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Related Concept Videos

Affinity and Avidity01:41

Affinity and Avidity

Overview
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
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Hybridoma Technology01:31

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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.
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Immunoprecipitation

Immunoprecipitation, or IP, is a widely used technique that employs protein-antibody interactions to isolate proteins or protein complexes in their native state for studying protein-protein interactions, quaternary structures, or supramolecular complexes. Various modifications of the technique, including chromatin IP, cross-linking IP, and fluorescence IP, are commonly used.
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...

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Updated: Jun 25, 2026

Laboratory Scale Production and Purification of a Therapeutic Antibody
09:54

Laboratory Scale Production and Purification of a Therapeutic Antibody

Published on: January 24, 2017

Improving antibody binding affinity and specificity for therapeutic development.

Jenny Bostrom1, Chingwei V Lee, Lauric Haber

  • 1Genentech Inc., San Francisco, CA, USA.

Methods in Molecular Biology (Clifton, N.J.)
|March 3, 2009
PubMed
Summary
This summary is machine-generated.

This study presents a novel method to enhance therapeutic antibody binding affinity and create cross-species reactivity in a single step. This approach accelerates preclinical development by improving antibody efficacy and safety profiling in animal models.

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Area of Science:

  • Biotechnology
  • Immunology
  • Drug Development

Background:

  • High binding affinity is crucial for therapeutic antibody efficacy in vivo.
  • Developing cross-reactive antibodies for preclinical models is essential for validating therapeutic targets and safety.
  • Current methods may require multiple steps for both affinity improvement and cross-species targeting.

Purpose of the Study:

  • To describe a targeted approach for improving therapeutic antibody affinity.
  • To demonstrate the simultaneous generation of high-affinity and cross-species binding antibodies.
  • To streamline the preclinical development of therapeutic antibodies.

Main Methods:

  • Targeting solvent-accessible and diverse CDR residues for diversification.
  • Utilizing degenerate oligonucleotides to create combinatorial phage-displayed antibody libraries.
  • Selecting high-affinity antibodies from libraries with varied diversity at randomized positions.

Main Results:

  • A one-step process was developed for simultaneous antibody affinity improvement and cross-species binding.
  • Combinatorial libraries enabled selection of antibodies with enhanced binding characteristics.
  • The method facilitates generation of antibodies binding to both human and non-human orthologs.

Conclusions:

  • This targeted diversification strategy efficiently enhances antibody affinity and generates cross-species reactivity.
  • The one-step process simplifies and accelerates the development of therapeutic antibodies.
  • This approach supports robust preclinical validation and reduces development timelines and costs.