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Related Concept Videos

Antibody Actions01:26

Antibody Actions

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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.
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Antibodies, also known as immunoglobulins (Ig), are essential players of the adaptive immune system. These antigen-binding proteins are produced by B cells and make up 20 percent of the total blood plasma by weight. In mammals, antibodies fall into five different classes, which each elicits a different biological response upon antigen binding.
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Antibody-Recruiting Surfaces Using Adaptive Multicomponent Supramolecular Copolymers.

Marle E J Vleugels1, Esmee de Korver1, Simone I S Hendrikse1

  • 1Laboratory of Macromolecular and Organic Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, Eindhoven 5600 MB, The Netherlands.

Biomacromolecules
|April 9, 2025
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Summary
This summary is machine-generated.

This study introduces a dynamic supramolecular system for cancer immunotherapy. The adaptable, non-covalent fibers can cluster antibodies on cancer cells, potentially enhancing immune responses.

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Area of Science:

  • Supramolecular chemistry
  • Biomaterials science
  • Immunology

Background:

  • Multicomponent structures can cluster antibodies on cancer cells to activate immune responses.
  • Covalent scaffolds for this purpose are difficult to synthesize and lack adaptability.

Purpose of the Study:

  • To develop a dynamic, non-covalently linked multicomponent supramolecular system for antibody clustering on cancer cell surfaces.
  • To create adaptable scaffolds that combine cell surface anchoring and antibody binding motifs.

Main Methods:

  • Functionalization of benzene-1,3,5-tricarboxamide (BTA) monomers with benzoxaborole (Ba) for surface anchoring and dinitrophenyl (DNP) for antibody binding.
  • Formation of multicomponent supramolecular fibers using BTA-(OH)3, BTA-Ba, and BTA-DNP.
  • Recruitment of anti-DNP antibodies to supported lipid bilayers and demonstration of dynamic exchange in a cell-mimicking environment.

Main Results:

  • The supramolecular fibers successfully recruited anti-DNP antibodies to sialic acid-functionalized supported lipid bilayers.
  • Both benzoxaborole (Ba) and dinitrophenyl (DNP) binding motifs remained accessible within the assembled fibers.
  • Dynamic exchange and adaptivity of the supramolecular polymers were confirmed in a cell-mimicking environment.

Conclusions:

  • A dynamic, adaptable multicomponent supramolecular system was successfully developed without covalent linkages.
  • This system effectively clusters antibodies on cell surfaces, mimicking natural systems and offering potential for cancer immunotherapy.
  • The adaptivity of these supramolecular polymers allows components to work in concert, overcoming the limitations of static covalent scaffolds.