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Julg B, Stephenson KE, Tomaka F, Walsh SR, Sabrina Tan C, Lavreys L, Sarnecki M, Ansel JL, Kanjilal DG, Jaegle K, Speidel T, Nkolola JP, Borducchi EN, Braams E, Pattacini L, Burgess E, Ilan S, Bartsch Y, Yanosick KE, Seaman MS, Stieh DJ, van Duijn J, Willems W, Robb ML, Michael NL, Walker BD, Pau MG, Schuitemaker H, Barouch DH. Immunogenicity of 2 therapeutic mosaic HIV-1 vaccine strategies in individuals with HIV-1 on antiretroviral therapy. NPJ Vaccines 2024; 9:89. [PMID: 38782902 PMCID: PMC11116546 DOI: 10.1038/s41541-024-00876-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 04/17/2024] [Indexed: 05/25/2024] Open
Abstract
Mosaic HIV-1 vaccines have been shown to elicit robust humoral and cellular immune responses in people living with HIV-1 (PLWH), that had started antiretroviral therapy (ART) during acute infection. We evaluated the safety and immunogenicity of 2 mosaic vaccine regimens in virologically suppressed individuals that had initiated ART during the chronic phase of infection, exemplifying the majority of PLWH. In this double-blind, placebo-controlled phase 1 trial (IPCAVD013/HTX1002) 25 ART-suppressed PLWH were randomized to receive Ad26.Mos4.HIV/MVA-Mosaic (Ad26/MVA) (n = 10) or Ad26.Mos4.HIV/Ad26.Mos4.HIV plus adjuvanted gp140 protein (Ad26/Ad26+gp140) (n = 9) or placebo (n = 6). Primary endpoints included safety and tolerability and secondary endpoints included HIV-specific binding and neutralizing antibody titers and HIV-specific T cell responses. Both vaccine regimens were well tolerated with pain/tenderness at the injection site and fatigue, myalgia/chills and headache as the most commonly reported solicited local and grade 3 systemic adverse events, respectively. In the Ad26/Ad26+gp140 group, Env-specific IFN-γ T cell responses showed a median 12-fold increase while responses to Gag and Pol increased 1.8 and 2.4-fold, respectively. The breadth of T cell responses to individual peptide subpools increased from 11.0 pre-vaccination to 26.0 in the Ad26/Ad26+gp140 group and from 10.0 to 14.5 in the Ad26/MVA group. Ad26/Ad26+gp140 vaccination increased binding antibody titers against vaccine-matched clade C Env 5.5-fold as well as augmented neutralizing antibody titers against Clade C pseudovirus by 7.2-fold. Both vaccine regimens were immunogenic, while the addition of the protein boost resulted in additional T cell and augmented binding and neutralizing antibody titers. These data suggest that the Ad26/Ad26+gp140 regimen should be tested further.
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Affiliation(s)
- Boris Julg
- Ragon Institute of Mass General, MIT and Harvard, Cambridge, MA, USA.
- Beth Israel Deaconess Medical Center, Boston, MA, USA.
| | - Kathryn E Stephenson
- Ragon Institute of Mass General, MIT and Harvard, Cambridge, MA, USA
- Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Frank Tomaka
- Janssen Research & Development, Titusville, NJ, USA
| | | | - C Sabrina Tan
- Beth Israel Deaconess Medical Center, Boston, MA, USA
- University of Iowa, Iowa City, IA, USA
| | | | | | | | | | - Kate Jaegle
- Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Tessa Speidel
- Beth Israel Deaconess Medical Center, Boston, MA, USA
| | | | | | - Esmee Braams
- Janssen Vaccines & Prevention B.V., Leiden, Netherlands
| | | | - Eleanor Burgess
- Ragon Institute of Mass General, MIT and Harvard, Cambridge, MA, USA
| | - Shlomi Ilan
- Ragon Institute of Mass General, MIT and Harvard, Cambridge, MA, USA
| | - Yannic Bartsch
- Ragon Institute of Mass General, MIT and Harvard, Cambridge, MA, USA
| | | | | | | | | | | | - Merlin L Robb
- U.S. 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
| | - Nelson L Michael
- U.S. Military HIV Research Program, Walter Reed Army Institute of Research, Silver Spring, MD, USA
| | - Bruce D Walker
- Ragon Institute of Mass General, MIT and Harvard, Cambridge, MA, USA
- Howard Hughes Medical Institute, Chevy Chase, MD, USA
- Institute for Medical Engineering and Sciences and Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | | | | | - Dan H Barouch
- Ragon Institute of Mass General, MIT and Harvard, Cambridge, MA, USA.
- Beth Israel Deaconess Medical Center, Boston, MA, USA.
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2
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Wettengel JM, Naka H, Dissen GA, Torgerson J, Pounder M, Mueller SF, Mueller E, Hagen P, Brandt M, Protzer U, Burwitz BJ. High-Throughput Screening for the Prevalence of Neutralizing Antibodies against Human Adenovirus Serotype 5. Vaccines (Basel) 2024; 12:155. [PMID: 38400138 PMCID: PMC10891882 DOI: 10.3390/vaccines12020155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024] Open
Abstract
Adenoviral vectors based on the human adenovirus species C serotype 5 (HAdV-C5) are commonly used for vector-based gene therapies and vaccines. In the preclinical stages of development, their safety and efficacy are often validated in suitable animal models. However, pre-existing neutralizing antibodies may severely influence study outcomes. Here, we generated a new HAdV-C5-based reporter vector and established a high-throughput screening assay for the multivalent detection of HAdV-C5-neutralizing antibodies in serum. We screened the sera of rhesus macaques at different primate centers, and of rabbits, horses, cats, and dogs, showing that HAdV-C5-neutralizing antibodies can be found in all species, albeit at different frequencies. Our results emphasize the need to prescreen model animals in HAdV-C5-based studies.
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Affiliation(s)
- Jochen M. Wettengel
- Division of Pathobiology and Immunology, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA; (J.M.W.)
- Institute of Virology, Technical University of Munich, 81675 Munich, Germany
- German Center for Infection Research, Munich Partner Site, 81675 Munich, Germany
| | - Hiroaki Naka
- Division of Genetics, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA;
| | - Gregory A. Dissen
- Molecular Virology Core, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA; (G.A.D.); (J.T.)
| | - Jeffrey Torgerson
- Molecular Virology Core, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA; (G.A.D.); (J.T.)
| | - Michelle Pounder
- Molecular Virology Core, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA; (G.A.D.); (J.T.)
| | | | | | - Philipp Hagen
- Institute of Virology, Technical University of Munich, 81675 Munich, Germany
| | - Micah Brandt
- Division of Pathobiology and Immunology, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA; (J.M.W.)
| | - Ulrike Protzer
- Institute of Virology, Technical University of Munich, 81675 Munich, Germany
- German Center for Infection Research, Munich Partner Site, 81675 Munich, Germany
| | - Benjamin J. Burwitz
- Division of Pathobiology and Immunology, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR 97006, USA; (J.M.W.)
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3
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Jia S, Zhang J, Wang X, Zhang Z, Wang B, Zhang J, Jiang H, Guo G, Wang Y, Wan J, Wang W, Hou L, Zhu F. Safety and Immunogenicity of Homologous Recombinant Adenovirus Type 5-Vectored COVID-19 Vaccine Booster Dose in Healthy Adults Aged 18-60 Years: a Single-Center, Open-Label Trial. Infect Dis Ther 2023; 12:2757-2769. [PMID: 38038866 PMCID: PMC10746682 DOI: 10.1007/s40121-023-00892-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 11/06/2023] [Indexed: 12/02/2023] Open
Abstract
INTRODUCTION The waning antibody levels several months after prime vaccination and the persistent epidemics of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) around the world have generated great interest in the evaluation of a booster dose. We aimed to assess the safety and immunogenicity of a homologous booster dose of the recombinant adenovirus type 5-vectored coronavirus disease 2019 (COVID-19) vaccine (Ad5-nCoV). METHODS In this trial, we recruited healthy adults aged 18-60 years who had received one dose of Ad5-nCoV vaccine (low, middle, or high dose) in the previous phase 1 trial approximately 6 months earlier, and then all participants received a booster dose of 5 × 1010 viral particles (low dose) intramuscularly. The primary outcome was the incidence of adverse reactions within 14 days after booster vaccination. The specific binding antibodies were measured by enzyme-linked immunosorbent assay and the neutralizing antibody responses were assessed with live SARS-CoV-2 and pseudovirus neutralization assay. The cellular immune responses were analyzed by enzyme-linked immunospot assay and intracellular cytokine staining. RESULTS From September 26 to 28, 2020, 108 volunteers were recruited and 89 eligible participants (52% male) were enrolled and received a booster dose of Ad5-nCoV vaccine: 28 (31%) had received a low prime dose, 30 (34%) a middle prime dose, and 31 (35%) a high prime dose in the previous phase 1 trial. All participants were included in the safety analysis and immunogenicity was assessed in 88 (99%) participants. Twenty-three (82%) participants in the low prime dose group, 23 (77%) participants in the middle prime dose group, and 26 (84%) participants in the high prime dose group reported at least one adverse reaction within the first 14 days post booster. Pain at the injection site and fatigue were the most common adverse reactions. Most adverse reactions were mild or moderate in all groups and no vaccine-related severe adverse event was noted within 12 months after booster vaccination. Neutralizing antibodies increased moderately at day 14 and peaked at 28 days post booster. T cell responses were also boosted at 14 days after vaccination. CONCLUSIONS A homologous booster of Ad5-nCoV vaccine is well tolerated and immunogenic in healthy adults aged 18-60 years who had received a priming dose of Ad5-nCoV 6 months previously. The neutralizing antibodies against SARS-CoV-2 peaked at day 28 and specific T cell responses were noted at day 14 after booster. Ad5-nCoV vaccine can be considered as a homologous booster 6 months after a priming dose. TRIAL REGISTRATION ClinicalTrials.gov, NCT04568811.
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Affiliation(s)
- Siyue Jia
- NHC Key Laboratory of Enteric Pathogenic Microbiology (Jiangsu Provincial Center for Disease Control and Prevention), Nanjing, China
| | | | - Xue Wang
- CanSino Biologics, Tianjin, China
| | - Zhe Zhang
- Beijing Institute of Biotechnology, Beijing, China
| | - Busen Wang
- Beijing Institute of Biotechnology, Beijing, China
| | - Jun Zhang
- Beijing Institute of Biotechnology, Beijing, China
| | - Hudachuan Jiang
- NHC Key Laboratory of Enteric Pathogenic Microbiology (Jiangsu Provincial Center for Disease Control and Prevention), Nanjing, China
| | - Ge Guo
- CanSino Biologics, Tianjin, China
| | | | | | - Wenjuan Wang
- NHC Key Laboratory of Enteric Pathogenic Microbiology (Jiangsu Provincial Center for Disease Control and Prevention), Nanjing, China.
| | - Lihua Hou
- Beijing Institute of Biotechnology, Beijing, China.
| | - Fengcai Zhu
- NHC Key Laboratory of Enteric Pathogenic Microbiology (Jiangsu Provincial Center for Disease Control and Prevention), Nanjing, China.
- Center for Global Health, CGH, Nanjing Medical University, Nanjing, China.
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Francisco AG, Reyes JCB, Tabios IKB, Cruz CJG, Ang MAC, Heralde FM, Lacuna ARG, de Paz-Silava SLM. Seroprevalence of human adenovirus type 5 neutralizing antibodies in the Philippines. PLoS One 2023; 18:e0293046. [PMID: 38039314 PMCID: PMC10691707 DOI: 10.1371/journal.pone.0293046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 11/16/2023] [Indexed: 12/03/2023] Open
Abstract
Human adenovirus (HAdV), particularly the HAdV type 5 (HAdV-5), has been extensively utilized in the development of vector vaccines due to its high immunogenicity, good safety profile, and ease of propagation. However, one of the main challenges in its use is the presence of pre-existing immunity among vaccine recipients. Pre-existing neutralizing antibodies (NAbs) can prevent the uptake of HAdV-5 vectors and reduce vaccine efficacy. Hence, this study investigated the seroprevalence of NAbs against HAdV-5 in urban and rural regions of the Philippines. Luciferase-based neutralization assay was performed on 391 plasma/serum samples. Out of these samples, 346 or 88.5% were positive for HAdV-5 NAbs, and the majority of them (56.8%) had high titers against the virus. Among the regions included in this study, Bicol (Region V) had the highest seroprevalence rate (94.1%). Our findings show that a significant number of adults in the Philippines have pre-existing immunity against HAdV-5. This supports the recommendation that vaccination programs in the country should consider implementing vaccination techniques, such as a prime-boost regimen or addition of booster doses, to address the potential negative effects of pre-existing HAdV-5 immunity in the efficacy of adenoviral vector-based vaccines.
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Affiliation(s)
- Abialbon G. Francisco
- Department of Medical Microbiology, College of Public Health, University of the Philippines Manila, Manila, Philippines
| | - John Carlo B. Reyes
- Department of Laboratories, Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
| | - Ian Kim B. Tabios
- Institute of Biology, College of Science, University of the Philippines Diliman, Quezon City, Philippines
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines Manila, Manila, Philippines
| | - Criselda Jean G. Cruz
- Department of Dermatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- International Center for Wound Repair and Regeneration, National Cheng Kung University, Tainan, Taiwan
- College of Medicine, University of the Philippines Manila, Manila, Philippines
| | - Mark Angelo C. Ang
- Department of Laboratories, Philippine General Hospital, University of the Philippines Manila, Manila, Philippines
- Department of Pathology, College of Medicine, University of the Philippines Manila, Manila, Philippines
| | - Francisco M. Heralde
- Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines Manila, Manila, Philippines
| | - Azita Racquel G. Lacuna
- Department of Medical Microbiology, College of Public Health, University of the Philippines Manila, Manila, Philippines
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5
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Feng JL, Wang WJ, Jin PF, Zheng H, Jin LR, Xia X, Zhang XY, Li ZP, Li JX, Zhu FC. Comparison of antibody persistency through one year between one-dose and two-dose regimens of Ad5-nCoV vaccine for COVID-19. Hum Vaccin Immunother 2023; 19:2230760. [PMID: 37428653 DOI: 10.1080/21645515.2023.2230760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 06/01/2023] [Accepted: 06/13/2023] [Indexed: 07/12/2023] Open
Abstract
This post-hoc analysis compared the receptor-binding domain (RBD)-specific and pseudovirus neutralizing antibodies against the wild-type SARS-CoV-2 strain elicited by one or two doses (56-d interval) of Ad5-nCoV vaccine regimen (NCT04341389 and NCT04566770). Both trials had low-dose and high-dose groups. Propensity score matching was used to adjust the baseline between one- and two-dose regimens. To predict the decrease in antibody titers 1 y after vaccination, half-lives of RBD-binding antibodies and pseudovirus neutralizing antibodies were computed. We obtained 34 and 29 pairs of participants in the low- and high-dose groups based on the propensity score matching. The two-dose regimen of Ad5-nCoV increased the peaking level of neutralizing antibodies compared to the one-dose regimen at day 28, but the responses of the neutralizing antibodies were not consistent with those of the RBD antibodies. Half-lives of the RBD-binding antibodies in the two-dose Ad5-nCoV regimen (202-209 days) were longer than those in the one-dose regimen (136-137 d); half-lives of the pseudovirus neutralizing antibody in the one-dose Ad5-nCoV regimen (177 d) were longer than those in the two-dose regimen (116-131 d). The predicted positive rates of RBD-binding antibodies in the one-dose regimen (34.1%-38.3%) would be lower than those in the two-dose Ad5-nCoV regimen (67.0%-84.0%), while the positive rates of pseudovirus neutralizing antibodies in the one-dose regimen (65.4%-66.7%) would be higher than those in the two-dose regimen (48.3%-58.0%). The two-dose Ad5-nCoV regimen with a 56-d interval had no effect on the persistence of neutralizing antibodies but slowed decay trend of RBD-binding antibodies.
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Affiliation(s)
- Jia-Lu Feng
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, P.R China
| | - Wen-Juan Wang
- National Health Commission (NHC) Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R China
| | - Peng-Fei Jin
- National Health Commission (NHC) Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R China
| | - Hui Zheng
- School of Public Health, Southeast University, Nanjing, P.R China
| | - Lai-Run Jin
- School of Public Health, Southeast University, Nanjing, P.R China
| | - Xin Xia
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, P.R China
| | - Xiao-Yin Zhang
- School of Public Health, Southeast University, Nanjing, P.R China
| | - Zhuo-Pei Li
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, P.R China
| | - Jing-Xin Li
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, P.R China
- National Health Commission (NHC) Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R China
- School of Public Health, Southeast University, Nanjing, P.R China
- Institute of Global Public Health and Emergency Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, P.R China
| | - Feng-Cai Zhu
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, P.R China
- National Health Commission (NHC) Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu, P.R China
- School of Public Health, Southeast University, Nanjing, P.R China
- Institute of Global Public Health and Emergency Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu, P.R China
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Tang R, Zheng H, Wang BS, Gou JB, Guo XL, Chen XQ, Chen Y, Wu SP, Zhong J, Pan HX, Zhu JH, Xu XY, Shi FJ, Li ZP, Liu JX, Zhang XY, Cui LB, Song ZZ, Hou LH, Zhu FC, Li JX. Safety and immunogenicity of aerosolised Ad5-nCoV, intramuscular Ad5-nCoV, or inactivated COVID-19 vaccine CoronaVac given as the second booster following three doses of CoronaVac: a multicentre, open-label, phase 4, randomised trial. THE LANCET. RESPIRATORY MEDICINE 2023; 11:613-623. [PMID: 36898400 PMCID: PMC9991083 DOI: 10.1016/s2213-2600(23)00049-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/27/2023] [Accepted: 01/28/2023] [Indexed: 03/09/2023]
Abstract
BACKGROUND Aerosolised Ad5-nCoV is the first approved mucosal respiratory COVID-19 vaccine to be used as a booster after the primary immunisation with COVID-19 vaccines. This study aimed to evaluate the safety and immunogenicity of aerosolised Ad5-nCoV, intramuscular Ad5-nCoV, or inactivated COVID-19 vaccine CoronaVac given as the second booster. METHODS This is an open-label, parallel-controlled, phase 4 randomised trial enrolling healthy adult participants (≥18 years) who had completed a two-dose primary immunisation and a booster immunisation with inactivated COVID-19 vaccines (CoronaVac only) at least 6 months before, in Lianshui and Donghai counties, Jiangsu Province, China. We recruited eligible participants from previous trials in China (NCT04892459, NCT04952727, and NCT05043259) as cohort 1 (with the serum before and after the first booster dose available), and from eligible volunteers in Lianshui and Donghai counties, Jiangsu Province, as cohort 2. Participants were randomly assigned at a ratio of 1:1:1, using a web-based interactive response randomisation system, to receive the fourth dose (second booster) of aerosolised Ad5-nCoV (0·1 mL of 1·0 × 1011 viral particles per mL), intramuscular Ad5-nCoV (0·5 mL of 1·0 × 1011 viral particles per mL), or inactivated COVID-19 vaccine CoronaVac (0·5 mL), respectively. The co-primary outcomes were safety and immunogenicity of geometric mean titres (GMTs) of serum neutralising antibodies against prototype live SARS-CoV-2 virus 28 days after the vaccination, assessed on a per-protocol basis. Non-inferiority or superiority was achieved when the lower limit of the 95% CI of the GMT ratio (heterologous group vs homologous group) exceeded 0·67 or 1·0, respectively. This study was registered with ClinicalTrials.gov, NCT05303584 and is ongoing. FINDINGS Between April 23 and May 23, 2022, from 367 volunteers screened for eligibility, 356 participants met eligibility criteria and received a dose of aerosolised Ad5-nCoV (n=117), intramuscular Ad5-nCoV (n=120), or CoronaVac (n=119). Within 28 days of booster vaccination, participants in the intramuscular Ad5-nCoV group reported a significantly higher frequency of adverse reactions than those in the aerosolised Ad5-nCoV and intramuscular CoronaVac groups (30% vs 9% and 14%, respectively; p<0·0001). No serious adverse events related to the vaccination were reported. The heterologous boosting with aerosolised Ad5-nCoV triggered a GMT of 672·4 (95% CI 539·7-837·7) and intramuscular Ad5-nCoV triggered a serum neutralising antibody GMT of 582·6 (505·0-672·2) 28 days after the booster dose, both of which were significantly higher than the GMT in the CoronaVac group (58·5 [48·0-71·4]; p<0·0001). INTERPRETATION A heterologous fourth dose (second booster) with either aerosolised Ad5-nCoV or intramuscular Ad5-nCoV was safe and highly immunogenic in healthy adults who had been immunised with three doses of CoronaVac. FUNDING National Natural Science Foundation of China, Jiangsu Provincial Science Fund for Distinguished Young Scholars, and Jiangsu Provincial Key Project of Science and Technology Plan.
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Affiliation(s)
- Rong Tang
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu Province, China
| | - Hui Zheng
- School of Public Health, Southeast University, Nanjing, Jiangsu Province, China
| | - Bu-Sen Wang
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China
| | - Jin-Bo Gou
- Tianjin CanSino Biotechnology, Tianjin, China
| | - Xi-Ling Guo
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu Province, China
| | - Xiao-Qin Chen
- Donghai County Center for Disease Control and Prevention, Donghai, Jiangsu Province, China
| | - Yin Chen
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu Province, China
| | - Shi-Po Wu
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China
| | - Jin Zhong
- Donghai County Center for Disease Control and Prevention, Donghai, Jiangsu Province, China
| | - Hong-Xing Pan
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu Province, China
| | - Jia-Hong Zhu
- Lianshui County Center for Disease Control and Prevention, Lianshui, Jiangsu Province, China
| | - Xiao-Yu Xu
- Vazyme Biotech, Nanjing, Jiangsu Province, China
| | - Feng-Juan Shi
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu Province, China
| | - Zhuo-Pei Li
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu Province, China
| | - Jing-Xian Liu
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu Province, China
| | - Xiao-Yin Zhang
- School of Public Health, Southeast University, Nanjing, Jiangsu Province, China
| | - Lun-Biao Cui
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu Province, China
| | - Zhi-Zhou Song
- Lianshui County Center for Disease Control and Prevention, Lianshui, Jiangsu Province, China
| | - Li-Hua Hou
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China.
| | - Feng-Cai Zhu
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu Province, China; School of Public Health, Southeast University, Nanjing, Jiangsu Province, China; School of Public Health, Nanjing Medical University, Nanjing, Jiangsu Province, China; Institute of Global Public Health and Emergency Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, China.
| | - Jing-Xin Li
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, Jiangsu Province, China; School of Public Health, Southeast University, Nanjing, Jiangsu Province, China; School of Public Health, Nanjing Medical University, Nanjing, Jiangsu Province, China; Institute of Global Public Health and Emergency Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu Province, China.
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7
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Beaty S, Collins N, Karasavvas N, Kuschner R, Hang J, Adhikari A, Maljkovic Berry I, Fung C, Walls S, Betancourt E, Mendy J, Lock M, Gierman E, Bennett S, Shabram P, Warfield K. A Phase 1 Two-Arm, Randomized, Double-Blind, Active-Controlled Study of Live, Oral Plasmid-Derived Adenovirus Type 4 and Type 7 Vaccines in Seronegative Adults. Vaccines (Basel) 2023; 11:1091. [PMID: 37376480 DOI: 10.3390/vaccines11061091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/08/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
PXVX0047 is an investigational vaccine developed for active immunization to prevent febrile acute respiratory disease (ARD) caused by adenovirus serotypes 4 (Ad4) and 7 (Ad7). PXVX0047 consists of a modernized, plasmid-derived vaccine that was generated using a virus isolated from Wyeth Ad4 and Ad7 vaccine tablets. A phase 1 two-arm, randomized, double-blind, active-controlled study was conducted to evaluate the safety profile and immunogenicity of the investigational adenovirus vaccines. The two components of PXVX0047 were administered orally together in a single dose to 11 subjects. For comparison, three additional subjects received the Ad4/Ad7 vaccine that is currently in use by the US military. The results of this study show that the tolerability and immunogenicity of the PXVX0047 Ad7 component are comparable with that of the control Ad4/Ad7 vaccine; however, the immunogenicity of the PXVX0047 Ad4 component was lower than expected. Clinical trial number NCT03160339.
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Affiliation(s)
- Shannon Beaty
- Emergent BioSolutions Inc., Gaithersburg, MD 20879, USA
| | - Natalie Collins
- Walter Reed Army Institute of Research, Bethesda, MD 20814, USA
| | | | - Robert Kuschner
- Walter Reed Army Institute of Research, Bethesda, MD 20814, USA
| | - Jun Hang
- Walter Reed Army Institute of Research, Bethesda, MD 20814, USA
| | - Anima Adhikari
- Walter Reed Army Institute of Research, Bethesda, MD 20814, USA
| | | | - Christian Fung
- Walter Reed Army Institute of Research, Bethesda, MD 20814, USA
| | - Shannon Walls
- Walter Reed Army Institute of Research, Bethesda, MD 20814, USA
| | | | - Jason Mendy
- Emergent BioSolutions Inc., Gaithersburg, MD 20879, USA
| | - Michael Lock
- Emergent BioSolutions Inc., Gaithersburg, MD 20879, USA
| | - Emma Gierman
- Emergent BioSolutions Inc., Gaithersburg, MD 20879, USA
| | - Sean Bennett
- Emergent BioSolutions Inc., Gaithersburg, MD 20879, USA
| | - Paul Shabram
- Emergent BioSolutions Inc., Gaithersburg, MD 20879, USA
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8
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Kuang L, Wang C, Chen H, Li Y, Liang Z, Xu T, Guo M, Zhu B. Seroprevalence of neutralizing antibodies to human mastadenovirus serotypes 3 and 7 in healthy children from guangdong province. Heliyon 2023; 9:e16986. [PMID: 37346335 PMCID: PMC10279900 DOI: 10.1016/j.heliyon.2023.e16986] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 04/28/2023] [Accepted: 06/02/2023] [Indexed: 06/23/2023] Open
Abstract
Severe adenovirus pneumonia is becoming more common in children infected with human mastadenovirus (HAdV)-3 and HAdV-7 than in those infected with other types of adenoviruses. Recently, there has been a trend toward an increasing prevalence of pneumonia caused by HAdV-7, an important viral pathogen in Pediatric Intensive Care Unit infections. Children infected with HAdV-7 have more serious symptoms of acute respiratory infections and other complications than those infected with HAdV-3. No specific anti-adenovirus drugs or vaccines are available for treatment or prevention. Therefore, we investigated the seroprevalence and titer levels of neutralizing antibodies (NAbs) against HAdV-3 and HAdV-7 in healthy children in Guangdong Province. We found that the seropositivity rates and antibody titers for HAdV-3 NAb were higher than those for HAdV-7 NAb. In children between 6 and 12 months of age, the seropositivity rates and titers were significantly low against HAdV-3 and HAdV-7. The HAdV-7-positive rate was significantly higher in the HAdV-3-positive samples than in the HAdV-3-negative samples. The HAdV-7 NAbs carried by the 0-6-month age group were dominated by low titers. These results reveal a low level of herd immunity against HAdV-3 and HAdV-7 in children, clarifying the importance of monitoring these two highly virulent adenoviruses, developing prophylactic vaccines, and predicting potential outbreaks.
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Affiliation(s)
- Lu Kuang
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Changbing Wang
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Haiyang Chen
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Yinghua Li
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Zhuofu Liang
- Clinical Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Tiantian Xu
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Min Guo
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
| | - Bing Zhu
- Center Laboratory, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, 510120 Guangzhou, China
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9
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Chen C, Liang J, Hu H, Li X, Wang L, Wang Z. Research progress in methods for detecting neutralizing antibodies against SARS-CoV-2. Anal Biochem 2023:115199. [PMID: 37257735 DOI: 10.1016/j.ab.2023.115199] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/13/2023] [Accepted: 05/27/2023] [Indexed: 06/02/2023]
Abstract
The emergence of SARS-CoV-2 has seriously affected the lives of people worldwide. Clarifying the attenuation rule of SARS-CoV-2 neutralizing antibody (NAb) in vivo is the key to prevent reinfection and recurrence of virus. Currently, the commonly used methods for detecting NAb include virus neutralization tests, pseudovirus neutralization assays, lateral flow immunochromatography and enzyme-linked immunosorbent assays. The detection of NAb not only can be used to evaluate the level of immunity after vaccination or infection but also can provide important theoretical support for virus reinfection, recurrence and vaccine iteration. In this research, the related technologies of SARS-CoV-2 NAb detection were reviewed, aiming to provide better research ideas for SARS-CoV-2 epidemic prevention and control.
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Affiliation(s)
- Chunxia Chen
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, Henan University, Kaifeng, 475004, China
| | - Jiahui Liang
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, Henan University, Kaifeng, 475004, China
| | - Hangzhan Hu
- Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, Henan University, Kaifeng, 475004, China; Heze Municipal Hospital, Heze, 274000, China
| | - Xiaoquan Li
- Heze Municipal Hospital, Heze, 274000, China
| | - Li Wang
- Department of Clinical Laboratory, The First Affiliated Hospital of Henan University, Kaifeng, 475004, China.
| | - Zhizeng Wang
- Center of Smart Laboratory and Molecular Medicine, School of Medicine, Chongqing University, Chongqing, 400044, China; Joint National Laboratory for Antibody Drug Engineering, Clinical Laboratory of the First Affiliated Hospital, Henan University, Kaifeng, 475004, China.
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10
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Li W, Chen Y, Feng Y, Li J, Kang X, Zhang S, Li Y, Zhao Z, Yang W, Zhao L, Wang H, Jiang T. Generation and Characterization of a Replication-Competent Human Adenovirus Type 55 Encoding EGFP. Viruses 2023; 15:v15051192. [PMID: 37243276 DOI: 10.3390/v15051192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Human adenovirus 55 (HAdV-55) has recently caused outbreaks of acute respiratory disease (ARD), posing a significant public threat to civilians and military trainees. Efforts to develop antiviral inhibitors and quantify neutralizing antibodies require an experimental system to rapidly monitor viral infections, which can be achieved through the use of a plasmid that can produce an infectious virus. Here, we used a bacteria-mediated recombination approach to construct a full-length infectious cDNA clone, pAd55-FL, containing the whole genome of HadV-55. Then, the green fluorescent protein expression cassette was assembled into pAd55-FL to replace the E3 region to obtain a recombinant plasmid of pAd55-dE3-EGFP. The rescued recombinant virus rAdv55-dE3-EGFP is genetically stable and replicates similarly to the wild-type virus in cell culture. The virus rAdv55-dE3-EGFP can be used to quantify neutralizing antibody activity in sera samples, producing results in concordance with the cytopathic effect (CPE)-based microneutralization assay. Using an rAdv55-dE3-EGFP infection of A549 cells, we showed that the assay could be used for antiviral screening. Our findings suggest that the rAdv55-dE3-EGFP-based high-throughput assay provides a reliable tool for rapid neutralization testing and antiviral screening for HAdV-55.
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Affiliation(s)
- Wei Li
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Yuehong Chen
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Ye Feng
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Jing Li
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Xiaoping Kang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Sen Zhang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Yuchang Li
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Zhiyan Zhao
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
| | - Wenguang Yang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Lu Zhao
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
| | - Huiyao Wang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
- School of Public Health, Mudanjiang Medical University, Mudanjiang 157011, China
| | - Tao Jiang
- State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing 100071, China
- School of Basic Medical Sciences, Anhui Medical University, Hefei 230032, China
- School of Public Health, Mudanjiang Medical University, Mudanjiang 157011, China
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11
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Wang B, Li J, Wu S, Wang Y, Chen Y, Zhai Y, Song X, Zhao Z, Zhang Z, Zhang J, Yu R, Hou L, Chen W. A seroepidemiological survey of adenovirus type 7 circulation among healthy adults in China and in Sierra Leone, West Africa. Front Public Health 2023; 11:1095343. [PMID: 36815162 PMCID: PMC9940762 DOI: 10.3389/fpubh.2023.1095343] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/18/2023] [Indexed: 02/09/2023] Open
Abstract
Adenovirus type 7 (HAdV7) is one of the most pathogenic human adenoviruses (HAdVs) and can cause severe illness and even death, particularly in people with weakened immune systems. Many countries worldwide have experienced epidemics of this highly contagious pathogen, including China and Sierra Leone; however, studies describing the seroprevalence of anti-HAdV7 neutralizing antibodies (nAbs) are still lacking. Herein, we established an efficient neutralization assay based on a recombinant luciferase-expressing HAdV7 virus (HAd7-Luc) to monitor historical HAdV7 infections and predict outbreak distributions. Among the 2,350 serum samples collected from eight sites in China and Sierra Leone in this cross-sectional serological survey, the overall proportion of anti-HAdV7-seropositive individuals was nearly 60%, with higher seroprevalence rates in Sierra Leone than in China. Regionally, HAdV7 nAb titers were higher in China than in Sierra Leone and showed a geographic variation across different regions. Regardless of the location, the seropositive rate of HAdV7 nAb was lower than that of HAdV5 nAb, as was the nAb titer. The prevalence rates of antibodies against HAdV7 and HAdV5 were both related to age but not to sex. In addition, serologic cross-reactions were rarely observed among people infected with HAdV7 and HAdV5. These results indicate a humoral immune response acquired through endemic HAdV7 infection and enrich the understanding of not only the epidemiological prevention and control of HAdV7 but also the clinical application of HAdV7-based vaccines or gene therapy tools.
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Affiliation(s)
- Busen Wang
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Jianhua Li
- Zhejiang Provincial Center of Disease Control and Prevention, Hangzhou, China
| | - Shipo Wu
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Yudong Wang
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Yi Chen
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Yanfang Zhai
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Xiaohong Song
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Zhenghao Zhao
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Zhe Zhang
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Jinlong Zhang
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Rui Yu
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China
| | - Lihua Hou
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China,*Correspondence: Lihua Hou ✉
| | - Wei Chen
- Vaccine and Antibody Engineering Laboratory, Beijing Institute of Biotechnology, Beijing, China,Wei Chen ✉
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12
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Li ZP, Shi YF, Hou LH, Jin PF, Ma SH, Pan HX, Zhang JL, Shan YM, Huang HT, Wu SP, Du P, Wang X, Wang LL, Wang RJ, Wang Y, Wang XW, Zhu FC, Li JX. Batch-to-batch consistency trial of an adenovirus type-5 vector-based COVID-19 vaccine in adults aged 18 years and above. Expert Rev Vaccines 2022; 21:1843-1849. [PMID: 36048417 DOI: 10.1080/14760584.2022.2119133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND The demonstration of batch-to-batch consistency is indispensable for quality control of vaccines. METHODS We conducted a randomized, double-blind, parallel-controlled trial to evaluate the immunogenicity consistency of a single shot of Ad5-nCoV in healthy adults who had not previously received any COVID-19 vaccine. All eligible participants were randomly assigned equally to receive one of the three consecutive batches of Ad5-nCoV (5 × 1010 viral particles/vial, 0.5 mL). The primary endpoint was geometric mean titers (GMTs) of serum SARS-CoV-2 receptor-binding domain (RBD)-specific IgG on day 28 post-vaccination. RESULTS One thousand fifty participants were enrolled, with 350 (33%) participants per group. On day 28 post-vaccination, GMTs in three groups were 78.3 binding antibody units (BAU)/mL (95% CI 70.3-87.3), 82.9 BAU/mL (73.9-92.9), and 78.8 BAU/mL (70.2-88.4), respectively. The two-sided 95% CIs for the GMT ratios between each pair of batches were all between 0.67 and 1.5. The highest incidence of solicited adverse reactions within 7 days post-vaccination was reported by batch 3 recipients (23.1% versus 15.1% in batch 1 recipients and 14.6% in bath 2 recipients; p = 0.0039). None of the serious adverse events were related to vaccination. CONCLUSIONS Immunogenicity consistency between consecutive batches of Ad5-nCoV was well established in adults. CLINICAL TRIAL REGISTRATION This trial was registered with ClinicalTrials.gov (NCT05313646).
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Affiliation(s)
- Zhuo-Pei Li
- School of Public Health, Nanjing Medical University, Nanjing, P.R. China
| | - Yun-Feng Shi
- NHC Key Laboratory of Enteric Pathogenic Microbiology (Jiangsu Provincial Center for Disease Control and Prevention), Nanjing, P.R. China
| | - Li-Hua Hou
- Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, P.R. China
| | - Peng-Fei Jin
- NHC Key Laboratory of Enteric Pathogenic Microbiology (Jiangsu Provincial Center for Disease Control and Prevention), Nanjing, P.R. China
| | - Shi-Hua Ma
- Guanyun County Center for Disease Control and Prevention, Guanyun, P.R. China
| | - Hong-Xing Pan
- NHC Key Laboratory of Enteric Pathogenic Microbiology (Jiangsu Provincial Center for Disease Control and Prevention), Nanjing, P.R. China
| | - Jin-Long Zhang
- Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, P.R. China
| | - Yong-Mei Shan
- Guanyun County Center for Disease Control and Prevention, Guanyun, P.R. China
| | | | - Shi-Po Wu
- Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, P.R. China
| | - Pan Du
- Vazyme Biotech Co. Ltd, Nanjing, P.R. China.,Basic Medical Science School, Zhengzhou University, Zhengzhou, P.R. China
| | - Xue Wang
- CanSino Biologics Inc, Tianjin, P.R. China
| | - Li-Li Wang
- Guanyun County Center for Disease Control and Prevention, Guanyun, P.R. China
| | | | - Ying Wang
- CanSino Biologics Inc, Tianjin, P.R. China
| | - Xue-Wen Wang
- Shanghai Canming Medical Technology Co Ltd, Shanghai, P.R. China
| | - Feng-Cai Zhu
- School of Public Health, Nanjing Medical University, Nanjing, P.R. China.,NHC Key Laboratory of Enteric Pathogenic Microbiology (Jiangsu Provincial Center for Disease Control and Prevention), Nanjing, P.R. China.,Institute of Global Public Health and Emergency Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Jing-Xin Li
- School of Public Health, Nanjing Medical University, Nanjing, P.R. China.,NHC Key Laboratory of Enteric Pathogenic Microbiology (Jiangsu Provincial Center for Disease Control and Prevention), Nanjing, P.R. China.,Institute of Global Public Health and Emergency Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
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13
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Khan S, Salisch NC, Gil AI, Boedhoe S, Boer KFD, Serroyen J, Schuitemaker H, Zahn RC. Sequential use of Ad26-based vaccine regimens in NHP to induce immunity against different disease targets. NPJ Vaccines 2022; 7:146. [PMID: 36379957 PMCID: PMC9664441 DOI: 10.1038/s41541-022-00567-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 10/21/2022] [Indexed: 11/16/2022] Open
Abstract
The adenovirus (Ad)26 serotype–based vector vaccine Ad26.COV2.S has been used in millions of subjects for the prevention of COVID-19, but potentially elicits persistent anti-vector immunity. We investigated if vaccine-elicited immunity to Ad26 vector–based vaccines significantly influences antigen-specific immune responses induced by a subsequent vaccination with Ad26 vector–based vaccine regimens against different disease targets in non-human primates. A homologous Ad26 vector–based vaccination regimen or heterologous regimens (Ad26/Ad35 or Ad26/Modified Vaccinia Ankara [MVA]) induced target pathogen–specific immunity in animals, but also persistent neutralizing antibodies and T-cell responses against the vectors. However, subsequent vaccination (interval, 26–57 weeks) with homologous and heterologous Ad26 vector–based vaccine regimens encoding different target pathogen immunogens did not reveal consistent differences in humoral or cellular immune responses against the target pathogen, as compared to responses in naïve animals. These results support the sequential use of Ad26 vector–based vaccine regimens targeting different diseases.
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14
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Li JX, Wu SP, Guo XL, Tang R, Huang BY, Chen XQ, Chen Y, Hou LH, Liu JX, Zhong J, Pan HX, Shi FJ, Xu XY, Li ZP, Zhang XY, Cui LB, Tan WJ, Chen W, Zhu FC. Safety and immunogenicity of heterologous boost immunisation with an orally administered aerosolised Ad5-nCoV after two-dose priming with an inactivated SARS-CoV-2 vaccine in Chinese adults: a randomised, open-label, single-centre trial. THE LANCET RESPIRATORY MEDICINE 2022; 10:739-748. [PMID: 35605625 PMCID: PMC9122540 DOI: 10.1016/s2213-2600(22)00087-x] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/24/2022] [Accepted: 02/24/2022] [Indexed: 11/15/2022]
Abstract
Background Due to waning immunity and protection against infection with SARS-CoV-2, a third dose of a homologous or heterologous COVID-19 vaccine has been proposed by health agencies for individuals who were previously primed with two doses of an inactivated COVID-19 vaccine. Methods We did a randomised, open-label, controlled trial to evaluate the safety and immunogenicity of heterologous boost immunisation with an orally administered aerosolised adenovirus type-5 vector-based COVID-19 vaccine (Ad5-nCoV) in Chinese adults (≥18 years old) who had previously received two doses of an inactivated SARS-CoV-2 vaccine—Sinovac CoronaVac. Eligible participants were randomly assigned (1:1:1) to receive a heterologous booster vaccination with a low dose (1·0 × 1011 viral particles per mL; 0·1 mL; low dose group), or a high dose (1·0 × 1011 viral particles per mL; 0·2 mL; high dose group) aerosolised Ad5-nCoV, or a homologous intramuscular vaccination with CoronaVac (0·5 mL). Only laboratory staff were masked to group assignment. The primary endpoint for safety was the incidence of adverse reactions within 14 days after the booster dose. The primary endpoint for immunogenicity was the geometric mean titres (GMTs) of serum neutralising antibodies (NAbs) against live SARS-CoV-2 virus 14 days after the booster dose. This study was registered with ClinicalTrials.gov, NCT05043259. Findings Between Sept 14 and 16, 2021, 420 participants were enrolled: 140 (33%) participants per group. Adverse reactions were reported by 26 (19%) participants in the low dose group and 33 (24%) in the high dose group within 14 days after the booster vaccination, significantly less than the 54 (39%) participants in the CoronaVac group (p<0·0001). The low dose group had a serum NAb GMT of 744·4 (95% CI 520·1–1065·6) and the high dose group had a GMT of 714·1 (479·4–1063·7) 14 days after booster dose, significantly higher than the GMT in the CoronaVac group (78·5 [60·5–101·7]; p<0·0001). Interpretation We found that a heterologous booster vaccine with an orally administered aerosolised Ad5-nCoV is safe and highly immunogenic in adults who have previously received two doses of CoronaVac as the primary series vaccination. Funding National Natural Science Foundation of China and Jiangsu Provincial Key Research and Development Program.
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Affiliation(s)
- Jing-Xin Li
- National Health Commission (NHC) Key laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China; School of Public Health, Nanjing Medical University, Nanjing, China; Institute of Global Public Health and Emergency Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Shi-Po Wu
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China
| | - Xi-Ling Guo
- National Health Commission (NHC) Key laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Rong Tang
- National Health Commission (NHC) Key laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Bao-Ying Huang
- NHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiao-Qin Chen
- Donghai County Center for Disease Control and Prevention, Donghai, China
| | - Yin Chen
- National Health Commission (NHC) Key laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Li-Hua Hou
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China
| | - Jing-Xian Liu
- National Health Commission (NHC) Key laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Jin Zhong
- Donghai County Center for Disease Control and Prevention, Donghai, China
| | - Hong-Xing Pan
- National Health Commission (NHC) Key laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Feng-Juan Shi
- National Health Commission (NHC) Key laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | | | - Zhuo-Pei Li
- School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xiao-Yin Zhang
- School of Public Health, Southeast University, Nanjing, China
| | - Lun-Biao Cui
- National Health Commission (NHC) Key laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Wen-Jie Tan
- NHC Key Laboratory of Biosafety, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wei Chen
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China.
| | - Feng-Cai Zhu
- National Health Commission (NHC) Key laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China; School of Public Health, Nanjing Medical University, Nanjing, China; Institute of Global Public Health and Emergency Pharmacy, China Pharmaceutical University, Nanjing, China; School of Public Health, Southeast University, Nanjing, China.
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15
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Dienst EGT, Kremer EJ. Adenovirus receptors on antigen-presenting cells of the skin. Biol Cell 2022; 114:297-308. [PMID: 35906865 DOI: 10.1111/boc.202200043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/21/2022] [Accepted: 07/26/2022] [Indexed: 12/01/2022]
Abstract
Skin, the largest human organ, is part of the first line of physical and immunological defense against many pathogens. Understanding how skin antigen-presenting cells (APCs) respond to viruses or virus-based vaccines is crucial to develop antiviral pharmaceutics, and efficient and safe vaccines. Here, we discuss the way resident and recruited skin APCs engage adenoviruses and the impact on innate immune responses. This article is protected by copyright. All rights reserved.
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Affiliation(s)
| | - Eric J Kremer
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, CNRS, Montpellier, France
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16
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Le Gars M, Sadoff J, Struyf F, Heerwegh D, Truyers C, Hendriks J, Gray G, Grinsztejn B, Goepfert PA, Schuitemaker H, Douoguih M. Impact of preexisting anti-Ad26 humoral immunity on immunogenicity of the Ad26.COV2.S COVID-19 vaccine. J Infect Dis 2022; 226:979-982. [PMID: 35429381 PMCID: PMC9047246 DOI: 10.1093/infdis/jiac142] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 04/12/2022] [Indexed: 11/12/2022] Open
Abstract
Abstract
This secondary analysis of the phase 3 ENSEMBLE trial (NCT04505722) assessed the impact of preexisting humoral immunity to adenovirus type 26 (Ad26) on the immunogenicity of Ad26.COV2.S-elicited SARS-CoV-2–specific antibody levels in 380 participants in Brazil, South Africa, and the United States. Among those vaccinated in Brazil and South Africa, 31% and 66%, respectively, had prevaccination serum-neutralizing activity against Ad26, with little preexisting immunity detected in the United States. Vaccine recipients in each country had similar post-vaccination spike-binding antibody levels, indicating that baseline immunity to Ad26 has no clear impact on vaccine-induced immune responses.
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Affiliation(s)
- Mathieu Le Gars
- Janssen Vaccines and Prevention, 2333 Leiden, The Netherlands
| | - Jerald Sadoff
- Janssen Vaccines and Prevention, 2333 Leiden, The Netherlands
| | - Frank Struyf
- Janssen Research and Development, 2340 Beerse, Belgium
| | - Dirk Heerwegh
- Janssen Research and Development, 2340 Beerse, Belgium
| | - Carla Truyers
- Janssen Research and Development, 2340 Beerse, Belgium
| | - Jenny Hendriks
- Janssen Vaccines and Prevention, 2333 Leiden, The Netherlands
| | - Glenda Gray
- South African Research Council, Cape Town, 7501, South Africa
| | - Beatriz Grinsztejn
- Evandro Chagas National Institute of Infectious Diseases-Fiocruz, Rio de Janeiro, 21040-360, Brazil
| | - Paul A. Goepfert
- Department of Medicine, University of Alabama, Birmingham, 35294, United States
| | | | - Macaya Douoguih
- Janssen Vaccines and Prevention, 2333 Leiden, The Netherlands
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17
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Human AdV-20-42-42, a Promising Novel Adenoviral Vector for Gene Therapy and Vaccine Product Development. J Virol 2021; 95:e0038721. [PMID: 34469243 PMCID: PMC8549523 DOI: 10.1128/jvi.00387-21] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Preexisting immune responses toward adenoviral vectors limit the use of a vector based on particular serotypes and its clinical applicability for gene therapy and/or vaccination. Therefore, there is a significant interest in vectorizing novel adenoviral types that have low seroprevalence in the human population. Here, we describe the discovery and vectorization of a chimeric human adenovirus, which we call HAdV-20-42-42. Full-genome sequencing revealed that this virus is closely related to human serotype 42, except for the penton base, which is derived from serotype 20. The HAdV-20-42-42 vector could be propagated stably to high titers on existing E1-complementing packaging cell lines. Receptor-binding studies revealed that the vector utilized both CAR and CD46 as receptors for cell entry. Furthermore, the HAdV-20-42-42 vector was potent in transducing human and murine cardiovascular cells and tissues, irrespective of the presence of blood coagulation factor X. In vivo characterizations demonstrate that when delivered intravenously (i.v.) in mice, HAdV-20-42-42 mainly targeted the lungs, liver, and spleen and triggered robust inflammatory immune responses. Finally, we demonstrate that potent T-cell responses against vector-delivered antigens could be induced upon intramuscular vaccination in mice. In summary, from the data obtained we conclude that HAdV-20-42-42 provides a valuable addition to the portfolio of adenoviral vectors available to develop efficacious products in the fields of gene therapy and vaccination. IMPORTANCE Adenoviral vectors are under investigation for a broad range of therapeutic indications in diverse fields, such as oncology and gene therapy, as well as for vaccination both for human and veterinary use. A wealth of data shows that preexisting immune responses may limit the use of a vector. Particularly in the current climate of global pandemic, there is a need to expand the toolbox with novel adenoviral vectors for vaccine development. Our data demonstrate that we have successfully vectorized a novel adenovirus type candidate with low seroprevalence. The cell transduction data and antigen-specific immune responses induced in vivo demonstrate that this vector is highly promising for the development of gene therapy and vaccine products.
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Zhu F, Jin P, Zhu T, Wang W, Ye H, Pan H, Hou L, Li J, Wang X, Wu S, Wang Y, Gou J, Huang H, Wu H, Wang X, Chen W. Safety and Immunogenicity of a Recombinant Adenovirus Type-5-Vectored Coronavirus Disease 2019 (COVID-19) Vaccine With a Homologous Prime-Boost Regimen in Healthy Participants Aged ≥6 Years: A Randomized, Double-Blind, Placebo-Controlled, Phase 2b Trial. Clin Infect Dis 2021; 75:e783-e791. [PMID: 34551104 PMCID: PMC8522421 DOI: 10.1093/cid/ciab845] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND We assessed the safety and immunogenicity of a recombinant adenovirus type-5 (Ad5)-vectored coronavirus disease 2019 (COVID-19) vaccine with homologous prime-boost regimens in healthy participants aged ≥6 years. METHODS In this randomized, double-blind, placebo-controlled trial, participants received vaccine or placebo 56 days apart. Enzyme-linked immunosorbent assay (ELISA) antibodies to the receptor binding domain (RBD) and pseudovirus neutralizing antibodies were detected. Adverse events were monitored for 28 days following each vaccination. RESULTS A total of 430 participants were enrolled in the study, with 30 participants aged 18-55 years (MID cohort), 250 aged ≥56 years (OLD cohort), and 150 aged 6-17 years (MIN cohort). Ad5-vectored COVID-19 vaccine induced significant RBD-specific ELISA antibodies that decreased with increasing age, with geometric mean titers (GMTs) of 1037.5 in the MIN cohort, 647.2 in the MID cohort, and 338.0 in the OLD cohort receiving 5 × 1010 viral particles on day 28 following boost vaccination. Pseudovirus neutralizing antibodies showed a similar pattern, with GMTs of 168.0 in the MIN cohort, 76.8 in the MID cohort, and 79.7 in the OLD cohort. A single dose in children and adolescents induced higher antibody responses than that elicited by 2 doses in adults, with GMTs of 1091.6 and 96.6 for ELISA antibody and neutralizing antibody, respectively. Homologous prime-boost vaccination was safe and tolerable. CONCLUSIONS Ad5-vectored COVID-19 vaccine with a single dose was safe and induced robust immune responses in children and adolescents aged 6-17 years. A prime-boost regimen needs further exploration for Ad5-vectored COVID-19 vaccine.Ad5-vectored COVID-19 vaccine with a single dose was safe and tolerated, and induced robust immune responses in children and adolescents aged 6-17 years. The boosting effect on immune responses of the homologous prime-boost regime given 56 days apart was limited. CLINICAL TRIALS REGISTRATION NCT04566770.
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Affiliation(s)
- Fengcai Zhu
- Vaccine Clinical Evaluation Department, Jiangsu Province Center for Disease Control and Prevention, Nanjing, China
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Province Center for Disease Control and Prevention, Nanjing, China
| | - Pengfei Jin
- Vaccine Clinical Evaluation Department, Jiangsu Province Center for Disease Control and Prevention, Nanjing, China
| | - Tao Zhu
- CanSino Biologics, Tianjin, China
| | - Wenjuan Wang
- Vaccine Clinical Evaluation Department, Jiangsu Province Center for Disease Control and Prevention, Nanjing, China
| | - Huayue Ye
- Taizhou Center for Vaccine Clinical Research, Taizhou, China
| | - Hongxing Pan
- Vaccine Clinical Evaluation Department, Jiangsu Province Center for Disease Control and Prevention, Nanjing, China
| | - Lihua Hou
- Beijing Institute of Biotechnology, Beijing, China
| | - Jingxin Li
- Vaccine Clinical Evaluation Department, Jiangsu Province Center for Disease Control and Prevention, Nanjing, China
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Province Center for Disease Control and Prevention, Nanjing, China
| | - Xue Wang
- CanSino Biologics, Tianjin, China
| | - Shipo Wu
- Beijing Institute of Biotechnology, Beijing, China
| | | | | | | | - Hongbin Wu
- Taizhou Center for Vaccine Clinical Research, Taizhou, China
| | - Xuewen Wang
- Shanghai Canming Medical Technology, Shanghai, China
| | - Wei Chen
- Beijing Institute of Biotechnology, Beijing, China
- Corresponding author: Wei Chen, Beijing Institute of Biotechnology, Beijing 100071, China ()
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19
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A three-antigen Plasmodium falciparum DNA prime-Adenovirus boost malaria vaccine regimen is superior to a two-antigen regimen and protects against controlled human malaria infection in healthy malaria-naïve adults. PLoS One 2021; 16:e0256980. [PMID: 34495988 PMCID: PMC8425539 DOI: 10.1371/journal.pone.0256980] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 08/15/2021] [Indexed: 12/13/2022] Open
Abstract
Background A DNA-prime/human adenovirus serotype 5 (HuAd5) boost vaccine encoding Plasmodium falciparum (Pf) circumsporozoite protein (PfCSP) and Pf apical membrane antigen-1 (PfAMA1), elicited protection in 4/15 (27%) of subjects against controlled human malaria infection (CHMI) that was statistically associated with CD8+ T cell responses. Subjects with high level pre-existing immunity to HuAd5 were not protected, suggesting an adverse effect on vaccine efficacy (VE). We replaced HuAd5 with chimpanzee adenovirus 63 (ChAd63), and repeated the study, assessing both the two-antigen (CSP, AMA1 = CA) vaccine, and a novel three-antigen (CSP, AMA1, ME-TRAP = CAT) vaccine that included a third pre-erythrocytic stage antigen [malaria multiple epitopes (ME) fused to the Pf thrombospondin-related adhesive protein (TRAP)] to potentially enhance protection. Methodology This was an open label, randomized Phase 1 trial, assessing safety, tolerability, and VE against CHMI in healthy, malaria naïve adults. Forty subjects (20 each group) were to receive three monthly CA or CAT DNA priming immunizations, followed by corresponding ChAd63 boost four months later. Four weeks after the boost, immunized subjects and 12 infectivity controls underwent CHMI by mosquito bite using the Pf3D7 strain. VE was assessed by determining the differences in time to parasitemia as detected by thick blood smears up to 28-days post CHMI and utilizing the log rank test, and by calculating the risk ratio of each treatment group and subtracting from 1, with significance calculated by the Cochran-Mantel-Haenszel method. Results In both groups, systemic adverse events (AEs) were significantly higher after the ChAd63 boost than DNA immunizations. Eleven of 12 infectivity controls developed parasitemia (mean 11.7 days). In the CA group, 15 of 16 (93.8%) immunized subjects developed parasitemia (mean 12.0 days). In the CAT group, 11 of 16 (63.8%) immunized subjects developed parasitemia (mean 13.0 days), indicating significant protection by log rank test compared to infectivity controls (p = 0.0406) and the CA group (p = 0.0229). VE (1 minus the risk ratio) in the CAT group was 25% compared to -2% in the CA group. The CA and CAT vaccines induced robust humoral (ELISA antibodies against CSP, AMA1 and TRAP, and IFA responses against sporozoites and Pf3D7 blood stages), and cellular responses (IFN-γ FluoroSpot responses to CSP, AMA1 and TRAP) that were not associated with protection. Conclusions This study demonstrated that the ChAd63 CAT vaccine exhibited significant protective efficacy, and confirmed protection was afforded by adding a third antigen (T) to a two-antigen (CA) formulation to achieve increased VE. Although the ChAd63-CAT vaccine was associated with increased frequencies of systemic AEs compared to the CA vaccine and, historically, compared to the HuAd5 vectored malaria vaccine encoding CSP and AMA1, they were transient and associated with increased vector dosing.
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20
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Sivakumaran D, Blatner G, Bakken R, Hokey D, Ritz C, Jenum S, Grewal HMS. A 2-Dose AERAS-402 Regimen Boosts CD8 + Polyfunctionality in HIV-Negative, BCG-Vaccinated Recipients. Front Immunol 2021; 12:673532. [PMID: 34177914 PMCID: PMC8231292 DOI: 10.3389/fimmu.2021.673532] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Accepted: 05/18/2021] [Indexed: 11/20/2022] Open
Abstract
Despite the widespread use of BCG, tuberculosis (TB) remains a global threat. Existing vaccine candidates in clinical trials are designed to replace or boost BCG which does not provide satisfying long-term protection. AERAS-402 is a replication-deficient Ad35 vaccine encoding a fusion protein of the M. tuberculosis (Mtb) antigens 85A, 85B, and TB10.4. The present phase I trial assessed the safety and immunogenicity of AERAS-402 in participants living in India – a highly TB-endemic area. Healthy male participants aged 18–45 years with a negative QuantiFERON-TB Gold in-tube test (QFT) were recruited. Enrolled participants (n=12) were randomized 2:1 to receive two intramuscular injections of either AERAS-402 (3 x 1010 viral particles [vp]); (n=8) or placebo (n=4) on study days 0 and 28. Safety and immunogenicity parameters were evaluated for up to 182 days post the second injection. Immunogenicity was assessed by a flow cytometry-based intracellular cytokine staining (ICS) assay and transcriptional profiling. The latter was examined using dual-color-Reverse-Transcriptase-Multiplex-Ligation-dependent-Probe-Amplification (dc-RT MLPA) assay. AERAS-402 was well tolerated, and no vaccine-related serious adverse events were recorded. The vaccine-induced CD8+ T-cell responses were dominated by cells co-expressing IFN-γ, TNF-α, and IL-2 (“polyfunctional” cells) and were more robust than CD4+ T-cell responses. Five genes (CXCL10, GNLY, IFI35, IL1B and PTPRCv2) were differentially expressed between the AERAS-402-group and the placebo group, suggesting vaccine-induced responses. Further, compared to pre-vaccination, three genes (CLEC7A, PTPRCv1 and TAGAP) were consistently up-regulated following two doses of vaccination in the AERAS-402-group. No safety concerns were observed for AERAS-402 in healthy Indian adult males. The vaccine-induced predominantly polyfunctional CD8+ T cells in response to Ag85B, humoral immunity, and altered gene expression profiles in peripheral blood mononuclear cells (PBMCs) indicative of activation of various immunologically relevant biological pathways.
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Affiliation(s)
- Dhanasekaran Sivakumaran
- Department of Clinical Science, Bergen Integrated Diagnostic Stewardship Cluster, Faculty of Medicine, University of Bergen, Bergen, Norway.,Department of Microbiology, Haukeland University Hospital, University of Bergen, Bergen, Norway
| | - Gretta Blatner
- Biomedical Advanced Research and Development Authority (BARDA), Department of Health and Human Services, Washington, DC, United States.,Aeras Global TB Vaccine Foundation, Rockville, MD, United States
| | - Rasmus Bakken
- Department of Clinical Science, Bergen Integrated Diagnostic Stewardship Cluster, Faculty of Medicine, University of Bergen, Bergen, Norway.,Department of Microbiology, Haukeland University Hospital, University of Bergen, Bergen, Norway
| | - David Hokey
- Aeras Global TB Vaccine Foundation, Rockville, MD, United States
| | - Christian Ritz
- Department of Clinical Science, Bergen Integrated Diagnostic Stewardship Cluster, Faculty of Medicine, University of Bergen, Bergen, Norway.,Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Synne Jenum
- Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway
| | - Harleen M S Grewal
- Department of Clinical Science, Bergen Integrated Diagnostic Stewardship Cluster, Faculty of Medicine, University of Bergen, Bergen, Norway.,Department of Microbiology, Haukeland University Hospital, University of Bergen, Bergen, Norway
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21
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Salisch NC, Stephenson KE, Williams K, Cox F, van der Fits L, Heerwegh D, Truyers C, Habets MN, Kanjilal DG, Larocca RA, Abbink P, Liu J, Peter L, Fierro C, De La Barrera RA, Modjarrad K, Zahn RC, Hendriks J, Cahill CP, Leyssen M, Douoguih M, van Hoof J, Schuitemaker H, Barouch DH. A Double-Blind, Randomized, Placebo-Controlled Phase 1 Study of Ad26.ZIKV.001, an Ad26-Vectored Anti-Zika Virus Vaccine. Ann Intern Med 2021; 174:585-594. [PMID: 33587687 DOI: 10.7326/m20-5306] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Zika virus (ZIKV) may cause severe congenital disease after maternal-fetal transmission. No vaccine is currently available. OBJECTIVE To assess the safety and immunogenicity of Ad26.ZIKV.001, a prophylactic ZIKV vaccine candidate. DESIGN Phase 1 randomized, double-blind, placebo-controlled clinical study. (ClinicalTrials.gov: NCT03356561). SETTING United States. PARTICIPANTS 100 healthy adult volunteers. INTERVENTION Ad26.ZIKV.001, an adenovirus serotype 26 vector encoding ZIKV M-Env, administered in 1- or 2-dose regimens of 5 × 1010 or 1 × 1011 viral particles (vp), or placebo. MEASUREMENTS Local and systemic adverse events; neutralization titers by microneutralization assay (MN50) and T-cell responses by interferon-γ enzyme-linked immunospot and intracellular cytokine staining; and protectivity of vaccine-induced antibodies in a subset of participants through transfer in an exploratory mouse ZIKV challenge model. RESULTS All regimens were well tolerated, with no safety concerns identified. In both 2-dose regimens, ZIKV neutralizing titers peaked 14 days after the second vaccination, with geometric mean MN50 titers (GMTs) of 1065.6 (95% CI, 494.9 to 2294.5) for 5 × 1010 vp and 956.6 (595.8 to 1535.8) for 1 × 1011 vp. Titers persisted for at least 1 year at a GMT of 68.7 (CI, 26.4-178.9) for 5 × 1010 vp and 87.0 (CI, 29.3 to 258.6) for 1 × 1011 vp. A 1-dose regimen of 1 × 1011 vp Ad26.ZIKV.001 induced seroconversion in all participants 56 days after the first vaccination (GMT, 103.4 [CI, 52.7 to 202.9]), with titers persisting for at least 1 year (GMT, 90.2 [CI, 38.4 to 212.2]). Env-specific cellular responses were induced. Protection against ZIKV challenge was observed after antibody transfer from participants into mice, and MN50 titers correlated with protection in this model. LIMITATION The study was conducted in a nonendemic area, so it did not assess safety and immunogenicity in a flavivirus-exposed population. CONCLUSION The safety and immunogenicity profile makes Ad26.ZIKV.001 a promising candidate for further development if the need reemerges. PRIMARY FUNDING SOURCE Janssen Vaccines and Infectious Diseases.
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Affiliation(s)
- Nadine C Salisch
- Janssen Vaccines and Prevention, Leiden, the Netherlands (N.C.S., F.C., L.V., M.N.H., R.C.Z., J.H., C.P.C., M.L., M.D., J.V., H.S.)
| | - Kathryn E Stephenson
- Beth Israel Deaconess Medical Center, Boston, Massachusetts (K.E.S., D.G.K., R.A.L., P.A., J.L., L.P., D.H.B.)
| | - Kristi Williams
- Janssen Research and Development, Spring House, Pennsylvania (K.W.)
| | - Freek Cox
- Janssen Vaccines and Prevention, Leiden, the Netherlands (N.C.S., F.C., L.V., M.N.H., R.C.Z., J.H., C.P.C., M.L., M.D., J.V., H.S.)
| | - Leslie van der Fits
- Janssen Vaccines and Prevention, Leiden, the Netherlands (N.C.S., F.C., L.V., M.N.H., R.C.Z., J.H., C.P.C., M.L., M.D., J.V., H.S.)
| | - Dirk Heerwegh
- Janssen Research and Development, Beerse, Belgium (D.H., C.T.)
| | - Carla Truyers
- Janssen Research and Development, Beerse, Belgium (D.H., C.T.)
| | - Marrit N Habets
- Janssen Vaccines and Prevention, Leiden, the Netherlands (N.C.S., F.C., L.V., M.N.H., R.C.Z., J.H., C.P.C., M.L., M.D., J.V., H.S.)
| | - Diane G Kanjilal
- Beth Israel Deaconess Medical Center, Boston, Massachusetts (K.E.S., D.G.K., R.A.L., P.A., J.L., L.P., D.H.B.)
| | - Rafael A Larocca
- Beth Israel Deaconess Medical Center, Boston, Massachusetts (K.E.S., D.G.K., R.A.L., P.A., J.L., L.P., D.H.B.)
| | - Peter Abbink
- Beth Israel Deaconess Medical Center, Boston, Massachusetts (K.E.S., D.G.K., R.A.L., P.A., J.L., L.P., D.H.B.)
| | - Jinyan Liu
- Beth Israel Deaconess Medical Center, Boston, Massachusetts (K.E.S., D.G.K., R.A.L., P.A., J.L., L.P., D.H.B.)
| | - Lauren Peter
- Beth Israel Deaconess Medical Center, Boston, Massachusetts (K.E.S., D.G.K., R.A.L., P.A., J.L., L.P., D.H.B.)
| | | | | | - Kayvon Modjarrad
- Walter Reed Army Institute of Research, Silver Spring, Maryland (R.A.D., K.M.)
| | - Roland C Zahn
- Janssen Vaccines and Prevention, Leiden, the Netherlands (N.C.S., F.C., L.V., M.N.H., R.C.Z., J.H., C.P.C., M.L., M.D., J.V., H.S.)
| | - Jenny Hendriks
- Janssen Vaccines and Prevention, Leiden, the Netherlands (N.C.S., F.C., L.V., M.N.H., R.C.Z., J.H., C.P.C., M.L., M.D., J.V., H.S.)
| | - Conor P Cahill
- Janssen Vaccines and Prevention, Leiden, the Netherlands (N.C.S., F.C., L.V., M.N.H., R.C.Z., J.H., C.P.C., M.L., M.D., J.V., H.S.)
| | - Maarten Leyssen
- Janssen Vaccines and Prevention, Leiden, the Netherlands (N.C.S., F.C., L.V., M.N.H., R.C.Z., J.H., C.P.C., M.L., M.D., J.V., H.S.)
| | - Macaya Douoguih
- Janssen Vaccines and Prevention, Leiden, the Netherlands (N.C.S., F.C., L.V., M.N.H., R.C.Z., J.H., C.P.C., M.L., M.D., J.V., H.S.)
| | - Johan van Hoof
- Janssen Vaccines and Prevention, Leiden, the Netherlands (N.C.S., F.C., L.V., M.N.H., R.C.Z., J.H., C.P.C., M.L., M.D., J.V., H.S.)
| | - Hanneke Schuitemaker
- Janssen Vaccines and Prevention, Leiden, the Netherlands (N.C.S., F.C., L.V., M.N.H., R.C.Z., J.H., C.P.C., M.L., M.D., J.V., H.S.)
| | - Dan H Barouch
- Beth Israel Deaconess Medical Center, Boston, Massachusetts (K.E.S., D.G.K., R.A.L., P.A., J.L., L.P., D.H.B.)
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22
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Wang JJ, Zhang N, Richardson SA, Wu JV. Rapid lateral flow tests for the detection of SARS-CoV-2 neutralizing antibodies. Expert Rev Mol Diagn 2021; 21:363-370. [PMID: 33840347 PMCID: PMC8054491 DOI: 10.1080/14737159.2021.1913123] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/31/2021] [Indexed: 01/01/2023]
Abstract
Background: Rapid Lateral Flow Test (LFT) has been broadly utilized in detection or diagnosis of numerous disease-related antigens and antibodies. It is the most popular format of point-of-care test (POCT) and quickest and easiest way to detect a targeted molecule. In the combat against COVID-19 pandemic, hundreds of POCTs have been developed and are commercially available now. They are designed to detect either a SARS-CoV-2 viral antigen or IgG and IgM antibodies binding to it. Among the binding antibodies, a special type of functional antibodies that block the interaction between SARS-CoV-2 virus and its human receptor, neutralizing antibodies (NAbs), are of particular interest to public as well as in vaccination management. However as of today, POCTs for the detection of SARS-CoV-2 NAbs remain under late stage of development.Scope and method:In this review, we first summarize the importance of awareness and monitoring of SARS-CoV-2 NAbs in the combat against COVID-19 pandemic. Secondly, we compare the available methods for the detection of SARS-CoV-2 NAbs. Next, we describe challenges in the development of a rapid lateral flow test for the detection of SARS-CoV-2 NAbs. Finally, we outline its product formats and applications in research and in disease management. Conclusion:Vaccine effectiveness is unknown for an individual unless measured. NAb level is the most viable measurement for vaccine effectiveness or immunity. A broadly accessible NAb POCT is urgently needed.
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Affiliation(s)
| | - Nan Zhang
- Department Innovation, Novodiax Inc, USA
| | | | - Jin V. Wu
- Department Innovation, Novodiax Inc, USA
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23
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Williams K, Bastian AR, Feldman RA, Omoruyi E, de Paepe E, Hendriks J, van Zeeburg H, Godeaux O, Langedijk JPM, Schuitemaker H, Sadoff J, Callendret B. Phase 1 Safety and Immunogenicity Study of a Respiratory Syncytial Virus Vaccine With an Adenovirus 26 Vector Encoding Prefusion F (Ad26.RSV.preF) in Adults Aged ≥60 Years. J Infect Dis 2021; 222:979-988. [PMID: 32320465 DOI: 10.1093/infdis/jiaa193] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 04/20/2020] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Despite the high disease burden of respiratory syncytial virus (RSV) in older adults, there is no approved vaccine. We evaluated the experimental RSV vaccine, Ad26.RSV.preF, a replication-incompetent adenovirus 26 vector encoding the F protein stabilized in prefusion conformation. METHODS This phase 1 clinical trial was performed in healthy adults aged ≥60 years. Seventy-two participants received 1 or 2 intramuscular injections of low-dose (LD; 5 × 1010 vector particles) or high-dose (HD; 1 × 1011 vector particles) Ad26.RSV.preF vaccine or placebo, with approximately 12 months between doses and 2-year follow-up for safety and immunogenicity outcomes. RESULTS Solicited adverse events were reported by 44% of vaccine recipients and were transient and mild or moderate in intensity. No serious adverse events were related to vaccination. After the first vaccination, geometric mean titers for RSV-A2 neutralization increased from baseline (432 for LD and 512 for HD vaccine) to day 29 (1031 for LD and 1617 for HD). Pre-F-specific antibody geometric mean titers and median frequencies of F-specific interferon γ-secreting T cells also increased substantially from baseline. These immune responses were still maintained above baseline levels 2 years after immunization and could be boosted with a second immunization at 1 year. CONCLUSIONS Ad26.RSV.preF (LD and HD) had an acceptable safety profile and elicited sustained humoral and cellular immune responses after a single immunization in older adults.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Jerry Sadoff
- Janssen Vaccines & Prevention, Leiden, the Netherlands
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24
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Recent Developments in SARS-CoV-2 Neutralizing Antibody Detection Methods. Curr Med Sci 2021; 41:1052-1064. [PMID: 34935114 PMCID: PMC8692081 DOI: 10.1007/s11596-021-2470-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/20/2021] [Indexed: 12/14/2022]
Abstract
The ongoing Coronavirus disease 19 pandemic has likely changed the world in ways not seen in the past. Neutralizing antibody (NAb) assays play an important role in the management of the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) outbreak. Using these tools, we can assess the presence and duration of antibody-mediated protection in naturally infected individuals, screen convalescent plasma preparations for donation, test the efficacy of immunotherapy, and analyze NAb titers and persistence after vaccination to predict vaccine-induced protective effects. This review briefly summarizes the various methods used for the detection of SARS-CoV-2 NAbs and compares their advantages and disadvantages to facilitate their development and clinical application.
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25
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Vaccines based on replication incompetent Ad26 viral vectors: Standardized template with key considerations for a risk/benefit assessment. Vaccine 2020; 39:3081-3101. [PMID: 33676782 PMCID: PMC7532807 DOI: 10.1016/j.vaccine.2020.09.018] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 09/02/2020] [Indexed: 11/29/2022]
Abstract
Replication-incompetent adenoviral vectors have been under investigation as a platform to carry a variety of transgenes, and express them as a basis for vaccine development. A replication-incompetent adenoviral vector based on human adenovirus type 26 (Ad26) has been evaluated in several clinical trials. The Brighton Collaboration Viral Vector Vaccines Safety Working Group (V3SWG) was formed to evaluate the safety and features of recombinant viral vector vaccines. This paper reviews features of the Ad26 vectors, including tabulation of safety and risk assessment characteristics of Ad26-based vaccines. In the Ad26 vector, deletion of E1 gene rendering the vector replication incompetent is combined with additional genetic engineering for vaccine manufacturability and transgene expression optimization. These vaccines can be manufactured in mammalian cell lines at scale providing an effective, flexible system for high-yield manufacturing. Ad26 vector vaccines have favorable thermostability profiles, compatible with vaccine supply chains. Safety data are compiled in the Ad26 vaccine safety database version 4.0, with unblinded data from 23 ongoing and completed clinical studies for 3912 participants in five different Ad26-based vaccine programs. Overall, Ad26-based vaccines have been well tolerated, with no significant safety issues identified. Evaluation of Ad26-based vaccines is continuing, with >114,000 participants vaccinated as of 4th September 2020. Extensive evaluation of immunogenicity in humans shows strong, durable humoral and cellular immune responses. Clinical trials have not revealed impact of pre-existing immunity to Ad26 on vaccine immunogenicity, even in the presence of Ad26 neutralizing antibody titers or Ad26-targeting T cell responses at baseline. The first Ad26-based vaccine, against Ebola virus, received marketing authorization from EC on 1st July 2020, as part of the Ad26.ZEBOV, MVA-BN-Filo vaccine regimen. New developments based on Ad26 vectors are underway, including a COVID-19 vaccine, which is currently in phase 3 of clinical evaluation.
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Liu Z, Tian X, Liu W, Xian Y, Chen W, Zhou R. A Sensitive and High-Throughput Flow Cytometry-Based Assay for Measuring Antibody Neutralization of Human Adenovirus Type 3. Virol Sin 2020; 36:537-544. [PMID: 32990935 DOI: 10.1007/s12250-020-00295-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Accepted: 08/24/2020] [Indexed: 11/28/2022] Open
Abstract
The assessment of neutralization activity is an important step in the evaluation of neutralizing antibodies (NAbs). The traditional methods for measuring the antibody neutralization of human adenovirus type 3 (HAdV-3) are the microneutralization (MN) assay, which has insufficient sensitivity, and the plaque reduction neutralization test (PRNT), which is not suitable for high-throughput screening. Herein, we describe the development of a flow cytometry-based neutralization (FCN) assay for measuring the neutralization of sera, cell culture supernatants, and chimeric antibodies against HAdV-3 on the basis of a recombinant HAdV-3 (rHAdV-3) construct expressing the enhanced green fluorescent protein (EGFP). For flow cytometry-based assays, the optimal cell confluence was determined as 90%, and the virus was titrated using the assay. The established FCN assay follows the percentage law and an optimal MOI of not less than 5 × 10-4 was determined by using a purified chimeric antibody. In addition, comparison of the anti-HAdV-3 NAb titers of 72 human serum samples by the MN and FCN assays, showed that both assays correlated strongly with each other. Our FCN assay was an improvement over the MN assay because the observation period was reduced from 3 to 1 days and data analysis could be performed objectively and robotically. Importantly, the newly established FCN assay allows measurement of the neutralization activity of chimeric antibodies expressed in cell culture supernatants. Thus, this sensitive and high-throughput FCN assay is a useful alternative to the MN assay for measuring the antibody neutralization of HAdV-3 and for screening anti-HAdV-3 NAbs in cell culture supernatants.
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Affiliation(s)
- Zhenwei Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510000, China
| | - Xingui Tian
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510000, China
| | - Wenkuan Liu
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510000, China
| | - Yuting Xian
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510000, China
| | - Weilue Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510000, China
| | - Rong Zhou
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, 510000, China.
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Zhu FC, Guan XH, Li YH, Huang JY, Jiang T, Hou LH, Li JX, Yang BF, Wang L, Wang WJ, Wu SP, Wang Z, Wu XH, Xu JJ, Zhang Z, Jia SY, Wang BS, Hu Y, Liu JJ, Zhang J, Qian XA, Li Q, Pan HX, Jiang HD, Deng P, Gou JB, Wang XW, Wang XH, Chen W. Immunogenicity and safety of a recombinant adenovirus type-5-vectored COVID-19 vaccine in healthy adults aged 18 years or older: a randomised, double-blind, placebo-controlled, phase 2 trial. Lancet 2020; 396:479-488. [PMID: 32702299 PMCID: PMC7836858 DOI: 10.1016/s0140-6736(20)31605-6] [Citation(s) in RCA: 827] [Impact Index Per Article: 206.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND This is the first randomised controlled trial for assessment of the immunogenicity and safety of a candidate non-replicating adenovirus type-5 (Ad5)-vectored COVID-19 vaccine, aiming to determine an appropriate dose of the candidate vaccine for an efficacy study. METHODS This randomised, double-blind, placebo-controlled, phase 2 trial of the Ad5-vectored COVID-19 vaccine was done in a single centre in Wuhan, China. Healthy adults aged 18 years or older, who were HIV-negative and previous severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection-free, were eligible to participate and were randomly assigned to receive the vaccine at a dose of 1 × 1011 viral particles per mL or 5 × 1010 viral particles per mL, or placebo. Investigators allocated participants at a ratio of 2:1:1 to receive a single injection intramuscularly in the arm. The randomisation list (block size 4) was generated by an independent statistician. Participants, investigators, and staff undertaking laboratory analyses were masked to group allocation. The primary endpoints for immunogenicity were the geometric mean titres (GMTs) of specific ELISA antibody responses to the receptor binding domain (RBD) and neutralising antibody responses at day 28. The primary endpoint for safety evaluation was the incidence of adverse reactions within 14 days. All recruited participants who received at least one dose were included in the primary and safety analyses. This study is registered with ClinicalTrials.gov, NCT04341389. FINDINGS 603 volunteers were recruited and screened for eligibility between April 11 and 16, 2020. 508 eligible participants (50% male; mean age 39·7 years, SD 12·5) consented to participate in the trial and were randomly assigned to receive the vaccine (1 × 1011 viral particles n=253; 5 × 1010 viral particles n=129) or placebo (n=126). In the 1 × 1011 and 5 × 1010 viral particles dose groups, the RBD-specific ELISA antibodies peaked at 656·5 (95% CI 575·2-749·2) and 571·0 (467·6-697·3), with seroconversion rates at 96% (95% CI 93-98) and 97% (92-99), respectively, at day 28. Both doses of the vaccine induced significant neutralising antibody responses to live SARS-CoV-2, with GMTs of 19·5 (95% CI 16·8-22·7) and 18·3 (14·4-23·3) in participants receiving 1 × 1011 and 5 × 1010 viral particles, respectively. Specific interferon γ enzyme-linked immunospot assay responses post vaccination were observed in 227 (90%, 95% CI 85-93) of 253 and 113 (88%, 81-92) of 129 participants in the 1 × 1011 and 5 × 1010 viral particles dose groups, respectively. Solicited adverse reactions were reported by 183 (72%) of 253 and 96 (74%) of 129 participants in the 1 × 1011 and 5 × 1010 viral particles dose groups, respectively. Severe adverse reactions were reported by 24 (9%) participants in the 1 × 1011 viral particles dose group and one (1%) participant in the 5 × 1010 viral particles dose group. No serious adverse reactions were documented. INTERPRETATION The Ad5-vectored COVID-19 vaccine at 5 × 1010 viral particles is safe, and induced significant immune responses in the majority of recipients after a single immunisation. FUNDING National Key R&D Programme of China, National Science and Technology Major Project, and CanSino Biologics.
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Affiliation(s)
- Feng-Cai Zhu
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China.
| | - Xu-Hua Guan
- Hubei Provincial Center for Diseases Control and Prevention, Wuhan, China
| | - Yu-Hua Li
- National Institute for Food and Drug Control, Dongcheng, Beijing, China
| | - Jian-Ying Huang
- Clinical Trial Center, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Tao Jiang
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing, China
| | - Li-Hua Hou
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China
| | - Jing-Xin Li
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Bei-Fang Yang
- Hubei Provincial Center for Diseases Control and Prevention, Wuhan, China
| | - Ling Wang
- National Institute for Food and Drug Control, Dongcheng, Beijing, China
| | - Wen-Juan Wang
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Shi-Po Wu
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China
| | - Zhao Wang
- Hubei Provincial Center for Diseases Control and Prevention, Wuhan, China
| | - Xiao-Hong Wu
- National Institute for Food and Drug Control, Dongcheng, Beijing, China
| | - Jun-Jie Xu
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China
| | - Zhe Zhang
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China
| | - Si-Yue Jia
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Bu-Sen Wang
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China
| | - Yi Hu
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing, China
| | - Jing-Jing Liu
- National Institute for Food and Drug Control, Dongcheng, Beijing, China
| | - Jun Zhang
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China
| | - Xiao-Ai Qian
- Hubei Provincial Center for Diseases Control and Prevention, Wuhan, China
| | - Qiong Li
- Hubei Provincial Center for Diseases Control and Prevention, Wuhan, China
| | - Hong-Xing Pan
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Hu-Dachuan Jiang
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Peng Deng
- Hubei Provincial Center for Diseases Control and Prevention, Wuhan, China
| | | | - Xue-Wen Wang
- Shanghai Canming Medical Technology, Shanghai, China
| | - Xing-Huan Wang
- Clinical Trial Center, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Wei Chen
- Beijing Institute of Biotechnology, Academy of Military Medical Sciences, Beijing, China.
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Zhu FC, Li YH, Guan XH, Hou LH, Wang WJ, Li JX, Wu SP, Wang BS, Wang Z, Wang L, Jia SY, Jiang HD, Wang L, Jiang T, Hu Y, Gou JB, Xu SB, Xu JJ, Wang XW, Wang W, Chen W. Safety, tolerability, and immunogenicity of a recombinant adenovirus type-5 vectored COVID-19 vaccine: a dose-escalation, open-label, non-randomised, first-in-human trial. Lancet 2020; 395:1845-1854. [PMID: 32450106 PMCID: PMC7255193 DOI: 10.1016/s0140-6736(20)31208-3] [Citation(s) in RCA: 935] [Impact Index Per Article: 233.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 05/18/2020] [Accepted: 05/18/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND A vaccine to protect against COVID-19 is urgently needed. We aimed to assess the safety, tolerability, and immunogenicity of a recombinant adenovirus type-5 (Ad5) vectored COVID-19 vaccine expressing the spike glycoprotein of a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) strain. METHODS We did a dose-escalation, single-centre, open-label, non-randomised, phase 1 trial of an Ad5 vectored COVID-19 vaccine in Wuhan, China. Healthy adults aged between 18 and 60 years were sequentially enrolled and allocated to one of three dose groups (5 × 1010, 1 × 1011, and 1·5 × 1011 viral particles) to receive an intramuscular injection of vaccine. The primary outcome was adverse events in the 7 days post-vaccination. Safety was assessed over 28 days post-vaccination. Specific antibodies were measured with ELISA, and the neutralising antibody responses induced by vaccination were detected with SARS-CoV-2 virus neutralisation and pseudovirus neutralisation tests. T-cell responses were assessed by enzyme-linked immunospot and flow-cytometry assays. This study is registered with ClinicalTrials.gov, NCT04313127. FINDINGS Between March 16 and March 27, 2020, we screened 195 individuals for eligibility. Of them, 108 participants (51% male, 49% female; mean age 36·3 years) were recruited and received the low dose (n=36), middle dose (n=36), or high dose (n=36) of the vaccine. All enrolled participants were included in the analysis. At least one adverse reaction within the first 7 days after the vaccination was reported in 30 (83%) participants in the low dose group, 30 (83%) participants in the middle dose group, and 27 (75%) participants in the high dose group. The most common injection site adverse reaction was pain, which was reported in 58 (54%) vaccine recipients, and the most commonly reported systematic adverse reactions were fever (50 [46%]), fatigue (47 [44%]), headache (42 [39%]), and muscle pain (18 [17%]. Most adverse reactions that were reported in all dose groups were mild or moderate in severity. No serious adverse event was noted within 28 days post-vaccination. ELISA antibodies and neutralising antibodies increased significantly at day 14, and peaked 28 days post-vaccination. Specific T-cell response peaked at day 14 post-vaccination. INTERPRETATION The Ad5 vectored COVID-19 vaccine is tolerable and immunogenic at 28 days post-vaccination. Humoral responses against SARS-CoV-2 peaked at day 28 post-vaccination in healthy adults, and rapid specific T-cell responses were noted from day 14 post-vaccination. Our findings suggest that the Ad5 vectored COVID-19 vaccine warrants further investigation. FUNDING National Key R&D Program of China, National Science and Technology Major Project, and CanSino Biologics.
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Affiliation(s)
- Feng-Cai Zhu
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China.
| | - Yu-Hua Li
- China National Institute for Food and Drug Control, Beijing, China
| | - Xu-Hua Guan
- Hubei Provincial Center for Disease Control and Prevention, Wuhan, China
| | - Li-Hua Hou
- Beijing Institute of Biotechnology, Beijing, China
| | - Wen-Juan Wang
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Jing-Xin Li
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Shi-Po Wu
- Beijing Institute of Biotechnology, Beijing, China
| | - Bu-Sen Wang
- Beijing Institute of Biotechnology, Beijing, China
| | - Zhao Wang
- Hubei Provincial Center for Disease Control and Prevention, Wuhan, China
| | - Lei Wang
- Hubei Provincial Center for Disease Control and Prevention, Wuhan, China
| | - Si-Yue Jia
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Hu-Dachuan Jiang
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Ling Wang
- China National Institute for Food and Drug Control, Beijing, China
| | - Tao Jiang
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing, China
| | - Yi Hu
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing, China
| | | | - Sha-Bei Xu
- Clinical Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun-Jie Xu
- Beijing Institute of Biotechnology, Beijing, China
| | - Xue-Wen Wang
- Shanghai Canming Medical Technology, Shanghai, China
| | - Wei Wang
- Clinical Research Center, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Wei Chen
- Beijing Institute of Biotechnology, Beijing, China.
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Safety, reactogenicity, and immunogenicity of a chimpanzee adenovirus vectored Ebola vaccine in adults in Africa: a randomised, observer-blind, placebo-controlled, phase 2 trial. THE LANCET. INFECTIOUS DISEASES 2020; 20:707-718. [DOI: 10.1016/s1473-3099(20)30016-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/19/2019] [Accepted: 01/13/2020] [Indexed: 12/31/2022]
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30
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Tapia MD, Sow SO, Mbaye KD, Thiongane A, Ndiaye BP, Ndour CT, Mboup S, Keshinro B, Kinge TN, Vernet G, Bigna JJ, Oguche S, Koram KA, Asante KP, Gobert P, Hogrefe WR, De Ryck I, Debois M, Bourguignon P, Jongert E, Ballou WR, Koutsoukos M, Roman F, Amusu S, Ayuk L, Bilong C, Boahen O, Camara M, Cheick Haidara F, Coly D, Dièye S, Dosoo D, Ekedi M, Eneida Almeida Dos Santos I, Kaali S, Kokogho A, Levine M, Opoku N, Owusu-Agyei S, Pitmang S, Sall F, Seydi M, Sztein M, Tejiokem M, Traore A, Vernet MA, Yawson AK. Safety, reactogenicity, and immunogenicity of a chimpanzee adenovirus vectored Ebola vaccine in children in Africa: a randomised, observer-blind, placebo-controlled, phase 2 trial. THE LANCET. INFECTIOUS DISEASES 2020; 20:719-730. [DOI: 10.1016/s1473-3099(20)30019-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/09/2019] [Accepted: 01/13/2020] [Indexed: 01/23/2023]
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Stephenson KE, Wegmann F, Tomaka F, Walsh SR, Tan CS, Lavreys L, Ansel JL, Kanjilal DG, Jaegle K, Nkolola JP, Peter L, Fogel R, Bradshaw C, Tyler A, Makoni T, Howe L, Quijada D, Chandrashekar A, Bondzie EA, Borducchi EN, Yanosick KE, Hendriks J, Nijs S, Truyers C, Tolboom J, Zahn RC, Seaman MS, Alter G, Stieh DJ, Pau MG, Schuitemaker H, Barouch DH. Comparison of shortened mosaic HIV-1 vaccine schedules: a randomised, double-blind, placebo-controlled phase 1 trial (IPCAVD010/HPX1002) and a preclinical study in rhesus monkeys (NHP 17-22). Lancet HIV 2020; 7:e410-e421. [PMID: 32078815 DOI: 10.1016/s2352-3018(20)30001-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 12/23/2019] [Accepted: 01/03/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Current efficacy studies of a mosaic HIV-1 prophylactic vaccine require four vaccination visits over one year, which is a complex regimen that could prove challenging for vaccine delivery at the community level, both for recipients and clinics. In this study, we evaluated the safety, tolerability, and immunogenicity of shorter, simpler regimens of trivalent Ad26.Mos.HIV expressing mosaic HIV-1 Env/Gag/Pol antigens combined with aluminium phosphate-adjuvanted clade C gp140 protein. METHODS We did this randomised, double-blind, placebo-controlled phase 1 trial (IPCAVD010/HPX1002) at Beth Israel Deaconess Medical Center in Boston, MA, USA. We included healthy, HIV-uninfected participants (aged 18-50 years) who were considered at low risk for HIV infection and had not received any vaccines in the 14 days before study commencement. We randomly assigned participants via a computer-generated randomisation schedule and interactive web response system to one of three study groups (1:1:1) testing different regimens of trivalent Ad26.Mos.HIV (5 × 1010 viral particles per 0·5 mL) combined with 250 μg adjuvanted clade C gp140 protein. They were then assigned to treatment or placebo subgroups (5:1) within each of the three main groups. Participants and investigators were masked to treatment allocation until the end of the follow-up period. Group 1 received Ad26.Mos.HIV alone at weeks 0 and 12 and Ad26.Mos.HIV plus adjuvanted gp140 at weeks 24 and 48. Group 2 received Ad26.Mos.HIV plus adjuvanted gp140 at weeks 0, 12, and 24. Group 3 received Ad26.Mos.HIV alone at week 0 and Ad26.Mos.HIV plus adjuvanted gp140 at weeks 8 and 24. Participants in the control group received 0·5 mL of 0·9% saline. All study interventions were administered intramuscularly. The primary endpoints were Env-specific binding antibody responses at weeks 28, 52, and 72 and safety and tolerability of the vaccine regimens for 28 days after the injection. All participants who received at least one vaccine dose or placebo were included in the safety analysis; immunogenicity was analysed using the per-protocol population. The IPCAVD010/HPX1002 trial is registered with ClinicalTrials.gov, NCT02685020. We also did a parallel preclinical study in rhesus monkeys to test the protective efficacy of the shortened group 3 regimen. FINDINGS Between March 7, 2016, and Aug 19, 2016, we randomly assigned 36 participants to receive at least one dose of study vaccine or placebo, ten to each vaccine group and two to the corresponding placebo group. 30 (83%) participants completed the full study, and six (17%) discontinued it prematurely because of loss to follow-up, withdrawal of consent, investigator decision, and an unrelated death from a motor vehicle accident. The two shortened regimens elicited comparable antibody titres against autologous clade C Env at peak immunity to the longer, 12-month regimen: geometric mean titre (GMT) 41 007 (95% CI 17 959-93 636) for group 2 and 49 243 (29 346-82 630) for group 3 at week 28 compared with 44 590 (19 345-102 781) for group 1 at week 52). Antibody responses remained increased (GMT >5000) in groups 2 and 3 at week 52 but were highest in group 1 at week 72. Antibody-dependent cellular phagocytosis, Env-specific IgG3, tier 1A neutralising activity, and broad cellular immune responses were detected in all groups. All vaccine regimens were well tolerated. Mild-to-moderate pain or tenderness at the injection site was the most commonly reported solicited local adverse event, reported by 28 vaccine recipients (93%) and two placebo recipients (33%). Grade 3 solicited systemic adverse events were reported by eight (27%) vaccine recipients and no placebo recipients; the most commonly reported grade 3 systemic symptoms were fatigue, myalgia, and chills. The shortened group 3 regimen induced comparable peak immune responses in 30 rhesus monkeys as in humans and resulted in an 83% (95% CI 38·7-95, p=0·004 log-rank test) reduction in per-exposure acquisition risk after six intrarectal challenges with SHIV-SF162P3 at week 54, more than 6 months after final vaccination. INTERPRETATION Short, 6-month regimens of a mosaic HIV-1 prophylactic vaccine elicited robust HIV-specific immune responses that were similar to responses elicited by a longer, 12-month schedule. Preclinical data showed partial protective efficacy of one of the short vaccine regimens in rhesus monkeys. Further clinical studies are required to test the suitability of the shortened vaccine regimens in humans. Such shortened regimens would be valuable to increase vaccine delivery at the community level, particularly in resource-limited settings. FUNDING Ragon Institute (Massachusetts General Hospital, Massachusetts Institute of Technology, and Harvard University; Cambridge, MA, USA) and Janssen Vaccines & Prevention (Leiden, Netherlands).
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Affiliation(s)
- Kathryn E Stephenson
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA; Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA
| | - Frank Wegmann
- Janssen Vaccines & Prevention BV, Leiden, Netherlands
| | - Frank Tomaka
- Janssen Research & Development, Titusville, NJ, USA
| | - Stephen R Walsh
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - C Sabrina Tan
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Ludo Lavreys
- Janssen Research & Development, Titusville, NJ, USA
| | - Jessica L Ansel
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Diane G Kanjilal
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Kate Jaegle
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Joseph P Nkolola
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Lauren Peter
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Rachel Fogel
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Connor Bradshaw
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Anna Tyler
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Tatenda Makoni
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Lisa Howe
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Darla Quijada
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Abishek Chandrashekar
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Esther A Bondzie
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Erica N Borducchi
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Katherine E Yanosick
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | | | - Steven Nijs
- Janssen Vaccines & Prevention BV, Leiden, Netherlands
| | - Carla Truyers
- Janssen Vaccines & Prevention BV, Leiden, Netherlands
| | | | - Roland C Zahn
- Janssen Vaccines & Prevention BV, Leiden, Netherlands
| | - Michael S Seaman
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Galit Alter
- Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA
| | | | | | | | - Dan H Barouch
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Boston, MA, USA; Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA.
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Valliyott L, Dungdung R, Pilankatta R. Semi-quantification of antibody-dependent enhancement (ADE) in the uptake of Adenovirus serotype 5 into THP-1 cells. Anal Biochem 2020; 591:113568. [PMID: 31881180 DOI: 10.1016/j.ab.2019.113568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 12/18/2019] [Accepted: 12/23/2019] [Indexed: 12/17/2022]
Abstract
Replication defective recombinant Ad5 vectors (rAdV5) are extensively explored for its applications in gene therapy and vaccine delivery. Ad5 enter into monocytes and macrophages through CAR independent route as an immune complex termed as antibody-dependent enhancement (ADE). We developed an effective method for estimating the ADE of rAdV5 encoding GFP (rAdV5-GFP) into THP-1 cells, using fluorimetric semi-quantification of GFP. Initially, twenty numbers of human sera samples were screened in HeLa cells for anti-Ad5 antibody titer using neutralization assay. Uptake of rAdV5-GFP in THP-1 cells was observed only after pre-incubation with the serially diluted human sera which are attributed to ADE. The optimal dilution which showed the maximum GFP expression as per the fluorescence microscopic analysis in THP-1 cells was used for further analysis. Fluorimetric analysis of the THP-1 cell lysate showed a maximum GFP intensity of 17058 RFU, which was equivalent to the 0.397 pmoles of Alexa Fluor 488 under the same experimental condition. Similarly, immunoblot analysis of GFP in THP-1 cell lysate and HeLa cell lysate confirmed the entry of rAdV5-GFP into the cells. The assay can serve as a platform for understanding the molecular events involved in ADE for the uptake of viruses into immune cells.
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Affiliation(s)
- Lathika Valliyott
- Department of Biochemistry and Molecular Biology, School of Biological Sciences, Krishna Block, Central University of Kerala, Periya, Kasargod, Kerala, 671316, India
| | - Ranjeet Dungdung
- Department of Biochemistry and Molecular Biology, School of Biological Sciences, Krishna Block, Central University of Kerala, Periya, Kasargod, Kerala, 671316, India
| | - Rajendra Pilankatta
- Department of Biochemistry and Molecular Biology, School of Biological Sciences, Krishna Block, Central University of Kerala, Periya, Kasargod, Kerala, 671316, India.
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Adenovectors encoding RSV-F protein induce durable and mucosal immunity in macaques after two intramuscular administrations. NPJ Vaccines 2019; 4:54. [PMID: 31885877 PMCID: PMC6925274 DOI: 10.1038/s41541-019-0150-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 11/20/2019] [Indexed: 12/20/2022] Open
Abstract
Respiratory Syncytial Virus (RSV) can cause severe respiratory disease, yet a licensed vaccine is not available. We determined the immunogenicity of two homologous and one heterologous intramuscular prime-boost vaccination regimens using replication-incompetent adenoviral vectors of human serotype 26 and 35 (Ad26 and Ad35), expressing a prototype antigen based on the wild-type fusion (F) protein of RSV strain A2 in adult, RSV-naive cynomolgus macaques. All regimens induced substantial, boostable antibody responses that recognized the F protein in pre- and postfusion conformation, neutralized multiple strains of RSV, and persisted for at least 80 weeks. Vaccination induced durable systemic RSV-F-specific T-cell responses characterized mainly by CD4+ T cells expressing Th1-type cytokines, as well as RSV-F-specific CD4+ and CD8+ T cells, IgG, and IgA in the respiratory tract. Intramuscular immunization with Ad26 and 35 vectors thus is a promising approach for the development of an optimized RSV vaccine expected to induce long-lasting humoral and cellular immune responses that distribute systemically and to mucosal sites.
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Zoulim F, Fournier C, Habersetzer F, Sprinzl M, Pol S, Coffin CS, Leroy V, Ma M, Wedemeyer H, Lohse AW, Thimme R, Lugardon K, Martin P, Bastien B, Sansas B, Adda N, Halluard C, Bendjama K, Brandely M, Inchauspé G. Safety and immunogenicity of the therapeutic vaccine TG1050 in chronic hepatitis B patients: a phase 1b placebo-controlled trial. Hum Vaccin Immunother 2019; 16:388-399. [PMID: 31373537 PMCID: PMC7158919 DOI: 10.1080/21645515.2019.1651141] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Treatment of chronic hepatitis B (CHB) typically requires life-long administration of drugs. Cohort and pre-clinical studies have established the link between a functional T-cell-mounted immunity and resolution of infection. TG1050 is an adenovirus 5-based vaccine that expresses HBV polymerase and domains of core and surface antigen and has shown immunogenicity and antiviral effects in mice. We performed a phase 1 clinical trial to assess safety and explore immunogenicity and early efficacy of TG1050 in CHB patients. This randomized, double blind, placebo-controlled study included two sequential phases: one single dose cohort (SD, n = 12) and one multiple (3) doses cohort (MD, n = 36). Patients, virally suppressed under nucleoside(d)tide analog NUC therapy, were randomized 1:1:1 across 3 dose levels (DL) and assigned to receive 109, 1010, 1011 virus particles (vp) of TG1050 and then randomized within each DL to placebo (3:1 and 9:3 vaccines/placebo in each DL, respectively, for the SD and MD cohorts). Cellular (ELISPOT) and antibody responses (anti-Adenovirus), as well as evolution of circulating HBsAg and HBcrAg, were monitored. All doses were well tolerated in both cohorts, without severe adverse event. TG1050 was capable to induce IFN-γ producing T-cells targeting 1 to 3 encoded antigens, in particular at the 1010vp dose. Overall, minor decreases of HBsAg were observed while a number of vaccinees reached unquantifiable HBcrAg by end of the study. In CHB patients under NUC, TG1050 exhibited a good safety profile and was capable to induce HBV-specific cellular immune response. These data support further clinical evaluation, especially in combination studies.
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Affiliation(s)
- Fabien Zoulim
- Service d'hépato-Gastroentérologie, Hospices Civils de Lyon, Hôpital de la Croix Rousse, Lyon, France
| | | | | | - Martin Sprinzl
- Medizinische Klinik und Poliklinik, Johannes Gutenberg Universität, Mainz, Germany
| | - Stanislas Pol
- Service Gastroentérologie et Hépatologie, Hôpital Cochin, Paris, France
| | - Carla S Coffin
- Liver Unit, Division of Gastroenterology and Hepatology, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - Vincent Leroy
- Service d'Hépato-Gastroentérologie, CHU, Grenoble, France
| | - Mang Ma
- Faculty of Medicine and Dentistry, Gastroenterology and Hepatology, Northern Alberta Clinical Trials and Research Centre, Edmonton, Canada
| | - Heiner Wedemeyer
- Klinik für Gastroenterologie, Hepatologie und Endokrinologie, Medizinische Hochschule Hannover, Hannover, Germany
| | - Ansgar W Lohse
- I. Department of Medicine, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Robert Thimme
- Uniklinik, Klinik für Innere Medizin II, Freiburg, Germany
| | - Karine Lugardon
- Deptartment Affaires Médicales, Reseach, Project, Transgene SA, Illkirch, France
| | - Perrine Martin
- Deptartment Maladies Infectieuses, Transgene SA, Lyon, France
| | - Bérangère Bastien
- Deptartment Affaires Médicales, Reseach, Project, Transgene SA, Illkirch, France
| | - Benoit Sansas
- Deptartment Affaires Médicales, Reseach, Project, Transgene SA, Illkirch, France
| | - Nathalie Adda
- Deptartment Affaires Médicales, Reseach, Project, Transgene SA, Illkirch, France
| | - Celine Halluard
- Deptartment Affaires Médicales, Reseach, Project, Transgene SA, Illkirch, France
| | - Kaïdre Bendjama
- Deptartment Affaires Médicales, Reseach, Project, Transgene SA, Illkirch, France
| | - Maud Brandely
- Deptartment Affaires Médicales, Reseach, Project, Transgene SA, Illkirch, France
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Characterization of a replication-competent vector encoding DsRed based on a human adenovirus type 4 a-like strain. Virus Res 2019; 270:197662. [PMID: 31301331 DOI: 10.1016/j.virusres.2019.197662] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 06/04/2019] [Accepted: 07/09/2019] [Indexed: 02/06/2023]
Abstract
Human adenovirus type 4 (HAdV4) is an etiological agent of acute respiratory disease (ARD) in pediatric and adult patients. HAdV4 strains can be divided into two major genomic clusters, namely prototype (p)-like viruses and a-like viruses. Here, the complete genome sequence of HAdV4 strain GZ01, isolated from a child with ARD in southern China, is first reported and analyzed. This strain was determined to be of the 4a1 genome-type based on in silico restriction profiles. Then, a replication-competent rAd4DsRed virus, containing the HAdV4 GZ01 infectious genome and expressing the reporter molecule DsRed, was generated and characterized. Recombinant rAd4DsRed can infect AD293, hamster, and mouse cells in which DsRed protein was expressed. No changes in antigenicity and genome replication were detected for rAd4DsRed and wild-type HAdV4. Mice immunized with rAd4DsRed was elicited a marked antibody response to DsRed. A rapid method of testing neutralizing antibodies against HAdV3 and HAdV4 was also established using a mixture of rAd4DsRed and rAd3EGFP. Our results provide the foundation to develop HAdV4 vaccines, potential vector platforms for vaccine and gene therapy, and rapid methods for serological and antiviral screening.
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Mennechet FJD, Paris O, Ouoba AR, Salazar Arenas S, Sirima SB, Takoudjou Dzomo GR, Diarra A, Traore IT, Kania D, Eichholz K, Weaver EA, Tuaillon E, Kremer EJ. A review of 65 years of human adenovirus seroprevalence. Expert Rev Vaccines 2019; 18:597-613. [PMID: 31132024 DOI: 10.1080/14760584.2019.1588113] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Introduction: Human adenovirus (HAdV)-derived vectors have been used in numerous pre-clinical and clinical trials during the last 40 years. Current research in HAdV-based vaccines focuses on improving transgene immunogenicity and safety. Because pre-existing humoral immunity against HAdV types correlate with reduced vaccine efficacy and safety, many groups are exploring the development of HAdV types vectors with lower seroprevalence. However, global seroepidemiological data are incomplete. Areas covered: The goal of this review is to centralize 65 years of research on (primarily) HAdV epidemiology. After briefly addressing adenovirus biology, we chronical HAdV seroprevalence studies and highlight major milestones. Finally, we analyze data from about 50 studies with respect to HAdVs types that are currently used in the clinic, or are in the developmental pipeline. Expert opinion: Vaccination is among the most efficient tools to prevent infectious disease. HAdV-based vaccines have undeniable potential, but optimization is needed and antivector immunity remains a challenge if the same vectors are to be administrated to different populations. Here, we identify gaps in our knowledge and the need for updated worldwide epidemiological data.
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Affiliation(s)
- Franck J D Mennechet
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France
| | - Océane Paris
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France
| | - Aline Raissa Ouoba
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France.,b UMR 1058, Pathogenesis and Control of Chronic Infections , INSERM - University of Montpellier - Establishment Français du Sang - Centre Hospitalier Universitaire de Montpellier , Montpellier , France.,c Département des sciences et de la recherche clinique , Centre Muraz , Bobo-Dioulasso , Burkina Faso
| | - Sofia Salazar Arenas
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France
| | - Sodiomon B Sirima
- d Centre National de Recherche et de Formation sur le Paludisme , Ouagadougou , Burkina Faso.,e Groupe de Recherche Action en Santé (GRAS) , Ouagadougou , Burkina Faso
| | - Guy R Takoudjou Dzomo
- f Complexe Hospitalo Universitaire « Le Bon Samaritain » , N'Djamena , Republic of Chad
| | - Amidou Diarra
- d Centre National de Recherche et de Formation sur le Paludisme , Ouagadougou , Burkina Faso
| | - Isidore T Traore
- c Département des sciences et de la recherche clinique , Centre Muraz , Bobo-Dioulasso , Burkina Faso
| | - Dramane Kania
- c Département des sciences et de la recherche clinique , Centre Muraz , Bobo-Dioulasso , Burkina Faso
| | - Karsten Eichholz
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France
| | - Eric A Weaver
- g University of Nebraska-Lincoln, School of Biological Sciences , Lincoln , NE , USA
| | - Edouard Tuaillon
- b UMR 1058, Pathogenesis and Control of Chronic Infections , INSERM - University of Montpellier - Establishment Français du Sang - Centre Hospitalier Universitaire de Montpellier , Montpellier , France
| | - Eric J Kremer
- a Institut de Génétique Moléculaire de Montpellier , University of Montpellier - CNRS , Montpellier , France
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Mooney R, Majid AA, Batalla-Covello J, Machado D, Liu X, Gonzaga J, Tirughana R, Hammad M, Lesniak MS, Curiel DT, Aboody KS. Enhanced Delivery of Oncolytic Adenovirus by Neural Stem Cells for Treatment of Metastatic Ovarian Cancer. MOLECULAR THERAPY-ONCOLYTICS 2018; 12:79-92. [PMID: 30719498 PMCID: PMC6350263 DOI: 10.1016/j.omto.2018.12.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 12/06/2018] [Indexed: 12/23/2022]
Abstract
Oncolytic virotherapy is a promising approach for treating recurrent and/or drug-resistant ovarian cancer. However, its successful application in the clinic has been hampered by rapid immune-mediated clearance or neutralization of the virus, which reduces viral access to tumor foci. To overcome this barrier, patient-derived mesenchymal stem cells have been used to deliver virus to tumors, but variability associated with autologous cell isolations prevents this approach from being broadly clinically applicable. Here, we demonstrate the ability of an allogeneic, clonal neural stem cell (NSC) line (HB1.F3.CD21) to protect oncolytic viral cargo from neutralizing antibodies within patient ascites fluid and to deliver it to tumors within preclinical peritoneal ovarian metastases models. The viral payload used is a conditionally replication-competent adenovirus driven by the survivin promoter (CRAd-S-pk7). Because the protein survivin is highly expressed in ovarian cancer, but not in normal differentiated cells, viral replication should occur selectively in ovarian tumor cells. We found this viral agent was effective against cisplatin-resistant ovarian tumors and could be used as an adjunct treatment with cisplatin to decrease tumor burden without increasing toxicity. Collectively, our data suggest NSC-delivered CRAd-S-pk7 virotherapy holds promise for improving clinical outcome, reducing toxicities, and improving quality of life for patients with advanced ovarian cancer.
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Affiliation(s)
- Rachael Mooney
- Department of Stem Cell & Developmental Biology, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA
| | - Asma Abdul Majid
- Department of Stem Cell & Developmental Biology, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA
| | - Jennifer Batalla-Covello
- Department of Stem Cell & Developmental Biology, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA
| | - Diana Machado
- Department of Stem Cell & Developmental Biology, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA
| | - Xueli Liu
- Department of Information Sciences, Division of Biostatistics at the Beckman Research Institute, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA
| | - Joanna Gonzaga
- Department of Stem Cell & Developmental Biology, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA
| | - Revathiswari Tirughana
- Department of Stem Cell & Developmental Biology, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA
| | - Mohamed Hammad
- Department of Stem Cell & Developmental Biology, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA
| | - Maciej S Lesniak
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, 676 N. St. Clair Street, Suite 2210, Chicago, IL 60611, USA
| | - David T Curiel
- Division of Cancer Biology and Biologic Therapeutic Center, Department of Radiation Oncology, School of Medicine, Washington University, 660 South Euclid Avenue, Campus Box 8224, St. Louis, MO 63110, USA
| | - Karen S Aboody
- Department of Stem Cell & Developmental Biology, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA.,Division of Neurosurgery, City of Hope, 1500 East Duarte Road, Duarte, CA 91010, USA
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Wang B, Li J, Wu S, Chen Y, Zhang Z, Zhai Y, Guo Q, Zhang J, Song X, Zhao Z, Hou L, Chen W. Seroepidemiological investigation of HAdV-4 infection among healthy adults in China and in Sierra Leone, West Africa. Emerg Microbes Infect 2018; 7:200. [PMID: 30514848 PMCID: PMC6279822 DOI: 10.1038/s41426-018-0206-y] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 10/31/2018] [Accepted: 11/11/2018] [Indexed: 12/31/2022]
Abstract
An apparent increase in the frequency of human adenovirus type 4 (HAdV-4) infections among general populations has been observed over the past 10 years. However, available epidemiological data that may reflect previous viral circulation and assist in predicting potential outbreaks are sparse, particularly in mainland China and Africa. In this study, a convenient neutralization assay for use in the surveillance of historical HAdV-4 infections was established based on a recombinant luciferase-expressing virus. Subsequently, the neutralizing antibodies (nAbs) of 1013 healthy adult serum samples from China and Sierra Leone were evaluated. Our results showed that over 50% of the participants from China and nearly 70% of donors from Sierra Leone had detectable nAbs against HAdV-4 despite the few infection cases officially reported in these regions. Furthermore, the prevalence of nAbs to HAdV-4 is lower than that to HAdV-5, and both varied by geographic location. In addition, the seropositive rates of both HAdV-4 and HAdV-5 nAbs increased with age. However, the nAbs stimulated by HAdV-4 remained stable at low (≤200) levels among the different age groups, whereas moderate (201–1000) or high (>1000) nAb levels were produced by HAdV-5 and tended to decrease with age. These results elucidate the human humoral immune response against HAdV-4 and revealed that this virus may be an underestimated causative agent of respiratory disease among adults in China and West Africa, demonstrating the importance of HAdV-4 surveillance and providing useful insights for the future development of HAdV-4-based vaccines.
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Affiliation(s)
- Busen Wang
- Beijing Institute of Biotechnology, 20 East Street, Beijing, 100071, China
| | - Jianhua Li
- Beijing Institute of Biotechnology, 20 East Street, Beijing, 100071, China
| | - Shipo Wu
- Beijing Institute of Biotechnology, 20 East Street, Beijing, 100071, China
| | - Yi Chen
- Beijing Institute of Biotechnology, 20 East Street, Beijing, 100071, China
| | - Zhe Zhang
- Beijing Institute of Biotechnology, 20 East Street, Beijing, 100071, China
| | - Yanfang Zhai
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, School of Life Sciences, Peking University, 5 Yiheyuan Road, Beijing, 100871, China
| | - Qiang Guo
- Beijing Institute of Biotechnology, 20 East Street, Beijing, 100071, China
| | - Jinlong Zhang
- Beijing Institute of Biotechnology, 20 East Street, Beijing, 100071, China
| | - Xiaohong Song
- Beijing Institute of Biotechnology, 20 East Street, Beijing, 100071, China
| | - Zhenghao Zhao
- Beijing Institute of Biotechnology, 20 East Street, Beijing, 100071, China
| | - Lihua Hou
- Beijing Institute of Biotechnology, 20 East Street, Beijing, 100071, China.
| | - Wei Chen
- Beijing Institute of Biotechnology, 20 East Street, Beijing, 100071, China.
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Immunogenicity and Cross-Reactivity of Rhesus Adenoviral Vectors. J Virol 2018; 92:JVI.00159-18. [PMID: 29563285 PMCID: PMC5952169 DOI: 10.1128/jvi.00159-18] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2018] [Accepted: 03/12/2018] [Indexed: 01/23/2023] Open
Abstract
Adenovirus (Ad) vectors are being investigated as vaccine candidates, but baseline antivector immunity exists in human populations to both human Ad (HuAd) and chimpanzee Ad (ChAd) vectors. In this study, we investigated the immunogenicity and cross-reactivity of a panel of recently described rhesus adenoviral (RhAd) vectors. RhAd vectors elicited T cells with low exhaustion markers and robust anamnestic potential. Moreover, RhAd vector immunogenicity was unaffected by high levels of preexisting anti-HuAd immunity. Both HuAd/RhAd and RhAd/RhAd prime-boost vaccine regimens were highly immunogenic, despite a degree of cross-reactive neutralizing antibodies (NAbs) between phylogenetically related RhAd vectors. We observed extensive vector-specific cross-reactive CD4 T cell responses and more limited CD8 T cell responses between RhAd and HuAd vectors, but the impact of vector-specific cellular responses was far less than that of vector-specific NAbs. These data suggest the potential utility of RhAd vectors and define novel heterologous prime-boost strategies for vaccine development. IMPORTANCE To date, most adenoviral vectors developed for vaccination have been HuAds from species B, C, D, and E, and human populations display moderate to high levels of preexisting immunity. There is a clinical need for new adenoviral vectors that are not hindered by preexisting immunity. Moreover, the development of RhAd vector vaccines expands our ability to vaccinate against multiple pathogens in a population that may have received other HuAd or ChAd vectors. We evaluated the immunogenicity and cross-reactivity of RhAd vectors, which belong to the poorly described adenovirus species G. These vectors induced robust cellular and humoral immune responses and were not hampered by preexisting anti-HuAd vector immunity. Such properties make RhAd vectors attractive as potential vaccine vectors.
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Therapeutic Efficacy of Vectored PGT121 Gene Delivery in HIV-1-Infected Humanized Mice. J Virol 2018; 92:JVI.01925-17. [PMID: 29321310 PMCID: PMC5972893 DOI: 10.1128/jvi.01925-17] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 01/04/2018] [Indexed: 01/15/2023] Open
Abstract
Broadly neutralizing antibodies (bNAbs) are being explored for HIV-1 prevention and cure strategies. However, administration of purified bNAbs poses challenges in resource-poor settings, where the HIV-1 disease burden is greatest. In vivo vector-based production of bNAbs represents an alternative strategy. We investigated adenovirus serotype 5 (Ad5) and adeno-associated virus serotype 1 (AAV1) vectors to deliver the HIV-1-specific bNAb PGT121 in wild-type and immunocompromised C57BL/6 mice as well as in HIV-1-infected bone marrow-liver-thymus (BLT) humanized mice. Ad5.PGT121 and AAV1.PGT121 produced functional antibody in vivo. Ad5.PGT121 produced PGT121 rapidly within 6 h, whereas AAV1.PGT121 produced detectable PGT121 in serum by 72 h. Serum PGT121 levels were rapidly reduced by the generation of anti-PGT121 antibodies in immunocompetent mice but were durably maintained in immunocompromised mice. In HIV-1-infected BLT humanized mice, Ad5.PGT121 resulted in a greater reduction of viral loads than did AAV1.PGT121. Ad5.PGT121 also led to more-sustained virologic control than purified PGT121 IgG. Ad5.PGT121 afforded more rapid, robust, and durable antiviral efficacy than AAV1.PGT121 and purified PGT121 IgG in HIV-1-infected humanized mice. Further evaluation of vector delivery of HIV-1 bNAbs is warranted, although approaches to prevent the generation of antiantibody responses may also be required. IMPORTANCE Broadly neutralizing antibodies (bNAbs) are being explored for HIV-1 prevention and cure strategies, but delivery of purified antibodies may prove challenging. We investigated adenovirus serotype 5 (Ad5) and adeno-associated virus serotype 1 (AAV1) vectors to deliver the HIV-1-specific bNAb PGT121. Ad5.PGT121 afforded more rapid, robust, and durable antiviral efficacy than AAV1.PGT121 and purified PGT121 IgG in HIV-1-infected humanized mice.
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41
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Rapid Cloning of Novel Rhesus Adenoviral Vaccine Vectors. J Virol 2018; 92:JVI.01924-17. [PMID: 29298888 PMCID: PMC5827402 DOI: 10.1128/jvi.01924-17] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 12/18/2017] [Indexed: 11/20/2022] Open
Abstract
Human and chimpanzee adenovirus vectors are being developed to circumvent preexisting antibodies against common adenovirus vectors such as Ad5. However, baseline immunity to these vectors still exists in human populations. Traditional cloning of new adenovirus vaccine vectors is a long and cumbersome process that takes 2 months or more and that requires rare unique restriction enzyme sites. Here we describe a novel, restriction enzyme-independent method for rapid cloning of new adenovirus vaccine vectors that reduces the total cloning procedure to 1 week. We developed 14 novel adenovirus vectors from rhesus monkeys that can be grown to high titers and that are immunogenic in mice. All vectors grouped with the unusual adenovirus species G and show extremely low seroprevalence in humans. Rapid cloning of novel adenovirus vectors is a promising approach for the development of new vector platforms. Rhesus adenovirus vectors may prove useful for clinical development.IMPORTANCE To overcome baseline immunity to human and chimpanzee adenovirus vectors, we developed 14 novel adenovirus vectors from rhesus monkeys. These vectors are immunogenic in mice and show extremely low seroprevalence in humans. Rhesus adenovirus vectors may prove useful for clinical development.
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Yang WX, Zou XH, Jiang SY, Lu NN, Han M, Zhao JH, Guo XJ, Zhao SC, Lu ZZ. Prevalence of serum neutralizing antibodies to adenovirus type 5 (Ad5) and 41 (Ad41) in children is associated with age and sanitary conditions. Vaccine 2017; 34:5579-5586. [PMID: 27682509 PMCID: PMC7115419 DOI: 10.1016/j.vaccine.2016.09.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Revised: 09/20/2016] [Accepted: 09/21/2016] [Indexed: 12/16/2022]
Abstract
Serum neutralizing antibodies to Ad5 and Ad41 in adults and children were titrated. Prevalence of NAb in children was associated with age and sanitary conditions. NAb titer distribution pattern was very different between Ad5 an Ad41. Ad41 vectored vaccine candidates might have a bright future.
Neutralizing antibody (NAb) can dampen the immunogenicity of adenovirus (Ad) vector-based vaccine. Vector systems based on human adenovirus type 41 (Ad41) have been constructed and used to develop recombinant vaccines. Here, we attempted to study the seroprevalence of NAbs to Ad5 and Ad41 among children and adults in Qinghai province, China. The positive rates (titer ⩾ 40) of Ad5 and Ad41 NAb in adults from Xining city were 75.7% and 94.7%, respectively. The moderate/high-positive rates (titer ⩾ 160) of NAb were quite close between the two viruses in adults (70.4% for Ad5 and 73.5% for Ad41). Age-dependent increase of NAb seroprevalence was observed for both viruses in children. NAb-positive rate of Ad41 reached 50% at 3.3–4.6 years of age for children from Chengxi district, Xining city, approximately 1.5 years earlier than that of Ad5 did. Interestingly, NAb level was also associated with sanitary conditions among young children. For Ad5, 8–15% children (0.2–3.0 years of age) from city or town, where the sanitations were relatively better, had moderate/high-positive NAb, while the same rate was 62% for children from villages. For Ad41, 22% children from city, 47% from town and 88% from villages possessed moderate/high-positive NAb. The possible influence of NAb titer distributions on the application of Ad41-vectored vaccines was discussed in detail. Our results suggested that children from places with poor sanitations should be included for comprehensive Ad NAb seroprevalence studies, and provided insights to the applications of Ad41 vectors.
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Affiliation(s)
- Wei-Xiong Yang
- Qinghai Center for Disease Control and Prevention, Xining, Qinghai 810007, China
| | - Xiao-Hui Zou
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China
| | - Shuang-Ying Jiang
- Qinghai Center for Disease Control and Prevention, Xining, Qinghai 810007, China
| | - Nan-Nan Lu
- Qinghai Center for Disease Control and Prevention, Xining, Qinghai 810007, China
| | - Mei Han
- Qinghai Provincial Kangle Hospital, Xining, Qinghai 810006, China
| | - Jian-Hai Zhao
- Qinghai Center for Disease Control and Prevention, Xining, Qinghai 810007, China
| | - Xiao-Juan Guo
- State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China
| | - Sheng-Cang Zhao
- Qinghai Center for Disease Control and Prevention, Xining, Qinghai 810007, China.
| | - Zhuo-Zhuang Lu
- Qinghai Center for Disease Control and Prevention, Xining, Qinghai 810007, China; State Key Laboratory of Infectious Disease Prevention and Control, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100052, China.
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Çuburu N, Khan S, Thompson CD, Kim R, Vellinga J, Zahn R, Lowy DR, Scheper G, Schiller JT. Adenovirus vector-based prime-boost vaccination via heterologous routes induces cervicovaginal CD8 + T cell responses against HPV16 oncoproteins. Int J Cancer 2017; 142:1467-1479. [PMID: 29159802 DOI: 10.1002/ijc.31166] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 10/12/2017] [Accepted: 11/07/2017] [Indexed: 12/22/2022]
Abstract
Recent advances in immunotherapy against cancer underscore the importance of T lymphocytes and tumor microenvironment, but few vaccines targeting cancer have been approved likely due in part to the dearth of common tumor antigens, insufficient immunogenicity and the evolution of immune evasion mechanisms during the progression to malignancy. Human papillomaviruses (HPVs) are the primary etiologic agents of cervical cancer and progression from persistent HPV-infection to cervical intraepithelial lesions and eventually cancer requires persistent expression of the oncoproteins E6 and E7. This offers the opportunity to specifically target these virus-specific antigens for vaccine-induced clearance of infected cells before cancers develop. Here we have evaluated the immunogenicity of Adenovirus Types 26 and 35 derived vectors expressing a fusion of HPV16 E6 and E7 oncoproteins after intramuscular (IM) and/or intravaginal (Ivag) immunization in mice. The adenovirus vectors were shown to transduce an intact cervicovaginal epithelium. IM prime followed by Ivag boost maximized the induction and trafficking of HPV-specific CD8+ T cells producing IFN-γ and TNF-α to the cervicovaginal tract. Importantly, the cervicovaginal CD8+ T cells expressed CD69 and CD103; hallmarks of intraepithelial tissue-resident memory CD8+ T cells. This prime-boost strategy targeting heterologous locations also induced circulating HPV-specific CD8+ T cell responses. Our study prompts further evaluation of Ivag immunization with adenoviral vectors expressing modified E6 and E7 antigens for therapeutic vaccination against persistent HPV infection and cervical intraepithelial neoplasia.
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Affiliation(s)
- Nicolas Çuburu
- Laboratory of Cellular Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Selina Khan
- Janssen Vaccines & Prevention BV, Leiden, The Netherlands
| | - Cynthia D Thompson
- Laboratory of Cellular Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Rina Kim
- Laboratory of Cellular Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Jort Vellinga
- Janssen Vaccines & Prevention BV, Leiden, The Netherlands
| | - Roland Zahn
- Janssen Vaccines & Prevention BV, Leiden, The Netherlands
| | - Douglas R Lowy
- Laboratory of Cellular Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Gert Scheper
- Janssen Vaccines & Prevention BV, Leiden, The Netherlands
| | - John T Schiller
- Laboratory of Cellular Oncology, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
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44
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Duffy MR, Alonso-Padilla J, John L, Chandra N, Khan S, Ballmann MZ, Lipiec A, Heemskerk E, Custers J, Arnberg N, Havenga M, Baker AH, Lemckert A. Generation and characterization of a novel candidate gene therapy and vaccination vector based on human species D adenovirus type 56. J Gen Virol 2017; 99:135-147. [PMID: 29154744 DOI: 10.1099/jgv.0.000978] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The vectorization of rare human adenovirus (HAdV) types will widen our knowledge of this family and their interaction with cells, tissues and organs. In this study we focus on HAdV-56, a member of human Ad species D, and create ease-of-use cloning systems to generate recombinant HAdV-56 vectors carrying foreign genes. We present in vitro transduction profiles for HAdV-56 in direct comparison to the most commonly used HAdV-5-based vector. In vivo characterizations demonstrate that when it is delivered intravenously (i.v.) HAdV-56 mainly targets the spleen and, to a lesser extent, the lungs, whilst largely bypassing liver transduction in mice. HAdV-56 triggered robust inflammatory and cellular immune responses, with higher induction of IFNγ, TNFα, IL5, IL6, IP10, MCP1 and MIG1 compared to HAdV-5 following i.v. administration. We also investigated its potential as a vaccine vector candidate by performing prime immunizations in mice with HAdV-56 encoding luciferase (HAdV-56-Luc). Direct comparisons were made to HAdV-26, a highly potent human vaccine vector currently in phase II clinical trials. HAdV-56-Luc induced luciferase 'antigen'-specific IFNγ-producing cells and anti-HAdV-56 neutralizing antibodies in Balb/c mice, demonstrating a near identical profile to that of HAdV-26. Taken together, the data presented provides further insight into human Ad receptor/co-receptor usage, and the first report on HAdV-56 vectors and their potential for gene therapy and vaccine applications.
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Affiliation(s)
- Margaret R Duffy
- Batavia Biosciences BV, Leiden, The Netherlands.,Present address: Department of Oncology, University of Oxford, Oxford, UK
| | - Julio Alonso-Padilla
- Institute of Cardiovascular and Medical Sciences, College of Medicine, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.,Present address: Barcelona Institute for Global Health (ISGlobal), Centre for Research in International Health (CRESIB), Hospital Clinic de Barcelona -University of Barcelona, Barcelona, Spain
| | - Lijo John
- Division of Virology, Department of Clinical Microbiology, Umeå University, Sweden
| | - Naresh Chandra
- Division of Virology, Department of Clinical Microbiology, Umeå University, Sweden
| | - Selina Khan
- Viral Vaccine Discovery and Early Development, Janssen Vaccines and Prevention BV, Leiden, The Netherlands
| | | | | | | | - Jerome Custers
- Viral Vaccine Discovery and Early Development, Janssen Vaccines and Prevention BV, Leiden, The Netherlands
| | - Niklas Arnberg
- Division of Virology, Department of Clinical Microbiology, Umeå University, Sweden
| | | | - Andrew H Baker
- Present address: Centre for Cardiovascular Sciences, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.,Institute of Cardiovascular and Medical Sciences, College of Medicine, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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45
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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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46
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Xiao S, Liu Z, Deng R, Li C, Fu S, Chen G, Zhang X, Ke F, Ke S, Yu X, Wang S, Zhong Z. Aptamer-mediated gene therapy enhanced antitumor activity against human hepatocellular carcinoma in vitro and in vivo. J Control Release 2017; 258:130-145. [PMID: 28522194 DOI: 10.1016/j.jconrel.2017.05.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 05/13/2017] [Indexed: 02/07/2023]
Abstract
A recombinant adenovirus carrying the tumor suppressor gene PTEN (Ad5-PTEN) is an effective antitumor agent against liver cancer. But the application of Ad5-PTEN has been greatly hindered by its auto-immunogenicity, non-specific toxicity to normal tissues, as well as poor stability in blood stream because of neutralizing antibody. Epithelial cell adhesion molecule (EpCAM) is over-expressed in most solid tumors and it has been identified to be a cancer stem cell surface marker in liver cancer. An RNA aptamer EpDT3 could specially bind with EpCAM and target EpCAM-positive cells. Therefore, we hypothesized that developing a novel gene delivery system of EpDT3-modified Ad5-PTEN could overcome the disadvantages of naked Ad5-PTEN and enhance the antitumor effect on hepatocellular carcinoma. We took polyethylene glycol (PEG) as a linker to conjugate EpDT3 with Ad5-PTEN to prepare EpDT3-PEG-Ad5-PTEN (EPAP) by simple chemical synthesis method. We found that the stability of this novel gene delivery system in human blood serum increased about 16-fold compared to the naked adenovirus. Meanwhile, EPAP enhanced gene expression and cellular uptake in HepG2 cells, and showed significant inhibition in cell proliferation and cell migration against hepatocellular carcinoma cells HepG2 while showing no cytotoxicity to normal liver cells L-02, compared with Ad5-PTEN. Importantly, EPAP could induce cell apoptosis and presented superior antitumor activity against aggressive HepG2 xenograft in nude mice but showed no obvious toxicity to the tested mice at the therapy concentration. In conclusion, EpCAM aptamer EpDT3 could significantly enhance the antitumor effect of Ad5-PTEN with high binding ability to EpCAM-positive cells HepG2.
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Affiliation(s)
- Shuangli Xiao
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Zhongbing Liu
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Ruolan Deng
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Chunhong Li
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Shaozhi Fu
- Department of Oncology, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Guilan Chen
- The Key Laboratory of Medical Electrophysiology of Ministry of Education, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Xiaoqin Zhang
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Famin Ke
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Siyun Ke
- Luzhou Senior High School, Luzhou, Sichuan 646000, China
| | - Xin Yu
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Shurong Wang
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Zhirong Zhong
- Department of Pharmaceutical Sciences, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, China.
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47
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Li Q, Liu Q, Huang W, Song A, Zhao C, Wu J, Wang Y. Neutralizing antibodies against adenovirus type 2 in normal and HIV-1-infected subjects: Implications for use of Ad2 vectors in vaccines. Hum Vaccin Immunother 2017; 13:1-8. [PMID: 28301274 DOI: 10.1080/21645515.2017.1281487] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Pre-existing neutralizing antibodies (NAbs) directed against vaccine vectors have attracted considerable research attention. Therefore, our aim was to establish a high-throughput economical neutralization assay to investigate the epidemiology of adenovirus type 2 (Ad2)-specific immunity in China and developed countries, including in a Chinese Human immunodeficiency virus (HIV)-1-infected population, and to guide the application of Ad2-vectored vaccines. We established a FluoroSpot-based anti-Ad2-virus neutralization assay using a recombinant replication-deficient Ad2 that expresses enhanced green fluorescent protein and standardized the critical parameters, including the choice of cell line, cell concentration, viral infective dose, and incubation time. The sera of 561 healthy individuals from China and developed countries and from 230 HIV-1-infected Chinese individuals were screened with this assay for Nabs against Ad2. The prevalence of anti-Ad2 NAbs was high in both China (92.2%) and developed countries (86.9%). Of the Ad2-seropositive individuals, 64.6% in China and 77.4% in developed countries had high NAb titers (> 810). The frequency of anti-Ad2 NAbs was higher in Anhui (97.5%) than in Beijing (88.7%). Their prevalence differed significantly according to age in Beijing, but not in Anhui Province, but by sex in neither province. Ad2 seroprevalence was as high among HIV-1-infected individuals (88.7%) as among healthy individuals (92.2%) in China. In conclusion, a simple, intuitive, high-throughput, economical fluorescence-based neutralization assay was developed to determine anti-Ad2 NAbs titers. Ad2 exposure was high in both healthy and HIV-1-infected populations in China, so vectors based on Ad2 may be inappropriate for human vaccines.
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Affiliation(s)
- Qianqian Li
- a Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Key Laboratory of the Ministry of Health for Research on Quality and Standardization of Biotech Products , National Institutes for Food and Drug Control , Beijing , China
| | - Qiang Liu
- a Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Key Laboratory of the Ministry of Health for Research on Quality and Standardization of Biotech Products , National Institutes for Food and Drug Control , Beijing , China
| | - Weijing Huang
- a Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Key Laboratory of the Ministry of Health for Research on Quality and Standardization of Biotech Products , National Institutes for Food and Drug Control , Beijing , China
| | - Aijing Song
- a Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Key Laboratory of the Ministry of Health for Research on Quality and Standardization of Biotech Products , National Institutes for Food and Drug Control , Beijing , China
| | - Chenyan Zhao
- a Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Key Laboratory of the Ministry of Health for Research on Quality and Standardization of Biotech Products , National Institutes for Food and Drug Control , Beijing , China
| | - Jiajing Wu
- a Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Key Laboratory of the Ministry of Health for Research on Quality and Standardization of Biotech Products , National Institutes for Food and Drug Control , Beijing , China
| | - Youchun Wang
- a Division of HIV/AIDS and Sex-transmitted Virus Vaccines, Key Laboratory of the Ministry of Health for Research on Quality and Standardization of Biotech Products , National Institutes for Food and Drug Control , Beijing , China
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48
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Li JX, Hou LH, Meng FY, Wu SP, Hu YM, Liang Q, Chu K, Zhang Z, Xu JJ, Tang R, Wang WJ, Liu P, Hu JL, Luo L, Jiang R, Zhu FC, Chen W. Immunity duration of a recombinant adenovirus type-5 vector-based Ebola vaccine and a homologous prime-boost immunisation in healthy adults in China: final report of a randomised, double-blind, placebo-controlled, phase 1 trial. LANCET GLOBAL HEALTH 2017; 5:e324-e334. [DOI: 10.1016/s2214-109x(16)30367-9] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 11/24/2016] [Accepted: 11/30/2016] [Indexed: 12/21/2022]
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49
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Zhu FC, Wurie AH, Hou LH, Liang Q, Li YH, Russell JBW, Wu SP, Li JX, Hu YM, Guo Q, Xu WB, Wurie AR, Wang WJ, Zhang Z, Yin WJ, Ghazzawi M, Zhang X, Duan L, Wang JZ, Chen W. Safety and immunogenicity of a recombinant adenovirus type-5 vector-based Ebola vaccine in healthy adults in Sierra Leone: a single-centre, randomised, double-blind, placebo-controlled, phase 2 trial. Lancet 2017; 389:621-628. [PMID: 28017399 DOI: 10.1016/s0140-6736(16)32617-4] [Citation(s) in RCA: 139] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 10/19/2016] [Accepted: 11/15/2016] [Indexed: 11/18/2022]
Abstract
BACKGROUND A recombinant adenovirus type-5 vector-based vaccine expressing the glycoprotein of Ebola Zaire Makona variant showed good safety and immunogenicity in a phase 1 trial of healthy Chinese adults. We aimed to assess the safety and immunogenicity of this vaccine in healthy adults in Sierra Leone and to determine the optimal dose. METHODS We did a single-centre, randomised, double-blind, placebo-controlled, phase 2 clinical trial at Sierra Leone-China Friendship Hospital, Freetown, Sierra Leone. We recruited healthy adults aged 18-50 years who were HIV negative, had no history of Ebola virus infection, and had no previous immunisation with other Ebola vaccine candidates. Participants were sequentially enrolled and randomly assigned (2:1:1), by computer-generated block randomisation (block size of eight), to receive the high-dose vaccine (1·6 × 1011 viral particles), low-dose vaccine (8·0 × 1010 viral particles), or placebo (containing only vaccine excipients, with no viral particles). Participants, investigators, and study staff (except two study pharmacists) were masked from treatment allocation. The primary safety outcome was occurrence of solicited adverse reactions within 7 days of vaccination, analysed by intention to treat. The primary immunogenicity outcome was glycoprotein-specific antibody responses at days 14, 28, and 168 after vaccination, analysed in all vaccinated participants who had blood samples drawn for antibody tests. The trial is registered with the Pan African Clinical Trials Registry, number PACTR201509001259869, and is completed. FINDINGS During Oct 10-28, 2015, 500 participants were enrolled and randomly assigned to receive the high-dose vaccine (n=250), low-dose vaccine (n=125), or placebo (n=125). 132 (53%) participants in the high-dose group, 60 (48%) in the low-dose group, and 54 (43%) in the placebo group reported at least one solicited adverse reaction within 7 days of vaccination. Most adverse reactions were mild and self-limiting. Solicited injection-site adverse reactions were significantly more frequent in vaccine recipients (65 [26%] in high-dose group and 31 [25%] in low-dose group) than in those receiving placebo (17 [14%]; p=0·0169). Glycoprotein-specific antibody responses were detected from day 14 onwards (geometric mean titre 1251·0 [95% CI 976·6-1602·5] in low-dose group and 1728·4 [1459·4-2047·0] in high-dose group) and peaked at day 28 (1471·8 [1151·0-1881·8] and 2043·1 [1762·4-2368·4]), but declined quickly in the following months (223·3 [148·2-336·4] and 254·2 [185·0-349·5] at day 168). Geometric mean titres in the placebo group remained around 6·0-6·8 throughout the study period. Three serious adverse events (malaria, gastroenteritis, and one fatal asthma episode) were reported in the high-dose vaccine group, but none was deemed related to the vaccine. INTERPRETATION The recombinant adenovirus type-5 vector-based Ebola vaccine was safe and highly immunogenic in healthy Sierra Leonean adults, and 8·0 × 1010 viral particles was the optimal dose. FUNDING Chinese Ministry of Science and Technology and the National Health and Family Planning Commission, Beijing Institute of Biotechnology, and Tianjin CanSino Biotechnology.
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Affiliation(s)
- Feng-Cai Zhu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Alie H Wurie
- Ministry of Health and Sanitation, Freetown, Sierra Leone
| | - Li-Hua Hou
- Beijing Institute of Biotechnology, Beijing, China
| | - Qi Liang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Yu-Hua Li
- National Institute for Food and Drug Control, Beijing, China
| | | | - Shi-Po Wu
- Beijing Institute of Biotechnology, Beijing, China
| | - Jing-Xin Li
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Yue-Mei Hu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Qiang Guo
- Beijing Institute of Biotechnology, Beijing, China
| | - Wen-Bo Xu
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Abdul R Wurie
- Ministry of Health and Sanitation, Freetown, Sierra Leone
| | - Wen-Juan Wang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Zhe Zhang
- Beijing Institute of Biotechnology, Beijing, China
| | - Wen-Jiao Yin
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Manal Ghazzawi
- Ministry of Health and Sanitation, Freetown, Sierra Leone
| | - Xu Zhang
- Tianjin CanSino Biotechnology, Tianjin, China
| | - Lei Duan
- Tianjin CanSino Biotechnology, Tianjin, China
| | - Jun-Zhi Wang
- National Institute for Food and Drug Control, Beijing, China.
| | - Wei Chen
- Beijing Institute of Biotechnology, Beijing, China.
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50
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Alevizos I, Zheng C, Cotrim AP, Goldsmith CM, McCullagh L, Berkowitz T, Strobl SL, Malyguine A, Kopp WC, Chiorini JA, Nikolov NP, Neely M, Illei GG, Baum BJ. Immune reactivity after adenoviral-mediated aquaporin-1 cDNA transfer to human parotid glands. Oral Dis 2017; 23:337-346. [PMID: 27886428 DOI: 10.1111/odi.12614] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 11/03/2016] [Accepted: 11/16/2016] [Indexed: 01/19/2023]
Abstract
OBJECTIVES The purpose of this study was to examine the humoral and cellular immune reactivity to adenoviral vector (AdhAQP1) administration in the human parotid gland over the first 42 days of a clinical gene therapy trial. METHODS Of eleven treated subjects, five were considered as positive responders (Baum et al, 2012). Herein, we measured serum neutralizing antibody titers, circulating cytotoxic lymphocytes, and lymphocyte proliferation in peripheral blood mononuclear cells. Additionally, after adenoviral vector stimulation of lymphocyte proliferation, we quantified secreted cytokine levels. RESULTS Responders showed little to modest immune reactivity during the first 42 days following gene transfer. Additionally, baseline serum neutralizing antibody titers to serotype 5-adenovirus generally were not predictive of a subject's response to parotid gland administration of AdhAQP1. Cytokine profiling from activated peripheral blood mononuclear cells could not distinguish responders and non-responders. CONCLUSIONS The data are the first to describe immune responses after adenoviral vector administration in a human parotid gland. Importantly, we found that modest (2-3 fold) changes in systemic cell-mediated immune reactivity did not preclude positive subject responses to gene transfer. However, changes beyond that level likely impeded the efficacy of gene transfer.
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Affiliation(s)
- I Alevizos
- Molecular Physiology and Therapeutics Branch, NIDCR, NIH, Bethesda, MD, USA
| | - C Zheng
- Molecular Physiology and Therapeutics Branch, NIDCR, NIH, Bethesda, MD, USA
| | - A P Cotrim
- Molecular Physiology and Therapeutics Branch, NIDCR, NIH, Bethesda, MD, USA
| | - C M Goldsmith
- Molecular Physiology and Therapeutics Branch, NIDCR, NIH, Bethesda, MD, USA
| | - L McCullagh
- Molecular Physiology and Therapeutics Branch, NIDCR, NIH, Bethesda, MD, USA
| | - T Berkowitz
- Department of Biostatistics & Bioinformatics, Duke University Medical Center, Durham, NC, USA
| | - S L Strobl
- Clinical Services Program, Leidos Biomedical Research, Inc, Frederick, MD, USA
| | - A Malyguine
- Clinical Services Program, Leidos Biomedical Research, Inc, Frederick, MD, USA
| | - W C Kopp
- Clinical Services Program, Leidos Biomedical Research, Inc, Frederick, MD, USA
| | - J A Chiorini
- Molecular Physiology and Therapeutics Branch, NIDCR, NIH, Bethesda, MD, USA
| | - N P Nikolov
- Molecular Physiology and Therapeutics Branch, NIDCR, NIH, Bethesda, MD, USA
| | - M Neely
- Department of Biostatistics & Bioinformatics, Duke University Medical Center, Durham, NC, USA
| | - G G Illei
- Molecular Physiology and Therapeutics Branch, NIDCR, NIH, Bethesda, MD, USA.,Clinical Development, MedImmune, Gaithersburg, MD, USA
| | - B J Baum
- Molecular Physiology and Therapeutics Branch, NIDCR, NIH, Bethesda, MD, USA
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