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Martin J, Li YM, Gilchrist ML. Supported Biomembrane Systems Incorporating Multiarm Polymers and Bioorthogonal Tethering. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:11401-11410. [PMID: 38767862 PMCID: PMC11155251 DOI: 10.1021/acs.langmuir.4c00176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 04/19/2024] [Accepted: 05/01/2024] [Indexed: 05/22/2024]
Abstract
To functionalize interfaces with supported biomembranes and membrane proteins, the challenge is to build stabilized and supported systems that mimic the native lipid microenvironment. Our objective is to control substrate-to-biomembrane spacing and the tethering chemistry so proteoliposomes can be fused and conjugated without perturbation of membrane protein function. Furthermore, the substrates need to exhibit low protein and antibody nonspecific binding to use these systems in assays. We have employed protein orthogonal coupling schemes in concert with multiarm poly(ethylene glycol) (PEG) technology to build supported biomembranes on microspheres. The lipid bilayer structures and tailored substrates of the microsphere-supported biomembranes were analyzed via flow cytometry, confocal fluorescence, and super-resolution imaging microscopy, and the lateral fluidity was quantified using fluorescence recovery after photobleaching (FRAP) techniques. Under these conditions, the 4-arm-PEG20,000-NH2 based configuration gave the most desirable tethering system based on lateral diffusivity and coverage.
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Affiliation(s)
- Jesse
A. Martin
- Department
of Chemical Engineering and the Department of Biomedical Engineering, The City College of the City University of New York, 140th Street and Convent Avenue, New York, New York 10031, United States
| | - Yue-Ming Li
- Chemical
Biology Program, Memorial Sloan-Kettering
Cancer Center, 1275 York Avenue, New York, New York 10065, United States
| | - M. Lane Gilchrist
- Department
of Chemical Engineering and the Department of Biomedical Engineering, The City College of the City University of New York, 140th Street and Convent Avenue, New York, New York 10031, United States
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Mohammed-Sadhakathullah AHM, Paulo-Mirasol S, Torras J, Armelin E. Advances in Functionalization of Bioresorbable Nanomembranes and Nanoparticles for Their Use in Biomedicine. Int J Mol Sci 2023; 24:10312. [PMID: 37373461 PMCID: PMC10299464 DOI: 10.3390/ijms241210312] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Bioresorbable nanomembranes (NMs) and nanoparticles (NPs) are powerful polymeric materials playing an important role in biomedicine, as they can effectively reduce infections and inflammatory clinical patient conditions due to their high biocompatibility, ability to physically interact with biomolecules, large surface area, and low toxicity. In this review, the most common bioabsorbable materials such as those belonging to natural polymers and proteins for the manufacture of NMs and NPs are reviewed. In addition to biocompatibility and bioresorption, current methodology on surface functionalization is also revisited and the most recent applications are highlighted. Considering the most recent use in the field of biosensors, tethered lipid bilayers, drug delivery, wound dressing, skin regeneration, targeted chemotherapy and imaging/diagnostics, functionalized NMs and NPs have become one of the main pillars of modern biomedical applications.
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Affiliation(s)
- Ahammed H. M. Mohammed-Sadhakathullah
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, 08019 Barcelona, Spain; (A.H.M.M.-S.); (S.P.-M.)
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.S, 08019 Barcelona, Spain
| | - Sofia Paulo-Mirasol
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, 08019 Barcelona, Spain; (A.H.M.M.-S.); (S.P.-M.)
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.S, 08019 Barcelona, Spain
| | - Juan Torras
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, 08019 Barcelona, Spain; (A.H.M.M.-S.); (S.P.-M.)
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.S, 08019 Barcelona, Spain
| | - Elaine Armelin
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, 08019 Barcelona, Spain; (A.H.M.M.-S.); (S.P.-M.)
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.S, 08019 Barcelona, Spain
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Wei Y, He T, Bi Q, Yang H, Hu X, Jin R, Liang H, Zhu Y, Tong R, Nie Y. A cationic lipid with advanced membrane fusion performance for pDNA and mRNA delivery. J Mater Chem B 2023; 11:2095-2107. [PMID: 36810919 DOI: 10.1039/d2tb02783f] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The success of mRNA vaccines for COVID-19 prevention raised global awareness of the importance of nucleic acid drugs. The approved systems for nucleic acid delivery were mainly formulations of different lipids, yielding lipid nanoparticles (LNPs) with complex internal structures. Due to the multiple components, the relationship between the structure of each component and the overall biological activity of LNPs is hard to study. However, ionizable lipids have been extensively explored. In contrast to former studies on the optimization of hydrophilic parts in single-component self-assemblies, we report in this study on structural alterations of the hydrophobic segment. We synthesize a library of amphiphilic cationic lipids by varying the lengths (C = 8-18), numbers (N = 2, 4), and unsaturation degrees (Ω = 0, 1) of hydrophobic tails. Notably, all self-assemblies with nucleic acid have significant differences in particle size, stability in serum, membrane fusion, and fluidity. Moreover, the novel mRNA/pDNA formulations are characterized by overall low cytotoxicity, efficient compaction, protection, and release of nucleic acids. We find that the length of hydrophobic tails dominates the formation and stability of the assembly. And at a certain length, the unsaturated hydrophobic tails enhance the membrane fusion and fluidity of assemblies and thus significantly affect the transgene expression, followed by the number of hydrophobic tails.
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Affiliation(s)
- Yu Wei
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Ting He
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Qunjie Bi
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Huan Yang
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Xueyi Hu
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Rongrong Jin
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
| | - Hong Liang
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China. .,Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Yongqun Zhu
- Life Sciences Institute and Innovation Center for Cell Signaling Network, Zhejiang University, Hangzhou 310058, China
| | - Rongsheng Tong
- Department of Pharmacy, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China. .,Personalized Drug Therapy Key Laboratory of Sichuan Province, School of Medicine, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Yu Nie
- National Engineering Research Center for Biomaterials/College of Biomedical Engineering, Sichuan University, Chengdu 610064, China.
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Tunable cell-surface mimetics as engineered cell substrates. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2018; 1860:2076-2093. [PMID: 29935145 DOI: 10.1016/j.bbamem.2018.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 05/18/2018] [Accepted: 06/08/2018] [Indexed: 12/21/2022]
Abstract
Most recent breakthroughs in understanding cell adhesion, cell migration, and cellular mechanosensitivity have been made possible by the development of engineered cell substrates of well-defined surface properties. Traditionally, these substrates mimic the extracellular matrix (ECM) environment by the use of ligand-functionalized polymeric gels of adjustable stiffness. However, such ECM mimetics are limited in their ability to replicate the rich dynamics found at cell-cell contacts. This review focuses on the application of cell surface mimetics, which are better suited for the analysis of cell adhesion, cell migration, and cellular mechanosensitivity across cell-cell interfaces. Functionalized supported lipid bilayer systems were first introduced as biomembrane-mimicking substrates to study processes of adhesion maturation during adhesion of functionalized vesicles (cell-free assay) and plated cells. However, while able to capture adhesion processes, the fluid lipid bilayer of such a relatively simple planar model membrane prevents adhering cells from transducing contractile forces to the underlying solid, making studies of cell migration and cellular mechanosensitivity largely impractical. Therefore, the main focus of this review is on polymer-tethered lipid bilayer architectures as biomembrane-mimicking cell substrate. Unlike supported lipid bilayers, these polymer-lipid composite materials enable the free assembly of linkers into linker clusters at cellular contacts without hindering cell spreading and migration and allow the controlled regulation of mechanical properties, enabling studies of cellular mechanosensitivity. The various polymer-tethered lipid bilayer architectures and their complementary properties as cell substrates are discussed.
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