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Kirkoyun Uysal H, Koksal MO, Sarsar K, Soguksu P, Erkose Genc G, Yapar G, Ozdemir E, Onel M, Mese S, Demirci M, Erturan Z, Yurtseven E, Eraksoy OH, Agacfidan A. Distribution of Opportunistic Pathogens in People Living with HIV at a University Hospital in Istanbul over a One-Year Treatment Period and Its Association with CD4 T Cell Counts. Pathogens 2023; 12:1226. [PMID: 37887742 PMCID: PMC10610261 DOI: 10.3390/pathogens12101226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/05/2023] [Accepted: 10/06/2023] [Indexed: 10/28/2023] Open
Abstract
Among sexually transmitted diseases, HIV causes very serious clinical manifestations that can lead to death. As a result, millions of people have to live with this problem that threatens their health. The virus attacks the immune system of the host, especially CD4+ T lymphocytes, causing the suppression of the immune system. CD4, CD8 counts, and HIV RNA viral loads are monitored in HIV-infected patients with antiretroviral treatment, and CD4 counts play an important role in determining the effectiveness of the treatment. Despite the advances in treatment in the present day, opportunistic infections are the main cause of morbidity and mortality in these patients, and the evaluation of immunological parameters is valuable for the prognosis of the disease in this process. In the present study, the purpose was to investigate the opportunistic infections faced by naive HIV-positive patients who applied to our laboratory and were diagnosed between 2019 and 2022 during their one-year treatment period, and the correlation of the immunological parameters was also evaluated retrospectively using the hospital automation system and laboratory data. A total of 107 opportunistic causative microorganisms were identified in 87 of the 230 HIV-positive patients over one year. T. pallidum was detected in 43 (18.6%) of these patients, Cytomegalovirus (CMV) in 32 (13.9%), Epstein-Barr virus (EBV) in 9 (3.9%), Hepatitis B virus (HBV) in 10 (4.3%), C. albicans in 7 (3%), M. tuberculosis in 3 (1.3%), Hepatitis C virus (HCV) in 2 (0.8%), and C. glabrata in 1 (0.4%) patient. Although mono-agent co-infections were determined in 69 of 87 people living with HIV, two-agent co-infections were detected in 16 HIV patients, and three-agent co-infections were identified in two HIV patients. Considering the correlation between the CD4/CD8 ratio and infection positivity, a moderate negative correlation was determined with HIV RNA viral load and CMV infection. The CD4/CD8 ratio had a low negative correlation with EBV and C. albicans infections. It was also found that the follow-up of HIV RNA load in the diagnosis of T. pallidum, CMV, EBV, and C. albicans may be meaningful. Opportunistic infections mainly affect immunosuppressed patients and can be prevented with effective treatment. Although it is already known that HIV patients may face different infections during their treatment, it was concluded that more attention should be paid to T. pallidum, CMV, EBV, and C. albicans agents. These infections should be routinely monitored with HIV viral load and the CD4/CD8 ratio.
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Affiliation(s)
- Hayriye Kirkoyun Uysal
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey (E.O.); (M.O.); (A.A.)
| | - Muammer Osman Koksal
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey (E.O.); (M.O.); (A.A.)
| | - Kutay Sarsar
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey (E.O.); (M.O.); (A.A.)
| | - Pinar Soguksu
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey (E.O.); (M.O.); (A.A.)
| | - Gonca Erkose Genc
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey (E.O.); (M.O.); (A.A.)
| | - Gizem Yapar
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey (E.O.); (M.O.); (A.A.)
| | - Evrim Ozdemir
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey (E.O.); (M.O.); (A.A.)
| | - Mustafa Onel
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey (E.O.); (M.O.); (A.A.)
| | - Sevim Mese
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey (E.O.); (M.O.); (A.A.)
| | - Mehmet Demirci
- Department of Medical Microbiology, Faculty of Medicine, Kırklareli University, Kırklareli 39100, Turkey
| | - Zayre Erturan
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey (E.O.); (M.O.); (A.A.)
| | - Eray Yurtseven
- Department of Biostatistics, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey;
| | - Omer Haluk Eraksoy
- Department of Infectious Diseases and Clinical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey
| | - Ali Agacfidan
- Department of Medical Microbiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul 34093, Turkey (E.O.); (M.O.); (A.A.)
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2
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Afrasiabi A, Ahlenstiel C, Swaminathan S, Parnell GP. The interaction between Epstein-Barr virus and multiple sclerosis genetic risk loci: insights into disease pathogenesis and therapeutic opportunities. Clin Transl Immunology 2023; 12:e1454. [PMID: 37337612 PMCID: PMC10276892 DOI: 10.1002/cti2.1454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/30/2023] [Accepted: 06/05/2023] [Indexed: 06/21/2023] Open
Abstract
Multiple sclerosis (MS) is a chronic neurodegenerative autoimmune disease, characterised by the demyelination of neurons in the central nervous system. Whilst it is unclear what precisely leads to MS, it is believed that genetic predisposition combined with environmental factors plays a pivotal role. It is estimated that close to half the disease risk is determined by genetic factors. However, the risk of developing MS cannot be attributed to genetic factors alone, and environmental factors are likely to play a significant role by themselves or in concert with host genetics. Epstein-Barr virus (EBV) infection is the strongest known environmental risk factor for MS. There has been increasing evidence that leaves little doubt that EBV is necessary, but not sufficient, for developing MS. One plausible explanation is EBV may alter the host immune response in the presence of MS risk alleles and this contributes to the pathogenesis of MS. In this review, we discuss recent findings regarding how EBV infection may contribute to MS pathogenesis via interactions with genetic risk loci and discuss possible therapeutic interventions.
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Affiliation(s)
- Ali Afrasiabi
- EBV Molecular Lab, Centre for Immunology and Allergy Research, Westmead Institute for Medical ResearchUniversity of SydneySydneyNSWAustralia
- The Graduate School of Biomedical EngineeringUniversity of New South WalesSydneyNSWAustralia
| | - Chantelle Ahlenstiel
- Kirby InstituteUniversity of New South WalesSydneyNSWAustralia
- RNA InstituteUniversity of New South WalesSydneyNSWAustralia
| | - Sanjay Swaminathan
- EBV Molecular Lab, Centre for Immunology and Allergy Research, Westmead Institute for Medical ResearchUniversity of SydneySydneyNSWAustralia
- Department of MedicineWestern Sydney UniversitySydneyNSWAustralia
| | - Grant P Parnell
- EBV Molecular Lab, Centre for Immunology and Allergy Research, Westmead Institute for Medical ResearchUniversity of SydneySydneyNSWAustralia
- Biomedical Informatics and Digital Health, School of Medical Sciences, Faculty of Medicine and HealthThe University of SydneySydneyNSWAustralia
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3
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Zaffiri L, Messinger JE, Bush EJ, Staats JS, Patel P, Palmer SM, Weinhold KJ, Snyder LD, Luftig MA. Evaluation of host cellular responses to Epstein-Barr virus (EBV) in adult lung transplant patients with EBV-associated diseases. J Med Virol 2023; 95:e28724. [PMID: 37185866 PMCID: PMC10481801 DOI: 10.1002/jmv.28724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 03/27/2023] [Accepted: 04/02/2023] [Indexed: 05/17/2023]
Abstract
Epstein-Barr virus (EBV) reactivation is commonly observed in lung transplant recipients (LTRs). However, cellular immune responses to EBV in adult LTRs have not been well described. We aimed to study CD4/CD8 ratio, EBV-specific T cells polyfunctional responses and phenotypic changes in natural killer (NK) cells in adult LTRs presenting with EBV-associated diseases. The CD4/CD8 ratio was significantly decreased in LTRs with EBV DNAemia compared with LTRs without EBV DNAemia and healthy controls (HCs). Stimulation with EBV lytic antigen BZLF1 peptide pools induced significant individual and polyfunctional responses from CD8+ CD69+ T cells. Frequencies of CD8+ CD69+ T cells expressing CD107a were significantly higher in LTRs without EBV DNAemia than in LTRs with DNAemia. Frequencies of CD8+ CD69+ T cells concurrently expressing CD107a, IFN-γ, and TNF-α were significantly greater in LTRs with and without EBV DNAemia than in HCs. Finally, BZLF1 induced significantly higher frequencies of CD8+ CD69+ T cells expressing CD107a and IFN-γ in LTRs without EBV DNAemia when compared with EBNA3B. Frequency of more differentiated CD56dim CD16pos NK cells was significantly decreased in LTRs with EBV DNAemia and PTLD compared with HCs. In conclusion, we noted the presence of significant changes in circulating cellular immune responses to EBV in adult LTRs.
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Affiliation(s)
- Lorenzo Zaffiri
- Cedars-Sinai Medical Center, Los Angeles, CA 90048
- Division of Pulmonary and Critical Care, Duke University,
Durham, NC, USA
| | - Joshua E Messinger
- Department of Molecular Genetics and Microbiology, Duke
University School of Medicine, Durham, NC, 27710
| | - Erika J Bush
- Division of Pulmonary and Critical Care, Duke University,
Durham, NC, USA
| | | | | | - Scott M Palmer
- Division of Pulmonary and Critical Care, Duke University,
Durham, NC, USA
| | | | - Laurie D Snyder
- Division of Pulmonary and Critical Care, Duke University,
Durham, NC, USA
| | - Micah A. Luftig
- Department of Molecular Genetics and Microbiology, Duke
University School of Medicine, Durham, NC, 27710
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4
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Marrella V, Facoetti A, Cassani B. Cellular Senescence in Immunity against Infections. Int J Mol Sci 2022; 23:ijms231911845. [PMID: 36233146 PMCID: PMC9570409 DOI: 10.3390/ijms231911845] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/26/2022] [Accepted: 09/29/2022] [Indexed: 11/16/2022] Open
Abstract
Cellular senescence is characterized by irreversible cell cycle arrest in response to different triggers and an inflammatory secretome. Although originally described in fibroblasts and cell types of solid organs, cellular senescence affects most tissues with advancing age, including the lymphoid tissue, causing chronic inflammation and dysregulation of both innate and adaptive immune functions. Besides its normal occurrence, persistent microbial challenge or pathogenic microorganisms might also accelerate the activation of cellular aging, inducing the premature senescence of immune cells. Therapeutic strategies counteracting the detrimental effects of cellular senescence are being developed. Their application to target immune cells might have the potential to improve immune dysfunctions during aging and reduce the age-dependent susceptibility to infections. In this review, we discuss how immune senescence influences the host’s ability to resolve more common infections in the elderly and detail the different markers proposed to identify such senescent cells; the mechanisms by which infectious agents increase the extent of immune senescence are also reviewed. Finally, available senescence therapeutics are discussed in the context of their effects on immunity and against infections.
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Affiliation(s)
- Veronica Marrella
- UOS Milan Unit, Istituto di Ricerca Genetica e Biomedica (IRGB), CNR, 20138 Milan, Italy
- IRCCS Humanitas Research Hospital, 20089 Milan, Italy
| | - Amanda Facoetti
- Department of Biomedical Sciences, Humanitas University, 20090 Milan, Italy
| | - Barbara Cassani
- IRCCS Humanitas Research Hospital, 20089 Milan, Italy
- Department of Medical Biotechnologies and Translational Medicine, Università Degli Studi di Milano, 20089 Milan, Italy
- Correspondence:
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Byrne CM, Johnston C, Orem J, Okuku F, Huang ML, Rahman H, Wald A, Corey L, Schiffer JT, Casper C, Coombs D, Gantt S. Examining the dynamics of Epstein-Barr virus shedding in the tonsils and the impact of HIV-1 coinfection on daily saliva viral loads. PLoS Comput Biol 2021; 17:e1009072. [PMID: 34153032 PMCID: PMC8248743 DOI: 10.1371/journal.pcbi.1009072] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 07/01/2021] [Accepted: 05/12/2021] [Indexed: 11/19/2022] Open
Abstract
Epstein-Barr virus (EBV) is transmitted by saliva and is a major cause of cancer, particularly in people living with HIV/AIDS. Here, we describe the frequency and quantity of EBV detection in the saliva of Ugandan adults with and without HIV-1 infection and use these data to develop a novel mathematical model of EBV infection in the tonsils. Eligible cohort participants were not taking antiviral medications, and those with HIV-1 infection had a CD4 count >200 cells/mm3. Over a 4-week period, participants provided daily oral swabs that we analysed for the presence and quantity of EBV. Compared with HIV-1 uninfected participants, HIV-1 coinfected participants had an increased risk of EBV detection in their saliva (IRR = 1.27, 95% CI = 1.10-1.47) and higher viral loads in positive samples. We used these data to develop a stochastic, mechanistic mathematical model that describes the dynamics of EBV, infected cells, and immune response within the tonsillar epithelium to analyse potential factors that may cause EBV infection to be more severe in HIV-1 coinfected participants. The model, fit using Approximate Bayesian Computation, showed high fidelity to daily oral shedding data and matched key summary statistics. When evaluating how model parameters differed among participants with and without HIV-1 coinfection, results suggest HIV-1 coinfected individuals have higher rates of B cell reactivation, which can seed new infection in the tonsils and lower rates of an EBV-specific immune response. Subsequently, both these traits may explain higher and more frequent EBV detection in the saliva of HIV-1 coinfected individuals.
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Affiliation(s)
- Catherine M. Byrne
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada
- Institute of Applied Mathematics, University of British Columbia, Vancouver, British Columbia, Canada
- British Columbia Children’s Hospital Research Institute, Vancouver, British Columbia, Canada
| | - Christine Johnston
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Jackson Orem
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Uganda Cancer Institute, Kampala, Uganda
| | - Fred Okuku
- Uganda Cancer Institute, Kampala, Uganda
| | - Meei-Li Huang
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Laboratory Medicine, University of Washington, Seattle, Washington, United States of America
| | - Habibur Rahman
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Anna Wald
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Laboratory Medicine, University of Washington, Seattle, Washington, United States of America
- Department of Epidemiology, University of Washington, Seattle, Washington, United States of America
| | - Lawrence Corey
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Laboratory Medicine, University of Washington, Seattle, Washington, United States of America
| | - Joshua T. Schiffer
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Corey Casper
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Infectious Disease Research Institute, Seattle, Washington, United States of America
| | - Daniel Coombs
- Institute of Applied Mathematics, University of British Columbia, Vancouver, British Columbia, Canada
- Department of Mathematics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Soren Gantt
- Département de Microbiologie, Infectiologie et Immunologie, Université de Montréal, Montréal, Québec, Canada
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6
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de Carvalho PS, Leal FE, Soares MA. Clinical and Molecular Properties of Human Immunodeficiency Virus-Related Diffuse Large B-Cell Lymphoma. Front Oncol 2021; 11:675353. [PMID: 33996608 PMCID: PMC8117347 DOI: 10.3389/fonc.2021.675353] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/14/2021] [Indexed: 12/15/2022] Open
Abstract
Non-Hodgkin lymphoma is the most common malignancy affecting people living with HIV (PLWH). Among its several subtypes, diffuse large B-cell lymphoma (DLBCL) is an important manifestation within the HIV-infected compartment of the population. Since HIV is able to modulate B cells and promote lymphomagenesis through direct and indirect mechanisms, HIV-related DLBCL has specific characteristics. In this review, we address the clinical and molecular properties of DLBCL disease in the context of HIV infection, as well as the mechanisms by which HIV is able to modulate B lymphocytes and induce their transformation into lymphoma.
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Affiliation(s)
- Pedro S de Carvalho
- Programa de Oncovirologia, Instituto Nacional do Câncer, Rio de Janeiro, Brazil
| | - Fabio E Leal
- Programa de Oncovirologia, Instituto Nacional do Câncer, Rio de Janeiro, Brazil
| | - Marcelo A Soares
- Programa de Oncovirologia, Instituto Nacional do Câncer, Rio de Janeiro, Brazil.,Departamento de Genética, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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7
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Feuillet V, Canard B, Trautmann A. Combining Antivirals and Immunomodulators to Fight COVID-19. Trends Immunol 2020; 42:31-44. [PMID: 33281063 PMCID: PMC7664349 DOI: 10.1016/j.it.2020.11.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 11/06/2020] [Accepted: 11/06/2020] [Indexed: 12/15/2022]
Abstract
The majority of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-infected individuals remain paucisymptomatic, contrasting with a minority of infected individuals in danger of death. Here, we speculate that the robust disease resistance of most individuals is due to a swift production of type I interferon (IFNα/β), presumably sufficient to lower the viremia. A minority of infected individuals with a preexisting chronic inflammatory state fail to mount this early efficient response, leading to a delayed harmful inflammatory response. To improve the epidemiological scenario, we propose combining: (i) the development of efficient antivirals administered early enough to assist in the production of endogenous IFNα/β; (ii) potentiating early IFN responses; (iii) administering anti-inflammatory treatments when needed, but not too early to interfere with endogenous antiviral responses. Although the coronavirus disease 2019 (COVID-19) pandemic is exceptional, lessons may be learned from previous outbreaks (coronavirus, dengue, influenza viruses), especially when considering drug design and cytokine storms. We propose that efficient treatments for COVID-19 patients should combine antivirals and immunomodulators. This combination and, especially the use of immunomodulators, might be adapted according to the disease stage. Among the repurposed antiviral drugs currently being tested against COVID-19, none shows high potency. We posit that the innate type 1 interferon (IFNα/β)-dependent antiviral immune response against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection should be amplified. To this end, we propose two putative approaches: the inhibition of transforming growth factor (TGFβ) signaling, and perhaps, the administration of 1,8-cineole. We suggest that an early diagnosis during COVID-19 is essential when aiming to purposely combine antivirals with the use of an immunomodulator (e.g., a drug to potentiate IFNα/β), ideally early in the disease course to lower the risk of cytokine storm manifestation. When the disease becomes severe, the new combination should prioritize targeting of the cytokine storm.
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Affiliation(s)
- Vincent Feuillet
- Aix-Marseille University, CNRS, INSERM, Centre d'Immunologie de Marseille-Luminy, Marseille, France.
| | - Bruno Canard
- CNRS UMR 7257, Aix-Marseille University, Marseille, France
| | - Alain Trautmann
- Université de Paris, Institut Cochin, INSERM, CNRS, F-75014 Paris, France
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8
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McHugh D, Myburgh R, Caduff N, Spohn M, Kok YL, Keller CW, Murer A, Chatterjee B, Rühl J, Engelmann C, Chijioke O, Quast I, Shilaih M, Strouvelle VP, Neumann K, Menter T, Dirnhofer S, Lam JK, Hui KF, Bredl S, Schlaepfer E, Sorce S, Zbinden A, Capaul R, Lünemann JD, Aguzzi A, Chiang AK, Kempf W, Trkola A, Metzner KJ, Manz MG, Grundhoff A, Speck RF, Münz C. EBV renders B cells susceptible to HIV-1 in humanized mice. Life Sci Alliance 2020; 3:3/8/e202000640. [PMID: 32576602 PMCID: PMC7335381 DOI: 10.26508/lsa.202000640] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 06/10/2020] [Accepted: 06/11/2020] [Indexed: 12/15/2022] Open
Abstract
HIV and EBV are human pathogens that cause a considerable burden to worldwide health. In combination, these viruses are linked to AIDS-associated lymphomas. We found that EBV, which transforms B cells, renders them susceptible to HIV-1 infection in a CXCR4 and CD4-dependent manner in vitro and that CXCR4-tropic HIV-1 integrates into the genome of these B cells with the same molecular profile as in autologous CD4+ T cells. In addition, we established a humanized mouse model to investigate the in vivo interactions of EBV and HIV-1 upon coinfection. The respective mice that reconstitute human immune system components upon transplantation with CD34+ human hematopoietic progenitor cells could recapitulate aspects of EBV and HIV immunobiology observed in dual-infected patients. Upon coinfection of humanized mice, EBV/HIV dual-infected B cells could be detected, but were susceptible to CD8+ T-cell-mediated immune control.
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Affiliation(s)
- Donal McHugh
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Renier Myburgh
- Department of Medical Oncology and Hematology, University and University Hospital of Zürich, Zürich, Switzerland
| | - Nicole Caduff
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Michael Spohn
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Yik Lim Kok
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zürich, Zürich, Switzerland.,Institute of Medical Virology, University of Zürich, Zürich, Switzerland
| | - Christian W Keller
- Neuroinflammation, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Anita Murer
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Bithi Chatterjee
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Julia Rühl
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Christine Engelmann
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Obinna Chijioke
- Cellular Immunotherapy, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland.,Institute of Pathology and Medical Genetics, University Hospital of Basel, Basel, Switzerland
| | - Isaak Quast
- Neuroinflammation, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Mohaned Shilaih
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zürich, Zürich, Switzerland
| | - Victoria P Strouvelle
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zürich, Zürich, Switzerland.,Institute of Medical Virology, University of Zürich, Zürich, Switzerland
| | - Kathrin Neumann
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zürich, Zürich, Switzerland
| | - Thomas Menter
- Institute of Pathology and Medical Genetics, University Hospital of Basel, Basel, Switzerland
| | - Stephan Dirnhofer
- Institute of Pathology and Medical Genetics, University Hospital of Basel, Basel, Switzerland
| | - Janice Kp Lam
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong
| | - Kwai F Hui
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong
| | - Simon Bredl
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zürich, Zürich, Switzerland
| | - Erika Schlaepfer
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zürich, Zürich, Switzerland
| | - Silvia Sorce
- Institute of Neuropathology, University Hospital of Zurich, Zurich, Switzerland
| | - Andrea Zbinden
- Institute of Medical Virology, University of Zürich, Zürich, Switzerland
| | - Riccarda Capaul
- Institute of Medical Virology, University of Zürich, Zürich, Switzerland
| | - Jan D Lünemann
- Neuroinflammation, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
| | - Adriano Aguzzi
- Institute of Neuropathology, University Hospital of Zurich, Zurich, Switzerland
| | - Alan Ks Chiang
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, Queen Mary Hospital, The University of Hong Kong, Pokfulam, Hong Kong
| | - Werner Kempf
- Kempf und Pfaltz Histologische Diagnostik AG, Zürich, Switzerland
| | - Alexandra Trkola
- Institute of Medical Virology, University of Zürich, Zürich, Switzerland
| | - Karin J Metzner
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zürich, Zürich, Switzerland.,Institute of Medical Virology, University of Zürich, Zürich, Switzerland
| | - Markus G Manz
- Department of Medical Oncology and Hematology, University and University Hospital of Zürich, Zürich, Switzerland
| | - Adam Grundhoff
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Roberto F Speck
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital of Zürich, Zürich, Switzerland
| | - Christian Münz
- Viral Immunobiology, Institute of Experimental Immunology, University of Zürich, Zürich, Switzerland
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9
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Naqvi AR. Immunomodulatory roles of human herpesvirus-encoded microRNA in host-virus interaction. Rev Med Virol 2020; 30:e2081. [PMID: 31432608 PMCID: PMC7398577 DOI: 10.1002/rmv.2081] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Revised: 07/31/2019] [Accepted: 08/01/2019] [Indexed: 12/18/2022]
Abstract
Human herpesviruses (HHV) are large, double stranded, DNA viruses with high seroprevalence across the globe. Clinical manifestation of primary HHV infection resolve shortly, however, this period is prolonged in immunocompromised patients or individuals with suppressed immunity. Examining molecular mechanisms of HHV-encoded virulence factors can provide finer details of HHV-host interaction. A unique genetic feature of most members of HHV is that they encode multiple microRNAs (miR). In this review, I will provide mechanistic insights into the immunomodulatory functions of herpesvirus-encoded viral miR (v-miR) that favor viral persistence and spread by ingenious immune evasion schemes. Similar to host miR, v-miR can simultaneously regulate expression of multiple transcripts including host- and virus-derived. V-miRs, by virtue of their direct interaction with various transcripts, can regulate expression of critical components of host innate and adaptive immune system. V-miRs are also exported through exosomal route and gain entry into various cells even at distant sites, thereby allowing HHV to manipulate cellular and tissue immunity. Targeting v-miR may serve as a novel and promising therapeutic candidate to mitigate HHV-mediated clinical manifestations.
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Affiliation(s)
- Afsar R Naqvi
- Mucosal Immunology Lab, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, USA
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10
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Hernández DM, Valderrama S, Gualtero S, Hernández C, López M, Herrera MV, Solano J, Fiorentino S, Quijano S. Loss of T-Cell Multifunctionality and TCR-Vβ Repertoire Against Epstein-Barr Virus Is Associated With Worse Prognosis and Clinical Parameters in HIV + Patients. Front Immunol 2018; 9:2291. [PMID: 30337929 PMCID: PMC6180205 DOI: 10.3389/fimmu.2018.02291] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 09/14/2018] [Indexed: 12/16/2022] Open
Abstract
Epstein-Barr virus (EBV) is an oncogenic virus associated with the development of aggressive and poor-prognosis B-cell lymphomas in patients infected with human immunodeficiency virus (HIV+ patients). The most important risk factors for these malignancies include immune dysfunction, chronic immune activation, and loss of T-cell receptor (TCR) repertoire. The combination of all these factors can favor the reactivation of EBV, malignant cell transformation, and clinical progression toward B-cell lymphomas. The overarching aim of this study was to evaluate the frequency, phenotype, functionality, and distribution of TCR clonotypes for EBV-specific T-cell subpopulations in HIV+ patients at different clinical stages and for HIV+ patients with B-cell lymphoma, as well as to establish their association with clinical variables of prognostic value. Factors were studied in 56 HIV+ patients at different clinical stages and in six HIV+ subjects with diagnosed B-cell lymphoma. We found a significant decrease in all subpopulations of EBV-specific CD4+ T cells from HIV+ patients at stage 3 and with B-cell lymphoma. EBV-specific effector CD8+ T cells, particularly effector memory cells, were also reduced in HIV+ patients with B-cell lymphoma. Interestingly, these cells were unable to produce IFN-γ and lacked multifunctionality in HIV+ patients. The TCR-Vβ repertoire, which is key for protection against EBV in healthy individuals, was less diverse in HIV+ patients due to a lower frequency of TCR-Vβ2+, Vβ4+, Vβ7.1+, Vβ9+, Vβ13.6+, Vβ14+, Vβ17+, Vβ22+ CD4+, Vβ14+, and Vβ17+ CD8+ T cells. HIV+ patients with positive plasma EBV loads (EBV+HIV+) had a noteworthy decrease in the levels of both TNF-α+ and multifunctional TNF-α+/IL-2+ and TNF-α+/IFN-γ+ CD8+ T cells. Altogether, our findings demonstrate that HIV+ patients have significant alterations in the immune response to EBV (poor-quality immunity) that can favor viral reactivation, escalating the risk for developing EBV-associated B-cell lymphomas.
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Affiliation(s)
- Diana M Hernández
- Grupo de Inmunobiología y Biología Celular, Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Sandra Valderrama
- Grupo de Investigación en Enfermedades Infecciosas, Hospital Universitario San Ignacio, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Sandra Gualtero
- Grupo de Investigación en Enfermedades Infecciosas, Hospital Universitario San Ignacio, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Catalina Hernández
- Grupo de Investigación en Enfermedades Infecciosas, Hospital Universitario San Ignacio, Facultad de Medicina, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Marcos López
- Grupo de Investigación Biomédica Traslacional, Fundación Cardiovascular de Colombia, Floridablanca, Colombia
| | | | - Julio Solano
- Servicio de Hematología Hospital Universitario San Ignacio, Bogotá, Colombia
| | - Susana Fiorentino
- Grupo de Inmunobiología y Biología Celular, Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
| | - Sandra Quijano
- Grupo de Inmunobiología y Biología Celular, Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
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11
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Smit DP, Meyer D, Maritz J, De Groot-Mijnes JDF. Authors Reply to Letter to the Editor– In Response to: “Smit D, Meyer D, Maritz J, et al. Polymerase Chain Reaction and Goldmann-Witmer Coefficient to Examine the Role of Epstein-Barr Virus in Uveitis”. Ocul Immunol Inflamm 2017; 27:116. [DOI: 10.1080/09273948.2017.1406957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Derrick P. Smit
- Division of Ophthalmology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - David Meyer
- Division of Ophthalmology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Jean Maritz
- Division of Medical Virology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University and the National Health Laboratory Service, Cape Town, South Africa
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12
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Sugita Y, Furuta T, Ohshima K, Komaki S, Miyoshi J, Morioka M, Abe H, Nozawa T, Fujii Y, Takahashi H, Kakita A. The perivascular microenvironment in Epstein-Barr virus positive primary central nervous system lymphoma: The role of programmed cell death 1 and programmed cell death ligand 1. Neuropathology 2017; 38:125-134. [DOI: 10.1111/neup.12435] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/15/2017] [Accepted: 09/17/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Yasuo Sugita
- Department of Pathology; Kurume University School of Medicine; Kurume Japan
| | - Takuya Furuta
- Department of Pathology; Kurume University School of Medicine; Kurume Japan
| | - Koichi Ohshima
- Department of Pathology; Kurume University School of Medicine; Kurume Japan
| | - Satoru Komaki
- Department of Pathology; Kurume University School of Medicine; Kurume Japan
- Department of Neurosurgery; Kurume University School of Medicine; Kurume Japan
| | - Junko Miyoshi
- Department of Pathology; Kurume University School of Medicine; Kurume Japan
- Department of Neurosurgery; Kurume University School of Medicine; Kurume Japan
| | - Motohiro Morioka
- Department of Neurosurgery; Kurume University School of Medicine; Kurume Japan
| | - Hideyuki Abe
- Department of Surgical Pathology; Kurume University School of Medicine; Kurume Japan
| | - Takanori Nozawa
- Department of Neurosurgery; Brain Research Institute, Niigata University; Niigata Japan
- Department of Pathology; Brain Research Institute, Niigata University; Niigata Japan
| | - Yukihiko Fujii
- Department of Neurosurgery; Brain Research Institute, Niigata University; Niigata Japan
| | - Hitoshi Takahashi
- Department of Pathology; Brain Research Institute, Niigata University; Niigata Japan
| | - Akiyoshi Kakita
- Department of Pathology; Brain Research Institute, Niigata University; Niigata Japan
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13
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Bellon M, Nicot C. Telomere Dynamics in Immune Senescence and Exhaustion Triggered by Chronic Viral Infection. Viruses 2017; 9:v9100289. [PMID: 28981470 PMCID: PMC5691640 DOI: 10.3390/v9100289] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Revised: 09/28/2017] [Accepted: 09/29/2017] [Indexed: 02/06/2023] Open
Abstract
The progressive loss of immunological memory during aging correlates with a reduced proliferative capacity and shortened telomeres of T cells. Growing evidence suggests that this phenotype is recapitulated during chronic viral infection. The antigenic volume imposed by persistent and latent viruses exposes the immune system to unique challenges that lead to host T-cell exhaustion, characterized by impaired T-cell functions. These dysfunctional memory T cells lack telomerase, the protein capable of extending and stabilizing chromosome ends, imposing constraints on telomere dynamics. A deleterious consequence of this excessive telomere shortening is the premature induction of replicative senescence of viral-specific CD8+ memory T cells. While senescent cells are unable to expand, they can survive for extended periods of time and are more resistant to apoptotic signals. This review takes a closer look at T-cell exhaustion in chronic viruses known to cause human disease: Epstein–Barr virus (EBV), Hepatitis B/C/D virus (HBV/HCV/HDV), human herpesvirus 8 (HHV-8), human immunodeficiency virus (HIV), human T-cell leukemia virus type I (HTLV-I), human papillomavirus (HPV), herpes simplex virus-1/2 (HSV-1/2), and Varicella–Zoster virus (VZV). Current literature linking T-cell exhaustion with critical telomere lengths and immune senescence are discussed. The concept that enduring antigen stimulation leads to T-cell exhaustion that favors telomere attrition and a cell fate marked by enhanced T-cell senescence appears to be a common endpoint to chronic viral infections.
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Affiliation(s)
- Marcia Bellon
- Department of Pathology, Center for Viral Pathogenesis, University of Kansas Medical Center, Kansas City, KS 66160, USA.
| | - Christophe Nicot
- Department of Pathology, Center for Viral Pathogenesis, University of Kansas Medical Center, Kansas City, KS 66160, USA.
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14
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EBV and HHV-6 Circulating Subtypes in People Living with HIV in Burkina Faso, Impact on CD4 T cell count and HIV Viral Load. Mediterr J Hematol Infect Dis 2017; 9:e2017049. [PMID: 28894558 PMCID: PMC5584768 DOI: 10.4084/mjhid.2017.049] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/05/2017] [Indexed: 12/13/2022] Open
Abstract
Epstein Barr Virus (EBV) and Human Herpes Virus 6 (HHV-6) are responsible for severe diseases, particularly in immunocompromised persons. There is limited data of the infection of these opportunistic viruses in Burkina Faso. The purpose of this study was to characterize EBV and HHV-6 subtypes and to assess their impact on CD4 T cell count, HIV-1 viral load and antiretroviral treatment in people living with HIV-1. The study population consisted of 238 HIV-positive patients with information on the CD4 T cell count, HIV-1 viral load and HAART. Venous blood samples collected in EDTA tubes were used for EBV and HHV-6 Real Time PCR subtyping. An infection rate of 6.7% (16/238) and 7.1% (17/238) were found respectively for EBV and HHV-6 in the present study. Among EBV infections, similar prevalence was noted for both subtypes (3.9% (9/238) for EBV-1 vs 4.6% (11/238) for EBV-2) with 2.1% (5/238) of co-infection. HHV-6A infection represented 6.3% (15/238) of the study population against 5.0% (12/238) for HHV-6B. EBV-2 infection was significantly higher in patients with CD4 T cell count ≥ 500 compared to those with CD4 T cell count less than 500 cells (1.65% vs 8.56%, p = 0,011). The prevalence of EBV and HHV-6 infections was almost similar in HAART-naive and HAART-experienced patients. The present study provides information on the prevalence of EBV and HHV-6 subtypes in people living with HIV-1 in Burkina Faso. The study also suggests that HAART treatment has no effect on infection with these opportunistic viruses in people living with HIV-1.
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15
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Epstein-Barr virus microRNAs reduce immune surveillance by virus-specific CD8+ T cells. Proc Natl Acad Sci U S A 2016; 113:E6467-E6475. [PMID: 27698133 DOI: 10.1073/pnas.1605884113] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Infection with Epstein-Barr virus (EBV) affects most humans worldwide and persists life-long in the presence of robust virus-specific T-cell responses. In both immunocompromised and some immunocompetent people, EBV causes several cancers and lymphoproliferative diseases. EBV transforms B cells in vitro and encodes at least 44 microRNAs (miRNAs), most of which are expressed in EBV-transformed B cells, but their functions are largely unknown. Recently, we showed that EBV miRNAs inhibit CD4+ T-cell responses to infected B cells by targeting IL-12, MHC class II, and lysosomal proteases. Here we investigated whether EBV miRNAs also counteract surveillance by CD8+ T cells. We have found that EBV miRNAs strongly inhibit recognition and killing of infected B cells by EBV-specific CD8+ T cells through multiple mechanisms. EBV miRNAs directly target the peptide transporter subunit TAP2 and reduce levels of the TAP1 subunit, MHC class I molecules, and EBNA1, a protein expressed in most forms of EBV latency and a target of EBV-specific CD8+ T cells. Moreover, miRNA-mediated down-regulation of the cytokine IL-12 decreases the recognition of infected cells by EBV-specific CD8+ T cells. Thus, EBV miRNAs use multiple, distinct pathways, allowing the virus to evade surveillance not only by CD4+ but also by antiviral CD8+ T cells.
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16
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Peckham-Gregory EC, Thapa DR, Martinson J, Duggal P, Penugonda S, Bream JH, Chang PY, Dandekar S, Chang SC, Detels R, Martínez-Maza O, Zhang ZF, Hussain SK. MicroRNA-related polymorphisms and non-Hodgkin lymphoma susceptibility in the Multicenter AIDS Cohort Study. Cancer Epidemiol 2016; 45:47-57. [PMID: 27701053 DOI: 10.1016/j.canep.2016.09.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 09/12/2016] [Accepted: 09/19/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND MicroRNAs, small non-coding RNAs involved in gene regulation, are implicated in lymphomagenesis. We evaluated whether genetic variations in microRNA coding regions, binding sites, or biogenesis genes (collectively referred to as miRNA-SNPs) were associated with risk of AIDS-associated non-Hodgkin lymphoma (AIDS-NHL), and serum levels of four lymphoma-related microRNAs. METHODS Twenty-five miRNA-SNPs were genotyped in 180 AIDS-NHL cases and 529 HIV-infected matched controls from the Multicenter AIDS Cohort Study (MACS), and real-time polymerase chain reaction was used to quantify serum microRNA levels. Adjusted odds ratios (ORs) estimated using conditional logistic regression evaluated associations between miRNA-SNPs and AIDS-NHL risk. A semi-Bayes shrinkage approach was employed to reduce likelihood of false-positive associations. Adjusted mean ratios (MR) calculated using linear regression assessed associations between miRNA-SNPs and serum microRNA levels. RESULTS DDX20 rs197412, a non-synonymous miRNA biogenesis gene SNP, was associated with AIDS-NHL risk (OR=1.34 per minor allele; 95% CI: 1.02-1.75), and higher miRNA-222 serum levels nearing statistical significance (MR=1.21 per minor allele; 95% CI: 0.98-1.49). MiRNA-196a2 rs11614913 was associated with decreased central nervous system (CNS) AIDS-NHL (CT vs. CC OR=0.52; 95% CI: 0.27-0.99). The minor allele of HIF1A rs2057482, which creates a miRNA-196a2 binding site, was associated with systemic AIDS-NHL risk (OR=1.73 per minor allele; 95% CI: 1.12-2.67), and decreased CNS AIDS-NHL risk (OR=0.49 per minor allele; 95% CI: 0.25-0.94). CONCLUSIONS This study suggests that a few miRNA-SNPs are associated with AIDS-NHL risk and may modulate miRNA expression. These results support a role for miRNA in AIDS-NHL and may highlight pathways to be targeted for risk stratification or therapeutics.
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Affiliation(s)
- Erin C Peckham-Gregory
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Box 951772, 71-267 CHS, Los Angeles, CA 90095-1772, USA.
| | - Dharma R Thapa
- Departments of Obstetrics and Gynecology, and Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, UCLA, Box 951740, 153 BSRB, Los Angeles, CA 90095-1740, USA
| | - Jeremy Martinson
- Department of Infectious Disease and Microbiology, Graduate School of Public Health, University of Pittsburgh, 403 Parran Hall, 130 DeSoto Street, Pittsburgh, PA 15261, USA
| | - Priya Duggal
- Department of Epidemiology, Bloomberg School of Public Health, Johns Hopkins University, 615 North Wolfe Street, Room E6539, Baltimore, MD 21205, USA
| | - Sudhir Penugonda
- Division of Infectious Diseases, Feinberg School of Medicine, Northwestern University, 645 North Michigan Avenue, Suite 900, Chicago, IL 60611, USA
| | - Jay H Bream
- Department of Molecular Microbiology and Immunology, Bloomberg School of Public Health, Johns Hopkins University, 615 North Wolfe Street, Room E5624, Baltimore, MD 21205, USA
| | - Po-Yin Chang
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Box 951772, 71-267 CHS, Los Angeles, CA 90095-1772, USA
| | - Sugandha Dandekar
- The UCLA Genotyping and Sequencing Core, Department of Human Genetics, David Geffen School of Medicine, UCLA, CHS 36-125, 650 Charles E Young Drive South, Los Angeles, CA 90095, USA
| | - Shen-Chih Chang
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Box 951772, 71-267 CHS, Los Angeles, CA 90095-1772, USA
| | - Roger Detels
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Box 951772, 71-267 CHS, Los Angeles, CA 90095-1772, USA
| | - Otoniel Martínez-Maza
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Box 951772, 71-267 CHS, Los Angeles, CA 90095-1772, USA; Departments of Obstetrics and Gynecology, and Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine, UCLA, Box 951740, 153 BSRB, Los Angeles, CA 90095-1740, USA; Jonsson Comprehensive Cancer Center, UCLA, Box 951740, 153 BSRB, Los Angeles, CA 90095-1740, USA; UCLA AIDS Institute, UCLA, Box 951740, 153 BSRB, Los Angeles, CA 90095-1740, USA
| | - Zuo-Feng Zhang
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Box 951772, 71-267 CHS, Los Angeles, CA 90095-1772, USA
| | - Shehnaz K Hussain
- Department of Epidemiology, Fielding School of Public Health, University of California, Los Angeles (UCLA), Box 951772, 71-267 CHS, Los Angeles, CA 90095-1772, USA; Department of Medicine and Samuel Oschin Comprehensive Cancer Center, Cedars-Sinai Medical Center, 8700 Beverly Blvd, West Hollywood, CA 90048, USA
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17
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Traore L, Tao I, Bisseye C, Diarra B, Compaore TR, Nebie Y, Assih M, Ouedraogo A, Zohoncon T, Djigma F, Ouermi D, Barro N, Sanou M, Ouedraogo RT, Simpore J. Molecular diagnostic of cytomegalovirus, Epstein Barr virus and Herpes virus 6 infections among blood donors by multiplex real-time PCR in Ouagadougou, Burkina Faso. Pan Afr Med J 2016; 24:298. [PMID: 28154653 PMCID: PMC5267872 DOI: 10.11604/pamj.2016.24.298.6578] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 07/15/2016] [Indexed: 12/21/2022] Open
Abstract
Introduction In most developing countries, Cytomegalovirus (CMV), Epstein Barr virus (EBV) and Herpes virus 6 (HHV-6) are not diagnosed in blood donors. The aim of this study is to determine the prevalence of these viruses in blood donors from the city of Ouagadougou, Burkina Faso. Methods The study included 198 blood donors of the Regional Blood Transfusion Centre of Ouagadougou. Multiplex real time PCR was used to diagnose the three viruses. Statistical analysis was performed with the software EpiInfo version 6 and SPSS version 17. P values ≤ 0.05 were considered significant. Results Of 198 samples tested, 18 (9.1%) were positive to at least one of the three viruses. In fact, 10 (5.1%) were positive for EBV, 10 (5.1%) positive for CMV and 12 (6.1%) positive for HHV-6. Viral infections were higher in women than in men, EBV (8,6% versus 4.3%), CMV (8.6% versus 3.7%) and HHV-6 (11.4% versus 4.9%). EBV / CMV / HHV-6 co-infection was found in 3.5% (7/198) of blood donors. Conclusion The prevalence recorded in this study is low compared to those found in previous studies from the sub-region among blood donors. The molecular diagnostic test used in our study could explain the differences with previous studies.
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Affiliation(s)
- Lassina Traore
- Biomolecular Research Center Pietro Annigoni Labiogene, UFR / SVT, University of Ouagadougou BP 364 Ouagadougou, Burkina Faso
| | - Issoufou Tao
- Biomolecular Research Center Pietro Annigoni Labiogene, UFR / SVT, University of Ouagadougou BP 364 Ouagadougou, Burkina Faso
| | - Cyrille Bisseye
- Biomolecular Research Center Pietro Annigoni Labiogene, UFR / SVT, University of Ouagadougou BP 364 Ouagadougou, Burkina Faso; Laboratory of Molecular and Cellular Biology, University of Sciences and Techniques of Masuku, P 943 Franceville, Gabon
| | - Birama Diarra
- Biomolecular Research Center Pietro Annigoni Labiogene, UFR / SVT, University of Ouagadougou BP 364 Ouagadougou, Burkina Faso
| | - Tegwindé Rebeca Compaore
- Biomolecular Research Center Pietro Annigoni Labiogene, UFR / SVT, University of Ouagadougou BP 364 Ouagadougou, Burkina Faso
| | - Yacouba Nebie
- Molecular Biology, Epidemiology and Monitoring of Communicable of Bacteria and Viruses Through Food, UFR / SVT, University of Ouagadougou, Burkina Faso
| | - Maleki Assih
- Biomolecular Research Center Pietro Annigoni Labiogene, UFR / SVT, University of Ouagadougou BP 364 Ouagadougou, Burkina Faso
| | - Alice Ouedraogo
- Biomolecular Research Center Pietro Annigoni Labiogene, UFR / SVT, University of Ouagadougou BP 364 Ouagadougou, Burkina Faso
| | - Theodora Zohoncon
- Biomolecular Research Center Pietro Annigoni Labiogene, UFR / SVT, University of Ouagadougou BP 364 Ouagadougou, Burkina Faso
| | - Florencia Djigma
- Biomolecular Research Center Pietro Annigoni Labiogene, UFR / SVT, University of Ouagadougou BP 364 Ouagadougou, Burkina Faso
| | - Djénéba Ouermi
- Biomolecular Research Center Pietro Annigoni Labiogene, UFR / SVT, University of Ouagadougou BP 364 Ouagadougou, Burkina Faso
| | - Nicolas Barro
- Molecular Biology, Epidemiology and Monitoring of Communicable of Bacteria and Viruses Through Food, UFR / SVT, University of Ouagadougou, Burkina Faso
| | - Mahamoudou Sanou
- Molecular Biology, Epidemiology and Monitoring of Communicable of Bacteria and Viruses Through Food, UFR / SVT, University of Ouagadougou, Burkina Faso
| | - Rasmata Traore Ouedraogo
- Molecular Biology, Epidemiology and Monitoring of Communicable of Bacteria and Viruses Through Food, UFR / SVT, University of Ouagadougou, Burkina Faso
| | - Jacques Simpore
- Biomolecular Research Center Pietro Annigoni Labiogene, UFR / SVT, University of Ouagadougou BP 364 Ouagadougou, Burkina Faso
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18
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Cárdenas D, Vélez G, Orfao A, Herrera MV, Solano J, Olaya M, Uribe AM, Saavedra C, Duarte M, Rodríguez M, López M, Fiorentino S, Quijano S. Epstein-Barr virus-specific CD8(+) T lymphocytes from diffuse large B cell lymphoma patients are functionally impaired. Clin Exp Immunol 2015; 182:173-83. [PMID: 26174440 PMCID: PMC4608507 DOI: 10.1111/cei.12682] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2015] [Indexed: 12/13/2022] Open
Abstract
Epstein-Barr virus (EBV) is a persistent virus with oncogenic capacity that has been implicated in the development of aggressive B cell lymphomas, primarily in immunosuppressed individuals, although it can be present in immunocompetent individuals. Changes in the function and clonal diversity of T lymphocytes might be implied by viral persistence and lymphoma development. The aim of the present study was to evaluate the frequency, phenotype, function and clonotypical distribution of EBV-specific T cells after peripheral blood stimulation with a virus lysate in newly diagnosed patients with diffuse large B cell lymphoma (DLBCL) aged more than 50 years without prior histories of clinical immunosuppression compared with healthy controls. Our results showed impaired EBV-specific immune responses among DLBCL patients that were associated primarily with decreased numbers of central and effector memory CD8(+) T lymphocytes. In contrast to healthy controls, only a minority of the patients showed CD4(+)/tumour necrosis factor (TNF)-α(+) T cells expressing T cell receptor (TCR)-Vβ17 and CD8(+)/TNF-α(+) T cells with TCR-Vβ5·2, Vβ9 and Vβ18 in response to EBV. Notably, the production of TNF-α was undetectable among TCR-Vβ5·3(+), Vβ11(+), Vβ12(+), Vβ16(+) and Vβ23(+) CD8(+) T cells. In addition, we observed decreased numbers of CD4(+)/TNF-α(+) and CD8(+)/TNF-α(+), CD8(+)/interleukin (IL)-2(+) and CD8(+)/TNF-α(+)/IL-2(+) T lymphocytes in the absence of T cells capable of producing TNF-α, IL-2 and IFN-γ after EBV stimulation simultaneously. Moreover, DLBCL patients displayed higher IL-10 levels both under baseline conditions and after EBV stimulation. These findings were also observed in patients with positive EBV viral loads. Prospective studies including a large number of patients are needed to confirm these findings.
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MESH Headings
- Aged
- Aged, 80 and over
- CD4-Positive T-Lymphocytes/immunology
- CD4-Positive T-Lymphocytes/metabolism
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- CD8-Positive T-Lymphocytes/virology
- Epstein-Barr Virus Infections/blood
- Epstein-Barr Virus Infections/immunology
- Epstein-Barr Virus Infections/virology
- Female
- Flow Cytometry
- Herpesvirus 4, Human/immunology
- Herpesvirus 4, Human/physiology
- Host-Pathogen Interactions/immunology
- Humans
- Interferon-gamma/immunology
- Interferon-gamma/metabolism
- Interleukin-10/immunology
- Interleukin-10/metabolism
- Interleukin-2/immunology
- Interleukin-2/metabolism
- Lymphocyte Count
- Lymphoma, Large B-Cell, Diffuse/blood
- Lymphoma, Large B-Cell, Diffuse/immunology
- Lymphoma, Large B-Cell, Diffuse/virology
- Male
- Middle Aged
- Receptors, Antigen, T-Cell, alpha-beta/immunology
- Receptors, Antigen, T-Cell, alpha-beta/metabolism
- Tumor Necrosis Factor-alpha/immunology
- Tumor Necrosis Factor-alpha/metabolism
- Viral Load/immunology
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Affiliation(s)
- D Cárdenas
- Grupo De Inmunobiología Y Biología Celular Departamento De Microbiología Facultad De Ciencias Pontificia Universidad JaverianaBogotá, Colombia
| | - G Vélez
- Grupo De Inmunobiología Y Biología Celular Departamento De Microbiología Facultad De Ciencias Pontificia Universidad JaverianaBogotá, Colombia
| | - A Orfao
- Servicio General De Citometría Y Departamento De Medicina, Centro De Investigación Del Cáncer (Instituto De Biología Molecular Y Celular Del Cáncer and IBSAL; CSIC-USAL), Universidad De SalamancaSalamanca, España
| | - M V Herrera
- Servicio De Hematología Hospital Universitario San Ignacio-Centro De Oncología Javeriano
| | - J Solano
- Servicio De Hematología Hospital Universitario San Ignacio-Centro De Oncología Javeriano
| | - M Olaya
- Departamento de Patología, Pontificia Universidad Javeriana, Hospital Universitario San Ignacio
| | - A M Uribe
- Departamento de Patología, Pontificia Universidad Javeriana, Hospital Universitario San Ignacio
| | - C Saavedra
- Grupo De Patología Fundación Santa Fe De Bogotá
| | - M Duarte
- Servicio De Hematología Fundación Santa Fe De BogotáBogotá, Colombia
| | - M Rodríguez
- Servicio De Hematología Fundación Santa Fe De BogotáBogotá, Colombia
| | - M López
- Fundación Cardiovascular De ColombiaFloridablanca, Colombia
| | - S Fiorentino
- Grupo De Inmunobiología Y Biología Celular Departamento De Microbiología Facultad De Ciencias Pontificia Universidad JaverianaBogotá, Colombia
| | - S Quijano
- Grupo De Inmunobiología Y Biología Celular Departamento De Microbiología Facultad De Ciencias Pontificia Universidad JaverianaBogotá, Colombia
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Epeldegui M, Lee JY, Martínez AC, Widney DP, Magpantay LI, Regidor D, Mitsuyasu R, Sparano JA, Ambinder RF, Martínez-Maza O. Predictive Value of Cytokines and Immune Activation Biomarkers in AIDS-Related Non-Hodgkin Lymphoma Treated with Rituximab plus Infusional EPOCH (AMC-034 trial). Clin Cancer Res 2015; 22:328-36. [PMID: 26384320 DOI: 10.1158/1078-0432.ccr-14-0466] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 08/31/2015] [Indexed: 11/16/2022]
Abstract
PURPOSE The aims of this study were to determine whether pretreatment plasma levels of cytokines and immune activation-associated molecules changed following treatment for AIDS-NHL with rituximab plus infusional EPOCH, and to determine whether pretreatment levels of these molecules were associated with response to treatment and/or survival. EXPERIMENTAL DESIGN We quantified plasma levels of B-cell activation-associated molecules (sCD27, sCD30, and sCD23) and cytokines (IL6, IL10, and CXCL13) before and after the initiation of treatment in persons with AIDS-NHL (n = 69) in the AIDS Malignancies Consortium (AMC) 034 study, which evaluated treatment of AIDS-NHL with EPOCH chemotherapy and rituximab. RESULTS Treatment resulted in decreased plasma levels of some of these molecules (CXCL13, sCD27, and sCD30), with decreased levels persisting for one year following the completion of treatment. Lower levels of CXCL13 before treatment were associated with complete responses following lymphoma therapy. Elevated levels of IL6 pretreatment were associated with decreased overall survival, whereas higher IL10 levels were associated with shorter progression-free survival (PFS), in multivariate analyses. Furthermore, patients with CXCL13 or IL6 levels higher than the median levels for the NHL group, as well as those who had detectable IL10, had lower overall survival and PFS, in Kaplan-Meier analyses. CONCLUSIONS These results indicate that CXCL13, IL6, and IL10 have significant potential as prognostic biomarkers for AIDS-NHL.
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Affiliation(s)
- Marta Epeldegui
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California. Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, California. UCLA AIDS Institute, Los Angeles, California. Jonsson Comprehensive Cancer Center at UCLA, Los Angeles, California
| | - Jeannette Y Lee
- Department of Biostatistics, College of Medicine, University of Arkansas, Little Rock, Arizona
| | - Anna C Martínez
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Daniel P Widney
- Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, California. UCLA AIDS Institute, Los Angeles, California
| | - Larry I Magpantay
- Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, California. UCLA AIDS Institute, Los Angeles, California. Jonsson Comprehensive Cancer Center at UCLA, Los Angeles, California
| | - Deborah Regidor
- UCLA AIDS Institute, Los Angeles, California. Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California
| | - Ronald Mitsuyasu
- UCLA AIDS Institute, Los Angeles, California. Jonsson Comprehensive Cancer Center at UCLA, Los Angeles, California. Department of Biostatistics, College of Medicine, University of Arkansas, Little Rock, Arizona
| | - Joseph A Sparano
- Division of Oncology, Department of Medicine, Albert Einstein College of Medicine, Bronx, New York
| | - Richard F Ambinder
- Division of Hematologic Malignancies, Johns Hopkins Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University, Baltimore, Maryland
| | - Otoniel Martínez-Maza
- Department of Microbiology, Immunology and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California. Department of Obstetrics and Gynecology, David Geffen School of Medicine at UCLA, Los Angeles, California. UCLA AIDS Institute, Los Angeles, California. Jonsson Comprehensive Cancer Center at UCLA, Los Angeles, California. Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California.
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20
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Ferraz da Silva AP, Giron LB, Ramos da Silva S, Naime Barbosa A, Almeida RAMDB, Elgui de Oliveira D. Human gammaherpesviruses viraemia in HIV infected patients. J Clin Pathol 2015; 68:726-32. [PMID: 25979989 DOI: 10.1136/jclinpath-2014-202840] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 04/26/2015] [Indexed: 01/08/2023]
Abstract
BACKGROUND The Epstein-Barr virus (EBV) and Kaposi's sarcoma associated herpesvirus (KSHV) are consistently associated with lymphoproliferative diseases and cancers in humans, notably in patients with HIV. AIMS Our aim was to evaluate whether EBV and/or KSHV viral loads regularly assessed in peripheral blood mononuclear cells (PBMC) correlate with clinical or laboratorial parameters retrieved for patients living with HIV. METHODS This was a longitudinal study with a cohort of 157 HIV positive patients attending an academic HIV outpatient clinic in São Paulo State, Brazil. For each patient, up to four blood samples were collected over a 1 year clinical follow-up: on enrolment into the study, and after 4, 8 and 12 months. Total DNA was extracted from PBMC, and EBV and KSHV viral loads were assessed by real time quantitative PCR. RESULTS Higher viral loads for EBV were significantly associated with high HIV viraemia, a greater number of circulating T CD8+ cells and lack of virological response to the antiretroviral treatment. KSHV viral load was undetectable in virtually all samples. CONCLUSIONS EBV viral load in PBMC correlated with the number of circulating T CD8+ lymphocytes and the response to the antiretroviral therapy in HIV infected patients. In contrast, KSHV was undetectable in PBMC, presumably an effect of the antiretroviral treatment. Therefore, either KSHV infection in the population studied was absent or viral load in PBMC was beyond the analytical limit of the assay.
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Affiliation(s)
- Ana Paula Ferraz da Silva
- Pathology Department at Botucatu Medical School, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Leila Bertoni Giron
- Pathology Department at Botucatu Medical School, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Suzane Ramos da Silva
- Pathology Department at Botucatu Medical School, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | - Alexandre Naime Barbosa
- Tropical Diseases and Diagnostic Imaging Department at Botucatu Medical School, São Paulo State University (UNESP), Botucatu, SP, Brazil
| | | | - Deilson Elgui de Oliveira
- Pathology Department at Botucatu Medical School, São Paulo State University (UNESP), Botucatu, SP, Brazil Biotechnology Institute (IBTEC), São Paulo State University (UNESP), Botucatu, SP, Brazil
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21
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Bollard CM, Barrett AJ. Cytotoxic T lymphocytes for leukemia and lymphoma. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2014; 2014:565-569. [PMID: 25696912 DOI: 10.1182/asheducation-2014.1.565] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This chapter focuses on the recent advances in adoptive T-cell immunotherapies, not only for patients after hematopoietic stem cell transplantation, but also in the autologous setting using T cells early in the disease process for the treatment of the highest-risk patients with leukemias and lymphomas. The particular emphasis is to highlight the role of T-cell therapies for hematologic malignancies using a non-gene-transfer approach to direct specificity, including the clinical use of T-cell therapies for EBV-associated lymphomas and strategies for targeting nonviral lymphoma- and leukemia-associated antigens.
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Affiliation(s)
- Catherine M Bollard
- Children's National Health System and The George Washington University, Washington, DC; and
| | - A John Barrett
- National Heart, Lung, and Blood Institute, National Institutes for Health, Bethesda, MD
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Tanaka PY, Ohshima K, Matsuoka M, Sabino EC, Ferreira SC, Nishya AS, de Oliveira Costa R, Calore EE, Perez NM, Pereira J. Epstein-Barr Viral Load is Associated to Response in AIDS-Related Lymphomas. Indian J Hematol Blood Transfus 2014; 30:191-4. [PMID: 25114406 DOI: 10.1007/s12288-014-0345-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2013] [Accepted: 01/22/2014] [Indexed: 11/28/2022] Open
Abstract
AIDS-related lymphoma (ARL) development is associated to immunodeficiency state with proliferation of B-cells driven by HIV itself and EBV infection. However, Epstein-Barr DNA is not detected in malignant cells of all ARL subtypes. A prospective and controlled study to analyze EBV viral load (VL) in plasma and peripheral blood mononuclear cells (PBMC) of ARL patients was performed to analyze if Epstein-Barr VL could be related to response in these patients. Fifteen patients with ARL were included in this study with measurement of EBV VL at three different periods of time: at lymphoma diagnosis, upon completion of chemotherapy, and 3 months after. Two control groups composed by HIV-negative and HIV-positive patients were also evaluated for EBV VL comparison. In situ hybridization for EBER was performed on diagnostic samples of all ARL patients. Median EBV VL in PBMC and plasma had a significant decrease (p = 0.022 and p = 0.003, respectively) after ARL treatment. EBER was positive in 7 (46.7 %) cases. Median EBV VL in PBMC before lymphoma treatment in patients positive for EBER was significantly higher compared to EBER negative cases (p = 0.041). Reduction of EBV viral load during treatment of lymphoma could be predictive of response. EBER expression was associated to advanced stages of disease and worse immune status. Our study suggests that measurement of EBV VL during ARL treatment could be used as a marker for response, but further studies are needed to validate this association.
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Affiliation(s)
- Paula Yurie Tanaka
- Faculdade de Medicina - Programa de Ciências Médicas, Universidade de São Paulo, Av. Dr. Arnaldo, 455, São Paulo, Brazil
| | - Kouichi Ohshima
- Department of Pathology, School of Medicine, Kurume University, 67 Asahi-machi, Kurume-shi, Fukuoka-ken Japan
| | - Masao Matsuoka
- Institute for Virus Research, Kyoto University, 53 Asahi-machi, Kurume-shi, Fukuoka-ken Japan
| | - Ester Cerdeira Sabino
- Laboratório de biologia molecular -Fundação pró-sangue, Av. Dr. Enéas de Carvalho Aguiar, 155, São Paulo, Brazil
| | - Suzete Cleusa Ferreira
- Laboratório de biologia molecular -Fundação pró-sangue, Av. Dr. Enéas de Carvalho Aguiar, 155, São Paulo, Brazil
| | - Anna Shoko Nishya
- Laboratório de biologia molecular -Fundação pró-sangue, Av. Dr. Enéas de Carvalho Aguiar, 155, São Paulo, Brazil
| | | | - Edenilson Eduardo Calore
- Pathology Section - Instituto de Infectologia Emílio Ribas, Av. Dr. Arnaldo, 165, São Paulo, Brazil
| | - Nilda Maria Perez
- Pathology Section - Instituto de Infectologia Emílio Ribas, Av. Dr. Arnaldo, 165, São Paulo, Brazil
| | - Juliana Pereira
- Faculdade de Medicina - Programa de Ciências Médicas, Universidade de São Paulo, Av. Dr. Arnaldo, 455, São Paulo, Brazil ; Instituto do Câncer do Estado de São Paulo, Av. Dr. Arnaldo, 251, São Paulo, Brazil ; Laboratório de Imunopatologia, Prédio de Ambulatórios do Hospital das Clinicas, Av. Dr. Enéas de Carvalho Aguiar, 255, 1º.andar, bloco 12 sala 61, Cep: 05403 - 001, São Paulo, Brazil
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Faller EM, McVey MJ, MacPherson PA. IL-7 receptor recovery on CD8 T-cells isolated from HIV+ patients is inhibited by the HIV Tat protein. PLoS One 2014; 9:e102677. [PMID: 25033393 PMCID: PMC4102547 DOI: 10.1371/journal.pone.0102677] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Accepted: 06/23/2014] [Indexed: 01/11/2023] Open
Abstract
Expression of the IL-7 receptor α-chain (CD127) is decreased on CD8 T-cells in HIV infected patients and partially recovers in those receiving antiretroviral therapy with sustained viral suppression. We have shown that soluble HIV Tat protein down regulates CD127 expression on CD8 T-cells isolated from healthy HIV-negative individuals. Tat is taken up by CD8 T-cells via endocytosis, exits the endosome and then translocates to the inner leaflet of the cell membrane where it binds to the cytoplasmic tail of CD127 inducing receptor internalization and degradation by the proteasome. This down regulation of CD127 by Tat results in impaired CD8 T-cell function. Interestingly, suppression of CD127 by Tat is reversible and requires the continual presence of Tat in the culture media. We thus questioned whether the low IL-7 receptor expression evident on CD8 T-cells in HIV+ patients was similarly reversible and if suppression of the receptor could be maintained ex vivo by Tat protein alone. We show here that when CD8 T-cells isolated from HIV+ patients are incubated alone in fresh medium, low CD127 expression on the cell surface recovers to normal levels. This recovery of CD127, however, is completely inhibited by the addition of HIV Tat protein to the culture media. This study then provides evidence that soluble factor(s) are responsible for low CD127 expression on circulating CD8 T-cells in HIV+ individuals and further implicates Tat in suppressing this receptor essential to CD8 T-cell proliferation and function.
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Affiliation(s)
- Elliott M. Faller
- Ottawa Hospital Research Institute, Chronic Disease, Ottawa, Ontario, Canada
- Faculty of Medicine, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Mark J. McVey
- Ottawa Hospital Research Institute, Chronic Disease, Ottawa, Ontario, Canada
| | - Paul A. MacPherson
- Ottawa Hospital Research Institute, Chronic Disease, Ottawa, Ontario, Canada
- Division of Infectious Diseases, Ottawa Hospital General Campus, Ottawa, Ontario, Canada
- Faculty of Medicine, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
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Brodie A, Tovia-Brodie O, Ofran Y. Large scale analysis of phenotype-pathway relationships based on GWAS results. PLoS One 2014; 9:e100887. [PMID: 25007247 PMCID: PMC4090199 DOI: 10.1371/journal.pone.0100887] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2013] [Accepted: 05/28/2014] [Indexed: 12/13/2022] Open
Abstract
The widely used pathway-based approach for interpreting Genome Wide Association Studies (GWAS), assumes that since function is executed through the interactions of multiple genes, different perturbations of the same pathway would result in a similar phenotype. This assumption, however, was not systemically assessed on a large scale. To determine whether SNPs associated with a given complex phenotype affect the same pathways more than expected by chance, we analyzed 368 phenotypes that were studied in >5000 GWAS. We found 216 significant phenotype-pathway associations between 70 of the phenotypes we analyzed and known pathways. We also report 391 strong phenotype-phenotype associations between phenotypes that are affected by the same pathways. While some of these associations confirm previously reported connections, others are new and could shed light on the molecular basis of these diseases. Our findings confirm that phenotype-associated SNPs cluster into pathways much more than expected by chance. However, this is true for <20% (70/368) of the phenotypes. Different types of phenotypes show markedly different tendencies: Virtually all autoimmune phenotypes show strong clustering of SNPs into pathways, while most cancers and metabolic conditions, and all electrophysiological phenotypes, could not be significantly associated with any pathway despite being significantly associated with a large number of SNPs. While this may be due to missing data, it may also suggest that these phenotypes could result only from perturbations of specific genes and not from other perturbations of the same pathway. Further analysis of pathway-associated versus gene-associated phenotypes is, therefore, needed in order to understand disease etiology and in order to promote better drug target selection.
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Affiliation(s)
- Aharon Brodie
- The Goodman Faculty of Life Sciences, Nanotechnology Building, Bar Ilan University, Ramat Gan, Israel
| | - Oholi Tovia-Brodie
- Department of Cardiology, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel
| | - Yanay Ofran
- The Goodman Faculty of Life Sciences, Nanotechnology Building, Bar Ilan University, Ramat Gan, Israel
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Ondondo BO. Fallen angels or risen apes? A tale of the intricate complexities of imbalanced immune responses in the pathogenesis and progression of immune-mediated and viral cancers. Front Immunol 2014; 5:90. [PMID: 24639678 PMCID: PMC3944202 DOI: 10.3389/fimmu.2014.00090] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Accepted: 02/20/2014] [Indexed: 12/13/2022] Open
Abstract
Excessive immune responses directed against foreign pathogens, self-antigens, or commensal microflora can cause cancer establishment and progression if the execution of tight immuno-regulatory mechanisms fails. On the other hand, induction of potent tumor antigen-specific immune responses together with stimulation of the innate immune system is a pre-requisite for effective anti-tumor immunity, and if suppressed by the strong immuno-regulatory mechanisms can lead to cancer progression. Therefore, it is crucial that the inevitable co-existence of these fundamental, yet conflicting roles of immune-regulatory cells is carefully streamlined as imbalances can be detrimental to the host. Infection with chronic persistent viruses is characterized by severe immune dysfunction resulting in T cell exhaustion and sometimes deletion of antigen-specific T cells. More often, this is due to increased immuno-regulatory processes, which are triggered to down-regulate immune responses and limit immunopathology. However, such heightened levels of immune disruption cause a concomitant loss of tumor immune-surveillance and create a permissive microenvironment for cancer establishment and progression, as demonstrated by increased incidences of cancer in immunosuppressed hosts. Paradoxically, while some cancers arise as a consequence of increased immuno-regulatory mechanisms that inhibit protective immune responses and impinge on tumor surveillance, other cancers arise due to impaired immuno-regulatory mechanisms and failure to limit pathogenic inflammatory responses. This intricate complexity, where immuno-regulatory cells can be beneficial in certain immune settings but detrimental in other settings underscores the need for carefully formulated interventions to equilibrate the balance between immuno-stimulatory and immuno-regulatory processes.
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26
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Bovenschen N, Spijkers SN, Wensink AC, Schellens IM, van Domselaar R, van Baarle D. Elevated granzyme M-expressing lymphocytes during cytomegalovirus latency and reactivation after allogeneic stem cell transplantation. Clin Immunol 2014; 150:1-11. [DOI: 10.1016/j.clim.2013.11.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 10/16/2013] [Accepted: 11/05/2013] [Indexed: 11/29/2022]
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Cloarec N, Faucher O, Bregigeon S, Brunet C, Tamalet C, Cano C, Poizot Martin I. Kaposi's sarcoma in a treated and well-controlled HIV infected patient: Discussion on the role of immunosenescence. HIV & AIDS REVIEW 2014. [DOI: 10.1016/j.hivar.2014.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Abstract
OBJECTIVE HIV infection is associated with cancer risk. This relationship has resulted in a growing cancer burden, especially in resource-limited countries where HIV is highly prevalent. Little is known, however, about how HIV affects cancer survival in these settings. We therefore investigated the role of HIV in cancer survival in Uganda. DESIGN Retrospective cohort (N = 802). METHODS Eligible cancer patients were residents of Kyadondo County, at least 18 years of age at cancer diagnosis, and diagnosed between 2003 and 2010 with one of the following: breast cancer, cervical cancer, non-Hodgkin's lymphoma, Hodgkin's lymphoma, or esophageal cancer. Patients were classified as HIV-infected at cancer diagnosis based on a documented positive HIV antibody test, medical history indicating HIV infection, or an HIV clinic referral letter. The primary outcome, vital status at 1 year following cancer diagnosis, was abstracted from the medical record or determined through linkage to the national hospice database. The risk of death during the year after cancer diagnosis was compared between cancer patients with and without evidence of HIV infection using Cox proportional hazards regression. RESULTS HIV-infected cancer patients in Uganda experienced a more than two-fold increased risk of death during the year following cancer diagnosis compared to HIV-uninfected cancer patients [hazard ratio 2.28; 95% confidence interval (CI) 1.61-3.23]. This association between HIV and 1-year cancer survival was observed for both cancers with (hazard ratio 1.56; 95% CI 1.04-2.34) and without (hazard ratio 2.68; 95% CI 1.20-5.99) an infectious cause. CONCLUSION This study demonstrates the role of HIV in cancer survival for both cancers with and without an infectious cause in a resource-limited, HIV-endemic setting.
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Ouedraogo DE, Bollore K, Viljoen J, Foulongne V, Reynes J, Cartron G, Vendrell JP, Van de Perre P, Tuaillon E. Comparison of EBV DNA viral load in whole blood, plasma, B-cells and B-cell culture supernatant. J Med Virol 2013; 86:851-6. [DOI: 10.1002/jmv.23858] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/30/2013] [Indexed: 11/12/2022]
Affiliation(s)
- David Eric Ouedraogo
- INSERM U1058; University of Montpellier 1; Montpellier France
- Montpellier Hospital Centre; Institute of Biotherapies Research; Laboratory of Human Rare Circulating Cells; Montpellier France
- Montpellier Hospital Centre; Department of Bacteriology and Virology; Paris France
| | - Karine Bollore
- INSERM U1058; University of Montpellier 1; Montpellier France
- Montpellier Hospital Centre; Institute of Biotherapies Research; Laboratory of Human Rare Circulating Cells; Montpellier France
- Montpellier Hospital Centre; Department of Bacteriology and Virology; Paris France
| | - Johannes Viljoen
- Africa Centre for Health and Population Studies; University of KwaZulu-Natal; Durban South Africa
| | - Vincent Foulongne
- INSERM U1058; University of Montpellier 1; Montpellier France
- Montpellier Hospital Centre; Department of Bacteriology and Virology; Paris France
| | - Jacques Reynes
- Montpellier Hospital Centre; Department of Tropical Infectous Diseases; Paris France
| | - Guillaume Cartron
- Montpellier Hospital Centre; Department of Hematology; Montpellier France
| | - Jean-Pierre Vendrell
- INSERM U1058; University of Montpellier 1; Montpellier France
- Montpellier Hospital Centre; Institute of Biotherapies Research; Laboratory of Human Rare Circulating Cells; Montpellier France
- Montpellier Hospital Centre; Department of Bacteriology and Virology; Paris France
| | - Philippe Van de Perre
- INSERM U1058; University of Montpellier 1; Montpellier France
- Montpellier Hospital Centre; Department of Bacteriology and Virology; Paris France
| | - Edouard Tuaillon
- INSERM U1058; University of Montpellier 1; Montpellier France
- Montpellier Hospital Centre; Institute of Biotherapies Research; Laboratory of Human Rare Circulating Cells; Montpellier France
- Montpellier Hospital Centre; Department of Bacteriology and Virology; Paris France
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Nicoli F, Finessi V, Sicurella M, Rizzotto L, Gallerani E, Destro F, Cafaro A, Marconi P, Caputo A, Ensoli B, Gavioli R. The HIV-1 Tat protein induces the activation of CD8+ T cells and affects in vivo the magnitude and kinetics of antiviral responses. PLoS One 2013; 8:e77746. [PMID: 24223723 PMCID: PMC3817196 DOI: 10.1371/journal.pone.0077746] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 09/06/2013] [Indexed: 11/19/2022] Open
Abstract
T cells are functionally compromised during HIV infection despite their increased activation and proliferation. Although T cell hyperactivation is one of the best predictive markers for disease progression, its causes are poorly understood. Anti-tat natural immunity as well as anti-tat antibodies induced by Tat immunization protect from progression to AIDS and reverse signs of immune activation in HIV-infected patients suggesting a role of Tat in T cell dysfunctionality. The Tat protein of HIV-1 is known to induce, in vitro, the activation of CD4(+) T lymphocytes, but its role on CD8(+) T cells and how these effects modulate, in vivo, the immune response to pathogens are not known. To characterize the role of Tat in T cell hyperactivation and dysfunction, we examined the effect of Tat on CD8(+) T cell responses and antiviral immunity in different ex vivo and in vivo models of antigenic stimulation, including HSV infection. We demonstrate for the first time that the presence of Tat during priming of CD8(+) T cells favors the activation of antigen-specific CTLs. Effector CD8(+) T cells generated in the presence of Tat undergo an enhanced and prolonged expansion that turns to a partial dysfunctionality at the peak of the response, and worsens HSV acute infection. Moreover, Tat favors the development of effector memory CD8(+) T cells and a transient loss of B cells, two hallmarks of the chronic immune activation observed in HIV-infected patients. Our data provide evidence that Tat affects CD8(+) T cell responses to co-pathogens and suggest that Tat may contribute to the CD8(+) T cell hyperactivation observed in HIV-infected individuals.
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Affiliation(s)
- Francesco Nicoli
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Valentina Finessi
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Mariaconcetta Sicurella
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Lara Rizzotto
- Department of Biomedical Sciences, Azienda Ospedaliero Universitaria Sant'Anna, Ferrara, Italy
| | - Eleonora Gallerani
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Federica Destro
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Aurelio Cafaro
- National AIDS Center, Istituto Superiore di Sanità, Rome, Italy
| | - Peggy Marconi
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Antonella Caputo
- Department of Molecular Medicine, University of Padova, Padova, Italy
| | - Barbara Ensoli
- National AIDS Center, Istituto Superiore di Sanità, Rome, Italy
| | - Riccardo Gavioli
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
- * E-mail:
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Gloghini A, Dolcetti R, Carbone A. Lymphomas occurring specifically in HIV-infected patients: from pathogenesis to pathology. Semin Cancer Biol 2013; 23:457-67. [PMID: 23999127 DOI: 10.1016/j.semcancer.2013.08.004] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2013] [Revised: 08/19/2013] [Accepted: 08/21/2013] [Indexed: 12/22/2022]
Abstract
Lymphomas that develop in HIV positive patients are predominantly aggressive B-cell malignancies. The most common HIV-associated lymphomas are Burkitt lymphoma (BL) and diffuse large B-cell lymphoma (DLBCL). Lymphomas that occur specifically in HIV positive patients include primary effusion lymphoma (PEL) and its solid variants, plasmablastic lymphoma of the oral cavity type and lymphoma associated with Kaposi sarcoma herpesvirus (KSHV)-related multicentric Castleman disease. These lymphomas, together with BL and immunoblastic lymphoma subtypes with plasmacytoid differentiation, carry Epstein-Barr virus (EBV) infection and display a phenotype related to plasma cells. Globally, EBV is identified in the neoplastic cells of approximately 40% of HIV-associated lymphomas, but the detection of EBV varies considerably with the site of presentation and the histological subtype. EBV infection occurs in 80-100% of primary central nervous system lymphomas and PELs, 80% of DLBCLs with immunoblastic-plasmacytoid features, and 30-50% of BL-plasmacytoid. KSHV is specifically associated with PEL, which usually occurs in a setting of profound immunosuppression. Current knowledge about HIV-associated lymphomas can be summarized as follows: (1) lymphomas specifically occurring in patients with HIV infection are closely linked to other viral diseases; (2) most of these lymphomas exhibit plasmablastic differentiation.
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Affiliation(s)
- Annunziata Gloghini
- Department of Diagnostic Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy.
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Curreli S, Krishnan S, Reitz M, Lunardi-Iskandar Y, Lafferty MK, Garzino-Demo A, Zella D, Gallo RC, Bryant J. B cell lymphoma in HIV transgenic mice. Retrovirology 2013; 10:92. [PMID: 23985023 PMCID: PMC3847158 DOI: 10.1186/1742-4690-10-92] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Accepted: 08/22/2013] [Indexed: 01/09/2023] Open
Abstract
Background Human Immunodeficiency Virus Type I (HIV-1) infection is associated with a high incidence of B-cell lymphomas. The role of HIV in these lymphomas is unclear and currently there are no valid in vivo models for better understanding HIV-related lymphomagenesis. Transgenic (Tg) 26 mice have a 7.4-kb pNL4-3 HIV-1 provirus lacking a 3.1-kb sequence encompassing parts of the gag-pol region. Approximately 15% of these HIV Tg mice spontaneously develop lymphoma with hallmark pre-diagnostic markers including skin lesions, diffuse lymphadenopathy and an increase in pro-inflammatory serum cytokines. Here we describe the phenotypic and molecular characteristics of the B cell leukemia/lymphoma in the Tg mice. Results The transformed B cell population consists of CD19+pre-BCR+CD127+CD43+CD93+ precursor B cells. The tumor cells are clonal and characterized by an increased expression of several cellular oncogenes. Expression of B cell-stimulatory cytokines IL-1β, IL-6, IL-10, IL-12p40, IL-13 and TNFα and HIV proteins p17, gp120 and nef were elevated in the Tg mice with lymphoma. Conclusions Increased expression of HIV proteins and the B-cell stimulatory factors is consistent with the interpretation that one or more of these factors play a role in lymphoma development. The lymphomas share many similarities with those occurring in HIV/AIDS+ patients and may provide a valuable model for understanding AIDS-related lymphomagenesis and elucidating the role played by HIV-1.
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Affiliation(s)
- Sabrina Curreli
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201, USA.
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Pivotal role of HIV and EBV replication in the long-term persistence of monoclonal gammopathy in patients on antiretroviral therapy. Blood 2013; 122:3030-3. [PMID: 23940281 DOI: 10.1182/blood-2012-12-470393] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A high prevalence of monoclonal gammopathy (MG) has been observed in HIV-infected patients. We explored the conditions associated with long-term persistence of serum monoclonal protein (M protein) in HIV-infected patients on antiretroviral therapy (ART). Of 21 patients with MG, M protein disappeared in 12 patients (58%) over 5 years of ART. Higher level of serum γ-globulin and higher percentages of circulating plasmablasts and plasma cells were observed in patients with persistent MG compared with patients with transient MG. MG persistence was associated with the cumulative time of detectable plasma HIV RNA after ART initiation, detection of Epstein-Barr virus (EBV) DNA in plasma, and a high level of EBV DNA in B cells. Poor control of HIV replication and detectable EBV replication in plasma were both associated with long-term MG persistence in patients on ART. In the case of viral control, MG associated with HIV infection is usually transient.
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Ahmed Rahim MM, Chrobak P, Priceputu E, Hanna Z, Jolicoeur P. Normal development and function but impaired memory phenotype of CD8+ T cells in transgenic mice expressing HIV-1 Nef in its natural target cells. Virology 2013; 438:84-97. [DOI: 10.1016/j.virol.2013.01.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2012] [Revised: 12/08/2012] [Accepted: 01/16/2013] [Indexed: 10/27/2022]
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Kamperschroer C, O'Donnell LM, Schneider PA, Li D, Roy M, Coskran TM, Kawabata TT. Measuring T-cell responses against LCV and CMV in cynomolgus macaques using ELISPOT: potential application to non-clinical testing of immunomodulatory therapeutics. J Immunotoxicol 2013; 11:35-43. [PMID: 23461640 DOI: 10.3109/1547691x.2013.766287] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
A number of immunomodulatory therapeutics increase the risk of disease associated with latent herpesviruses such as cytomegalovirus (CMV) and Epstein-Barr virus (EBV), a member of the lymphocryptovirus (LCV) family that infects humans. The diseases associated with loss of immunity to these viruses can have major impacts on patients as well as on the commercial viability of the immunomodulatory therapeutics. In an effort to develop non-clinical methods for measuring effects on anti-viral immunity, we have developed an interferon (IFN)-γ enzyme-linked immunosorbent spot (ELISPOT) assay to quantify the number of CMV or LCV-reactive T-cells in peripheral blood of cynomolgus macaques. After optimization of various parameters, the IFN-γ ELISPOT assay was characterized for specificity, intra-assay, monkey-to-monkey, and longitudinal variability and sensitivity to immunosuppression. The results show that nearly all animals have detectable responses against both CMV and LCV and responses were derived from T-cells specific to the virus of interest. Analyses of variability show assay reproducibility (≤23% CV), and that variability over time in anti-viral responses in individual animals (larger for LCV than for CMV) was ∼2-fold in most animals over a 3-month time period, which is predicted to allow for detection of drug-induced changes when using group sizes typical of non-clinical studies. In addition, the IFN-γ ELISPOT assay was capable of detecting decreases in the numbers of CMV and LCV reactive T-cells induced by immunosuppressive drugs in vitro. This assay may allow for non-clinical assessment of the effects of immunomodulatory therapeutics on anti-viral T-cell immunity in monkeys, and may help determine if therapeutics increase the risk of reactivating latent viral infections.
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Affiliation(s)
- Cris Kamperschroer
- Drug Safety Research and Development, Pfizer Global Research and Development , Pfizer, Inc., Groton, CT , USA
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Chao C, Silverberg MJ, Martínez-Maza O, Chi M, Abrams DI, Haque R, Zha HD, McGuire M, Xu L, Said J. Epstein-Barr virus infection and expression of B-cell oncogenic markers in HIV-related diffuse large B-cell Lymphoma. Clin Cancer Res 2012; 18:4702-12. [PMID: 22711707 PMCID: PMC3846529 DOI: 10.1158/1078-0432.ccr-11-3169] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
PURPOSE Epstein-Barr virus (EBV)-mediated lymphomagenesis in the setting of HIV infection has been widely accepted. However, little is known about how EBV impacts prognosis. We investigated the hypothesis that EBV infection is associated with expression of specific B-cell oncogenic markers in HIV-related diffuse large B-cell lymphoma (DLBCL) and examined the prognostic use of detecting EBV infection. EXPERIMENTAL DESIGN HIV-related DLBCL cases diagnosed between 1996 and 2007 within Kaiser Permanente California were identified. Immunohistochemical staining was used to analyze the expression of selected markers that are cell-cycle regulators, B-cell activators, and antiapoptotic proteins among others. EBV infection was determined by in situ hybridization of EBV RNA. Correlations between EBV and marker expression were examined using Spearman correlation coefficient. The prognostic use of EBV status was examined in multivariable Cox model adjusting for International Prognostic Index (IPI). Receiver-operating characteristics (ROC) analysis was used to evaluate improvement in model discrimination. RESULTS Seventy HIV-related DLBCL cases were included (31% EBV±). EBV+ tumor was associated with increased expression of BLIMP1 and CD30 and reduced expression of BCL6 and LMO2. EBV+ tumor was independently associated with elevated 2-year overall mortality [HR, 3.3; 95% confidence interval (CI), 1.6-6.6]. Area under the ROC curve showed improved model discrimination when incorporating tumor EBV status with IPI in the prediction model [0.65 vs. 0.74 (IPI only)]. CONCLUSION Our results suggest that EBV infection was associated with expression of several tumor markers that are involved in the NF-κB pathway and that detecting tumor EBV status may have prognostic use in HIV-related DLBCLs.
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MESH Headings
- Acquired Immunodeficiency Syndrome/complications
- Acquired Immunodeficiency Syndrome/metabolism
- Acquired Immunodeficiency Syndrome/pathology
- Adaptor Proteins, Signal Transducing/metabolism
- Apoptosis
- B7-1 Antigen/metabolism
- Cell Cycle Proteins/metabolism
- DNA-Binding Proteins/metabolism
- Epstein-Barr Virus Infections/complications
- Epstein-Barr Virus Infections/metabolism
- Epstein-Barr Virus Infections/pathology
- Follow-Up Studies
- Gene Expression Regulation, Neoplastic
- Herpesvirus 4, Human/isolation & purification
- Herpesvirus 4, Human/pathogenicity
- Humans
- In Situ Hybridization
- Kaplan-Meier Estimate
- Ki-1 Antigen/metabolism
- LIM Domain Proteins/metabolism
- Lymphoma, AIDS-Related/complications
- Lymphoma, AIDS-Related/metabolism
- Lymphoma, AIDS-Related/pathology
- Lymphoma, Large B-Cell, Diffuse/complications
- Lymphoma, Large B-Cell, Diffuse/metabolism
- Lymphoma, Large B-Cell, Diffuse/virology
- NF-kappa B/metabolism
- Positive Regulatory Domain I-Binding Factor 1
- Prognosis
- Proto-Oncogene Proteins/metabolism
- Proto-Oncogene Proteins c-bcl-6
- Repressor Proteins/metabolism
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Affiliation(s)
- Chun Chao
- Department of Research and Evaluation, Kaiser Permanente Southern California, 100 S. Los Robles Ave, 2nd Floor, Los Angeles, CA 91101, USA.
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Davies JK, Barbon CM, Voskertchian A, Nadler LM, Guinan EC. Ex Vivo Alloanergization with Belatacept: A Strategy to Selectively Modulate Alloresponses after Transplantation. Cell Transplant 2012; 21:2047-61. [DOI: 10.3727/096368912x637479] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Ex vivo alloanergization of human immune cells, via allostimulation in the presence of costimulatory blockade with either a combination of anti-B7.1 and anti-B7.2 antibodies or first-generation cytotoxic T-lymphocyte antigen 4-immunoglobulin (CTLA4-Ig), induces alloantigen-specific hyporesponsiveness and expands alloantigen-specific regulatory T cells (Treg). We have successfully used this approach in the clinical setting of haploidentical hematopoietic stem cell transplantation. Recently, the in vivo use of a new second-generation CTLA4-Ig, belatacept, has shown promise in controlling alloresponses after transplantation of both human kidneys and islet cells. We therefore compared the efficiency of first- and second-generation CTLA4-Ig in alloanergizing human peripheral blood mononuclear cells (PBMCs) and investigated whether ex vivo alloanergization with belatacept could be used to engineer an alloantigen-specific immunoregulatory population of autologous cells suitable for administration to recipients of cellular or solid organ transplant recipients. Alloanergization of HLA-mismatched human PBMCs with belatacept resulted in a greater reduction in subsequent alloresponses than alloanergization with first generation CTLA4-Ig. Moreover, subsequent ex vivo re-exposure of alloanergized cells to alloantigen in the absence of belatacept resulted in a significant expansion of Tregs with enhanced alloantigen-specific suppressive function. Alloanergized PBMCs retained functional Epstein-Barr virus (EBV)-specific T-cell responses, and expanded Tregs did not suppress EBV-specific proliferation of autologous cells. These results suggest that ex vivo alloanergization with belatacept provides a platform to engineer populations of recipient Treg with specificity for donor alloantigens but without nonspecific suppressive capacity. The potential advantages of such cells for solid organ transplantation include ( 1 ) reduction of the need for nonspecific immunosuppression, ( 2 ) retention of pathogen-specific immunity, and ( 3 ) control of graft rejection, if used as an intervention.
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Affiliation(s)
- Jeff K. Davies
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
- Brigham and Women's Hospital, Boston, MA, USA
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Christine M. Barbon
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Annie Voskertchian
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - Lee M. Nadler
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
- Brigham and Women's Hospital, Boston, MA, USA
| | - Eva C. Guinan
- Departments of Radiation Oncology and Pediatrics, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA, USA
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The Cancer-Associated Virus Landscape in HIV Patients with Oral Hairy Leukoplakia, Kaposi's Sarcoma, and Non-Hodgkin Lymphoma. AIDS Res Treat 2012; 2012:634523. [PMID: 22924124 PMCID: PMC3423820 DOI: 10.1155/2012/634523] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2012] [Revised: 06/13/2012] [Accepted: 07/01/2012] [Indexed: 12/25/2022] Open
Abstract
Although HIV-positive patients are at higher risk for developing a variety of infection-related cancers, the prevalence of infections with the seven known cancer-associated viruses has not been studied. Luciferase immunoprecipitation systems were used to evaluate antiviral antibodies in four 23-person groups: healthy blood donors and HIV-infected patients with oral hairy leukoplakia (OLP), Kaposi's sarcoma (KS), or non-Hodgkin lymphoma (NHL). Antibody profiling revealed that all HIV-positive individuals were strongly seropositive for anti-gp41 and antireverse transcriptase antibodies. However, anti-p24 HIV antibody levels were highly variable and some OLP and KS patients demonstrated weak or negative responses. Profiling two EBV antigens revealed no statistical difference in antibody levels among the three HIV-infected groups. A high frequency of KSHV infection was detected in HIV patients including 100% of KS, 78% of OLP, and 57% of NHL patients. Most HIV-infected subjects (84%) showed anti-HBV core antibodies, but only a few showed antibodies against HCV. MCV seropositivity was also common (94%) in the HIV-infected individuals and KS patients showed statistically higher antibody levels compared to the OLP and NHL patients. Overall, 68% of the HIV-infected patients showed seropositivity with at least four cancer-associated viruses. Antibody profiles against these and other infectious agents could be useful for enhancing the clinical management of HIV patients.
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Friis AMC, Akerlund B, Gyllensten K, Aleman A, Bratt G, Sandström E, Ernberg I. Epstein-Barr virus genome load is increased by therapeutic vaccination in HIV-l carriers, and further enhanced in patients with a history of symptomatic primary infection. Vaccine 2012; 30:6093-8. [PMID: 22863659 DOI: 10.1016/j.vaccine.2012.07.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2012] [Revised: 06/23/2012] [Accepted: 07/18/2012] [Indexed: 01/24/2023]
Abstract
OBJECTIVE Epstein-Barr virus (EBV) infection is an established risk factor for B-cell lymphomas in Human Immunodeficiency virus (HIV)-1 infected patients. A disturbed EBV-host relationship is seen in patient groups with a high risk for EBV-associated lymphomas. We have analysed this relationship by measuring EBV-DNA in the blood of HIV-1 carriers. METHOD EBV-DNA load in B-cells was monitored by PCR in non- or insufficiently antiretroviral treated and rgp160-vaccinated HIV-patients. RESULTS Both asymptomatic HIV-infected and AIDS-patients showed a 25-40-fold increase in the number of B cell associated EBV-DNA copies compared to healthy controls. Patients included in a vaccine trial with recombinant HIV gp160 showed a 5-fold increase of EBV load compared to non-immunised patients and a 50-fold increase compared to healthy controls. There was no difference whether they received vaccine or "placebo". Vaccinated patients with a history of symptomatic primary HIV-1 infection (PHI) had a 280-fold increase in median EBV load compared to healthy controls, thus suggesting a synergistic effect between the vaccination and PHI, which hypothetically could affect lymphoma risk. CONCLUSIONS We recommend analysis of EBV-load and long term follow up of lymphoma risk in all therapeutic HIV-1 vaccination trials.
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Affiliation(s)
- Anna M C Friis
- Department of Microbiology, Tumor and Cell Biology (MTC), Karolinska Institute, Box 280, SE-171 77, Stockholm, Sweden.
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Delbue S, Comar M, Ferrante P. Review on the relationship between human polyomaviruses-associated tumors and host immune system. Clin Dev Immunol 2012; 2012:542092. [PMID: 22489251 PMCID: PMC3318214 DOI: 10.1155/2012/542092] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Accepted: 01/11/2012] [Indexed: 02/05/2023]
Abstract
The polyomaviruses are small DNA viruses that can establish latency in the human host. The name polyomavirus is derived from the Greek roots poly-, which means "many," and -oma, which means "tumours." These viruses were originally isolated in mouse (mPyV) and in monkey (SV40). In 1971, the first human polyomaviruses BK and JC were isolated and subsequently demonstrated to be ubiquitous in the human population. To date, at least nine members of the Polyomaviridae family have been identified, some of them playing an etiological role in malignancies in immunosuppressed patients. Here, we describe the biology of human polyomaviruses, their nonmalignant and malignant potentials ability, and their relationship with the host immune response.
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Affiliation(s)
- Serena Delbue
- Laboratory of Transkìlational Research, Health Science Foundation Ettore Sansavini, Corso Garibaldi, 11-48022 Lugo, Italy.
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Adequate control of primary EBV infection and subsequent reactivations after cardiac transplantation in an EBV seronegative patient. Transpl Immunol 2012; 27:48-51. [PMID: 22342937 DOI: 10.1016/j.trim.2012.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2011] [Revised: 01/31/2012] [Accepted: 02/01/2012] [Indexed: 11/23/2022]
Abstract
EBV seronegative recipients of cardiac transplantation are at risk for development of post transplant lymphoproliferative disease following primary EBV infection due to the ongoing treatment with immunosuppressive drugs. Here we present detailed kinetics of the EBV-specific T-cell response following cardiac transplantation in an EBV seronegative recipient who developed a primary EBV infection 15weeks post transplantation and subsequent viral reactivations throughout follow up. The patient developed an EBV-specific CD8(+) T-cell response within 24days after first detection of the primary infection. Subsequently, an increased EBV-specific CD8(+) T-cell response developed upon viral reactivation, indicated by a threefold increase of EBV-specific CD8(+) T cells and increased IFNy production after stimulation with EBV-specific peptide pools. These data indicate that an EBV-specific T-cell response capable of adequate control of a primary EBV-infection and subsequent viral reactivations can develop in an EBV seronegative cardiac transplant recipient in the presence of severe immunosuppression.
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HIV-associated immune dysfunction and viral infection: role in the pathogenesis of AIDS-related lymphoma. Immunol Res 2011; 48:72-83. [PMID: 20717742 DOI: 10.1007/s12026-010-8168-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
HIV infection is associated with a much higher risk for the development of non-Hodgkin lymphoma (AIDS-NHL). The principal causes of lymphomagenesis in HIV-infected individuals are thought to be the loss of immune function seen in HIV infection, which results in the loss of immunoregulation of Epstein-Barr virus-infected B cells, as well as HIV infection-associated immune dysregulation, including chronic B-cell activation. In this review, we discuss recent reports that further support the importance of these factors, and we highlight emerging evidence of different mechanisms that potentially drive lymphomagenesis in HIV-infected individuals.
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Breen EC, Hussain SK, Magpantay L, Jacobson LP, Detels R, Rabkin CS, Kaslow RA, Variakojis D, Bream JH, Rinaldo CR, Ambinder RF, Martinez-Maza O. B-cell stimulatory cytokines and markers of immune activation are elevated several years prior to the diagnosis of systemic AIDS-associated non-Hodgkin B-cell lymphoma. Cancer Epidemiol Biomarkers Prev 2011; 20:1303-14. [PMID: 21527584 DOI: 10.1158/1055-9965.epi-11-0037] [Citation(s) in RCA: 106] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The risk of developing non-Hodgkin lymphoma (NHL) is greatly increased in HIV infection. The aim of this study was to determine whether elevated serum levels of molecules associated with B-cell activation precede the diagnosis of AIDS-associated NHL (AIDS-NHL). METHODS Serum levels of B-cell activation-associated molecules, interleukin (IL)6, IL10, soluble CD23 (sCD23), sCD27, sCD30, C-reactive protein (CRP), and immunoglobulin E were determined in 179 NHL cases and HIV+ controls in the Multicenter AIDS Cohort Study, collected at up to 3 time points per subject, 0 to 5 years prior to AIDS-NHL diagnosis. RESULTS Serum IL6, IL10, CRP, sCD23, sCD27, and sCD30 levels were all significantly elevated in the AIDS-NHL group, when compared with HIV+ controls or with AIDS controls, after adjusting for CD4 T-cell number. Elevated serum levels of B-cell activation-associated molecules were seen to be associated with the development of systemic [non-CNS (central nervous system)] NHL, but not with the development of primary CNS lymphoma. CONCLUSIONS Levels of certain B-cell stimulatory cytokines and molecules associated with immune activation are elevated for several years preceding the diagnosis of systemic AIDS-NHL. This observation is consistent with the hypothesis that chronic B-cell activation contributes to the development of these hematologic malignancies. IMPACT Marked differences in serum levels of several molecules are seen for several years prediagnosis in those who eventually develop AIDS-NHL. Some of these molecules may serve as candidate biomarkers and provide valuable information to better define the etiology of NHL.
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Affiliation(s)
- Elizabeth Crabb Breen
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-7076, USA.
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Huhn GD, Badri S, Vibhakar S, Tverdek F, Crank C, Lubelchek R, Max B, Simon D, Sha B, Adeyemi O, Herrera P, Tenorio A, Kessler H, Barker D. Early development of non-hodgkin lymphoma following initiation of newer class antiretroviral therapy among HIV-infected patients - implications for immune reconstitution. AIDS Res Ther 2010; 7:44. [PMID: 21156072 PMCID: PMC3022662 DOI: 10.1186/1742-6405-7-44] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2010] [Accepted: 12/14/2010] [Indexed: 12/19/2022] Open
Abstract
Background In the HAART era, the incidence of HIV-associated non-Hodgkin lymphoma (NHL) is decreasing. We describe cases of NHL among patients with multi-class antiretroviral resistance diagnosed rapidly after initiating newer-class antiretrovirals, and examine the immunologic and virologic factors associated with potential IRIS-mediated NHL. Methods During December 2006 to January 2008, eligible HIV-infected patients from two affiliated clinics accessed Expanded Access Program antiretrovirals of raltegravir, etravirine, and/or maraviroc with optimized background. A NHL case was defined as a pathologically-confirmed tissue diagnosis in a patient without prior NHL developing symptoms after starting newer-class antiretrovirals. Mean change in CD4 and log10 VL in NHL cases compared to controls was analyzed at week 12, a time point at which values were collected among all cases. Results Five cases occurred among 78 patients (mean incidence = 64.1/1000 patient-years). All cases received raltegravir and one received etravirine. Median symptom onset from newer-class antiretroviral initiation was 5 weeks. At baseline, the median CD4 and VL for NHL cases (n = 5) versus controls (n = 73) were 44 vs.117 cells/mm3 (p = 0.09) and 5.2 vs. 4.2 log10 (p = 0.06), respectively. The mean increase in CD4 at week 12 in NHL cases compared to controls was 13 (n = 5) vs. 74 (n = 50)(p = 0.284). Mean VL log10 reduction in NHL cases versus controls at week 12 was 2.79 (n = 5) vs. 1.94 (n = 50)(p = 0.045). Conclusions An unexpectedly high rate of NHL was detected among treatment-experienced patients achieving a high level of virologic response with newer-class antiretrovirals. We observed trends toward lower baseline CD4 and higher baseline VL in NHL cases, with a significantly greater decline in VL among cases by 12 weeks. HIV-related NHL can occur in the setting of immune reconstitution. Potential immunologic, virologic, and newer-class antiretroviral-specific factors associated with rapid development of NHL warrants further investigation.
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Plasma Epstein-Barr viral load measurement as a diagnostic marker of lymphoma in HIV-infected patients. Med Clin (Barc) 2010; 135:485-90. [DOI: 10.1016/j.medcli.2010.02.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2009] [Revised: 02/05/2010] [Accepted: 02/09/2010] [Indexed: 11/20/2022]
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Vendrame E, Martínez-Maza O. Assessment of pre-diagnosis biomarkers of immune activation and inflammation: insights on the etiology of lymphoma. J Proteome Res 2010; 10:113-9. [PMID: 20886858 DOI: 10.1021/pr100729z] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The DNA-modifying processes that are involved in B lymphocyte activation, somatic hypermutation (SHM), and IgH class switch recombination (CSR) have the potential to lead to genetic errors that lead to the genesis of B cell cancers, such as lymphoma. Given the potential contribution of these immune mechanisms to the development of cancer, assessment of the expression of cytokines, and other immune stimulatory molecules that drive B cell activation, prior to lymphoma diagnosis, may provide insights into the etiology of these cancers. Here, we review studies that have examined prediagnosis protein biomarkers for non-Hodgkin lymphoma (NHL), both AIDS-related NHL, as well as NHL seen in immunocompetent populations. Overall, these studies provide support for the notion that B cell hyper-activation is elevated preceding the appearance of AIDS-NHL, particularly those forms of AIDS-NHL that are not driven by EBV infection and that presumably arise from errors in IgH CSR and SHM. In more limited studies, it appears that dysregulation of cytokine production also precedes the diagnosis of NHL in HIV-negative persons. The availability of prediagnosis serum/plasma from cohort studies provides unique opportunities for proteomic approaches to identify novel prediagnosis etiologic biomarkers for NHL.
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Affiliation(s)
- Elena Vendrame
- Departments of Obstetrics & Gynecology and Microbiology, Immunology & Molecular Genetics, David Geffen School of Medicine at University of California Los Angeles, California, USA
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Faller EM, Sugden SM, McVey MJ, Kakal JA, MacPherson PA. Soluble HIV Tat Protein Removes the IL-7 Receptor α-Chain from the Surface of Resting CD8 T Cells and Targets It for Degradation. THE JOURNAL OF IMMUNOLOGY 2010; 185:2854-66. [DOI: 10.4049/jimmunol.0902207] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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48
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Chang CH, Hsu YH. Hyper-IgE Syndrome With Epstein-Barr Virus Associated Extranodal NK/T Cell Lymphoma of Skin. Kaohsiung J Med Sci 2010; 26:206-10. [DOI: 10.1016/s1607-551x(10)70030-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2009] [Accepted: 09/30/2009] [Indexed: 11/26/2022] Open
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Bibas M, Antinori A. EBV and HIV-Related Lymphoma. Mediterr J Hematol Infect Dis 2009; 1:e2009032. [PMID: 21416008 PMCID: PMC3033170 DOI: 10.4084/mjhid.2009.032] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Accepted: 12/27/2009] [Indexed: 11/18/2022] Open
Abstract
HIV-associated lymphoproliferative disorders represent a heterogeneous group of diseases, arising in the presence of HIV-associated immunodeficiency. The overall prevalence of HIV-associated lymphoma is significantly higher compared to that of the general population and it continues to be relevant even after the wide availability of highly active antiretroviral therapy (HAART) (1). Moreover, they still represent one of the most frequent cause of death in HIV-infected patients. Epstein-Barr virus (EBV), a γ-Herpesviruses, is involved in human lymphomagenesis, particularly in HIV immunocompromised patients. It has been largely implicated in the development of B-cell lymphoproliferative disorders as Burkitt lymphoma (BL), Hodgkin disease (HD), systemic non Hodgkin lymphoma (NHL), primary central nervous system lymphoma (PCNSL), nasopharyngeal carcinoma (NC). Virus-associated lymphomas are becoming of significant concern for the mortality of long-lived HIV immunocompromised patients, and therefore, research of advanced strategies for AIDS-related lymphomas is an important field in cancer chemotherapy. Detailed understanding of the EBV lifecycle and related cancers at the molecular level is required for novel strategies of molecular-targeted cancer chemotherapy The linkage of HIV-related lymphoma with EBV infection of the tumor clone has several pathogenetic, prognostic and possibly therapeutic implications which are reviewed herein.
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Affiliation(s)
- Michele Bibas
- Clinical Department, National Institute for Infectious Diseases “Lazzaro Spallanzani”, IRCCS, Rome, Italy
| | - Andrea Antinori
- Clinical Department, National Institute for Infectious Diseases “Lazzaro Spallanzani”, IRCCS, Rome, Italy
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Niller HH, Wolf H, Minarovits J. Regulation and dysregulation of Epstein–Barr virus latency: Implications for the development of autoimmune diseases. Autoimmunity 2009; 41:298-328. [DOI: 10.1080/08916930802024772] [Citation(s) in RCA: 120] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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