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Related Concept Videos

Influenza01:27

Influenza

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Influenza is an acute, highly communicable viral disease that affects the respiratory tract and is responsible for seasonal epidemics worldwide. Influenza A is the most prevalent type associated with widespread outbreaks and is subtyped based on two surface glycoproteins: hemagglutinin (H) and neuraminidase (N), as in H1N1. These glycoproteins are essential for viral infectivity, transmission, and immune recognition. Transmission occurs primarily through respiratory droplets and contaminated...
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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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An antigen is any substance the immune system identifies as foreign and potentially harmful to the body, prompting an immune response. Antigens have two functional properties: immunogenicity and reactivity. Immunogenicity is the ability of an antigen to stimulate a specific immune response. At the same time, reactivity describes the antigen's ability to react with the cells and antibodies produced in response to it.
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The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
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Updated: Apr 15, 2026

A Method to Assess Fc-mediated Effector Functions Induced by Influenza Hemagglutinin Specific Antibodies
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Influenza virus antigenicity and broadly neutralizing epitopes.

Gillian M Air1

  • 1Department of Biochemistry & Molecular Biology, University of Oklahoma Health Sciences Center, PO Box 26901, Oklahoma City, OK 73126-0901, United States.

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Developing a universal influenza vaccine is challenging due to strain-specific antibodies. Recent discoveries of broadly neutralizing antibodies offer new therapeutic and vaccine design possibilities against all influenza virus strains.

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Area of Science:

  • Virology
  • Immunology
  • Vaccinology

Background:

  • Developing a universal influenza vaccine effective against all strains remains a significant challenge.
  • Traditional vaccines elicit strain-specific antibodies, limiting cross-subtype protection.
  • Limited evidence existed for broadly neutralizing antibodies against diverse influenza subtypes.

Purpose of the Study:

  • To review the landscape of broadly neutralizing antibodies against influenza.
  • To discuss the therapeutic potential of these antibodies.
  • To explore their application in designing novel immunogens for universal vaccines.

Main Methods:

  • Characterization of broadly neutralizing monoclonal antibodies.
  • Review of scientific literature on influenza antibody responses.
  • Analysis of therapeutic and immunogen design strategies.

Main Results:

  • Several classes of broadly neutralizing monoclonal antibodies have been identified.
  • These antibodies show potential for therapeutic intervention.
  • They provide a basis for designing immunogens to elicit broad immunity.

Conclusions:

  • Broadly neutralizing antibodies represent a promising avenue for universal influenza vaccine development.
  • Targeting conserved epitopes with these antibodies could overcome strain specificity.
  • Further research into their mechanisms and application is warranted.