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Obare LM, Temu T, Mallal SA, Wanjalla CN. Inflammation in HIV and Its Impact on Atherosclerotic Cardiovascular Disease. Circ Res 2024; 134:1515-1545. [PMID: 38781301 PMCID: PMC11122788 DOI: 10.1161/circresaha.124.323891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
People living with HIV have a 1.5- to 2-fold increased risk of developing cardiovascular disease. Despite treatment with highly effective antiretroviral therapy, people living with HIV have chronic inflammation that makes them susceptible to multiple comorbidities. Several factors, including the HIV reservoir, coinfections, clonal hematopoiesis of indeterminate potential (CHIP), microbial translocation, and antiretroviral therapy, may contribute to the chronic state of inflammation. Within the innate immune system, macrophages harbor latent HIV and are among the prominent immune cells present in atheroma during the progression of atherosclerosis. They secrete inflammatory cytokines such as IL (interleukin)-6 and tumor necrosis-α that stimulate the expression of adhesion molecules on the endothelium. This leads to the recruitment of other immune cells, including cluster of differentiation (CD)8+ and CD4+ T cells, also present in early and late atheroma. As such, cells of the innate and adaptive immune systems contribute to both systemic inflammation and vascular inflammation. On a molecular level, HIV-1 primes the NLRP3 (NLR family pyrin domain containing 3) inflammasome, leading to an increased expression of IL-1β, which is important for cardiovascular outcomes. Moreover, activation of TLRs (toll-like receptors) by HIV, gut microbes, and substance abuse further activates the NLRP3 inflammasome pathway. Finally, HIV proteins such as Nef (negative regulatory factor) can inhibit cholesterol efflux in monocytes and macrophages through direct action on the cholesterol transporter ABCA1 (ATP-binding cassette transporter A1), which promotes the formation of foam cells and the progression of atherosclerotic plaque. Here, we summarize the stages of atherosclerosis in the context of HIV, highlighting the effects of HIV, coinfections, and antiretroviral therapy on cells of the innate and adaptive immune system and describe current and future interventions to reduce residual inflammation and improve cardiovascular outcomes among people living with HIV.
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Affiliation(s)
- Laventa M. Obare
- Division of Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN (L.M.O., S.A.M., C.N.W.)
| | - Tecla Temu
- Department of Pathology, Harvard Medical School, Boston, MA (T.T.)
| | - Simon A. Mallal
- Division of Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN (L.M.O., S.A.M., C.N.W.)
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN (S.A.M.)
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, TN (S.A.M.)
- Institute for Immunology and Infectious Diseases, Murdoch University, WA, Western Australia (S.A.M.)
| | - Celestine N. Wanjalla
- Division of Infectious Diseases, Vanderbilt University Medical Center, Nashville, TN (L.M.O., S.A.M., C.N.W.)
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Casado-Fernández G, Cantón J, Nasarre L, Ramos-Martín F, Manzanares M, Sánchez-Menéndez C, Fuertes D, Mateos E, Murciano-Antón MA, Pérez-Olmeda M, Cervero M, Torres M, Rodríguez-Rosado R, Coiras M. Pre-existing cell populations with cytotoxic activity against SARS-CoV-2 in people with HIV and normal CD4/CD8 ratio previously unexposed to the virus. Front Immunol 2024; 15:1362621. [PMID: 38812512 PMCID: PMC11133563 DOI: 10.3389/fimmu.2024.1362621] [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: 12/28/2023] [Accepted: 05/01/2024] [Indexed: 05/31/2024] Open
Abstract
Introduction HIV-1 infection may produce a detrimental effect on the immune response. Early start of antiretroviral therapy (ART) is recommended to preserve the integrity of the immune system. In fact, people with HIV (PWH) and normal CD4/CD8 ratio appear not to be more susceptible to severe forms of COVID-19 than the general population and they usually present a good seroconversion rate in response to vaccination against SARS-CoV-2. However, few studies have fully characterized the development of cytotoxic immune populations in response to COVID-19 vaccination in these individuals. Methods In this study, we recruited PWH with median time of HIV-1 infection of 6 years, median CD4/CD8 ratio of 1.0, good adherence to ART, persistently undetectable viral load, and negative serology against SARS-CoV-2, who then received the complete vaccination schedule against COVID-19. Blood samples were taken before vaccination against COVID-19 and one month after receiving the complete vaccination schedule. Results PWH produced high levels of IgG against SARS-CoV-2 in response to vaccination that were comparable to healthy donors, with a significantly higher neutralization capacity. Interestingly, the cytotoxic activity of PBMCs from PWH against SARS-CoV-2-infected cells was higher than healthy donors before receiving the vaccination schedule, pointing out the pre-existence of activated cell populations with likely unspecific antiviral activity. The characterization of these cytotoxic cell populations revealed high levels of Tgd cells with degranulation capacity against SARS-CoV-2-infected cells. In response to vaccination, the degranulation capacity of CD8+ T cells also increased in PWH but not in healthy donors. Discussion The full vaccination schedule against COVID-19 did not modify the ability to respond against HIV-1-infected cells in PWH and these individuals did not show more susceptibility to breakthrough infection with SARS-CoV-2 than healthy donors after 12 months of follow-up. These results revealed the development of protective cell populations with broad-spectrum antiviral activity in PWH with normal CD4/CD8 ratio and confirmed the importance of early ART and treatment adherence to avoid immune dysfunctions.
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Affiliation(s)
- Guiomar Casado-Fernández
- Immunopathology and Viral Reservoir Unit, National Center of Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
- PhD Program in Health Sciences, Faculty of Sciences, Universidad de Alcalá, Alcalá de Henares, Spain
| | - Juan Cantón
- PhD Program in Health Sciences, Faculty of Sciences, Universidad de Alcalá, Alcalá de Henares, Spain
- Internal Medicine Service, Hospital Universitario Severo Ochoa, Leganés, Madrid, Spain
| | - Laura Nasarre
- Immunopathology and Viral Reservoir Unit, National Center of Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Fernando Ramos-Martín
- Immunopathology and Viral Reservoir Unit, National Center of Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Mario Manzanares
- Immunopathology and Viral Reservoir Unit, National Center of Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
- PhD Program in Biomedical Sciences and Public Health, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
| | - Clara Sánchez-Menéndez
- Immunopathology and Viral Reservoir Unit, National Center of Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
- PhD Program in Biomedical Sciences and Public Health, Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain
- Hematology and Hemotherapy Service, Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Hospital Universitario Ramón y Cajal, Madrid, Spain
| | - Daniel Fuertes
- School of Telecommunications Engineering, Universidad Politécnica de Madrid, Madrid, Spain
| | - Elena Mateos
- Immunopathology and Viral Reservoir Unit, National Center of Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
- Biomedical Research Center Network in Infectious Diseases [Centro de Investigación Biomédica en Red Enfermedades Infecciosas (CIBERINFEC)], Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - María Aranzazu Murciano-Antón
- Family Medicine, Centro de Salud Doctor Pedro Laín Entralgo, Alcorcón, Madrid, Spain
- International PhD School, Universidad Rey Juan Carlos, Alcorcón, Madrid, Spain
| | - Mayte Pérez-Olmeda
- Biomedical Research Center Network in Infectious Diseases [Centro de Investigación Biomédica en Red Enfermedades Infecciosas (CIBERINFEC)], Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
- Serology Service, Instituto de Salud Carlos III, Madrid, Spain
| | - Miguel Cervero
- Internal Medicine Service, Hospital Universitario Severo Ochoa, Leganés, Madrid, Spain
- School of Medicine, Universidad Alfonso X El Sabio, Madrid, Spain
| | - Montserrat Torres
- Immunopathology and Viral Reservoir Unit, National Center of Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
- Biomedical Research Center Network in Infectious Diseases [Centro de Investigación Biomédica en Red Enfermedades Infecciosas (CIBERINFEC)], Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - Rafael Rodríguez-Rosado
- Internal Medicine Service, Hospital Universitario Severo Ochoa, Leganés, Madrid, Spain
- School of Medicine, Universidad Alfonso X El Sabio, Madrid, Spain
| | - Mayte Coiras
- Immunopathology and Viral Reservoir Unit, National Center of Microbiology, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
- Biomedical Research Center Network in Infectious Diseases [Centro de Investigación Biomédica en Red Enfermedades Infecciosas (CIBERINFEC)], Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
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Yu F, Ma C, Jin X, Zhao H, Xiao J, Li L, Song S, Xie X, Yang S, Tang Y, Wang L, Zhang F. Mitochondrial disturbance related to increased caspase-1 of CD4 +T cells in HIV-1 infection. BMC Infect Dis 2024; 24:129. [PMID: 38267841 PMCID: PMC10809604 DOI: 10.1186/s12879-023-08485-5] [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: 03/20/2023] [Accepted: 07/26/2023] [Indexed: 01/26/2024] Open
Abstract
BACKGROUND In HIV-1 infection, more than 95% of CD4+T cells die of caspase-1 mediated pyroptosis. What governs the increased susceptibility of CD4+T cells to pyroptosis is poorly understood. METHODS Blood samples were obtained from 31 untreated HIV-infected patients (UNT), 29 antiretroviral therapy treated HIV-infected patients (ART), and 21 healthy control donors (HD). Plasma levels of IL-18 and IL-1β, caspase-1 expression, mitochondrial mass (MM) and mitochondrial fusion/fisson genes of CD4+T subsets were measured. RESULTS A significantly higher IL-18 level in plasma and MM level of CD4+T cells were found in HIV-infected patients (UNT and ART) compared to HD, and the MMhigh phenotype was manifested, related to increased caspase-1 expression. Moreover, the increased MM was more pronounced in the early differentiated and inactivated CD4+T cells. However, higher MM was not intrinsically linked to T cell differentiation disorder or excessive activation of the CD4+T cells. Mechanistically, the increased MM was significantly correlated with an elevated level of expression of the mitochondrial fusion gene mitofusin1. CONCLUSION An increase in MM was associated with heightened sensitivity of CD4+T cells to pyroptosis, even in early differentiated and inactivated CD4+T cells, in patients with HIV-1 infection, regardless of whether patients were on antiretroviral therapy or not. These new revelations have uncovered a previously unappreciated challenge to immune reconstitution with antiretroviral therapy.
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Affiliation(s)
- Fengting Yu
- Medical School, University of Chinese Academy of Sciences, Beijing, 101400, China
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, China
| | - Chengjie Ma
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, China
| | - Xia Jin
- Human Viral Diseases and Vaccine Translation Research Unit, Key Laboratory of Molecular Virology & Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Hongxin Zhao
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, China
| | - Jiang Xiao
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, China
| | - Li Li
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, China
| | - Shujing Song
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Xiaohui Xie
- Department of Infectious Diseases, Peking University Ditan Teaching, Hospital, Beijing, China
| | - Siyuan Yang
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, China
| | - Yunxia Tang
- Beijing Ditan Hospital, Capital Medical University, Beijing, China
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, China
| | - Linghang Wang
- Beijing Ditan Hospital, Capital Medical University, Beijing, China.
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, China.
| | - Fujie Zhang
- Medical School, University of Chinese Academy of Sciences, Beijing, 101400, China.
- Beijing Ditan Hospital, Capital Medical University, Beijing, China.
- Clinical Center for HIV/AIDS, Capital Medical University, Beijing, China.
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Diakite M, Shaw-Saliba K, Lau CY. Malignancy and viral infections in Sub-Saharan Africa: A review. FRONTIERS IN VIROLOGY (LAUSANNE, SWITZERLAND) 2023; 3:1103737. [PMID: 37476029 PMCID: PMC10358275 DOI: 10.3389/fviro.2023.1103737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 07/22/2023]
Abstract
The burden of malignancy related to viral infection is increasing in Sub-Saharan Africa (SSA). In 2018, approximately 2 million new cancer cases worldwide were attributable to infection. Prevention or treatment of these infections could reduce cancer cases by 23% in less developed regions and about 7% in developed regions. Contemporaneous increases in longevity and changes in lifestyle have contributed to the cancer burden in SSA. African hospitals are reporting more cases of cancer related to infection (e.g., cervical cancer in women and stomach and liver cancer in men). SSA populations also have elevated underlying prevalence of viral infections compared to other regions. Of 10 infectious agents identified as carcinogenic by the International Agency for Research on Cancer, six are viruses: hepatitis B and C viruses (HBV and HCV, respectively), Epstein-Barr virus (EBV), high-risk types of human papillomavirus (HPV), Human T-cell lymphotropic virus type 1 (HTLV-1), and Kaposi's sarcoma herpesvirus (KSHV, also known as human herpesvirus type 8, HHV-8). Human immunodeficiency virus type 1 (HIV) also facilitates oncogenesis. EBV is associated with lymphomas and nasopharyngeal carcinoma; HBV and HCV are associated with hepatocellular carcinoma; KSHV causes Kaposi's sarcoma; HTLV-1 causes T-cell leukemia and lymphoma; HPV causes carcinoma of the oropharynx and anogenital squamous cell cancer. HIV-1, for which SSA has the greatest global burden, has been linked to increasing risk of malignancy through immunologic dysregulation and clonal hematopoiesis. Public health approaches to prevent infection, such as vaccination, safer injection techniques, screening of blood products, antimicrobial treatments and safer sexual practices could reduce the burden of cancer in Africa. In SSA, inequalities in access to cancer screening and treatment are exacerbated by the perception of cancer as taboo. National level cancer registries, new screening strategies for detection of viral infection and public health messaging should be prioritized in SSA's battle against malignancy. In this review, we discuss the impact of carcinogenic viruses in SSA with a focus on regional epidemiology.
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Affiliation(s)
- Mahamadou Diakite
- University Clinical Research Center, University of Sciences, Techniques, and Technologies, Bamako, Mali
| | - Kathryn Shaw-Saliba
- Collaborative Clinical Research Branch, Division of Clinical Research, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, United States
| | - Chuen-Yen Lau
- HIV Dynamics and Replication Program, National Cancer Institute (NCI), National Institutes of Health (NIH), Bethesda, MD, United States
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SARS-CoV-2 Vaccine-Induced T-Cell Response after Three Doses in People Living with HIV on Antiretroviral Therapy Compared to Seronegative Controls (CTN 328 COVAXHIV Study). Viruses 2023; 15:v15020575. [PMID: 36851789 PMCID: PMC9959053 DOI: 10.3390/v15020575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/14/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023] Open
Abstract
People living with HIV (PLWH) may be at risk for poor immunogenicity to certain vaccines, including the ability to develop immunological memory. Here, we assessed T-cell immunogenicity following three SARS-CoV-2 vaccine doses in PLWH versus uninfected controls. Blood was collected from 38 PLWH on antiretroviral therapy and 24 age-matched HIV-negative controls, pre-vaccination and after 1st/2nd/3rd dose of SARS-CoV-2 vaccines, without prior SARS-CoV-2 infection. Flow cytometry was used to assess ex vivo T-cell immunophenotypes and intracellular Tumor necrosis factor (TNF)-α/interferon(IFN)-γ/interleukin(IL)-2 following SARS-CoV-2-Spike-peptide stimulation. Comparisons were made using Wilcoxon signed-rank test for paired variables and Mann-Whitney for unpaired. In PLWH, Spike-specific CD4 T-cell frequencies plateaued post-2nd dose, with no significant differences in polyfunctional SARS-CoV-2-specific T-cell proportions between PLWH and uninfected controls post-3rd dose. PLWH had higher frequencies of TNFα+CD4 T-cells and lower frequencies of IFNγ+CD8 T-cells than seronegative participants post-3rd dose. Regardless of HIV status, an increase in naive, regulatory, and PD1+ T-cell frequencies was observed post-3rd dose. In summary, two doses of SARS-CoV-2 vaccine induced a robust T-cell immune response in PLWH, which was maintained after the 3rd dose, with no significant differences in polyfunctional SARS-CoV-2-specific T-cell proportions between PLWH and uninfected controls post-3rd dose.
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6
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Petkov S, Chiodi F. Impaired CD4+ T cell differentiation in HIV-1 infected patients receiving early anti-retroviral therapy. Genomics 2022; 114:110367. [PMID: 35429609 DOI: 10.1016/j.ygeno.2022.110367] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 04/01/2022] [Accepted: 04/09/2022] [Indexed: 01/14/2023]
Abstract
Differentiation of CD4+ T naïve (TN) into central memory (TCM) cells involves extensive molecular processes. We compared the transcriptomes of CD4+ TN and TCM cells from HIV-1 infected patients receiving early anti-retroviral therapy (ART; EA; n = 13) and controls (n = 15). Comparison of protein coding genes between TCM and TN revealed 533 and 82 differentially expressed genes (DEGs) in controls and EA, respectively. A high degree of transcriptional complexity was detected during transition of CD4+ TN to TCM cells in controls involving 70 TFs, 20 master regulators of T cell differentiation (TBX21, GATA3, RARA, FOXP3, RORC); in EA only 7 TFs were modulated with expression of several master regulators remaining unchanged during differentiation. Analysis of interactions between modulated TFs and target genes revealed important regulatory interactions missing in EA group. We conclude that T cell differentiation in EA patients is impaired due to reduced modulation of genes involved in transition from CD4+ TN to TCM cells.
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Affiliation(s)
- Stefan Petkov
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Solna, Sweden
| | - Francesca Chiodi
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Solna, Sweden.
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7
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Wang D, Jiang Y, Song Y, Zeng Y, Li C, Wang X, Liu Y, Xiao J, Kong Y, Zhao H. Altered T-Cell Subsets are Associated with Dysregulated Cytokine Secretion of CD4 + T Cells During HIV Infection. J Inflamm Res 2021; 14:5149-5163. [PMID: 34675594 PMCID: PMC8504938 DOI: 10.2147/jir.s333902] [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: 08/17/2021] [Accepted: 09/27/2021] [Indexed: 11/23/2022] Open
Abstract
Background CD4+ T cells play a critical role in the regulation of immunopathogenesis in HIV infection. Previous studies have shown contradictory results of the CD4+ T-cell responses in people living with HIV (PLHIV). Methods A cross-sectional study was performed on 40 healthy controls, 134 ART-naïve PLHIV, and 34 individuals who experienced 3-year ART with low baseline CD4 count from 4 August 2016 to 23 January 2019. We determined the frequencies of CD4+ T-cell subsets and described the cytokine secretion pattern of total and subsets of CD4+ T cells in these individuals. Results We found that CD4+ T cells in PLHIV displayed enhanced secretion of pro-inflammation cytokines and polyfunctionality due to HIV disease progression (r = -0.282, P = 0.0035 for IFN-γ; r = -0.412, P = 0.0002 for TNF-α; r = -0.243, P < 0.0001 for GM-CSF; r = -0.252, P = 0.0093 for IFN-γ+ TNF-α+ cells). However, the altered T-cell subsets, as presented by the loss of naïve cells and expansion of memory/effector population in PLHIV, were associated with discordant results in total and subsets of CD4+ T cells. As major cytokine-producing T subsets, effector/memory CD4 subsets showed impaired cytokine production (P < 0.05). We further demonstrated that 3-year ART treatment could improve CD4 counts by increasing the pool of naïve T cells but could not restore cytokine secretion in CD4+ T-cell subsets (P < 0.05). Conclusion These data identified the impaired capacity of cytokine secretion in CD4+ T-cell subsets due to HIV disease progression, and the altered T-cell subsets were associated with pseudo-elevation of cytokine production in total CD4+ T cells. This study collectively suggested the importance of therapies that can preserve and/or enhance the function of CD4+ T cells in strategies of HIV remission.
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Affiliation(s)
- Di Wang
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yu Jiang
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yangzi Song
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yongqin Zeng
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Cuilin Li
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Xinyue Wang
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Ying Liu
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China.,Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Jiang Xiao
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yaxian Kong
- Beijing Key Laboratory of Emerging Infectious Diseases, Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Hongxin Zhao
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing, People's Republic of China
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Petkov S, Chiodi F. Distinct transcriptomic profiles of naïve CD4+ T cells distinguish HIV-1 infected patients initiating antiretroviral therapy at acute or chronic phase of infection. Genomics 2021; 113:3487-3500. [PMID: 34425224 DOI: 10.1016/j.ygeno.2021.08.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/13/2021] [Accepted: 08/17/2021] [Indexed: 02/07/2023]
Abstract
We analyzed the whole transcriptome characteristics of blood CD4+ T naïve (TN) cells isolated from HIV-1 infected patients starting ART at acute (early ART = EA; n = 13) or chronic (late ART = LA; n = 11) phase of infection and controls (C; n = 15). RNA sequencing revealed 389 differentially expressed genes (DEGs) in EA and 810 in LA group in relation to controls. Comparison of the two groups of patients showed 183 DEGs. We focused on DEGs involved in apoptosis, inflammation and immune response. Clustering showed a poor separation of EA from C suggesting that these two groups present a similar transcriptomic profile of CD4+ TN cells. The comparison of EA and LA patients resulted in a high cluster purity revealing that different biological dysfunctions characterize EA and LA patients. The upregulated expression of several inflammatory chemokine genes distinguished the patient groups from C; CCL2 and CCL7, however, were downregulated in EA compared to LA patients. BCL2, an anti-apoptotic factor pivotal for naïve T cell homeostasis, distinguished both EA and LA from C. The expression of several DEGs involved in different inflammatory processes (TLR4, PTGS2, RAG1, IFNA16) was lower in EA compared LA. We conclude that although the transcriptome of CD4+ TN cells isolated from patients initiating ART at acute infection reveals a more quiescent phenotype, the survival profile of these cells still appears to be affected. Our results show that the detrimental process of inflammation is under more efficient control in EA patients.
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Affiliation(s)
- Stefan Petkov
- Department of Microbiology, Tumor and Cell Biology at Biomedicum, Karolinska Institutet, Solna, Sweden.
| | - Francesca Chiodi
- Department of Microbiology, Tumor and Cell Biology at Biomedicum, Karolinska Institutet, Solna, Sweden.
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9
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Isaguliants M, Nosik M, Karlsen A, Petrakova N, Enaeva M, Lebedeva N, Podchufarova D, Laga V, Gromov K, Nazarov A, Chowdhury S, Sinitsyn M, Sobkin A, Chistyakova N, Aleshina S, Grabarnik A, Palefsky JM. Prevalence and Risk Factors of Infection with High Risk Human Papilloma Viruses among HIV-Positive Women with Clinical Manifestations of Tuberculosis in a Middle-Income Country. Biomedicines 2021; 9:biomedicines9060683. [PMID: 34208764 PMCID: PMC8234035 DOI: 10.3390/biomedicines9060683] [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: 03/30/2021] [Revised: 05/22/2021] [Accepted: 05/27/2021] [Indexed: 12/19/2022] Open
Abstract
Women living with HIV-1 are at high risk of infection with human papillomavirus of high carcinogenic risk (HR HPVs). M. tuberculosis (TB) promotes HPV infection and increases the risk to develop HPV-associated cancer. Our knowledge of persisting HR HPVs genotypes, and of the factors promoting HR HPV infection in people living with HIV-1 with clinical TB manifestations is sparse. Here, we analyzed 58 women living with HIV-1 with clinical TB manifestations (WLWH with TB) followed up in specialized centers in Russia, a middle income country endemic for HIV-1 and TB, for the presence in cervical smears of DNA of twelve HR HPV genotypes. DNA encoding HPV16 E5, E6/E7 was sequenced. Sociodemographic data of patients was collected by questionnaire. All women were at C2-C3 stages of HIV-infection (by CDC). The majority were over 30 years old, had secondary education, were unemployed, had sexual partners, experienced 2–3 pregnancies and at least one abortion, and were smokers. The most prevalent was HPV16 detected in the cervical smears of 38% of study participants. Altogether 34.5% of study participants were positive for HR HPV types other than HPV16; however, but none of these types was seen in more than 7% of tested samples. Altogether, 20.7% of study participants were positive for several HR HPV types. Infections with HPVs other than HPV16 were common among WLWH with generalized TB receiving combined ART/TB-therapy, and associated with their ability to work, indirectly reflecting both their health and lifestyle. The overall prevalence of HR HPVs was associated with sexual activity of women reflected by the number of pregnancies, and of HPV 16, with young age; none was associated to CD4+-counts, route of HIV-infection, duration of life with HIV, forms of TB-infection, or duration of ART, characterizing the immune status. Thus, WLWH with TB—especially young—were predisposed to infection with HPV16, advancing it as a basis for a therapeutic HPV vaccine. Phylogenetic analysis of HPV16 E5, E6/E7 DNA revealed no common ancestry; sequences were similar to those of the European and American HPV16 strains, indicating that HPV vaccine for WLWH could be the same as HPV16 vaccines developed for the general population. Sociodemographic and health correlates of HR HPV prevalence in WLWH deserve further analysis to develop criteria/recommendations for prophylactic catch-up and therapeutic HPV vaccination of this highly susceptible and vulnerable population group.
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Affiliation(s)
- Maria Isaguliants
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17177 Stockholm, Sweden
- Institute of Microbiology and Virology, Riga Stradins University, LV-1007 Riga, Latvia
- N.F. Gamaleya National Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia; (A.K.); (N.P.); (V.L.); (K.G.)
- Correspondence: or
| | - Marina Nosik
- I.I. Mechnikov Institute of Vaccine and Sera, 105064 Moscow, Russia;
| | - Anastasia Karlsen
- N.F. Gamaleya National Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia; (A.K.); (N.P.); (V.L.); (K.G.)
- I.I. Mechnikov Institute of Vaccine and Sera, 105064 Moscow, Russia;
- Medical Academy for Continuous Professional Education, 125993 Moscow, Russia
| | - Natalia Petrakova
- N.F. Gamaleya National Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia; (A.K.); (N.P.); (V.L.); (K.G.)
| | - Marina Enaeva
- Moscow Clinical Scientific Center Named after A.S. Loginov, 111123 Moscow, Russia;
| | - Natalia Lebedeva
- Moscow Regional Center for Prevention and Control of AIDS and Infectious Diseases, 129110 Moscow, Russia; (N.L.); (D.P.)
| | - Daria Podchufarova
- Moscow Regional Center for Prevention and Control of AIDS and Infectious Diseases, 129110 Moscow, Russia; (N.L.); (D.P.)
| | - Vita Laga
- N.F. Gamaleya National Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia; (A.K.); (N.P.); (V.L.); (K.G.)
| | - Konstantin Gromov
- N.F. Gamaleya National Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia; (A.K.); (N.P.); (V.L.); (K.G.)
| | | | - Sona Chowdhury
- Department of Medicine, University of California San Francisco, San Francisco, CA 94143, USA; (S.C.); (J.M.P.)
| | - Mikhail Sinitsyn
- Moscow Scientific and Clinical Center for TB Control, 107076 Moscow, Russia; (M.S.); (S.A.); (A.G.)
| | - Alexander Sobkin
- G.A. Zaharyan Moscow Tuberculosis Clinic, Department for Treatment of TB Patients with HIV Infection, 125466 Moscow, Russia; (A.S.); (N.C.)
| | - Natalya Chistyakova
- G.A. Zaharyan Moscow Tuberculosis Clinic, Department for Treatment of TB Patients with HIV Infection, 125466 Moscow, Russia; (A.S.); (N.C.)
| | - Svetlana Aleshina
- Moscow Scientific and Clinical Center for TB Control, 107076 Moscow, Russia; (M.S.); (S.A.); (A.G.)
| | - Alexei Grabarnik
- Moscow Scientific and Clinical Center for TB Control, 107076 Moscow, Russia; (M.S.); (S.A.); (A.G.)
| | - Joel M. Palefsky
- Department of Medicine, University of California San Francisco, San Francisco, CA 94143, USA; (S.C.); (J.M.P.)
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10
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Isaguliants M, Bayurova E, Avdoshina D, Kondrashova A, Chiodi F, Palefsky JM. Oncogenic Effects of HIV-1 Proteins, Mechanisms Behind. Cancers (Basel) 2021; 13:305. [PMID: 33467638 PMCID: PMC7830613 DOI: 10.3390/cancers13020305] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/28/2020] [Accepted: 01/04/2021] [Indexed: 02/08/2023] Open
Abstract
People living with human immunodeficiency virus (HIV-1) are at increased risk of developing cancer, such as Kaposi sarcoma (KS), non-Hodgkin lymphoma (NHL), cervical cancer, and other cancers associated with chronic viral infections. Traditionally, this is linked to HIV-1-induced immune suppression with depletion of CD4+ T-helper cells, exhaustion of lymphopoiesis and lymphocyte dysfunction. However, the long-term successful implementation of antiretroviral therapy (ART) with an early start did not preclude the oncological complications, implying that HIV-1 and its antigens are directly involved in carcinogenesis and may exert their effects on the background of restored immune system even when present at extremely low levels. Experimental data indicate that HIV-1 virions and single viral antigens can enter a wide variety of cells, including epithelial. This review is focused on the effects of five viral proteins: envelope protein gp120, accessory protein negative factor Nef, matrix protein p17, transactivator of transcription Tat and reverse transcriptase RT. Gp120, Nef, p17, Tat, and RT cause oxidative stress, can be released from HIV-1-infected cells and are oncogenic. All five are in a position to affect "innocent" bystander cells, specifically, to cause the propagation of (pre)existing malignant and malignant transformation of normal epithelial cells, giving grounds to the direct carcinogenic effects of HIV-1.
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Affiliation(s)
- Maria Isaguliants
- Gamaleya Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia; (E.B.); (D.A.)
- M.P. Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 108819 Moscow, Russia;
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17177 Stockholm, Sweden;
- Department of Research, Riga Stradins University, LV-1007 Riga, Latvia
| | - Ekaterina Bayurova
- Gamaleya Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia; (E.B.); (D.A.)
- M.P. Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 108819 Moscow, Russia;
| | - Darya Avdoshina
- Gamaleya Research Center for Epidemiology and Microbiology, 123098 Moscow, Russia; (E.B.); (D.A.)
- M.P. Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 108819 Moscow, Russia;
| | - Alla Kondrashova
- M.P. Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products of Russian Academy of Sciences, 108819 Moscow, Russia;
| | - Francesca Chiodi
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 17177 Stockholm, Sweden;
| | - Joel M. Palefsky
- Department of Medicine, University of California, San Francisco, CA 94117, USA;
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11
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Petkov S, Bekele Y, Lakshmikanth T, Hejdeman B, Zazzi M, Brodin P, Chiodi F. High CD45 expression of CD8+ and CD4+ T cells correlates with the size of HIV-1 reservoir in blood. Sci Rep 2020; 10:20425. [PMID: 33235273 PMCID: PMC7686502 DOI: 10.1038/s41598-020-77433-z] [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: 05/28/2020] [Accepted: 11/11/2020] [Indexed: 01/21/2023] Open
Abstract
Using mass cytometry, we investigated the expression of 28 markers on CD8+ and CD4+ T cells from HIV-1 infected patients with a variable size of HIV-1 reservoir defined as high (HR) and low (LR) reservoir; we aimed at identifying phenotypic associations of T cells with size of HIV-1 reservoir. We showed that the frequency of CD45+ CD8+ and CD4+ T cells was directly proportional to the size of HIV-1 reservoir; HR patients had a significantly larger frequency of blood CD45high T cells and higher CD45 expression on both CD8+ and CD4+ T cells. CD45 is a receptor-type protein tyrosine phosphatase essential in TCR signaling. Functional and phenotypical analysis of CD45high cells revealed that they express activation and proliferation markers (CD38 + HLA-DR + and Ki-67) and produce cytokines upon in vitro activation. CD45high T cells also expressed high levels of immune check-point PD-1. Our results link CD45 expression on T cells to HIV-1 reservoir; PD-1 expression on CD45high T cells may contribute to their exhaustion.
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Affiliation(s)
- Stefan Petkov
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Solna vägen 9, 17165, Solna, Stockholm, Sweden
| | - Yonas Bekele
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Solna vägen 9, 17165, Solna, Stockholm, Sweden
| | - Tadepally Lakshmikanth
- Division of Clinical Pediatrics, Department of Women's and Children's Health, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden
| | - Bo Hejdeman
- Department of Clinical Science and Education, Södersjukhuset, Unit of Infectious Diseases, Venhälsan, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Maurizio Zazzi
- Department of Microbiology and Virology, Policlinico S. Maria Alle Scotte, Siena, Italy
| | - Petter Brodin
- Division of Clinical Pediatrics, Department of Women's and Children's Health, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden.,Unit of Pediatric Rheumatology, Karolinska University Hospital, Stockholm, Sweden
| | - Francesca Chiodi
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, Karolinska Institutet, Solna vägen 9, 17165, Solna, Stockholm, Sweden.
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12
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Dopaminergic impact of cART and anti-depressants on HIV neuropathogenesis in older adults. Brain Res 2019; 1723:146398. [PMID: 31442412 DOI: 10.1016/j.brainres.2019.146398] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 08/09/2019] [Accepted: 08/19/2019] [Indexed: 01/21/2023]
Abstract
The success of combination antiretroviral therapy (cART) has transformed HIV infection into a chronic condition, resulting in an increase in the number of older, cART-treated adults living with HIV. This has increased the incidence of age-related, non-AIDS comorbidities in this population. One of the most common comorbidities is depression, which is also associated with cognitive impairment and a number of neuropathologies. In older people living with HIV, treating these overlapping disorders is complex, often creating pill burden or adverse drug-drug interactions that can exacerbate these neurologic disorders. Depression, NeuroHIV and many of the neuropsychiatric therapeutics used to treat them impact the dopaminergic system, suggesting that dopaminergic dysfunction may be a common factor in the development of these disorders. Further, changes in dopamine can influence the development of inflammation and the regulation of immune function, which are also implicated in the progression of NeuroHIV and depression. Little is known about the optimal clinical management of drug-drug interactions between cART drugs and antidepressants, particularly in regard to dopamine in older people living with HIV. This review will discuss those interactions, first examining the etiology of NeuroHIV and depression in older adults, then discussing the interrelated effects of dopamine and inflammation on these disorders, and finally reviewing the activity and interactions of cART drugs and antidepressants on each of these factors. Developing better strategies to manage these comorbidities is critical to the health of the aging, HIV-infected population, as the older population may be particularly vulnerable to drug-drug interactions affecting dopamine.
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13
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Immune Activation, Inflammation, and Non-AIDS Co-Morbidities in HIV-Infected Patients under Long-Term ART. Viruses 2019; 11:v11030200. [PMID: 30818749 PMCID: PMC6466530 DOI: 10.3390/v11030200] [Citation(s) in RCA: 240] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 02/19/2019] [Accepted: 02/26/2019] [Indexed: 02/07/2023] Open
Abstract
Despite effective antiretroviral therapy (ART), people living with HIV (PLWH) still present persistent chronic immune activation and inflammation. This condition is the result of several factors including thymic dysfunction, persistent antigen stimulation due to low residual viremia, microbial translocation and dysbiosis, caused by the disruption of the gut mucosa, co-infections, and cumulative ART toxicity. All of these factors can create a vicious cycle that does not allow the full control of immune activation and inflammation, leading to an increased risk of developing non-AIDS co-morbidities such as metabolic syndrome and cardiovascular diseases. This review aims to provide an overview of the most recent data about HIV-associated inflammation and chronic immune exhaustion in PLWH under effective ART. Furthermore, we discuss new therapy approaches that are currently being tested to reduce the risk of developing inflammation, ART toxicity, and non-AIDS co-morbidities.
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14
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Warren JA, Clutton G, Goonetilleke N. Harnessing CD8 + T Cells Under HIV Antiretroviral Therapy. Front Immunol 2019; 10:291. [PMID: 30863403 PMCID: PMC6400228 DOI: 10.3389/fimmu.2019.00291] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 02/04/2019] [Indexed: 12/16/2022] Open
Abstract
Antiretroviral therapy (ART) has transformed HIV from a fatal disease to a chronic condition. In recent years there has been considerable interest in strategies to enable HIV-infected individuals to cease ART without viral rebound, either by purging all cells infected harboring replication-competent virus (HIV eradication), or by boosting immune responses to allow durable suppression of virus without rebound (HIV remission). Both of these approaches may need to harness HIV-specific CD8+ T cells to eliminate infected cells and/or prevent viral spread. In untreated infection, both HIV-specific and total CD8+ T cells are dysfunctional. Here, we review our current understanding of both global and HIV-specific CD8+ T cell immunity in HIV-infected individuals with durably suppressed viral load under ART, and its implications for HIV cure, eradication or remission. Overall, the literature indicates significant normalization of global T cell parameters, including CD4/8 ratio, activation status, and telomere length. Global characteristics of CD8+ T cells from HIV+ART+ individuals align more closely with those of HIV-seronegative individuals than of viremic HIV-infected individuals. However, markers of senescence remain elevated, leading to the hypothesis that immune aging is accelerated in HIV-infected individuals on ART. This phenomenon could have implications for attempts to prime de novo, or boost existing HIV-specific CD8+ T cell responses. A major challenge for both HIV cure and remission strategies is to elicit HIV-specific CD8+ T cell responses superior to that elicited by natural infection in terms of response kinetics, magnitude, breadth, viral suppressive capacity, and tissue localization. Addressing these issues will be critical to the success of HIV cure and remission attempts.
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Affiliation(s)
- Joanna A Warren
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, United States
| | - Genevieve Clutton
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, United States
| | - Nilu Goonetilleke
- Department of Microbiology and Immunology, University of North Carolina, Chapel Hill, NC, United States.,UNC HIV Cure Center, University of North Carolina, Chapel Hill, NC, United States
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15
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Bekele Y, Lakshmikanth T, Chen Y, Mikes J, Nasi A, Petkov S, Hejdeman B, Brodin P, Chiodi F. Mass cytometry identifies distinct CD4+ T cell clusters distinguishing HIV-1-infected patients according to antiretroviral therapy initiation. JCI Insight 2019; 4:125442. [PMID: 30728327 DOI: 10.1172/jci.insight.125442] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/20/2018] [Indexed: 01/13/2023] Open
Abstract
Recent guidelines recommend antiretroviral therapy (ART) to be administered as early as possible during HIV-1 infection. Few studies addressed the immunological benefit of commencing ART during the acute phase of infection. We used mass cytometry to characterize blood CD4+ T cells from HIV-1-infected patients who initiated ART during acute or chronic phase of infection. Using this method, we analyzed a large number of markers on millions of individual immune cells. The results revealed that CD4+ T cell clusters with high expression of CD27, CD28, CD127, and CD44, whose function involves T cell migration to inflamed tissues and survival, are more abundant in healthy controls and patients initiating ART during the acute phase; on the contrary, CD4+ T cell clusters in patients initiating ART during the chronic phase had reduced expression of these markers. The results are suggestive of a better preserved immune function in HIV-1-infected patients initiating ART during acute infection.
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Affiliation(s)
- Yonas Bekele
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, and
| | - Tadepally Lakshmikanth
- Science for Life Laboratory, Division of Clinical Pediatrics, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Yang Chen
- Science for Life Laboratory, Division of Clinical Pediatrics, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Jaromir Mikes
- Science for Life Laboratory, Division of Clinical Pediatrics, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Aikaterini Nasi
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, and
| | - Stefan Petkov
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, and
| | - Bo Hejdeman
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, and Unit of Infectious Diseases, Venhälsan, Södersjukhuset, Stockholm, Sweden
| | - Petter Brodin
- Science for Life Laboratory, Division of Clinical Pediatrics, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden.,Department of Newborn Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Francesca Chiodi
- Department of Microbiology, Tumor and Cell Biology, Biomedicum, and
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16
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Abstract
Abnormal immune activation and expansion of CD8+ T cells, especially of memory and effector phenotypes, take place during HIV-1 infection, and these abnormal features persist during administration of antiretroviral therapy (ART) to infected patients. The molecular mechanisms for CD8+ T-cell expansion remain poorly characterized. In this article, we review the literature addressing features of CD8+ T-cell immune pathology and present an integrated view on the mechanisms leading to abnormal CD8+ T-cell expansion during HIV-1 infection. The expression of molecules important for directing the homing of CD8+ T cells between the circulation and lymphoid tissues, in particular CCR5 and CXCR3, is increased in CD8+ T cells in circulation and in inflamed tissues during HIV-1 infection; these disturbances in the homing capacity of CD8+ T cells have been linked to increased CD8+ T-cell proliferation. The production of IL-15, a cytokine responsible for physiological proliferation of CD8+ T cells, is increased in lymphoid tissues during HIV-1 infection as result of microbial translocation and severe inflammation. IL-15, and additional inflammatory cytokines, may lead to deregulated proliferation of CD8+ T cells and explain the accumulation of CD8+ T cells in circulation. The decreased capacity of CD8+ T cells to localize to gut-associated lymphoid tissue also contributes to the accumulation of these cells in blood. Control of inflammation, through ART administration during primary HIV-1 infection or therapies aimed at controlling inflammation during HIV-1 infection, is pivotal to prevent abnormal expansion of CD8+ T cells during HIV-1 infection.
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Affiliation(s)
- A Nasi
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - F Chiodi
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
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17
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Bekele Y, Graham RL, Soeria-Atmadja S, Nasi A, Zazzi M, Vicenti I, Naver L, Nilsson A, Chiodi F. Hepatitis B Virus Vaccination in HIV-1-Infected Young Adults: A Tool to Reduce the Size of HIV-1 Reservoirs? Front Immunol 2018; 8:1966. [PMID: 29375579 PMCID: PMC5767726 DOI: 10.3389/fimmu.2017.01966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 12/19/2017] [Indexed: 01/12/2023] Open
Abstract
During anti-retroviral therapy (ART) HIV-1 persists in cellular reservoirs, mostly represented by CD4+ memory T cells. Several approaches are currently being undertaken to develop a cure for HIV-1 infection through elimination (or reduction) of these reservoirs. Few studies have so far been conducted to assess the possibility of reducing the size of HIV-1 reservoirs through vaccination in virologically controlled HIV-1-infected children. We recently conducted a vaccination study with a combined hepatitis A virus (HAV) and hepatitis B virus (HBV) vaccine in 22 HIV-1-infected children. We assessed the size of the virus reservoir, measured as total HIV-1 DNA copies in blood cells, pre- and postvaccination. In addition, we investigated by immunostaining whether the frequencies of CD4+ and CD8+ T cells and parameters of immune activation and proliferation on these cells were modulated by vaccination. At 1 month from the last vaccination dose, we found that 20 out of 22 children mounted a serological response to HBV; a majority of children had antibodies against HAV at baseline. The number of HIV-1 DNA copies in blood at 1 month postvaccination was reduced in comparison to baseline although this reduction was not statistically significant. A significant reduction of HIV-1 DNA copies in blood following vaccination was found in 12 children. The frequencies of CD4+ (naïve, effector memory) and CD8+ (central memory) T-cell subpopulations changed following vaccinations and a reduction in the activation and proliferation pattern of these cells was also noticed. Multivariate linear regression analysis revealed that the frequency of CD8+ effector memory T cells prior to vaccination was strongly predictive of the reduction of HIV-1 DNA copies in blood following vaccination of the 22 HIV-1-infected children. The results of this study suggest a beneficial effect of vaccination to reduce the size of virus reservoir in HIV-1-infected children receiving ART. A reduced frequency of activated CD4+ cells and an increase in central memory CD8+ T cells were associated with this finding. Further studies should assess whether vaccination is a possible tool to reduce HIV-1 reservoirs.
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Affiliation(s)
- Yonas Bekele
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Rebecka Lantto Graham
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Sandra Soeria-Atmadja
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden.,Department of Pediatrics, Karolinska University Hospital, Stockholm, Sweden
| | - Aikaterini Nasi
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Maurizio Zazzi
- Department of Medical Biotechnology, University of Siena, Siena, Italy
| | - Ilaria Vicenti
- Department of Medical Biotechnology, University of Siena, Siena, Italy
| | - Lars Naver
- Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden.,Department of Pediatrics, Karolinska University Hospital, Stockholm, Sweden
| | - Anna Nilsson
- Department of Women's and Children Health, Karolinska Institutet, Stockholm, Sweden
| | - Francesca Chiodi
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
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18
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Vicenti I, Meini G, Saladini F, Giannini A, Boccuto A, Schiaroli E, Zazzi M. Development of an internally controlled quantitative PCR to measure total cell-associated HIV-1 DNA in blood. ACTA ACUST UNITED AC 2017; 56:e75-e77. [DOI: 10.1515/cclm-2017-0587] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 08/09/2017] [Indexed: 11/15/2022]
Affiliation(s)
- Ilaria Vicenti
- Department of Medical Biotechnologies , University of Siena , Siena , Italy , Phone: +39 0577 233910, Fax: +39 0577 233870
| | - Genny Meini
- Department of Medical Biotechnologies , University of Siena , Siena , Italy
| | - Francesco Saladini
- Department of Medical Biotechnologies , University of Siena , Siena , Italy
| | - Alessia Giannini
- Department of Medical Biotechnologies , University of Siena , Siena , Italy
| | - Adele Boccuto
- Department of Medical Biotechnologies , University of Siena , Siena , Italy
| | - Elisabetta Schiaroli
- Unit of Infectious Diseases , Department of Medicine , University of Perugia , Perugia , Italy
| | - Maurizio Zazzi
- Department of Medical Biotechnologies , University of Siena , Siena , Italy
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19
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Sun Y, Fu Y, Zhang Z, Tang T, Liu J, Ding H, Han X, Xu J, Chu Z, Shang H, Jiang Y. The investigation of CD4+T-cell functions in primary HIV infection with antiretroviral therapy. Medicine (Baltimore) 2017; 96:e7430. [PMID: 28700479 PMCID: PMC5515751 DOI: 10.1097/md.0000000000007430] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Human immunodeficiency virus (HIV) infection leads to reduced CD4T-cell counts and immune dysfunction. Initiation of antiretroviral therapy (ART) in HIV primary infection has been recommended to achieve an optimal clinical outcome, but a comprehensive study on restoration of CD4T-cell function in primary HIV-infected individuals with ART still needs to be eluciated. We investigated longitudinal changes in the CD4T-cell counts, phenotypes, and functions in HIV-infected individuals with early ART (initiated within 6 months after HIV infection) or later ART (initiated more than 12 months after HIV infection). Patients from early ART and later ART groups had received ART for at least 1 year. Individuals with early ART had more CD4T cells, a faster rate of CD4T-cell recovery than those receiving later ART; the levels of CD4T-cell activation and senescence were lower in early ART compared to those with later ART (P = .031; P = .016), but the activation was higher than normal controls (NC) (P = .001); thymic emigrant function was more upregulated in early ART than in later ART (P = .015), but still lower than NC (P = .027); proliferative capacity and interferon-γ secretion of CD4T cells were significantly decreased in primary infection (P < .001; P = .029), and early ART restored these CD4T-cell functions, there is no difference with NC, later ART could partially restore the functions of CD4T cells, but it remained lower than that of NC (P = .005; P = .019). Early ART could better improve CD4T-cell function.
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20
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Erratum: Medicine, Volume 95, Issue 23: Erratum. Medicine (Baltimore) 2016; 95:e0916. [PMID: 31265603 PMCID: PMC4956773 DOI: 10.1097/01.md.0000489580.04709.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
[This corrects the article DOI: 10.1097/MD.0000000000003588.][This corrects the article DOI: 10.1097/MD.0000000000003661.][This corrects the article DOI: 10.1097/MD.0000000000003679.][This corrects the article DOI: 10.1097/MD.0000000000003711.][This corrects the article DOI: 10.1097/MD.0000000000003768.][This corrects the article DOI: 10.1097/MD.0000000000003778.][This corrects the article DOI: 10.1097/MD.0000000000003803.][This corrects the article DOI: 10.1097/MD.0000000000003821.][This corrects the article DOI: 10.1097/MD.0000000000003828.][This corrects the article DOI: 10.1097/MD.0000000000003832.][This corrects the article DOI: 10.1097/MD.0000000000003833.][This corrects the article DOI: 10.1097/MD.0000000000003834.][This corrects the article DOI: 10.1097/MD.0000000000003835.][This corrects the article DOI: 10.1097/MD.0000000000003836.][This corrects the article DOI: 10.1097/MD.0000000000003838.][This corrects the article DOI: 10.1097/MD.0000000000003841.][This corrects the article DOI: 10.1097/MD.0000000000003844.][This corrects the article DOI: 10.1097/MD.0000000000003849.][This corrects the article DOI: 10.1097/MD.0000000000003855.][This corrects the article DOI: 10.1097/MD.0000000000003856.][This corrects the article DOI: 10.1097/MD.0000000000003858.][This corrects the article DOI: 10.1097/MD.0000000000003868.][This corrects the article DOI: 10.1097/MD.0000000000003870.][This corrects the article DOI: 10.1097/MD.0000000000003877.][This corrects the article DOI: 10.1097/MD.0000000000003883.][This corrects the article DOI: 10.1097/MD.0000000000003886.][This corrects the article DOI: 10.1097/MD.0000000000003887.][This corrects the article DOI: 10.1097/MD.0000000000003738.][This corrects the article DOI: 10.1097/MD.0000000000003777.][This corrects the article DOI: 10.1097/MD.0000000000003853.][This corrects the article DOI: 10.1097/MD.0000000000003859.][This corrects the article DOI: 10.1097/MD.0000000000003784.][This corrects the article DOI: 10.1097/MD.0000000000003874.].
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