|
1
|
Yamaguchi S, Yamamoto K, Yamamoto R, Takamori S, Ishiwatari A, Minamihata K, Nagamune T, Okamoto A. Intracellular Protein Photoactivation Using Sterically Bulky Caging. Chembiochem 2022; 23:e202200476. [PMID: 36173993 DOI: 10.1002/cbic.202200476] [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: 08/16/2022] [Revised: 09/29/2022] [Indexed: 02/03/2023]
Abstract
Methods for intracellular protein photoactivation have been studied to elucidate the spatial and temporal roles of proteins of interest. In this study, an intracellular protein photoactivation method was developed using sterically bulky caging. The protein of interest was modified with biotin via a photocleavable linker, and then conjugated with streptavidin to sterically block the protein surface for inactivation. The caged protein was transduced into cells and reactivated by light-induced degradation of the conjugates. A cytotoxic protein, saporin, was caged and photoactivated both in vitro and in living cells with this method. This method achieved control of the cytotoxic activity in an off-on manner, introducing cell death selectively at the designed location using light. This simple and versatile photoactivation method is a promising tool for studying spatio-temporal cellular events that are related to intracellular proteins of interest.
Collapse
Affiliation(s)
- Satoshi Yamaguchi
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan
| | - Kazuho Yamamoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan
| | - Ryotaro Yamamoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan
| | - Satoshi Takamori
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan
| | - Akira Ishiwatari
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan
| | - Kosuke Minamihata
- Department of Applied Chemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, 819-0395, Fukuoka, Japan
| | - Teruyuki Nagamune
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan
| | - Akimitsu Okamoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656, Tokyo, Japan
| |
Collapse
|
|
2
|
Abstract
In biosciences and biotechnologies, it is recently critical to promote research regarding the regulation of the dynamic functions of proteins of interest. Light-induced control of protein activity is a strong tool for a wide variety of applications because light can be spatiotemporally irradiated in high resolutions. Therefore, synthetic, semi-synthetic, and genetic engineering techniques for photoactivation of proteins have been actively developed. In this review, the conventional approaches will be outlined. As a solution for overcoming barriers in conventional ones, our recent approaches in which proteins were chemically modified with biotinylated caging reagents are introduced to photo-activate a variety of proteins without genetic engineering and elaborate optimization. This review mainly focuses on protein caging and describes the concepts underlying the development of reported approaches that can contribute to the emergence of both novel protein photo-regulating methods and their killer applications.
Collapse
|
|
3
|
Yamaguchi S, Chujo K, Ohashi N, Minamihata K, Nagamune T. Photo‐Degradable Protein‐Polymer Hybrid Shells for Caging Living Cells. Chemistry 2022; 28:e202103941. [DOI: 10.1002/chem.202103941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Indexed: 11/08/2022]
Affiliation(s)
- Satoshi Yamaguchi
- Research Center for Advanced Science and Technology The University of Tokyo 4-6-1 Komaba, Meguro-ku Tokyo 153–8904 Japan
| | - Kazuki Chujo
- Department of Chemistry and Biotechnology The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113–8656 Japan
| | - Noriyuki Ohashi
- Department of Chemistry and Biotechnology The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113–8656 Japan
| | - Kosuke Minamihata
- Department of Applied Chemistry Graduate School of Engineering Kyushu University 744 Moto-oka Fukuoka 819–0395 Japan
| | - Teruyuki Nagamune
- Department of Chemistry and Biotechnology The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113–8656 Japan
| |
Collapse
|