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Antibody Structure01:10

Antibody Structure

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Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
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Antibodies, also known as immunoglobulins, are produced by B cells in response to foreign substances, such as bacteria and viruses. These proteins are critical for recognizing and neutralizing these substances, protecting the body from potential harm.
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Antibodies, or immunoglobulins, are critical players in the immune system's arsenal against invading pathogens. Produced by B cells and plasma cells, their primary role is to detect and bind to specific antigens, molecules found on the surface of pathogens like bacteria or viruses. Beyond antigen recognition, antibodies perform several vital functions that contribute to immune defense.
Neutralization
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Cancer treatment vaccines are a rapidly evolving field that offers a promising approach to immunotherapy. Unlike traditional vaccines that prevent diseases, cancer treatment vaccines are designed to treat existing cancers by stimulating the immune system to recognize and attack cancer cells.
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
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Antibody-guided structure-based vaccines.

Peter D Kwong1, Brandon J DeKosky2, Jeffrey B Ulmer3

  • 1Vaccine Research Center, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA.

Seminars in Immunology
|November 28, 2020
PubMed
Summary
This summary is machine-generated.

Researchers are developing novel vaccines by studying antibodies and their targets. These antibody-guided strategies, including structure-based vaccines, show promise for combating diverse pathogens like HIV-1 and SARS-CoV-2.

Keywords:
AntibodyAtomic-level designImmune monitoringNext-generation sequencing (NGS)Nucleic acid-based vaccinesVaccine R&DmRNA delivery

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Area of Science:

  • Immunology
  • Vaccinology
  • Structural Biology

Background:

  • The vaccine field is leveraging molecular insights from antibody and epitope analyses.
  • Developing immunogens that elicit protective immune responses is a key goal.

Purpose of the Study:

  • To review current antibody-guided vaccine strategies.
  • To summarize progress, challenges, and opportunities in structure-based vaccine development.

Main Methods:

  • Review of antibody-guided strategies: conformation-based, epitope-based, and lineage-based approaches.
  • Utilization of sequencing technologies to monitor immune responses.
  • Examination of vaccine development efforts against various pathogens.

Main Results:

  • Promising vaccine candidates derived from antibody-guided strategies are in clinical trials.
  • Sequencing technologies aid in understanding and improving antibody-based immunity.
  • Progress has been made in realizing antibody-guided structure-based vaccines.

Conclusions:

  • Antibody-guided approaches represent a significant advancement in vaccine development.
  • Challenges remain in translating discoveries into safe and effective vaccines.
  • Molecular approaches offer new opportunities for future vaccine design.