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Colby DJ, Sarnecki M, Barouch DH, Tipsuk S, Stieh DJ, Kroon E, Schuetz A, Intasan J, Sacdalan C, Pinyakorn S, Grandin P, Song H, Tovanabutra S, Shubin Z, Kim D, Paquin-Proulx D, Eller MA, Thomas R, de Souza M, Wieczorek L, Polonis VR, Pagliuzza A, Chomont N, Peter L, Nkolola JP, Vingerhoets J, Truyers C, Pau MG, Schuitemaker H, Phanuphak N, Michael N, Robb ML, Tomaka FL, Ananworanich J. Safety and immunogenicity of Ad26 and MVA vaccines in acutely treated HIV and effect on viral rebound after antiretroviral therapy interruption. Nat Med 2020; 26:498-501. [DOI: 10.1038/s41591-020-0774-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 01/24/2020] [Indexed: 01/29/2023]
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52
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Yan LM, Lau SPN, Poh CM, Chan VSF, Chan MCW, Peiris M, Poon LLM. Heterosubtypic Protection Induced by a Live Attenuated Influenza Virus Vaccine Expressing Galactose-α-1,3-Galactose Epitopes in Infected Cells. mBio 2020; 11:e00027-20. [PMID: 32127444 PMCID: PMC7064743 DOI: 10.1128/mbio.00027-20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 01/14/2020] [Indexed: 12/22/2022] Open
Abstract
Anti-galactose-α-1,3-galactose (anti-α-Gal) antibody is naturally expressed at a high level in humans. It constitutes about 1% of immunoglobulins found in human blood. Here, we designed a live attenuated influenza virus vaccine that can generate α-Gal epitopes in infected cells in order to facilitate opsonization of infected cells, thereby enhancing vaccine-induced immune responses. In the presence of normal human sera, cells infected with this mutant can enhance phagocytosis of human macrophages and cytotoxicity of NK cells in vitro Using a knockout mouse strain that allows expression of anti-α-Gal antibody in vivo, we showed that this strategy can increase vaccine immunogenicity and the breadth of protection. This vaccine can induce 100% protection against a lethal heterosubtypic group 1 (H5) or group 2 (mouse-adapted H3) influenza virus challenge in the mouse model. In contrast, its heterosubtypic protective effect in wild-type or knockout mice that do not have anti-α-Gal antibody expression is only partial, demonstrating that the enhanced vaccine-induced protection requires anti-α-Gal antibody upon vaccination. Anti-α-Gal-expressing knockout mice immunized with this vaccine produce robust humoral and cell-mediated responses upon a lethal virus challenge. This vaccine can stimulate CD11blo/- pulmonary dendritic cells, which are known to be crucial for clearance of influenza virus. Our approach provides a novel strategy for developing next-generation influenza virus vaccines.IMPORTANCE Influenza A viruses have multiple HA subtypes that are antigenically diverse. Classical influenza virus vaccines are subtype specific, and they cannot induce satisfactory heterosubtypic immunity against multiple influenza virus subtypes. Here, we developed a live attenuated H1N1 influenza virus vaccine that allows the expression of α-Gal epitopes by infected cells. Anti-α-Gal antibody is naturally produced by humans. In the presence of this antibody, human cells infected with this experimental vaccine virus can enhance several antibody-mediated immune responses in vitro Importantly, mice expressing anti-α-Gal antibody in vivo can be fully protected by this H1N1 vaccine against a lethal H5 or H3 virus challenge. Our work demonstrates a new strategy for using a single influenza virus strain to induce broadly cross-reactive immune responses against different influenza virus subtypes.
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Affiliation(s)
- Li-Meng Yan
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Sylvia P N Lau
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Chek Meng Poh
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Vera S F Chan
- Department of Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Michael C W Chan
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Malik Peiris
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Leo L M Poon
- School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
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Laher F, Moodie Z, Cohen KW, Grunenberg N, Bekker LG, Allen M, Frahm N, Yates NL, Morris L, Malahleha M, Mngadi K, Daniels B, Innes C, Saunders K, Grant S, Yu C, Gilbert PB, Phogat S, DiazGranados CA, Koutsoukos M, Van Der Meeren O, Bentley C, Mkhize NN, Pensiero MN, Mehra VL, Kublin JG, Corey L, Montefiori DC, Gray GE, McElrath MJ, Tomaras GD. Safety and immune responses after a 12-month booster in healthy HIV-uninfected adults in HVTN 100 in South Africa: A randomized double-blind placebo-controlled trial of ALVAC-HIV (vCP2438) and bivalent subtype C gp120/MF59 vaccines. PLoS Med 2020; 17:e1003038. [PMID: 32092060 PMCID: PMC7039414 DOI: 10.1371/journal.pmed.1003038] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 01/31/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND HVTN 100 evaluated the safety and immunogenicity of an HIV subtype C pox-protein vaccine regimen, investigating a 12-month booster to extend vaccine-induced immune responses. METHODS AND FINDINGS A phase 1-2 randomized double-blind placebo-controlled trial enrolled 252 participants (210 vaccine/42 placebo; median age 23 years; 43% female) between 9 February 2015 and 26 May 2015. Vaccine recipients received ALVAC-HIV (vCP2438) alone at months 0 and 1 and with bivalent subtype C gp120/MF59 at months 3, 6, and 12. Antibody (IgG, IgG3 binding, and neutralizing) and CD4+ T-cell (expressing interferon-gamma, interleukin-2, and CD40 ligand) responses were evaluated at month 6.5 for all participants and at months 12, 12.5, and 18 for a randomly selected subset. The primary analysis compared IgG binding antibody (bAb) responses and CD4+ T-cell responses to 3 vaccine-matched antigens at peak (month 6.5 versus 12.5) and durability (month 12 versus 18) timepoints; IgG responses to CaseA2_gp70_V1V2.B, a primary correlate of risk in RV144, were also compared at these same timepoints. Secondary and exploratory analyses compared IgG3 bAb responses, IgG bAb breadth scores, neutralizing antibody (nAb) responses, antibody-dependent cellular phagocytosis, CD4+ polyfunctionality responses, and CD4+ memory sub-population responses at the same timepoints. Vaccines were generally safe and well tolerated. During the study, there were 2 deaths (both in the vaccine group and both unrelated to study products). Ten participants became HIV-infected during the trial, 7% (3/42) of placebo recipients and 3% (7/210) of vaccine recipients. All 8 serious adverse events were unrelated to study products. Less waning of immune responses was seen after the fifth vaccination than after the fourth, with higher antibody and cellular response rates at month 18 than at month 12: IgG bAb response rates to 1086.C V1V2, 21.0% versus 9.7% (difference = 11.3%, 95% CI = 0.6%-22.0%, P = 0.039), and ZM96.C V1V2, 21.0% versus 6.5% (difference = 14.5%, 95% CI = 4.1%-24.9%, P = 0.004). IgG bAb response rates to all 4 primary V1V2 antigens were higher 2 weeks after the fifth vaccination than 2 weeks after the fourth vaccination: 87.7% versus 75.4% (difference = 12.3%, 95% CI = 1.7%-22.9%, P = 0.022) for 1086.C V1V2, 86.0% versus 63.2% (difference = 22.8%, 95% CI = 9.1%-36.5%, P = 0.001) for TV1c8.2.C V1V2, 67.7% versus 44.6% (difference = 23.1%, 95% CI = 10.4%-35.7%, P < 0.001) for ZM96.C V1V2, and 81.5% versus 60.0% (difference = 21.5%, 95% CI = 7.6%-35.5%, P = 0.002) for CaseA2_gp70_V1V2.B. IgG bAb response rates to the 3 primary vaccine-matched gp120 antigens were all above 90% at both peak timepoints, with no significant differences seen, except a higher response rate to ZM96.C gp120 at month 18 versus month 12: 64.5% versus 1.6% (difference = 62.9%, 95% CI = 49.3%-76.5%, P < 0.001). CD4+ T-cell response rates were higher at month 18 than month 12 for all 3 primary vaccine-matched antigens: 47.3% versus 29.1% (difference = 18.2%, 95% CI = 2.9%-33.4%, P = 0.021) for 1086.C, 61.8% versus 38.2% (difference = 23.6%, 95% CI = 9.5%-37.8%, P = 0.001) for TV1.C, and 63.6% versus 41.8% (difference = 21.8%, 95% CI = 5.1%-38.5%, P = 0.007) for ZM96.C, with no significant differences seen at the peak timepoints. Limitations were that higher doses of gp120 were not evaluated, this study was not designed to investigate HIV prevention efficacy, and the clinical significance of the observed immunological effects is uncertain. CONCLUSIONS In this study, a 12-month booster of subtype C pox-protein vaccines restored immune responses, and slowed response decay compared to the 6-month vaccination. TRIAL REGISTRATION ClinicalTrials.gov NCT02404311. South African National Clinical Trials Registry (SANCTR number: DOH--27-0215-4796).
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Affiliation(s)
- Fatima Laher
- Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- * E-mail:
| | - Zoe Moodie
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Kristen W. Cohen
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Nicole Grunenberg
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Linda-Gail Bekker
- Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa
| | - Mary Allen
- Vaccine Research Program, Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Nicole Frahm
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Nicole L. Yates
- Departments of Surgery and Immunology, Duke Human Vaccine Institute, Durham, North Carolina, United States of America
| | - Lynn Morris
- National Institute for Communicable Diseases, National Health Laboratory Service, Johannesburg, South Africa
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | | | - Kathryn Mngadi
- Centre for the AIDS Programme of Research in South Africa, Durban, South Africa
| | - Brodie Daniels
- South African Medical Research Council, Durban, South Africa
| | - Craig Innes
- Aurum Institute, Klerksdorp Research Centre, Klerksdorp, South Africa
| | - Kevin Saunders
- Departments of Surgery and Immunology, Duke Human Vaccine Institute, Durham, North Carolina, United States of America
| | - Shannon Grant
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Chenchen Yu
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Peter B. Gilbert
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Sanjay Phogat
- Sanofi Pasteur, Swiftwater, Pennsylvania, United States of America
| | | | | | | | - Carter Bentley
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Nonhlanhla N. Mkhize
- National Institute for Communicable Diseases, National Health Laboratory Service, Johannesburg, South Africa
- Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Michael N. Pensiero
- Vaccine Research Program, Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - Vijay L. Mehra
- Vaccine Research Program, Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, United States of America
| | - James G. Kublin
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Lawrence Corey
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - David C. Montefiori
- Departments of Surgery and Immunology, Duke Human Vaccine Institute, Durham, North Carolina, United States of America
| | - Glenda E. Gray
- Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
- South African Medical Research Council, Durban, South Africa
| | - M. Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Georgia D. Tomaras
- Departments of Surgery and Immunology, Duke Human Vaccine Institute, Durham, North Carolina, United States of America
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Ballegaard V, Pedersen KK, Brændstrup P, Kirkby N, Stryhn A, Ryder LP, Gerstoft J, Nielsen SD. Cytomegalovirus-specific CD8+ T-cell responses are associated with arterial blood pressure in people living with HIV. PLoS One 2020; 15:e0226182. [PMID: 31929537 PMCID: PMC6957152 DOI: 10.1371/journal.pone.0226182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2019] [Accepted: 11/21/2019] [Indexed: 11/17/2022] Open
Abstract
People living with HIV (PLHIV) are at increased risk for cardiovascular disease (CVD), and immunity against cytomegalovirus (CMV) may be a contributing factor. We hypothesized that enhanced T-cell responses against CMV and CMV-IgG antibody-levels are associated with higher arterial blood pressure in PLHIV. We assessed serum CMV-IgG, systolic- (SBP) and diastolic- (DBP) blood pressure, pulse pressure (PP), traditional risk factors, activated CD8+ T-cells (CD38+HLA-DR+), senescent CD8+ T-cells (CD28-CD57+) and interleukin-6 (IL-6) in 60 PLHIV and 31 HIV-uninfected controls matched on age, gender, education and comorbidity. In PLHIV, expression of interleukin-2, tumor necrosis factor-α and interferon-γ was measured by intracellular-cytokine-staining after stimulation of T-cells with CMV-pp65 and CMV-gB. Associations between CMV-specific immune responses and hypertension, SBP, DBP or PP were assessed by multivariate logistic and linear regression models adjusted for appropriate confounders. The median age of PLHIV was 47 years and 90% were male. Prevalence of hypertension in PLHIV was 37% compared to 55% of HIV-uninfected controls. CMV-specific CD8+ T-cell responses were independently associated with higher PP (CMV-pp65; β = 2.29, p = 0.001, CMV-gB; β = 2.42, p = 0.001) in PLHIV. No significant differences were found with regard to individual measures of SBP and DBP. A possible weak association was found between CMV-IgG and hypertension (β = 1.33, p = 0.049) after adjustment for age, smoking and LDL-cholesterol. HIV-related factors, IL-6, CD8+ T-cell activation or CD8+ T-cell senescence did not mediate the associations, and no associations were found between CMV-specific CD4+ T-cell responses and blood pressure in PLHIV. In conclusion, increased arterial blood pressure in PLHIV may be affected by heightened CMV-specific CD8+ T-cell responses.
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Affiliation(s)
- Vibe Ballegaard
- Department of Infectious Diseases, Viro-immunology Research Unit, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark.,Department of Clinical Immunology, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Karin Kaereby Pedersen
- Department of Infectious Diseases, Viro-immunology Research Unit, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Peter Brændstrup
- Department of Clinical Immunology, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark.,Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark.,Department of Hematology, Herlev University Hospital, Herlev, Denmark
| | - Nikolai Kirkby
- Department of Medical Microbiology, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Anette Stryhn
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Lars P Ryder
- Department of Clinical Immunology, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Jan Gerstoft
- Department of Infectious Diseases, Viro-immunology Research Unit, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Susanne Dam Nielsen
- Department of Infectious Diseases, Viro-immunology Research Unit, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
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Rakshit S, Ahmed A, Adiga V, Sundararaj BK, Sahoo PN, Kenneth J, D’Souza G, Bonam W, Johnson C, Franken KL, Ottenhoff TH, Finak G, Gottardo R, Stuart KD, De Rosa SC, McElrath MJ, Vyakarnam A. BCG revaccination boosts adaptive polyfunctional Th1/Th17 and innate effectors in IGRA+ and IGRA- Indian adults. JCI Insight 2019; 4:130540. [PMID: 31743110 PMCID: PMC6975271 DOI: 10.1172/jci.insight.130540] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 11/13/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUNDBacille Calmette-Guérin (BCG) vaccine is protective against Tuberculosis (TB) in children, but its efficacy wanes with age. Consequently, determining if BCG revaccination augments anti-TB immunity in young adults in TB endemic regions is vital.METHODSTwo hundred healthy adults, BCG vaccinated at birth, were tested for their IFN-γ release assay (IGRA) status. Of these, 28 IGRA+ and 30 IGRA- were BCG revaccinated, and 24 IGRA+ and 23 IGRA- subjects served as unvaccinated controls. T and innate cell responses to mycobacterial antigens were analyzed by 14-color flow cytometry over 34 weeks.RESULTSIFN-γ and/or IL-2 Ag85A- and BCG-specific CD4+ and CD8+ T cell responses were boosted by revacciantion at 4 and 34 weeks, respectively, and were > 2-fold higher in IGRA+ compared with IGRA- vaccinees. Polyfunctional Ag85A, BCG, and mycobacterium tuberculosis (Mtb) latency Ag-specific (LTAg-specific) CD4+ T cells expressing up to 8 cytokines were also significantly enhanced in both IGRA+ and IGRA- vaccinees relative to unvaccinated controls, most markedly in IGRA+ vaccinees. A focused analysis of Th17 responses revealed expansion of Ag85A-, BCG-, and LTAg-specific total IL-17A+,IL-17F+,IL-22+, and IL-10+ CD4+ T cell effectors in both IGRA+ and IGRA- subjects. Also, innate IFN-γ+ NK/γδ/NKT cell responses were higher in both IGRA+ and IGRA- vaccinees compared with controls. This is the first evidence to our knowledge that BCG revaccination significantly boosts antimycobacterial Th1/Th17 responses in IGRA+ and IGRA- subjects.CONCLUSIONThese data show that BCG revaccination is immunogenic in IGRA- and IGRA+ subjects, implying that Mtb preinfection in IGRA+ subjects does not impact immunogenicity. This has implications for public health and vaccine development strategies.FUNDINGThis work was funded principally by DBT-NIH (BT/MB/Indo-US/HIPC/2013).
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Affiliation(s)
- Srabanti Rakshit
- Laboratory of Immunology of HIV-TB Co-infection, Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, India
| | - Asma Ahmed
- Laboratory of Immunology of HIV-TB Co-infection, Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, India
| | - Vasista Adiga
- Laboratory of Immunology of HIV-TB Co-infection, Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, India
| | - Bharath K. Sundararaj
- Laboratory of Immunology of HIV-TB Co-infection, Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, India
| | - Pravat Nalini Sahoo
- Laboratory of Immunology of HIV-TB Co-infection, Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, India
| | - John Kenneth
- Department of Infectious Diseases and
- Department of Pulmonary Medicine, St. John’s Research Institute, Bangalore, India
| | - George D’Souza
- Department of Infectious Diseases and
- Department of Pulmonary Medicine, St. John’s Research Institute, Bangalore, India
| | | | | | - Kees L.M.C. Franken
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Tom H.M. Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Greg Finak
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | - Raphael Gottardo
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
| | | | - Stephen C. De Rosa
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
- Department of Laboratory Medicine and
| | - M. Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, USA
- Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA
| | - Annapurna Vyakarnam
- Laboratory of Immunology of HIV-TB Co-infection, Centre for Infectious Disease Research, Indian Institute of Science, Bangalore, India
- Peter Gorer Department of Immunobiology, School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine, Guy’s Hospital, King’s College London, London, United Kingdom
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Analyzing cellular immunogenicity in vaccine clinical trials: a new statistical method including non-specific responses for accurate estimation of vaccine effect. J Immunol Methods 2019; 477:112711. [PMID: 31809708 DOI: 10.1016/j.jim.2019.112711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 11/15/2019] [Accepted: 11/25/2019] [Indexed: 11/24/2022]
Abstract
Evaluation of immunogenicity is a key step in the clinical development of novel vaccines. T-cell responses to vaccine candidates are typically assessed by intracellular cytokine staining (ICS) using multiparametric flow cytometry. A conventional statistical approach to analyze ICS data is to compare, between vaccine regimens or between baseline and post-vaccination of the same regimen depending on the trial design, the percentages of cells producing a cytokine of interest after ex vivo stimulation of peripheral blood mononuclear cells (PBMC) with vaccine antigens, after subtracting the non-specific response (of unstimulated cells) of each sample. Subtraction of the non-specific response is aimed at capturing the specific response to the antigen, but raises methodological issues related to measurement error and statistical power. We describe here a new statistical approach to analyze ICS data from vaccine trials. We propose a bivariate linear regression model for estimating the non-specific and antigen-specific ICS responses. We benchmarked the performance of the model in terms of both bias and control of type-I and -II errors in comparison with conventional approaches, and applied it to simulated data as well as real pre- and post-vaccination data from two recent HIV vaccine trials (ANRS VRI01 in healthy volunteers and therapeutic VRI02 ANRS 149 LIGHT in HIV-infected participants). The model was as good as the conventional approaches (with or without subtraction of the non-specific response) in all simulation scenarios in terms of statistical performance, whereas the conventional approaches did not provide robust results across all scenarios. The proposed model estimated the T-cell responses to the antigens without any effect of the non-specific response on the specific response, irrespective of the correlation between the non-specific and specific responses. This novel method of analyzing T-cell immunogenicity data based on bivariate modeling is more flexible than conventional methods, and so yields more detailed results and enables accurate interpretation of vaccine-induced response.
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Gouttefangeas C, Schuhmacher J, Dimitrov S. Adhering to adhesion: assessing integrin conformation to monitor T cells. Cancer Immunol Immunother 2019; 68:1855-1863. [PMID: 31309255 PMCID: PMC11028104 DOI: 10.1007/s00262-019-02365-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 07/02/2019] [Indexed: 11/27/2022]
Abstract
Monitoring T cells is of major importance for the development of immunotherapies. Recent sophisticated assays can address particular aspects of the anti-tumor T-cell repertoire or support very large-scale immune screening for biomarker discovery. Robust methods for the routine assessment of the quantity and quality of antigen-specific T cells remain, however, essential. This review discusses selected methods that are commonly used for T-cell monitoring and summarizes the advantages and limitations of these assays. We also present a new functional assay, which specifically detects activated β2 integrins within a very short time following CD8+ T-cell stimulation. Because of its unique and favorable characteristics, this assay could be useful for implementation into our T-cell monitoring toolbox.
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Affiliation(s)
- Cécile Gouttefangeas
- Department of Immunology, Interfaculty Institute for Cell Biology, Eberhard Karls University, Auf der Morgenstelle 15, 72076, Tübingen, Germany.
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Partner Site Tübingen, Tübingen, Germany.
| | - Juliane Schuhmacher
- Department of Immunology, Interfaculty Institute for Cell Biology, Eberhard Karls University, Auf der Morgenstelle 15, 72076, Tübingen, Germany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Partner Site Tübingen, Tübingen, Germany
| | - Stoyan Dimitrov
- Institute of Medical Psychology and Behavioral Neurobiology, Eberhard Karls University, Otfried-Müller Straße 25, 72076, Tübingen, Germany.
- German Center for Diabetes Research, 72076, Tübingen, Germany.
- Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich at the University of Tübingen (IDM), Otfried-Müller Straße 10, 72076, Tübingen, Germany.
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Pantaleo G, Janes H, Karuna S, Grant S, Ouedraogo GL, Allen M, Tomaras GD, Frahm N, Montefiori DC, Ferrari G, Ding S, Lee C, Robb ML, Esteban M, Wagner R, Bart PA, Rettby N, McElrath MJ, Gilbert PB, Kublin JG, Corey L. Safety and immunogenicity of a multivalent HIV vaccine comprising envelope protein with either DNA or NYVAC vectors (HVTN 096): a phase 1b, double-blind, placebo-controlled trial. Lancet HIV 2019; 6:e737-e749. [PMID: 31601541 PMCID: PMC7156919 DOI: 10.1016/s2352-3018(19)30262-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 06/20/2019] [Accepted: 07/19/2019] [Indexed: 01/06/2023]
Abstract
BACKGROUND Up to now, immunisation regimens that have been assessed for development of HIV vaccines have included purified envelope (Env) protein among the boosting components of the regimen. We postulated that co-administration of Env protein with either a DNA or NYVAC vector during priming would result in early generation of antibody responses to the Env V1/V2 region, which are important markers for effective protection against infection. We aimed to assess the safety and immunogenicity of a multivalent HIV vaccine including either DNA or NYVAC vectors alone or in combination with Env glycoprotein (gp120) followed by a co-delivered NYVAC and Env protein boost. METHODS We did a single-centre, double-blind, placebo-controlled phase 1b trial at the Centre Hospitalier Universitaire Vaudois (Lausanne, Switzerland). We included healthy volunteers aged 18-50 years who were at low risk of HIV infection. We randomly allocated participants using computer-generated random numbers to one of four vaccination schedules or placebo (4:1), and within these schedules participants were allocated either active treatment (T1, T2, T3, and T4) or placebo (C1, C2, C3, and C4). T1 consisted of two doses of NYVAC vector followed by two doses of NYVAC vector and gp120 Env protein; T2 comprised four doses of NYVAC vector and gp120 Env protein; T3 was two doses of DNA vector followed by two doses of NYVAC vector and gp120 Env protein; and T4 was two doses of DNA vector and gp120 Env protein followed by two doses of NYVAC vector and gp120 Env protein. Placebo injections were matched to the corresponding active treatment group. Doses were administered by injection at months 0, 1, 3, and 6. Primary outcomes were safety and immunogenicity of the vaccine schedules. Immune response measures included cross-clade and epitope-specific binding antibodies, neutralising antibodies, and antibody-dependent cell-mediated cytotoxicity measured 2 weeks after the month 1, 3, and 6 vaccinations. This trial is registered with ClinicalTrials.gov, NCT01799954. FINDINGS Between Aug 23, 2012, and April 18, 2013, 148 healthy adult volunteers were screened for the trial, of whom 96 participants were enrolled. 20 individuals were allocated to each active treatment group (groups T1-4; n=80) and four were assigned to each placebo group (groups C1-4; n=16). Vaccines containing the NYVAC vector (groups T1 and T2) were associated with more frequent severe reactogenicity and more adverse events than were vaccines containing the DNA vector (groups T3 and T4). The most frequent adverse events judged related to study product were lymphadenopathy (n=9) and hypoaesthesia (n=2). Two participants, one in the placebo group and one in the DNA-primed T3 group, had serious adverse events that were judged unrelated to study product. One participant in the T3 group died from cranial trauma after a motor vehicle accident. Across the active treatment groups, IgG responses 2 weeks after the 6-month dose of vaccine were 74-95%. Early administration of gp120 Env protein (groups T2 and T4) was associated with a substantially earlier and higher area under the curve for gp120 Env binding, production of anti-V1/V2 and neutralising antibodies, and better antibody-response coverage over a period of 18 months, compared with vaccination regimens that delayed administration of gp120 Env protein until the 3-month vaccination (groups T1 and T3). INTERPRETATION Co-administration of gp120 Env protein components with DNA or NYVAC vectors during priming led to early and potent induction of Env V1/V2 IgG binding antibody responses. This immunisation approach should be considered for induction of preventive antibodies in future HIV vaccine efficacy trials. FUNDING National Institutes of Health, National Institute of Allergy and Infectious Diseases, and the Bill & Melinda Gates Foundation.
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Affiliation(s)
- Giuseppe Pantaleo
- Service of Immunology and Allergy, and Swiss Vaccine Research Institute, Lausanne University Hospital, Lausanne, Switzerland.
| | - Holly Janes
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Shelly Karuna
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Shannon Grant
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - G Laissa Ouedraogo
- Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA; US Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Mary Allen
- Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Georgia D Tomaras
- Department of Surgery, Duke Human Vaccine Institute, Duke University Medical Center, Durham, NC, USA
| | - Nicole Frahm
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA; Bill & Melinda Gates Medical Research Institute, Cambridge, MA, USA
| | - David C Montefiori
- Department of Surgery, Duke Human Vaccine Institute, Duke University Medical Center, Durham, NC, USA
| | - Guido Ferrari
- Department of Surgery, Duke Human Vaccine Institute, Duke University Medical Center, Durham, NC, USA
| | - Song Ding
- EuroVacc Foundation, Lausanne, Switzerland
| | - Carter Lee
- Global Solutions for Infectious Diseases, South San Francisco, CA, USA
| | - Merlin L Robb
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA; Henry M Jackson Foundation for the Advancement of Military Medicine, Bethesda, MD, USA
| | - Mariano Esteban
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones Científicas, Madrid, Spain
| | - Ralf Wagner
- Institute of Medical Microbiology and Hygiene, University of Regensburg, Regensburg, Germany; Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Regensburg, Germany
| | - Pierre-Alexandre Bart
- Service of Immunology and Allergy, and Swiss Vaccine Research Institute, Lausanne University Hospital, Lausanne, Switzerland
| | - Nils Rettby
- Service of Immunology and Allergy, and Swiss Vaccine Research Institute, Lausanne University Hospital, Lausanne, Switzerland
| | - M Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Peter B Gilbert
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - James G Kublin
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Lawrence Corey
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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59
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Vojtech L, Zhang M, Davé V, Levy C, Hughes SM, Wang R, Calienes F, Prlic M, Nance E, Hladik F. Extracellular vesicles in human semen modulate antigen-presenting cell function and decrease downstream antiviral T cell responses. PLoS One 2019; 14:e0223901. [PMID: 31622420 PMCID: PMC6797208 DOI: 10.1371/journal.pone.0223901] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Accepted: 10/01/2019] [Indexed: 02/06/2023] Open
Abstract
Human semen contains trillions of extracellular vesicles (SEV) similar in size to sexually transmitted viruses and loaded with potentially bioactive miRNAs, proteins and lipids. SEV were shown to inhibit HIV and Zika virus infectivity, but whether SEV are able also to affect subsequent immune responses is unknown. We found that SEV efficiently bound to and entered antigen-presenting cells (APC) and thus we set out to further dissect the impact of SEV on APC function and the impact on downstream T cell responses. In an APC–T cell co-culture system, SEV exposure to APC alone markedly reduced antigen-specific cytokine production, degranulation and cytotoxicity by antigen-specific memory CD8+ T cells. In contrast, inhibition of CD4+ T cell responses required both APC and T cell exposure to SEV. Surprisingly, SEV did not alter MHC or co-stimulatory receptor expression on APCs, but caused APCs to upregulate indoleamine 2,3 deoxygenase, an enzyme known to indirectly inhibit T cells. Thus, SEV reduce the ability of APCs to activate T cells. We propose here that these immune-inhibitory properties of SEV may be intended to prevent immune responses against semen-derived antigens, but can be hi-jacked by genitally acquired viral infections to compromise adaptive cellular immunity.
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Affiliation(s)
- Lucia Vojtech
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
- * E-mail: (LV); (FH)
| | - Mengying Zhang
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington, United States of America
| | - Veronica Davé
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
| | - Claire Levy
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
| | - Sean M. Hughes
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
| | - Ruofan Wang
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
| | - Fernanda Calienes
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
| | - Martin Prlic
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
- Department of Immunology, University of Washington, Seattle, Washington, United States of America
| | - Elizabeth Nance
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, Washington, United States of America
- Department of Chemical Engineering, University of Washington, Seattle, Washington, United States of America
| | - Florian Hladik
- Department of Obstetrics and Gynecology, University of Washington, Seattle, Washington, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Medicine, Division of Allergy and Infectious Diseases, University of Washington, Seattle, Washington, United States of America
- * E-mail: (LV); (FH)
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60
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Kim K, Shim D, Lee JS, Zaitsev K, Williams JW, Kim KW, Jang MY, Seok Jang H, Yun TJ, Lee SH, Yoon WK, Prat A, Seidah NG, Choi J, Lee SP, Yoon SH, Nam JW, Seong JK, Oh GT, Randolph GJ, Artyomov MN, Cheong C, Choi JH. Transcriptome Analysis Reveals Nonfoamy Rather Than Foamy Plaque Macrophages Are Proinflammatory in Atherosclerotic Murine Models. Circ Res 2019; 123:1127-1142. [PMID: 30359200 DOI: 10.1161/circresaha.118.312804] [Citation(s) in RCA: 266] [Impact Index Per Article: 53.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
RATIONALE Monocyte infiltration into the subintimal space and its intracellular lipid accumulation are the most prominent features of atherosclerosis. To understand the pathophysiology of atherosclerotic disease, we need to understand the characteristics of lipid-laden foamy macrophages in the subintimal space during atherosclerosis. OBJECTIVE We sought to examine the transcriptomic profiles of foamy and nonfoamy macrophages isolated from atherosclerotic intima. METHODS AND RESULTS Single-cell RNA sequencing analysis of CD45+ leukocytes from murine atherosclerotic aorta revealed that there are macrophage subpopulations with distinct differentially expressed genes involved in various functional pathways. To specifically characterize the intimal foamy macrophages of plaque, we developed a lipid staining-based flow cytometric method for analyzing the lipid-laden foam cells of atherosclerotic aortas. We used the fluorescent lipid probe BODIPY493/503 and assessed side-scattered light as an indication of cellular granularity. BODIPYhiSSChi foamy macrophages were found residing in intima and expressing CD11c. Foamy macrophage accumulation determined by flow cytometry was positively correlated with the severity of atherosclerosis. Bulk RNA sequencing analysis showed that compared with nonfoamy macrophages, foamy macrophages expressed few inflammatory genes but many lipid-processing genes. Intimal nonfoamy macrophages formed the major population expressing IL (interleukin)-1β and many other inflammatory transcripts in atherosclerotic aorta. CONCLUSIONS RNA sequencing analysis of intimal macrophages from atherosclerotic aorta revealed that lipid-loaded plaque macrophages are not likely the plaque macrophages that drive lesional inflammation.
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Affiliation(s)
- Kyeongdae Kim
- From the Department of Life Sciences (K.K., D.S., M.-Y.J., H.S.J., S.H.L., S.-H.Y., J.W.N., J.-H.C.), College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Dahee Shim
- From the Department of Life Sciences (K.K., D.S., M.-Y.J., H.S.J., S.H.L., S.-H.Y., J.W.N., J.-H.C.), College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Jun Seong Lee
- Laboratory of Cellular Physiology and Immunology (J.S.L., T.J.Y., C.C.), Institut de Recherches Cliniques de Montréal, Canada
| | - Konstantin Zaitsev
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO (K.Z., J.W.W., K.-W.K., G.J.R., M.N.A.).,Computer Technologies Department, ITMO University, Saint Petersburg, Russia (K.Z.)
| | - Jesse W Williams
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO (K.Z., J.W.W., K.-W.K., G.J.R., M.N.A.)
| | - Ki-Wook Kim
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO (K.Z., J.W.W., K.-W.K., G.J.R., M.N.A.)
| | - Man-Young Jang
- From the Department of Life Sciences (K.K., D.S., M.-Y.J., H.S.J., S.H.L., S.-H.Y., J.W.N., J.-H.C.), College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Hyung Seok Jang
- From the Department of Life Sciences (K.K., D.S., M.-Y.J., H.S.J., S.H.L., S.-H.Y., J.W.N., J.-H.C.), College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Tae Jin Yun
- Laboratory of Cellular Physiology and Immunology (J.S.L., T.J.Y., C.C.), Institut de Recherches Cliniques de Montréal, Canada.,Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Canada (T.J.Y., C.C.)
| | - Seung Hyun Lee
- From the Department of Life Sciences (K.K., D.S., M.-Y.J., H.S.J., S.H.L., S.-H.Y., J.W.N., J.-H.C.), College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Won Kee Yoon
- Biomedical Mouse Resource Center, Korean Research Institute of Bioscience and Biotechnology (KRIBB), Chungbuk, Republic of Korea (W.K.Y.)
| | - Annik Prat
- Laboratory of Biochemical Neuroendocrinology (A.P., N.G.S.), Institut de Recherches Cliniques de Montréal, Canada
| | - Nabil G Seidah
- Laboratory of Biochemical Neuroendocrinology (A.P., N.G.S.), Institut de Recherches Cliniques de Montréal, Canada
| | - Jungsoon Choi
- Department of Mathematics (J.C.), College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Seung-Pyo Lee
- Cardiovascular Center and Department of Internal Medicine, Seoul National University Hospital, Republic of Korea (S.-P.L.)
| | - Sang-Ho Yoon
- From the Department of Life Sciences (K.K., D.S., M.-Y.J., H.S.J., S.H.L., S.-H.Y., J.W.N., J.-H.C.), College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Jin Wu Nam
- From the Department of Life Sciences (K.K., D.S., M.-Y.J., H.S.J., S.H.L., S.-H.Y., J.W.N., J.-H.C.), College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
| | - Je Kyung Seong
- Laboratory of Developmental Biology and Genomics, Research Institute for Veterinary Science, College of Veterinary Medicine, Korea Mouse Phenotyping Center, Seoul National University, Republic of Korea (J.K.S.)
| | - Goo Taeg Oh
- Department of Life Sciences, Immune and Vascular Cell Network Research Center, National Creative Initiatives, Ewha Womans University, Seoul, Republic of Korea (G.T.O.)
| | - Gwendalyn J Randolph
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO (K.Z., J.W.W., K.-W.K., G.J.R., M.N.A.)
| | - Maxim N Artyomov
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO (K.Z., J.W.W., K.-W.K., G.J.R., M.N.A.)
| | - Cheolho Cheong
- Laboratory of Cellular Physiology and Immunology (J.S.L., T.J.Y., C.C.), Institut de Recherches Cliniques de Montréal, Canada.,Division of Experimental Medicine, Department of Medicine, McGill University, Montreal, Canada (T.J.Y., C.C.)
| | - Jae-Hoon Choi
- From the Department of Life Sciences (K.K., D.S., M.-Y.J., H.S.J., S.H.L., S.-H.Y., J.W.N., J.-H.C.), College of Natural Sciences, Research Institute for Natural Sciences, Hanyang University, Seoul, Republic of Korea
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61
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Dynamics of the Humoral Immune Response to a Prime-Boost Ebola Vaccine: Quantification and Sources of Variation. J Virol 2019; 93:JVI.00579-19. [PMID: 31243126 PMCID: PMC6714808 DOI: 10.1128/jvi.00579-19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 06/16/2019] [Indexed: 12/14/2022] Open
Abstract
The Ebola vaccine based on Ad26.ZEBOV/MVA-BN-Filo prime-boost regimens is being evaluated in multiple clinical trials. The long-term immune response to the vaccine is unknown, including factors associated with the response and variability around the response. We analyzed data from three phase 1 trials performed by the EBOVAC1 Consortium in four countries: the United Kingdom, Kenya, Tanzania, and Uganda. Participants were randomized into four groups based on the interval between prime and boost immunizations (28 or 56 days) and the sequence in which Ad26.ZEBOV and MVA-BN-Filo were administered. Consecutive enzyme-linked immunosorbent assay (ELISA) measurements of the IgG binding antibody concentrations against the Kikwit glycoprotein (GP) were available for 177 participants to assess the humoral immune response up to 1 year postprime. Using a mathematical model for the dynamics of the humoral response, from 7 days after the boost immunization up to 1 year after the prime immunization, we estimated the durability of the antibody response and the influence of different factors on the dynamics of the humoral response. Ordinary differential equations (ODEs) described the dynamics of antibody response and two populations of antibody-secreting cells (ASCs), short-lived (SL) and long-lived (LL). Parameters of the ODEs were estimated using a population approach. We estimated that half of the LL ASCs could persist for at least 5 years. The vaccine regimen significantly affected the SL ASCs and the antibody peak but not the long-term response. The LL ASC compartment dynamics differed significantly by geographic regions analyzed, with a higher long-term antibody persistence in European subjects. These differences could not be explained by the observed differences in cellular immune response.IMPORTANCE With no available licensed vaccines or therapies, the West African Ebola virus disease epidemic of 2014 to 2016 caused 11,310 deaths. Following this outbreak, the development of vaccines has been accelerated. Combining different vector-based vaccines as heterologous regimens could induce a durable immune response, assessed through antibody concentrations. Based on data from phase 1 trials in East Africa and Europe, the dynamics of the humoral immune response from 7 days after the boost immunization onwards were modeled to estimate the durability of the response and understand its variability. Antibody production is maintained by a population of long-lived cells. Estimation suggests that half of these cells can persist for at least 5 years in humans. Differences in prime-boost vaccine regimens affect only the short-term immune response. Geographical differences in long-lived cell dynamics were inferred, with higher long-term antibody concentrations induced in European participants.
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62
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Qin K, Boppana S, Du VY, Carlson JM, Yue L, Dilernia DA, Hunter E, Mailliard RB, Mallal SA, Bansal A, Goepfert PA. CD8 T cells targeting adapted epitopes in chronic HIV infection promote dendritic cell maturation and CD4 T cell trans-infection. PLoS Pathog 2019; 15:e1007970. [PMID: 31398241 PMCID: PMC6703693 DOI: 10.1371/journal.ppat.1007970] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 08/21/2019] [Accepted: 07/08/2019] [Indexed: 11/18/2022] Open
Abstract
HIV-1 frequently escapes from CD8 T cell responses via HLA-I restricted adaptation, leading to the accumulation of adapted epitopes (AE). We previously demonstrated that AE compromise CD8 T cell responses during acute infection and are associated with poor clinical outcomes. Here, we examined the impact of AE on CD8 T cell responses and their biological relevance in chronic HIV infection (CHI). In contrast to acute infection, the majority of AE are immunogenic in CHI. Longitudinal analyses from acute to CHI showed an increased frequency and magnitude of AE-specific IFNγ responses compared to NAE-specific ones. These AE-specific CD8 T cells also were more cytotoxic to CD4 T cells. In addition, AE-specific CD8 T cells expressed lower levels of PD1 and CD57, as well as higher levels of CD28, suggesting a more activated and less exhausted phenotype. During CHI, viral sequencing identified AE-encoding strains as the dominant quasispecies. Despite increased CD4 T cell cytotoxicity, CD8 T cells responding to AE promoted dendritic cell (DC) maturation and CD4 T cell trans-infection perhaps explaining why AE are predominant in CHI. Taken together, our data suggests that the emergence of AE-specific CD8 T cell responses in CHI confers a selective advantage to the virus by promoting DC-mediated CD4 T cell trans-infection. HIV-1 infection remains a critical public health threat across the world. Over the past two decades, CD8 T cells have been clearly shown to exert immune pressure on HIV and drive viral adaptation. Previously, our group reported that such HLA-I associated adaptations can predict clinical outcomes and are beneficial to HIV-1 as CD8 T cells are unable to recognize epitopes with adaptation in acute HIV infection. However, it is still unclear how HIV-1 adaptation impacts CD8 T cells during chronic HIV infection. In this study, we observed an enhancement of CD8 T cell responses targeting adapted epitopes in chronic infection. Although these responses were cytotoxic, they also exhibited a “helper” effect by promoting viral infection of CD4 T cells via interaction with dendritic cells. This phenomenon may contribute to the persistence of adapted viruses. In summary, these findings present a novel mechanism of CD8 T cell driven HIV-1 adaptation.
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Affiliation(s)
- Kai Qin
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Sushma Boppana
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
| | - Victor Y. Du
- The Salk Institute for Biological Studies, La Jolla, California, United States of America
| | | | - Ling Yue
- Emory Vaccine Center at Yerkes National Primate Research Center and Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, United States of America
| | - Dario A. Dilernia
- Emory Vaccine Center at Yerkes National Primate Research Center and Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, United States of America
| | - Eric Hunter
- Emory Vaccine Center at Yerkes National Primate Research Center and Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia, United States of America
| | - Robbie B. Mailliard
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Simon A. Mallal
- Division of Infectious Diseases, Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Anju Bansal
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- * E-mail: (AB); (PAG)
| | - Paul A. Goepfert
- Department of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States of America
- * E-mail: (AB); (PAG)
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63
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Chapuis AG, Egan DN, Bar M, Schmitt TM, McAfee MS, Paulson KG, Voillet V, Gottardo R, Ragnarsson GB, Bleakley M, Yeung CC, Muhlhauser P, Nguyen HN, Kropp LA, Castelli L, Wagener F, Hunter D, Lindberg M, Cohen K, Seese A, McElrath MJ, Duerkopp N, Gooley TA, Greenberg PD. T cell receptor gene therapy targeting WT1 prevents acute myeloid leukemia relapse post-transplant. Nat Med 2019; 25:1064-1072. [PMID: 31235963 DOI: 10.1038/s41591-019-0472-9] [Citation(s) in RCA: 220] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 04/23/2019] [Accepted: 04/26/2019] [Indexed: 01/12/2023]
Abstract
Relapse after allogeneic hematopoietic cell transplantation (HCT) is the leading cause of death in patients with acute myeloid leukemia (AML) entering HCT with poor-risk features1-3. When HCT does produce prolonged relapse-free survival, it commonly reflects graft-versus-leukemia effects mediated by donor T cells reactive with antigens on leukemic cells4. As graft T cells have not been selected for leukemia specificity and frequently recognize proteins expressed by many normal host tissues, graft-versus-leukemia effects are often accompanied by morbidity and mortality from graft-versus-host disease5. Thus, AML relapse risk might be more effectively reduced with T cells expressing receptors (TCRs) that target selected AML antigens6. We therefore isolated a high-affinity Wilms' Tumor Antigen 1-specific TCR (TCRC4) from HLA-A2+ normal donor repertoires, inserted TCRC4 into Epstein-Bar virus-specific donor CD8+ T cells (TTCR-C4) to minimize graft-versus-host disease risk and enhance transferred T cell survival7,8, and infused these cells prophylactically post-HCT into 12 patients ( NCT01640301 ). Relapse-free survival was 100% at a median of 44 months following infusion, while a concurrent comparative group of 88 patients with similar risk AML had 54% relapse-free survival (P = 0.002). TTCR-C4 maintained TCRC4 expression, persisted long-term and were polyfunctional. This strategy appears promising for preventing AML recurrence in individuals at increased risk of post-HCT relapse.
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Affiliation(s)
- Aude G Chapuis
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,University of Washington School of Medicine, Seattle, WA, USA
| | - Daniel N Egan
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,University of Washington School of Medicine, Seattle, WA, USA
| | - Merav Bar
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,University of Washington School of Medicine, Seattle, WA, USA
| | - Thomas M Schmitt
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Megan S McAfee
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Kelly G Paulson
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,University of Washington School of Medicine, Seattle, WA, USA
| | - Valentin Voillet
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Raphael Gottardo
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Gunnar B Ragnarsson
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Landspítali Háskólasjúkrahús, Reykjavík, Iceland
| | - Marie Bleakley
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,University of Washington School of Medicine, Seattle, WA, USA
| | - Cecilia C Yeung
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,University of Washington School of Medicine, Seattle, WA, USA
| | | | - Hieu N Nguyen
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Alpine Biotech, Seattle, WA, USA
| | - Lara A Kropp
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Therapeutic Products Program, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Luca Castelli
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Therapeutic Products Program, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Felecia Wagener
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Daniel Hunter
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Marcus Lindberg
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,School of Informatics, University of Edinburgh, Edinburgh, UK
| | - Kristen Cohen
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Aaron Seese
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - M Juliana McElrath
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,University of Washington School of Medicine, Seattle, WA, USA.,Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Natalie Duerkopp
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Ted A Gooley
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.,Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Philip D Greenberg
- Program in Immunology, Fred Hutchinson Cancer Research Center, Seattle, WA, USA. .,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA. .,University of Washington School of Medicine, Seattle, WA, USA. .,Departments of Immunology and Medicine, University of Washington, Seattle, WA, USA.
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64
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Lu LL, Smith MT, Yu KKQ, Luedemann C, Suscovich TJ, Grace PS, Cain A, Yu WH, McKitrick TR, Lauffenburger D, Cummings RD, Mayanja-Kizza H, Hawn TR, Boom WH, Stein CM, Fortune SM, Seshadri C, Alter G. IFN-γ-independent immune markers of Mycobacterium tuberculosis exposure. Nat Med 2019; 25:977-987. [PMID: 31110348 PMCID: PMC6559862 DOI: 10.1038/s41591-019-0441-3] [Citation(s) in RCA: 148] [Impact Index Per Article: 29.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 04/01/2019] [Indexed: 12/31/2022]
Abstract
Exposure to Mycobacterium tuberculosis (Mtb) results in heterogeneous clinical outcomes including primary progressive tuberculosis and latent Mtb infection (LTBI). Mtb infection is identified using the tuberculin skin test and interferon-γ (IFN-γ) release assay IGRA, and a positive result may prompt chemoprophylaxis to prevent progression to tuberculosis. In the present study, we report on a cohort of Ugandan individuals who were household contacts of patients with TB. These individuals were highly exposed to Mtb but tested negative by IFN-γ release assay and tuberculin skin test, ‘resisting’ development of classic LTBI. We show that ‘resisters’ possess IgM, class-switched IgG antibody responses and non-IFN-γ T cell responses to the Mtb-specific proteins ESAT6 and CFP10, immunologic evidence of exposure to Mtb. Compared to subjects with classic LTBI, ‘resisters’ display enhanced antibody avidity and distinct Mtb-specific IgG Fc profiles. These data reveal a distinctive adaptive immune profile among Mtb-exposed subjects, supporting an expanded definition of the host response to Mtb exposure, with implications for public health and the design of clinical trials. New immune biomarkers of exposure to tuberculosis may require a rethink of evidence of Mycobacterium tuberculosis infection and control.
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Affiliation(s)
- Lenette L Lu
- Department of Immunology and Infectious Diseases, Harvard TH Chan School of Public Health, Boston, MA, USA.,Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Malisa T Smith
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Krystle K Q Yu
- Department of Medicine, University of Washington, Seattle, WA, USA
| | | | | | | | - Adam Cain
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Wen Han Yu
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA.,Department of Biological Engineering, MIT, Cambridge, MA, USA
| | - Tanya R McKitrick
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | | | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | | | - Thomas R Hawn
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - W Henry Boom
- Department of Medicine, Case Western Reserve University and Univ. Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Catherine M Stein
- Department of Medicine, Case Western Reserve University and Univ. Hospitals Cleveland Medical Center, Cleveland, OH, USA.,Department of Population & Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Sarah M Fortune
- Department of Immunology and Infectious Diseases, Harvard TH Chan School of Public Health, Boston, MA, USA.,Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA
| | - Chetan Seshadri
- Department of Medicine, University of Washington, Seattle, WA, USA.
| | - Galit Alter
- Ragon Institute of MGH, MIT and Harvard, Cambridge, MA, USA.
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65
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Spearman P, Tomaras GD, Montefiori DC, Huang Y, Elizaga ML, Ferrari G, Alam SM, Isaacs A, Ahmed H, Hural J, McElrath MJ, Ouedraogo L, Pensiero M, Butler C, Kalams SA, Overton ET, Barnett SW. Rapid Boosting of HIV-1 Neutralizing Antibody Responses in Humans Following a Prolonged Immunologic Rest Period. J Infect Dis 2019; 219:1755-1765. [PMID: 30615119 PMCID: PMC6775047 DOI: 10.1093/infdis/jiz008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Accepted: 01/04/2019] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND The durability and breadth of human immunodeficiency virus type 1 (HIV-1)-specific immune responses elicited through vaccination are important considerations in the development of an effective HIV-1 vaccine. Responses to HIV-1 envelope subunit protein (Env) immunization in humans are often described as short-lived. METHODS We enrolled 16 healthy volunteers who had received priming with an HIV-1 subtype B Env vaccine given with MF59 adjuvant 5-17 years previously and 20 healthy unprimed volunteers. Three booster immunizations with a heterologous subtype C trimeric gp140 protein vaccine were administered to the primed group, and the same subtype C gp140 protein vaccination regimen was administered to the unprimed subjects. RESULTS Binding antibodies and neutralizing antibodies to tier 1 viral isolates were detected in the majority of previously primed subjects. Remarkably, a single dose of protein boosted binding and neutralizing antibody titers in 100% of primed subjects following this prolonged immunologic rest period, and CD4+ T-cell responses were boosted in 75% of primed individuals. CONCLUSIONS These results demonstrate that HIV-1 protein immunogens can elicit durable memory T- and B-cell responses and that strong tier 1 virus neutralizing responses can be elicited by a single booster dose of protein following a long immunologic rest period. However, we found no evidence that cross-clade boosting led to a significantly broadened neutralizing antibody response.
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Affiliation(s)
- Paul Spearman
- Department of Pediatrics, Cincinnati Children’s Hospital, Ohio
| | - Georgia D Tomaras
- Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - David C Montefiori
- Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Ying Huang
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Marnie L Elizaga
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Guido Ferrari
- Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - S Munir Alam
- Department of Surgery, Duke University Medical Center, Durham, North Carolina
| | - Abby Isaacs
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Hasan Ahmed
- Department of Biology, Emory University, Atlanta, Georgia
| | - John Hural
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - M Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Laissa Ouedraogo
- Division of AIDS, National Institute for Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Michael Pensiero
- Division of AIDS, National Institute for Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Chris Butler
- Division of AIDS, National Institute for Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Spyros A Kalams
- Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee
| | - Edgar Turner Overton
- Department of Medicine, University of Alabama at Birmingham, Cambridge, Massachusetts
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66
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IL-21 Expands HIV-1-Specific CD8 + T Memory Stem Cells to Suppress HIV-1 Replication In Vitro. J Immunol Res 2019; 2019:1801560. [PMID: 31183385 PMCID: PMC6515191 DOI: 10.1155/2019/1801560] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 10/16/2018] [Accepted: 03/27/2019] [Indexed: 01/05/2023] Open
Abstract
Due to the existence of viral reservoirs, the rebound of human immunodeficiency virus type 1 (HIV-1) viremia can occur within weeks after discontinuing combined antiretroviral therapy. Immunotherapy could potentially be applied to eradicate reactivated HIV-1 in latently infected CD4+ T lymphocytes. Although the existence of HIV-1-specific CD8+ T memory stem cells (TSCMs) is well established, there are currently no reports regarding methods using CD8+ TSCMs to treat HIV-1 infection. In this study, we quantified peripheral blood antigen-specific CD8+ TSCMs and then expanded HIV-1-specific TSCMs that targeted optimal antigen epitopes (SL9, IL9, and TL9) in the presence of interleukin- (IL-) 21 or IL-15. The suppressive capacity of the expanded CD8+ TSCMs on HIV-1 production was measured by assessing cell-associated viral RNA and performing viral outgrowth assays. We found that the number of unmutated TL9-specific CD8+ TSCMs positively correlated with the abundance of CD4+ T cells and that the expression of IFN-γ was higher in TL9-specific CD8+ TSCMs than that in non-TL9-specific CD8+ TSCMs. Moreover, the antiviral capacities of IL-21-stimulated CD8+ TSCMs exceeded those of conventional CD8+ memory T cells and IL-15-stimulated CD8+ TSCMs. Thus, we demonstrated that IL-21 could efficiently expand HIV-1-specific CD8+ TSCMs to suppress HIV-1 replication. Our study provides new insight into the function of IL-21 in the in vitro suppression of HIV-1 replication.
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67
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Miller NJ, Church CD, Fling SP, Kulikauskas R, Ramchurren N, Shinohara MM, Kluger HM, Bhatia S, Lundgren L, Cheever MA, Topalian SL, Nghiem P. Merkel cell polyomavirus-specific immune responses in patients with Merkel cell carcinoma receiving anti-PD-1 therapy. J Immunother Cancer 2018; 6:131. [PMID: 30482247 PMCID: PMC6258401 DOI: 10.1186/s40425-018-0450-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 11/12/2018] [Indexed: 01/23/2023] Open
Abstract
BACKGROUND Merkel cell carcinoma (MCC) is an aggressive skin cancer that frequently responds to anti-PD-1 therapy. MCC is associated with sun exposure and, in 80% of cases, Merkel cell polyomavirus (MCPyV). MCPyV-specific T and B cell responses provide a unique opportunity to study cancer-specific immunity throughout PD-1 blockade therapy. METHODS Immune responses were assessed in patients (n = 26) with advanced MCC receiving pembrolizumab. Peripheral blood mononuclear cells (PBMC) were collected at baseline and throughout treatment. MCPyV-oncoprotein antibodies were quantified and T cells were assessed for MCPyV-specificity via tetramer staining and/or cytokine secretion. Pre-treatment tumor biopsies were analyzed for T cell receptor clonality. RESULTS MCPyV oncoprotein antibodies were detectable in 15 of 17 (88%) of virus-positive MCC (VP-MCC) patients. Antibodies decreased in 10 of 11 (91%) patients with responding tumors. Virus-specific T cells decreased over time in patients who had a complete response, and increased in patients who had persistent disease. Tumors that were MCPyV(+) had a strikingly more clonal (less diverse) intratumoral TCR repertoire than virus-negative tumors (p = 0.0001). CONCLUSIONS Cancer-specific T and B cell responses generally track with disease burden during PD-1 blockade, in proportion to presence of antigen. Intratumoral TCR clonality was significantly greater in VP-MCC than VN-MCC tumors, suggesting expansion of a limited number of dominant clones in response to fewer immunogenic MCPyV antigens. In contrast, VN-MCC tumors had lower clonality, suggesting a diverse T cell response to numerous neoantigens. These findings reveal differences in tumor-specific immunity for VP-MCC and VN-MCC, both of which often respond to anti-PD-1 therapy.
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MESH Headings
- Antineoplastic Agents, Immunological/pharmacology
- Antineoplastic Agents, Immunological/therapeutic use
- B-Lymphocytes/drug effects
- B-Lymphocytes/immunology
- B-Lymphocytes/metabolism
- Biomarkers, Tumor
- Carcinoma, Merkel Cell/diagnosis
- Carcinoma, Merkel Cell/drug therapy
- Carcinoma, Merkel Cell/etiology
- Humans
- Immunomodulation/drug effects
- Lymphocyte Activation/immunology
- Merkel cell polyomavirus/immunology
- Molecular Targeted Therapy
- Polyomavirus Infections/complications
- Polyomavirus Infections/immunology
- Programmed Cell Death 1 Receptor/antagonists & inhibitors
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/metabolism
- T-Cell Antigen Receptor Specificity/genetics
- T-Cell Antigen Receptor Specificity/immunology
- T-Lymphocytes/drug effects
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Treatment Outcome
- Tumor Virus Infections/complications
- Tumor Virus Infections/immunology
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Affiliation(s)
- Natalie J. Miller
- Department of Medicine, Divisions of Dermatology and Medical Oncology, University of Washington, 850 Republican Street, Seattle, WA 98109 USA
| | - Candice D. Church
- Department of Medicine, Divisions of Dermatology and Medical Oncology, University of Washington, 850 Republican Street, Seattle, WA 98109 USA
| | - Steven P. Fling
- Cancer Immunotherapy Trials Network, Fred Hutchinson Cancer Research Center, Seattle, WA USA
| | - Rima Kulikauskas
- Department of Medicine, Divisions of Dermatology and Medical Oncology, University of Washington, 850 Republican Street, Seattle, WA 98109 USA
| | - Nirasha Ramchurren
- Cancer Immunotherapy Trials Network, Fred Hutchinson Cancer Research Center, Seattle, WA USA
| | - Michi M. Shinohara
- Department of Medicine, Divisions of Dermatology and Medical Oncology, University of Washington, 850 Republican Street, Seattle, WA 98109 USA
| | - Harriet M. Kluger
- Comprehensive Cancer Center, Section of Medical Oncology, Yale University School of Medicine, New Haven, CT USA
| | - Shailender Bhatia
- Department of Medicine, Divisions of Dermatology and Medical Oncology, University of Washington, 850 Republican Street, Seattle, WA 98109 USA
| | - Lisa Lundgren
- Cancer Immunotherapy Trials Network, Fred Hutchinson Cancer Research Center, Seattle, WA USA
| | - Martin A. Cheever
- Cancer Immunotherapy Trials Network, Fred Hutchinson Cancer Research Center, Seattle, WA USA
- Division of Medical Oncology, Department of Medicine, University of Washington, Seattle, WA USA
| | - Suzanne L. Topalian
- Department of Surgery, Johns Hopkins University School of Medicine, and Johns Hopkins Bloomberg~Kimmel Institute for Cancer Immunotherapy, Baltimore, MD USA
| | - Paul Nghiem
- Department of Medicine, Divisions of Dermatology and Medical Oncology, University of Washington, 850 Republican Street, Seattle, WA 98109 USA
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68
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Olsen LR, Leipold MD, Pedersen CB, Maecker HT. The anatomy of single cell mass cytometry data. Cytometry A 2018; 95:156-172. [DOI: 10.1002/cyto.a.23621] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 08/28/2018] [Accepted: 09/05/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Lars R. Olsen
- Department of Bio and Health InformaticsTechnical University of Denmark Copenhagen Denmark
- Center for Genomic MedicineCopenhagen University Hospital Copenhagen Denmark
| | - Michael D. Leipold
- Institute for Immunity, Transplantation, and InfectionStanford University School of Medicine Stanford CA
| | - Christina B. Pedersen
- Department of Bio and Health InformaticsTechnical University of Denmark Copenhagen Denmark
- Center for Genomic MedicineCopenhagen University Hospital Copenhagen Denmark
| | - Holden Terry Maecker
- Institute for Immunity, Transplantation, and InfectionStanford University School of Medicine Stanford CA
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69
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Yan LM, Li OTW, Poh CM, Perera RAPM, Valkenburg SA, Peiris M, Poon LLM. Combined use of live-attenuated and inactivated influenza vaccines to enhance heterosubtypic protection. Virology 2018; 525:73-82. [PMID: 30248524 DOI: 10.1016/j.virol.2018.09.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 09/10/2018] [Accepted: 09/11/2018] [Indexed: 01/04/2023]
Abstract
The limited protection of current commerical vaccines necessitates the investigation of novel vaccine strategies for unpredictable outbreaks. To investigate the feasibility of using vaccines derived from Group 1 influenza A virus to induce broadly cross-reactive immune responses against multiple influenza subtypes, we tested a panel of sequential 4-dose immunization regimens in mice. Mice were treated with inactivated (seasonal H1N1, pandemic H1N1 and H5N1) and vaccinia virus-based H5N1 live-attenuated vaccines in different combinations. Mice were then challenged by viruses of either Group 1 (H1N1) or Group 2 (H3N2, H7N7) influenza virus. All studied sequential 4-dose vaccinations could induce some degrees of heterosubtypic protection in mice. Amongst all these regimens, the combined use of inactivated and live-attenuated vaccines could achieve the best heterologous protection. These results highlight the synergistic effect of combining different vaccine platforms to enhance heterosubtypic protection against influenza viruses.
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Affiliation(s)
- Li-Meng Yan
- Centre of Influenza Research, School of Public Health, The University of Hong Kong, Hong Kong SAR, China
| | - Olive T W Li
- Centre of Influenza Research, School of Public Health, The University of Hong Kong, Hong Kong SAR, China
| | - Chek M Poh
- Centre of Influenza Research, School of Public Health, The University of Hong Kong, Hong Kong SAR, China
| | - Ranawaka A P M Perera
- Centre of Influenza Research, School of Public Health, The University of Hong Kong, Hong Kong SAR, China
| | - Sophie A Valkenburg
- Centre of Influenza Research, School of Public Health, The University of Hong Kong, Hong Kong SAR, China; HKU-Pasteur Research Pole, School of Public Health, The University of Hong Kong, Hong Kong SAR, China
| | - Malik Peiris
- Centre of Influenza Research, School of Public Health, The University of Hong Kong, Hong Kong SAR, China
| | - Leo L M Poon
- Centre of Influenza Research, School of Public Health, The University of Hong Kong, Hong Kong SAR, China.
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70
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Patricia D'Souza M, Allen MA, Baumblatt JAG, Boggiano C, Crotty S, Grady C, Havenar-Daughton C, Heit A, Hu DJ, Kunwar N, McElrath MJ. Innovative approaches to track lymph node germinal center responses to evaluate development of broadly neutralizing antibodies in human HIV vaccine trials. Vaccine 2018; 36:5671-5677. [PMID: 30097219 DOI: 10.1016/j.vaccine.2018.07.071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 07/16/2018] [Accepted: 07/28/2018] [Indexed: 01/29/2023]
Abstract
Phase 1 clinical studies will soon evaluate novel HIV-1 envelope immunogens targeting distinct 'germline' and memory B cell receptors to ultimately elicit HIV-1 broadly neutralizing antibodies (bNAbs). The National Institute of Allergy and Infectious Diseases (NIAID) recently convened a panel of US-based expert scientists, clinicians, sponsors and ethicists to discuss the role of sampling draining lymph nodes within preventive HIV vaccine trials. The meeting addressed the importance of evaluating germinal center (GC) responses following immunization to predict bNAb potency and breadth, and reviewed key aspects of this procedure within the clinical research setting, including informed consent, adverse event monitoring, study participant acceptability, medical expertise and training. We review highlights from the meeting and discuss the advantages and disadvantages of sampling lymph nodes by excisional biopsies compared to fine needle aspirations (FNA) in the context of prophylactic HIV vaccine trials.
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Affiliation(s)
| | | | | | | | - Shane Crotty
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, CA, USA
| | | | - Colin Havenar-Daughton
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, CA, USA
| | - Antje Heit
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, USA
| | - Dale J Hu
- Division of AIDS, NIAID, Bethesda, MD, USA
| | | | - M Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, USA
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71
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Bowyer G, Rampling T, Powlson J, Morter R, Wright D, Hill AVS, Ewer KJ. Activation-induced Markers Detect Vaccine-Specific CD4⁺ T Cell Responses Not Measured by Assays Conventionally Used in Clinical Trials. Vaccines (Basel) 2018; 6:vaccines6030050. [PMID: 30065162 PMCID: PMC6161310 DOI: 10.3390/vaccines6030050] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/26/2018] [Accepted: 07/30/2018] [Indexed: 12/27/2022] Open
Abstract
Immunogenicity of T cell-inducing vaccines, such as viral vectors or DNA vaccines and Bacillus Calmette-Guérin (BCG), are frequently assessed by cytokine-based approaches. While these are sensitive methods that have shown correlates of protection in various vaccine studies, they only identify a small proportion of the vaccine-specific T cell response. Responses to vaccination are likely to be heterogeneous, particularly when comparing prime and boost or assessing vaccine performance across diverse populations. Activation-induced markers (AIM) can provide a broader view of the total antigen-specific T cell response to enable a more comprehensive evaluation of vaccine immunogenicity. We tested an AIM assay for the detection of vaccine-specific CD4+ and CD8+ T cell responses in healthy UK adults vaccinated with viral vectored Ebola vaccine candidates, ChAd3-EBO-Z and MVA-EBO-Z. We used the markers, CD25, CD134 (OX40), CD274 (PDL1), and CD107a, to sensitively identify vaccine-responsive T cells. We compared the use of OX40+CD25+ and OX40+PDL1+ in CD4+ T cells and OX40+CD25+ and CD25+CD107a+ in CD8+ T cells for their sensitivity, specificity, and associations with other measures of vaccine immunogenicity. We show that activation-induced markers can be used as an additional method of demonstrating vaccine immunogenicity, providing a broader picture of the global T cell response to vaccination.
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Affiliation(s)
- Georgina Bowyer
- The Jenner Institute, University of Oxford, Oxford OX3 7DQ, UK.
| | - Tommy Rampling
- The Jenner Institute, University of Oxford, Oxford OX3 7DQ, UK.
| | | | - Richard Morter
- The Jenner Institute, University of Oxford, Oxford OX3 7DQ, UK.
| | - Daniel Wright
- The Jenner Institute, University of Oxford, Oxford OX3 7DQ, UK.
| | - Adrian V S Hill
- The Jenner Institute, University of Oxford, Oxford OX3 7DQ, UK.
| | - Katie J Ewer
- The Jenner Institute, University of Oxford, Oxford OX3 7DQ, UK.
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72
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Layton ED, Yu KKQ, Smith MT, Scriba TJ, De Rosa SC, Seshadri C. Validation of a CD1b tetramer assay for studies of human mycobacterial infection or vaccination. J Immunol Methods 2018; 458:44-52. [PMID: 29684428 PMCID: PMC5960426 DOI: 10.1016/j.jim.2018.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 04/02/2018] [Accepted: 04/18/2018] [Indexed: 01/08/2023]
Abstract
CD1 tetramers loaded with lipid antigens facilitate the identification of rare lipid-antigen specific T cells present in human blood and tissue. Because CD1 proteins are structurally non-polymorphic, these tetramers can be applied to genetically diverse human populations, unlike MHC-I and MHC-II tetramers. However, there are no standardized assays to quantify and characterize lipid antigen-specific T cells present within clinical samples. We incorporated CD1b tetramers loaded with the mycobacterial lipid glucose monomycolate (GMM) into a multi-parameter flow cytometry assay. Using a GMM-specific T-cell line, we demonstrate that the assay is linear, reproducible, repeatable, precise, accurate, and has a limit of detection of approximately 0.007%. Having formally validated this assay, we performed a cross-sectional study of healthy U.S. controls and South African adolescents with and without latent tuberculosis infection (LTBI). We show that GMM-specific T cells are specifically detected in South African subjects with LTBI and not in U.S. healthy controls. This assay can be expanded to include additional tetramers or phenotypic markers to characterize GMM-specific T cells in studies of mycobacterial infection, disease, or vaccination.
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Affiliation(s)
- Erik D Layton
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Krystle K Q Yu
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Malisa T Smith
- Department of Medicine, University of Washington, Seattle, WA, USA
| | - Thomas J Scriba
- South African Tuberculosis Vaccine Initiative and Institute of Infectious Disease and Molecular Medicine, Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Stephen C De Rosa
- Department of Laboratory Medicine, University of Washington, Seattle, WA, USA; Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Chetan Seshadri
- Department of Medicine, University of Washington, Seattle, WA, USA.
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73
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DeWitt WS, Yu KKQ, Wilburn DB, Sherwood A, Vignali M, Day CL, Scriba TJ, Robins HS, Swanson WJ, Emerson RO, Bradley PH, Seshadri C. A Diverse Lipid Antigen-Specific TCR Repertoire Is Clonally Expanded during Active Tuberculosis. THE JOURNAL OF IMMUNOLOGY 2018; 201:888-896. [PMID: 29914888 DOI: 10.4049/jimmunol.1800186] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 05/21/2018] [Indexed: 01/06/2023]
Abstract
Human T cells that recognize lipid Ags presented by highly conserved CD1 proteins often express semi-invariant TCRs, but the true diversity of lipid Ag-specific TCRs remains unknown. We use CD1b tetramers and high-throughput immunosequencing to analyze thousands of TCRs from ex vivo-sorted or in vitro-expanded T cells specific for the mycobacterial lipid Ag, glucose monomycolate. Our results reveal a surprisingly diverse repertoire resulting from editing of germline-encoded gene rearrangements analogous to MHC-restricted TCRs. We used a distance-based metric (TCRDist) to show how this diverse TCR repertoire builds upon previously reported conserved motifs by including subject-specific TCRs. In a South African cohort, we show that TCRDist can identify clonal expansion of diverse glucose monomycolate-specific TCRs and accurately distinguish patients with active tuberculosis from control subjects. These data suggest that similar mechanisms govern the selection and expansion of peptide and lipid Ag-specific T cells despite the nonpolymorphic nature of CD1.
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Affiliation(s)
- William S DeWitt
- Adaptive Biotechnologies, Seattle, WA 98102.,Computational Biology Program, Fred Hutchinson Cancer Research Center, Seattle, WA 98109.,Department of Genome Sciences, University of Washington, Seattle, WA 98195
| | - Krystle K Q Yu
- Department of Medicine, University of Washington, Seattle, WA 98195
| | - Damien B Wilburn
- Department of Genome Sciences, University of Washington, Seattle, WA 98195
| | | | | | - Cheryl L Day
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA 30322.,Emory Vaccine Center, Atlanta, GA 30329
| | - Thomas J Scriba
- South African Tuberculosis Vaccine Initiative, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town 7925, South Africa.,Division of Immunology, Department of Pathology, University of Cape Town, Cape Town 7925, South Africa
| | - Harlan S Robins
- Adaptive Biotechnologies, Seattle, WA 98102.,Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109
| | - Willie J Swanson
- Department of Genome Sciences, University of Washington, Seattle, WA 98195
| | | | - Philip H Bradley
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA 98109; and.,Institute for Protein Design, University of Washington, Seattle, WA 98195
| | - Chetan Seshadri
- Department of Medicine, University of Washington, Seattle, WA 98195;
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74
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Bekker LG, Moodie Z, Grunenberg N, Laher F, Tomaras GD, Cohen KW, Allen M, Malahleha M, Mngadi K, Daniels B, Innes C, Bentley C, Frahm N, Morris DE, Morris L, Mkhize NN, Montefiori DC, Sarzotti-Kelsoe M, Grant S, Yu C, Mehra VL, Pensiero MN, Phogat S, DiazGranados CA, Barnett SW, Kanesa-Thasan N, Koutsoukos M, Michael NL, Robb ML, Kublin JG, Gilbert PB, Corey L, Gray GE, McElrath MJ. Subtype C ALVAC-HIV and bivalent subtype C gp120/MF59 HIV-1 vaccine in low-risk, HIV-uninfected, South African adults: a phase 1/2 trial. Lancet HIV 2018; 5:e366-e378. [PMID: 29898870 PMCID: PMC6028742 DOI: 10.1016/s2352-3018(18)30071-7] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 04/03/2018] [Accepted: 04/14/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Modest efficacy was reported for the HIV vaccine tested in the RV144 trial, which comprised a canarypox vector (ALVAC) and envelope (env) glycoprotein (gp120). These vaccine components were adapted to express HIV-1 antigens from strains circulating in South Africa, and the adjuvant was changed to increase immunogenicity. Furthermore, 12-month immunisation was added to improve durability. In the HIV Vaccine Trials Network (HVTN) 100 trial, we aimed to assess this new regionally adapted regimen for advancement to efficacy testing. METHODS HVTN 100 is a phase 1/2, randomised controlled, double-blind trial at six community research sites in South Africa. We randomly allocated adults (aged 18-40 years) without HIV infection and at low risk of HIV infection to either the vaccine regimen (intramuscular injection of ALVAC-HIV vector [vCP2438] at 0, 1, 3, 6, and 12 months plus bivalent subtype C gp120 and MF59 adjuvant at 3, 6, and 12 months) or placebo, in a 5:1 ratio. Randomisation was done by computer-generated list. Participants, investigators, and those assessing outcomes were masked to random assignments. Primary outcomes included safety and immune responses associated with correlates of HIV risk in RV144, 2 weeks after vaccination at 6 months (month 6·5). We compared per-protocol participants (ie, those who completed the first four vaccinations and provided samples at month 6·5) from HVTN 100 with stored RV144 samples assayed contemporaneously. This trial is registered with the South African National Clinical Trials Registry (DOH-27-0215-4796) and ClinicalTrials.gov (NCT02404311). FINDINGS Between Feb 9, 2015, and May 26, 2015, 252 participants were enrolled, of whom 210 were assigned vaccine and 42 placebo. 222 participants were included in the per-protocol analysis (185 vaccine and 37 placebo). 185 (100%) vaccine recipients developed IgG binding antibodies to all three vaccine-matched gp120 antigens with significantly higher titres (3·6-8·8 fold; all p<0·0001) than the corresponding vaccine-matched responses of RV144. The CD4+ T-cell response to the ZM96.C env protein in HVTN 100 was 56·4% (n=102 responders), compared with a response of 41·4% (n=79 responders) to 92TH023.AE in RV144 (p=0·0050). The IgG response to the 1086.C variable loops 1 and 2 (V1V2) env antigen in HVTN 100 was 70·5% (95% CI 63·5-76·6; n=129 responders), lower than the response to V1V2 in RV144 (99·0%, 95% CI 96·4-99·7; n=199 responders). INTERPRETATION Although the IgG response to the HVTN 100 vaccine was lower than that reported in RV144, it exceeded the predicted 63% threshold needed for 50% vaccine efficacy using a V1V2 correlate of protection model. Thus, the subtype C HIV vaccine regimen qualified for phase 2b/3 efficacy testing, a critical next step of vaccine development. FUNDING US National Institute of Allergy and Infectious Diseases (NIAID), and Bill & Melinda Gates Foundation.
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Affiliation(s)
- Linda-Gail Bekker
- The Desmond Tutu HIV Centre, University of Cape Town, Cape Town, South Africa.
| | - Zoe Moodie
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Nicole Grunenberg
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Fatima Laher
- Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Georgia D Tomaras
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | - Kristen W Cohen
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Mary Allen
- Vaccine Research Program, Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | | | - Kathryn Mngadi
- Centre for the Programme of Aids Research in South Africa (CAPRISA), Durban, South Africa; School of Laboratory Medicine and Medical Sciences, University of KwaZulu-Natal, Durban, South Africa
| | - Brodie Daniels
- South African Medical Research Council, Durban, South Africa
| | - Craig Innes
- The Aurum Institute, Klerksdorp Research Centre, Klerksdorp, South Africa
| | - Carter Bentley
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Nicole Frahm
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Daryl E Morris
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Lynn Morris
- National Institute for Communicable Diseases, National Health Laboratory Service, Johannesburg, South Africa
| | - Nonhlanhla N Mkhize
- National Institute for Communicable Diseases, National Health Laboratory Service, Johannesburg, South Africa
| | - David C Montefiori
- Duke Human Vaccine Institute, Duke University School of Medicine, Durham, NC, USA
| | | | - Shannon Grant
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Chenchen Yu
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Vijay L Mehra
- Vaccine Research Program, Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Michael N Pensiero
- Vaccine Research Program, Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | | | | | - Susan W Barnett
- GSK Vaccines, Cambridge, MA, USA; Bill & Melinda Gates Foundation, Seattle, WA, USA
| | | | | | - Nelson L Michael
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Merlin L Robb
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - James G Kublin
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Peter B Gilbert
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Lawrence Corey
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Glenda E Gray
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA; Perinatal HIV Research Unit, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa; South African Medical Research Council, Cape Town, South Africa
| | - M Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
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75
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Carrio R, Zhang G, Drake DR, Schanen BC. A novel dendritic cell-based direct ex vivo assay for detection and enumeration of circulating antigen-specific human T cells. Cytotechnology 2018; 70:1325-1335. [PMID: 29736810 DOI: 10.1007/s10616-018-0222-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Accepted: 04/17/2018] [Indexed: 11/24/2022] Open
Abstract
Although a variety of assays have been used to examine T cell responses in vitro, standardized ex vivo detection of antigen-specific CD4+ T cells from human circulatory PBMCs remains constrained by low-dimensional characterization outputs and the need for polyclonal, mitogen-induced expansion methods to generate detectable response signals. To overcome these limitations, we developed a novel methodology utilizing antigen-pulsed autologous human dendritic target cells in a rapid and sensitive assay to accurately enumerate antigen-specific CD4+ T cell precursor frequency by multiparametric flow cytometry. With this approach, we demonstrate the ability to reproducibly quantitate poly-functional T cell responses following both primary and recall antigenic stimulation. Furthermore, this approach enables more comprehensive phenotypic profiling of circulating antigen-specific CD4+ T cells, providing valuable insights into the pre-existing polarization of antigen-specific T cells in humans. Combined, this approach permits sensitive and detailed ex vivo detection of antigen-specific CD4+ T cells delivering an important tool for advancing vaccine, immune-oncology and other therapeutic studies.
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Affiliation(s)
- Roberto Carrio
- Sanofi Pasteur, VaxDesign Campus, 2501 Discovery Drive Suite 300, Orlando, FL, 32826, USA
| | - Ge Zhang
- Sanofi Pasteur, VaxDesign Campus, 2501 Discovery Drive Suite 300, Orlando, FL, 32826, USA
| | - Donald R Drake
- Sanofi Pasteur, VaxDesign Campus, 2501 Discovery Drive Suite 300, Orlando, FL, 32826, USA
| | - Brian C Schanen
- Sanofi Pasteur, VaxDesign Campus, 2501 Discovery Drive Suite 300, Orlando, FL, 32826, USA.
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76
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Boillat-Blanco N, Tumbo AMN, Perreau M, Amelio P, Ramaiya KL, Mganga M, Schindler C, Gagneux S, Reither K, Probst-Hensch N, Pantaleo G, Daubenberger C, Portevin D. Hyperglycaemia is inversely correlated with live M. bovis BCG-specific CD4 + T cell responses in Tanzanian adults with latent or active tuberculosis. IMMUNITY INFLAMMATION AND DISEASE 2018; 6:345-353. [PMID: 29642283 PMCID: PMC5946156 DOI: 10.1002/iid3.222] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/30/2018] [Accepted: 02/26/2018] [Indexed: 01/09/2023]
Abstract
Introduction The rising prevalence of Diabetes mellitus (DM) in high TB‐endemic countries may adversely affect sustainability of TB control since DM constitutes a risk factor for development of active tuberculosis (TB). The impact of DM on TB specific adaptive immune responses remains poorly addressed, particularly in people living in Sub‐Saharan countries. We performed a functional characterization of TB specific cellular immune response in Tanzanian subjects with active or latent Mycobacterium tuberculosis (Mtb) infection stratified by their diabetic status. Methods HIV negative active TB patients (≥18 years) with Xpert MTB/RIF positive pulmonary TB were included before starting TB treatment in Dar es Salaam, Tanzania between April and December 2013. HIV negative healthy controls latently infected with TB but without past TB history were also included. Active and latent TB patients were stratified in two groups according to their diabetic status. Peripheral Blood Mononuclear cells were stimulated with either live M. bovis BCG or Mtb‐specific peptide pools and analyzed by intracellular cytokine staining and polychromatic flow cytometry. Results Our results show a lower frequency of IFN‐γ CD4+ T cells in patients with active TB and DM compared to patients with active TB only after live M. bovis BCG (p = 0.04) but not after Mtb peptide pools re‐stimulation. Irrespective of TB status, level of glycaemia is selectively inversely correlated with IFN‐γ and TNF‐α CD4+ T cell production (p = 0.02 and p = 0.03) after live M. bovis BCG stimulation. Conclusions These results support the hypothesis that hyperglycaemia negatively impacts antigen processing and/or presentation of whole mycobacteria delaying secretion of key cytokines involved in TB immunity.
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Affiliation(s)
- Noémie Boillat-Blanco
- Ifakara Health Institute, Dar es Salaam, United Republic of Tanzania.,Swiss Tropical and Public Health Institute, Basel, Switzerland.,Department of Sciences, University of Basel, Basel, Switzerland.,Infectious Diseases Service, Lausanne University Hospital, Lausanne, Switzerland
| | | | - Matthieu Perreau
- Division of Immunology and Allergy, Lausanne University Hospital, Lausanne, Switzerland
| | - Patrizia Amelio
- Division of Immunology and Allergy, Lausanne University Hospital, Lausanne, Switzerland
| | - Kaushik L Ramaiya
- Shree Hindu Mandal Hospital and Muhimbili University of Health Sciences, Dar es Salaam, United Republic of Tanzania
| | - Maliwaza Mganga
- Kinondoni Municipal Council, National Tuberculosis Program, Dar es Salaam, United Republic of Tanzania
| | - Christian Schindler
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,Department of Sciences, University of Basel, Basel, Switzerland
| | - Sebastien Gagneux
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,Department of Sciences, University of Basel, Basel, Switzerland
| | - Klaus Reither
- Ifakara Health Institute, Dar es Salaam, United Republic of Tanzania.,Swiss Tropical and Public Health Institute, Basel, Switzerland.,Department of Sciences, University of Basel, Basel, Switzerland
| | - Nicole Probst-Hensch
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,Department of Sciences, University of Basel, Basel, Switzerland
| | - Giuseppe Pantaleo
- Division of Immunology and Allergy, Lausanne University Hospital, Lausanne, Switzerland
| | - Claudia Daubenberger
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,Department of Sciences, University of Basel, Basel, Switzerland
| | - Damien Portevin
- Swiss Tropical and Public Health Institute, Basel, Switzerland.,Department of Sciences, University of Basel, Basel, Switzerland
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77
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Ballegaard V, Brændstrup P, Pedersen KK, Kirkby N, Stryhn A, Ryder LP, Gerstoft J, Nielsen SD. Cytomegalovirus-specific T-cells are associated with immune senescence, but not with systemic inflammation, in people living with HIV. Sci Rep 2018; 8:3778. [PMID: 29491459 PMCID: PMC5830877 DOI: 10.1038/s41598-018-21347-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 02/02/2018] [Indexed: 12/29/2022] Open
Abstract
In people living with HIV (PLWHIV), coinfection with cytomegalovirus (CMV) has been associated with inflammation, immunological ageing, and increased risk of severe non-AIDS related comorbidity. The effect of CMV-specific immune responses on systemic inflammation, immune activation and T-cell senescence was evaluated in 53 PLWHIV treated with combination antiretroviral therapy (cART). Activated-, terminally differentiated-, naïve-, and senescent T-cells were assessed by flow cytometry, and plasma levels of CMV IgG, interleukin-6, tumor necrosis factor-α, high-sensitivity C-reactive protein and soluble-CD14 were measured. In PLWHIV, expression of interleukin-2, tumor necrosis factor-α and interferon-γ was measured by intracellular-cytokine-staining after stimulation of T-cells with CMV-pp65, CMV-IE1, and CMV-gB. Increased CMV-specific T-cell responses were associated with a higher ratio of terminally differentiated/naïve CD8+ T-cells and with increased proportions of senescent CD8+ T-cells, but not with systemic inflammation or sCD14. Increased CMV-specific CD4+ T-cell responses were associated with increased proportions of activated CD8+ T-cells. In PLWHIV with expansion of CMV-specific T-cells or increased T-cell senescence, CMV-specific polyfunctionality was maintained. That the magnitude of the CMV-specific T-cell response was associated with a senescent immune phenotype, suggests that a dysregulated immune response against CMV may contribute to the immunological ageing often described in PLWHIV despite stable cART.
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Affiliation(s)
- Vibe Ballegaard
- Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
- Department of Clinical Immunology, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Peter Brændstrup
- Department of Clinical Immunology, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
- Department of Hematology, Herlev University Hospital, Herlev, Denmark
| | - Karin Kaereby Pedersen
- Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Nikolai Kirkby
- Department of Medical Microbiology, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Anette Stryhn
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Lars P Ryder
- Department of Clinical Immunology, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Jan Gerstoft
- Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark
| | - Susanne Dam Nielsen
- Viro-immunology Research Unit, Department of Infectious Diseases, Rigshospitalet, University Hospital of Copenhagen, Copenhagen, Denmark.
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78
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Hijikata Y, Okazaki T, Tanaka Y, Murahashi M, Yamada Y, Yamada K, Takahashi A, Inoue H, Kishimoto J, Nakanishi Y, Oda Y, Nakamura Y, Tani K. A phase I clinical trial of RNF43 peptide-related immune cell therapy combined with low-dose cyclophosphamide in patients with advanced solid tumors. PLoS One 2018; 13:e0187878. [PMID: 29293510 PMCID: PMC5749706 DOI: 10.1371/journal.pone.0187878] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 10/26/2017] [Indexed: 12/22/2022] Open
Abstract
The objective of this study was to investigate the safety and the tolerability of combined cellular immunotherapy with low-dose cyclophosphamide (CPA) in patients with advanced solid tumors. This study targeted a novel tumor-associated antigen, ring finger protein 43 (RNF43). Eligible patients were resistant to standard therapy, HLA-A*24:02- or A*02:01-positive and exhibiting high RNF43 expression in their tumor cells. They were administered 300 mg/m2 CPA followed by autologous lymphocytes, preliminarily cultured with autologous RNF43 peptide-pulsed dendritic cells (DCs), RNF43 peptide-pulsed DCs and systemic low dose interleukin-2. The primary endpoint was safety whereas the secondary endpoint was immunological and clinical response to treatment. Ten patients, in total, were enrolled in this trial. Primarily, no adverse events greater than Grade 3 were observed. Six out of 10 patients showed stable disease (SD) on day 49, while 4 other patients showed progressive disease. In addition, one patient with SD exhibited a partial response after the second trial. The frequency of regulatory T cells (Tregs) in patients with SD significantly decreased after CPA administration. The ratio of interferon-γ-producing, tumor-reactive CD8+ T cells increased with time in patients with SD. We successfully showed that the combination of immune cell therapy and CPA was safe, might induce tumor-specific immune responses and clinical efficacy, and was accompanied by a decreased ratio of Tregs in patients with RNF43-positive advanced solid tumors.
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Affiliation(s)
- Yasuki Hijikata
- Department of Advanced Cell and Molecular Therapy, Kyushu University Hospital, Fukuoka, Japan
| | - Toshihiko Okazaki
- ARO Advanced Medical Center, Kyushu University Hospital, Fukuoka, Japan
| | - Yoshihiro Tanaka
- ARO Advanced Medical Center, Kyushu University Hospital, Fukuoka, Japan
| | - Mutsunori Murahashi
- Department of Advanced Cell and Molecular Therapy, Kyushu University Hospital, Fukuoka, Japan
| | - Yuichi Yamada
- Department of Anatomic Pathology, Pathological Sciences, Kyushu University, Fukuoka, Japan
| | - Kazunari Yamada
- Department of Advanced Cell and Molecular Therapy, Kyushu University Hospital, Fukuoka, Japan
| | - Atsushi Takahashi
- Department of Advanced Cell and Molecular Therapy, Kyushu University Hospital, Fukuoka, Japan
| | - Hiroyuki Inoue
- Department of Advanced Cell and Molecular Therapy, Kyushu University Hospital, Fukuoka, Japan
| | - Junji Kishimoto
- ARO Advanced Medical Center, Kyushu University Hospital, Fukuoka, Japan
| | - Yoichi Nakanishi
- Research Institute of Diseases of Chest, Kyushu University, Fukuoka, Japan
| | - Yoshinao Oda
- Department of Anatomic Pathology, Pathological Sciences, Kyushu University, Fukuoka, Japan
| | - Yusuke Nakamura
- Human genome center, Institute of medical science, University of Tokyo, Tokyo, Japan
| | - Kenzaburo Tani
- Department of Advanced Cell and Molecular Therapy, Kyushu University Hospital, Fukuoka, Japan
- Project Division of ALA Advanced Medical Research, Advanced Medical Science of Internal Medicine, The Institute of Medical Science, The University of Tokyo, Tokyo, Japan
- * E-mail:
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79
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Ake JA, Schuetz A, Pegu P, Wieczorek L, Eller MA, Kibuuka H, Sawe F, Maboko L, Polonis V, Karasavva N, Weiner D, Sekiziyivu A, Kosgei J, Missanga M, Kroidl A, Mann P, Ratto-Kim S, Anne Eller L, Earl P, Moss B, Dorsey-Spitz J, Milazzo M, Laissa Ouedraogo G, Rizvi F, Yan J, Khan AS, Peel S, Sardesai NY, Michael NL, Ngauy V, Marovich M, Robb ML. Safety and Immunogenicity of PENNVAX-G DNA Prime Administered by Biojector 2000 or CELLECTRA Electroporation Device With Modified Vaccinia Ankara-CMDR Boost. J Infect Dis 2017; 216:1080-1090. [PMID: 28968759 DOI: 10.1093/infdis/jix456] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 09/01/2017] [Indexed: 01/24/2023] Open
Abstract
Background We report the first-in-human safety and immunogenicity evaluation of PENNVAX-G DNA/modified vaccinia Ankara-Chiang Mai double recombinant (MVA-CMDR) prime-boost human immuonodeficiency virus (HIV) vaccine, with intramuscular DNA delivery by either Biojector 2000 needle-free injection system (Biojector) or CELLECTRA electroporation device. Methods Healthy, HIV-uninfected adults were randomized to receive 4 mg of PENNVAX-G DNA delivered intramuscularly by Biojector or electroporation at baseline and week 4 followed by intramuscular injection of 108 plaque forming units of MVA-CMDR at weeks 12 and 24. The open-label part A was conducted in the United States, followed by a double-blind, placebo-controlled part B in East Africa. Solicited and unsolicited adverse events were recorded, and immune responses were measured. Results Eighty-eight of 100 enrolled participants completed all study injections, which were generally safe and well tolerated, with more immediate, but transient, pain in the electroporation group. Cellular responses were observed in 57% of vaccine recipients tested and were CD4 predominant. High rates of binding antibody responses to CRF01_AE antigens, including gp70 V1V2 scaffold, were observed. Neutralizing antibodies were detected in a peripheral blood mononuclear cell assay, and moderate antibody-dependent, cell-mediated cytotoxicity activity was demonstrated. Discussion The PVG/MVA-CMDR HIV-1 vaccine regimen is safe and immunogenic. Substantial differences in safety or immunogenicity between modes of DNA delivery were not observed. Clinical Trials Registration NCT01260727.
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Affiliation(s)
- Julie A Ake
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring
| | - Alexandra Schuetz
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda.,Armed Forces Research Institute of Medical Sciences, Department of Retrovirology, Bangkok, Thailand
| | - Poonam Pegu
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda
| | - Lindsay Wieczorek
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda
| | - Michael A Eller
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda
| | - Hannah Kibuuka
- Makerere University/Walter Reed Project, Kampala, Uganda
| | | | - Leonard Maboko
- National Institute of Medical Research, Mbeya Medical Research Centre, Mbeya, United Republic of Tanzania
| | - Victoria Polonis
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring
| | - Nicos Karasavva
- Armed Forces Research Institute of Medical Sciences, Department of Retrovirology, Bangkok, Thailand
| | | | | | | | - Marco Missanga
- National Institute of Medical Research, Mbeya Medical Research Centre, Mbeya, United Republic of Tanzania
| | - Arne Kroidl
- National Institute of Medical Research, Mbeya Medical Research Centre, Mbeya, United Republic of Tanzania.,Division of Infectious Diseases and Tropical Medicine, Medical Center of the University of Munich, Germany
| | - Philipp Mann
- National Institute of Medical Research, Mbeya Medical Research Centre, Mbeya, United Republic of Tanzania.,Division of Infectious Diseases and Tropical Medicine, Medical Center of the University of Munich, Germany
| | - Silvia Ratto-Kim
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda
| | - Leigh Anne Eller
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda
| | | | | | - Julie Dorsey-Spitz
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda
| | - Mark Milazzo
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda
| | - G Laissa Ouedraogo
- Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda
| | - Farrukh Rizvi
- Military Infectious Diseases Research Program, Ft. Detrick, Maryland
| | - Jian Yan
- Inovio Pharmaceuticals, Inc, Plymouth Meeting, Pennsylvania
| | - Amir S Khan
- Inovio Pharmaceuticals, Inc, Plymouth Meeting, Pennsylvania
| | - Sheila Peel
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring
| | | | - Nelson L Michael
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring
| | - Viseth Ngauy
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring.,Armed Forces Research Institute of Medical Sciences, Department of Retrovirology, Bangkok, Thailand
| | - Mary Marovich
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring
| | - Merlin L Robb
- US Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring.,Henry M. Jackson Foundation for the Advancement of Military Medicine, Bethesda
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80
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Sneller MC, Justement JS, Gittens KR, Petrone ME, Clarridge KE, Proschan MA, Kwan R, Shi V, Blazkova J, Refsland EW, Morris DE, Cohen KW, McElrath MJ, Xu R, Egan MA, Eldridge JH, Benko E, Kovacs C, Moir S, Chun TW, Fauci AS. A randomized controlled safety/efficacy trial of therapeutic vaccination in HIV-infected individuals who initiated antiretroviral therapy early in infection. Sci Transl Med 2017; 9:eaan8848. [PMID: 29212716 PMCID: PMC11059970 DOI: 10.1126/scitranslmed.aan8848] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 10/13/2017] [Indexed: 12/21/2022]
Abstract
Despite substantial clinical benefits, complete eradication of HIV has not been possible using antiretroviral therapy (ART) alone. Strategies that can either eliminate persistent viral reservoirs or boost host immunity to prevent rebound of virus from these reservoirs after discontinuation of ART are needed; one possibility is therapeutic vaccination. We report the results of a randomized, placebo-controlled trial of a therapeutic vaccine regimen in patients in whom ART was initiated during the early stage of HIV infection and whose immune system was anticipated to be relatively intact. The objectives of our study were to determine whether the vaccine was safe and could induce an immune response that would maintain suppression of plasma viremia after discontinuation of ART. Vaccinations were well tolerated with no serious adverse events but produced only modest augmentation of existing HIV-specific CD4+ T cell responses, with little augmentation of CD8+ T cell responses. Compared with placebo, the vaccination regimen had no significant effect on the kinetics or magnitude of viral rebound after interruption of ART and no impact on the size of the HIV reservoir in the CD4+ T cell compartment. Notably, 26% of subjects in the placebo arm exhibited sustained suppression of viremia (<400 copies/ml) after treatment interruption, a rate of spontaneous suppression higher than previously reported. Our findings regarding the degree and kinetics of plasma viral rebound after ART interruption have potentially important implications for the design of future trials testing interventions aimed at achieving ART-free control of HIV infection.
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Affiliation(s)
- Michael C Sneller
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - J Shawn Justement
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Kathleen R Gittens
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA
| | - Mary E Petrone
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Katherine E Clarridge
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | | | - Richard Kwan
- Critical Care Medicine Department, Clinical Center, NIH, Bethesda, MD 20892, USA
| | - Victoria Shi
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Jana Blazkova
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Eric W Refsland
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Daryl E Morris
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - Kristen W Cohen
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
| | - M Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
- Department of Global Health, University of Washington, Seattle, WA 98195, USA
| | - Rong Xu
- Profectus BioSciences Inc., Tarrytown, NY 10591, USA
| | | | | | - Erika Benko
- Maple Leaf Medical Clinic, Toronto, Ontario M5G 1K2, Canada
| | - Colin Kovacs
- Maple Leaf Medical Clinic, Toronto, Ontario M5G 1K2, Canada
- Department of Medicine, University of Toronto, Toronto, Ontario M5S 1A1, Canada
| | - Susan Moir
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
| | - Tae-Wook Chun
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA.
| | - Anthony S Fauci
- Laboratory of Immunoregulation, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD 20892, USA
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81
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Savic M, Dembinski JL, Laake I, Hungnes O, Cox R, Oftung F, Trogstad L, Mjaaland S. Distinct T and NK cell populations may serve as immune correlates of protection against symptomatic pandemic influenza A(H1N1) virus infection during pregnancy. PLoS One 2017; 12:e0188055. [PMID: 29145441 PMCID: PMC5690673 DOI: 10.1371/journal.pone.0188055] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Accepted: 10/31/2017] [Indexed: 11/24/2022] Open
Abstract
Maternal influenza infection during pregnancy is associated with increased risk of morbidity and mortality. However, the link between the anti-influenza immune responses and health-related risks during infection is not well understood. We have analyzed memory T and NK cell mediated immunity (CMI) responses in pandemic influenza A(H1N1)pdm09 (pdm09) virus infected non-vaccinated pregnant women participating in the Norwegian Influenza Pregnancy Cohort (NorFlu). The cohort includes information on immunization, self-reported health and disease status, and biological samples (plasma and PBMC). Infected cases (N = 75) were defined by having a serum hemagglutination inhibition (HI) titer > = 20 to influenza pdm09 virus at the time of delivery, while controls (N = 75) were randomly selected among non-infected pregnant women (HI titer <10). In ELISpot assays cases had higher frequencies of IFNγ+ CD8+ T cells responding to pdm09 virus or conserved CD8 T cell-restricted influenza A virus epitopes, compared to controls. Within this T cell population, frequencies of CD95+ late effector (CD45RA+CCR7-) and naive (CD45RA+CCR7+) CD8+ memory T cells correlated inversely with self-reported influenza illness (ILI) symptoms. ILI symptoms in infected women were also associated with lower numbers of poly-functional (IFNγ+TNFα+, IL2+IFNγ+, IL2+IFNγ+TNFα+) CD4+ T cells and increased frequencies of IFNγ+CD3-CD7+ NK cells compared to asymptomatic cases, or controls, after stimulation with the pdm09 virus. Taken together, virus specific and functionally distinct T and NK cell populations may serve as cellular immune correlates of clinical outcomes of pandemic influenza disease in pregnant women. Our results may provide information important for future universal influenza vaccine design.
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Affiliation(s)
- Miloje Savic
- Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
- KG Jebsen Centre for Influenza Vaccine Research, Oslo-Bergen, Norway
- * E-mail: ;
| | - Jennifer L. Dembinski
- Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
- KG Jebsen Centre for Influenza Vaccine Research, Oslo-Bergen, Norway
| | - Ida Laake
- Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Olav Hungnes
- Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Rebecca Cox
- KG Jebsen Centre for Influenza Vaccine Research, Oslo-Bergen, Norway
- Influenza Centre, Department of Clinical Science, University of Bergen, Bergen, Norway
- Department of Research and Development, Haukeland University Hospital, Bergen, Norway
| | - Fredrik Oftung
- Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
- KG Jebsen Centre for Influenza Vaccine Research, Oslo-Bergen, Norway
| | - Lill Trogstad
- Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Siri Mjaaland
- Infection Control and Environmental Health, Norwegian Institute of Public Health, Oslo, Norway
- KG Jebsen Centre for Influenza Vaccine Research, Oslo-Bergen, Norway
- * E-mail: ;
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82
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DNA Priming Increases Frequency of T-Cell Responses to a Vesicular Stomatitis Virus HIV Vaccine with Specific Enhancement of CD8 + T-Cell Responses by Interleukin-12 Plasmid DNA. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2017; 24:CVI.00263-17. [PMID: 28931520 DOI: 10.1128/cvi.00263-17] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 09/10/2017] [Indexed: 11/20/2022]
Abstract
The HIV Vaccine Trials Network (HVTN) 087 vaccine trial assessed the effect of increasing doses of pIL-12 (interleukin-12 delivered as plasmid DNA) adjuvant on the immunogenicity of an HIV-1 multiantigen (MAG) DNA vaccine delivered by electroporation and boosted with a vaccine comprising an attenuated vesicular stomatitis virus expressing HIV-1 Gag (VSV-Gag). We randomized 100 healthy adults to receive placebo or 3 mg HIV-MAG DNA vaccine (ProfectusVax HIV-1 gag/pol or ProfectusVax nef/tat/vif, env) coadministered with pIL-12 at 0, 250, 1,000, or 1,500 μg intramuscularly by electroporation at 0, 1, and 3 months followed by intramuscular inoculation with 3.4 × 107 PFU VSV-Gag vaccine at 6 months. Immune responses were assessed after the prime and boost and 6 months after the last vaccination. High-dose pIL-12 increased the magnitude of CD8+ T-cell responses postboost compared to no pIL-12 (P = 0.02), while CD4+ T-cell responses after the prime were higher in the absence of pIL-12 than with low- and medium-dose pIL-12 (P ≤ 0.05). The VSV boost increased Gag-specific CD4+ and CD8+ T-cell responses in all groups (P < 0.001 for CD4+ T cells), inducing a median of four Gag epitopes in responders. Six to 9 months after the boost, responses decreased in magnitude, but CD8+ T-cell response rates were maintained. The addition of a DNA prime dramatically improved responses to the VSV vaccine tested previously in the HVTN 090 trial, leading to broad epitope targeting and maintained CD8+ T-cell response rates at early memory. The addition of high-dose pIL-12 given with a DNA prime by electroporation and boosted with VSV-Gag increased the CD8+ T-cell responses but decreased the CD4+ responses. This approach may be advantageous in reshaping the T-cell responses to a variety of chronic infections or tumors. (This study has been registered at ClinicalTrials.gov under registration no. NCT01578889.).
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83
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Reiss S, Baxter AE, Cirelli KM, Dan JM, Morou A, Daigneault A, Brassard N, Silvestri G, Routy JP, Havenar-Daughton C, Crotty S, Kaufmann DE. Comparative analysis of activation induced marker (AIM) assays for sensitive identification of antigen-specific CD4 T cells. PLoS One 2017; 12:e0186998. [PMID: 29065175 PMCID: PMC5655442 DOI: 10.1371/journal.pone.0186998] [Citation(s) in RCA: 198] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 10/11/2017] [Indexed: 11/19/2022] Open
Abstract
The identification and study of antigen-specific CD4 T cells, both in peripheral blood and in tissues, is key for a broad range of immunological research, including vaccine responses and infectious diseases. Detection of these cells is hampered by both their rarity and their heterogeneity, in particular with regards to cytokine secretion profiles. These factors prevent the identification of the total pool of antigen-specific CD4 T cells by classical methods. We have developed assays for the highly sensitive detection of such cells by measuring the upregulation of surface activation induced markers (AIM). Here, we compare two such assays based on concurrent expression of CD69 plus CD40L (CD154) or expression of OX40 plus CD25, and we develop additional AIM assays based on OX40 plus PD-L1 or 4-1BB. We compare the relative sensitivity of these assays for detection of vaccine and natural infection-induced CD4 T cell responses and show that these assays identify distinct, but overlapping populations of antigen-specific CD4 T cells, a subpopulation of which can also be detected on the basis of cytokine synthesis. Bystander activation had minimal effect on AIM markers. However, some T regulatory cells upregulate CD25 upon antigen stimulation. We therefore validated AIM assays designed to exclude most T regulatory cells, for both human and non-human primate (NHP, Macaca mulatta) studies. Overall, through head-to-head comparisons and methodological improvements, we show that AIM assays represent a sensitive and valuable method for the detection of antigen-specific CD4 T cells.
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Affiliation(s)
- Samantha Reiss
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, United States of America
| | - Amy E. Baxter
- CR-CHUM, Université de Montréal, Montreal, Québec, Canada
- Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery (CHAVI-ID), La Jolla, California, United States of America
| | - Kimberly M. Cirelli
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, United States of America
| | - Jennifer M. Dan
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, United States of America
- UCSD School of Medicine, Division of Infectious Diseases, La Jolla, California, United States of America
| | - Antigoni Morou
- CR-CHUM, Université de Montréal, Montreal, Québec, Canada
| | | | | | - Guido Silvestri
- Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery (CHAVI-ID), La Jolla, California, United States of America
- Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Yerkes National Primate Research Center and Emory Vaccine Center, Atlanta, Georgia, United States of America
| | - Jean-Pierre Routy
- Chronic Viral Illnesses Service and Division of Hematology, McGill University Health Centre, Montreal, Québec, Canada
| | - Colin Havenar-Daughton
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, United States of America
- Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery (CHAVI-ID), La Jolla, California, United States of America
| | - Shane Crotty
- Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, California, United States of America
- Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery (CHAVI-ID), La Jolla, California, United States of America
- UCSD School of Medicine, Division of Infectious Diseases, La Jolla, California, United States of America
- * E-mail: (SC); (DEK)
| | - Daniel E. Kaufmann
- CR-CHUM, Université de Montréal, Montreal, Québec, Canada
- Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery (CHAVI-ID), La Jolla, California, United States of America
- * E-mail: (SC); (DEK)
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84
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Posavad CM, Zhao L, Dong L, Jin L, Stevens CE, Magaret AS, Johnston C, Wald A, Zhu J, Corey L, Koelle DM. Enrichment of herpes simplex virus type 2 (HSV-2) reactive mucosal T cells in the human female genital tract. Mucosal Immunol 2017; 10:1259-1269. [PMID: 28051084 PMCID: PMC5496807 DOI: 10.1038/mi.2016.118] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 11/21/2016] [Indexed: 02/04/2023]
Abstract
Local mucosal cellular immunity is critical in providing protection from HSV-2. To characterize and quantify HSV-2-reactive mucosal T cells, lymphocytes were isolated from endocervical cytobrush and biopsy specimens from 17 HSV-2-infected women and examined ex vivo for the expression of markers associated with maturation and tissue residency and for functional T-cell responses to HSV-2. Compared with their circulating counterparts, cervix-derived CD4+ and CD8+ T cells were predominantly effector memory T cells (CCR7-/CD45RA-) and the majority expressed CD69, a marker of tissue residency. Co-expression of CD103, another marker of tissue residency, was highest on cervix-derived CD8+ T cells. Functional HSV-2 reactive CD4+ and CD8+ T-cell responses were detected in cervical samples and a median of 17% co-expressed CD103. HSV-2-reactive CD4+ T cells co-expressed IL-2 and were significantly enriched in the cervix compared with blood. This first direct ex vivo documentation of local enrichment of HSV-2-reactive T cells in the human female genital mucosa is consistent with the presence of antigen-specific tissue-resident memory T cells. Ex vivo analysis of these T cells may uncover tissue-specific mechanisms of local control of HSV-2 to assist the development of vaccine strategies that target protective T cells to sites of HSV-2 infection.
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Affiliation(s)
- Christine M. Posavad
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA,Department of Laboratory Medicine, University of Washington, Seattle, WA
| | - Lin Zhao
- Department of Laboratory Medicine, University of Washington, Seattle, WA
| | - Lichun Dong
- Department of Medicine, University of Washington, Seattle, WA
| | - Lei Jin
- Department of Laboratory Medicine, University of Washington, Seattle, WA
| | | | - Amalia S. Magaret
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA,Department of Laboratory Medicine, University of Washington, Seattle, WA,Department of Biostatistics, University of Washington, Seattle, WA
| | - Christine Johnston
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA,Department of Medicine, University of Washington, Seattle, WA
| | - Anna Wald
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA,Department of Laboratory Medicine, University of Washington, Seattle, WA,Department of Medicine, University of Washington, Seattle, WA,Department of Epidemiology, University of Washington, Seattle, WA
| | - Jia Zhu
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA,Department of Laboratory Medicine, University of Washington, Seattle, WA
| | - Lawrence Corey
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA,Department of Laboratory Medicine, University of Washington, Seattle, WA,Department of Medicine, University of Washington, Seattle, WA
| | - David M. Koelle
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA,Department of Laboratory Medicine, University of Washington, Seattle, WA,Department of Medicine, University of Washington, Seattle, WA,Department of Global Health, University of Washington, Seattle, WA,Benaroya Research Institute, Seattle, WA
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85
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Buchbinder SP, Grunenberg NA, Sanchez BJ, Seaton KE, Ferrari G, Moody MA, Frahm N, Montefiori DC, Hay CM, Goepfert PA, Baden LR, Robinson HL, Yu X, Gilbert PB, McElrath MJ, Huang Y, Tomaras GD. Immunogenicity of a novel Clade B HIV-1 vaccine combination: Results of phase 1 randomized placebo controlled trial of an HIV-1 GM-CSF-expressing DNA prime with a modified vaccinia Ankara vaccine boost in healthy HIV-1 uninfected adults. PLoS One 2017; 12:e0179597. [PMID: 28727817 PMCID: PMC5519050 DOI: 10.1371/journal.pone.0179597] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 05/30/2017] [Indexed: 12/20/2022] Open
Abstract
Background A phase 1 trial of a clade B HIV vaccine in HIV-uninfected adults evaluated the safety and immunogenicity of a DNA prime co-expressing GM-CSF (Dg) followed by different numbers and intervals of modified vaccinia Ankara Boosts (M). Both vaccines produce virus-like particles presenting membrane-bound Env. Methods Four US sites randomized 48 participants to receiving 1/10th the DNA dose as DgDgMMM given at 0, 2, 4, 6 and 8 months, or full dose DgDgM_M or DgDgMM_M regimens, given at 0, 2, 4, and 8 months, and 0, 2, 4, 6, and 10 months, respectively. Peak immunogenicity was measured 2 weeks post-last vaccination. Results All regimens were well tolerated and safe. Full dose DgDgM_M and DgDgMM_M regimens generated Env-specific IgG to HIV-1 Env in >90%, IgG3 in >80%, and IgA in <20% of participants. Responses to gp140 and gp41 targets were more common and of higher magnitude than to gp120 and V1V2. The gp41 antibody included reactivity to the conserved immunodominant region with specificities known to mediate virus capture and phagocytosis and did not cross-react with a panel of intestinal flora antigens. The 3rd dose of MVA increased the avidity of elicited antibody (7.5% to 39%), the ADCC response to Bal gp120 (14% to 64%), and the one-year durability of the IgG3 responses to gp41 by 4-fold (13% vs. 3.5% retention of peak response). The co-expressed GM-CSF did not enhance responses over those in trials testing this vaccine without GM-CSF. Conclusion This DNA/MVA prime-boost regimen induced durable, functional humoral responses that included ADCC, high antibody avidity, and Env IgG1 and IgG3 binding responses to the immunodominant region of gp41. The third, spaced MVA boost improved the overall quality of the antibody response. These products without co-expressed GM-CSF but combined with protein boosts will be considered for efficacy evaluation. Trial registration ClinicalTrials.gov NCT01571960
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Affiliation(s)
- Susan P. Buchbinder
- Bridge HIV, San Francisco Department of Public Health, San Francisco, California, United States of America
- Departments of Medicine, Epidemiology and Biostatistics, University of California, San Francisco, California, United States of America
- * E-mail:
| | - Nicole A. Grunenberg
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Brittany J. Sanchez
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Kelly E. Seaton
- Department of Surgery, Duke Human Vaccine Institute, Durham, North Carolina, United States of America
| | - Guido Ferrari
- Department of Surgery, Duke Human Vaccine Institute, Durham, North Carolina, United States of America
| | - M. Anthony Moody
- Department of Surgery, Duke Human Vaccine Institute, Durham, North Carolina, United States of America
| | - Nicole Frahm
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
| | - David C. Montefiori
- Department of Surgery, Duke Human Vaccine Institute, Durham, North Carolina, United States of America
| | - Christine M. Hay
- Department of Medicine, University of Rochester Medical Center, Rochester, New York, United States of America
| | - Paul A. Goepfert
- Department of Medicine, University of Alabama, Birmingham, Alabama, United States of America
| | - Lindsey R. Baden
- Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts, United States of America
| | | | - Xuesong Yu
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Peter B. Gilbert
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Biostatistics, University of Washington, Seattle, Washington, United States of America
| | - M. Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
| | - Yunda Huang
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Global Health, University of Washington, Seattle, Washington, United States of America
| | - Georgia D. Tomaras
- Department of Surgery, Duke Human Vaccine Institute, Durham, North Carolina, United States of America
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86
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Hamlin RE, Rahman A, Pak TR, Maringer K, Mena I, Bernal-Rubio D, Potla U, Maestre AM, Fredericks AC, Amir EAD, Kasarskis A, Ramos I, Merad M, Fernandez-Sesma A. High-dimensional CyTOF analysis of dengue virus-infected human DCs reveals distinct viral signatures. JCI Insight 2017; 2:92424. [PMID: 28679950 PMCID: PMC5499363 DOI: 10.1172/jci.insight.92424] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 05/19/2017] [Indexed: 01/11/2023] Open
Abstract
Dengue virus (DENV) is the most prevalent mosquito-borne virus causing human disease. Of the 4 DENV serotypes, epidemiological data suggest that DENV-2 secondary infections are associated with more severe disease than DENV-4 infections. Mass cytometry by time-of-flight (CyTOF) was used to dissect immune changes induced by DENV-2 and DENV-4 in human DCs, the initial targets of primary infections that likely affect infection outcomes. Strikingly, DENV-4 replication peaked earlier and promoted stronger innate immune responses, with increased expression of DC activation and migration markers and increased cytokine production, compared with DENV-2. In addition, infected DCs produced higher levels of inflammatory cytokines compared with bystander DCs, which mainly produced IFN-induced cytokines. These high-dimensional analyses during DENV-2 and DENV-4 infections revealed distinct viral signatures marked by different replication strategies and antiviral innate immune induction in DCs, which may result in different viral fitness, transmission, and pathogenesis.
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Affiliation(s)
| | - Adeeb Rahman
- Human Immune Monitoring Core
- Department of Genetics and Genomic Sciences, and
| | - Theodore R. Pak
- Graduate School of Biomedical Sciences
- Department of Genetics and Genomic Sciences, and
- Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Kevin Maringer
- Department of Microbiology
- Department of Microbial Sciences, Faculty of Health and Medical Sciences, University of Surrey, Guildford Surrey, United Kingdom
| | | | | | | | | | | | - El-ad D. Amir
- Human Immune Monitoring Core
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Andrew Kasarskis
- Graduate School of Biomedical Sciences
- Department of Genetics and Genomic Sciences, and
- Icahn Institute for Genomics and Multiscale Biology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | | | - Miriam Merad
- Graduate School of Biomedical Sciences
- Human Immune Monitoring Core
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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87
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Heit A, Schmitz F, Gerdts S, Flach B, Moore MS, Perkins JA, Robins HS, Aderem A, Spearman P, Tomaras GD, De Rosa SC, McElrath MJ. Vaccination establishes clonal relatives of germinal center T cells in the blood of humans. J Exp Med 2017. [PMID: 28637884 PMCID: PMC5502430 DOI: 10.1084/jem.20161794] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Heit et al. describe that in humans, circulating memory T follicular helper cells (cTfh) have a clonal relationship to germinal center Tfh (GCTfh) cells. Upon vaccination, such memory cTfh respond with clonal expansion, activation, and simultaneous expression of a GCTfh-like phenotype. Germinal center T follicular helper cells (GCTfh) in lymphatic tissue are critical for B cell differentiation and protective antibody induction, but whether GCTfh establish clonal derivatives as circulating memory T cells is less understood. Here, we used markers expressed on GCTfh, CXCR5, PD1, and ICOS, to identify potential circulating CXCR5+CD4+ Tfh-like cells (cTfh) in humans, and investigated their functional phenotypes, diversity, and ontogeny in paired donor blood and tonsils, and in blood after vaccination. Based on T cell receptor repertoire analysis, we found that PD-1–expressing cTfh and tonsillar GCTfh cells were clonally related. Furthermore, an activated, antigen-specific PD1+ICOS+ cTfh subset clonally expanded after booster immunization whose frequencies correlated with vaccine-specific serum IgG; these phenotypically resembled GCTfh, and were clonally related to a resting PD1+ICOS− CD4+ memory T cell subset. Thus, we postulate that vaccination establishes clonal relatives of GCTfh within the circulating memory CD4+CXCR5+PD1+ T cell pool that expand upon reencounter of their cognate antigen.
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Affiliation(s)
- Antje Heit
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | | | - Sarah Gerdts
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Britta Flach
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Miranda S Moore
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Jonathan A Perkins
- Department of Otolaryngology, University of Washington, Seattle, WA.,Seattle Children's Hospital Research Institute, Seattle, WA
| | - Harlan S Robins
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA.,Adaptive Biotechnologies Corporation, Seattle, WA
| | - Alan Aderem
- Center for Infectious Disease Research, Seattle, WA
| | - Paul Spearman
- Pediatric Infectious Diseases, Cincinnati Children's Hospital, Cincinnati, OH
| | | | - Stephen C De Rosa
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA.,Department of Laboratory Medicine, University of Washington, Seattle, WA
| | - M Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA.,Department of Laboratory Medicine, University of Washington, Seattle, WA.,Department of Medicine, University of Washington, Seattle, WA.,Department of Global Health, University of Washington, Seattle, WA
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Patel T, Cunningham A, Holland M, Daley J, Lazo S, Hodi FS, Severgnini M. Development of an 8-color antibody panel for functional phenotyping of human CD8+ cytotoxic T cells from peripheral blood mononuclear cells. Cytotechnology 2017; 70:1-11. [PMID: 28551826 DOI: 10.1007/s10616-017-0106-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/09/2017] [Indexed: 10/19/2022] Open
Abstract
The study of CD8 positive cells in peripheral blood has become an essential part of research in the field of cancer immunotherapies, vaccine development, inflammation, autoimmune disease, etc. In this study, an 8-color flow cytometry panel, containing lineage and functional markers, was developed for the identification of CD8+ cytotoxic T cells in previously cryopreserved peripheral blood mononuclear cells from healthy human donors. By studying functional markers in naïve and CD3/CD28 activated T cells we demonstrate that the panel is capable of detecting protein markers corresponding to different T cell activation statuses. Data generated by flow cytometry were corroborated by different antibody based assay technologies to detect soluble cytokines. Our findings suggest that there is an inter donor variability in both baseline and activation responses. We have also successfully developed an antibody panel for flow cytometry that could be used to study cytotoxic function of CD8 T cells in clinical immunology research areas.
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Affiliation(s)
- Tara Patel
- Department of Medical Oncology, Center for Immuno-Oncology, Dana-Farber Cancer Institute, 450 Brookline, Ave Jimmy Fund 406, Boston, MA, 02215, USA
| | - Amy Cunningham
- Department of Medical Oncology, Center for Immuno-Oncology, Dana-Farber Cancer Institute, 450 Brookline, Ave Jimmy Fund 406, Boston, MA, 02215, USA
| | - Martha Holland
- Department of Medical Oncology, Center for Immuno-Oncology, Dana-Farber Cancer Institute, 450 Brookline, Ave Jimmy Fund 406, Boston, MA, 02215, USA
| | - John Daley
- Department of Medical Oncology/Hematologic Neoplasia, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Suzan Lazo
- Department of Medical Oncology/Hematologic Neoplasia, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - F Stephen Hodi
- Department of Medical Oncology, Center for Immuno-Oncology, Dana-Farber Cancer Institute, 450 Brookline, Ave Jimmy Fund 406, Boston, MA, 02215, USA
| | - Mariano Severgnini
- Department of Medical Oncology, Center for Immuno-Oncology, Dana-Farber Cancer Institute, 450 Brookline, Ave Jimmy Fund 406, Boston, MA, 02215, USA.
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Janes HE, Cohen KW, Frahm N, De Rosa SC, Sanchez B, Hural J, Magaret CA, Karuna S, Bentley C, Gottardo R, Finak G, Grove D, Shen M, Graham BS, Koup RA, Mulligan MJ, Koblin B, Buchbinder SP, Keefer MC, Adams E, Anude C, Corey L, Sobieszczyk M, Hammer SM, Gilbert PB, McElrath MJ. Higher T-Cell Responses Induced by DNA/rAd5 HIV-1 Preventive Vaccine Are Associated With Lower HIV-1 Infection Risk in an Efficacy Trial. J Infect Dis 2017; 215:1376-1385. [PMID: 28199679 PMCID: PMC5853653 DOI: 10.1093/infdis/jix086] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Accepted: 02/08/2017] [Indexed: 12/15/2022] Open
Abstract
Background It is important to identify vaccine-induced immune responses that predict the preventative efficacy of a human immunodeficiency virus (HIV)-1 vaccine. We assessed T-cell response markers as correlates of risk in the HIV Vaccine Trials Network (HVTN) 505 HIV-1 vaccine efficacy trial. Methods 2504 participants were randomized to DNA/rAd5 vaccine or placebo, administered at weeks 0, 4, 8, and 24. Peripheral blood mononuclear cells were obtained at week 26 from all 25 primary endpoint vaccine cases and 125 matched vaccine controls, and stimulated with vaccine-insert-matched peptides. Primary variables were total HIV-1-specific CD4+ T-cell magnitude and Env-specific CD4+ polyfunctionality. Four secondary variables were also assessed. Immune responses were evaluated as predictors of HIV-1 infection among vaccinees using Cox proportional hazards models. Machine learning analyses identified immune response combinations best predicting HIV-1 infection. Results We observed an unexpectedly strong inverse correlation between Env-specific CD8+ immune response magnitude and HIV-1 infection risk (hazard ratio [HR] = 0.18 per SD increment; P = .04) and between Env-specific CD8+ polyfunctionality and infection risk (HR = 0.34 per SD increment; P < .01). Conclusions Further research is needed to determine if these immune responses are predictors of vaccine efficacy or markers of natural resistance to HIV-1 infection.
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Affiliation(s)
- Holly E Janes
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Kristen W Cohen
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Nicole Frahm
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Stephen C De Rosa
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Brittany Sanchez
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - John Hural
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Craig A Magaret
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Shelly Karuna
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Carter Bentley
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Raphael Gottardo
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Greg Finak
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Douglas Grove
- The Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Mingchao Shen
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Barney S Graham
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
| | - Richard A Koup
- Vaccine Research Center, National Institute of Allergy and Infectious Diseases, Bethesda, Maryland
| | | | - Beryl Koblin
- Laboratory of Infectious Disease Prevention, New York Blood Center, New York
| | - Susan P Buchbinder
- Departments of Medicine and Epidemiology/Biostatistics, University of California San Francisco
| | - Michael C Keefer
- University of Rochester Medical Center, School of Medicine and Dentistry, New York
| | - Elizabeth Adams
- Division of AIDS, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, and
| | - Chuka Anude
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, Maryland; and
| | - Lawrence Corey
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - Magdalena Sobieszczyk
- Division of Infectious Diseases, Columbia University College of Physicians and Surgeons, New York
| | - Scott M Hammer
- Division of Infectious Diseases, Columbia University College of Physicians and Surgeons, New York
| | - Peter B Gilbert
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
| | - M Juliana McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, and
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90
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Pavlova S, D'Alessio F, Houard S, Remarque EJ, Stockhofe N, Engelhardt OG. Workshop report: Immunoassay standardisation for "universal" influenza vaccines. Influenza Other Respir Viruses 2017; 11:194-201. [PMID: 28146323 PMCID: PMC5410724 DOI: 10.1111/irv.12445] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/17/2017] [Indexed: 12/31/2022] Open
Abstract
The development of broadly reactive influenza vaccines raises the need to identify the most appropriate immunoassays that can be used for the evaluation of so-called universal influenza vaccines and to explore a path towards the standardisation of such assays. More than fifty experts from the global influenza vaccine research and development field met to initiate such discussion at a workshop co-organised by the EDUFLUVAC consortium, a European Union funded project coordinated by the European Vaccine Initiative, and the National Institutes of Health/National Institute of Allergy and Infectious Diseases, USA. The workshop audience agreed that it was not possible to establish a single immunoassay for "universal" influenza vaccines because the current approaches differ in the vaccines' nature and immunogenicity properties. Therefore, different scientific rationales for the immunoassay selection are required. To avoid dilution of efforts, the choice of the primary evaluation criteria (eg serological assays or T-cell assays) should drive the effort of harmonisation. However, at an early phase of clinical development, more efforts on exploratory assessments should be undertaken to better define the immune profile in response to immunisation with new vaccines. The workshop concluded that each laboratory should aim towards validation of the appropriate immunoassays used during the entire process of vaccine development from antigen discovery up to establishment of correlates of protection, including the different steps of quality control (eg potency assays), animal studies and human clinical development. Standardisation of the immunoassays is the ultimate goal, and there is a long way to go.
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Affiliation(s)
- Sophia Pavlova
- European Vaccine Initiative, UniversitätsKlinikum Heidelberg, Heidelberg, Germany
| | - Flavia D'Alessio
- European Vaccine Initiative, UniversitätsKlinikum Heidelberg, Heidelberg, Germany
| | - Sophie Houard
- European Vaccine Initiative, UniversitätsKlinikum Heidelberg, Heidelberg, Germany
| | | | - Norbert Stockhofe
- Wageningen Bioveterinary Research/Wageningen University & Re-search, Lelystad, The Netherlands
| | - Othmar G Engelhardt
- National Institute for Biological Standards and Control, Medicines and Healthcare products Regulatory Agency, South Mimms, Potters Bar, Hertfordshire, UK
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91
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van Doorn E, Pleguezuelos O, Liu H, Fernandez A, Bannister R, Stoloff G, Oftung F, Norley S, Huckriede A, Frijlink HW, Hak E. Evaluation of the immunogenicity and safety of different doses and formulations of a broad spectrum influenza vaccine (FLU-v) developed by SEEK: study protocol for a single-center, randomized, double-blind and placebo-controlled clinical phase IIb trial. BMC Infect Dis 2017; 17:241. [PMID: 28376743 PMCID: PMC5379643 DOI: 10.1186/s12879-017-2341-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 03/24/2017] [Indexed: 02/05/2023] Open
Abstract
Background Current influenza vaccines, based on antibodies against surface antigens, are unable to provide protection against newly emerging virus strains which differ from the vaccine strains. Therefore the population has to be re-vaccinated annually. It is thus important to develop vaccines which induce protective immunity to a broad spectrum of influenza viruses. This trial is designed to evaluate the immunogenicity and safety of FLU-v, a vaccine composed of four synthetic peptides with conserved epitopes from influenza A and B strains expected to elicit both cell mediated immunity (CMI) and humoral immunity providing protection against a broad spectrum of influenza viruses. Methods In a single-center, randomized, double-blind and placebo-controlled phase IIb trial, 222 healthy volunteers aged 18–60 years will be randomized (2:2:1:1) to receive two injections of a suspension of 500 μg FLU-v in saline (arm 1), one dose of emulsified 500 μg FLU-v in Montanide ISA-51 and water for injection (WFI) followed by one saline dose (arm 2), two saline doses (arm 3), or one dose of Montanide ISA-51 and WFI emulsion followed by one saline dose (arm 4). All injections will be given subcutaneously. Primary endpoints are safety and FLU-v induced CMI, evaluated by cytokine production by antigen specific T cell populations (flow-cytometry and ELISA). Secondary outcomes are measurements of antibody responses (ELISA and multiplex), whereas exploratory outcomes include clinical efficacy and additional CMI assays (ELISpot) to show cross-reactivity. Discussion Broadly protective influenza vaccines able to provide protection against multiple strains of influenza are urgently needed. FLU-v is a promising vaccine which has shown to trigger the cell-mediated immune response. The dosages and formulations tested in this current trial are also estimated to induce antibody response. Therefore, both cellular and humoral immune responses will be evaluated. Trial registration EudraCT number 2015–001932-38; retrospectively registered clinicaltrials.gov NCT02962908 (November 7th 2016).
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Affiliation(s)
- Eva van Doorn
- University of Groningen, Unit of PharmacoTherapy- Epidemiology & -Economics, Antonius Deusinglaan, 9713 AV, Groningen, The Netherlands.
| | | | - Heng Liu
- University of Groningen, Unit of PharmacoTherapy- Epidemiology & -Economics, Antonius Deusinglaan, 9713 AV, Groningen, The Netherlands
| | - Ana Fernandez
- SEEK, Central Point, 45 Beech Street, London, EC2Y 8AD, UK
| | | | | | - Fredrik Oftung
- Norwegian Institute of Public Health, Department of Infectious Disease Immunology, Oslo, Norway
| | | | - Anke Huckriede
- University Medical Center Groningen, Medical Microbiology, Groningen, The Netherlands
| | - Henderik W Frijlink
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, The Netherlands
| | - Eelko Hak
- University of Groningen, Unit of PharmacoTherapy- Epidemiology & -Economics, Antonius Deusinglaan, 9713 AV, Groningen, The Netherlands
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92
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van Doorn E, Liu H, Ben-Yedidia T, Hassin S, Visontai I, Norley S, Frijlink HW, Hak E. Evaluating the immunogenicity and safety of a BiondVax-developed universal influenza vaccine (Multimeric-001) either as a standalone vaccine or as a primer to H5N1 influenza vaccine: Phase IIb study protocol. Medicine (Baltimore) 2017; 96:e6339. [PMID: 28296763 PMCID: PMC5369918 DOI: 10.1097/md.0000000000006339] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 02/21/2017] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION Influenza is a major respiratory viral infection of humans with high mortality and morbidity rates and profound economic impact. Although influenza vaccines are generally updated yearly to match the viruses expected in the coming season, genetic mutation and reassortment can result in unexpected novel strains. Therefore, it is important to develop universal vaccines inducing protective immunity to such strains before they appear. This clinical trial is designed to evaluate the safety and immunogenicity of Multimeric-001 (M-001), which contains conserved epitopes of influenza A and B. M-001 is able to induce both humoral and cellular immunity and provides broad strain coverage. METHODS In a multicenter, randomized, double-blind, and controlled phase IIb trial, 222 healthy volunteers aged 18 to 60 years will be randomized into 3 groups (1:1:1) to receive either 2 intramuscular injections of 0.5 mg M-001 (arm 1), 1.0 mg M-001 (arm 2), or saline (arm 3-placebo), before receiving an investigational (whole virus, inactivated, aluminum phosphate gel [AlPO4]-adjuvanted) prepandemic influenza vaccine (H5N1). Primary outcomes are safety and cellular immune responses (cell-mediated immunity [CMI]) induced by M-001, evaluated by multiparametric flow cytometry of intracellular cytokines. The secondary outcome is the serum hemagglutination inhibition (HAI) titer toward the H5N1 vaccine strain. Additionally, exploratory outcomes include evaluation of CMI by quantitative reverse transcription polymerase chain reaction of cytokine mRNA, HAI titers toward H5-drifted strains, serum single radial hemolysis titers toward the H5N1 study vaccine, and the association between CMI markers and antibody response. DISCUSSION There is a need for influenza vaccines that give the population a broader protection against multiple strains of influenza virus. M-001 might be such vaccine which will be tested in this current trial as a standalone vaccine and as a pandemic primer. Both cellular and humoral immune responses will be evaluated. TRIAL REGISTRATION EudraCT number: 2015-001979-46.
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Affiliation(s)
- Eva van Doorn
- Unit of Pharmacotherapy, -Epidemiology and -Economics, University of Groningen, Groningen, The Netherlands
| | - Heng Liu
- Unit of Pharmacotherapy, -Epidemiology and -Economics, University of Groningen, Groningen, The Netherlands
| | | | | | - Ildiko Visontai
- Division of Virology, National Center for Epidemiology, Budapest, Hungary
| | | | - Henderik W. Frijlink
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, The Netherlands
| | - Eelko Hak
- Unit of Pharmacotherapy, -Epidemiology and -Economics, University of Groningen, Groningen, The Netherlands
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Lovelace ES, Maurice NJ, Miller HW, Slichter CK, Harrington R, Magaret A, Prlic M, De Rosa S, Polyak SJ. Silymarin suppresses basal and stimulus-induced activation, exhaustion, differentiation, and inflammatory markers in primary human immune cells. PLoS One 2017; 12:e0171139. [PMID: 28158203 PMCID: PMC5291532 DOI: 10.1371/journal.pone.0171139] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 01/15/2017] [Indexed: 12/13/2022] Open
Abstract
Silymarin (SM), and its flavonolignan components, alter cellular metabolism and inhibit inflammatory status in human liver and T cell lines. In this study, we hypothesized that SM suppresses both acute and chronic immune activation (CIA), including in the context of HIV infection. SM treatment suppressed the expression of T cell activation and exhaustion markers on CD4+ and CD8+ T cells from chronically-infected, HIV-positive subjects. SM also showed a trend towards modifying CD4+ T cell memory subsets from HIV+ subjects. In the HIV-negative setting, SM treatment showed trends towards suppressing pro-inflammatory cytokines from non-activated and pathogen-associated molecular pattern (PAMP)-activated primary human monocytes, and non-activated and cytokine- and T cell receptor (TCR)-activated mucosal-associated invariant T (MAIT) cells. The data suggest that SM elicits broad anti-inflammatory and immunoregulatory activity in primary human immune cells. By using novel compounds to alter cellular inflammatory status, it may be possible to regulate inflammation in both non-disease and disease states.
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Affiliation(s)
- Erica S. Lovelace
- Department of Laboratory Medicine, University of Washington, Seattle, WA, United States of America
| | - Nicholas J. Maurice
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
| | - Hannah W. Miller
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
| | - Chloe K. Slichter
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
- Department of Global Health, University of Washington, Seattle, WA, United States of America
| | - Robert Harrington
- Division of Allergy and Infectious Disease, University of Washington, Seattle, WA, United States of America
| | - Amalia Magaret
- Department of Laboratory Medicine, University of Washington, Seattle, WA, United States of America
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
- Department of Biostatistics, University of Washington, Seattle, WA, United States of America
| | - Martin Prlic
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
- Department of Global Health, University of Washington, Seattle, WA, United States of America
| | - Stephen De Rosa
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, United States of America
| | - Stephen J. Polyak
- Department of Laboratory Medicine, University of Washington, Seattle, WA, United States of America
- Department of Global Health, University of Washington, Seattle, WA, United States of America
- Department of Microbiology, University of Washington, Seattle, WA, United States of America
- * E-mail:
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94
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Huang Y, Zhang L, Janes H, Frahm N, Isaacs A, Kim JH, Montefiori D, McElrath MJ, Tomaras GD, Gilbert PB. Predictors of durable immune responses six months after the last vaccination in preventive HIV vaccine trials. Vaccine 2017; 35:1184-1193. [PMID: 28131393 DOI: 10.1016/j.vaccine.2016.09.053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/04/2016] [Accepted: 09/21/2016] [Indexed: 11/29/2022]
Abstract
BACKGROUND The evaluation of durable immune responses is important in HIV vaccine research and development. The efficiency of such evaluation could be increased by incorporating predictors of the responses in the statistical analysis. In this paper, we investigated whether and how baseline demographic variables and immune responses measured two weeks after vaccination predicted durable immune responses measured six months later. METHODS We included data from seven preventive HIV vaccine regimens evaluated in three clinical trials: a Phase 1 study of four DNA, NYVAC and/or AIDSVAX vaccine regimens (HVTN096), a Phase 2 study of two DNA and/or MVA vaccine regimens (HVTN205), and a Phase 3 study of a single ALVAC/AIDSVAX regimen (RV144). Regularized random forests and linear regression models were used to identify and evaluate predictors of the positivity and magnitude of durable immune responses. RESULTS We analyzed 201 vaccine recipients with data from 10 to 127 immune response biomarkers, and 3-5 demographic variables. The best prediction of participants' durable response positivity based on two-week responses rendered up to close-to-perfect accuracy; the best prediction of participants' durable response magnitude rendered correlation coefficients between the observed and predicted responses ranging up to 0.91. Though prediction performances differed among biomarkers, durable immune responses were best predicted by the two-week response level of the same biomarker. Adding demographic information and two-week response levels of different biomarkers provided little or no improvement in the predictions. CONCLUSIONS For some biomarkers and for the vaccines we studied, two-week post-vaccination responses can well predict durable responses six months later. Therefore, if immune response durability is only assessed in a sub-sample of vaccine recipients, statistical analyses of durable responses will have increased efficiency by incorporating two-week response data. Further research is needed to generalize the findings to other vaccine regimens and biomarkers. Clinicaltrials.gov identifiers: NCT01799954, NCT00820846, NCT00223080.
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Affiliation(s)
- Yunda Huang
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA; Public Health Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA; Department of Global Health, University of Washington, 1510 San Juan Rd., Seattle, WA 98195, USA.
| | - Lily Zhang
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA; Public Health Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA.
| | - Holly Janes
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA; Public Health Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA; Department of Biostatistics, University of Washington, 1705 NE Pacific St., Seattle, WA 98195, USA.
| | - Nicole Frahm
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA; Department of Global Health, University of Washington, 1510 San Juan Rd., Seattle, WA 98195, USA.
| | - Abby Isaacs
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA; Public Health Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA.
| | - Jerome H Kim
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, 503 Robert Grant Ave., Silver Spring, MD 20910, USA; International Vaccine Institute, 1 Gwanak-ro, Gwanak-gu, Seoul, South Korea.
| | - David Montefiori
- Duke Human Vaccine Institute, Genome Court, MSRB II, Durham, NC 27710, USA.
| | - M Julie McElrath
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA; Department of Global Health, University of Washington, 1510 San Juan Rd., Seattle, WA 98195, USA; Department of Laboratory Medicine, University of Washington, 1959 NE Pacific St., Seattle, WA 98195, USA; Department of Medicine, University of Washington, 1959 NE Pacific St., Seattle, WA 98195, USA.
| | - Georgia D Tomaras
- Duke Human Vaccine Institute, Genome Court, MSRB II, Durham, NC 27710, USA.
| | - Peter B Gilbert
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA; Public Health Sciences Division, Fred Hutchinson Cancer Research Center, 1100 Fairview Ave. N., Seattle, WA 98109, USA; Department of Biostatistics, University of Washington, 1705 NE Pacific St., Seattle, WA 98195, USA.
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95
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Nemes E, Burgers WA, Riou C, Andersen-Nissen E, Ferrari G, Gray CM, Scriba T. Teaching advanced flow cytometry in Africa: 10 years of lessons learned. Cytometry A 2016; 89:971-974. [PMID: 27870536 DOI: 10.1002/cyto.a.23015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 10/03/2016] [Accepted: 10/08/2016] [Indexed: 01/24/2023]
Affiliation(s)
- Elisa Nemes
- South African Tuberculosis Vaccine Initiative (SATVI), University of Cape Town, South Africa.,Division of Immunology, Department of Pathology and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa
| | - Wendy A Burgers
- Division of Medical Virology, Department of Pathology and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa
| | - Catherine Riou
- Division of Medical Virology, Department of Pathology and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa
| | - Erica Andersen-Nissen
- Cape Town HVTN Immunology Laboratory, Hutchinson Centre Research Institute of South Africa, Cape Town, South Africa
| | - Guido Ferrari
- Department of Surgery, Duke University, Durham, North Carolina
| | - Clive M Gray
- Division of Immunology, Department of Pathology and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa
| | - Thomas Scriba
- South African Tuberculosis Vaccine Initiative (SATVI), University of Cape Town, South Africa.,Division of Immunology, Department of Pathology and Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa
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The Safety and Immunogenicity of an Interleukin-12-Enhanced Multiantigen DNA Vaccine Delivered by Electroporation for the Treatment of HIV-1 Infection. J Acquir Immune Defic Syndr 2016; 71:163-71. [PMID: 26761518 DOI: 10.1097/qai.0000000000000830] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Therapeutic vaccination is being studied in eradication and "functional cure" strategies for HIV-1. The Profectus Biosciences multiantigen (MAG) HIV-1 DNA vaccine encodes HIV-1 Gag/Pol, Nef/Tat/Vif, and Envelope, and interleukin-12 (IL-12) and is delivered by electroporation combined with intramuscular injection (IM-EP). METHODS Sixty-two HIV-1-infected patients on antiretroviral therapy (plasma HIV-1 RNA levels ≤ 200 copies/mL; CD4(+) T-cell counts ≥ 500 cells/mm(3)) were randomly allocated 5:1 to receive vaccine or placebo. At weeks 0, 4, and 12, 4 consecutive cohorts received 3000 μg HIV MAG pDNA with 0, 50, 250, or 1000 μg of IL-12 pDNA by IM-EP. A fifth cohort received HIV MAG pDNA and 1000 μg of IL-12 pDNA by standard IM injection. RESULTS CD4(+) T cells expressing IL-2 in response to Gag and Pol and interferon-γ responses to Gag, Pol, and Env increased from baseline to week 14 in the low-dose (50-μg) IL-12 arm vs. placebo (P < 0.05; intracellular cytokine staining). The total increase in the IL-2-expressing CD4 T-cell responses to any antigen was also higher in the low-dose IL-12 arm vs. placebo (P = 0.04). Cytokine responses by CD8 T cells to HIV antigens were not increased in any vaccine arm relative to placebo. CONCLUSIONS HIV-1 MAG/low-dose IL-12 DNA vaccine delivered by IM-EP augmented CD4(+) but not CD8(+) T-cell responses to multiple HIV-1 antigens.
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97
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Subtype C gp140 Vaccine Boosts Immune Responses Primed by the South African AIDS Vaccine Initiative DNA-C2 and MVA-C HIV Vaccines after More than a 2-Year Gap. CLINICAL AND VACCINE IMMUNOLOGY : CVI 2016; 23:496-506. [PMID: 27098021 PMCID: PMC4895009 DOI: 10.1128/cvi.00717-15] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 04/14/2016] [Indexed: 01/13/2023]
Abstract
A phase I safety and immunogenicity study investigated South African AIDS Vaccine Initiative (SAAVI) HIV-1 subtype C (HIV-1C) DNA vaccine encoding Gag-RT-Tat-Nef and gp150, boosted with modified vaccinia Ankara (MVA) expressing matched antigens. Following the finding of partial protective efficacy in the RV144 HIV vaccine efficacy trial, a protein boost with HIV-1 subtype C V2-deleted gp140 with MF59 was added to the regimen. A total of 48 participants (12 U.S. participants and 36 Republic of South Africa [RSA] participants) were randomized to receive 3 intramuscular (i.m.) doses of SAAVI DNA-C2 of 4 mg (months 0, 1, and 2) and 2 i.m. doses of SAAVI MVA-C of 1.45 × 109 PFU (months 4 and 5) (n = 40) or of a placebo (n = 8). Approximately 2 years after vaccination, 27 participants were rerandomized to receive gp140/MF59 at 100 μg or placebo, as 2 i.m. injections, 3 months apart. The vaccine regimen was safe and well tolerated. After the DNA-MVA regimen, CD4+ T-cell and CD8+ T-cell responses occurred in 74% and 32% of the participants, respectively. The protein boost increased CD4+ T-cell responses to 87% of the subjects. All participants developed tier 1 HIV-1C neutralizing antibody responses as well as durable Env binding antibodies that recognized linear V3 and C5 peptides. The HIV-1 subtype C DNA-MVA vaccine regimen showed promising cellular immunogenicity. Boosting with gp140/MF59 enhanced levels of binding and neutralizing antibodies as well as CD4+ T-cell responses to HIV-1 envelope. (This study has been registered at ClinicalTrials.gov under registration no. NCT00574600 and NCT01423825.)
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Cosgrove CA, Lacey CJ, Cope AV, Bartolf A, Morris G, Yan C, Baden S, Cole T, Carter D, Brodnicki E, Shen X, Joseph S, DeRosa SC, Peng L, Yu X, Ferrari G, Seaman M, Montefiori DC, Frahm N, Tomaras GD, Stöhr W, McCormack S, Shattock RJ. Comparative Immunogenicity of HIV-1 gp140 Vaccine Delivered by Parenteral, and Mucosal Routes in Female Volunteers; MUCOVAC2, A Randomized Two Centre Study. PLoS One 2016; 11:e0152038. [PMID: 27159166 PMCID: PMC4861263 DOI: 10.1371/journal.pone.0152038] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 03/07/2016] [Indexed: 12/16/2022] Open
Abstract
Background Defining optimal routes for induction of mucosal immunity represents an important research priority for the HIV-1 vaccine field. In particular, it remains unclear whether mucosal routes of immunization can improve mucosal immune responses. Methods In this randomized two center phase I clinical trial we evaluated the systemic and mucosal immune response to a candidate HIV-1 Clade C CN54gp140 envelope glycoprotein vaccine administered by intramuscular (IM), intranasal (IN) and intravaginal (IVAG) routes of administration in HIV negative female volunteers. IM immunizations were co-administered with Glucopyranosyl Lipid Adjuvant (GLA), IN immunizations with 0.5% chitosan and IVAG immunizations were administered in an aqueous gel. Results Three IM immunizations of CN54 gp140 at either 20 or 100 μg elicited significantly greater systemic and mucosal antibodies than either IN or IVAG immunizations. Following additional intramuscular boosting we observed an anamnestic antibody response in nasally primed subjects. Modest neutralizing responses were detected against closely matched tier 1 clade C virus in the IM groups. Interestingly, the strongest CD4 T-cell responses were detected after IN and not IM immunization. Conclusions These data show that parenteral immunization elicits systemic and mucosal antibodies in women. Interestingly IN immunization was an effective prime for IM boost, while IVAG administration had no detectable impact on systemic or mucosal responses despite IM priming. Clinical Trials Registration EudraCT 2010-019103-27 and the UK Clinical Research Network (UKCRN) Number 11679
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Affiliation(s)
| | - Charles J. Lacey
- Hull York Medical School & Centre for Immunology and Infection, University of York, York, United Kingdom
| | - Alethea V. Cope
- Mucosal Infection & Immunity Group, Division of Infectious Diseases, Department of Medicine, Imperial College London, London, United Kingdom
| | - Angela Bartolf
- Centre for Infection, St George’s, University of London, London, United Kingdom
| | - Georgina Morris
- Hull York Medical School & Centre for Immunology and Infection, University of York, York, United Kingdom
| | - Celine Yan
- Mucosal Infection & Immunity Group, Division of Infectious Diseases, Department of Medicine, Imperial College London, London, United Kingdom
| | - Susan Baden
- Centre for Infection, St George’s, University of London, London, United Kingdom
| | - Tom Cole
- Mucosal Infection & Immunity Group, Division of Infectious Diseases, Department of Medicine, Imperial College London, London, United Kingdom
| | - Darrick Carter
- Infectious Disease Research Institute (IDRI), Seattle, WA, United States of America
| | - Elizabeth Brodnicki
- Medical Research Council, Clinical Trials Unit at UCL, University College London, London, United Kingdom
| | - Xiaoying Shen
- Duke Human Vaccine Institute, Duke University Medical Center, Durham, NC, United States of America
| | - Sarah Joseph
- Medical Research Council, Clinical Trials Unit at UCL, University College London, London, United Kingdom
| | - Stephen C. DeRosa
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Lili Peng
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Xuesong Yu
- Statistical Center for HIV/AIDS Research and Prevention, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Guido Ferrari
- Duke Human Vaccine Institute, Duke University Medical Center, Durham, NC, United States of America
- Department of Surgery, Duke University Medical Center, Durham, NC, United States of America
| | - Mike Seaman
- CAVD Neutralizing Antibody Laboratory, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States of America
| | - David C. Montefiori
- Duke Human Vaccine Institute, Duke University Medical Center, Durham, NC, United States of America
- Department of Surgery, Duke University Medical Center, Durham, NC, United States of America
| | - Nicole Frahm
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Georgia D. Tomaras
- Duke Human Vaccine Institute, Duke University Medical Center, Durham, NC, United States of America
- Department of Surgery, Duke University Medical Center, Durham, NC, United States of America
| | - Wolfgang Stöhr
- Medical Research Council, Clinical Trials Unit at UCL, University College London, London, United Kingdom
| | - Sheena McCormack
- Medical Research Council, Clinical Trials Unit at UCL, University College London, London, United Kingdom
| | - Robin J. Shattock
- Mucosal Infection & Immunity Group, Division of Infectious Diseases, Department of Medicine, Imperial College London, London, United Kingdom
- * E-mail:
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Leung TF, Liu APY, Lim FS, Thollot F, Oh HML, Lee BW, Rombo L, Tan NC, Rouzier R, Friel D, De Muynck B, De Simoni S, Suryakiran P, Hezareh M, Folschweiller N, Thomas F, Struyf F. Comparative immunogenicity and safety of human papillomavirus (HPV)-16/18 AS04-adjuvanted vaccine and HPV-6/11/16/18 vaccine administered according to 2- and 3-dose schedules in girls aged 9-14 years: Results to month 12 from a randomized trial. Hum Vaccin Immunother 2016; 11:1689-702. [PMID: 26062002 PMCID: PMC4514190 DOI: 10.1080/21645515.2015.1050570] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
This observer-blind study (clinicaltrials.gov NCT01462357) compared the immunogenicity and safety of 2 doses of the HPV-16/18 AS04-adjuvanted vaccine (HPV-16/18(2D)) vs. 2 or 3 doses of the HPV-6/11/16/18 vaccine (HPV-6/11/16/18(2D) and HPV-6/11/16/18(3D)) in healthy girls aged 9–14 y. Girls were randomized (1:1:1) to receive HPV-16/18(2D) at months (M) 0,6 (N = 359), HPV-6/11/16/18(2D) at M0,6 (N = 358) or HPV-6/11/16/18(3D) at M0,2,6 (N = 358). The primary objective was non-inferiority/superiority of HPV-16/18 antibodies by ELISA for HPV-16/18(2D) vs. HPV-6/11/16/18(2D) at M7 in the according-to-protocol immunogenicity cohort (ATP-I) and total vaccinated cohort, respectively. Secondary objectives included non-inferiority/superiority of HPV-16/18(2D) vs. HPV-6/11/16/18(3D) at M7, non-inferiority/superiority at M12, HPV-16/18 neutralizing antibodies, frequencies of T-cells/B-cells, reactogenicity and safety. Antibody responses at M7 for HPV-16/18(2D) were superior to those for HPV-6/11/16/18(2D) and HPV-6/11/16/18(3D) (lower limit of 95% confidence interval for geometric mean titer ratio (GMR) was >1): HPV-16/18(2D)/HPV-6/11/16/18(2D) GMRs were 1.69 [1.49–1.91] for anti-HPV-16 and 4.52 [3.97–5.13] for anti-HPV-18; HPV-16/18(2D)/HPV-6/11/16/18(3D) GMRs were 1.72 [1.54–1.93] for anti-HPV-16 and 3.22 [2.82–3.68] for anti-HPV-18; p = 0.0001 for all comparisons. Non-inferiority/superiority was also demonstrated at M12. Among initially seronegative girls in the ATP-I, neutralizing antibody titers were at least 1.8-fold higher for HPV-16/18(2D) vs. HPV-6/11/16/18(2D) and HPV-6/11/16/18(3D) at M7 and M12. Frequencies of HPV-16/18-specific T-cells and B-cells were in similar ranges between groups. Reactogenicity and safety were in line with the known profile of each vaccine. In conclusion, superior HPV-16/18 antibody responses were elicited by 2 doses of the HPV-16/18 AS04-adjuvanted vaccine compared with 2 or 3 doses of the HPV-6/11/16/18 vaccine in girls (9–14 years).
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Key Words
- 2D, 2-dose
- 3D, 3-dose
- AAHS, aluminum hydroxyphosphate sulfate
- ANOVA, analysis of variance
- AS04, Adjuvant System containing 50 µg 3-O-desacyl-4 ′-monophosphoryl lipid A (MPL) adsorbed on aluminum salt (500 µg Al3+)
- ATP-I, according-to-protocol immunogenicity cohort
- CI, confidence interval
- CMI, cell-mediated immunity
- ED50, effective dose producing 50% response
- ELISA, enzyme-linked immunosorbent assay
- ELISPOT, enzyme-linked immunosorbent spot assay
- EU, ELISA unit
- GMR, geometric mean titer ratio
- GMT, geometric mean antibody titer
- HPV, human papillomavirus
- HPV-16/18(2D), 2-dose schedule of the HPV-16/18 vaccine
- HPV-6/11/16/18(2D), 2-dose schedule of the HPV-6/11/16/18 vaccine
- HPV-6/11/16/18(3D), 3-dose schedule of the HPV-6/11/16/18 vaccine
- IFNγ, interferon
- IgG, immunoglobulin G
- M, month(s)
- PBMC, peripheral blood mononuclear cells
- PBNA, pseudovirion-based neutralisation assay
- SAE, serious adverse event
- TVC, total vaccinated cohort
- VLP, virus-like particle
- administration schedule
- female adolescents
- human papillomavirus (HPV) vaccines
- immunogenicity
- pIMD, potential immune-mediated disease
- safety
- y, year(s)
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Affiliation(s)
- Ting Fan Leung
- a Department of Paediatrics ; The Chinese University of Hong Kong ; Shatin , Hong Kong
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Lhomme E, Richert L, Moodie Z, Pasin C, Kalams SA, Morgan C, Self S, De Rosa SC, Thiébaut R. Early CD4+ T Cell Responses Are Associated with Subsequent CD8+ T Cell Responses to an rAd5-Based Prophylactic Prime-Boost HIV Vaccine Strategy. PLoS One 2016; 11:e0152952. [PMID: 27124598 PMCID: PMC4849671 DOI: 10.1371/journal.pone.0152952] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 03/18/2016] [Indexed: 12/24/2022] Open
Abstract
Introduction Initial evaluation of a candidate vaccine against HIV includes an assessment of the vaccine’s ability to generate immune responses. However, the dynamics of vaccine-induced immune responses are unclear. We hypothesized that the IFN-γ producing cytotoxic CD8+ (CD8+ IFN-γ+) T cell responses could be predicted by early IL-2 producing CD4+ (CD4+ IL-2+) helper T cell responses, and we evaluated this hypothesis using data from a phase I/II prophylactic HIV vaccine trial. The objective was to assess the dynamics and correlations between CD4+ IL-2+ T cell and CD8+ IFN-γ+ T cell responses after vaccination with a recombinant adenoviral serotype 5 (rAd5) HIV vaccine. Methods We analyzed data from the HVTN 068 HIV vaccine trial, which evaluated the immunogenicity of two different strategies for prime and boost vaccination (rAd5-rAd5 vaccine versus DNA-rAd5) in 66 healthy volunteers. Spearman correlations between immunogenicity markers across time-points were calculated. CD8+ IFN-γ+ T cell response in the rAd5-rAd5 arm was modeled as a function of CD4+ IL-2+ T cell response and time using mixed effects regression models. Results Moderate to high correlations (r = 0.48–0.76) were observed in the rAd5-rAd5 arm between the CD4+ IL-2+ T cell response at week 2 and later CD8+ IFN-γ+ T cell responses (weeks 2–52). Regression models confirmed this relationship with a significant association between the two markers: for a 1.0% increase in CD4+ IL-2+ T cells at week 2 post-prime, a 0.3% increase in CD8+ IFN-γ+ T cell responses across subsequent time points, including post-boost time points, was observed (p<0.01). Conclusion These results suggest an early and leading role of CD4+ T cells in the cellular response to the rAd5-rAd5 vaccine and in particular the stimulation of cytotoxic CD8+ T cell responses. These results could inform better timing of CD4+ T cell measurements in future clinical trials.
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Affiliation(s)
- Edouard Lhomme
- INSERM, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
- Université Bordeaux, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
- CHU de Bordeaux, Pôle de santé publique, Bordeaux, France
- INRIA SISTM, Talence, France
- Vaccine Research Institute (VRI), Créteil, France
| | - Laura Richert
- INSERM, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
- Université Bordeaux, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
- CHU de Bordeaux, Pôle de santé publique, Bordeaux, France
- INRIA SISTM, Talence, France
- Vaccine Research Institute (VRI), Créteil, France
| | - Zoe Moodie
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, 98109, United States of America
- HIV Vaccine Trials Network, Seattle, Washington, 98109, United States of America
| | - Chloé Pasin
- INSERM, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
- Université Bordeaux, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
- INRIA SISTM, Talence, France
| | - Spyros A. Kalams
- Infectious Diseases Unit, Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee, 37232, United States of America
| | - Cecilia Morgan
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, 98109, United States of America
- HIV Vaccine Trials Network, Seattle, Washington, 98109, United States of America
| | - Steve Self
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, 98109, United States of America
- HIV Vaccine Trials Network, Seattle, Washington, 98109, United States of America
| | - Stephen C. De Rosa
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, 98109, United States of America
- HIV Vaccine Trials Network, Seattle, Washington, 98109, United States of America
| | - Rodolphe Thiébaut
- INSERM, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
- Université Bordeaux, ISPED, Centre INSERM U897-Epidemiologie-Biostatistique, Bordeaux, France
- CHU de Bordeaux, Pôle de santé publique, Bordeaux, France
- INRIA SISTM, Talence, France
- Vaccine Research Institute (VRI), Créteil, France
- * E-mail:
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