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Recent Progress on Affibody-Based Supramolecular Architectures: Moving from Monomeric Constructs to Multivalent

Hongfei Wang1, Liqiang Wei1, Chunyue Du2

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|November 27, 2025
PubMed
Summary

Affibody molecules, engineered proteins from Staphylococcal protein A, offer versatile binding for diagnostics and therapeutics. Evolving into multivalent assemblies enhances their function for drug delivery and imaging.

Keywords:
affibodydiagnosticsdrug deliverysupramolecular architecturetherapeutics

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Area of Science:

  • Biotechnology
  • Protein Engineering
  • Molecular Biology

Background:

  • Affibody molecules are small, engineered proteins derived from Staphylococcal protein A's Z-domain.
  • They possess high affinity and specificity for diverse molecular targets.
  • Their versatility has led to applications in diagnostics, therapeutics, and biosensing.

Purpose of the Study:

  • To review the evolution of affibody constructs from monomers to multivalent assemblies.
  • To highlight how this evolution overcomes limitations and expands functionality.
  • To discuss recent advances enabling sophisticated affibody-based architectures.

Main Methods:

  • Literature review of affibody evolution and applications.
  • Analysis of advancements in conjugation chemistry, scaffold engineering, and protein design.
  • Examination of multivalent supramolecular assemblies and their properties.

Main Results:

  • Monomeric affibodies have been successfully engineered for various targets.
  • The transition to multivalent supramolecular assemblies enhances binding avidity and overcomes limitations.
  • Recent advances facilitate the creation of complex affibody architectures.

Conclusions:

  • Multivalent affibody assemblies represent a significant advancement over monomeric forms.
  • Sophisticated affibody architectures improve pharmacokinetic profiles and binding capabilities.
  • Affibody-based strategies show great promise in targeted drug delivery, molecular imaging, and theranostics.