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Alkafaas SS, Abdallah AM, Hassan MH, Hussien AM, Elkafas SS, Loutfy SA, Mikhail A, Murad OG, Elsalahaty MI, Hessien M, Elshazli RM, Alsaeed FA, Ahmed AE, Kamal HK, Hafez W, El-Saadony MT, El-Tarabily KA, Ghosh S. Molecular docking as a tool for the discovery of novel insight about the role of acid sphingomyelinase inhibitors in SARS- CoV-2 infectivity. BMC Public Health 2024; 24:395. [PMID: 38321448 PMCID: PMC10848368 DOI: 10.1186/s12889-024-17747-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/11/2024] [Indexed: 02/08/2024] Open
Abstract
Recently, COVID-19, caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and its variants, caused > 6 million deaths. Symptoms included respiratory strain and complications, leading to severe pneumonia. SARS-CoV-2 attaches to the ACE-2 receptor of the host cell membrane to enter. Targeting the SARS-CoV-2 entry may effectively inhibit infection. Acid sphingomyelinase (ASMase) is a lysosomal protein that catalyzes the conversion of sphingolipid (sphingomyelin) to ceramide. Ceramide molecules aggregate/assemble on the plasma membrane to form "platforms" that facilitate the viral intake into the cell. Impairing the ASMase activity will eventually disrupt viral entry into the cell. In this review, we identified the metabolism of sphingolipids, sphingolipids' role in cell signal transduction cascades, and viral infection mechanisms. Also, we outlined ASMase structure and underlying mechanisms inhibiting viral entry 40 with the aid of inhibitors of acid sphingomyelinase (FIASMAs). In silico molecular docking analyses of FIASMAs with inhibitors revealed that dilazep (S = - 12.58 kcal/mol), emetine (S = - 11.65 kcal/mol), pimozide (S = - 11.29 kcal/mol), carvedilol (S = - 11.28 kcal/mol), mebeverine (S = - 11.14 kcal/mol), cepharanthine (S = - 11.06 kcal/mol), hydroxyzin (S = - 10.96 kcal/mol), astemizole (S = - 10.81 kcal/mol), sertindole (S = - 10.55 kcal/mol), and bepridil (S = - 10.47 kcal/mol) have higher inhibition activity than the candidate drug amiodarone (S = - 10.43 kcal/mol), making them better options for inhibition.
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Affiliation(s)
- Samar Sami Alkafaas
- Molecular Cell Biology Unit, Division of Biochemistry, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Abanoub Mosaad Abdallah
- Narcotic Research Department, National Center for Social and Criminological Research (NCSCR), Giza, 11561, Egypt
| | - Mai H Hassan
- Molecular Cell Biology Unit, Division of Biochemistry, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Aya Misbah Hussien
- Biotechnology department at Institute of Graduate Studies and Research, Alexandria University, Alexandria, Egypt
| | - Sara Samy Elkafas
- Production Engineering and Mechanical Design Department, Faculty of Engineering, Menofia University, Menofia, Egypt
- Faculty of Control System and Robotics, ITMO University, Saint-Petersburg, 197101, Russia
| | - Samah A Loutfy
- Virology and Immunology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
- Nanotechnology Research Center, British University, Cairo, Egypt
| | - Abanoub Mikhail
- Department of Physics, Faculty of Science, Minia University, Minia, Egypt
- Faculty of Physics, ITMO University, Saint Petersburg, Russia
| | - Omnia G Murad
- Division of Biochemistry, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Mohamed I Elsalahaty
- Division of Biochemistry, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Mohamed Hessien
- Molecular Cell Biology Unit, Division of Biochemistry, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Rami M Elshazli
- Biochemistry and Molecular Genetics Unit, Department of Basic Sciences, Faculty of Physical Therapy, Horus University - Egypt, New Damietta, 34517, Egypt
| | - Fatimah A Alsaeed
- Department of Biology, College of Science, King Khalid University, Muhayl, Saudi Arabia
| | - Ahmed Ezzat Ahmed
- Biology Department, College of Science, King Khalid University, Abha, 61413, Saudi Arabia
| | - Hani K Kamal
- Anatomy and Histology, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Wael Hafez
- NMC Royal Hospital, 16Th Street, 35233, Khalifa City, Abu Dhabi, United Arab Emirates
- Medical Research Division, Department of Internal Medicine, The National Research Centre, 12622, 33 El Buhouth St, Ad Doqi, Dokki, Cairo Governorate, Egypt
| | - Mohamed T El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, 44511, Egypt
| | - Khaled A El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain, 15551, United Arab Emirates
| | - Soumya Ghosh
- Department of Genetics, Faculty of Natural and Agricultural Sciences, University of the Free State, Bloemfontein, 9301, South Africa
- Natural & Medical Science Research Center, University of Nizwa, Nizwa, Oman
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Interaction of drugs with lipid raft membrane domains as a possible target. Drug Target Insights 2021; 14:34-47. [PMID: 33510571 PMCID: PMC7832984 DOI: 10.33393/dti.2020.2185] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/11/2020] [Indexed: 01/23/2023] Open
Abstract
Introduction Plasma membranes are not the homogeneous bilayers of uniformly distributed lipids but the lipid complex with laterally separated lipid raft membrane domains, which provide receptor, ion channel and enzyme proteins with a platform. The aim of this article is to review the mechanistic interaction of drugs with membrane lipid rafts and address the question whether drugs induce physicochemical changes in raft-constituting and raft-surrounding membranes. Methods Literature searches of PubMed/MEDLINE and Google Scholar databases from 2000 to 2020 were conducted to include articles published in English in internationally recognized journals. Collected articles were independently reviewed by title, abstract and text for relevance. Results The literature search indicated that pharmacologically diverse drugs interact with raft model membranes and cellular membrane lipid rafts. They could physicochemically modify functional protein-localizing membrane lipid rafts and the membranes surrounding such domains, affecting the raft organizational integrity with the resultant exhibition of pharmacological activity. Raft-acting drugs were characterized as ones to decrease membrane fluidity, induce liquid-ordered phase or order plasma membranes, leading to lipid raft formation; and ones to increase membrane fluidity, induce liquid-disordered phase or reduce phase transition temperature, leading to lipid raft disruption. Conclusion Targeting lipid raft membrane domains would open a new way for drug design and development. Since angiotensin-converting enzyme 2 receptors which are a cell-specific target of and responsible for the cellular entry of novel coronavirus are localized in lipid rafts, agents that specifically disrupt the relevant rafts may be a drug against coronavirus disease 2019.
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Khondker A, Bider RC, Passos-Gastaldo I, Wright GD, Rheinstädter MC. Membrane interactions of non-membrane targeting antibiotics: The case of aminoglycosides, macrolides, and fluoroquinolones. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1863:183448. [PMID: 32828850 DOI: 10.1016/j.bbamem.2020.183448] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 08/09/2020] [Accepted: 08/11/2020] [Indexed: 11/25/2022]
Abstract
Numerous antibiotics are known to target intracellular pathways, such as protein translation or DNA replication. Membrane transporters typically regulate drug uptake; however, little is known about direct interactions between these antibiotics and the cell membranes. Here, we studied the interactions between different aminoglycosides (kanamycin, gentamicin, streptomycin, neomycin), macrolides (azithromycin, clarithromycin, erythromycin), and fluoroquinolones (ciprofloxacin, levofloxacin) with bacterial membrane mimics to determine drug partitioning and potential drug-induced membrane disruption. The antibiotics' exact location in the bilayers and their effect on membrane thickness and fluidity were determined from high-resolution X-ray diffraction. While the antibiotics did not change membrane thickness at low (1:100 drug/lipid) or high (1:10 drug/lipid) concentrations, they were found to increase membrane disorder in a dose-dependent manner. However, no membrane damage, such as membrane disruption or pore formation, was observed for any of the antibiotics. To note, all antibiotics partitioned into the lipid head groups, while macrolides and fluoroquinolones also partitioned into the bilayer core. The results suggest that the bacterial membrane is relatively inert in the direct mechanisms of actions of these antibiotics.
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Affiliation(s)
- Adree Khondker
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada; Origins Institute, McMaster University, Hamilton, Ontario, Canada; Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Renée-Claude Bider
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada; Origins Institute, McMaster University, Hamilton, Ontario, Canada
| | - Isabella Passos-Gastaldo
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada; Origins Institute, McMaster University, Hamilton, Ontario, Canada; Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada
| | - Gerard D Wright
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario, Canada; Michael G. DeGroote Institute for Infectious Disease Research, McMaster University, Hamilton, Ontario, Canada
| | - Maikel C Rheinstädter
- Department of Physics and Astronomy, McMaster University, Hamilton, Ontario, Canada; Origins Institute, McMaster University, Hamilton, Ontario, Canada.
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Pinheiro M, Magalhães J, Reis S. Antibiotic interactions using liposomes as model lipid membranes. Chem Phys Lipids 2019; 222:36-46. [DOI: 10.1016/j.chemphyslip.2019.05.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 05/07/2019] [Accepted: 05/08/2019] [Indexed: 02/02/2023]
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Ramadurai S, Sarangi NK, Maher S, MacConnell N, Bond AM, McDaid D, Flynn D, Keyes TE. Microcavity-Supported Lipid Bilayers; Evaluation of Drug-Lipid Membrane Interactions by Electrochemical Impedance and Fluorescence Correlation Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:8095-8109. [PMID: 31120755 DOI: 10.1021/acs.langmuir.9b01028] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Many drugs have intracellular or membrane-associated targets, thus understanding their interaction with the cell membrane is of value in drug development. Cell-free tools used to predict membrane interactions should replicate the molecular organization of the membrane. Microcavity array-supported lipid bilayer (MSLB) platforms are versatile biophysical models of the cell membrane that combine liposome-like membrane fluidity with stability and addressability. We used an MSLB herein to interrogate drug-membrane interactions across seven drugs from different classes, including nonsteroidal anti-inflammatories: ibuprofen (Ibu) and diclofenac (Dic); antibiotics: rifampicin (Rif), levofloxacin (Levo), and pefloxacin (Pef); and bisphosphonates: alendronate (Ale) and clodronate (Clo). Fluorescence lifetime correlation spectroscopy (FLCS) and electrochemical impedance spectroscopy (EIS) were used to evaluate the impact of drug on 1,2-dioleyl- sn-glycerophosphocholine and binary bilayers over physiologically relevant drug concentrations. Although FLCS data revealed Ibu, Levo, Pef, Ale, and Clo had no impact on lipid lateral mobility, EIS, which is more sensitive to membrane structural change, indicated modest but significant decreases to membrane resistivity consistent with adsorption but weak penetration of drugs at the membrane. Ale and Clo, evaluated at pH 5.25, did not impact the impedance of the membrane except at concentrations exceeding 4 mM. Conversely, Dic and Rif dramatically altered bilayer fluidity, suggesting their translocation through the bilayer, and EIS data showed that resistivity of the membrane decreased substantially with increasing drug concentration. Capacitance changes to the bilayer in most cases were insignificant. Using a Langmuir-Freundlich model to fit the EIS data, we propose Rsat as an empirical value that reflects permeation. Overall, the data indicate that Ibu, Levo, and Pef adsorb at the interface of the lipid membrane but Dic and Rif interact strongly, permeating the membrane core modifying the water/ion permeability of the bilayer structure. These observations are discussed in the context of previously reported data on drug permeability and log P.
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Affiliation(s)
- Sivaramakrishnan Ramadurai
- School of Chemical Sciences and National Centre for Sensor Research , Dublin City University , Dublin 9 , Ireland
| | - Nirod Kumar Sarangi
- School of Chemical Sciences and National Centre for Sensor Research , Dublin City University , Dublin 9 , Ireland
| | - Sean Maher
- School of Chemical Sciences and National Centre for Sensor Research , Dublin City University , Dublin 9 , Ireland
| | - Nicola MacConnell
- School of Chemical Sciences and National Centre for Sensor Research , Dublin City University , Dublin 9 , Ireland
| | - Alan M Bond
- School of Chemistry , Monash University , Clayton , Victoria 3800 , Australia
| | | | | | - Tia E Keyes
- School of Chemical Sciences and National Centre for Sensor Research , Dublin City University , Dublin 9 , Ireland
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Kaddah S, Khreich N, Kaddah F, Khrouz L, Charcosset C, Greige-Gerges H. Corticoids modulate liposome membrane fluidity and permeability depending on membrane composition and experimental protocol design. Biochimie 2018; 153:33-45. [PMID: 29935242 DOI: 10.1016/j.biochi.2018.06.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 06/15/2018] [Indexed: 01/22/2023]
Abstract
Given that literature data may give inconsistent results on the effect of a drug on lipid membrane properties, this work aims to investigate the impact of the liposome composition and experimental protocol design on glucocorticoids (GRs: cortisol, cortisone, fludrocortisone acetate, methylprednisolone, prednisolone and prednisone)-modulating membrane fluidity and permeability. GRs-loaded liposomes consisting of dipalmitoylphosphatidylcholine (DPPC) and cholesterol (CHOL) were prepared by reverse phase evaporation technique (REV) at DPPC:CHOL:GR molar ratios of 100:100:2.5, and 100:100:10. The formulations were characterized for their size and homogeneity, encapsulation efficiency and loading rates of GRs, incorporation rates and loading rates of DPPC and CHOL. Changes in DPPC membrane fluidity (CHOL% 0, 10, 20, 30 and 100) after exposure to methylprednisolone were monitored by using 5- and 16-doxyl stearic acids (DSA) as spin probes. For permeability studies, the above-mentioned GRs-loaded liposomes and the preformed liposomes exposed to GRs (2.5 mol%) were compared for the leakage of an encapsulated fluorescent dye, sulforhodamine B (SRB), at 37 °C in buffer (pH 7.5) containing NaCl. The SRB release kinetics were analyzed by the Higuchi model for two release phases (from 0 to 10 h, and from 10 to 48 h). All formulations exhibited a monodispersed size distribution of liposomes with a mean particle value close to 0.4 μm, also the DPPC and CHOL were highly incorporated (>95%). High loading rate values of DPPC and CHOL were also obtained. Except for fludrocortisone acetate (51%) and prednisolone (77%), high loading rate values of GRs were obtained (>81%). Fluidity and permeability studies showed that the GR concentration, CHOL content, experimental protocol design including the period of incubation represent critical parameters to be considered in analyzing the effect of drugs on the membrane properties.
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Affiliation(s)
- Samar Kaddah
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, Lebanon; Laboratoire d'Automatique et de Génie des Procédés (LAGEP), Université Claude Bernard, Lyon 1, France
| | - Nathalie Khreich
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, Lebanon
| | - Fouad Kaddah
- École Supérieure d'ingénieurs de Beyrouth, Université Saint Joseph, Beyrouth, Mar Roukoz-Dekwaneh, Lebanon
| | - Lhoussain Khrouz
- Laboratoire de Chimie, École Normale Supérieure de Lyon (ENS), Université Claude Bernard, Lyon 1, France
| | - Catherine Charcosset
- Laboratoire d'Automatique et de Génie des Procédés (LAGEP), Université Claude Bernard, Lyon 1, France
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Lebanese University, Lebanon.
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Interaction of levofloxacin with lung surfactant at the air-water interface. Colloids Surf B Biointerfaces 2017; 158:689-696. [DOI: 10.1016/j.colsurfb.2017.07.066] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 06/30/2017] [Accepted: 07/26/2017] [Indexed: 11/22/2022]
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Varshney GK, Kintali SR, Gupta PK, Das K. A comparative study on the effect of Curcumin and Chlorin-p 6 on the transport of the LDS cation across a negatively charged POPG bilayer: Effect of pH. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 173:132-138. [PMID: 27619975 DOI: 10.1016/j.saa.2016.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 08/28/2016] [Accepted: 09/01/2016] [Indexed: 06/06/2023]
Abstract
We report the use of interface selective Second Harmonic generation technique to investigate the transport of the LDS cation across POPG liposomes in the pH range of 4.0 to 8.0 in the presence and absence of two amphiphilic drugs, Curcumin and Chlorin-p6 (Cp6). Our results show that bilayer permeability of liposomes is significantly affected by the presence of the drugs and pH of the medium as evidenced by significant changes in the transport kinetics of the LDS. Studies carried out in the pH range 4.0-8.0 show that while Cp6 significantly enhanced the transport of LDS at pH4.0, the transport of the cation was seen to increase with increasing pH, with maximum effect at pH7.4 for Curcumin. The pH dependent bilayer localization of both the drugs was investigated by conducting steady state FRET studies using DPH labeled lipids as donors. The FRET results and the relative population of the various ionic/nonionic species of the drugs at different pH suggest that distance dependent interaction between the various ionic species of the drugs and polar head groups of the lipid is responsible for the observed pH dependence enhancement of the drug induced membrane permeability. Another interesting observation was that the stability of Curcumin in presence of POPG liposomes was observed to degrade significantly near physiological pH (7.4 and 8.0). Although this degradation did not affect the liposome integrity, interestingly this was observed to enhance the transport of the LDS cation across the bilayer. That the degradation products of Curcumin are equally effective as the drug itself in enhancing the membrane permeability lends additional support to the current opinion that the bioactive degradation products of the drug may have a significant contribution to its observed pharmacological effects.
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Affiliation(s)
- G K Varshney
- Optical Spectroscopy & Diagnostic Lab, Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore, M.P. 452013, India
| | - S R Kintali
- Optical Spectroscopy & Diagnostic Lab, Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore, M.P. 452013, India
| | - P K Gupta
- Optical Spectroscopy & Diagnostic Lab, Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore, M.P. 452013, India
| | - K Das
- Optical Spectroscopy & Diagnostic Lab, Laser Bio-Medical Applications & Instrumentation Division, Raja Ramanna Center for Advanced Technology, Indore, M.P. 452013, India.
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dos Santos AG, Marquês JT, Carreira AC, Castro IR, Viana AS, Mingeot-Leclercq MP, de Almeida RFM, Silva LC. The molecular mechanism of Nystatin action is dependent on the membrane biophysical properties and lipid composition. Phys Chem Chem Phys 2017; 19:30078-30088. [DOI: 10.1039/c7cp05353c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nystatin-induced membrane permeabilization is related to its effects on membrane properties and organization.
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Affiliation(s)
- A. G. dos Santos
- iMed.ULisboa – Research Institute for Medicines
- Faculdade de Farmácia
- Universidade de Lisboa
- 1649-003 Lisboa
- Portugal
| | - J. T. Marquês
- CQB – Centre for Chemistry and Biochemistry, Faculdade de Ciências
- Universidade de Lisboa
- 1749-016 Lisboa
- Portugal
| | - A. C. Carreira
- iMed.ULisboa – Research Institute for Medicines
- Faculdade de Farmácia
- Universidade de Lisboa
- 1649-003 Lisboa
- Portugal
| | - I. R. Castro
- iMed.ULisboa – Research Institute for Medicines
- Faculdade de Farmácia
- Universidade de Lisboa
- 1649-003 Lisboa
- Portugal
| | - A. S. Viana
- CQB – Centre for Chemistry and Biochemistry, Faculdade de Ciências
- Universidade de Lisboa
- 1749-016 Lisboa
- Portugal
| | - M.-P. Mingeot-Leclercq
- FACM/LDRI-UCL – Cellular and Molecular Pharmacology unit of the Louvain Drug Research Institute
- Université Catholique de Louvain
- B-1200 Bruxelles
- Belgium
| | - R. F. M. de Almeida
- CQB – Centre for Chemistry and Biochemistry, Faculdade de Ciências
- Universidade de Lisboa
- 1749-016 Lisboa
- Portugal
| | - L. C. Silva
- iMed.ULisboa – Research Institute for Medicines
- Faculdade de Farmácia
- Universidade de Lisboa
- 1649-003 Lisboa
- Portugal
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Beloqui A, Alhouayek M, Carradori D, Vanvarenberg K, Muccioli GG, Cani PD, Préat V. A Mechanistic Study on Nanoparticle-Mediated Glucagon-Like Peptide-1 (GLP-1) Secretion from Enteroendocrine L Cells. Mol Pharm 2016; 13:4222-4230. [DOI: 10.1021/acs.molpharmaceut.6b00871] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ana Beloqui
- Université catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, 1200 Brussels, Belgium
| | - Mireille Alhouayek
- Université catholique de Louvain, Louvain Drug Research
Institute, Bioanalysis and Pharmacology of Bioactive Lipids Group, 1200 Brussels, Belgium
| | - Dario Carradori
- Université catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, 1200 Brussels, Belgium
| | - Kevin Vanvarenberg
- Université catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, 1200 Brussels, Belgium
| | - Giulio G. Muccioli
- Université catholique de Louvain, Louvain Drug Research
Institute, Bioanalysis and Pharmacology of Bioactive Lipids Group, 1200 Brussels, Belgium
| | - Patrice D. Cani
- Université catholique de Louvain, WELBIO (Walloon Excellence
in Life sciences and BIOtechnology), Louvain Drug Research Institute,
Metabolism and Nutrition Group, 1200 Brussels, Belgium
| | - Véronique Préat
- Université catholique de Louvain, Louvain Drug Research Institute, Advanced Drug Delivery and Biomaterials, 1200 Brussels, Belgium
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Membrane Interactions of Phytochemicals as Their Molecular Mechanism Applicable to the Discovery of Drug Leads from Plants. Molecules 2015; 20:18923-66. [PMID: 26501254 PMCID: PMC6332185 DOI: 10.3390/molecules201018923] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 10/11/2015] [Accepted: 10/14/2015] [Indexed: 02/02/2023] Open
Abstract
In addition to interacting with functional proteins such as receptors, ion channels, and enzymes, a variety of drugs mechanistically act on membrane lipids to change the physicochemical properties of biomembranes as reported for anesthetic, adrenergic, cholinergic, non-steroidal anti-inflammatory, analgesic, antitumor, antiplatelet, antimicrobial, and antioxidant drugs. As well as these membrane-acting drugs, bioactive plant components, phytochemicals, with amphiphilic or hydrophobic structures, are presumed to interact with biological membranes and biomimetic membranes prepared with phospholipids and cholesterol, resulting in the modification of membrane fluidity, microviscosity, order, elasticity, and permeability with the potencies being consistent with their pharmacological effects. A novel mechanistic point of view of phytochemicals would lead to a better understanding of their bioactivities, an insight into their medicinal benefits, and a strategic implication for discovering drug leads from plants. This article reviews the membrane interactions of different classes of phytochemicals by highlighting their induced changes in membrane property. The phytochemicals to be reviewed include membrane-interactive flavonoids, terpenoids, stilbenoids, capsaicinoids, phloroglucinols, naphthodianthrones, organosulfur compounds, alkaloids, anthraquinonoids, ginsenosides, pentacyclic triterpene acids, and curcuminoids. The membrane interaction’s applicability to the discovery of phytochemical drug leads is also discussed while referring to previous screening and isolating studies.
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Saini R, Varshney G, Dube A, Gupta P, Das K. A comparative study on the effect of Curcumin and Chlorin-p6 on the diffusion of two organic cations across a negatively charged lipid bilayer probed by second harmonic spectroscopy. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.05.056] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Peters GH, Werge M, Elf-Lind MN, Madsen JJ, Velardez GF, Westh P. Interaction of neurotransmitters with a phospholipid bilayer: a molecular dynamics study. Chem Phys Lipids 2014; 184:7-17. [PMID: 25159594 DOI: 10.1016/j.chemphyslip.2014.08.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 08/14/2014] [Accepted: 08/22/2014] [Indexed: 11/15/2022]
Abstract
We have performed a series of molecular dynamics simulations to study the interactions between the neurotransmitters (NTs) γ-aminobutyrate (GABA), glycine (GLY), acetylcholine (ACH) and glutamate (GLU) as well as the amidated/acetylated γ-aminobutyrate (GABA(neu)) and the osmolyte molecule glycerol (GOL) with a dipalmitoylphosphatidylcholine (DPPC) bilayer. In agreement with previously published experimental data, we found the lowest membrane affinity for the charged molecules and a moderate affinity for zwitterionic and polar molecules. The affinity can be ranked as follows: ACH-GLU<<GABA<GLY<<GABA(neu)<<GOL. The latter three penetrated the bilayer at most with the deepest location being close to the glycerol backbone of the phospholipids. Even at that position, these solutes were noticeably hydrated and carried ∼30-80% of the bulk water along. The mobility of hydration water at the solute is also affected by the penetration into the bilayer. Two time scales of exchanging water molecules could be determined. In the bulk phase, the hydration layer contains ∼20% slow exchanging water molecules which increases 2-3 times as the solutes entered the bilayer. Our results indicate that there is no intermediate exchange of slow moving water molecules from the solutes to the lipid atoms and vice versa. Instead, the exchange relies on the reservoir of unbounded ("free") water molecules in the interfacial bilayer region. Results from the equilibrium simulations are in good agreement with the results from umbrella sampling simulations, which were conducted for the four naturally occurring NTs. Free energy profiles for ACH and GLU show a minimum of ∼2-3 kJ/mol close to the bilayer interface, while for GABA and GLY, a minimum of respectively ∼2 kJ/mol and ∼5 kJ/mol is observed when these NTs are located in the vicinity of the lipid glycerol backbone. The most important interaction of NTs with the bilayer is the charged amino group of NTs with the lipid phosphate group.
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Affiliation(s)
- Günther H Peters
- Department of Chemistry, Technical University of Denmark, Kongens Lyngby 2800, Denmark.
| | - Mikkel Werge
- Department of Chemistry, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | | | - Jesper J Madsen
- Department of Chemistry, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Gustavo F Velardez
- Department of Chemistry, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Peter Westh
- NSM, Research Unit for Functional Biomaterials, Roskilde University, Roskilde 4000, Denmark.
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Bahrami F, Janahmadi M. Antibiotic supplements affect electrophysiological properties and excitability of rat hippocampal pyramidal neurons in primary culture. IRANIAN BIOMEDICAL JOURNAL 2014; 17:101-6. [PMID: 23567852 DOI: 10.6091/ibj.11242.2013] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
INTRODUCTION Antibiotic supplements are regularly used in neuronal culture media to control contamination; however, they can interfere with the neuronal excitability and affect electrophysiological properties. Therefore, in this study, the effect of penicillin/streptomycin supplements on the spontaneous electrophysiological activity of hippocampal pyramidal neurons was examined. METHODS Electrophysiological whole-cell patch-clamp recordings from rat hippocampal pyramidal cells in primary culture were performed to investigate the effects of antibiotic supplements on the intrinsic excitability of cultured cells. RESULTS The present findings indicated that presence of antibiotic supplements (penicillin/streptomycin) in the culture medium altered the intrinsic electrical activity of hippocampal pyramidal neurons in primary culture. These alterations included: 1) depolarized resting membrane potential; 2) a significant enhancement in the after-hyperpolarization amplitude; 3) a significant increase in the area under the action potential and in the decay and rise time of the action potential; 4) a significant broadening of action potential and 5) a significant reduction in the firing frequency. CONCLUSION These findings suggest that addition of antibiotic supplements to culture media influences the neuronal excitability and alters the electrophysiological properties of cultured neurons, possibly through changing the ionic conductance underlying neuronal excitability.
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Affiliation(s)
- Farideh Bahrami
- Neuroscience Research Center and Dept. of Physiology, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Mahyar Janahmadi
- Neuroscience Research Centre and Dept. of Physiology, Medical School, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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15
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Phase Separation in Phosphatidylcholine Membrane Caused by the Presence of a Pyrimidine Analogue of Fluphenazine with High Anti-Multidrug-Resistance Activity. J Phys Chem B 2014; 118:3605-15. [DOI: 10.1021/jp410882r] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Habib L, Jraij A, Khreich N, Fessi H, Charcosset C, Greige-Gerges H. Morphological and physicochemical characterization of liposomes loading cucurbitacin E, an anti-proliferative natural tetracyclic triterpene. Chem Phys Lipids 2013; 177:64-70. [PMID: 24291009 DOI: 10.1016/j.chemphyslip.2013.11.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 11/19/2013] [Accepted: 11/20/2013] [Indexed: 11/18/2022]
Abstract
Cucurbitacin E (Cuc E), an oxygenated triterpene molecule, has demonstrated anti-proliferative effect on various cancer cells. Here, we examined the effect of Cuc E on the membrane morphology and properties using differential scanning calorimetry, transmission electron microscopy and atomic force microscopy techniques. Dipalmitoylphosphatidylcholine vesicles were prepared by the thin film hydration method in the absence and presence of Cuc E at molar ratios 100:12 and 100:20. The loading efficiency of Cuc E was found to be higher than 98% upon HPLC analysis. The thermodynamic parameters suggest that Cuc E does not penetrate into the bilayers and interacts with the polar/apolar interface of the lipid membranes. Blank and Cuc E loaded liposomes prepared from a mixture of DPPC/DPPE/DPPG/Cho were imaged by TEM and AFM. Images obtained by TEM revealed unilamellar liposomes for blank and Cuc E loaded liposomes. AFM images showed that the size and the height of Cuc E loaded liposomes were respectively smaller and higher than blank ones. Results suggest that Cuc E produces modifications in the lipid membrane structures.
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Affiliation(s)
- Lamice Habib
- Bioactive Molecules Research Group, Doctoral School of Sciences and Technologies, Department of Chemistry and Biochemistry, Faculty of Sciences-2, Lebanese University, Lebanon; Laboratoire d'Automatique et de Génie des Procédés (LAGEP), UMR 5007, CNRS, CPE, 43 bd du 11 Novembre, 691622 Villeurbanne Cedex, France
| | - Alia Jraij
- Bioactive Molecules Research Group, Doctoral School of Sciences and Technologies, Department of Chemistry and Biochemistry, Faculty of Sciences-2, Lebanese University, Lebanon
| | - Nathalie Khreich
- Bioactive Molecules Research Group, Doctoral School of Sciences and Technologies, Department of Chemistry and Biochemistry, Faculty of Sciences-2, Lebanese University, Lebanon
| | - Hatem Fessi
- Laboratoire d'Automatique et de Génie des Procédés (LAGEP), UMR 5007, CNRS, CPE, 43 bd du 11 Novembre, 691622 Villeurbanne Cedex, France
| | - Catherine Charcosset
- Laboratoire d'Automatique et de Génie des Procédés (LAGEP), UMR 5007, CNRS, CPE, 43 bd du 11 Novembre, 691622 Villeurbanne Cedex, France
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Group, Doctoral School of Sciences and Technologies, Department of Chemistry and Biochemistry, Faculty of Sciences-2, Lebanese University, Lebanon.
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17
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Guinan T, Godefroy C, Lautrédou N, Pace S, Milhiet PE, Voelcker N, Cunin F. Interaction of antibiotics with lipid vesicles on thin film porous silicon using reflectance interferometric Fourier transform spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:10279-86. [PMID: 23844993 DOI: 10.1021/la401804e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
The ability to observe interactions of drugs with cell membranes is an important area in pharmaceutical research. However, these processes are often difficult to understand due to the dynamic nature of cell membranes. Therefore, artificial systems composed of lipids have been used to study membrane properties and their interaction with drugs. Here, lipid vesicle adsorption, rupture, and formation of planar lipid bilayers induced by various antibiotics (surfactin, azithromycin, gramicidin, melittin and ciprofloxacin) and the detergent dodecyl-b-D-thiomaltoside (DOTM) was studied using reflective interferometric Fourier transform spectroscopy (RIFTS) on an oxidized porous silicon (pSi) surface as a transducer. The pSi transducer surfaces are prepared as thin films of 3 μm thickness with pore dimensions of a few nanometers in diameter by electrochemical etching of crystalline silicon followed by passivation with a thermal oxide layer. Furthermore, the sensitivity of RIFTS was investigated using three different concentrations of surfactin. Complementary techniques including atomic force microscopy, fluorescence recovery after photobleaching, and fluorescence microscopy were used to validate the RIFTS-based method and confirm adsorption and consequent rupture of vesicles to form a phospholipid bilayer upon the addition of antibiotics. The method provides a sensitive and real-time approach to monitor the antibiotic-induced transition of lipid vesicles to phospholipid bilayers.
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Affiliation(s)
- Taryn Guinan
- Mawson Institute, University of South Australia, Adelaide, Australia
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18
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Habib L, Khreich N, Jraij A, Abbas S, Magdalou J, Charcosset C, Greige-Gerges H. Preparation and characterization of liposomes incorporating cucurbitacin E, a natural cytotoxic triterpene. Int J Pharm 2013; 448:313-9. [DOI: 10.1016/j.ijpharm.2013.03.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 03/12/2013] [Accepted: 03/13/2013] [Indexed: 11/27/2022]
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19
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Wallace SJ, Nation RL, Li J, Boyd BJ. Physicochemical aspects of the coformulation of colistin and azithromycin using liposomes for combination antibiotic therapies. J Pharm Sci 2013; 102:1578-87. [PMID: 23526658 DOI: 10.1002/jps.23508] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Revised: 01/17/2013] [Accepted: 01/31/2013] [Indexed: 11/07/2022]
Abstract
Remote loading of azithromycin into liposomes, and subsequent release behavior in the presence of colistin, has been investigated with a view to understand the potential of liposomes to enable the coformulation of these two antibiotics for application in inhalation therapy. Azithromycin was successfully encapsulated into liposomes by remote loading (encapsulation efficiency > 98%). Slow release of azithromycin was achieved in the presence of cholesterol in a concentration-dependent manner, with a 4:1 mol ratio of phospholipid-cholesterol releasing 22% azithromycin in 24 h, whereas a 2:1 mol ratio released only 4.9% of azithromycin in 24 h. Addition of colistin to the formulation with increasing concentration did not change the loading behavior, but accelerated drug release, increasing the percentage of released azithromycin from 4.9% to 30% over 24 h. The permeabilizing ability of colistin on liposomes is consistent with its permeabilizing effect on bacterial cells. This behavior opens opportunities to tailor the release rate of drugs coformulated with colistin using liposomes as the carrier.
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Affiliation(s)
- Stephanie J Wallace
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University (Parkville Campus), Parkville Victoria 3052, Australia
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20
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Swain J, Mohapatra M, Borkar SR, Aidhen IS, Mishra AK. Study of aqueous phase aggregation of FTY720 (fingolimod hydrochloride) and its effect on DMPC liposomes using fluorescent molecular probes. Phys Chem Chem Phys 2013; 15:17962-70. [DOI: 10.1039/c3cp53148a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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21
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Spyratou E, Makropoulou M, Mourelatou E, Demetzos C. Biophotonic techniques for manipulation and characterization of drug delivery nanosystems in cancer therapy. Cancer Lett 2012; 327:111-22. [DOI: 10.1016/j.canlet.2011.12.039] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 12/21/2011] [Accepted: 12/24/2011] [Indexed: 12/20/2022]
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22
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Anti-inflammatory mechanism of action of azithromycin in LPS-stimulated J774A.1 cells. Pharmacol Res 2012; 66:357-62. [DOI: 10.1016/j.phrs.2012.06.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 06/20/2012] [Accepted: 06/20/2012] [Indexed: 11/24/2022]
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23
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Impairment of lysosomal functions by azithromycin and chloroquine contributes to anti-inflammatory phenotype. Cell Immunol 2012; 279:78-86. [PMID: 23099154 DOI: 10.1016/j.cellimm.2012.09.007] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 09/11/2012] [Accepted: 09/12/2012] [Indexed: 11/23/2022]
Abstract
Azithromycin and chloroquine have been shown to exhibit anti-inflammatory activities in a number of cellular systems, but the mechanisms of these activities have still not been clarified unequivocally. Since both drugs are cationic, accumulate in acidic cellular compartments and bind to phospholipids with a consequent increase in lysosomal pH and induce phospholipidosis, we examined the relevance of these common properties to their anti-inflammatory activities. We compared also these effects with effects of concanamycin A, compound which inhibits acidification of lysosomes. All three compounds increased lysosomal pH, accumulation of autophagic vacuoles and ubiquitinated proteins and impaired recycling of TLR4 receptor with consequences in downstream signaling in LPS-stimulated J774A.1 cells. Azithromycin and chloroquine additionally inhibited arachidonic acid release and prostaglandin E2 synthesis. Therefore, impairment of lysosomal functions by azithromycin and chloroquine deregulate TLR4 recycling and signaling and phospholipases activation and lead to anti-inflammatory phenotype in LPS-stimulated J774A.1 cells.
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Nujić K, Smith M, Lee M, Belamarić D, Tomašković L, Alihodžić S, Malnar I, Polančec D, Schneider K, Haber VE. Valosin containing protein (VCP) interacts with macrolide antibiotics without mediating their anti-inflammatory activities. Eur J Pharmacol 2012; 677:163-72. [DOI: 10.1016/j.ejphar.2011.12.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Revised: 12/08/2011] [Accepted: 12/09/2011] [Indexed: 10/14/2022]
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25
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Peetla C, Stine A, Labhasetwar V. Biophysical interactions with model lipid membranes: applications in drug discovery and drug delivery. Mol Pharm 2009; 6:1264-76. [PMID: 19432455 DOI: 10.1021/mp9000662] [Citation(s) in RCA: 336] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The transport of drugs or drug delivery systems across the cell membrane is a complex biological process, often difficult to understand because of its dynamic nature. In this regard, model lipid membranes, which mimic many aspects of cell-membrane lipids, have been very useful in helping investigators to discern the roles of lipids in cellular interactions. One can use drug-lipid interactions to predict pharmacokinetic properties of drugs, such as their transport, biodistribution, accumulation, and hence efficacy. These interactions can also be used to study the mechanisms of transport, based on the structure and hydrophilicity/hydrophobicity of drug molecules. In recent years, model lipid membranes have also been explored to understand their mechanisms of interactions with peptides, polymers, and nanocarriers. These interaction studies can be used to design and develop efficient drug delivery systems. Changes in the lipid composition of cells and tissue in certain disease conditions may alter biophysical interactions, which could be explored to develop target-specific drugs and drug delivery systems. In this review, we discuss different model membranes, drug-lipid interactions and their significance, studies of model membrane interactions with nanocarriers, and how biophysical interaction studies with lipid model membranes could play an important role in drug discovery and drug delivery.
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Affiliation(s)
- Chiranjeevi Peetla
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA
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26
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Oliynyk I, Varelogianni G, Schalling M, Asplund MS, Roomans GM, Johannesson M. Azithromycin increases chloride efflux from cystic fibrosis airway epithelial cells. Exp Lung Res 2009; 35:210-21. [PMID: 19337904 DOI: 10.1080/01902140802534967] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
It was investigated whether azithromycin (AZM) stimulates chloride (Cl-) efflux from cystic fibrosis (CF) and non-CF airway epithelial cells, possibly secondary to up-regulation of the multidrug resistance protein (MDR). CF and non-CF human airway epithelial cell lines (CFBE and 16HBE) were treated with 0.4, 4, and 40 microg/mL AZM for 4 days. Cl- efflux was explored in the presence or absence of specific inhibitors of CFTR and alternative Cl- channels. Six CF patients received AZM (500 mg daily) for 6 months. The percentage of predicted forced vital capacity (FVC%), forced expiratory volume (FEV1%), and the number of acute exacerbations were compared before and after treatment. Nasal biopsies were taken before and after treatment, and mRNA expression of MDR and CFTR was determined by in situ hybridization. A significant dose-dependent increase of Cl- efflux from CFBE cells (but not from 16HBE cells) was observed after AZM treatment. A CFTR inhibitor significantly reduced AZM-stimulated Cl- efflux from CFBE cells. A significant improvement in FEV1%, and fewer exacerbations were observed. AZM treatment did not affect mRNA expression of MDR and CFTR. The stimulation of Cl- efflux could be part of the explanation for the clinical improvement seen among the patients.
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Affiliation(s)
- Igor Oliynyk
- Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden.
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27
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Spyratou E, Mourelatou EA, Makropoulou M, Demetzos C. Atomic force microscopy: a tool to study the structure, dynamics and stability of liposomal drug delivery systems. Expert Opin Drug Deliv 2009; 6:305-17. [PMID: 19327046 DOI: 10.1517/17425240902828312] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Much work has been done during the past few decades to develop effective drug delivery systems (DDS), many of which are based on nanotechnology science. Liposomes are the most attractive lipid vesicles for drug delivery. The multifunctional properties of liposomes have a key role in modifying the bioavailability profile of a therapeutic agent. Different analytical techniques can be used to describe liposomes, not least applied scanning probe microscopy (SPM) techniques. Atomic force microscopy (AFM) seems to be one of the most effectively applied SPM techniques. This review article outlines the applications of AFM in evaluating the physical characteristics and stability of liposomal DDSs. Other well-known microscopy techniques used in evaluating liposome physical characteristics are also mentioned, and the contribution of AFM to evaluating liposomal stability is discussed. Among the advantages of AFM in examining the physicochemical properties of liposomal DDSs is its ability to provide morphological and metrology information on liposome properties. AFM thus appears to be a promising tool in technological characterization of liposomal DDSs.
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Affiliation(s)
- Ellas Spyratou
- National Technical University of Athens, School of Applied Mathematical and Physical Sciences, Zografou Campus, Athens, 15780, Greece
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28
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Lygre H, Moe G, Nerdal W, Holmsen H. Interaction of articaine hydrochloride with prokaryotic membrane lipids. Acta Odontol Scand 2009; 67:1-7. [PMID: 18941950 DOI: 10.1080/00016350802443466] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
OBJECTIVE Local anesthetics are the most commonly used drugs in dentistry, with a wide range of effects, including antimicrobial activity. High antimicrobial effects have recently been reported on oral microbes from articaine hydrochloride, revealed by the minimum inhibitory concentration and minimal bactericidal concentration. Additionally, articaine has recently been used as an alkaline component in endodontic materials with a proposed antibacterial activity. However, the detailed mechanisms of action have not been discussed. MATERIAL AND METHODS We determined the Langmuir surface pressure/molecular area isotherms of prokaryotic lipid monolayers, as well as the phospholipid phase transitions, by employing differential scanning calorimetry on unilamellar prokaryotic liposomes (bilayers). RESULTS Articaine hydrochloride was found to interact with the prokaryotic membrane lipids in both monolayers and bilayers. An increase of the phospholipid molecular area of acidic glycerophospholipids as well as a decrease in phase transition temperature and enthalpy were found with increasing articaine hydrochloride concentration. The thermodynamic changes by adding articaine hydrochloride to prokaryotic membrane lipids are potentially related to the effects observed from antimicrobial peptides resulting from membrane insertion, aggregate composition, pore formation, and lysis. CONCLUSION Interaction of articaine hydrochloride with prokaryotic membrane lipids is indicated. Hence, further research is necessary to gain insight into where these compounds exert their effects at the molecular level.
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Nussio MR, Sykes MJ, Miners JO, Shapter JG. Kinetics membrane disruption due to drug interactions of chlorpromazine hydrochloride. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:1086-1090. [PMID: 19093750 DOI: 10.1021/la803288s] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Drug-membrane interactions assume considerable importance in pharmacokinetics and drug metabolism. Here, we present the interaction of chlorpromazine hydrochloride (CPZ) with supported phospholipid bilayers. It was demonstrated that CPZ binds rapidly to phospholipid bilayers, disturbing the molecular ordering of the phospholipids. These interactions were observed to follow first order kinetics, with an activation energy of approximately 420 kJ mol(-1). Time-dependent membrane disruption was also observed for the interaction with CPZ, such that holes appeared in the phospholipid bilayer after the interaction of CPZ. For this process of membrane disruption, "lag-burst" kinetics was demonstrated.
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Affiliation(s)
- Matthew R Nussio
- School of Chemistry, Physics and Earth Sciences, and Department of Clinical Pharmacology, Flinders University, Sturt Road, Bedford Park, Adelaide, SA 5001, Australia
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30
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Zhu ZJ, Krasnykh O, Pan D, Petukhova V, Yu G, Liu Y, Liu H, Hong S, Wang Y, Wan B, Liang W, Franzblau SG. Structure-activity relationships of macrolides against Mycobacterium tuberculosis. Tuberculosis (Edinb) 2008; 88 Suppl 1:S49-63. [PMID: 18762153 DOI: 10.1016/s1472-9792(08)70036-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Existing 14, 15 and 16-membered macrolide antibiotics, while effective for other bacterial infections, including some mycobacteria, have not demonstrated significant efficacy in tuberculosis. Therefore an attempt was made to optimize this class for activity against Mycobacterium tuberculosis through semisyntheses and bioassay. Approximately 300 macrolides were synthesized and screened for anti-TB activity. Structural modifications on erythromycin were carried out at positions 3, 6, 9, 11, and 12 of the 14-membered lactone ring; as well as at position 4'' of cladinose and position 2' of desosamine. In general, the synthesized macrolides belong to four subclasses: 9-oxime, 11,12-carbamate, 11,12-carbazate, and 6-O-substituted derivatives. Selected compounds were assessed for mammalian cell toxicity and in some cases were further assessed for CYP3A4 inhibition, microsome stability, in vivo tolerance and efficacy. The activity of 11,12-carbamates and carbazates as well as 9-oximes is highly influenced by the nature of the substitution at these positions. For hydrophilic macrolides, lipophilic substitution may result in enhanced potency, presumably by enhanced passive permeation through the cell envelope. This strategy, however, has limitations. Removal of the C-3 cladinose generally reduces the activity. Acetylation at C-2' or 4'' maintains potency of C-9 oximes but dramatically decreases that of 11,12-substituted compounds. Further significant increases in the potency of macrolides for M. tuberculosis may require a strategy for the concurrent reduction of ribosome methylation.
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Affiliation(s)
- Zhaohai J Zhu
- Institute for Tuberculosis Research, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St. Chicago, Illinois 60612, USA
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Stasiuk M, Kozubek A. Membrane perturbing properties of natural phenolic and resorcinolic lipids. FEBS Lett 2008; 582:3607-13. [DOI: 10.1016/j.febslet.2008.09.039] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2008] [Revised: 09/16/2008] [Accepted: 09/18/2008] [Indexed: 11/29/2022]
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Characterization of the interactions between fluoroquinolone antibiotics and lipids: a multitechnique approach. Biophys J 2008; 94:3035-46. [PMID: 18178657 PMCID: PMC2275711 DOI: 10.1529/biophysj.107.114843] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Probing drug/lipid interactions at the molecular level represents an important challenge in pharmaceutical research and membrane biophysics. Previous studies showed differences in accumulation and intracellular activity between two fluoroquinolones, ciprofloxacin and moxifloxacin, that may actually result from their differential susceptibility to efflux by the ciprofloxacin transporter. In view of the critical role of lipids for the drug cellular uptake and differences observed for the two closely related fluoroquinolones, we investigated the interactions of these two antibiotics with lipids, using an array of complementary techniques. Moxifloxacin induced, to a greater extent than ciprofloxacin, an erosion of the DPPC domains in the DOPC fluid phase (atomic force microscopy) and a shift of the surface pressure-area isotherms of DOPC/DPPC/fluoroquinolone monolayer toward lower area per molecule (Langmuir studies). These effects are related to a lower propensity of moxifloxacin to be released from lipid to aqueous phase (determined by phase transfer studies and conformational analysis) and a marked decrease of all-trans conformation of acyl-lipid chains of DPPC (determined by ATR-FTIR) without increase of lipid disorder and change in the tilt between the normal and the germanium surface (also determined by ATR-FTIR). All together, differences of ciprofloxacin as compared to moxifloxacin in their interactions with lipids could explain differences in their cellular accumulation and susceptibility to efflux transporters.
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Shahin V, Barrera NP. Providing Unique Insight into Cell Biology via Atomic Force Microscopy. INTERNATIONAL REVIEW OF CYTOLOGY 2008; 265:227-52. [DOI: 10.1016/s0074-7696(07)65006-2] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Korchowiec B, Salem AB, Corvis Y, Korchowiec J, Rogalska E. Calixarenes in a Membrane Environment: A Monolayer Study on the Miscibility of Threep-tert-Butylcalix[4]arene β-Lactam Derivatives with 1,2-Dimyristoyl-sn-glycero-3-phosphoethanolamine. J Phys Chem B 2007; 111:13231-42. [DOI: 10.1021/jp070970+] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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35
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Fa N, Lins L, Courtoy PJ, Dufrêne Y, Van Der Smissen P, Brasseur R, Tyteca D, Mingeot-Leclercq MP. Decrease of elastic moduli of DOPC bilayers induced by a macrolide antibiotic, azithromycin. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2007; 1768:1830-8. [PMID: 17537401 DOI: 10.1016/j.bbamem.2007.04.013] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2007] [Revised: 04/06/2007] [Accepted: 04/10/2007] [Indexed: 10/23/2022]
Abstract
The elastic properties of membrane bilayers are key parameters that control its deformation and can be affected by pharmacological agents. Our previous atomic force microscopy studies revealed that the macrolide antibiotic, azithromycin, leads to erosion of DPPC domains in a fluid DOPC matrix [A. Berquand, M. P. Mingeot-Leclercq, Y. F. Dufrene, Real-time imaging of drug-membrane interactions by atomic force microscopy, Biochim. Biophys. Acta 1664 (2004) 198-205.]. Since this observation could be due to an effect on DOPC cohesion, we investigated the effect of azithromycin on elastic properties of DOPC giant unilamellar vesicles (GUVs). Microcinematographic and morphometric analyses revealed that azithromycin addition enhanced lipid membranes fluctuations, leading to eventual disruption of the largest GUVs. These effects were related to change of elastic moduli of DOPC, quantified by the micropipette aspiration technique. Azithromycin decreased both the bending modulus (k(c), from 23.1+/-3.5 to 10.6+/-4.5 k(B)T) and the apparent area compressibility modulus (K(app), from 176+/-35 to 113+/-25 mN/m). These data suggested that insertion of azithromycin into the DOPC bilayer reduced the requirement level of both the energy for thermal fluctuations and the stress to stretch the bilayer. Computer modeling of azithromycin interaction with DOPC bilayer, based on minimal energy, independently predicted that azithromycin (i) inserts at the interface of phospholipid bilayers, (ii) decreases the energy of interaction between DOPC molecules, and (iii) increases the mean surface occupied by each phospholipid molecule. We conclude that azithromycin inserts into the DOPC lipid bilayer, so as to decrease its cohesion and to facilitate the merging of DPPC into the DOPC fluid matrix, as observed by atomic force microscopy. These investigations, based on three complementary approaches, provide the first biophysical evidence for the ability of an amphiphilic antibiotic to alter lipid elastic moduli. This may be an important determinant for drug: lipid interactions and cellular pharmacology.
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Affiliation(s)
- N Fa
- Université Catholique de Louvain, Unité de Pharmacologie Cellulaire et Moléculaire, Avenue E. Mounier 73, Bt 7370, B-1200 Brussels, Belgium
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Fa N, Ronkart S, Schanck A, Deleu M, Gaigneaux A, Goormaghtigh E, Mingeot-Leclercq MP. Effect of the antibiotic azithromycin on thermotropic behavior of DOPC or DPPC bilayers. Chem Phys Lipids 2006; 144:108-16. [PMID: 17007828 DOI: 10.1016/j.chemphyslip.2006.08.002] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2006] [Accepted: 08/08/2006] [Indexed: 11/18/2022]
Abstract
Azithromycin is a macrolide antibiotic known to bind to lipids and to affect endocytosis probably by interacting with lipid membranes [Tyteca, D., Schanck, A., Dufrene, Y.F., Deleu, M., Courtoy, P.J., Tulkens, P.M., Mingeot-Leclercq, M.P., 2003. The macrolide antibiotic azithromycin interacts with lipids and affects membrane organization and fluidity: studies on Langmuir-Blodgett monolayers, liposomes and J774 macrophages. J. Membr. Biol. 192, 203-215]. In this work, we investigate the effect of azithromycin on lipid model membranes made of 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) or 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC). Thermal transitions of both lipids in contact with azithromycin are studied by (31)P NMR and DSC on multilamellar vesicles. Concerning the DPPC, azithromycin induces a suppression of the pretransition whereas a phase separation between the DOPC and the antibiotic is observed. For both lipids, the enthalpy associated with the phase transition is strongly decreased with azithromycin. Such effects may be due to an increase of the available space between hydrophobic chains after insertion of azithromycin in lipids. The findings provide a molecular insight of the phase merging of DPPC gel in DOPC fluid matrix induced by azithromycin [Berquand, A., Mingeot-Leclercq, M.P., Dufrene, Y.F., 2004. Real-time imaging of drug-membrane interactions by atomic force microscopy. Biochim. Biophys. Acta 1664, 198-205] and could help to a better understanding of azithromycin-cell interaction.
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Affiliation(s)
- N Fa
- Unité de Pharmacologie Cellulaire et Moléculaire, Université Catholique de Louvain, 73.70 Avenue E. Mounier 73, B-1200 Brussels, Belgium
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Zotchev SB, Stepanchikova AV, Sergeyko AP, Sobolev BN, Filimonov DA, Poroikov VV. Rational design of macrolides by virtual screening of combinatorial libraries generated through in silico manipulation of polyketide synthases. J Med Chem 2006; 49:2077-87. [PMID: 16539396 DOI: 10.1021/jm051035i] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Bacterial secondary metabolites display diverse biological activities, thus having potential as pharmacological agents. Although most of these compounds are discovered by random screening, it is possible to predict and re-design their structures based on the information on their biosynthetic pathways. Biosynthesis of macrolides, governed by modular polyketide synthases (PKS), obeys certain rules, which can be simulated in silico. PKS mode of action theoretically allows for a huge number of macrolides to be produced upon combinatorial manipulation. Since engineering of all possible PKS variants is practically unfeasible, we created Biogenerator software, which simulates manipulation of PKS and generates virtual libraries of macrolides. These libraries can be screened by computer-aided prediction of biological activities, as exemplified by analysis of erythromycin and macrolactin libraries. This approach allows rational selection of macrolides with desired biological activities and provides instructions regarding the composition of the PKS gene clusters necessary for microbial production of such molecules.
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Affiliation(s)
- Sergey B Zotchev
- Department of Biotechnology, Norwegian University of Science and Technology, Trondheim, Norway
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