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Kashiwada A, Taoka N, Chijimi Y, Noguchi K, Shigematsu K, Miura M, Suzuki T. Weakly acidic pH-responsive liposomal content release induced by histidine-modified agents. Org Biomol Chem 2024; 22:2844-2850. [PMID: 38516851 DOI: 10.1039/d4ob00216d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Internal stimuli-responsive controlled release from liposomal vesicles is an innovative approach for site-specific delivery of therapeutic drugs. In this study, to enhance the endosomal pH control of drug release from liposomes, a series of histidine-modified pH-sensitive Cn-His (n = 8, 12, 18) agents were designed and utilized as triggers for liposomal content release. The pH-dependent properties of Cn-His-incorporated liposomes were characterized using dynamic light scattering, ζ-potential, and fluorescence spectroscopy. The liposomes maintained a relatively uniform size across all pH conditions. However, the ζ-potential exhibited positive values at endosomal acidic pH levels and neutral or negative values at physiological pH levels. Furthermore, acidic pH-dependent release of both polar content (carboxyfluorescein) and nonpolar content (Nile red) was observed from the Cn-His-incorporated liposomes. Notably, with C12-His as the pH sensitizer, the pH dependence of liposomal content release was significantly evident. This work establishes endosomal pH-controllable liposome platforms, laying the groundwork for developing clinically applicable triggered release formulations.
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Affiliation(s)
- Ayumi Kashiwada
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 1-2-1, Izumi-cho, Narashino, Chiba, 275-8575, Japan.
- Department of Applied Molecular Chemistry, Graduate School of Industrial Technology, Nihon University, 1-2-1, Izumi-cho, Narashino, Chiba, 275-8575, Japan
| | - Narumi Taoka
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 1-2-1, Izumi-cho, Narashino, Chiba, 275-8575, Japan.
| | - Yukiha Chijimi
- Department of Applied Molecular Chemistry, College of Industrial Technology, Nihon University, 1-2-1, Izumi-cho, Narashino, Chiba, 275-8575, Japan.
| | - Keiko Noguchi
- Department of Applied Molecular Chemistry, Graduate School of Industrial Technology, Nihon University, 1-2-1, Izumi-cho, Narashino, Chiba, 275-8575, Japan
| | - Karin Shigematsu
- Laboratory of Molecular Chemistry, Faculty of Basic Pharmaceutical Sciences, School of Pharmacy, Nihon University, 7-7-1, Narashinodai, Funabashi, Chiba, 274-8555, Japan
| | - Motofumi Miura
- Laboratory of Molecular Chemistry, Faculty of Basic Pharmaceutical Sciences, School of Pharmacy, Nihon University, 7-7-1, Narashinodai, Funabashi, Chiba, 274-8555, Japan
| | - Toyofumi Suzuki
- Laboratory of Pharmaceutics, Faculty of Applied Pharmaceutical Sciences, School of Pharmacy, Nihon University, 7-7-1, Narashinodai, Funabashi, Chiba, 274-8555, Japan
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Qualls ML, Sagar R, Lou J, Best MD. Demolish and Rebuild: Controlling Lipid Self-Assembly toward Triggered Release and Artificial Cells. J Phys Chem B 2021; 125:12918-12933. [PMID: 34792362 DOI: 10.1021/acs.jpcb.1c07406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The ability to modulate the structures of lipid membranes, predicated on our nuanced understanding of the properties that drive and alter lipid self-assembly, has opened up many exciting biological applications. In this Perspective, we focus on two endeavors in which the same principles are invoked to achieve completely opposite results. On one hand, controlled liposome decomposition enables triggered release of encapsulated cargo through the development of synthetic lipid switches that perturb lipid packing in the presence of disease-associated stimuli. In particular, recent approaches have utilized artificial lipid switches designed to undergo major conformational changes in response to a range of target conditions. On the other end of the spectrum, the ability to drive the in situ formation of lipid bilayer membranes from soluble precursors is an important component in the establishment of artificial cells. This work has culminated in chemoenzymatic strategies that enable lipid manufacturing from simple components. Herein, we describe recent advancements in these two unique undertakings that are linked by their reliance on common principles of lipid self-assembly.
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Affiliation(s)
- Megan L Qualls
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - Ruhani Sagar
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - Jinchao Lou
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
| | - Michael D Best
- Department of Chemistry, University of Tennessee, 1420 Circle Drive, Knoxville, Tennessee 37996, United States
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Special Issue: Advances of Peptide Engineering. Processes (Basel) 2021. [DOI: 10.3390/pr9071096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Peptides have been gaining increasing attention for their applications in various fields, such as medical, biotechnological, and nanotechnological fields [...]
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