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Related Concept Videos

B Cell Activation and Differentiation01:24

B Cell Activation and Differentiation

The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
Humoral Immune Responses01:36

Humoral Immune Responses

Overview
Hybridoma Technology01:31

Hybridoma Technology

Hybridoma technology is used for the large-scale production of monoclonal antibodies. Monoclonal antibodies bind to only a single antigenic determinant or epitope. Such antibodies are used in research, diagnostics, and disease therapy. The hybridoma technology established in 1975 by Georges Köhler and Cesar Milstein was awarded the Nobel Prize in Medicine in 1984 for revolutionizing research and therapy.
Hybridoma Selection
Commonly used fusion techniques — electroporation, polyethylene glycol...
Antibody Structure and Classes01:25

Antibody Structure and Classes

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.
The basic structure of an antibody consists of four protein chains: two identical heavy chains and two identical light chains. These chains are held together by disulfide bonds and other non-covalent interactions, forming a Y-shaped structure.
Antibody Actions01:26

Antibody Actions

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
Antibodies can bind to pathogens, preventing them from infecting host cells. This process...
Antibody Structure01:10

Antibody Structure

Overview
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.
The Y-Shaped Structure of Antibodies Consists of Four Polypeptide Chains
Antibodies consist of four polypeptide chains: two identical heavy...

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Related Experiment Video

Updated: Jun 21, 2026

Generation of Discriminative Human Monoclonal Antibodies from Rare Antigen-specific B Cells Circulating in Blood
13:14

Generation of Discriminative Human Monoclonal Antibodies from Rare Antigen-specific B Cells Circulating in Blood

Published on: February 6, 2018

[Basic immunological knowledge for understanding monoclonal antibodies].

M Moutschen1, A J Scheen

  • 1Service de Médecine interne générale, Infectiologie, CHU Liège, Belgique.

Revue Medicale De Liege
|August 1, 2009
PubMed
Summary
This summary is machine-generated.

Antibodies (Abs) are immune system proteins that bind to antigens (Ag). Monoclonal antibodies (mAbs) offer high specificity, targeting cells like tumor cells for therapeutic applications.

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Flow Cytometric Characterization of Murine B Cell Development

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Last Updated: Jun 21, 2026

Generation of Discriminative Human Monoclonal Antibodies from Rare Antigen-specific B Cells Circulating in Blood
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Generation of Discriminative Human Monoclonal Antibodies from Rare Antigen-specific B Cells Circulating in Blood

Published on: February 6, 2018

Generation of Recombinant Human IgG Monoclonal Antibodies from Immortalized Sorted B Cells
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Generation of Recombinant Human IgG Monoclonal Antibodies from Immortalized Sorted B Cells

Published on: June 5, 2015

Flow Cytometric Characterization of Murine B Cell Development
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Flow Cytometric Characterization of Murine B Cell Development

Published on: January 22, 2021

Area of Science:

  • Immunology
  • Molecular Biology

Context:

  • Antibodies (Abs) are key immune molecules with dual functions: antigen binding and immune cell recruitment.
  • Antigen recognition by Abs is highly specific, with epitopes serving as binding sites.

Purpose:

  • To elucidate the structure-function relationship of antibodies.
  • To differentiate between monoclonal antibodies (mAbs) and polyclonal antibodies.
  • To highlight the therapeutic potential of mAbs.

Summary:

  • Antibodies possess variable regions (Fab) for antigen (Ag) binding and constant regions (Fc) for immune cell interaction, enabling targeted cell destruction.
  • Monoclonal antibodies (mAbs) are derived from a single B-cell clone, ensuring high specificity for a single epitope.
  • MAbs exhibit unique mechanisms, including signal transduction modulation and targeted immune responses against cells like tumor cells.

Impact:

  • Monoclonal antibodies have transitioned from research and diagnostic tools to significant therapeutic agents.
  • Understanding antibody specificity is crucial for developing targeted therapies in various diseases.
  • The selective action of mAbs offers a promising avenue for cancer immunotherapy and other treatments.