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Bravo-Alfaro DA, Ochoa-Rodríguez LR, Prokhorov Y, Pérez-Robles JF, Sampieri-Moran JM, García-Casillas PE, Paul S, García HS, Luna-Bárcenas G. Nanoemulsions of betulinic acid stabilized with modified phosphatidylcholine increase the stability of the nanosystems and the drug's bioavailability. Colloids Surf B Biointerfaces 2024; 245:114291. [PMID: 39368424 DOI: 10.1016/j.colsurfb.2024.114291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 09/02/2024] [Accepted: 10/02/2024] [Indexed: 10/07/2024]
Abstract
Betulinic acid (BA) is a natural compound with significant potential for treating various diseases, including cancer and AIDS, and possesses additional anti-inflammatory and antibacterial properties. However, its clinical application is limited because of its low solubility in water, which impairs its distribution within the body. To overcome this challenge, nanoemulsions have been developed to improve the bioavailability of such poorly soluble drugs. This study investigated modified phosphatidylcholine (PC), where some fatty acids were replaced with conjugated linoleic acid (CLA) to stabilize BA nanoemulsions. The modified PC was used to prepare nanoemulsions with droplet sizes of up to 45 nanometers. These nanoemulsions maintained stability for 60 days at room temperature (25°C±2°C) and under refrigeration (5°C±1°C), with no signs of instability. Nanoemulsions stabilized with CLA-modified PC achieved a higher drug encapsulation rate (93.5±4.3 %) than those using natural PC (82.8±4.2 %). In an in vivo model, both nanoemulsion formulations significantly increased BA absorption, with CLA-modified PC enhancing absorption by 21.3±1.3 times and natural PC by 20±2.3 times compared to the free drug. This suggests that nanoemulsions with modified PC could improve the stability and efficacy of BA in clinical applications.
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Affiliation(s)
- Diego A Bravo-Alfaro
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing, Epigmenio González 500 Fracc., Qro., San Pablo, Querétaro 76130, Mexico
| | - Laura R Ochoa-Rodríguez
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Libramiento Norponiente 2000, Fracc. Real de Juriquilla, Santiago de Querétaro, Qro, 76230, Mexico
| | - Yevgen Prokhorov
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Libramiento Norponiente 2000, Fracc. Real de Juriquilla, Santiago de Querétaro, Qro, 76230, Mexico
| | - Juan Francisco Pérez-Robles
- Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Libramiento Norponiente 2000, Fracc. Real de Juriquilla, Santiago de Querétaro, Qro, 76230, Mexico
| | - Jessica M Sampieri-Moran
- Unidad de Investigación y Desarrollo de Alimentos, Tecnológico Nacional de México/IT de Veracruz, M.A. de Quevedo 2779, col. Formando Hogar, Veracruz, Ver, 91897, Mexico
| | - Perla Elvia García-Casillas
- Centro de Investigación en Química Aplicada, Enrique Reyna H. 140, San José de los Cerritos, Coahuila 25294, Mexico
| | - Sujay Paul
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Queretaro, Av. Epigmenio Gonzalez, No. 500 Fracc., San Pablo, Querétaro CP 76130, Mexico
| | - Hugo S García
- Unidad de Investigación y Desarrollo de Alimentos, Tecnológico Nacional de México/IT de Veracruz, M.A. de Quevedo 2779, col. Formando Hogar, Veracruz, Ver, 91897, Mexico.
| | - Gabriel Luna-Bárcenas
- Tecnologico de Monterrey, Institute of Advanced Materials for Sustainable Manufacturing, Epigmenio González 500 Fracc., Qro., San Pablo, Querétaro 76130, Mexico.
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2
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Aguilar-Barrientos JP, Pech-Canul MA, Fernández-Herrera MA. Corrosion Inhibition of Carbon Steel in Neutral Chloride Solutions Using Salts of Primary Bile Acids. ACS OMEGA 2024; 9:40980-40991. [PMID: 39372013 PMCID: PMC11447809 DOI: 10.1021/acsomega.4c06362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2024] [Revised: 08/22/2024] [Accepted: 09/06/2024] [Indexed: 10/08/2024]
Abstract
Due to growing environmental concerns and regulatory pressures, the demand for environmentally friendly corrosion inhibitors has increased. Biosurfactants are biodegradable and have a low toxicity. However, very few studies have reported on their potential use as corrosion inhibitors. The present study reports the novel application of two bile salts (sodium cholate NaC and sodium chenodeoxycholate NaCDC) as environmentally friendly corrosion inhibitors for carbon steel in a neutral 20 mM NaCl solution. The results of potentiodynamic polarization and electrochemical impedance measurements showed that when added at a concentration of 5 mM, the corrosion inhibition efficiencies of NaC and NaCDC were about 60% and 85%, respectively. The poor inhibitory character of NaC was confirmed by XPS analysis, revealing the formation of oxidative corrosion products on the steel surface. For the steel sample immersed in the solution containing NaCDC, the XPS measurements showed clear evidence of the presence of an organic layer and a passive oxide film on the steel surface. While the steroidal skeleton of NaC is characterized by marked biplanarity (considering its hydrophobic and hydrophilic faces), NaCDC features a steroidal ring with a hydrophilic edge (it does not exhibit biplanarity). Thus, the self-assembly and adsorption behavior of these bile salts on the steel surface are different, leading in the case of NaCDC to form a densely packed protective organic layer.
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Affiliation(s)
- Juan P. Aguilar-Barrientos
- Departamento de Física
Aplicada, Centro de Investigación
y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida. Km. 6 Antigua
Carretera a Progreso, Apdo. Postal 73, Cordemex, Merida, Yucatan 97310, Mexico
| | - Máximo A. Pech-Canul
- Departamento de Física
Aplicada, Centro de Investigación
y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida. Km. 6 Antigua
Carretera a Progreso, Apdo. Postal 73, Cordemex, Merida, Yucatan 97310, Mexico
| | - María A. Fernández-Herrera
- Departamento de Física
Aplicada, Centro de Investigación
y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida. Km. 6 Antigua
Carretera a Progreso, Apdo. Postal 73, Cordemex, Merida, Yucatan 97310, Mexico
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Hazra R, Bera N, Layek S, Sarkar N. Efficiency of Encapsulation of Thioflavin T (ThT) into Polar and Nonpolar Environments of Different Bile Salt Aggregates: A Femtosecond Fluorescence Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:16272-16282. [PMID: 39042864 DOI: 10.1021/acs.langmuir.4c01460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
The binding of Thioflavin T (ThT) with various bile salts, a potential host molecule, has been analyzed by steady-state and time-resolved fluorescence spectroscopy. A comparative study has been executed to investigate the influence of confinement of different bile salts, namely, sodium cholate (NaCh), sodium taurocholate (NaTC), and sodium deoxycholate (NaDC) on binding and excited state torsional motion of ThT molecules. The changes in absorption and emission properties of probe molecules were found to be sensitive to increasing bile salt concentration in aqueous 0.2 (M) NaCl solutions. The photophysics of ThT mainly depends on hydrophobicity, morphology, and size of bile salt aggregates in solution. In the presence of bile salts, the emission intensity and emission lifetime of ThT increase significantly, indicating encapsulation of dye. Moreover, we have also investigated the effect of the ionic strength of the medium by sodium chloride (NaCl) on the spectroscopic properties of ThT in the restricted surroundings of aqueous bile salts. It is observed that the fluorescence lifetime of ThT in bile salts increases significantly in the presence of NaCl. The encapsulation efficiency of ThT in bile salt aggregates has been assessed by iodide (I-) as an external ionic quencher. We found that NaDC aggregates are more efficient in the modulation of photophysical properties of ThT and also provide better protection efficiency to decrease the nonradiative deactivation processes.
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Affiliation(s)
- Ritwik Hazra
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Nanigopal Bera
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Souvik Layek
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
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Kämäräinen T, Kadota K, Arima-Osonoi H, Uchiyama H, Tozuka Y. Tailoring the Self-Assembly of Steviol Glycoside Nanocarriers with Steroidal Amphiphiles. ACS Biomater Sci Eng 2023; 9:5747-5760. [PMID: 37748027 DOI: 10.1021/acsbiomaterials.3c01264] [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: 09/27/2023]
Abstract
Bile salts are biosurfactants that can induce structure transformations in supramolecular nanoassemblies with conventional surfactants owing to their unique, planar amphiphilic character and the rigidity of their hydrophobic steroid skeleton. However, structural information about the association of bile salts and amphiphilic glycosides is lacking. In this work, we investigated the micelle structure of two anionic di- and trihydroxy bile salts [sodium deoxycholate (SDC) and sodium cholate (SC)] and a conventional anionic surfactant [sodium dodecyl sulfate (SDS)] in mixtures with a nonionic steviol glycoside [α-glucosyl stevia (Stevia-G)] and studied their potential as a nanocarrier system for two poorly water-soluble drugs (clotrimazole and ketoconazole). Decreased critical micelle concentrations determined from surface tension measurements demonstrate synergistic interactions between Stevia-G and SDS/SDC/SC in a decreasing order. Small-angle X-ray and neutron scattering, interpreted by a core-shell ellipsoid model, indicate that SDS and bile salts act differently on the mixed micelle structure. Compared with SDS/Stevia-G, bile salt/Stevia-G had a core-shell structure more similar to that of pure Stevia-G micelles. SDC and SDS had an increasing and decreasing influence, respectively, on the available molecular surface area in mixtures with Stevia-G on the micelle core but a similar influence on the micelle shell solvation number relative to that of their pure micellar structures. The number of bile salt hydroxyl groups was influential in determining the micelle stoichiometry: an increasing number of hydroxyl groups corresponded to decreasing bile salt aggregation numbers and a smaller hydrophobic micellar core. The core volume was the most important structural factor in explaining the drug solubilization capacity of the nanocarrier systems. Therefore, bile salt-steviol glycoside mixed micellar assemblies exhibit structure control mechanisms allowing the fine-tuning of their interior hydrophobic domains important for nanocarrier applications toward solubilization of poorly water-soluble drugs.
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Affiliation(s)
- Tero Kämäräinen
- Department of Formulation Design and Pharmaceutical Technology, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Kazunori Kadota
- Department of Formulation Design and Pharmaceutical Technology, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Hiroshi Arima-Osonoi
- Neutron Science and Technology Center, Comprehensive Research Organization for Science and Society, Tokai, Ibaraki 319-1106, Japan
| | - Hiromasa Uchiyama
- Department of Formulation Design and Pharmaceutical Technology, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
| | - Yuichi Tozuka
- Department of Formulation Design and Pharmaceutical Technology, Osaka Medical and Pharmaceutical University, 4-20-1 Nasahara, Takatsuki, Osaka 569-1094, Japan
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Pilipović A, Vapa I, Tepavčević V, Puača G, Poša M. Ternary Mixed Micelle Hexadecyltrimethylammonium Bromide-Dodecyltrimethylammonium Bromide-Sodium Deoxycholate: Gibbs Free Energy of Mixing and Excess Gibbs Energy of Mixing. Molecules 2023; 28:6722. [PMID: 37764498 PMCID: PMC10535795 DOI: 10.3390/molecules28186722] [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: 08/27/2023] [Revised: 09/11/2023] [Accepted: 09/18/2023] [Indexed: 09/29/2023] Open
Abstract
Pharmaceutical, food, and cosmetic formulations often contain binary or ternary surfactant mixtures with synergistic interactions amongst micellar building blocks. Here, a ternary mixture of the surfactants hexadecyltrimethylammonium bromide, dodecyltrimethylammonium bromide, and sodium deoxycholate is examined to see if the molar fractions of the surfactants in the ternary mixed micellar pseudophase are determined by the interaction coefficients between various pairs of the surfactants or by their propensity to self-associate. Critical micelle concentrations (CMC) of the analyzed ternary mixtures are determined experimentally (spectrofluorimetrically using pyrene as the probe molecule). Thermodynamic parameters of ternary mixtures are calculated from CMC values using the Regular Solution protocol. The tendency for monocomponent surfactants to self-associate (lower value of CMC) determines the molar fractions of surfactant in the mixed micelle if there is no issue with the packing of the micelle building units of the ternary mixed micelle. If a more hydrophobic surfactant is incorporated into the mixed micelle, the system (an aqueous solution of surfactants) is then the most thermodynamically stabilized.
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Affiliation(s)
- Ana Pilipović
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljka 3, 21000 Novi Sad, Serbia; (I.V.); (V.T.); (G.P.)
| | | | | | | | - Mihalj Poša
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljka 3, 21000 Novi Sad, Serbia; (I.V.); (V.T.); (G.P.)
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Poša M. Self-Association of the Anion of 7-Oxodeoxycholic Acid (Bile Salt): How Secondary Micelles Are Formed. Int J Mol Sci 2023; 24:11853. [PMID: 37511620 PMCID: PMC10380805 DOI: 10.3390/ijms241411853] [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: 06/30/2023] [Revised: 07/21/2023] [Accepted: 07/22/2023] [Indexed: 07/30/2023] Open
Abstract
Bile acid anions are steroidal biosurfactants that form primary micelles due to the hydrophobic effect. At higher concentrations of some bile acid anions, secondary micelles are formed; hydrogen bonds connect primary micelles. Monoketo derivatives of cholic acid, which have reduced membrane toxicity, are important for biopharmaceutical examinations. The main goal is to explain why the processes of formation of primary and secondary micelles are separated from each other, i.e., why secondary micelles do not form parallel to primary micelles. The association of the anion of 7-oxodeoxycholic acid (a monoketo derivative of cholic acid) is observed through the dependence of the spin-lattice relaxation time on total surfactant concentration T1 = f(CT). On the function T1 = f(CT), two sharp jumps of the spin-lattice relaxation time are obtained, i.e., two critical micellar concentrations (CMC). The aggregation number of the micelle at 50 mM total concentration of 7-oxodeoxycholic acid anions in the aqueous solution is 4.2 ± 0.3, while at the total concentration of 100 mM the aggregation number is 9.0 ± 0.9. The aggregation number of the micelle changes abruptly in the concentration interval of 80-90 mM (the aggregation number determined using fluorescence measurements). By applying Le Chatelier's principle, the new mechanism of formation of secondary micelles is given, and the decoupling of the process of formation of primary and secondary micelles at lower concentrations of monomers (around the first critical micellar concentration) and the coupling of the same processes at higher equilibrium concentrations of monomers (around the second critical micellar concentration) is explained. Stereochemically and thermodynamically, a direct mutual association of primary micelles is less likely, but monomeric units are more likely to be attached to primary micelles, i.e., 7-oxodeoxycholic acid anions.
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Affiliation(s)
- Mihalj Poša
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljka 3, 21000 Novi Sad, Serbia
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7
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Zong L, Wang Y, Song S, Zhang H, Mu S, Liu W, Feng Y, Wang S, Tu Z, Yuan Q, Li L, Pu X. Formulation and Evaluation on Synergetic Anti-Hepatoma Effect of a Chemically Stable and Release-Controlled Nanoself-Assembly with Natural Monomers. Int J Nanomedicine 2023; 18:3407-3428. [PMID: 37377983 PMCID: PMC10292624 DOI: 10.2147/ijn.s408416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Introduction Hepatoma is the leading cause of death among liver diseases worldwide. Modern pharmacological studies suggest that some natural monomeric compounds have a significant effect on inhibiting tumor growth. However, poor stability and solubility, and side effects are the main factors limiting the clinical application of natural monomeric compounds. Methods In this paper, drug-co-loaded nanoself-assemblies were selected as a delivery system to improve the chemical stability and solubility of Tanshinone II A and Glycyrrhetinic acid, and to produce a synergetic anti-hepatoma effect. Results The study suggested that the drug co-loaded nanoself-assemblies showed high drug loading capacity, good physical and chemical stability, and controlled release. In vitro cell experiments verified that the drug-co-loaded nanoself-assemblies could increase the cellular uptake and cell inhibitory activity. In vivo studies verified that the drug co-loaded nanoself-assemblies could prolong the MRT0-∞, increase accumulation in tumor and liver tissues, and show strong synergistic anti-tumor effect and good bio-safety in H22 tumor-bearing mice. Conclusion This work indicates that natural monomeric compounds co-loaded nanoself-assemblies would be a potential strategy for the treatment of hepatoma.
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Affiliation(s)
- Lanlan Zong
- School of Pharmacy and Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
| | - Yanling Wang
- School of Pharmacy and Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
| | - Shiyu Song
- School of Pharmacy and Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
| | - Huiqi Zhang
- School of Pharmacy and Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
| | - Shengcai Mu
- School of Pharmacy and Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
| | - Wenshang Liu
- School of Pharmacy and Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
| | - Yu Feng
- School of Pharmacy and Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
| | - Shumin Wang
- School of Pharmacy and Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
| | - Ziwei Tu
- School of Pharmacy and Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
| | - Qi Yuan
- School of Pharmacy and Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
| | - Luhui Li
- Medical school, Henan Technical Institute, Kaifeng, Henan, 475004, People’s Republic of China
| | - Xiaohui Pu
- School of Pharmacy and Henan Province Engineering Research Center of High Value Utilization to Natural Medical Resource in Yellow River Basin, Henan University, Kaifeng, Henan, 475004, People’s Republic of China
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Farkaš Agatić Z, Popović K, Kumar D, Škorić D, Poša M. Regular solution theory regarding sodium cholate and hexadecyltrimethylammonium bromide or dodecyltrimethylammonium bromide binary mixed micelles. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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9
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Symmetry (Asymmetry) of the Molar Excess Gibbs Free Energy Function of the Binary Mixed Micelles of Bile Acid Anion and Classical Cationic Surfactant: Influence of Sterically Shielded and Sterically Unshielded Polar Groups of the Steroid Skeleton. Symmetry (Basel) 2022. [DOI: 10.3390/sym14112337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Binary mixtures of surfactants build a binary mixed micelle in which the ratio of surfactants usually differs from the initial ratio of surfactants in their binary mixture. The thermodynamic stabilization of the binary mixed micellar pseudophase about the hypothetical ideal state (intermolecular interactions between the different particles and the conformational states of the particles are identical to those of monocomponent states) is described by the molar excess Gibbs free energy (gE). The dependence of gE on the molar fraction of surfactant i (xi) from the binary mixed micelle can be described by a symmetric function (symmetry is described to the line parallel to the y-axis and passes through xi = 0.5) or by an asymmetric function. Theoretical analysis (canonical partition function, conformational analysis) examines how the presence of different polar functional groups, some of which are sterically shielded from the steroid skeleton of bile salts (surfactant), affect the symmetry of the function gE of the binary mixed micelle of the cholic acid anion (bile salts) and classic cationic surfactant (hydrophobic tail and polar head). Suppose the steroid skeleton of the bile salt contains non-sterically shielded polar groups (or the temperature is relatively high). In that case, gE is a symmetric function. At the same time, if the steroid skeleton also contains sterically shielded polar groups, then the gE function is asymmetric.
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Poša M, Škorić D, Pilipović A. Binary mixture (1:1) of Triton X100 and Propranolol hydrochloride in an aqueous solution of NaCl: whether mixed micelles are formed, possible clarification in 1H DOSY NMR experiment. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Massa M, Compari C, Fisicaro E. On the mechanism of the cholesterol lowering ability of soluble dietary fibers: Interaction of some bile salts with pectin, alginate, and chitosan studied by isothermal titration calorimetry. Front Nutr 2022; 9:968847. [PMID: 36245485 PMCID: PMC9558102 DOI: 10.3389/fnut.2022.968847] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 09/15/2022] [Indexed: 11/29/2022] Open
Abstract
Reducing high blood cholesterol is an important strategy to decrease the chances of a cardiovascular disease occurrence, the main cause of mortality in western developed countries. Therefore, the search for an alternative therapeutic or preventive approach being natural, biocompatible, and not toxic is still more relevant than ever. This need is particularly felt in Pediatrics for treating childhood hypercholesterolemia, due to statins interference in the production of steroid hormones in prepuberal children. Notwithstanding the general acceptance of the healthy role of the fibers in the diet, the mechanism underlying the cholesterol-lowering ability of soluble fibers is still under discussion. Therefore, we started a systematic study of the binding ability of some soluble dietary fibers (SDF) originated from different natural sources toward selected bile salts (BS) by isothermal titration calorimetry (ITC). Here we report the results of our ITC studies on the interaction of alginate, pectin and chitosan with sodium cholate (NaC), sodium deoxycholate (NaDC), sodium taurocholate (NaTC) and sodium taurodeoxycholate (NaTDC). Thermodynamic data on the micelle formation process of the above bile salts, as a premise to the study of their binding ability to the SDF, are also reported. Alginate does not show specific binding interaction with BS, while pectin shows a strong exothermic bond with NaDC in monomeric form. Chitosan, positively charged and soluble only at low pH, shows strong exothermic interactions with NaTC and NaTDC (soluble at pH = 3 in acetate buffer) with precipitate formation. For NaTC, the exothermic peak starts at about 5 mM. At this concentration NaTC bound on the fiber reaches locally the cmc value and micelles start forming on the fiber inducing its conformational change. For NaTDC the same process occurs at much lower concentrations, due to lower cmc, and with a greater quantity of heat involved. The first set of results here presented shows that for some SDF the binding of BS could be an important mechanism in cholesterol lowering but not the only one. The information here presented could be a starting point for the design of optimized functional foods with high cholesterol lowering ability.
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Affiliation(s)
- Michele Massa
- Department of Maternal Infantile and Urological Sciences, Sapienza University of Rome, Rome, Italy
| | | | - Emilia Fisicaro
- Department of Food and Drug, University of Parma, Parma, Italy
- *Correspondence: Emilia Fisicaro,
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Poša M, Pilipović A, Popović K, Kumar D. Thermodynamics of trimethyltetradecylammonium bromide – Sodium deoxycholate binary mixed micelle formation in aqueous solution: Regular solution theory with mutual compensation of excess configurational and excess conformational entropy. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119473] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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13
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Jana R, Ahmed SA, Seth D. Interaction between Cucurbit[7]uril and Bile Salts: An Isothermal Titration Calorimetry Study. ChemistrySelect 2022. [DOI: 10.1002/slct.202103800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rabindranath Jana
- Department of Chemistry Indian Institute of Technology Patna Patna 801103 Bihar India
| | - Sayeed Ashique Ahmed
- Department of Chemistry Indian Institute of Technology Patna Patna 801103 Bihar India
| | - Debabrata Seth
- Department of Chemistry Indian Institute of Technology Patna Patna 801103 Bihar India
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14
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Li P, Malveau C, Zhu XX, Wuest JD. Using Nuclear Magnetic Resonance Spectroscopy to Probe Hydrogels Formed by Sodium Deoxycholate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:5111-5118. [PMID: 34730971 DOI: 10.1021/acs.langmuir.1c02175] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Hydrogels of bile acids and their salts are promising materials for drug delivery, cellular immobilization, and other applications. However, these hydrogels are poorly understood at the molecular level, and further study is needed to allow improved materials to be created by design. We have used NMR spectroscopy to probe hydrogels formed from mixtures of formic acid and sodium deoxycholate (NaDC), a common bile acid salt. By assaying the ratio of deoxycholate molecules that are immobilized as part of the fibrillar network of the hydrogels and those that can diffuse, we have found that 65% remain free under typical conditions. The network appears to be composed of both the acid and salt forms of deoxycholate, possibly because a degree of charge inhibits excessive aggregation and precipitation of the fibrils. Spin-spin relaxation times provided a molecular-level estimate of the temperature of gel-sol transition (42 °C), which is virtually the same as the value determined by analyzing macroscopic parameters. Saturation transfer difference (STD) NMR spectroscopy established that formic acid, which is present mainly as formate, is not immobilized as part of the gelating network. In contrast, HDO interacts with the network, which presumably has a surface with exposed hydrophilic groups that form hydrogen bonds with water. Moreover, the STD NMR experiments revealed that the network is a dynamic entity, with molecules of deoxycholate associating and dissociating reversibly. This exchange appears to occur preferentially by contact of the hydrophobic edges or faces of free molecules of deoxycholate with those of molecules immobilized as components of the network. In addition, DOSY experiments revealed that gelation has little effect on the diffusion of free NaDC and HDO.
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Affiliation(s)
- Puzhen Li
- Département de Chimie, Université de Montréal, Montréal, Québec H2V 0B3 Canada
| | - Cédric Malveau
- Département de Chimie, Université de Montréal, Montréal, Québec H2V 0B3 Canada
| | - X X Zhu
- Département de Chimie, Université de Montréal, Montréal, Québec H2V 0B3 Canada
| | - James D Wuest
- Département de Chimie, Université de Montréal, Montréal, Québec H2V 0B3 Canada
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15
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Endres S, Karaev E, Hanio S, Schlauersbach J, Kraft C, Rasmussen T, Luxenhofer R, Böttcher B, Meinel L, Pöppler AC. Concentration and composition dependent aggregation of Pluronic- and Poly-(2-oxazolin)-Efavirenz formulations in biorelevant media. J Colloid Interface Sci 2022; 606:1179-1192. [PMID: 34487937 DOI: 10.1016/j.jcis.2021.08.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 07/26/2021] [Accepted: 08/07/2021] [Indexed: 01/03/2023]
Abstract
Many drugs and drug candidates are poorly water-soluble. Intestinal fluids play an important role in their solubilization. However, the interactions of intestinal fluids with polymer excipients, drugs and their formulations are not fully understood. Here, diffusion ordered spectroscopy (DOSY) and nuclear Overhauser effect spectroscopy (NOESY), complemented by cryo-TEM were employed to address this. Efavirenz (EFV) as model drug, the triblock copolymers Pluronic® F-127 (PF127) and poly(2-oxazoline) based pMeOx-b-pPrOzi-b-pMeOx (pOx/pOzi) and their respective formulations were studied in simulated fed-state intestinal fluid (FeSSIF). For the individual polymers, the bile interfering nature of PF127 was confirmed and pure pOx/pOzi was newly classified as non-interfering. A different and more complex behaviour was however observed if EFV was involved. PF127/EFV formulations in FeSSIF showed concentration dependent aggregation with separate colloids at low formulation concentrations, a merging of individual particles at the solubility limit of EFV in FeSSIF and joint aggregates above this concentration. In the case of pOx/pOzi/EFV formulations, coincident diffusion coefficients for pOx/pOzi, lipids and EFV indicate joint aggregates across the studied concentration range. This demonstrates that separate evaluation of polymers and drugs in biorelevant media is not sufficient and their mixtures need to be studied to learn about concentration and composition dependent behaviour.
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Affiliation(s)
- Sebastian Endres
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, Würzburg 97074, Germany
| | - Emil Karaev
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, Würzburg 97074, Germany
| | - Simon Hanio
- Institute of Pharmacy and Food Chemistry, University of Würzburg, Am Hubland, Würzburg 97074, Germany
| | - Jonas Schlauersbach
- Institute of Pharmacy and Food Chemistry, University of Würzburg, Am Hubland, Würzburg 97074, Germany
| | - Christian Kraft
- Rudolf Virchow Center, Center for Integrative and Translational Bioimaging, University of Würzburg, Würzburg 97080, Germany
| | - Tim Rasmussen
- Rudolf Virchow Center, Center for Integrative and Translational Bioimaging, University of Würzburg, Würzburg 97080, Germany; Biocenter, University of Würzburg, Würzburg 97074, Germany
| | - Robert Luxenhofer
- Soft Matter Chemistry, Department of Chemistry, Helsinki University, Helsinki 00014, Finland
| | - Bettina Böttcher
- Rudolf Virchow Center, Center for Integrative and Translational Bioimaging, University of Würzburg, Würzburg 97080, Germany; Biocenter, University of Würzburg, Würzburg 97074, Germany
| | - Lorenz Meinel
- Institute of Pharmacy and Food Chemistry, University of Würzburg, Am Hubland, Würzburg 97074, Germany; Helmholtz Institute for RNA-based Infection Biology (HIRI), Wuerzburg DE-97070, Germany
| | - Ann-Christin Pöppler
- Institute of Organic Chemistry, University of Würzburg, Am Hubland, Würzburg 97074, Germany.
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16
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Importance of Conjugation of the Bile Salt on the Mechanism of Lipolysis. Molecules 2021; 26:molecules26195764. [PMID: 34641309 PMCID: PMC8510408 DOI: 10.3390/molecules26195764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/08/2021] [Accepted: 09/13/2021] [Indexed: 12/17/2022] Open
Abstract
We aim to advance the discussion on the significance of the conjugation of bile salts (BS) in our organism. We hypothesize that conjugation influences the rate of lipolysis. Since the rate of lipolysis is a compound parameter, we compare the effect of conjugation on four surface parameters, which contribute to the rate. Since deconjugation is due to gut microbiota, we hypothesize that microbiota may affect the rate of lipolysis. A meta-analysis of literature data of critical micelle concentration, β, aggregation number, and molar solubilization ratio has been performed for the first time. In addition, critical micelle concentration (CMC), interfacial tension, and lipolysis rate measurements were performed. It was found that the unconjugated BS in mixed micelles increases the antagonism between the BS, therefore, increasing the CMC. This correlated with the effect of unconjugated BS on the solubilization capacity of mixed micelles. The collected literature information indicates that the role of the BS and its conjugation in our organism is a key factor influencing the functioning of our organism, where too high levels of unconjugated BS may lead to malabsorption of fat-soluble nutrients. The experimental lipolysis results irrevocably showed that conjugation is a significant factor influencing the rate.
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17
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Yuan C, Chen DJ, Ye QX, Xiao K, Hao LS, Nan YQ. CO2/N2-switchable sol–gel transition based on NaDC/NaCl solution: Experiments and molecular dynamics simulations. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115193] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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18
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Poša M, Tepavčević V, Grbović L, Mikulić M, Pavlović K. Hydrophobicity and self‐association (micellization) of bile salts with a lactone or lactam group in a steroid skeleton. J PHYS ORG CHEM 2021. [DOI: 10.1002/poc.4133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mihalj Poša
- Department of Pharmacy, Faculty of Medicine University of Novi Sad Novi Sad Serbia
| | - Vesna Tepavčević
- Department of Pharmacy, Faculty of Medicine University of Novi Sad Novi Sad Serbia
| | - Ljubica Grbović
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences University of Novi Sad Novi Sad Serbia
| | - Mira Mikulić
- Department of Pharmacy, Faculty of Medicine University of Novi Sad Novi Sad Serbia
| | - Ksenija Pavlović
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences University of Novi Sad Novi Sad Serbia
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19
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Pabois O, Ziolek RM, Lorenz CD, Prévost S, Mahmoudi N, Skoda MWA, Welbourn RJL, Valero M, Harvey RD, Grundy MML, Wilde PJ, Grillo I, Gerelli Y, Dreiss CA. Morphology of bile salts micelles and mixed micelles with lipolysis products, from scattering techniques and atomistic simulations. J Colloid Interface Sci 2020; 587:522-537. [PMID: 33189321 DOI: 10.1016/j.jcis.2020.10.101] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/23/2020] [Accepted: 10/25/2020] [Indexed: 12/17/2022]
Abstract
HYPOTHESES Bile salts (BS) are biosurfactants released into the small intestine, which play key and contrasting roles in lipid digestion: they adsorb at interfaces and promote the adsorption of digestive enzymes onto fat droplets, while they also remove lipolysis products from that interface, solubilising them into mixed micelles. Small architectural variations on their chemical structure, specifically their bile acid moiety, are hypothesised to underlie these conflicting functionalities, which should be reflected in different aggregation and solubilisation behaviour. EXPERIMENTS The micellisation of two BS, sodium taurocholate (NaTC) and sodium taurodeoxycholate (NaTDC), which differ by one hydroxyl group on the bile acid moiety, was assessed by pyrene fluorescence spectroscopy, and the morphology of aggregates formed in the absence and presence of fatty acids (FA) and monoacylglycerols (MAG) - typical lipolysis products - was resolved by small-angle X-ray/neutron scattering (SAXS, SANS) and molecular dynamics simulations. The solubilisation by BS of triacylglycerol-incorporating liposomes - mimicking ingested lipids - was studied by neutron reflectometry and SANS. FINDINGS Our results demonstrate that BS micelles exhibit an ellipsoidal shape. NaTDC displays a lower critical micellar concentration and forms larger and more spherical aggregates than NaTC. Similar observations were made for BS micelles mixed with FA and MAG. Structural studies with liposomes show that the addition of BS induces their solubilisation into mixed micelles, with NaTDC displaying a higher solubilising capacity.
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Affiliation(s)
- Olivia Pabois
- Institut Laue-Langevin, Grenoble 38000, France; Institute of Pharmaceutical Science, King's College London, London SE1 9NH, United Kingdom.
| | - Robert M Ziolek
- Department of Physics, King's College London, London WC2R 2LS, United Kingdom.
| | - Christian D Lorenz
- Department of Physics, King's College London, London WC2R 2LS, United Kingdom.
| | | | - Najet Mahmoudi
- ISIS Neutron & Muon Source, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom.
| | - Maximilian W A Skoda
- ISIS Neutron & Muon Source, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom.
| | - Rebecca J L Welbourn
- ISIS Neutron & Muon Source, STFC Rutherford Appleton Laboratory, Didcot OX11 0QX, United Kingdom.
| | - Margarita Valero
- Department of Physical Chemistry, University of Salamanca, Salamanca 37007, Spain.
| | - Richard D Harvey
- Department of Pharmaceutical Chemistry, University of Vienna, Vienna A-1090, Austria.
| | | | - Peter J Wilde
- Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, United Kingdom.
| | | | - Yuri Gerelli
- Institut Laue-Langevin, Grenoble 38000, France; Department of Life and Environmental Sciences, Polytechnic University of Marche, Ancona 60131, Italy.
| | - Cécile A Dreiss
- Institute of Pharmaceutical Science, King's College London, London SE1 9NH, United Kingdom.
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20
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Parrow A, Larsson P, Augustijns P, Bergström CAS. Molecular Dynamics Simulations on Interindividual Variability of Intestinal Fluids: Impact on Drug Solubilization. Mol Pharm 2020; 17:3837-3844. [PMID: 32787279 PMCID: PMC7704030 DOI: 10.1021/acs.molpharmaceut.0c00588] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
![]()
Efficient delivery
of oral drugs is dependent on their solubility
in human intestinal fluid, a complex and dynamic fluid that contains
colloidal structures composed of small molecules. These structures
solubilize poorly water-soluble compounds, increasing their apparent
solubility, and possibly their bioavailability. In this study, we
conducted coarse-grained molecular dynamics simulations with data
from duodenal fluid samples previously acquired from five healthy
volunteers. In these simulations, we observed the self-assembly of
mixed micelles of bile salts, phospholipids, and free fatty acids.
The micelles were ellipsoids with a size range of 4–7 nm. Next,
we investigated micelle affinities of three model drugs. The affinities
in our simulation showed the same trend as literature values for the
solubility enhancement of drugs in human intestinal fluids. This type
of simulations is useful for studies of events and interactions taking
place in the small intestinal fluid.
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Affiliation(s)
- Albin Parrow
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Center, P.O. Box 580, SE-751 23 Uppsala, Sweden
| | - Per Larsson
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Center, P.O. Box 580, SE-751 23 Uppsala, Sweden.,The Swedish Drug Delivery Center, Department of Pharmacy, Uppsala University, Uppsala Biomedical Center, P.O. Box 580, SE-751 23 Uppsala, Sweden
| | - Patrick Augustijns
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, O&N II Gasthuisberg, Herestraat 49, Box 921, 3000 Leuven, Belgium
| | - Christel A S Bergström
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Center, P.O. Box 580, SE-751 23 Uppsala, Sweden.,The Swedish Drug Delivery Center, Department of Pharmacy, Uppsala University, Uppsala Biomedical Center, P.O. Box 580, SE-751 23 Uppsala, Sweden
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21
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Poša M, Bjedov S, Tepavčević V, Mikulić M, Sakač M. Physicochemical characterization of novel 3-carboxymethyl-bile salts, as permeability and solubility enhancers. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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22
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Tuncer E, Bayramoglu B. Characterization of the self-assembly and size dependent structural properties of dietary mixed micelles by molecular dynamics simulations. Biophys Chem 2019; 248:16-27. [PMID: 30850307 DOI: 10.1016/j.bpc.2019.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 01/27/2019] [Accepted: 02/01/2019] [Indexed: 01/05/2023]
Abstract
The bile salts and phospholipids are secreted by the gallbladder to form dietary mixed micelles in which the solvation of poorly absorbed lipophilic drugs and nutraceuticals take place. A comprehensive understanding of the micellization and structure of the mixed micelles are crucial to design effective delivery systems for such substances. In this study, the evolution of the dietary mixed micelle formation under physiologically relevant concentrations and the dependence of structural properties on micelle size were investigated through coarse-grained molecular dynamics simulations. The MARTINI force field was used to model cholate and POPC as the representative bile salt and phospholipid, respectively. The micellization behavior was similar under both fasted and fed state concentrations. Total lipids concentration and the micelle size did not affect the internal structure of the micelles. All the micelles were slightly ellipsoidal in shape independent of their size. The extent of deviation from spherical geometry was found to depend on the micellar POPC/cholate ratio. We also found that the surface and core packing density of the micelles increased with micelle size. The former resulted in more perpendicular alignments of cholates with respect to the surface, while the latter resulted in an improved alignment of POPC tails with the radial direction and more uniform core density.
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Affiliation(s)
- Esra Tuncer
- İzmir Institute of Technology, Food Engineering Department, Gulbahce Campus,Urla, Izmir 35430, Turkey.
| | - Beste Bayramoglu
- İzmir Institute of Technology, Food Engineering Department, Gulbahce Campus,Urla, Izmir 35430, Turkey.
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23
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Li X, Li Q, Lei N, Chen X. Luminescent Sodium Deoxycholate Ionogel Induced by Eu 3+ in Ethylammonium Nitrate. ACS OMEGA 2019; 4:2437-2444. [PMID: 31459482 PMCID: PMC6648304 DOI: 10.1021/acsomega.8b03555] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 01/17/2019] [Indexed: 06/10/2023]
Abstract
Hydrogels based on bile salts and lanthanide ions have been reported for their easy gelation. However, the weak mechanical properties and water quenching to luminescence of lanthanide ions limit their applications in practice. Hence, a supramolecular ionogel has been prepared here through simply mixing of sodium deoxycholate and europium nitrate in a protic ionic liquid, ethylammonium nitrate (EAN). The prepared ionogel was characterized by scanning electron microscopy, X-ray energy-dispersive spectroscopy, Fourier transform infrared spectroscopy, X-ray powder diffraction, fluorescence spectroscopy, and rheological measurements. Such an ionogel resulted synergistically from metal coordination and hydrogen bonding. The effect of the solvent structure on gel properties was also explored by comparison with those formed in alkylammonium nitrates with longer chains. EAN was found to behave more effectively both as a solvent and a bridge to enhance the ionogel mechanical strength. The ionogels also exhibited better fluorescent properties than those of the corresponding hydrogels. The obtained results should expand the applications of lanthanide-containing luminescent soft materials in nonaqueous media. It is expected to apply in the fields of solid electrolytes, biosensors, and optics response.
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Affiliation(s)
- Xueyuan Li
- Key
Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
| | - Qintang Li
- State
Key Laboratory of Environmental Friendly Energy Materials, School
of Materials Science and Engineering, Southwest
University of Science and Technology, Mianyang 621010, China
| | - Nana Lei
- Key
Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
| | - Xiao Chen
- Key
Laboratory of Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
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24
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Poša M, Pilipović A, Torović L, Hogervorst JC. Co-solubilisation of a binary mixture of isoflavones in a water micellar solution of sodium cholate or cetyltrimethylammonium bromide: Influence of micelle structure. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2018.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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25
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Pavlović N, Goločorbin-Kon S, Ðanić M, Stanimirov B, Al-Salami H, Stankov K, Mikov M. Bile Acids and Their Derivatives as Potential Modifiers of Drug Release and Pharmacokinetic Profiles. Front Pharmacol 2018; 9:1283. [PMID: 30467479 DOI: 10.3389/fphar.2018.01283/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 10/18/2018] [Indexed: 05/27/2023] Open
Abstract
Bile acids have received considerable interest in the drug delivery research due to their peculiar physicochemical properties and biocompatibility. The main advantage of bile acids as drug absorption enhancers is their ability to act as both drug solubilizing and permeation-modifying agents. Therefore, bile acids may improve bioavailability of drugs whose absorption-limiting factors include either poor aqueous solubility or low membrane permeability. Besides, bile acids may withstand the gastrointestinal impediments and aid in the transporter-mediated absorption of physically complexed or chemically conjugated drug molecules. These biomolecules may increase the drug bioavailability also at submicellar levels by increasing the solubility and dissolution rate of non-polar drugs or through the partition into the membrane and increase of membrane fluidity and permeability. Most bile acid-induced effects are mediated by the nuclear receptors that activate transcriptional networks, which then affect the expression of a number of target genes, including those for membrane transport proteins, affecting the bioavailability of a number of drugs. Besides micellar solubilization, there are many other types of interactions between bile acids and drug molecules, which can influence the drug transport across the biological membranes. Most common drug-bile salt interaction is ion-pairing and the formed complexes may have either higher or lower polarity compared to the drug molecule itself. Furthermore, the hydroxyl and carboxyl groups of bile acids can be utilized for the covalent conjugation of drugs, which changes their physicochemical and pharmacokinetic properties. Bile acids can be utilized in the formulation of conventional dosage forms, but also of novel micellar, vesicular and polymer-based therapeutic systems. The availability of bile acids, along with their simple derivatization procedures, turn them into attractive building blocks for the design of novel pharmaceutical formulations and systems for the delivery of drugs, biomolecules and vaccines. Although toxic properties of hydrophobic bile acids have been described, their side effects are mostly produced when present in supraphysiological concentrations. Besides, minor structural modifications of natural bile acids may lead to the creation of bile acid derivatives with the reduced toxicity and preserved absorption-enhancing activity.
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Affiliation(s)
- Nebojša Pavlović
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | | | - Maja Ðanić
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Bojan Stanimirov
- Department of Biochemistry, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Hani Al-Salami
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Karmen Stankov
- Department of Biochemistry, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Momir Mikov
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
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26
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Pavlović N, Goločorbin-Kon S, Ðanić M, Stanimirov B, Al-Salami H, Stankov K, Mikov M. Bile Acids and Their Derivatives as Potential Modifiers of Drug Release and Pharmacokinetic Profiles. Front Pharmacol 2018; 9:1283. [PMID: 30467479 PMCID: PMC6237018 DOI: 10.3389/fphar.2018.01283] [Citation(s) in RCA: 144] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 10/18/2018] [Indexed: 12/16/2022] Open
Abstract
Bile acids have received considerable interest in the drug delivery research due to their peculiar physicochemical properties and biocompatibility. The main advantage of bile acids as drug absorption enhancers is their ability to act as both drug solubilizing and permeation-modifying agents. Therefore, bile acids may improve bioavailability of drugs whose absorption-limiting factors include either poor aqueous solubility or low membrane permeability. Besides, bile acids may withstand the gastrointestinal impediments and aid in the transporter-mediated absorption of physically complexed or chemically conjugated drug molecules. These biomolecules may increase the drug bioavailability also at submicellar levels by increasing the solubility and dissolution rate of non-polar drugs or through the partition into the membrane and increase of membrane fluidity and permeability. Most bile acid-induced effects are mediated by the nuclear receptors that activate transcriptional networks, which then affect the expression of a number of target genes, including those for membrane transport proteins, affecting the bioavailability of a number of drugs. Besides micellar solubilization, there are many other types of interactions between bile acids and drug molecules, which can influence the drug transport across the biological membranes. Most common drug-bile salt interaction is ion-pairing and the formed complexes may have either higher or lower polarity compared to the drug molecule itself. Furthermore, the hydroxyl and carboxyl groups of bile acids can be utilized for the covalent conjugation of drugs, which changes their physicochemical and pharmacokinetic properties. Bile acids can be utilized in the formulation of conventional dosage forms, but also of novel micellar, vesicular and polymer-based therapeutic systems. The availability of bile acids, along with their simple derivatization procedures, turn them into attractive building blocks for the design of novel pharmaceutical formulations and systems for the delivery of drugs, biomolecules and vaccines. Although toxic properties of hydrophobic bile acids have been described, their side effects are mostly produced when present in supraphysiological concentrations. Besides, minor structural modifications of natural bile acids may lead to the creation of bile acid derivatives with the reduced toxicity and preserved absorption-enhancing activity.
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Affiliation(s)
- Nebojša Pavlović
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | | | - Maja Ðanić
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Bojan Stanimirov
- Department of Biochemistry, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Hani Al-Salami
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Karmen Stankov
- Department of Biochemistry, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Momir Mikov
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
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27
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Zhang L, Chai X, Sun P, Zhu Q, Zhang X, Liu M. Characterization of the aggregated pattern of CHAPS using solvent paramagnetic relaxation enhancements. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.07.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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28
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Meier AR, Yehl JB, Eckenroad KW, Manley GA, Strein TG, Rovnyak D. Stepwise Aggregation of Cholate and Deoxycholate Dictates the Formation and Loss of Surface-Available Chirally Selective Binding Sites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6489-6501. [PMID: 29733655 DOI: 10.1021/acs.langmuir.8b00467] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Bile salts are facially amphiphilic, naturally occurring chemicals that aggregate to perform numerous biochemical processes. Because of their unique intermolecular properties, bile salts have also been employed as functional materials in medicine and separation science (e.g., drug delivery, chiral solubilization, purification of single-walled carbon nanotubes). Bile micelle formation is structurally complex, and it remains a topic of considerable study. Here, the exposed functionalities on the surface of cholate and deoxycholate micelles are shown to vary from one another and with the micelle aggregation state. Collectively, data from NMR and capillary electrophoresis reveal preliminary, primary, and secondary stepwise aggregation of the salts of cholic (CA) and deoxycholic (DC) acid in basic conditions (pH 12, 298 K), and address how the surface availability of chirally selective binding sites is dependent on these sequential stages of aggregation. Prior work has demonstrated sequential CA aggregation (pH 12, 298 K) including a preliminary CMC at ca. 7 mM (no chiral selection), followed by a primary CMC at ca. 14 mM that allows chiral selection of binaphthyl enantiomers. In this work, DC is also shown to form stepwise preliminary and primary aggregates (ca. 3 mM DC and 9 mM DC, respectively, pH 12, 298 K) but the preliminary 3 mM DC aggregate is capable of chirally selective solubilization of the binaphthyl enantiomers. Higher-order, secondary bile aggregates of each of CA and DC show significantly degraded chiral selectivity. Diffusion NMR reveals that secondary micelles of CA exclude the BNDHP guests, while secondary micelles of DC accommodate guests, but with a loss of chiral selectivity. These data lead to the hypothesis that secondary aggregates of DC have an exposed binding site, possibly the 7α-edge of a bile dimeric unit, while secondary CA micelles do not present binding edges to the solution, potentially instead exposing the three alcohol groups on the hydrophilic α-face to the solution.
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Affiliation(s)
- Adam R Meier
- Department of Chemistry , Bucknell University , 1 Dent Drive , Lewisburg , Pennsylvania 17837 , United States
| | - Jenna B Yehl
- Department of Chemistry , Bucknell University , 1 Dent Drive , Lewisburg , Pennsylvania 17837 , United States
| | - Kyle W Eckenroad
- Department of Chemistry , Bucknell University , 1 Dent Drive , Lewisburg , Pennsylvania 17837 , United States
| | - Gregory A Manley
- Department of Chemistry , Bucknell University , 1 Dent Drive , Lewisburg , Pennsylvania 17837 , United States
| | - Timothy G Strein
- Department of Chemistry , Bucknell University , 1 Dent Drive , Lewisburg , Pennsylvania 17837 , United States
| | - David Rovnyak
- Department of Chemistry , Bucknell University , 1 Dent Drive , Lewisburg , Pennsylvania 17837 , United States
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29
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Guo Y, Wang R, Shang Y, Liu H. Effects of polymers on the properties of hydrogels constructed using sodium deoxycholate and amino acid. RSC Adv 2018; 8:8699-8708. [PMID: 35539841 PMCID: PMC9078593 DOI: 10.1039/c8ra00171e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Revised: 03/16/2018] [Accepted: 02/09/2018] [Indexed: 11/21/2022] Open
Abstract
Polymer can participate in the formation of hydrogel network structure and provide a lot of binding sites, leading to an enhancement of the mechanical strength of the hydrogels.
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Affiliation(s)
- Yi Guo
- Key Laboratory for Advanced Materials
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Ruijin Wang
- Key Laboratory for Advanced Materials
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yazhuo Shang
- Key Laboratory for Advanced Materials
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Honglai Liu
- Key Laboratory for Advanced Materials
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
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30
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Poša M, Popović K. Structure-Property Relationships in Sodium Muricholate Derivative (Bile Salts) Micellization: The Effect of Conformation of Steroid Skeleton on Hydrophobicity and Micelle Formation-Pattern Recognition and Potential Membranoprotective Properties. Mol Pharm 2017; 14:3343-3355. [PMID: 28863265 DOI: 10.1021/acs.molpharmaceut.7b00375] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
It is known that β-muricholic acid anions prevent membrane toxicity of hydrophobic bile acids, which are being used in therapy for solubilization of the cholesterol type bile stone. Better knowledge of these derivative micelles is very important for understanding their physiological and pharmacological effects. β-Axial (a) oriented hydroxyl group from the steroid skeleton decreases the hydrophobic surface of the convex side of the steroid skeleton. Therefore, the critical micellization concentration (CMC) for steroid surfactants with β-a-OH group should increase, but in the case of OH groups of different orientations forming H-bonds in the hydrophobic phase of the micelle, it has the opposite effect; the CMC decreses, and aggregation is more favored. The set of muricholic acids (MCs) is composed by α-MC, β-MC, γ-MC, and ω-MC, where α-MC and β-MC have β-axial-OH groups. The aggregation numbers (n) are determined using the Moroi-Matsuoka-Sugioka thermodynamic method. CMC, enthalpy of demicellization, and ΔCp are determined by isothermal titration calorimetry (ITC). This report pioneers in the study of MC derivatives micellization. Micelles of β-MC and γ-MC belong to the linear congeneric group (LCG) and their micelles above 85 mM have constant aggregation numbers n = 4-5. Micelles of α-MC and ω-MC are outliers in relation to the LCG, their aggregation number constantly increases; at 85 mM n = 6.8 (α-MC) and 6.5 (ω-MC). In micelles of derivatives β-MC and γ-MC, there is a low probability for the existence of hydrogen bonds. A micelle of α-MC probably has hydrogen bonds in its hydrophobic domain.
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Affiliation(s)
- Mihalj Poša
- Faculty of Medicine, Department of Pharmacy, University of Novi Sad , Hajduk Veljkova 3, 21000 Novi Sad, Serbia
| | - Kosta Popović
- Faculty of Medicine, Department of Pharmacy, University of Novi Sad , Hajduk Veljkova 3, 21000 Novi Sad, Serbia
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31
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Markina AA, Ivanov VA, Komarov PV, Khokhlov AR, Tung SH. Self-Assembly of Lecithin and Bile Salt in the Presence of Inorganic Salt in Water: Mesoscale Computer Simulation. J Phys Chem B 2017; 121:7878-7888. [PMID: 28737387 DOI: 10.1021/acs.jpcb.7b04566] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The influence of inorganic salt on the structure of lecithin/bile salt mixtures in aqueous solution is studied by means of dissipative particle dynamics simulations. We propose a coarse-grained model of phosphatidylcholine and two types of bile salts (sodium cholate and sodium deoxycholate) and also take into account the presence of low molecular weight salt. This model allows us to study the system on rather large time and length scales (up to about ∼20 μs and 50 nm) and to reveal mechanisms of experimentally observed increasing viscosity upon increasing the low molecular weight salt concentration in this system. We show that increasing the low molecular weight salt concentration induces the growth of cylinder-like micelles formed in lecithin/bile salt mixtures in water. These wormlike micelles can entangle into transient networks displaying perceptible viscoelastic properties. Computer simulation results are in good qualitative agreement with experimental observations.
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Affiliation(s)
| | | | - Pavel V Komarov
- Institute of Organoelement Compounds RAS , Moscow 119991, Russian Federation.,Tver State University , Tver 170100, Russian Federation
| | - Alexei R Khokhlov
- Moscow State University , Moscow 119991, Russian Federation.,Institute of Organoelement Compounds RAS , Moscow 119991, Russian Federation
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32
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Poša M, Pilipović A. Self-association of C3 and C6 epimers of hyodeoxycholate anions in aqueous medium: Hydrophobicity, critical micelle concentration and aggregation number. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.04.109] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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33
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Euston SR. Molecular simulation of biosurfactants with relevance to food systems. Curr Opin Colloid Interface Sci 2017. [DOI: 10.1016/j.cocis.2017.04.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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34
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Matsuoka K, Yamamoto A. Study on Micelle Formation of Bile Salt Using Nuclear Magnetic Resonance Spectroscopy. J Oleo Sci 2017; 66:1129-1137. [DOI: 10.5650/jos.ess17063] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Keisuke Matsuoka
- Faculty of Education, Laboratory of Chemistry, Saitama University
| | - Atsushi Yamamoto
- Department of Physical Chemistry, Showa Pharmaceutical University
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35
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Holmboe M, Larsson P, Anwar J, Bergström CAS. Partitioning into Colloidal Structures of Fasted State Intestinal Fluid Studied by Molecular Dynamics Simulations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:12732-12740. [PMID: 27934534 PMCID: PMC5271571 DOI: 10.1021/acs.langmuir.6b03008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 11/04/2016] [Indexed: 06/06/2023]
Abstract
We performed molecular dynamics (MD) simulations to obtain insights into the structure and molecular interactions of colloidal structures present in fasted state intestinal fluid. Drug partitioning and interaction were studied with a mixed system of the bile salt taurocholate (TCH) and 1,2-dilinoleoyl-sn-glycero-3-phosphocholine (DLiPC). Spontaneous aggregation of TCH and DLiPC from unconstrained MD simulations at the united-atom level using the Berger/Gromos54A7 force fields demonstrated that intermolecular hydrogen bonding between TCH molecules was an important factor in determining the overall TCH and DLiPC configuration. In bilayered systems, these intermolecular hydrogen bonds resulted in embedded transmembrane TCH clusters. Free energy simulations using the umbrella sampling technique revealed that the stability of these transmembrane TCH clusters was superior when they consisted of 3 or 4 TCH per bilayer leaflet. All-atom simulations using the Slipids/GAFF force fields showed that the TCH embedded in the bilayer decreased the energy barrier to penetrate the bilayer (ΔGpen) for water, ethanol, and carbamazepine, but not for the more lipophilic felodipine and danazol. This suggests that diffusion of hydrophilic to moderately lipophilic molecules through the bilayer is facilitated by the embedded TCH molecules. However, the effect of embedded TCH on the overall lipid/water partitioning was significant for danazol, indicating that the incorporation of TCH plays a crucial role for the partitioning of lipophilic solutes into e.g. lipidic vesicles existing in fasted state intestinal fluids. To conclude, the MD simulations revealed important intermolecular interactions in lipidic bilayers, both between the bile components themselves and with the drug molecules.
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Affiliation(s)
- Michael Holmboe
- Department
of Pharmacy, Uppsala University, Uppsala
Biomedical Centre, P.O. Box 580, SE-751 23 Uppsala, Sweden
- Department
of Chemistry, Umeå University, Umeå, Sweden
| | - Per Larsson
- Department
of Pharmacy, Uppsala University, Uppsala
Biomedical Centre, P.O. Box 580, SE-751 23 Uppsala, Sweden
| | - Jamshed Anwar
- Chemical
Theory & Computation, Department of Chemistry, University of Lancaster, Lancaster LA1 4YB, U.K.
| | - Christel A. S. Bergström
- Department
of Pharmacy, Uppsala University, Uppsala
Biomedical Centre, P.O. Box 580, SE-751 23 Uppsala, Sweden
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36
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Poša M, Pilipović A, Bjedov S, Obradović S, Tepavčević V, Sakač M. Parameters of micellization and hydrophobicity of sodium salts of 7-buthyl (butylidene) and 7-octyl (octylidene) derivatives of the cholic and the deoxycholic acid in a water solution: Pattern recognition — Linear hydrophobic congeneric groups. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.09.074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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37
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Mukherjee K, Barman A, Biswas R. Impact of the aggregation behaviour of sodium cholate and sodium deoxycholate on aqueous solution structure and dynamics: A combined time resolved fluorescence and dielectric relaxation spectroscopic study. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2016.07.053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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38
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Maity B, Ahmed SA, Seth D. Interaction of Biologically Active Flavins inside Bile Salt Aggregates: Molecular Level Investigation. J Phys Chem B 2016; 120:9854-66. [PMID: 27557394 DOI: 10.1021/acs.jpcb.6b04870] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In this work we have studied the photophysics of biologically active flavin molecule lumichrome (LCM) in different bile-salt aggregates. With alteration of the functional groups of the bile salts, the photophysics of confined fluorophore is largely affected and shows difference in their spectral behavior. This study also reveals the selective prototropic species of LCM present in bile salt aggregates. In the presence of the bile salt aggregates, LCM molecule shows excitation and emission wavelength-dependent emission properties, indicating switch over of the structural change of different prototropic form of the LCM molecule. The observation of higher rotational relaxation time in NaDC aggregates compared to NaTC aggregates clearly reflects that NaDC aggregates are more rigid due to its greater hydrophobicity and large in size, which is capable to bind the guest molecule more into their nanoconfined medium. Moreover, due to less acidic nature, NaDC aggregates have more ability to accept hydrogen bond from the LCM molecule and show the selective formation of isoalloxazine N10 anion (A1 monoanionic form) of LCM.
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Affiliation(s)
- Banibrata Maity
- Department of Chemistry, Indian Institute of Technology Patna , Patna 801103, Bihar, India
| | - Sayeed Ashique Ahmed
- Department of Chemistry, Indian Institute of Technology Patna , Patna 801103, Bihar, India
| | - Debabrata Seth
- Department of Chemistry, Indian Institute of Technology Patna , Patna 801103, Bihar, India
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39
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Vila Verde A, Frenkel D. Kinetics of formation of bile salt micelles from coarse-grained Langevin dynamics simulations. SOFT MATTER 2016; 12:5172-5179. [PMID: 27199094 DOI: 10.1039/c6sm00763e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We examine the mechanism of formation of micelles of dihydroxy bile salts using a coarse-grained, implicit solvent model and Langevin dynamics simulations. We find that bile salt micelles primarily form via addition and removal of monomers, similarly to surfactants with typical head-tail molecular structures, and not via a two-stage mechanism - involving formation of oligomers and their subsequent aggregation to form larger micelles - originally proposed for bile salts. The free energy barrier to removal of single bile monomers from micelles is ≈2kBT, much less than what has been observed for head-tail surfactants. Such a low barrier may be biologically relevant: it allows for rapid release of bile monomers into the intestine, possibly enabling the coverage of fat droplets by bile salt monomers and subsequent release of micelles containing fats and bile salts - a mechanism that is not possible for ionic head-tail surfactants of similar critical micellar concentrations.
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Affiliation(s)
- Ana Vila Verde
- Theory and Bio-Systems Department, Max Planck Institute of Colloids and Interfaces, Wissenschaftspark Golm, 14424 Potsdam, Germany.
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40
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Faustino C, Serafim C, Rijo P, Reis CP. Bile acids and bile acid derivatives: use in drug delivery systems and as therapeutic agents. Expert Opin Drug Deliv 2016; 13:1133-48. [DOI: 10.1080/17425247.2016.1178233] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Célia Faustino
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Cláudia Serafim
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
| | - Patrícia Rijo
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Lisbon, Portugal
- Universidade Lusófona de Humanidades e Tecnologias, Escola de Ciências e Tecnologias da Saúde, Research Center for Biosciences and Healht Technologies (CBIOS), Lisbon, Portugal
| | - Catarina Pinto Reis
- Universidade Lusófona de Humanidades e Tecnologias, Escola de Ciências e Tecnologias da Saúde, Research Center for Biosciences and Healht Technologies (CBIOS), Lisbon, Portugal
- Biophysics and Biomedical Engineering Institute (IBEB), Faculty of Sciences, Universidade de Lisboa, Lisbon, Portugal
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41
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Poša M, Sebenji A. Chemometric and conformational approach to the analysis of the aggregation capabilities in a set of bile salts of the allo and normal series. J Pharm Biomed Anal 2016; 121:316-324. [DOI: 10.1016/j.jpba.2015.12.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 12/14/2015] [Accepted: 12/17/2015] [Indexed: 11/29/2022]
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42
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Li G, Hu Y, Sui J, Song A, Hao J. Hydrogelation and Crystallization of Sodium Deoxycholate Controlled by Organic Acids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1502-1509. [PMID: 26783993 DOI: 10.1021/acs.langmuir.6b00019] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The gelation and crystallization behavior of a biological surfactant, sodium deoxycholate (NaDC), mixed with l-taric acid (L-TA) in water is described in detail. With the variation of molar ratio of L-TA to NaDC (r = n(L-TA)/n(NaDC)) and total concentration of the mixtures, the transition from sol to gel was observed. SEM images showed that the density of nanofibers gradually increases over the sol-gel transition. The microstructures of the hydrogels are three-dimensional networks of densely packed nanofibers with lengths extending to several micrometers. One week after preparation, regular crystallized nanospheres formed along the length of the nanofibers, and it was typical among the transparent hydrogels induced by organic acids with pKa1 value <3.4. Small-angle X-ray diffraction demonstrated differences in the molecular packing between transparent and turbid gels, indicating a variable hydrogen bond mode between NaDC molecules.
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Affiliation(s)
- Guihua Li
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Ministry of Education, Shandong University , Jinan 250100, China
| | - Yuanyuan Hu
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Ministry of Education, Shandong University , Jinan 250100, China
| | - Jianfei Sui
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Ministry of Education, Shandong University , Jinan 250100, China
| | - Aixin Song
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Ministry of Education, Shandong University , Jinan 250100, China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry & Key Laboratory of Special Aggregated Materials, Ministry of Education, Shandong University , Jinan 250100, China
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43
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Solubilization and Interaction Studies of Bile Salts with Surfactants and Drugs: a Review. Appl Biochem Biotechnol 2016; 179:179-201. [PMID: 26781714 DOI: 10.1007/s12010-016-1987-x] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 01/10/2016] [Indexed: 01/10/2023]
Abstract
In this review, bile salt, bile salt-surfactant, and bile salt-drug interactions and their solubilization studies are mainly focused. Usefulness of bile salts in digestion, absorption, and excretion of various compounds and their rare properties in ordering the shape and size of the micelles owing to the presence of hydrophobic and hydrophilic faces are taken into consideration while compiling this review. Bile salts as potential bio-surfactants to solubilize drugs of interest are also highlighted. This review will give an insight into the selection of drugs in different applications as their properties get modified by interaction with bile salts, thus influencing their solution behavior which, in turn, modifies the phase-forming behavior, microemulsion, and clouding phenomenon, besides solubilization. Finally, their future perspectives are taken into consideration to assess their possible uses as bio-surfactants without side effects to human beings.
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44
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Kuchlyan J, Roy A, Dutta R, Sen S, Sarkar N. Effect of the submicellar concentration of bile salts on structural alterations of β-casein micelles. RSC Adv 2016. [DOI: 10.1039/c6ra14804b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
The role of bile salts, sodium deoxycholate (NaDC) and sodium cholate (NaCh), on the self-assembly behavior of β-casein micelles (β-CMs) was investigated using various fluorescence techniques.
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Affiliation(s)
- Jagannath Kuchlyan
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Arpita Roy
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Rupam Dutta
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Swagata Sen
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Nilmoni Sarkar
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
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45
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Serafim C, Ferreira I, Rijo P, Pinheiro L, Faustino C, Calado A, Garcia-Rio L. Lipoamino acid-based micelles as promising delivery vehicles for monomeric amphotericin B. Int J Pharm 2016; 497:23-35. [DOI: 10.1016/j.ijpharm.2015.11.034] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Revised: 11/14/2015] [Accepted: 11/20/2015] [Indexed: 12/31/2022]
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46
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Mustan F, Ivanova A, Madjarova G, Tcholakova S, Denkov N. Molecular Dynamics Simulation of the Aggregation Patterns in Aqueous Solutions of Bile Salts at Physiological Conditions. J Phys Chem B 2015; 119:15631-43. [PMID: 26605858 DOI: 10.1021/acs.jpcb.5b07063] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Classical molecular dynamics simulations are employed to monitor the aggregation behavior of six bile salts (nonconjugated and glycine- and taurine-conjugated sodium cholate and sodium deoxycholate) with concentration of 10 mM in aqueous solution in the presence of 120 mM NaCl. There are 150 ns trajectories generated to characterize the systems. The largest stable aggregates are analyzed to determine their shape, size, and stabilizing forces. It is found that the aggregation is a hierarchical process and that its kinetics depends both on the number of hydroxyl groups in the steroid part of the molecules and on the type of conjugation. The micelles of all salts are similar in shape-deformed spheres or ellipsoids, which are stabilized by hydrophobic forces, acting between the steroid rings. The differences in the aggregation kinetics of the various conjugates are rationalized by the affinity for hydrogen bond formation for the glycine-modified salts or by the longer time needed to achieve optimum packing for the tauro derivatives. Evidence is provided for the hypothesis from the literature that the entirely hydrophobic core of all aggregates and the enhanced dynamics of the molecules therein should be among the prerequisites for their pronounced solubilization capacity for hydrophobic substances in vivo.
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Affiliation(s)
- Fatmegyul Mustan
- Department of Chemical and Pharmaceutical Engineering, and ‡Department of Physical Chemistry, Faculty of Chemistry and Pharmacy, University of Sofia , 1 James Bourchier Avenue, 1164 Sofia, Bulgaria
| | - Anela Ivanova
- Department of Chemical and Pharmaceutical Engineering, and ‡Department of Physical Chemistry, Faculty of Chemistry and Pharmacy, University of Sofia , 1 James Bourchier Avenue, 1164 Sofia, Bulgaria
| | - Galia Madjarova
- Department of Chemical and Pharmaceutical Engineering, and ‡Department of Physical Chemistry, Faculty of Chemistry and Pharmacy, University of Sofia , 1 James Bourchier Avenue, 1164 Sofia, Bulgaria
| | - Slavka Tcholakova
- Department of Chemical and Pharmaceutical Engineering, and ‡Department of Physical Chemistry, Faculty of Chemistry and Pharmacy, University of Sofia , 1 James Bourchier Avenue, 1164 Sofia, Bulgaria
| | - Nikolai Denkov
- Department of Chemical and Pharmaceutical Engineering, and ‡Department of Physical Chemistry, Faculty of Chemistry and Pharmacy, University of Sofia , 1 James Bourchier Avenue, 1164 Sofia, Bulgaria
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47
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Solubilization power of an amino acid-based gemini surfactant towards the hydrophobic drug amphotericin B. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2014.11.039] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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48
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Poša M, Bjedov S, Škorić D, Sakač M. Micellization parameters (number average, aggregation number and critical micellar concentration) of bile salt 3 and 7 ethylidene derivatives: Role of the steroidal skeleton II. Biochim Biophys Acta Gen Subj 2015; 1850:1345-53. [DOI: 10.1016/j.bbagen.2015.03.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Revised: 03/23/2015] [Accepted: 03/24/2015] [Indexed: 01/22/2023]
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49
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Kundu N, Banik D, Roy A, Kuchlyan J, Sarkar N. Modulation of the aggregation properties of sodium deoxycholate in presence of hydrophilic imidazolium based ionic liquid: water dynamics study to probe the structural alteration of the aggregates. Phys Chem Chem Phys 2015; 17:25216-27. [DOI: 10.1039/c5cp03906a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this article, we have investigated the effect of hydrophilic 1-butyl-3-methylimidazolium tetrafluoroborate on the aggregation properties of sodium deoxycholate (NaDC).
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Affiliation(s)
- Niloy Kundu
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Debasis Banik
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Arpita Roy
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Jagannath Kuchlyan
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
| | - Nilmoni Sarkar
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur 721302
- India
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Mishra SS, Subuddhi U. Spectroscopic investigation of interaction of Nile Blue A, a potent photosensitizer, with bile salts in aqueous medium. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 141:67-75. [DOI: 10.1016/j.jphotobiol.2014.09.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Revised: 09/19/2014] [Accepted: 09/23/2014] [Indexed: 10/24/2022]
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