Alternative Affinity Ligands for Immunoglobulins.

Bioconjug Chem

Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, SI-1000 Ljubljana, Slovenia.

Published: August 2017

AI Article Synopsis

  • The demand for recombinant therapeutic antibodies and Fc-fusion proteins is rising, prompting efforts to enhance downstream processing, particularly through improved affinity chromatography for effective purification.
  • Advances in molecular design and high-throughput screening have led to the emergence of new affinity ligands that serve as alternatives to traditional Ig-binding proteins.
  • This review discusses the development and features of various novel antibody-binding ligands, including engineered Ig-binding proteins, synthetic proteins, peptides, and small molecules, along with their applications in chromatography and other areas.

Article Abstract

The demand for recombinant therapeutic antibodies and Fc-fusion proteins is expected to increase in the years to come. Hence, extensive efforts are concentrated on improving the downstream processing. In particular, the development of better-affinity chromatography matrices, supporting robust time- and cost-effective antibody purification, is warranted. With the advances in molecular design and high-throughput screening approaches from chemical and biological combinatorial libraries, novel affinity ligands representing alternatives to bacterial immunoglobulin (Ig)-binding proteins have entered the scene. Here, we review the design, development, and properties of diverse classes of alternative antibody-binding ligands, ranging from engineered versions of Ig-binding proteins, to artificial binding proteins, peptides, aptamers, and synthetic small-molecular-weight compounds. We also provide examples of applications for the novel affinity matrices in chromatography and beyond.

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Source
http://dx.doi.org/10.1021/acs.bioconjchem.7b00335DOI Listing

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