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Vidakovic I, Kornmueller K, Fiedler D, Khinast J, Fröhlich E, Leitinger G, Horn C, Quehenberger J, Spadiut O, Prassl R. Archaeosomes for Oral Drug Delivery: From Continuous Microfluidics Production to Powdered Formulations. Pharmaceutics 2024; 16:694. [PMID: 38931818 PMCID: PMC11206520 DOI: 10.3390/pharmaceutics16060694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 05/08/2024] [Accepted: 05/20/2024] [Indexed: 06/28/2024] Open
Abstract
Archaeosomes were manufactured from natural archaeal lipids by a microfluidics-assisted single-step production method utilizing a mixture of di- and tetraether lipids extracted from Sulfolobus acidocaldarius. The primary aim of this study was to investigate the exceptional stability of archaeosomes as potential carriers for oral drug delivery, with a focus on powdered formulations. The archaeosomes were negatively charged with a size of approximately 100 nm and a low polydispersity index. To assess their suitability for oral delivery, the archaeosomes were loaded with two model drugs: calcein, a fluorescent compound, and insulin, a peptide hormone. The archaeosomes demonstrated high stability in simulated intestinal fluids, with only 5% of the encapsulated compounds being released after 24 h, regardless of the presence of degrading enzymes or extremely acidic pH values such as those found in the stomach. In a co-culture cell model system mimicking the intestinal barrier, the archaeosomes showed strong adhesion to the cell membranes, facilitating a slow release of contents. The archaeosomes were loaded with insulin in a single-step procedure achieving an encapsulation efficiency of approximately 35%. These particles have been exposed to extreme manufacturing temperatures during freeze-drying and spray-drying processes, demonstrating remarkable resilience under these harsh conditions. The fabrication of stable dry powder formulations of archaeosomes represents a promising advancement toward the development of solid dosage forms for oral delivery of biological drugs.
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Affiliation(s)
- Ivan Vidakovic
- Division of Medical Physics and Biophysics, Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, 8010 Graz, Austria; (I.V.); (K.K.)
| | - Karin Kornmueller
- Division of Medical Physics and Biophysics, Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, 8010 Graz, Austria; (I.V.); (K.K.)
| | - Daniela Fiedler
- Institute of Process and Particle Engineering, Graz University of Technology, 8010 Graz, Austria;
| | | | - Eleonore Fröhlich
- Center for Medical Research, Medical University of Graz, 8010 Graz, Austria;
| | - Gerd Leitinger
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, 8010 Graz, Austria;
| | | | - Julian Quehenberger
- NovoArc GmbH, 1120 Vienna, Austria; (C.H.); (J.Q.)
- Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, 1060 Vienna, Austria;
| | - Oliver Spadiut
- Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, 1060 Vienna, Austria;
| | - Ruth Prassl
- Division of Medical Physics and Biophysics, Gottfried Schatz Research Center for Cell Signaling, Metabolism and Aging, Medical University of Graz, 8010 Graz, Austria; (I.V.); (K.K.)
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2
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Řezanka T, Kyselová L, Murphy DJ. Archaeal lipids. Prog Lipid Res 2023; 91:101237. [PMID: 37236370 DOI: 10.1016/j.plipres.2023.101237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 04/25/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023]
Abstract
The major archaeal membrane glycerolipids are distinguished from those of bacteria and eukaryotes by the contrasting stereochemistry of their glycerol backbones, and by the use of ether-linked isoprenoid-based alkyl chains rather than ester-linked fatty acyl chains for their hydrophobic moieties. These fascinating compounds play important roles in the extremophile lifestyles of many species, but are also present in the growing numbers of recently discovered mesophilic archaea. The past decade has witnessed significant advances in our understanding of archaea in general and their lipids in particular. Much of the new information has come from the ability to screen large microbial populations via environmental metagenomics, which has revolutionised our understanding of the extent of archaeal biodiversity that is coupled with a strict conservation of their membrane lipid compositions. Significant additional progress has come from new culturing and analytical techniques that are gradually enabling archaeal physiology and biochemistry to be studied in real time. These studies are beginning to shed light on the much-discussed and still-controversial process of eukaryogenesis, which probably involved both bacterial and archaeal progenitors. Puzzlingly, although eukaryotes retain many attributes of their putative archaeal ancestors, their lipid compositions only reflect their bacterial progenitors. Finally, elucidation of archaeal lipids and their metabolic pathways have revealed potentially interesting applications that have opened up new frontiers for biotechnological exploitation of these organisms. This review is concerned with the analysis, structure, function, evolution and biotechnology of archaeal lipids and their associated metabolic pathways.
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Affiliation(s)
- Tomáš Řezanka
- Institute of Microbiology, Czech Academy of Sciences, Vídeňská 1083, 142 00 Prague, Czech Republic
| | - Lucie Kyselová
- Research Institute of Brewing and Malting, Lípová 511, 120 44 Prague, Czech Republic
| | - Denis J Murphy
- School of Applied Sciences, University of South Wales, Pontypridd, CF37 1DL, United Kingdom.
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3
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Kejžar J, Osojnik Črnivec IG, Poklar Ulrih N. Advances in Physicochemical and Biochemical Characterization of Archaeosomes from Polar Lipids of Aeropyrum pernix K1 and Stability in Biological Systems. ACS OMEGA 2023; 8:2861-2870. [PMID: 36713696 PMCID: PMC9878630 DOI: 10.1021/acsomega.2c07406] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 12/29/2022] [Indexed: 06/18/2023]
Abstract
Archaeosomes are vesicles made from archaeal lipids. They are characterized by remarkable thermostability, resistance to enzymatic degradation, long-term stability, and immunomodulatory properties. In this review the current status of physicochemical properties of archaeal lipids and their stability in biological systems is presented, focusing on total polar lipids from Aeropyrum pernix K1. The isolated total polar lipids from Aeropyrum pernix K1 consist exclusively of glycerol ether lipids with isoprenoid groups attached to glycerol via ether linkages. More specifically, the two major polar lipids extracted from the membranes are C25,25-achaetidyl(glucosyl)inositol and C25,25-achaetidylinositol. An overview of the results of the effects of temperature and pH on the stability, structural organization, fluidity, and permeability of archaeosomes composed of pure C25,25 was examined by a combination of techniques, including fluorescence emission spectroscopy, electron paramagnetic resonance, differential scanning calorimetry, and confocal microscopy. We also compared the physicochemical properties of pure vesicles composed of either archaeal lipids or conventional lipids (e.g., 1,2-dipalmitoyl-sn-glycero-3-phosphocholine) with mixed vesicles composed of both lipid types. Archaeal lipids are discussed in terms of their potential use as a targeted drug delivery system based on the results of in vivo and cytotoxicity studies.
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Affiliation(s)
- Jan Kejžar
- Department
of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia
| | - Ilja Gasan Osojnik Črnivec
- Department
of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia
| | - Nataša Poklar Ulrih
- Department
of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia
- The
Centre of Excellence for Integrated Approaches in Chemistry and Biology
of Proteins (CipKeBiP), Jamova 39, SI-1000 Ljubljana, Slovenia
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4
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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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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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6
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Jebastin K, Narayanasamy D. Rationale utilization of phospholipid excipients: a distinctive tool for progressing state of the art in research of emerging drug carriers. J Liposome Res 2022; 33:1-33. [PMID: 35543241 DOI: 10.1080/08982104.2022.2069809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Phospholipids have a high degree of biocompatibility and are deemed ideal pharmaceutical excipients in the development of lipid-based drug delivery systems, because of their unique features (permeation, solubility enhancer, emulsion stabilizer, micelle forming agent, and the key excipients in solid dispersions) they can be used in a variety of pharmaceutical drug delivery systems, such as liposomes, phytosomes, solid lipid nanoparticles, etc. The primary usage of phospholipids in a colloidal pharmaceutical formulation is to enhance the drug's bioavailability with low aqueous solubility [i.e. Biopharmaceutical Classification System (BCS) Class II drugs], Membrane penetration (i.e. BCS Class III drugs), drug uptake and release enhancement or modification, protection of sensitive active pharmaceutical ingredients (APIs) from gastrointestinal degradation, a decrease of gastrointestinal adverse effects, and even masking of the bitter taste of orally delivered drugs are other uses. Phospholipid-based colloidal drug products can be tailored to address a wide variety of product requirements, including administration methods, cost, product stability, toxicity, and efficacy. Such formulations that are also a cost-effective method for developing medications for topical, oral, pulmonary, or parenteral administration. The originality of this review work is that we comprehensively evaluated the unique properties and special aspects of phospholipids and summarized how the individual phospholipids can be utilized in various types of lipid-based drug delivery systems, as well as listing newly marketed lipid-based products, patents, and continuing clinical trials of phospholipid-based therapeutic products. This review would be helpful for researchers responsible for formulation development and research into novel colloidal phospholipid-based drug delivery systems.
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Affiliation(s)
- Koilpillai Jebastin
- Department of Pharmaceutics, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, India
| | - Damodharan Narayanasamy
- Department of Pharmaceutics, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, India
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7
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Identification of a protein responsible for the synthesis of archaeal membrane-spanning GDGT lipids. Nat Commun 2022; 13:1545. [PMID: 35318330 PMCID: PMC8941075 DOI: 10.1038/s41467-022-29264-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/07/2022] [Indexed: 01/08/2023] Open
Abstract
Glycerol dibiphytanyl glycerol tetraethers (GDGTs) are archaeal monolayer membrane lipids that can provide a competitive advantage in extreme environments. Here, we identify a radical SAM protein, tetraether synthase (Tes), that participates in the synthesis of GDGTs. Attempts to generate a tes-deleted mutant in Sulfolobus acidocaldarius were unsuccessful, suggesting that the gene is essential in this organism. Heterologous expression of tes homologues leads to production of GDGT and structurally related lipids in the methanogen Methanococcus maripaludis (which otherwise does not synthesize GDGTs and lacks a tes homolog, but produces a putative GDGT precursor, archaeol). Tes homologues are encoded in the genomes of many archaea, as well as in some bacteria, in which they might be involved in the synthesis of bacterial branched glycerol dialkyl glycerol tetraethers.
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8
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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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9
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The Cell Membrane of Sulfolobus spp.-Homeoviscous Adaption and Biotechnological Applications. Int J Mol Sci 2020; 21:ijms21113935. [PMID: 32486295 PMCID: PMC7312580 DOI: 10.3390/ijms21113935] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/27/2020] [Accepted: 05/29/2020] [Indexed: 12/20/2022] Open
Abstract
The microbial cell membrane is affected by physicochemical parameters, such as temperature and pH, but also by the specific growth rate of the host organism. Homeoviscous adaption describes the process of maintaining membrane fluidity and permeability throughout these environmental changes. Archaea, and thereby, Sulfolobus spp. exhibit a unique lipid composition of ether lipids, which are altered in regard to the ratio of diether to tetraether lipids, number of cyclopentane rings and type of head groups, as a coping mechanism against environmental changes. The main biotechnological application of the membrane lipids of Sulfolobus spp. are so called archaeosomes. Archaeosomes are liposomes which are fully or partly generated from archaeal lipids and harbor the potential to be used as drug delivery systems for vaccines, proteins, peptides and nucleic acids. This review summarizes the influence of environmental parameters on the cell membrane of Sulfolobus spp. and the biotechnological applications of their membrane lipids.
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10
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Rozo AJ, Cox MH, Devitt A, Rothnie AJ, Goddard AD. Biophysical analysis of lipidic nanoparticles. Methods 2020; 180:45-55. [PMID: 32387313 DOI: 10.1016/j.ymeth.2020.05.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/29/2020] [Accepted: 05/01/2020] [Indexed: 12/18/2022] Open
Abstract
Biological nanoparticles include liposomes, extracellular vesicle and lipid-based discoidal systems. When studying such particles, there are several key parameters of interest, including particle size and concentration. Measuring these characteristics can be of particular importance in the research laboratory or when producing such particles as biotherapeutics. This article briefly describes the major types of lipid-containing nanoparticles and the techniques that can be used to study them. Such methodologies include electron microscopy, atomic force microscopy, dynamic light scattering, nanoparticle tracking analysis, flow cytometry, tunable resistive pulse sensing and microfluidic resistive pulse sensing. Whilst no technique is perfect for the analysis of all nanoparticles, this article provides advantages and disadvantages of each, highlighting the latest developments in the field. Finally, we demonstrate the use of microfluidic resistive pulse sensing for the analysis of biological nanoparticles.
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Affiliation(s)
- Annaïg J Rozo
- School of Life and Health Sciences, Aston University, Birmingham B4 7ET, UK
| | - Megan H Cox
- School of Life and Health Sciences, Aston University, Birmingham B4 7ET, UK; Meritics Ltd, Unit 3, Clipstone Brook Industrial Estate, Cherrycourt Way, Leighton Buzzard LU7 4GP, UK
| | - Andrew Devitt
- School of Life and Health Sciences, Aston University, Birmingham B4 7ET, UK
| | - Alice J Rothnie
- School of Life and Health Sciences, Aston University, Birmingham B4 7ET, UK
| | - Alan D Goddard
- School of Life and Health Sciences, Aston University, Birmingham B4 7ET, UK.
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11
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Dey S, Saha J. Minimal Coarse-Grained Modeling toward Implicit Solvent Simulation of Generic Bolaamphiphiles. J Phys Chem B 2020; 124:2938-2949. [DOI: 10.1021/acs.jpcb.0c00734] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Somajit Dey
- Department of Physics, University of Calcutta, 92, A.P.C Road, Kolkata 700009, India
| | - Jayashree Saha
- Department of Physics, University of Calcutta, 92, A.P.C Road, Kolkata 700009, India
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12
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Müller S, Gruhle K, Meister A, Hause G, Drescher S. Bolalipid-Doped Liposomes: Can Bolalipids Increase the Integrity of Liposomes Exposed to Gastrointestinal Fluids? Pharmaceutics 2019; 11:E646. [PMID: 31816937 PMCID: PMC6956191 DOI: 10.3390/pharmaceutics11120646] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 11/27/2019] [Accepted: 11/30/2019] [Indexed: 01/10/2023] Open
Abstract
The use of archaeal lipids and their artificial analogues, also known as bolalipids, represents a promising approach for the stabilization of classical lipid vesicles for oral application. In a previous study, we investigated the mixing behavior of three single-chain alkyl-branched bolalipids PC-C32(1,32Cn)-PC (n = 3, 6, 9) with either saturated or unsaturated phosphatidyl-cholines. We proved, that the bolalipids PC-C32(1,32C6)-PC and PC-C32(1,32C9)-PC show miscibility with 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) and 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC). In the present work, we extended our vesicle system to natural lipid mixtures using phosphatidylcholine from soy beans, and we investigated the effect of incorporated bolalipids on the integrity of these mixed liposomes (bolasomes) in different gastrointestinal fluids using a dithionite assay and a calcein release assay in combination with particle size measurements. Finally, we also studied the retention of calcein within the bolasomes during freeze-drying. As a main result, we could show that in particular PC-C32(1,32C6)-PC is able to increase the stability of bolasomes in simulated gastric fluid-a prerequisite for the further use of liposomes as oral drug delivery vehicles.
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Affiliation(s)
- Sindy Müller
- Institute of Pharmacy, Biophysical Pharmacy, Martin Luther University (MLU) Halle-Wittenberg, 06120 Halle (Saale), Germany; (S.M.); (K.G.)
| | - Kai Gruhle
- Institute of Pharmacy, Biophysical Pharmacy, Martin Luther University (MLU) Halle-Wittenberg, 06120 Halle (Saale), Germany; (S.M.); (K.G.)
| | - Annette Meister
- ZIK HALOmem and Institute of Biochemistry and Biotechnology, Charles Tanford Protein Center, MLU Halle-Wittenberg, 06120 Halle (Saale), Germany;
| | - Gerd Hause
- Biocenter, MLU Halle-Wittenberg, 06120 Halle (Saale), Germany;
| | - Simon Drescher
- Institute of Pharmacy, Biophysical Pharmacy, Martin Luther University (MLU) Halle-Wittenberg, 06120 Halle (Saale), Germany; (S.M.); (K.G.)
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13
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Schilrreff P, Simioni YR, Jerez HE, Caimi AT, de Farias MA, Villares Portugal R, Romero EL, Morilla MJ. Superoxide dismutase in nanoarchaeosomes for targeted delivery to inflammatory macrophages. Colloids Surf B Biointerfaces 2019; 179:479-487. [DOI: 10.1016/j.colsurfb.2019.03.061] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 03/14/2019] [Accepted: 03/27/2019] [Indexed: 02/07/2023]
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14
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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: 53] [Impact Index Per Article: 8.8] [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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15
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Wong CY, Al-Salami H, Dass CR. Recent advancements in oral administration of insulin-loaded liposomal drug delivery systems for diabetes mellitus. Int J Pharm 2018; 549:201-217. [DOI: 10.1016/j.ijpharm.2018.07.041] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2018] [Revised: 07/14/2018] [Accepted: 07/18/2018] [Indexed: 11/30/2022]
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16
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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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17
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Landi A, Law J, Hockman D, Logan M, Crawford K, Chen C, Kundu J, Ebensen T, Guzman CA, Deschatelets L, Krishnan L, Tyrrell DLJ, Houghton M. Superior immunogenicity of HCV envelope glycoproteins when adjuvanted with cyclic-di-AMP, a STING activator or archaeosomes. Vaccine 2017; 35:6949-6956. [PMID: 29089195 DOI: 10.1016/j.vaccine.2017.10.072] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/17/2017] [Accepted: 10/23/2017] [Indexed: 12/31/2022]
Abstract
Three decades after the discovery, hepatitis C virus (HCV) is still the leading cause of liver transplantation and poses a major threat to global health. In spite of recent advances in the development of direct acting antivirals, there is still a need for a prophylactic vaccine to limit the virus spread and protect at-risk populations, especially in developing countries, where the cost of the new treatments may severely limit access. The use of recombinant HCV glycoproteins E1E2 (rE1E2) in combination with the MF59, an oil-in-water emulsion-based adjuvant, has previously been shown to reduce the rate of chronicity in chimpanzees and to induce production of cross-neutralizing antibodies and cellular immune responses in human volunteers. To further improve neutralizing antibody responses in recipients along with robust T cell responses, we have explored the immunogenicity of different adjuvants when formulated with the HCV rE1E2 vaccine in mice. Our data show that cyclic di-adenosine monophosphate (c-di-AMP) and archaeosomes elicit strong neutralizing antibodies similar to those elicited using aluminum hydroxide/monophosphoryl lipid A (Alum/monophos. /MPLA) and MF59. However, both c-di-AMP and archaeosomes induced a more robust cellular immune response, which was confirmed by the detection of vaccine-specific poly-functional CD4+ T cells. We conclude that these adjuvants may substantially boost the immunogenicity of our E1E2 vaccine. In addition, our data also indicates that use of a partial or exclusive intranasal immunization regimen may also be feasible using c-di-AMP as adjuvant.
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Affiliation(s)
- A Landi
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada; Department of Virology and Department of Immunology, School of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - J Law
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - D Hockman
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - M Logan
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - K Crawford
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - C Chen
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - J Kundu
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - T Ebensen
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - C A Guzman
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - L Deschatelets
- Immunobiology Department, Human Health Therapeutics, National Research Council Canada, Montreal, Ottawa, ON K1A 0R6, Canada
| | - L Krishnan
- Immunobiology Department, Human Health Therapeutics, National Research Council Canada, Montreal, Ottawa, ON K1A 0R6, Canada
| | - D L J Tyrrell
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - M Houghton
- Li Ka Shing Institute of Virology, Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB T6G 2E1, Canada.
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18
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Jia Y, McCluskie MJ, Zhang D, Monette R, Iqbal U, Moreno M, Sauvageau J, Williams D, Deschatelets L, Jakubek ZJ, Krishnan L. In vitro evaluation of archaeosome vehicles for transdermal vaccine delivery. J Liposome Res 2017; 28:305-314. [DOI: 10.1080/08982104.2017.1376683] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Yimei Jia
- Department of Human Health Therapeutics, National Research Council Canada, Ottawa, Canada
| | - Michael J. McCluskie
- Department of Human Health Therapeutics, National Research Council Canada, Ottawa, Canada
| | - Dongling Zhang
- Department of Human Health Therapeutics, National Research Council Canada, Ottawa, Canada
| | - Robert Monette
- Department of Human Health Therapeutics, National Research Council Canada, Ottawa, Canada
| | - Umar Iqbal
- Department of Human Health Therapeutics, National Research Council Canada, Ottawa, Canada
| | - Maria Moreno
- Department of Human Health Therapeutics, National Research Council Canada, Ottawa, Canada
| | - Janelle Sauvageau
- Department of Human Health Therapeutics, National Research Council Canada, Ottawa, Canada
| | - Dean Williams
- Department of Human Health Therapeutics, National Research Council Canada, Ottawa, Canada
| | - Lise Deschatelets
- Department of Human Health Therapeutics, National Research Council Canada, Ottawa, Canada
| | - Zygmunt J. Jakubek
- Department of Measurement Science and Standards, National Research Council Canada, Ottawa, Canada
| | - Lakshmi Krishnan
- Department of Human Health Therapeutics, National Research Council Canada, Ottawa, Canada
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19
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Attar A, Bakir C, Yuce-Dursun B, Demir S, Cakmakci E, Danis O, Birbir M, Ogan A. Preparation, characterization, and in vitro evaluation of isoniazid and rifampicin-loaded archaeosomes. Chem Biol Drug Des 2017; 91:153-161. [DOI: 10.1111/cbdd.13066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 05/08/2017] [Accepted: 06/10/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Azade Attar
- Department of Bioengineering; Faculty of Chemical and Metallurgical Engineering; Yildiz Technical University; Istanbul Turkey
| | - Ceren Bakir
- Department of Chemistry; Faculty of Arts and Sciences; Marmara University; Istanbul Turkey
| | - Basak Yuce-Dursun
- Department of Chemistry; Faculty of Arts and Sciences; Marmara University; Istanbul Turkey
| | - Serap Demir
- Department of Chemistry; Faculty of Arts and Sciences; Marmara University; Istanbul Turkey
| | - Emrah Cakmakci
- Department of Chemistry; Faculty of Arts and Sciences; Marmara University; Istanbul Turkey
| | - Ozkan Danis
- Department of Chemistry; Faculty of Arts and Sciences; Marmara University; Istanbul Turkey
| | - Meral Birbir
- Department of Biology; Faculty of Arts and Sciences; Marmara University; Istanbul Turkey
| | - Ayse Ogan
- Department of Chemistry; Faculty of Arts and Sciences; Marmara University; Istanbul Turkey
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20
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Alavi M, Karimi N, Safaei M. Application of Various Types of Liposomes in Drug Delivery Systems. Adv Pharm Bull 2017; 7:3-9. [PMID: 28507932 PMCID: PMC5426731 DOI: 10.15171/apb.2017.002] [Citation(s) in RCA: 238] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Revised: 02/17/2017] [Accepted: 02/22/2017] [Indexed: 11/23/2022] Open
Abstract
Liposomes, due to their various forms, require further exploration. These structures can deliver both hydrophilic and hydrophobic drugs for cancer, antibacterial, antifungal, immunomodulation, diagnostics, ophtalmica, vaccines, enzymes and genetic elements. Preparation of liposomes results in different properties for these systems. In addition, based on preparation methods, liposomes types can be unilamellar, multilamellar and giant unilamellar; however, there are many factors and difficulties that affect the development of liposome drug delivery structure. In the present review, we discuss some problems that impact drug delivery by liposomes. In addition, we discuss a new generation of liposomes, which is utilized for decreasing the limitation of the conventional liposomes.
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Affiliation(s)
- Mehran Alavi
- Department of nanobiotecnology, 67149 Baghabrisham, Razi University, Kermanshah, Iran
| | - Naser Karimi
- Department of nanobiotecnology, 67149 Baghabrisham, Razi University, Kermanshah, Iran
| | - Mohsen Safaei
- Department of nanobiotecnology, 67149 Baghabrisham, Razi University, Kermanshah, Iran
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21
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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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22
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Caforio A, Driessen AJM. Archaeal phospholipids: Structural properties and biosynthesis. Biochim Biophys Acta Mol Cell Biol Lipids 2016; 1862:1325-1339. [PMID: 28007654 DOI: 10.1016/j.bbalip.2016.12.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 12/13/2016] [Accepted: 12/15/2016] [Indexed: 01/06/2023]
Abstract
Phospholipids are major components of the cellular membranes present in all living organisms. They typically form a lipid bilayer that embroiders the cell or cellular organelles, constitute a barrier for ions and small solutes and form a matrix that supports the function of membrane proteins. The chemical composition of the membrane phospholipids present in the two prokaryotic domains Archaea and Bacteria are vastly different. Archaeal lipids are composed of highly-methylated isoprenoid chains that are ether-linked to a glycerol-1-phosphate backbone while bacterial phospholipids consist of straight fatty acids bound by ester bonds to the enantiomeric glycerol-3-phosphate backbone. The chemical structure of the archaeal lipids and their compositional diversity ensures the required stability at extreme environmental conditions as many archaea thrive at such conditions including high or low temperature, high salinity and extreme acidic or alkaline pH values. However, not all archaea are extremophiles, and the presence of ether-linked phospholipids is a phylogenetic marker that distinguishes Archaea from other life forms. During the past decade, our understanding of the biosynthesis of archaeal lipids has progressed resulting in the characterization of the main biosynthetic steps of the pathway including the reconstitution of lipid biosynthesis in vitro. Here we describe the chemical and physical properties of archaeal lipids and membranes derived thereof, summarize the existing knowledge about the enzymology of the archaeal lipid biosynthetic pathway and discuss evolutionary theories associated with the "Lipid Divide" that resulted in the differentiation of bacterial and archaeal organisms. This article is part of a Special Issue entitled: Bacterial Lipids edited by Russell E. Bishop.
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Affiliation(s)
- Antonella Caforio
- Department of Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands; The Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands
| | - Arnold J M Driessen
- Department of Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands; The Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 7, 9747 AG, Groningen, The Netherlands.
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23
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Pan Y, Nitin N. Real-time measurements to characterize dynamics of emulsion interface during simulated intestinal digestion. Colloids Surf B Biointerfaces 2016; 141:233-241. [DOI: 10.1016/j.colsurfb.2016.01.053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Revised: 01/25/2016] [Accepted: 01/27/2016] [Indexed: 11/27/2022]
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24
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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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25
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Jensen SM, Christensen CJ, Petersen JM, Treusch AH, Brandl M. Liposomes containing lipids from Sulfolobus islandicus withstand intestinal bile salts: An approach for oral drug delivery? Int J Pharm 2015; 493:63-9. [DOI: 10.1016/j.ijpharm.2015.07.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Revised: 07/08/2015] [Accepted: 07/09/2015] [Indexed: 12/16/2022]
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26
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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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27
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Jain S, Caforio A, Driessen AJM. Biosynthesis of archaeal membrane ether lipids. Front Microbiol 2014; 5:641. [PMID: 25505460 PMCID: PMC4244643 DOI: 10.3389/fmicb.2014.00641] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Accepted: 11/06/2014] [Indexed: 01/05/2023] Open
Abstract
A vital function of the cell membrane in all living organism is to maintain the membrane permeability barrier and fluidity. The composition of the phospholipid bilayer is distinct in archaea when compared to bacteria and eukarya. In archaea, isoprenoid hydrocarbon side chains are linked via an ether bond to the sn-glycerol-1-phosphate backbone. In bacteria and eukarya on the other hand, fatty acid side chains are linked via an ester bond to the sn-glycerol-3-phosphate backbone. The polar head groups are globally shared in the three domains of life. The unique membrane lipids of archaea have been implicated not only in the survival and adaptation of the organisms to extreme environments but also to form the basis of the membrane composition of the last universal common ancestor (LUCA). In nature, a diverse range of archaeal lipids is found, the most common are the diether (or archaeol) and the tetraether (or caldarchaeol) lipids that form a monolayer. Variations in chain length, cyclization and other modifications lead to diversification of these lipids. The biosynthesis of these lipids is not yet well understood however progress in the last decade has led to a comprehensive understanding of the biosynthesis of archaeol. This review describes the current knowledge of the biosynthetic pathway of archaeal ether lipids; insights on the stability and robustness of archaeal lipid membranes; and evolutionary aspects of the lipid divide and the LUCA. It examines recent advances made in the field of pathway reconstruction in bacteria.
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Affiliation(s)
- Samta Jain
- Department of Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen Netherlands ; The Zernike Institute for Advanced Materials, University of Groningen, Groningen Netherlands
| | - Antonella Caforio
- Department of Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen Netherlands ; The Zernike Institute for Advanced Materials, University of Groningen, Groningen Netherlands
| | - Arnold J M Driessen
- Department of Molecular Microbiology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, Groningen Netherlands ; The Zernike Institute for Advanced Materials, University of Groningen, Groningen Netherlands
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28
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Reconstitution of Bacteriorhodopsin into Cyclic Lipid Vesicles. Biosci Biotechnol Biochem 2014; 72:1623-5. [DOI: 10.1271/bbb.80050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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29
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30
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Patel GB, Chen W. Archaeal lipid mucosal vaccine adjuvant and delivery system. Expert Rev Vaccines 2014; 9:431-40. [DOI: 10.1586/erv.10.34] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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MALIK AMARILA, SANTOSO IMAN, YEHUDA ANDI, K.U. FREISLEBEN SERUNI, INAWATIWANAND SEPTELIAI, HUBER HARALD, LUTHFA ZESSINDA, SALEH ROSARI, FREISLEBEN HANSJOACHIM. Characterization of Thermoplasma Species Cultured from Sampling on Tangkuban Perahu, Indonesia. MICROBIOLOGY INDONESIA 2014. [DOI: 10.5454/mi.8.1.3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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32
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Polysorbate 20 vesicles as oral delivery system: In vitro characterization. Colloids Surf B Biointerfaces 2013; 104:200-6. [DOI: 10.1016/j.colsurfb.2012.10.036] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 10/19/2012] [Accepted: 10/23/2012] [Indexed: 11/21/2022]
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33
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Napotnik T, Valant J, Gmajner D, Passamonti S, Miklavčič D, Ulrih NP. Cytotoxicity and uptake of archaeosomes prepared from Aeropyrum pernix lipids. Hum Exp Toxicol 2013; 32:950-9. [DOI: 10.1177/0960327113477875] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Archaeon Aeropyrum pernix K1 is an obligate aerobic hyperthermophilic organism with C25,25-archeol membrane lipids with head groups containing inositol. Interactions of archaeosomes, liposomes prepared from lipids of A. pernix, with mammalian cells in vitro were studied. In vitro cytotoxicity was tested on five different cell lines: rodent mouse melanoma cells (B16-F1) and Chinese hamster ovary (CHO) cells, and three human cell lines—epithelial colorectal adenocarcinoma cells (CACO-2), liver hepatocellular carcinoma cell line (Hep G2) and endothelial umbilical vein cell line (EA.hy926). Archaeosomes were nontoxic to human Hep G2, CACO-2 and mildly toxic to rodent CHO and B16-F1 cells but showed strong cytotoxic effect on EA.hy926 cells. Confocal microscopy revealed that archaeosomes are taken up by endocytosis. The uptake of archaeosomes and the release of loaded calcein are more prominent in EA.hy926 cells, which is in line with high toxicity toward these cells. The mechanisms of uptake, release and action in these cells as well as in vivo functioning have to be further studied for possible targeted drug delivery.
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Affiliation(s)
- T.B. Napotnik
- Department of Biomedical Engineering, Faculty of Electrical Engineering, University of Ljubljana, Tržaška, Ljubljana, Slovenia
| | - J. Valant
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva, Ljubljana, Slovenia
| | - D. Gmajner
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva, Ljubljana, Slovenia
| | - S. Passamonti
- Department of Life Sciences, University of Trieste, Via L. Giorgeri, Trieste, Italy
| | - D. Miklavčič
- Department of Biomedical Engineering, Faculty of Electrical Engineering, University of Ljubljana, Tržaška, Ljubljana, Slovenia
| | - N. P. Ulrih
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva, Ljubljana, Slovenia
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Renukuntla J, Vadlapudi AD, Patel A, Boddu SHS, Mitra AK. Approaches for enhancing oral bioavailability of peptides and proteins. Int J Pharm 2013; 447:75-93. [PMID: 23428883 DOI: 10.1016/j.ijpharm.2013.02.030] [Citation(s) in RCA: 399] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 12/28/2012] [Accepted: 02/12/2013] [Indexed: 12/20/2022]
Abstract
Oral delivery of peptide and protein drugs faces immense challenge partially due to the gastrointestinal (GI) environment. In spite of considerable efforts by industrial and academic laboratories, no major breakthrough in the effective oral delivery of polypeptides and proteins has been accomplished. Upon oral administration, gastrointestinal epithelium acts as a physical and biochemical barrier for absorption of proteins resulting in low bioavailability (typically less than 1-2%). An ideal oral drug delivery system should be capable of (a) maintaining the integrity of protein molecules until it reaches the site of absorption, (b) releasing the drug at the target absorption site, where the delivery system appends to that site by virtue of specific interaction, and (c) retaining inside the gastrointestinal tract irrespective of its transitory constraints. Various technologies have been explored to overcome the problems associated with the oral delivery of macromolecules such as insulin, gonadotropin-releasing hormones, calcitonin, human growth factor, vaccines, enkephalins, and interferons, all of which met with limited success. This review article intends to summarize the physiological barriers to oral delivery of peptides and proteins and novel pharmaceutical approaches to circumvent these barriers and enhance oral bioavailability of these macromolecules.
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Affiliation(s)
- Jwala Renukuntla
- Division of Pharmaceutical Sciences, South College School of Pharmacy, 400 Goody's Lane, Knoxville, TN 37931, USA
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Alavi SE, Mansouri H, Esfahani MKM, Movahedi F, Akbarzadeh A, Chiani M. Archaeosome: as new drug carrier for delivery of Paclitaxel to breast cancer. Indian J Clin Biochem 2013; 29:150-3. [PMID: 24757295 DOI: 10.1007/s12291-013-0305-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 01/24/2013] [Indexed: 01/25/2023]
Abstract
In the present study, paclitaxel was archaeosomed to reduce side effects and improve its therapeutic index. Carriers have made a big evolution in treatment of many diseases in recent years. Lipid carriers are of special importance among carriers. Archaeosome is one of the lipid carriers. Paclitaxel is one of the drugs used to treat breast cancer which has some unwanted side effects despite its therapeutic effects. Archaeosomes were extracted from methanogenic archi bacteria and synthesized with a certain ratio of paclitaxel in PBS. The mean diameter of archaeosomal paclitaxel was measured by Zeta sizer instrument, Drug releasing of archaeosomal paclitaxel was examined within 26 h which results showed that the most drug releasing occurs during first 3 h. The cytotoxicity effect of archaeosomal paclitaxel on breast cancer's cell line was evaluated by MTT assay which results showed that the cytotoxicity effect of archaeosomal paclitaxel on breast cancer's cell line is more than that of the standard paclitaxel formulation. The results indicated that new drug delivery of paclitaxel using archaeosome, increases the therapeutic index of the drug.
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Affiliation(s)
- Seyed Ebrahim Alavi
- Department of Chemical Engineering, Lamerd Branch, Islamic Azad University, Lamerd, Iran ; Pilot Biotechnology Department, Pasteur Institute of Iran, No 358, 12 Farvardin Street, Jomhoori Avenue, 13169-43551 Tehran, Iran
| | - Hamidreza Mansouri
- Department of Chemical Engineering, Lamerd Branch, Islamic Azad University, Lamerd, Iran
| | - Maedeh Koohi Moftakhari Esfahani
- Department of Chemical Engineering, Lamerd Branch, Islamic Azad University, Lamerd, Iran ; Pilot Biotechnology Department, Pasteur Institute of Iran, No 358, 12 Farvardin Street, Jomhoori Avenue, 13169-43551 Tehran, Iran
| | - Fatemeh Movahedi
- Department of Chemical Engineering, Lamerd Branch, Islamic Azad University, Lamerd, Iran ; Pilot Biotechnology Department, Pasteur Institute of Iran, No 358, 12 Farvardin Street, Jomhoori Avenue, 13169-43551 Tehran, Iran
| | - Azim Akbarzadeh
- Pilot Biotechnology Department, Pasteur Institute of Iran, No 358, 12 Farvardin Street, Jomhoori Avenue, 13169-43551 Tehran, Iran
| | - Mohsen Chiani
- Pilot Biotechnology Department, Pasteur Institute of Iran, No 358, 12 Farvardin Street, Jomhoori Avenue, 13169-43551 Tehran, Iran
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36
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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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HANDAYANI SRI, SANTOSO IMAN, FREISLEBEN HANSJOACHIM, HUBER HARALD, ANDI, ARDIANSYAH FERY, MULYANTO CENMI, LUTHFA ZESSINDA, SALEH ROSARI, FREISLEBEN SERUNIKUSUMAUDYANINGSIH, WANANDI SEPTELIAINAWATI, THOMM MICHAEL. Archaeal Life on Tangkuban Perahu-Sampling and Culture Growth in Indonesian Laboratories. HAYATI JOURNAL OF BIOSCIENCES 2012. [DOI: 10.4308/hjb.19.3.150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Exploring the fate of liposomes in the intestine by dynamic in vitro lipolysis. Int J Pharm 2012; 437:253-63. [PMID: 22939968 DOI: 10.1016/j.ijpharm.2012.08.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2012] [Revised: 08/06/2012] [Accepted: 08/09/2012] [Indexed: 10/28/2022]
Abstract
Liposomes are generally well tolerated drug delivery systems with a potential use for the oral route. However, little is known about the fate of liposomes during exposure to the conditions in the gastro-intestinal tract (GIT). To gain a better understanding of liposome stability in the intestine, a dynamic in vitro lipolysis model, which so far has only been used for the in vitro characterisation of other lipid-based drug delivery systems, was applied to different liposomal formulations. Liposome size and phospholipid (PL) digestion were determined as two markers for liposome stability. In addition, the effect of PL degradation on the ability to maintain liposomally incorporated danazol in solution during lipolysis was evaluated in order to address the feasibility of liposomes designed for oral administration. Rate and extend of hydrolysis of PLs mediated by pancreatic enzymes was determined by titration and HPLC. Size of liposomes was determined by dynamic light scattering during incubation in lipolysis medium (LM) and during lipolysis. SPC-based (soy phosphatidylcholine) liposomes were stable in LM, whereas for EPC-3-based (hydrated egg phosphatidylcholine) formulations the formation of aggregates of around 1 μm in diameter was observed over time. After 60 min lipolysis more than 80% of PLs of the SPC-liposomes were digested, but dependent on the liposome concentration only a slight change in size and size distribution could be observed. Although EPC-3 formulations did form aggregates during lipolysis, the lipids exhibited a higher stability compared to SPC and only 30% of the PLs were digested. No direct correlation between liposome integrity assessed by vesicle size and PL digestion was observed. Danazol content in the liposomes was around 5% (mol/mol danazol/total lipid) and hardly any precipitation was detected during the lipolysis assay, despite pronounced lipolytic degradation and change in vesicle size. In conclusion, the tested dynamic in vitro lipolysis model is suitable for the assessment of liposome stability in the intestine. Furthermore, liposomes might be a useful alternative to other lipid based delivery systems for the oral delivery of poorly soluble drugs.
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Šuštar V, Zelko J, Lopalco P, Lobasso S, Ota A, Ulrih NP, Corcelli A, Kralj-Iglič V. Morphology, biophysical properties and protein-mediated fusion of archaeosomes. PLoS One 2012; 7:e39401. [PMID: 22792173 PMCID: PMC3391208 DOI: 10.1371/journal.pone.0039401] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 05/22/2012] [Indexed: 12/22/2022] Open
Abstract
As variance from standard phospholipids of eubacteria and eukaryotes, archaebacterial diether phospholipids contain branched alcohol chains (phytanol) linked to glycerol exclusively with ether bonds. Giant vesicles (GVs) constituted of different species of archaebacterial diether phospholipids and glycolipids (archaeosomes) were prepared by electroformation and observed under a phase contrast and/or fluorescence microscope. Archaebacterial lipids and different mixtures of archaebacterial and standard lipids formed GVs which were analysed for size, yield and ability to adhere to each other due to the mediating effects of certain plasma proteins. GVs constituted of different proportions of archaeal or standard phosphatidylcholine were compared. In nonarchaebacterial GVs (in form of multilamellar lipid vesicles, MLVs) the main transition was detected at Tm = 34. 2°C with an enthalpy of ΔH = 0.68 kcal/mol, whereas in archaebacterial GVs (MLVs) we did not observe the main phase transition in the range between 10 and 70°C. GVs constituted of archaebacterial lipids were subject to attractive interaction mediated by beta 2 glycoprotein I and by heparin. The adhesion constant of beta 2 glycoprotein I – mediated adhesion determined from adhesion angle between adhered GVs was in the range of 10−8 J/m2. In the course of protein mediated adhesion, lateral segregation of the membrane components and presence of thin tubular membranous structures were observed. The ability of archaebacterial diether lipids to combine with standard lipids in bilayers and their compatibility with adhesion-mediating molecules offer further evidence that archaebacterial lipids are appropriate for the design of drug carriers.
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Affiliation(s)
- Vid Šuštar
- Laboratory of Clinical Biophysics, Chair of Orthopaedics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Jasna Zelko
- Laboratory of Clinical Biophysics, Chair of Orthopaedics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Patrizia Lopalco
- Department of Medical Biochemistry, Biology and Physics, University of Bari Aldo Moro, Bari, Italy
| | - Simona Lobasso
- Department of Medical Biochemistry, Biology and Physics, University of Bari Aldo Moro, Bari, Italy
| | - Ajda Ota
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Nataša Poklar Ulrih
- Department of Food Science and Technology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Angela Corcelli
- Department of Medical Biochemistry, Biology and Physics, University of Bari Aldo Moro, Bari, Italy
- IPCF-CNR, Bari, Italy
| | - Veronika Kralj-Iglič
- Biomedical Research Group, Faculty of Health Sciences, University of Ljubljana, Ljubljana, Slovenia
- * E-mail:
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González-Paredes A, Clarés-Naveros B, Ruiz-Martínez MA, Durbán-Fornieles JJ, Ramos-Cormenzana A, Monteoliva-Sánchez M. Delivery systems for natural antioxidant compounds: Archaeosomes and archaeosomal hydrogels characterization and release study. Int J Pharm 2011; 421:321-31. [DOI: 10.1016/j.ijpharm.2011.09.042] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2011] [Revised: 09/22/2011] [Accepted: 09/27/2011] [Indexed: 11/25/2022]
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41
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Parmentier J, Thewes B, Gropp F, Fricker G. Oral peptide delivery by tetraether lipid liposomes. Int J Pharm 2011; 415:150-7. [DOI: 10.1016/j.ijpharm.2011.05.066] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2010] [Revised: 03/21/2011] [Accepted: 05/26/2011] [Indexed: 10/18/2022]
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42
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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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43
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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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44
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Li Z, Chen J, Sun W, Xu Y. Investigation of archaeosomes as carriers for oral delivery of peptides. Biochem Biophys Res Commun 2010; 394:412-7. [DOI: 10.1016/j.bbrc.2010.03.041] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2010] [Accepted: 03/08/2010] [Indexed: 10/19/2022]
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45
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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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46
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Hermida LG, Sabés-Xamaní M, Barnadas-Rodríguez R. Combined strategies for liposome characterization during in vitro digestion. J Liposome Res 2009; 19:207-19. [PMID: 19548842 DOI: 10.1080/08982100902740847] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Three types of pyranine (HPTS)-containing liposomes were prepared by high-pressure homogenization under optimized conditions. At 37 degrees C, they were 1) fluid-state vesicles made from soybean phosphatidylcholine (SPC), 2) gel-state liposomes made from hydrogenated SPC (HSPC), and 3) solid-disordered membranes obtained from HSPC and cholesterol (HSPC-Chol). These liposome formulations were characterized before, during, and after in vitro digestion, which involved the presence of pH gradients, enzymes, and bile salts. Mean sizes and size distributions of the vesicles were determined by DLS; (31)P-NMR (nuclear magnetic resonance) was used to quantify lyso-PC forms; internal pH was monitored throughout digestion with two different fluorescent pH probes; and changes in bilayer permeability and HPTS encapsulation were determined by size-exclusion chromatography and fluorimetry. Differential scanning calorimetry analysis was also performed in order to study the effect of digestion on HSPC vesicles. SPC liposomes were physically stable during digestion; they presented 8% lyso-forms and an HPTS encapsulation around 85% after in vitro digestion. However, they were extremely permeable to ions, so that the internal pH immediately equilibrated with the bulk pH. HSPC liposomes were the most affected by the digestive process. Even though they were chemically stable, as inferred from the low lyso-PC content, very important changes in their size distribution were observed. A final 50% HPTS leakage was quantified after in vitro digestion. Nevertheless, they were the least permeable to protons under pH gradients. HSPC-Chol vesicles presented intermediate permeability to protons, having their internal pH decreased from approximately 6.8 to 4.6 after 1 hour of incubation at pH 2. This was the most chemically stable formulation and showed the highest encapsulation, even after in vitro digestion. Therefore, HSPC-Chol liposomes would be the most adequate choice for the design of lipid products for oral administration.
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Affiliation(s)
- Laura G Hermida
- Centro de Investigación y Desarrollo en Química, Instituto Nacional de Tecnología Industrial, Buenos Aires, Argentina
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47
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González-Paredes A, Manconi M, Caddeo C, Ramos-Cormenzana A, Monteoliva-Sánchez M, Fadda AM. Archaeosomes as carriers for topical delivery of betamethasone dipropionate:in vitroskin permeation study. J Liposome Res 2009; 20:269-76. [DOI: 10.3109/08982100903402962] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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48
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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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49
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Bouwmeester H, Dekkers S, Noordam MY, Hagens WI, Bulder AS, de Heer C, ten Voorde SE, Wijnhoven SW, Marvin HJ, Sips AJ. Review of health safety aspects of nanotechnologies in food production. Regul Toxicol Pharmacol 2009; 53:52-62. [DOI: 10.1016/j.yrtph.2008.10.008] [Citation(s) in RCA: 545] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2008] [Revised: 09/22/2008] [Accepted: 10/27/2008] [Indexed: 12/29/2022]
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50
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Patel GB, Ponce A, Zhou H, Chen W. Structural Characterization of Archaeal Lipid Mucosal Vaccine Adjuvant and Delivery (AMVAD) Formulations Prepared by Different Protocols and Their Efficacy Upon Intranasal Immunization of Mice. J Liposome Res 2008; 18:127-43. [DOI: 10.1080/08982100802129232] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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