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Nobeyama T, Yoshida T, Shiraki K. Interfacial and intrinsic molecular effects on the phase separation/transition of heteroprotein condensates. Int J Biol Macromol 2024; 254:128095. [PMID: 37972831 DOI: 10.1016/j.ijbiomac.2023.128095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/31/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
Liquid-liquid phase separation (LLPS) and droplet formation by LLPS are key concepts used to explain compartmentalization in living cells. Protein contact to a membrane surface is considered an important process for protein organization in a liquid phase or during transition to a solid or liquid dispersion state. The direct experimental comprehensive investigation is; however, not performed on the surface-droplet interaction and phase transition. In the present study, we constructed simple and reproducible experiments to analyze the structural transition of aggregates and droplets in an ovalbumin (OVA) and lysozyme (LYZ) complex on glass slides with various coatings. The difference in droplet-surface interaction may only be important in the boundary region between aggregates and droplets of a protein mixture, as shown in the phase diagram. Co-aggregates of OVA-LYZ changed to droplet-like circular forms during incubation. In contrast, free l-lysine resulted in the uniform droplet-to-solid phase separation at lower concentrations and dissolved any structures at higher concentrations. These results represent the first phase-diagram-based analysis of the phase transition of droplets in a protein mixture and a comparison of surface-surface and small molecular-droplet structure interactions.
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Affiliation(s)
- Tomohiro Nobeyama
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan.
| | - Toya Yoshida
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
| | - Kentaro Shiraki
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
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Nobeyama T, Tataka K, Mori M, Murakami T, Yamada Y, Shiraki K. Synthesis of Butterfly-Like Shaped Gold Nanomaterial: For the Regulation of Liquid-Liquid Phase-Separated Biomacromolecule Droplets. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300362. [PMID: 37596729 DOI: 10.1002/smll.202300362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 07/31/2023] [Indexed: 08/20/2023]
Abstract
Nanotechnology is a critical tool to manipulate the sophisticated behavior of biological structures and has provided new research fields. Liquid-liquid phase-separated (LLPS) droplets gather attention as basic reaction fields in a living cell. Droplets play critical roles in regulating protein behavior, including enzyme compartmentalization, stress response, and disease pathogenesis. The dynamic manipulation of LLPS droplet formation/deformation has become a crucial target in nanobiotechnology. However, the development of nanodevices specifically designed for this purpose remains a challenge. Therefore, this study presents butterfly-shaped gold nanobutterflies (GNBs) as novel nanodevices for manipulating LLPS droplet dynamics. The growth process of the GNBs is analyzed via time-lapse electroscopic imaging, time-lapse spectroscopy, and additives assays. Interestingly, GNBs demonstrate the ability to induce LLPS droplet formation in systems such as adenosine triphosphate/poly-l-lysine and human immunoglobulin G, whereas spherical and rod-shaped gold nanoparticles exhibit no such capability. This indicates that the GNB concave surface interacts with the droplet precursors facilitating the LLPS droplet formation. Near-infrared-laser irradiation applied to GNBs enables on-demand deformation of the droplets through localized heat effects. GNB regulates the enzymatic reaction of lysozymes. The innovative design of GNBs presents a promising strategy for manipulating LLPS dynamics and offers exciting prospects for future research.
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Affiliation(s)
- Tomohiro Nobeyama
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Koji Tataka
- Graduate School of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
- Human Life Technology Research, Toyama Industrial Technology Research and Development Center, 35-1 Iwatakeshin, Nanto, Toyama, 939-1503, Japan
| | - Megumi Mori
- Faculty of Agriculture, Kyoto University, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Tatsuya Murakami
- Graduate School of Engineering, Toyama Prefectural University, 5180 Kurokawa, Imizu, Toyama, 939-0398, Japan
| | - Yoichi Yamada
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
| | - Kentaro Shiraki
- Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8573, Japan
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Fukuda R, Tani M, Shibukawa S, Nobeyama T, Nomura T, Kato Y, Murakami T. Effects of lipoprotein nanoparticles' composition and size on their internalization in plant and mammalian cells. Genes Cells 2023; 28:881-892. [PMID: 37850683 DOI: 10.1111/gtc.13075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 10/02/2023] [Accepted: 10/05/2023] [Indexed: 10/19/2023]
Abstract
The internalization of engineered high-density lipoprotein nanoparticles (engineered lipoproteins [eLPs]) with different lipid and protein compositions, zeta potentials, and/or sizes were analyzed in representative plant and mammalian cells. The impact of the addition of a cell-penetrating peptide to eLPs on the internalization was very small in Bright Yellow (BY)-2 protoplasts compared with HeLa cells. When eLPs were prepared with one of the abundant lipids in BY-2 cells, digalactosyldiacylglycerol (DGDG) (eLP4), its internalization was dramatically increased only in HeLa cells. Such an increase in HeLa cells was also obtained for liposomes containing DGDG in a DGDG content-dependent manner. Increasing the size and zeta potential of eLPs improved their internalization in both HeLa cells and in BY-2 protoplasts but to quite varying degrees. Although eLPs tended to stay at the plasma membrane (PM) in BY-2 protoplasts with much less internalization, the PM-bound eLPs somehow promoted the internalization of coexisting nanobeads in cell culture media. These results provide fundamental insight into the future design of lipid nanoparticles for drug delivery in mammalian and plant cells.
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Affiliation(s)
- Ryosuke Fukuda
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, Toyama, Japan
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
| | - Misaki Tani
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Shiori Shibukawa
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Tomohiro Nobeyama
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Taiji Nomura
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Yasuo Kato
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
| | - Tatsuya Murakami
- Department of Pharmaceutical Engineering, Faculty of Engineering, Toyama Prefectural University, Toyama, Japan
- Biotechnology Research Center, Toyama Prefectural University, Toyama, Japan
- Department of Biotechnology, Graduate School of Engineering, Toyama Prefectural University, Toyama, Japan
- Institute for Integrated Cell-Material Sciences (iCeMS), Kyoto University, Kyoto, Japan
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Tian Q, Guo Y, Li D, Dong L. Hybrid Gastric Cancer Exosome as Potential Drug Carrier for Targeted Gastric Cancer Therapy. J BIOMATER TISS ENG 2022. [DOI: 10.1166/jbt.2022.3167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Gastric cancer is among the leading lethal cancer types in the world. However, its five year survival rate is far from satisfactory. Therefore, the development of targeted cancer gastric cancer therapy is a promising way to cure gastric cancer. Gastric cancer exosome is reported to
have high caner targeting efficacy, but its yield is relatively low. Herein, we proposed a facile way to construct hybrid gastric cancer exosome (HGCE) with high yield as potential drug carrier for targeted gastric cancer therapy. The doxorubicin (Dox) loaded HGCE (Dox/HGCE) was developed
as drug delivery system (DDS) to treat gastric cancer. In vitro and in vivo results demonstrated that Dox/HGCE showed not only high and specific homing ability to the gastric cancer cells (SGC7901) but also good anticancer performance which can be a promising DDS for gastric
cancer therapy.
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Affiliation(s)
- Qing Tian
- Department of Thoracic Surgery, The First Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, 050031, China
| | - Ying Guo
- Department of Oncology, The First Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, 050031, China
| | - Dan Li
- Department of Thoracic Surgery, Jingxing County Hospital, Shijiazhuang City, Hebei Province, 050030, China
| | - Liang Dong
- Department of Medical, The First Hospital of Hebei Medical University, Shijiazhuang City, Hebei Province, 050031, China
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Yablonskii S, Bodnarchuk V, Geivandov A, Romero-Hasler P, Soto-Bustamante E, Morales J. Dember photovoltaic effect as method for structural characterization of phospholipidic membranes. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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