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Updated: Jul 12, 2025

Bioinformatics Resources for the Study of Glycan-Mediated Protein Interactions
Published on: January 20, 2022
The universe of galectin-binding partners and their functions in health and disease
María F Troncoso1, María T Elola1, Ada G Blidner2
1Departamento de Química Biológica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina; Instituto de Química y Fisicoquímica Biológicas (IQUIFIB) Prof Alejandro C. Paladini, CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina.
Abstract:
Galectins, a family of evolutionarily conserved glycan-binding proteins, play key roles in diverse biological processes including tissue repair, adipogenesis, immune cell homeostasis, angiogenesis, and pathogen recognition. Dysregulation of galectins and their ligands has been observed in a wide range of pathologic conditions including cancer, autoimmune inflammation, infection, fibrosis, and metabolic disorders. Through protein-glycan or protein-protein interactions, these endogenous lectins can shape the initiation, perpetuation, and resolution of these processes, suggesting their potential roles in disease monitoring and treatment. However, despite considerable progress, a full understanding of the biology and therapeutic potential of galectins has not been reached due to their diversity, multiplicity of cell targets, and receptor promiscuity. In this article, we discuss the multiple galectin-binding partners present in different cell types, focusing on their contributions to selected physiologic and pathologic settings. Understanding the molecular bases of galectin-ligand interactions, particularly their glycan-dependency, the biochemical nature of selected receptors, and underlying signaling events, might contribute to designing rational therapeutic strategies to control a broad range of pathologic conditions.
Insights
Galectins are proteins crucial for many bodily functions. Their dysregulation is linked to diseases like cancer and inflammation, highlighting their therapeutic potential.
Area of Science:
- Biochemistry
- Immunology
- Molecular Biology
Background:
- Galectins are conserved glycan-binding proteins involved in vital biological processes.
- Aberrant galectin expression is implicated in various pathologies, including cancer, autoimmune diseases, and metabolic disorders.
Purpose of the Study:
- To explore the diverse galectin-binding partners and their roles in physiological and pathological conditions.
- To understand the molecular mechanisms of galectin-ligand interactions for therapeutic development.
Main Methods:
- Review of existing literature on galectin biology and interactions.
- Analysis of galectin roles in different cell types and disease contexts.
Main Results:
- Galectins interact with multiple partners, influencing processes like tissue repair, immune response, and disease progression.
- Dysregulation of galectins contributes to the pathogenesis of numerous diseases.
Conclusions:
- Understanding galectin-ligand interactions, including glycan-dependency and signaling, is key to developing targeted therapies.
- Galectins represent promising targets for monitoring and treating a spectrum of diseases.
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