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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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Kumari S, Chauhan S, Umar A, Fouad H, Akhtar MS. Conductometric and Fluorescence Probe Analysis to Investigate the Interaction between Bioactive Peptide and Bile Salts: A Micellar State Study. Molecules 2022; 27:7561. [PMID: 36364390 PMCID: PMC9654833 DOI: 10.3390/molecules27217561] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 10/30/2022] [Accepted: 10/31/2022] [Indexed: 09/29/2023] Open
Abstract
The present work deals with the micellar state study of sodium cholate and sodium deoxycholate in the aqueous solution of a bioactive peptide, namely glycyl dipeptide, having different concentrations through conductivity and fluorescence methods at different temperatures. The data obtained from conductivity is plotted against the concentration of Bile salts, and CMC (critical micelle concentration) values are calculated. The results realized have been elucidated with reference to Glycyl dipeptide-bile salts hydrophobic/hydrophilic interactions existing in solution. In addition, the CMC values converted to mole fraction (Xcmc) values have been used to evaluate the standard thermodynamic factors of micellization viz., enthalpy H, free energy ΔGm0, and entropy (ΔSm0) which extract information regarding thermodynamic feasibility of micellar state, energy alteration, and the assorted interactions established in the existing (bile salts-water-glycyl dipeptide) system. Furthermore, the pyrene fluorescence spectrum has also been utilized to study the change in micro polarity induced by the interactions of bile salts with glycyl dipeptide and the aggregation action of bile salts. The decrease in modification in the ratio of intensities of first and third peaks i.e., (I1/I3) for the pyrene molecules in aqueous bile salts solution by the addition of dipeptide, demonstrates that the micelle polarity is affected by glycyl dipeptide. This ratio has also been utilized to determine CMC values for the studied system, and the results have been found to be in good correlation with observations made in conductivity studies.
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Affiliation(s)
- Santosh Kumari
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla 171005, India
| | - Suvarcha Chauhan
- Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla 171005, India
| | - Ahmad Umar
- Department of Chemistry, College of Science and Arts, Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran 11001, Saudi Arabia
- Department of Materials Science and Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Hassan Fouad
- Applied Medical Science Department, Community College, King Saud University, Riyadh 11433, Saudi Arabia
| | - Mohammad Shaheer Akhtar
- School of Semiconductor and Chemical Engineering, Jeonbuk National University, Jeonju 54896, Korea
- Graduate School of Integrated Energy-AI, Jeonbuk National University, Jeonju 54896, Korea
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Oxidation of sodium cholate catalyzed by Au NPs and chiral selective binding of R- and S-binaphthyl derivatives. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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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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Thermodynamic interference with bile acid demicelleization reduces systemic entry and injury during cholestasis. Sci Rep 2020; 10:8462. [PMID: 32439972 PMCID: PMC7242474 DOI: 10.1038/s41598-020-65451-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 05/04/2020] [Indexed: 02/07/2023] Open
Abstract
Bile acids (BA), with their large hydrophobic steroid nucleus and polar groups are amphipathic molecules. In bile, these exist as micelles above their critical micellar concentration (CMC). In blood at low concentrations, these exist as monomers, initiating cellular signals. This micellar to monomer transition may involve complex thermodynamic interactions between bile salts alone or with phospholipids, i.e. mixed micelles and the aqueous environment. We therefore went on to test if therapeutically relevant changes in temperature could influence micellar behavior of bile salts, and in turn whether this affected the biological responses in cells, and in vivo. Sodium taurocholate (STC) belongs to a major class of bile salts. STC has a CMC in the 5–8 mM range and its infusion into the pancreatic duct is commonly used to study pancreatitis. We thus studied micellar breakdown of STC using isothermal titration calorimetry (ITC), dynamic light scattering and cryogenic transmission electron microscopy. Under conditions relevant to the in vivo environment (pH 7.4, Na 0.15 M), ITC showed STC to have a U shaped reduction in micellar breakdown between 37 °C and 15 °C with a nadir at 25 °C approaching ≈90% inhibition. This temperature dependence paralleled pancreatic acinar injury induced by monomeric STC. Mixed micelles of STC and 1-palmitoyl, 2-oleyl phosphatidylcholine, a phospholipid present in high proportions in bile, behaved similarly, with ≈75% reduction in micellar breakdown at 25 °C compared to 37 °C. In vivo pancreatic cooling to 25 °C reduced the increase in circulating BAs after infusion of 120 mM (5%) STC into the pancreatic duct, and duct ligation. Lower BA levels were associated with improved cardiac function, reduced myocardial damage, shock, lung injury and improved survival independent of pancreatic injury. Thus micellar breakdown of bile salts is essential for their entry into the systemic circulation, and thermodynamic interference with this may reduce their systemic entry and consequent injury during cholestasis, such as from biliary pancreatitis.
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Mishra SS, Mohanty S, Mishra J, Subuddhi U. Photophysical Properties of Coumarin 1 in Bile Salt Aggregates: An Insight into the Role of Bile Salt Structure on the Aggregation Behavior. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:16555-16567. [PMID: 31742410 DOI: 10.1021/acs.langmuir.9b02664] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The photophysical behavior of Coumarin 1 (Cou1), a well-known 7-aminocoumarin derivative, is very sensitive to the microenvironment in which it resides. In the present study, the effect of six bile salt variants on the photophysical behavior of Cou1 has been investigated. Dihydroxy (deoxycholates) as well as trihydroxy (cholates) bile salts with conjugated and unconjugated side chains have been chosen to get insight into the role of bile salt structure on the microenvironment of Cou1. Cou1 photophysics was found to be extremely sensitive to the aggregation process of the bile salt variants. The reduced polarity of the micellar environment stabilizes the planar intramolecular charge transferred state of Cou1, resulting in significant modulation in its photophysics in the bile salt media. The changes in the fluorescence parameters such as fluorescence intensity, emission energy, fluorescence quantum yield, anisotropy, and lifetime of Cou1 reveal that there is a distinct difference in the aggregation behavior of deoxycholates from that of cholates. The deoxycholates form micelles more or less critically similar to those of conventional surfactants, whereas the cholates self-assemble rather noncritically over a wide concentration range, thus signifying the vital role of the extra hydroxyl group in the aggregation pattern of trihydroxy bile salts. The conjugated bile salts are found to provide a relatively more compact, rigid, and hydrophobic microenvironment to Cou1 as compared to their unconjugated counterparts. Considering the significant modulation in the photophysical properties of Cou1, it has been employed as a molecular reporter for monitoring the aggregation process of bile salt variants and important information could be obtained about the effect of bile salt structure on the aggregation pattern and also about the micellar properties.
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Affiliation(s)
- Smruti Snigdha Mishra
- Department of Chemistry , National Institute of Technology , Rourkela , 769008 Odisha , India
| | - Subhrajit Mohanty
- Department of Chemistry , National Institute of Technology , Rourkela , 769008 Odisha , India
| | - Jhili Mishra
- Department of Chemistry , Indian Institute of Technology , Madras , Chennai 600036 , India
| | - Usharani Subuddhi
- Department of Chemistry , National Institute of Technology , Rourkela , 769008 Odisha , India
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Kundu A, Verma PK, Cho M. Water Structure and Dynamics in the Stern Layer of Micelles: Femtosecond Mid-Infrared Pump-Probe Spectroscopy Study. J Phys Chem B 2019; 123:5238-5245. [PMID: 31145621 DOI: 10.1021/acs.jpcb.9b03183] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Molecular-level understanding of the water structure and dynamics in the Stern layer of micelles is important to elucidate the active role of water in biological processes on membrane surfaces. Micelles and reverse micelles are considered to be excellent membrane model systems. Here, to address the question of whether or not the spatial confinement effect on water in reverse micelles and nanometric water pool systems plays a role in modulating water dynamics, we consider four different aqueous micelle solutions and study the water dynamics in the Stern layer of micelles using a femtosecond mid-infrared pump-probe spectroscopy technique. Vibrational energy relaxation and rotational dynamics of the O?D stretch mode of HDO and the azido stretch mode of hydrazoic acid are critically dependent on the charge, polarity, and chemical structure of the surfactant head group. In particular, water molecules in the Stern layer of micelles, which are not in spatially confined environments, are notably different from those in bulk water. This finding clearly indicates that changes in the vibrational and rotational dynamics of water molecules, even in spatially confined systems, are mainly induced by surface effects instead of spatial confinement effects. We believe that the present experimental results are of importance for understanding water-involved biochemical processes on biological membranes.
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Affiliation(s)
- Achintya Kundu
- Center for Molecular Spectroscopy and Dynamics , Institute for Basic Science (IBS) , Seoul 02841 , Republic of Korea.,Department of Chemistry , Korea University , Seoul 02841 , Republic of Korea
| | - Pramod Kumar Verma
- Center for Molecular Spectroscopy and Dynamics , Institute for Basic Science (IBS) , Seoul 02841 , Republic of Korea.,Department of Chemistry , Korea University , Seoul 02841 , Republic of Korea
| | - Minhaeng Cho
- Center for Molecular Spectroscopy and Dynamics , Institute for Basic Science (IBS) , Seoul 02841 , Republic of Korea.,Department of Chemistry , Korea University , Seoul 02841 , Republic of Korea
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Pigliacelli C, Belton P, Wilde P, Qi S. Probing the molecular interactions between pharmaceutical polymeric carriers and bile salts in simulated gastrointestinal fluids using NMR spectroscopy. J Colloid Interface Sci 2019; 551:147-154. [PMID: 31075629 DOI: 10.1016/j.jcis.2019.05.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/29/2019] [Accepted: 05/01/2019] [Indexed: 02/04/2023]
Abstract
The number of poorly soluble new drugs is increasing and one of the effective ways to deliver such pharmaceutically active molecules is using hydrophilic polymers to form a solid dispersion. Bile salts play an important role in the solubilisation of poorly soluble compounds in the gastrointestinal tract (gut) prior to absorption. When a poorly water-soluble drug is delivered using a hydrophilic polymer based solid dispersion oral formulation, it is still unclear whether there are any polymer-bile salt interactions, which may influence the drug dissolution and solubilisation. This study, using two widely used hydrophilic model polymers, Hydroxypropyl methylcellulose (HPMC) and polyvynilpirrolidone (PVP), and sodium taurocholate (NaTC) as the model bile salt, aims to investigate the interactions between the polymers and bile salts in simulated fed state (FeSSIF) and fasted state (FaSSIF) gut fluids. The nature of the interactions was characterised using a range of NMR techniques. The results revealed that the aggregation behaviour of NaTC in FaSSIF and FeSSIF is much more complex than in water. The addition of hydrophilic polymers led to the occurrences of NaTC-HPMC and NaTC-PVP aggregation. For both systems, pH and ionic strength strongly influenced the aggregation behavior, while the ion type played a less significant role. The outcome of this study enriched the understanding of the aggregation behaviour of bile salts and typical hydrophilic pharmaceutical polymers in bio-relevant media. Due to the high surface-activity of the bile salts and their ability to interact with polymers, such aggregation behaviour is expected to play a role in drug solubilisation in the gut when the drug is delivered by hydrophilic polymer based dispersions.
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Affiliation(s)
| | - Peter Belton
- School of Chemistry, University of East Anglia, Norwich, Norfolk NR4 7TJ, UK
| | - Peter Wilde
- Quadram Institute Bioscience, Norwich Research Park, Norwich, Norfolk NR4 7UA, UK
| | - Sheng Qi
- School of Pharmacy, University of East Anglia, Norwich, Norfolk NR4 7TJ, UK.
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9
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Morita SY, Ikeda Y, Tsuji T, Terada T. Molecular Mechanisms for Protection of Hepatocytes against Bile Salt Cytotoxicity. Chem Pharm Bull (Tokyo) 2019; 67:333-340. [DOI: 10.1248/cpb.c18-01029] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Shin-ya Morita
- Department of Pharmacy, Shiga University of Medical Science Hospital
| | - Yoshito Ikeda
- Department of Pharmacy, Shiga University of Medical Science Hospital
| | - Tokuji Tsuji
- Department of Pharmacy, Shiga University of Medical Science Hospital
| | - Tomohiro Terada
- Department of Pharmacy, Shiga University of Medical Science Hospital
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10
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Chen YJ, Zhang J, Zhu PP, Tan XW, Lin QH, Wang WX, Yin SS, Gao LZ, Su MM, Liu CX, Xu L, Jia W, Sevrioukova IF, Lan K. Stereoselective Oxidation Kinetics of Deoxycholate in Recombinant and Microsomal CYP3A Enzymes: Deoxycholate 19-Hydroxylation Is an In Vitro Marker of CYP3A7 Activity. Drug Metab Dispos 2019; 47:574-581. [PMID: 30918015 DOI: 10.1124/dmd.119.086637] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 03/25/2019] [Indexed: 12/30/2022] Open
Abstract
The primary bile acids (BAs) synthesized from cholesterol in the liver are converted to secondary BAs by gut microbiota. It was recently disclosed that the major secondary BA, deoxycholate (DCA) species, is stereoselectively oxidized to tertiary BAs exclusively by CYP3A enzymes. This work subsequently investigated the in vitro oxidation kinetics of DCA at C-1β, C-3β, C-4β, C-5β, C-6α, C-6β, and C-19 in recombinant CYP3A enzymes and naive enzymes in human liver microsomes (HLMs). The stereoselective oxidation of DCA fit well with Hill kinetics at 1-300 μM in both recombinant CYP3A enzymes and pooled HLMs. With no contributions or trace contributions from CYP3A5, CYP3A7 favors oxidation at C-19, C-4β, C-6α, C-3β, and C-1β, whereas CYP3A4 favors the oxidation at C-5β and C-6β compared with each other. Correlation between DCA oxidation and testosterone 6β-hydroxylation in 14 adult single-donor HLMs provided proof-of-concept evidence that DCA 19-hydroxylation is an in vitro marker reaction for CYP3A7 activity, whereas oxidation at other sites represents mixed indicators for CYP3A4 and CYP3A7 activities. Deactivation caused by DCA-induced cytochrome P450-cytochrome P420 conversion, as shown by the spectral titrations of isolated CYP3A proteins, was observed when DCA levels were near or higher than the critical micelle concentration (about 1500 μM). Unlike CYP3A4, CYP3A7 showed abnormally elevated activities at 500 and 750 μM, which might be associated with an altered affinity for DCA multimers. The disclosed kinetic and functional roles of CYP3A isoforms in disposing of the gut bacteria-derived DCA may help in understanding the structural and functional mechanisms of CYP3A.
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Affiliation(s)
- Yu-Jie Chen
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Jian Zhang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Ping-Ping Zhu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Xian-Wen Tan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Qiu-Hong Lin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Wen-Xia Wang
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Shan-Shan Yin
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Ling-Zhi Gao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Ming-Ming Su
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Chang-Xiao Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Liang Xu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Wei Jia
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Irina F Sevrioukova
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
| | - Ke Lan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu, People's Republic of China (Y.-J.C., J.Z., P.-P.Z., X.-W.T., Q.-H.L., W.W., S.-S.Y., L.-Z.G., L.X., K.L.); Metabolomics Shared Resource, University of Hawaii Cancer Center, Honolulu, Hawaii (M.-M.S., W.J.); Department of Molecular Biology and Biochemistry, University of California, Irvine, California (I.F.S.); State Key Laboratory of Drug Delivery Technology and Pharmacokinetics, Tianjin Institute of Pharmaceutical Research, Tianjin, People's Republic of China (C.-X.L.); and Chengdu Health-Balance Medical Technology Co., Ltd., Chengdu, People's Republic of China (S.-S.Y., K.L.)
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11
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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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12
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Promzeleva M, Volkova T, Proshin A, Siluykov O, Mazur A, Tolstoy P, Ivanov S, Kamilov F, Terekhova I. Improved Biopharmaceutical Properties of Oral Formulations of 1,2,4-Thiadiazole Derivative with Cyclodextrins: in Vitro and in Vivo Evaluation. ACS Biomater Sci Eng 2018; 4:491-501. [PMID: 33418739 DOI: 10.1021/acsbiomaterials.7b00887] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The synthesized 1,2,4-thiadiazole derivative displaying biological activity has low aqueous solubility and dissolution rate. Novel oral formulations of thiadiazole with β- and hydroxypropyl-β-cyclodextrins were obtained by grinding and freeze-drying methods with the purpose to improve the aqueous solubility. Complex formation of 1,2,4-thiadiazole derivative with cyclodextrins was confirmed by means of solid-state 13C MAS CP/TOSS NMR. Solubility, dissolution rate and permeability of the solid inclusion complexes were evaluated in different biorelevant media (SGF, FaSSGF, FaSSIF) simulating the conditions in the gastrointestinal tract. It was demonstrated that the content of biorelevant media affects the properties of the inclusion complexes. In particular, solubilizing effect of cyclodextrins became less pronounced when the micelles of taurocholic acid and lecithin are formed in the dissolution media. The inclusion of thiadiazole into cyclodextrin cavity is in competition with its partitioning into the micelles and this should be taken into account when the in vivo behavior is predicted. The results of in vitro and in vivo experiments were found to be in agreement and showed the highest solubility, dissolution rate and bioavailability of the freeze-dried complexes of thiadiazole with hydroxypropyl-β-cyclodextrin. These complexes can be proposed as more effective dosage forms for oral administration.
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Affiliation(s)
- Maria Promzeleva
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo 153045, Russia
| | - Tatyana Volkova
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo 153045, Russia
| | - Alexey Proshin
- Institute of Physiologically Active Compounds, Russian Academy of Sciences, Chernogolovka 142432, Russia
| | - Oleg Siluykov
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo 153045, Russia.,St. Petersburg State University, St. Petersburg 199034, Russia
| | - Anton Mazur
- St. Petersburg State University, St. Petersburg 199034, Russia
| | - Peter Tolstoy
- St. Petersburg State University, St. Petersburg 199034, Russia
| | - Sergey Ivanov
- Ufa Institute of Chemistry, Russian Academy of Sciences, Ufa 450054, Russia
| | - Felix Kamilov
- Bashkir State Medical University, Ufa 450076, Russia
| | - Irina Terekhova
- G.A. Krestov Institute of Solution Chemistry, Russian Academy of Sciences, Ivanovo 153045, Russia
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13
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Sen S, Paul BK, Guchhait N. Differential interaction behaviors of an alkaloid drug berberine with various bile salts. J Colloid Interface Sci 2017; 505:266-277. [DOI: 10.1016/j.jcis.2017.05.081] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 05/19/2017] [Accepted: 05/24/2017] [Indexed: 01/17/2023]
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14
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Spectroscopic Investigation of the Interaction of the Anticancer Drug Mitoxantrone with Sodium Taurodeoxycholate (NaTDC) and Sodium Taurocholate (NaTC) Bile Salts. Molecules 2017; 22:molecules22071079. [PMID: 28657593 PMCID: PMC6152313 DOI: 10.3390/molecules22071079] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 06/14/2017] [Accepted: 06/21/2017] [Indexed: 12/25/2022] Open
Abstract
The focus of the present work was to investigate the interaction of the anticancer drug mitoxantrone with two bile salts, sodium taurodeoxycholate (NaTDC) and sodium taurocholate (NaTC). Ultraviolet-visible (UV-Vis) absorption and electron paramagnetic resonance (EPR) spectroscopy were used to quantify the interaction and to obtain information on the location of mitoxantrone in bile salt micelles. The presence of submicellar concentrations of both bile salts induces mitoxantrone aggregation and the extent of drug aggregation in NaTDC is higher than in NaTC. For micellar bile salts concentrations, mitoxantrone monomers are entrapped in the micellar core. Binding constants, micelle/water partition coefficients and the corresponding thermodynamic parameters for binding and partitioning processes were estimated using the changes in monomer absorbance in the presence of bile salts. Binding interaction of mitoxantrone is stronger for NaTDC than NaTC micelles, whereas partitioning efficiency is higher for NaTC micelles for all investigated temperatures. Thermodynamic parameters indicate that both binding and partitioning processes are spontaneous and entropy controlled. The spectral behavior and thermodynamic parameters indicate distinct types of mitoxantrone interaction with NaTDC and NaTC micelles supported by the differences in nature and structure of bile salts micelles.
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15
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Lin YS, Su KC, Kankala RK, Lee CH, Liu CL, Hu YF. A Model Prediction for Chenodeoxycholate Aggregate Formation. J Pharm Sci 2017; 106:1391-1395. [PMID: 28130035 DOI: 10.1016/j.xphs.2017.01.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Revised: 01/05/2017] [Accepted: 01/13/2017] [Indexed: 10/20/2022]
Abstract
A relationship between the chenodeoxycholate (CDC) monomer concentration and the total concentration of CDC was established using a kinetic dialysis technique. Meanwhile, the sizes of the formed simple CDC micelles were measured by a quasielastic light-scattering (QLS) technique to be nearly constant. The QLS results led to a suggestion for equilibrium models of CDC aggregate formation. According to the established relationship and the suggested models, the best curve-fitting model was selected by a least-squares technique. Furthermore, the model parameters were quantified. Based on the quantified parameters, at a minimum detectable concentration of simple CDC micelles to be ∼0.2 mM, an appropriate model corresponding concentration of CDC monomers was estimated to be ∼3.08 mM. This value is consistent with a minimum monomer CDC concentration of ∼3.13 mM for simple CDC micelle formation estimated according to the present QLS detection and the model prediction. The consistency confirms the model prediction that at a low CDC monomer concentration (<3 mM), the concentration of stable CDC dimers is much higher than that of simple CDC micelles but the contribution of simple CDC micelles to the total CDC concentration cannot be negligible.
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Affiliation(s)
- Yi-Shou Lin
- Biotechnology & Life Science, National Dong-Hwa University, Shou-Feng, Hualien 974, Taiwan
| | - Kai-Chi Su
- Biotechnology & Life Science, National Dong-Hwa University, Shou-Feng, Hualien 974, Taiwan
| | - Ranjith K Kankala
- Biotechnology & Life Science, National Dong-Hwa University, Shou-Feng, Hualien 974, Taiwan; College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Chia-Hung Lee
- Biotechnology & Life Science, National Dong-Hwa University, Shou-Feng, Hualien 974, Taiwan
| | - Chen-Lun Liu
- Biotechnology & Life Science, National Dong-Hwa University, Shou-Feng, Hualien 974, Taiwan.
| | - Yu-Fang Hu
- Pharmaceutical Drug Delivery Division, TTY Biopharm Company Limited, Taipei 11469, Taiwan
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16
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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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17
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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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18
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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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19
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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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20
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Barnadas-Rodríguez R, Cladera J. Steroidal Surfactants: Detection of Premicellar Aggregation, Secondary Aggregation Changes in Micelles, and Hosting of a Highly Charged Negative Substance. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:8980-8988. [PMID: 26244704 DOI: 10.1021/acs.langmuir.5b01352] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CHAPSO and CHAPS are zwitterionic surfactants derived from bile salts which are usually employed in protein purification and for the preparation of liposomes and bicelles. Despite their spread use, there are significant discrepancies on the critical concentrations that determine their aggregation behavior. In this work, we study the interaction between these surfactants with the negative fluorescent dye pyranine (HPTS) by absorbance, fluorescence, and infrared spectrometry to establish their concentration-dependent aggregation. For the studied surfactants, we detect three critical concentrations showing their concentration-dependent presence as a monomeric form, premicellar aggregates, micelles, and a second type of micelle in aqueous medium. The nature of the interaction of HPTS with the surfactants was studied using analogues of their tails and the negative bile salt taurocholate (TC) as reference for the sterol ring. The results indicate that the chemical groups involved are the hydroxyl groups of the polar face of the sterol ring and the sulfonate groups of the dye. This interaction causes not only the incorporation of the negative dye in CHAPSO and CHAPS micelles but also its association with their premicellar aggregates. Surprisingly, this hosting behavior for a negative charged molecule was also detected for the negative bile salt TC, bypassing, in this way, the electrostatic repulsion between the guest and the host.
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Affiliation(s)
- Ramon Barnadas-Rodríguez
- Centre d'Estudis en Biofísica, Unitat de Biofísica, Departament de Bioquímica i Biologia Molecular, Faculty of Medicine, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Catalonia, Spain
| | - Josep Cladera
- Centre d'Estudis en Biofísica, Unitat de Biofísica, Departament de Bioquímica i Biologia Molecular, Faculty of Medicine, Universitat Autònoma de Barcelona , 08193 Cerdanyola del Vallès, Catalonia, Spain
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21
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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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22
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Poša M, Bjedov S, Sebenji A, Sakač M. Wittig reaction (with ethylidene triphenylphosphorane) of oxo-hydroxy derivatives of 5β-cholanic acid: Hydrophobicity, haemolytic potential and capacity of derived ethylidene derivatives for solubilisation of cholesterol. Steroids 2014; 86:16-25. [PMID: 24819990 DOI: 10.1016/j.steroids.2014.04.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 04/17/2014] [Accepted: 04/21/2014] [Indexed: 12/24/2022]
Abstract
Bile acid salts are biosurfactants which form mixed micelles with phospholipids in vertebrates. These mixed micelles are suitable for solubilisation of cholesterol. For therapeutic purposes some bile acid salts as sodium ursocholate are used. However, bile acid anions possess low capacity for solubilisation of cholesterol. Thus, synthesis of more hydrophobic and less membranotoxic bile acid derivatives is of the great interest. In this paper Wittig reaction between ethylidene triphenylphosphorane and different bile acids oxo derivatives is examined. Wittig reaction of bile acids has not been studied much. C12 oxo group is inert in this reaction. If Wittig reaction happens on C7 oxo group stereospecifically E ethylidene stereoisomer is obtained, while the same reaction on C3 oxo group leads to more reactive not sterospecific product. In this paper stereochemical course of investigated Wittig reactions is thoroughly analysed. Hydrophobicity of derived products is determined over the temperature (T) dependence on retention coefficients (k) in reversed phase high resolution chromatography. Using method of principle components on k=f(T) matrix it is found that values of first principle components best describe hydrophobicity of analysed bile acids, while the second principal component is responsible for their hydrophilicity. By in silico molecular descriptors: valence connectivity index of order 3 (X3v) and packing density index (PDI), linear regression equations are obtained that can be used to predict hydrophobicity (over retention coefficient) of bile acids that belong to set of more congeneric groups. Membranotoxicity is determined by haemolytic potential. Monoethylidene derivatives of bile acids (in the form of anions) have lower membranotoxicity than deoxycholic acids anion. Sodium salt of deoxycholic acid 7-ethylidene derivative has 11% greater capacity for solubilisation of cholesterol monohydrate than sodium salt of deoxycholic acid.
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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.
| | - Srđan Bjedov
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg D. Obradovića 3, 21000 Novi Sad, Serbia
| | - Ana Sebenji
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Hajduk Veljka 3, 21000 Novi Sad, Serbia
| | - Marija Sakač
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, Trg D. Obradovića 3, 21000 Novi Sad, Serbia
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23
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Liu CL, Kankala RK, Yang JW, Hsu YC, Lee CH, Hu YF. Aggregate formation in tauroursodeoxycholate solutions. J Taiwan Inst Chem Eng 2014. [DOI: 10.1016/j.jtice.2013.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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24
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Poša M, Sebenji A. Determination of number-average aggregation numbers of bile salts micelles with a special emphasis on their oxo derivatives—The effect of the steroid skeleton. Biochim Biophys Acta Gen Subj 2014; 1840:1072-82. [DOI: 10.1016/j.bbagen.2013.11.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 10/27/2013] [Accepted: 11/07/2013] [Indexed: 01/22/2023]
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25
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Gioiello A, Venturoni F, Tamimi S, Custodi C, Pellicciari R, Macchiarulo A. Conformational properties of cholic acid, a lead compound at the crossroads of bile acid inspired drug discovery. MEDCHEMCOMM 2014. [DOI: 10.1039/c4md00024b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
DFT and NMR spectroscopy studies unveil three major minima conformations of cholic acid that may affect its biological properties.
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Affiliation(s)
- Antimo Gioiello
- Dipartimento di Chimica e Tecnologia del Farmaco
- Università degli Studi di Perugia
- 06123 Perugia, Italy
| | - Francesco Venturoni
- Dipartimento di Chimica e Tecnologia del Farmaco
- Università degli Studi di Perugia
- 06123 Perugia, Italy
| | - Sara Tamimi
- Dipartimento di Chimica e Tecnologia del Farmaco
- Università degli Studi di Perugia
- 06123 Perugia, Italy
| | - Chiara Custodi
- Dipartimento di Chimica e Tecnologia del Farmaco
- Università degli Studi di Perugia
- 06123 Perugia, Italy
| | - Roberto Pellicciari
- Dipartimento di Chimica e Tecnologia del Farmaco
- Università degli Studi di Perugia
- 06123 Perugia, Italy
- TES Pharma S.r.l
- Perugia, Italy
| | - Antonio Macchiarulo
- Dipartimento di Chimica e Tecnologia del Farmaco
- Università degli Studi di Perugia
- 06123 Perugia, Italy
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26
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Mandal S, Ghosh S, Banik D, Banerjee C, Kuchlyan J, Sarkar N. An Investigation into the Effect of the Structure of Bile Salt Aggregates on the Binding Interactions and ESIHT Dynamics of Curcumin: A Photophysical Approach To Probe Bile Salt Aggregates as a Potential Drug Carrier. J Phys Chem B 2013; 117:13795-807. [PMID: 24102639 DOI: 10.1021/jp407824t] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sarthak Mandal
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Surajit Ghosh
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Debasis Banik
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Chiranjib Banerjee
- Department
of Chemistry, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
| | - Jagannath Kuchlyan
- 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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Perez-Tejeda P, Jimenez-Ruiz A, Grueso EM, Prado-Gotor R, Carrasco C, Pastor A, Alvarez N, Garcia-Lora M, Garcia-Pageo M. Binding Study of the [Ru(NH3)5pz]2+Complex to Bile Anion Aggregates through Kinetic Measurements. INT J CHEM KINET 2013. [DOI: 10.1002/kin.20813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- P. Perez-Tejeda
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - A. Jimenez-Ruiz
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - E. M. Grueso
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - R. Prado-Gotor
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - C. Carrasco
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - A. Pastor
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - N. Alvarez
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - M. Garcia-Lora
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
| | - M. Garcia-Pageo
- Department of Physical Chemistry, Faculty of Chemistry; Sevilla University; 41012 Sevilla Spain
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28
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Mandal S, Ghosh S, Aggala HHK, Banerjee C, Rao VG, Sarkar N. Modulation of the photophysical properties of 2,2'-bipyridine-3,3'-diol inside bile salt aggregates: a fluorescence-based study for the molecular recognition of bile salts. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:133-143. [PMID: 23215031 DOI: 10.1021/la304319r] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
2,2'-Bipyridine-3,3'-diol (BP(OH)(2)) has been used as a sensitive excited-state intramolecular proton transfer fluorophore to assess different bile salt aggregates as one of the potential biologically relevant host systems useful for carrying many sparingly water-soluble drug molecules. The formation of inclusion complexes, complex-induced fluorescence behavior, and their binding ability have been investigated from the modulated photophysics of BP(OH)(2) by means of photophysical techniques. The constrained hydrophobic environment provided by the aggregates significantly reduces the water-assisted nonradiative decay channels and lengthens the fluorescence lifetime of the proton-transferred DK tautomer. Both the absorption and fluorescence properties of BP(OH)(2) are found to be sensitive to the change in the structure, size, and hydrophobicity of the aggregates. Fluorescence quenching experiments were performed to gain insight into the differential distribution of the probe molecules between bulk aqueous phase and nanocavities of various aggregates. The observation of longer fluorescence lifetime and rotational relaxation time in NaDC aggregates compared to that in NaCh and NaTC aggregates indicates that the binding structures of NaDC aggregates are more rigid due to its greater hydrophobicity and larger size and therefore provide better protection to the bound guest. It is noteworthy to mention that the hydrophobic microenvironments provided by bile salt aggregates are much stronger than that provided by micelles and cyclodextrins. The accessibility of water to the aggregate-bound guest can significantly be enhanced with the addition of organic cosolvents. However, the efficiency decreases in the order of dimethylformamide, acetonitrile, and methanol.
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Affiliation(s)
- Sarthak Mandal
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
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29
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Nishimura T, Sanada Y, Matsuo T, Okobira T, Mylonas E, Yagi N, Sakurai K. A bimolecular micelle constructed from amphiphilic pillar[5]arene molecules. Chem Commun (Camb) 2013; 49:3052-4. [DOI: 10.1039/c3cc41186a] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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30
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Mandal S, Ghosh S, Banerjee C, Rao VG, Sarkar N. Modulation of Photophysics and Photodynamics of 1′-Hydroxy-2′-acetonaphthone (HAN) in Bile Salt Aggregates: A Study of Polarity and Nanoconfinement Effects. J Phys Chem B 2012; 116:8780-92. [DOI: 10.1021/jp302435h] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Sarthak Mandal
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Surajit Ghosh
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Chiranjib Banerjee
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Vishal Govind Rao
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721302, WB, India
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31
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Binding study to sodium cholate aggregates using a kinetic method and the reaction: [Ru(NH3)5pz]2++[Co(C2O4)3]3− as a probe. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.09.046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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33
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Li R, Carpentier E, Newell ED, Olague LM, Heafey E, Yihwa C, Bohne C. Effect of the structure of bile salt aggregates on the binding of aromatic guests and the accessibility of anions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:13800-13808. [PMID: 19606836 DOI: 10.1021/la901826y] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The binding of naphthalene (Np), 1-ethylnaphthalene (EtNp), acenaphthene (AcN), and 1-naphthyl-1-ethanol (NpOH) as guests to the aggregates of sodium cholate (NaCh), taurocholate (NaTC), deoxycholate (NaDC), and deoxytaurocholate (NaTDC) was studied with the objective of determining how the structure of the bile salts affects the binding dynamics of guests and quenchers with the bile salt aggregates. Time-resolved and steady-state fluorescence experiments were used to determine the binding efficiency of the guests with the aggregates and were also employed to investigate the quenching of the singlet excited state of the guests by iodide anions. Quenching studies of the triplet excited states using laser flash photolysis were employed to determine the accessibility to the aggregate of nitrite anions, used as quenchers, and the dissociation rate constants of the guests from the bile salt aggregates. The binding efficiency of the guests to NaDC and NaTDC is higher than for NaCh and NaTC, and the protection efficiency is also higher for NaDC and NaTDC, in line with the larger aggregates formed for the latter bile salts. The formation of aggregates is in part driven by the structure of the guest, where an increased protection efficiency and residence time can be achieved by the introduction of short alkyl substituents (AcN or EtNp vs Np). NpOH was shown to be located in a very different environment in all four bile salts when compared to AcN, EtNp, and Np, suggesting that hydrogen bonding plays an important role in the formation of the aggregate around NpOH.
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Affiliation(s)
- Rui Li
- Department of Chemistry, University of Victoria, P.O. Box 3065, Victoria, British Columbia V8W 3 V6, Canada
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34
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Wu Q, Cheng Y, Hu J, Zhao L, Xu T. Insights into the Interactions between Dendrimers and Bioactive Surfactants: 3. Size-Dependent and Hydrophobic Property-Dependent Encapsulation of Bile Salts. J Phys Chem B 2009; 113:12934-43. [DOI: 10.1021/jp906661z] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qinglin Wu
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China, Laboratory of Functional Membranes, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Yiyun Cheng
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China, Laboratory of Functional Membranes, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Jingjing Hu
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China, Laboratory of Functional Membranes, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Libo Zhao
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China, Laboratory of Functional Membranes, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Tongwen Xu
- Hefei National Laboratory for Physical Sciences at Microscale and School of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P. R. China, Laboratory of Functional Membranes, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
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35
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de Petris G, Festa MR, Galantini L, Giglio E, Leggio C, Pavel NV, Troiani A. Sodium Glycodeoxycholate and Glycocholate Mixed Aggregates in Gas and Solution Phases. J Phys Chem B 2009; 113:7162-9. [DOI: 10.1021/jp9010586] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giulia de Petris
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Maria Rosa Festa
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Luciano Galantini
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Edoardo Giglio
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Claudia Leggio
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Nicolae Viorel Pavel
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
| | - Anna Troiani
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza Università di Roma, P. le Aldo Moro 5, 00185 Roma, Italy
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36
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Hebling CM, Thompson LE, Eckenroad KW, Manley GA, Fry RA, Mueller KT, Strein TG, Rovnyak D. Sodium cholate aggregation and chiral recognition of the probe molecule (R,S)-1,1'-binaphthyl-2,2'-diylhydrogenphosphate (BNDHP) observed by 1H and 31P NMR spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:13866-74. [PMID: 19053628 PMCID: PMC2705809 DOI: 10.1021/la802000x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Bile salt micelles can be employed as a pseudostationary phase in micellar electrokinetic capillary chromatography (MEKC) separations of chiral analytes. To improve MEKC separations of chiral analytes, a molecular level understanding of micelle aggregation in the presence of analyte is needed. Here, aggregation of sodium cholate has been observed by exploiting the presence of a model analyte molecule. The 31P and 1H nuclear magnetic resonance spectroscopy (NMR) chemical shifts of (R,S)-1,1'-binaphthyl-2,2'-diylhydrogenphosphate ((R,S)-BNDHP), a model analyte in chiral MEKC separations, are demonstrated to be very sensitive to the aggregation state of the bile salt sodium cholate. In addition to probing micellar aggregation, the NMR spectral resolution of enantiomeric species is also stronglycorrelated with chiral separations in MEKC. In this work, the aggregation of sodium cholate in basic solutions (pH 12) has been observed over the concentration range 0-100 mM. The primary critical micelle concentration (cmc) was found to be 14 +/- 1 mM for basic solutions of sodium cholate. In addition, a primitive aggregate is clearly observed to form at 7 +/- 1 mM sodium cholate. The data also show pseudo-cmc behavior for secondary aggregation observed in the regime of 50-60 mM cholate. Finally, the H5-H7 edge of BNDHP is shown to be sensitive to chirally selective interactions with primary cholate micelles.
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Affiliation(s)
- Christine M Hebling
- Department of Chemistry, Bucknell University, Lewisburg, Pennsylvania 17837, USA
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37
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Chiou S, Huang C, Cheng Y, Lu C, Lin G. 1
H NMR characterization of a combination model of the mixed micelle taurocholate and 1,2‐ethylene‐di‐
N
‐
n
‐butylcarbamate. EUR J LIPID SCI TECH 2008. [DOI: 10.1002/ejlt.200700318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Shyh‐Ying Chiou
- Department of Neurosurgery, Chung‐Shan Medical University and Hospital, Taichung, Taiwan
| | - Chuan‐Fu Huang
- Department of Neurosurgery, Chung‐Shan Medical University and Hospital, Taichung, Taiwan
| | - Yu‐Ru Cheng
- Department of Chemistry, National Chung‐Hsing University, Taichung, Taiwan
| | - Chun‐Ping Lu
- Institute of Biochemistry, Academia Sinica, Taipei, Taiwan
| | - Gialih Lin
- Department of Chemistry, National Chung‐Hsing University, Taichung, Taiwan
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38
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Aggregation behavior of sodium deoxycholate and its interaction with cetyltrimethylammonium bromide in aqueous solution studied by NMR spectroscopy. Colloid Polym Sci 2008. [DOI: 10.1007/s00396-008-1938-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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39
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Amundson LL, Li R, Bohne C. Effect of the guest size and shape on its binding dynamics with sodium cholate aggregates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:8491-500. [PMID: 18637697 DOI: 10.1021/la800439m] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The binding dynamics of the guests acenaphthene, phenanthrene, fluorene, and acenaphthenol with sodium cholate aggregates were studied using laser flash photolysis and fluorescence. The location of the guests in the bile salt aggregate is determined by the guest's hydrophobicity, where acenaphthene, phenanthrene, and fluorene bind to the primary aggregates, while acenaphthenol binds to the secondary bile salt aggregates. The residence time of the guests in the primary aggregates and the access of ionic species from the aqueous phase to the guest in the aggregate depend on the size and the shape of the guest. These results show that bile salt aggregates are adaptable supramolecular host systems.
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Affiliation(s)
- Laurie L Amundson
- Department of Chemistry, University of Victoria, PO Box 3065, Victoria, BC, Canada
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40
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Matsuoka K, Ishii S, Honda C, Endo K, Saito A, Moroi Y, Shibata O. NMR Study on Solubilization of Sterols and Aromatic Compounds in Sodium Taurodeoxycholate Micelles. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.2334] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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41
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Pártay LB, Jedlovszky P, Sega M. Molecular Aggregates in Aqueous Solutions of Bile Acid Salts. Molecular Dynamics Simulation Study. J Phys Chem B 2007; 111:9886-96. [PMID: 17661512 DOI: 10.1021/jp072974k] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The aggregation behavior of two bile acid salts (i.e., sodium cholate and sodium deoxycholate) has been studied in their aqueous solutions of three different concentrations (i.e., 30, 90,and 300 mM) by means of molecular dynamics computer simulations. To let the systems reach thermodynamic equilibrium, rather long simulations have been performed: the equilibration period, lasting for 20-50 ns, has been followed by a 20 ns long production phase, during which the average size of the bile aggregates (regarded to be the slowest varying observable) has already fluctuated around a constant value. The production phase of the runs has been about an order of magnitude longer than the average lifetime of both the monomeric bile ions and the bonds that link two neighboring bile ions together to be part of the same aggregate. This has allowed the bile ions belonging to various aggregates to be in a dynamic equilibrium with the isolated monomers. The observed aggregation behavior of the studied bile ions has been found to be in good qualitative agreement with experimental findings. The analysis of the results has revealed that, due to their molecular structure, which is markedly different from that of the ordinary aliphatic surfactants, the bile ions form rather different aggregates than the usual spherical micelles. In the lowest concentration solution studied, the bile ions only form small oligomers. In the case of deoxycholate, these oligomers, such as the ordinary micelles, are kept together by hydrophobic interactions, whereas in the sodium cholate system, small hydrogen-bonded aggregates (mostly dimers) are also present. In the highest concentration systems, the bile ions form large secondary micelles, which are kept together both by hydrophobic interactions and by hydrogen bonds. Namely, in these secondary micelles, small hydrophobic primary micelles are linked together via the formation of hydrogen bonds between their hydrophilic outer surfaces.
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Affiliation(s)
- Lívia B Pártay
- Laboratory of Interfaces and Nanosize Systems, Institute of Chemistry, Eötvös LorAnd University, Pázmány Péter stny. 1/a, H-1117 Budapest, Hungary
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42
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Funasaki N, Fukuba M, Kitagawa T, Nomura M, Ishikawa S, Hirota S, Neya S. Reply to the comment on "Two-dimensional NMR study on the structures of micelles of sodium taurocholate". J Phys Chem B 2007; 109:9851-2. [PMID: 16852187 DOI: 10.1021/jp0455374] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Noriaki Funasaki
- Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan
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43
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Galantini L, Giglio E, Pavel NV. Comment on "Two-dimensional NMR study on the structures of micelles of sodium taurocholate". J Phys Chem B 2007; 109:9849-50. [PMID: 16852186 DOI: 10.1021/jp0477708] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- L Galantini
- Dipartimento di Chimica, Università di Roma La Sapienza, P. le A. Moro 5, 00185 Roma, Italy
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44
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Reis S, Moutinho CG, Pereira E, de Castro B, Gameiro P, Lima JLFC. Beta-blockers and benzodiazepines location in SDS and bile salt micellar systems. An ESR study. J Pharm Biomed Anal 2007; 45:62-69. [PMID: 17606356 DOI: 10.1016/j.jpba.2007.05.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2007] [Revised: 05/18/2007] [Accepted: 05/21/2007] [Indexed: 10/23/2022]
Abstract
The work here described aimed to find out the location of the different species of two families of pharmaceutical substances, namely two beta-blockers (atenolol and nadolol) and two benzodiazepines (midazolam and nitrazepam) in synthetic (sodium dodecyl sulphate, SDS) and natural (bile salts-sodium cholate and sodium deoxycholate) micellar aggregate solutions. Electronic spin resonance spectroscopy studies were carried out, at 25 degrees C and at an ionic strength of 0.10 M in NaCl, using 5-, 12- and 16-doxylstearic acid probes (AS). The immobilization degree of solubilized stearic acid spin probes was found to vary with the position of the nitroxide group in the sequence 5-doxylstearic acid>12-doxylstearic acid>16-doxylstearic acid for SDS and 12-doxylstearic acid>5-doxylstearic acid>16-doxylstearic acid for both bile salts investigated. Therefore, from the rotational correlational time values obtained, it can be inferred that the structure of bile salt micelles is markedly different from that of SDS micelles and the results suggest that the bile salt micelles studied have similar structure independently of differences in the molecular structure of the respective bile salts. Drug location studies were performed at pH 4.0 (SDS solutions) or 7.0 (bile salt solutions) and 10.8 in order to study the effect of the drug ionisation on its relative position on micelles. The results have shown that drug location is controlled by the (i) drug hydrophilicity and acid/base properties, with the more soluble compound in water (atenolol) exhibiting smaller variation of rotational correlational time (in SDS and bile salts solutions), and with both beta-blockers exhibiting smaller deviations in the protonated forms and (ii) the bile salt monomers, with the dihydroxylic bile salt (deoxycholate) producing larger differences. The work described herein allow us to conclude that the (protonated) beta-blockers are probably located on the surface of the detergent micelles, and linked to them by means of essentially electrostatic forces, while the (neutral) benzodiazepines are probably located deeper in the interior of the micelles.
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Affiliation(s)
- Salette Reis
- REQUIMTE, Departamento de Química-Física, Faculdade de Farmácia, Universidade do Porto, 4099-030 Porto, Portugal.
| | | | - Eulália Pereira
- REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
| | - Baltazar de Castro
- REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
| | - Paula Gameiro
- REQUIMTE, Departamento de Química, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, Portugal
| | - José L F C Lima
- REQUIMTE, Departamento de Química-Física, Faculdade de Farmácia, Universidade do Porto, 4099-030 Porto, Portugal
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45
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Matsuoka K, Hirosawa T, Honda C, Endo K, Moroi Y, Shibata O. Thermodynamic study on competitive solubilization of cholesterol and beta-sitosterol in bile salt micelles. Chem Phys Lipids 2007; 148:51-60. [PMID: 17524379 DOI: 10.1016/j.chemphyslip.2007.04.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2006] [Revised: 04/09/2007] [Accepted: 04/14/2007] [Indexed: 10/23/2022]
Abstract
Differences in the preferential solubilization of cholesterol and competitive solubilizates (beta-sitosterol and aromatic compounds) in bile salt micelles was systematically studied by changing the molar ratio of cholesterol to competitive solubilizates. The cholesterol solubility in a mixed binary system (cholesterol and beta-sitosterol) was almost half that of the cholesterol alone system, regardless of the excess beta-sitosterol quantity added. On the other hand, the mutual solubilities of cholesterol and pyrene were not inhibited by their presence in binary mixed crystals. Finally, the cholesterol solubility was measured by changing the alkyl chain length of n-alkylbenzenes. When tetradecylbenzene was added to the bile solution, the cholesterol solubility decreased slightly and was below the original cholesterol solubility. Based on Gibbs energy change (DeltaG degrees ) for solubilization, chemicals that inhibit cholesterol solubility in their combined crystal systems showed a larger negative DeltaG degrees value than cholesterol alone.
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Affiliation(s)
- Keisuke Matsuoka
- Department of Physical Chemistry, Showa Pharmaceutical University, Higashi-Tamagawagakuen 3-3165, Machida, Tokyo, Japan.
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46
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Funasaki N, Fukuba M, Hattori T, Ishikawa S, Okuno T, Hirota S. Micelle formation of bile salts and zwitterionic derivative as studied by two-dimensional NMR spectroscopy. Chem Phys Lipids 2006; 142:43-57. [PMID: 16620799 DOI: 10.1016/j.chemphyslip.2006.02.025] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2006] [Revised: 02/25/2006] [Accepted: 02/27/2006] [Indexed: 10/24/2022]
Abstract
The self-association of sodium taurodeoxycholate (NaTDC) and a zwitterionic derivative of cholic acid (CHAPS) in deuterium oxide was investigated by one- and two-dimensional nuclear magnetic resonance spectroscopy (NMR) spectroscopy. Analysis of the concentration dependence of the chemical shifts of several protons suggested that NaTDC and CHAPS form nonamers and heptamers, respectively, as well as dimer. The equilibrium constants of dimerization and the micellar aggregation numbers are close to the literature values. From the intensities of intermolecular cross-peaks in the nuclear Overhauser effect spectroscopy (NOESY) and rotating frame nuclear Overhauser effect spectroscopy (ROESY) spectra of NaTDC and CHAPS micellar solutions, partial structures of their micelles were estimated. The CHAPS micelle consists mainly of the back-to-back association, similarly to taurocholate (NaTC). However, the NaTDC micelle consists of the back-to-face association, because the face of NaTDC is rather hydrophobic. Furthermore, the back of bile molecules forms a convex plane and the face forms a concave plane. The back-to-face structure of NaTDC will be stabilized by a close contact between these planes. The chemical shift changes of several protons of CHAPS and NaTC in the micellar state are close to each other, but are different from those of NaTDC. This finding is consistent with the difference in their micellar structures.
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Affiliation(s)
- Noriaki Funasaki
- Department of Physical Chemistry and 21st Century COE Program, Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan.
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Leggio C, Galantini L, Zaccarelli E, Pavel NV. Small-Angle X-ray Scattering and Light Scattering on Lysozyme and Sodium Glycocholate Micelles. J Phys Chem B 2005; 109:23857-69. [PMID: 16375371 DOI: 10.1021/jp053603b] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Small-angle X-ray scattering (SAXS) together with static (SLS) and dynamic light scattering (DLS) measurements were carried out on aqueous solutions of lysozyme (LY) and of the ionic biological detergent sodium glycocholate (NaGC). Apparent diffusion coefficients (D app), excess Rayleigh ratio, and SAXS spectra were measured for 0.1 M NaGC solutions at different ionic strengths (0.05-0.30 M NaCl). The same data were collected for LY in sodium acetate buffer 50 mM without and with 92 mM NaCl as a function of protein concentration (10-80 g L(-1)). A correlated analysis of SLS data and SAXS spectra was first tested on the LY samples and then extended to the interpretation of the NaGC data to infer information on particle structure and interaction potential. A hard-core (HC) interaction shell of uniform thickness, a screened Coulomb potential of the electric double layer (EDL) or the complete DLVO potential were alternatively used to represent the long-range tail of the interaction potential. Whenever an essentially repulsive tail is expected, all the representations give reasonable results, but the data analysis does not allow the discrimination between the oblate and the prolate symmetries of the NaGC aggregates. The DLVO model allows the interpretation of the data even when the attractive component determines the tail character. With this model an overall fit of the micelle data at all the NaCl concentrations was successfully performed by assuming a simple spherical symmetry of the micelles and invariant values of their ionization degree and Hamaker constant, thus considering just the screening effect of the added electrolyte. Whatever model is used, the results point out that the aggregates are quite hydrated (26-38 water molecules per monomer) and very slightly grow by increasing the NaCl concentration. When spherical symmetry is assumed the aggregate radii for all the samples fall in the range 15-16 A. From the SAXS and SLS, best fitting geometrical parameters, and interparticle structure factor, a D app value was calculated for each sample. An excellent consistence is achieved for LY results. On the contrary, calculated D app values systematically lower than the experimental values are always obtained for the NaGC micelles. Micelle polydispersity and internal dynamics seem to be the most probable reasons of the bad agreement.
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Affiliation(s)
- Claudia Leggio
- Dipartimento di Chimica, Research Center SOFT-INFM-CNR, and Dipartimento di Fisica, Università di Roma "La Sapienza", P.le A. Moro 5, 00185 Roma, Italy
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Funasaki N, Ishikawa S, Neya S. 1:1 and 1:2 Complexes between Long-Chain Surfactant and α-Cyclodextrin Studied by NMR. J Phys Chem B 2004. [DOI: 10.1021/jp0370268] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Noriaki Funasaki
- Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan Graduate School of Pharmaceutical Sciences, Chiba University, Inage-Yayoi, Chiba 263-8522, Japan
| | - Seiji Ishikawa
- Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan Graduate School of Pharmaceutical Sciences, Chiba University, Inage-Yayoi, Chiba 263-8522, Japan
| | - Saburo Neya
- Kyoto Pharmaceutical University, Misasagi, Yamashina-ku, Kyoto 607-8414, Japan Graduate School of Pharmaceutical Sciences, Chiba University, Inage-Yayoi, Chiba 263-8522, Japan
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