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Multivalent protein subunit vaccine

ABSTRACT: Development of a nano-emulsion based multivalent protein subunit vaccine against Pseudomonas aeruginosa

PROVIDER: PRJEB74023 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR12771370_1.fastq.gz	Fastqsanger.gz
	ERR12771370_2.fastq.gz	Fastqsanger.gz
	ERR12771371_1.fastq.gz	Fastqsanger.gz
	ERR12771371_2.fastq.gz	Fastqsanger.gz
	ERR12771372_1.fastq.gz	Fastqsanger.gz

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Multivalent protein subunit vaccine

Project description:Development of a nano-emulsion based multivalent protein subunit vaccine against Pseudomonas aeruginosa

| PRJEB73716 | ENA

Administration of multivalent influenza virus recombinant hemagglutinin vaccine in combination-adjuvant elicits broad reactivity beyond the vaccine components

Project description:Combining variant antigens into a multivalent vaccine is a traditional approach used to provide broad coverage against antigenically variable pathogens, such as polio, human papilloma and influenza viruses. However, strategies for increasing the breadth of antibody coverage beyond the vaccine are not well understood, but may provide more anticipatory protection. Influenza virus hemagglutinin (HA) is a prototypic variant antigen. Vaccines that induce HA-specific neutralizing antibodies lose efficacy as amino acid substitutions accumulate in neutralizing epitopes during influenza virus evolution. Here we studied the effect of a potent combination adjuvant (CpG/MPLA/squalene-in-water emulsion) on the breadth and maturation of the antibody response to a representative variant of HA subtypes H1, H5 and H7. Using HA protein microarrays and antigen-specific B cell labelling, we show when administered individually, each HA elicits a cross-reactive antibody profile for multiple variants within the same subtype and other closely-related subtypes (homosubtypic and heterosubtypic cross-reactivity, respectively). Despite a capacity for each subtype to induce heterosubtypic cross-reactivity, broader coverage was elicited by simply combining the subtypes into a multivalent vaccine. Importantly, multiplexing did not compromise antibody avidity or affinity maturation to the individual HA constituents. The use of adjuvants to increase the breadth of antibody coverage beyond the vaccine antigens may help future-proof vaccines against newly-emerging variants.

2021-06-26 | GSE178932 | GEO

Multivalent S2-subunit Vaccines Provide Broad Protection Against Clade 1 Sarbecoviruses

Project description:Multivalent S2-subunit Vaccines Provide Broad Protection Against Clade 1 Sarbecoviruses

| PRJNA1187638 | ENA

An inactivated multivalent influenza A virus vaccine is broadly protective in mice and ferrets [ferret]

Project description:Influenza A viruses (IAVs) present major public health threats from annual seasonal epidemics and pandemics as well as from viruses adapted to a variety of animals including poultry, pigs, and horses. Vaccines that broadly protect against all such IAVs, so-called “universal” influenza vaccines, do not currently exist, but are urgently needed. Here, we demonstrated that an inactivated, multivalent whole virus vaccine, delivered intramuscularly or intranasally, was broadly protective against challenges with multiple IAV hemagglutinin and neuraminidase subtypes in both mice and ferrets. The vaccine is comprised of four beta-propiolactone-inactivated low pathogenicity avian influenza A virus subtypes of H1N9, H3N8, H5N1, or H7N3. Vaccinated mice and ferrets demonstrated substantial protection against a variety of IAVs, including the 1918 H1N1 strain, the highly pathogenic avian H5N8 strain, and H7N9. We also observed protection against challenge with antigenically variable and heterosubtypic avian, swine, and human viruses. Compared to mock vaccinated animals, vaccinated mice and ferrets demonstrated marked reductions in viral titers, lung pathology, and host inflammatory responses. This vaccine approach indicates the feasibility of eliciting broad, heterosubtypic IAV protection and identifies a promising candidate for influenza vaccine clinical development.

2022-07-21 | GSE205840 | GEO

An inactivated multivalent influenza A virus vaccine is broadly protective in mice and ferrets [mouse]

2022-07-21 | GSE205839 | GEO

Multivalent S2-subunit Vaccines Provide Broad Protection Against Clade 1 Sarbecoviruses

Project description:The continuing emergence of immune evasive SARS-CoV-2 variants and the previous SARS-CoV-1 outbreak have accentuated the need for broadly protective sarbecovirus vaccines. Targeting the conserved S2-subunit of SARS-CoV-2 is a particularly promising approach to elicit broad protection. Here, expanding on our previous work with S2-based vaccines, we developed a nanoparticle vaccine displaying multiple copies of the SARS-CoV-1 S2 subunit. This vaccine alone, or as a cocktail with a SARS-CoV-2 S2 subunit vaccine, protected female transgenic K18-hACE2 mice from challenges with Omicron subvariant XBB as well as several sarbecoviruses identified as having pandemic potential including the bat sarbecovirus WIV1, BANAL-236, and a pangolin sarbecovirus. Challenge studies in female Fc- receptor knockout mice revealed that antibody-based cellular effector mechanisms played a role in protection elicited by these vaccines. These results demonstrate that our S2-based vaccines provide broad protection against clade 1 sarbecoviruses and offer insight into the mechanistic basis for protection.

2024-11-21 | GSE282247 | GEO

Multivalent Influenza DNA vaccine induces cross-reactive polyfunctional T lymphocytes and promotes rapid clearance of heterologous challenge strain in non-human primates

2016-07-31 | GSE77824 | GEO

Multivalent Influenza DNA vaccine induces cross-reactive polyfunctional T lymphocytes and promotes rapid clearance of heterologous challenge strain in non-human primates

Project description:Recent avian and swine-origin influenza virus outbreaks illustrate the ongoing threat of influenza pandemic. New vaccines that offer accelerated production and broader, more universal protection against drifted and shifted strains are needed. Here, we investigated a multivalent PMED DNA vaccine for the ability to induce antibody and T cell responses against four HA antigens, nucleoprotein and the ectodomain of M2 (M2e). Macaques in the Vaccinated and Control groups were intramuscularly anaesthetized with ketamine (10 mg/kg) and inoculated with a suspension containing 10^6.5 p.f.u. ml-1 of CA09 virus through a combination of intratracheal (4.5 ml), intranasal (0.5 ml per nostril), ocular (0.1 ml per eye) and oral (1 ml) routes (resulting in a total infectious dose of 10^7.4 PFU). Bronchoalveolar lavages were collected two weeks prior to challenge and at days 3, 7, and 10 post-infection. We performed microarray analysis on these samples.

2016-07-31 | E-GEOD-77824 | biostudies-arrayexpress

Subunit vaccine elicited lung TRM cells use fibroblast IL-17R signaling to provide serotype independent immunity against hypervirulent K. pneumoniae

Project description:Subunit vaccine conferred lung protection against heterologous strain through the augmentaion of lung tissue resident memmory CD4+ T-cells.

2020-10-21 | GSE157382 | GEO

Transcriptomes analysis of COVID-19 Inactivated Vaccine and Protein Subunit Vaccine as Third Booster Dose in Human

Project description:To compare the effects of different types of SARS-CoV-2 vaccines in booster immunization, this study established a population cohort vaccinated with inactivated vaccine and protein subunit vaccine as the third booster vaccine, respectively. We collected serum and PBMC samples from participants in chronological order, and performed a systematic review of distinct antibody signatures and microtranscriptomics to provide data support for booster immunization.

2022-10-19 | GSE206023 | GEO

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