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Miyazaki M, Arisaka C, Nakagawara A, Sasaki N, Takahashi H, Takagi T, Amii H, Sonoyama M. Thermodynamic study on hydrated bilayers of ether-linked phosphatidylcholines with terminal perfluorobutyl group. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2024; 1866:184261. [PMID: 38101595 DOI: 10.1016/j.bbamem.2023.184261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/01/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
Novel terminally perfluorobutyl group-containing ether-linked phosphatidylcholines with different alkyl chain lengths (di-O-F4-Cn-PCs, n = 14,16 and 18) were developed as possible materials for stable liposomes aiming at applications of structural and functional analyses of membrane proteins. Differential scanning calorimetric investigations of the thermotropic transition of hydrated di-O-F4-Cn-PC bilayers demonstrated that the transition temperature of every di-O-F4-Cn-PC decreases by ~20 °C compared to their corresponding non-fluorinated PCs, di-O-Cn-PCs. With the elongation of the hydrophobic chain, on the other hand, the transition enthalpy (ΔH) and entropy (ΔS) increased in a linear manner. Comparison of ΔH and ΔS values against the net hydrocarbon chain length between di-O-F4-Cn-PCs and di-O-Cn-PCs strongly suggests that in the thermotropic transition of the di-O-F4-Cn-PC membrane, the perfluorobutyl segments undergo very limited structural changes; therefore, the hydrocarbon segments are mainly responsible for the phase transition.
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Affiliation(s)
- Masaya Miyazaki
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Chika Arisaka
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Ai Nakagawara
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Nanako Sasaki
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Hiroshi Takahashi
- Division of Pure and Applied Science, Graduate School of Science and Technology, Gunma University, Maebashi, Gunma 371-8510, Japan.
| | - Toshiyuki Takagi
- Cellular and Molecular Biotechnology Research Institute, AIST, Tsukuba, Ibaraki 305-8565, Japan.
| | - Hideki Amii
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan; Gunma University Initiative for Advanced Research (GIAR), Gunma University, Kiryu, Gunma 376-8515, Japan
| | - Masashi Sonoyama
- Division of Molecular Science, Graduate School of Science and Technology, Gunma University, Kiryu, Gunma 376-8515, Japan; Gunma University Initiative for Advanced Research (GIAR), Gunma University, Kiryu, Gunma 376-8515, Japan; Gunma University Center for Food Science and Wellness (GUCFW), Gunma University, Kiryu, Gunma 376-8515, Japan.
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2
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Romero EL, Morilla MJ. Ether lipids from archaeas in nano-drug delivery and vaccination. Int J Pharm 2023; 634:122632. [PMID: 36690132 DOI: 10.1016/j.ijpharm.2023.122632] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/26/2022] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Abstract
Archaea are microorganisms more closely related to eukaryotes than bacteria. Almost 50 years after being defined as a new domain of life on earth, new species continue to be discovered and their phylogeny organized. The study of the relationship between their genetics and metabolism and some of their extreme habitats has even positioned them as a model of extraterrestrial life forms. Archaea, however, are deeply connected to the life of our planet: they can be found in arid, acidic, warm areas; on most of the earth's surface, which is cold (below 5 °C), playing a prominent role in the cycles of organic materials on a global scale and they are even part of our microbiota. The constituent materials of these microorganisms differ radically from those produced by eukaryotes and bacteria, and the nanoparticles that can be manufactured using their ether lipids as building blocks exhibit unique properties that are of interest in nanomedicine. Here, we present for the first time a complete overview of the pre-clinical applications of nanomedicines based on ether archaea lipids, focused on drug delivery and adjuvancy over the last 25 years, along with a discussion on their pros, cons and their future industrial implementation.
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Affiliation(s)
- Eder Lilia Romero
- Nanomedicines Research and Development Centre (NARD), Science and Technology Department, National University of Quilmes, Roque Sáenz Peña 352, Bernal, Buenos Aires, Argentina.
| | - Maria Jose Morilla
- Nanomedicines Research and Development Centre (NARD), Science and Technology Department, National University of Quilmes, Roque Sáenz Peña 352, Bernal, Buenos Aires, Argentina
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3
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Hemetsberger A, Preis E, Engelhardt K, Gutberlet B, Runkel F, Bakowsky U. Highly Stable Liposomes Based on Tetraether Lipids as a Promising and Versatile Drug Delivery System. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6995. [PMID: 36234336 PMCID: PMC9571198 DOI: 10.3390/ma15196995] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 10/05/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Conventional liposomes often lack stability, limiting their applicability and usage apart from intravenous routes. Nevertheless, their advantages in drug encapsulation and physicochemical properties might be helpful in oral and pulmonary drug delivery. This study investigated the feasibility and stability of liposomes containing tetraether lipids (TEL) from Thermoplasma acidophilum. Liposomes composed of different molar ratios of TEL:Phospholipon 100H (Ph) were produced and exposed to various temperature and pH conditions. The effects on size, polydispersity index, and zeta potential were examined by dynamic and electrophoretic light scattering. Autoclaving, which was considered an additional process step after fabrication, could minimize contamination and prolong shelf life, and the stability after autoclaving was tested. Moreover, 5(6)-carboxyfluorescein leakage was measured after incubation in the presence of fetal calf serum (FCS) and lung surfactant (Alveofact). The incorporation of TEL into the liposomes significantly impacted the stability against low pH, higher temperatures, and even sterilization by autoclaving. The stability of liposomes containing TEL was confirmed by atomic force microscopy as images revealed similar sizes and morphology before and after incubation with FCS. It could be concluded that increasing the molar ratio in the TEL:Ph liposome formulations improved the structural stability against high temperature, low pH, sterilization via autoclaving, and the presence of FCS and lung surfactant.
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Affiliation(s)
- Aybike Hemetsberger
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
| | - Eduard Preis
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
| | - Konrad Engelhardt
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
| | - Bernd Gutberlet
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
| | - Frank Runkel
- Institute of Bioprocess Engineering and Pharmaceutical Technology, University of Applied Sciences Mittelhessen, Wiesenstrasse 14, 35390 Giessen, Germany
- Faculty of Biology and Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Robert-Koch-Str. 4, 35037 Marburg, Germany
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4
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Vesicular and Planar Membranes of Archaea Lipids: Unusual Physical Properties and Biomedical Applications. Int J Mol Sci 2022; 23:ijms23147616. [PMID: 35886964 PMCID: PMC9319432 DOI: 10.3390/ijms23147616] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 06/27/2022] [Accepted: 06/27/2022] [Indexed: 12/12/2022] Open
Abstract
Liposomes and planar membranes made of archaea or archaea-like lipids exhibit many unusual physical properties compared to model membranes composed of conventional diester lipids. Here, we review several recent findings in this research area, which include (1) thermosensitive archaeosomes with the capability to drastically change the membrane surface charge, (2) MthK channel's capability to insert into tightly packed tetraether black lipid membranes and exhibit channel activity with surprisingly high calcium sensitivity, and (3) the intercalation of apolar squalane into the midplane space of diether bilayers to impede proton permeation. We also review the usage of tetraether archaeosomes as nanocarriers of therapeutics and vaccine adjuvants, as well as the biomedical applications of planar archaea lipid membranes. The discussion on archaeosomal therapeutics is focused on partially purified tetraether lipid fractions such as the polar lipid fraction E (PLFE) and glyceryl caldityl tetraether (GCTE), which are the main components of PLFE with the sugar and phosphate removed.
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Membrane properties of amacrocyclic tetraether bisphosphatidylcholine lipid: Effect of a single membrane-spanning polymethylene cross-linkage between two head groups of ditetradecylphosphatidylcholine membrane. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2021; 1863:183569. [PMID: 33549531 DOI: 10.1016/j.bbamem.2021.183569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/14/2021] [Accepted: 01/27/2021] [Indexed: 11/23/2022]
Abstract
The plasma membranes of archaea are abundant in macrocyclic tetraether lipids that contain a single or double long transmembrane hydrocarbon chains connecting the two glycerol backbones at both ends. In this study, a novel amacrocyclic bisphosphatidylcholine lipid bearing a single membrane-spanning octacosamethylene chain, 1,1'-O-octacosamethylene-2,2'-di-O-tetradecyl-bis-(sn-glycero)-3,3'-diphosphocholine (AC-(di-O-C14PC)2), was synthesized to elucidate effects of the interlayer cross-linkage on membrane properties based on comparison with its corresponding diether phosphatidylcholine, 1,2-di-O-tetradecyl-sn-glycero-3-phosphocholine (DTPC), that forms bilayer membrane. Several physicochemical techniques demonstrated that while AC-(di-O-C14PC)2 monolayer, which adopts a particularly high-ordered structure in the gel phase, shows remarkably high thermotropic transition temperature compared to DTPC bilayer, the fluidity of both phospholipids above the transition temperature is comparable. Nonetheless, the fluorescent dye leakage from inside the AC-(di-O-C14PC)2 vesicles in the fluid phase is highly suppressed. The origin of the membrane properties characteristic of AC-(di-O-C14PC)2 monolayer is discussed in terms of the single long transmembrane hydrophobic linkage and the diffusional motion of the lipid molecules.
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Hughes JR, Miller AS, Wallace CE, Vemuri GN, Iovine PM. Biomedically Relevant Applications of Bolaamphiphiles and Bolaamphiphile-Containing Materials. Front Chem 2021; 8:604151. [PMID: 33553103 PMCID: PMC7855593 DOI: 10.3389/fchem.2020.604151] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 12/15/2020] [Indexed: 12/28/2022] Open
Abstract
Bolaamphiphiles (BAs) are structurally segmented molecules with rich assembly characteristics and diverse physical properties. Interest in BAs as standalone active agents or as constituents of more complex therapeutic formulations has increased substantially in recent years. The preorganized amphiphilicity of BAs allows for a range of biological activities including applications that rely on multivalency. This review summarizes BA-related research in biomedically relevant areas. In particular, we review BA-related literature in four areas: gene delivery, antimicrobial materials, hydrogels, and prodrugs. We also discuss several distinguishing characteristics of BAs that impact their utility as biomedically relevant compounds.
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Affiliation(s)
| | | | | | | | - Peter M. Iovine
- Department of Chemistry and Biochemistry, University of San Diego, San Diego, CA, United States
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7
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Ayesa U, Chong PLG. Polar Lipid Fraction E from Sulfolobus acidocaldarius and Dipalmitoylphosphatidylcholine Can Form Stable yet Thermo-Sensitive Tetraether/Diester Hybrid Archaeosomes with Controlled Release Capability. Int J Mol Sci 2020; 21:ijms21218388. [PMID: 33182284 PMCID: PMC7664881 DOI: 10.3390/ijms21218388] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/31/2020] [Accepted: 11/04/2020] [Indexed: 12/29/2022] Open
Abstract
Archaeosomes have drawn increasing attention in recent years as novel nano-carriers for therapeutics. The main obstacle of using archaeosomes for therapeutics delivery has been the lack of an efficient method to trigger the release of entrapped content from the otherwise extremely stable structure. Our present study tackles this long-standing problem. We made hybrid archaeosomes composed of tetraether lipids, called the polar lipid fraction E (PLFE) isolated from the thermoacidophilic archaeon Sulfolobus acidocaldarius, and the synthetic diester lipid dipalmitoylphosphatidylcholine (DPPC). Differential polarized phase-modulation and steady-state fluorometry, confocal fluorescence microscopy, zeta potential (ZP) measurements, and biochemical assays were employed to characterize the physical properties and drug behaviors in PLFE/DPPC hybrid archaeosomes in the presence and absence of live cells. We found that PLFE lipids have an ordering effect on fluid DPPC liposomal membranes, which can slow down the release of entrapped drugs, while PLFE provides high negative charges on the outer surface of liposomes, which can increase vesicle stability against coalescence among liposomes or with cells. Furthermore, we found that the zeta potential in hybrid archaeosomes with 30 mol% PLFE and 70 mol% DPPC (designated as PLFE/DPPC(3:7) archaeosomes) undergoes an abrupt increase from −48 mV at 37 °C to −16 mV at 44 °C (termed the ZP transition), which we hypothesize results from DPPC domain melting and PLFE lipid ‘flip-flop’. The anticancer drug doxorubicin (DXO) can be readily incorporated into PLFE/DPPC(3:7) archaeosomes. The rate constant of DXO release from PLFE/DPPC(3:7) archaeosomes into Tris buffer exhibited a sharp increase (~2.5 times), when the temperature was raised from 37 to 42 °C, which is believed to result from the liposomal structural changes associated with the ZP transition. This thermo-induced sharp increase in drug release was not affected by serum proteins as a similar temperature dependence of drug release kinetics was observed in human blood serum. A 15-min pre-incubation of PLFE/DPPC(3:7) archaeosomal DXO with MCF-7 breast cancer cells at 42 °C caused a significant increase in the amount of DXO entering into the nuclei and a considerable increase in the cell’s cytotoxicity under the 37 °C growth temperature. Taken together, our data suggests that PLFE/DPPC(3:7) archaeosomes are stable yet potentially useful thermo-sensitive liposomes wherein the temperature range (from 37 to 42–44 °C) clinically used for mild hyperthermia treatment of tumors can be used to trigger drug release for medical interventions.
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8
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Straub CT, Counts JA, Nguyen DMN, Wu CH, Zeldes BM, Crosby JR, Conway JM, Otten JK, Lipscomb GL, Schut GJ, Adams MWW, Kelly RM. Biotechnology of extremely thermophilic archaea. FEMS Microbiol Rev 2018; 42:543-578. [PMID: 29945179 DOI: 10.1093/femsre/fuy012] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 06/23/2018] [Indexed: 12/26/2022] Open
Abstract
Although the extremely thermophilic archaea (Topt ≥ 70°C) may be the most primitive extant forms of life, they have been studied to a limited extent relative to mesophilic microorganisms. Many of these organisms have unique biochemical and physiological characteristics with important biotechnological implications. These include methanogens that generate methane, fermentative anaerobes that produce hydrogen gas with high efficiency, and acidophiles that can mobilize base, precious and strategic metals from mineral ores. Extremely thermophilic archaea have also been a valuable source of thermoactive, thermostable biocatalysts, but their use as cellular systems has been limited because of the general lack of facile genetics tools. This situation has changed recently, however, thereby providing an important avenue for understanding their metabolic and physiological details and also opening up opportunities for metabolic engineering efforts. Along these lines, extremely thermophilic archaea have recently been engineered to produce a variety of alcohols and industrial chemicals, in some cases incorporating CO2 into the final product. There are barriers and challenges to these organisms reaching their full potential as industrial microorganisms but, if these can be overcome, a new dimension for biotechnology will be forthcoming that strategically exploits biology at high temperatures.
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Affiliation(s)
- Christopher T Straub
- Department of Chemical and Biomolecular Engineering North Carolina State University, Raleigh, NC 27695-7905, USA
| | - James A Counts
- Department of Chemical and Biomolecular Engineering North Carolina State University, Raleigh, NC 27695-7905, USA
| | - Diep M N Nguyen
- Department of Biochemistry and Molecular Biology University of Georgia, Athens, GA 30602, USA
| | - Chang-Hao Wu
- Department of Biochemistry and Molecular Biology University of Georgia, Athens, GA 30602, USA
| | - Benjamin M Zeldes
- Department of Chemical and Biomolecular Engineering North Carolina State University, Raleigh, NC 27695-7905, USA
| | - James R Crosby
- Department of Chemical and Biomolecular Engineering North Carolina State University, Raleigh, NC 27695-7905, USA
| | - Jonathan M Conway
- Department of Chemical and Biomolecular Engineering North Carolina State University, Raleigh, NC 27695-7905, USA
| | - Jonathan K Otten
- Department of Chemical and Biomolecular Engineering North Carolina State University, Raleigh, NC 27695-7905, USA
| | - Gina L Lipscomb
- Department of Biochemistry and Molecular Biology University of Georgia, Athens, GA 30602, USA
| | - Gerrit J Schut
- Department of Biochemistry and Molecular Biology University of Georgia, Athens, GA 30602, USA
| | - Michael W W Adams
- Department of Biochemistry and Molecular Biology University of Georgia, Athens, GA 30602, USA
| | - Robert M Kelly
- Department of Chemical and Biomolecular Engineering North Carolina State University, Raleigh, NC 27695-7905, USA
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9
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Mahmoud G, Jedelská J, Omar SM, Strehlow B, Schneider M, Bakowsky U. Stabilized tetraether lipids based particles guided prophyrins photodynamic therapy. Drug Deliv 2018; 25:1526-1536. [PMID: 29996694 PMCID: PMC6058496 DOI: 10.1080/10717544.2018.1482970] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 05/28/2018] [Accepted: 05/28/2018] [Indexed: 11/11/2022] Open
Abstract
Photodynamic therapy (PDT) that involves ergonomically delivered light in the presence of archetypical photosensitizer such as Protoporphyrin IX (PpIX) is a time-honored missile strategy in cancer therapeutics. Yet, the premature release of PpIX is one of the most abundant dilemma encounters the therapeutic outcomes of PDT due to associated toxicity and redistribution to serum proteins. In this study, ultrastable tetraether lipids (TELs) based liposomes were developed. PpIX molecules were identified to reside physically in the monolayer; thereby the inherent π-π stacking that leads to aggregation of PpIX in aqueous milieu was dramatically improved. TEL29.9 mol% and TEL62mol% based liposomes revealed PpIX sustained release diffusion pattern from spherical particles as confirmed by converged fitting to Baker & Lonsdale model. Stability in presence of human serum albumins, a key element for PDT accomplishment was emphasized. The epitome candidates were selected for vascular photodynamic (vPDT) in in-Ovo chick chorioallantoic membrane. Profoundly, TEL62mol% based liposomes proved to be the most effective liposomes that demonstrated localized effect within the irradiated area without eliciting quiescent vasculatures damages. Cellular photodynamic therapy (cPDT) revealed that various radiant exposure doses of 134, 202, 403 or 672 mJ.cm-2 could deliberately modulate the photo-responses of PpIX in TEL-liposomes.
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Affiliation(s)
- Gihan Mahmoud
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Marburg, Germany
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Jarmila Jedelská
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Marburg, Germany
| | - Samia Mohamed Omar
- Department of Pharmaceutics, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Boris Strehlow
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Marburg, Germany
| | - Marc Schneider
- Department of Pharmacy, Biopharmaceutics and Pharmaceutical Technology, Saarland University, Saarbrücken, Germany
| | - Udo Bakowsky
- Department of Pharmaceutics and Biopharmaceutics, University of Marburg, Marburg, Germany
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10
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Drescher S, Otto C, Müller S, Garamus VM, Garvey CJ, Grünert S, Lischka A, Meister A, Blume A, Dobner B. Impact of Headgroup Asymmetry and Protonation State on the Aggregation Behavior of a New Type of Glycerol Diether Bolalipid. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:4360-4373. [PMID: 29557659 DOI: 10.1021/acs.langmuir.8b00527] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In the present work, we describe the synthesis and the temperature-dependent aggregation behavior of a new class of asymmetrical glycerol diether bolalipids. These bolalipids are composed of a membrane-spanning alkyl chain with 32 carbon atoms (C32) in the sn-3 position, a methyl-branched C16 alkyl chain in the sn-2 position, and a zwitterionic phosphocholine headgroup in the sn-1 position of a glycerol moiety. The long C32 alkyl chain is terminated either by a second phosphocholine (PC-Gly(2C16Me)C32-PC) or by a phosphodimethylethanolamine headgroup (PC-Gly(2C16Me)C32-Me2PE). The temperature- and pH-dependent aggregation behavior of both lipids was studied using differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy, small-angle X-ray scattering (SAXS), and small-angle neutron scattering (SANS) experiments. The morphology of the formed aggregates in an aqueous suspension was visualized by transmission electron microscopy (TEM). We show that PC-Gly(2C16Me)C32-PC and PC-Gly(2C16Me)C32-Me2PE at pH 5 self-assemble into large lamellar aggregates and large lipid vesicles. Within these structures, the bolalipid molecules are probably assembled in a monolayer with fully interdigitated chains. The lipid molecules seem to be tilted with respect to the layer normal to ensure a dense packing of the alkyl chains. A temperature increase leads to a transition from a lamellar gel phase to the liquid-crystalline phase at about 28-30 °C for both bolalipids. The lamellar aggregates of PC-Gly(2C16Me)C32-Me2PE started to transform into nanofibers when the pH value of the suspension was increased to above 11. At pH 12, these nanofibers were the dominant aggregates.
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Affiliation(s)
| | | | | | - Vasil M Garamus
- Helmholtz-Zentrum Geesthacht: Centre for Materials and Coastal Research (HZG) , Max-Planck-Strasse 1 , 21502 Geesthacht , Germany
| | - Christopher J Garvey
- Australian Nuclear Science and Technology Organisation (ANSTO) , Kirrawee DC , NSW Australia
| | | | | | - Annette Meister
- Institute of Biochemistry and Biotechnology , MLU Halle-Wittenberg , Kurt-Mothes-Strasse 3 , 06120 Halle (Saale) , Germany
| | - Alfred Blume
- Institute of Chemistry , MLU Halle-Wittenberg , von-Danckelmann-Platz 4 , 06120 Halle (Saale) , Germany
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11
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Markowski T, Müller S, Dobner B, Meister A, Blume A, Drescher S. An Asymmetrical Glycerol Diether Bolalipid with Protonable Phosphodimethylethanolamine Headgroup: The Impact of pH on Aggregation Behavior and Miscibility with DPPC. Polymers (Basel) 2017; 9:E573. [PMID: 30965876 PMCID: PMC6418739 DOI: 10.3390/polym9110573] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 10/25/2017] [Accepted: 10/31/2017] [Indexed: 01/07/2023] Open
Abstract
Investigations regarding the self-assembly of (bola)phospholipids in aqueous media are crucial to understand the complex relationship between chemical structure of lipids and the shape and size of their aggregates in water. Here, we introduce a new asymmetrical glycerol diether bolaphospholipid, the compound Me₂PE-Gly(2C16)C32-OH. This bolalipid contains a long (C32) ω-hydroxy alkyl chain bond to glycerol in the sn-3 position, a C16 alkyl chain at the sn-2 position, and a protonable phosphodimethylethanolamine (Me₂PE) headgroup at the sn-1 position of the glycerol. The aggregation behavior of this bolalipid was studied as a function of temperature and pH using transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and Fourier transform infrared (FTIR) spectroscopy. We show that this bolalipid aggregates into condensed lamellar sheets in acidic milieu and in large sheet-like aggregates at neutral pH-value. By contrast, at a pH-value of 10, where the Me₂PE headgroup is only partially protonated, small lipid disks with diameter 50⁻100 nm were additionally found. Moreover, the miscibility of this asymmetrical bolalipid with the bilayer-forming phosphatidylcholine DPPC was investigated by means of DSC and TEM. The incorporation of bolalipids into phospholipid membranes could result in stabilized liposomes applicable for drug delivery purposes. We show that mixtures of DPPC and Me₂PE-Gly(2C16)C32-OH form large lamellar aggregates at pH of 5, 7, and 10. However, closed lipid vesicles (liposomes) with an increased thermal stability were not found.
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Affiliation(s)
- Thomas Markowski
- Institute of Pharmacy-Biochemical Pharmacy, Martin Luther University (MLU) Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany.
| | - Sindy Müller
- Institute of Pharmacy-Biophysical Pharmacy, MLU Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany.
| | - Bodo Dobner
- Institute of Pharmacy-Biochemical Pharmacy, Martin Luther University (MLU) Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany.
| | - Annette Meister
- Institute of Chemistry-Biophysical Chemistry, MLU Halle-Wittenberg, von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
- Institute of Biochemistry and Biotechnology, MLU Halle-Wittenberg, Kurt-Mothes-Strasse 3, 06120 Halle (Saale), Germany.
| | - Alfred Blume
- Institute of Chemistry-Biophysical Chemistry, MLU Halle-Wittenberg, von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany.
| | - Simon Drescher
- Institute of Pharmacy-Biophysical Pharmacy, MLU Halle-Wittenberg, Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany.
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12
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Meister A, Blume A. (Cryo)Transmission Electron Microscopy of Phospholipid Model Membranes Interacting with Amphiphilic and Polyphilic Molecules. Polymers (Basel) 2017; 9:E521. [PMID: 30965829 PMCID: PMC6418595 DOI: 10.3390/polym9100521] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 10/12/2017] [Accepted: 10/13/2017] [Indexed: 11/16/2022] Open
Abstract
Lipid membranes can incorporate amphiphilic or polyphilic molecules leading to specific functionalities and to adaptable properties of the lipid bilayer host. The insertion of guest molecules into membranes frequently induces changes in the shape of the lipid matrix that can be visualized by transmission electron microscopy (TEM) techniques. Here, we review the use of stained and vitrified specimens in (cryo)TEM to characterize the morphology of amphiphilic and polyphilic molecules upon insertion into phospholipid model membranes. Special emphasis is placed on the impact of novel synthetic amphiphilic and polyphilic bolalipids and polymers on membrane integrity and shape stability.
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Affiliation(s)
- Annette Meister
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany.
- Institute of Biochemistry and Biotechnology, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany.
| | - Alfred Blume
- Institute of Chemistry, Martin Luther University Halle-Wittenberg, D-06120 Halle (Saale), Germany.
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13
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Drescher S, Garamus VM, Garvey CJ, Meister A, Blume A. Aggregation behaviour of a single-chain, phenylene-modified bolalipid and its miscibility with classical phospholipids. Beilstein J Org Chem 2017; 13:995-1007. [PMID: 28684979 PMCID: PMC5480355 DOI: 10.3762/bjoc.13.99] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 04/28/2017] [Indexed: 01/04/2023] Open
Abstract
In the present work, we describe the synthesis of a single-chain, phenylene-modified bolalipid with two phosphocholine headgroups, PC-C18pPhC18-PC, using a Sonogashira cross-coupling reaction as a key step. The aggregation behaviour was studied as a function of temperature using transmission electron microscopy (TEM), differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR) spectroscopy, and small angle neutron scattering (SANS). We show that our new bolalipid self-assembles into nanofibres, which transform into flexible nanofibres at 27 °C and further to small elongated micelles at 45 °C. Furthermore, the miscibility of the bolalipid with bilayer-forming phosphatidylcholines (DMPC, DPPC, and DSPC) was investigated by means of DSC, TEM, FTIR, and small angle X-ray scattering (SAXS). We could show that the PC-C18pPhC18-PC is partially miscible with saturated phosphatidylcholines; however, closed lipid vesicles with an increased thermal stability were not found. Instead, bilayer fragments and disk-like aggregates are formed.
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Affiliation(s)
- Simon Drescher
- Institute of Pharmacy, Martin Luther University (MLU) Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Vasil M Garamus
- Helmholtz-Zentrum Geesthacht (HZG), Centre for Materials and Costal Research, Max-Planck-Str. 1, 21502 Geesthacht, Germany
| | - Christopher J Garvey
- Australian Nuclear Science and Technology Organisation (ANSTO), Kirrawee DC, NSW, Australia
| | - Annette Meister
- Institute of Chemistry, MLU Halle-Wittenberg, von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
- Institute of Biochemistry and Biotechnology, MLU Halle-Wittenberg, Kurt-Mothes-Str. 3, 06120 Halle (Saale), Germany
| | - Alfred Blume
- Institute of Chemistry, MLU Halle-Wittenberg, von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
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14
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Arranz-Martínez P, Casado V, Reglero G, Torres CF. Novel glyceryl ethers phospholipids produced by solid to solid transphosphatidylation in the presence of a food grade phospholipase D. EUR J LIPID SCI TECH 2017. [DOI: 10.1002/ejlt.201600427] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Pablo Arranz-Martínez
- Instituto de Investigación en Ciencias de la Alimentación (CSIC-UAM); Universidad Autónoma de Madrid; Madrid Spain
| | - Víctor Casado
- Instituto de Investigación en Ciencias de la Alimentación (CSIC-UAM); Universidad Autónoma de Madrid; Madrid Spain
- Department of Chemical and Bioprocess Engineering; Pontificia Universidad Católica de Chile; Santiago Chile
| | - Guillermo Reglero
- Instituto de Investigación en Ciencias de la Alimentación (CSIC-UAM); Universidad Autónoma de Madrid; Madrid Spain
- IMDEA-Food Institute, CEI (UAM-CSIC); Madrid Spain
| | - Carlos F. Torres
- Instituto de Investigación en Ciencias de la Alimentación (CSIC-UAM); Universidad Autónoma de Madrid; Madrid Spain
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15
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Koyanagi T, Cao KJ, Leriche G, Onofrei D, Holland GP, Mayer M, Sept D, Yang J. Hybrid Lipids Inspired by Extremophiles and Eukaryotes Afford Serum‐Stable Membranes with Low Leakage. Chemistry 2017; 23:6757-6762. [DOI: 10.1002/chem.201701378] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Takaoki Koyanagi
- Department of Chemistry and Biochemistry University of California San Diego La Jolla California 92093-0358 USA
| | - Kevin J. Cao
- Department of Chemistry and Biochemistry University of California San Diego La Jolla California 92093-0358 USA
| | - Geoffray Leriche
- Department of Chemistry and Biochemistry University of California San Diego La Jolla California 92093-0358 USA
| | - David Onofrei
- Department of Chemistry and Biochemistry San Diego State University San Diego California 92182-1030 USA
| | - Gregory P. Holland
- Department of Chemistry and Biochemistry San Diego State University San Diego California 92182-1030 USA
| | - Michael Mayer
- Adolphe Merkle Institute University of Fribourg Chemin des Verdiers 4 1700 Fribourg Switzerland
| | - David Sept
- Department of Biomedical Engineering University of Michigan Ann Arbor Michigan 48109-2110 USA
| | - Jerry Yang
- Department of Chemistry and Biochemistry University of California San Diego La Jolla California 92093-0358 USA
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16
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Jacobsen AC, Jensen SM, Fricker G, Brandl M, Treusch AH. Archaeal lipids in oral delivery of therapeutic peptides. Eur J Pharm Sci 2017; 108:101-110. [PMID: 28108360 DOI: 10.1016/j.ejps.2016.12.036] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 12/01/2016] [Accepted: 12/30/2016] [Indexed: 02/05/2023]
Abstract
Archaea contain membrane lipids that differ from those found in the other domains of life (Eukarya and Bacteria). These lipids consist of isoprenoid chains attached via ether bonds to the glycerol carbons at the sn-2,3 positions. Two types of ether lipids are known, polar diether lipids and bipolar tetraether lipids. The inherent chemical stability and unique membrane-spanning characteristics of tetraether lipids render them interesting for oral drug delivery purposes. Archaeal lipids form liposomes spontaneously (archaeosomes) and may be incorporated in conventional liposomes (mixed vesicles). Both types of liposomes are promising to protect their drug cargo, such as therapeutic peptides, against the acidic environment of the stomach and proteolytic degradation in the intestine. They appear to withstand lipolytic enzymes and bile salts and may thus deliver orally administered therapeutic peptides to distant sections of the intestine or to the colon, where they may be absorbed, eventually by the help of absorption enhancers. Archaeal lipids and their semisynthetic derivatives may thus serve as biological source for the next generation oral drug delivery systems. The aim of this review is to present a systematic overview over existing literature on archaea carrying diether and tetraether lipids, lipid diversity, means of lipid extraction and purification, preparation and in vitro stability studies of archaeal lipid-based liposomal drug carriers and in vivo proof-of concepts studies.
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Affiliation(s)
- Ann-Christin Jacobsen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense DK-5230, Denmark
| | - Sara M Jensen
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense DK-5230, Denmark; Department of Biology and Nordic Center for Earth Evolution, University of Southern Denmark, Odense DK-5230, Denmark
| | - Gert Fricker
- Department of Pharmaceutical Technology, Institute of Pharmacy and Molecular Biotechnology, University of Heidelberg, Heidelberg D-69120, Germany
| | - Martin Brandl
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense DK-5230, Denmark.
| | - Alexander H Treusch
- Department of Biology and Nordic Center for Earth Evolution, University of Southern Denmark, Odense DK-5230, Denmark
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17
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Leriche G, Cifelli JL, Sibucao KC, Patterson JP, Koyanagi T, Gianneschi NC, Yang J. Characterization of drug encapsulation and retention in archaea-inspired tetraether liposomes. Org Biomol Chem 2017; 15:2157-2162. [DOI: 10.1039/c6ob02832b] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Archaea-inspired lipids exhibit reduced membrane permeability and increased retention of hydrophilic drugs in liposomes.
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Affiliation(s)
- Geoffray Leriche
- Department of Chemistry and Biochemistry
- University of California
- San Diego
- La Jolla
- USA
| | - Jessica L. Cifelli
- Department of Chemistry and Biochemistry
- University of California
- San Diego
- La Jolla
- USA
| | - Kevin C. Sibucao
- Department of Chemistry and Biochemistry
- University of California
- San Diego
- La Jolla
- USA
| | - Joseph P. Patterson
- Department of Chemistry and Biochemistry
- University of California
- San Diego
- La Jolla
- USA
| | - Takaoki Koyanagi
- Department of Chemistry and Biochemistry
- University of California
- San Diego
- La Jolla
- USA
| | - Nathan C. Gianneschi
- Department of Chemistry and Biochemistry
- University of California
- San Diego
- La Jolla
- USA
| | - Jerry Yang
- Department of Chemistry and Biochemistry
- University of California
- San Diego
- La Jolla
- USA
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18
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Barbeau J, Lemiègre L, Quelen A, Malard V, Gao H, Gonçalves C, Berchel M, Jaffrès PA, Pichon C, Midoux P, Benvegnu T. Synthesis of a trimannosylated-equipped archaeal diether lipid for the development of novel glycoliposomes. Carbohydr Res 2016; 435:142-148. [DOI: 10.1016/j.carres.2016.10.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Revised: 10/10/2016] [Accepted: 10/10/2016] [Indexed: 11/16/2022]
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19
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Skibinski CG, Das A, Chen KM, Liao J, Manni A, Kester M, El-Bayoumy K. A novel biologically active acid stable liposomal formulation of docosahexaenoic acid in human breast cancer cell lines. Chem Biol Interact 2016; 252:1-8. [DOI: 10.1016/j.cbi.2016.03.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 03/23/2016] [Accepted: 03/30/2016] [Indexed: 02/07/2023]
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20
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Jiblaoui A, Barbeau J, Vivès T, Cormier P, Glippa V, Cosson B, Benvegnu T. Folate-conjugated stealth archaeosomes for the targeted delivery of novel antitumoral peptides. RSC Adv 2016. [DOI: 10.1039/c6ra15713k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this work, novel archaeosomes based on Egg-PC and a mixture of PEGylated archaeal tetraether lipids were investigated as nanocarriers forin vitrodelivery of an original anticancer peptide.
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Affiliation(s)
- Ahmad Jiblaoui
- Ecole Nationale Supérieure de Chimie de Rennes
- UMR CNRS 6226
- Equipe Chimie Organique et Supramoléculaire
- 35708 Rennes Cedex 7
- France
| | - Julie Barbeau
- Ecole Nationale Supérieure de Chimie de Rennes
- UMR CNRS 6226
- Equipe Chimie Organique et Supramoléculaire
- 35708 Rennes Cedex 7
- France
| | - Thomas Vivès
- Ecole Nationale Supérieure de Chimie de Rennes
- UMR CNRS 6226
- Equipe Chimie Organique et Supramoléculaire
- 35708 Rennes Cedex 7
- France
| | - Patrick Cormier
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR CNRS 8227
- Integrative Biology of Marine Models
- Translation Cell Cycle and Development
| | - Virginie Glippa
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR CNRS 8227
- Integrative Biology of Marine Models
- Translation Cell Cycle and Development
| | - Bertrand Cosson
- Sorbonne Universités
- UPMC Univ Paris 06
- UMR CNRS 8227
- Integrative Biology of Marine Models
- Translation Cell Cycle and Development
| | - Thierry Benvegnu
- Ecole Nationale Supérieure de Chimie de Rennes
- UMR CNRS 6226
- Equipe Chimie Organique et Supramoléculaire
- 35708 Rennes Cedex 7
- France
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21
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Markowski T, Drescher S, Förster G, Lechner BD, Meister A, Blume A, Dobner B. Highly asymmetrical glycerol diether bolalipids: synthesis and temperature-dependent aggregation behavior. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:10683-10692. [PMID: 26366715 DOI: 10.1021/acs.langmuir.5b02951] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In the present work, we describe the synthesis and temperature-dependent aggregation behavior of two examples of a new class of highly asymmetrical glycerol diether bolaphospholipids. The bolalipids contain a long alkyl chain (C32) bound to glycerol in the sn-3 position, carrying a hydroxyl group at the ω position. The C16 alkyl chain in the sn-2 position either possesses a racemic methyl branch at the 10 position of the short alkyl chain (lipid II) or does not (lipid I). The sn-1 position of the glycerol is linked to a zwitterionic phosphocholine moiety. The temperature-dependent aggregation behavior of both bolalipids was studied using differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR) spectroscopy, and X-ray scattering. Aggregate structures were visualized by transmission electron microscopy (TEM). We show that both bolalipids self-assemble into large lamellar sheetlike aggregates. Closed lipid vesicles or other aggregate structures such as tubes or nanofibers, as usually found for diglycerol tetraether lipids, were not observed. Within the lamellae the bolalipid molecules are arranged in an antiparallel (interdigitated) orientation. Lipid I, without an additional methyl moiety in the short alkyl chain, shows a lamellar phase with high crystallinity up to a temperature of 34 °C, which was not observed before for other phospholipids.
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Affiliation(s)
- Thomas Markowski
- Institute of Pharmacy, Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Simon Drescher
- Institute of Pharmacy, Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Günter Förster
- Institute of Chemistry, MLU Halle-Wittenberg , von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Bob-Dan Lechner
- Institute of Chemistry, MLU Halle-Wittenberg , von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Annette Meister
- Center for Structure and Dynamics of Proteins (MZP), MLU Halle-Wittenberg, Biocenter , Weinbergweg 22, 06120 Halle (Saale), Germany
| | - Alfred Blume
- Institute of Chemistry, MLU Halle-Wittenberg , von-Danckelmann-Platz 4, 06120 Halle (Saale), Germany
| | - Bodo Dobner
- Institute of Pharmacy, Martin Luther University (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
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22
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Attar A, Ogan A, Yucel S, Turan K. The potential of archaeosomes as carriers of pDNA into mammalian cells. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2015; 44:710-6. [DOI: 10.3109/21691401.2014.982800] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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23
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Abstract
Synthetic mRNAs can become biopharmaceutics allowing vaccination against cancer, bacterial and virus infections. Clinical trials with direct administration of synthetic mRNAs encoding tumor antigens demonstrated safety and induction of tumor-specific immune responses. Although immune responses are generated by naked mRNAs, their formulations with chemical carriers are expected to provide more specificity and internalization in dendritic cells (DCs) for better immune responses and dose reduction. This review reports lipid-based formulations (LBFs) that have proved preclinical efficacy. The selective delivery of mRNA LBFs to favor intracellular accumulation in DCs and reduction of the effective doses is discussed, notably to decorate LBFs with carbohydrates or glycomimetics allowing endocytosis in DCs. We also report how smart intracellular delivery is achieved using pH-sensitive lipids or polymers for an efficient mRNA escape from endosomes and limitations regarding cytosolic mRNA location for translation.
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Affiliation(s)
- Patrick Midoux
- Centre de Biophysique Moléculaire, CNRS UPR4301, Inserm and Université d'Orléans, Orléans, 45071, cedex 02, France
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24
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Drescher S, Lechner BD, Garamus VM, Almásy L, Meister A, Blume A. The headgroup (a)symmetry strongly determines the aggregation behavior of single-chain phenylene-modified bolalipids and their miscibility with classical phospholipids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:9273-9284. [PMID: 25025213 DOI: 10.1021/la501160s] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In the present work, we describe the synthesis of two single-chain phenylene-modified bolalipids, namely PC-C17pPhC17-PC and PC-C17pPhC17-OH, with either symmetrical (phosphocholine) or asymmetrical (phosphocholine and hydroxyl) headgroups using a Sonogashira cross-coupling reaction as key step. The temperature-dependent aggregation behavior of both bolalipids in aqueous suspension was studied using transmission electron microscopy (TEM), differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR) spectroscopy, small angle neutron scattering (SANS), and X-ray scattering. We show that different headgroup symmetries lead to a change in the aggregation behavior: Whereas PC-C17pPhC17-PC forms nanofibers with a diameter of 5.7 nm that transform into small ellipsoidal micelles at 23 °C, the PC-C17pPhC17-OH self-assembles into lamellae with bolalipid molecules in an antiparallel orientation up to high temperatures. Furthermore, the mixing behavior of both bolalipids with bilayer-forming phospholipids (DPPC and DSPC) was studied by means of DSC and TEM. The aim was to stabilize bilayer membranes formed of phospholipids in order to improve these mixed lipid vesicles for drug delivery purposes. We show that the symmetrical PC-C17pPhC17-PC is miscible with DPPC and DSPC; however, closed lipid vesicles are not observed, and elongated micelles and bilayer fragments are found instead. In contrast, the asymmetrical PC-C17pPhC17-OH shows no miscibility with phospholipids at all.
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Affiliation(s)
- Simon Drescher
- Institute of Pharmacy, Martin-Luther-Universitaet (MLU) Halle-Wittenberg , Wolfgang-Langenbeck-Strasse 4, 06120 Halle (Saale), Germany
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25
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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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26
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27
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Markowski T, Drescher S, Meister A, Blume A, Dobner B. Structure–property relationships in a series of diglycerol tetraether model lipids and their lyotropic assemblies: the effect of branching topology and chirality. Org Biomol Chem 2014; 12:3649-62. [DOI: 10.1039/c4ob00048j] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Drescher S, Dobner B. Synthesis of Novel Asymmetrical Single-Chain Phosphoglycol-Based Bolaamphiphiles. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2013.825806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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29
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Ngo THV, Damas C, Naejus R, Coudert R. A comparative study of micellization with fluorinated and hydrogenated diquaternary ammonium bolaamphiphiles. J Colloid Interface Sci 2013; 400:59-66. [DOI: 10.1016/j.jcis.2013.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 03/06/2013] [Accepted: 03/07/2013] [Indexed: 11/25/2022]
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30
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Aleandri S, Casnati A, Fantuzzi L, Mancini G, Rispoli G, Sansone F. Incorporation of a calixarene-based glucose functionalised bolaamphiphile into lipid bilayers for multivalent lectin recognition. Org Biomol Chem 2013; 11:4811-7. [DOI: 10.1039/c3ob40732b] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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31
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On physical properties of tetraether lipid membranes: effects of cyclopentane rings. ARCHAEA-AN INTERNATIONAL MICROBIOLOGICAL JOURNAL 2012; 2012:138439. [PMID: 23028246 PMCID: PMC3458407 DOI: 10.1155/2012/138439] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2012] [Accepted: 08/08/2012] [Indexed: 01/25/2023]
Abstract
This paper reviews the recent findings related to the physical properties of tetraether lipid membranes, with special attention to the effects of the number, position, and configuration of cyclopentane rings on membrane properties. We discuss the findings obtained from liposomes and monolayers, composed of naturally occurring archaeal tetraether lipids and synthetic tetraethers as well as the results from computer simulations. It appears that the number, position, and stereochemistry of cyclopentane rings in the dibiphytanyl chains of tetraether lipids have significant influence on packing tightness, lipid conformation, membrane thickness and organization, and headgroup hydration/orientation.
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32
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Synthesis of symmetrical, single-chain, phenylene/biphenylene-modified bolaamphiphiles. MONATSHEFTE FUR CHEMIE 2012. [DOI: 10.1007/s00706-012-0833-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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33
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Kumar D, Sharma D, Singh G, Singh M, Rathore MS. Lipoidal soft hybrid biocarriers of supramolecular construction for drug delivery. ISRN PHARMACEUTICS 2012. [PMID: 22888455 DOI: 10.5402/2012/474830]] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Lipid-based innovations have achieved new heights during the last few years as an essential component of drug development. The current challenge of drug delivery is liberation of drug agents at the right time in a safe and reproducible manner to a specific target site. A number of novel drug delivery systems has emerged encompassing various routes of administration, to achieve controlled and targeted drug delivery. Microparticulate lipoidal vesicular system represents a unique technology platform suitable for the oral and systemic administration of a wide variety of molecules with important therapeutic biological activities, including drugs, genes, and vaccine antigens. The success of liposomes as drug carriers has been reflected in a number of liposome-based formulations, which are commercially available or are currently undergoing clinical trials. Also, novel lipid carrier-mediated vesicular systems are originated. This paper has focused on the lipid-based supramolecular vesicular carriers that are used in various drug delivery and drug targeting systems.
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Affiliation(s)
- Dinesh Kumar
- Department of Pharmaceutics, CT Institute of Pharmaceutical Sciences, Jalandhar 144020, India
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34
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Kumar D, Sharma D, Singh G, Singh M, Rathore MS. Lipoidal soft hybrid biocarriers of supramolecular construction for drug delivery. ISRN PHARMACEUTICS 2012; 2012:474830. [PMID: 22888455 PMCID: PMC3409530 DOI: 10.5402/2012/474830] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Accepted: 05/03/2012] [Indexed: 12/04/2022]
Abstract
Lipid-based innovations have achieved new heights during the last few years as an essential component of drug development. The current challenge of drug delivery is liberation of drug agents at the right time in a safe and reproducible manner to a specific target site. A number of novel drug delivery systems has emerged encompassing various routes of administration, to achieve controlled and targeted drug delivery. Microparticulate lipoidal vesicular system represents a unique technology platform suitable for the oral and systemic administration of a wide variety of molecules with important therapeutic biological activities, including drugs, genes, and vaccine antigens. The success of liposomes as drug carriers has been reflected in a number of liposome-based formulations, which are commercially available or are currently undergoing clinical trials. Also, novel lipid carrier-mediated vesicular systems are originated. This paper has focused on the lipid-based supramolecular vesicular carriers that are used in various drug delivery and drug targeting systems.
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Affiliation(s)
- Dinesh Kumar
- Department of Pharmaceutics, CT Institute of Pharmaceutical Sciences, Jalandhar 144020, India
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35
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Jacquemet A, Mériadec C, Lemiègre L, Artzner F, Benvegnu T. Stereochemical effect revealed in self-assemblies based on archaeal lipid analogues bearing a central five-membered carbocycle: a SAXS study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:7591-7597. [PMID: 22546181 DOI: 10.1021/la2045948] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The relative stereochemistry (cis or trans) of a 1,3-disubstituted cyclopentane unit in the middle of tetraether archaeal bipolar lipid analogues was found to have a dramatic influence on their supramolecular self-assembly properties. SAXS studies of two synthetic diastereomeric archaeal lipids bearing two lactosyl polar head groups at opposite ends revealed different lyotropic behaviors. The cis isomer led to L(c)-L(α)-Q(II) transitions whereas the trans isomer retained an L(α) phase from 20 to 100 °C. These main differences originate from the conformational equilibrium (pseudorotation) of 1,3-disubstituted cyclopentanes. Indeed, this pseudorotation exhibits quite similar orientations of the two substituents in a trans isomer whereas several orientations of the two alkyl chains are expected in a cis-1,3-dialkyl cyclopentane, thus authorizing more conformational flexibility in the lipid packing.
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Affiliation(s)
- Alicia Jacquemet
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS, UMR 6226, Avenue du Général Leclerc, CS 50837, 35708 Rennes Cedex 7, France
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Drescher S, Becker S, Dobner B, Blume A. Bis-Sonogashira cross-coupling: an expeditious approach towards long-chain, phenylene-modified 1,ω-diols. RSC Adv 2012. [DOI: 10.1039/c2ra20411h] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Portier Y, Lainé C, Lemiègre L, Montier T, Cammas-Marion S, Lehn P, Benvegnu T. Folate PEGylated archaeal lipids: cell targeting and drug delivery. J Control Release 2011; 148:e115-6. [PMID: 21529586 DOI: 10.1016/j.jconrel.2010.07.087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Yvan Portier
- Ecole Nationale Supérieure de Chimie de Rennes, Equipe COS, Chimie Organique et Supramoléculaire, UMR 6226, Campus de Beaulieu, 263 Avenue du Général Leclerc, CS 50837, F-35708 Rennes Cedex 7, France.
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Markowski T, Drescher S, Meister A, Hause G, Blume A, Dobner B. Synthesis of Optically Pure Diglycerol Tetraether Model Lipids with Non-Natural Branching Pattern. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100758] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Li Z, Zhang L, Sun W, Ding Q, Hou Y, Xu Y. Archaeosomes with encapsulated antigens for oral vaccine delivery. Vaccine 2011; 29:5260-6. [DOI: 10.1016/j.vaccine.2011.05.015] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2009] [Revised: 03/19/2011] [Accepted: 05/09/2011] [Indexed: 10/18/2022]
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Chong PLG, Sulc M, Winter R. Compressibilities and volume fluctuations of archaeal tetraether liposomes. Biophys J 2010; 99:3319-26. [PMID: 21081080 PMCID: PMC2980700 DOI: 10.1016/j.bpj.2010.09.061] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2010] [Revised: 09/29/2010] [Accepted: 09/30/2010] [Indexed: 11/16/2022] Open
Abstract
Bipolar tetraether lipids (BTLs) are abundant in crenarchaeota, which thrive in both thermophilic and nonthermophilic environments, with wide-ranging growth temperatures (4-108°C). BTL liposomes can serve as membrane models to explore the role of BTLs in the thermal stability of the plasma membrane of crenarchaeota. In this study, we focus on the liposomes made of the polar lipid fraction E (PLFE). PLFE is one of the main BTLs isolated from the thermoacidophilic crenarchaeon Sulfolobus acidocaldarius. Using molecular acoustics (ultrasound velocimetry and densimetry), pressure perturbation calorimetry, and differential scanning calorimetry, we have determined partial specific adiabatic and isothermal compressibility, their respective compressibility coefficients, partial specific volume, and relative volume fluctuations of PLFE large unilamellar vesicles (LUVs) over a wide range of temperatures (20-85°C). The results are compared with those obtained from liposomes made of dipalmitoyl-L-α-phosphatidylcholine (DPPC), a conventional monopolar diester lipid. We found that, in the entire temperature range examined, compressibilities of PLFE LUVs are low, comparable to those found in gel state of DPPC. Relative volume fluctuations of PLFE LUVs at any given temperature examined are 1.6-2.2 times more damped than those found in DPPC LUVs. Both compressibilities and relative volume fluctuations in PLFE LUVs are much less temperature-sensitive than those in DPPC liposomes. The isothermal compressibility coefficient (β(T)(lipid)) of PLFE LUVs changes from 3.59 × 10(-10) Pa(-1) at 25°C to 4.08 × 10(-10) Pa(-1) at 78°C. Volume fluctuations of PLFE LUVs change only 0.25% from 30°C to 80°C. The highly damped volume fluctuations and their low temperature sensitivity, echo that PLFE liposomes are rigid and tightly packed. To our knowledge, the data provide a deeper understanding of lipid packing in PLFE liposomes than has been previously reported, as well as a molecular explanation for the low solute permeation and limited membrane lateral motion. The obtained results may help to establish new strategies for rational design of stable BTL-based liposomes for drug/vaccine delivery.
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Affiliation(s)
- Parkson Lee-Gau Chong
- Department of Biochemistry, Temple University School of Medicine, Philadelphia, Pennsylvania
| | - Michael Sulc
- Faculty of Chemistry, Physical Chemistry I, Biophysical Chemistry, Technical University of Dortmund, Dortmund, Germany
| | - Roland Winter
- Faculty of Chemistry, Physical Chemistry I, Biophysical Chemistry, Technical University of Dortmund, Dortmund, Germany
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Chong PLG. Archaebacterial bipolar tetraether lipids: Physico-chemical and membrane properties. Chem Phys Lipids 2010; 163:253-65. [PMID: 20060818 DOI: 10.1016/j.chemphyslip.2009.12.006] [Citation(s) in RCA: 105] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2009] [Revised: 12/18/2009] [Accepted: 12/30/2009] [Indexed: 11/18/2022]
Abstract
Bipolar tetraether lipids (BTL) are abundant in archaea and can be chemically synthesized. The structures of BTL are distinctly different from the lipids found in bacteria and eukaryotes. In aqueous solution, BTL can form extraordinarily stable liposomes with different sizes, lamellarities and membrane packing densities. BTL liposomes can serve as membrane models for understanding the structure-function relationship of the plasma membrane in thermoacidophiles and can be used for technological applications. This article reviews the separation, characterization and structures of BTL as well as the physical properties and technological applications of BTL liposomes. One of the structural features of BTL is the presence of cyclopentane rings in the lipid hydrocarbon core. Archaea use the cyclopentane ring as an adaptation strategy to cope with high growth temperature. Special attention of this article is focused on how the number of cyclopentane rings varies with environmental factors and affects membrane properties.
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Affiliation(s)
- Parkson Lee-Gau Chong
- Department of Biochemistry, Temple University School of Medicine, Philadelphia, PA 19140, United States.
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Berchel M, Mériadec C, Lemiègre L, Artzner F, Jeftić J, Benvegnu T. Supramolecular Structures Based on New Bolaamphiphile Molecules Investigated by Small Angle and Wide Angle X-ray Scattering and Polarized Optical Microscopy. J Phys Chem B 2009; 113:15433-44. [DOI: 10.1021/jp905747r] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mathieu Berchel
- UMR CNRS 6226, Sciences Chimiques de Rennes, Equipe Chimie Organique et Supramoléculaire, Ecole Nationale Supérieure de Chimie de Rennes, Avenue du Général Leclerc, CS 50837, 35708 Rennes cedex 7, France, Institut de Physique de Rennes, UMR CNRS 6251, Université Rennes 1, 263, Avenue du Général Leclerc, 35042 Rennes cedex, France, and Université Européenne de Bretagne, 5 boulevard Laënnec, 35000 Rennes, France
| | - Cristelle Mériadec
- UMR CNRS 6226, Sciences Chimiques de Rennes, Equipe Chimie Organique et Supramoléculaire, Ecole Nationale Supérieure de Chimie de Rennes, Avenue du Général Leclerc, CS 50837, 35708 Rennes cedex 7, France, Institut de Physique de Rennes, UMR CNRS 6251, Université Rennes 1, 263, Avenue du Général Leclerc, 35042 Rennes cedex, France, and Université Européenne de Bretagne, 5 boulevard Laënnec, 35000 Rennes, France
| | - Loïc Lemiègre
- UMR CNRS 6226, Sciences Chimiques de Rennes, Equipe Chimie Organique et Supramoléculaire, Ecole Nationale Supérieure de Chimie de Rennes, Avenue du Général Leclerc, CS 50837, 35708 Rennes cedex 7, France, Institut de Physique de Rennes, UMR CNRS 6251, Université Rennes 1, 263, Avenue du Général Leclerc, 35042 Rennes cedex, France, and Université Européenne de Bretagne, 5 boulevard Laënnec, 35000 Rennes, France
| | - Franck Artzner
- UMR CNRS 6226, Sciences Chimiques de Rennes, Equipe Chimie Organique et Supramoléculaire, Ecole Nationale Supérieure de Chimie de Rennes, Avenue du Général Leclerc, CS 50837, 35708 Rennes cedex 7, France, Institut de Physique de Rennes, UMR CNRS 6251, Université Rennes 1, 263, Avenue du Général Leclerc, 35042 Rennes cedex, France, and Université Européenne de Bretagne, 5 boulevard Laënnec, 35000 Rennes, France
| | - Jelena Jeftić
- UMR CNRS 6226, Sciences Chimiques de Rennes, Equipe Chimie Organique et Supramoléculaire, Ecole Nationale Supérieure de Chimie de Rennes, Avenue du Général Leclerc, CS 50837, 35708 Rennes cedex 7, France, Institut de Physique de Rennes, UMR CNRS 6251, Université Rennes 1, 263, Avenue du Général Leclerc, 35042 Rennes cedex, France, and Université Européenne de Bretagne, 5 boulevard Laënnec, 35000 Rennes, France
| | - Thierry Benvegnu
- UMR CNRS 6226, Sciences Chimiques de Rennes, Equipe Chimie Organique et Supramoléculaire, Ecole Nationale Supérieure de Chimie de Rennes, Avenue du Général Leclerc, CS 50837, 35708 Rennes cedex 7, France, Institut de Physique de Rennes, UMR CNRS 6251, Université Rennes 1, 263, Avenue du Général Leclerc, 35042 Rennes cedex, France, and Université Européenne de Bretagne, 5 boulevard Laënnec, 35000 Rennes, France
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Abstract
Archaea have developed specific tools permitting life under harsh conditions and archaeal lipids are one of these tools. This microreview describes the particular features of tetraether-type archaeal lipids and their potential applications in biotechnology. Natural and synthetic tetraether lipid structures as well as their applications in drug/gene delivery, vaccines and proteoliposomes or as lipid films are reviewed.
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Lainé C, Mornet E, Lemiègre L, Montier T, Cammas-Marion S, Neveu C, Carmoy N, Lehn P, Benvegnu T. Folate-Equipped Pegylated Archaeal Lipid Derivatives: Synthesis and Transfection Properties. Chemistry 2008; 14:8330-40. [DOI: 10.1002/chem.200800950] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Benvegnu T, Lemiègre L, Cammas‐Marion S. Archaeal Lipids: Innovative Materials for Biotechnological Applications. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800452] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Thierry Benvegnu
- UMR CNRS 6226 “Sciences Chimiques de Rennes”, Equipe “Chimie Organique et Supramoléculaire”, Ecole NationaleSupérieure de Chimie de Rennes, Université Européenne de Bretagne, Av. Général Leclerc, 35700 Rennes, France, Fax: +33‐2‐23‐23‐80‐46
| | - Loïc Lemiègre
- UMR CNRS 6226 “Sciences Chimiques de Rennes”, Equipe “Chimie Organique et Supramoléculaire”, Ecole NationaleSupérieure de Chimie de Rennes, Université Européenne de Bretagne, Av. Général Leclerc, 35700 Rennes, France, Fax: +33‐2‐23‐23‐80‐46
| | - Sandrine Cammas‐Marion
- UMR CNRS 6226 “Sciences Chimiques de Rennes”, Equipe “Chimie Organique et Supramoléculaire”, Ecole NationaleSupérieure de Chimie de Rennes, Université Européenne de Bretagne, Av. Général Leclerc, 35700 Rennes, France, Fax: +33‐2‐23‐23‐80‐46
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Meister A, Drescher S, Garamus VM, Karlsson G, Graf G, Dobner B, Blume A. Temperature-dependent self-assembly and mixing behavior of symmetrical single-chain bolaamphiphiles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:6238-46. [PMID: 18484760 DOI: 10.1021/la800166h] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The temperature-dependent self-assembly and the mixing behavior of symmetrical single-chain bolaamphiphiles with different polymethylene chain lengths and different headgroup structures were investigated in water by differential scanning calorimetry (DSC), cryo transmission electron microscopy (cryo-TEM), and small angle neutron scattering (SANS). The even-numbered polymethylene-1,omega-bis(phosphocholines) (PC-C n-PC) are known to form nanofibers composed of stretched molecules with an all- trans alkyl chain conformation (Drescher, S.; Meister, A.; Blume, A.; Karlsson, G.; Almgren, M.; Dobner, B. Chem.Eur. J. 2007, 13, 5300-5307). The odd-numbered analogues were synthesized to study a possible even-odd effect of these bolaamphiphiles during their aggregation in water. In addition to these bolaamphiphiles with phosphocholine headgroups, a new series of polymethylene-1,omega-bis(phosphodimethylethanolamines) (Me2PE-Cn-Me2PE) with smaller headgroup sizes was synthesized. These bolaamphiphiles show an additional fiber-fiber transition when the alkyl chain length exceeds 26 carbon atoms. The mixing behavior of both types of bolaamphiphiles indicates that differences in the alkyl chain length up to six carbon atoms are tolerated within the fiber structure. The mixing of two Me2PE-Cn-Me2PE or PC-Cn-PC type bolaamphiphiles with different alkyl chain lengths offers the possibility to adjust the temperature, where the cross-linking of the fibers is disrupted and where the fibers break apart. As a consequence, temperature switchable hydrogels are obtained that can be fine-tuned for drug delivery applications. The comparison with dotriacontane-1,32-diyl-bis[2-(methylammonio)-ethylphosphate] (MePE-C32-MePE), a new bolaamphiphile with even smaller phosphomonomethylammonio headgroups, illustrates the importance of the headgroup size for the aggregation behavior. This bolaamphiphile self-assembles exclusively into lamellar structures, and this aggregate type persists in mixtures with the fiber forming Me2PE-C32-Me2PE.
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Affiliation(s)
- Annette Meister
- Institute of Chemistry, Physical Chemistry, MLU Halle-Wittenberg, Mühlpforte 1, 06108 Halle, Germany.
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Meister A, Köhler K, Drescher S, Dobner B, Karlsson G, Edwards K, Hause G, Blume A. Mixing behaviour of a symmetrical single-chain bolaamphiphile with phospholipids. SOFT MATTER 2007; 3:1025-1031. [PMID: 32900052 DOI: 10.1039/b703152a] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The mixing behavior of the symmetric long-chain bolaamphiphile dotriacontane-1,1'-diyl-bis-[2-(trimethylammonio)ethylphosphate] (PC-C32-PC) with conventional phospholipids (DPPC, DMPC, and POPC) was investigated by differential scanning calorimetry and transmission electron microscopy. PC-C32-PC by itself forms nanofibers at room temperature, which convert to micellar aggregates at higher temperatures. The length of the bolaamphiphile corresponds roughly to the thickness of a lipid bilayer. However, a significant insertion of the bolaamphiphile into the phospholipid bilayer vesicles was not observed in any of the mixed systems. This is apparently due to packing problems caused by the larger space requirement of the phosphocholine headgroups of PC-C32-PC compared to the small cross-sectional area of the alkyl chain. Obviously, the insertion of these bolaamphiphiles into membrane structures with parallel oriented molecules leads to large void volumes because of this packing problem, so that the bolaamphiphiles prefer to self-assemble into fibers, where the chains can get in closer contact. On the other hand, up to a certain molar ratio, double-chain phospholipids can easily be inserted into the hydrophobic pockets of the bolaamphiphile fibers, where they stabilize the fiber structure.
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Affiliation(s)
- Annette Meister
- MLU Halle-Wittenberg, Institute of Chemistry, Physical Chemistry, Mühlpforte 1, 06108 Halle, Germany
| | - Karen Köhler
- MLU Halle-Wittenberg, Institute of Chemistry, Physical Chemistry, Mühlpforte 1, 06108 Halle, Germany
| | - Simon Drescher
- MLU Halle-Wittenberg, Institute of Pharmacy, Wolfgang-Langenbeck-Str. 4, 06120 Halle, Germany
| | - Bodo Dobner
- MLU Halle-Wittenberg, Institute of Pharmacy, Wolfgang-Langenbeck-Str. 4, 06120 Halle, Germany
| | - Göran Karlsson
- Uppsala University, Department of Physical and Analytical Chemistry, Box 579, SE-75123 Uppsala, Sweden
| | - Katarina Edwards
- Uppsala University, Department of Physical and Analytical Chemistry, Box 579, SE-75123 Uppsala, Sweden
| | - Gerd Hause
- MLU Halle-Wittenberg, Biocenter, Weinbergweg 22, 06120 Halle, Germany
| | - Alfred Blume
- MLU Halle-Wittenberg, Institute of Chemistry, Physical Chemistry, Mühlpforte 1, 06108 Halle, Germany
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Réthoré G, Montier T, Le Gall T, Delépine P, Cammas-Marion S, Lemiègre L, Lehn P, Benvegnu T. Archaeosomes based on synthetic tetraether-like lipids as novel versatile gene delivery systems. Chem Commun (Camb) 2007:2054-6. [PMID: 17713076 DOI: 10.1039/b618568a] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel cationic liposomes, termed "archaeosomes", based on mixtures of neutral/cationic bilayer-forming lipids and archaeobacterial synthetic tetraether-type bipolar lipids show efficient in vitro gene transfection properties and represent a new approach for modulating the lipidic membrane fluidity of the complexes they form with DNA.
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Affiliation(s)
- G Réthoré
- ENSCR, UMR CNRS 6226 Sciences Chimiques de Rennes, Equipe Synthèse Organique et Systèmes Organises, 35700 Rennes, France
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