Metabolite assemblies: A surprising extension to the amyloid hypothesis

Area of Science:

• Biochemistry
• Molecular Biology
• Pathophysiology

Background:

• Metabolites, small molecules involved in metabolic pathways, were unexpectedly found to form self-assembled amyloid-like nanostructures.
• This discovery links inborn errors of metabolism (IEMs) to amyloid-associated diseases, traditionally linked to protein aggregation.

Purpose of the Study:

• To propose a 'generic amyloid hypothesis' suggesting amyloid-like structure formation is a widespread phenomenon beyond proteins.
• To survey recent research on metabolite amyloids, covering their formation, propagation, interactions, and roles in diseases.
• To explore applications of metabolite assemblies in novel material fabrication.

Main Methods:

• Literature review and synthesis of recent research findings.
• Analysis of self-assembly, propagation, and transmission mechanisms of metabolite amyloids.
• Investigation of the pathological roles of metabolite amyloids in metabolic and neurodegenerative diseases.

Main Results:

• Metabolites can self-assemble into amyloid-like nanostructures, similar to proteins.
• This phenomenon provides a unifying perspective for understanding IEMs and age-related amyloid diseases.
• Metabolite amyloids have implications in disease pathogenesis and potential applications in nanotechnology.

Conclusions:

• The 'generic amyloid hypothesis' extends the concept of amyloid formation to metabolites.
• Metabolite amyloids represent a significant area of research with implications for both disease and material science.
• Further research into metabolite amyloids could lead to novel therapeutic strategies and advanced materials.