ArticleJournal of virology2017
Replicating Single-Cycle Adenovirus Vectors Generate Amplified Influenza Vaccine Responses.
Article in Journal of virology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
34 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.
- Interpretative immune targets and contemporary position for vaccine development against SARS-CoV-2: A systematic review.Journal of medical virology · 2021Pooled it
- Comparison of Systemic and Mucosal Synchronous Immunization with Replicating Single-cycle Adenoviruses and SOSIP Protein HIV-1 Vaccines.Research square · 2026Article
- Genome-replicating HC-AdV: A novel high-capacity adenoviral vector class featuring enhancedMolecular therapy. Methods & clinical development · 2025Article
- Developing the next-generation of adenoviral vector vaccines.Human vaccines & immunotherapeutics · 2025Review
- Review
- Comparison of replicating and nonreplicating vaccines against SARS-CoV-2.Science advances · 2022Article
- Adenovirus Type 6: Subtle Structural Distinctions from Adenovirus Type 5 Result in Essential Differences in Properties and Perspectives for Gene Therapy.Pharmaceutics · 2021Review
- Review
- Nonhuman Adenoviral Vector-Based Platforms and Their Utility in Designing Next Generation of Vaccines for Infectious Diseases.Viruses · 2021Review
- Development and Applications of Viral Vectored Vaccines to Combat Zoonotic and Emerging Public Health Threats.Vaccines · 2020Review
- Adenoviral Vector-Based Vaccine Platforms for Developing the Next Generation of Influenza Vaccines.Vaccines · 2020Review
- Characterization of humoral immune responses and degree of protection induced by influenza vaccine in cotton rats: Effects of low vaccine dose and single vs booster vaccination.Immunity, inflammation and disease · 2020Article
- Article
- Retargeting adenoviruses for therapeutic applications and vaccines.FEBS letters · 2020Review
- Next-generation influenza vaccines: opportunities and challenges.Nature reviews. Drug discovery · 2020Review
- Genetic Adjuvants in Replicating Single-Cycle Adenovirus Vectors Amplify Systemic and Mucosal Immune Responses against HIV-1 Envelope.Vaccines · 2020Article
- Update on treatment and preventive interventions against COVID-19: an overview of potential pharmacological agents and vaccines.Molecular biomedicine · 2020Review
- Adenoviral Vectors as Vaccines for Emerging Avian Influenza Viruses.Frontiers in immunology · 2020Review
- Genomic foundations of evolution and ocular pathogenesis in human adenovirus species D.FEBS letters · 2019Review
- Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 3 institutions in 1 country.
Funding
Abstract
Head-to-head comparisons of conventional influenza vaccines with adenovirus (Ad) gene-based vaccines demonstrated that these viral vectors can mediate more potent protection against influenza virus infection in animal models. In most cases, Ad vaccines are engineered to be replication-defective (RD-Ad) vectors. In contrast, replication-competent Ad (RC-Ad) vaccines are markedly more potent but risk causing adenovirus diseases in vaccine recipients and health care workers. To harness antigen gene replication but avoid production of infectious virions, we developed "single-cycle" adenovirus (SC-Ad) vectors. Previous work demonstrated that SC-Ads amplify transgene expression 100-fold and produce markedly stronger and more persistent immune responses than RD-Ad vectors in Syrian hamsters and rhesus macaques. To test them as potential vaccines, we engineered RD and SC versions of adenovirus serotype 6 (Ad6) to express the hemagglutinin (HA) gene from influenza A/PR/8/34 virus. We show here that it takes approximately 33 times less SC-Ad6 than RD-Ad6 to produce equal amounts of HA antigen in vitro SC-Ad produced markedly higher HA binding and hemagglutination inhibition (HAI) titers than RD-Ad in Syrian hamsters. SC-Ad-vaccinated cotton rats had markedly lower influenza titers than RD-Ad-vaccinated animals after challenge with influenza A/PR/8/34 virus. These data suggest that SC-Ads may be more potent vaccine platforms than conventional RD-Ad vectors and may have utility as "needle-free" mucosal vaccines. IMPORTANCE: Most adenovirus vaccines that are being tested are replication-defective adenoviruses (RD-Ads). This work describes testing newer single-cycle adenovirus (SC-Ad) vectors that replicate transgenes to amplify protein production and immune responses. We show that SC-Ads generate markedly more influenza virus hemagglutinin protein and require substantially less vector to generate the same immune responses as RD-Ad vectors. SC-Ads therefore hold promise to be more potent vectors and vaccines than current RD-Ad vectors.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.