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Witte H, Künstner A, Gebauer N. Update: The molecular spectrum of virus-associated high-grade B-cell non-Hodgkin lymphomas. Blood Rev 2024; 65:101172. [PMID: 38267313 DOI: 10.1016/j.blre.2024.101172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/15/2024] [Accepted: 01/16/2024] [Indexed: 01/26/2024]
Abstract
The vast spectrum of aggressive B-cell non-Hodgkin neoplasms (B-NHL) encompasses several infrequent entities occurring in association with viral infections, posing diagnostic challenges for practitioners. In the emerging era of precision oncology, the molecular characterization of malignancies has acquired paramount significance. The pathophysiological comprehension of specific entities and the identification of targeted therapeutic options have seen rapid development. However, owing to their rarity, not all entities have undergone exhaustive molecular characterization. Considerable heterogeneity exists in the extant body of work, both in terms of employed methodologies and the scale of cases studied. Presently, therapeutic strategies are predominantly derived from observations in diffuse large B-cell lymphoma (DLBCL), the most prevalent subset of aggressive B-NHL. Ongoing investigations into the molecular profiles of these uncommon virus-associated entities are progressively facilitating a clearer distinction from DLBCL, ultimately paving the way towards individualized therapeutic approaches. This review consolidates the current molecular insights into aggressive and virus-associated B-NHL, taking into consideration the recently updated 5th edition of the WHO classification of hematolymphoid tumors (WHO-5HAEM) and the International Consensus Classification (ICC). Additionally, potential therapeutically targetable susceptibilities are highlighted, offering a comprehensive overview of the present scientific landscape in the field.
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Affiliation(s)
- H Witte
- Department of Hematology and Oncology, Bundeswehrkrankenhaus Ulm, Oberer Eselsberg 40, 89081 Ulm, Germany; Department of Hematology and Oncology, University Hospital Schleswig-Holstein (UKSH) Campus Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany.
| | - A Künstner
- University Cancer Center Schleswig-Holstein (UCCSH), Ratzeburger Allee 160, 23538 Lübeck, Germany; Medical Systems Biology Group, University of Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany
| | - N Gebauer
- Department of Hematology and Oncology, University Hospital Schleswig-Holstein (UKSH) Campus Lübeck, Ratzeburger Allee 160, 23538 Lübeck, Germany; University Cancer Center Schleswig-Holstein (UCCSH), Ratzeburger Allee 160, 23538 Lübeck, Germany
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2
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Doyon-Laliberté K, Aranguren M, Chagnon-Choquet J, Batraville LA, Dagher O, Richard J, Paniconi M, Routy JP, Tremblay C, Quintal MC, Brassard N, Kaufmann DE, Finzi A, Poudrier J, Roger M. Excess BAFF May Impact HIV-1-Specific Antibodies and May Promote Polyclonal Responses Including Those from First-Line Marginal Zone B-Cell Populations. Curr Issues Mol Biol 2023; 46:25-43. [PMID: 38275663 PMCID: PMC10814910 DOI: 10.3390/cimb46010003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/07/2023] [Accepted: 12/13/2023] [Indexed: 01/27/2024] Open
Abstract
We have previously shown that blood levels of B-cell Activating Factor (BAFF) rise relatively to disease progression status in the context of HIV-1 infection. Excess BAFF was concomitant with hyperglobulinemia and the deregulation of blood B-cell populations, notably with increased frequencies of a population sharing characteristics of transitional immature and marginal zone (MZ) B-cells, which we defined as marginal zone precursor-like" (MZp). In HIV-uninfected individuals, MZp present a B-cell regulatory (Breg) profile and function, which are lost in classic-progressors. Moreover, RNASeq analyses of blood MZp from classic-progressors depict a hyperactive state and signs of exhaustion, as well as an interferon signature similar to that observed in autoimmune disorders such as Systemic Lupus Erythematosus (SLE) and Sjögren Syndrome (SS), in which excess BAFF and deregulated MZ populations have also been documented. Based on the above, we hypothesize that excess BAFF may preclude the generation of HIV-1-specific IgG responses and drive polyclonal responses, including those from MZ populations, endowed with polyreactivity/autoreactivity. As such, we show that the quantity of HIV-1-specific IgG varies with disease progression status. In vitro, excess BAFF promotes polyclonal IgM and IgG responses, including those from MZp. RNASeq analyses reveal that blood MZp from classic-progressors are prone to Ig production and preferentially make usage of IGHV genes associated with some HIV broadly neutralizing antibodies (bNAbs), but also with autoantibodies, and whose impact in the battle against HIV-1 has yet to be determined.
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Affiliation(s)
- Kim Doyon-Laliberté
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (K.D.-L.); (M.A.); (J.C.-C.); (L.-A.B.); (O.D.); (J.R.); (C.T.); (N.B.); (D.E.K.); (A.F.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada;
| | - Matheus Aranguren
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (K.D.-L.); (M.A.); (J.C.-C.); (L.-A.B.); (O.D.); (J.R.); (C.T.); (N.B.); (D.E.K.); (A.F.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada;
| | - Josiane Chagnon-Choquet
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (K.D.-L.); (M.A.); (J.C.-C.); (L.-A.B.); (O.D.); (J.R.); (C.T.); (N.B.); (D.E.K.); (A.F.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada;
| | - Laurie-Anne Batraville
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (K.D.-L.); (M.A.); (J.C.-C.); (L.-A.B.); (O.D.); (J.R.); (C.T.); (N.B.); (D.E.K.); (A.F.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada;
| | - Olina Dagher
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (K.D.-L.); (M.A.); (J.C.-C.); (L.-A.B.); (O.D.); (J.R.); (C.T.); (N.B.); (D.E.K.); (A.F.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada;
| | - Jonathan Richard
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (K.D.-L.); (M.A.); (J.C.-C.); (L.-A.B.); (O.D.); (J.R.); (C.T.); (N.B.); (D.E.K.); (A.F.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada;
| | - Matteo Paniconi
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada;
| | - Jean-Pierre Routy
- Department of Medicine, McGill University Health Centre, McGill University, Montréal, QC H4A 3J1, Canada;
| | - Cécile Tremblay
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (K.D.-L.); (M.A.); (J.C.-C.); (L.-A.B.); (O.D.); (J.R.); (C.T.); (N.B.); (D.E.K.); (A.F.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada;
| | - Marie-Claude Quintal
- Centre Hospitalier Ste-Justine de l’Université de Montréal, Montréal, QC H3T 1C5, Canada;
| | - Nathalie Brassard
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (K.D.-L.); (M.A.); (J.C.-C.); (L.-A.B.); (O.D.); (J.R.); (C.T.); (N.B.); (D.E.K.); (A.F.)
| | - Daniel E. Kaufmann
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (K.D.-L.); (M.A.); (J.C.-C.); (L.-A.B.); (O.D.); (J.R.); (C.T.); (N.B.); (D.E.K.); (A.F.)
- Département de Médecine de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Andrés Finzi
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (K.D.-L.); (M.A.); (J.C.-C.); (L.-A.B.); (O.D.); (J.R.); (C.T.); (N.B.); (D.E.K.); (A.F.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada;
| | - Johanne Poudrier
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada;
| | - Michel Roger
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (K.D.-L.); (M.A.); (J.C.-C.); (L.-A.B.); (O.D.); (J.R.); (C.T.); (N.B.); (D.E.K.); (A.F.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada;
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Hokello J, Tyagi P, Dimri S, Sharma AL, Tyagi M. Comparison of the Biological Basis for Non-HIV Transmission to HIV-Exposed Seronegative Individuals, Disease Non-Progression in HIV Long-Term Non-Progressors and Elite Controllers. Viruses 2023; 15:1362. [PMID: 37376660 DOI: 10.3390/v15061362] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
HIV-exposed seronegative individuals (HESIs) are a small fraction of persons who are multiply exposed to human immunodeficiency virus (HIV), but do not exhibit serological or clinical evidence of HIV infection. In other words, they are groups of people maintaining an uninfected status for a long time, even after being exposed to HIV several times. The long-term non-progressors (LTNPs), on the other hand, are a group of HIV-infected individuals (approx. 5%) who remain clinically and immunologically stable for an extended number of years without combination antiretroviral therapy (cART). Meanwhile, elite controllers are comprise a much lower number (0.5%) of HIV-infected persons who spontaneously and durably control viremia to below levels of detection for at least 12 months, even when using the most sensitive assays, such as polymerase chain reaction (PCR) in the absence of cART. Despite the fact that there is no universal agreement regarding the mechanisms by which these groups of individuals are able to control HIV infection and/or disease progression, there is a general consensus that the mechanisms of protection are multifaceted and include genetic, immunological as well as viral factors. In this review, we analyze and compare the biological factors responsible for the control of HIV in these unique groups of individuals.
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Affiliation(s)
- Joseph Hokello
- Department of Biology, Faculty of Science and Education, Busitema University, Tororo P.O. Box 236, Uganda
| | - Priya Tyagi
- Cherry Hill East High School, 1750 Kresson Rd, Cherry Hill, NJ 08003, USA
| | - Shelly Dimri
- George C. Marshall High School, Fairfax County Public Schools, 7731 Leesburg Pike, Falls Church, VA 22043, USA
| | | | - Mudit Tyagi
- Center for Translational Medicine, Thomas Jefferson University, 1020 Locust Street, Philadelphia, PA 19107, USA
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4
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Gessese T, Asrie F, Mulatie Z. Human Immunodeficiency Virus Related Non-Hodgkin's Lymphoma. Blood Lymphat Cancer 2023; 13:13-24. [PMID: 37275434 PMCID: PMC10237187 DOI: 10.2147/blctt.s407086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 05/14/2023] [Indexed: 06/07/2023]
Abstract
Human immunodeficiency virus infection is related with an increased risk of hematological malignancy principally, non-Hodgkin lymphoma. Most non-Hodgkin lymphomas are acquired immunodeficiency syndrome defining and constitute greater than 50% of all acquired immunodeficiency syndrome defining cancers. The main pathogenesis mechanisms are immunodeficiency, chronic antigenic stimulation, and the ability to infect cancer cells causing direct carcinogenesis. Human immunodeficiency virus related non-Hodgkin lymphomas are heterogeneous in immunophenotyping and molecular features; and choice of drug treatments is similar with sporadic types. The main objective is to assess the epidemiology, pathogenesis, and morphology of human immunodeficiency virus related non-Hodgkin lymphoma. The searching strategy was done by searching relevant original and review articles from www.biosemanticjane/org, Google scholar, Google, and PubMed sites using keywords like; Acquired immunodeficiency syndrome, Human immunodeficiency virus, and non-Hodgkin lymphoma. In conclusion, human immunodeficiency virus infected people continue to have elevated risk of non-Hodgkin lymphoma. Diffuse large B-cell lymphomas are the most common and severe subtype. The pathogenesis of this type of lymphoma is associated with chromosomal abnormalities that deregulate the expression of various oncogenes by different viral particles and cytokines. However, the role of these viral particles and cytokines on pathogenesis is not clearly stated, so further study could be required.
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Affiliation(s)
- Tesfaye Gessese
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
| | - Fikir Asrie
- Department of Hematology and Immunohematology, School of Biomedical and Laboratory Sciences, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Zewudu Mulatie
- Department of Medical Laboratory Sciences, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia
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Doyon-Laliberté K, Aranguren M, Byrns M, Chagnon-Choquet J, Paniconi M, Routy JP, Tremblay C, Quintal MC, Brassard N, Kaufmann DE, Poudrier J, Roger M. Excess BAFF Alters NR4As Expression Levels and Breg Function of Human Precursor-like Marginal Zone B-Cells in the Context of HIV-1 Infection. Int J Mol Sci 2022; 23:ijms232315142. [PMID: 36499469 PMCID: PMC9741410 DOI: 10.3390/ijms232315142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/24/2022] [Accepted: 11/29/2022] [Indexed: 12/04/2022] Open
Abstract
We have reported excess B-cell activating factor (BAFF) in the blood of HIV-infected progressors, which was concomitant with increased frequencies of precursor-like marginal zone (MZp) B-cells, early on and despite antiretroviral therapy (ART). In controls, MZp possess a strong B-cell regulatory (Breg) potential. They highly express IL-10, the orphan nuclear receptors (NR)4A1, NR4A2 and NR4A3, as well as the ectonucleotidases CD39 and CD73, all of which are associated with the regulation of inflammation. Furthermore, we have shown MZp regulatory function to involve CD83 signaling. To address the impact of HIV infection and excessive BAFF on MZp Breg capacities, we have performed transcriptomic analyses by RNA-seq of sorted MZp B-cells from the blood of HIV-infected progressors. The Breg profile and function of blood MZp B-cells from HIV-infected progressors were assessed by flow-cytometry and light microscopy high-content screening (HCS) analyses, respectively. We report significant downregulation of NR4A1, NR4A2, NR4A3 and CD83 gene transcripts in blood MZp B-cells from HIV-infected progressors when compared to controls. NR4A1, NR4A3 and CD83 protein expression levels and Breg function were also downregulated in blood MZp B-cells from HIV-infected progressors and not restored by ART. Moreover, we observe decreased expression levels of NR4A1, NR4A3, CD83 and IL-10 by blood and tonsillar MZp B-cells from controls following culture with excess BAFF, which significantly diminished their regulatory function. These findings, made on a limited number of individuals, suggest that excess BAFF contributes to the alteration of the Breg potential of MZp B-cells during HIV infection and possibly in other situations where BAFF is found in excess.
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Affiliation(s)
- Kim Doyon-Laliberté
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Matheus Aranguren
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Michelle Byrns
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Josiane Chagnon-Choquet
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Matteo Paniconi
- Service d’Aide à la Formation Interdisciplinaire et à la Réussite Étudiante (SAFIRE), Faculté des Arts et Sciences de l’Université de Montréal, Montréal, QC H3T 1N8, Canada
| | - Jean-Pierre Routy
- Department of Medicine, McGill University Health Centre, McGill University, Montréal, QC H4A 3J1, Canada
| | - Cécile Tremblay
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Marie-Claude Quintal
- Centre Hospitalier Ste-Justine de l’Université de Montréal, Montréal, QC H3T 1C5, Canada
| | - Nathalie Brassard
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Daniel E. Kaufmann
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Médecine de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
| | - Johanne Poudrier
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
- Correspondence: (J.P.); (M.R.)
| | - Michel Roger
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3T 1J4, Canada
- Correspondence: (J.P.); (M.R.)
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Clinical Features, Phenotypic Markers and Outcomes of Diffuse Large B-Cell Lymphoma between HIV-Infected and HIV-Uninfected Chinese Patients. Cancers (Basel) 2022; 14:cancers14215380. [PMID: 36358798 PMCID: PMC9655449 DOI: 10.3390/cancers14215380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/12/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022] Open
Abstract
Background: The effect of HIV infection on the clinicopathological characteristics of diffuse large B-cell lymphoma (DLBCL) remains debatable. Methods: Fifty-three HIV-infected and ninety-three HIV-uninfected DLBCL patients were enrolled in the retrospective study by propensity score matching for sex, age, body mass index and international prognostic index (IPI) at a ratio of 1:2. The clinicopathological characteristics were compared between the two groups. Results: HIV-infected DLBCL patients had lower white blood cell counts [×109/L; 4.4 (3.4−5.6) vs. 6.1 (4.2−8.2), p < 0.001], platelet counts (×109/L; 184.7 ± 89.3 vs. 230.0 ± 113.9, p = 0.014) and serum albumin (g/L; 37.3 ± 6.9 vs. 41.3 ± 6.2, p < 0.001) but higher incidences of central nervous system (CNS) involvement (9.4% vs. 1.1%, p = 0.014), bone marrow involvement (24.5% vs. 11.5%, p = 0.044) and Epstein−Barr viremia (61.1% vs. 26.7%, p = 0.002) than HIV-uninfected patients. In terms of histopathology, HIV-infected patients had higher positivity of Epstein−Barr virus-encoded small RNA (EBER) (41.7% vs. 6.7%, p = 0.002), but lower CD20 (90.2% vs. 98.7%, p= 0.029) and CD79a (23.1% vs. 53.7%, p < 0.001) expression. The overall response rate (ORR) at the end of chemotherapy (70.2% vs. 87.8%, p= 0.012) and 1-year overall survival (OS) (61.7% vs. 84.2%, log-rank p = 0.006) in HIV-infected patients were significantly lower than those in HIV-uninfected patients. Multivariate analysis suggested IPI ≤2.0 [adjusted odds ratio (AOR) (95% confidence interval): 5.0 (1.2−21.2), p = 0.030] was associated with ORR, hypoalbuminemia [AOR: 3.3 (1.3−9.1), p = 0.018] and CNS involvement [AOR: 3.3 (1.0−10.5), p = 0.044] were associated with reduced 1-year OS in HIV-infected patients. Conclusion: HIV-infected DLBCL patients have unique blood profiles and phenotypic markers. Low ORR and 1-year OS were observed in HIV-infected DLBCL patients in our study, even in the HAART era.
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Lurain K, Ramaswami R, Yarchoan R. The role of viruses in HIV-associated lymphomas. Semin Hematol 2022; 59:183-191. [PMID: 36805886 PMCID: PMC9971650 DOI: 10.1053/j.seminhematol.2022.11.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 11/15/2022] [Accepted: 11/26/2022] [Indexed: 12/03/2022]
Abstract
Lymphomas are among the most common cancers in people with HIV (PWH). The lymphoma subtypes and pathogenesis of lymphoma in PWH are different from the immunocompetent population. It is well-known that HIV causes severe CD4+ T cell lymphopenia in the absence of antiretroviral therapy (ART); however, the risk of developing certain subtypes of lymphoma remains elevated even in people receiving ART with preserved CD4+ T cells. HIV contributes to lymphomagenesis and causes decreased immune surveillance via T cell depletion and dysregulation, B cell dysregulation, and the potential contribution of HIV-encoded proteins. The oncogenic gammaherpesviruses, Epstein-Barr virus (EBV) and Kaposi sarcoma herpesvirus (KSHV, also known as human herpesvirus 8), are the causative agents in the majority of HIV-associated lymphomas. HIV-associated T cell depletion and dysregulation allows EBV and KSHV to proliferate in infected B cells. Specific EBV- and KSHV-encoded proteins participate in B cell activation, and proliferation leading to B cell transformation. Understanding the distinct pathogenesis of HIV-associated lymphomas affords opportunities to develop therapies that specifically target these unique aspects and improve lymphoma outcomes in PWH. Agents being studied that target the specific roles of HIV, EBV, and KSHV in lymphomagenesis include immunotherapies, targeted agents, and cellular therapies.
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Affiliation(s)
- Kathryn Lurain
- HIV & AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD.
| | - Ramya Ramaswami
- HIV & AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Robert Yarchoan
- HIV & AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD
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8
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Viral Agents as Potential Drivers of Diffuse Large B-Cell Lymphoma Tumorigenesis. Viruses 2022; 14:v14102105. [DOI: 10.3390/v14102105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
Among numerous causative agents recognized as oncogenic drivers, 13% of total cancer cases occur as a result of viral infections. The intricacy and diversity of carcinogenic processes, however, raise significant concerns about the mechanistic function of viruses in cancer. All tumor-associated viruses have been shown to encode viral oncogenes with a potential for cell transformation and the development of malignancies, including diffuse large B-cell lymphoma (DLBCL). Given the difficulties in identifying single mechanistic explanations, it is necessary to combine ideas from systems biology and viral evolution to comprehend the processes driving viral cancer. The potential for more efficient and acceptable therapies lies in targeted medicines that aim at viral proteins or trigger immune responses to either avoid infection or eliminate infected or cancerous cells. In this review, we aim to describe the role of viral infections and their mechanistic approaches in DLBCL tumorigenesis. To the best of our knowledge, this is the first review summarizing the oncogenic potential of numerous viral agents in DLBCL development.
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Oyelade T, Raya RP, Latief K. HIV infection and the implication for COVID‐19 vaccination. PUBLIC HEALTH CHALLENGES 2022. [PMID: 37521727 PMCID: PMC9353425 DOI: 10.1002/puh2.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Abstract Human immunodeficiency virus (HIV) is associated with altered cellular and humoral immune response, especially in patients with an untreated or chronic infection. This may be due to direct and/or indirect HIV viral activities resulting in T‐ and B‐cells dysfunctions. Although still unclear, various studies have proposed that HIV infection may exacerbate the clinical outcomes of COVID‐19. Indeed, COVID‐19 vaccines were developed in record time and have been shown to reduce the severity of COVID‐19 in the general population. These vaccines were also earmarked as a solution to global disruptions caused by the COVID‐19 pandemic. HIV infection has been reported to reduce the efficacy of various other vaccines including those used against Streptococcus pneumoniae, Clostridium tetani, and influenza viruses. However, current guidelines for the administration of available COVID‐19 vaccines do not account for the immune‐compromised state of people living with HIV (PLWH). We discuss here the potentials, nature, and implications of this HIV‐induced dampening of the humoral immune response on COVID‐19 vaccines by first reviewing the literature about efficacy of previous vaccines in PLWH, and then assessing the proportion of PLWH included in phase III clinical trials of the COVID‐19 vaccines currently available. The clinical and public health implications as well as suggestions for governments and non‐governmental organizations are also proposed in the context of whether findings on the safety and efficacy of the vaccines could be extended to PLWH. Impacts The human immunodeficiency virus (HIV) is characterized by attenuated humoral immunity that may reduce the efficacy of vaccines in people living with HIV (PLWH). Vaccination against the SARS‐CoV‐2 infection remains the main public health answer to the COVID‐19 pandemic. Although no significant safety concerns have been raised regarding the COVID‐19 vaccines in PLWH, the efficacy of these vaccines in PLWH has not received due attention. Indeed, phase III clinical trials for the safety and efficacy of COVID‐19 vaccines involved a significantly low number of PLWH. There are major gaps in knowledge on the efficacy of COVID‐19 vaccines in PLWH and until further research is carried out, PLWH should be prioritized along with other at‐risk groups for repeated vaccination and safeguard.
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Affiliation(s)
- Tope Oyelade
- Institute for Liver and Digestive Health Division of Medicine University College London London UK
| | - Reynie Purnama Raya
- Institute for Global Health Faculty of Population Health Sciences University College London London UK
- Faculty of Science Universitas ‘Aisyiyah Bandung Bandung Indonesia
| | - Kamaluddin Latief
- Global Health and Health Security Department College of Public Health Taipei Medical University Taipei City Taiwan
- Centre for Family Welfare Faculty of Public Health University of Indonesia Depok Indonesia
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10
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Dhande JR, Bagul RD, Thakar MR. HIV-gp140-Specific Antibodies Generated From Indian Long-Term Non-Progressors Mediate Potent ADCC Activity and Effectively Lyse Reactivated HIV Reservoir. Front Immunol 2022; 13:844610. [PMID: 35309295 PMCID: PMC8924355 DOI: 10.3389/fimmu.2022.844610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 02/07/2022] [Indexed: 11/13/2022] Open
Abstract
Strategies to reduce the human immunodeficiency virus (HIV) reservoir are urgently required. The antibody-dependent cellular cytotoxicity (ADCC)-mediating anti-HIV antibodies have shown an association with HIV control. We assessed if such antibodies can be generated in vitro and whether the generated antibodies can facilitate the reduction of reactivated HIV reservoir. We isolated HIV-1-gp140-specific memory B cells from HIV-1-infected long-term non-progressors (LTNPs) with or without plasma ADCC and cultured them to generate anti-HIV antibodies. The ability of the generated antibodies to mediate ADCC and facilitate NK cell-mediated lysis of reactivated HIV reservoir was assessed by the rapid fluorometric antibody-dependent cellular cytotoxicity assay and a flow-based novel latency reduction assay, respectively. All LTNPs showed the presence of gp140-specific memory B cells [median: 0.79% (0.54%–1.225%)], which were successfully differentiated into plasma cells [median 72.0% (68.7–82.2%)] in an in-vitro culture and secreted antibodies [median OD: 0.253 (0.205–0.274)]. The HIV-gp140-specific antibodies were generated from 11/13 LTNPs irrespective of their plasma ADCC status. The generated antibodies from LTNPs with plasma ADCC showed higher ADCC potency (median: 37.6%, IQR: 32.95%–51%) and higher reduction in reactivated HIV reservoir (median: 62.5%, IQR: 58.71%–64.92%) as compared with the antibodies generated from LTNPs without plasma ADCC (ADCC: median: 8.85%, IQR: 8%–9.7%; and % p24 reduction median: 13.84, IQR: 9.863%–17.81%). The potency of these antibodies to reduce latent reservoir was two-fold higher than the respective plasma ADCC. The study showed that the potent ADCC-mediating antibodies could be generated from memory B cells of the LTNPs with plasma ADCC activity. These antibodies also showed potent ability to facilitate NK cell-mediated lysis of reactivated HIV reservoirs. It also indicated that memory B cells from individuals with plasma ADCC activity should be preferentially used for such antibody generation. The important role of these antibodies in the reduction of latent reservoirs needs to be further evaluated as a useful strategy to obtain a functional cure for HIV infection.
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11
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Marginal Zone B-Cell Populations and Their Regulatory Potential in the Context of HIV and Other Chronic Inflammatory Conditions. Int J Mol Sci 2022; 23:ijms23063372. [PMID: 35328792 PMCID: PMC8949885 DOI: 10.3390/ijms23063372] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 03/11/2022] [Accepted: 03/17/2022] [Indexed: 12/12/2022] Open
Abstract
Inflammation in the context of Human Immunodeficiency Virus (HIV) establishes early and persists beyond antiretroviral therapy (ART). As such, we have shown excess B-cell activating factor (BAFF) in the blood of HIV-infected progressors, as soon as in the acute phase, and despite successful ART. Excess BAFF was associated with deregulation of the B-cell compartment; notably, with increased frequencies of a population sharing features of both transitional immature (TI) and marginal zone (MZ) B-cells, we termed Marginal Zone precursor-like (MZp). We have reported similar observations with HIV-transgenic mice, Simian Immunodeficiency Virus (SIV)-infected macaques, and more recently, with HIV-infected Beninese commercial sex workers, which suggests that excess BAFF and increased frequencies of MZp B-cells are reliable markers of inflammation in the context of HIV. Importantly, we have recently shown that in healthy individuals, MZps present an important regulatory B-cell (Breg) profile and function. Herein, we wish to review our current knowledge on MZ B-cell populations, especially their Breg status, and that of other B-cell populations sharing similar features. BAFF and its analog A Proliferation-Inducing Ligand (APRIL) are important in shaping the MZ B-cell pool; moreover, the impact that excess BAFF—encountered in the context of HIV and several chronic inflammatory conditions—may exert on MZ B-cell populations, Breg and antibody producing capacities is a threat to the self-integrity of their antibody responses and immune surveillance functions. As such, deregulations of MZ B-cell populations contribute to autoimmune manifestations and the development of MZ lymphomas (MZLs) in the context of HIV and other inflammatory diseases. Therefore, further comprehending the mechanisms regulating MZ B-cell populations and their functions could be beneficial to innovative therapeutic avenues that could be deployed to restore MZ B-cell immune competence in the context of chronic inflammation involving excess BAFF.
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12
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Roe K. NK-Cell Exhaustion, B-Cell Exhaustion and T-Cell Exhaustion - the Differences and Similarities. Immunology 2022; 166:155-168. [PMID: 35266556 DOI: 10.1111/imm.13464] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 02/22/2022] [Accepted: 03/04/2022] [Indexed: 11/29/2022] Open
Abstract
T-cell exhaustion has been extensively researched, compared to B-cell exhaustion and NK-cell exhaustion, which have received considerably less attention; and there is less of a consensus on the precise definitions of NK-cell and B-cell exhaustion. NK-cell exhaustion, B-cell exhaustion and T-cell exhaustion are examples of lymphocyte exhaustion, and they have several differences and similarities. Lymphocyte exhaustion is also frequently confused with anergy, cellular senescence and suppression, because these conditions can have significant overlapping similarities with exhaustion. An additional source of confusion is due to the fact that lymphocyte exhaustion is not a binary state, but instead has a spectrum of severity induced by different levels and durations of continuous antigenic stimulation. Concurrent multiple types of lymphocyte exhaustion are possible, and this situation is henceforth called poly-lymphocyte exhaustion. Poly-lymphocyte exhaustion for the same cancer or pathogen would be especially dangerous. Since there are significant advantages for a pathogen by inducing poly-lymphocyte exhaustion in an immune system, there are pathogens with an evolved capability to induce poly-lymphocyte exhaustion. These pathogens may include certain manipulative viruses, bacteria, fungi and protozoan parasites.
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Affiliation(s)
- Kevin Roe
- Retired, San Jose, California, United States of America
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13
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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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14
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Blondin-Ladrie L, Aranguren M, Doyon-Laliberté K, Poudrier J, Roger M. The Importance of Regulation in Natural Immunity to HIV. Vaccines (Basel) 2021; 9:vaccines9030271. [PMID: 33803543 PMCID: PMC8003059 DOI: 10.3390/vaccines9030271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 02/07/2023] Open
Abstract
Worldwide, most Human Immunodeficiency Virus (HIV) infections are acquired through heterosexual intercourse, and in sub-Saharan Africa, 59% of new HIV infections affect women. Vaccines and microbicides hold promise for preventing the acquisition of HIV. To this end, the study of HIV highly exposed seronegative (HESN) female commercial sex workers (CSWs), who constitute a model of natural immunity to HIV, provides an exceptional opportunity to determine important clues for the development of preventive strategies. Studies using both female genital tract (FGT) and peripheral blood samples of HESN CSWs, have allowed identifying distinct features, notably low-inflammatory patterns associated with resistance to infection. How this seemingly regulated response is achieved at the initial site of HIV infection remains unknown. One hypothesis is that populations presenting regulatory profiles contribute to the orchestration of potent anti-viral and low-inflammatory responses at the initial site of HIV transmission. Here, we view to update our knowledge regarding this issue.
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Affiliation(s)
- Laurence Blondin-Ladrie
- Axe Immunopathologie, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X0A9, Canada; (L.B.-L.); (M.A.); (K.D.-L.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3C3J7, Canada
| | - Matheus Aranguren
- Axe Immunopathologie, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X0A9, Canada; (L.B.-L.); (M.A.); (K.D.-L.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3C3J7, Canada
| | - Kim Doyon-Laliberté
- Axe Immunopathologie, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X0A9, Canada; (L.B.-L.); (M.A.); (K.D.-L.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3C3J7, Canada
| | - Johanne Poudrier
- Axe Immunopathologie, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X0A9, Canada; (L.B.-L.); (M.A.); (K.D.-L.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3C3J7, Canada
- Correspondence: (J.P.); (M.R.)
| | - Michel Roger
- Axe Immunopathologie, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X0A9, Canada; (L.B.-L.); (M.A.); (K.D.-L.)
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, QC H3C3J7, Canada
- Institut National de Santé Publique du Québec, Montréal, QC H2P1E2, Canada
- Correspondence: (J.P.); (M.R.)
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15
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B Lymphocytes, but Not Dendritic Cells, Efficiently HIV-1 Trans Infect Naive CD4 + T Cells: Implications for the Viral Reservoir. mBio 2021; 12:mBio.02998-20. [PMID: 33688006 PMCID: PMC8092276 DOI: 10.1128/mbio.02998-20] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Insight into the establishment and maintenance of HIV-1 infection in resting CD4+ T cell subsets is critical for the development of therapeutics targeting the HIV-1 reservoir. Although the frequency of HIV-1 infection, as quantified by the frequency of HIV-1 DNA, is lower in CD4+ naive T cells (TN) than in the memory T cell subsets, recent studies have shown that TN harbor a large pool of replication-competent virus. Interestingly, however, TN are highly resistant to direct (cis) HIV-1 infection in vitro, in particular to R5-tropic HIV-1, as TN do not express CCR5. In this study, we investigated whether TN could be efficiently HIV-1 trans infected by professional antigen-presenting B lymphocytes and myeloid dendritic cells (DC) in the absence of global T cell activation. We found that B cells, but not DC, have a unique ability to efficiently trans infect TNin vitro In contrast, both B cells and DC mediated HIV-1 trans infection of memory and activated CD4+ T cells. Moreover, we found that TN isolated from HIV-1-infected nonprogressors (NP) harbor significantly disproportionately lower levels of HIV-1 DNA than TN isolated from progressors. This is consistent with our previous finding that antigen-presenting cells (APC) derived from NP do not efficiently trans infect CD4+ T cells due to alterations in APC cholesterol metabolism and cell membrane lipid raft organization. These findings support that B cell-mediated trans infection of TN with HIV-1 has a more profound role than previously considered in establishing the viral reservoir and control of HIV-1 disease progression.IMPORTANCE The latent human immunodeficiency virus type 1 (HIV-1) reservoir in persons on antiretroviral therapy (ART) represents a major barrier to a cure. Although most studies have focused on the HIV-1 reservoir in the memory T cell subset, replication-competent HIV-1 has been isolated from TN, and CCR5-tropic HIV-1 has been recovered from CCR5neg TN from ART-suppressed HIV-1-infected individuals. In this study, we showed that CCR5neg TN are efficiently trans infected with R5-tropic HIV-1 by B lymphocytes, but not by myeloid dendritic cells. Furthermore, we found that TN isolated from NP harbor no or significantly fewer copies of HIV-1 DNA than those from ART-suppressed progressors. These findings support that B cell-mediated trans infection of TN with HIV-1 has a more profound role than previously considered in establishing the viral reservoir and control of HIV-1 disease progression. Understanding the establishment and maintenance of the HIV-1 latent reservoir is fundamental for the design of effective treatments for viral eradication.
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Frequent expression of activation-induced cytidine deaminase in diffuse large B-cell lymphoma tissues from persons living with HIV. AIDS 2020; 34:2025-2035. [PMID: 32773475 PMCID: PMC9306295 DOI: 10.1097/qad.0000000000002653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
OBJECTIVE The increased risk for persons living with HIV to develop diffuse large B-cell lymphoma (DLBCL) even in the post-antiretroviral therapy eras suggests a role beyond immunosuppression in lymphoma development. However, the mechanisms leading to lymphoma in the HIV setting are not fully understood. HIV is known to induce activation-induced cytidine deaminase (AID) levels in nonneoplastic B cells in vitro and chronic AID expression may play an important role in lymphomagenesis. Although AID expression is observed in B-cell lymphoma, studies in HIV-associated DLBCL are limited. DESIGN In this study, we conducted a retrospective review of DLBCL tissues from patients with and without HIV infection to compare expression of AID and B-cell receptors potentially involved in HIV and B-cell interaction. METHODS We evaluated DLBCL formalin-fixed paraffin-embedded tissues from 72 HIV-seropositive and 58 HIV-seronegative patients for AID, DC-SIGN, and CD40 protein expression. BCL2 and MYC, two well established prognostically significant oncoproteins in DLBCL, were also assessed at the protein and mRNA levels. Subset analysis was performed according to DLBCL subtype and EBV status. RESULTS Of note, AID expression was more frequent in HIV-associated DLBCL compared with non-HIV-associated DLBCL regardless of cell-of-origin subtype, and also displayed significantly less BCL2 expression. Despite no direct correlation with AID expression, the HIV-DLBCL tissues also exhibited high levels of the DC-SIGN receptor. CONCLUSION Collectively, these findings support a potential role for AID in the pathogenesis of HIV-associated lymphomas and suggest the need of further investigations into the involvement of the DC-SIGN receptor-signaling pathway.
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Giagulli C, Caccuri F, Zorzan S, Bugatti A, Zani A, Filippini F, Manocha E, D'Ursi P, Orro A, Dolcetti R, Caruso A. B-cell clonogenic activity of HIV-1 p17 variants is driven by PAR1-mediated EGF transactivation. Cancer Gene Ther 2020; 28:649-666. [PMID: 33093643 PMCID: PMC8203498 DOI: 10.1038/s41417-020-00246-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/30/2020] [Accepted: 10/08/2020] [Indexed: 11/29/2022]
Abstract
Combined antiretroviral therapy (cART) for HIV-1 dramatically slows disease progression among HIV+ individuals. Currently, lymphoma represents the main cause of death among HIV-1-infected patients. Detection of p17 variants (vp17s) endowed with B-cell clonogenic activity in HIV-1-seropositive patients with lymphoma suggests their possible role in lymphomagenesis. Here, we demonstrate that the clonogenic activity of vp17s is mediated by their binding to PAR1 and to PAR1-mediated EGFR transactivation through Gq protein. The entire vp17s-triggered clonogenic process is MMPs dependent. Moreover, phosphoproteomic and bioinformatic analysis highlighted the crucial role of EGFR/PI3K/Akt pathway in modulating several molecules promoting cancer progression, including RAC1, ABL1, p53, CDK1, NPM, Rb, PTP-1B, and STAT1. Finally, we show that a peptide (F1) corresponding to the vp17s functional epitope is sufficient to trigger the PAR1/EGFR/PI3K/Akt pathway and bind PAR1. Our findings suggest novel potential therapeutic targets to counteract vp17-driven lymphomagenesis in HIV+ patients.
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Affiliation(s)
- Cinzia Giagulli
- Section of Microbiology, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy
| | - Francesca Caccuri
- Section of Microbiology, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy
| | - Simone Zorzan
- Plantech, Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science & Technology (LIST), L-4422, Belvaux, Luxembourg
| | - Antonella Bugatti
- Section of Microbiology, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy
| | - Alberto Zani
- Section of Microbiology, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy
| | - Federica Filippini
- Section of Microbiology, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy
| | - Ekta Manocha
- Section of Microbiology, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy
| | - Pasqualina D'Ursi
- Department of Biomedical Sciences, Institute for Biomedical Technologies e National Research Council (ITB-CNR), 20090, Segrate (MI), Italy
| | - Alessandro Orro
- Department of Biomedical Sciences, Institute for Biomedical Technologies e National Research Council (ITB-CNR), 20090, Segrate (MI), Italy
| | - Riccardo Dolcetti
- University of Queensland Diamantina Institute, Translational Research Institute, University of Queensland, Brisbane, QLD, Australia.,Cancer Bio-Immunotherapy Unit, Centro di Riferimento Oncologico - IRCCS, Aviano, Italy
| | - Arnaldo Caruso
- Section of Microbiology, Department of Molecular and Translational Medicine, University of Brescia, 25123, Brescia, Italy.
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Atallah-Yunes SA, Murphy DJ, Noy A. HIV-associated Burkitt lymphoma. LANCET HAEMATOLOGY 2020; 7:e594-e600. [PMID: 32735838 DOI: 10.1016/s2352-3026(20)30126-5] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/08/2020] [Accepted: 04/15/2020] [Indexed: 12/30/2022]
Abstract
Burkitt lymphoma is a rare and aggressive non-Hodgkin lymphoma with three classifications: endemic, sporadic, and immunodeficiency-related. High-intensity chemotherapeutic regimens have considerably improved overall survival for patients with Burkitt lymphoma. In this Review of HIV-associated Burkitt lymphoma, we summarise expert opinion and provide general recommendations for the treatment of Burkitt lymphoma in patients with HIV on the basis of retrospective and prospective studies, taking into consideration immune status, CD4 cell counts, the presence of systemic disease, and the risk of CNS involvement or relapse. We also discuss the role of rituximab and antiretroviral therapy. We highlight the reasons behind the possible different mechanisms of lymphomagenesis in HIV-associated Burkitt lymphoma and endemic Burkitt lymphoma, which indicate that HIV might have either a direct or indirect oncogenic role in Burkitt lymphoma. We discuss the possible mechanisms by which HIV and HIV proteins could directly contribute to lymphomagenesis. Identifying these mechanisms might lead to the development of therapies that have fewer toxic effects than high-intensity chemotherapeutic regimens.
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Affiliation(s)
- Suheil Albert Atallah-Yunes
- Department of Medicine, University of Massachusetts Medical School-Baystate Medical Center, Springfield, MA, USA
| | - Dermot J Murphy
- Department of Medicine, Mercy Medical Center, Springfield, MA, USA
| | - Ariela Noy
- Department of Medicine, Memorial Sloan Kettering Cancer Center, Weill Medical College of Cornell University, New York, NY, USA.
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Liu Y, Li X, Han Y, Qiu Z, Song X, Li B, Zhang H, Wang H, Feng K, Liu L, Wang J, Sun M, Li T. High APRIL Levels Are Associated With Slow Disease Progression and Low Immune Activation in Chronic HIV-1-Infected Patients. Front Med (Lausanne) 2020; 7:299. [PMID: 32850873 PMCID: PMC7396611 DOI: 10.3389/fmed.2020.00299] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 05/26/2020] [Indexed: 12/15/2022] Open
Abstract
Objective: B-cell-activating factor (BAFF) has been determined to be involved in HIV-1 infection and is correlated with disease progression, while its homologous molecule, a proliferation-inducing ligand (APRIL), is less frequently reported, and its role remains unclear. We aimed to characterize the APRIL levels in subjects with different HIV-1 infection statuses and determine the relationships with disease progression and immune activation. Methods: The plasma levels of APRIL were compared among 17 long-term non-progressors (LTNPs), 17 typical progressors (TPs), 10 ART-treated patients, and 10 healthy donors (HDs). Seventeen LTNPs and a subset of TPs (n = 6) who initiated ART were assessed longitudinally. The correlations between the APRIL levels and markers of disease progression, B-cell count and specific antibody response, and markers of immune activation and functional cells were analyzed. Results: The circulating APRIL levels were significantly elevated in the LTNPs relative to the TPs, ART-treated patients, and HDs. The longitudinal investigation revealed that the APRIL levels were decreased during follow-up in the LTNPs. ART did not significantly influence the APRIL levels. The levels of plasma APRIL were negatively correlated with the plasma HIV-1 viral load and cellular HIV-1 DNA levels and positively correlated with the CD4+ T-cell count and CD4/CD8 ratio. An inverse correlation was observed between the APRIL and BAFF levels. Furthermore, the APRIL levels were negatively correlated with the frequency of activated CD8+ T cells and levels of interferon gamma-induced protein 10 (IP-10) and monocyte chemoattractant protein-1 (MCP-1). Finally, positive correlations were observed among the APRIL levels, the frequency of CD8+CD28+ T cells, and natural killer (NK) cell count. Conclusion: The APRIL levels were elevated in the LTNPs and negatively correlated with disease progression and immune activation, suggesting likely protective activity in HIV-1 infection.
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Affiliation(s)
- Yubin Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xiuxia Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Yang Han
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Zhifeng Qiu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaojing Song
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Bingxiang Li
- Institute of Medical Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Kunming, China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, China
| | - Han Zhang
- Institute of Medical Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Kunming, China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, China
| | - Hongye Wang
- Institute of Medical Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Kunming, China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, China
| | - Kai Feng
- Institute of Medical Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Kunming, China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, China
| | - Longding Liu
- Institute of Medical Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Kunming, China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, China
| | - Jingjing Wang
- Institute of Medical Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Kunming, China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, China
| | - Ming Sun
- Institute of Medical Biology, Peking Union Medical College and Chinese Academy of Medical Sciences, Kunming, China.,Yunnan Key Laboratory of Vaccine Research & Development on Severe Infectious Diseases, Kunming, China
| | - Taisheng Li
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China.,Clinical Immunology Center, Chinese Academy of Medical Sciences, Beijing, China.,School of Medicine, Tsinghua University, Beijing, China
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Epeldegui M, Hussain SK. The Role of Microbial Translocation and Immune Activation in AIDS-Associated Non-Hodgkin Lymphoma Pathogenesis: What Have We Learned? Crit Rev Immunol 2020; 40:41-51. [PMID: 32421978 PMCID: PMC7241309 DOI: 10.1615/critrevimmunol.2020033319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Human immunodeficiency virus (HIV) infection is associated with greatly increased risk for development of non-Hodgkin lymphoma (NHL). Nearly all acquired immunodeficiency syndrome (AIDS)-associated NHL (AIDS-NHL) is of B-cell origin. Two major mechanisms are believed to contribute to the genesis of AIDS-NHL: (1) loss of immunoregulation of Epstein-Barr virus (EBV)+ B cells, resulting from impaired T-cell function late in the course of HIV disease and (2) chronic B-cell activation, leading to DNA-modifying events that contribute to oncogene mutations/ translocations. HIV infection has long been known to be associated with chronic inflammation and polyclonal B-cell activation, and more recently, microbial translocation. Microbial translocation is bacterial product leakage from gut lumen into the peripheral circulation, resulting in high levels of lipopolysaccharide (LPS) in the peripheral circulation, leading to chronic immune activation and inflammation. We review recent literature linking microbial translocation to lymphom-agenesis. This includes epidemiological studies of biomarkers of microbial translocation with risk of AIDS-NHL and emerging data on the mechanisms by which microbial translocation may lead to AIDS-NHL development.
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Affiliation(s)
- Marta Epeldegui
- Department of Obstetrics and Gynecology, UCLA AIDS Institute, David Geffen School of Medicine, University of California, Los Angeles
| | - Shehnaz K. Hussain
- Cedars-Sinai Cancer and Department of Medicine, Cedars-Sinai Medical Center, Los Angeles
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21
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O’Connell P, Amalfitano A, Aldhamen YA. SLAM Family Receptor Signaling in Viral Infections: HIV and Beyond. Vaccines (Basel) 2019; 7:E184. [PMID: 31744090 PMCID: PMC6963180 DOI: 10.3390/vaccines7040184] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/04/2019] [Accepted: 11/13/2019] [Indexed: 02/06/2023] Open
Abstract
The signaling lymphocytic activation molecule (SLAM) family of receptors are expressed on the majority of immune cells. These receptors often serve as self-ligands, and play important roles in cellular communication and adhesion, thus modulating immune responses. SLAM family receptor signaling is differentially regulated in various immune cell types, with responses generally being determined by the presence or absence of two SLAM family adaptor proteins-Ewing's sarcoma-associated transcript 2 (EAT-2) and SLAM-associated adaptor protein (SAP). In addition to serving as direct regulators of the immune system, certain SLAM family members have also been identified as direct targets for specific microbes and viruses. Here, we will discuss the known roles for these receptors in the setting of viral infection, with special emphasis placed on HIV infection. Because HIV causes such complex dysregulation of the immune system, studies of the roles for SLAM family receptors in this context are particularly exciting.
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Affiliation(s)
- Patrick O’Connell
- Department of Microbiology and Molecular Genetics, College of Osteopathic Medicine, Michigan State University, East Lansing, MI 48824, USA, (A.A.)
| | - Andrea Amalfitano
- Department of Microbiology and Molecular Genetics, College of Osteopathic Medicine, Michigan State University, East Lansing, MI 48824, USA, (A.A.)
- Department of Pediatrics, College of Osteopathic Medicine, Michigan State University, East Lansing, MI 48824, USA
| | - Yasser A. Aldhamen
- Department of Microbiology and Molecular Genetics, College of Osteopathic Medicine, Michigan State University, East Lansing, MI 48824, USA, (A.A.)
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22
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Song F, Chen GL, Lu KC, Fan JQ, Yan MT, He HH, Lian YY, Zhang CZ, Chen YH. Identification and functional characterization of a C-type lectin gene from Litopenaeus vannamei that is associated with ER-stress response. FISH & SHELLFISH IMMUNOLOGY 2019; 93:977-985. [PMID: 31449979 DOI: 10.1016/j.fsi.2019.08.056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 08/17/2019] [Accepted: 08/22/2019] [Indexed: 06/10/2023]
Abstract
C-type lectins (CTLs), which bind carbohydrates in a Ca2+-dependent manner, are involved in many cellular activities, especially immunity. CTLs play important roles in both the antibacterial and the antiviral immune response and are also associated with autoimmunity. Several CTLs have been investigated in crustaceans, primarily with respect to their function in the immune response. In this study, we cloned a novel CTL gene (LvCTLU) from Litopenaeus vannamei. LvCTLU is involved in microbe agglutination and phagocytosis. Downregulating LvCTLU increased the cumulative mortality of L. vannamei after Vibrio parahemolyticus infection. Similar to other reported CTLs, LvCTLU also had antiviral properties. Downregulation of LvCTLU also increased the cumulative mortality of L. vannamei after infection with white spot syndrome virus. More importantly, LvCTLU expression was induced by the unfolded protein response (UPR), which is the key pathway in the endoplasmic reticulum (ER)-stress response of eukaryotic organism. Our results suggested that this protein might be involved in the shrimp ER-stress response. Reporter gene assay indicated that LvCTLU was regulated by X-box-binding protein 1, which is the key transcription factor in the UPR. Our study thus revealed that LvCTLU plays vital roles in both the anti-pathogen immune response and the ER-stress response.
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Affiliation(s)
- Fei Song
- Institute of Modern Aquaculture Science and Engineering (IMASE), Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, PR China
| | - Guo-Liang Chen
- Institute of Modern Aquaculture Science and Engineering (IMASE), Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, PR China
| | - Ke-Cheng Lu
- Institute of Modern Aquaculture Science and Engineering (IMASE), Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, PR China
| | - Jin-Quan Fan
- Institute of Modern Aquaculture Science and Engineering (IMASE), Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, PR China
| | - Mu-Ting Yan
- College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China
| | - Hong-Hui He
- State Key Laboratory for Biocontro, School of Life Sciences, Sun Yat-sen University, 135 Xingang Road West, Guangzhou, 510275, PR China
| | - Yu-Ying Lian
- State Key Laboratory for Biocontro, School of Life Sciences, Sun Yat-sen University, 135 Xingang Road West, Guangzhou, 510275, PR China
| | - Chao-Zheng Zhang
- Guangdong Provincial Center for Disease Control and Prevention, 160 QunXian Road, Guangzhou, 511430, PR China
| | - Yi-Hong Chen
- Institute of Modern Aquaculture Science and Engineering (IMASE), Guangzhou Key Laboratory of Subtropical Biodiversity and Biomonitoring, Guangdong Provincial Key Laboratory for Healthy and Safe Aquaculture, College of Life Science, South China Normal University, Guangzhou, 510631, PR China.
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23
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Fourcade L, Sabourin-Poirier C, Perraud V, Faucher MC, Chagnon-Choquet J, Labbé AC, Alary M, Guédou F, Poudrier J, Roger M. Natural Immunity to HIV is associated with Low BLyS/BAFF levels and low frequencies of innate marginal zone like CD1c+ B-cells in the genital tract. PLoS Pathog 2019; 15:e1007840. [PMID: 31173604 PMCID: PMC6583986 DOI: 10.1371/journal.ppat.1007840] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 06/19/2019] [Accepted: 05/14/2019] [Indexed: 12/29/2022] Open
Abstract
BLyS/BAFF is recognized for its role in B-cell ontogenesis, as well as cell fate decision towards the first-line/innate marginal zone (MZ) B-cell pool. Excess BLyS/BAFF is associated with hyperglobulinemia and increased frequencies of activated precursor-like MZ B-cells. Herein, we show that HIV highly-exposed seronegative (HESN) commercial sex workers (CSWs) had lower soluble BLyS/BAFF levels and relative frequencies of BLyS/BAFF expressing cells in their genital mucosa when compared to those from HIV-infected CSWs and HIV-uninfected non-CSWs. Furthermore, we identified genital innate and/or marginal zone (MZ)-like CD1c+ B-cells that naturally bind to fully glycosylated gp120, which frequencies were lower in HESNs when compared to HIV-infected CSWs and HIV-uninfected non-CSWs. Although genital levels of total IgA were similar between groups, HESNs had lower levels of total IgG1 and IgG3. Interestingly, HIV-gp41 reactive IgG1 were found in some HESNs. Low genital levels of BLyS/BAFF observed in HESNs may allow for controlled first-line responses, contributing to natural immunity to HIV. Worldwide, most human immunodeficiency virus (HIV) infections affect women through heterosexual intercourse. We and others have identified African female commercial sex workers (CSWs), who remain seronegative despite high exposition to HIV (HESNs). Innate marginal zone (MZ) B-cells recirculate in humans and have been found in front-line areas such as the sub-epithelial lamina propria of mucosal associated lymphoid tissues. MZ B-cells can bind to fully glycosylated gp120 and produce specific IgG and IgA, and have a propensity for B regulatory potential, which could help both the fight against HIV and maintenance of low inflammatory conditions reported for HESNs. Here we identify genital MZ-like B-cells, which frequencies are lower in the genital tract of HESNs when compared to HIV-infected CSWs and HIV-uninfected non-CSW women. Furthermore, this coincides with significantly lower genital levels of B lymphocyte stimulator (BLyS/BAFF), known to shape the MZ pool and which overexpression leads to MZ deregulation in HIV-infected progressors. HESN individuals provide an exceptional opportunity to determine important clues for the development of protective devices. Here we show that contained BLyS/BAFF levels are concomitant with natural immunity against HIV, and may prevent dysregulated first-line responses. MZ-like B-cells could be harnessed in preventive strategies viewed at soliciting quick first-line to be adjunct to matured long term protection.
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Affiliation(s)
- Lyvia Fourcade
- Laboratoire d’Immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, Canada
| | - Catherine Sabourin-Poirier
- Laboratoire d’Immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, Canada
| | - Victoire Perraud
- Laboratoire d’Immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, Canada
| | - Marie-Claude Faucher
- Laboratoire d’Immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
| | - Josiane Chagnon-Choquet
- Laboratoire d’Immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
| | - Annie-Claude Labbé
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, Canada
- Département de Microbiologie Médicale et Infectiologie, Hôpital Maisonneuve-Rosemont, Montréal, Canada
| | - Michel Alary
- Centre de recherche du CHU de Québec–Université Laval, Québec, Canada
- Département de Médecine Sociale et Préventive, Université Laval, Québec, Canada
- Institut National de Santé Publique du Québec, Québec, Canada
| | | | - Johanne Poudrier
- Laboratoire d’Immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, Canada
- * E-mail: (JP); (MR)
| | - Michel Roger
- Laboratoire d’Immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l‘Université de Montréal, Montréal, Canada
- * E-mail: (JP); (MR)
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24
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Bordet E, Frétaud M, Crisci E, Bouguyon E, Rault S, Pezant J, Pleau A, Renson P, Giuffra E, Larcher T, Bourge M, Bourry O, Boulesteix O, Langevin C, Schwartz-Cornil I, Bertho N. Macrophage-B Cell Interactions in the Inverted Porcine Lymph Node and Their Response to Porcine Reproductive and Respiratory Syndrome Virus. Front Immunol 2019; 10:953. [PMID: 31130951 PMCID: PMC6510060 DOI: 10.3389/fimmu.2019.00953] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 04/12/2019] [Indexed: 12/14/2022] Open
Abstract
Swine lymph nodes (LN) present an inverted structure compared to mouse and human, with the afferent lymph diffusing from the center to the periphery. This structure, also observed in close and distant species such as dolphins, hippopotamus, rhinoceros, and elephants, is poorly described, nor are the LN macrophage populations and their relationship with B cell follicles. B cell maturation occurs mainly in LN B cell follicles with the help of LN macrophage populations endowed with different antigen delivery capacities. We identified three macrophage populations that we localized in the inverted LN spatial organization. This allowed us to ascribe porcine LN MΦ to their murine counterparts: subcapsular sinus MΦ, medullary cord MΦ and medullary sinus MΦ. We identified the different intra and extrafollicular stages of LN B cells maturation and explored the interaction of MΦ, drained antigen and follicular B cells. The porcine reproductive and respiratory syndrome virus (PRRSV) is a major porcine pathogen that infects tissue macrophages (MΦ). PRRSV is persistent in the secondary lymphoid tissues and induces a delay in neutralizing antibodies appearance. We observed PRRSV interaction with two LN MΦ populations, of which one interacts closely with centroblasts. We observed BCL6 up-regulation in centroblast upon PRRSV infection, leading to new hypothesis on PRRSV inhibition of B cell maturation. This seminal study of porcine LN will permit fruitful comparison with murine and human LN for a better understanding of normal and inverted LN development and functioning.
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Affiliation(s)
- Elise Bordet
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Maxence Frétaud
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France.,INRA, EMERG'IN- Plateforme d'Infectiologie Expérimentale IERP- Domaine de Vilvert, Jouy-en-Josas, France
| | - Elisa Crisci
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France.,UMR Génétique Animale et Biologie Intégrative, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France.,Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
| | - Edwige Bouguyon
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Stéphane Rault
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France
| | - Jérémy Pezant
- INRA, UE1277, Plate-Forme d'Infectiologie Expérimentale, PFIE, Nouzilly, France
| | - Alexis Pleau
- INRA, UE1277, Plate-Forme d'Infectiologie Expérimentale, PFIE, Nouzilly, France
| | - Patricia Renson
- Anses, Laboratoire de Ploufragan-Plouzané-Niort, Unité Virologie et Immunologie Porcines, Zoopôle, BP53, Ploufragan, France.,Université Bretagne Loire, Cité Internationale, Rennes, France
| | - Elisabetta Giuffra
- UMR Génétique Animale et Biologie Intégrative, INRA, AgroParisTech, Université Paris-Saclay, Jouy-en-Josas, France
| | | | - Mickael Bourge
- I2BC, Centre National de la Recherche Scientifique, Gif-sur-Yvette, France
| | - Olivier Bourry
- Anses, Laboratoire de Ploufragan-Plouzané-Niort, Unité Virologie et Immunologie Porcines, Zoopôle, BP53, Ploufragan, France.,Université Bretagne Loire, Cité Internationale, Rennes, France
| | - Olivier Boulesteix
- INRA, UE1277, Plate-Forme d'Infectiologie Expérimentale, PFIE, Nouzilly, France
| | - Christelle Langevin
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France.,INRA, EMERG'IN- Plateforme d'Infectiologie Expérimentale IERP- Domaine de Vilvert, Jouy-en-Josas, France
| | | | - Nicolas Bertho
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, Jouy-en-Josas, France.,BIOEPAR, INRA, Oniris, Nantes, France
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25
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Heß R, Storcksdieck Genannt Bonsmann M, Lapuente D, Maaske A, Kirschning C, Ruland J, Lepenies B, Hannaman D, Tenbusch M, Überla K. Glycosylation of HIV Env Impacts IgG Subtype Responses to Vaccination. Viruses 2019; 11:v11020153. [PMID: 30781796 PMCID: PMC6410111 DOI: 10.3390/v11020153] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 02/06/2019] [Accepted: 02/10/2019] [Indexed: 12/22/2022] Open
Abstract
The envelope protein (Env) is the only surface protein of the human immunodeficiency virus (HIV) and as such the exclusive target for protective antibody responses. Experimental evidences from mouse models suggest a modulating property of Env to steer antibody class switching towards the less effective antibody subclass IgG1 accompanied with strong TH2 helper responses. By simple physical linkage we were able to imprint this bias, exemplified by a low IgG2a/IgG1 ratio of antigen-specific antibodies, onto an unrelated antigen, namely the HIV capsid protein p24. Here, our results indicate the glycan moiety of Env as the responsible immune modulating activity. Firstly, in Card9−/− mice lacking specific C-Type lectin responsiveness, DNA immunization significantly increased the IgG2a/IgG1 ratio for the Env-specific antibodies while the antibody response against the F-protein of the respiratory syncytial virus (RSV) serving as control antigen remained unchanged. Secondly, sequential shortening of the Env encoding sequence revealed the C2V3 domain as responsible for the strong IgG1 responses and TH2 cytokine production. Removing all potential N-glycosylation sites from the C2V3 domain by site-specific mutagenesis reversed the vaccine-induced immune response towards a Th1-dominated T-cell response and a balanced IgG2a/IgG1 ratio. Accordingly, the stretch of oligomannose glycans in the C2V3 domain of Env might mediate a specific uptake and/or signaling modus in antigen presenting cells by involving interaction with an as yet unknown C-type lectin receptor. Our results contribute to a deeper understanding of the impact of Env glycosylation on HIV antigen-specific immune responses, which will further support HIV vaccine development.
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Affiliation(s)
- Rebecca Heß
- Department of Molecular and Medical Virology, Ruhr-University Bochum, 44801 Bochum, Germany.
| | | | - Dennis Lapuente
- Department of Molecular and Medical Virology, Ruhr-University Bochum, 44801 Bochum, Germany.
- Institute of Clinical and Molecular Virology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Germany; Medical Immunology Campus Erlangen, FAU Erlangen-Nürnberg, 91054 Erlangen, Germany.
| | - Andre Maaske
- Department of Molecular and Medical Virology, Ruhr-University Bochum, 44801 Bochum, Germany.
| | - Carsten Kirschning
- Institute of Medical Microbiology, University Hospital Essen, University Duisburg-Essen, 45122 Essen, Germany.
| | - Jürgen Ruland
- Institut für Klinische Chemie und Pathobiochemie, Klinikum rechts der Isar, Technische Universität München, 81675 München, Germany.
| | - Bernd Lepenies
- Immunology Unit & Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine (TiHo) Hannover, 30559 Hannover, Germany.
| | - Drew Hannaman
- Ichor Medical Systems, Inc., San Diego, CA 92121, USA.
| | - Matthias Tenbusch
- Institute of Clinical and Molecular Virology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Germany; Medical Immunology Campus Erlangen, FAU Erlangen-Nürnberg, 91054 Erlangen, Germany.
| | - Klaus Überla
- Institute of Clinical and Molecular Virology, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Germany; Medical Immunology Campus Erlangen, FAU Erlangen-Nürnberg, 91054 Erlangen, Germany.
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26
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Yuan L, Chen WJ, Wang JY, Li Y, Tian D, Wang MX, Yu HT, Xu YC, Li D, Zhuang M, Ling H. Divergent Primary Immune Responses Induced by Human Immunodeficiency Virus-1 gp120 and Hepatitis B Surface Antigen Determine Antibody Recall Responses. Virol Sin 2018; 33:502-514. [PMID: 30569292 PMCID: PMC6335216 DOI: 10.1007/s12250-018-0074-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 11/07/2018] [Indexed: 12/19/2022] Open
Abstract
The development of a vaccine based on human immunodeficiency virus type 1 (HIV-1) envelope glycoprotein (Env) that elicits potent protective antibodies against infection has been challenging. Recently, we compared the antibody production patterns of HIV-1 Env gp120 and hepatitis B virus surface antigen (HBsAg) to provide insights into how we may improve the protective efficacy of Env-based immunogens. Our previous study showed that HIV Env and HBsAg display different mechanisms of antibody elicitation and that T cells facilitate the responses to repeated immunizations. Here, to elucidate the detailed roles of primary immunization in immune memory response formation and antibody production, we immunized C57BL/6 mice with each antigen and evaluated the development of T follicular helper (Tfh) cells, germinal centers, and the memory responses involved in prime and boost immunizations. We found that after prime immunization, compared with HBsAg, gp120 induced higher frequencies of Tfh cells and programmed death (PD)-1+ T cells, greater major histocompatibility complex II expression on B cells, comparable activated B cells, but weaker germinal center (GC) reactions and memory B cell responses in the draining lymph nodes, accompanied by slower antibody recall responses and poor immune memory responses. The above results suggested that more PD-1+ T cells arising in primary immunization may serve as major contributors to the slow antibody recall response elicited by HIV-1 Env.
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Affiliation(s)
- Li Yuan
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China
| | - Wen-Jiang Chen
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China
| | - Jia-Ye Wang
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China.,Heilongjiang Provincial Key Laboratory of Infection and Immunity, Key Laboratory of Pathogen Biology, Harbin, 150081, China.,Wu Lien-Teh Institute, Harbin Medical University, Harbin, 150081, China
| | - Yan Li
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China.,Heilongjiang Provincial Key Laboratory of Infection and Immunity, Key Laboratory of Pathogen Biology, Harbin, 150081, China.,Wu Lien-Teh Institute, Harbin Medical University, Harbin, 150081, China
| | - Dan Tian
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China
| | - Ming-Xia Wang
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China
| | - Hao-Tong Yu
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China
| | - Ying-Chu Xu
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China
| | - Di Li
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China.,Heilongjiang Provincial Key Laboratory of Infection and Immunity, Key Laboratory of Pathogen Biology, Harbin, 150081, China.,Wu Lien-Teh Institute, Harbin Medical University, Harbin, 150081, China
| | - Min Zhuang
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China.,Heilongjiang Provincial Key Laboratory of Infection and Immunity, Key Laboratory of Pathogen Biology, Harbin, 150081, China.,Wu Lien-Teh Institute, Harbin Medical University, Harbin, 150081, China
| | - Hong Ling
- Department of Microbiology, Harbin Medical University, Harbin, 150081, China. .,Heilongjiang Provincial Key Laboratory of Infection and Immunity, Key Laboratory of Pathogen Biology, Harbin, 150081, China. .,Wu Lien-Teh Institute, Harbin Medical University, Harbin, 150081, China. .,Department of Immunology, Harbin Medical University, Harbin, 150081, China.
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27
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Nicholson LK, Pratap H, Bowers E, Gunzburger E, Bandi SR, Gardner EM, Palmer BE, Wright T, Kittelson J, Janoff EN. Effective B cell activation in vitro during viremic HIV-1 infection with surrogate T cell stimulation. Immunobiology 2018; 223:839-849. [PMID: 30219203 PMCID: PMC6264910 DOI: 10.1016/j.imbio.2018.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 08/09/2018] [Accepted: 08/19/2018] [Indexed: 02/07/2023]
Abstract
Identifying HIV-1-associated B cell defects and responses to activation may direct interventions to circumvent their impaired antibody responses to infection and vaccines. Among 34 viremic HIV-1-infected and 20 seronegative control adults, we measured baseline frequencies and activation of B and T cell subsets, expression of activation-induced cytidine deaminase (AID), potential determinants of B cell activation in vivo and B and T cell responses in vitro. At baseline, HIV-1 infection was associated with increased IgM memory and decreased anergic cell frequencies, as well as increased activation in all 10 B cell subsets compared with controls. HIV-1 status, TFH activation, and BAFF were significant potential drivers of B cell activation. Despite high baseline activation among HIV-1-infected subjects, stimulation in vitro with combined surrogates for antigen (anti-IgM), cognate (CD40 ligand) and soluble T cell factors (IL-4) elicited comparable B cell activation, transitions from naïve to class-switched memory cells and AID expression in both groups. In summary, viremic HIV-1 infection perturbs circulating B cell subsets and activation at each stage of B cell maturation. However, that appropriate stimulation of B cells elicits effective activation and maturation provides impetus for advancing vaccine development to prevent secondary infections by circumventing early B cell defects.
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Affiliation(s)
- Lindsay K Nicholson
- Mucosal and Vaccine Research Program Colorado (MAVRC), United States; Departments of Medicine, University of Colorado Denver, Aurora, CO, United States; Denver Veterans Affairs Medical Center, Denver, CO, United States
| | - Harsh Pratap
- Mucosal and Vaccine Research Program Colorado (MAVRC), United States; Departments of Medicine, University of Colorado Denver, Aurora, CO, United States; Denver Veterans Affairs Medical Center, Denver, CO, United States
| | - Elisabeth Bowers
- Mucosal and Vaccine Research Program Colorado (MAVRC), United States; Departments of Medicine, University of Colorado Denver, Aurora, CO, United States; Denver Veterans Affairs Medical Center, Denver, CO, United States
| | - Elise Gunzburger
- Departments of Biostatistics, University of Colorado Denver, Aurora, CO, United States
| | - Srinivasa R Bandi
- Mucosal and Vaccine Research Program Colorado (MAVRC), United States; Departments of Medicine, University of Colorado Denver, Aurora, CO, United States
| | - Edward M Gardner
- Departments of Medicine, University of Colorado Denver, Aurora, CO, United States; Denver Health and Hospital Authority, Denver, CO, United States
| | - Brent E Palmer
- Mucosal and Vaccine Research Program Colorado (MAVRC), United States; Departments of Medicine, University of Colorado Denver, Aurora, CO, United States
| | - Timothy Wright
- Denver Health and Hospital Authority, Denver, CO, United States
| | - John Kittelson
- Mucosal and Vaccine Research Program Colorado (MAVRC), United States; Departments of Biostatistics, University of Colorado Denver, Aurora, CO, United States
| | - Edward N Janoff
- Mucosal and Vaccine Research Program Colorado (MAVRC), United States; Departments of Medicine, University of Colorado Denver, Aurora, CO, United States; Denver Veterans Affairs Medical Center, Denver, CO, United States.
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Fourcade L, Poudrier J, Roger M. Natural Immunity to HIV: A Template for Vaccine Strategies. Viruses 2018; 10:v10040215. [PMID: 29690575 PMCID: PMC5923509 DOI: 10.3390/v10040215] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 04/19/2018] [Accepted: 04/21/2018] [Indexed: 12/13/2022] Open
Abstract
Africa accounts for the majority of global human immunodeficiency virus (HIV) infections, most of which affect women through heterosexual intercourse. Currently, there is no cure for HIV and the development of vaccines and microbicides remains the best solution to eradicate the pandemic. We and others have identified HIV highly-exposed seronegative (HESN) individuals among African female commercial sex workers (CSWs). Analyses of genital samples from HESNs have demonstrated potent innate and anti-inflammatory conditions, HIV-specific CD4+ and CD8+ T-cells as well as immunoglobulins (Igs), and increased regulatory cell populations, all of which support a delicate balance between strength and control against HIV intrusion. Moreover, we have recently shown that frequencies of innate marginal zone (MZ) B-cells are decreased in the blood of HESNs when compared to HIV-uninfected non-CSW women, suggesting their recruitment to peripheral sites. This coincides with the fact that levels of B lymphocyte stimulator (BLyS/BAFF), known to shape the MZ pool and whose overexpression leads to MZ deregulation in HIV-infected progressors, are significantly lower in the blood of HESNs when compared to both HIV-infected CSWs and HIV-uninfected non-CSW women. Interestingly, MZ B-cells can bind HIV gp120 and produce specific IgG and IgA, and have a propensity for B regulatory potential, which could help both the fight against HIV and maintenance of low inflammatory conditions in HESNs. HESN individuals provide an exceptional opportunity to identify important clues for the development of protective devices, and efforts should aim at soliciting immune responses observed in the context of their natural immunity to HIV.
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Affiliation(s)
- Lyvia Fourcade
- Laboratoire d'Immunogénétique, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada.
- Département de Microbiologie, Infectiologie et Immunologie de l'Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Johanne Poudrier
- Laboratoire d'Immunogénétique, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada.
- Département de Microbiologie, Infectiologie et Immunologie de l'Université de Montréal, Montréal, QC H3C 3J7, Canada.
| | - Michel Roger
- Laboratoire d'Immunogénétique, Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada.
- Département de Microbiologie, Infectiologie et Immunologie de l'Université de Montréal, Montréal, QC H3C 3J7, Canada.
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Abstract
OBJECTIVE To characterize the effect of the HIV-1 infection and antiretroviral treatment (ART) in the human memory B (MEB)-cell compartment. DESIGN A cross-sectional study was designed to analyze MEB cells of HIV-1 ART treated and ART-naive study participants, and uninfected individuals. METHODS Frequency and absolute counts of MEB cell subsets in blood were determined by multicolor flow cytometry. Spontaneous cell death and B-cell proliferative capacity was evaluated in vitro by cell culture and flow cytometry. Splenic function was determined by pitted erythrocytes quantification in HIV-1 ART-treated study participants. RESULTS HIV-1 ART-treated individuals did not show functional hyposplenism despite the lack of recovery IgMIgDCD27 marginal zone-like B cells. Moreover, two germinal center-dependent MEB cells subsets were also dysregulated in HIV-1 individuals: IgMIgDCD27 (IgM only) cells were increased, whereas the switched subset (IgMIgD) was reduced in viremic individuals. Althought ART restored the numbers of these populations; the switched MEB cells were enriched in CD27 cells, which showed the highest susceptibility to spontaneous cell death ex vivo. In addition, B cells from viremic individuals showed a poor response to B-cell receptor and toll-like receptor 9 stimulation that was circumvented when both stimuli were used simultaneously. CONCLUSION B cells from HIV-1 study participants show a poor stimulation capacity, that may be bypassed by the proper combination of stimuli, and a dysregulated MEB cell pool that suggest an affectation of the germinal center reaction, only partially normalized by ART. Interestingly, hyposplenism does not explain the lack of recovery of the marginal zone-like B cells in ART-treated HIV-1 individuals.
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30
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Khoder A, Alsuliman A, Basar R, Sobieski C, Kondo K, Alousi AM, Szydlo R, Muftuoglu M, Shaim H, Apperley JF, Gokdemir E, Cooper N, Mehta RS, Marin D, Champlin R, Shpall E, Rezvani K. Evidence for B Cell Exhaustion in Chronic Graft-versus-Host Disease. Front Immunol 2018; 8:1937. [PMID: 29375566 PMCID: PMC5770573 DOI: 10.3389/fimmu.2017.01937] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 12/15/2017] [Indexed: 12/30/2022] Open
Abstract
Chronic graft-versus-host disease (cGvHD) remains a major complication of allogeneic hematopoietic stem cell transplantation (HSCT). A number of studies support a role for B cells in the pathogenesis of cGvHD. In this study, we report the presence of an expanded population of CD19+CD21- B cells with features of exhaustion in the peripheral blood of patients with cGvHD. CD21- B cells were significantly increased in patients with active cGvHD compared to patients without cGvHD and healthy controls (median 12.2 versus 2.12 versus 3%, respectively; p < 0.01). Compared with naïve (CD27-CD21+) and classical memory (CD27+CD21+) B cells, CD19+CD21- B cells in cGvHD were CD10 negative, CD27 negative and CD20hi, and exhibited features of exhaustion, including increased expression of multiple inhibitory receptors such as FCRL4, CD22, CD85J, and altered expression of chemokine and adhesion molecules such as CD11c, CXCR3, CCR7, and CD62L. Moreover, CD21- B cells in cGvHD patients were functionally exhausted and displayed poor proliferative response and calcium mobilization in response to B-cell receptor triggering and CD40 ligation. Finally, the frequencies of circulating CD21- B cells correlated with cGvHD severity in patients after HSCT. Our study further characterizes B cells in chronic cGVHD and supports the use of CD21-CD27-CD10- B cell frequencies as a biomarker of disease severity.
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Affiliation(s)
- Ahmad Khoder
- Department of Haematology, Imperial College London, London, United Kingdom
| | - Abdullah Alsuliman
- Department of Haematology, Imperial College London, London, United Kingdom
| | - Rafet Basar
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Catherine Sobieski
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Kayo Kondo
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Amin Majid Alousi
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Richard Szydlo
- Department of Haematology, Imperial College London, London, United Kingdom
| | - Muharrem Muftuoglu
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Hila Shaim
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Jane F Apperley
- Department of Haematology, Imperial College London, London, United Kingdom
| | - Elif Gokdemir
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Nichola Cooper
- Department of Haematology, Imperial College London, London, United Kingdom
| | - Rohtesh S Mehta
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - David Marin
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Richard Champlin
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Elizabeth Shpall
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Katayoun Rezvani
- Stem Cell Transplantation and Cellular Therapy, University of Texas MD Anderson Cancer Center, Houston, TX, United States
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31
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Kuka M, Iannacone M. Viral subversion of B cell responses within secondary lymphoid organs. Nat Rev Immunol 2017; 18:255-265. [PMID: 29249807 DOI: 10.1038/nri.2017.133] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Antibodies play a crucial role in virus control. The production of antibodies requires virus-specific B cells to encounter viral antigens in lymph nodes, become activated, interact with different immune cells, proliferate and enter specific differentiation programmes. Each step occurs in distinct lymph node niches, requiring a coordinated migration of B cells between different subcompartments. The development of multiphoton intravital microscopy has enabled researchers to begin to elucidate the precise cellular and molecular events by which lymph nodes coordinate humoral responses. This Review discusses recent studies that clarify how viruses interfere with antibody responses, highlighting how these mechanisms relate to our topological and temporal understanding of B cell activation within secondary lymphoid organs.
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Affiliation(s)
- Mirela Kuka
- Division of Immunology, Transplantation and Infectious Diseases and Experimental Imaging Center, IRCCS San Raffaele Scientific Institute and Vita-Salute San Raffaele University, Via Olgettina 58, Milan 20132, Italy
| | - Matteo Iannacone
- Division of Immunology, Transplantation and Infectious Diseases and Experimental Imaging Center, IRCCS San Raffaele Scientific Institute and Vita-Salute San Raffaele University, Via Olgettina 58, Milan 20132, Italy
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32
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Borhis G, Trovato M, Chaoul N, Ibrahim HM, Richard Y. B-Cell-Activating Factor and the B-Cell Compartment in HIV/SIV Infection. Front Immunol 2017; 8:1338. [PMID: 29163465 PMCID: PMC5663724 DOI: 10.3389/fimmu.2017.01338] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 10/03/2017] [Indexed: 12/12/2022] Open
Abstract
With the goal to design effective HIV vaccines, intensive studies focused on broadly neutralizing antibodies, which arise in a fraction of HIV-infected people. Apart from identifying new vulnerability sites in the viral envelope proteins, these studies have shown that a fraction of these antibodies are produced by self/poly-reactive B-cells. These findings prompted us to revisit the B-cell differentiation and selection process during HIV/SIV infection and to consider B-cells as active players possibly shaping the helper T-cell program within germinal centers (GCs). In this context, we paid a particular attention to B-cell-activating factor (BAFF), a key cytokine in B-cell development and immune response that is overproduced during HIV/SIV infection. As it does in autoimmune diseases, BAFF excess might contribute to the abnormal rescue of self-reactive B-cells at several checkpoints of the B-cell development and impair memory B-cell generation and functions. In this review, we first point out what is known about the functions of BAFF/a proliferation-inducing ligand and their receptors [B-cell maturation, transmembrane activator and CAML interactor (TACI), and BAFF-R], in physiological and pathophysiological settings, in mice and humans. In particular, we highlight recent results on the previously underappreciated regulatory functions of TACI and on the highly regulated production of soluble TACI and BAFF-R that act as decoy receptors. In light of recent data on BAFF, TACI, and BAFF-R, we then revisit the altered phenotypes and functions of B-cell subsets during the acute and chronic phase of HIV/SIV infection. Given the atypical phenotype and reduced functions of memory B-cells in HIV/SIV infection, we particularly discuss the GC reaction, a key checkpoint where self-reactive B-cells are eliminated and pathogen-specific memory B-cells and plasmablasts/cells are generated in physiological settings. Through its capacity to differentially bind and process BAFF-R and TACI on GC B-cells and possibly on follicular helper T-cells, BAFF appears as a key regulator of the physiological GC reaction. Its local excess during HIV/SIV infection could play a key role in B-cell dysregulations.
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Affiliation(s)
- Gwenoline Borhis
- INSERM u1016, Institut Cochin, Paris, France
- CNRS UMR 8104, Paris, France
- Université Paris-Descartes, Paris, France
| | - Maria Trovato
- INSERM u1016, Institut Cochin, Paris, France
- CNRS UMR 8104, Paris, France
- Université Paris-Descartes, Paris, France
| | - Nada Chaoul
- Commissariat à l’Energie Atomique, Institut des maladies Emergentes et Thérapies innovantes, Service d’Immuno-Virologie, Fontenay-aux Roses, France
| | - Hany M. Ibrahim
- INSERM u1016, Institut Cochin, Paris, France
- CNRS UMR 8104, Paris, France
- Université Paris-Descartes, Paris, France
| | - Yolande Richard
- INSERM u1016, Institut Cochin, Paris, France
- CNRS UMR 8104, Paris, France
- Université Paris-Descartes, Paris, France
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Abstract
The two ligands B cell-activating factor of the tumor necrosis factor family (BAFF) and a proliferation-inducing ligand (APRIL) and the three receptors BAFF receptor (BAFF-R), transmembrane activator and calcium-modulating cyclophilin ligand interactor (TACI), and B cell maturation antigen (BCMA) are members of the "BAFF system molecules." BAFF system molecules are primarily involved in B cell homeostasis. The relevance of BAFF system molecules in host responses to microbial assaults has been investigated in clinical studies and in mice deficient for each of these molecules. Many microbial products modulate the expression of these molecules. Data from clinical studies suggest a correlation between increased expression levels of BAFF system molecules and elevated B cell responses. Depending on the pathogen, heightened B cell responses may strengthen the host response or promote susceptibility. Whereas pathogen-mediated increases in the expression levels of the ligands and/or the receptors appear to promote microbial clearance, certain pathogens have evolved to ablate B cell responses by suppressing the expression of TACI and/or BAFF-R on B cells. Other than its well-established role in B cell responses, the TACI-mediated activation of macrophages is also implicated in resistance to intracellular pathogens. An improved understanding of the role that BAFF system molecules play in infection may assist in devising novel strategies for vaccine development.
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Affiliation(s)
- Jiro Sakai
- Laboratory of Bacterial Polysaccharides, Division of Bacterial Parasitic and Allergenic Products, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Mustafa Akkoyunlu
- Laboratory of Bacterial Polysaccharides, Division of Bacterial Parasitic and Allergenic Products, Center for Biologics Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
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Human immunodeficiency virus type-1 induces a regulatory B cell-like phenotype in vitro. Cell Mol Immunol 2017; 15:917-933. [PMID: 28713164 DOI: 10.1038/cmi.2017.48] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 05/26/2017] [Accepted: 05/26/2017] [Indexed: 12/14/2022] Open
Abstract
Individuals infected with human immunodeficiency virus type-1 (HIV-1) usually show a general dysregulation and hyper-activation of the immune system. A direct influence of HIV-1 particles on B-cell phenotypes and functions has been previously described. However, the consequences of B-cell dysregulation are still poorly understood. We evaluated the phenotypic changes in primary B cells after direct contact with HIV-1 particles in comparison with different types of stimuli. The functionality of treated B cells was challenged in co-culture experiments with autologous CD4+ and CD8+ T cells. We demonstrated that HIV-1 induces a phenotypic change in B cells towards a regulatory B-cell phenotype, showing a higher level of IL-10, TGF-β1, EBI3 or IL-12(p35) mRNA expression and acquiring an immunosuppressive profile. The acquisition of a Breg phenotype was confirmed by co-culture experiments where HIV-treated B cells reduced the proliferation and the TNFα production of CD4+ or CD8+ T cells. This suppressive ability of HIV-treated B cells was dependent on cell-to-cell contact between these B cells and effector cells. To our knowledge, these data provide the first evidence that HIV-1 can directly induce a regulatory B cell-like immunosuppressive phenotype, which could have the ability to impair specific immune responses. This dysregulation could constitute one of the mechanisms underlying unsuccessful efforts to develop an efficient vaccine against HIV-1.
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35
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Preservation of Peripheral T Follicular Helper Cell Function in HIV Controllers. J Virol 2017; 91:JVI.00497-17. [PMID: 28468877 DOI: 10.1128/jvi.00497-17] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 04/24/2017] [Indexed: 02/06/2023] Open
Abstract
The maturation process of high-affinity antibodies is a result of intricate interactions between B cells and follicular helper T (Tfh) cells occurring in lymphoid germinal centers. HIV infection induces significant chronic immune activation, phenotypic skewing, and inflammation driven by years of continuous viral replication. High levels of viremia as well as immune activation and dysfunction have been demonstrated to have a perturbing impact on the B cell memory compartment and contribute to B cell exhaustion. Counterintuitively, the factors associated with perturbation of the B cell compartment seem to be favorable for the generation of highly affinity-matured Env-specific antibodies in a minority of HIV-infected individuals. Thus, the impact of HIV antigenemia on B cells and Tfh cell interactions warrants further exploration. We therefore studied immunophenotypes of HIV-specific B cells in individuals with differing levels of viral control using HIV Env gp120 probes and characterized the functionality of matched T cells in peripheral blood. While CXCR5+ CD4+ T cells were significantly diminished in HIV progressors, we found that a small subset of gp120-specific interleukin-21 (IL-21)-secreting CXCR5+ CD4+ T cells were significantly associated with gp120-specific B cell frequencies. In contrast, neither bulk CXCR5+ CD4+ T cells nor other HIV antigen specificities were associated with gp120-specific B cell levels. HIV-specific B cells derived from elite controllers displayed greater amounts of gp120-specific B cells in the resting memory subset, whereas HIV-specific B cells in progressors accumulated in tissue-like and activated memory subsets. Furthermore, CXCR5+ CD4+ T cells from elite controllers showed a stronger ex vivo capacity to induce B cell maturation and immunoglobulin class switching than cells from HIV progressors.IMPORTANCE Dissecting the factors that are involved in B cell maturation and antibody development is important for HIV vaccine design. In this study, we found that HIV Env-specific CXCR5+ CD4+ T cells that secrete interleukin-21 are strongly associated with B cell memory phenotypes and function. Moreover, we found that the immune responses of HIV controllers showed intrinsically better helper activity than those of HIV progressors.
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36
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Girard A, Jelicic K, Van Ryk D, Rochereau N, Cicala C, Arthos J, Noailly B, Genin C, Verrier B, Laurant S, Razanajaoana-Doll D, Pin JJ, Paul S. Neutralizing and Targeting Properties of a New Set of α4β7-Specific Antibodies Are Influenced by Their Isotype. J Acquir Immune Defic Syndr 2017; 75:118-127. [PMID: 28177967 DOI: 10.1097/qai.0000000000001307] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The homing of lymphocytes to the mucosa is mainly controlled by α4β7 integrin, and it is amplified during gut chronic inflammation, as occurs with HIV and/or inflammatory bowel diseases. We designed and applied an improved immunization strategy based on an innovative selection process to isolate new α4β7 lymphocyte-specific monoclonal antibodies that are able to prevent their migration into inflamed gut tissues and/or to counteract HIV infection in vitro. First, 5 monoclonal antibodies (1 IgA, 1 IgM, and 4 IgGs) were selected based on their capacity to recognize α4 or β7 homodimers and α4β7 heterodimers in transfected human cells. Their ability to block gp120/α4β7 or MAdCAM-1/α4β7 interactions was then measured in vitro with human T and B lymphocytes. In vitro, the anti-α4β7 IgA isotype was found to have the highest affinity for the α4β7 heterodimer, and it significantly reduced HIV replication in retinoic acid-treated α4β7 CD4 human T cells. This α4β7-specific IgA also displayed a high avidity for human and mouse α4β7 lymphocytes in both mouse and human inflammatory colitis tissues. These new antibodies, and in particular those with mucosa-targeting isotypes such as IgA, could therefore be potential novel therapeutic tools for treating HIV and inflammatory bowel disease.
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Affiliation(s)
- Alexandre Girard
- *GIMAP/EA3064, Université de Lyon, Saint-Etienne, France; †NIH/NIAID Laboratory of Immunoregulation, Bethesda, MD; ‡Institut de Biologie et Chimie des Protéines, FRE3310/CNRS, Universités de Lyon, Lyon, France; and §Dendritics SA, Lyon, France
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37
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Paris RM, Milagres LG, Moysi E, Okulicz JF, Agan BK, Ganesan A, Petrovas C, Koup RA. Lower Baseline Germinal Center Activity and Preserved Th1 Immunity Are Associated With Hepatitis B Vaccine Response in Treated HIV Infection. Pathog Immun 2017; 2:66-88. [PMID: 28580437 PMCID: PMC5450971 DOI: 10.20411/pai.v2i1.175] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Why HIV-infected individuals have poor responses to standard dose and schedule hepatitis B virus immunization is not well understood. METHODS We compared the serologic and cellular immune profiles of treated HIV-infected individuals with similar durations of infection and preserved CD4 counts (> 350 cells/microliter) by hepatitis B vaccine (HBV) response before and after vaccination. RESULTS Similar levels of immune activation and plasma cytokine profile were found between non-responders and responders. The baseline plasma levels of CXCL-13, a surrogate of germinal center reactivity, were significantly lower in HBV responders compared to HBV non-responders and were a predictor of both vaccine response and titer. Furthermore, response to HBV vaccination was associated with a significantly higher frequency of circulating IgGhigh memory B cells post vaccination and preserved Th1 antigen-specific T-cell responses. CONCLUSIONS Taken together, our data suggest that preserved Th1 responses are associated with hepatitis B vaccine response in treated HIV infection.
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Affiliation(s)
- Robert M Paris
- US Military Malaria Research Program, Walter Reed Army Institute of Research, Silver Spring, Maryland.,Immunology Laboratory, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland
| | - Lucimar G Milagres
- Immunology Laboratory, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland.,Department of Microbiology and Immunology, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Eirini Moysi
- Tissue Analysis Core, Immunology Laboratory, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland
| | - Jason F Okulicz
- Infectious Diseases Service and HIV Medical Evaluation Unit, San Antonio Military Medical Center, San Antonio, Texas
| | - Brian K Agan
- Infectious Diseases Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
| | - Anu Ganesan
- Infectious Diseases Clinical Research Program, Department of Preventive Medicine and Biostatistics, Uniformed Services University of the Health Sciences, Bethesda, Maryland.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda, Maryland
| | - Constantinos Petrovas
- Tissue Analysis Core, Immunology Laboratory, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland
| | - Richard A Koup
- Immunology Laboratory, Vaccine Research Center, NIAID, NIH, Bethesda, Maryland
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Murira A, Lamarre A. Type-I Interferon Responses: From Friend to Foe in the Battle against Chronic Viral Infection. Front Immunol 2016; 7:609. [PMID: 28066419 PMCID: PMC5165262 DOI: 10.3389/fimmu.2016.00609] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 12/01/2016] [Indexed: 12/11/2022] Open
Abstract
Type I interferons (IFN-I) have long been heralded as key contributors to effective antiviral responses. More widely understood in the context of acute viral infection, the role of this pleiotropic cytokine has been characterized as triggering antiviral states in cells and potentiating adaptive immune responses. Upon induction in the innate immune response, IFN-I triggers the expression of interferon-stimulated genes (ISGs), which upregulate the effector function of immune cells (e.g., dendritic cells, B cells, and T cells) toward successful resolution of infections. However, emerging lines of evidence reveal that viral persistence in the course of chronic infections could be driven by deleterious immunomodulatory effects upon sustained IFN-I expression. In this setting, elevation of IFN-I and ISGs is directly correlated to viral persistence and elevated viral loads. It is important to note that the correlation among IFN-I expression, ISGs, and viral persistence may be a cause or effect of chronic infection and this is an important distinction to make toward establishing the dichotomous nature of IFN-I responses. The aim of this mini review is to (i) summarize the interaction between IFN-I and downstream effector responses and therefore (ii) delineate the function of this cytokine on positive and negative immunoregulation in chronic infection. This is a significant consideration given the current therapeutic administration of IFN-I in chronic viral infections whose therapeutic significance is projected to continue despite emergence of increasingly efficacious antiviral regimens. Furthermore, elucidation of the interplay between virus and the antiviral response in the context of IFN-I will elucidate avenues toward more effective therapeutic and prophylactic measures against chronic viral infections.
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Affiliation(s)
- Armstrong Murira
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier , Laval, QC , Canada
| | - Alain Lamarre
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier , Laval, QC , Canada
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39
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Daugan M, Murira A, Mindt BC, Germain A, Tarrab E, Lapierre P, Fritz JH, Lamarre A. Type I Interferon Impairs Specific Antibody Responses Early during Establishment of LCMV Infection. Front Immunol 2016; 7:564. [PMID: 27994594 PMCID: PMC5136549 DOI: 10.3389/fimmu.2016.00564] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 11/22/2016] [Indexed: 12/29/2022] Open
Abstract
Elicitation of type I interferon (IFN-I) has been shown to both enhance and impair cell-mediated immune responses in acute and persistent viral infections, respectively. Here, we show that, in addition to its effect on T cells, IFN-I drives impairment of specific antibody responses through interaction with B cells in the acute phase of lymphocytic choriomeningitis virus (LCMV) infection. This impairment was limited to the T cell-dependent B cell response and was associated with disruption of B cell follicles, development of hypergammaglobulinemia (HGG), and expansion of the T follicular helper cell population. Antigen-specific antibody responses were restored by ablation of IFN-I signaling through antibody-mediated IFN-I receptor blockade and B cell-specific IFN-I receptor knockout. Importantly, IFN-I receptor deficiency in B cells also accelerated the development of LCMV neutralizing antibodies and alleviated HGG. These results provide a potential therapeutic target toward efficient treatment measures that limit immunopathology in persistent viral infections.
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Affiliation(s)
- Matthieu Daugan
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, QC, Canada
| | - Armstrong Murira
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, QC, Canada
| | - Barbara C. Mindt
- Complex Traits Group, Department of Microbiology and Immunology, McGill University, Montréal, QC, Canada
| | - Amélie Germain
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, QC, Canada
| | - Esther Tarrab
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, QC, Canada
| | - Pascal Lapierre
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, QC, Canada
| | - Jörg H. Fritz
- Complex Traits Group, Department of Microbiology and Immunology, McGill University, Montréal, QC, Canada
- Complex Traits Group, Department of Physiology, McGill University, Montréal, QC, Canada
| | - Alain Lamarre
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, QC, Canada
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Expression of HIV-1 matrix protein p17 and association with B-cell lymphoma in HIV-1 transgenic mice. Proc Natl Acad Sci U S A 2016; 113:13168-13173. [PMID: 27799525 DOI: 10.1073/pnas.1615258113] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
HIV-1 infection is associated with increased risk for B-cell lymphomas. How HIV infection promotes the development of lymphoma is unclear, but it may involve chronic B-cell activation, inflammation, and/or impaired immunity, possibly leading to a loss of control of oncogenic viruses and reduced tumor immunosurveillance. We hypothesized that HIV structural proteins may contribute to lymphomagenesis directly, because they can persist long term in lymph nodes in the absence of viral replication. The HIV-1 transgenic mouse Tg26 carries a noninfectious HIV-1 provirus lacking part of the gag-pol region, thus constituting a model for studying the effects of viral products in pathogenesis. Approximately 15% of Tg26 mice spontaneously develop leukemia/lymphoma. We investigated which viral proteins are associated with the development of leukemia/lymphoma in the Tg26 mouse model, and performed microarray analysis on RNA from spleen and lymph nodes to identify potential mechanisms of lymphomagenesis. Of the viral proteins examined, only expression of HIV-1 matrix protein p17 was associated with leukemia/lymphoma development and was highly expressed in bone marrow before disease. The tumor cells resembled pro-B cells, and were CD19+IgM-IgD-CD93+CD43+CD21-CD23-VpreB+CXCR4+ Consistent with the pro-B-cell stage of B-cell development, microarray analysis revealed enrichment of transcripts, including Rag1, Rag2, CD93, Vpreb1, Vpreb3, and Igll1 We confirmed RAG1 expression in Tg26 tumors, and hypothesized that HIV-1 matrix protein p17 may directly induce RAG1 in B cells. Stimulation of human activated B cells with p17 enhanced RAG1 expression in three of seven donors, suggesting that intracellular signaling by p17 may lead to genomic instability and transformation.
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Does persistent HIV replication explain continued lymphoma incidence in the era of effective antiretroviral therapy? Curr Opin Virol 2016; 20:71-77. [PMID: 27665065 DOI: 10.1016/j.coviro.2016.09.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 08/30/2016] [Accepted: 09/01/2016] [Indexed: 12/16/2022]
Abstract
Non-Hodgkin lymphomas are highly increased in incidence in individuals infected with HIV, and this continues to be the case in spite of highly effective combined antiretroviral therapy (cART). New evidence has demonstrated that while successful virtual recovery of CD4 counts and elimination of HIV from peripheral blood can be achieved with cART, viral replication can still occur in lymphoid tissues. In addition, recent studies have suggested that adipose tissue provides an additional reservoir for HIV-infected macrophages and T lymphocytes even in the context of successful cART therapy. In this review article, we discuss possible mechanisms leading to the development of lymphoma in the cART era.
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Sabourin-Poirier C, Fourcade L, Chagnon-Choquet J, Labbé AC, Alary M, Guédou F, Poudrier J, Roger M. Blood B Lymphocyte Stimulator (BLyS)/BAFF levels may reflect natural immunity to HIV in highly exposed uninfected Beninese Commercial Sex Workers. Sci Rep 2016; 6:32318. [PMID: 27561453 PMCID: PMC4999816 DOI: 10.1038/srep32318] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 08/02/2016] [Indexed: 02/07/2023] Open
Abstract
We have previously shown that excess B lymphocyte Stimulator (BLyS)/BAFF in plasma and on surface of blood dendritic cells (DC) of HIV-infected progressors coincides with B-cell dysregulations and increased frequencies of "precursor" innate marginal zone (MZ)-like B-cells. In contrast, both blood BLyS levels and frequencies of this population remained unaltered in HIV elite-controllers. Based on these observations, we hypothesized that control of BLyS and innate B-cell status could be associated with natural immunity against HIV infection. Therefore, we assessed blood BLyS levels and B-cell status in HIV highly-exposed commercial sex workers (CSWs) from Benin. We found blood BLyS levels of HIV-uninfected CSWs were lower than those observed in both HIV-infected CSW and HIV-uninfected non-CSW groups. Furthermore, levels of BLyS expression on blood T-cells and monocytes were lower in HIV-uninfected CSWs when compared to HIV-infected CSWs, but higher than those observed for HIV-uninfected non-CSWs. Concomitantly, HIV-infected CSWs presented a dysregulated blood B-cell compartment, characterized by increased total IgG1, increased frequencies of populations presenting immature and/or innate profiles and a higher ratio of IgG(+)/IgA(+) plasmablasts. In contrast, relatively low levels of BLyS in the blood of HIV-uninfected CSWs coincided with a rather preserved B-cell compartment.
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Affiliation(s)
- Catherine Sabourin-Poirier
- Laboratoire d’immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l’Université de Montréal, Montréal, Canada
| | - Lyvia Fourcade
- Laboratoire d’immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l’Université de Montréal, Montréal, Canada
| | - Josiane Chagnon-Choquet
- Laboratoire d’immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l’Université de Montréal, Montréal, Canada
| | - Annie-Claude Labbé
- Département de Microbiologie, Infectiologie et Immunologie de l’Université de Montréal, Montréal, Canada
| | - Michel Alary
- Centre de recherche du CHU de Québec, Québec, Canada
- Département de médecine sociale et préventive, Université Laval, Québec, Canada
| | | | - Johanne Poudrier
- Laboratoire d’immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l’Université de Montréal, Montréal, Canada
| | - Michel Roger
- Laboratoire d’immunogénétique, Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, Canada
- Département de Microbiologie, Infectiologie et Immunologie de l’Université de Montréal, Montréal, Canada
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Wang B, Song B, Oster C, Cao J, Raza A, Wang J. Coexistence of intestinal Kaposi sarcoma and plasmablastic lymphoma in an HIV/AIDS patient: case report and review of the literature. J Gastrointest Oncol 2016; 7:S88-95. [PMID: 27034819 PMCID: PMC4783623 DOI: 10.3978/j.issn.2078-6891.2015.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 01/26/2015] [Indexed: 12/19/2022] Open
Abstract
Human immunodeficiency virus (HIV) infection or acquired immunodeficiency disease (AIDS) is associated with increased risk for various malignancies including Kaposi sarcoma (KS) and lymphoma. We report a rare case of coexistence of KS and plasmablastic lymphoma (PBL) in the gastrointestinal (GI) tract in a HIV/AIDS patient. A brief review of literature is also presented.
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Affiliation(s)
- Bing Wang
- Department of Pathology, Loma Linda University Medical Center, CA 92354, USA
| | - Bingbing Song
- Department of Pathology, Loma Linda University Medical Center, CA 92354, USA
| | - Cyrus Oster
- Department of Pathology, Loma Linda University Medical Center, CA 92354, USA
| | - Jeffery Cao
- Department of Pathology, Loma Linda University Medical Center, CA 92354, USA
| | - Anwar Raza
- Department of Pathology, Loma Linda University Medical Center, CA 92354, USA
| | - Jun Wang
- Department of Pathology, Loma Linda University Medical Center, CA 92354, USA
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Speicher DJ, Ramirez-Amador V, Dittmer DP, Webster-Cyriaque J, Goodman MT, Moscicki AB. Viral infections associated with oral cancers and diseases in the context of HIV: a workshop report. Oral Dis 2016; 22 Suppl 1:181-92. [PMID: 27109286 PMCID: PMC5590239 DOI: 10.1111/odi.12418] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 09/25/2015] [Accepted: 12/09/2015] [Indexed: 12/11/2022]
Abstract
Human herpesviruses (HHVs) and human papillomavirus (HPV) are common in the general population and, in immunocompetent people, are mostly carried asymptomatically. However, once an individual becomes immunocompromised by age, illness or HIV infection these dormant viruses can manifest and produce disease. In HIV-positive patients, there is an increased risk of disease caused by HHVs and HPV infections and cancers caused by the oncoviruses Epstein-Barr Virus, HHV-8 and HPV. This workshop examined four questions regarding the viruses associated with oral cancers and disease in the HIV-positive and -negative populations, the immune response, and biomarkers useful for accurate diagnostics of these infections and their sequalae. Each presenter identified a number of key areas where further research is required.
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Affiliation(s)
- D J Speicher
- Molecular Basis of Disease Research Program, Menzies Health Institute Queensland, Griffith University, Gold Coast, Queensland, Australia
| | - V Ramirez-Amador
- Health Care Department, Universidad Autónoma Metropolitana-Xochimilco, México City, Mexico
| | - D P Dittmer
- Department of Microbiology and Immunology School of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
| | - J Webster-Cyriaque
- Department of Microbiology and Immunology School of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
- Department of Dental Ecology, School of Dentistry, University of North Carolina, Chapel Hill, North Carolina, USA
| | - M T Goodman
- Cancer Prevention and Control, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - A-B Moscicki
- David Geffen, School of Medicine, University of California-Los Angeles, Los Angeles, California, USA
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Gomez AM, Ouellet M, Deshiere A, Breton Y, Tremblay MJ. HIV-1-Mediated BAFF Secretion in Macrophages Does Not Require Endosomal TLRs, Type-I IFN, and Nef, but Depends on the Cellular Phenotype Status. THE JOURNAL OF IMMUNOLOGY 2016; 196:3806-17. [PMID: 27022194 DOI: 10.4049/jimmunol.1501249] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Accepted: 02/23/2016] [Indexed: 11/19/2022]
Abstract
HIV-1 infection is characterized by persistent viral replication, chronic immune activation, and CD4(+) T cell depletion. Moreover, several immune dysfunctions are observed in cells that are not targeted by the virus, such as B cells. Some B cell abnormalities include hypergammaglobulinemia, nonspecific B cell activation, class switching, increased cell turnover, breakage of tolerance, and a loss of the capacity to generate and maintain memory. Several cytokines and growth factors that are increased in the serum of HIV-1-infected individuals have been suggested to directly or indirectly trigger B cell activation, and one of these is BAFF. In this study, we investigate the ability of fully competent (R5-tropic) HIV-1 to induce BAFF production by monocyte-derived macrophages (MDMs). We demonstrate here that HIV-1 drives BAFF production in MDMs in a type-I IFN- and TLR-independent manner. Moreover, we determine that HIV-1 Nef accessory protein is dispensable in BAFF upregulation as a nef-deleted HIV-1 strain is still able to increase BAFF at levels similar to the wild type strain. Finally, we show that the macrophage phenotype status affects HIV-1 replication and BAFF induction, as both were abrogated in MDMs displaying a M1 phenotype. This study provides new useful information about the increased levels of BAFF observed during HIV-1 infection and highlights the importance of macrophages as a source of BAFF, a phenomenon that might contribute to B cell dysfunctions at inflammatory tissue sites in infected individuals.
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Affiliation(s)
- Alejandro M Gomez
- Axe des Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada; and
| | - Michel Ouellet
- Axe des Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada; and
| | - Alexandre Deshiere
- Axe des Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada; and
| | - Yann Breton
- Axe des Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada; and
| | - Michel J Tremblay
- Axe des Maladies Infectieuses et Immunitaires, Centre de Recherche du Centre Hospitalier Universitaire de Québec-Université Laval, Quebec City, Quebec G1V 4G2, Canada; and Département de Microbiologie-Infectiologie et Immunologie, Faculté de Médecine, Université Laval, Quebec City, Quebec G1V 0A6, Canada
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Iyer AS, Khaskhely NM, Leggat DJ, Ohtola JA, Saul-McBeth JL, Khuder SA, Westerink MAJ. Inflammatory Markers and Immune Response to Pneumococcal Vaccination in HIV-Positive and -Negative Adults. PLoS One 2016; 11:e0150261. [PMID: 26930208 PMCID: PMC4773189 DOI: 10.1371/journal.pone.0150261] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 02/01/2016] [Indexed: 11/30/2022] Open
Abstract
Background Members of the Tumor Necrosis Factor (TNF)-superfamily have speculated roles in the response against T-independent type II antigens (TI-II) including pneumococcal polysaccharides (PPS). Dysregulation in their expression is associated with an enhanced risk for pneumococcal disease in neonates but their expression in other high-risk populations including HIV-positive individuals remains to be elucidated. Objective To investigate signals that contribute towards PPS-response and identify potential anomalies that may account for diminished serological response in HIV-positive individuals post Pneumovax (PPV23) immunization. Methods Markers of inflammation, C-reactive protein (CRP), IL-6, sCD27 and sCD30, were assessed in HIV-positive and -negative individuals as potential predictors of PPV23 response. Serum levels of B cell activating factor (BAFF), transmembrane activator and calcium-modulator and cytophilin ligand interactor (TACI), B cell maturation antigen (BCMA) and B cell expression of BAFF-R, TACI, BCMA, CD40 and CD21 were assessed in total (unselected) and PPS23F (antigen)-specific B cells of PPV23 immunized HIV-positive and -negative individuals. Results CRP, sCD27, sCD30 and BAFF were significantly elevated in the serum of HIV-positive individuals but did not adversely affect PPV23 response. Assessment of PPS-specific B cells revealed enhanced TACI and reduced BAFF-R expression compared to unselected B cells in HIV-positive and -negative individuals. Surface TACI was similar but soluble TACI was significantly lower in HIV-positive compared to HIV-negative individuals. Conclusion Current studies highlight a potential role for TACI in PPV23 response based on its enhanced expression on PPS-specific B cells. Although surface levels of TACI were similar, diminished soluble TACI (sTACI) in HIV-positive compared to HIV-negative individuals could potentially decrease BAFF responsiveness and Ig response. A better understanding of the role of TNF receptors could contribute to the design of improved pneumococcal vaccines. Trial Registration ClinicalTrials.gov NCT02515240
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Affiliation(s)
- Anita S Iyer
- Department of Medicine, University of Toledo, 3000 Arlington Avenue, Toledo, Ohio 43614, United States of America
| | - Noor M Khaskhely
- Department of Medicine, University of Toledo, 3000 Arlington Avenue, Toledo, Ohio 43614, United States of America
| | - David J Leggat
- Department of Medicine, University of Toledo, 3000 Arlington Avenue, Toledo, Ohio 43614, United States of America
| | - Jennifer A Ohtola
- Department of Medicine, University of Toledo, 3000 Arlington Avenue, Toledo, Ohio 43614, United States of America
| | - Jessica L Saul-McBeth
- Department of Medicine, University of Toledo, 3000 Arlington Avenue, Toledo, Ohio 43614, United States of America
| | - Sadik A Khuder
- Department of Public Health, University of Toledo, 3000 Arlington Avenue, Toledo, Ohio 43614, United States of America
| | - M A Julie Westerink
- Department of Medicine; Department of Infectious Diseases and Department of Microbiology and Immunology, 135 Rutledge Avenue, Charleston, South Carolina 29425, United States of America
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Plasmacytoid dendritic cells and myeloid cells differently contribute to B-cell-activating factor belonging to the tumor necrosis factor superfamily overexpression during primary HIV infection. AIDS 2016; 30:365-76. [PMID: 26558721 DOI: 10.1097/qad.0000000000000965] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND After describing heightened levels of circulating B-cell-activating factor belonging to the tumor necrosis factor superfamily (BAFF) as well as changes in B-cell phenotype and functions during acute infection by simian immunodeficiency virus, we wanted to determine whether and by which cells BAFF was over-expressed in primary HIV-infected (PHI) patients. DESIGN AND METHODS We simultaneously examined circulating BAFF levels by ELISA and membrane-bound BAFF (mBAFF) expression by flow cytometry in peripheral blood mononuclear cells of healthy donors and PHI patients followed for 6 months. We also examined whether HIV-1 modifies BAFF expression or release in various myeloid cells and plasmacytoid dendritic cells (pDC) in vitro. RESULTS Circulating BAFF levels were transiently increased at enrolment. They positively correlated with CXCL10 levels and inversely with B-cell counts. Whereas mBAFF was expressed by most pDC and on a fraction of intermediate monocytes in healthy donors, the frequency of mBAFF cells significantly increased among nonclassical monocytes and CD1c dendritic cells but decreased among pDC in PHI patients. In contrast to myeloid cells, pDC never released BAFF upon stimulation. Their mBAFF expression was enhanced by HIV-1, independently of type I IFN. CONCLUSION Our findings reveal that the pattern of BAFF expression by myeloid cells and pDC is altered in PHI patients and constitutes a valuable marker of immune activation whose circulating levels correlate with CXCL10 levels. Due to their homing in different tissue areas, pDC and myeloid cells might target different B-cell subsets through their mBAFF expression or soluble BAFF release.
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Abstract
Although in decline after successful anti-HIV therapy, B-cell lymphomas are still elevated in HIV-1-seropositive (HIV+) persons, and the mechanisms are obscure. The HIV-1 matrix protein p17 persists in germinal centers long after HIV-1 drug suppression, and some p17 variants (vp17s) activate Akt signaling and promote growth of transformed B cells. Here we show that vp17s derived from four of five non-Hodgkin lymphoma (NHL) tissues from HIV+ subjects display potent B-cell growth-promoting activity. They are characterized by amino acid insertions at position 117-118 (Ala-Ala) or 125-126 (Gly-Asn or Gly-Gln-Ala-Asn-Gln-Asn) among some other mutations throughout the sequence. Identical dominant vp17s are found in both tumor and plasma. Three of seven plasma samples from an independent set of NHL cases manifested multiple Ala insertions at position 117-118, and one with the Ala-Ala profile also promoted B-cell growth and activated Akt signaling. Ultradeep pyrosequencing showed that vp17s with C-terminal insertions are more frequently detected in plasma of HIV+ subjects with than without NHL. Insertion of Ala-Ala at position 117-118 into reference p17 (refp17) was sufficient to confer B-cell growth-promoting activity. In contrast, refp17 bearing the Gly-Asn insertion at position 125-126 did not, suggesting that mutations not restricted to the C terminus can also account for this activity. Biophysical analysis revealed that the Ala-Ala insertion mutant is destabilized compared with refp17, whereas the Gly-Asn form is stabilized. This finding provides an avenue for further exploration of structure function relationships and new treatment strategies in combating HIV-1-related NHL.
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Murira A, Lapierre P, Lamarre A. Evolution of the Humoral Response during HCV Infection: Theories on the Origin of Broadly Neutralizing Antibodies and Implications for Vaccine Design. Adv Immunol 2015; 129:55-107. [PMID: 26791858 DOI: 10.1016/bs.ai.2015.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Similar to human immunodeficiency virus (HIV)-1, vaccine-induced elicitation of broadly neutralizing (bNt) antibodies (Abs) is gaining traction as a key goal toward the eradication of the hepatitis C virus (HCV) pandemic. Previously, the significance of the Ab response against HCV was underappreciated given the prevailing evidence advancing the role of the cellular immune response in clearance and overall control of the infection. However, recent findings have driven growing interest in the humoral arm of the immune response and in particular the role of bNt responses due to their ability to confer protective immunity upon passive transfer in animal models. Nevertheless, the origin and development of bNt Abs is poorly understood and their occurrence is rare as well as delayed with emergence only observed in the chronic phase of infection. In this review, we characterize the interplay between the host immune response and HCV as it progresses from the acute to chronic phase of infection. In addition, we place these events in the context of current hypotheses on the origin of bNt Abs against the HIV-1, whose humoral immune response is better characterized. Based on the increasing significance of the humoral immune response against HCV, characterization of these events may be critical in understanding the development of the bNt responses and, thus, provide strategies toward effective vaccine design.
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Affiliation(s)
- Armstrong Murira
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, Quebec, Canada.
| | - Pascal Lapierre
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, Quebec, Canada
| | - Alain Lamarre
- Immunovirology Laboratory, Institut national de la recherche scientifique (INRS), INRS-Institut Armand-Frappier, Laval, Quebec, Canada.
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Abstract
PURPOSE OF REVIEW Since the discovery of Epstein-Barr virus in Burkitt's lymphoma 50 years ago, only one other virus, namely Kaposi's sarcoma-associated herpesvirus/human herpesvirus-8, has been confirmed to be a direct cause of B-cell lymphoma. Here we will review the evidence for Epstein-Barr virus and Kaposi's sarcoma-associated herpesvirus as causal lymphoma agents. RECENT FINDINGS A deeper understanding of specific mechanisms by which Epstein-Barr virus and Kaposi's sarcoma-associated herpesvirus cause B-cell lymphomas has been acquired over the past years, in particular with respect to viral protein interactions with host cell pathways, and microRNA functions. Specific therapies based on knowledge of viral functions are beginning to be evaluated, mostly in preclinical models. SUMMARY Understanding the causal associations of specific infectious agents with certain B-cell lymphomas has allowed more accurate diagnosis and classification. A deeper knowledge of the specific mechanisms of transformation is essential to begin assessing whether virus-targeted treatment modalities may be used in the future.
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Affiliation(s)
- Ethel Cesarman
- Department of Pathology and Laboratory Medicine, Weill Cornell Medical College, New York, New York, USA
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