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Ray R, Pal S, Das S, Jana NR. Direct Membrane Penetration and Cytosolic Delivery of Nanoparticles via Electrostatically Bound Amphiphiles. ACS APPLIED MATERIALS & INTERFACES 2024; 16:15819-15831. [PMID: 38517139 DOI: 10.1021/acsami.3c18750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Nanoparticles usually enter cells through energy-dependent endocytosis that involves their cytosolic entry via biomembrane-coated endosomes. In contrast, direct translocation of nanoparticles with straight access to cytosol/subcellular components without any membrane coating is limited to very selective conditions/approaches. Here we show that nanoparticles can switch from energy-dependent endocytosis to energy-independent direct membrane penetration once an amphiphile is electrostatically bound to their surface. Compared to endocytotic uptake, this direct cell translocation is faster and nanoparticles are distributed inside the cytosol without any lysosomal trafficking. We found that this direct cell translocation option is sensitive to the charges of both the nanoparticles and the amphiphile. We propose that an electrostatically bound amphiphile induces temporary opening of the cell membrane, which allows direct cell translocation of nanoparticles. This approach can be adapted for efficient subcellular targeting of nanoparticles and nanoparticle-based drug delivery application, bypassing the endosomal trapping and lysosomal degradation.
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Affiliation(s)
- Reeddhi Ray
- School of Materials Science, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Suman Pal
- Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269, United States
| | - Soumi Das
- School of Materials Science, Indian Association for the Cultivation of Science, Kolkata 700032, India
| | - Nikhil R Jana
- School of Materials Science, Indian Association for the Cultivation of Science, Kolkata 700032, India
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Wnętrzak A, Chachaj-Brekiesz A, Kobierski J, Dynarowicz-Latka P. The Structure of Oxysterols Determines Their Behavior at Phase Boundaries: Implications for Model Membranes and Structure-Activity Relationships. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1440:3-29. [PMID: 38036872 DOI: 10.1007/978-3-031-43883-7_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/02/2023]
Abstract
The presence of an additional polar group in the cholesterol backbone increases the hydrophilicity of resulting compounds (oxysterols), determines their arrangement at the phase boundary, and interactions with other lipids and proteins. As a result, physicochemical properties of biomembranes (i.e., elasticity, permeability, and ability to bind proteins) are modified, which in turn may affect their functioning. The observed effect depends on the type of oxysterol and its concentration and can be both positive (e.g., antiviral activity) or negative (disturbance of cholesterol homeostasis, signal transduction, and protein segregation). The membrane activity of oxysterols has been successfully studied using membrane models (vesicles, monolayers, and solid supported films). Membrane models, in contrast to the natural systems, provide the possibility to selectively examine the specific aspect of biomolecule-membrane interactions. Moreover, the gradual increase in the complexity of the used model allows to understand the molecular phenomena occurring at the membrane level. The interest in research on artificial membranes has increased significantly in recent years, mainly due to the development of modern and sophisticated physicochemical methods (static and dynamic) in both the micro- and nanoscale, which are applied with the assistance of powerful theoretical calculations. This review provides an overview of the most important findings on this topic in the current literature.
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Affiliation(s)
- Anita Wnętrzak
- Faculty of Chemistry, Jagiellonian University, Kraków, Poland.
| | | | - Jan Kobierski
- Department of Pharmaceutical Biophysics, Faculty of Pharmacy, Jagiellonian University Medical College, Kraków, Poland
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Kędzierski K, Rytel K, Barszcz B, Majchrzycki Ł. Single-Wall Carbon Nanohorn Langmuir-Schaefer Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:12124-12131. [PMID: 37586085 PMCID: PMC10469459 DOI: 10.1021/acs.langmuir.3c01396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 07/12/2023] [Indexed: 08/18/2023]
Abstract
A suspension of single-walled carbon nanohorn (SWCNH) aggregates with a size of approx. 50 nm was used to create a floating film at the water-air interface. The film was then transferred onto large-area quartz substrates using the Langmuir-Schaefer technique at varied surface pressures. The packaging and arrangement of SWCNHs in the film can be controlled during the process. The resulting films' optical and electrical properties were investigated, and the highest electrical conductivity and figure of merit parameter values were observed for the film transferred at surface pressure near the collapse point. These films had a surface density of less than 5 μg cm-2, making them ideal for use in ultra-light sensors, supercapacitors, and photovoltaic cell electrodes. The preparation and properties of the Langmuir-Schaefer films of carbon nanohorns are reported for the first time.
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Affiliation(s)
- Kamil Kędzierski
- Institut
of Physics, Poznan University of Technology, 60-965 Poznan, Poland
| | - Karol Rytel
- Institut
of Physics, Poznan University of Technology, 60-965 Poznan, Poland
| | - Bolesław Barszcz
- Institute
of Molecular Physics, Polish Academy of
Sciences, 60-179 Poznan, Poland
| | - Łukasz Majchrzycki
- Center
of Advanced Technology, Adam Mickiewicz
University, 61-614 Poznan, Poland
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The Effect of Selected Flavonoids and Lipoic Acid on Natural and Model Cell Membranes: Langmuir and Microelectrophoretic Methods. Molecules 2023; 28:molecules28031013. [PMID: 36770679 PMCID: PMC9920617 DOI: 10.3390/molecules28031013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 01/20/2023] Open
Abstract
The influence of kaempferol (K), myricetin (M) and lipoic acid (LA) on the properties of natural erythrocytes, isolated from animal blood and biological membrane models (monolayers and liposomes) made of phosphatidylcholine (PC), cholesterol (CHOL), and sphingomyelin (SM), CHOL in a ratio of 10:9, was investigated. The Langmuir method, Brewster angle microscopy (BAM) and microelectrophoresis were used. The presented results showed that modification of liposomes with kaempferol, myricetin and lipoic acid caused changes in the surface charge density and the isoelectric point value. Comparing the tested systems, several conclusions were made. (1) The isoelectric point for the DPPC:Chol:M (~2.2) had lower pH values compared to lipoic acid (pH~2.5) and kaempferol (pH~2.6). (2) The isoelectric point for the SM-Chol with myricetin (~3.0) had lower pH values compared to kaempferol (pH~3.4) and lipoic acid (pH~4.7). (3) The surface charge density values for the DPPC:Chol:M system in the range of pH 2-9 showed values from 0.2 to -2.5 × 10-2 C m-2. Meanwhile, for the DPPC:Chol:K and DPPC:Chol:LA systems, these values were higher at pH~2 (0.7 × 10-2 C m-2 and 0.8 × 10-2 C m-2) and lower at pH~9 (-2.1 × 10-2 C m-2 and -1.8 × 10-2 C m-2), respectively. (4) The surface charge density values for the SM:Chol:M system in the range of pH 2-9 showed values from 0.5 to -2.3 × 10-2 C m-2. Meanwhile, for the DPPC:Chol:K and DPPC:Chol:LA systems, these values were higher at pH~2 (0.8 × 10-2 C m-2), and lower at pH~9 (-1.0 × 10-2 C m-2 and -1.8 × 10-2 C m-2), respectively. (5) The surface charge density values for the erythrocytes with myricetin in the range of pH 2-9 showed values from 1.0 to -1.8 × 10-2 C m-2. Meanwhile, for the erythrocytes:K and erythrocytes:LA systems, these values, at pH~2, were 1.3 × 10-2 C m-2 and 0.8 × 10-2 C m-2 and, at pH~9, -1.7 × 10-2 C m-2 and -1.0 × 10-2 C m-2, respectively.
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Shrestha N, McCarron A, Rout-Pitt N, Donnelley M, Parsons DW, Hryciw DH. Essential Fatty Acid Deficiency in Cystic Fibrosis Disease Progression: Role of Genotype and Sex. Nutrients 2022; 14:nu14214666. [PMID: 36364928 PMCID: PMC9657825 DOI: 10.3390/nu14214666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/01/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Adequate intake of nutrients such as essential fatty acids (EFA) are critical in cystic fibrosis (CF). The clinical course of deterioration of lung function in people with CF has been shown to relate to nutrition. Independent of the higher energy consumption and malabsorption due to pancreatic insufficiency, EFA deficiency is closely associated with the risk of pulmonary infection, the most significant pathology in CF. This review will focus on the EFA deficiency identified in people with CF, as well as the limited progress made in deciphering the exact metabolic pathways that are dysfunctional in CF. Specifically, people with CF are deficient in linoleic acid, an omega 6 fatty acid, and the ratio of arachidonic acid (omega 6 metabolite) and docosahexaenoic acid (omega 3 metabolite) is increased. Analysis of the molecular pathways in bronchial cells has identified changes in the enzymes that metabolise EFA. However, fatty acid metabolism primarily occurs in the liver, with EFA metabolism in CF liver not yet investigated, indicating that further research is required. Despite limited understanding in this area, it is well known that adequate EFA concentrations are critical to normal membrane structure and function, and thus are important to consider in disease processes. Novel insights into the relationship between CF genotype and EFA phenotype will be discussed, in addition to sex differences in EFA concentrations in people with CF. Collectively, investigating the specific effects of genotype and sex on fatty acid metabolism may provide support for the management of people with CF via personalised genotype- and sex-specific nutritional therapies.
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Affiliation(s)
- Nirajan Shrestha
- School of Pharmacy and Medical Sciences, Griffith University, Southport, QLD 4222, Australia
| | - Alexandra McCarron
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women’s and Children’s Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
| | - Nathan Rout-Pitt
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women’s and Children’s Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
| | - Martin Donnelley
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women’s and Children’s Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
| | - David W. Parsons
- Adelaide Medical School, University of Adelaide, Adelaide, SA 5001, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA 5001, Australia
- Respiratory and Sleep Medicine, Women’s and Children’s Hospital, 72 King William Road, North Adelaide, SA 5006, Australia
| | - Deanne H. Hryciw
- School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia
- Institute for Health and Sport, Victoria University, Melbourne, VIC 3000, Australia
- Griffith Institute for Drug Discovery, Griffith University, Nathan, QLD 4111, Australia
- Correspondence: ; Tel.: +61-7-3735-3601
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Rytel K, Kędzierski K, Barszcz B, Biadasz A, Majchrzycki Ł, Wróbel D. The influence of zinc phthalocyanine on the formation and properties of multiwalled carbon nanotubes thin films on the air–solid and air–water interface. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hryciw DH, Jackson CA, Shrestha N, Parsons D, Donnelley M, McAinch AJ. Role for animal models in understanding essential fatty acid deficiency in cystic fibrosis. Cell Mol Life Sci 2021; 78:7991-7999. [PMID: 34741185 PMCID: PMC11072998 DOI: 10.1007/s00018-021-04014-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 10/11/2021] [Accepted: 10/25/2021] [Indexed: 10/19/2022]
Abstract
Essential fatty acid deficiency has been observed in most patients with Cystic Fibrosis (CF); however, pancreatic supplementation does not restore the deficiency, suggesting a different pathology independent of the pancreas. At this time, the underlying pathological mechanisms are largely unknown. Essential fatty acids are obtained from the diet and processed by organs including the liver and intestine, two organs significantly impacted by mutations in the cystic fibrosis transmembrane conductance regulator gene (Cftr). There are several CF animal models in a variety of species that have been developed to investigate molecular mechanisms associated with the CF phenotype. Specifically, global and systemic mutations in Cftr which mimic genotypic changes identified in CF patients have been generated in mice, rats, sheep, pigs and ferrets. These mutations produce CFTR proteins with a gating defect, trafficking defect, or an absent or inactive CFTR channel. Essential fatty acids are critical to CFTR function, with a bidirectional relationship between CFTR and essential fatty acids proposed. Currently, there are limited analyses on the essential fatty acid status in most of these animal models. Of interest, in the mouse model, essential fatty acid status is dependent on the genotype and resultant phenotype of the mouse. Future investigations should identify an optimal animal model that has most of the phenotypic changes associated with CF including the essential fatty acid deficiencies, which can be used in the development of therapeutics.
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Affiliation(s)
- Deanne H Hryciw
- School of Environment and Science, Griffith University, Nathan, QLD, Australia.
- Centre for Planetary Health and Food Security, Griffith University, Nathan, QLD, Australia.
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia.
| | - Courtney A Jackson
- School of Environment and Science, Griffith University, Nathan, QLD, Australia
| | - Nirajan Shrestha
- School of Pharmacy and Medical Sciences, Griffith University, Southport, QLD, Australia
| | - David Parsons
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
- Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, SA, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Martin Donnelley
- Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia
- Respiratory and Sleep Medicine, Women's and Children's Hospital, North Adelaide, SA, Australia
- Robinson Research Institute, University of Adelaide, Adelaide, SA, Australia
| | - Andrew J McAinch
- Institute for Health and Sport, Victoria University, Melbourne, VIC, Australia
- Australian Institute for Musculoskeletal Science (AIMSS), Victoria University, St. Albans, VIC, Australia
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8
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Wnętrzak A, Chachaj-Brekiesz A, Kuś K, Filiczkowska A, Lipiec E, Kobierski J, Petelska AD, Dynarowicz-Latka P. 25-hydroxycholesterol interacts differently with lipids of the inner and outer membrane leaflet - The Langmuir monolayer study complemented with theoretical calculations. J Steroid Biochem Mol Biol 2021; 211:105909. [PMID: 33984516 DOI: 10.1016/j.jsbmb.2021.105909] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/16/2021] [Accepted: 05/03/2021] [Indexed: 02/08/2023]
Abstract
25-hydroxycholesterol (25-OH), a molecule with unusual behavior at the air/water interface, being anchored to the water surface alternatively with a hydroxyl group at C(3) or C(25), has been investigated in mixtures with main membrane phospholipids (phosphatidylcholines - PCs, and phosphatidylethanolamines - PEs), characteristic of the outer and inner membrane leaflet, respectively. To achieve this goal, the classical Langmuir monolayer approach based on thermodynamic analysis of interactions was conducted in addition to microscopic imaging of films (in situ with BAM and after transfer onto mica with AFM), surface-sensitive spectroscopy (PM-IRRAS), as well as theoretical calculations. Our results show that the strength of interactions is primarily determined by the kind of polar group (strong, attractive interactions leading to surface complexes formation were found to occur with PCs while weak or repulsive ones with PEs). Subsequently, the saturation of phosphatidylcholines apolar chain(s) was found to be crucial for the structure of the formed complexes. Namely, saturated PC (DPPC) does not have preferences regarding the orientation of 25-OH molecule in surface complexes (which results in the two possible 25-OH arrangements), while unsaturated PC (DOPC) enforces one specific orientation of oxysterol (with C(3)-OH group). Our findings suggest that the transport of 25-OH between inner and outer membrane leaflet can proceed without orientation changes, which is thermodynamically advantageous. This explains results found in real systems showing significant differences in the rate of transmembrane transport of 25-OH and the other chain-oxidized oxysterols compared to their ring-oxidized analogues or cholesterol.
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Affiliation(s)
- Anita Wnętrzak
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland.
| | - Anna Chachaj-Brekiesz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Karolina Kuś
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Anna Filiczkowska
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Ewelina Lipiec
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Jan Kobierski
- Department of Pharmaceutical Biophysics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Aneta D Petelska
- Faculty of Chemistry, University of Bialystok, Ciołkowskiego 1K, 15-425, Bialystok, Poland
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Targosz-Korecka M, Wnętrzak A, Chachaj-Brekiesz A, Gonet-Surówka A, Kubisiak A, Filiczkowska A, Szymoński M, Dynarowicz-Latka P. Effect of selected B-ring-substituted oxysterols on artificial model erythrocyte membrane and isolated red blood cells. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2019; 1862:183067. [PMID: 31634445 DOI: 10.1016/j.bbamem.2019.183067] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 08/19/2019] [Accepted: 09/11/2019] [Indexed: 01/24/2023]
Abstract
In this paper, systematic studies concerning the influence of selected oxysterols on the structure and fluidity of human erythrocyte membrane modeled as Langmuir monolayers have been performed. Three oxidized cholesterol derivatives, namely 7α-hydroxycholesterol (7α-OH) 7β-hydroxycholesterol (7β-OH) and 7-ketocholesterol (7-K) have been incorporated in two different proportions (10 and 50%) into artificial erythrocyte membrane, modeled as two-component (cholesterol:POPC) Langmuir monolayer. All the studied oxysterols were found to alter membrane fluidity and the effect was more pronounced for higher oxysterol content. 7α-OH increased membrane fluidity while opposite effect was observed for 7β-OH and 7-K. Experiments performed on model systems have been verified in biological studies on red blood cells (RBC). Consistent results have been found, i.e. under the influence of 7α-OH, the elasticity of erythrocytes increased, and in the presence of other investigated oxysterols - decreased. The strongest effect was noticed for 7-K. Change of membrane elasticity was associated with the change of erythrocytes shape, being most noticeable under the influence of 7-K.
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Affiliation(s)
- Marta Targosz-Korecka
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - Anita Wnętrzak
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Anna Chachaj-Brekiesz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | | | - Agata Kubisiak
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - Anna Filiczkowska
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
| | - Marek Szymoński
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
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Fidalgo Rodriguez JL, Caseli L, Minones Conde J, Dynarowicz-Latka P. New look for an old molecule - Solid/solid phase transition in cholesterol monolayers. Chem Phys Lipids 2019; 225:104819. [PMID: 31525379 DOI: 10.1016/j.chemphyslip.2019.104819] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/25/2019] [Accepted: 09/12/2019] [Indexed: 01/30/2023]
Abstract
Surface pressure (π) - molecular area (A) isotherms of cholesterol were precisely measured to get insight into the orientation of molecules in Langmuir monolayers, which allowed to obtain detailed information on their phase behaviour. This was possible from the detailed analysis of the interfacial compressibility modulus versus surface pressure (Cs-1- π) plots (obtained from the experimental surface pressure, π - area, A isotherms) and films thickness measurements (applying Brewster angle microscope, BAM) complemented with polarization-modulation infrared reflection-absorption spectroscopy (PM-IRRAS). At first glance, the isotherm for cholesterol is characterized by the major slope change of surface pressure versus area per molecule. However, a more detailed analysis showed the presence of a discontinuity and slope change both upon the compression and expansion of the monolayer. This discontinuity is more accurately reflected in the Cs-1- π plot as a pseudo-plateau visible at π values between approximately 5 and 10 mN/m. This plateau was found to be temperature-dependent. Also, film thickness versus area plot (th-A) exhibits a pseudo-plateau in this region of surface pressures, in which the monolayer thickness increased gradually from 1.15 nm to 1.5 nm. Interestingly, although cholesterol has been intensively investigated in Langmuir monolayers, the existence of such a plateau have been overlooked previously. By linking experimental thickness values with theoretical molecular conformations, we have identified the presence of this plateau to the solid-solid (S-S') second-order transition. Using 2D analog of Clausius-Clapeyron equation, the thermodynamic functions (ΔH and ΔS) for this transition have been calculated. Based on monolayer experiments, the orientation of molecules in both solid phases was assumed to differ in the orientation of short alkyl chain attached to C17, which has additionally been confirmed with PM-IRRAS analysis.
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Affiliation(s)
- J L Fidalgo Rodriguez
- Department of Physical Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Spain
| | - L Caseli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, Brazil
| | - J Minones Conde
- Department of Physical Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Spain
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Fidalgo Rodríguez JL, Dynarowicz-Latka P, Minones Conde J. Interactions of cholesterol and 7‑ketocholesterol with unsaturated fatty acids of different unsaturation degree - The monolayer study. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2019; 1861:1428-1436. [PMID: 31189076 DOI: 10.1016/j.bbamem.2019.06.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 05/29/2019] [Accepted: 06/07/2019] [Indexed: 12/16/2022]
Abstract
Unsaturated fatty acids (UFAs) are known to lower the level of sterols in blood, which accounts for their cardioprotective effect. To understand the molecular basis of this effect, Langmuir monolayer studies have been performed. A series of UFAs differing in the length of the fatty acid chain and the number of double bonds (oleic acid, OA; linoleic acid, LA; stearidonic acid, SDA; eicosanoic acid, EA) were mixed with cholesterol and its more toxic oxidized derivative, 7‑ketocholesterol (7-KC), abundantly present in atheroma plaques. Strong attractive UFA-sterol interactions were attributed to the formation of "surface complexes", in which sterol molecules are bound, thereby reducing the amount of free sterol molecules. It has been found that strength of interactions increases with the degree of unsaturation of the acyl chain in UFA molecule. The most attractive interactions correspond to mixtures with SDA containing 70 mol% of 7-KC and 50 mol% of cholesterol. In both cases, the formation of high stability complexes of, respectively, 2:1 and 1:1 sterol/SDA stoichiometry has been proposed. Other complexes of lower stability and 1:2 stoichiometry were postulated for chol (or 7-KC)/LA systems. The complexes of the lowest stability correspond to chol (or 7-KC) mixtures with OA and EA of 1:1 stoichiometry. In all the cases, the interactions of 7-KC with UFAs are more energetically favorable versus cholesterol. The elongation of the hydrophobic chain of UFAs decreased the interactions with the studied sterols. The obtained results can be related to different conformations of the fatty acids chains.
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Affiliation(s)
- J L Fidalgo Rodríguez
- Department of Physical Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Spain
| | - P Dynarowicz-Latka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
| | - J Minones Conde
- Department of Physical Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, Spain
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Biadasz A, Rytel K, Kędzierski K, Adamski A, Kotkowiak M, Stachowiak A, Barszcz B, Jeong HY, Kim TD. The liquid crystal induced J-type aggregation of diketopyrrolopyrrole derivatives in monolayer. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Fidalgo Rodríguez J, Dynarowicz-Latka P, Miñones Conde J. Structure of unsaturated fatty acids in 2D system. Colloids Surf B Biointerfaces 2017; 158:634-642. [DOI: 10.1016/j.colsurfb.2017.07.016] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 06/10/2017] [Accepted: 07/05/2017] [Indexed: 10/19/2022]
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14
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Kharrat N, Aissa I, Sghaier M, Bouaziz M, Sellami M, Laouini D, Gargouri Y. Lipophilization of ascorbic acid: a monolayer study and biological and antileishmanial activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:9118-9127. [PMID: 25148258 DOI: 10.1021/jf5029398] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Ascorbyl lipophilic derivatives (Asc-C2 to Asc-C(18:1)) were synthesized in a good yield using lipase from Staphylococcus xylosus produced in our laboratory and immobilized onto silica aerogel. Results showed that esterification had little effect on radical-scavenging capacity of purified ascorbyl esters using DPPH assay in ethanol. However, long chain fatty acid esters displayed higher protection of target lipids from oxidation. Moreover, compared to ascorbic acid, synthesized derivatives exhibited an antibacterial effect. Furthermore, ascorbyl derivatives were evaluated, for the first time, for their antileishmanial effects against visceral (Leishmania infantum) and cutaneous parasites (Leishmania major). Among all the tested compounds, only Asc-C10, Asc-C12, and Asc-C(18:1) exhibited antileishmanial activities. The interaction of ascorbyl esters with a phospholipid monolayer showed that only medium and unsaturated long chain (Asc-C10 to Asc-C(18:1)) derivative esters were found to interact efficiently with mimetic membrane of leishmania. These properties would make ascorbyl derivatives good candidates to be used in cosmetic and pharmaceutical lipophilic formulations.
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Affiliation(s)
- Nadia Kharrat
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, ENIS, Université de Sfax , Route de Soukra, BPW 1173, 3038 Sfax, Tunisia
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15
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Hoff L, Foss PA, Dyrstad K, Klaveness J, Rongved P. Stabilization of Gas Bubbles Released from Water-Soluble Carbohydrates Using Amphiphilic Compounds: Preparation of Formulations and Acoustic Monitoring of Bubble Lifetime. J SURFACTANTS DETERG 2011; 14:585-593. [PMID: 21957396 PMCID: PMC3174375 DOI: 10.1007/s11743-011-1250-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Accepted: 01/20/2011] [Indexed: 11/28/2022]
Abstract
The ultrasound contrast agents Echovist® and Levovist® (Bayer AG, Schering AG, Germany) are based on the release of gas bubbles from milled α-d-galactose. In diagnostic ultrasound, for this class of contrast agents, there is a need for prolonged contrast duration. To investigate if new carbohydrate compositions could prolong the lifetime of the gas bubbles, α-d-galactose was mixed with other carbohydrates or amphiphiles with varying log P. Acoustic attenuation vs. time (390 s) area under the curve (A390) and bubble half-time (t½) were used as measures of prolonged lifetime of gas bubbles. The products, to which 0.1% of a lipophilic carboxylic acid (5β-cholanic acid, behenic acid, and melissic acid) has been added, showed more than 5, 7 and 11 times enhancement of A390, respectively, compared with the reference compound 2 (RC2) corresponding to the commercial product Levovist®. The half-time t ½ of the same compounds was prolonged more than 6 times compared with RC2. A partial least square (PLS) statistical analysis confirmed that, for additives, high log P carboxylic acids lead to the highest A390. The present results bear a promise of products with a more persistent in vivo ultrasound contrast effect than the commercially available agents.
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Affiliation(s)
- Lars Hoff
- Høgskolen i Vestfold, Postboks 2243, 3103 Tønsberg, Norway
| | - Per A. Foss
- Hunt Biosciences, Halsanvegen 24, 7600 Levanger, Norway
| | - Knut Dyrstad
- GE Healthcare ASA, P.O. Box 4220, 0401 Nydalen, Oslo, Norway
| | - Jo Klaveness
- School of Pharmacy, University of Oslo, P.O. Box 1155, 0316 Blindern, Oslo, Norway
| | - Pål Rongved
- School of Pharmacy, University of Oslo, P.O. Box 1155, 0316 Blindern, Oslo, Norway
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Oslo, P.O. Box 1068, 0316 Blindern, Oslo, Norway
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Cerezo J, Zúñiga J, Bastida A, Requena A, Cerón-Carrasco JP. Atomistic Molecular Dynamics Simulations of the Interactions of Oleic and 2-Hydroxyoleic Acids with Phosphatidylcholine Bilayers. J Phys Chem B 2011; 115:11727-38. [DOI: 10.1021/jp203498x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Javier Cerezo
- Departamento de Química Física, Universidad de Murcia, 30100 Murcia, Spain
| | - José Zúñiga
- Departamento de Química Física, Universidad de Murcia, 30100 Murcia, Spain
| | - Adolfo Bastida
- Departamento de Química Física, Universidad de Murcia, 30100 Murcia, Spain
| | - Alberto Requena
- Departamento de Química Física, Universidad de Murcia, 30100 Murcia, Spain
| | - José Pedro Cerón-Carrasco
- CEISAM, UMR CNRS 6230, BP 92208, Université de Nantes, 2, rue de la Houssiniére, 44322 Nantes Cedex 3, France
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