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Weniger MA, Küppers R. Molecular biology of Hodgkin lymphoma. Leukemia 2021; 35:968-981. [PMID: 33686198 PMCID: PMC8024192 DOI: 10.1038/s41375-021-01204-6] [Citation(s) in RCA: 115] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 02/01/2021] [Accepted: 02/18/2021] [Indexed: 02/06/2023]
Abstract
Classical Hodgkin lymphoma (cHL) is unique among lymphoid malignancies in several key biological features. (i) The Hodgkin and Reed-Sternberg (HRS) tumor cells are rare among an extensive and complex microenvironment. (ii) They derive from B cells, but have largely lost the B-cell typical gene expression program. (iii) Their specific origin appears to be pre-apoptotic germinal center (GC) B cells. (iv) They consistently develop bi- or multinucleated Reed-Sternberg cells from mononuclear Hodgkin cells. (v) They show constitutive activation of numerous signaling pathways. Recent studies have begun to uncover the basis of these specific features of cHL: HRS cells actively orchestrate their complex microenvironment and attract many distinct subsets of immune cells into the affected tissues, to support their survival and proliferation, and to create an immunosuppressive environment. Reed-Sternberg cells are generated by incomplete cytokinesis and refusion of Hodgkin cells. Epstein-Barr virus (EBV) plays a major role in the rescue of crippled GC B cells from apoptosis and hence is a main player in early steps of lymphomagenesis of EBV+ cHL cases. The analysis of the landscape of genetic lesions in HRS cells so far did not reveal any highly recurrent HRS cell-specific lesions, but major roles of genetic lesions in members of the NF-κB and JAK/STAT pathways and of factors of immune evasion. It is perhaps the combination of the genetic lesions and the peculiar cellular origin of HRS cells that are disease defining. A combination of such genetic lesions and multiple cellular interactions with cells in the microenvironment causes the constitutive activation of many signaling pathways, often interacting in complex fashions. In nodular lymphocyte predominant Hodgkin lymphoma, the GC B cell-derived tumor cells have largely retained their typical GC B-cell expression program and follicular microenvironment. For IgD-positive cases, bacterial antigen triggering has recently been implicated in early stages of its pathogenesis.
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Affiliation(s)
- Marc A Weniger
- Medical Faculty, Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, Essen, Germany
| | - Ralf Küppers
- Medical Faculty, Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, Essen, Germany.
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2
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Nagel S, Pommerenke C, Meyer C, MacLeod RAF, Drexler HG. Establishment of the TALE-code reveals aberrantly activated homeobox gene PBX1 in Hodgkin lymphoma. PLoS One 2021; 16:e0246603. [PMID: 33539429 PMCID: PMC7861379 DOI: 10.1371/journal.pone.0246603] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 01/21/2021] [Indexed: 12/26/2022] Open
Abstract
Homeobox genes encode transcription factors which regulate basic processes in development and cell differentiation and are grouped into classes and subclasses according to sequence similarities. Here, we analyzed the activities of the 20 members strong TALE homeobox gene class in early hematopoiesis and in lymphopoiesis including developing and mature B-cells, T-cells, natural killer (NK)-cells and innate lymphoid cells (ILC). The resultant expression pattern comprised eleven genes and which we termed TALE-code enables discrimination of normal and aberrant activities of TALE homeobox genes in lymphoid malignancies. Subsequent expression analysis of TALE homeobox genes in public datasets of Hodgkin lymphoma (HL) patients revealed overexpression of IRX3, IRX4, MEIS1, MEIS3, PBX1, PBX4 and TGIF1. As paradigm we focused on PBX1 which was deregulated in about 17% HL patients. Normal PBX1 expression was restricted to hematopoietic stem cells and progenitors of T-cells and ILCs but absent in B-cells, reflecting its roles in stemness and early differentiation. HL cell line SUP-HD1 expressed enhanced PBX1 levels and served as an in vitro model to identify upstream regulators and downstream targets in this malignancy. Genomic studies of this cell line therein showed a gain of the PBX1 locus at 1q23 which may underlie its aberrant expression. Comparative expression profiling analyses of HL patients and cell lines followed by knockdown experiments revealed NFIB and TLX2 as target genes activated by PBX1. HOX proteins operate as cofactors of PBX1. Accordingly, our data showed that HOXB9 overexpressed in HL coactivated TLX2 but not NFIB while activating TNFRSF9 without PBX1. Further downstream analyses showed that TLX2 activated TBX15 which operated anti-apoptotically. Taken together, we discovered a lymphoid TALE-code and identified an aberrant network around deregulated TALE homeobox gene PBX1 which may disturb B-cell differentiation in HL by reactivation of progenitor-specific genes. These findings may provide the framework for future studies to exploit possible vulnerabilities of malignant cells in therapeutic scenarios.
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Affiliation(s)
- Stefan Nagel
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Claudia Pommerenke
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Corinna Meyer
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Roderick A. F. MacLeod
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
| | - Hans G. Drexler
- Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ – German Collection of Microorganisms and Cell Cultures, Braunschweig, Germany
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3
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Adderley JD, John von Freyend S, Jackson SA, Bird MJ, Burns AL, Anar B, Metcalf T, Semblat JP, Billker O, Wilson DW, Doerig C. Analysis of erythrocyte signalling pathways during Plasmodium falciparum infection identifies targets for host-directed antimalarial intervention. Nat Commun 2020; 11:4015. [PMID: 32782246 PMCID: PMC7419518 DOI: 10.1038/s41467-020-17829-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 07/16/2020] [Indexed: 02/08/2023] Open
Abstract
Intracellular pathogens mobilize host signaling pathways of their host cell to promote their own survival. Evidence is emerging that signal transduction elements are activated in a-nucleated erythrocytes in response to infection with malaria parasites, but the extent of this phenomenon remains unknown. Here, we fill this knowledge gap through a comprehensive and dynamic assessment of host erythrocyte signaling during infection with Plasmodium falciparum. We used arrays of 878 antibodies directed against human signaling proteins to interrogate the activation status of host erythrocyte phospho-signaling pathways at three blood stages of parasite asexual development. This analysis reveals a dynamic modulation of many host signalling proteins across parasite development. Here we focus on the hepatocyte growth factor receptor (c-MET) and the MAP kinase pathway component B-Raf, providing a proof of concept that human signaling kinases identified as activated by malaria infection represent attractive targets for antimalarial intervention. Plasmodium infection activates signaling pathways in a-nucleated erythrocytes. Here, Adderley et al. use a comprehensive antibody microarray to show that infection extensively modulates host cell signalling and that the host receptor tyrosine kinase c-MET supports Plasmodium falciparum proliferation.
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Affiliation(s)
- Jack D Adderley
- Centre for Chronic Inflammatory and Infectious and Diseases, Biomedical Sciences Cluster, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, 3083, Australia
| | - Simona John von Freyend
- Infection and Immunity Program, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Sarah A Jackson
- Infection and Immunity Program, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Megan J Bird
- Infection and Immunity Program, Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Amy L Burns
- Research Centre for Infectious Diseases, School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Burcu Anar
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, CB10 1SA, UK
| | - Tom Metcalf
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, CB10 1SA, UK
| | - Jean-Philippe Semblat
- Institut National de la Transfusion Sanguine, Inserm UMR S1134, 75015, Paris, France
| | - Oliver Billker
- Wellcome Trust Sanger Institute, Hinxton, Cambridgeshire, CB10 1SA, UK.,Molecular Infection Medicine Sweden (MIMS), Department of Molecular Biology, Umeå University, Umeå, SE-901 87, Sweden
| | - Danny W Wilson
- Research Centre for Infectious Diseases, School of Biological Sciences, University of Adelaide, Adelaide, SA, 5005, Australia.,Burnet Institute, Melbourne, VIC, 3004, Australia
| | - Christian Doerig
- Centre for Chronic Inflammatory and Infectious and Diseases, Biomedical Sciences Cluster, School of Health and Biomedical Sciences, RMIT University, Bundoora, VIC, 3083, Australia.
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4
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Giannoni P, Fais F, Cutrona G, Totero DD. Hepatocyte Growth Factor: A Microenvironmental Resource for Leukemic Cell Growth. Int J Mol Sci 2019; 20:ijms20020292. [PMID: 30642077 PMCID: PMC6359660 DOI: 10.3390/ijms20020292] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Revised: 01/07/2019] [Accepted: 01/09/2019] [Indexed: 02/08/2023] Open
Abstract
Chronic lymphocytic leukemia (CLL) is characterized by the progressive expansion of B lymphocytes CD5+/CD23+ in peripheral blood, lymph-nodes, and bone marrow. The pivotal role played by the microenvironment in disease pathogenesis has become increasingly clear. We demonstrated that bone marrow stromal cells and trabecular bone cells sustain survival of leukemic B cells through the production of hepatocyte growth factor (HGF). Indeed the trans-membrane kinase receptor for HGF, c-MET, is expressed on CLL cells and STAT3 TYR705 or AKT phosphorylation is induced after HGF/c-MET interaction. We have further observed that c-MET is also highly expressed in a peculiar type of cells of the CLL-microenvironment showing nurturing features for the leukemic clone (nurse-like cells: NLCs). Since HGF treatment drives monocytes toward the M2 phenotype and NLCs exhibit features of tumor associated macrophages of type 2 we suggested that HGF, released either by cells of the microenvironment or leukemic cells, exerts a double effect: (i) enhances CLL cells survival and (ii) drives differentiation of monocytes-macrophages to an oriented immune suppressive phenotype. We here discuss how paracrine, but also autocrine production of HGF by malignant cells, may favor leukemic clone expansion and resistance to conventional drug treatments in CLL, as well as in other hematological malignancies. Novel therapeutic approaches aimed to block HGF/c-MET interactions are further proposed.
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Affiliation(s)
- Paolo Giannoni
- Stem Cell Laboratory, Department of Experimental Medicine, University of Genoa, V. Pastore 3, 16132 Genova, Italy.
| | - Franco Fais
- Molecular Pathology Unit, IRCCS Polyclinic Hospital San Martino, L.go R. Benzi n.10, 16132 Genova, Italy.
| | - Giovanna Cutrona
- Molecular Pathology Unit, IRCCS Polyclinic Hospital San Martino, L.go R. Benzi n.10, 16132 Genova, Italy.
| | - Daniela de Totero
- Molecular Pathology Unit, IRCCS Polyclinic Hospital San Martino, L.go R. Benzi n.10, 16132 Genova, Italy.
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5
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Huang W, Wei X, Wei Y, Feng R. Biology of Tumor Associated Macrophages in Diffuse Large B Cell Lymphoma. DNA Cell Biol 2018; 37:947-952. [PMID: 30403536 DOI: 10.1089/dna.2018.4374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The tumor associated microenvironment is known to play a vital role during the development and progression of different malignant tumors. As a part of tumor microenvironment, tumor associated macrophages (TAMs) are crucial for the genesis, proliferation, metastasis, and survival of tumor cells. Recently, more and more studies showed that TAMs were related with poor clinical status and survival in patients with diffuse large B cell lymphoma (DLBCL). Considering the complex roles which TAMs play in the tumor microenvironment of DLBCL, the aim of this study was to review the biological mechanisms between TAMs and DLBCL cells, including extracellular matrix remodeling and angiogenesis promotion, tumor promotion, immune suppression, and phagocytosis inhibition. This review will help us to further understand the comprehensive impact of TAMs on DLBCL and explore possible prognostic markers and therapeutic targets.
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Affiliation(s)
- Weimin Huang
- Department of Hematology, Nanfang Hospital, Southern Medical University , Guangzhou, China
| | - Xiaolei Wei
- Department of Hematology, Nanfang Hospital, Southern Medical University , Guangzhou, China
| | - Yongqiang Wei
- Department of Hematology, Nanfang Hospital, Southern Medical University , Guangzhou, China
| | - Ru Feng
- Department of Hematology, Nanfang Hospital, Southern Medical University , Guangzhou, China
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6
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Rashed WM. C-MET as a potential target therapy toward personalized therapy in some pediatric tumors: An overview. Crit Rev Oncol Hematol 2018; 131:7-15. [DOI: 10.1016/j.critrevonc.2018.08.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2018] [Accepted: 08/22/2018] [Indexed: 12/28/2022] Open
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7
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Passam F, Alexandrakis M, Moschandrea J, Sfiridaki A, Roussou P, Siafakas N. Angiogenic Molecules in Hodgkin's Disease: Results from Sequential Serum Analysis. Int J Immunopathol Pharmacol 2018. [DOI: 10.1177/205873920601900116] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Increased angiogenic activity has been demonstrated in lymphoproliferative diseases including Hodgkin's disease. In the current study, the levels of circulating angiogenic molecules in 60 Hodgkin's patients were determined prior to and after treatment and correlated to disease stage and prognostic score. Hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were increased in Hodgkin's patients in comparison to healthy controls (p<0.001). Angiogenin and angiopoietin-2 levels did not differ from controls. HGF, VEGF, TNF-α and angiogenin decreased significantly in Hodgkin's patients after standard treatment (p<0.001 for HGF, p<0.05 for VEGF, TNF-α and angiogenin). Furthermore, HGF and TNF-α increased with advancing stage of disease (p<0.05). HGF and VEGF correlated significantly with IL-6 (r=0.56, p<0.0005 and r=0.57, p<0.001 respectively). In conclusion, Hodgkin's disease displays an angiogenic activity as depicted by the increased serum levels of a number of angiogenic cytokines. HGF seems to be the prominent molecule in Hodgkin's disease, which may be used to monitor the disease status and the response to treatment.
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Affiliation(s)
- F.H. Passam
- III Dept of Internal Medicine, Sotiria Hospital, Medical School of Athens, University of Athens
| | | | - J. Moschandrea
- Dept of Social Medicine, Medical School of Crete, University of Crete
| | - A. Sfiridaki
- Dept of Hematology, Venizelion General Hospital, Heraklion, Crete, Greece
| | - P.A. Roussou
- III Dept of Internal Medicine, Sotiria Hospital, Medical School of Athens, University of Athens
| | - N.M. Siafakas
- Thoracic Medicine, University Hospital of Heraklion, Crete
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8
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The Microenvironment in Epstein-Barr Virus-Associated Malignancies. Pathogens 2018; 7:pathogens7020040. [PMID: 29652813 PMCID: PMC6027429 DOI: 10.3390/pathogens7020040] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/08/2018] [Accepted: 04/11/2018] [Indexed: 12/27/2022] Open
Abstract
The Epstein–Barr virus (EBV) can cause a wide variety of cancers upon infection of different cell types and induces a highly variable composition of the tumor microenvironment (TME). This TME consists of both innate and adaptive immune cells and is not merely an aspecific reaction to the tumor cells. In fact, latent EBV-infected tumor cells utilize several specific mechanisms to form and shape the TME to their own benefit. These mechanisms have been studied largely in the context of EBV+ Hodgkin lymphoma, undifferentiated nasopharyngeal carcinoma, and EBV+ gastric cancer. This review describes the composition, immune escape mechanisms, and tumor cell promoting properties of the TME in these three malignancies. Mechanisms of susceptibility which regularly involve genes related to immune system function are also discussed, as only a small proportion of EBV-infected individuals develops an EBV-associated malignancy.
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9
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Binder M, O'Byrne MM, Maurer MJ, Ansell S, Feldman AL, Cerhan J, Novak A, Porrata LF, Markovic S, Link BK, Witzig TE. Associations between elevated pre-treatment serum cytokines and peripheral blood cellular markers of immunosuppression in patients with lymphoma. Am J Hematol 2017; 92:752-758. [PMID: 28383112 DOI: 10.1002/ajh.24758] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 03/29/2017] [Accepted: 04/03/2017] [Indexed: 12/22/2022]
Abstract
Higher ratios of the pre-treatment peripheral blood absolute lymphocyte (ALC) to absolute monocyte counts (AMC) are associated with improved outcomes in lymphoma. Conversely, elevated pre-treatment serum cytokines are associated with inferior outcomes. The relationship between pre-treatment serum cytokines and ALC/AMC ratios remains unknown. We studied twelve serum cytokines and the ALC/AMC ratios in 390 patients with untreated diffuse large B-cell, follicular, mantle cell, T-cell, and Hodgkin lymphoma. Different pre-treatment serum cytokine concentrations correlated with ALC, AMC, and ALC/AMC ratios depending on the lymphoma type. In the entire cohort (n = 390) lower ALC/AMC ratios modestly correlated with higher IL-2R (r = -0.36), IL-12 (r = -0.17), IP-10 (r = -0.23), and MIG (r = -0.32) concentrations (p < 0.001). Elevated IL-2R was independently associated with suppressed ALC (OR 2.69, 95% CI 1.77-4.07, p < 0.001), elevated AMC (OR 2.05, 95% CI 1.34-3.14, p < 0.001), and suppressed ALC/AMC ratios (OR 3.51, 95% CI 2.31-5.34, p < 0.001). Both elevated IL-2R (HR 2.27, 95% CI 1.48-3.49, p < 0.001) and suppressed ALC/AMC ratios (HR 1.53, 95% CI 1.03-2.28, p = 0.037) were independently associated with inferior overall survival. These data support the notion that elevated serum cytokines are immunosuppressive and provide further rationale to target the tumor microenvironment for therapeutic benefit.
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Affiliation(s)
- Moritz Binder
- Department of Internal Medicine; Mayo Clinic; Rochester Minnesota
| | - Megan M. O'Byrne
- Department of Health Sciences Research; Mayo Clinic; Rochester Minnesota
| | - Matthew J. Maurer
- Department of Health Sciences Research; Mayo Clinic; Rochester Minnesota
| | - Stephen Ansell
- Division of Hematology; Mayo Clinic; Rochester Minnesota
| | - Andrew L. Feldman
- Department of Laboratory Medicine and Pathology; Mayo Clinic; Rochester Minnesota
| | - James Cerhan
- Department of Health Sciences Research; Mayo Clinic; Rochester Minnesota
| | - Anne Novak
- Division of Hematology; Mayo Clinic; Rochester Minnesota
| | | | | | - Brian K. Link
- Department of Internal Medicine; University of Iowa Hospitals and Clinics; Iowa City Iowa
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10
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Lam BQ, Dai L, Qin Z. The role of HGF/c-MET signaling pathway in lymphoma. J Hematol Oncol 2016; 9:135. [PMID: 27923392 PMCID: PMC5141645 DOI: 10.1186/s13045-016-0366-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 12/01/2016] [Indexed: 01/15/2023] Open
Abstract
Inappropriate activation of c-mesenchymal-epithelial transition (MET), the receptor tyrosine kinase (RTK) for hepatocyte growth factor (HGF), has been implicated in tumorigenesis and represented a promising therapeutic target for developing anticancer agents. In contrast to other solid tumors, there are limited data describing the functional role of HGF/c-MET signaling pathway in lymphoma. In the current review, we summarize recent findings about the expression, cellular mechanisms/functions, and therapeutic application of HGF/c-MET in different types of lymphoma, especially B cell lymphoma, T and NK cell lymphoma, and Hodgkin lymphoma. We also discuss the existing problems and future directions about studying the HGF/c-MET pathway in lymphoma cells.
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Affiliation(s)
- Bao Quoc Lam
- Departments of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, Louisiana Cancer Research Center, Suite 902, 1700 Tulane Ave., New Orleans, LA, 70112, USA
| | - Lu Dai
- Departments of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, Louisiana Cancer Research Center, Suite 902, 1700 Tulane Ave., New Orleans, LA, 70112, USA.,Department of Oncology, Research Center for Translational Medicine and Key Laboratory of Arrhythmias, East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Zhiqiang Qin
- Departments of Microbiology, Immunology, and Parasitology, Louisiana State University Health Sciences Center, Louisiana Cancer Research Center, Suite 902, 1700 Tulane Ave., New Orleans, LA, 70112, USA. .,Department of Oncology, Research Center for Translational Medicine and Key Laboratory of Arrhythmias, East Hospital, Tongji University School of Medicine, Shanghai, 200120, China.
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11
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Aldinucci D, Celegato M, Casagrande N. Microenvironmental interactions in classical Hodgkin lymphoma and their role in promoting tumor growth, immune escape and drug resistance. Cancer Lett 2016; 380:243-52. [DOI: 10.1016/j.canlet.2015.10.007] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 10/06/2015] [Accepted: 10/07/2015] [Indexed: 12/22/2022]
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12
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Insights into the molecular roles of heparan sulfate proteoglycans (HSPGs—syndecans) in autocrine and paracrine growth factor signaling in the pathogenesis of Hodgkin’s lymphoma. Tumour Biol 2016; 37:11573-11588. [DOI: 10.1007/s13277-016-5118-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 06/09/2016] [Indexed: 12/25/2022] Open
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13
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Hofmann A, Thiesler T, Gerrits B, Behnke S, Sobotzki N, Omasits U, Bausch-Fluck D, Bock T, Aebersold R, Moch H, Tinguely M, Wollscheid B. Surfaceome of classical Hodgkin and non-Hodgkin lymphoma. Proteomics Clin Appl 2016; 9:661-70. [PMID: 26076441 DOI: 10.1002/prca.201400146] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Revised: 03/09/2015] [Accepted: 06/10/2015] [Indexed: 11/06/2022]
Abstract
PURPOSE Classical Hodgkin lymphoma (cHL) is characterized by a low percentage of tumor cells in a background of diverse, reactive immune cells. cHL cells commonly derive from preapoptotic germinal-center B cells and are characterized by the loss of B-cell markers and the varying expression of other hematopoietic lineage markers. This phenotypic variability and the scarcity of currently available cHL-specific cell surface markers can prevent clear distinction of cHL from related lymphomas. EXPERIMENTAL DESIGN We applied the cell surface capture technology to directly measure the pool of cell surface exposed proteins in four cHL and four non-Hodgkin lymphoma (NHL) cell lines. RESULTS More than 1000 membrane proteins, including 178 cluster of differentiation annotated proteins, were identified and allowed the generation of lymphoma surfaceome maps. The functional properties of identified cell surface proteins enable, but also limit the information exchange of lymphoma cells with their microenvironment. CONCLUSION AND CLINICAL RELEVANCE Selected candidate proteins with potential diagnostic value were evaluated on a tissue microarray (TMA). Primary lymphoma tissues of 126 different B cell-derived lymphoma cases were included in the TMA analysis. The TMA analysis indicated gamma-glutamyltranspeptidase 1 as a potential additional marker that can be included in a panel of markers for differential diagnosis of cHL versus NHL.
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Affiliation(s)
- Andreas Hofmann
- Department of Biology, Institute of Molecular Systems Biology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland.,Ph.D. Program in Molecular Life Sciences, University of Zurich (UZH)/ETH Zurich, Zurich, Switzerland
| | - Thore Thiesler
- Institute of Surgical Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Bertran Gerrits
- Functional Genomics Center Zurich, UZH/ETH Zurich, Zurich, Switzerland
| | - Silvia Behnke
- Institute of Surgical Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Nadine Sobotzki
- Department of Biology, Institute of Molecular Systems Biology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland.,Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Ulrich Omasits
- Department of Biology, Institute of Molecular Systems Biology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland
| | - Damaris Bausch-Fluck
- Department of Biology, Institute of Molecular Systems Biology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland.,Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
| | - Thomas Bock
- Department of Biology, Institute of Molecular Systems Biology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland
| | - Ruedi Aebersold
- Department of Biology, Institute of Molecular Systems Biology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland.,Faculty of Science, UZH, Zurich, Switzerland
| | - Holger Moch
- Institute of Surgical Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Marianne Tinguely
- Institute of Surgical Pathology, University Hospital Zurich, Zurich, Switzerland
| | - Bernd Wollscheid
- Department of Biology, Institute of Molecular Systems Biology, Swiss Federal Institute of Technology (ETH) Zurich, Zurich, Switzerland.,Department of Health Sciences and Technology, ETH Zurich, Zurich, Switzerland
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14
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Dai L, Trillo-Tinoco J, Cao Y, Bonstaff K, Doyle L, Del Valle L, Whitby D, Parsons C, Reiss K, Zabaleta J, Qin Z. Targeting HGF/c-MET induces cell cycle arrest, DNA damage, and apoptosis for primary effusion lymphoma. Blood 2015; 126:2821-31. [PMID: 26531163 PMCID: PMC4692142 DOI: 10.1182/blood-2015-07-658823] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 10/03/2015] [Indexed: 11/20/2022] Open
Abstract
Kaposi sarcoma-associated herpesvirus (KSHV) is a principal causative agent of primary effusion lymphoma (PEL) with a poor prognosis in immunocompromised patients. However, it still lacks effective treatment which urgently requires the identification of novel therapeutic targets for PEL. Here, we report that the hepatocyte growth factor (HGF)/c-MET pathway is highly activated by KSHV in vitro and in vivo. The selective c-MET inhibitor, PF-2341066, can induce PEL apoptosis through cell cycle arrest and DNA damage, and suppress tumor progression in a xenograft murine model. By using microarray analysis, we identify many novel genes that are potentially controlled by HGF/c-MET within PEL cells. One of the downstream candidates, ribonucleoside-diphosphate reductase subunit M2 (RRM2), also displays the promising therapeutic value for PEL treatment. Our findings provide the framework for development of HGF/c-MET-focused therapy and implementation of clinical trials for PEL patients.
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Affiliation(s)
- Lu Dai
- Department of Microbiology, Immunology, & Parasitology, Louisiana State University Health Sciences Center, Louisiana Cancer Research Center, New Orleans, LA; Research Center for Translational Medicine and Key Laboratory of Arrhythmias, East Hospital, Tongji University School of Medicine, Shanghai, China; Department of Medicine and
| | - Jimena Trillo-Tinoco
- Department of Pathology, Louisiana State University Health Sciences Center, Louisiana Cancer Research Center, New Orleans, LA
| | - Yueyu Cao
- Research Center for Translational Medicine and Key Laboratory of Arrhythmias, East Hospital, Tongji University School of Medicine, Shanghai, China
| | | | | | - Luis Del Valle
- Department of Pathology, Louisiana State University Health Sciences Center, Louisiana Cancer Research Center, New Orleans, LA
| | - Denise Whitby
- Viral Oncology Section, AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Frederick, MD; and
| | | | | | - Jovanny Zabaleta
- Department of Pediatrics, Louisiana State University Health Sciences Center, Louisiana Cancer Research Center, New Orleans, LA
| | - Zhiqiang Qin
- Department of Microbiology, Immunology, & Parasitology, Louisiana State University Health Sciences Center, Louisiana Cancer Research Center, New Orleans, LA; Research Center for Translational Medicine and Key Laboratory of Arrhythmias, East Hospital, Tongji University School of Medicine, Shanghai, China
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15
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Akl MR, Nagpal P, Ayoub NM, Prabhu SA, Gliksman M, Tai B, Hatipoglu A, Goy A, Suh KS. Molecular and clinical profiles of syndecan-1 in solid and hematological cancer for prognosis and precision medicine. Oncotarget 2015; 6:28693-715. [PMID: 26293675 PMCID: PMC4745686 DOI: 10.18632/oncotarget.4981] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Accepted: 07/11/2015] [Indexed: 12/18/2022] Open
Abstract
Syndecan-1 (SDC1, CD138) is a key cell surface adhesion molecule essential for maintaining cell morphology and interaction with the surrounding microenvironment. Deregulation of SDC1 contributes to cancer progression by promoting cell proliferation, metastasis, invasion and angiogenesis, and is associated with relapse through chemoresistance. SDC1 expression level is also associated with responses to chemotherapy and with prognosis in multiple solid and hematological cancers, including multiple myeloma and Hodgkin lymphoma. At the tissue level, the expression levels of SDC1 and the released extracellular domain of SDC1 correlate with tumor malignancy, phenotype, and metastatic potential for both solid and hematological tumors in a tissue-specific manner. The SDC1 expression profile varies among cancer types, but the differential expression signatures between normal and cancer cells in epithelial and stromal compartments are directly associated with aggressiveness of tumors and patient's clinical outcome and survival. Therefore, relevant biomarkers of SDC signaling may be useful for selecting patients that would most likely respond to a particular therapy at the time of diagnosis or perhaps for predicting relapse. In addition, the reciprocal expression signature of SDC between tumor epithelial and stromal compartments may have synergistic value for patient selection and the prediction of clinical outcome.
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Affiliation(s)
- Mohamed R. Akl
- Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Poonam Nagpal
- Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Nehad M. Ayoub
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Sathyen A. Prabhu
- Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Matthew Gliksman
- Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Betty Tai
- Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Ahmet Hatipoglu
- Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - Andre Goy
- Lymphoma Division, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
| | - K. Stephen Suh
- Genomics and Biomarkers Program, The John Theurer Cancer Center, Hackensack University Medical Center, Hackensack, NJ, USA
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16
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Wein F, Küppers R. The role of T cells in the microenvironment of Hodgkin lymphoma. J Leukoc Biol 2015; 99:45-50. [PMID: 26320264 DOI: 10.1189/jlb.3mr0315-136r] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Accepted: 05/15/2015] [Indexed: 12/23/2022] Open
Abstract
The cellular microenvironment in HL is dominated by a mixed infiltrate of inflammatory cells with typically only 1 or a few percent of HRS tumor cells. HRS cells orchestrate this infiltrate by the secretion of a multitude of chemokines. T cells are usually the largest population of cells in the HL tissue, encompassing Th cells, T(regs), and CTLs. Th cells and T(regs) presumably provide essential survival signals for the HRS cells, and the T(regs) also play an important role in rescuing HRS cells from an attack by CTLs and NK cells. The interference with this complex interplay of HRS cells with other immune cells in the microenvironment may provide novel strategies for targeted immunotherapies.
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Affiliation(s)
- Frederik Wein
- Institute of Cell Biology (Cancer Research), Medical Faculty, University of Duisburg-Essen, Essen, Germany
| | - Ralf Küppers
- Institute of Cell Biology (Cancer Research), Medical Faculty, University of Duisburg-Essen, Essen, Germany
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17
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Mungunsukh O, McCart EA, Day RM. Hepatocyte Growth Factor Isoforms in Tissue Repair, Cancer, and Fibrotic Remodeling. Biomedicines 2014; 2:301-326. [PMID: 28548073 PMCID: PMC5344272 DOI: 10.3390/biomedicines2040301] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 10/21/2014] [Accepted: 10/27/2014] [Indexed: 01/18/2023] Open
Abstract
Hepatocyte growth factor (HGF), also known as scatter factor (SF), is a pleotropic factor required for normal organ development during embryogenesis. In the adult, basal expression of HGF maintains tissue homeostasis and is up-regulated in response to tissue injury. HGF expression is necessary for the proliferation, migration, and survival of epithelial and endothelial cells involved in tissue repair in a variety of organs, including heart, lung, kidney, liver, brain, and skin. The administration of full length HGF, either as a protein or using exogenous expression methodologies, increases tissue repair in animal models of tissue injury and increases angiogenesis. Full length HGF is comprised of an N-terminal hairpin turn, four kringle domains, and a serine protease-like domain. Several naturally occurring alternatively spliced isoforms of HGF were also identified. The NK1 variant contains the N-terminal hairpin and the first kringle domain, and the NK2 variant extends through the second kringle domain. These alternatively spliced forms of HGF activate the same receptor, MET, but they differ from the full length protein in their cellular activities and their biological functions. Here, we review the species-specific expression of the HGF isoforms, their regulation, the signal transduction pathways they activate, and their biological activities.
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Affiliation(s)
- Ognoon Mungunsukh
- Department of Pharmacology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814-4799, USA.
| | - Elizabeth A McCart
- Department of Pharmacology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814-4799, USA.
| | - Regina M Day
- Department of Pharmacology, Uniformed Services University of the Health Sciences, Bethesda, MD 20814-4799, USA.
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18
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Marinaccio C, Nico B, Maiorano E, Specchia G, Ribatti D. Insights in Hodgkin Lymphoma angiogenesis. Leuk Res 2014; 38:857-61. [DOI: 10.1016/j.leukres.2014.05.023] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 05/20/2014] [Accepted: 05/27/2014] [Indexed: 12/11/2022]
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19
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Rocci A, Gambella M, Aschero S, Baldi I, Trusolino L, Cavallo F, Gay F, Larocca A, Magarotto V, Omedè P, Isaia G, Bertotti A, Liberati AM, Catalano L, De Rosa L, Musto P, Vallone R, Falcone A, Drandi D, Ladetto M, Comoglio PM, Boccadoro M, Palumbo A. MET dysregulation is a hallmark of aggressive disease in multiple myeloma patients. Br J Haematol 2014; 164:841-50. [PMID: 24450886 DOI: 10.1111/bjh.12719] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 10/02/2013] [Indexed: 11/30/2022]
Abstract
Abnormal activation of MET/HGF (Hepatocyte Growth Factor) pathway has been described in several tumours and increased HGF plasmatic levels have been detected in patients with aggressive multiple myeloma (MM). MET and HGF mRNA expression was investigated in 105 samples of purified plasma cells derived from newly diagnosed MM patients treated with bortezomib-based induction therapy. Gene expression was compared with response to therapy and clinical outcome. MET gene copy number was also evaluated. MET mRNA expression was higher in CD138(+) than in CD138(-) cells (median 76·90 vs. 11·24; P = 0·0009). Low MET mRNA expression characterized patients with better response (complete response or very good partial response) compared to other patients (median 56·10 vs. 134·83; P = 0·0006). After a median follow-up of 50 months, patients with high MET mRNA expression displayed a worse progression-free survival (PFS; P = 0·0029) and overall survival (OS; P = 0·0023) compared to those with low MET mRNA levels. Patients with both high MET mRNA expression and high β2-microglobulin level (>5·5 mg/l) had further worse median PFS (P < 0·0001) and OS (P < 0·0001). Patients carrying 4 MET gene copies (8 out of 82, 9·8%) also had a short PFS. High MET mRNA expression identifies patients with dismal PFS and OS and the combination with high β2-microglobulin further characterizes patients with worse outcome.
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Affiliation(s)
- Alberto Rocci
- Myeloma Unit, Division of Haematology, University of Torino, Azienda Ospedaliera Città della Salute e della Scienza di Torino, Torino, Italy
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20
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Roullet MR, Bagg A. Recent insights into the biology of Hodgkin lymphoma: unraveling the mysteries of the Reed–Sternberg cell. Expert Rev Mol Diagn 2014; 7:805-20. [DOI: 10.1586/14737159.7.6.805] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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21
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MET and MST1R as prognostic factors for classical Hodgkin's lymphoma. Mod Pathol 2013; 26:1172-82. [PMID: 23558571 DOI: 10.1038/modpathol.2013.64] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 11/06/2012] [Accepted: 01/10/2013] [Indexed: 01/18/2023]
Abstract
MST1R (RON) and MET are receptor tyrosine kinase gene family members that form a noncovalent complex on the cell surface, a critical step in tumor progression. A recent study suggested a prognostic role of MET expression in Hodgkin/Reed-Sternberg (HRS) cells in classical Hodgkin's lymphoma (cHL). The purpose of this study was to examine the prognostic significance of MET and MST1R expression in cHL. The prognostic impact of MET and MST1R was examined in 100 patients with cHL (median age: 32 years) by immunohistochemistry and mRNA in situ hybridization. The median follow-up time was 95 months (interquartile range: 42-126 months). MET or MST1R protein expression was associated with high MET or MST1R mRNA expression, respectively. Thirty-eight patients (38%) expressed MET protein in HRS cell, which was associated with better overall survival (P=0.004). Twenty-six patients (26%) expressed MST1R protein, which was associated with better overall survival (P=0.022) and event-free survival (P=0.021). Multivariate analysis identified MET protein as an independent prognostic factor for overall survival and MST1R protein as an independent prognostic factor for event-free survival. Subgroup analysis according to Ann Arbor stage showed that expressions of MET and MST1R protein have prognostic impact in the advanced stage only. In particular, coexpression of MST1R and MET protein was associated with a better survival outcome than MET or MST1R expression alone or no expression. This study suggests that MET and MST1R are independent prognostic factors in classical cHL, and may allow the identification of a subgroup of cHL patients who require more intensive therapy.
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Liu Y, Sattarzadeh A, Diepstra A, Visser L, van den Berg A. The microenvironment in classical Hodgkin lymphoma: an actively shaped and essential tumor component. Semin Cancer Biol 2013; 24:15-22. [PMID: 23867303 DOI: 10.1016/j.semcancer.2013.07.002] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Revised: 06/20/2013] [Accepted: 07/06/2013] [Indexed: 12/19/2022]
Abstract
Classical Hodgkin lymphoma (cHL) is characterized by a minority of tumor cells derived from germinal center B-cells and a vast majority of non-malignant reactive cells. The tumor cells show a loss of B-cell phenotype including lack of the B-cell receptor, which makes the tumor cells vulnerable to apoptosis. To overcome this threat, tumor cells and their precursors depend on anti-apoptotic and growth stimulating factors that are obtained via triggering of multiple membrane receptors. In addition, tumor cells shape the environment by producing a wide variety of chemokines and cytokines. These factors alter the composition of the microenvironment and modulate the nature and effectiveness of the infiltrating cells. The attracted cells enhance the pro-survival and growth stimulating signals for the tumor cells. To escape from an effective anti-tumor response tumor cells avoid recognition by T and NK cells, by downregulation of HLA molecules and modulating NK and T-cell receptors. In addition, the tumor cells produce immune suppressive cytokines that inhibit cytotoxic responses. In this review the relevance of the microenvironment in the pathogenesis of cHL will be discussed.
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Affiliation(s)
- Yuxuan Liu
- Department of Pathology & Medical Biology, University of Groningen, University Medical Center Groningen, Netherlands.
| | - Ahmad Sattarzadeh
- Department of Pathology & Medical Biology, University of Groningen, University Medical Center Groningen, Netherlands.
| | - Arjan Diepstra
- Department of Pathology & Medical Biology, University of Groningen, University Medical Center Groningen, Netherlands.
| | - Lydia Visser
- Department of Pathology & Medical Biology, University of Groningen, University Medical Center Groningen, Netherlands.
| | - Anke van den Berg
- Department of Pathology & Medical Biology, University of Groningen, University Medical Center Groningen, Netherlands.
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23
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Bedewy M, El-Maghraby S, Bedewy A. CD163 and c-Met expression in the lymph node and the correlations between elevated levels of serum free light chain and the different clinicopathological parameters of advanced classical Hodgkin's lymphoma. Blood Res 2013; 48:121-7. [PMID: 23826581 PMCID: PMC3698397 DOI: 10.5045/br.2013.48.2.121] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 05/17/2013] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Advances in the understanding of Hodgkin's lymphoma (HL) show various functions of infiltrating immune cells and cytokines in relation to clinical outcomes. The expression of CD163 and c-Met has been suggested to have a role in lymphoid malignancy. Thus, we evaluated the expressions of CD163, c-Met, and serum free light chain (sFLC) in relation to the clinicopathological features of patients with advanced classical HL (cHL). METHODS We assessed the expression of CD163 and c-Met in 34 patients with cHL through immunohistochemistry on the lymph node biopsy sections and the levels of pretreatment sFLC were estimated using ELISA. RESULTS High CD163 expression correlated with increased age, B symptoms, International Prognostic Score (IPS) ≥3, mixed cellularity subtype, and low response to treatment. Further, high c-Met expression correlated with increased age at diagnosis, leukocytosis, B symptoms, and lower chance to achieve complete remission. The sFLC levels correlated with increased age at diagnosis, lymphopenia, IPS ≥3, B symptoms, and lower complete remission rates. CONCLUSION In advanced cHL, increased expression of CD163 and c-Met showed a significant association with adverse prognostic parameters and poor response to treatment. Pretreatment high sFLC level also correlated with poor risk factors, suggesting its use as a candidate prognostic marker. A comprehensive approach for prognostic markers might represent a step towards developing a tailored therapeutic approach for HL.
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Huang WT, Chuang SS. High MET gene copy number predicted poor prognosis in primary intestinal diffuse large B-cell lymphoma. Diagn Pathol 2013; 8:16. [PMID: 23379953 PMCID: PMC3584722 DOI: 10.1186/1746-1596-8-16] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Accepted: 01/31/2013] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND MET is a proto-oncogene with its copy number (CN) alterations been reported in some cancers, but not in primary intestinal diffuse large B-cell lymphoma (PI-DLBL) yet. METHODS In this retrospective study, we performed histology and chart reviews, immunohistochemistry and quantitative polymerase chain reaction for MET CN alterations on 28 surgically resected PI-DLBLs. RESULTS There were 12 men and 16 women with a median age of 70 and a mean follow-up of 32 months. The median MET CN was 2.20 (range, 1.04 to 3.35). CN gain was observed in 11 cases, including 5 with CN greater than 3. Nine patients (32%) had diploid CN and eight (29%) with CN loss. Patients with gain or diploid CN showed significantly worse prognosis (P = 0.046) than those with CN loss. Furthermore, MET CN greater than 3 was associated with an adverse outcome (P = 0.003). Intestinal perforation at presentation was the sole clinicopathological factor associated with a poor prognosis (P = 0.004) and perforation was correlated with CN greater than 3 (P = 0.002). CONCLUSIONS Our finding of MET CN gain as a poor prognostic factor in PI-DLBL patients might serve as the rationale for targeting MET signaling pathway in the treatment of these patients.
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Affiliation(s)
- Wan-Ting Huang
- Department of Pathology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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25
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Bonanno G, Mariotti A, Procoli A, Folgiero V, Natale D, De Rosa L, Majolino I, Novarese L, Rocci A, Gambella M, Ciciarello M, Scambia G, Palumbo A, Locatelli F, De Cristofaro R, Rutella S. Indoleamine 2,3-dioxygenase 1 (IDO1) activity correlates with immune system abnormalities in multiple myeloma. J Transl Med 2012; 10:247. [PMID: 23232072 PMCID: PMC3543251 DOI: 10.1186/1479-5876-10-247] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Accepted: 12/03/2012] [Indexed: 01/19/2023] Open
Abstract
Background Multiple myeloma (MM) is a plasma cell malignancy with a multifaceted immune dysfunction. Indoleamine 2,3-dioxygenase 1 (IDO1) degrades tryptophan into kynurenine (KYN), which inhibits effector T cells and promote regulatory T-cell (Treg) differentiation. It is presently unknown whether MM cells express IDO1 and whether IDO1 activity correlates with immune system impairment. Methods We investigated IDO1 expression in 25 consecutive patients with symptomatic MM and in 7 patients with either monoclonal gammopathy of unknown significance (MGUS; n=3) or smoldering MM (SMM; n=4). IDO1-driven tryptophan breakdown was correlated with the release of hepatocyte growth factor (HGF) and with the frequency of Treg cells and NY-ESO-1-specific CD8+ T cells. Results KYN was increased in 75% of patients with symptomatic MM and correlated with the expansion of CD4+CD25+FoxP3+ Treg cells and the contraction of NY-ESO-1-specific CD8+ T cells. In vitro, primary MM cells promoted the differentiation of allogeneic CD4+ T cells into bona fide CD4+CD25hiFoxP3hi Treg cells and suppressed IFN-γ/IL-2 secretion, while preserving IL-4 and IL-10 production. Both Treg expansion and inhibition of Th1 differentiation by MM cells were reverted, at least in part, by d,l-1-methyl-tryptophan, a chemical inhibitor of IDO. Notably, HGF levels were higher within the BM microenvironment of patients with IDO+ myeloma disease compared with patients having IDO- MM. Mechanistically, the antagonism of MET receptor for HGF with SU11274, a MET inhibitor, prevented HGF-induced AKT phosphorylation in MM cells and translated into reduced IDO protein levels and functional activity. Conclusions These data suggest that IDO1 expression may contribute to immune suppression in patients with MM and possibly other HGF-producing cancers.
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Belalcazar A, Azaña D, Perez CA, Raez LE, Santos ES. Targeting the Met pathway in lung cancer. Expert Rev Anticancer Ther 2012; 12:519-28. [PMID: 22500688 DOI: 10.1586/era.12.16] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Dysregulation of Met signaling has been implicated in the initiation, progression and metastasis of human cancers, and therefore represents an attractive target for anticancer drug development. Met is overexpressed in non-small-cell lung cancer and its lack of staining in normal lung tissue makes it an attractive target. To date, erlotinib and gefitinib have established themselves as first-line therapy for non-small-cell lung cancer patients whose tumors harbor an EGF receptor gene mutation, and hence, it is crucial that we identify mechanisms of resistance that could be targeted by novel agents, while keeping an acceptable toxicity profile at the same time; something very important when we develop these new drugs. Inhibitors of the Met pathway represent a therapeutic alternative in this setting. In this review, we discuss the early clinical studies reported using two Met inhibitors, a monoclonal antibody (MetMAb) and a small molecule tyrosine kinase inhibitor (MGCD265).
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Affiliation(s)
- Astrid Belalcazar
- Department of Internal Medicine, University of Tennessee Health Science Center, Memphis, TN, USA
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de la Cruz-Merino L, Lejeune M, Nogales Fernández E, Henao Carrasco F, Grueso López A, Illescas Vacas A, Pulla MP, Callau C, Álvaro T. Role of immune escape mechanisms in Hodgkin's lymphoma development and progression: a whole new world with therapeutic implications. Clin Dev Immunol 2012; 2012:756353. [PMID: 22927872 PMCID: PMC3426211 DOI: 10.1155/2012/756353] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2012] [Accepted: 06/05/2012] [Indexed: 12/31/2022]
Abstract
Hodgkin's lymphoma represents one of the most frequent lymphoproliferative syndromes, especially in young population. Although HL is considered one of the most curable tumors, a sizeable fraction of patients recur after successful upfront treatment or, less commonly, are primarily resistant. This work tries to summarize the data on clinical, histological, pathological, and biological factors in HL, with special emphasis on the improvement of prognosis and their impact on therapeutical strategies. The recent advances in our understanding of HL biology and immunology show that infiltrated immune cells and cytokines in the tumoral microenvironment may play different functions that seem tightly related with clinical outcomes. Strategies aimed at interfering with the crosstalk between tumoral Reed-Sternberg cells and their cellular partners have been taken into account in the development of new immunotherapies that target different cell components of HL microenvironment. This new knowledge will probably translate into a change in the antineoplastic treatments in HL in the next future and hopefully will increase the curability rates of this disease.
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Affiliation(s)
- Luis de la Cruz-Merino
- Clinical Oncology Department, Hospital Universitario Virgen Macarena, 41009 Sevilla, Spain.
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Cohen S, Shachar I. Cytokines as regulators of proliferation and survival of healthy and malignant peripheral B cells. Cytokine 2012; 60:13-22. [PMID: 22784632 DOI: 10.1016/j.cyto.2012.06.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Revised: 05/21/2012] [Accepted: 06/04/2012] [Indexed: 12/31/2022]
Abstract
Adaptive immunity depends on the production and maintenance of a pool of mature peripheral lymphocytes throughout life. The signals regulating the survival of mature splenic B cells have become a major focus in recent studies of B cell immunology. Lasting B cell persistence in the periphery is dependent on survival signals that are transduced by cell surface receptors. Cytokines have been shown to play a critical role in maintaining lymphocyte homeostasis. This review focuses on the role of cytokines and their receptors in the regulation of peripheral B cell survival, with an emphasis on those that have received relatively less attention in the literature.
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Affiliation(s)
- Sivan Cohen
- Department of Immunology, Weizmann Institute of Science, Rehovot 76100, Israel
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29
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Abstract
The MET pathway is dysregulated in many human cancers and promotes tumour growth, invasion and dissemination. Abnormalities in MET signalling have been reported to correlate with poor clinical outcomes and drug resistance in patients with cancer. Thus, MET has emerged as an attractive target for cancer therapy. Several MET inhibitors have been introduced into the clinic, and are currently in all phases of clinical trials. In general, initial results from these studies indicate only a modest benefit in unselected populations. In this Review, we discuss current challenges in developing MET inhibitors--including identification of predictive biomarkers--as well as the most-efficient ways to combine these drugs with other targeted agents or with classic chemotherapy or radiotherapy.
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30
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Wader KF, Fagerli UM, Børset M, Lydersen S, Hov H, Sundan A, Bofin A, Waage A. Immunohistochemical analysis of hepatocyte growth factor and c-Met in plasma cell disease. Histopathology 2012; 60:443-51. [DOI: 10.1111/j.1365-2559.2011.04112.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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31
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Xu C, Plattel W, van den Berg A, Rüther N, Huang X, Wang M, de Jong D, Vos H, van Imhoff G, Viardot A, Möller P, Poppema S, Diepstra A, Visser L. Expression of the c-Met oncogene by tumor cells predicts a favorable outcome in classical Hodgkin's lymphoma. Haematologica 2011; 97:572-8. [PMID: 22180430 DOI: 10.3324/haematol.2011.056101] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The c-Met signaling pathway regulates a variety of biological processes, including proliferation, survival and migration. Deregulated c-Met activation has been implicated in the pathogenesis and prognosis of many human malignancies. We studied the function and prognostic significance of c-Met and hepatocyte growth factor protein expression in patients with classical Hodgkin's lymphoma. DESIGN AND METHODS Expression of c-Met and its ligand, hepatocyte growth factor, were determined by immunohistochemistry. Prognostic values were defined in cohorts of German and Dutch patients with classical Hodgkin's lymphoma. Functional studies were performed on Hodgkin's lymphoma cell lines. RESULTS Expression of c-Met was detected in the tumor cells of 52% (80/153) of the patients and expression of its ligand, hepatocyte growth factor, in 8% (10/121) of the patients. c-Met expression correlated with a 5-year freedom from tumor progression of 94%, whereas lack of expression correlated with a 5-year freedom from tumor progression of 73% (P<0.001) in the combined cohort. In multivariate analysis both c-Met (hazard ratio 5.0, 95% confidence interval 1.9-13.3, P<0.001) and stage (hazard ratio 2.8, 95% confidence interval 1.2-6.4, P=0.014) were independent predictors for freedom from tumor progression. In functional studies activation with hepatocyte growth factor did not affect cell growth, while the c-Met inhibitor SU11274 suppressed cell growth by inducing G2/M cell cycle arrest. CONCLUSIONS Although functional studies showed an oncogenic role of the hepatocyte growth factor/c-Met signaling pathway in cell cycle progression, expression of c-Met in tumor cells from patients with classical Hodgkin's lymphoma strongly correlated with a favorable prognosis in two independent cohorts.
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Affiliation(s)
- Chuanhui Xu
- Department of Pathology and Medical Biology, University Medical Center Groningen, PO Box 30.001, Hanzeplein 1, HPC EA10, 9700, RB Groningen, the Netherlands
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Inno A, Di Salvatore M, Cenci T, Martini M, Orlandi A, Strippoli A, Ferrara AM, Bagalà C, Cassano A, Larocca LM, Barone C. Is there a role for IGF1R and c-MET pathways in resistance to cetuximab in metastatic colorectal cancer? Clin Colorectal Cancer 2011; 10:325-32. [PMID: 21729677 DOI: 10.1016/j.clcc.2011.03.028] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2010] [Revised: 03/02/2011] [Accepted: 03/15/2011] [Indexed: 02/06/2023]
Abstract
BACKGROUND The KRAS mutation is not responsible for all cases of resistance to anti-epidermal growth factor receptors (EGFRs) in metastatic colorectal cancer (mCRC), and new predictive and prognostic factors are actively being sought. PATIENTS AND METHODS We retrospectively evaluated the efficacy of a cetuximab-containing treatment in 73 patients with mCRC according to KRAS and BRAF mutational status as well as PTEN, c-MET, and insulin-like growth factor receptor (IGF1R) expression. RESULTS Overall response rate (ORR), median progression-free survival (mPFS), and median overall survival (mOS) were significantly lower in patients with KRAS mutation than in patients with KRAS wild-type; among the population with KRAS wild-type, only 2 patients with BRAF mutations were found and neither of them achieved a response. No significant association was found between PTEN and clinical outcome. Compared with low/normal expression, c-MET overexpression significantly correlated with shorter mPFS and mOS: 3 vs. 5 months (P = .018) and 11 vs. 10 months (P = .037), respectively. In patients with high IGF1R expression, mOS was significantly longer than in those with low/normal expression (14 vs. 8 months; P = .015). CONCLUSION KRAS mutation significantly correlates with a worse outcome in patients treated with cetuximab, whereas no definitive inference can be drawn about the role of BRAF mutation and PTEN loss of expression. Instead, c-MET overexpression might represent a negative prognostic factor in mCRC and may have a role in resistance to anti-EGFR therapy. Interestingly, IGF1R overexpression seems a favorable prognostic factor in mCRC.
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Affiliation(s)
- Alessandro Inno
- Division of Medical Oncology, Catholic University of the Sacred Heart, Rome, Italy
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33
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Steidl C, Connors JM, Gascoyne RD. Molecular Pathogenesis of Hodgkin's Lymphoma: Increasing Evidence of the Importance of the Microenvironment. J Clin Oncol 2011; 29:1812-26. [DOI: 10.1200/jco.2010.32.8401] [Citation(s) in RCA: 292] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Hodgkin's lymphoma (HL) represents the most common subtype of malignant lymphoma in young people in the Western world. Most patients can be cured with modern treatment strategies, although approximately 20% will die after relapse or progressive disease. The histologic hallmark of the disease is the presence of the characteristic Hodgkin Reed-Sternberg (HRS) cells in classical HL and so-called lymphocyte-predominant (LP) cells in nodular lymphocyte-predominant HL. HL is unique among all cancers because malignant cells are greatly outnumbered by reactive cells in the tumor microenvironment and make up only approximately 1% of the tumor. Expression of a variety of cytokines and chemokines by the HRS and LP cells is believed to be the driving force for an abnormal immune response, perpetuated by additional factors secreted by reactive cells in the microenvironment that help maintain the inflammatory milieu. The malignant HRS and LP cells manipulate the microenvironment, permitting them to develop their malignant phenotype fully and evade host immune attack. Gene expression signatures derived from non-neoplastic cells correlate well with response to initial and subsequent therapies, reflecting their functional relevance. Recent biomarker studies have added texture to clinical outcome predictors, and their incorporation into prognostic models may improve our understanding of the biologic correlates of treatment failure. Moreover, recent preclinical and clinical studies have demonstrated that the tumor microenvironment represents a promising therapeutic target, raising hope that novel treatment strategies focused on the interface between malignant and reactive cells will soon emerge.
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Affiliation(s)
- Christian Steidl
- From the British Columbia Cancer Agency, University of British Columbia, Vancouver, British Columbia, Canada
| | - Joseph M. Connors
- From the British Columbia Cancer Agency, University of British Columbia, Vancouver, British Columbia, Canada
| | - Randy D. Gascoyne
- From the British Columbia Cancer Agency, University of British Columbia, Vancouver, British Columbia, Canada
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Ullrich K, Wurster KD, Lamprecht B, Köchert K, Engert A, Dörken B, Janz M, Mathas S. BAY 43-9006/Sorafenib blocks CSF1R activity and induces apoptosis in various classical Hodgkin lymphoma cell lines. Br J Haematol 2011; 155:398-402. [PMID: 21517818 DOI: 10.1111/j.1365-2141.2011.08685.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Abstract
Despite its well-known histological and clinical features, Hodgkin's lymphoma (HL) has recently been the object of intense research activity, leading to a better understanding of its phenotype, molecular characteristics, histogenesis, and possible mechanisms of lymphomagenesis. There is complete consensus on the B-cell derivation of the tumor in most cases, and on the relevance of Epstein-Barr virus infection and defective cytokinesis in at least a proportion of patients. The REAL/WHO classification recognizes a basic distinction between lymphocyte predominance HL (LP-HL) and classic HL (cHL), reflecting the differences in clinical presentation and behavior, morphology, phenotype, and molecular features. cHL has been classified into four subtypes: lymphocyte rich, nodular sclerosing, with mixed cellularity, and lymphocyte depleted. The borders between cHL and anaplastic large-cell lymphoma have become sharper, whereas those between LP-HL and T-cell-rich B-cell lymphoma remain ill defined. Treatments adjusted to the pathobiological characteristics of the tumor in at-risk patients have been proposed and are on the way to being applied.
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36
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Gordin M, Tesio M, Cohen S, Gore Y, Lantner F, Leng L, Bucala R, Shachar I. c-Met and its ligand hepatocyte growth factor/scatter factor regulate mature B cell survival in a pathway induced by CD74. THE JOURNAL OF IMMUNOLOGY 2010; 185:2020-31. [PMID: 20639480 DOI: 10.4049/jimmunol.0902566] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The signals regulating the survival of mature splenic B cells have become a major focus in recent studies of B cell immunology. Durable B cell persistence in the periphery is dependent on survival signals that are transduced by cell surface receptors. In this study, we describe a novel biological mechanism involved in mature B cell homeostasis, the hepatocyte growth factor/scatter factor (HGF)/c-Met pathway. We demonstrate that c-Met activation by HGF leads to a survival cascade, whereas its blockade results in induction of mature B cell death. Our results emphasize a unique and critical function for c-Met signaling in the previously described macrophage migration inhibitory factor/CD74-induced survival pathway. Macrophage migration inhibitory factor recruits c-Met to the CD74/CD44 complex and thereby enables the induction of a signaling cascade within the cell. This signal results in HGF secretion, which stimulates the survival of the mature B cell population in an autocrine manner. Thus, the CD74-HGF/c-Met axis defines a novel physiologic survival pathway in mature B cells, resulting in the control of the humoral immune response.
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Affiliation(s)
- Maya Gordin
- Department of Immunology, Weizmann Institute of Science, Rehovot, Israel
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37
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Schmitz R, Stanelle J, Hansmann ML, Küppers R. Pathogenesis of classical and lymphocyte-predominant Hodgkin lymphoma. ANNUAL REVIEW OF PATHOLOGY 2009; 4:151-74. [PMID: 19400691 DOI: 10.1146/annurev.pathol.4.110807.092209] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Hodgkin and Reed-Sternberg (HRS) cells in classical Hodgkin lymphoma (HL) and lymphocytic and histiocytic (L&H) cells in nodular lymphocyte-predominant HL (NLPHL) are derived from germinal-center B cells. HRS cells have, however, largely lost their B cell phenotype and aberrantly express markers and transcriptional regulators of other hematolymphoid cell types. Deregulation of multiple signaling pathways and downstream transcription factors, including receptor tyrosine kinases, nuclear factor-kappa B (NF-kappaB), and Janus kinase/signal transducer and activator of transcription (JAK/STAT), is a further hallmark of HRS cells. These cells harbor genetic lesions that contribute to or cause increases in the activity of transcription factors of the NF-kappaB and STAT families. HRS cells are found within a mixed reactive cellular infiltrate and interact with these nonmalignant cells in a complex fashion that appears to be essential for HRS cell survival and proliferation. Less is known about the pathogenesis of L&H cells in NLPHL, but increases in the activity of receptor tyrosine kinases, NF-kappaB, and JAK/STAT have also been detected.
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Affiliation(s)
- Roland Schmitz
- Institute for Cell Biology (Tumor Research), Medical School, University of Duisburg-Essen, Essen, Germany.
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38
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Histological expression of angiogenic factors: VEGF, PDGFRα, and HIF-1α in Hodgkin lymphoma. Pathol Res Pract 2009; 205:11-20. [DOI: 10.1016/j.prp.2008.07.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2008] [Revised: 07/16/2008] [Accepted: 07/21/2008] [Indexed: 11/21/2022]
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39
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Sugiura K, Taketani S, Yoshimura T, Nishino T, Nishino N, Fujisawa JI, Hisha H, Inaba T, Ikehara S. Effect of hepatocyte growth factor on long term hematopoiesis of human progenitor cells in transgenic-sever combined immunodeficiency mice. Cytokine 2007; 37:218-26. [PMID: 17512212 DOI: 10.1016/j.cyto.2007.04.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2006] [Revised: 03/01/2007] [Accepted: 04/02/2007] [Indexed: 11/18/2022]
Abstract
Hepatocyte growth factor (HGF), which was originally isolated as a liver generating factor, enhances hematopoiesis. To study the effect of HGF on hematopoietic stem cells (HSCs) and hematopoietic progenitor cells (HPCs), we generated severe combined immunodeficiency (SCID) mice producing human (h) HGF and/or stem cell factor (SCF) by transferring the relevant genes to fertilized eggs, and then transplanted hematopoietic progenitors from human cord blood into the transgenic (Tg) SCID mice. Six months after transplantation, a significantly larger number of human cells were found in the Tg SCID mice than in non-Tg controls. Characteristically, the recipient SCID mice producing h HGF (HGF-SCID) had a significantly increased number of h CD41+ cells, whereas the SCF-SCID recipients had more CD11b+ cells. Significantly large numbers of CD34+ progenitors were found in the SCID mice transferred with both h HGF and h SCF genes (HGF/SCF-SCID) when compared with HGF-SCID or SCF-SCID mice. These results imply that HGF supports the differentiation of progenitors in megakaryocyte lineage, whereas SCF supports that in myeloid lineage. The results also imply that HGF acts on HSCs/HPCs as a synergistic proliferative factor combined with SCF. We have demonstrated the advantage of the human cytokine-producing animal in the maintenance of human HSCs.
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Affiliation(s)
- Kikuya Sugiura
- Department of Advanced Pathobiology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, Sakai City, Osaka, Japan.
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40
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Chow KC. The pulmonary source of hepatocyte growth factor in non-small cell lung cancer. Am J Respir Cell Mol Biol 2006; 36:131-2; discussion 132. [PMID: 17167107 DOI: 10.1165/ajrcmb.36.1.131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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41
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Dutton A, Woodman CB, Chukwuma MB, Last JIK, Wei W, Vockerodt M, Baumforth KRN, Flavell JR, Rowe M, Taylor AMR, Young LS, Murray PG. Bmi-1 is induced by the Epstein-Barr virus oncogene LMP1 and regulates the expression of viral target genes in Hodgkin lymphoma cells. Blood 2006; 109:2597-603. [PMID: 17148591 DOI: 10.1182/blood-2006-05-020545] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Abstract
Polycomb group (PcG) proteins are chromatin modifiers that are necessary for the maintenance and renewal of embryonic and adult stem cells. However, overexpression of the PcG protein, Bmi-1, causes lymphoma in transgenic mice. We show that Bmi-1 is up-regulated in Hodgkin lymphoma (HL) cells by the Epstein-Barr virus (EBV) oncogene latent membrane protein-1 (LMP1) and that this up-regulation is mediated by NF-κB signaling. We also show that Bmi-1 is up-regulated by NF-κB in EBV-negative HL cells. Down-regulation of LMP1 and Bmi-1 decreased the survival of HL cells, suggesting that Bmi-1 may mediate the prosurvival effects of LMP1-induced NF-κB signaling in HL cells. Transcriptional targets of Bmi-1 were identified after its knockdown in an HL cell line. We show here that Bmi-1 and LMP1 down-regulate the ataxia telangiectasia–mutated (ATM) tumor suppressor and conclude that Bmi-1 contributes to LMP1-induced oncogenesis in HL.
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Affiliation(s)
- Amanda Dutton
- Cancer Research UK Institute for Cancer Studies, The Medical School, University of Birmingham, Edgbaston, United Kingdom
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42
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Bräuninger A, Schmitz R, Bechtel D, Renné C, Hansmann ML, Küppers R. Molecular biology of Hodgkin's and Reed/Sternberg cells in Hodgkin's lymphoma. Int J Cancer 2006; 118:1853-61. [PMID: 16385563 DOI: 10.1002/ijc.21716] [Citation(s) in RCA: 134] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Hodgkin's and Reed/Sternberg (HRS) cells, the tumour cells in classical Hodgkin's lymphoma (HL), represent transformed B cells in nearly all cases. The detection of destructive somatic mutations in the rearranged immunoglobulin (Ig) genes of HRS cells in classical HL indicated that they originate from preapoptotic germinal centre (GC) B cells that lost the capacity to express a high-affinity B-cell receptor (BCR). Several aberrantly activated signalling pathways and transcription factors have been identified that contribute to the rescue of HRS cells from apoptosis. Among the deregulated signalling pathways, activation of multiple receptor tyrosine kinases in HRS cells appears to be a specific feature of HL. In about 40% of cases of classical HL the HRS cells are infected by Epstein-Barr virus (EBV), indicating an important role of EBV in HL pathogenesis. Interestingly, nearly all cases of HL with destructive Ig gene mutations eliminating BCR expression (e.g. nonsense mutations) are EBV-positive, suggesting that EBV-encoded genes have a particular function to prevent apoptosis of HRS-cell precursors that acquired such crippling mutations. This idea is further supported by the recent demonstration that isolated human GC B cells harbouring crippled Ig genes can be rescued by EBV from cell death, giving rise to lymphoblastoid cell lines. The molecular analysis of composite Hodgkin's and non-Hodgkin's lymphomas indicated that many cases develop from a common GC B-cell precursor in a multistep transformation process with both shared and distinct oncogenic events.
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Affiliation(s)
- Andreas Bräuninger
- Senckenberg Institute of Pathology, University of Frankfurt, Frankfurt, Germany
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43
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Luo B, Wang Y, Wang XF, Gao Y, Huang BH, Zhao P. Correlation of Epstein-Barr virus and its encoded proteins with Helicobacter pylori and expression of c-met and c-myc in gastric carcinoma. World J Gastroenterol 2006; 12:1842-8. [PMID: 16609989 PMCID: PMC4087508 DOI: 10.3748/wjg.v12.i12.1842] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2005] [Revised: 11/01/2005] [Accepted: 11/18/2005] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the interrelationship of Epstein-Barr virus (EBV) and EBV- encoded proteins with Helicobacter pylori (H pylori) infection and the expression of c-met and c-myc oncogene proteins in gastric carcinoma, and to explore their role in gastric carcinogenesis. METHODS One hundred and eighty-five gastric carcinoma tissues were detected by polymerase chain reaction (PCR)-Southern blot for EBV genome and in situ hybridization (ISH) for EBV-encoded small RNA 1 (EBER1). Gastric carcinoma with positive EBER1 signals was confirmed EBV-associated gastric carcinoma (EBVaGC). The status of H pylori infection in 185 gastric carcinomas was assessed by rapid urease test and PCR. The samples with positive PCR and urease test were defined as H pylori infection. The expression of c-met and c-myc oncogene proteins in tissues of EBVaGC and matched EBV-negative gastric carcinoma (EBVnGC) were examined by immunohistochemistry. RT-PCR and Southern hybridization were used to detect the expression of nuclear antigens (EBNAs) 1 and 2, latent membrane protein (LMP) 1, early genes BARF1 and BHRF1 in EBVaGC cases. RESULTS The positive rate of H pylori and EBV in 185 gastric carcinomas was 59.45% (110/185) and 7.03% (13/185) respectively. No difference was found in sex, age, pathological differentiation, clinical stages and lymph node metastasis between H pylori-positive and H pylori-negative gastric carcinomas. However, the positive rate of H pylori infection in the antrum gastric carcinomas was higher than that of cardia and body gastric carcinomas. In our series, age, pathological differentiation, clinical stages, lymph node metastasis and location of cancer were not different between EBVnGC and EBVaGC, while the positive rate of EBV in male patients was significantly higher than that of female patients. The positivity of H pylori in EBV-associated and EBV-negative gastric carcinomas was 46.15% (6/13) and 81.40%(104/172) respectively. There was no significant correlation between EBV and H pylori infection. The c-met overexpression was significantly higher in the EBVaGC group than in the EBVnGC group. However, c-met and c-myc expression did not show significant difference between the two groups. Transcripts of EBNA1 were detected in all 13 EBVaGCs, while both EBNA2 and LMP1 mRNA were not detected. Six of the 13 cases exhibited BARF1 transcripts and 2 exhibited BHRF1 transcripts. CONCLUSION The positivity of H pylori in EBVnGCs is higher than that of EBVaGCs, but no significant correlation is found between EBV infection and H pylori infection. H pylori-positive gastric carcinoma is predominant in antrum location, while EBVaGC has a tendency of predominance in cardia/body location. EBV infection is associated with c-met abnormal expression but not with c-myc protein in EBVaGC. c-met overexpression is not induced by LMP1. BARF1 and BHRF1 may play important roles in the tumorigenesis of EBVaGC through different pathways.
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Affiliation(s)
- Bing Luo
- Department of Microbiology, Qingdao University Medical College, 38 Dengzhou Road, Qingdao 266021, Shandong Province, China.
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44
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Tjin EPM, Groen RWJ, Vogelzang I, Derksen PWB, Klok MD, Meijer HP, van Eeden S, Pals ST, Spaargaren M. Functional analysis of HGF/MET signaling and aberrant HGF-activator expression in diffuse large B-cell lymphoma. Blood 2006; 107:760-8. [PMID: 16189274 DOI: 10.1182/blood-2005-05-1929] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
AbstractInappropriate activation of MET, the receptor tyrosine kinase for hepatocyte growth factor (HGF), has been implicated in tumorigenesis. Although we have previously shown that HGF/MET signaling controls survival and proliferation of multiple myeloma (MM), its role in the pathogenesis of other B-cell malignancies has remained largely unexplored. Here, we have examined a panel of 110 B-cell malignancies for MET expression, which, apart from MM (48%), was found to be largely confined to diffuse large B-cell lymphomas (DLBCLs) (30%). No amplification of the MET gene was found; however, mutational analysis revealed 2 germ-line missense mutations: R1166Q in the tyrosine kinase domain in 1 patient, and R988C in the juxtamembrane domain in 4 patients. The R988C mutation has recently been shown to enhance tumorigenesis. In MET-positive DLBCL cells, HGF induces MEK-dependent activation of ERK and PI3K-dependent phosphorylation of PKB, GSK3, and FOXO3a. Furthermore, HGF induces PI3K-dependent α4β1 integrin-mediated adhesion to VCAM-1 and fibronectin. Within the tumor microenvironment of DLBCL, HGF is provided by macrophages, whereas DLBCL cells themselves produce the serine protease HGF activator (HGFA), which autocatalyzes HGF activation. Taken together, these data indicate that HGF/MET signaling, and secretion of HGFA by DLBCL cells, contributes to lymphomagenesis in DLBCL. (Blood. 2006;107:760-768)
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MESH Headings
- 3-Phosphoinositide-Dependent Protein Kinases
- Cell Adhesion
- Class I Phosphatidylinositol 3-Kinases
- Forkhead Box Protein O3
- Forkhead Transcription Factors/metabolism
- Germ-Line Mutation
- Glycogen Synthase Kinase 3/metabolism
- Hepatocyte Growth Factor/genetics
- Hepatocyte Growth Factor/metabolism
- Humans
- In Situ Hybridization
- Lymphoma, B-Cell/genetics
- Lymphoma, B-Cell/metabolism
- Lymphoma, Large B-Cell, Diffuse/genetics
- Lymphoma, Large B-Cell, Diffuse/metabolism
- MAP Kinase Kinase 1/metabolism
- Macrophages
- Mitogen-Activated Protein Kinase 1/metabolism
- Mitogen-Activated Protein Kinase 3/metabolism
- Multiple Myeloma/genetics
- Multiple Myeloma/metabolism
- Mutation, Missense
- Phosphatidylinositol 3-Kinases/metabolism
- Phosphorylation
- Polymerase Chain Reaction
- Polymorphism, Single-Stranded Conformational
- Protein Serine-Threonine Kinases/metabolism
- Proto-Oncogene Proteins/metabolism
- Proto-Oncogene Proteins c-met
- RNA Probes
- RNA, Messenger
- Receptors, Growth Factor/metabolism
- Serine Endopeptidases/metabolism
- Signal Transduction
- Tumor Cells, Cultured
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Affiliation(s)
- Esther P M Tjin
- Department of Pathology, Academic Medical Center, Amsterdam, the Netherlands.
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45
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Druzgal CH, Chen Z, Yeh NT, Thomas GR, Ondrey FG, Duffey DC, Vilela RJ, Ende K, McCullagh L, Rudy SF, Muir C, Herscher LL, Morris JC, Albert PS, Van Waes C. A pilot study of longitudinal serum cytokine and angiogenesis factor levels as markers of therapeutic response and survival in patients with head and neck squamous cell carcinoma. Head Neck 2006; 27:771-84. [PMID: 15920746 DOI: 10.1002/hed.20246] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Head and neck squamous cell carcinomas (HNSCCs) were previously shown to express a repertoire of cytokines and angiogenesis factors that contribute to malignant pathogenesis and are detectable in serum. Pretreatment and posttreatment serum levels of cytokines and angiogenesis factors were evaluated as markers for outcome in patients with HNSCC. METHODS Baseline cytokine and factor levels of 29 patients with HNSCC were compared with those of 15 age-matched and sex-matched controls, and pretreatment and posttreatment levels of 22 of the patients eligible for treatment and followed for a median of 37 months were compared. RESULTS Mean serum concentrations of interleukin (IL)-6, IL-8, hepatocyte growth factor (HGF), vascular endothelial growth factor (VEGF), and growth regulated oncogene 1 (GRO-1) were increased in patients with HNSCC, but elevation of these factors was not associated with clinical outcome. However, changes in first posttreatment serum cytokine levels were observed for many of the patients consistent with response, progression, and survival. Later increases in IL-6 or HGF were observed in patients who had a relapse and inflammatory or infectious complications. A relationship between the change in the pretreatment and first posttreatment cytokine measurement with survival was detected for HGF, IL-8, IL-6, and VEGF using a Cox-proportional hazards model (p = .004, p = .06, p = .10, and p = .11). The association between longitudinal decreases in IL-6, IL-8, VEGF, and HGF throughout the follow-up with survival was detected with a time-dependent Cox model (p = .01, .07, .08, and .05, respectively). CONCLUSIONS Longitudinal changes in serum HGF, IL-6, IL-8, and VEGF were detected with treatment response, relapse, or complications in individual patients and were associated with survival, with HGF showing the strongest relationship with survival. HGF, IL-6, IL-8, and VEGF merit investigation as markers of response, survival, and recurrence in larger prospective studies.
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Affiliation(s)
- Colleen H Druzgal
- Head and Neck Surgery Branch, National Institute on Deafness and Other Communication Disorders, National Institutes of Health, Bldg. 10 CRC, Rm 4-2732, 10 Center Drive, Bethesda, MD 20892, USA
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Abstract
According to the WHO classification, Hodgkin's lymphoma (HL) is subdivided into a classical variant and a nodular lymphocyte predominant variant which are characterized by the presence of Hodgkin's and Reed-Sternberg (H-RS) cells or lymphocytic and histiocytic (L&H) cells, respectively. This article reviews genetic characteristics and transcriptional changes of H-RS and L&H cells, including recent knowledge about transforming mechanisms and signaling pathways that contribute to the antiapoptotic phenotype displayed by H-RS and L&H cells. We also discuss major cellular and molecular mediators contributing to the establishment and maintenance of a reactive background in HL-affected tissues. We believe that an in-depth understanding of the pathogenesis of HL will eventually lead to the development of novel biologically based therapeutic strategies in the near future.
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Affiliation(s)
- Daniel Re
- The Burnham Institute, John Reed Laboratory, 10901 N. Torrey Pines Rd., La Jolla, CA 92037, USA.
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47
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Abstract
In Hodgkin's lymphoma (HL), the B cell origin of the tumour cells, the Hodgkin and Reed-Sternberg (HRS) cells, has been disclosed by molecular single cell analysis about 10 yr ago. This finding formed the basis for various studies aimed to better understand the pathogenesis of this peculiar malignancy and the pathophysiology of the HRS cells. Work of our groups in this regard was focussed recently on two main topics, namely the study of differential gene expression in HRS cells and the pathogenesis of composite lymphomas. Composite lymphomas are combinations of HL and B cell non-Hodgkin lymphomas, that turned out to be often clonally related. By molecular analysis of several composite lymphomas for potential transforming events, we identified examples of both shared as well as distinct transforming events. Comparing gene expression profiles of HL-derived cell lines with the corresponding profiles from other B cell lymphomas and normal B cell subsets revealed a global down-regulation of the B cell-specific gene expression signature in HRS cells. Moreover, we identifed aberrant expression and activity of multiple receptor tyrosine kinases in HRS cells of classical and to a lesser extend lymphocyte predominant HL, which appears to be a unique feature of HL, and may offer novel strategies for treatment.
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Affiliation(s)
- Ralf Küppers
- Institute for Cell Biology (Tumour Research), University of Duisburg-Essen, Medical School, Essen, Germany.
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48
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Abstract
AbstractReclassification of Hodgkin disease as Hodgkin lymphoma (HL) represents a milestone in the lymphoma field, awarding recent insights in the molecular biology of Hodgkin and Reed-Sternberg (H-RS) cells and their environment. This review summarizes antiapoptotic and proproliferative pathways involved in the pathogenesis of this disease with the ultimate goal of translating laboratory knowledge into clinical decision making. The focus is on potential targets and novel drugs, which are discussed in the context of the complex biology of HL. Considering that HL patients are more likely to die from acute and late treatment-related toxicities than from HL itself, the introduction of targeted, biologically based therapies for HL patients with palliative and eventually curative intention might be justified. (Blood. 2005;105:4553-4560)
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Li L, Wang Y, Zhao P, Huang BH, Luo B. Relationship between Epstein-Barr virus and overexpression of c-Met protein in gastric carcinoma. Shijie Huaren Xiaohua Zazhi 2005; 13:312-316. [DOI: 10.11569/wcjd.v13.i3.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
AIM: To detect the amplification and expression of c-Met in Epstein-Barr virus (EBV)-associated gastric carcinoma (EBVaGC) and EBV-negative gastric carcinoma (EBVnGC), and to investigate the relationshi pof the amplification and expression of c-Met with EBV infection in the process of gastric carcinogenesis.
METHODS: The amplification of c-Met gene and the expression of c-Met protein in the tissues of EBVaGC (n = 13) and EBVnGC (n = 45) were detected by semi-quantitative polymerase chain reaction (PCR) and immunohistochemical methods, respectively.
RESULTS: The amplification of c-Met was observed in both EBVaGC and EBVnGC. The overamplification rates were 53.8% (7/13) in EBVaGC and 44.4% (20/45) in EBVnGC. There was no significant difference between the two types of caners. c-Met protein was positive in 76.9% (10/13) EBVaGC, and 64.4% (29/45) EBVnGC tissues. The difference between them was not significant either. The overexpression rate of c-Met protein in EBVaGC was significantly higher than that in EBVnGC (69.2% vs 37.8%, P = 0.0 446). No significant correlation was observed between the amplification and expression of c-Met with the tumor size, location, lymph node metastasis, differentiation degree or clinical staging.
CONCLUSION: c-Met is amplified in both EBVaGC and EBVnGC tissues. The amplification level of c-Met gene and the positive rate of c-Met protein are not significantly different between EBVaGC and EBVnGC. However, the overexpression rate of c-Met protein in EBVaGC is higher than that in EBVnGC.
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Renné C, Willenbrock K, Küppers R, Hansmann ML, Bräuninger A. Autocrine- and paracrine-activated receptor tyrosine kinases in classic Hodgkin lymphoma. Blood 2005; 105:4051-9. [PMID: 15677564 DOI: 10.1182/blood-2004-10-4008] [Citation(s) in RCA: 102] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The pathogenesis of Hodgkin lymphoma (HL) is still largely unknown. Based on a search for footprints of pathogenetic mechanisms in global RNA expression data of Hodgkin/Reed-Sternberg (HRS) cell lines, we analyzed the expression and activation of 6 receptor tyrosine kinases (RTKs) in classic HL. Immunohistochemistry revealed that the RTKs platelet-derived growth factor receptor A (PDGFRA), DDR2, EPHB1, RON, TRKB, and TRKA were each expressed in HRS cells in 30% to 75% of patients. These RTKs were not expressed in normal B cells, the origin of HRS cells, or in most B-cell non-Hodgkin lymphoma (NHL). In the majority of patients at least one RTK was expressed, and in most patients several RTKs were coexpressed, most prominently in Hodgkin lymphoma of the nodular sclerosis subtype. Phosphotyrosine-specific antibodies revealed exemplarily the activation of PDGFRA and TRKA/B and an elevation of cellular phosphotyrosine content. Immunohistochemistry for RTK ligands indicated that DDR2 and TRKA are likely activated in a paracrine fashion, whereas PDGFRA and EPHB1 seem to be activated by autocrine loops. Activating mutations were not detected in cDNA encoding the RTKs in HRS cell lines. These findings show the unprecedented coexpression of multiple RTKs in a tumor and indicate that aberrant RTK signaling is an important factor in HL pathogenesis and that it may be a novel therapeutic target.
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Affiliation(s)
- Christoph Renné
- Department of Pathology, University of Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt, Germany
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