SN-APS). The aim of this study was to identify new antigenic target(s) of autoantibodies in APS patients, which may also be recognized in SN-APS. We tested sera from patients with SN-APS with a proteomic approach by analyzing endothelial cell-surface membrane proteins. Sera from SN-APS patients revealed 2 reactive spots corresponding to vimentin, a protein that is shown to bind cardiolipin in vitro. Antivimentin/cardiolipin antibodies were tested in 29 SN-APS patients, 40 APS patients, 30 patients with systemic lupus erythematosus, 30 with rheumatoid arthritis, 30 with venous or arterial thrombosis, and 32 healthy control patients. We observed that not only a large proportion of SN-APS patients but also almost all the APS patients displayed the presence of antivimentin/cardiolipin antibodies. To verify the possible pathogenic role of these autoantibodies, we demonstrated that affinity-purified antivimentin/cardiolipin antibodies induced interleukin receptor-associated kinase phosphorylation and nuclear factor-κB activation in endothelial cells. Our results prompt to identify vimentin as a "new" cofactor for aPL, which may represent a useful tool mainly in SN-APS patients.
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Chong WP, Zhou J, Law HKW, Tu W, Lau YL. Natural killer cells become tolerogenic after interaction with apoptotic cells. Eur J Immunol 2010; 40:1718-27. [PMID: 20391434 DOI: 10.1002/eji.200939768] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
NK cells are effectors in innate immunity and also participate in immunoregulation through the release of TGF-beta1 and lysis of activated/autoreactive T cells. Apoptotic cells (AC) have been shown to induce tolerogenic properties in innate immune cells, including macrophages and dendritic cells, but not NK cells. In this study, we demonstrated that after interaction with AC, NK cells released TGF-beta1, which in turn suppressed the production of IFN-gamma by NK cells upon IL-12 and IgG activation. We further identified phosphatidylserine as a potential target on AC for the NK cells, as phosphatidylserine could stimulate NK cells to release TGF-beta1, which in turn suppressed CD4(+) T-cell proliferation and activation. Moreover, AC-treated NK cells displayed cytotoxicity against autologous-activated CD4(+) T cells by upregulating NKp46. This lysis occurred in part through the NKp46-vimentin pathway, as activated CD4(+) T cells expressed vimentin on the cell surface and blocking of vimentin or NKp46, but not other NK-cell receptors, significantly suppressed the NK-cell cytotoxicity. We report here a novel interaction between NK cells and AC, resulting in the tolerogenic properties of NK cells required for immune contraction.
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Affiliation(s)
- Wai Po Chong
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Pokfulam, Hong Kong SAR, P. R. China
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Koudelka KJ, Destito G, Plummer EM, Trauger SA, Siuzdak G, Manchester M. Endothelial targeting of cowpea mosaic virus (CPMV) via surface vimentin. PLoS Pathog 2009; 5:e1000417. [PMID: 19412526 PMCID: PMC2670497 DOI: 10.1371/journal.ppat.1000417] [Citation(s) in RCA: 140] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2008] [Accepted: 04/07/2009] [Indexed: 12/25/2022] Open
Abstract
Cowpea mosaic virus (CPMV) is a plant comovirus in the picornavirus superfamily, and is used for a wide variety of biomedical and material science applications. Although its replication is restricted to plants, CPMV binds to and enters mammalian cells, including endothelial cells and particularly tumor neovascular endothelium in vivo. This natural capacity has lead to the use of CPMV as a sensor for intravital imaging of vascular development. Binding of CPMV to endothelial cells occurs via interaction with a 54 kD cell-surface protein, but this protein has not previously been identified. Here we identify the CPMV binding protein as a cell-surface form of the intermediate filament vimentin. The CPMV-vimentin interaction was established using proteomic screens and confirmed by direct interaction of CPMV with purified vimentin, as well as inhibition in a vimentin-knockout cell line. Vimentin and CPMV were also co-localized in vascular endothelium of mouse and rat in vivo. Together these studies indicate that surface vimentin mediates binding and may lead to internalization of CPMV in vivo, establishing surface vimentin as an important vascular endothelial ligand for nanoparticle targeting to tumors. These results also establish vimentin as a ligand for picornaviruses in both the plant and animal kingdoms of life. Since bacterial pathogens and several other classes of viruses also bind to surface vimentin, these studies suggest a common role for surface vimentin in pathogen transmission.
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Affiliation(s)
- Kristopher J. Koudelka
- Department of Cell Biology, The Scripps Research Institute, La Jolla, California, United States of America
- Center for Integrative Molecular Biosciences, The Scripps Research Institute, La Jolla, California, United States of America
| | - Giuseppe Destito
- Department of Cell Biology, The Scripps Research Institute, La Jolla, California, United States of America
- Center for Integrative Molecular Biosciences, The Scripps Research Institute, La Jolla, California, United States of America
- Dipartimento di Medicina Sperimentale e Clinica, Università degli Studi Magna Graecia di Catanzaro, Viale Europa, Campus Universitario di Germaneto, Catanzaro, Italy
| | - Emily M. Plummer
- Department of Cell Biology, The Scripps Research Institute, La Jolla, California, United States of America
- Center for Integrative Molecular Biosciences, The Scripps Research Institute, La Jolla, California, United States of America
| | - Sunia A. Trauger
- Department of Molecular Biology, The Scripps Research Institute, La Jolla, California, United States of America
- Center for Mass Spectrometry, The Scripps Research Institute, La Jolla, California, United States of America
| | - Gary Siuzdak
- Department of Molecular Biology, The Scripps Research Institute, La Jolla, California, United States of America
- Center for Mass Spectrometry, The Scripps Research Institute, La Jolla, California, United States of America
| | - Marianne Manchester
- Department of Cell Biology, The Scripps Research Institute, La Jolla, California, United States of America
- Center for Integrative Molecular Biosciences, The Scripps Research Institute, La Jolla, California, United States of America
- * E-mail:
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C7 is expressed on endothelial cells as a trap for the assembling terminal complement complex and may exert anti-inflammatory function. Blood 2009; 113:3640-8. [DOI: 10.1182/blood-2008-03-146472] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
We describe a novel localization of C7 as a membrane-bound molecule on endothelial cells (ECs). Data obtained by sodium dodecyl sulfate–polyacrylamide gel electrophoresis (SDS-PAGE), Western blot analysis, Northern blot analysis, and mass spectrometry revealed that membrane-associated C7 (mC7) was indistinguishable from soluble C7 and was associated with vimentin on the cell surface. mC7 interacted with the other late complement components to form membrane-bound TCC (mTCC). Unlike the soluble SC5b-9, mTCC failed to stimulate ECs to express adhesion molecules, to secrete IL-8, and to induce albumin leakage through a monolayer of ECs, and more importantly protected ECs from the proinflammatory effect of SC5b-9. Our data disclose the possibility of a novel role of mC7 that acts as a trap for the late complement components to control excessive inflammation induced by SC5b-9.
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Bagot M. Structuration d’un réseau national et d’une réunion de concertation pluridisciplinaire nationale de recours pour la prise en charge des lymphomes cutanés rares. ONCOLOGIE 2008. [DOI: 10.1007/s10269-008-0892-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Hill JA, Bell DA, Brintnell W, Yue D, Wehrli B, Jevnikar AM, Lee DM, Hueber W, Robinson WH, Cairns E. Arthritis induced by posttranslationally modified (citrullinated) fibrinogen in DR4-IE transgenic mice. ACTA ACUST UNITED AC 2008; 205:967-79. [PMID: 18391064 PMCID: PMC2292232 DOI: 10.1084/jem.20072051] [Citation(s) in RCA: 196] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Rheumatoid arthritis (RA) is a common autoimmune disease that afflicts the synovium of diarthrodial joints. The pathogenic mechanisms inciting this disease are not fully characterized, but may involve the loss of tolerance to posttranslationally modified (citrullinated) antigens. We have demonstrated that this modification leads to a selective increase in antigenic peptide affinity for major histocompatibility complex (MHC) class II molecules that carry the RA-associated shared epitope, such as HLA-DRB1*0401 (DR4). We describe the induction of arthritis in DR4-IE transgenic (tg) mice with citrullinated fibrinogen, a protein commonly found in inflamed synovial tissue and a frequent target of autoantibodies in RA patients. The disease induced in these mice was characterized by synovial hyperplasia followed by ankylosis, but lacked a conspicuous polymorphonuclear cell infiltrate. Immunological analysis of these mice through T cell epitope scanning and antibody microarray analysis identified a unique profile of citrulline-specific reactivity that was not found in DR4-IE tg mice immunized with unmodified fibrinogen or in wild-type C57BL/6 mice immunized with citrullinated fibrinogen, two conditions where arthritis was not observed. These observations directly implicate citrullinated fibrinogen as arthritogenic in the context of RA-associated MHC class II molecules.
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Affiliation(s)
- Jonathan A Hill
- Department of Microbiology and Immunology, University of Western Ontario, London, Ontario, Canada, N6A 5C1
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50
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Remtoula N, Bensussan A, Marie-Cardine A. Cutting Edge: Selective Expression of Inhibitory or Activating Killer Cell Ig-Like Receptors in Circulating CD4+ T Lymphocytes. THE JOURNAL OF IMMUNOLOGY 2008; 180:2767-71. [DOI: 10.4049/jimmunol.180.5.2767] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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