Amyloid Fibril Binding

Amyloid fibril binding refers to the molecular interaction between ligands and amyloid fibrils—highly ordered protein aggregates characterized by cross-β sheet structures. These fibrils are implicated in a range of neurodegenerative and systemic diseases. The ability to bind specifically to amyloid fibrils is central for both diagnostic imaging agents and therapeutic compounds designed to modulate aggregation or toxicity. Ligand binding is often driven by hydrophobic interactions along the β-sheet-rich surface channels of the fibril. Structure-guided design enables development of highly selective ligands tailored for specific polymorphic forms found in different diseases or patient subtypes. Compounds that bind tightly to mature amyloid fibrils may reduce toxicity by preventing release of smaller toxic oligomers.

Binding to mature fibrils or soluble oligomers; can stabilize non-toxic forms or block toxic species release.