Underappreciated layers of antibody-mediated immune synapse architecture and dynamics

ABSTRACT The biologic activities of antibody drugs are dictated by structure-function relationships—emerging from the kind, composition, and degree of interactions with a target antigen and with soluble and cellular antibody receptors of the innate immune system. These activities are canonically und...

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Main Authors: Benjamin S. Goldberg, Margaret E. Ackerman
Format: Article
Language:English
Published: American Society for Microbiology 2025-01-01
Series:mBio
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Online Access:https://journals.asm.org/doi/10.1128/mbio.01900-24
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author Benjamin S. Goldberg
Margaret E. Ackerman
author_facet Benjamin S. Goldberg
Margaret E. Ackerman
author_sort Benjamin S. Goldberg
collection DOAJ
description ABSTRACT The biologic activities of antibody drugs are dictated by structure-function relationships—emerging from the kind, composition, and degree of interactions with a target antigen and with soluble and cellular antibody receptors of the innate immune system. These activities are canonically understood to be both modular: antigen recognition is driven by the heterodimeric antigen-binding fragment, and innate immune recruitment by the homodimeric constant/crystallizable fragment. The model that treats these domains with a high degree of independence has served the field well but is not without limitations. Here, we consider how new insights, particularly from structural studies, complicate the model of neat biophysical separation between these domains and shape our understanding of antibody effector functions. The emerging model endeavors to explain the phenotypic impact of both antibody intrinsic characteristics and extrinsic features—fitting them within a spatiotemporal paradigm that better accounts for observed antibody activities. In this review, we will use insights from recent models of classical complement complexes and T cell immune synapse formation to explore how structural differences in antibody-mediated immune synapses may relate to their functional diversity.
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institution Kabale University
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spelling doaj-art-06ca4103625b474581547809946201b72025-01-08T14:00:38ZengAmerican Society for MicrobiologymBio2150-75112025-01-0116110.1128/mbio.01900-24Underappreciated layers of antibody-mediated immune synapse architecture and dynamicsBenjamin S. Goldberg0Margaret E. Ackerman1Thayer School of Engineering, Dartmouth College, Hanover, New Hampshire, USAThayer School of Engineering, Dartmouth College, Hanover, New Hampshire, USAABSTRACT The biologic activities of antibody drugs are dictated by structure-function relationships—emerging from the kind, composition, and degree of interactions with a target antigen and with soluble and cellular antibody receptors of the innate immune system. These activities are canonically understood to be both modular: antigen recognition is driven by the heterodimeric antigen-binding fragment, and innate immune recruitment by the homodimeric constant/crystallizable fragment. The model that treats these domains with a high degree of independence has served the field well but is not without limitations. Here, we consider how new insights, particularly from structural studies, complicate the model of neat biophysical separation between these domains and shape our understanding of antibody effector functions. The emerging model endeavors to explain the phenotypic impact of both antibody intrinsic characteristics and extrinsic features—fitting them within a spatiotemporal paradigm that better accounts for observed antibody activities. In this review, we will use insights from recent models of classical complement complexes and T cell immune synapse formation to explore how structural differences in antibody-mediated immune synapses may relate to their functional diversity.https://journals.asm.org/doi/10.1128/mbio.01900-24antibodyeffector functionimmune synapsemechanism of action
spellingShingle Benjamin S. Goldberg
Margaret E. Ackerman
Underappreciated layers of antibody-mediated immune synapse architecture and dynamics
mBio
antibody
effector function
immune synapse
mechanism of action
title Underappreciated layers of antibody-mediated immune synapse architecture and dynamics
title_full Underappreciated layers of antibody-mediated immune synapse architecture and dynamics
title_fullStr Underappreciated layers of antibody-mediated immune synapse architecture and dynamics
title_full_unstemmed Underappreciated layers of antibody-mediated immune synapse architecture and dynamics
title_short Underappreciated layers of antibody-mediated immune synapse architecture and dynamics
title_sort underappreciated layers of antibody mediated immune synapse architecture and dynamics
topic antibody
effector function
immune synapse
mechanism of action
url https://journals.asm.org/doi/10.1128/mbio.01900-24
work_keys_str_mv AT benjaminsgoldberg underappreciatedlayersofantibodymediatedimmunesynapsearchitectureanddynamics
AT margareteackerman underappreciatedlayersofantibodymediatedimmunesynapsearchitectureanddynamics