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Hybridoma Technology

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 Classes

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 Actions

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 Structure

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...

Humoral Immune Responses

Humoral Immune Responses

T Cell Activation and Clonal Selection

T Cell Activation and Clonal Selection

T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...

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Related Experiment Video

Updated: Jun 4, 2026

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

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

Published on: February 6, 2018

Polyclonal and monoclonal antibodies.

¹Department of Immunology, Imperial College School of Medicine, London, UK.

Methods in Molecular Medicine

|February 22, 2011

Summary

This summary is machine-generated.

The body

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Area of Science:

Immunology and Molecular Biology
Biotechnology

Background:

The immune system generates a diverse polyclonal antibody response to pathogens.
This natural response involves antigen-reactive B lymphocytes and plasma cells secreting antibodies of varying specificities.
While effective against infection, polyclonal responses lack the defined specificity required for many lab and clinical applications.

Purpose of the Study:

To explain the necessity of producing monoclonal antibodies (mAbs).
To highlight the value of mAbs in research and clinical settings.
To define monoclonal antibodies as reagents with reproducible specificity and affinity.

Main Methods:

Isolation of a single B lymphocyte clone.
Culturing of the selected B lymphocyte clone.
Production of antibodies from the cultured clone.

Main Results:

Generation of a reagent with a single, defined antibody specificity.
Ensuring a consistent and reproducible supply of antibodies.
Creation of antibodies with specific and reliable affinity.

Conclusions:

Monoclonal antibodies (mAbs) are essential for applications requiring high specificity and reproducibility.
The production of mAbs involves isolating and culturing single B cell clones.
mAbs offer a valuable alternative to polyclonal responses for research and clinical use.