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Development of a Generic Anti-PEG Antibody Assay Using BioScale's Acoustic Membrane MicroParticle Technology.

Huijin Dong1, Johanna R Mora2, Catherine Brockus2

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The AAPS Journal
|July 4, 2015
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Summary
This summary is machine-generated.

A new method using Acoustic Membrane MicroParticle technology can detect anti-PEG antibodies in human serum. This assay shows improved sensitivity for detecting anti-polyethylene glycol antibodies, crucial for biotherapeutics.

Keywords:
acoustic membrane microparticle technologyanti-peg antibodiesemerging technologyimmunogenicity assayspegylated biotherapeutics

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Area of Science:

  • Biotechnology
  • Immunology
  • Analytical Chemistry

Background:

  • Immunogenicity testing of PEGylated biotherapeutics requires methods to detect both anti-protein and anti-polyethylene glycol (anti-PEG) antibodies.
  • Existing methods for anti-PEG antibody detection are incomplete and may be affected by interfering reagents like Tween-20.

Purpose of the Study:

  • To describe a novel assay for quantifying anti-PEG antibodies in human serum using Acoustic Membrane MicroParticle (AMMP®) technology.
  • To evaluate the sensitivity and performance of the AMMP® assay for detecting anti-PEG IgG antibodies.

Main Methods:

  • Utilized BioScale's AMMP® technology with the ViBE® Workstation for anti-PEG antibody measurement.
  • Employed paramagnetic beads coated with methoxy polyethylene glycol (mPEG) to capture anti-PEG antibodies from spiked human serum samples.
  • Quantified antibody binding via mass change detected on an acoustic membrane coated with Protein A.

Main Results:

  • The developed assay demonstrated a sensitivity of less than 1000 ng/mL for IgG anti-PEG antibodies.
  • This sensitivity level surpasses current reported methods for IgG anti-PEG antibody detection.
  • The AMMP® technology provides a quantifiable signal proportional to the mass of bound anti-PEG antibodies.

Conclusions:

  • Acoustic Membrane MicroParticle technology offers a sensitive and reliable method for detecting anti-PEG antibodies.
  • This assay addresses limitations of existing methods, improving immunogenicity testing for PEGylated biotherapeutics.
  • The ViBE® Workstation and AMMP® assay provide a valuable tool for biopharmaceutical development and clinical monitoring.