1
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Ng CS. From the midfacial destructive drama to the unfolding EBV story: a short history of EBV-positive NK-cell and T-cell lymphoproliferative diseases. Pathology 2024:S0031-3025(24)00181-8. [PMID: 39127542 DOI: 10.1016/j.pathol.2024.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 07/01/2024] [Accepted: 07/17/2024] [Indexed: 08/12/2024]
Abstract
Epstein-Barr virus (EBV) is a ubiquitous gammaherpesvirus that has been related to oncogenesis of lymphoid and epithelial malignancies. Although the mechanism of EBV infection of NK and T cells remains enigmatic, it plays a pathogenic role in various EBV+ NK-cell and T-cell lymphoproliferative diseases (LPDs), through promotion of cell activation pathways, inhibition of cell apoptotic pathways, behaving as oncogenes, interacting with host oncogenes or acting epigenetically. The study of NK-cell LPDs, previously hampered by the lack of immunophenotypical and genotypical criteria of NK cells, has become feasible with the recently accepted criteria. EBV+ NK- and T-cell LPDs are mostly of poor prognosis. This review delivers a short history from primeval to recent EBV+ NK- and T-cell LPDs in non-immunocompromised subjects, coupled with increasing interest, and work on the biological and oncogenic roles of EBV.
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Affiliation(s)
- Chi Sing Ng
- Department of Pathology, Caritas Medical Center, Shamshuipo, Kowloon, Hong Kong.
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2
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Letafati A, Ardekani OS, Naderisemiromi M, Norouzi M, Shafiei M, Nik S, Mozhgani SH. Unraveling the dynamic mechanisms of natural killer cells in viral infections: insights and implications. Virol J 2024; 21:18. [PMID: 38216935 PMCID: PMC10785350 DOI: 10.1186/s12985-024-02287-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Accepted: 01/04/2024] [Indexed: 01/14/2024] Open
Abstract
Viruses pose a constant threat to human well-being, necessitating the immune system to develop robust defenses. Natural killer (NK) cells, which play a crucial role in the immune system, have become recognized as vital participants in protecting the body against viral infections. These remarkable innate immune cells possess the unique ability to directly recognize and eliminate infected cells, thereby contributing to the early control and containment of viral pathogens. However, recent research has uncovered an intriguing phenomenon: the alteration of NK cells during viral infections. In addition to their well-established role in antiviral defense, NK cells undergo dynamic changes in their phenotype, function, and regulatory mechanisms upon encountering viral pathogens. These alterations can significantly impact the effectiveness of NK cell responses during viral infections. This review explores the multifaceted role of NK cells in antiviral immunity, highlighting their conventional effector functions as well as the emerging concept of NK cell alteration in the context of viral infections. Understanding the intricate interplay between NK cells and viral infections is crucial for advancing our knowledge of antiviral immune responses and could offer valuable information for the creation of innovative therapeutic approaches to combat viral diseases.
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Affiliation(s)
- Arash Letafati
- Department of Virology, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran
| | - Omid Salahi Ardekani
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran
| | - Mina Naderisemiromi
- Department of Immunology, Faculty of Medicine and Health, The University of Manchester, Manchester, UK
| | - Mehdi Norouzi
- Department of Virology, Faculty of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran
| | | | - Soheil Nik
- School of Medicine, Alborz University of Medical Sciences, Karaj, Alborz, Iran
| | - Sayed-Hamidreza Mozhgani
- Research Center for Clinical Virology, Tehran University of Medical Science, Tehran, Iran.
- Department of Microbiology and Virology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
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3
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de Souza Teles ER, de Araujo Portes J, de Souza W. New morphological observations on the initial events of Toxoplasma gondii entry into host cells. Vet Parasitol 2023; 322:110006. [PMID: 37633244 DOI: 10.1016/j.vetpar.2023.110006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 08/05/2023] [Accepted: 08/09/2023] [Indexed: 08/28/2023]
Abstract
Toxoplasma gondii is an obligate intracellular protozoan of worldwide distribution. It is effective in the infection of various homoeothermic animals of economic importance. The process of T. gondii invasion of host cells occurs in less than 20 s by the active mechanism of penetration. First, a mobile junction is formed due to the association between the apical end of the parasite and the host cell surface. Then, the secretion of invasive and docking proteins allows the formation of the mobile junction before the complete internalization of the parasite. Here, using high-resolution microscopy, it was described new morphological observations of the early events of host cell invasion by tachyzoites of T. gondii. Attempts were made to synchronize the interaction process using low temperatures and treatment of the host cells with cytochalasin D, a drug that interferes with the actin dynamics. Images were obtained showing that the parasite and the host cells seem to release small vesicles with diameters varying from 25 to 100 nm. Furthermore, tunneling nanotubes emerge from the host cell surface and interact with the parasite even at long distance. These observations add new details of adhesion and entry events, such as surface projections of the host cell plasma membrane, pseudopods, and nanotubes radiating from the host cell toward the parasite. In addition, scanning microscopy revealed intense vesiculation, with a morphological characteristic of extracellular microvesicles, during the entry of the tachyzoite into the host cell.
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Affiliation(s)
- Everson Reili de Souza Teles
- Laboratório de Ultraestrutura Celular Hertha Meyer, Centro de Pesquisa em Medicina de Precisão, Instituto de Biofísica Carlos Chagas Filho/Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Juliana de Araujo Portes
- Laboratório de Ultraestrutura Celular Hertha Meyer, Centro de Pesquisa em Medicina de Precisão, Instituto de Biofísica Carlos Chagas Filho/Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Wanderley de Souza
- Laboratório de Ultraestrutura Celular Hertha Meyer, Centro de Pesquisa em Medicina de Precisão, Instituto de Biofísica Carlos Chagas Filho/Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Instituto Nacional de Ciência e Tecnologia em Biologia Estrutural e Bioimagem - INBEB, and Centro Nacional de Biologia Estrutural e Bioimagem, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil; Centro de Estudos Biomédicos-CMABio, Escola Superior de Saúde, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil.
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4
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Barros MHM, Alves PDS. Contribution of the Epstein-Barr virus to the oncogenesis of mature T-cell lymphoproliferative neoplasms. Front Oncol 2023; 13:1240359. [PMID: 37781191 PMCID: PMC10538126 DOI: 10.3389/fonc.2023.1240359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/24/2023] [Indexed: 10/03/2023] Open
Abstract
EBV is a lymphotropic virus, member of the Herpesviridae family that asymptomatically infects more than 90% of the human population, establishing a latent infection in memory B cells. EBV exhibits complex survival and persistence dynamics, replicating its genome through the proliferation of infected B cells or production of the lytic virions. Many studies have documented the infection of T/NK cells by EBV in healthy individuals during and after primary infection. This feature has been confirmed in humanized mouse models. Together these results have challenged the hypothesis that the infection of T/NK cells per se by EBV could be a triggering event for lymphomagenesis. Extranodal NK/T-cell lymphoma (ENKTCL) and Epstein-Barr virus (EBV)-positive nodal T- and NK-cell lymphoma (NKTCL) are two EBV-associated lymphomas of T/NK cells. These two lymphomas display different clinical, histological and molecular features. However, they share two intriguing characteristics: the association with EBV and a geographical prevalence in East Asia and Latin America. In this review we will discuss the genetic characteristics of EBV in order to understand the possible role of this virus in the oncogenesis of ENKTCL and NKTCL. In addition, the main immunohistological, molecular, cytogenetic and epigenetic differences between ENKTCL and NKTCL will be discussed, as well as EBV differences in latency patterns and other viral molecular characteristics.
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Affiliation(s)
| | - Paula Daniela S. Alves
- Oncovirology Laboratory, Bone Marrow Transplantation Center, Instituto Nacional de Câncer (INCA), Rio de Janeiro, RJ, Brazil
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5
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Drieux F, Lemonnier F, Gaulard P. How molecular advances may improve the diagnosis and management of PTCL patients. Front Oncol 2023; 13:1202964. [PMID: 37427095 PMCID: PMC10328093 DOI: 10.3389/fonc.2023.1202964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 05/22/2023] [Indexed: 07/11/2023] Open
Abstract
Peripheral T-cell lymphomas (PTCL) comprised more than 30 rare heterogeneous entities, representing 10 to 15% of adult non-Hodgkin lymphomas. Although their diagnosis is still mainly based on clinical, pathological, and phenotypic features, molecular studies have allowed for a better understanding of the oncogenic mechanisms involved and the refinement of many PTCL entities in the recently updated classifications. The prognosis remains poor for most entities (5-year overall survival < 30%), with current conventional therapies based on anthracyclin-based polychemotherapy regimen, despite many years of clinical trials. The recent use of new targeted therapies appears to be promising for relapsed/refractory patients, such as demethylating agents in T-follicular helper (TFH) PTCL. However further studies are needed to evaluate the proper combination of these drugs in the setting of front-line therapy. In this review, we will summarize the oncogenic events for the main PTCL entities and report the molecular targets that have led to the development of new therapies. We will also discuss the development of innovative high throughput technologies that aid the routine workflow for the histopathological diagnosis and management of PTCL patients.
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Affiliation(s)
- Fanny Drieux
- Service d’Anatomie et de Cytologie Pathologiques, INSERM U1245, Centre Henri Becquerel, Rouen, France
| | - François Lemonnier
- Unité hémopathies Lymphoïdes, Hôpitaux Universitaires Henri Mondor, Assistance Publique des Hôpitaux de Paris, Créteil, France
- Institut Mondor de Recherche Biomédicale, INSERM U955, Université Paris Est Créteil, Créteil, France
| | - Philippe Gaulard
- Institut Mondor de Recherche Biomédicale, INSERM U955, Université Paris Est Créteil, Créteil, France
- Département de Pathologie, Hôpitaux Universitaires Henri Mondor, Assistance Publique des Hôpitaux de Paris, Créteil, France
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6
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Li Y, Basar R, Wang G, Liu E, Moyes JS, Li L, Kerbauy LN, Uprety N, Fathi M, Rezvan A, Banerjee PP, Muniz-Feliciano L, Laskowski TJ, Ensley E, Daher M, Shanley M, Mendt M, Acharya S, Liu B, Biederstädt A, Rafei H, Guo X, Melo Garcia L, Lin P, Ang S, Marin D, Chen K, Bover L, Champlin RE, Varadarajan N, Shpall EJ, Rezvani K. KIR-based inhibitory CARs overcome CAR-NK cell trogocytosis-mediated fratricide and tumor escape. Nat Med 2022; 28:2133-2144. [PMID: 36175679 PMCID: PMC9942695 DOI: 10.1038/s41591-022-02003-x] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 08/09/2022] [Indexed: 01/21/2023]
Abstract
Trogocytosis is an active process that transfers surface material from targeted to effector cells. Using multiple in vivo tumor models and clinical data, we report that chimeric antigen receptor (CAR) activation in natural killer (NK) cells promoted transfer of the CAR cognate antigen from tumor to NK cells, resulting in (1) lower tumor antigen density, thus impairing the ability of CAR-NK cells to engage with their target, and (2) induced self-recognition and continuous CAR-mediated engagement, resulting in fratricide of trogocytic antigen-expressing NK cells (NKTROG+) and NK cell hyporesponsiveness. This phenomenon could be offset by a dual-CAR system incorporating both an activating CAR against the cognate tumor antigen and an NK self-recognizing inhibitory CAR that transferred a 'don't kill me' signal to NK cells upon engagement with their TROG+ siblings. This system prevented trogocytic antigen-mediated fratricide, while sparing activating CAR signaling against the tumor antigen, and resulted in enhanced CAR-NK cell activity.
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Affiliation(s)
- Ye Li
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- UTHealth Graduate School of Biomedical Sciences, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Rafet Basar
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Guohui Wang
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Enli Liu
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Judy S Moyes
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Li Li
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Lucila N Kerbauy
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo, Sao Paulo, Brazil
- Department of Stem Cell Transplantation and Cellular Therapy, Hospital Israelita Albert Einstein, Sao Paulo, Brazil
| | - Nadima Uprety
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mohsen Fathi
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, USA
| | - Ali Rezvan
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, USA
| | - Pinaki P Banerjee
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Luis Muniz-Feliciano
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Tamara J Laskowski
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Emily Ensley
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - May Daher
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mayra Shanley
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mayela Mendt
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sunil Acharya
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Bin Liu
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Alexander Biederstädt
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Medicine III: Hematology and Oncology, Technical University of Munich, Munich, Germany
| | - Hind Rafei
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Xingliang Guo
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Luciana Melo Garcia
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Paul Lin
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Sonny Ang
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - David Marin
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Ken Chen
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Laura Bover
- Department of Genomic Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Immunology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Richard E Champlin
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Navin Varadarajan
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, USA
| | - Elizabeth J Shpall
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Katayoun Rezvani
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
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7
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Céspedes PF, Jainarayanan A, Fernández-Messina L, Valvo S, Saliba DG, Kurz E, Kvalvaag A, Chen L, Ganskow C, Colin-York H, Fritzsche M, Peng Y, Dong T, Johnson E, Siller-Farfán JA, Dushek O, Sezgin E, Peacock B, Law A, Aubert D, Engledow S, Attar M, Hester S, Fischer R, Sánchez-Madrid F, Dustin ML. T-cell trans-synaptic vesicles are distinct and carry greater effector content than constitutive extracellular vesicles. Nat Commun 2022; 13:3460. [PMID: 35710644 PMCID: PMC9203538 DOI: 10.1038/s41467-022-31160-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 06/07/2022] [Indexed: 12/19/2022] Open
Abstract
The immunological synapse is a molecular hub that facilitates the delivery of three activation signals, namely antigen, costimulation/corepression and cytokines, from antigen-presenting cells (APC) to T cells. T cells release a fourth class of signaling entities, trans-synaptic vesicles (tSV), to mediate bidirectional communication. Here we present bead-supported lipid bilayers (BSLB) as versatile synthetic APCs to capture, characterize and advance the understanding of tSV biogenesis. Specifically, the integration of juxtacrine signals, such as CD40 and antigen, results in the adaptive tailoring and release of tSV, which differ in size, yields and immune receptor cargo compared with steadily released extracellular vesicles (EVs). Focusing on CD40L+ tSV as model effectors, we show that PD-L1 trans-presentation together with TSG101, ADAM10 and CD81 are key in determining CD40L vesicular release. Lastly, we find greater RNA-binding protein and microRNA content in tSV compared with EVs, supporting the specialized role of tSV as intercellular messengers.
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Affiliation(s)
- Pablo F Céspedes
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK.
| | - Ashwin Jainarayanan
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK
| | - Lola Fernández-Messina
- Immunology Service, Hospital de la Princesa, Instituto Investigación Sanitaria Princesa, Universidad Autónoma de Madrid, Madrid, Spain
- Intercellular communication in the inflammatory response. Vascular Physiology Area, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Salvatore Valvo
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK
| | - David G Saliba
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK
| | - Elke Kurz
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK
| | - Audun Kvalvaag
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK
| | - Lina Chen
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK
| | - Charity Ganskow
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK
| | - Huw Colin-York
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, The University of Oxford, Oxford, UK
| | - Marco Fritzsche
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, The University of Oxford, Oxford, UK
| | - Yanchun Peng
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, The University of Oxford, Oxford, UK
- Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK
| | - Tao Dong
- MRC Human Immunology Unit, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, The University of Oxford, Oxford, UK
- Chinese Academy of Medical Science (CAMS) Oxford Institute (COI), University of Oxford, Oxford, UK
| | - Errin Johnson
- Sir William Dunn School of Pathology, The University of Oxford, Oxford, UK
| | | | - Omer Dushek
- Sir William Dunn School of Pathology, The University of Oxford, Oxford, UK
| | - Erdinc Sezgin
- Science for Life Laboratory, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | | | | | | | - Simon Engledow
- Oxford Genomics Centre, Wellcome Centre for Human Genetics, The University of Oxford, Oxford, UK
| | - Moustafa Attar
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK
- Oxford Genomics Centre, Wellcome Centre for Human Genetics, The University of Oxford, Oxford, UK
| | - Svenja Hester
- Target Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine, The University of Oxford, Oxford, UK
| | - Roman Fischer
- Target Discovery Institute, Centre for Medicines Discovery, Nuffield Department of Medicine, The University of Oxford, Oxford, UK
| | - Francisco Sánchez-Madrid
- Immunology Service, Hospital de la Princesa, Instituto Investigación Sanitaria Princesa, Universidad Autónoma de Madrid, Madrid, Spain
- Intercellular communication in the inflammatory response. Vascular Physiology Area, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Michael L Dustin
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopedics, Rheumatology and Musculoskeletal Sciences, The University of Oxford, Oxford, UK.
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8
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Reneau JC, Shindiapina P, Braunstein Z, Youssef Y, Ruiz M, Farid S, Hanel W, Brammer JE. Extranodal Natural Killer/T-Cell Lymphomas: Current Approaches and Future Directions. J Clin Med 2022; 11:jcm11102699. [PMID: 35628826 PMCID: PMC9145443 DOI: 10.3390/jcm11102699] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 04/13/2022] [Accepted: 04/29/2022] [Indexed: 11/29/2022] Open
Abstract
Extranodal natural killer/T(NK/T)-cell lymphoma (ENKTL) is a rare subtype of non-Hodgkin lymphoma that typically presents with an isolated nasal mass, but a sizeable minority present with advanced stage disease and have a significantly poorer prognosis. Those with limited disease are standardly treated with chemotherapy and radiation while those with advanced stage disease are treated with L-asparaginase containing chemotherapy regimens. The addition of modern radiation therapy techniques and the incorporation of L-asparaginase into chemotherapy regimens have significantly improved outcomes in this disease, but relapses and death from relapsed disease remain frequent. Given the high rate of relapse, several novel therapies have been evaluated for the treatment of this disease. In this review, we explore the current standard of care for ENKTL as well as novel therapies that have been evaluated for its treatment and the biologic understanding behind these therapies.
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Affiliation(s)
- John C. Reneau
- Division of Hematology, Department of Internal Medicine, James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (J.C.R.); (P.S.); (Y.Y.); (M.R.); (S.F.); (W.H.)
| | - Polina Shindiapina
- Division of Hematology, Department of Internal Medicine, James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (J.C.R.); (P.S.); (Y.Y.); (M.R.); (S.F.); (W.H.)
| | - Zachary Braunstein
- Department of Internal Medicine, Wexner Medical Center, The Ohio State University, Columbus, OH 43210, USA;
| | - Youssef Youssef
- Division of Hematology, Department of Internal Medicine, James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (J.C.R.); (P.S.); (Y.Y.); (M.R.); (S.F.); (W.H.)
| | - Miguel Ruiz
- Division of Hematology, Department of Internal Medicine, James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (J.C.R.); (P.S.); (Y.Y.); (M.R.); (S.F.); (W.H.)
| | - Saira Farid
- Division of Hematology, Department of Internal Medicine, James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (J.C.R.); (P.S.); (Y.Y.); (M.R.); (S.F.); (W.H.)
| | - Walter Hanel
- Division of Hematology, Department of Internal Medicine, James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (J.C.R.); (P.S.); (Y.Y.); (M.R.); (S.F.); (W.H.)
| | - Jonathan E. Brammer
- Division of Hematology, Department of Internal Medicine, James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; (J.C.R.); (P.S.); (Y.Y.); (M.R.); (S.F.); (W.H.)
- Correspondence:
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9
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Vo DN, Leventoux N, Campos-Mora M, Gimenez S, Corbeau P, Villalba M. NK Cells Acquire CCR5 and CXCR4 by Trogocytosis in People Living with HIV-1. Vaccines (Basel) 2022; 10:vaccines10050688. [PMID: 35632444 PMCID: PMC9145773 DOI: 10.3390/vaccines10050688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/21/2022] [Accepted: 04/22/2022] [Indexed: 12/10/2022] Open
Abstract
NK cells play a major role in the antiviral immune response, including against HIV-1. HIV-1 patients have impaired NK cell activity with a decrease in CD56dim NK cells and an increase in the CD56−CD16+ subset, and recently it has been proposed that a population of CD56+NKG2C+KIR+CD57+ cells represents antiviral memory NK cells. Antiretroviral therapy (ART) partly restores the functional activity of this lymphocyte lineage. NK cells when interacting with their targets can gain antigens from them by the process of trogocytosis. Here we show that NK cells can obtain CCR5 and CXCR4, but barely CD4, from T cell lines by trogocytosis in vitro. By UMAP (Uniform Manifold Approximation and Projection), we show that aviremic HIV-1 patients have unique NK cell clusters that include cells expressing CCR5, NKG2C and KIRs, but lack CD57 expression. Viremic patients have a larger proportion of CXCR4+ and CCR5+ NK cells than healthy donors (HD) and this is largely increased in CD107+ cells, suggesting a link between degranulation and trogocytosis. In agreement, UMAP identified a specific NK cell cluster in viremic HIV-1 patients, which contains most of the CD107a+, CCR5+ and CXCR4+ cells. However, this cluster lacks NKG2C expression. Therefore, NK cells can gain CCR5 and CXCR4 by trogocytosis, which depends on degranulation.
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Affiliation(s)
- Dang-Nghiem Vo
- IRMB, University Montpellier, INSERM, 34295 Montpellier, France; (D.-N.V.); (M.C.-M.)
| | - Nicolas Leventoux
- Institute for Human Genetics, CNRS-Montpellier University, UMR9002, 141 Rue de la Cardonille, CEDEX, 34396 Montpellier, France; (N.L.); (S.G.)
| | - Mauricio Campos-Mora
- IRMB, University Montpellier, INSERM, 34295 Montpellier, France; (D.-N.V.); (M.C.-M.)
| | - Sandrine Gimenez
- Institute for Human Genetics, CNRS-Montpellier University, UMR9002, 141 Rue de la Cardonille, CEDEX, 34396 Montpellier, France; (N.L.); (S.G.)
| | - Pierre Corbeau
- Institute for Human Genetics, CNRS-Montpellier University, UMR9002, 141 Rue de la Cardonille, CEDEX, 34396 Montpellier, France; (N.L.); (S.G.)
- Immunology Department, University Hospital, Place du Pr Debré, CEDEX, 30029 Nîmes, France
- Correspondence: (P.C.); (M.V.)
| | - Martin Villalba
- IRMB, University Montpellier, INSERM, 34295 Montpellier, France; (D.-N.V.); (M.C.-M.)
- IRMB, University Montpellier, INSERM, CNRS, CHU Montpellier, 34295 Montpellier, France
- Institut du Cancer Avignon-Provence Sainte-Catherine, 84000 Avignon, France
- Correspondence: (P.C.); (M.V.)
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10
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Hasim MS, Marotel M, Hodgins JJ, Vulpis E, Makinson OJ, Asif S, Shih HY, Scheer AK, MacMillan O, Alonso FG, Burke KP, Cook DP, Li R, Petrucci MT, Santoni A, Fallon PG, Sharpe AH, Sciumè G, Veillette A, Zingoni A, Gray DA, McCurdy A, Ardolino M. When killers become thieves: Trogocytosed PD-1 inhibits NK cells in cancer. SCIENCE ADVANCES 2022; 8:eabj3286. [PMID: 35417234 PMCID: PMC9007500 DOI: 10.1126/sciadv.abj3286] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 02/23/2022] [Indexed: 05/12/2023]
Abstract
Trogocytosis modulates immune responses, with still unclear underlying molecular mechanisms. Using leukemia mouse models, we found that lymphocytes perform trogocytosis at high rates with tumor cells. While performing trogocytosis, both Natural Killer (NK) and CD8+ T cells acquire the checkpoint receptor PD-1 from leukemia cells. In vitro and in vivo investigation revealed that PD-1 on the surface of NK cells, rather than being endogenously expressed, was derived entirely from leukemia cells in a SLAM receptor-dependent fashion. PD-1 acquired via trogocytosis actively suppressed NK cell antitumor immunity. PD-1 trogocytosis was corroborated in patients with clonal plasma cell disorders, where NK cells that stained for PD-1 also stained for tumor cell markers. Our results, in addition to shedding light on a previously unappreciated mechanism underlying the presence of PD-1 on NK and cytotoxic T cells, reveal the immunoregulatory effect of membrane transfer occurring when immune cells contact tumor cells.
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Affiliation(s)
- Mohamed S. Hasim
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- CI3, University of Ottawa, Ottawa, ON, Canada
| | - Marie Marotel
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- CI3, University of Ottawa, Ottawa, ON, Canada
| | - Jonathan J. Hodgins
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- CI3, University of Ottawa, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Elisabetta Vulpis
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia—Fondazione Cenci-Bolognetti, Rome, Italy
| | - Olivia J. Makinson
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- CI3, University of Ottawa, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Sara Asif
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- CI3, University of Ottawa, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Han-Yun Shih
- Neuro-Immune Regulome Unit, National Eye Institute, NIH, Bethesda, MD, USA
| | - Amit K. Scheer
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Olivia MacMillan
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- CI3, University of Ottawa, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Felipe G. Alonso
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Kelly P. Burke
- Department of Medical Oncology, Dana Farber Cancer Institute, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - David P. Cook
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Rui Li
- Department of Medicine, McGill University, Montréal, QC, Canada
- Laboratory of Molecular Oncology, Institut de recherches cliniques de Montréal, Montréal, QC, Canada
| | - Maria Teresa Petrucci
- Department of Cellular Biotechnology and Hematology, “Sapienza” University of Rome, Rome, Italy
| | - Angela Santoni
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia—Fondazione Cenci-Bolognetti, Rome, Italy
- IRCCS Neuromed, Pozzilli, Italy
| | - Padraic G. Fallon
- School of Medicine, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Arlene H. Sharpe
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Evergrande Center for Immunologic Diseases, Harvard Medical School and Brigham and Women’s Hospital, Boston, MA, USA
| | - Giuseppe Sciumè
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia—Fondazione Cenci-Bolognetti, Rome, Italy
| | - André Veillette
- Department of Medicine, McGill University, Montréal, QC, Canada
- Laboratory of Molecular Oncology, Institut de recherches cliniques de Montréal, Montréal, QC, Canada
- Department of Medicine, University of Montréal, Montréal, QC, Canada
| | - Alessandra Zingoni
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia—Fondazione Cenci-Bolognetti, Rome, Italy
| | - Douglas A. Gray
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
| | - Arleigh McCurdy
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- Division of Hematology, Department of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Michele Ardolino
- Cancer Therapeutics Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
- CI3, University of Ottawa, Ottawa, ON, Canada
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON, Canada
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11
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Zhao S, Zhang L, Xiang S, Hu Y, Wu Z, Shen J. Gnawing Between Cells and Cells in the Immune System: Friend or Foe? A Review of Trogocytosis. Front Immunol 2022; 13:791006. [PMID: 35185886 PMCID: PMC8850298 DOI: 10.3389/fimmu.2022.791006] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 01/14/2022] [Indexed: 12/27/2022] Open
Abstract
Trogocytosis occurs when one cell contacts and quickly nibbles another cell and is characterized by contact between living cells and rapid transfer of membrane fragments with functional integrity. Many immune cells are involved in this process, such as T cells, B cells, NK cells, APCs. The transferred membrane molecules including MHC molecules, costimulatory molecules, receptors, antigens, etc. An increasing number of studies have shown that trogocytosis plays an important role in the immune system and the occurrence of relevant diseases. Thus, whether trogocytosis is a friend or foe of the immune system is puzzling, and the precise mechanism underlying it has not yet been fully elucidated. Here, we provide an integrated view of the acquired findings on the connections between trogocytosis and the immune system.
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Affiliation(s)
- Siyu Zhao
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Disease Control (SYSU), Ministry of Education, Guangzhou, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, China
| | - Lichao Zhang
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Disease Control (SYSU), Ministry of Education, Guangzhou, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, China
| | - Suoyu Xiang
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Disease Control (SYSU), Ministry of Education, Guangzhou, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, China
| | - Yunyi Hu
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Disease Control (SYSU), Ministry of Education, Guangzhou, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, China
| | - Zhongdao Wu
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Disease Control (SYSU), Ministry of Education, Guangzhou, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, China
| | - Jia Shen
- Department of Parasitology of Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Tropical Disease Control (SYSU), Ministry of Education, Guangzhou, China.,Provincial Engineering Technology Research Center for Biological Vector Control, Guangzhou, China
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12
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Hathuc V, Kreisel F. Genetic Landscape of Peripheral T-Cell Lymphoma. Life (Basel) 2022; 12:life12030410. [PMID: 35330161 PMCID: PMC8954173 DOI: 10.3390/life12030410] [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: 02/23/2022] [Accepted: 03/06/2022] [Indexed: 11/16/2022] Open
Abstract
Peripheral T-Cell lymphoma (PTCL) comprises a heterogenous group of uncommon lymphomas derived from mature, post-thymic or “peripheral” T- and natural killer cells. The World Health Organization (WHO) emphasizes a multiparameter approach in the diagnosis and subclassification of these neoplasms, integrating clinical, morphologic, immunophenotypic, and genetic features into the final diagnosis. Clinical presentation is particularly important due to histologic, immunophenotypic and genetic variations within established subtypes, and no convenient immunophenotypic marker of monoclonality exists. In recent years, widespread use of gene expression profiling and next-generation sequencing (NGS) techniques have contributed to an improved understanding of the pathobiology in PTCLs, and these have been incorporated into the 2016 revised WHO classification of mature T- and NK-cell neoplasms which now encompasses nearly 30 distinct entities. This review discusses the genetic landscape of PTCL and its role in subclassification, prognosis, and potential targeted therapy. In addition to discussing T-Cell lymphoma subtypes with relatively well-defined or relevant genetic aberrancies, special attention is given to genetic advances in T-Cell lymphomas of T follicular helper cell (TFH) origin, highlighting genetic overlaps between angioimmunoblastic T-Cell lymphoma (AITL), follicular T-Cell lymphoma, and nodal peripheral T-Cell lymphoma with a TFH phenotype. Furthermore, genetic drivers will be discussed for ALK-negative anaplastic large cell lymphomas and their role in differentiating these from CD30+ peripheral T-Cell lymphoma, not otherwise specified (NOS) and primary cutaneous anaplastic large cell lymphoma. Lastly, a closer look is given to genetic pathways in peripheral T-Cell lymphoma, NOS, which may guide in teasing out more specific entities in a group of T-Cell lymphomas that represents the most common subcategory and is sometimes referred to as a “wastebasket” category.
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13
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Sun KH(M, Wong YT(H, Cheung KM(C, Yuen C(M, Chan YT(T, Lai WY(J, Chao C(D, Fan WS(K, Chow YK(K, Law MF, Tam HC(T. Update on Molecular Diagnosis in Extranodal NK/T-Cell Lymphoma and Its Role in the Era of Personalized Medicine. Diagnostics (Basel) 2022; 12:diagnostics12020409. [PMID: 35204500 PMCID: PMC8871212 DOI: 10.3390/diagnostics12020409] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/23/2022] [Accepted: 01/28/2022] [Indexed: 02/06/2023] Open
Abstract
Natural killer (NK)/T-cell lymphoma (NKTCL) is an aggressive malignancy with unique epidemiological, histological, molecular, and clinical characteristics. It occurs in two pathological forms, namely, extranodal NKTCL (ENKTCL) and aggressive NK leukemia, according to the latest World Health Organization (WHO) classification. Epstein–Barr virus (EBV) infection has long been proposed as the major etiology of lymphomagenesis. The adoption of high-throughput sequencing has allowed us to gain more insight into the molecular mechanisms of ENKTCL, which largely involve chromosome deletion and aberrations in Janus kinase (JAK)-signal transducer and activator of transcription (STAT), programmed cell death protein-1 (PD-1)/PD-ligand 1 (PD-L1) pathways, as well as mutations in tumor suppressor genes. The molecular findings could potentially influence the traditional chemoradiotherapy approach, which is known to be associated with significant toxicity. This article will review the latest molecular findings in NKTCL and recent advances in the field of molecular diagnosis in NKTCL. Issues of quality control and technical difficulties will also be discussed, along with future prospects in the molecular diagnosis and treatment of NKTCL.
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Affiliation(s)
- Ka-Hei (Murphy) Sun
- Division of Hematopathology, Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, Hong Kong; (K.-H.S.); (C.Y.)
| | | | - Ka-Man (Carmen) Cheung
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong; (K.-M.C.); (Y.-T.C.); (W.-Y.L.); (C.C.); (W.-S.F.); (Y.-K.C.); (H.-C.T.)
| | - Carmen (Michelle) Yuen
- Division of Hematopathology, Department of Anatomical and Cellular Pathology, Prince of Wales Hospital, Hong Kong; (K.-H.S.); (C.Y.)
| | - Yun-Tat (Ted) Chan
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong; (K.-M.C.); (Y.-T.C.); (W.-Y.L.); (C.C.); (W.-S.F.); (Y.-K.C.); (H.-C.T.)
| | - Wing-Yan (Jennifer) Lai
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong; (K.-M.C.); (Y.-T.C.); (W.-Y.L.); (C.C.); (W.-S.F.); (Y.-K.C.); (H.-C.T.)
| | - Chun (David) Chao
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong; (K.-M.C.); (Y.-T.C.); (W.-Y.L.); (C.C.); (W.-S.F.); (Y.-K.C.); (H.-C.T.)
| | - Wing-Sum (Katie) Fan
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong; (K.-M.C.); (Y.-T.C.); (W.-Y.L.); (C.C.); (W.-S.F.); (Y.-K.C.); (H.-C.T.)
| | - Yuen-Kiu (Karen) Chow
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong; (K.-M.C.); (Y.-T.C.); (W.-Y.L.); (C.C.); (W.-S.F.); (Y.-K.C.); (H.-C.T.)
| | - Man-Fai Law
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong; (K.-M.C.); (Y.-T.C.); (W.-Y.L.); (C.C.); (W.-S.F.); (Y.-K.C.); (H.-C.T.)
- Correspondence:
| | - Ho-Chi (Tommy) Tam
- Department of Medicine and Therapeutics, Prince of Wales Hospital, Hong Kong; (K.-M.C.); (Y.-T.C.); (W.-Y.L.); (C.C.); (W.-S.F.); (Y.-K.C.); (H.-C.T.)
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14
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Stress-Induced Epstein-Barr Virus Reactivation. Biomolecules 2021; 11:biom11091380. [PMID: 34572593 PMCID: PMC8470332 DOI: 10.3390/biom11091380] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/15/2021] [Accepted: 09/16/2021] [Indexed: 12/18/2022] Open
Abstract
Epstein-Barr virus (EBV) is typically found in a latent, asymptomatic state in immunocompetent individuals. Perturbations of the host immune system can stimulate viral reactivation. Furthermore, there are a myriad of EBV-associated illnesses including various cancers, post-transplant lymphoproliferative disease, and autoimmune conditions. A thorough understanding of this virus, and the interplay between stress and the immune system, is essential to establish effective treatment. This review will provide a summary of the interaction between both psychological and cellular stressors resulting in EBV reactivation. It will examine mechanisms by which EBV establishes and maintains latency and will conclude with a brief overview of treatments targeting EBV.
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15
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Epstein-Barr Virus-Associated T- and NK-Cell Lymphoproliferative Diseases: A Review of Clinical and Pathological Features. Cancers (Basel) 2021; 13:cancers13133315. [PMID: 34282778 PMCID: PMC8268319 DOI: 10.3390/cancers13133315] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/23/2021] [Accepted: 06/29/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary In most Epstein–Barr virus (EBV)-infected individuals, the virus establishes a lifelong latent infection with no specific clinical manifestation. However, EBV primary infection and secondary reactivation may cause various EBV-associated lymphoproliferative disorders (LPD), including hematologic malignancies. Among them, EBV-positive T/NK LPD are uncommon diseases defined by the proliferation of T- or NK-cells infected by EBV, more commonly encountered in Asians and Latin Americans. They encompass a spectrum of disorders ranging from indolent reactive lesions to malignant and aggressive diseases. Despite novel insights from high-throughput molecular studies, the pathogenesis of these disorders is not well understood, and EBV-positive T/NK LPD diagnoses remain challenging due to their rarity and considerable overlap. Indeed, this article discusses new insights into EBV-positive T/NK LPD and focuses on diagnosis challenges, describing the difficulties to clarify the borders between overlapping LPD subtypes. Abstract Epstein–Barr virus (EBV) is a ubiquitous virus detected in up to 95% of the general population. Most people are asymptomatic, while some may develop a wide range of EBV-associated lymphoproliferative disorders (LPD). Among them, EBV-positive T/NK LPD are uncommon diseases defined by the proliferation of T- or NK-cells infected by EBV. The 2017 World Health Organization (WHO) classification recognizes the following entities characterized by different outcomes: chronic active EBV infection of T- or NK-cell types (cutaneous and systemic forms), systemic EBV-positive T-cell lymphoma of childhood, EBV-positive aggressive NK-cell leukemia, extra nodal NK/T-cell lymphoma nasal type, and the new provisional entity known as primary EBV-positive nodal T/NK-cell lymphoma. In addition, EBV associated-hemophagocytic lymphohistiocytosis is part of EBV-positive T/NK LPD, but has not been included in the WHO classification due to its reactive nature. Despite novel insights from high-throughput molecular studies, EBV-positive NK/T-cell LPD diagnoses remain challenging, especially because of their rarity and overlap. Until now, an accurate EBV-positive NK/T LPD diagnosis has been based on its clinical presentation and course correlated with its histological features. This review aims to summarize clinical, pathological and molecular features of EBV-positive T/NK LPD subtypes and to provide an overview of new understandings regarding these rare disorders.
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16
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Extranodal NK/T-Cell Lymphoma, Nasal Type: Genetic, Biologic, and Clinical Aspects with a Central Focus on Epstein-Barr Virus Relation. Microorganisms 2021; 9:microorganisms9071381. [PMID: 34202088 PMCID: PMC8304202 DOI: 10.3390/microorganisms9071381] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 06/21/2021] [Indexed: 12/18/2022] Open
Abstract
Extranodal NK/T-Cell Lymphoma, nasal type (ENKTL-NT) has some salient aspects. The lymphoma is commonly seen in Eastern Asia, has progressive necrotic lesions in the nasal cavity, makes midfacial destructive lesions, and shows poor prognosis. The lymphoma cell is originated from either NK- or γδ T-cells, which express CD56. Since the authors first demonstrated the existence of Epstein–Barr virus (EBV) DNA and EBV oncogenic proteins in lymphoma cells, ENKTL-NT has been recognized as an EBV-associated malignancy. Because the angiocentric and polymorphous lymphoma cells are mixed with inflammatory cells on a necrotic background, the diagnosis of ENKTL-NT requires CD56 immunostaining and EBER in situ hybridization. In addition, serum the EBV DNA level is useful for the diagnosis and monitoring of ENKTL-NT. Although ENKTL-NT is refractory lymphoma, the prognosis is improved by the development of therapies such as concomitant chemoradiotherapy. The basic research reveals that a wide variety of intracellular/cell surface molecules, cytokines, chemokines, and micro RNAs are involved in lymphomagenesis, and some of them are related to EBV. Understanding lymphoma behavior introduces new therapeutic strategies, such as the usage of immune checkpoint inhibitors, peptide vaccines, and molecular targeting therapy. This review addresses recent advances in basic and clinical aspects of ENKTL-NT, especially its relation to EBV features.
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17
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Reed J, Reichelt M, Wetzel SA. Lymphocytes and Trogocytosis-Mediated Signaling. Cells 2021; 10:1478. [PMID: 34204661 PMCID: PMC8231098 DOI: 10.3390/cells10061478] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 12/21/2022] Open
Abstract
Trogocytosis is the intercellular transfer of membrane and membrane-associated molecules. This underappreciated process has been described in a variety of biological settings including neuronal remodeling, fertilization, viral and bacterial spread, and cancer, but has been most widely studied in cells of the immune system. Trogocytosis is performed by multiple immune cell types, including basophils, macrophages, dendritic cells, neutrophils, natural killer cells, B cells, γδ T cells, and CD4+ and CD8+ αβ T cells. Although not expressed endogenously, the presence of trogocytosed molecules on cells has the potential to significantly impact an immune response and the biology of the individual trogocytosis-positive cell. Many studies have focused on the ability of the trogocytosis-positive cells to interact with other immune cells and modulate the function of responders. Less understood and arguably equally important is the impact of these molecules on the individual trogocytosis-positive cell. Molecules that have been reported to be trogocytosed by cells include cognate ligands for receptors on the individual cell, such as activating NK cell ligands and MHC:peptide. These trogocytosed molecules have been shown to interact with receptors on the trogocytosis-positive cell and mediate intracellular signaling. In this review, we discuss the impact of this trogocytosis-mediated signaling on the biology of the individual trogocytosis-positive cell by focusing on natural killer cells and CD4+ T lymphocytes.
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Affiliation(s)
- Jim Reed
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA; (J.R.); (M.R.)
| | - Madison Reichelt
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA; (J.R.); (M.R.)
| | - Scott A. Wetzel
- Division of Biological Sciences, University of Montana, Missoula, MT 59812, USA; (J.R.); (M.R.)
- Center for Environmental Health Sciences, University of Montana, Missoula, MT 59812, USA
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18
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Miyake K, Karasuyama H. The Role of Trogocytosis in the Modulation of Immune Cell Functions. Cells 2021; 10:cells10051255. [PMID: 34069602 PMCID: PMC8161413 DOI: 10.3390/cells10051255] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/15/2021] [Accepted: 05/17/2021] [Indexed: 12/16/2022] Open
Abstract
Trogocytosis is an active process, in which one cell extracts the cell fragment from another cell, leading to the transfer of cell surface molecules, together with membrane fragments. Recent reports have revealed that trogocytosis can modulate various biological responses, including adaptive and innate immune responses and homeostatic responses. Trogocytosis is evolutionally conserved from protozoan parasites to eukaryotic cells. In some cases, trogocytosis results in cell death, which is utilized as a mechanism for antibody-dependent cytotoxicity (ADCC). In other cases, trogocytosis-mediated intercellular protein transfer leads to both the acquisition of novel functions in recipient cells and the loss of cellular functions in donor cells. Trogocytosis in immune cells is typically mediated by receptor–ligand interactions, including TCR–MHC interactions and Fcγ receptor-antibody-bound molecule interactions. Additionally, trogocytosis mediates the transfer of MHC molecules to various immune and non-immune cells, which confers antigen-presenting activity on non-professional antigen-presenting cells. In this review, we summarize the recent advances in our understanding of the role of trogocytosis in immune modulation.
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19
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Kongsomros S, Manopwisedjaroen S, Chaopreecha J, Wang SF, Borwornpinyo S, Thitithanyanont A. Rapid and Efficient Cell-to-Cell Transmission of Avian Influenza H5N1 Virus in MDCK Cells Is Achieved by Trogocytosis. Pathogens 2021; 10:483. [PMID: 33923524 PMCID: PMC8074074 DOI: 10.3390/pathogens10040483] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/31/2021] [Accepted: 04/07/2021] [Indexed: 01/14/2023] Open
Abstract
Viruses have developed direct cell-to-cell transfer strategies to enter target cells without being released to escape host immune responses and antiviral treatments. These strategies are more rapid and efficient than transmission through indirect mechanisms of viral infection between cells. Here, we demonstrate that an H5N1 influenza virus can spread via direct cell-to-cell transfer in Madin-Darby canine kidney (MDCK) cells. We compared cell-to-cell transmission of the H5N1 virus to that of a human influenza H1N1 virus. The H5N1 virus has been found to spread to recipient cells faster than the human influenza H1N1 virus. Additionally, we showed that plasma membrane exchange (trogocytosis) occurs between co-cultured infected donor cells and uninfected recipient cells early point, allowing the intercellular transfer of viral material to recipient cells. Notably, the H5N1 virus induced higher trogocytosis levels than the H1N1 virus, which could explain the faster cell-to-cell transmission rate of H5N1. Importantly, this phenomenon was also observed in A549 human lung epithelial cells, which are representative cells in the natural infection site. Altogether, our results provide evidence demonstrating that trogocytosis could be the additional mechanism utilized by the H5N1 virus for rapid and efficient cell-to-cell transmission.
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Affiliation(s)
- Supasek Kongsomros
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (S.K.); (S.M.); (J.C.)
| | - Suwimon Manopwisedjaroen
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (S.K.); (S.M.); (J.C.)
| | - Jarinya Chaopreecha
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (S.K.); (S.M.); (J.C.)
| | - Sheng-Fan Wang
- Department of Medical Laboratory Sciences and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Suparerk Borwornpinyo
- Excellence Center for Drug Discovery (ECDD), Faculty of Science, Mahidol University, Bangkok 10400, Thailand;
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Arunee Thitithanyanont
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand; (S.K.); (S.M.); (J.C.)
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20
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EBV and the Pathogenesis of NK/T Cell Lymphoma. Cancers (Basel) 2021; 13:cancers13061414. [PMID: 33808787 PMCID: PMC8003370 DOI: 10.3390/cancers13061414] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/13/2021] [Accepted: 03/17/2021] [Indexed: 12/23/2022] Open
Abstract
Epstein-Barr virus (EBV) is a ubiquitous gamma herpes virus with tropism for B cells. EBV is linked to the pathogenesis of B cell, T cell and NK cell lymphoproliferations, with extranodal NK/T cell lymphoma, nasal type (ENKTCL) being the prototype of an EBV-driven lymphoma. ENKTCL is an aggressive neoplasm, particularly widespread in East Asia and the native population of Latin America, which suggests a strong genetic predisposition. The link between ENKTCL and different populations has been partially explored. EBV genome sequencing analysis recognized two types of strains and identified variants of the latent membrane protein 1 (LMP1), which revealed different oncogenic potential. In general, most ENKTCL patients carry EBV type A with LMP1 wild type, although the LMP1 variant with a 30 base pair deletion is also common, especially in the EBV type B, where it is necessary for oncogenic transformation. Contemporary high-throughput mutational analyses have discovered recurrent gene mutations leading to activation of the JAK-STAT pathway, and mutations in other genes such as BCOR, DDX3X and TP53. The genomic landscape in ENKTCL highlights mechanisms of lymphomagenesis, such as immune response evasion, secondary to alterations in signaling pathways or epigenetics that directly or indirectly interfere with oncogenes or tumor suppressor genes. This overview discusses the most important findings of EBV pathogenesis and genetics in ENKTCL.
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21
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Fournier B, Boutboul D, Bruneau J, Miot C, Boulanger C, Malphettes M, Pellier I, Dunogué B, Terrier B, Suarez F, Blanche S, Castelle M, Winter S, Delecluse HJ, Molina T, Picard C, Ehl S, Moshous D, Galicier L, Barlogis V, Fischer A, Neven B, Latour S. Rapid identification and characterization of infected cells in blood during chronic active Epstein-Barr virus infection. J Exp Med 2021; 217:152032. [PMID: 32812031 PMCID: PMC7596820 DOI: 10.1084/jem.20192262] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 05/29/2020] [Accepted: 07/09/2020] [Indexed: 12/13/2022] Open
Abstract
Epstein-Barr virus (EBV) preferentially infects epithelial cells and B lymphocytes and sometimes T and NK lymphocytes. Persistence of EBV-infected cells results in severe lymphoproliferative disorders (LPDs). Diagnosis of EBV-driven T or NK cell LPD and chronic active EBV diseases (CAEBV) is difficult, often requiring biopsies. Herein, we report a flow-FISH cytometry assay that detects cells expressing EBV-encoded small RNAs (EBERs), allowing rapid identification of EBV-infected cells among PBMCs. EBV-infected B, T, and/or NK cells were detectable in various LPD conditions. Diagnosis of CAEBV in 22 patients of Caucasian and African origins was established. All exhibited circulating EBV-infected T and/or NK cells, highlighting that CAEBV is not restricted to native American and Asian populations. Proportions of EBV-infected cells correlated with blood EBV loads. We showed that EBV-infected T cells had an effector memory activated phenotype, whereas EBV-infected B cells expressed plasma cell differentiation markers. Thus, this method achieves accurate and unambiguous diagnoses of different forms of EBV-driven LPD and represents a powerful tool to study their pathophysiological mechanisms.
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Affiliation(s)
- Benjamin Fournier
- Laboratory of Lymphocyte Activation and Susceptibility to EBV Infection, Institut National de la Santé et de la Recherche Médicale UMR 1163, Imagine Institute, Paris, France.,Université de Paris, Paris, France
| | - David Boutboul
- Department of Clinical Immunology, Saint-Louis Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Julie Bruneau
- Université de Paris, Paris, France.,Department of Pathology, Necker-Enfants Malades Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Charline Miot
- Department of Pediatric Immunology Hematology and Oncology, University Hospital, Angers, France
| | - Cécile Boulanger
- Institut Roi Albert II, Cancerology and Hematology Departments, University Clinics Saint-Luc Hospital, Brussels, Belgium
| | - Marion Malphettes
- Department of Clinical Immunology, Saint-Louis Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Isabelle Pellier
- Department of Pediatric Immunology Hematology and Oncology, University Hospital, Angers, France
| | - Bertrand Dunogué
- Department of Internal Medicine, Cochin Hospital, National Referral Centre for Systemic and Autoimmune Diseases, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Benjamin Terrier
- Department of Internal Medicine, Cochin Hospital, National Referral Centre for Systemic and Autoimmune Diseases, Cochin Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Felipe Suarez
- Department of Adult Hematology, Necker-Enfants Malades Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Stéphane Blanche
- Department of Pediatric Immunology, Hematology and Rheumatology, Necker-Enfants Malades Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Martin Castelle
- Department of Pediatric Immunology, Hematology and Rheumatology, Necker-Enfants Malades Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Sarah Winter
- Department of Pediatric Immunology, Hematology and Rheumatology, Necker-Enfants Malades Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Henri-Jacques Delecluse
- Unit F100, Institut National de la Santé et de la Recherche Médicale U1074, Deutsches Krebsforschungszentrum, German Cancer Research Center, Heidelberg, Germany
| | - Thierry Molina
- Université de Paris, Paris, France.,Department of Pathology, Necker-Enfants Malades Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Capucine Picard
- Laboratory of Lymphocyte Activation and Susceptibility to EBV Infection, Institut National de la Santé et de la Recherche Médicale UMR 1163, Imagine Institute, Paris, France.,Université de Paris, Paris, France.,Study Center for Primary Immunodeficiencies, Necker-Enfants Malades Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Stephan Ehl
- Institute for Immunodeficiency-Center for Chronic Immunodeficiency, Department of Pediatrics and Adolescent Medicine, Medical Center - Faculty of Medicine, University of Freiburg, Germany
| | - Despina Moshous
- Université de Paris, Paris, France.,Department of Pediatric Immunology, Hematology and Rheumatology, Necker-Enfants Malades Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Lionel Galicier
- Department of Clinical Immunology, Saint-Louis Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Vincent Barlogis
- Department of Pediatric Hematology-Oncology, La Timone Hospital, Marseille, France
| | - Alain Fischer
- Université de Paris, Paris, France.,Department of Pediatric Immunology, Hematology and Rheumatology, Necker-Enfants Malades Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France.,Collège de France, Paris, France.,Institut National de la Santé et de la Recherche Médicale UMR 1163, Paris, France
| | - Bénédicte Neven
- Université de Paris, Paris, France.,Department of Pediatric Immunology, Hematology and Rheumatology, Necker-Enfants Malades Hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - Sylvain Latour
- Laboratory of Lymphocyte Activation and Susceptibility to EBV Infection, Institut National de la Santé et de la Recherche Médicale UMR 1163, Imagine Institute, Paris, France.,Université de Paris, Paris, France
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22
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Chronic Active Epstein-Barr Virus Infection: The Elucidation of the Pathophysiology and the Development of Therapeutic Methods. Microorganisms 2021; 9:microorganisms9010180. [PMID: 33467742 PMCID: PMC7829705 DOI: 10.3390/microorganisms9010180] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 11/17/2022] Open
Abstract
Chronic active Epstein-Barr virus infection (CAEBV) is a disease where Epstein-Barr virus (EBV)-infected T- or NK-cells are activated and proliferate clonally. The symptoms of this dual-faced disease include systemic inflammation and multiple organ failures caused by the invasion of infected cells: inflammation and neoplasm. At present, the only effective treatment strategy to eradicate EBV-infected cells is allogeneic stem cell transplantation. Lately, the investigation into the disease's pathogenic mechanism and pathophysiology has been advancing. In this review, I will evaluate the new definition in the 2017 WHO classification, present the advancements in the study of CAEBV, and unfold the future direction.
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23
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Fujiwara S, Nakamura H. Chronic Active Epstein-Barr Virus Infection: Is It Immunodeficiency, Malignancy, or Both? Cancers (Basel) 2020; 12:cancers12113202. [PMID: 33143184 PMCID: PMC7692233 DOI: 10.3390/cancers12113202] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/17/2020] [Accepted: 10/27/2020] [Indexed: 12/26/2022] Open
Abstract
Simple Summary Chronic active Epstein–Barr virus (EBV) infection (CAEBV) is a rare syndrome of unknown etiology characterized by prolonged infectious mononucleosis-like symptoms and proliferation of EBV-infected T and/or natural killer cells. CAEBV has been primarily reported in East Asia and Latin America, suggesting a genetic predisposition in its pathogenesis. The clinical course of CAEBV is heterogeneous ranging from an indolent and occasionally self-limiting disease to an aggressive and fatal condition, but its prognosis is generally poor. This heterogeneous clinical picture does not suggest a simple etiology for the syndrome. Clinicopathological investigations of CAEBV suggest that it has aspects of both malignant neoplasm and immunodeficiency. This article summarizes the latest findings on CAEBV and discusses critical unsolved questions regarding its pathogenesis and disease concept. Abstract Chronic active Epstein–Barr virus (EBV) infection (CAEBV) is a rare syndrome characterized by prolonged infectious mononucleosis-like symptoms and elevated peripheral blood EBV DNA load in apparently immunocompetent persons. CAEBV has been primarily reported in East Asia and Latin America, suggesting a genetic predisposition in its pathogenesis. In most cases of CAEBV, EBV induces proliferation of its unusual host cells, T or natural killer (NK) cells. The clinical course of CAEBV is heterogeneous; some patients show an indolent course, remaining in a stable condition for years, whereas others show an aggressive course with a fatal outcome due to hemophagocytic lymphohistiocytosis, multiple organ failure, or progression to leukemia/lymphoma. The pathogenesis of CAEBV is unclear and clinicopathological investigations suggest that it has aspects of both malignant neoplasm and immunodeficiency. Recent genetic analyses of both viral and host genomes in CAEBV patients have led to discoveries that are improving our understanding of the nature of this syndrome. This article summarizes the latest findings on CAEBV and discusses critical unsolved questions regarding its pathogenesis and disease concept.
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Affiliation(s)
- Shigeyoshi Fujiwara
- Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Tokyo 173-8610, Japan
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan;
- Correspondence:
| | - Hiroyuki Nakamura
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo 157-8535, Japan;
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24
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Kongsomros S, Thanunchai M, Manopwisedjaroen S, Na-Ek P, Wang SF, Taechalertpaisarn T, Thitithanyanont A. Trogocytosis with monocytes associated with increased α2,3 sialic acid expression on B cells during H5N1 influenza virus infection. PLoS One 2020; 15:e0239488. [PMID: 32946496 PMCID: PMC7500609 DOI: 10.1371/journal.pone.0239488] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 09/07/2020] [Indexed: 11/18/2022] Open
Abstract
The immunopathogenesis of H5N1 virus has been studied intensively since it caused cross-species infection and induced high mortality to human. We previously observed the interaction between monocytes and B cells, which increased the susceptibility of B cell to H5N1 virus infection after a co-culture. Levels of α2,3 sialic acid (avian flu receptor) were also significantly increased on B cell surface in this co-culture model with unclear explanation. In this study, we aimed to determine the possible mechanism that responded for this increase in α2,3 sialic acid on B cells. Acquisition of α2,3 SA by B cells via cell contact-dependent trogocytosis was proposed. Results showed that the lack of α2,3 SA was detected on B cell surface, and B cells acquired membrane-bound α2,3 SA molecules from monocytes in H5N1-infected co-cultures. Occurrence of membrane exchange mainly relied on H5N1 infection and cell-cell contact as opposed to a mock infection and transwell. The increase in α2,3 SA on B cell surface mediated by trogocytosis was associated with the enhanced susceptibility to H5N1 infection. These observations thus provide the evidence that H5N1 influenza virus may utilize trogocytosis to expand its cell tropism and spread to immune cells despite the lack of avian flu receptor.
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Affiliation(s)
- Supasek Kongsomros
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Maytawan Thanunchai
- Department of Clinical Pathology, Faculty of Medicine, Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
| | | | - Prasit Na-Ek
- School of Medicine, Walailak University, Thasala, Nakhon Si Thammarat, Thailand
| | - Sheng-Fan Wang
- Department of Medical Laboratory Sciences and Biotechnology, College of Health Sciences, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | | | - Arunee Thitithanyanont
- Department of Microbiology, Faculty of Science, Mahidol University, Bangkok, Thailand
- * E-mail:
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25
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Abstract
The continuous interactions between host and pathogens during their coevolution have shaped both the immune system and the countermeasures used by pathogens. Natural killer (NK) cells are innate lymphocytes that are considered central players in the antiviral response. Not only do they express a variety of inhibitory and activating receptors to discriminate and eliminate target cells but they can also produce immunoregulatory cytokines to alert the immune system. Reciprocally, several unrelated viruses including cytomegalovirus, human immunodeficiency virus, influenza virus, and dengue virus have evolved a multitude of mechanisms to evade NK cell function, such as the targeting of pathways for NK cell receptors and their ligands, apoptosis, and cytokine-mediated signaling. The studies discussed in this article provide further insights into the antiviral function of NK cells and the pathways involved, their constituent proteins, and ways in which they could be manipulated for host benefit.
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Affiliation(s)
- Mathieu Mancini
- Department of Human Genetics, McGill University, Montreal, Quebec H3A 0C7, Canada;,
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec H3G 0B1, Canada
| | - Silvia M. Vidal
- Department of Human Genetics, McGill University, Montreal, Quebec H3A 0C7, Canada;,
- McGill University Research Centre on Complex Traits, McGill University, Montreal, Quebec H3G 0B1, Canada
- Department of Medicine, McGill University, Montreal, Quebec H4A 3J1, Canada
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26
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Wang X, Qiao D, Chen L, Xu M, Chen S, Huang L, Wang F, Chen Z, Cai J, Fu L. Chemotherapeutic drugs stimulate the release and recycling of extracellular vesicles to assist cancer cells in developing an urgent chemoresistance. Mol Cancer 2019; 18:182. [PMID: 31830995 PMCID: PMC6907227 DOI: 10.1186/s12943-019-1114-z] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 12/02/2019] [Indexed: 01/07/2023] Open
Abstract
Background Chemotherapy is a widely used treatment for cancer. However, the development of acquired multidrug resistance (MDR) is a serious issue. Emerging evidence has shown that the extracellular vesicles (EVs) mediate MDR, but the underlying mechanism remains unclear, especially the effects of chemotherapeutic agents on this process. Methods Extracellular vesicles isolation was performed by differential centrifugation. The recipient cells that acquired ATP-binding cassette sub-family B member 1 (ABCB1) proteins were sorted out from co-cultures according to a stringent multi-parameter gating strategy by fluorescence-activated cell sorting (FACS). The transfer rate of ABCB1 was measured by flow cytometry. The xenograft tumor models in mice were established to evaluate the transfer of ABCB1 in vivo. Gene expression was detected by real-time PCR and Western blotting. Results Herein, we show that a transient exposure to chemotherapeutic agents can strikingly increase Rab8B-mediated release of extracellular vesicles (EVs) containing ABCB1 from drug-resistant cells, and accelerate these EVs to circulate back onto plasma membrane of sensitive tumor cells via the down-regulation of Rab5. Therefore, intercellular ABCB1 transfer is significantly enhanced; sensitive recipient cells acquire a rapid but unsustainable resistance to evade the cytotoxicity of chemotherapeutic agents. More fascinatingly, in the xenograft tumor models, chemotherapeutical drugs also locally or distantly increase the transfer of ABCB1 molecules. Furthermore, some Non-small-cell lung carcinoma (NSCLC) patients who are undergoing primary chemotherapy have a rapid increase of ABCB1 protein in their monocytes, and this is obviously associated with poor chemotherapeutic efficacy. Conclusions Chemotherapeutic agents stimulate the secretion and recycling of ABCB1-enriched EVs through the dysregulation of Rab8B and Rab5, leading to a significant increase of ABCB1 intercellular transfer, thus assisting sensitive cancer cells to develop an urgent resistant phenotype. Our findings provide a new molecular mechanism of how chemotherapeutic drugs assist sensitive cancer cells in acquiring an urgent resistance.
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Affiliation(s)
- Xiaokun Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Dongjuan Qiao
- Department of Chemistry, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Likun Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Meng Xu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Shupeng Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Liyan Huang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Fang Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Zhen Chen
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China
| | - Jiye Cai
- Department of Chemistry, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Liwu Fu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, 510060, China.
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27
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Viral Infection of Human Natural Killer Cells. Viruses 2019; 11:v11030243. [PMID: 30870969 PMCID: PMC6466310 DOI: 10.3390/v11030243] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 03/05/2019] [Accepted: 03/07/2019] [Indexed: 12/12/2022] Open
Abstract
Natural killer (NK) cells are essential in the early immune response against viral infections, in particular through clearance of virus-infected cells. In return, viruses have evolved multiple mechanisms to evade NK cell-mediated viral clearance. Several unrelated viruses, including influenza virus, respiratory syncytial virus, and human immunodeficiency virus, can directly interfere with NK cell functioning through infection of these cells. Viral infection can lead to immune suppression, either by downregulation of the cytotoxic function or by triggering apoptosis, leading to depletion of NK cells. In contrast, some viruses induce proliferation or changes in the morphology of NK cells. In this review article, we provide a comprehensive overview of the viruses that have been reported to infect NK cells, we discuss their mechanisms of entry, and describe the interference with NK cell effector function and phenotype. Finally, we discuss the contribution of virus-infected NK cells to viral load. The development of specific therapeutics, such as viral entry inhibitors, could benefit from an enhanced understanding of viral infection of NK cells, opening up possibilities for the prevention of NK cell infection.
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28
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Barros MHM, Vera-Lozada G, Segges P, Hassan R, Niedobitek G. Revisiting the Tissue Microenvironment of Infectious Mononucleosis: Identification of EBV Infection in T Cells and Deep Characterization of Immune Profiles. Front Immunol 2019; 10:146. [PMID: 30842768 PMCID: PMC6391352 DOI: 10.3389/fimmu.2019.00146] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 01/17/2019] [Indexed: 12/27/2022] Open
Abstract
To aid understanding of primary EBV infection, we have performed an in depth analysis of EBV-infected cells and of local immune cells in tonsils from infectious mononucleosis (IM) patients. We show that EBV is present in approximately 50% of B-cells showing heterogeneous patterns of latent viral gene expression probably reflecting different stages of infection. While the vast majority of EBV+ cells are B-cells, around 9% express T-cell antigens, with a predominance of CD8+ over CD4+ cells. PD-L1 was expressed by a median of 14% of EBV+ cells. The numbers of EBER+PD-L1+ cells were directly correlated with the numbers of EBER+CD3+ and EBER+CD8+ cells suggesting a possible role for PD-L1 in EBV infection of T-cells. The microenvironment of IM tonsils was characterized by a predominance of M1-polarized macrophages over M2-polarized cells. However, at the T-cell level, a heterogeneous picture emerged with numerous Th1/cytotoxic cells accompanied and sometimes outnumbered by Th2/regulatory T-cells. Further, we observed a direct correlation between the numbers of Th2-like cells and EBV- B-cells. Also, a prevalence of cytotoxic T-cells over Th2-like cells was associated with an increased viral load. These observations point to contribution of B- and Th2-like cells to the control of primary EBV infection. 35% of CD8+ cells were differentiated CD8+TBET+ cells, frequently detected in post-capillary venules. An inverse correlation was observed between the numbers of CD8+TBET+ cells and viral load suggesting a pivotal role for these cells in the control of primary EBV infection. Our results provide the basis for a better understanding of immune reactions in EBV-associated tumors.
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Affiliation(s)
| | - Gabriela Vera-Lozada
- Bone Marrow Transplantation Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Priscilla Segges
- Bone Marrow Transplantation Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Rocio Hassan
- Bone Marrow Transplantation Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Gerald Niedobitek
- Institute for Pathology, Unfallkrankenhaus Berlin, Berlin, Germany
- Institute for Pathology, Sana Klinikum Lichtenberg, Berlin, Germany
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29
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Arai A. Chronic active Epstein-Barr virus infection: a bi-faceted disease with inflammatory and neoplastic elements. Immunol Med 2019; 41:162-169. [PMID: 30704352 DOI: 10.1080/25785826.2018.1556030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
Chronic active Epstein-Barr virus infection (CAEBV) is one of the Epstein-Barr virus (EBV)-positive T- or NK-cell lymphoproliferative diseases. It is characterized by clonal proliferation of EBV-infected T or NK cells and their infiltration into systemic organs, leading to their failure. Inflammatory symptoms, fever, lymphadenopathy and liver dysfunction are main clinical findings of CAEBV. EBV itself contributes to the survival of the host cells via induction of CD40 and CD137 expression and constitutive activation of NF-κB. Accumulation of gene mutations in the infected cells may lead to the development of highly malignant lymphoma or leukemia. Furthermore, constitutive activation of STAT3 is detected in the infected cells, which not only promotes cell survival but also enhances production of inflammatory cytokines. Currently, allogeneic hematopoietic stem cell transplantation (allo-HSCT) is the only effective treatment strategy for eradication of EBV-infected T or NK cells. However, active disease at the time of allo-HSCT (defined as presence of fever, liver dysfunction, progressive skin lesions, vasculitis or uveitis) is a negative prognostic factor. Establishment of chemotherapy regimens for effective resolution of disease activity in patients with CAEBV is a key imperative. Based on the recently unraveled molecular mechanisms CAEBV development, pathways mediated by NF-κB or JAK/STAT are potential novel therapeutic targets.
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Affiliation(s)
- Ayako Arai
- a Laboratory Molecular Genetics of Hematology Graduate School of Medical and Dental Sciences , Tokyo Medical and Dental University (TMDU) , Tokyo , Japan
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30
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Kim WY, Montes-Mojarro IA, Fend F, Quintanilla-Martinez L. Epstein-Barr Virus-Associated T and NK-Cell Lymphoproliferative Diseases. Front Pediatr 2019; 7:71. [PMID: 30931288 PMCID: PMC6428722 DOI: 10.3389/fped.2019.00071] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 02/21/2019] [Indexed: 12/14/2022] Open
Abstract
EBV-associated T and NK-cell lymphoproliferative diseases (EBV-T/NK LPDs) are characterized by the transformation and proliferation of EBV-infected T or NK cells. The 2016 revised World Health Organization classification recognizes the following EBV-positive lymphoproliferative disorders (LPD): chronic active EBV infection (CAEBV) of T- and NK-cell type (cutaneous and systemic forms), systemic EBV-positive T-cell lymphoma of childhood, aggressive NK-cell leukemia, extranodal NK/T-cell lymphoma, nasal type, and the new provisional entity primary EBV-positive nodal T/NK-cell lymphoma. EBV-associated hemophagocytic lymphohistiocytosis (HLH), although not included in the WHO classification because it is a reactive, inflammatory disease, is included in this review because it can be life-threatening and may have overlapping features with other EBV+ T/NK LPDs. EBV+ T/NK LPDs are rare diseases difficult to diagnose and manage properly, because some LPDs have unusual presentations, and discrepancies between clinical and histological findings might be encountered. Furthermore, EBV+ T/NK disorders share some clinico-pathological features, and may evolve into other categories during the clinical course, including malignant transformation of CAEBV. Here, we review the EBV+ T/NK LPDs in terms of their definitions, clinical features, histology, immunophenotype, molecular findings, and pathogenesis. This review aims to increase our understanding and awareness of the differential diagnosis among the different EBV+ T/NK LPDs. New insights into the genetic characteristics of these disorders will also be discussed.
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Affiliation(s)
- Wook Youn Kim
- Institute of Pathology and Neuropathology and Comprehensive Cancer Center Tübingen, University Hospital Tübingen, Eberhard-Karls-University, Tübingen, Germany.,Department of Pathology, Konkuk University School of Medicine, Seoul, South Korea
| | - Ivonne A Montes-Mojarro
- Institute of Pathology and Neuropathology and Comprehensive Cancer Center Tübingen, University Hospital Tübingen, Eberhard-Karls-University, Tübingen, Germany
| | - Falko Fend
- Institute of Pathology and Neuropathology and Comprehensive Cancer Center Tübingen, University Hospital Tübingen, Eberhard-Karls-University, Tübingen, Germany
| | - Leticia Quintanilla-Martinez
- Institute of Pathology and Neuropathology and Comprehensive Cancer Center Tübingen, University Hospital Tübingen, Eberhard-Karls-University, Tübingen, Germany
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Arai A. Advances in the Study of Chronic Active Epstein-Barr Virus Infection: Clinical Features Under the 2016 WHO Classification and Mechanisms of Development. Front Pediatr 2019; 7:14. [PMID: 30805320 PMCID: PMC6370717 DOI: 10.3389/fped.2019.00014] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Accepted: 01/15/2019] [Indexed: 12/18/2022] Open
Abstract
Chronic active Epstein-Barr virus infection (CAEBV) is one of the Epstein-Barr virus (EBV)-positive T- or NK-lymphoproliferative diseases. It is considered rare and geographically limited to Japan and East Asia. However, CAEBV is drawing international attention, and the number of case reported worldwide is increasing, after its classification in the EBV-positive T- or NK-cell neoplasms, in the 2016 WHO classification. In this article, I review current advances in the study of CAEBV under the new definition and show future directions. In CAEBV, EBV-infected T or NK cells clonally proliferate and infiltrate multiple organs, leading to their failure. These characteristics define CAEBV as a lymphoid neoplasm. However, the main symptom of CAEBV is inflammation. Recently, the mechanisms underlying the development of CAEBV have gradually become clearer. EBV infection of T or NK cells can occur during the acute phase of primary infection with a high EBV load in the peripheral blood. In addition, it was reported that cytotoxic T cells decreased in numbers or showed dysfunction in CAEBV. These findings suggest that undetermined immunosuppressive disorders may underlie persistent infection of T or NK cells. Furthermore, EBV itself contributes to the survival of host cells. In vitro EBV infection of T cells induced intercellular survival-promoting pathways. Constitutive activation of NF-kB and STAT3 was observed in EBV-positive T or NK cells in CAEBV, promoting not only cell survival but also CAEBV development. During the disease course, CAEBV can lead to two lethal conditions: hemophagocytic lymphohistiocytosis and chemotherapy-resistant lymphoma. It is necessary to start treatment before these conditions develop. At present, the only effective treatment strategy for eradicating EBV-infected T or NK cells is allogeneic stem cell transplantation (allo-HSCT). However, patients with an active disease, in which the condition is accompanied by fever, liver dysfunction, progressive skin lesions, vasculitis, or uveitis, had worse outcomes after allo-HSCT, than patients with an inactive disease had. Unfortunately, current chemotherapies are insufficient to improve the activity of CAEBV. Based on the molecular mechanisms for the development of the disease, the NF-kB, or JAK/STAT mediating pathways are attractive candidate targets for new treatments.
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Affiliation(s)
- Ayako Arai
- Department of Laboratory Molecular Genetics of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
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Measuring the ability of HIV-specific antibodies to mediate trogocytosis. J Immunol Methods 2018; 463:71-83. [PMID: 30240705 DOI: 10.1016/j.jim.2018.09.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 09/14/2018] [Accepted: 09/14/2018] [Indexed: 12/20/2022]
Abstract
Antibody Fc effector functions contribute to HIV control and have been implicated in the partial efficacy seen in the RV144 vaccine trial. Fc-mediated trogocytosis has been previously described for anti-cancer antibodies and results in the removal of membrane fragments from target cells. Here we developed a flow cytometry-based assay which measures the transfer of membrane fragments from a gp120-coated CD4+ lymphocytic cell line (CEM.NKR-CCR5 cells stained with a membrane dye PKH26) to monocytic cells (THP-1 cells stained with CFSE). We showed that this transfer occurred rapidly, within 1 h, and was mediated through engagement of the FcγRIIa/b receptors on the THP-1 cells. HIV-specific IgG as well as gp120 and CD4 could be detected on the surface of THP-1 cells in a process that we demonstrated was distinct from phagocytosis. Furthermore, while the THP-1 effector cells remained intact following the receipt of new membrane proteins, the viability of the target CEM.NKR-CCR5 cells decreased over time. Analysis of HIV-specific plasma revealed that antibodies with trogocytic activity were common in acute and chronic HIV infection but were higher in individuals with broadly neutralizing antibody responses We also examined trogocytosis mediated by broadly neutralizing antibodies (bNAbs) targeting multiple epitopes on the BG505.SOSIP.664 trimer and show that levels of binding correlated with the trogocytosis score. Overall, our data describe a new antiviral Fc effector function mediated by HIV-specific antibodies that could be harnessed for vaccination and cure strategies.
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33
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Ko YH. Epstein-Barr virus-positive T/NK-cell lymphoproliferative diseases in children and adolescents. PRECISION AND FUTURE MEDICINE 2018. [DOI: 10.23838/pfm.2017.00198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
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34
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Pizzi M, Margolskee E, Inghirami G. Pathogenesis of Peripheral T Cell Lymphoma. ANNUAL REVIEW OF PATHOLOGY-MECHANISMS OF DISEASE 2018; 13:293-320. [DOI: 10.1146/annurev-pathol-020117-043821] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Marco Pizzi
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY 10021, USA
- Surgical Pathology and Cytopathology Unit, Department of Medicine-DIMED, University of Padova, 35121 Padova, Italy
| | - Elizabeth Margolskee
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY 10021, USA
| | - Giorgio Inghirami
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, Cornell University, New York, NY 10021, USA
- Department of Molecular Biotechnology and Health Science and Center for Experimental Research and Medical Studies (CeRMS), University of Torino, 10126 Torino, Italy
- Department of Pathology and NYU Cancer Center, NYU School of Medicine, New York, NY 10016, USA
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Lee JH, Choi J, Ahn YO, Kim TM, Heo DS. CD21-independent Epstein-Barr virus entry into NK cells. Cell Immunol 2018; 327:21-25. [PMID: 29499908 DOI: 10.1016/j.cellimm.2018.01.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 01/08/2018] [Accepted: 01/14/2018] [Indexed: 11/16/2022]
Abstract
Extranodal natural killer (NK)/T-cell lymphoma is an aggressive malignant disease that is associated with Epstein-Barr viral (EBV) infection. To date, the mechanism of viral entry into NK cells remains uncertain. Here, we investigated this mechanism using human NK cells in vitro. CD21 mRNA expression, an EBV-entry receptor, was transiently detected in NK cells after exosome treatment, and levels decreased after further culture. CD21 protein expression was also transiently transferred to NK cells after co-culture with an EBV-positive Burkitt lymphoma cell line (Raji) via trogocytosis. However, EBV did not infect NK cells through CD21-mediated trogocytosis. Unexpectedly, when NK cell leukemia cells, as well as primary NK cells, were treated with viral supernatant, EBV genes, but not RNA, were detected in the NK cells, at latency stage 0. Therefore, these results suggest that EBV-NK cell infection results from the direct transfer of viral episomes, independent of EBV-positive B cells.
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Affiliation(s)
- Jeong Hoo Lee
- Cancer Research Institute, Seoul National University, Daehak-ro 101, Jongro-gu, Seoul 03080, Republic of Korea
| | - Jahyang Choi
- Cancer Research Institute, Seoul National University, Daehak-ro 101, Jongro-gu, Seoul 03080, Republic of Korea
| | - Yong-Oon Ahn
- Cancer Research Institute, Seoul National University, Daehak-ro 101, Jongro-gu, Seoul 03080, Republic of Korea; Biomedical Research Institute, Seoul National University Hospital, Daehak-ro 101, Jongro-gu, Seoul 03080, Republic of Korea.
| | - Tae Min Kim
- Cancer Research Institute, Seoul National University, Daehak-ro 101, Jongro-gu, Seoul 03080, Republic of Korea; Department of Internal Medicine, Seoul National University Hospital, Daehak-ro 101, Jongro-gu, Seoul 03080, Republic of Korea
| | - Dae Seog Heo
- Cancer Research Institute, Seoul National University, Daehak-ro 101, Jongro-gu, Seoul 03080, Republic of Korea; Department of Internal Medicine, Seoul National University Hospital, Daehak-ro 101, Jongro-gu, Seoul 03080, Republic of Korea
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36
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Abstract
Epstein-Barr virus (EBV), which is associated with B-cell proliferative disorders, also transforms T- or natural killer (NK)-lineage cells and has been connected with various T- or NK (T/NK)-cell malignancies, such as extranodal NK/T-cell lymphoma-nasal type and aggressive NK-cell leukemia. Chronic active EBV (CAEBV) disease , which occurs most often in children and young adults in East Asia, is an EBV-associated T-/NK-cell lymphoproliferative disease. Patients with CAEBV often progress to overt lymphoma or leukemia over a long-term clinical course. EBV's transforming capacity in B cells is well characterized, but the molecular pathogenesis of clonal expansion caused by EBV in T/NK cells has not yet been clarified. In the primary infection, EBV infects B cells and epithelial cells and may also infect some T/NK cells. In some individuals, because of poor presentation by specific human leukocyte antigens or the genetic background, EBV-infected T/NK cells evade host immunity and survive. Occasionally, with the help of viral oncogenes, EBV-associated T/NK lymphoproliferative diseases, such as CAEBV, may develop. The subsequent accumulation of genetic mutations and/or epigenetic modifications in driver genes, such as DDX3X and TP53, may lead to overt lymphoma and leukemia. Activation-induced cytidine deaminase and the APOBEC3 family, driven by EBV infection, may induce chromosomal recombination and somatic mutations.
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Affiliation(s)
- Hiroshi Kimura
- Department of Virology, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.
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37
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Kimura H, Fujiwara S. Overview of EBV-Associated T/NK-Cell Lymphoproliferative Diseases. Front Pediatr 2018; 6:417. [PMID: 30662890 PMCID: PMC6328478 DOI: 10.3389/fped.2018.00417] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 12/14/2018] [Indexed: 01/29/2023] Open
Abstract
Epstein-Barr virus-associated T/natural killer-cell lymphoproliferative diseases (EBV-T/NK-LPDs) are a group of rare diseases resulting from ectopic infection of T or natural killer (NK) lymphocytes with Epstein-Barr virus (EBV). EBV-T/NK-LPDs include chronic active EBV infection, EBV-associated hemophagocytic lymphohistiocytosis, hydroa vacciniforme-like lymphoproliferative disease, and severe mosquito bite allergy. Extra-nodal NK/T-cell lymphoma-nasal type and aggressive NK-cell leukemia can also be included in this broad spectrum. Currently, the etiology of EBV-T/NK-LPDs is unknown and no curative therapy has been established, except for hematopoietic stem cell transplantation. While most cases of EBV-T/NK-LPDs have been documented in specific areas of the world, they have also been documented more broadly across East Asia and Latin America. Consequently, active research and discussion of EBV-T/NK-LPDs are both necessary and important within the extensive international community of scientists and clinicians, to elucidate their etiology and develop a standard therapy.
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Affiliation(s)
- Hiroshi Kimura
- Department of Virology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shigeyoshi Fujiwara
- Department of Allergy and Clinical Immunology, National Research Institute for Child Health and Development, Tokyo, Japan.,Division of Hematology and Rheumatology, Department of Medicine, Nihon University School of Medicine, Tokyo, Japan
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38
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Mui UN, Haley CT, Tyring SK. Viral Oncology: Molecular Biology and Pathogenesis. J Clin Med 2017; 6:E111. [PMID: 29186062 PMCID: PMC5742800 DOI: 10.3390/jcm6120111] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 11/17/2017] [Accepted: 11/22/2017] [Indexed: 02/06/2023] Open
Abstract
Oncoviruses are implicated in approximately 12% of all human cancers. A large number of the world's population harbors at least one of these oncoviruses, but only a small proportion of these individuals go on to develop cancer. The interplay between host and viral factors is a complex process that works together to create a microenvironment conducive to oncogenesis. In this review, the molecular biology and oncogenic pathways of established human oncoviruses will be discussed. Currently, there are seven recognized human oncoviruses, which include Epstein-Barr Virus (EBV), Human Papillomavirus (HPV), Hepatitis B and C viruses (HBV and HCV), Human T-cell lymphotropic virus-1 (HTLV-1), Human Herpesvirus-8 (HHV-8), and Merkel Cell Polyomavirus (MCPyV). Available and emerging therapies for these oncoviruses will be mentioned.
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Affiliation(s)
- Uyen Ngoc Mui
- Center for Clinical Studies, Houston, TX 77004, USA.
| | | | - Stephen K Tyring
- Center for Clinical Studies, Houston, TX 77004, USA.
- Department of Dermatology, University of Texas Health Science Center at Houston, Houston, TX 77004, USA.
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39
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Wang K, Yang H, He W, Xia Y, Xia Z, Li S, Huang H, Li Z, Liu P, Jiang W. Association between extranodal natural killer/T-cell lymphoma and hepatitis B viral infection: a case-control study. J Cancer 2017; 8:2676-2683. [PMID: 28928855 PMCID: PMC5604198 DOI: 10.7150/jca.19665] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 05/19/2017] [Indexed: 01/02/2023] Open
Abstract
Extranodal natural killer/T-cell lymphoma, nasal type (ENKTL) is a rare subtype of lymphoma that is often associated with poor clinical prognosis. Several studies have shown that hepatitis B virus (HBV) infection may be associated with increased risk of B-cell non-Hodgkin lymphoma; however, because of the rarity of ENKTL, little is known about its association with HBV. Our study aimed to assess whether HBV infection was associated with increased odds of ENKTL. We conducted a hospital-based case-control study including 417 ENKTL cases and 488 age- and sex-matched subjects with nonmalignant diseases unrelated to HBV infection. Multivariable unconditional logistic regression analyses were performed to estimate adjusted odds ratios [AOR] and their corresponding 95% confidence intervals (CI). The results of the multivariable analysis showed that after adjustment for a set of known risk factors, patients previously infected with HBV (HBsAg-seronegative/anti-HBc-seropositive) and naturally immune to HBV (anti-HBs-seropositive/anti-HBc-seropositive) were at significantly greater odds of being diagnosed with ENKTL (AOR, 1.497; 95% CI 1.098-2.042, P=0.033 and AOR, 1.871; 95% CI 1.302-2.689, P=0.001, respectively). After adjusting for other factors, significantly greater odds of being diagnosed with ENKTL were observed among cases who reported ever drinking alcohol (AOR, 1.675; 95% CI 1.054-2.660, P=0.029). The odds of ENKTL diagnosis were not significantly associated with ABO blood type, cigarette smoking status or family history of cancer. The results of our study suggest that patients previously infected with HBV and naturally immune to HBV were at greater odds of being diagnosed with ENKTL.
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Affiliation(s)
- Kefeng Wang
- Department of Medical Oncology. Sun Yat-sen University Cancer Center.,State Key Laboratory of Oncology in South China.,Collaborative Innovation Center for Cancer Medicine. Guangzhou, P.R. China.,Department of Thoracic Surgery, The Sun Yat-sen Memorial Hospital of Sun Yat-sen University. Guangzhou, P.R. China
| | - Hang Yang
- Department of Medical Oncology. Sun Yat-sen University Cancer Center.,State Key Laboratory of Oncology in South China.,Collaborative Innovation Center for Cancer Medicine. Guangzhou, P.R. China
| | - Wenjun He
- Department of Medical Statistic and Epidemiology, School of Public Health, Sun Yat-sen University
| | - Yi Xia
- Department of Medical Oncology. Sun Yat-sen University Cancer Center.,State Key Laboratory of Oncology in South China.,Collaborative Innovation Center for Cancer Medicine. Guangzhou, P.R. China
| | - Zhongjun Xia
- State Key Laboratory of Oncology in South China.,Collaborative Innovation Center for Cancer Medicine. Guangzhou, P.R. China.,Department of Hematological Oncology. Sun Yat-sen University Cancer Center
| | - Su Li
- State Key Laboratory of Oncology in South China.,Collaborative Innovation Center for Cancer Medicine. Guangzhou, P.R. China.,Clinical Trial Center. Sun Yat-sen University Cancer Center
| | - Huiqiang Huang
- Department of Medical Oncology. Sun Yat-sen University Cancer Center.,State Key Laboratory of Oncology in South China.,Collaborative Innovation Center for Cancer Medicine. Guangzhou, P.R. China
| | - Zhiming Li
- Department of Medical Oncology. Sun Yat-sen University Cancer Center.,State Key Laboratory of Oncology in South China.,Collaborative Innovation Center for Cancer Medicine. Guangzhou, P.R. China
| | - Panpan Liu
- Department of Medical Oncology. Sun Yat-sen University Cancer Center.,State Key Laboratory of Oncology in South China.,Collaborative Innovation Center for Cancer Medicine. Guangzhou, P.R. China
| | - Wenqi Jiang
- Department of Medical Oncology. Sun Yat-sen University Cancer Center.,State Key Laboratory of Oncology in South China.,Collaborative Innovation Center for Cancer Medicine. Guangzhou, P.R. China
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40
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Dunham J, van Driel N, Eggen BJ, Paul C, 't Hart BA, Laman JD, Kap YS. Analysis of the cross-talk of Epstein-Barr virus-infected B cells with T cells in the marmoset. Clin Transl Immunology 2017; 6:e127. [PMID: 28243437 PMCID: PMC5311918 DOI: 10.1038/cti.2017.1] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/04/2017] [Accepted: 01/05/2017] [Indexed: 02/06/2023] Open
Abstract
Despite the well-known association of Epstein–Barr virus (EBV), a lymphocryptovirus (LCV), with multiple sclerosis, a clear pathogenic role for disease progression has not been established. The translationally relevant experimental autoimmune encephalomyelitis (EAE) model in marmoset monkeys revealed that LCV-infected B cells have a central pathogenic role in the activation of T cells that drive EAE progression. We hypothesized that LCV-infected B cells induce T-cell functions relevant for EAE progression. In the current study, we examined the ex vivo cross-talk between lymph node mononuclear cells (MNCs) from EAE marmosets and (semi-) autologous EBV-infected B-lymphoblastoid cell lines (B-LCLs). Results presented here demonstrate that infection with EBV B95-8 has a strong impact on gene expression profile of marmoset B cells, particularly those involved with antigen processing and presentation or co-stimulation to T cells. At the cellular level, we observed that MNC co-culture with B-LCLs induced decrease of CCR7 expression on T cells from EAE responder marmosets, but not in EAE monkeys without clinically evident disease. B-LCL interaction with T cells also resulted in significant loss of CD27 expression and reduced expression of IL-23R and CCR6, which coincided with enhanced IL-17A production. These results highlight the profound impact that EBV-infected B-LCL cells can have on second and third co-stimulatory signals involved in (autoreactive) T-cell activation.
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Affiliation(s)
- Jordon Dunham
- Department of Immunobiology, Biomedical Primate Research Centre, Rijswijk, The Netherlands; Department of Neuroscience, University Groningen, University Medical Center, Groningen, The Netherlands
| | - Nikki van Driel
- Department of Immunobiology, Biomedical Primate Research Centre , Rijswijk, The Netherlands
| | - Bart Jl Eggen
- Department of Neuroscience, University Groningen, University Medical Center , Groningen, The Netherlands
| | - Chaitali Paul
- Department of Neuroscience, University Groningen, University Medical Center , Groningen, The Netherlands
| | - Bert A 't Hart
- Department of Immunobiology, Biomedical Primate Research Centre, Rijswijk, The Netherlands; Department of Neuroscience, University Groningen, University Medical Center, Groningen, The Netherlands
| | - Jon D Laman
- Department of Neuroscience, University Groningen, University Medical Center , Groningen, The Netherlands
| | - Yolanda S Kap
- Department of Immunobiology, Biomedical Primate Research Centre , Rijswijk, The Netherlands
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41
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The Epstein-Barr Virus (EBV) in T Cell and NK Cell Lymphomas: Time for a Reassessment. Curr Hematol Malig Rep 2016; 10:456-67. [PMID: 26449716 DOI: 10.1007/s11899-015-0292-z] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
While Epstein-Barr virus (EBV) was initially discovered and characterized as an oncogenic virus in B cell neoplasms, it also plays a complex and multifaceted role in T/NK cell lymphomas. In B cell lymphomas, EBV-encoded proteins have been shown to directly promote immortalization and proliferation through stimulation of the NF-κB pathway and increased expression of anti-apoptotic genes. In the context of mature T/NK lymphomas (MTNKL), with the possible exception on extranodal NK/T cell lymphoma (ENKTL), the virus likely plays a more diverse and nuanced role. EBV has been shown to shape the tumor microenvironment by promoting Th2-skewed T cell responses and by increasing the expression of the immune checkpoint ligand PD-L1. The type of cell infected, the amount of plasma EBV DNA, and the degree of viral lytic replication have all been proposed to have prognostic value in T/NK cell lymphomas. Latency patterns of EBV infection have been defined using EBV-infected B cell models and have not been definitively established in T/NK cell lymphomas. Identifying the expression profile of EBV lytic proteins could allow for individualized therapy with the use of antiviral medications. More work needs to be done to determine whether EBV-associated MTNKL have distinct biological and clinical features, which can be leveraged for risk stratification, disease monitoring, and therapeutic purposes.
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42
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Fcγ-receptor-mediated trogocytosis impacts mAb-based therapies: historical precedence and recent developments. Blood 2014; 125:762-6. [PMID: 25498911 DOI: 10.1182/blood-2014-10-569244] [Citation(s) in RCA: 111] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
A specialized form of trogocytosis occurs when Fcγ receptors on acceptor cells take up and internalize donor cell-associated immune complexes composed of specific monoclonal antibodies (mAbs) bound to target antigens on donor cells. This trogocytosis reaction, an example of antigenic modulation, has been described in recent clinical correlative studies and in vitro investigations for several mAbs used in cancer immunotherapy, including rituximab and ofatumumab. We discuss the impact of Fcγ-receptor-mediated trogocytosis on the efficacy of cancer immunotherapy and other mAb-based therapies.
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Fujiwara S, Kimura H, Imadome KI, Arai A, Kodama E, Morio T, Shimizu N, Wakiguchi H. Current research on chronic active Epstein-Barr virus infection in Japan. Pediatr Int 2014; 56:159-66. [PMID: 24528553 DOI: 10.1111/ped.12314] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Accepted: 01/23/2014] [Indexed: 12/15/2022]
Abstract
Epstein-Barr virus (EBV) infection is usually asymptomatic and persists lifelong. Although EBV-infected B cells have the potential for unlimited proliferation, they are effectively removed by the virus-specific cytotoxic T cells, and EBV-associated lymphoproliferative disease develops only in immunocompromised hosts. Rarely, however, individuals without apparent immunodeficiency develop chronic EBV infection with persistent infectious mononucleosis-like symptoms. These patients have high EBV-DNA load in the peripheral blood and systemic clonal expansion of EBV-infected T cells or natural killer (NK) cells. Their prognosis is poor with life-threatening complications including hemophagocytic lymphohistiocytosis, organ failure, and malignant lymphomas. The term "chronic active EBV infection" (CAEBV) is now generally used for this disease. The geographical distribution of CAEBV is markedly uneven and most cases have been reported from Japan and other East Asian countries. Here we summarize the current understanding of CAEBV and describe the recent progress of CAEBV research in Japan.
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Affiliation(s)
- Shigeyoshi Fujiwara
- Department of Infectious Diseases, National Research Institute for Child Health and Development, Tokyo, Japan
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44
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Arai A, Yamaguchi T, Komatsu H, Imadome KI, Kurata M, Nagata K, Miura O. Infectious mononucleosis accompanied by clonal proliferation of EBV-infected cells and infection of CD8-positive cells. Int J Hematol 2014; 99:671-5. [PMID: 24643771 DOI: 10.1007/s12185-014-1548-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 02/04/2014] [Accepted: 02/12/2014] [Indexed: 12/12/2022]
Abstract
A 22-year-old male was admitted for a sustained fever of 2 months, lymphadenopathy, and liver dysfunction. Anti-VCA-IgM antibody was positive, with elevated Epstein-Barr virus (EBV)-DNA load in the peripheral blood. Liver biopsy revealed infiltration of CD8-positive and EBV-positive cells. Most peripheral blood mononuclear cells (PBMCs) were also positive for CD8, and showed detectable levels of EBV-DNA. Monoclonal proliferation of EBV-infected cells was detected in the PBMCs by Southern blotting for EBV-terminal repeat (EBV-TR). Although EBV-positive T-cell lymphoproliferative disease (EBV-T-LPD) was suspected, the symptoms spontaneously resolved within 12 months. Anti-VCA-IgM antibody and the clonal band of EBV-TR were negative 1 year after the onset, while anti-EBNA antibody was positive. The final diagnosis was thus confirmed as infectious mononucleosis (IM). Our results indicate that EBV-infected CD8-positive cells and clonal proliferation of EBV-infected cells may be temporally detected in IM. EBV-T-LPDs should be carefully excluded in such cases.
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Affiliation(s)
- Ayako Arai
- Department of Hematology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyoku, Tokyo, 113-8519, Japan,
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Klöhn PC, Castro-Seoane R, Collinge J. Exosome release from infected dendritic cells: a clue for a fast spread of prions in the periphery? J Infect 2013; 67:359-68. [PMID: 23911964 DOI: 10.1016/j.jinf.2013.07.024] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 06/11/2013] [Accepted: 07/23/2013] [Indexed: 11/18/2022]
Abstract
Prion diseases are incurable transmissible neurological disorders. In many natural and experimental prion diseases, infectious prions can be detected in the lymphoreticular system (LRS) long before they reach the brain where they cause a fatal rapidly progressive degeneration. Although major cell types that contribute to prion accumulation have been identified, the mode of prion dissemination in the LRS remains elusive. Recent evidence of a remarkably fast splenic prion accumulation after peripheral infection of mice, resulting in high prion titers in dendritic cells (DCs) and a release of prions from infected DCs via exosomes suggest that intercellular dissemination may contribute to rapid prion colonization in the LRS. A vast body of evidence from retroviral infections shows that DCs and other antigen-presenting cells (APCs) share viral antigens by intercellular transfer to warrant immunity against viruses if APCs remain uninfected. Evolved to adapt the immune response to evading pathogens, these pathways may constitute a portal for unimpeded prion dissemination owing to the tolerance of the immune system against host-encoded prion protein. In this review we summarize current paradigms for antigen-sharing pathways which may be relevant to better understand dissemination of rogue neurotoxic proteins.
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Affiliation(s)
- Peter-Christian Klöhn
- MRC Prion Unit and Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London WC1N 3BG, UK.
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High frequency of Epstein-Barr virus–infected lymphocytes in pilonidal cysts. Hum Pathol 2012; 43:2241-6. [DOI: 10.1016/j.humpath.2012.03.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Revised: 03/14/2012] [Accepted: 03/21/2012] [Indexed: 11/21/2022]
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Król M, Pawłowski KM, Szyszko K, Maciejewski H, Dolka I, Manuali E, Jank M, Motyl T. The gene expression profiles of canine mammary cancer cells grown with carcinoma-associated fibroblasts (CAFs) as a co-culture in vitro. BMC Vet Res 2012; 8:35. [PMID: 22453032 PMCID: PMC3355042 DOI: 10.1186/1746-6148-8-35] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Accepted: 03/27/2012] [Indexed: 12/11/2022] Open
Abstract
Background It is supposed that fibroblasts present in tumour microenvironment increase cancer invasiveness and its ability to metastasize but the mechanisms have not been clearly defined yet. Thus, the current study was designed to assess changes in gene expression in five various cancer cell lines grown as a co-culture with the carcinoma-associated fibroblasts (CAFs) in vitro. Results A carcinoma-associated fibroblast cell line was isolated from a canine mammary cancer. Then, a co-culture of cancer cells with the CAFs was established and maintained for 72 hrs. Having sorted the cells, a global gene expression in cancer cells using DNA microarrays was examined. The analysis revealed an up-regulation of 100 genes and a down-regulation of 106 genes in the cancer cells grown as a co-culture with the CAFs in comparison to control conditions. The PANTHER binomial statistics tool was applied to determine statistically over-manifested pathways (p < 0.05). Bulk of the up-regulated genes are involved in the adhesion, the angiogenesis, the epithelial-mesenchymal transition (EMT) and generally take part in the developmental processes. These results were further confirmed using real-time qPCR. Moreover, a wound-healing assay and growth characteristics on Matrigel matrix showed that CAFs increase cancer cell migration and matrix invasion. Conclusion The results of the current study showed that the co-culturing of cancer cells and the CAFs caused significant changes to the cancer gene expression. The presence of the CAFs in a microenvironment of cancer cells promotes adhesion, angiogenesis and EMT.
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Affiliation(s)
- Magdalena Król
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences-WULS, Nowoursynowska 159, 02-776 Warsaw, Poland.
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Epstein-Barr virus–positive T-cell lymphoma cells having chromosome 22q11.2 deletion: an autopsy report of DiGeorge syndrome. Hum Pathol 2011; 42:2037-41. [DOI: 10.1016/j.humpath.2010.03.014] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2009] [Revised: 03/02/2010] [Accepted: 03/04/2010] [Indexed: 01/06/2023]
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Abstract
The ubiquitous Epstein-Barr virus (EBV), which establishes latency after primary infection, does not cause any symptomatic diseases as long as cellular immunity is intact. In apparently immunocompetent individuals, a chronic infection can develop, and this has been called as chronic active EBV infection (CAEBV). CAEBV is characterized by chronic or recurrent infectious mononucleosis-like symptoms, such as fever, extensive lymphadenopathy, and, hepatosplenomegaly. This disease is rare but severe with high morbidity and mortality. Recently, its pathophysiology is not an infection but a clonal expansion of EBV-infected T or natural killer NK cells. In this review, I discuss our current understanding of the pathogenesis of CAEBV and summarize its clinical features, therapies, and prognosis.
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Affiliation(s)
- Hiroshi Kimura
- Department of Virology, Nagoya University Graduate School of Medicine 65 Turumai-cho, Showa-ku, Nagoya 466-8550, Japan.
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EBV-associated T/NK-cell lymphoproliferative diseases in nonimmunocompromised hosts: prospective analysis of 108 cases. Blood 2011; 119:673-86. [PMID: 22096243 DOI: 10.1182/blood-2011-10-381921] [Citation(s) in RCA: 286] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
EBV-associated T/NK-cell lymphoproliferative disease (T/NK-LPD) is defined as a systemic illness characterized by clonal proliferation of EBV-infected T or NK cells. We prospectively enrolled 108 nonimmunocompromised patients with this disease (50 men and 58 women; median onset age, 8 years; age range, 1-50 years) evidenced by expansion of EBV(+) T/NK cells in the peripheral blood; these were of the T-cell type in 64 cases and of the NK-cell type in 44, and were clinically categorized into 4 groups: 80 cases of chronic active EBV disease, 15 of EBV-associated hemophagocytic lymphohistiocytosis, 9 of severe mosquito bite allergy, and 4 of hydroa vacciniforme. These clinical profiles were closely linked with the EBV(+) cell immunophenotypes. In a median follow-up period of 46 months, 47 patients (44%) died of severe organ complications. During the follow-up, 13 patients developed overt lymphoma or leukemia characterized by extranodal NK/T-cell lymphoma and aggressive NK-cell leukemia. Fifty-nine received hematopoietic stem cell transplantation, 66% of whom survived. Age at onset of disease (≥ 8 years) and liver dysfunction were risk factors for mortality, whereas patients who received transplantation had a better prognosis. These data depict clinical characteristics of systemic EBV(+) T/NK-LPD and provide insight into the diagnostic and therapeutic approaches for distinct disease.
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