Directed Assembly of Elastin-like Proteins into defined Supramolecular Structures and Cargo Encapsulation In Vitro

作者： Andreas Schreiber*1,2, Lara G. Stühn*1,2, Süreyya E. Geissinger1,2, Matthias C. Huber1,2, Stefan M. Schiller1,2,3,4,5,6 1Center for Biological Systems Analysis,University of Freiburg, 2Faculty of Biology,University of Freiburg, 3Freiburg Institute for Advanced Studies (FRIAS),University of Freiburg, 4BIOSS Centre for Biological Signalling Studies,University of Freiburg, 5IMTEK Department of Microsystems Engineering,University of Freiburg, 6Cluster of Excellence livMatS at FIT - Freiburg Center for Interactive Materials and Bioinspired Technologies,University of Freiburg

简介：

Overview

This study presents efficient protocols for assembling supramolecular structures using amphiphilic elastin-like proteins. These structures, including vesicles, fibers, and coacervates, exhibit tunable properties and can encapsulate diverse cargo.

Key Study Components

Area of Science

• Biomaterials
• Supramolecular Chemistry
• Drug Delivery Systems

Background

• Supramolecular structures are essential for minimal cell design.
• Amphiphilic elastin-like proteins can form complex structures.
• Encapsulation of cargo is crucial for drug delivery applications.
• Environmental parameters influence the assembly of these proteins.

Purpose of Study

• To develop protocols for efficient assembly of protein-based structures.
• To explore the tunable properties of these structures.
• To demonstrate the encapsulation capabilities of the assembled compartments.

Methods Used

• Assembly of amphiphilic elastin-like proteins in organic and aqueous solvents.
• Characterization of supramolecular structures formed.
• Encapsulation of chemically diverse fluorescent cargo molecules.
• Expression protocols for fluorescent protein tagging.

Main Results

• Successful formation of vesicles, fibers, and coacervates.
• Demonstrated phase separation behavior of protein membrane-based compartments.
• Encapsulation of various cargo molecules was achieved.
• Protocols yield structures with adaptable physicochemical properties.

Conclusions

• The study provides a framework for creating versatile protein-based compartments.
• These compartments can be tailored for specific applications in drug delivery.
• Future research can build on these protocols for further applications.

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