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Assays for the Degradation of Misfolded Proteins in Cells
Published on: August 28, 2016
Peptide-Based Molecular Strategies To Interfere with Protein Misfolding, Aggregation, and Cell Degeneration
Valentina Armiento1, Anna Spanopoulou1,2, Aphrodite Kapurniotu1
1Division of Peptide Biochemistry, TUM School of Life Sciences, Technische Universität München, Emil-Erlenmeyer-Forum 5, 85354, Freising, Germany.
Abstract:
Protein misfolding into amyloid fibrils is linked to more than 40 as yet incurable cell- and neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, and type 2 diabetes. So far, however, only one of the numerous anti-amyloid molecules has reached patients. This Minireview gives an overview of molecular strategies and peptide chemistry "tools" to design, develop, and discover peptide-based molecules as anti-amyloid drug candidates. We focus on two major inhibitor rational design strategies: 1) the oldest and most common strategy, based on molecular recognition elements of amyloid self-assembly, and 2) a more recent approach, based on cross-amyloid interactions. We discuss why peptide-based amyloid inhibitors, in particular their advanced generations, can be promising leads or candidates for anti-amyloid drugs as well as valuable tools for deciphering amyloid-mediated cell damage and its link to disease pathogenesis.
Insights
Developing peptide-based drugs offers a promising strategy to combat amyloid diseases like Alzheimer's and Parkinson's. These molecules target protein misfolding, a key factor in over 40 incurable neurodegenerative conditions.
Area of Science:
- Biochemistry
- Molecular Biology
- Drug Discovery
Background:
- Protein misfolding into amyloid fibrils is implicated in over 40 incurable diseases, including Alzheimer's, Parkinson's, and type 2 diabetes.
- Despite the prevalence of amyloid-related diseases, few anti-amyloid molecules have successfully reached patients.
- Peptide chemistry provides versatile tools for designing novel therapeutic agents against amyloid formation.
Purpose of the Study:
- To provide an overview of molecular strategies and peptide chemistry for designing anti-amyloid drug candidates.
- To focus on two primary rational design strategies for amyloid inhibitors: molecular recognition elements and cross-amyloid interactions.
- To highlight the potential of advanced-generation peptide-based inhibitors as therapeutic leads and research tools.
Main Methods:
- Review of existing literature on molecular strategies for anti-amyloid drug design.
- Analysis of peptide chemistry approaches in developing inhibitors.
- Discussion of rational design principles, including molecular recognition and cross-amyloid interactions.
Main Results:
- Identification of two major rational design strategies for peptide-based amyloid inhibitors.
- Emphasis on the potential of molecular recognition elements and cross-amyloid interactions.
- Discussion of the promise of advanced peptide generations as drug candidates and research tools.
Conclusions:
- Peptide-based molecules represent promising candidates for anti-amyloid therapeutics.
- Advanced generations of peptide inhibitors show potential for treating amyloid-related diseases.
- Peptide-based tools are valuable for understanding amyloid pathogenesis and cell damage.
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