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Related Concept Videos

Leaky Scanning02:28

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During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
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Cells are sometimes infected by more than one virus at once. When two viruses disassemble to expose their genomes for replication in the same cell, similar regions of their genomes can pair together and exchange sequences in a process called recombination. Alternatively, viruses with segmented genomes can swap segments in a process called reassortment.
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Related Experiment Video

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Intranasal Administration of Recombinant Influenza Vaccines in Chimeric Mouse Models to Study Mucosal Immunity
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Viral vector-based influenza vaccines.

Rory D de Vries1, Guus F Rimmelzwaan1

  • 1a Department of Viroscience , Erasmus MC , Rotterdam , The Netherlands.

Human Vaccines & Immunotherapeutics
|July 26, 2016
PubMed
Summary
This summary is machine-generated.

Developing broadly protective influenza vaccines is crucial due to viral drift and novel subtypes. Recombinant viral vectors offer a promising approach to induce robust immune responses against diverse influenza strains.

Keywords:
MVAadenovirusimmunityinfluenzavaccinevector

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Area of Science:

  • Virology
  • Immunology
  • Vaccinology

Background:

  • Influenza viruses undergo antigenic drift and reassortment, necessitating frequent vaccine updates.
  • Current influenza vaccines often lag behind circulating strains, leading to reduced efficacy.
  • Novel influenza virus subtypes pose pandemic threats, highlighting the need for universal vaccines.

Purpose of the Study:

  • To systematically review the progress and potential of recombinant viral vector-based influenza vaccines.
  • To evaluate the advantages and disadvantages of various viral vectors for vaccine development.
  • To assess the capacity of vectored vaccines to induce broad and protective immunity against influenza.

Main Methods:

  • Systematic literature review of studies on viral vector-delivered influenza antigens.
  • Analysis of immune responses (B-cell and T-cell) elicited by vectored vaccines.
  • Comparative assessment of different viral vector platforms and their performance.

Main Results:

  • Viral vectors enable targeted delivery of influenza antigens for optimal immune stimulation.
  • Vectored vaccines have demonstrated the potential to induce both humoral and cellular immunity.
  • Different viral vectors exhibit varying efficiencies and safety profiles.

Conclusions:

  • Recombinant viral vectors represent a promising strategy for developing next-generation influenza vaccines.
  • These platforms can potentially overcome challenges posed by influenza virus evolution and novel strains.
  • Further research and development are needed to optimize viral vector technology for universal influenza protection.