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Updated: May 17, 2026

Assays for the Degradation of Misfolded Proteins in Cells
Published on: August 28, 2016
Small molecules that target protein misfolding
Lori Krim Gavrin1, Rajiah Aldrin Denny, Eddine Saiah
1BioTherapeutics Chemistry, Pfizer Worldwide Medicinal Chemistry, 200 CambridgePark Drive, Cambridge, Massachusetts 02140, USA.
Abstract:
Protein misfolding is a process in which proteins are unable to attain or maintain their biologically active conformation. Factors contributing to protein misfolding include missense mutations and intracellular factors such as pH changes, oxidative stress, or metal ions. Protein misfolding is linked to a large number of diseases such as cystic fibrosis, Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and less familiar diseases such as Gaucher's disease, nephrogenic diabetes insipidus, and Creutzfeldt-Jakob disease. In this Perspective, we report on small molecules that bind to and stabilize the aberrant protein, thereby helping it to attain a native or near-native conformation and restoring its function. The following targets will be specifically discussed: transthyretin, p53, superoxide dismutase 1, lysozyme, serum amyloid A, prions, vasopressin receptor 2, and α-1-antitrypsin.
Insights
Small molecules can stabilize misfolded proteins, restoring their function and potentially treating diseases like Alzheimer's and Parkinson's. This approach offers a new therapeutic strategy for protein misfolding disorders.
Area of Science:
- Biochemistry
- Molecular Biology
- Pharmacology
Background:
- Protein misfolding, where proteins lose their functional shape, is implicated in numerous diseases.
- Causes include genetic mutations and cellular stress (e.g., oxidative stress, pH changes).
- Associated diseases range from common neurodegenerative disorders to rarer conditions.
Purpose of the Study:
- To review small molecules designed to stabilize misfolded proteins.
- To explore therapeutic strategies for restoring protein function.
Main Methods:
- Literature review of small molecules targeting specific aberrant proteins.
- Discussion of stabilization mechanisms and functional restoration.
Main Results:
- Identified small molecules that bind to and stabilize misfolded proteins.
- Demonstrated potential for restoring native or near-native protein conformations.
- Highlighted therapeutic applications for various protein misfolding diseases.
Conclusions:
- Small molecule stabilization is a promising therapeutic approach for protein misfolding diseases.
- Targeting specific proteins like transthyretin, p53, and prions shows potential.
- Further research can advance treatments for debilitating conditions caused by protein misfolding.
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