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Affinity Chromatography

Affinity Chromatography

Affinity chromatography is a powerful technique extensively utilized for separating and purifying specific biomolecules from complex mixtures. It capitalizes on the highly selective binding between an analyte and its counterpart, such as antibody-antigen interactions. The counterpart is immobilized on the stationary phase, forming an affinity column. The stationary phase typically consists of solid support, such as agarose or porous glass beads, immobilizing the affinity ligand. The mobile...

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Animal-Friendly Affinity Reagents: Replacing the Needless in the Haystack.

A C Gray¹, S S Sidhu², P C Chandrasekera³

¹AFABILITY, Morzine, France.

Trends in Biotechnology

|July 25, 2016

Summary

This summary is machine-generated.

Animal-friendly affinity reagents (AFAs) offer alternatives to animal immunization for antibody production. This study proposes an EU-led strategy to implement these alternatives, reducing animal use in the antibody industry.

Keywords:

3Rs AFAs Directive 2010/63/EU alternatives to animals animal welfare animal-friendly affinity reagents antibodies monoclonal polyclonal

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Area of Science:

Biotechnology
Immunology
Regulatory Science

Background:

The global antibody industry relies heavily on animal immunization, utilizing millions of animals annually.
Despite the availability of advanced animal-friendly affinity reagents (AFAs) like those from naïve B lymphocyte and synthetic recombinant phage display technologies, animal use persists.
This reliance overlooks significant opportunities for animal use reduction.

Purpose of the Study:

To address the continued use of animals in antibody production despite viable alternatives.
To advocate for the implementation of Directive 2010/63/EU, which mandates the use of alternatives when available.
To propose an EU-led strategy for replacing animal-based antibody production.

Main Methods:

Analysis of current antibody production practices and the availability of animal-friendly affinity reagents (AFAs).
Engagement in discussions with the EU Reference Laboratory for alternatives to animal testing (EURL ECVAM) and the Directorate General for Environment.
Development of a proposed EU-led replacement strategy for antibody production.

Main Results:

Identified a significant gap between the availability of animal-friendly alternatives and their adoption in the antibody industry.
Initiated dialogue with key EU regulatory bodies to foster a strategy for implementing Directive 2010/63/EU.
Outlined necessary measures including avoiding outsourcing, regulating commercial production, and supporting antibody producers.

Conclusions:

The antibody industry must transition towards animal-friendly affinity reagents (AFAs) to comply with ethical and regulatory standards.
An EU-led strategy is crucial for facilitating the widespread adoption of alternatives and reducing animal use.
Regulatory measures and industry support are essential for a successful shift away from animal immunization.