1
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Stefaniu C, Wölk C, Latza VM, Chumakov A, Brezesinski G, Schneck E. Cross-linking reactions in Langmuir monolayers of specially designed aminolipids - a toolbox for the customized production of amphiphilic nanosheets. NANOSCALE ADVANCES 2023; 5:4589-4597. [PMID: 37638167 PMCID: PMC10448339 DOI: 10.1039/d3na00244f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 08/09/2023] [Indexed: 08/29/2023]
Abstract
Synthetic amino lipids, already known as highly efficient gene therapy tool, are used in a novel way to create cross-linked stable one-molecule-thin films envisioned for future (bio)-materials applications. The films are prepared as Langmuir monolayers at the air/water interface and cross-linked 'in situ' via dynamic imine chemistry. The cross-linking process and the film characteristics are monitored by various surface-sensitive techniques such as grazing incidence X-ray diffraction, X-ray reflectivity, and infrared reflection-absorption spectroscopy. After transfer onto carbon grids, the cross-linked films are investigated by transmission and scanning electron microscopy. The obtained micrographs display mechanically self-supported nanosheets with area dimensions over several micrometers and, thus, an undeniable visual proof of successful cross-linking. The cross-linking process at the air/water interface allows to obtain Janus-faced sheets with a hydrophobic side characterized by aliphatic alkyl chains and a hydrophilic side characterized by nucleophilic groups like amines, hydroxyl groups and imine.
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Affiliation(s)
- Cristina Stefaniu
- Departments of Biomaterials and Biomolecular Systems, Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
| | - Christian Wölk
- Pharmaceutical Technology, Faculty of Medicine, University of Leipzig Eilenburger Str. 15a 04317 Leipzig Germany
| | - Victoria M Latza
- Departments of Biomaterials and Biomolecular Systems, Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
| | - Andrei Chumakov
- European Synchrotron Radiation Facility 71, avenue des Martyrs, CS 40220 38043 Grenoble Cedex 9 France
| | - Gerald Brezesinski
- Departments of Biomaterials and Biomolecular Systems, Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
- Department of Physics, TU Darmstadt Hochschulstr. 8 64289 Darmstadt Germany
| | - Emanuel Schneck
- Departments of Biomaterials and Biomolecular Systems, Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
- Department of Physics, TU Darmstadt Hochschulstr. 8 64289 Darmstadt Germany
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2
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Giselbrecht J, Pinnapireddy SR, Alioglu F, Sami H, Sedding D, Erdmann F, Janich C, Schulz-Siegmund M, Ogris M, Bakowsky U, Langner A, Bussmann J, Wölk C. Investigating 3R In Vivo Approaches for Bio-Distribution and Efficacy Evaluation of Nucleic Acid Nanocarriers: Studies on Peptide-Mimicking Ionizable Lipid. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107768. [PMID: 35355412 DOI: 10.1002/smll.202107768] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/10/2022] [Indexed: 06/14/2023]
Abstract
Formulations based on ionizable amino-lipids have been put into focus as nucleic acid delivery systems. Recently, the in vitro efficacy of the lipid formulation OH4:DOPE has been explored. However, in vitro performance of nanomedicines cannot correctly predict in vivo efficacy, thereby considerably limiting pre-clinical translation. This is further exacerbated by limited access to mammalian models. The present work proposes to close this gap by investigating in vivo nucleic acid delivery within simpler models, but which still offers physiologically complex environments and also adheres to the 3R guidelines (replace/reduce/refine) to improve animal experiments. The efficacy of OH4:DOPE as a delivery system for nucleic acids is demonstrated using in vivo approaches. It is shown that the formulation is able to transfect complex tissues using the chicken chorioallantoic membrane model. The efficacy of DNA and mRNA lipoplexes is tested extensively in the zebra fish (Danio rerio) embryo which allows the screening of biodistribution and transfection efficiency. Effective transfection of blood vessel endothelial cells is seen, especially in the endocardium. Both model systems allow an efficacy screening according to the 3R guidelines bypassing the in vitro-in vivo gap. Pilot studies in mice are performed to correlate the efficacy of in vivo transfection.
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Affiliation(s)
- Julia Giselbrecht
- Department of Medicinal Chemistry/Department of Pharmacology, Institute of Pharmacy Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany
| | - Shashank Reddy Pinnapireddy
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037, Marburg, Germany
- CSL Behring Innovation GmbH, Emil-von-Behring-Str. 76, 35041, Marburg, Germany
| | - Fatih Alioglu
- Faculty of Life Sciences, Department of Pharmaceutical Sciences, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, Vienna, 1090, Austria
| | - Haider Sami
- Faculty of Life Sciences, Department of Pharmaceutical Sciences, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, Vienna, 1090, Austria
| | - Daniel Sedding
- Internal Medicine III, Medical Faculty of Martin Luther University Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Germany
| | - Frank Erdmann
- Department of Medicinal Chemistry/Department of Pharmacology, Institute of Pharmacy Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany
| | - Christopher Janich
- Department of Medicinal Chemistry/Department of Pharmacology, Institute of Pharmacy Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany
| | - Michaela Schulz-Siegmund
- Pharmaceutical Technology, Medical Faculty, University Leipzig, Eilenburger Straße 15a, 04317, Leipzig, Germany
| | - Manfred Ogris
- Faculty of Life Sciences, Department of Pharmaceutical Sciences, Laboratory of MacroMolecular Cancer Therapeutics (MMCT), University of Vienna, Althanstrasse 14, Vienna, 1090, Austria
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037, Marburg, Germany
| | - Andreas Langner
- Department of Medicinal Chemistry/Department of Pharmacology, Institute of Pharmacy Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany
| | - Jeroen Bussmann
- Division of BioTherapeutics, Leiden Academic Center for Drug Research, Leiden University, Einsteinweg 55, Leiden, 2333 CC, The Netherlands
| | - Christian Wölk
- Pharmaceutical Technology, Medical Faculty, University Leipzig, Eilenburger Straße 15a, 04317, Leipzig, Germany
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3
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Janich C, Ivanusic D, Giselbrecht J, Janich E, Pinnapireddy SR, Hause G, Bakowsky U, Langner A, Wölk C. Efficient Transfection of Large Plasmids Encoding HIV-1 into Human Cells-A High Potential Transfection System Based on a Peptide Mimicking Cationic Lipid. Pharmaceutics 2020; 12:pharmaceutics12090805. [PMID: 32854383 PMCID: PMC7559901 DOI: 10.3390/pharmaceutics12090805] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 08/20/2020] [Accepted: 08/20/2020] [Indexed: 11/23/2022] Open
Abstract
One major disadvantage of nucleic acid delivery systems is the low transfection or transduction efficiency of large-sized plasmids into cells. In this communication, we demonstrate the efficient transfection of a 15.5 kb green fluorescent protein (GFP)-fused HIV-1 molecular clone with a nucleic acid delivery system prepared from the highly potent peptide-mimicking cationic lipid OH4 in a mixture with the phospholipid DOPE (co-lipid). For the transfection, liposomes were loaded using a large-sized plasmid (15.5 kb), which encodes a replication-competent HIV type 1 molecular clone that carries a Gag-internal green fluorescent protein (HIV-1 JR-FL Gag-iGFP). The particle size and charge of the generated nanocarriers with 15.5 kb were compared to those of a standardized 4.7 kb plasmid formulation. Stable, small-sized lipoplexes could be generated independently of the length of the used DNA. The transfer of fluorescently labeled pDNA-HIV1-Gag-iGFP in HEK293T cells was monitored using confocal laser scanning microscopy (cLSM). After efficient plasmid delivery, virus particles were detectable as budding structures on the plasma membrane. Moreover, we observed a randomized distribution of fluorescently labeled lipids over the plasma membrane. Obviously, a significant exchange of lipids between the drug delivery system and the cellular membranes occurs, which hints toward a fusion process. The mechanism of membrane fusion for the internalization of lipid-based drug delivery systems into cells is still a frequently discussed topic.
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Affiliation(s)
- Christopher Janich
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany; (J.G.); or (C.W.)
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany; (S.R.P.); (U.B.)
- Correspondence: (C.J.); (A.L.); Tel.: +49-3-455-52-5080 (C.J.); +49-3-419-71-1902 (A.L.)
| | - Daniel Ivanusic
- Robert Koch Institute, Division 18: HIV and Other Retroviruses, Nordufer 20, 13353 Berlin, Germany; (D.I.); (E.J.)
| | - Julia Giselbrecht
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany; (J.G.); or (C.W.)
| | - Elena Janich
- Robert Koch Institute, Division 18: HIV and Other Retroviruses, Nordufer 20, 13353 Berlin, Germany; (D.I.); (E.J.)
| | - Shashank Reddy Pinnapireddy
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany; (S.R.P.); (U.B.)
| | - Gerd Hause
- Biocenter, MLU Halle-Wittenberg, Weinbergweg 22, 06120 Halle (Saale), Germany;
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany; (S.R.P.); (U.B.)
| | - Andreas Langner
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany; (J.G.); or (C.W.)
- Correspondence: (C.J.); (A.L.); Tel.: +49-3-455-52-5080 (C.J.); +49-3-419-71-1902 (A.L.)
| | - Christian Wölk
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany; (J.G.); or (C.W.)
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, Leipzig University, Eilenburger Strasse 15a, 04317 Leipzig, Germany
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4
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Husteden C, Doberenz F, Goergen N, Pinnapireddy SR, Janich C, Langner A, Syrowatka F, Repanas A, Erdmann F, Jedelská J, Bakowsky U, Groth T, Wölk C. Contact-Triggered Lipofection from Multilayer Films Designed as Surfaces for in Situ Transfection Strategies in Tissue Engineering. ACS APPLIED MATERIALS & INTERFACES 2020; 12:8963-8977. [PMID: 32003972 DOI: 10.1021/acsami.9b18968] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Biomaterials, which release active compounds after implantation, are an essential tool for targeted regenerative medicine. In this study, thin multilayer films loaded with lipid/DNA complexes (lipoplexes) were designed as surface coatings for in situ transfection applicable in tissue engineering and regenerative medicine. The film production and embedding of lipoplexes were based on the layer-by-layer (LbL) deposition technique. Hyaluronic acid (HA) and chitosan (CHI) were used as the polyelectrolyte components. The embedded plasmid DNA was complexed using a new designed cationic lipid formulation, namely, OH4/DOPE 1/1, the advantageous characteristics of which have been proven already. Three different methods were tested regarding its efficiency of lipid and DNA deposition. Therefore, several surface specific analytics were used to characterize the LbL formation, the lipid DNA embedding, and the surface characteristics of the multilayer films, such as fluorescence microscopy, surface plasmon resonance spectroscopy, ellipsometry, zeta potential measurements, atomic force microscopy, and scanning electron microscopy. Interaction studies were conducted for optimized lipoplex-loaded polyelectrolyte multilayers (PEMs) that showed an efficient attachment of C2C12 cells on the surface. Furthermore, no acute toxic effects were found in cell culture studies, demonstrating biocompatibility. Cell culture experiments with C2C12 cells, a cell line which is hard to transfect, demonstrated efficient transfection of the reporter gene encoding for green fluorescent protein. In vivo experiments using the chicken embryo chorion allantois membrane animal replacement model showed efficient gene-transferring rates in living complex tissues, although the DNA-loaded films were stored over 6 days under wet and dried conditions. Based on these findings, it can be concluded that OH4/DOPE 1/1 lipoplex-loaded PEMs composed of HA and CHI can be an efficient tool for in situ transfection in regenerative medicine.
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Affiliation(s)
- Catharina Husteden
- Institute of Pharmacy, Department of Medicinal Chemistry , Martin Luther University Halle-Wittenberg , Wolfgang-Langenbeck-Str. 4 , 06120 Halle (Saale) , Germany
| | - Falko Doberenz
- Institute of Pharmacy, Department Biomedical Materials , Martin Luther University Halle-Wittenberg , Heinrich-Damerow-Str. 4 , 06120 Halle (Saale) , Germany
| | - Nathalie Goergen
- Department of Pharmaceutics and Biopharmaceutics , University of Marburg , Robert-Koch-Str. 4 , 35037 Marburg , Germany
| | - Shashank Reddy Pinnapireddy
- Department of Pharmaceutics and Biopharmaceutics , University of Marburg , Robert-Koch-Str. 4 , 35037 Marburg , Germany
| | - Christopher Janich
- Institute of Pharmacy, Department of Medicinal Chemistry , Martin Luther University Halle-Wittenberg , Wolfgang-Langenbeck-Str. 4 , 06120 Halle (Saale) , Germany
| | - Andreas Langner
- Institute of Pharmacy, Department of Medicinal Chemistry , Martin Luther University Halle-Wittenberg , Wolfgang-Langenbeck-Str. 4 , 06120 Halle (Saale) , Germany
| | - Frank Syrowatka
- Interdisciplinary Center of Materials Science , Martin-Luther-University Halle-Wittenberg , Heinrich-Damerow-Str. 4 , 06120 Halle (Saale) , Germany
| | - Alexandros Repanas
- Institute of Pharmacy, Department Biomedical Materials , Martin Luther University Halle-Wittenberg , Heinrich-Damerow-Str. 4 , 06120 Halle (Saale) , Germany
| | - Frank Erdmann
- Institute of Pharmacy, Department of Pharmacology , Martin Luther University Halle-Wittenberg , Wolfgang-Langenbeck-Str. 4 , 06120 Halle (Saale) , Germany
| | - Jarmila Jedelská
- Department of Pharmaceutics and Biopharmaceutics , University of Marburg , Robert-Koch-Str. 4 , 35037 Marburg , Germany
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics , University of Marburg , Robert-Koch-Str. 4 , 35037 Marburg , Germany
| | - Thomas Groth
- Institute of Pharmacy, Department Biomedical Materials , Martin Luther University Halle-Wittenberg , Heinrich-Damerow-Str. 4 , 06120 Halle (Saale) , Germany
- Interdisciplinary Center of Materials Science , Martin-Luther-University Halle-Wittenberg , Heinrich-Damerow-Str. 4 , 06120 Halle (Saale) , Germany
- Laboratory of Biomedical Nanotechnologies, Institute of Bionic Technologies and Engineering , I.M. Sechenov First Moscow State University , Trubetskaya Street 8 , 119991 Moscow , Russian Federation
| | - Christian Wölk
- Institute of Pharmacy, Department of Medicinal Chemistry , Martin Luther University Halle-Wittenberg , Wolfgang-Langenbeck-Str. 4 , 06120 Halle (Saale) , Germany
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine , Leipzig University , 04317 Leipzig , Germany
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5
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Stefaniu C, Wölk C, Brezesinski G, Schneck E. Relationship between structure and molecular interactions in monolayers of specially designed aminolipids. NANOSCALE ADVANCES 2019; 1:3529-3536. [PMID: 36133531 PMCID: PMC9418614 DOI: 10.1039/c9na00355j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 07/23/2019] [Indexed: 05/05/2023]
Abstract
Artificial cationic lipids are already recognized as highly efficient gene therapy tools. Here, we focus on another potential use of aminolipids, in their electrically-uncharged state, for the formation of covalently cross-linked, one-molecule-thin films at interfaces. Such films are envisioned for future (bio-)materials applications. To this end, Langmuir monolayers of structurally different aminolipids are comprehensively characterized with the help of highly sensitive surface characterization techniques. Pressure-area isotherms, Brewster angle microscopy, grazing-incidence X-ray diffraction and infrared reflection-absorption spectrometry experiments provide a detailed, comparative molecular picture of the formed monolayers. This physico-chemical study highlights the relationship between chemical structures and intermolecular interactions, which can serve as a basis for the rational design of cross-linked thin films with precisely controlled properties.
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Affiliation(s)
- Cristina Stefaniu
- Departments of Biomaterials and Biomolecular Systems, Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
| | - Christian Wölk
- Institute of Pharmacy, Research Group Biochemical Pharmacy, Martin-Luther-University Wolfgang-Langenbeck-Strasse 4 06120 Halle (Saale) Germany
| | - Gerald Brezesinski
- Departments of Biomaterials and Biomolecular Systems, Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
| | - Emanuel Schneck
- Departments of Biomaterials and Biomolecular Systems, Max Planck Institute of Colloids and Interfaces Am Mühlenberg 1 14476 Potsdam Germany
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6
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Tassler S, Dobner B, Lampp L, Ziółkowski R, Malinowska E, Wölk C, Brezesinski G. DNA Delivery Systems Based on Peptide-Mimicking Cationic Lipids-The Effect of the Co-Lipid on the Structure and DNA Binding Capacity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:4613-4625. [PMID: 30840475 PMCID: PMC6727600 DOI: 10.1021/acs.langmuir.8b04139] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 02/27/2019] [Indexed: 06/09/2023]
Abstract
In continuation of previous work, we present a new promising DNA carrier, OO4, a highly effective peptide-mimicking lysine-based cationic lipid. The structural characteristics of the polynucleotide carrier system OO4 mixed with the commonly used co-lipid DOPE and the saturated phospholipid DPPE have been studied in two-dimensional and three-dimensional model systems to understand their influence on the physical-chemical properties. The phase behavior of pure OO4 and its mixtures with DOPE and DPPE was studied at the air-water interface using a Langmuir film balance combined with infrared reflection-absorption spectroscopy. In bulk, the self-assembling structures in the presence and absence of DNA were determined by small-angle and wide-angle X-ray scattering. The amount of adsorbed DNA to cationic lipid bilayers was measured using a quartz crystal microbalance. The choice of the co-lipid has an enormous influence on the structure and capability of binding DNA. DOPE promotes the formation of nonlamellar lipoplexes (cubic and hexagonal structures), whereas DPPE promotes the formation of lamellar lipoplexes. The correlation of the observed structures with the transfection efficiency and serum stability indicates that OO4/DOPE 1:3 lipoplexes with a DNA-containing cubic phase encapsulated in multilamellar structures seem to be most promising.
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Affiliation(s)
- Stephanie Tassler
- Max
Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, Am Mühlenberg
1, 14476 Potsdam, Germany
| | - Bodo Dobner
- Institute
of Pharmacy, Martin-Luther-University (MLU)
Halle-Wittenberg, Wolfgang-Langenbeck-Straße
4, 06120 Halle (Saale), Germany
| | - Lisa Lampp
- Institute
of Pharmacy, Martin-Luther-University (MLU)
Halle-Wittenberg, Wolfgang-Langenbeck-Straße
4, 06120 Halle (Saale), Germany
| | - Robert Ziółkowski
- Faculty
of Chemistry, Department of Microbioanalytics, The Chair of Medical
Biotechnology, Warsaw University of Technology, ul. Noakowskiego 3, 00-664 Warszawa, Poland
| | - Elżbieta Malinowska
- Faculty
of Chemistry, Department of Microbioanalytics, The Chair of Medical
Biotechnology, Warsaw University of Technology, ul. Noakowskiego 3, 00-664 Warszawa, Poland
| | - Christian Wölk
- Institute
of Pharmacy, Martin-Luther-University (MLU)
Halle-Wittenberg, Wolfgang-Langenbeck-Straße
4, 06120 Halle (Saale), Germany
| | - Gerald Brezesinski
- Max
Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, Am Mühlenberg
1, 14476 Potsdam, Germany
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7
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Tassler S, Pawlowska D, Janich C, Dobner B, Wölk C, Brezesinski G. Lysine-based amino-functionalized lipids for gene transfection: the influence of the chain composition on 2D properties. Phys Chem Chem Phys 2018; 20:6936-6944. [PMID: 29464262 DOI: 10.1039/c8cp00047f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The influence of the chain composition on the physical-chemical properties will be discussed for five transfection lipids containing the same lysine-based head group. For this purpose, the chain composition will be gradually varied from saturated tetradecyl (C14:0) and hexadecyl (C16:0) chains to longer but unsaturated oleyl (C18:1) chains with double bonds in the cis configuration. In this work, we investigated the lipids as Langmuir monolayers at the air-water-interface in the absence and presence of calf thymus DNA applying different techniques such as infrared reflection absorption spectroscopy (IRRAS) and grazing incidence X-ray diffraction (GIXD). The replacement of saturated tetradecyl (C14:0) and hexadecyl (C16:0) chains by unsaturated oleyl (C18:1) chains increases the fluidity of the lipid monolayer: TH10 < TT10 < OH10 < OT10 < OO10 resulting in a smaller packing density. TH10 forms the stiffest and OO10 the most fluid monolayer in this structure-property study. OO10 has a higher protonation degree compared to the saturated lipids TT10 and TH10 as well as to the hybrids OT10 and OH10 because of a better accessibility of the amine groups. Depending on the bulk pH, different scenarios of DNA coupling to the lipid monolayers have been proposed.
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Affiliation(s)
- Stephanie Tassler
- Max Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, Am Mühlenberg 1, 14476 Potsdam, Germany.
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8
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Tassler S, Wölk C, Janich C, Dobner B, Brezesinski G. Lysine-based amino-functionalized lipids for gene transfection: the protonation state in monolayers at the air-liquid interface. Phys Chem Chem Phys 2018; 19:20271-20280. [PMID: 28726909 DOI: 10.1039/c7cp03107f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Cationic lipids are considered as non-viral carriers for genetic material used in gene therapy. They have no carcinogenic potential and cause low immune response compared to existing viral systems. The protonation degree of these cationic lipids is a crucial parameter for the binding behavior of polynucleotides (e.g., DNA). Newly synthesized peptide-mimic lysine-based amino-functionalized lipids have been investigated in 2D models as monolayers at the air-liquid interface. Standard surface pressure - area isotherms have been measured to prove the layer stability. Total reflection X-ray fluorescence (TRXF) has been used as a surface sensitive analytical method to estimate the amount of counterions at the head groups. Using a standard sample as a reference, the protonation degree of these cationic lipids can be quantified on buffers with different pH values. It is found that the protonation degree depends linearly on the packing density of the lipid monolayer.
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Affiliation(s)
- Stephanie Tassler
- Max Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, Am Mühlenberg 1, 14476 Potsdam, Germany.
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9
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Janich C, Hädicke A, Bakowsky U, Brezesinski G, Wölk C. Interaction of DNA with Cationic Lipid Mixtures-Investigation at Langmuir Lipid Monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:10172-10183. [PMID: 28873311 DOI: 10.1021/acs.langmuir.7b02014] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Four different binary lipid mixtures composed of a cationic lipid and the zwitterionic colipids DOPE or DPPC, which show different DNA transfer activities in cell culture models, were investigated at the soft air/water interface to identify transfection efficiency determining characteristics. Langmuir films are useful models to investigate the interaction between DNA and lipid mixtures in a two-dimensional model system by using different surface sensitive techniques, namely, epifluorescence microscopy and infrared reflection-absorption spectroscopy. Especially, the effect of adsorbed DNA on the properties of the lipid mixtures has been examined. Distinct differences between the lipid composites were found which are caused by the different colipids of the mixtures. DOPE containing lipid mixtures form fluid monolayers with a uniform distribution of the fluorescent probe in the presence and absence of DNA at physiologically relevant surface pressures. Only at high nonphysiological pressures, the lipid monolayer collapses and phase separation was observed if DNA was present in the subphase. In contrast, DPPC containing lipid mixtures show domains in the liquid condensed phase state in the presence and absence of DNA in the subphase. The adsorption of DNA at the positively charged mixed lipid monolayer induces phase separation which is expressed in the morphology and the point of appearance of these domains.
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Affiliation(s)
- Christopher Janich
- Martin Luther University Halle-Wittenberg , Institute of Pharmacy, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
| | - André Hädicke
- CUO-Recherche, Hôpital du Saint-Sacrement, Centre de recherche du CHU de Québec and Département d'ophtalmologie, Faculté de médecine, and Regroupement stratégique PROTEO, Université Laval , Québec, Québec, Canada
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, University Marburg , Ketzerbach 63, 35037 Marburg, Germany
| | - Gerald Brezesinski
- Max-Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm , Am Muehlenberg 1, 14476 Potsdam, Germany
| | - Christian Wölk
- Martin Luther University Halle-Wittenberg , Institute of Pharmacy, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
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10
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Wölk C, Janich C, Bakowsky U, Langner A, Brezesinski G. Malonic acid based cationic lipids - The way to highly efficient DNA-carriers. Adv Colloid Interface Sci 2017; 248:20-34. [PMID: 28842122 DOI: 10.1016/j.cis.2017.08.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 08/10/2017] [Accepted: 08/10/2017] [Indexed: 01/21/2023]
Abstract
Cationic lipids play an important role as non-viral nucleic acid carriers in gene therapy since 3 decades. This review will introduce malonic acid derived cationic lipids as nucleic acid carriers which appeared in the literature dealing with lipofection 10years ago. The family of amino-functionalized branched fatty acid amides will be presented as well as different generations of malonic acid diamides. Both groups of cationic lipids yield lipid mixtures with highly efficient nucleic acid transfer activities in in-vitro cell culture models. The DNA transfer screening of lipid libraries with directed structural variations in the lipophilic as well as in the hydrophilic part of the amphiphiles yields structure/activity relationships. Furthermore, the detailed characterizations of selected lipid composites at the air/water interface and in bulk systems are summarized with regard to transfection determining physical-chemical properties. The findings are also discussed in comparison to results obtained with other families of cationic lipids.
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Affiliation(s)
- Christian Wölk
- Martin Luther University Halle-Wittenberg, Institute of Pharmacy, Wolfgang-Langenbeck-Strasse 4, 06120 Halle, Saale, Germany.
| | - Christopher Janich
- Martin Luther University Halle-Wittenberg, Institute of Pharmacy, Wolfgang-Langenbeck-Strasse 4, 06120 Halle, Saale, Germany
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, University Marburg, Robert-Koch-Straße 4, 35037 Marburg, Germany
| | - Andreas Langner
- Martin Luther University Halle-Wittenberg, Institute of Pharmacy, Wolfgang-Langenbeck-Strasse 4, 06120 Halle, Saale, Germany
| | - Gerald Brezesinski
- Max Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, Am Mühlenberg 1, 14476 Potsdam, Germany.
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11
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Fast therapeutic DNA internalization – A high potential transfection system based on a peptide mimicking cationic lipid. Eur J Pharm Biopharm 2017; 118:38-47. [DOI: 10.1016/j.ejpb.2016.12.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 11/21/2016] [Accepted: 12/14/2016] [Indexed: 02/08/2023]
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12
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Janich C, Taßler S, Meister A, Hause G, Schäfer J, Bakowsky U, Brezesinski G, Wölk C. Structures of malonic acid diamide/phospholipid composites and their lipoplexes. SOFT MATTER 2016; 12:5854-66. [PMID: 27328379 DOI: 10.1039/c6sm00807k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
As a continuation of previous work, the self-assembly process of cationic lipid formulations in the presence and absence of DNA was investigated with respect to binary lipid mixtures suitable as polynucleotide carrier systems. The lipid blends consist of one malonic-acid-based cationic lipid with a varying alkyl chain pattern, either N-{6-amino-1-[N-(9Z)-octadec-9-enylamino]-1-oxohexan-(2S)-2-yl}-N'-{2-[N,N-bis(2-aminoethyl)amino]ethyl}-2-hexadecylpropandiamide () or N-[6-amino-1-oxo-1-(N-tetradecylamino)hexan-(2S)-2-yl]-N'-{2-[N,N-bis(2-aminoethyl)amino]ethyl}-2-hexadecylpropandiamide (), and one neutral co-lipid, either 1,2-di-[(9Z)-octadec-9-enoyl]-sn-glycero-3-phosphocholine (DOPE) or 1,2-di-(hexadecanoyl)-sn-glycero-3-phosphocholine (DPPC). Although the cationic lipids exhibit only slight differences in their structure, the DNA transfer efficiency varies drastically. Therefore, self-assembly was studied in 3D systems by small- and wide-angle X-ray scattering (SAXS and WAXS) and transmission electron microscopy (TEM) as well as in 2D systems by infrared reflection-absorption spectroscopy (IRRAS) on Langmuir films. The investigated lipid mixtures show quite different self-assembly in the absence of DNA, with varying structures from vesicles (/DOPE; /DOPE) and tubes (/DOPE) to discoid structures (/DPPC; /DPPC). Twisted ribbons and sheets, which were stabilized due to hydrogen-bond networks, were found in all investigated lipid mixtures in the absence of DNA. The addition of DNA leads to the formation of lamellar lipoplexes for all the investigated lipid compositions. The lipoplexes differ in crucial parameters, such as the lamellar repeat distance and the spacing between the DNA strands, indicating differences in the binding strength between DNA and the lipid composition. The formation of associates with an ideal charge density might emerge as a key parameter for efficient DNA transfer. Furthermore, the structures observed for the different lipid compositions in the absence of DNA prepare the way for other applications besides gene therapy.
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Affiliation(s)
- Christopher Janich
- Martin Luther University Halle-Wittenberg, Institute of Pharmacy, Wolfgang-Langenbeck-Strasse 4, 06120 Halle, Saale, Germany. and Philipps University Marburg, Department of Pharmaceutical Technology and Biopharmacy, Ketzerbach 63, 35037 Marburg, Germany
| | - Stephanie Taßler
- Max Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Annette Meister
- Martin Luther University Halle-Wittenberg, Institute of Chemistry, Physical Chemistry and Institute of Biochemistry and Biotechnology, von-Danckelmann-Platz 4, 06120 Halle, Saale, Germany
| | - Gerd Hause
- Martin Luther University Halle-Wittenberg, Biocenter, Weinbergweg 22, 06120 Halle, Saale, Germany
| | - Jens Schäfer
- Philipps University Marburg, Department of Pharmaceutical Technology and Biopharmacy, Ketzerbach 63, 35037 Marburg, Germany
| | - Udo Bakowsky
- Philipps University Marburg, Department of Pharmaceutical Technology and Biopharmacy, Ketzerbach 63, 35037 Marburg, Germany
| | - Gerald Brezesinski
- Max Planck Institute of Colloids and Interfaces, Science Park Potsdam-Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Christian Wölk
- Martin Luther University Halle-Wittenberg, Institute of Pharmacy, Wolfgang-Langenbeck-Strasse 4, 06120 Halle, Saale, Germany.
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13
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Composites of malonic acid diamides and phospholipids — Impact of lipoplex stability on transfection efficiency. J Control Release 2015; 220:295-307. [DOI: 10.1016/j.jconrel.2015.10.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 10/22/2015] [Accepted: 10/24/2015] [Indexed: 01/09/2023]
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14
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Wölk C, Janich C, Meister A, Drescher S, Langner A, Brezesinski G, Bakowsky U. Investigation of Binary Lipid Mixtures of a Three-Chain Cationic Lipid with Phospholipids Suitable for Gene Delivery. Bioconjug Chem 2015; 26:2461-73. [PMID: 26471337 DOI: 10.1021/acs.bioconjchem.5b00505] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In the present work, we characterize binary lipid mixtures consisting of a three-chain amino-functionalized cationic lipid (DiTT4) with different phospholipids, namely, 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE), 1,2-dimyristoyl-sn-glycero-3-phosphoethanolamine (DMPE), or 1,2-dimyristoyl-sn-glycero-3-phosphocholine (DMPC). The mixing behavior was investigated by differential scanning calorimetry (DSC). Additionally, aqueous dispersions of the binary mixtures were characterized by means of dynamic light scattering (DLS), laser Doppler electrophoresis, and transmission electron microscopy (TEM) to get further information about particle size, charge, and shape. The complex formation between different binary lipid mixtures and plasmid DNA (pDNA) was investigated by zeta-(ζ)-potential (laser Doppler electrophoresis) and DLS measurements, and the lipid/DNA complexes (lipoplexes) were screened for efficient DNA transfer (transfection) in cell culture. Finally, efficient lipid compositions were investigated with respect to serum stability. This work provides a detailed characterization of the cationic lipid mixtures as foundation for further research. Efficient gene transfer in the presence of serum was demonstrated for selected lipoplexes showing their capability to be used as high-potency gene delivery vehicles.
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Affiliation(s)
- Christian Wölk
- Philipps University Marburg , Department of Pharmaceutical Technology and Biopharmaceutics, Ketzerbach 63, 35037 Marburg, Germany.,Martin Luther University (MLU) Halle-Wittenberg , Institute of Pharmacy, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
| | - Christopher Janich
- Martin Luther University (MLU) Halle-Wittenberg , Institute of Pharmacy, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
| | - Annette Meister
- MLU Halle-Wittenberg , Center for Structure and Dynamics of Proteins (MZP), Weinbergweg 22, 06120 Halle (Saale), Germany
| | - Simon Drescher
- Martin Luther University (MLU) Halle-Wittenberg , Institute of Pharmacy, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
| | - Andreas Langner
- Martin Luther University (MLU) Halle-Wittenberg , Institute of Pharmacy, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
| | - Gerald Brezesinski
- Max Planck Institute of Colloids and Interfaces , Science Park Potsdam-Golm, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Udo Bakowsky
- Philipps University Marburg , Department of Pharmaceutical Technology and Biopharmaceutics, Ketzerbach 63, 35037 Marburg, Germany
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Wölk C, Janich C, Pawlowska D, Drescher S, Meister A, Hause G, Dobner B, Langner A, Brezesinski G. Lamellar versus Micellar Structures-Aggregation Behavior of a Three-Chain Cationic Lipid Designed for Nonviral Polynucleotide Transfer. Chemphyschem 2015; 16:2115-26. [DOI: 10.1002/cphc.201500188] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Indexed: 11/06/2022]
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16
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Drescher S, Meister A, Garamus VM, Hause G, Garvey CJ, Dobner B, Blume A. Phenylene bolaamphiphiles: Influence of the substitution pattern on the aggregation behavior and the miscibility with classical phospholipids. EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201300387] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Simon Drescher
- Martin-Luther-Universitaet (MLU) Halle-Wittenberg; Institute of Pharmacy; Halle (Saale) Germany
| | - Annette Meister
- Center for structure and dynamics of proteins (MZP); MLU Halle-Wittenberg; Halle (Saale) Germany
| | - Vasil M. Garamus
- Helmholtz-Zentrum Geesthacht (HZG); Centre for Materials and Coastal Research; Geesthacht Germany
| | - Gerd Hause
- Biocenter; MLU Halle-Wittenberg; Halle (Saale) Germany
| | | | - Bodo Dobner
- Martin-Luther-Universitaet (MLU) Halle-Wittenberg; Institute of Pharmacy; Halle (Saale) Germany
| | - Alfred Blume
- MLU Halle-Wittenberg; Institute of Chemistry; Halle (Saale) Germany
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