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Wang MM, Zhao Y, Liu J, Fan RR, Tang YQ, Guo ZY, Li T. The role of the cGAS-STING signaling pathway in viral infections, inflammatory and autoimmune diseases. Acta Pharmacol Sin 2024:10.1038/s41401-023-01185-5. [PMID: 38822084 DOI: 10.1038/s41401-023-01185-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 10/18/2023] [Indexed: 06/02/2024] Open
Abstract
Pattern recognition receptors are an essential part of the immune system, which detect pathogen-associated molecular patterns (PAMPs) and damage-associated molecular patterns (DAMPs) and help shape both innate and adaptive immune responses. When dsDNA is present, cyclic GMP-AMP Synthase (cGAS) produces a second messenger called cyclic GMP-AMP (cGAMP), which then triggers an adaptor protein called STING, and eventually activates the expression of type I interferon (IFN) and pro-inflammatory cytokines in immune cells. The cGAS-STING signaling pathway has been receiving a lot of attention lately as a key immune-surveillance mediator. In this review, we summarize the present circumstances of the cGAS-STING signaling pathway in viral infections and inflammatory diseases, as well as autoimmune diseases. Modulation of the cGAS-STING signaling pathway provides potential strategies for treating viral infections, inflammatory diseases, and autoimmune diseases.
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Affiliation(s)
- Ming-Ming Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macao, 999078, China
| | - Yue Zhao
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macao, 999078, China
| | - Juan Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macao, 999078, China
| | - Rong-Rong Fan
- Department of Biosciences and Nutrition, Karolinska Institute, Huddinge, 14183, Sweden
| | - Yan-Qing Tang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macao, 999078, China
| | - Zheng-Yang Guo
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macao, 999078, China
| | - Ting Li
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macao, 999078, China.
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2
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Kilroy JM, Leal AA, Henderson AJ. Chronic HIV Transcription, Translation, and Persistent Inflammation. Viruses 2024; 16:751. [PMID: 38793632 PMCID: PMC11125830 DOI: 10.3390/v16050751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
People with HIV exhibit persistent inflammation that correlates with HIV-associated comorbidities including accelerated aging, increased risk of cardiovascular disease, and neuroinflammation. Mechanisms that perpetuate chronic inflammation in people with HIV undergoing antiretroviral treatments are poorly understood. One hypothesis is that the persistent low-level expression of HIV proviruses, including RNAs generated from defective proviral genomes, drives the immune dysfunction that is responsible for chronic HIV pathogenesis. We explore factors during HIV infection that contribute to the generation of a pool of defective proviruses as well as how HIV-1 mRNA and proteins alter immune function in people living with HIV.
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Affiliation(s)
- Jonathan M. Kilroy
- Department of Virology, Immunology, Microbiology, Boston University Chobanian and Avedisian School of Medicine, Boston, MA 02118, USA; (J.M.K.); (A.A.L.)
| | - Andrew A. Leal
- Department of Virology, Immunology, Microbiology, Boston University Chobanian and Avedisian School of Medicine, Boston, MA 02118, USA; (J.M.K.); (A.A.L.)
| | - Andrew J. Henderson
- Department of Virology, Immunology, Microbiology, Boston University Chobanian and Avedisian School of Medicine, Boston, MA 02118, USA; (J.M.K.); (A.A.L.)
- Department of Medicine and Virology, Immunology, Microbiology, Boston University Chobanian and Avedisian School of Medicine, Boston, MA 02118, USA
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3
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Amegashie EA, Asamoah P, Ativi LEA, Adusei-Poku M, Bonney EY, Tagoe EA, Paintsil E, Torpey K, Quaye O. Clinical outcomes and immunological response to SARS-CoV-2 infection among people living with HIV. Exp Biol Med (Maywood) 2024; 249:10059. [PMID: 38628843 PMCID: PMC11020089 DOI: 10.3389/ebm.2024.10059] [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: 11/23/2023] [Accepted: 02/22/2024] [Indexed: 04/19/2024] Open
Abstract
People living with HIV (PLWH) usually suffer from co-infections and co-morbidities including respiratory tract infections. SARS-CoV-2 has been reported to cause respiratory infections. There are uncertainties in the disease severity and immunological response among PLWH who are co-infected with COVID-19. This review outlines the current knowledge on the clinical outcomes and immunological response to SARS-CoV-2 among PLWH. Literature was searched in Google scholar, Scopus, PubMed, and Science Direct conforming with the Preferred Reporting Items for Systematic reviews and Meta-analyses (PRISMA) guidelines from studies published from January 2020 to June 2023. A total of 81 studies from 25 countries were identified, and RT-PCR was used in confirming COVID-19 in 80 of the studies. Fifty-seven studies assessed risk factors and clinical outcomes in HIV patients co-infected with COVID-19. Thirty-nine of the studies indicated the following factors being associated with severe outcomes in HIV/SARS-CoV-2: older age, the male sex, African American race, smoking, obesity, cardiovascular diseases, low CD4+ count, high viral load, tuberculosis, high levels of inflammatory markers, chronic kidney disease, hypertension, diabetes, interruption, and delayed initiation of ART. The severe outcomes are patients' hospitalization, admission at intensive care unit, mechanical ventilation, and death. Twenty (20) studies, however, reported no difference in clinical presentation among co-infected compared to mono-infected individuals. Immune response to SARS-CoV-2 infection was investigated in 25 studies, with some of the studies reporting high levels of inflammatory markers, T cell exhaustion and lower positive conversion rate of IgG in PLWH. There is scanty information on the cytokines that predisposes to severity among HIV/SARS-CoV-2 co-infected individuals on combined ART. More research work should be carried out to validate co-infection-related cytokines and/or immune markers to SARS-CoV-2 among PLWH.
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Affiliation(s)
- Esimebia Adjovi Amegashie
- Department of Biochemistry, Cell and Molecular Biology, West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), University of Ghana, Accra, Ghana
| | - Prince Asamoah
- Department of Biochemistry, Cell and Molecular Biology, West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), University of Ghana, Accra, Ghana
| | - Lawrencia Emefa Ami Ativi
- Department of Medical Microbiology, University of Ghana Medical School, College of Health Sciences, University of Ghana, Accra, Ghana
| | - Mildred Adusei-Poku
- Department of Medical Microbiology, University of Ghana Medical School, College of Health Sciences, University of Ghana, Accra, Ghana
| | - Evelyn Yayra Bonney
- Department of Virology, Noguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana
| | - Emmanuel Ayitey Tagoe
- Department of Medical Laboratory Sciences, School of Biomedical and Allied Health Sciences, University of Ghana, Accra, Ghana
| | - Elijah Paintsil
- Department of Paediatrics, Yale School of Medicine, Yale University, New Haven, CT, United States
| | - Kwasi Torpey
- Department of Population, Family and Reproductive Health, School of Public Health, University of Ghana, Accra, Ghana
| | - Osbourne Quaye
- Department of Biochemistry, Cell and Molecular Biology, West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), University of Ghana, Accra, Ghana
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4
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Imberti L, Magro P, Sottini A, Quaresima V, Castelli F, Quiros‐Roldan E. High frequency of type I interferon auto-antibodies in a group of middle-aged HIV-infected patients: A cross-sectional exploratory study. Immun Inflamm Dis 2023; 11:e1056. [PMID: 38018592 PMCID: PMC10664390 DOI: 10.1002/iid3.1056] [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: 06/26/2023] [Revised: 09/26/2023] [Accepted: 10/09/2023] [Indexed: 11/30/2023] Open
Abstract
BACKGROUND Auto-antibodies neutralizing the activity of type I interferons have been recently described in patients infected by SARS-CoV-2. They can be present even before the onset of the infection. Since type I interferons exert a dichotomous role in the pathogenesis of acute versus chronic HIV infection and auto-antibodies are often found in untreated and anti-retroviral treated HIV+ patients, we investigated whether auto-antibodies anti-type I interferons are present at high prevalence in those HIV+ patients with concomitant opportunistic infections (OIs). METHODS The analysis of auto-antibodies against two types of type I interferons (IFN-α2 and IFN-ω) was performed using the ELISA test in 60 patients chronically infected by HIV who showed concomitant infections caused by mycobacterium tuberculosis or nontuberculosis mycobacterium or with active cytomegalovirus infections. Results were compared with those of 283 SARS-CoV-2 swab positive patients showing mild to severe pneumonia. A chi-square (χ2 ) test or the Wilcoxon-Mann-Whitney test were used to compare the HIV+ patient categorical or continuous variables, respectively. RESULTS A high prevalence of auto-antibodies to type I interferons was found in middle-aged HIV-infected patients with concomitant OIs (11.6% vs. 5.3% in COVID-19 subjects; p < .05). No statistically differences were found for viro/immunological characteristics (CD4 and CD8 cell counts and viral load) between patients with and without type I interferons auto-antibodies. CONCLUSIONS This study, which is the first searching auto-antibodies against type I interferons in HIV-infected patients, demonstrated that their prevalence was higher than that expected by the age of these patients. Furthermore, it indicated that these auto-antibodies are nonspecifically increased in critical SARS-CoV-2 infection but can be found also in other infections.
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Affiliation(s)
- Luisa Imberti
- Section of MicrobiologyUniversity of BresciaBresciaItaly
| | - Paola Magro
- Department of Infectious and Tropical DiseasesUniversity of BresciaBresciaItaly
| | | | | | - Francesco Castelli
- Department of Infectious and Tropical DiseasesUniversity of BresciaBresciaItaly
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Mertowska P, Smolak K, Mertowski S, Grywalska E. Immunomodulatory Role of Interferons in Viral and Bacterial Infections. Int J Mol Sci 2023; 24:10115. [PMID: 37373262 DOI: 10.3390/ijms241210115] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/02/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Interferons are a group of immunomodulatory substances produced by the human immune system in response to the presence of pathogens, especially during viral and bacterial infections. Their remarkably diverse mechanisms of action help the immune system fight infections by activating hundreds of genes involved in signal transduction pathways. In this review, we focus on discussing the interplay between the IFN system and seven medically important and challenging viruses (herpes simplex virus (HSV), influenza, hepatitis C virus (HCV), lymphocytic choriomeningitis virus (LCMV), human immunodeficiency virus (HIV), Epstein-Barr virus (EBV), and SARS-CoV coronavirus) to highlight the diversity of viral strategies. In addition, the available data also suggest that IFNs play an important role in the course of bacterial infections. Research is currently underway to identify and elucidate the exact role of specific genes and effector pathways in generating the antimicrobial response mediated by IFNs. Despite the numerous studies on the role of interferons in antimicrobial responses, many interdisciplinary studies are still needed to understand and optimize their use in personalized therapeutics.
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Affiliation(s)
- Paulina Mertowska
- Department of Experimental Immunology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Konrad Smolak
- Department of Experimental Immunology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Sebastian Mertowski
- Department of Experimental Immunology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Ewelina Grywalska
- Department of Experimental Immunology, Medical University of Lublin, 20-093 Lublin, Poland
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6
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Masenga SK, Mweene BC, Luwaya E, Muchaili L, Chona M, Kirabo A. HIV-Host Cell Interactions. Cells 2023; 12:1351. [PMID: 37408185 DOI: 10.3390/cells12101351] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 07/07/2023] Open
Abstract
The development of antiretroviral drugs (ARVs) was a great milestone in the management of HIV infection. ARVs suppress viral activity in the host cell, thus minimizing injury to the cells and prolonging life. However, an effective treatment has remained elusive for four decades due to the successful immune evasion mechanisms of the virus. A thorough understanding of the molecular interaction of HIV with the host cell is essential in the development of both preventive and curative therapies for HIV infection. This review highlights several inherent mechanisms of HIV that promote its survival and propagation, such as the targeting of CD4+ lymphocytes, the downregulation of MHC class I and II, antigenic variation and an envelope complex that minimizes antibody access, and how they collaboratively render the immune system unable to mount an effective response.
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Affiliation(s)
- Sepiso K Masenga
- HAND Research Group, School of Medicine and Health Sciences, Mulungushi University, Livingstone Campus, Livingstone 10101, Zambia
- Vanderbilt University Medical Center, Department of Medicine, Division of Clinical Pharmacology, Room 536 Robinson Research Building, Nashville, TN 37232-6602, USA
| | - Bislom C Mweene
- HAND Research Group, School of Medicine and Health Sciences, Mulungushi University, Livingstone Campus, Livingstone 10101, Zambia
| | - Emmanuel Luwaya
- HAND Research Group, School of Medicine and Health Sciences, Mulungushi University, Livingstone Campus, Livingstone 10101, Zambia
| | - Lweendo Muchaili
- HAND Research Group, School of Medicine and Health Sciences, Mulungushi University, Livingstone Campus, Livingstone 10101, Zambia
| | - Makondo Chona
- HAND Research Group, School of Medicine and Health Sciences, Mulungushi University, Livingstone Campus, Livingstone 10101, Zambia
| | - Annet Kirabo
- Vanderbilt University Medical Center, Department of Medicine, Division of Clinical Pharmacology, Room 536 Robinson Research Building, Nashville, TN 37232-6602, USA
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7
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Augello M, Bono V, Rovito R, Tincati C, Marchetti G. Immunologic Interplay Between HIV/AIDS and COVID-19: Adding Fuel to the Flames? Curr HIV/AIDS Rep 2023; 20:51-75. [PMID: 36680700 PMCID: PMC9860243 DOI: 10.1007/s11904-023-00647-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2022] [Indexed: 01/22/2023]
Abstract
PURPOSE OF REVIEW HIV/AIDS and COVID-19 have been the major pandemics overwhelming our times. Given the enduring immune disfunction featuring people living with HIV (PLWH) despite combination antiretroviral therapy (cART), concerns for higher incidence and severity of SARS-CoV-2 infection as well as for suboptimal responses to the newly developed vaccines in this population arose early during the pandemics. Herein, we discuss the complex interplay between HIV and SARS-CoV-2, with a special focus on the immune responses to SARS-CoV-2 natural infection and vaccination in PLWH. RECENT FINDINGS Overall, current literature shows that COVID-19 severity and outcomes may be worse and immune responses to infection or vaccination lower in PLWH with poor CD4 + T-cell counts and/or uncontrolled HIV viremia. Data regarding the risk of post-acute sequelae of SARS-CoV-2 infection (PASC) among PLWH are extremely scarce, yet they seem to suggest a higher incidence of such condition. Scarce immunovirological control appears to be the major driver of weak immune responses to SARS-CoV-2 infection/vaccination and worse COVID-19 outcomes in PLWH. Therefore, such individuals should be prioritized for vaccination and should receive additional vaccine doses. Furthermore, given the potentially higher risk of developing long-term sequelae, PLWH who experienced COVID-19 should be ensured a more careful and prolonged follow-up.
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Affiliation(s)
- Matteo Augello
- Clinic of Infectious Diseases and Tropical Medicine, Department of Health Sciences, San Paolo Hospital, ASST Santi Paolo E Carlo, University of Milan, Via A. Di Rudinì, 8, 20142, Milan, Italy
| | - Valeria Bono
- Clinic of Infectious Diseases and Tropical Medicine, Department of Health Sciences, San Paolo Hospital, ASST Santi Paolo E Carlo, University of Milan, Via A. Di Rudinì, 8, 20142, Milan, Italy
| | - Roberta Rovito
- Clinic of Infectious Diseases and Tropical Medicine, Department of Health Sciences, San Paolo Hospital, ASST Santi Paolo E Carlo, University of Milan, Via A. Di Rudinì, 8, 20142, Milan, Italy
| | - Camilla Tincati
- Clinic of Infectious Diseases and Tropical Medicine, Department of Health Sciences, San Paolo Hospital, ASST Santi Paolo E Carlo, University of Milan, Via A. Di Rudinì, 8, 20142, Milan, Italy
| | - Giulia Marchetti
- Clinic of Infectious Diseases and Tropical Medicine, Department of Health Sciences, San Paolo Hospital, ASST Santi Paolo E Carlo, University of Milan, Via A. Di Rudinì, 8, 20142, Milan, Italy.
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8
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Scordio M, Frasca F, Santinelli L, Sorrentino L, Pierangeli A, Turriziani O, Mastroianni CM, Antonelli G, Viscidi RP, d'Ettorre G, Scagnolari C. High frequency of neutralizing antibodies to type I Interferon in HIV-1 patients hospitalized for COVID-19. Clin Immunol 2022; 241:109068. [PMID: 35764258 PMCID: PMC9233547 DOI: 10.1016/j.clim.2022.109068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/19/2022] [Accepted: 06/21/2022] [Indexed: 11/16/2022]
Affiliation(s)
- Mirko Scordio
- Department of Molecular Medicine, Laboratory of Virology, Sapienza University of Rome, Viale di Porta Tiburtina n° 28, 00185 Rome, Italy.
| | - Federica Frasca
- Department of Molecular Medicine, Laboratory of Virology, Sapienza University of Rome, Viale di Porta Tiburtina n° 28, 00185 Rome, Italy.
| | - Letizia Santinelli
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Policlinico Umberto I of Rome, Viale del Policlinico 155, 00161 Rome, Italy.
| | - Leonardo Sorrentino
- Department of Molecular Medicine, Laboratory of Virology, Sapienza University of Rome, Viale di Porta Tiburtina n° 28, 00185 Rome, Italy.
| | - Alessandra Pierangeli
- Department of Molecular Medicine, Laboratory of Virology, Sapienza University of Rome, Viale di Porta Tiburtina n° 28, 00185 Rome, Italy.
| | - Ombretta Turriziani
- Department of Molecular Medicine, Laboratory of Virology, Sapienza University of Rome, Viale di Porta Tiburtina n° 28, 00185 Rome, Italy; Microbiology and Virology Unit, Sapienza University of Rome, Policlinico Umberto I of Rome, Viale Regina Elena, 324, 00161 Rome, Italy.
| | - Claudio M Mastroianni
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Policlinico Umberto I of Rome, Viale del Policlinico 155, 00161 Rome, Italy.
| | - Guido Antonelli
- Department of Molecular Medicine, Laboratory of Virology, Sapienza University of Rome, Viale di Porta Tiburtina n° 28, 00185 Rome, Italy; Microbiology and Virology Unit, Sapienza University of Rome, Policlinico Umberto I of Rome, Viale Regina Elena, 324, 00161 Rome, Italy.
| | - Raphael P Viscidi
- Department of Pediatrics, Johns Hopkins University School of Medicine, 1800 Orleans Street Baltimore, MD, United States.
| | - Gabriella d'Ettorre
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Policlinico Umberto I of Rome, Viale del Policlinico 155, 00161 Rome, Italy.
| | - Carolina Scagnolari
- Department of Molecular Medicine, Laboratory of Virology, Sapienza University of Rome, Viale di Porta Tiburtina n° 28, 00185 Rome, Italy.
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9
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Wang Y, Qian G, Zhu L, Zhao Z, Liu Y, Han W, Zhang X, Zhang Y, Xiong T, Zeng H, Yu X, Yu X, Zhang X, Xu J, Zou Q, Yan D. HIV-1 Vif suppresses antiviral immunity by targeting STING. Cell Mol Immunol 2022; 19:108-121. [PMID: 34811497 PMCID: PMC8752805 DOI: 10.1038/s41423-021-00802-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 10/25/2021] [Indexed: 01/03/2023] Open
Abstract
HIV-1 infection-induced cGAS-STING-TBK1-IRF3 signaling activates innate immunity to produce type I interferon (IFN). The HIV-1 nonstructural protein viral infectivity factor (Vif) is essential in HIV-1 replication, as it degrades the host restriction factor APOBEC3G. However, whether and how it regulates the host immune response remains to be determined. In this study, we found that Vif inhibited the production of type I IFN to promote immune evasion. HIV-1 infection induced the activation of the host tyrosine kinase FRK, which subsequently phosphorylated the immunoreceptor tyrosine-based inhibitory motif (ITIM) of Vif and enhanced the interaction between Vif and the cellular tyrosine phosphatase SHP-1 to inhibit type I IFN. Mechanistically, the association of Vif with SHP-1 facilitated SHP-1 recruitment to STING and inhibited the K63-linked ubiquitination of STING at Lys337 by dephosphorylating STING at Tyr162. However, the FRK inhibitor D-65495 counteracted the phosphorylation of Vif to block the immune evasion of HIV-1 and antagonize infection. These findings reveal a previously unknown mechanism through which HIV-1 evades antiviral immunity via the ITIM-containing protein to inhibit the posttranslational modification of STING. These results provide a molecular basis for the development of new therapeutic strategies to treat HIV-1 infection.
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Affiliation(s)
- Yu Wang
- grid.8547.e0000 0001 0125 2443Department of Immunology, School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity & Shanghai Public Health Clinical Center, Fudan University, Shanghai, 200032 China ,grid.410570.70000 0004 1760 6682National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing, 400038 China ,grid.410570.70000 0004 1760 6682Department of Basic Courses, NCO School, Army Medical University, Shijiazhuang, 050081 China
| | - Gui Qian
- grid.8547.e0000 0001 0125 2443Department of Immunology, School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity & Shanghai Public Health Clinical Center, Fudan University, Shanghai, 200032 China
| | - Lingyan Zhu
- grid.8547.e0000 0001 0125 2443Department of Immunology, School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity & Shanghai Public Health Clinical Center, Fudan University, Shanghai, 200032 China
| | - Zhuo Zhao
- grid.410570.70000 0004 1760 6682National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing, 400038 China
| | - Yinan Liu
- grid.8547.e0000 0001 0125 2443Department of Immunology, School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity & Shanghai Public Health Clinical Center, Fudan University, Shanghai, 200032 China
| | - Wendong Han
- grid.8547.e0000 0001 0125 2443Biosafety Level 3 Laboratory, Fudan University, Shanghai, 200032 China
| | - Xiaokai Zhang
- grid.410570.70000 0004 1760 6682National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing, 400038 China
| | - Yihua Zhang
- grid.8547.e0000 0001 0125 2443Department of Immunology, School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity & Shanghai Public Health Clinical Center, Fudan University, Shanghai, 200032 China
| | - Tingrong Xiong
- grid.410570.70000 0004 1760 6682National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing, 400038 China
| | - Hao Zeng
- grid.410570.70000 0004 1760 6682National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing, 400038 China
| | - Xianghui Yu
- grid.64924.3d0000 0004 1760 5735National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, 130012 China
| | - Xiaofang Yu
- grid.430605.40000 0004 1758 4110Institute of Virology and AIDS Research, The First Hospital of Jilin University, Changchun, 130061 China
| | - Xiaoyan Zhang
- grid.8547.e0000 0001 0125 2443Department of Immunology, School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity & Shanghai Public Health Clinical Center, Fudan University, Shanghai, 200032 China
| | - Jianqing Xu
- grid.8547.e0000 0001 0125 2443Shanghai Key Laboratory of Organ Transplantation, Zhongshan Hospital & Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032 China
| | - Quanming Zou
- grid.410570.70000 0004 1760 6682National Engineering Research Centre of Immunological Products, Department of Microbiology and Biochemical Pharmacy, College of Pharmacy, Army Medical University, Chongqing, 400038 China
| | - Dapeng Yan
- grid.8547.e0000 0001 0125 2443Department of Immunology, School of Basic Medical Sciences, Shanghai Institute of Infectious Disease and Biosecurity & Shanghai Public Health Clinical Center, Fudan University, Shanghai, 200032 China
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10
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Santinelli L, De Girolamo G, Borrazzo C, Vassalini P, Pinacchio C, Cavallari EN, Statzu M, Frasca F, Scordio M, Bitossi C, Viscido A, Ceccarelli G, Mancone M, Mastroianni CM, Antonelli G, d'Ettorre G, Scagnolari C. Alteration of type I interferon response is associated with subclinical atherosclerosis in virologically suppressed HIV-1-infected male patients. J Med Virol 2021; 93:4930-4938. [PMID: 33913525 PMCID: PMC8360015 DOI: 10.1002/jmv.27028] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 04/01/2021] [Accepted: 04/06/2021] [Indexed: 12/12/2022]
Abstract
Given human immunodeficiency virus‐1 (HIV‐1)‐infected patients have alterations in the type I interferon (IFN‐I) pathway and are also at elevated risk of atherosclerosis, we evaluated IFN‐I response and subclinical cardiovascular disease (CVD) association in HIV‐1‐infected patients. Transcript levels of IFN‐α/β and IFN‐stimulated gene 56 (ISG56) were evaluated by RT/real‐time PCR in peripheral blood mononuclear cells collected from asymptomatic HIV‐1‐positive male patients at high risk of developing CVD (n = 34) and healthy subjects (n = 21). Stenosis degree (≥ or <50%), calcium volume score, calcium Agatston score, and myocardial extracellular volume were examined by coronary computerized tomography scan. Carotid intima‐media thickness (cIMT), Framingham risk score, atherosclerotic cardiovascular disease (ASCVD) score, and risk score developed by data collection on adverse effects of anti‐HIV drugs (D:A:D) were also measured. Increased IFN‐α, IFN‐β, and ISG56 levels were observed in all HIV‐1‐infected males compared to healthy controls (p < .001 for all genes analyzed). HIV‐1‐infected patients with a stenosis degree ≥50% showed a higher Framingham risk score (p = .019), which was correlated with IFN‐β and ISG56 levels. HIV‐1‐infected males with enhanced IFN‐I levels and stenosis displayed a higher ASCVD calculated risk (p = .011) and D:A:D score (p = .004). Also, there was a trend toward higher IFN‐α and ISG56 mRNA levels in HIV‐1‐positive patients with an increased cIMT (p > .05). Dysregulation of IFN‐I response might participate in the pathogenesis of HIV‐1‐associated CVD.
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Affiliation(s)
- Letizia Santinelli
- Department of Molecular Medicine, Laboratory of Virology, Affiliated to Istituto Pasteur Italia, Sapienza University of Rome, Viale di Porta Tiburtina, Rome, Italy
| | - Gabriella De Girolamo
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico, Rome, Italy
| | - Cristian Borrazzo
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico, Rome, Italy
| | - Paolo Vassalini
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico, Rome, Italy
| | - Claudia Pinacchio
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico, Rome, Italy
| | - Eugenio Nelson Cavallari
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico, Rome, Italy
| | - Maura Statzu
- Department of Molecular Medicine, Laboratory of Virology, Affiliated to Istituto Pasteur Italia, Sapienza University of Rome, Viale di Porta Tiburtina, Rome, Italy
| | - Federica Frasca
- Department of Molecular Medicine, Laboratory of Virology, Affiliated to Istituto Pasteur Italia, Sapienza University of Rome, Viale di Porta Tiburtina, Rome, Italy
| | - Mirko Scordio
- Department of Molecular Medicine, Laboratory of Virology, Affiliated to Istituto Pasteur Italia, Sapienza University of Rome, Viale di Porta Tiburtina, Rome, Italy
| | - Camilla Bitossi
- Department of Molecular Medicine, Laboratory of Virology, Affiliated to Istituto Pasteur Italia, Sapienza University of Rome, Viale di Porta Tiburtina, Rome, Italy
| | - Agnese Viscido
- Department of Molecular Medicine, Laboratory of Virology, Affiliated to Istituto Pasteur Italia, Sapienza University of Rome, Viale di Porta Tiburtina, Rome, Italy
| | - Giancarlo Ceccarelli
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico, Rome, Italy
| | - Massimo Mancone
- Department of Cardiovascular, Respiratory, Nephrology, Anaesthesiology and Geriatric Sciences, Sapienza University of Rome, Viale del Policlinico, Rome, Italy
| | - Claudio Maria Mastroianni
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico, Rome, Italy
| | - Guido Antonelli
- Department of Molecular Medicine, Laboratory of Virology, Affiliated to Istituto Pasteur Italia, Sapienza University of Rome, Viale di Porta Tiburtina, Rome, Italy.,Microbiology and Virology Unit, Sapienza University Hospital "Policlinico Umberto I", Rome, Italy
| | - Gabriella d'Ettorre
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico, Rome, Italy
| | - Carolina Scagnolari
- Department of Molecular Medicine, Laboratory of Virology, Affiliated to Istituto Pasteur Italia, Sapienza University of Rome, Viale di Porta Tiburtina, Rome, Italy
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11
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Abstract
PURPOSE OF REVIEW In the gastro-intestinal tract, the complex network of multiple innate cell populations play critical roles not only as a first line of defense against invading pathogens and in driving adaptive immune responses but also in maintaining intestinal homeostasis. Here, we describe the roles of various innate immune cell populations in gut immunity and detail studies investigating the impact of acute and chronic HIV infection on these cell populations. RECENT FINDINGS Alterations in frequencies, phenotype and/or function of innate lymphoid cells, dendritic cells, macrophages, neutrophils, and innate-like T cells have been reported in people with HIV (PWH), with many of these features persisting despite anti-retroviral therapy and virological suppression. Dysregulated gut innate immunity in PWH is a feature of gut pathogenesis. A greater understanding of the mechanisms driving impairment in the multiple different gut innate immune cell populations and the downstream consequences of an altered innate immune response on host defense and gut homeostasis in PWH is needed to develop more effective HIV treatments and cure strategies.
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Affiliation(s)
- Stephanie M Dillon
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, 12700 E. 19th Avenue, Mail Stop B168, Aurora, CO, 80045, USA.
| | - Cara C Wilson
- Division of Infectious Diseases, Department of Medicine, University of Colorado Anschutz Medical Campus, 12700 E. 19th Avenue, Mail Stop B168, Aurora, CO, 80045, USA
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12
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The Abstruse Side of Type I Interferon Immunotherapy for COVID-19 Cases with Comorbidities. JOURNAL OF RESPIRATION 2021. [DOI: 10.3390/jor1010005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The Coronavirus Disease-2019 (COVID-19) pandemic, caused by the novel severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has claimed 1.2 million people globally since December 2019. Although the host factors underpinning COVID-19 pathology are not fully understood, type I interferon (IFN-I) response is considered crucial for SARS-CoV-2 pathogenesis. Perturbations in IFN-I signaling and associated interferon-inducible genes (ISG) are among the primary disease severity indicators in COVID-19. Consequently, IFN-I therapy, either alone or in- combination with existing antiviral or anti-inflammatory drugs, is tested in many ongoing clinical trials to reduce COVID-19 mortality. Since signaling by the IFN-I family of molecules regulates host immune response to other infectious and non-infectious diseases, any imbalance in this family of cytokines would impact the clinical outcome of COVID-19, as well as other co-existing diseases. Therefore, it is imperative to evaluate the beneficial-versus-detrimental effects of IFN-I immunotherapy for COVID-19 patients with divergent disease severity and other co-existing conditions. This review article summarizes the role of IFN-I signaling in infectious and non-infectious diseases of humans. It highlights the precautionary measures to be considered before administering IFN-I to COVID-19 patients having other co-existing disorders. Finally, suggestions are proposed to improve IFN-I immunotherapy to COVID-19.
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13
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Mudla A, Jiang Y, Arimoto KI, Xu B, Rajesh A, Ryan AP, Wang W, Daugherty MD, Zhang DE, Hao N. Cell-cycle-gated feedback control mediates desensitization to interferon stimulation. eLife 2020; 9:58825. [PMID: 32945770 PMCID: PMC7500952 DOI: 10.7554/elife.58825] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 09/02/2020] [Indexed: 12/13/2022] Open
Abstract
Cells use molecular circuits to interpret and respond to extracellular cues, such as hormones and cytokines, which are often released in a temporally varying fashion. In this study, we combine microfluidics, time-lapse microscopy, and computational modeling to investigate how the type I interferon (IFN)-responsive regulatory network operates in single human cells to process repetitive IFN stimulation. We found that IFN-α pretreatments lead to opposite effects, priming versus desensitization, depending on input durations. These effects are governed by a regulatory network composed of a fast-acting positive feedback loop and a delayed negative feedback loop, mediated by upregulation of ubiquitin-specific peptidase 18 (USP18). We further revealed that USP18 upregulation can only be initiated at the G1/early S phases of cell cycle upon the treatment onset, resulting in heterogeneous and delayed induction kinetics in single cells. This cell cycle gating provides a temporal compartmentalization of feedback loops, enabling duration-dependent desensitization to repetitive stimulations.
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Affiliation(s)
- Anusorn Mudla
- Section of Molecular Biology, Division of Biological Sciences, University of California, San Diego, La Jolla, United States
| | - Yanfei Jiang
- Section of Molecular Biology, Division of Biological Sciences, University of California, San Diego, La Jolla, United States
| | - Kei-Ichiro Arimoto
- Section of Molecular Biology, Division of Biological Sciences, University of California, San Diego, La Jolla, United States
| | - Bingxian Xu
- Section of Molecular Biology, Division of Biological Sciences, University of California, San Diego, La Jolla, United States
| | - Adarsh Rajesh
- Department of Bioengineering, University of California, San Diego, La Jolla, United States
| | - Andy P Ryan
- Section of Molecular Biology, Division of Biological Sciences, University of California, San Diego, La Jolla, United States
| | - Wei Wang
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, United States
| | - Matthew D Daugherty
- Section of Molecular Biology, Division of Biological Sciences, University of California, San Diego, La Jolla, United States
| | - Dong-Er Zhang
- Section of Molecular Biology, Division of Biological Sciences, University of California, San Diego, La Jolla, United States.,Department of Pathology, Moores UCSD Cancer Center, University of California, San Diego, La Jolla, United States
| | - Nan Hao
- Section of Molecular Biology, Division of Biological Sciences, University of California, San Diego, La Jolla, United States
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14
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d’Ettorre G, Recchia G, Ridolfi M, Siccardi G, Pinacchio C, Innocenti GP, Santinelli L, Frasca F, Bitossi C, Ceccarelli G, Borrazzo C, Antonelli G, Scagnolari C, Mastroianni CM. Analysis of type I IFN response and T cell activation in severe COVID-19/HIV-1 coinfection: A case report. Medicine (Baltimore) 2020; 99:e21803. [PMID: 32899009 PMCID: PMC7478511 DOI: 10.1097/md.0000000000021803] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
RATIONALE Complex immune dysregulation in interferon (IFN) and T cell response has been observed in human immunodeficiency virus (HIV-1)-infected patients as well as in coronavirus disease-2019 (COVID-19) patients. However, severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2)/HIV-1 coinfection has been described in only few cases worldwide and no data are available on immunological outcomes in HIV-1-patients infected with SARS-CoV-2. Hence, this study aims to compare type I IFN response and T cell activation levels between a SARS-CoV-2/HIV-1-coinfected female patient and age-matched HIV-1-positive or uninfected women. PATIENT CONCERNS A 52-year-old woman diagnosed with SARS-CoV-2/HIV-1 coinfection, ten HIV-1-positive women and five age-matched-healthy individuals were enrolled in this study. DIAGNOSES SARS-CoV-2 infection caused severe pneumonia in the second week of illness in HIV-1-positive patient under protease inhibitors. Chest high-resolution computed tomography images of the SARS-CoV-2/HIV-1-coinfected patient showed bilateral ground-glass opacities. INTERVENTIONS SARS-CoV-2/HIV-1-coinfected female patient under darunavir/cobicistat regimen received a 7-days hydroxychloroquine therapy. Analysis of IFNα/β mRNA levels and CD4 and CD8 T cell (CD38, human leukocyte antigen-DR [HLA-DR], CD38 HLA-DR) frequencies were performed by RT/real-time PCR assays and flow cytometry, respectively. Median relative difference (MRD) was calculated for each immunological variable. For values greater than reference, MRD should be a positive number and for values that are smaller, MRD should be negative. OUTCOMES The severe pneumonia observed in SARS-CoV-2/HIV-1-positive patient under protease inhibitors was reversed by a 7-days hydroxychloroquine therapy. At the end of treatment, on day 7, patient reported resolution of fever, normalization of respiratory rate (14 breaths/min), and improved oxygen arterial pressure with a FiO2 of 30%. MRD values for IFNα/β and CD4 and CD8 T cells expressing CD38 and/or HLA-DR found in SARS-CoV-2-/HIV-1-coinfected woman were approximatively equal to 0 when refereed respectively to HIV-1-positive female patients [MRDs IFNα/β: median -0.2545 (range: -0.5/0.1); T cells: median -0.11 (range: -0.8/1.3)] and ≥ 6 when referred to healthy individuals [MRDs IFNα/β: median 28.45 (range: 15/41.9); T cells: median 10 (range 6/22)]. LESSONS These results indicate that SARS-CoV-2 infection in HIV-1-positive female patient was associated with increased levels of IFNα/β-mRNAs and T cell activation compared to healthy individuals.
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Affiliation(s)
- Gabriella d’Ettorre
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico 155
| | - Gregorio Recchia
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico 155
| | - Marco Ridolfi
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico 155
| | - Guido Siccardi
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico 155
| | - Claudia Pinacchio
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico 155
| | - Giuseppe Pietro Innocenti
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico 155
| | - Letizia Santinelli
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico 155
| | - Federica Frasca
- Laboratory of Virology, Department of Molecular Medicine, affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University
| | - Camilla Bitossi
- Laboratory of Virology, Department of Molecular Medicine, affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University
| | - Giancarlo Ceccarelli
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico 155
| | - Cristian Borrazzo
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico 155
| | - Guido Antonelli
- Laboratory of Virology, Department of Molecular Medicine, affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University
- Microbiology and Virology Unit, Hospital “Policlinico Umberto I”, Sapienza University, Rome, Italy
| | - Carolina Scagnolari
- Laboratory of Virology, Department of Molecular Medicine, affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University
| | - Claudio Maria Mastroianni
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Viale del Policlinico 155
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15
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Interferon-α alters host glycosylation machinery during treated HIV infection. EBioMedicine 2020; 59:102945. [PMID: 32827942 PMCID: PMC7452630 DOI: 10.1016/j.ebiom.2020.102945] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/19/2020] [Accepted: 07/22/2020] [Indexed: 12/17/2022] Open
Abstract
Background A comprehensive understanding of host factors modulated by the antiviral cytokine interferon-α (IFNα) is imperative for harnessing its beneficial effects while avoiding its detrimental side-effects during HIV infection. Cytokines modulate host glycosylation which plays a critical role in mediating immunological functions. However, the impact of IFNα on host glycosylation has never been characterized. Methods We assessed the impact of pegylated IFNα2a on IgG glycome, as well as CD8+ T and NK cell-surface glycomes, of 18 HIV-infected individuals on suppressive antiretroviral therapy. We linked these glycomic signatures to changes in inflammation, CD8+ T and NK cell phenotypes, and HIV DNA. Findings We identified significant interactions that support a model in which a) IFNα increases the proportion of pro-inflammatory, bisecting GlcNAc glycans (known to enhance FcγR binding) within the IgG glycome, which in turn b) increases inflammation, which c) leads to poor CD8+ T cell phenotypes and poor IFNα-mediated reduction of HIV DNA. Examining cell-surface glycomes, IFNα increases levels of the immunosuppressive GalNAc-containing glycans (T/Tn antigens) on CD8+ T cells. This induction is associated with lower HIV-gag-specific CD8+ T cell functions. Last, IFNα increases levels of fucose on NK cells. This induction is associated with higher NK functions upon K562 stimulation. Interpretation IFNα causes host glycomic alterations that are known to modulate immunological responses. These alterations are associated with both detrimental and beneficial consequences of IFNα. Manipulating host glycomic interactions may represent a strategy for enhancing the positive effects of IFNα while avoiding its detrimental side-effects. Funding NIH grants R21AI143385, U01AI110434.
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16
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Clementi N, Ferrarese R, Criscuolo E, Diotti RA, Castelli M, Scagnolari C, Burioni R, Antonelli G, Clementi M, Mancini N. Interferon-β-1a Inhibition of Severe Acute Respiratory Syndrome-Coronavirus 2 In Vitro When Administered After Virus Infection. J Infect Dis 2020; 222:722-725. [PMID: 32559285 PMCID: PMC7337790 DOI: 10.1093/infdis/jiaa350] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/15/2020] [Indexed: 12/23/2022] Open
Abstract
The ongoing coronavirus disease 2019 pandemic has forced the clinical and scientific community to try drug repurposing of existing antiviral agents as a quick option against severe acute respiratory syndrome–coronavirus 2 (SARS-CoV-2). Under this scenario, interferon (IFN) β-1a, whose antiviral potential is already known, and which is a drug currently used in the clinical management of multiple sclerosis, may represent as a potential candidate. In this report, we demonstrate that IFN-β-1a was highly effective in inhibiting in vitro SARS-CoV-2 replication at clinically achievable concentration when administered after virus infection.
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Affiliation(s)
- Nicola Clementi
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Roberto Ferrarese
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy
| | - Elena Criscuolo
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy
| | - Roberta Antonia Diotti
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy
| | - Matteo Castelli
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy
| | - Carolina Scagnolari
- Laboratory of Virology, Department of Molecular Medicine, and Institute Pasteur Italia-Cenci Bolognetti Foundation, Sapienza University, Rome, Italy
| | - Roberto Burioni
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy
| | - Guido Antonelli
- Laboratory of Virology, Department of Molecular Medicine, and Institute Pasteur Italia-Cenci Bolognetti Foundation, Sapienza University, Rome, Italy
| | - Massimo Clementi
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Nicasio Mancini
- Laboratory of Microbiology and Virology, Università Vita-Salute San Raffaele, Milan, Italy.,Laboratory of Microbiology and Virology, IRCCS Ospedale San Raffaele, Milan, Italy
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17
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High abundance of genus Prevotella is associated with dysregulation of IFN-I and T cell response in HIV-1-infected patients. AIDS 2020; 34:1467-1473. [PMID: 32675560 DOI: 10.1097/qad.0000000000002574] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE HIV-1-associated dysbiosis is most commonly characterized by overall decreased diversity, with abundance of the genus Prevotella, recently related to inflammatory responses. DESIGN A pilot study including 10 antiretroviral therapy-treated HIV-1-infected men and 50 uninfected controls was performed to identify the main gut dysbiosis determinants (e.g. Prevotella enrichment), that may affect mucosal antiviral defenses and T cell immunity in HIV-1-infected individuals. METHODS 16rRNA gene sequencing was applied to the HIV-1-infected individuals' fecal microbiota and compared with controls. Measurements of CD4 and CD8 T cell activation [CD38, human leukocyte antigen (HLA)-DR, CD38 HLA-DR] and frequencies of Th17, obtained from lamina propria lymphocytes isolated from five different intestinal sites, were performed by flow cytometry. IFNβ, IFNAR1 and MxA gene expression level was evaluated by real-time PCR in lamina propria lymphocytes. Nonparametric t tests were used for statistical analysis. RESULTS HIV-1-infected men had a significant fecal microbial communities' imbalance, including different levels of genera Faecalibacterium, Prevotella, Alistipes and Bacteroides, compared with controls. Notably, Prevotella abundance positively correlated with frequencies of CD4 T cells expressing CD38 or HLA-DR and coexpressing CD38 and HLA-DR (P < 0.05 for all these measures). The same trend was observed for the activated CD8 T cells. Moreover, Prevotella levels were inversely correlated with IFN-I genes (P < 0.05 for IFNβ, IFNAR1 and MxA genes) and the frequencies of Th17 cells (P < 0.05). By contrast, no statistically significant correlations were observed for the remaining bacterial genera. CONCLUSION Our findings suggest that Prevotella enrichment might affect gut mucosal IFN-I pathways and T cell response in HIV-1-infected patients, thus contributing to immune dysfunction.
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18
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Soto JA, Gálvez NMS, Andrade CA, Pacheco GA, Bohmwald K, Berrios RV, Bueno SM, Kalergis AM. The Role of Dendritic Cells During Infections Caused by Highly Prevalent Viruses. Front Immunol 2020; 11:1513. [PMID: 32765522 PMCID: PMC7378533 DOI: 10.3389/fimmu.2020.01513] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 06/09/2020] [Indexed: 12/12/2022] Open
Abstract
Dendritic cells (DCs) are a type of innate immune cells with major relevance in the establishment of an adaptive response, as they are responsible for the activation of lymphocytes. Since their discovery, several reports of their role during infectious diseases have been performed, highlighting their functions and their mechanisms of action. DCs can be categorized into different subsets, and each of these subsets expresses a wide arrange of receptors and molecules that aid them in the clearance of invading pathogens. Interferon (IFN) is a cytokine -a molecule of protein origin- strongly associated with antiviral immune responses. This cytokine is secreted by different cell types and is fundamental in the modulation of both innate and adaptive immune responses against viral infections. Particularly, DCs are one of the most important immune cells that produce IFN, with type I IFNs (α and β) highlighting as the most important, as they are associated with viral clearance. Type I IFN secretion can be induced via different pathways, activated by various components of the virus, such as surface proteins or genetic material. These molecules can trigger the activation of the IFN pathway trough surface receptors, including IFNAR, TLR4, or some intracellular receptors, such as TLR7, TLR9, and TLR3. Here, we discuss various types of dendritic cells found in humans and mice; their contribution to the activation of the antiviral response triggered by the secretion of IFN, through different routes of the induction for this important antiviral cytokine; and as to how DCs are involved in human infections that are considered highly frequent nowadays.
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Affiliation(s)
- Jorge A Soto
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Instituto Milenio de Inmunología e Inmunoterapia, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Nicolas M S Gálvez
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Instituto Milenio de Inmunología e Inmunoterapia, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Catalina A Andrade
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Instituto Milenio de Inmunología e Inmunoterapia, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Gaspar A Pacheco
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Instituto Milenio de Inmunología e Inmunoterapia, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Karen Bohmwald
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Instituto Milenio de Inmunología e Inmunoterapia, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Roslye V Berrios
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Instituto Milenio de Inmunología e Inmunoterapia, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Instituto Milenio de Inmunología e Inmunoterapia, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Instituto Milenio de Inmunología e Inmunoterapia, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Instituto Milenio de Inmunología e Inmunoterapia, Pontificia Universidad Católica de Chile, Santiago, Chile
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19
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Type I interferons can be detected in respiratory swabs from SARS-Cov-2 infected patients. J Clin Virol 2020; 128:104450. [PMID: 32464309 PMCID: PMC7237947 DOI: 10.1016/j.jcv.2020.104450] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/14/2020] [Accepted: 05/17/2020] [Indexed: 02/04/2023]
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20
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Ouyang H, Zhou Z, Zheng Q, Zhang J. Analyzing Functional Pathways and constructing gene-gene network for Narcolepsy based on candidate genes. Int J Med Sci 2020; 17:1508-1514. [PMID: 32669953 PMCID: PMC7359385 DOI: 10.7150/ijms.41812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 05/15/2020] [Indexed: 12/02/2022] Open
Abstract
Aims: To investigate the interactions among narcolepsy-associated genes and reveal the pathways these genes involved through bioinformatics analyses. Methods: The study was performed with the following steps: 1) Selected the previously discovered narcolepsy risk genes through literature review, 2) pathway enrichment analysis, and construction of gene-gene and protein-protein interaction (PPI) networks for narcolepsy. Results: 1) GO analysis revealed the positive regulation of interferon-gamma production as the most enriched terms in biological process, and C-C chemokine receptor activity as the most enriched term in molecular function, 2) KEGG pathway enrichment analysis revealed selective enrichment of genes in cytokine-cytokine receptor interaction signaling pathways, and 3) five hub genes were identified (IFNAR1, IL10RB, DNMT1, TNFSF4 and NFATC2). Conclusion: The bioinformatics results provide new insights into the molecular pathogenesis of narcolepsy and the identification of potential therapeutic targets for narcolepsy treatment.
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Affiliation(s)
- Hui Ouyang
- Department of Neuromedicine, Peking University People's Hospital, Beijing, China
| | - Zechen Zhou
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Qiwen Zheng
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Jun Zhang
- Department of Neuromedicine, Peking University People's Hospital, Beijing, China
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21
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Bertram KM, Tong O, Royle C, Turville SG, Nasr N, Cunningham AL, Harman AN. Manipulation of Mononuclear Phagocytes by HIV: Implications for Early Transmission Events. Front Immunol 2019; 10:2263. [PMID: 31616434 PMCID: PMC6768965 DOI: 10.3389/fimmu.2019.02263] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 09/09/2019] [Indexed: 12/11/2022] Open
Abstract
Mononuclear phagocytes are antigen presenting cells that play a key role in linking the innate and adaptive immune systems. In tissue, these consist of Langerhans cells, dendritic cells and macrophages, all of which express the key HIV entry receptors CD4 and CCR5 making them directly infectible with HIV. Mononuclear phagocytes are the first cells of the immune system to interact with invading pathogens such as HIV. Each cell type expresses a specific repertoire of pathogen binding receptors which triggers pathogen uptake and the release of innate immune cytokines. Langerhans cells and dendritic cells migrate to lymph nodes and present antigens to CD4 T cells, whereas macrophages remain tissue resident. Here we review how HIV-1 manipulates these cells by blocking their ability to produce innate immune cytokines and taking advantage of their antigen presenting cell function in order to gain transport to its primary target cells, CD4 T cells.
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Affiliation(s)
- Kirstie Melissa Bertram
- School of Medical Sciences, University of Sydney, Sydney, NSW, Australia.,Center for Virus Research, The Westmead Institute for Medical Research, Sydney, NSW, Australia
| | - Orion Tong
- School of Medical Sciences, University of Sydney, Sydney, NSW, Australia.,Center for Virus Research, The Westmead Institute for Medical Research, Sydney, NSW, Australia
| | - Caroline Royle
- School of Medical Sciences, University of Sydney, Sydney, NSW, Australia.,Center for Virus Research, The Westmead Institute for Medical Research, Sydney, NSW, Australia
| | - Stuart Grant Turville
- HIV Biology, Kirby Institute, Kensington, NSW, Australia.,The University of New South Whales, Sydney, NSW, Australia
| | - Najla Nasr
- School of Medical Sciences, University of Sydney, Sydney, NSW, Australia.,Center for Virus Research, The Westmead Institute for Medical Research, Sydney, NSW, Australia
| | - Anthony Lawrence Cunningham
- School of Medical Sciences, University of Sydney, Sydney, NSW, Australia.,Center for Virus Research, The Westmead Institute for Medical Research, Sydney, NSW, Australia
| | - Andrew Nicholas Harman
- School of Medical Sciences, University of Sydney, Sydney, NSW, Australia.,Center for Virus Research, The Westmead Institute for Medical Research, Sydney, NSW, Australia
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22
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Ceccarelli G, Statzu M, Santinelli L, Pinacchio C, Bitossi C, Cavallari EN, Vullo V, Scagnolari C, d'Ettorre G. Challenges in the management of HIV infection: update on the role of probiotic supplementation as a possible complementary therapeutic strategy for cART treated people living with HIV/AIDS. Expert Opin Biol Ther 2019; 19:949-965. [PMID: 31260331 DOI: 10.1080/14712598.2019.1638907] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Introduction: Recent insights show that gut-mucosal immunity and intestinal microbiota play a key role in the pathogenesis of HIV infection. Alterations in the composition of intestinal flora (dysbiosis) could be associated with an impaired intestinal epithelium barrier activity and an impaired mucosal immunity function, significantly contributing to microbial translocation which is considered a major driver of chronic immune activation. Areas covered: This article provides an overview on the novel trends in probiotic therapy application. A particular emphasis is addressed to the importance of probiotics as a novel strategy to attenuate or prevent gastrointestinal involvement and to improve gut-mucosal immunity in HIV-infected subjects. Therefore, opportunities, limits and methodological criticalities of supplementation with probiotic therapy are considered and analyzed. Expert opinion: Use of probiotics is emerging as a novel strategy to manage dysbiosis and gut-mucosal impairment, to reduce immune activation and to limit a number of non-AIDS-related disorders. However, despite the growing use of probiotic therapy, mechanisms by which oral bacteria intake exhibits its effects are strain-related and disease-specific, hence clinicians need to take these two factors into consideration when suggesting probiotic supplementation to HIV-infected patients.
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Affiliation(s)
- Giancarlo Ceccarelli
- a Department of Public Health and Infectious Diseases, Sapienza University of Rome , Rome , Italy
| | - Maura Statzu
- b Laboratory of Virology, Department of Molecular Medicine, affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome , Rome , Italy
| | - Letizia Santinelli
- b Laboratory of Virology, Department of Molecular Medicine, affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome , Rome , Italy
| | - Claudia Pinacchio
- a Department of Public Health and Infectious Diseases, Sapienza University of Rome , Rome , Italy
| | - Camilla Bitossi
- b Laboratory of Virology, Department of Molecular Medicine, affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome , Rome , Italy
| | - Eugenio Nelson Cavallari
- a Department of Public Health and Infectious Diseases, Sapienza University of Rome , Rome , Italy
| | - Vincenzo Vullo
- a Department of Public Health and Infectious Diseases, Sapienza University of Rome , Rome , Italy
| | - Carolina Scagnolari
- b Laboratory of Virology, Department of Molecular Medicine, affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome , Rome , Italy
| | - GabrieIla d'Ettorre
- a Department of Public Health and Infectious Diseases, Sapienza University of Rome , Rome , Italy
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23
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Santinelli L, Statzu M, Pierangeli A, Frasca F, Bressan A, Pinacchio C, Nonne C, Turriziani O, Antonelli G, d'Ettorre G, Scagnolari C. Increased expression of IL-32 correlates with IFN-γ, Th1 and Tc1 in virologically suppressed HIV-1-infected patients. Cytokine 2019; 120:273-281. [PMID: 30910260 DOI: 10.1016/j.cyto.2019.01.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 01/07/2019] [Accepted: 01/27/2019] [Indexed: 02/06/2023]
Abstract
Following recent attention focused on IL-32 as an important component involved in the inflammatory cytokine network, we speculated that IL-32's action on IFN-γ and IFN-γ secreting T cell subsets may help sustain the immune activation and dysregulation found in patients with HIV-1 achieving viral suppression. To explore this hypothesis, transcript levels of IL-32 and IFN-γ were evaluated in PBMC from 139 virologically suppressed HIV-1-infected patients and from 63 healthy individuals by Real Time RT-PCR assays. IL-32 and IFN-γ mRNA levels were also analyzed in CD4+ T cells, CD14+ monocytes and lamina propria lymphocytes (LPL) of the gut district in a subgroup of HIV-1-infected subjects. IFN-γ secreting CD4+ (Th1) and CD8+ (Tc1) T cell subset frequencies were evaluated in LPL by multiparametric flow cytometry. Gene expression results revealed that IL-32 and IFN-γ levels in PBMC from HIV-1-positive patients were significantly elevated compared to those from healthy donors, correlated with each other and increased with patient age. Both IL-32 and IFN-γ genes were also more strongly expressed in CD4+ T cells than in CD14+ monocytes. By contrast, IL-32 levels in LPL were comparable to those measured in PBMC, while IFN-γ levels were higher in PBMC than those in LPL. Negative correlations were found between IL-32 levels and the frequencies of Th1 and Tc1 subsets in gut mucosa. Collectively, our results provide the first evidence that IL-32 levels remain elevated in treated HIV-1-infected patients and correlate with IFN-γ, Th1 and Tc1 subsets.
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Affiliation(s)
- Letizia Santinelli
- Laboratory of Virology, Department of Molecular Medicine, Affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy.
| | - Maura Statzu
- Laboratory of Virology, Department of Molecular Medicine, Affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy.
| | - Alessandra Pierangeli
- Laboratory of Virology, Department of Molecular Medicine, Affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy.
| | - Federica Frasca
- Laboratory of Virology, Department of Molecular Medicine, Affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy.
| | - Alessia Bressan
- Laboratory of Virology, Department of Molecular Medicine, Affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy; Microbiology and Virology Unit, Sapienza University Hospital, Rome, Italy.
| | - Claudia Pinacchio
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy.
| | - Chiara Nonne
- Laboratory of Virology, Department of Molecular Medicine, Affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy.
| | - Ombretta Turriziani
- Laboratory of Virology, Department of Molecular Medicine, Affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy.
| | - Guido Antonelli
- Laboratory of Virology, Department of Molecular Medicine, Affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy; Microbiology and Virology Unit, Sapienza University Hospital, Rome, Italy.
| | - Gabriella d'Ettorre
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy.
| | - Carolina Scagnolari
- Laboratory of Virology, Department of Molecular Medicine, Affiliated to Istituto Pasteur Italia - Cenci Bolognetti Foundation, Sapienza University of Rome, Rome, Italy.
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24
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Joshi A, Punke EB, Mehmetoglu-Gurbuz T, Peralta DP, Garg H. TLR9 polymorphism correlates with immune activation, CD4 decline and plasma IP10 levels in HIV patients. BMC Infect Dis 2019; 19:56. [PMID: 30651082 PMCID: PMC6335820 DOI: 10.1186/s12879-019-3697-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 01/09/2019] [Indexed: 12/31/2022] Open
Abstract
Background The mechanism behind HIV mediated immune activation remains debated, although the role of virus replication in this process is increasingly evident. Toll like Receptor 9 (TLR9) has been implicated in HIV mediated immune activation via sensing of viral CpG DNA. Polymorphisms in the TLR9 gene and promoter region including TLR9 1635A/G and 1486C/T have been found to be associated with multiple infectious diseases and cancers. Methods In the current study, we looked at the correlation of TLR9 polymorphisms 1635A/G and 1486C/T with key hallmarks of HIV disease in a cohort of 50 HIV infected patients. We analyzed CD4 counts, T cell immune activation characterized by upregulation of CD38 and HLA-DR and upregulation of plasma biomarkers of inflammation like LPS, sCD14, IL-6 and IP10 in the HIV patient cohort and compared it to healthy controls. Results We found that TLR9 1635AA genotype was associated with lower CD4 counts and significantly higher immune activation in both CD4+ and CD8+ T cells. Analysis of HIV associated plasma biomarkers including LPS, sCD14, IL-6 and IP10 revealed a strong correlation between IP10 and immune activation. Interestingly, IP10 levels were also found to be higher in HIV patients with the 1635AA genotype. Furthermore, the TLR9 1486C/T polymorphism that is in linkage disequilibrium with 1635A/G was weakly associated with lower CD4 counts, higher CD8 immune activation and higher IP10 levels. Conclusions As TLR9 stimulation is known to induce IP10 production by dendritic cells, our findings provide new insights into HIV mediated immune activation and CD4 loss. TLR9 stimulation by viral CpG DNA may be important to HIV immunopathogenesis and the TLR9 polymorphisms 1635A/G and 1486C/T may be associated with disease progression.
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Affiliation(s)
- Anjali Joshi
- Department of Biomedical Sciences, Center of Emphasis in Infectious Diseases, Texas Tech University Health Sciences Center, 5001 El Paso Dr, El Paso, TX, 79905, USA
| | - Erin B Punke
- Department of Biomedical Sciences, Center of Emphasis in Infectious Diseases, Texas Tech University Health Sciences Center, 5001 El Paso Dr, El Paso, TX, 79905, USA
| | - Tugba Mehmetoglu-Gurbuz
- Department of Biomedical Sciences, Center of Emphasis in Infectious Diseases, Texas Tech University Health Sciences Center, 5001 El Paso Dr, El Paso, TX, 79905, USA
| | - Diego P Peralta
- Division of Infectious Diseases, Department of Internal Medicine, Texas Tech University Health Sciences Center, El Paso, TX, 79905, USA
| | - Himanshu Garg
- Department of Biomedical Sciences, Center of Emphasis in Infectious Diseases, Texas Tech University Health Sciences Center, 5001 El Paso Dr, El Paso, TX, 79905, USA.
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25
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Fernandes N, Pulliam L. Inflammatory Mechanisms and Cascades Contributing to Neurocognitive Impairment in HIV/AIDS. Curr Top Behav Neurosci 2019; 50:77-103. [PMID: 31385260 DOI: 10.1007/7854_2019_100] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Neurocognitive impairment caused by chronic human immunodeficiency virus (HIV) infection is a growing concern. In this chapter we discuss the inflammatory mechanisms underlying the pathology of asymptomatic and mild neurocognitive impairment in the context of antiretroviral therapy. We discuss the role of HIV, viral proteins, and virally infected cells on the development of neuroinflammation and the effect of viral proteins on the cells of the central nervous system.We examine how these collective factors result in an inflammatory context that triggers the development of neurocognitive impairment in HIV. We assess the contribution of antiretrovirals and drugs of abuse, including methamphetamine, cannabis, and opioids, to the neurotoxic and neuroinflammatory milieu that leads to the development of neurocognitive impairment in HIV-infected individuals. We also examined circulating biomarkers, NF-L, sCD163, and sCD14, pertinent to identifying changes in the CNS that could indicate real-time changes in patient physiology. Lastly, we discuss future studies, such as exosomes and the microbiome, which could play a role in the HIV-induced neuroinflammation that eventually manifests as cognitive impairment.
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Affiliation(s)
- Nicole Fernandes
- Department of Laboratory Medicine, San Francisco VA Health Care System, San Francisco, CA, USA.,University of California, San Francisco, San Francisco, CA, USA
| | - Lynn Pulliam
- Department of Laboratory Medicine, San Francisco VA Health Care System, San Francisco, CA, USA. .,University of California, San Francisco, San Francisco, CA, USA.
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26
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Increased SAMHD1 transcript expression correlates with interferon-related genes in HIV-1-infected patients. Med Microbiol Immunol 2018; 208:679-691. [PMID: 30564919 DOI: 10.1007/s00430-018-0574-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 11/24/2018] [Indexed: 01/12/2023]
Abstract
PURPOSE To investigate the contribution of SAMHD1 to HIV-1 infection in vivo and its relationship with IFN response, the expression of SAMHD1 and IFN-related pathways was evaluated in HIV-1-infected patients. METHODS Peripheral blood mononuclear cells (PBMC) from 388 HIV-1-infected patients, both therapy naïve (n = 92) and long-term HAART treated (n = 296), and from 100 gender and age-matched healthy individuals were examined. CD4+ T cells, CD14+ monocytes and gut biopsies were also analyzed in HIV-1-infected subjects on suppressive antiretroviral therapy. Gene expression levels of SAMDH1, ISGs (MxA, MxB, HERC5, IRF7) and IRF3 were evaluated by real-time RT-PCR assays. RESULTS SAMHD1 levels in HIV-1-positive patients were significantly increased compared to those in healthy donors. SAMHD1 expression was enhanced in treated patients compared to naïve patients (p < 0.0001) and healthy donors (p = 0.0038). Virologically suppressed treated patients exhibited higher SAMHD1 levels than healthy donors (p = 0.0008), viraemic patients (p = 0.0001) and naïve patients (p < 0.0001). SAMHD1 levels were also increased in CD4+ T cells compared to those in CD14+ monocytes and in PBMC compared to those of GALT. Moreover, SAMHD1 was expressed more strongly than ISGs in HIV-1-infected patients and positive correlations were found between SAMHD1, ISGs and IRF3 levels. CONCLUSIONS SAMHD1 is more strongly expressed than the classical IFN-related genes, increased during antiretroviral therapy and correlated with ISGs and IRF3 in HIV-1-infected patients.
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