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Direct Protein Delivery to Mammalian Cells Using Cell-permeable Cys2-His2 Zinc-finger Domains

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Published on: March 25, 2015

[Nucleic Acid Delivery across Biological Barriers].

Kanjiro Miyata¹

¹Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo.

Yakugaku Zasshi : Journal of the Pharmaceutical Society of Japan

|May 6, 2021

Summary

Developing novel cationic polyaspartamide derivatives is key for efficient messenger RNA (mRNA) delivery. Side chain structure significantly impacts the performance of these polyplexes for CRISPR genome editing applications.

Keywords:

gene editing mRNA polyion complex polypeptide

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Area of Science:

Biotechnology
Molecular Biology
Polymer Chemistry

Background:

Efficient messenger RNA (mRNA) delivery is crucial for advanced applications like clustered regularly interspaced short palindromic repeats (CRISPR) and CRISPR-associated (Cas) genome editing.
Current challenges in nucleic acid delivery necessitate the development of effective and targeted delivery systems.

Purpose of the Study:

To review previous research on cationic polyaspartamide derivatives for mRNA delivery.
To provide a rationale for designing polypeptides to enhance mRNA delivery efficiency.

Main Methods:

Development of various cationic polyaspartamide derivatives with diverse side chain structures.
Formation of nanocomplexes (polyplexes) between mRNA and polyaspartamide derivatives via electrostatic interactions.
Evaluation of the impact of polyaspartamide side chain chemistry on mRNA delivery efficacy.

Main Results:

The delivery efficiency of mRNA polyplexes was found to be highly dependent on the chemical structures of the polyaspartamide side chains.
Different side chain modifications led to varying degrees of success in forming stable nanocomplexes and delivering mRNA.

Conclusions:

Cationic polyaspartamide derivatives show promise as a platform for efficient mRNA delivery.
Strategic design of polyaspartamide side chains is critical for optimizing polyplex formation and function in genome editing applications.