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Weiss J, Gibbons K, Ehyaee V, Perez-Silos V, Zevallos A, Maienschein-Cline M, Brister E, Sverdlov M, Shah E, Balakrishna J, Symes E, Frederiksen JK, Gann PH, Post R, Lopez-Hisijos N, Reneau J, Venkataraman G, Bailey N, Brown NA, Xu ML, Wilcox RA, Inamdar K, Murga-Zamalloa C. Specific Polo-Like Kinase 1 Expression in Nodular Lymphocyte-Predominant Hodgkin Lymphoma Suggests an Intact Immune Surveillance Program. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:165-178. [PMID: 37923249 PMCID: PMC10768536 DOI: 10.1016/j.ajpath.2023.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 09/27/2023] [Accepted: 10/18/2023] [Indexed: 11/07/2023]
Abstract
Nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL) is a rare and relatively indolent B-cell lymphoma. Characteristically, the [lymphocyte-predominant (LP)] tumor cells are embedded in a microenvironment enriched in lymphocytes. More aggressive variants of mature B-cell and peripheral T-cell lymphomas exhibit nuclear expression of the polo-like kinase 1 (PLK1) protein, stabilizing MYC (alias c-myc) and associated with worse clinical outcomes. This study demonstrated expression of PLK1 in the LP cells in 100% of NLPHL cases (n = 76). In contrast, <5% of classic Hodgkin lymphoma cases (n = 70) showed PLK1 expression within the tumor cells. Loss-of-function approaches demonstrated that the expression of PLK1 promoted cell proliferation and increased MYC stability in NLPHL cell lines. Correlation with clinical parameters revealed that the increased expression of PLK1 was associated with advanced-stage disease in patients with NLPHL. A multiplex immunofluorescence panel coupled with artificial intelligence algorithms was used to correlate the composition of the tumor microenvironment with the proliferative stage of LP cells. The results showed that LP cells with PLK1 (high) expression were associated with increased numbers of cytotoxic and T-regulatory T cells. Overall, the findings demonstrate that PLK1 signaling increases NLPHL proliferation and constitutes a potential vulnerability that can be targeted with PLK1 inhibitors. An active immune surveillance program in NLPHL may be a critical mechanism limiting PLK1-dependent tumor growth.
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Affiliation(s)
- Jonathan Weiss
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Kathryn Gibbons
- Department of Pathology, Henry Ford Hospital, Detroit, Michigan
| | - Vida Ehyaee
- Department of Pathology, Rush University, Chicago, Illinois
| | - Vanessa Perez-Silos
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois
| | - Alejandro Zevallos
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois
| | | | - Eileen Brister
- Research Tissue Imaging Core and Research Histology Core, University of Illinois at Chicago, Chicago, Illinois
| | - Maria Sverdlov
- Research Tissue Imaging Core and Research Histology Core, University of Illinois at Chicago, Chicago, Illinois
| | - Eshana Shah
- Department of Internal Medicine, University of Illinois at Chicago, Chicago, Illinois
| | | | - Emily Symes
- Department of Pathology, University of Chicago, Chicago, Illinois
| | - John K Frederiksen
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois
| | - Peter H Gann
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois
| | - Robert Post
- Department of Pathology, University of Illinois at Chicago, Chicago, Illinois
| | | | - John Reneau
- Department of Internal Medicine, Ohio State University, Columbus, Ohio
| | | | - Nathanael Bailey
- Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Noah A Brown
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
| | - Mina L Xu
- Department of Pathology, Yale University, New Haven, Connecticut
| | - Ryan A Wilcox
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Kedar Inamdar
- Department of Pathology, Henry Ford Hospital, Detroit, Michigan.
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2
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Steidl C, Kridel R, Binkley M, Morton LM, Chadburn A. The pathobiology of select adolescent young adult lymphomas. EJHAEM 2023; 4:892-901. [PMID: 38024596 PMCID: PMC10660115 DOI: 10.1002/jha2.785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 08/01/2023] [Accepted: 08/05/2023] [Indexed: 12/01/2023]
Abstract
Lymphoid cancers are among the most frequent cancers diagnosed in adolescents and young adults (AYA), ranging from approximately 30%-35% of cancer diagnoses in adolescent patients (age 10-19) to approximately 10% in patients aged 30-39 years. Moreover, the specific distribution of lymphoid cancer types varies by age with substantial shifts in the subtype distributions between pediatric, AYA, adult, and older adult patients. Currently, biology studies specific to AYA lymphomas are rare and therefore insight into age-related pathogenesis is incomplete. This review focuses on the paradigmatic epidemiology and pathogenesis of select lymphomas, occurring in the AYA patient population. With the example of posttransplant lymphoproliferative disorders, nodular lymphocyte-predominant Hodgkin lymphoma, follicular lymphoma (incl. pediatric-type follicular lymphoma), and mediastinal lymphomas (incl. classic Hodgkin lymphoma, primary mediastinal large B cell lymphoma and mediastinal gray zone lymphoma), we here illustrate the current state-of-the-art in lymphoma classification, recent molecular insights including genomics, and translational opportunities. To improve outcome and quality of life, international collaboration in consortia dedicated to AYA lymphoma is needed to overcome challenges related to siloed biospecimens and data collections as well as to develop studies designed specifically for this unique population.
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Affiliation(s)
- Christian Steidl
- Centre for Lymphoid CancerBC CancerVancouverBritish ColumbiaCanada
| | - Robert Kridel
- Princess Margaret Cancer Centre ‐ University Health NetworkTorontoOntarioCanada
| | - Michael Binkley
- Department of Radiation OncologyStanford UniversityStanfordCaliforniaUSA
| | - Lindsay M. Morton
- Radiation Epidemiology BranchDivision of Cancer Epidemiology and GeneticsNational Cancer InstituteRockvilleMarylandUSA
| | - Amy Chadburn
- Department of Pathology and Laboratory MedicineWeill Cornell MedicineNew YorkNew YorkUSA
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Sadeghi Shoreh Deli A, Scharf S, Steiner Y, Bein J, Hansmann ML, Hartmann S. 3D analyses reveal T cells with activated nuclear features in T-cell/histiocyte-rich large B-cell lymphoma. Mod Pathol 2022; 35:1431-1438. [PMID: 35173297 PMCID: PMC9514992 DOI: 10.1038/s41379-022-01016-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 01/21/2022] [Accepted: 01/21/2022] [Indexed: 11/13/2022]
Abstract
Nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL) can show variable histological growth patterns and present remarkable overlap with T-cell/histiocyte-rich large B-cell lymphoma (THRLBCL). Previous studies suggest that NLPHL histological variants represent progression forms of NLPHL and THRLBCL transformation in aggressive disease. Since molecular studies of both lymphomas are limited due to the low number of tumor cells, the present study aimed to learn if a better understanding of these lymphomas is possible via detailed measurements of nuclear and cell size features in 2D and 3D sections. Whereas no significant differences were visible in 2D analyses, a slightly increased nuclear volume and a significantly enlarged cell size were noted in 3D measurements of the tumor cells of THRLBCL in comparison to typical NLPHL cases. Interestingly, not only was the size of the tumor cells increased in THRLBCL but also the nuclear volume of concomitant T cells in the reactive infiltrate when compared with typical NLPHL. Particularly CD8+ T cells had frequent contacts to tumor cells of THRLBCL. However, the nuclear volume of B cells was comparable in all cases. These results clearly demonstrate that 3D tissue analyses are superior to conventional 2D analyses of histological sections. Furthermore, the results point to a strong activation of T cells in THRLBCL, representing a cytotoxic response against the tumor cells with unclear effectiveness, resulting in enhanced swelling of the tumor cell bodies and limiting proliferative potential. Further molecular studies combining 3D tissue analyses and molecular data will help to gain profound insight into these ill-defined cellular processes.
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Affiliation(s)
- Aresu Sadeghi Shoreh Deli
- grid.7839.50000 0004 1936 9721Dr. Senckenberg Institute of Pathology, Goethe University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany
| | - Sonja Scharf
- grid.417999.b0000 0000 9260 4223Frankfurt Institute of Advanced Studies, Ruth-Moufang-Str. 1, 60438 Frankfurt am Main, Germany ,grid.7839.50000 0004 1936 9721Molecular Bioinformatics, Goethe University Frankfurt am Main, Robert-Mayer-Str. 11-15, 60325 Frankfurt am Main, Germany
| | - Yvonne Steiner
- grid.7839.50000 0004 1936 9721Dr. Senckenberg Institute of Pathology, Goethe University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany
| | - Julia Bein
- grid.7839.50000 0004 1936 9721Dr. Senckenberg Institute of Pathology, Goethe University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany
| | - Martin-Leo Hansmann
- grid.417999.b0000 0000 9260 4223Frankfurt Institute of Advanced Studies, Ruth-Moufang-Str. 1, 60438 Frankfurt am Main, Germany ,grid.7839.50000 0004 1936 9721Institute of General Pharmacology and Toxicology, Goethe University Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany
| | - Sylvia Hartmann
- Dr. Senckenberg Institute of Pathology, Goethe University Frankfurt, Theodor-Stern-Kai 7, D-60590, Frankfurt am Main, Germany.
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The Role of Oncogenes and Redox Signaling in the Regulation of PD-L1 in Cancer. Cancers (Basel) 2021; 13:cancers13174426. [PMID: 34503236 PMCID: PMC8431622 DOI: 10.3390/cancers13174426] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/29/2021] [Accepted: 08/16/2021] [Indexed: 12/17/2022] Open
Abstract
Tumor cells can evade the immune system via multiple mechanisms, including the dysregulation of the immune checkpoint signaling. These signaling molecules are important factors that can either stimulate or inhibit tumor immune response. Under normal physiological conditions, the interaction between programmed cell death ligand 1 (PD-L1) and its receptor, programmed cell death 1 (PD-1), negatively regulates T cell function. In cancer cells, high expression of PD-L1 plays a key role in cancer evasion of the immune surveillance and seems to be correlated with clinical response to immunotherapy. As such, it is important to understand various mechanisms by which PD-L1 is regulated. In this review article, we provide an up-to-date review of the different mechanisms that regulate PD-L1 expression in cancer. We will focus on the roles of oncogenic signals (c-Myc, EML4-ALK, K-ras and p53 mutants), growth factor receptors (EGFR and FGFR), and redox signaling in the regulation of PD-L1 expression and discuss their clinical relevance and therapeutic implications. These oncogenic signalings have common and distinct regulatory mechanisms and can also cooperatively control tumor PD-L1 expression. Finally, strategies to target PD-L1 expression in tumor microenvironment including combination therapies will be also discussed.
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Bein J, Thurner L, Hansmann M, Hartmann S. Lymphocyte predominant cells of nodular lymphocyte predominant Hodgkin lymphoma interact with rosetting T cells in an immunological synapse. Am J Hematol 2020; 95:1495-1502. [PMID: 32815561 DOI: 10.1002/ajh.25972] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/05/2020] [Accepted: 08/17/2020] [Indexed: 12/21/2022]
Abstract
Nodular lymphocyte predominant Hodgkin lymphoma (NLPHL) is a subtype of Hodgkin lymphoma with a preserved B-cell phenotype and follicular T helper (TFH ) cells rosetting around the tumor cells, the lymphocyte-predominant (LP) cells. As we recently described reactivity of the B-cell receptors of LP cells of some NLPHL cases with Moraxella spp. proteins, we hypothesized that LP cells could present peptides to rosetting T cells in a major histocompatibility complex class II (MHCII)-bound manner. Rosetting PD1+ T cells were present in the majority of NLPHL cases, both in typical (17/20) and variant patterns (16/19). In most cases, T-cell rosettes were CD69+ (typical NLPHL, 17/20; NLPHL variant, 14/19). Furthermore, both MHCII alpha and beta chains were expressed in the LP cells in 23/39 NLPHL. Proximity ligation assay and confocal laser imaging demonstrated interaction of the MHCII beta chain expressed by the LP cells and the T-cell receptor alpha chain expressed by rosetting T cells. We thus conclude that rosetting T cells in NLPHL express markers that are encountered after antigenic exposure, that MHCII is expressed by the LP cells, and that LP cells interact with rosetting T cells in an immunological synapse in a subset of cases. As they likely receive growth stimulatory signals in this way, blockade of this interaction, for example, by PD1-directed checkpoint inhibitors, could be a treatment option in a subset of cases in the future.
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Affiliation(s)
- Julia Bein
- Dr. Senckenberg Institute of Pathology Goethe University Frankfurt am Main Germany
| | - Lorenz Thurner
- Department of Internal Medicine I and José Carreras Center for Immuno‐ and Gene Therapy Saarland University Medical School Homburg/Saar Germany
| | - Martin‐Leo Hansmann
- Dr. Senckenberg Institute of Pathology Goethe University Frankfurt am Main Germany
- Frankfurt Institute of Advanced Studies Frankfurt am Main Germany
| | - Sylvia Hartmann
- Dr. Senckenberg Institute of Pathology Goethe University Frankfurt am Main Germany
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6
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Nodular lymphocyte predominant Hodgkin lymphoma: pathology, clinical course and relation to T-cell/histiocyte rich large B-cell lymphoma. Pathology 2020; 52:142-153. [DOI: 10.1016/j.pathol.2019.10.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/11/2019] [Accepted: 10/14/2019] [Indexed: 12/11/2022]
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7
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Bankov K, Döring C, Ustaszewski A, Giefing M, Herling M, Cencioni C, Spallotta F, Gaetano C, Küppers R, Hansmann ML, Hartmann S. Fibroblasts in Nodular Sclerosing Classical Hodgkin Lymphoma Are Defined by a Specific Phenotype and Protect Tumor Cells from Brentuximab-Vedotin Induced Injury. Cancers (Basel) 2019; 11:cancers11111687. [PMID: 31671543 PMCID: PMC6896072 DOI: 10.3390/cancers11111687] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 10/24/2019] [Accepted: 10/25/2019] [Indexed: 02/06/2023] Open
Abstract
Classical Hodgkin lymphoma (cHL) is one of the most common malignant lymphomas in Western Europe. The nodular sclerosing subtype of cHL (NS cHL) is characterized by a proliferation of fibroblasts in the tumor microenvironment, leading to fibrotic bands surrounding the lymphoma infiltrate. Several studies have described a crosstalk between the tumour cells of cHL, the Hodgkin- and Reed-Sternberg (HRS) cells, and cancer-associated fibroblasts. However, to date a deep molecular characterization of these fibroblasts is lacking. Thus, the aim of the present study is a comprehensive characterization of these fibroblasts. Gene expression profiling and methylation profiles of fibroblasts isolated from primary lymph node suspensions revealed persistent differences between fibroblasts obtained from NS cHL and lymphadenitis. NS cHL derived fibroblasts exhibit a myofibroblastic phenotype characterized by myocardin (MYOCD) expression. Moreover, TIMP3, an inhibitor of matrix metalloproteinases, was strongly upregulated in NS cHL fibroblasts, likely contributing to the accumulation of collagen in sclerotic bands of NS cHL. As previously shown for other types of cancer-associated fibroblasts, treatment by luteolin could reverse this fibroblast phenotype and decrease TIMP3 secretion. NS cHL fibroblasts showed enhanced proliferation when they were exposed to soluble factors released from HRS cells. For HRS cells, soluble factors from fibroblasts were not sufficient to protect them from Brentuximab-Vedotin induced cell death. However, HRS cells adherent to fibroblasts were protected from Brentuximab-Vedotin induced injury. In summary, we confirm the importance of fibroblasts for HRS cell survival and identify TIMP3 which probably contributes as a major factor to the typical fibrosis observed in NS cHL.
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Affiliation(s)
- Katrin Bankov
- Dr. Senckenberg Institute of Pathology, Goethe University, 60590 Frankfurt am Main, Germany.
- Department of Internal Medicine 1, Hospital of the J.W. Goethe University, 60590 Frankfurt am Main, Germany.
| | - Claudia Döring
- Dr. Senckenberg Institute of Pathology, Goethe University, 60590 Frankfurt am Main, Germany.
| | - Adam Ustaszewski
- Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznan, Poland.
| | - Maciej Giefing
- Institute of Human Genetics, Polish Academy of Sciences, 60-479 Poznan, Poland.
| | - Marco Herling
- The Laboratory of Lymphocyte Signalling and Oncoproteome, Department I of Internal Medicine, Center for Integrated Oncology (CIO) Aachen-Bonn-Cologne-Duesseldorf, CECAD and CMMC, University of Cologne, 50937 Cologne, Germany.
| | - Chiara Cencioni
- National Research Council (CNR), Institute for Systems Analysis and Computer Science, 00185 Rome, Italy.
| | - Francesco Spallotta
- Department of Oncology, University of Turin, 10060 Candiolo (Turin), Italy.
- Candiolo Cancer Institute, FPO-IRCCS, 10060 Candiolo (Turin), Italy.
| | - Carlo Gaetano
- Laboratorio di Epigenetica, Istituti Clinici Scientifici Maugeri IRCCS, 27100 Pavia, Italy.
| | - Ralf Küppers
- Institute of Cell Biology (Cancer Research), University of Duisburg-Essen, 45122 Essen, Germany.
| | - Martin-Leo Hansmann
- Dr. Senckenberg Institute of Pathology, Goethe University, 60590 Frankfurt am Main, Germany.
- Reference and Consultant Center for Lymph Node and Lymphoma Pathology, Goethe University, 60590 Frankfurt am Main, Germany.
- Frankfurt Institute of Advanced Studies, 60438 Frankfurt am Main, Germany.
| | - Sylvia Hartmann
- Dr. Senckenberg Institute of Pathology, Goethe University, 60590 Frankfurt am Main, Germany.
- Reference and Consultant Center for Lymph Node and Lymphoma Pathology, Goethe University, 60590 Frankfurt am Main, Germany.
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Franzese O, Torino F, Fuggetta MP, Aquino A, Roselli M, Bonmassar E, Giuliani A, D’Atri S. Tumor immunotherapy: drug-induced neoantigens (xenogenization) and immune checkpoint inhibitors. Oncotarget 2017; 8:41641-41669. [PMID: 28404974 PMCID: PMC5522228 DOI: 10.18632/oncotarget.16335] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 01/24/2017] [Indexed: 12/11/2022] Open
Abstract
More than 40 years ago, we discovered that novel transplantation antigens can be induced in vivo or in vitro by treating murine leukemia with dacarbazine. Years later, this phenomenon that we called "Chemical Xenogenization" (CX) and more recently, "Drug-Induced Xenogenization" (DIX), was reproduced by Thierry Boon with a mutagenic/carcinogenic compound (i.e. N-methyl-N'-nitro-N-nitrosoguanidine). In both cases, the molecular bases of DIX rely on mutagenesis induced by methyl adducts to oxygen-6 of DNA guanine. In the present review we illustrate the main DIX-related immune-pharmacodynamic properties of triazene compounds of clinical use (i.e. dacarbazine and temozolomide).In recent years, tumor immunotherapy has come back to the stage with the discovery of immune checkpoint inhibitors (ICpI) that show an extraordinary immune-enhancing activity. Here we illustrate the salient biochemical features of some of the most interesting ICpI and the up-to-day status of their clinical use. Moreover, we illustrate the literature showing the direct relationship between somatic mutation burden and susceptibility of cancer cells to host's immune responses.When DIX was discovered, we were not able to satisfactorily exploit the possible presence of triazene-induced neoantigens in malignant cells since no device was available to adequately enhance host's immune responses in clinical settings. Today, ICpI show unprecedented efficacy in terms of survival times, especially when elevated mutation load is associated with cancer cells. Therefore, in the future, mutation-dependent neoantigens obtained by appropriate pharmacological intervention appear to disclose a novel approach for enhancing the therapeutic efficacy of ICpI in cancer patients.
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Affiliation(s)
- Ornella Franzese
- Department of Systems Medicine, School of Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Francesco Torino
- Department of Systems Medicine, Medical Oncology, University of Rome Tor Vergata, Rome, Italy
| | - Maria Pia Fuggetta
- Institute of Translational Pharmacology, National Council of Research, Rome, Italy
| | - Angelo Aquino
- Department of Systems Medicine, School of Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Mario Roselli
- Department of Systems Medicine, Medical Oncology, University of Rome Tor Vergata, Rome, Italy
| | - Enzo Bonmassar
- Department of Systems Medicine, School of Medicine, University of Rome Tor Vergata, Rome, Italy
- Institute of Translational Pharmacology, National Council of Research, Rome, Italy
| | - Anna Giuliani
- Department of Systems Medicine, School of Medicine, University of Rome Tor Vergata, Rome, Italy
- Institute of Translational Pharmacology, National Council of Research, Rome, Italy
| | - Stefania D’Atri
- Laboratory of Molecular Oncology, Istituto Dermopatico dell’Immacolata-IRCCS, Rome, Italy
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Hurem S, Martín LM, Brede DA, Skjerve E, Nourizadeh-Lillabadi R, Lind OC, Christensen T, Berg V, Teien HC, Salbu B, Oughton DH, Aleström P, Lyche JL. Dose-dependent effects of gamma radiation on the early zebrafish development and gene expression. PLoS One 2017; 12:e0179259. [PMID: 28628668 PMCID: PMC5476279 DOI: 10.1371/journal.pone.0179259] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 05/27/2017] [Indexed: 01/07/2023] Open
Abstract
Ionizing radiation from natural sources or anthropogenic activity has the potential to cause oxidative stress or genetic damage in living organisms, through the ionization and excitation of molecules and the subsequent production of free radicals and reactive oxygen species (ROS). The present work focuses on radiation-induced biological effects using the zebrafish (Danio rerio) vertebrate model. Changes in developmental traits and gene expression in zebrafish were assessed after continuous external gamma irradiation (0.4, 3.9, 15 and 38 mGy/h) with corresponding controls, starting at 2.5 hours post fertilization (hpf) and lasting through embryogenesis and the early larval stage. The lowest dose rate corresponded to recommended benchmarks at which adverse effects are not expected to occur in aquatic ecosystems (2-10 mGy/day). The survival observed at 96 hours post fertilization (hpf) in the 38 mGy/h group was significantly lower, while other groups showed no significant difference compared to controls. The total hatching was significantly lower from controls in the 15 mGy/h group and a delay in hatching onset in the 0.4 mGy/h group was observed. The deformity frequency was significantly increased by prolonged exposure duration at dose rates ≥ 0.4 mGy/h. Molecular responses analyzed by RNA-seq at gastrulation (5.5 hpf transcriptome) indicate that the radiation induced adverse effects occurred during the earliest stages of development. A dose-response relationship was found in the numbers of differentially regulated genes in exposure groups compared to controls at a total dose as low as 1.62 mGy. Ingenuity Pathway Analysis identified retinoic acid receptor activation, apoptosis, and glutathione mediated detoxification signaling as the most affected pathways in the lower dose rate (0.54 mGy/h), while eif2 and mTOR, i.e., involved in the modulation of angiogenesis, were most affected in higher dose rates (5.4 and 10.9 mGy/h). By comparing gene expression data, myc was found to be the most significant upstream regulator, followed by tp53, TNF, hnf4a, TGFb1 and cebpa, while crabp2b and vegfab were identified as most frequent downstream target genes. These genes are associated with various developmental processes. The present findings show that continuous gamma irradiation (≥ 0.54 mGy/h) during early gastrula causes gene expression changes that are linked to developmental defects in zebrafish embryos.
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Affiliation(s)
- Selma Hurem
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Veterinary Medicine and Biosciences, Oslo, Norway
| | - Leonardo Martín Martín
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Veterinary Medicine and Biosciences, Oslo, Norway
- University of Camagüey Ignacio Agramonte y Loynaz (UC), Faculty of Agropecuary Sciences, Camagüey, Cuba
| | - Dag Anders Brede
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Environmental Sciences and Natural Resource Management, 1433 Ås, Norway
| | - Eystein Skjerve
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Veterinary Medicine and Biosciences, Oslo, Norway
| | - Rasoul Nourizadeh-Lillabadi
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Veterinary Medicine and Biosciences, Oslo, Norway
| | - Ole Christian Lind
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Environmental Sciences and Natural Resource Management, 1433 Ås, Norway
| | - Terje Christensen
- Norwegian Radiation Protection Authority (NRPA), CERAD CoE, Østerås, Norway
| | - Vidar Berg
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Veterinary Medicine and Biosciences, Oslo, Norway
| | - Hans-Christian Teien
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Environmental Sciences and Natural Resource Management, 1433 Ås, Norway
| | - Brit Salbu
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Environmental Sciences and Natural Resource Management, 1433 Ås, Norway
| | - Deborah Helen Oughton
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Environmental Sciences and Natural Resource Management, 1433 Ås, Norway
| | - Peter Aleström
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Veterinary Medicine and Biosciences, Oslo, Norway
| | - Jan Ludvig Lyche
- Norwegian University of Life Sciences (NMBU), CERAD CoE, Faculty of Veterinary Medicine and Biosciences, Oslo, Norway
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10
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Hartmann S, Hansmann ML. [Update on nodular lymphocyte predominant Hodgkin's lymphoma and related lesions]. DER PATHOLOGE 2016; 38:3-10. [PMID: 27999937 DOI: 10.1007/s00292-016-0257-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The present article gives an overview of novel developments in the diagnosis of nodular lymphocyte predominant Hodgkin's lymphoma with reference to the revised WHO classification from 2016. Differential diagnoses that are discussed are progressively transformed germinal centers, T cell/histiocyte-rich large B cell lymphoma as well as transformation into a diffuse large B cell lymphoma.
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Affiliation(s)
- S Hartmann
- Dr. Senckenbergisches Institut für Pathologie, Klinikum der Goethe Universität Frankfurt, Theodor-Stern-Kai 7, Frankfurt am Main, Deutschland.
| | - M-L Hansmann
- Dr. Senckenbergisches Institut für Pathologie, Klinikum der Goethe Universität Frankfurt, Theodor-Stern-Kai 7, Frankfurt am Main, Deutschland.
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