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Londero VS, Rosa ME, Baitello JB, Costa-Silva TA, Cruz LMS, Tempone AG, Caseli L, Lago JHG. Barbellatanic acid, a new antitrypanosomal pseudo-disesquiterpenoid isolated from Nectandra barbellata, displayed interaction with protozoan cell membrane. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2023; 1865:184184. [PMID: 37301246 DOI: 10.1016/j.bbamem.2023.184184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023]
Abstract
As part of our ongoing studies involving the discovery of new natural prototypes with antiprotozoal activity against Trypanosoma cruzi from Brazilian plant species, the chromatographic fractionation of hexane extract from leaves of Nectandra barbellata afforded one new pseudo-disesquiterpenoid, barbellatanic acid. The structure of this compound was elucidated by NMR and HR-ESIMS data analysis. Barbellatanic acid displayed a trypanocidal effect with IC50 of 13.2 μM to trypomastigotes and no toxicity against NCTC cells (CC50 > 200 μM), resulting in an SI value higher than 15.1. The investigation of the lethal mechanism of barbellatanic acid in trypomastigotes, using both fluorescence microscopy and spectrofluorimetric analysis, revealed a time-dependent permeation of the plasma membrane. Based on these results, this compound was incorporated in cellular membrane models built with lipid Langmuir monolayers. The interaction of barbellatanic acid with the models was inferred by tensiometric, rheological, spectroscopical, and morphological techniques, which showed that this compound altered the thermodynamic, viscoelastic, structural, and morphological properties of the film. Taking together, these results could be employed when this prodrug interacts with lipidic interfaces, such as protozoa membranes or liposomes for drug delivery systems.
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Affiliation(s)
- Vinicius S Londero
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, 09972-270 São Paulo, Brazil
| | - Matheus E Rosa
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, 09972-270 São Paulo, Brazil
| | - João B Baitello
- Division of Dasonomy, Forestry Institute, 02377-000 São Paulo, Brazil
| | - Thais A Costa-Silva
- Center for Natural and Human Sciences, Federal University of ABC, 09210-180 São Paulo, Brazil
| | - Lucas Monteiro S Cruz
- Organic Contaminants Nucleus - Contaminants Center, Adolfo Lutz Institute, 01246-902 São Paulo, Brazil
| | - Andre G Tempone
- Center for Parasitology and Mycology, Adolfo Lutz Institute, 01246-902 São Paulo, Brazil
| | - Luciano Caseli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo, 09972-270 São Paulo, Brazil.
| | - João Henrique G Lago
- Center for Natural and Human Sciences, Federal University of ABC, 09210-180 São Paulo, Brazil.
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Kobal MB, Camacho SA, Moreira LG, Toledo KA, Tada DB, Aoki PHB. Unveiling the mechanisms underlying photothermal efficiency of gold shell-isolated nanoparticles (AuSHINs) on ductal mammary carcinoma cells (BT-474). Biophys Chem 2023; 300:107077. [PMID: 37515949 DOI: 10.1016/j.bpc.2023.107077] [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: 05/18/2023] [Revised: 07/05/2023] [Accepted: 07/17/2023] [Indexed: 07/31/2023]
Abstract
Gold nanoparticles are valuable photothermal agents owing to their efficient photothermal conversion, photobleaching resistance, and potential surface functionalization. Herein, we combined bioinspired membranes with in vitro assays to elicit the molecular mechanisms of gold shell-isolated nanoparticles (AuSHINs) on ductal mammary carcinoma cells (BT-474). Langmuir and Langmuir-Schaefer (LS) films were handled to build biomembranes from BT-474 lipid extract. AuSHINs incorporation led to surface pressure-area (π-A) isotherms expansion, increasing membrane flexibility. Fourier-transform infrared spectroscopy (FTIR) of LS multilayers revealed electrostatic AuSHINs interaction with head portions of BT-474 lipid extract, causing lipid chain disorganization. Limited AuSHINs insertion into monolayer contributed to hydroperoxidation of the unsaturated lipids upon irradiation, consistently with the surface area increments of ca. 2.0%. In fact, membrane disruption of irradiated BT-474 cells containing AuSHINs was confirmed by confocal microscopy and LDH leakage, with greater damage at 2.2 × 1013 AuSHINs/mL. Furthermore, the decrease in nuclei dimensions indicates cell death through photoinduced damage.
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Affiliation(s)
- M B Kobal
- São Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP 19806-900, Brazil
| | - S A Camacho
- São Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP 19806-900, Brazil; University of São Paulo (USP), São Carlos Institute of Physics (IFSC), São Carlos, SP 13566-590, Brazil
| | - L G Moreira
- São Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP 19806-900, Brazil
| | - K A Toledo
- São Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP 19806-900, Brazil; São Paulo State University (UNESP), Institute of Biosciences, Letters and Exact Sciences, São José do Rio Preto, SP 15054-000, Brazil
| | - D B Tada
- Federal University of São Paulo (UNIFESP), Institute of Science and Technology, São José dos Campos, SP 12231-280, Brazil
| | - P H B Aoki
- São Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP 19806-900, Brazil.
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Rubira RJG, Batista VRG, Correia RR, Pazin WM, Maximino MD, Ruiz GCM, Teixeira GR, Job AE. Biological responses to imazapic and methyl parathion pesticides in bioinspired lipid membranes and Tilapia fish. JOURNAL OF HAZARDOUS MATERIALS 2023; 458:131943. [PMID: 37390683 DOI: 10.1016/j.jhazmat.2023.131943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/23/2023] [Accepted: 06/24/2023] [Indexed: 07/02/2023]
Abstract
Pesticide misuse has well-documented detrimental effects on ecosystems, with Nile tilapia (Oreochromis niloticus) being particularly vulnerable. The current study focuses on the impact of widely used sugarcane crop pesticides, Imazapic (IMZ) and Methyl Parathion (MP), on tilapia gill tissues and their lipid membranes. This investigation was motivated by the specific role of the lipid membrane in transport regulation. Bioinspired cell membrane models, including Langmuir monolayers and liposomes (LUVs and GUVs), were utilized to explore the interaction of IMZ and MP. The results revealed electrostatic interactions between IMZ and MP and the polar head groups of lipids, inducing morphological alterations in the lipid bilayer. Tilapia gill tissue exposed to the pesticides exhibited hypertrophic increases in primary and secondary lamellae, total lamellar fusion, vasodilation, and lifting of the secondary lamellar epithelium. These alterations can lead to compromised oxygen absorption by fish and subsequent mortality. This study not only highlights the harmful effects of the pesticides IMZ and MP, but also emphasizes the crucial role of water quality in ecosystem well-being, even at minimal pesticide concentrations. Understanding these impacts can better inform management practices to safeguard aquatic organisms and preserve ecosystem health in pesticide-affected environments.
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Affiliation(s)
- Rafael J G Rubira
- São Paulo State University (Unesp), School of Technology and Sciences, Presidente Prudente, SP 19060-900, Brazil.
| | - Victor R G Batista
- São Paulo State University (Unesp), School of Technology and Sciences, Presidente Prudente, SP 19060-900, Brazil
| | - Rafael R Correia
- São Paulo State University (Unesp), School of Technology and Sciences, Presidente Prudente, SP 19060-900, Brazil
| | - Wallance M Pazin
- São Paulo State University (Unesp), School of Sciences, Bauru, SP CEP 17033-360, Brazil
| | - Mateus D Maximino
- São Paulo State University (Unesp), School of Technology and Sciences, Presidente Prudente, SP 19060-900, Brazil
| | - Gilia C M Ruiz
- São Paulo State University (Unesp), School of Technology and Sciences, Presidente Prudente, SP 19060-900, Brazil
| | - Giovana R Teixeira
- São Paulo State University (Unesp), School of Technology and Sciences, Presidente Prudente, SP 19060-900, Brazil
| | - Aldo E Job
- São Paulo State University (Unesp), School of Technology and Sciences, Presidente Prudente, SP 19060-900, Brazil
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Bartkowiak A, Nazaruk E, Gajda E, Godlewska M, Gaweł D, Jabłonowska E, Bilewicz R. Simvastatin Coadministration Modulates the Electrostatically Driven Incorporation of Doxorubicin into Model Lipid and Cell Membranes. ACS Biomater Sci Eng 2022; 8:4354-4364. [PMID: 36173110 PMCID: PMC9554873 DOI: 10.1021/acsbiomaterials.2c00724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
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Understanding the interactions between drugs and lipid
membranes
is a prerequisite for finding the optimal way to deliver drugs into
cells. Coadministration of statins and anticancer agents has been
reported to have a positive effect on anticancer therapy. In this
study, we elucidate the mechanism by which simvastatin (SIM) improves
the efficiency of biological membrane penetration by the chemotherapeutic
agent doxorubicin (DOX) in neutral and slightly acidic solutions.
The incorporation of DOX, SIM, or a combination of them (DOX:SIM)
into selected single-component lipid membranes, zwitterionic unsaturated
1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine
(POPC), neutral cholesterol, and negatively charged 1,2-dimyristoyl-sn-glycero-3-phospho-l-serine (DMPS) was assessed
using the Langmuir method. The penetration of neutral lipid monolayers
by the codelivery of SIM and DOX was clearly facilitated at pH 5.5,
which resembles the pH conditions of the environment of cancer cells.
This effect was ascribed to partial neutralization of the DOX positive
charge as the result of intermolecular interactions between DOX and
SIM. On the other hand, the penetration of the negatively charged
DMPS monolayer was most efficient in the case of the positively charged
DOX. The efficiency of the drug delivery to the cell membranes was
evaluated under in vitro conditions using a panel
of cancer-derived cell lines (A172, T98G, and HeLa). MTS and trypan
blue exclusion assays were performed, followed by confocal microscopy
and spheroid culture tests. Cells were exposed to either free drugs
or drugs encapsulated in lipid carriers termed cubosomes. We demonstrated
that the viability of cancer cells exposed to DOX was significantly
impaired in the presence of SIM, and this phenomenon was greatly magnified
when DOX and SIM were coencapsulated in cubosomes. Overall, our results
confirmed the utility of the DOX:SIM combination delivery, which enhances
the interactions between neutral components of cell membranes and
positively charged chemotherapeutic agents.
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Affiliation(s)
| | - Ewa Nazaruk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02093 Warsaw, Poland
| | - Ewa Gajda
- Department of Biochemistry and Molecular Biology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland
| | - Marlena Godlewska
- Department of Biochemistry and Molecular Biology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland
| | - Damian Gaweł
- Department of Cell Biology and Immunology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland
| | | | - Renata Bilewicz
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02093 Warsaw, Poland
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Use of giant unilamellar lipid vesicles as antioxidant carriers in in vitro culture medium of bovine embryos. Sci Rep 2022; 12:11228. [PMID: 35787650 PMCID: PMC9253010 DOI: 10.1038/s41598-022-14688-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 06/10/2022] [Indexed: 01/20/2023] Open
Abstract
Giant unilamellar vesicles (GUVs) are composed of lipophilic layers and are sensitive to the action of reactive oxygen species (ROS). The use of GUVs as microcarriers of biological macromolecules is particularly interesting since ROS produced by gametes or embryos during in vitro culture can induce the opening of pores in the membrane of these vesicles and cause the release of their content. This study investigated the behavior of GUVs [composed of 2-dioleoyl-sn-glycero-3-phosphocholine and 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine-N-(lissamine rhodamine B sulfonyl)] in co-culture with in vitro produced bovine embryos, as well as their embryotoxicity and effectiveness as cysteine carriers in culture medium. Embryonic developmental rates were unaffected, demonstrating the absence of toxicity of GUVs co-cultured with the embryos. No increase of intracellular ROS levels was observed in the embryos co-cultured with GUVs, indicating that the higher lipid content of the culture environment resulting from the lipid composition of the GUV membrane itself did not increase oxidative stress. Variations in the diameter and number of GUVs demonstrated their sensitivity to ROS produced by embryos cultured under conditions that generate oxidative stress. Encapsulation of cysteine in GUVs was found to be more effective in controlling the production of ROS in embryonic cells than direct dilution of this antioxidant in the medium. In conclusion, the use of GUVs in in vitro culture was found to be safe since these vesicles did not promote toxic effects nor did they increase intracellular ROS concentrations in the embryos. GUVs were sensitive to oxidative stress, which resulted in structural changes in response to the action of ROS. The possible slow release of cysteine into the culture medium by GUV rupture would therefore favor the gradual supply of cysteine, prolonging its presence in the medium. Thus, the main implication of the use of GUVs as cysteine microcarriers is the greater effectiveness in preventing the intracytoplasmic increase of ROS in in vitro produced bovine embryos.
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Unsaturated lipids modulating the interaction of the antileishmanial isolinderanolide E with models of cellular membranes. Bioorg Chem 2022; 124:105814. [PMID: 35461015 DOI: 10.1016/j.bioorg.2022.105814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/07/2022] [Accepted: 04/14/2022] [Indexed: 11/23/2022]
Abstract
The present work evaluated the antiprotozoal activity of isolinderanolide E, isolated from the Brazilian plant Nectandra oppositifolia, against promastigote forms of Leishmania (Leishmania) amazonensis. The compound exhibited an EC50 value of 20.3 μM, similar to the positive control miltefosine (IC50 of 19.4 μM), and reduced toxicity to macrophages (CC50 > 200 μM). Based on these results, Langmuir monolayers of two unsaturated lipids: 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) and 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE), were employed as a model of mammalian and parasite membranes, respectively, to study the interaction of isolinderanolide E at a molecular level. The films were characterized with tensiometry (surface pressure-area isotherms and surface pressure-time curves), infrared spectroscopy, and Brewster angle microscopy (BAM). This compound changed the profile of the isotherms leading to fluid DOPC and DOPE monolayers, which were not able to attain rigid states even with compression. Infrared spectroscopy showed that the bioactive compound decreases the trans/gauche ratio conformers related to the molecular conformational disorder. BAM showed the formation of specific aggregates upon drug incorporation. In conclusion, isolinderanolide E changes the thermodynamic, mechanical, structural, and morphological characteristics of the monolayer of these unsaturated lipids, which may be essential to understand the action at the molecular level bioactives in biointerfaces.
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Sofińska K, Lupa D, Chachaj-Brekiesz A, Czaja M, Kobierski J, Seweryn S, Skirlińska-Nosek K, Szymonski M, Wilkosz N, Wnętrzak A, Lipiec E. Revealing local molecular distribution, orientation, phase separation, and formation of domains in artificial lipid layers: Towards comprehensive characterization of biological membranes. Adv Colloid Interface Sci 2022; 301:102614. [PMID: 35190313 DOI: 10.1016/j.cis.2022.102614] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/28/2022] [Accepted: 02/01/2022] [Indexed: 01/01/2023]
Abstract
Lipids, together with molecules such as DNA and proteins, are one of the most relevant systems responsible for the existence of life. Selected lipids are able to assembly into various organized structures, such as lipid membranes. The unique properties of lipid membranes determine their complex functions, not only to separate biological environments, but also to participate in regulatory functions, absorption of nutrients, cell-cell communication, endocytosis, cell signaling, and many others. Despite numerous scientific efforts, still little is known about the reason underlying the variability within lipid membranes, and its biochemical significance. In this review, we discuss the structural complexity of lipid membranes, as well as the importance to simplify studied systems in order to understand phenomena occurring in natural, complex membranes. Such systems require a model interface to be analyzed. Therefore, here we focused on analytical studies of artificial systems at various interfaces. The molecular structure of lipid membranes, specifically the nanometric thickens of molecular bilayer, limits in a major extent the choice of highly sensitive methods suitable to study such structures. Therefore, we focused on methods that combine high sensitivity, and/or chemical selectivity, and/or nanometric spatial resolution, such as atomic force microscopy, nanospectroscopy (tip-enhanced Raman spectroscopy, infrared nanospectroscopy), phase modulation infrared reflection-absorption spectroscopy, sum-frequency generation spectroscopy. We summarized experimental and theoretical approaches providing information about molecular structure and composition, lipid spatial distribution (phase separation), organization (domain shape, molecular orientation) of lipid membranes, and real-time visualization of the influence of various molecules (proteins, drugs) on their integrity. An integral part of this review discusses the latest achievements in the field of lipid layer-based biosensors.
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Pereira LS, Camacho SA, Almeida AM, Gonçalves RS, Caetano W, DeWolf C, Aoki PH. Mechanisms of hypericin incorporation to explain the photooxidation outcomes in phospholipid biomembrane models. Chem Phys Lipids 2022; 244:105181. [DOI: 10.1016/j.chemphyslip.2022.105181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 01/14/2022] [Accepted: 02/10/2022] [Indexed: 11/03/2022]
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Băran A, Aricov L, Stîngă G, Iovescu A, Leontieş AR, Jerca VV. The effect of C12E6 nonionic surfactant on the solubilization of Eosin Y in unmodified- and hydrophobically modified poly(Acrylic acid) solutions. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117103] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bistaffa MJ, Camacho SA, Melo CFOR, Catharino RR, Toledo KA, Aoki PHB. Plasma membrane permeabilization to explain erythrosine B phototoxicity on in vitro breast cancer cell models. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 223:112297. [PMID: 34482154 DOI: 10.1016/j.jphotobiol.2021.112297] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/14/2021] [Accepted: 08/18/2021] [Indexed: 02/02/2023]
Abstract
Lipid oxidation is ubiquitous in cell life under oxygen and essential for photodynamic therapy (PDT) of carcinomas. However, the mechanisms underlying lipid oxidation in rather complex systems such as plasma membranes remain elusive. Herein, Langmuir monolayers were assembled with the lipid extract of glandular breast cancer (MCF7) cells and used to probe the molecular interactions allowing adsorption of the photosensitizer (PS) erythrosine B and subsequent photooxidation outcomes. Surface pressure (π) versus area (cm2/mL) isotherms of MCF7 lipid extract shifted to larger areas upon erythrosine incorporation, driven by secondary interactions that affected the orientation of the carbonyl groups and lipid chain organization. Light-irradiation increased the surface area of the MCF7 lipid extract monolayer containing erythrosine owing to the lipid hydroperoxidation, which may further undergo decomposition, resulting in the chain cleavage of phospholipids and membrane permeabilization. Incorporation of erythrosine by MCF7 cells induced slight toxic effects on in vitro assays, differently of the severe phototoxicity caused by light-irradiation, which significantly decreased cell viability by more than 75% at 2.5 × 10-6 mol/L of erythrosine incubated for 3 and 24 h, reaching nearly 90% at 48 h of incubation. The origin of the phototoxic effects is in the rupture of the plasma membrane shown by the frontal (FSC) and side (SSC) light scattering of flow cytometry. Consistent with hydroperoxide decomposition, membrane permeabilization was also confirmed by cleaved lipids detected in mass spectrometry and subsidizes the necrotic pathway of cell death.
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Affiliation(s)
- Maria J Bistaffa
- São Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP 19806-900, Brazil
| | - Sabrina A Camacho
- São Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP 19806-900, Brazil.; IFSC, São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, SP 13566-590, Brazil
| | - Carlos F O R Melo
- São Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP 19806-900, Brazil
| | - Rodrigo R Catharino
- INNOVARE Biomarkers Laboratory, School of Pharmaceutical Sciences, University of Campinas, Campinas, SP 13083-970, Brazil
| | - Karina A Toledo
- São Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP 19806-900, Brazil.; São Paulo State University (UNESP), Institute of Biosciences, Letters and Exact Sciences, São José do Rio Preto, SP 15054-000, Brazil
| | - Pedro H B Aoki
- São Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP 19806-900, Brazil..
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Interaction of isolinderanolide E obtained from Nectandra oppositifolia with biomembrane models. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2021; 1863:183690. [PMID: 34224703 DOI: 10.1016/j.bbamem.2021.183690] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/24/2021] [Accepted: 06/28/2021] [Indexed: 01/07/2023]
Abstract
A long-tail lactone, named isolinderanolide E, was obtained from Nectandra oppositifolia and incorporated in Langmuir monolayers of dipalmitoyl-phosphoethanolamine (DPPE) as a model of microbial membranes. The compound was dissolved in chloroform and mixed with DPPE to provide mixed solutions spread on the air-water interface. After solvent evaporation, mixed monolayers were formed, and surface pressure-area isotherms, dilatational rheology, Brewster angle microscopy (BAM), and infrared spectroscopy were employed to characterize the prodrug-membrane interactions. Isolinderanolide E expanded DPPE monolayers, denoting repulsive interactions. At 30 mN/m, the monolayer presented higher viscoelastic and in-plane elasticity parameters and an increased ratio of all-trans/gauche conformers of the alkyl chains, confirming molecular order. Morphology of the monolayer was analyzed by BAM, which revealed a more homogeneous distribution of Isolinderanolide E along the DPPE monolayer than the prodrug directly spread at the interface, which tends to aggregate. A molecular model proposing the molecular orientation of the amphiphilic drug is presented and explained by the distortion of the alkyl chains as well as by viscoelastic changes. In conclusion, the prodrug changes the thermodynamic, rheological, morphological, and structural properties of the DPPE monolayer, which may be essential to understand, at the molecular level, the action of bioactives in selected membrane models.
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Wnętrzak A, Chachaj-Brekiesz A, Kuś K, Filiczkowska A, Lipiec E, Kobierski J, Petelska AD, Dynarowicz-Latka P. 25-hydroxycholesterol interacts differently with lipids of the inner and outer membrane leaflet - The Langmuir monolayer study complemented with theoretical calculations. J Steroid Biochem Mol Biol 2021; 211:105909. [PMID: 33984516 DOI: 10.1016/j.jsbmb.2021.105909] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/16/2021] [Accepted: 05/03/2021] [Indexed: 02/08/2023]
Abstract
25-hydroxycholesterol (25-OH), a molecule with unusual behavior at the air/water interface, being anchored to the water surface alternatively with a hydroxyl group at C(3) or C(25), has been investigated in mixtures with main membrane phospholipids (phosphatidylcholines - PCs, and phosphatidylethanolamines - PEs), characteristic of the outer and inner membrane leaflet, respectively. To achieve this goal, the classical Langmuir monolayer approach based on thermodynamic analysis of interactions was conducted in addition to microscopic imaging of films (in situ with BAM and after transfer onto mica with AFM), surface-sensitive spectroscopy (PM-IRRAS), as well as theoretical calculations. Our results show that the strength of interactions is primarily determined by the kind of polar group (strong, attractive interactions leading to surface complexes formation were found to occur with PCs while weak or repulsive ones with PEs). Subsequently, the saturation of phosphatidylcholines apolar chain(s) was found to be crucial for the structure of the formed complexes. Namely, saturated PC (DPPC) does not have preferences regarding the orientation of 25-OH molecule in surface complexes (which results in the two possible 25-OH arrangements), while unsaturated PC (DOPC) enforces one specific orientation of oxysterol (with C(3)-OH group). Our findings suggest that the transport of 25-OH between inner and outer membrane leaflet can proceed without orientation changes, which is thermodynamically advantageous. This explains results found in real systems showing significant differences in the rate of transmembrane transport of 25-OH and the other chain-oxidized oxysterols compared to their ring-oxidized analogues or cholesterol.
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Affiliation(s)
- Anita Wnętrzak
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland.
| | - Anna Chachaj-Brekiesz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Karolina Kuś
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Kraków, Poland
| | - Anna Filiczkowska
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Ewelina Lipiec
- Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Łojasiewicza 11, 30-348, Kraków, Poland
| | - Jan Kobierski
- Department of Pharmaceutical Biophysics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688, Kraków, Poland
| | - Aneta D Petelska
- Faculty of Chemistry, University of Bialystok, Ciołkowskiego 1K, 15-425, Bialystok, Poland
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da Silva RLCG, Sharma SK, Paudyal S, Mintz KJ, Leblanc RM, Caseli L. Surface Chemistry Studies on the Formation of Mixed Stearic Acid/Phenylalanine Dehydrogenase Langmuir and Langmuir-Blodgett Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:7771-7779. [PMID: 34125555 DOI: 10.1021/acs.langmuir.1c00934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This work investigates the physicochemical properties of mixed stearic acid (HSt)/phenylalanine dehydrogenase enzyme (PheDH) Langmuir films and their immobilization onto solid supports as Langmuir-Blodgett (LB) films. PheDH from the aqueous subphase enters the surfactant matrix up to an exclusion surface pressure of 25.3 mN/m, leading to the formation of stable and highly condensed mixed Langmuir monolayers. Hydrophobic interactions between the enzyme and HSt nonpolar groups tuned the secondary structure of PheDH, evidenced by the presence of β-sheet structures as demonstrated by infrared and circular dichroism spectra. The floating monolayers were successfully transferred to solid quartz supports, yielding Y-type LB films, and then characterized employing fluorescence, circular dichroism, and microscopic techniques, which indicated that PheDH was co-immobilized with HSt proportionally to the number of transferred layers. The enzyme fluidized the HSt monolayers, reducing their maximum dipoles when condensed to their maximum, and disorganized the alkyl chains of the fatty acid, as detected with infrared spectroscopy. The stability of the mixed floating monolayers enabled their transfer to solid supports as LB films, which is important for producing optical and electrochemical sensors for phenylalanine whose molecular architecture can be controlled with precision.
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Affiliation(s)
| | - Shiv K Sharma
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Suraj Paudyal
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Keenan J Mintz
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Roger M Leblanc
- Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States
| | - Luciano Caseli
- Department of Chemistry, Federal University of São Paulo, Diadema, São Paulo 09920-540, Brazil
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14
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Effects of insecticide acephate on membrane mimetic systems: The role played by electrostatic interactions with lipid polar headgroups. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.115868] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Ruiz GCM, do Carmo Morato LF, Pazin WM, Milano F, Constantino CJL, Valli L, Giotta L. Chemical and morphological effects of the contraceptive hormone 17 α-ethynylestradiol on fluid lipid membranes. Colloids Surf B Biointerfaces 2021; 204:111794. [PMID: 33940520 DOI: 10.1016/j.colsurfb.2021.111794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 03/03/2021] [Accepted: 04/24/2021] [Indexed: 11/30/2022]
Abstract
The lack of studies involving the effects in human health associated with the chronic ingestion of pollutants lead to the path of investigating the action of these compounds in cell membrane models. We demonstrated the interaction (causes and consequences) of the hormone 17 α-ethinylestradiol (EE2) with lipid monolayers (prepared as Langmuir films) and bilayers prepared as small unilamellar vesicles (SUVs) and giant unilamellar vesicles (GUVs). Both fluidity and majority chemical composition of real plasma cell membrane were guaranteed using the phospholipid 1-palmitoil-2-oleoyl-sn-glycero-3-phosphatidylcholine (POPC). Surface pressure-mean molecular area (π-A) isotherms and PM-IRRAS measurements highlighted the strong interaction of EE2 with POPC monolayers, leading the hormone to remain at the air/water interface and promoting its penetration into the phospholipid hydrophobic chains. In the case of bilayers, the entrance of the hormone inside the SUV is likely facilitated by their high curvature. In GUVs, EE2 was responsible for changes in the spherical shape, forming structures like buds and lipid protrusions. The set of results indicates the strong effects of EE2 on fluid membranes, which is an important feature to predict its damage in human cells.
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Affiliation(s)
- Gilia Cristine Marques Ruiz
- Department of Physics, School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente, SP, Brazil.
| | - Luis Fernando do Carmo Morato
- Department of Physics, School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente, SP, Brazil
| | - Wallance Moreira Pazin
- Department of Physics, School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente, SP, Brazil
| | - Francesco Milano
- Institute of Sciences of Food Production, Italian National Research Council (CNR-ISPA), S.P. Lecce-Monteroni, Lecce, I-73100, Italy
| | - Carlos José Leopoldo Constantino
- Department of Physics, School of Technology and Applied Sciences, São Paulo State University (UNESP), Presidente Prudente, SP, Brazil
| | - Ludovico Valli
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, S.P. Lecce-Monteroni, Lecce, I-73100, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Unità di Lecce, S.P. Lecce-Monteroni, Lecce, I-73100, Italy
| | - Livia Giotta
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, S.P. Lecce-Monteroni, Lecce, I-73100, Italy; Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Unità di Lecce, S.P. Lecce-Monteroni, Lecce, I-73100, Italy
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16
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Moreira LG, Almeida AM, Nield T, Camacho SA, Aoki PHB. Modulating photochemical reactions in Langmuir monolayers of Escherichia coli lipid extract with the binding mechanisms of eosin decyl ester and toluidine blue-O photosensitizers. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2021; 218:112173. [PMID: 33799010 DOI: 10.1016/j.jphotobiol.2021.112173] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 03/04/2021] [Accepted: 03/09/2021] [Indexed: 02/08/2023]
Abstract
Photodynamic damage to the cell envelope can inactivate microorganisms and may be applied to combat super-resistance phenomenon, empowered by the indiscriminate use of antibiotics. Efficiency in microbial inactivation is dependent on the incorporation of photosensitizers (PS) into the bacterial membranes to trigger oxidation reactions under illumination. Herein, Langmuir monolayers of Escherichia coli lipid extract were built to determine the binding mechanisms and oxidation outcomes induced by eosin decyl ester (EosDEC) and toluidine blue-O (TBO) PSs. Surface-pressure isotherms of the E. coli monolayers were expanded upon EosDEC and TBO, suggesting incorporation of both PSs. Fourier-transform infrared spectroscopy (FTIR) of Langmuir-Schaefer (LS) films reveled that the EosDEC and TBO binding mechanisms are dominated by electrostatic interactions with the anionic polar groups, with limited penetration into the chains. Light-irradiation reduced the relative area of E. coli monolayer on TBO, indicating an increased loss of material to the subphase owing to the chain cleavage, generated by contact-dependent reactions with excited states of TBO. In contrast, the increased relative area of E. coli monolayers containing EosDEC suggests lipid hydroperoxidation, which is PS contact-independent. Even considering a small chain penetration, the saturated EosDEC may have partitioned towards saturated reach domains, avoiding direct contact with membrane unsaturations.
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Affiliation(s)
- Lucas G Moreira
- Saõ Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP, 19806-900, Brazil
| | - Alexandre M Almeida
- Saõ Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP, 19806-900, Brazil
| | - Tyler Nield
- Saõ Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP, 19806-900, Brazil; Faculty of Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada
| | - Sabrina A Camacho
- Saõ Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP, 19806-900, Brazil; IFSC, São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, SP 13566-590, Brazil
| | - Pedro H B Aoki
- Saõ Paulo State University (UNESP), School of Sciences, Humanities and Languages, Assis, SP, 19806-900, Brazil.
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17
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Moreira LG, Almeida AM, Camacho SA, Estevão BM, Oliveira ON, Aoki PHB. Chain Cleavage of Bioinspired Bacterial Membranes Photoinduced by Eosin Decyl Ester. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:9578-9585. [PMID: 32672975 DOI: 10.1021/acs.langmuir.0c01600] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Photodynamic therapy (PDT) is promising for bacterial inactivation since cellular internalization of photosensitizers (PS) is not crucial for the treatment effectiveness. Photoinduced damage in the lipid envelope may already induce microbial inactivation, which requires PS capable of easily penetrating into the membrane. Herein, we report on the insertion of the PS eosin decyl ester (EosDec) into Langmuir films of 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE), 1,2-dioleoyl-sn-glycero-3-phospho-(1'-rac-glycerol) (DOPG), and cardiolipin (CLP) used as mimetic systems of bacterial membranes. Surface pressure isotherms and polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS) indicated that the hydrophobic nature of EosDec favored deeper penetration in all the phospholipid monolayers. The incorporation of EosDec led to monolayer expansion, especially in the anionic DOPG and CLP owing to repulsive electrostatic interactions, and induced disorder in the lipid chains. Light irradiation of DOPE, DOPG, and CLP monolayers containing EosDec increased the rate of material loss to the subphase, which is attributed to cleavage of lipid chains triggered by contact-dependent reactions between excited states of EosDec and lipid unsaturations. The latter is key for membrane permeabilization and efficiency in microbial inactivation.
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Affiliation(s)
- Lucas G Moreira
- School of Sciences, Humanities and Languages, São Paulo State University (UNESP), Assis, SP 19806-900, Brazil
| | - Alexandre M Almeida
- School of Sciences, Humanities and Languages, São Paulo State University (UNESP), Assis, SP 19806-900, Brazil
| | - Sabrina A Camacho
- School of Sciences, Humanities and Languages, São Paulo State University (UNESP), Assis, SP 19806-900, Brazil
- IFSC, São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, SP 13566-590, Brazil
| | - Bianca M Estevão
- IFSC, São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, SP 13566-590, Brazil
- Department of Chemistry, State University of Maringá (UEM), Maringá, PR 87020-900, Brazil
| | - Osvaldo N Oliveira
- IFSC, São Carlos Institute of Physics, University of São Paulo (USP), São Carlos, SP 13566-590, Brazil
| | - Pedro H B Aoki
- School of Sciences, Humanities and Languages, São Paulo State University (UNESP), Assis, SP 19806-900, Brazil
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18
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Almeida AM, Oliveira ON, Aoki PHB. Role of Toluidine Blue-O Binding Mechanism for Photooxidation in Bioinspired Bacterial Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:16745-16751. [PMID: 31746210 DOI: 10.1021/acs.langmuir.9b03045] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The alarming increase in bacterial resistance to antibiotics has demanded new strategies for microbial inactivation, which include photodynamic therapy whose activity relies on the photoreaction damage to the microorganism membrane. Herein, the binding mechanisms of the photosensitizer toluidine blue-O (TBO) on simplified models of bacterial membrane with Langmuir monolayers of 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE) and 1,2-dioleoyl-sn-glycero-3-phospho-(1'-rac-glycerol) (DOPG) were correlated to the effects of the photoinduced lipid oxidation. Langmuir monolayers of 1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) were also used as a reference of mammalian membranes. The surface pressure isotherms combined with polarization-modulated infrared reflection absorption spectroscopy revealed that TBO expands DOPC, DOPE, and DOPG monolayers owing to electrostatic interactions with the negatively charged groups in the phospholipids, with a stronger adsorption on DOPG, which has a net surface charge. Light irradiation made the TBO-containing DOPC and DOPE monolayers less unstable as a result of the singlet oxygen (1O2) reaction with the chain unsaturation and hydroperoxide formation. In contrast, the decreased stability of the irradiated TBO-containing DOPG monolayer suggests the cleavage of carbon chains. The anionic nature of DOPG allowed a deeper penetration of TBO into the chain region, favoring contact-dependent reactions between the excited triplet state of TBO and lipid unsaturations or/and hydroperoxide groups, which is the key for the cleavage reactions and further membrane permeabilization.
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Affiliation(s)
- Alexandre M Almeida
- São Paulo State University (UNESP) , School of Sciences, Humanities and Languages , Assis , SP , 19806-900 , Brazil
| | - Osvaldo N Oliveira
- IFSC , São Carlos Institute of Physics, University of São Paulo (USP) , São Carlos , SP 13566-590 , Brazil
| | - Pedro H B Aoki
- São Paulo State University (UNESP) , School of Sciences, Humanities and Languages , Assis , SP , 19806-900 , Brazil
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19
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Gerola AP, Costa PFA, de Morais FAP, Tsubone TM, Caleare AO, Nakamura CV, Brunaldi K, Caetano W, Kimura E, Hioka N. Liposome and polymeric micelle-based delivery systems for chlorophylls: Photodamage effects on Staphylococcus aureus. Colloids Surf B Biointerfaces 2019; 177:487-495. [PMID: 30807963 DOI: 10.1016/j.colsurfb.2019.02.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 01/22/2019] [Accepted: 02/17/2019] [Indexed: 01/25/2023]
Abstract
Chlorophyll derivatives (Chls), loaded in F-127 polymeric micelles and DPPC liposomes as drug delivery systems (DDS), have been shown to be remarkable photosensitizers for photodynamic inactivation (PDI). Assays of photoinactivation of Staphylococcus aureus bacteria (as biological models) showed that the effectiveness of Chls in these nanocarriers is dependent on photobleaching processes, photosensitizer locations in DDS, singlet oxygen quantum yields, and Chl uptake to bacteria. These are factors related to changes in Chl structure, such as the presence of metals, charge, and the phytyl chain. The photodynamic activity was significantly greater for Chls without the phytyl chain, i.e., phorbides derivatives. Furthermore, the inactivation of S. aureus was increased by the use of liposomes compared to micelles. Therefore, this research details and shows the high significance of the Chl structure and delivery system to enhance the photodynamic activity. It also highlights the chlorophylls (particularly phorbides) in liposomes as promising photosensitizers for PDI.
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Affiliation(s)
- Adriana P Gerola
- Chemistry Department, Universidade Estadual de Maringá, Maringá, Paraná, 87020-900, Brazil; Chemistry Department, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, 88040-900, Brazil.
| | - Paulo F A Costa
- Chemistry Department, Universidade Estadual de Maringá, Maringá, Paraná, 87020-900, Brazil; Chemistry Department, Universidade Federal de Santa Catarina, Florianópolis, Santa Catarina, 88040-900, Brazil
| | - Flávia A P de Morais
- Chemistry Department, Universidade Estadual de Maringá, Maringá, Paraná, 87020-900, Brazil
| | - Tayana M Tsubone
- Institute of Chemistry, Universidade de São Paulo, São Paulo, São Paulo, 05508-000, Brazil
| | - Angelo O Caleare
- Department of Clinical Analyzes and Biomedicine, Universidade Estadual de Maringá, Maringá, Paraná, 87020-900, Brazil
| | - Celso V Nakamura
- Department of Physiological Sciences, Universidade Estadual de Maringá, Maringá, Paraná, 87020-900, Brazil
| | - Kellen Brunaldi
- Department of Pharmacy and Pharmacology, Universidade Estadual de Maringá, Maringá, Paraná, 87020-900, Brazil
| | - Wilker Caetano
- Chemistry Department, Universidade Estadual de Maringá, Maringá, Paraná, 87020-900, Brazil
| | - Elza Kimura
- Department of Pharmacy and Pharmacology, Universidade Estadual de Maringá, Maringá, Paraná, 87020-900, Brazil
| | - Noboru Hioka
- Chemistry Department, Universidade Estadual de Maringá, Maringá, Paraná, 87020-900, Brazil
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