1
|
Shinga K, Iwata T, Murata K, Daitoku Y, Michibata J, Arafiles JVV, Sakamoto K, Akishiba M, Takatani-Nakase T, Mizuno S, Sugiyama F, Imanishi M, Futaki S. L17ER4: A cell-permeable attenuated cationic amphiphilic lytic peptide. Bioorg Med Chem 2022; 61:116728. [PMID: 35395514 DOI: 10.1016/j.bmc.2022.116728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/25/2022] [Accepted: 03/27/2022] [Indexed: 11/29/2022]
Abstract
We have developed a series of attenuated cationic amphiphilic lytic (ACAL) peptides that can efficiently bring immunoglobulin G (IgG) and other functional proteins into cells. Delivery is generally achieved through the coadministration of ACAL peptides with cargo proteins. However, conjugation of ACAL peptides with cargos may be a promising approach for in vivo application to link in vivo outcomes of ACAL peptides and cargos. This study describes the creation of a new cell-permeable ACAL peptide, L17ER4. L17E is an optimized prototype of ACAL peptides previously developed in our laboratory for efficient delivery of IgGs into cells. Delivery was improved by functionalizing L17E with a tetra-arginine (R4) tag. Compared to the use of R8, a representative cell-penetrating peptide with high intracellular delivery efficacy, conjugation with L17ER4 afforded approximately four-fold higher cellular uptake of model small-molecule cargos (fluorescein isothiocyanate and HiBiT peptide). L17ER4 was also able to deliver proteins to cells. Fused with L17ER4, Cre recombinase was delivered into cells. Intracerebroventricular injection of Cre-L17ER4 into green red reporter mice, R26GRR, led to significant in vivo gene recombination in ependymal cells, suggesting that L17ER4 may be used as a cell-penetrating peptide for delivering protein therapeutics into cells in vivo.
Collapse
Affiliation(s)
- Kenta Shinga
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto 611-0011, Japan
| | - Takahiro Iwata
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto 611-0011, Japan
| | - Kazuya Murata
- Laboratory Animal Resource Center, Transborder Medical Research Center, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan
| | - Yoko Daitoku
- Laboratory Animal Resource Center, Transborder Medical Research Center, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan
| | - Junya Michibata
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto 611-0011, Japan
| | | | - Kentarou Sakamoto
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto 611-0011, Japan
| | - Misao Akishiba
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto 611-0011, Japan
| | - Tomoka Takatani-Nakase
- School of Pharmacy and Pharmaceutical Sciences, Mukogawa Women's University, Nishinomiya, Hyogo 663-8179, Japan; Institute for Bioscience, Mukogawa Women's University, Nishinomiya, Hyogo 663-8179, Japan
| | - Seiya Mizuno
- Laboratory Animal Resource Center, Transborder Medical Research Center, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan
| | - Fumihiro Sugiyama
- Laboratory Animal Resource Center, Transborder Medical Research Center, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan
| | - Miki Imanishi
- Institute for Chemical Research, Kyoto University Gokasho, Uji, Kyoto 611-0011, Japan
| | - Shiroh Futaki
- Laboratory Animal Resource Center, Transborder Medical Research Center, Faculty of Medicine, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki 305-8575, Japan.
| |
Collapse
|
2
|
Sakamoto K, Akishiba M, Iwata T, Arafiles JVV, Imanishi M, Futaki S. Use of homoarginine to obtain attenuated cationic membrane lytic peptides. Bioorg Med Chem Lett 2021; 40:127925. [PMID: 33705909 DOI: 10.1016/j.bmcl.2021.127925] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 02/18/2021] [Accepted: 02/25/2021] [Indexed: 01/19/2023]
Abstract
Our research group has been studying the design of intracellular delivery peptides based on cationic lytic peptides. By placing negatively charged amino acids on potentially hydrophobic faces of the peptides, membrane lytic activity is attenuated on the cell surface, whereas it recovers in endosomes, enabling cytosolic delivery of proteins including antibodies. These lytic peptides generally contain multiple lysines, facilitating cell surface interaction and membrane perturbation. This study evaluated the effect of lysine-to-homoarginine substitution using HAad as a model delivery peptide. The resulting peptide had a comparable or better delivery efficacy for Cre recombinase, antibodies, and the Cas9/sgRNA complex with one-quarter of the concentration of HAad, implying that a subtle structural difference can affect delivery activity.
Collapse
Affiliation(s)
- Kentarou Sakamoto
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Misao Akishiba
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Takahiro Iwata
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | | | - Miki Imanishi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Shiroh Futaki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan.
| |
Collapse
|