ArticleScientific reports2024
Enhancing antibody levels and T cell activity of quadrivalent influenza vaccine by combining it with CpG HP021.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Identification and computational analysis of B-cell epitopes on the hemagglutinin protein of the H3N2 influenza virus.Archives of microbiology · 2026Article
- A metabolic amplification strategy for spherical nucleic acid immunogenicity driven by simvastatin-CpG codelivery.Materials today. Bio · 2026Article
- A review of soluble mediator and cytokine networks linking combination immunotherapy, tumor microenvironment remodeling and skeletal muscle dysfunction.Frontiers in immunology · 2026Review
- One Health adjuvant selection for vaccines against zoonotic infections.Exploration of medicine · 2025Article
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Authors and funding
9 authors.
Funding
Abstract
Influenza virus infections are a serious danger to people's health worldwide as they are responsible for seasonal flu outbreaks. There is an urgent need to improve the effectiveness and durability longevity of the immune response to influenza vaccines. We synthesized the CpG HP021 and examined the impact of it on the immune response to an influenza vaccine. In BALB/c mice, hemagglutination inhibition (HI) titers to the vaccine were increased four- to eightfold against H1N1, H3N2, BV, and BY viruses by 3 μg IIV4 + 40 μg CpG HP021 compared with those of the non-adjuvanted IIV4 group, and the CpG HP021 group had a broader HI activity. Additionally, the immune response was directed towards Type 1 T helper (Th1) cells due to the CpG HP021 adjuvant. The CpG HP021-adjuvanted IIV4 induced a higher number of T cells secreting interferon gamma (IFN-γ) and tumor necrosis factor alpha (TNF-α), and increased the percentage of effector memory T cells in mice. In SD rats, the immune responses induced by IIV4 with CpG HP021 were similar to those in BALB/c mice. The development of CpG HP021 may expand the options for adjuvants in vaccines against infectious diseases.
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