1
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Ravald H, Wiedmer SK. Potential of liposomes and lipid membranes for the separation of β-blockers by capillary electromigration and liquid chromatographic techniques. J Chromatogr A 2023; 1706:464265. [PMID: 37573755 DOI: 10.1016/j.chroma.2023.464265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/21/2023] [Accepted: 07/30/2023] [Indexed: 08/15/2023]
Abstract
β-Blockers belong to a frequently used class of drugs primarily used to treat heart and circulatory conditions. Here we describe the use of lipid vesicles and liposomes as cell membrane biomimicking models in capillary electromigration (CE) and liquid chromatography (LC) techniques for the investigation of interactions between lipid membranes and β-blockers. In addition to liposomes, the use of commercial intravenous lipid emulsions, and their interactions with β-blockers are also discussed. Different CE and LC instrumental techniques designed for these purposes are introduced. Other methodologies for studying interactions between β-blockers and lipid membranes are also briefly discussed, and the different methodologies are compared. The aim is to give the reader a good overview on the status of the use of liposomes and lipids in CE and LC for studying β-blocker interactions.
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Affiliation(s)
- Henri Ravald
- Department of Chemistry, A.I. Virtasen aukio 1, POB 55, 00014 University of Helsinki, Finland
| | - Susanne K Wiedmer
- Department of Chemistry, A.I. Virtasen aukio 1, POB 55, 00014 University of Helsinki, Finland.
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2
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Miyabe K, Inaba S, Umeda M. A study on attempt for determination of permeation kinetics of coumarin at lipid bilayer of liposomes by using capillary electrophoresis with moment analysis theory. J Chromatogr A 2023; 1687:463691. [PMID: 36542884 DOI: 10.1016/j.chroma.2022.463691] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 11/14/2022] [Accepted: 11/28/2022] [Indexed: 11/30/2022]
Abstract
It was tried to develop a moment analysis method for the determination of lipid membrane permeability. The first absolute and second central moments of elution peaks measured by liposome electrokinetic chromatography (LEKC) are analyzed by using moment equations. As a concrete example, elution peak profiles of coumarin in a LEKC system, in which liposomes consisting of 1-palmitoyl-2-oleoyl-sn‑glycero-3-phosphocholine (POPC) and phosphatidylserine (PS) are used as a pseudo-stationary phase, were analyzed. It seems that lipid membrane permeability of coumarin across the lipid bilayer of POPC/PS liposomes was measured by the moment analysis method because previous permeability measurements using parallel artificial membrane permeability assay (PAMPA) and Caco-2 cells indicated that coumarin is permeable across lipid bilayer. However, it was also pointed out that the moment analysis method with LEKC is not effective for the determination of lipid membrane permeability and that it provides information about adsorption/desorption kinetics at lipid bilayer of liposomes. Therefore, different moment equations were also developed for the determination of adsorption/desorption rate constants of coumarin from the LEKC data. It was demonstrated that permeation rate constants at lipid bilayer or adsorption/desorption rate constants can be determined from the LEKC data on the basis of moment analysis theory for the mass transfer phenomena of coumarin at the lipid bilayer of POPC/PS liposomes. Mass transfer kinetics of solutes at lipid bilayer should be determined under the conditions that liposomes originally be because they are self-assembling and dynamic systems formed through weak interactions between phospholipid monomers. The moment analysis method using LEKC is effective for the experimental determination of the mass transfer rate constants at the lipid bilayer of liposomes because neither immobilization nor chemical modification of liposomes is necessary when LEKC data are measured. It is expected that the results of this study contribute to the dissemination of an opportunity for the determination of permeation rate constants or adsorption/desorption rate constants at the lipid bilayer of liposomes to many researchers because capillary electrophoresis is widespread.
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Affiliation(s)
- Kanji Miyabe
- Department of Chemistry, Faculty of Science, Rikkyo University, 3-34-1, Nishi-Ikebukuro, Toshimaku, Tokyo 171-8501, Japan.
| | - Shunta Inaba
- Department of Chemistry, Faculty of Science, Rikkyo University, 3-34-1, Nishi-Ikebukuro, Toshimaku, Tokyo 171-8501, Japan
| | - Momoko Umeda
- Department of Chemistry, Faculty of Science, Rikkyo University, 3-34-1, Nishi-Ikebukuro, Toshimaku, Tokyo 171-8501, Japan
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3
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Cetuk H, Anishkin A, Scott AJ, Rempe SB, Ernst RK, Sukharev S. Partitioning of Seven Different Classes of Antibiotics into LPS Monolayers Supports Three Different Permeation Mechanisms through the Outer Bacterial Membrane. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1372-1385. [PMID: 33449700 DOI: 10.1021/acs.langmuir.0c02652] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The outer membrane (OM) of Gram-negative (G-) bacteria presents a barrier for many classes of antibacterial agents. Lipopolysaccharide (LPS), present in the outer leaflet of the OM, is stabilized by divalent cations and is considered to be the major impediment for antibacterial agent permeation. However, the actual affinities of major antibiotic classes toward LPS have not yet been determined. In the present work, we use Langmuir monolayers formed from E. coli Re and Rd types of LPS to record pressure-area isotherms in the presence of antimicrobial agents. Our observations suggest three general types of interactions. First, some antimicrobials demonstrated no measurable interactions with LPS. This lack of interaction in the case of cefsulodin, a third-generation cephalosporin antibiotic, correlates with its low efficacy against G- bacteria. Ampicillin and ciprofloxacin also show no interactions with LPS, but in contrast to cefsulodin, both exhibit good efficacy against G- bacteria, indicating permeation through common porins. Second, we observe substantial intercalation of the more hydrophobic antibiotics, novobiocin, rifampicin, azithromycin, and telithromycin, into relaxed LPS monolayers. These largely repartition back to the subphase with monolayer compression. We find that the hydrophobic area, charge, and dipole all show correlations with both the mole fraction of antibiotic retained in the monolayer at the monolayer-bilayer equivalence pressure and the efficacies of these antibiotics against G- bacteria. Third, amine-rich gentamicin and the cationic antimicrobial peptides polymyxin B and colistin show no hydrophobic insertion but are instead strongly driven into the polar LPS layer by electrostatic interactions in a pressure-independent manner. Their intercalation stably increases the area per molecule (by up to 20%), which indicates massive formation of defects in the LPS layer. These defects support a self-promoted permeation mechanism of these antibiotics through the OM, which explains the high efficacy and specificity of these antimicrobials against G- bacteria.
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Affiliation(s)
- Hannah Cetuk
- Biology Department, University of Maryland, College Park, Maryland 20742, United States
| | - Andriy Anishkin
- Biology Department, University of Maryland, College Park, Maryland 20742, United States
| | - Alison J Scott
- Department of Microbial Pathogenesis, University of Maryland, Baltimore, Baltimore Maryland 21201, United States
| | - Susan B Rempe
- Center for Chemical, Biological, Radiation, and Nuclear Defense and Energy Technology, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Robert K Ernst
- Department of Microbial Pathogenesis, University of Maryland, Baltimore, Baltimore Maryland 21201, United States
| | - Sergei Sukharev
- Biology Department, University of Maryland, College Park, Maryland 20742, United States
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4
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Rodriguez EL, Poddar S, Iftekhar S, Suh K, Woolfork AG, Ovbude S, Pekarek A, Walters M, Lott S, Hage DS. Affinity chromatography: A review of trends and developments over the past 50 years. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1157:122332. [PMID: 32871378 PMCID: PMC7584770 DOI: 10.1016/j.jchromb.2020.122332] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/08/2020] [Accepted: 08/12/2020] [Indexed: 12/16/2022]
Abstract
The field of affinity chromatography, which employs a biologically-related agent as the stationary phase, has seen significant growth since the modern era of this method began in 1968. This review examines the major developments and trends that have occurred in this technique over the past five decades. The basic principles and history of this area are first discussed. This is followed by an overview of the various supports, immobilization strategies, and types of binding agents that have been used in this field. The general types of applications and fields of use that have appeared for affinity chromatography are also considered. A survey of the literature is used to identify major trends in these topics and important areas of use for affinity chromatography in the separation, analysis, or characterization of chemicals and biochemicals.
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Affiliation(s)
| | - Saumen Poddar
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Sazia Iftekhar
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Kyungah Suh
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Ashley G Woolfork
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Susan Ovbude
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Allegra Pekarek
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Morgan Walters
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - Shae Lott
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA
| | - David S Hage
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588, USA.
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5
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Tsopelas F, Tsantili-Kakoulidou A. Advances with weak affinity chromatography for fragment screening. Expert Opin Drug Discov 2019; 14:1125-1135. [DOI: 10.1080/17460441.2019.1648425] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Fotios Tsopelas
- Laboratory of Inorganic and Analytical Chemistry, School of Chemical Engineering, National Technical University of Athens, Athens, Greece
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6
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Zhang C, Rodriguez E, Bi C, Zheng X, Suresh D, Suh K, Li Z, Elsebaei F, Hage DS. High performance affinity chromatography and related separation methods for the analysis of biological and pharmaceutical agents. Analyst 2018; 143:374-391. [PMID: 29200216 PMCID: PMC5768458 DOI: 10.1039/c7an01469d] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The last few decades have witnessed the development of many high-performance separation methods that use biologically related binding agents. The combination of HPLC with these binding agents results in a technique known as high performance affinity chromatography (HPAC). This review will discuss the general principles of HPAC and related techniques, with an emphasis on their use for the analysis of biological compounds and pharmaceutical agents. Various types of binding agents for these methods will be considered, including antibodies, immunoglobulin-binding proteins, aptamers, enzymes, lectins, transport proteins, lipids, and carbohydrates. Formats that will be discussed for these methods range from the direct detection of an analyte to indirect detection based on chromatographic immunoassays, as well as schemes based on analyte extraction or depletion, post-column detection, and multi-column systems. The use of biological agents in HPLC for chiral separations will also be considered, along with the use of HPAC as a tool to screen or study biological interactions. Various examples will be presented to illustrate these approaches and their applications in fields such as biochemistry, clinical chemistry, and pharmaceutical research.
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Affiliation(s)
- Chenhua Zhang
- Department of Chemistry, University of Nebraska, Lincoln, NE 68588-0304, USA.
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7
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Blokhina SV, Volkova TV, Golubev VA, Perlovich GL. Understanding of Relationship between Phospholipid Membrane Permeability and Self-Diffusion Coefficients of Some Drugs and Biologically Active Compounds in Model Solvents. Mol Pharm 2017; 14:3381-3390. [DOI: 10.1021/acs.molpharmaceut.7b00401] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Svetlana V. Blokhina
- Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia
| | - Tatyana V. Volkova
- Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia
| | - Vasiliy A. Golubev
- Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia
| | - German L. Perlovich
- Institute of Solution Chemistry, Russian Academy of Sciences, 153045 Ivanovo, Russia
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8
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Comparison of lipid membrane–water partitioning with various organic solvent–water partitions of neutral species and ionic species: Uniqueness of cerasome as a model for the stratum corneum in partition processes. Int J Pharm 2015; 494:1-8. [DOI: 10.1016/j.ijpharm.2015.08.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2015] [Revised: 07/09/2015] [Accepted: 08/03/2015] [Indexed: 11/20/2022]
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9
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Development of metal affinity-immobilized liposome chromatography and its basic characteristics. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2013.12.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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11
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SDS-Based Biomembrane Mimetic Chromatography for Prediction of Human Drug Transport as an in Vitro Technique. Chromatographia 2013. [DOI: 10.1007/s10337-013-2480-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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12
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Immobilized lipodisks as model membranes in high-throughput HPLC-MS analysis. Anal Bioanal Chem 2013; 405:4859-69. [DOI: 10.1007/s00216-013-6892-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 02/26/2013] [Accepted: 03/04/2013] [Indexed: 11/25/2022]
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13
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Omran AA. An in vitro spectrometric method for determining the partition coefficients of non-steroidal anti-inflammatory drugs into human erythrocyte ghost membranes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 104:461-467. [PMID: 23277182 DOI: 10.1016/j.saa.2012.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Revised: 11/10/2012] [Accepted: 12/02/2012] [Indexed: 06/01/2023]
Abstract
Usefulness of second derivative spectrophotometry for determining the partition coefficients (K(p)s) of four non-steroidal anti-inflammatory drugs (NSAIDs) between human erythrocyte ghost (HEG) membranes and buffer at simulated physiological conditions (pH=7.4, 37 °C) has been adequately emphasized. In the absorption spectra for each of the investigated NSAIDs, λ(max) was red-shifted in presence of HEG membranes, indicating that NSAIDs have the nature of metachromasy between lipid bilayer and water. Further quantitative spectral data for calculating K(p)s could not be obtained from the absorption spectra because of the presence of background signal impacts of HEG lipid bilayers. Second derivative spectra were calculated from absorption spectra and fortunately showed three isosbestic derivative points for each NSAID, indicating without doubt that the background signals were entirely eliminated. From the relation between the derivative intensity change (ΔD) induced by addition of HEG membranes, K(p)s were calculated and obtained with RSD of below 6%. Fractions of partitioned NSAIDs are in well-harmony with that derived from the experimental values. Moreover, validity of the proposed method was confirmed. Conclusively, the second derivative spectrometry has proven to be a facile, reliable and more expeditious method to obtain in vitro K(p)s of drugs to HEG without previous separation.
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Affiliation(s)
- Ahmed A Omran
- Chemistry Department, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt.
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14
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LI LH, XUE X, PENG C, BAI XH. Hollow Fiber Liposome Microscreening and Its Application in Screening and Fishing Membrane Permeation Ingredient of Coumarins and Lignans in Traditional Chinese Medicine. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2013. [DOI: 10.1016/s1872-2040(13)60634-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Hou G, Niu J, Song F, Liu Z, Liu S. Studies on the interactions between ginsenosides and liposome by equilibrium dialysis combined with ultrahigh performance liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 923-924:1-7. [PMID: 23454302 DOI: 10.1016/j.jchromb.2013.01.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Revised: 01/27/2013] [Accepted: 01/31/2013] [Indexed: 10/27/2022]
Abstract
To study the interactions between components of Panax Ginseng and liposome biomembrane, we applied the equilibrium dialysis system combined with ultrahigh performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) approach to analyze and identify the bioactive components of ginseng. Moreover, the effect of pH value has also been investigated on their interactions between the ginsenosides of ginseng extract and biomembrane. The result shows that seven kinds of ginsenosides have obvious interactions with biomembrane in comparison with the standards in terms of tandem mass spectrometry (MS/MS) data along with retention time, including four panaxadiol ginsenosides (Rb1, Rb2, Rc, Rd) and three panaxatriol ginsenosides (Re, Rf, Rg2). The value of binding degree decreased with the increase of molecular weight. The sugar moieties which are attached to C-20 were the main factor affecting the binding degree of panaxadiol ginsenosides. The interactions between panaxadiol ginsenosides and biomembrane correlate to the type and number of sugar moieties in ginsenosides. The sugar moieties which are at C-6 and C-20 have been shown to influence the value of binding degree for panaxatriol ginsenosides. In addition, the pH value has been shown to have an impact on the interactions. Overall, ginsenoside Rd has a better absorption character among the seven ginsenosides. In the study, we have screened the potential bioactive components of ginseng in vitro using the equilibrium dialysis-UPLC-MS/MS method, and then predicted the potential bioactivities of ginseng, which contribute to the investigation of the efficacy of ginseng.
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Affiliation(s)
- Guangyue Hou
- Changchun Center of Mass Spectrometry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
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16
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Osanai H, Ikehara T, Miyauchi S, Shimono K, Tamogami J, Nara T, Kamo N. A study of the interaction of drugs with liposomes with isothermal titration calorimetry. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/jbpc.2013.41002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Artursson P, Palm K, Luthman K. Caco-2 monolayers in experimental and theoretical predictions of drug transport. Adv Drug Deliv Rev 2012. [DOI: 10.1016/j.addr.2012.09.005] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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Interaction of dodecaborate cluster compounds on hydrophilic column materials in water. J Chromatogr A 2012; 1256:98-104. [DOI: 10.1016/j.chroma.2012.07.055] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 07/09/2012] [Accepted: 07/13/2012] [Indexed: 11/20/2022]
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19
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Dąbrowska M, Starek M, Skuciński J. Lipophilicity study of some non-steroidal anti-inflammatory agents and cephalosporin antibiotics: A review. Talanta 2011; 86:35-51. [DOI: 10.1016/j.talanta.2011.09.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2011] [Revised: 09/05/2011] [Accepted: 09/12/2011] [Indexed: 02/03/2023]
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20
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Kannisto K, Murtomäki L, Viitala T. An impedance QCM study on the partitioning of bioactive compounds in supported phospholipid bilayers. Colloids Surf B Biointerfaces 2011; 86:298-304. [DOI: 10.1016/j.colsurfb.2011.04.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 04/05/2011] [Accepted: 04/07/2011] [Indexed: 11/26/2022]
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21
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Polyethylene glycol-stabilized lipid disks as model membranes in interaction studies based on electrokinetic capillary chromatography and quartz crystal microbalance. Anal Biochem 2011; 414:117-24. [DOI: 10.1016/j.ab.2011.03.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2010] [Revised: 03/11/2011] [Accepted: 03/14/2011] [Indexed: 11/23/2022]
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22
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Godard T, Grushka E. The use of phospholipid modified column for the determination of lipophilic properties in high performance liquid chromatography. J Chromatogr A 2011; 1218:1211-8. [DOI: 10.1016/j.chroma.2010.12.105] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2010] [Revised: 12/20/2010] [Accepted: 12/23/2010] [Indexed: 10/18/2022]
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23
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Liu X, Testa B, Fahr A. Lipophilicity and its relationship with passive drug permeation. Pharm Res 2010; 28:962-77. [PMID: 21052797 DOI: 10.1007/s11095-010-0303-7] [Citation(s) in RCA: 270] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2010] [Accepted: 10/11/2010] [Indexed: 12/18/2022]
Abstract
In this review, we first summarize the structure and properties of biological membranes and the routes of passive drug transfer through physiological barriers. Lipophilicity is then introduced in terms of the intermolecular interactions it encodes. Finally, lipophilicity indices from isotropic solvent systems and from anisotropic membrane-like systems are discussed for their capacity to predict passive drug permeation across biological membranes such as the intestinal epithelium, the blood-brain barrier (BBB) or the skin. The broad evidence presented here shows that beyond the predictive power of lipophilicity parameters, the various intermolecular forces they encode allow a mechanistic interpretation of passive drug permeation.
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Affiliation(s)
- Xiangli Liu
- Department of Pharmaceutical Technology, Friedrich-Schiller-Universität Jena, Lessingstrasse 8, 07743 Jena, Germany.
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24
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Bucak S, Wang C, Laibinis PE, Hatton TA. Dynamics of supported lipid bilayer deposition from vesicle suspensions. J Colloid Interface Sci 2010; 348:608-14. [DOI: 10.1016/j.jcis.2010.04.087] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2010] [Revised: 04/28/2010] [Accepted: 04/29/2010] [Indexed: 10/19/2022]
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25
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Microcalorimetric and zeta potential study on binding of drugs on liposomes. Colloids Surf B Biointerfaces 2010; 78:275-82. [DOI: 10.1016/j.colsurfb.2010.03.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 03/18/2010] [Accepted: 03/19/2010] [Indexed: 11/30/2022]
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26
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Laine J, Lokajová J, Parshintsev J, Holopainen JM, Wiedmer SK. Interaction of a commercial lipid dispersion and local anesthetics in human plasma: implications for drug trapping by “lipid-sinks”. Anal Bioanal Chem 2010; 396:2599-607. [DOI: 10.1007/s00216-009-3435-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Revised: 12/23/2009] [Accepted: 12/28/2009] [Indexed: 10/19/2022]
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27
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Ikonen M, Murtomäki L, Kontturi K. Studying the interactions of drugs and hydrophobic model membranes using contact angle goniometry. Colloids Surf B Biointerfaces 2009; 71:107-12. [DOI: 10.1016/j.colsurfb.2009.01.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2008] [Revised: 12/16/2008] [Accepted: 01/13/2009] [Indexed: 10/21/2022]
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28
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Wang Y, Kong L, Lei X, Hu L, Zou H, Welbeck E, Bligh SA, Wang Z. Comprehensive two-dimensional high-performance liquid chromatography system with immobilized liposome chromatography column and reversed-phase column for separation of complex traditional Chinese medicine Longdan Xiegan Decoction. J Chromatogr A 2009; 1216:2185-91. [DOI: 10.1016/j.chroma.2008.05.074] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2007] [Revised: 05/11/2008] [Accepted: 05/15/2008] [Indexed: 11/30/2022]
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29
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Literature Alerts. J Microencapsul 2008. [DOI: 10.3109/02652049609026022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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30
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Whateley TL. Literature Alerts. Drug Deliv 2008. [DOI: 10.3109/10717549609031183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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31
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Boija E, Lundquist A, Nilsson M, Edwards K, Isaksson R, Johansson G. Bilayer disk capillary electrophoresis: A novel method to study drug partitioning into membranes. Electrophoresis 2008; 29:3377-83. [DOI: 10.1002/elps.200700682] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Du H, Watzl J, Wang J, Zhang X, Yao X, Hu Z. Prediction of retention indices of drugs based on immobilized artificial membrane chromatography using Projection Pursuit Regression and Local Lazy Regression. J Sep Sci 2008; 31:2325-33. [DOI: 10.1002/jssc.200700665] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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33
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Wang SR, Chen Y, Wu LP, Miao WJ, Xiong MJ, Chen C, Zhong ZR, Ye LM. Development of predictive quantitative retention-activity relationship models of HMG-CoA reductase inhibitors by biopartitioning micellar chromatography. J Pharm Biomed Anal 2008; 46:243-9. [DOI: 10.1016/j.jpba.2007.09.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2007] [Revised: 08/08/2007] [Accepted: 09/13/2007] [Indexed: 10/22/2022]
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Dan-Dan D, Cai-Yun L, Zhi-Xin L, Jian-Ying L, Jian-Zhong L. Prediction of Passive Transport of 10 Natural Products by Liposome-based Fluorescence Technique. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2007. [DOI: 10.1016/s1872-2040(08)60001-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Qi LW, Li P, Li SL, Sheng LH, Li RY, Song Y, Li HJ. Screening and identification of permeable components in a combined prescription of Danggui Buxue decoction using a liposome equilibrium dialysis system followed by HPLC and LC-MS. J Sep Sci 2007; 29:2211-20. [PMID: 17069252 DOI: 10.1002/jssc.200600107] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A new method, i.e., liposome equilibrium dialysis followed by HPLC and LC-MS analysis, has been developed for the screening of permeable components in combined prescriptions of Danggui Buxue decoction (CPDBD). Multiple permeable components were simultaneously predicted by comparison of chromatograms of CPDBD extract before and after interaction with liposome membranes. A diode-array detector (DAD) and an evaporative light scattering detector (ELSD) were used, and the permeable compounds were identified by comparison with the available reference compounds and confirmed by on-line LC-MS. About fifteen compounds in a CPDBD extract were found to interact with liposome membranes. They were identified as calycosin-7-O-beta-D-glucoside (1), senkyunolide I or H (2), ononin (3), (6alphaR,11alphaR)-9,10-dimethoxypterocarpan-3-O-beta-D-glucoside (4), (3R)-2'-hydroxy-3',4'-dimethoxyisoflavan-7-O-beta-D-glucoside (5), calycosin (6), astragaloside IV (7), isoastragaloside II (8), formononetin (9), (6alphaR, 11alphaR),-3-hydroxy-9,10-dimethoxypterocarpan (10), (3R)-7,2'-dihydroxy-3',4'-dimethoxyisoflavan (11), astragaloside I (12), isoastragaloside I (13), E-ligustilide (14), and Z-ligustilide (15), respectively. Among all permeable components, 1, 3, 6, and 9 (flavonoids), 2, 14, and 15 (phthalides), and 7 (saponins) have been considered as major bioactive components in CPDBD. Therefore, this new method appears useful as a first step in the screening of bioactive components in natural products including Traditional Chinese Medicines (TCMs).
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Affiliation(s)
- Lian-Wen Qi
- Key Laboratory of Modern Chinese Medicines, Department of Pharmacognosy, China Pharmaceutical University, Nanjing, PR China
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Shimanouchi T, Walde P, Gardiner J, Mahajan YR, Seebach D, Thomae A, Krämer SD, Voser M, Kuboi R. Permeation of a beta-heptapeptide derivative across phospholipid bilayers. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2007; 1768:2726-36. [PMID: 17714685 DOI: 10.1016/j.bbamem.2007.07.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2007] [Revised: 06/28/2007] [Accepted: 07/05/2007] [Indexed: 11/30/2022]
Abstract
Based on a number of experiments it is concluded that the fluorescein labeled beta-heptapeptide fluoresceinyl-NH-CS-(S)-beta(3)hAla-(S)-beta(3)hArg-(R)-beta(3)hLeu-(S)-beta(3)hPhe-(S)-beta(3)hAla-(S)-beta(3)hAla-(S)-beta(3)hLys-OH translocates across lipid vesicle bilayers formed from DOPC (1,2-dioleoyl-sn-glycero-3-phosphocholine). The conclusion is based on the following observations: (i) addition of the peptide to the vicinity of micrometer-sized giant vesicles leads to an accumulation of the peptide inside the vesicles; (ii) if the peptide is injected inside individual giant vesicles, it is released from the vesicles in a time dependent manner; (iii) if the peptide is encapsulated within sub-micrometer-sized large unilamellar vesicles, it is released from the vesicles as a function of time; (iv) if the peptide is submitted to immobilized liposome chromatography, the peptide is retained by the immobilized DOPC vesicles. Furthermore, the addition of the peptide to calcein-containing DOPC vesicles does not lead to significant calcein leakage and vesicle fusion is not observed. The finding that derivatives of the beta-heptapeptide (S)-beta(3)hAla-(S)-beta(3)hArg-(R)-beta(3)hLeu-(S)-beta(3)hPhe-(S)-beta(3)hAla-(S)-beta(3)hAla-(S)-beta(3)hLys-OH can translocate across phospholipid bilayers is supported by independent measurements using Tb(3+)-containing large unilamellar vesicles prepared from egg phosphatidylcholine and wheat germ phosphatidylinositol (molar ratio of 9:1) and a corresponding peptide that is labeled with dipicolinic acid instead of fluorescein. The experiments show that this dipicolinic acid labeled beta-heptapeptide derivative also permeates across phospholipid bilayers. The possible mechanism of the translocation of the particular beta-heptapeptide derivatives across the membrane of phospholipid vesicles is discussed within the frame of the current understanding of the permeation of certain oligopeptides across simple phospholipid bilayers.
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Affiliation(s)
- Toshinori Shimanouchi
- Department of Chemical Science and Engineering, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka, Japan
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37
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Nanosized bilayer disks: Attractive model membranes for drug partition studies. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2007; 1768:1518-25. [DOI: 10.1016/j.bbamem.2007.03.006] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2006] [Revised: 02/14/2007] [Accepted: 03/12/2007] [Indexed: 10/23/2022]
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Preparation of an ion-exchangeable polymer bead wrapped with bilayer membrane structures for high performance liquid chromatography. Anal Chim Acta 2007; 589:76-83. [PMID: 17397656 DOI: 10.1016/j.aca.2007.02.047] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2006] [Revised: 10/26/2006] [Accepted: 02/19/2007] [Indexed: 10/23/2022]
Abstract
We synthesized a chromatographic packing material that has a non-covalently attached dihexadecyl phosphate (DHP) bilayer membrane structure on a CA08S, a nonporous-type cationic polymer bead with a diameter ranging from 11 to 14 microm. Confocal fluorescence microscopic and differential scanning calorimetric analyses of the DHP-CA08S complex revealed that the DHP bilayer membrane structures were formed on the surface of the CA08S polymer beads. When the functionality of the DHP-CA08S complex was evaluated in the ion-exchange HPLC of proteins, the retention behavior of the proteins on the DHP-CA08S complex column totally mirrored the anionic property of the DHP bilayer membrane surface, not the cationic property of the CA08S bead. Methylene blue (MB) was eluted from the DHP-CA08S complex column in the isocratic elution mode, but not at all from a CK08S column, a styrene-divinylbenzene based cation-exchange polymer. When the column temperature was elevated from 50 to 60 degrees C, the peak shape of MB on the DHP-CA08S complex column became fairly sharp without a change in its peak area, which mirrored the characteristic phase transition of the DHP bilayer membrane formed on the DHP-CA08S complex.
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39
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Zhang HY, Hu CX, Liu CP, Li HF, Wang JS, Yuan KL, Tang JW, Xu GW. Screening and analysis of bioactive compounds in traditional Chinese medicines using cell extract and gas chromatography–mass spectrometry. J Pharm Biomed Anal 2007; 43:151-7. [PMID: 16876368 DOI: 10.1016/j.jpba.2006.06.033] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2006] [Revised: 06/15/2006] [Accepted: 06/20/2006] [Indexed: 10/24/2022]
Abstract
As the cost of drug development is always many times more than that of drug discovery, predictive methods aiding in the screening of bioavailable drug candidates are of profound significance. In this paper, a novel method for screening bioactive compounds from traditional Chinese medicines (TCMs) was developed by using living cell extract and gas chromatography (GC)-mass spectrometer (MS). The method was validated by using elemene emulsion injection (EEI), a typical TCM with known active compound, to interact with murine ascites hepatocarcinoma cell strain with high metastatic potential (HCa-F). Finally, the method was applied to screen the bioactive compounds from multi-component zedoary turmeric oil and glucose injection (ZTOGI). After HCa-F cells was incubated in ZTOGI, ethyl acetate (EtOAc) was used to extract the compounds in the cells for GC-MS analysis. Fourteen compounds were detected in the desorption eluate of HCa-F cell extract of ZTOGI, and further identified by MS. Curzerene and beta-elemene were found to be two major bioactive compounds in ZTOGI. These results show that the method developed may be applied to quickly screen the potential bioactive components in TCMs interacting with the target cells.
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Affiliation(s)
- H Y Zhang
- National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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40
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Ickenstein LM, Edwards K, Sjöberg S, Carlsson J, Gedda L. A novel 125I-labeled daunorubicin derivative for radionuclide-based cancer therapy. Nucl Med Biol 2006; 33:773-83. [PMID: 16934696 DOI: 10.1016/j.nucmedbio.2006.06.002] [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: 03/24/2006] [Revised: 05/19/2006] [Accepted: 06/01/2006] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Auger electron emitters, such as (125)I, are getting increasingly wider recognition as alternatives to current anticancer treatments. The effectiveness of Auger electrons is strongly dependent on their proximity to DNA and is therefore considered as harmless outside the nucleus. METHODS (125)I or (127)I was conjugated with Comp1, Comp2 or Comp3 - three derivatives of the chemotherapeutic drug daunorubicin. Their capacity factors, DNA-binding constants and exclusion parameters, and the degree of DNA fragmentation after incubating isolated DNA with our (127)I- or (125)I-conjugated daunorubicin derivatives were determined. Human breast adenocarcinoma (SK-BR-3) cells were incubated with the derivatives; fluorescent microscopy and autoradiography images were generated; and cell growth was monitored. RESULTS AND DISCUSSION The capacity factor of (127)I-Comp1 was similar to those of daunorubicin and doxorubicin, whereas lower capacity factors of (127)I-Comp2 and (127)I-Comp3 suggested reduced interactions with lipid membranes. DNA exclusion parameters and binding constants of (127)I-Comp1 and (127)I-Comp2, but not of (127)I-Comp3, were similar to those of doxorubicin. Fluorescent microscopy and autoradiography images of SK-BR-3 cells revealed that (127)I-Comp1 and (125)I-Comp1 accumulated in tumor cell nuclei, whereas (127)I-Comp2 and (127)I-Comp3 were present predominantly in other cell compartments. The binding of (125)I-Comp1 to isolated chromosomal DNA led to major fragmentation. Incubation of SK-BR-3 cells with (125)I-Comp1 inhibited cell growth, whereas doxorubicin or (127)I-Comp1 administered at the same concentration had no effect on cell growth. Our results thus suggest that (125)I-Comp1 has the potential to become a new tool for anticancer therapy.
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Affiliation(s)
- Ludger M Ickenstein
- Department of Physical and Analytical Chemistry, Uppsala University, P.O. Box 579, 75121 Uppsala, Sweden
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41
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Boija E, Johansson G. Interactions between model membranes and lignin-related compounds studied by immobilized liposome chromatography. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2006; 1758:620-6. [PMID: 16733046 DOI: 10.1016/j.bbamem.2006.04.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2005] [Revised: 04/10/2006] [Accepted: 04/11/2006] [Indexed: 10/24/2022]
Abstract
In order to elucidate the modes of interaction between lignin precursors and membranes, we have studied the influence of temperature, lipid composition and buffer composition on the partitioning of monolignol and dilignol model substances into phospholipid bilayers. The partitioning was determined by immobilized liposome chromatography, which is an established method for studies of pharmaceutical drugs but a new approach in studies of lignin synthesis. The temperature dependence of the retention and the effect of a high ammonium sulfate concentration in the mobile phase demonstrated that the interaction involved both hydrophobic effects and polar interactions. There was also a good correlation between the partitioning and the estimated hydrophobicity, in terms of octanol/water partitioning. The partitioning behavior of the model substances suggests that passive diffusion over the cell membrane is a possible transport route for lignin precursors. This conclusion is strengthened by comparison of the present results with the partitioning of pharmaceutical drugs that are known to pass cell membranes by diffusion.
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Affiliation(s)
- Elisabet Boija
- Department of Biochemistry and Organic Chemistry, Biomedical Center, Uppsala University, Box 576, SE-751 23 Uppsala, Sweden
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42
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Evaluation of temperature and guanidine hydrochloride-induced protein–liposome interactions by using immobilized liposome chromatography. Biochem Eng J 2006. [DOI: 10.1016/j.bej.2005.08.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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43
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Flaten GE, Dhanikula AB, Luthman K, Brandl M. Drug permeability across a phospholipid vesicle based barrier: A novel approach for studying passive diffusion. Eur J Pharm Sci 2006; 27:80-90. [PMID: 16246536 DOI: 10.1016/j.ejps.2005.08.007] [Citation(s) in RCA: 132] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2005] [Revised: 07/08/2005] [Accepted: 08/11/2005] [Indexed: 11/23/2022]
Abstract
The aim of this study was to develop a novel predictive medium-throughput screening method for drug permeability, with use of a tight barrier of liposomes on a filter support. To our knowledge no one has succeeded in depositing membrane barriers without the use of an inert solvent such as hexadecane. The first part of the study involved development of a protocol for preparation of these barriers, which were made of liposomes from egg phosphatidylcholin in phosphate buffer pH 7.4 with 10 % (v/v) ethanol. The liposomes were deposited into the pores and onto the surface of a filter support (mixed cellulose ester) by use of centrifugation. Solvent evaporation and freeze-thaw cycling were then used to promote fusion of liposomes. A tight barrier could thus be obtained as shown with calcein permeability and electrical resistance. In the second part of the study the model was validated using 21 drug compounds, which cover a wide range of physicochemical properties and absorption (F(a)) in humans (13-100%). The drug permeation studies were carried out at room temperature with phosphate buffer (pH 7.4) in both acceptor and donor chambers. The apparent permeability coefficients obtained from the phospholipid vesicle based model correlated well with literature data on human absorption in vivo, which suggests that its performance is adequate and that the method is suitable for rapid screening of passive transport of new chemical entities. The results obtained from our model were compared with polar surface area (PSA) and experimental logD and with results obtained by established permeability screening methods such as immobilized liposome chromatography (ILC), the PAMPA models and the Caco-2 model. Our approach seems to model the in vivo absorption better than PSA, experimental logD, the ILC and PAMPA models, when similar conditions are used as in our assay, and equally well as the Caco-2 model and the Double Sink PAMPA (DS-PAMPA) model.
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Affiliation(s)
- Gøril Eide Flaten
- University of Tromsø, Institute of Pharmacy, Department of Pharmaceutics and Biopharmaceutics, N-9037 Tromsø, Norway
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44
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Sheng LH, Li SL, Kong L, Chen XG, Mao XQ, Su XY, Zou HF, Li P. Separation of compounds interacting with liposome membrane in combined prescription of traditional Chinese medicines with immobilized liposome chromatography. J Pharm Biomed Anal 2005; 38:216-24. [PMID: 15925211 DOI: 10.1016/j.jpba.2005.01.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2004] [Revised: 01/09/2005] [Accepted: 01/14/2005] [Indexed: 11/17/2022]
Abstract
Immobilized liposome chromatography (ILC), the stationary phase of which has been regarded as a mimic biomembranes system was used to separate and analyze compounds interacting with liposome membrane in Danggui Buxue decoction, a combined prescription of traditional Chinese medicines (CPTCMs), and its compositions Radix Astragli and Radix Angelica Sinensis. More than 10 main peaks in the extract of Danggui Buxue decoction were resolved on the ILC column, suggesting that more than 10 components in the prescription have significant retention on ILC column. Ligustilide, astragaloside IV and formononetin, three main bioactive ingredients in Danggui Buxue decoction, were found to have relatively significant, while ferulic acid, another bioactive ingredient in the prescription, relatively weak retention on ILC column. Effects of the eluent pH and amount of immobilized phosphatidylcholine (PC) on separation of interactional compounds in the extract of Danggui Buxue decoction were also investigated. It was found that these two factors strongly affected the retention of some interactional compounds. In addition, the fractions partitioned with different solvents from water extract of this combined prescription were evaluated with this ILC column system.
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Affiliation(s)
- Liang-Hong Sheng
- National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 161 Zhongshan Road, Dalian 116011, China.
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45
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Johansson E, Engvall C, Arfvidsson M, Lundahl P, Edwards K. Development and initial evaluation of PEG-stabilized bilayer disks as novel model membranes. Biophys Chem 2005; 113:183-92. [PMID: 15617826 DOI: 10.1016/j.bpc.2004.09.006] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2004] [Revised: 09/13/2004] [Accepted: 09/13/2004] [Indexed: 11/22/2022]
Abstract
We show in this study that stable dispersions dominated by flat bilayer disks may be prepared from a carefully optimized mixture of 1,2-distearoyl-sn-glycero-3-phosphocholine (DSPC), cholesterol, and 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethyleneglycol)-5000] [PEG-DSPE(5000)]. By varying the content of the latter component, the average diameter of the disks can be changed in the interval from about 15 to 60 nm. The disks show excellent long-term stability, and their size and structure remain unaltered in the temperature range between 25 and 37 degrees C. The utility of the disks as artificial model membranes was confirmed and compared to uni- and multilamellar liposomes in a series of drug partition studies. Data obtained by isothermal titration calorimetry and drug partition chromatography (also referred to as immobilized liposome chromatography) indicate that the bilayer disks may serve as an attractive and sometimes superior alternative to liposomes in studies aiming at the investigation of drug-membrane interactions. The disks may, in addition, hold great potential for structure/function studies of membrane-bound proteins. Furthermore, we suggest that the sterically stabilized bilayer disks may prove interesting as carriers for in vivo delivery of protein/peptide, as well as conventional amphiphilic and/or hydrophobic, drugs.
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Affiliation(s)
- Emma Johansson
- Department of Physical Chemistry, Biomedical Center, Uppsala University, Box 579, SE-75123 Uppsala, Sweden
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46
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Quaglia MG, Fanali S, Barbato F, Donati E. Micellar electrokinetic chromatography for determination of drug partition in phospholipids. ACTA ACUST UNITED AC 2005; 60:77-83. [PMID: 15652373 DOI: 10.1016/j.farmac.2004.10.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2004] [Accepted: 10/18/2004] [Indexed: 11/16/2022]
Abstract
The lipophilicity of pipemidic, nalidixic and oxolinic acids was determined by forming phospholipidic micelles directly in an electrophoretic capillary. Phosphatidylcholine derivatives, namely L-alpha-dilauroyl phosphatidylcholine (DLPC) or L-alpha-dimiristoyl phosphatidylcholine (DMPC), were added in the run buffer (50 mM phosphate buffer at pH 7.4). To obtain a mixed micelle, phospholipidic derivatives and sodium cholate were together added in the run buffer. Considering the increasing of migration time when phosphatidylcholine derivative is added in the run buffer, Ks can be determined and then quinolones lipophilicity.
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Affiliation(s)
- M G Quaglia
- Dipartimento Studi Farmaceutici, Università degli Studi La Sapienza di Roma, P.le A. Moro 5-00185 Roma, Italy.
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Ohno M, Ikehara T, Nara T, Kamo N, Miyauchi S. The elution profile of immobilized liposome chromatography: determination of association and dissociation rate constants. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2004; 1665:167-76. [PMID: 15471582 DOI: 10.1016/j.bbamem.2004.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2004] [Revised: 07/27/2004] [Accepted: 07/29/2004] [Indexed: 11/16/2022]
Abstract
The interaction of lipophilic cations, tetraphenylphosphonium and triphenylphosphonium homologues with liposomes was investigated using immobilized liposome chromatography (ILC). Large unilamellar liposomes with a mean diameter of 100 nm were stably immobilized in chromatographic gel beads by avidin-biotin. The distribution coefficient calculated from (Ve-V0)/Vs (Ve, retention volume; V0, the void volume; Vs, the stationary phase volume) was found to be independent of flow rate, injection amount and gel bed volume, which is consistent with chromatograph theory. The relationship between the bandwidth and solvent flow rate did not follow band-broadening theories reported thus far. We hypothesized that the solvent might be forced to produce large eddies, spirals or turbulent flow due to the presence of liposomes fixed in the gel. Therefore, we developed a new theory for ILC elution: The column is composed of a number of thin disks containing liposomes and solution, and within each disk the solution is well mixed. This theory accounts for our results, and we were able to use it to estimate the rate constants of association and dissociation of the phosphonium to/from liposomes.
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Affiliation(s)
- Masako Ohno
- Laboratory of Biophysical Chemistry, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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48
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Wiedmer SK, Riekkola ML, Jussila MS. Phospholipids and liposomes in liquid chromatographic and capillary electromigration techniques. Trends Analyt Chem 2004. [DOI: 10.1016/j.trac.2004.03.001] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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49
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Mälkiä A, Murtomäki L, Urtti A, Kontturi K. Drug permeation in biomembranes. Eur J Pharm Sci 2004; 23:13-47. [PMID: 15324921 DOI: 10.1016/j.ejps.2004.05.009] [Citation(s) in RCA: 134] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2003] [Revised: 05/13/2004] [Accepted: 05/24/2004] [Indexed: 11/21/2022]
Abstract
In the past decades, it has become increasingly apparent that in addition to therapeutic effect, drugs need to exhibit favourable absorption, distribution, metabolism and excretion (ADME) characteristics to produce a desirable response in vivo. As the recent progress in drug discovery technology enables rapid synthesis of vast numbers of potential drug candidates, robust methods are required for the effective screening of compounds synthesized within such programs, so that compounds with poor pharmacokinetic properties can be rejected at an early stage of drug development. Furthermore, a viable in silico method would save resources by enabling virtual screening of drug candidates already prior to synthesis. This review gives a general overview of the approaches aimed at predicting biological permeation, one of the cornerstones behind the ADME behaviour of drugs. The most important experimental and computational models are reviewed. Physicochemical factors underlying the permeation process are discussed.
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Affiliation(s)
- Annika Mälkiä
- Laboratory of Physical Chemistry and Electrochemistry, Helsinki University of Technology, P.O. Box 6100, FIN-02015 HUT, Finland
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50
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Escuder-Gilabert L, Martínez-Pla JJ, Sagrado S, Villanueva-Camañas RM, Medina-Hernández MJ. Biopartitioning micellar separation methods: modelling drug absorption. J Chromatogr B Analyt Technol Biomed Life Sci 2004; 797:21-35. [PMID: 14630141 DOI: 10.1016/s1570-0232(03)00606-8] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The search for new pharmacologically active compounds in drug discovery programmes often neglects biopharmaceutical properties as drug absorption. As a result, poor biopharmaceutical characteristics constitute a major reason for the low success rate for candidates in clinical development. Since the cost of drug development is many times larger than the cost of drug discovery, predictive methodologies aiding the selection of bioavailable drug candidates are of profound significance. This paper has been focussed on recent developments and applications of chromatographic systems, particularly those systems based on amphiphilic structures, in the frame of alternative approaches for estimating the transport properties of new drugs. The aim of this review is to take a critical look at the separations methods proposed for describing and predicting drug passive permeability across gastrointestinal tract and the skin.
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Affiliation(s)
- L Escuder-Gilabert
- Departamento de Química Analítica, Facultad de Farmacia, Universitat de València, C/Vicente Andrés Estellés s/n, E-46100 Burjassot, Valencia, Spain
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