Advanced Glycation End-Products (AGEs): Receptors, Signalling Pathways, and Anti-AGE Therapies
A special issue of Biomolecules (ISSN 2218-273X). This special issue belongs to the section "Biomacromolecules: Carbohydrates".
Deadline for manuscript submissions: 31 July 2024 | Viewed by 2762
Special Issue Editors
Interests: nutrigenomics, cell signaling, receptors, GPCR-receptors, chemistry and biochemistry of nucleic acids
Interests: Stab2 receptor, advanced glycation end-products, protein-ligand interactions, structural biology, Stab2 receptor, advanced glycation end-products, psychrophilic enzymes
Special Issue Information
Dear Colleagues,
Advanced glycation end-products (AGEs) constitute a complex, chemically diverse group of biomolecules formed endogenously on the course of various pathways in the human body or absorbed exogenously from diet. They are formed non-enzymatically by condensation of the carbonyl group of reducing saccharides and the free amine group of nucleic acids, proteins, or lipids. Unstable intermediates are further rearranged, yielding a group of reactive carbonyls and irreversible, stable end-products. The most investigated examples of AGEs include Nε-(carboxymethyl)lysine (CML), Nε-(1-carboxyethyl)lysine (CEL), pentosidine, crossline, arginine pyrimidine, and others. Levels of specific glycated proteins, such as circulating glycated hemoglobin (HbA1c), serve as reliable biomarkers of adverse states like hyperglycemic states, insulin resistance, and diabetes mellitus (DM).
AGEs are recognized by several cellular receptors, including the Receptor for AGEs (RAGE), AGE-R1/OST-48, AGE-R2/80K-H, AGE-R3/galectin-3, and scavenger receptors (Stab1, Stab2, LOX1, CD36, SR-AI, SR-BI). The insight into structural aspects of AGE binding is minimal, and no receptor-ligand crystal structures are known. Only one solution NMR structure with CEL peptide for the primary receptor, RAGE, is currently available.
Upon binding to the receptor, AGEs trigger many signalling pathways related to inflammation and oxidative stress. The number of publications reporting the evidence of their involvement in many physiological and pathological processes is steadily growing. They have been implicated in several lifestyle-related diseases, including DM and its complications, cancer, renal, neurodegenerative, and cardiovascular diseases.
The strategies against the deleterious impact of AGEs rely either on natural products or synthetic compounds and can have diverse mechanisms of action. One of the approaches is the scavenging of AGEs; the others aim to block the receptors of these biomolecules or reduce their formation in the human body. Although many pharmacologic anti-AGE treatments have been recently reported, their efficacy remains to be evaluated in clinical trials.
The goal of this Special Issue is to collect experimental papers and reviews that enhance the understanding of AGE-receptor binding, the signalling pathways they activate, and anti-AGE therapies. We look forward to receiving your contributions.
Prof. Dr. Maria Koziołkiewicz
Dr. Aleksandra Twarda-Clapa
Guest Editors
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Keywords
- advanced glycation end-products
- AGEs, AGE receptors
- anti-AGE therapies
- RAGE
- scavenger receptors
- AGE-related diseases
- signalling pathways
