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Updated: Sep 28, 2025
10:28
The Encapsulation of Cell-free Transcription and Translation Machinery in Vesicles for the Construction of Cellular Mimics
Published on: October 21, 2013
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Embedding a membrane protein into an enveloped artificial viral replica.
Hiroto Furukawa1, Hiroshi Inaba1,2, Yoshihiro Sasaki3
1Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University Koyama-Minami 4-101 Tottori 680-8552 Japan ma2ra-k@tottori-u.ac.jp.
RSC Chemical Biology
|April 1, 2022
Summary
Researchers created artificial enveloped viral capsids with embedded membrane proteins. These novel structures show potential for selective transport into cells, advancing biomimetic materials.
Area of Science:
- Biomaterials Science
- Virology
- Nanotechnology
Background:
- Natural enveloped viruses utilize membrane proteins for host cell interaction.
- Artificial viral capsids offer platforms for biomimetic applications.
- Previous work established a method for constructing enveloped artificial viral capsids.
Purpose of the Study:
- To embed the membrane protein Connexin-43 (Cx43) onto an artificial enveloped viral capsid.
- To characterize the Cx43-embedded artificial viral capsids.
- To assess the functional properties of the engineered viral replicas.
Main Methods:
- Cell-free expression system for membrane protein embedding.
- Western blot analysis for Cx43 expression confirmation.
- Fluorescence correlation spectroscopy (FCS) and transmission electron microscopy (TEM) for structural evaluation.
- Functional assay for selective dye transport into cells.
Main Results:
- Successful embedding of Connexin-43 (Cx43) onto the artificial enveloped viral capsid.
- TEM revealed interconnected spherical structures in Cx43-embedded replicas.
- Demonstrated selective transport of fluorescent dyes from artificial capsids into Cx43-expressing HepG2 cells.
Conclusions:
- Proof-of-concept for creating multimolecular crowding complexes.
- Demonstrated feasibility of embedding functional membrane proteins into artificial viral capsids.
- Highlights potential for developing novel drug delivery or biomimetic systems.
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