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Andrilli LHS, Sebinelli HG, Cominal JG, Bolean M, Hayann L, Millán JL, Ramos AP, Ciancaglini P. Differential effects of the lipidic and ionic microenvironment on NPP1's phosphohydrolase and phosphodiesterase activities. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2024; 1866:184292. [PMID: 38342362 DOI: 10.1016/j.bbamem.2024.184292] [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: 09/17/2023] [Revised: 12/30/2023] [Accepted: 01/31/2024] [Indexed: 02/13/2024]
Abstract
Ecto-nucleotide pyrophosphatase/phosphodiesterase 1 (NPP1) is an enzyme present in matrix vesicles (MV). NPP1 participates on the regulation of bone formation by producing pyrophosphate (PPi) from adenosine triphosphate (ATP). Here, we have used liposomes bearing dipalmitoylphosphatidylcholine (DPPC), sphingomyelin (SM), and cholesterol (Chol) harboring NPP1 to mimic the composition of MV lipid rafts to investigate ionic and lipidic influence on NPP1 activity and mineral propagation. Atomic force microscopy (AFM) revealed that DPPC-liposomes had spherical and smooth surface. The presence of SM and Chol elicited rough and smooth surface, respectively. NPP1 insertion produced protrusions in all the liposome surface. Maximum phosphodiesterase activity emerged at 0.082 M ionic strength, whereas maximum phosphomonohydrolase activity arose at low ionic strength. Phosphoserine-Calcium Phosphate Complex (PS-CPLX) and amorphous calcium-phosphate (ACP) induced mineral propagation in DPPC- and DPPC:SM-liposomes and in DPPC:Chol-liposomes, respectively. Mineral characterization revealed the presence of bands assigned to HAp in the mineral propagated by NPP1 harbored in DPPC-liposomes without nucleators or in DPPC:Chol-liposomes with ACP nucleators. These data show that studying how the ionic and lipidic environment affects NPP1 properties is important, especially for HAp obtained under controlled conditions in vitro.
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Affiliation(s)
- Luiz H S Andrilli
- Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil; Sanford Children's Health Research Center, Sanford Burnham Prebys, La Jolla, CA, USA
| | - Heitor G Sebinelli
- Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Juçara G Cominal
- Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Maytê Bolean
- Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Larwsk Hayann
- Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - José Luís Millán
- Sanford Children's Health Research Center, Sanford Burnham Prebys, La Jolla, CA, USA
| | - Ana P Ramos
- Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil.
| | - Pietro Ciancaglini
- Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil.
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Andrilli LHS, Sebinelli HG, Favarin BZ, Cruz MAE, Ramos AP, Bolean M, Millán JL, Bottini M, Ciancaglini P. NPP1 and TNAP hydrolyze ATP synergistically during biomineralization. Purinergic Signal 2022:10.1007/s11302-022-09882-2. [DOI: 10.1007/s11302-022-09882-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 07/01/2022] [Indexed: 11/30/2022] Open
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Kawasaki R, Ohdake R, Eto T, Yamana K, Nakaya T, Ishida T, Kuroda A, Ikeda A. Photo-triggered cargo release from liposome chlorin e6-bearing pullulan hybrid nanoparticles via membrane permeabilization. RSC Adv 2021; 11:36564-36568. [PMID: 35494347 PMCID: PMC9043425 DOI: 10.1039/d1ra07807k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 11/08/2021] [Indexed: 11/25/2022] Open
Abstract
A liposome chlorin e6-bearing pullulan nanogel hybrid was prepared as a light-triggered payload release platform. The current system enabled manipulation of the release profile of model drugs encapsulated by liposomes. Gelatin hydrogels that comprised hybrid nanoparticles could successfully control the delivery of cargo molecules to human mesenchymal stem cells with light stimuli without injury to the cells. A liposome chlorin e6-bearing pullulan nanogel hybrid was prepared as a light-triggered payload release platform.![]()
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Affiliation(s)
- Riku Kawasaki
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima, 739-8527, Japan
| | - Reo Ohdake
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima, 739-8527, Japan
| | - Takuro Eto
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima, 739-8527, Japan
| | - Keita Yamana
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima, 739-8527, Japan
| | - Toshimi Nakaya
- Digital Monozukuri (Manufacturing) Education and Research Center, Hiroshima University, 3-10-32 Kagamiyama, Higashi-Hiroshima, 739-0046, Japan
| | - Takenori Ishida
- Program for Biotechnology, Graduate School of Integrated Science for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, 739-8530, Japan
| | - Akio Kuroda
- Program for Biotechnology, Graduate School of Integrated Science for Life, Hiroshima University, 1-3-1 Kagamiyama, Higashi-Hiroshima, 739-8530, Japan
| | - Atsushi Ikeda
- Program of Applied Chemistry, Graduate School of Advanced Science and Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima, 739-8527, Japan
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Cruz MAE, Ferreira CR, Tovani CB, de Oliveira FA, Bolean M, Caseli L, Mebarek S, Millán JL, Buchet R, Bottini M, Ciancaglini P, Paula Ramos A. Phosphatidylserine controls calcium phosphate nucleation and growth on lipid monolayers: A physicochemical understanding of matrix vesicle-driven biomineralization. J Struct Biol 2020; 212:107607. [PMID: 32858148 DOI: 10.1016/j.jsb.2020.107607] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 08/15/2020] [Accepted: 08/19/2020] [Indexed: 12/12/2022]
Abstract
Bone biomineralization is an exquisite process by which a hierarchically organized mineral matrix is formed. Growing evidence has uncovered the involvement of one class of extracellular vesicles, named matrix vesicles (MVs), in the formation and delivery of the first mineral nuclei to direct collagen mineralization. MVs are released by mineralization-competent cells equipped with a specific biochemical machinery to initiate mineral formation. However, little is known about the mechanisms by which MVs can trigger this process. Here, we present a combination of in situ investigations and ex vivo analysis of MVs extracted from growing-femurs of chicken embryos to investigate the role played by phosphatidylserine (PS) in the formation of mineral nuclei. By using self-assembled Langmuir monolayers, we reconstructed the nucleation core - a PS-enriched motif thought to trigger mineral formation in the lumen of MVs. In situ infrared spectroscopy of Langmuir monolayers and ex situ analysis by transmission electron microscopy evidenced that mineralization was achieved in supersaturated solutions only when PS was present. PS nucleated amorphous calcium phosphate that converted into biomimetic apatite. By using monolayers containing lipids extracted from native MVs, mineral formation was also evidenced in a manner that resembles the artificial PS-enriched monolayers. PS-enrichment in lipid monolayers creates nanodomains for local increase of supersaturation, leading to the nucleation of ACP at the interface through a multistep process. We posited that PS-mediated nucleation could be a predominant mechanism to produce the very first mineral nuclei during MV-driven bone/cartilage biomineralization.
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Affiliation(s)
- Marcos A E Cruz
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, FFCLRP - Universidade de São Paulo - Departamento de Química, Brazil
| | - Claudio R Ferreira
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, FFCLRP - Universidade de São Paulo - Departamento de Química, Brazil
| | - Camila B Tovani
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, FFCLRP - Universidade de São Paulo - Departamento de Química, Brazil
| | | | - Maytê Bolean
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, FFCLRP - Universidade de São Paulo - Departamento de Química, Brazil
| | - Luciano Caseli
- Institute of Environmental, Chemical and Pharmaceutical Sciences - Federal University of Sao Paulo, Brazil
| | - Saida Mebarek
- Universite de Lyon, ICBMS UMR 5246 CNRS, Villeurbanne, France
| | - José Luis Millán
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Rene Buchet
- Universite de Lyon, ICBMS UMR 5246 CNRS, Villeurbanne, France
| | - Massimo Bottini
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA; Department of Experimental Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - Pietro Ciancaglini
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, FFCLRP - Universidade de São Paulo - Departamento de Química, Brazil.
| | - Ana Paula Ramos
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, FFCLRP - Universidade de São Paulo - Departamento de Química, Brazil.
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Jaroque GN, Sartorelli P, Caseli L. The effect of the monocyclic monoterpene tertiary alcohol γ-terpineol on biointerfaces containing cholesterol. Chem Phys Lipids 2020; 230:104915. [DOI: 10.1016/j.chemphyslip.2020.104915] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/19/2020] [Accepted: 04/19/2020] [Indexed: 01/16/2023]
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Favarin BZ, Bolean M, Ramos AP, Magrini A, Rosato N, Millán JL, Bottini M, Costa-Filho AJ, Ciancaglini P. Lipid composition modulates ATP hydrolysis and calcium phosphate mineral propagation by TNAP-harboring proteoliposomes. Arch Biochem Biophys 2020; 691:108482. [PMID: 32710882 DOI: 10.1016/j.abb.2020.108482] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/09/2020] [Accepted: 06/22/2020] [Indexed: 01/13/2023]
Abstract
Bone biomineralization is mediated by a special class of extracellular vesicles, named matrix vesicles (MVs), released by osteogenic cells. The MV membrane is enriched in sphingomyelin (SM), cholesterol (Chol) and tissue non-specific alkaline phosphatase (TNAP) compared with the parent cells' plasma membrane. TNAP is an ATP phosphohydrolase bound to cell and MV membranes via a glycosylphosphatidylinositol (GPI) anchor. Previous studies have shown that the lipid microenvironment influences the catalytic activity of enzymes incorporated into lipid bilayers. However, there is a lack of information about how the lipid microenvironment controls the ability of MV membrane-bound enzymes to induce mineral precipitation. Herein, we used TNAP-harboring proteoliposomes made of either pure dimyristoylphosphatidylcholine (DMPC) or DMPC mixed with either Chol, SM or both of them as MV biomimetic systems to evaluate how the composition modulates the lipid microenvironment and, in turn, TNAP incorporation into the lipid bilayer by means of calorimetry. These results were correlated with the proteoliposomes' catalytic activity and ability to induce the precipitation of amorphous calcium phosphate (ACP) in vitro. DMPC:SM proteoliposomes displayed the highest efficiency of mineral propagation, apparent affinity for ATP and substrate hydrolysis efficiency, which correlated with their highest degree of membrane organization (highest ΔH), among the tested proteoliposomes. Results obtained from turbidimetry and Fourier transformed infrared (FTIR) spectroscopy showed that the tested proteoliposomes induced ACP precipitation with the order DMPC:SM>DMPC:Chol:SM≈DMPC:Chol>DMPC which correlated with the lipid organization and the presence of SM in the proteoliposome membrane. Our study arises important insights regarding the physical properties and role of lipid organization in MV-mediated mineralization.
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Affiliation(s)
- B Z Favarin
- Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil; Department of Physics, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - M Bolean
- Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - A P Ramos
- Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - A Magrini
- Department of Biopathology and Imaging Diagnostics, University of Rome Tor Vergata, Rome, Italy
| | - N Rosato
- Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
| | - J L Millán
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - M Bottini
- Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy; Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA.
| | - A J Costa-Filho
- Department of Physics, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - P Ciancaglini
- Department of Chemistry, FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil.
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Bolean M, Izzi B, van Kerckhoven S, Bottini M, Ramos AP, Millán JL, Hoylaerts MF, Ciancaglini P. Matrix vesicle biomimetics harboring Annexin A5 and alkaline phosphatase bind to the native collagen matrix produced by mineralizing vascular smooth muscle cells. Biochim Biophys Acta Gen Subj 2020; 1864:129629. [PMID: 32360152 DOI: 10.1016/j.bbagen.2020.129629] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 04/13/2020] [Accepted: 04/28/2020] [Indexed: 10/24/2022]
Abstract
BACKGOUND Vascular smooth muscle cells (VSMCs) transdifferentiated ectopically trigger vascular calcifications, contributing to clinical cardiovascular disease in the aging population. AnxA5 and TNAP play a crucial role in (patho)physiological mineralization. METHODS We performed affinity studies between DPPC and 9:1 DPPC:DPPS-proteoliposomes carrying AnxA5 and/or TNAP and different types of collagen matrix: type I, II, I + III and native collagenous extracellular matrix (ECM) produced from VSMCs with or without differentiation, to simulate ectopic calcification conditions. RESULTS AnxA5-proteoliposomes had the highest affinity for collagens, specially for type II. TNAP-proteoliposomes bound poorly and the simultaneous presence of TNAP in the AnxA5-proteoliposomes disturbed interactions between AnxA5 and collagen. DPPC AnxA5-proteoliposomes affinities for ECM from transdifferentiating cells went up 2-fold compared to that from native VSMCs. The affinities of DPPC:DPPS-proteoliposomes were high for ECM from VSMCs with or without differentiation, underscoring a synergistic effect between AnxA5 and DPPS. Co-localization studies uncovered binding of proteoliposomes harboring AnxA5 or TNAP+AnxA5 to various regions of the ECM, not limited to type II collagen. CONCLUSION AnxA5-proteoliposomes showed the highest affinities for type II collagen, deposited during chondrocyte mineralization in joint cartilage. TNAP in the lipid/protein microenvironment disturbs interactions between AnxA5 and collagen. These findings support the hypothesis that TNAP is cleaved from the MVs membrane just before ECM binding, such facilitating MV anchoring to ECM via AnxA5 interaction. GENERAL SIGNIFICANCE Proteoliposomes as MV biomimetics are useful in the understanding of mechanisms that regulate the mineralization process and may be essential for the development of novel therapeutic strategies to prevent or inhibit ectopic mineralization.
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Affiliation(s)
- Maytê Bolean
- Department of Chemistry, FFCLRP-USP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Benedetta Izzi
- Department of Epidemiology and Prevention, IRCCS NEUROMED, Pozzilli, IS, Italy
| | | | - Massimo Bottini
- University of Rome Tor Vergata, Department of Experimental Medicine and Surgery, Roma, Italy; Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Ana Paula Ramos
- Department of Chemistry, FFCLRP-USP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - José Luis Millán
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Marc F Hoylaerts
- Center for Molecular and Vascular Biology, Department of Cardiovascular Sciences, University of Leuven, Leuven, Belgium
| | - Pietro Ciancaglini
- Department of Chemistry, FFCLRP-USP, University of São Paulo, Ribeirão Preto, SP, Brazil.
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Localization of Annexin A6 in Matrix Vesicles During Physiological Mineralization. Int J Mol Sci 2020; 21:ijms21041367. [PMID: 32085611 PMCID: PMC7072960 DOI: 10.3390/ijms21041367] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 02/07/2020] [Accepted: 02/14/2020] [Indexed: 12/25/2022] Open
Abstract
Annexin A6 (AnxA6) is the largest member of the annexin family of proteins present in matrix vesicles (MVs). MVs are a special class of extracellular vesicles that serve as a nucleation site during cartilage, bone, and mantle dentin mineralization. In this study, we assessed the localization of AnxA6 in the MV membrane bilayer using native MVs and MV biomimetics. Biochemical analyses revealed that AnxA6 in MVs can be divided into three distinct groups. The first group corresponds to Ca2+-bound AnxA6 interacting with the inner leaflet of the MV membrane. The second group corresponds to AnxA6 localized on the surface of the outer leaflet. The third group corresponds to AnxA6 inserted in the membrane's hydrophobic bilayer and co-localized with cholesterol (Chol). Using monolayers and proteoliposomes composed of either dipalmitoylphosphatidylcholine (DPPC) to mimic the outer leaflet of the MV membrane bilayer or a 9:1 DPPC:dipalmitoylphosphatidylserine (DPPS) mixture to mimic the inner leaflet, with and without Ca2+, we confirmed that, in agreement with the biochemical data, AnxA6 interacted differently with the MV membrane. Thermodynamic analyses based on the measurement of surface pressure exclusion (πexc), enthalpy (ΔH), and phase transition cooperativity (Δt1/2) showed that AnxA6 interacted with DPPC and 9:1 DPPC:DPPS systems and that this interaction increased in the presence of Chol. The selective recruitment of AnxA6 by Chol was observed in MVs as probed by the addition of methyl-β-cyclodextrin (MβCD). AnxA6-lipid interaction was also Ca2+-dependent, as evidenced by the increase in πexc in negatively charged 9:1 DPPC:DPPS monolayers and the decrease in ΔH in 9:1 DPPC:DPPS proteoliposomes caused by the addition of AnxA6 in the presence of Ca2+ compared to DPPC zwitterionic bilayers. The interaction of AnxA6 with DPPC and 9:1 DPPC:DPPS systems was distinct even in the absence of Ca2+ as observed by the larger change in Δt1/2 in 9:1 DPPC:DPPS vesicles as compared to DPPC vesicles. Protrusions on the surface of DPPC proteoliposomes observed by atomic force microscopy suggested that oligomeric AnxA6 interacted with the vesicle membrane. Further work is needed to delineate possible functions of AnxA6 at its different localizations and ways of interaction with lipids.
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Derradi R, Bolean M, Simão A, Caseli L, Millán J, Bottini M, Ciancaglini P, Ramos A. Cholesterol Regulates the Incorporation and Catalytic Activity of Tissue-Nonspecific Alkaline Phosphatase in DPPC Monolayers. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:15232-15241. [PMID: 31702926 PMCID: PMC7105399 DOI: 10.1021/acs.langmuir.9b02590] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Matrix vesicles (MVs) are a special class of extracellular vesicles that drive bone and dentin mineralization by providing the essential enzymes and ions for the nucleation and propagation of mineral crystals. Tissue-nonspecific alkaline phosphatase (TNAP) is an integral protein of MV membrane and participates in biomineralization by hydrolyzing extracellular pyrophosphate (PPi), a strong mineralization inhibitor, and forming inorganic phosphate (Pi), necessary for the growth of mineral crystals inside MVs and their propagation once released in the extracellular matrix. MV membrane is enriched in cholesterol (CHOL), which influences the incorporation and activity of integral proteins in biologic membranes; however, how CHOL controls the incorporation and activity of TNAP in MV membrane has not yet been elucidated. In the present study, Langmuir monolayers were used as a MV membrane biomimetic model to assess how CHOL affects TNAP incorporation and activity. Surface pressure-area (π-A) isotherms of binary dipalmitoilphosphatidylcholine (DPPC)/CHOL monolayers showed that TNAP incorporation increases with CHOL concentration. Infrared spectroscopy showed that CHOL influences the conformation and orientation of the enzyme. Optical-fluorescence micrographs of the monolayers revealed the tendency of TNAP to incorporate into CHOL-rich microdomains. These data suggest that TNAP penetrates more efficiently and occupies a higher surface area into monolayers with a lower CHOL concentration due to the higher membrane fluidity. However, the quantity of enzyme transferred to solid supports as well as the enzymatic activity were higher using monolayers with a higher CHOL concentration due to increased rigidity that changes the enzyme orientation at the air-solid interface. These data provide new insights regarding the interfacial behavior of TNAP and CHOL in MVs and shed light on the biochemical and biophysical processes occurring in the MV membrane during biomineralization at the molecular level.
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Affiliation(s)
- R. Derradi
- Chemistry Department, Faculty of Philosophy, Sciences and Letters at Ribeirao Preto, Department of Chemistry, University of Sao Paulo, Avenida Bandeirantes, 3900, Monte Alegre, Ribeirao Preto, SP, Brazil, 14040-901
| | - M. Bolean
- Chemistry Department, Faculty of Philosophy, Sciences and Letters at Ribeirao Preto, Department of Chemistry, University of Sao Paulo, Avenida Bandeirantes, 3900, Monte Alegre, Ribeirao Preto, SP, Brazil, 14040-901
| | - A.M.S. Simão
- Chemistry Department, Faculty of Philosophy, Sciences and Letters at Ribeirao Preto, Department of Chemistry, University of Sao Paulo, Avenida Bandeirantes, 3900, Monte Alegre, Ribeirao Preto, SP, Brazil, 14040-901
| | - L. Caseli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of Sao Paulo, Rua Sao Nicolau, 210, Centro, Diadema, SP, Brazil, 09913-030
| | - J.L. Millán
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - M. Bottini
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
- Department of Experimental Medicine, University of Rome Tor Vergata, 00133 Rome, Italy
| | - P. Ciancaglini
- Chemistry Department, Faculty of Philosophy, Sciences and Letters at Ribeirao Preto, Department of Chemistry, University of Sao Paulo, Avenida Bandeirantes, 3900, Monte Alegre, Ribeirao Preto, SP, Brazil, 14040-901
| | - A.P. Ramos
- Chemistry Department, Faculty of Philosophy, Sciences and Letters at Ribeirao Preto, Department of Chemistry, University of Sao Paulo, Avenida Bandeirantes, 3900, Monte Alegre, Ribeirao Preto, SP, Brazil, 14040-901
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Simão AMS, Bolean M, Favarin BZ, Veschi EA, Tovani CB, Ramos AP, Bottini M, Buchet R, Millán JL, Ciancaglini P. Lipid microenvironment affects the ability of proteoliposomes harboring TNAP to induce mineralization without nucleators. J Bone Miner Metab 2019; 37:607-613. [PMID: 30324534 PMCID: PMC6465158 DOI: 10.1007/s00774-018-0962-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 09/19/2018] [Indexed: 12/13/2022]
Abstract
Tissue-nonspecific alkaline phosphatase (TNAP), a glycosylphosphatidylinositol-anchored ectoenzyme present on the membrane of matrix vesicles (MVs), hydrolyzes the mineralization inhibitor inorganic pyrophosphate as well as ATP to generate the inorganic phosphate needed for apatite formation. Herein, we used proteoliposomes harboring TNAP as MV biomimetics with or without nucleators of mineral formation (amorphous calcium phosphate and complexes with phosphatidylserine) to assess the role of the MVs' membrane lipid composition on TNAP activity by means of turbidity assay and FTIR analysis. We found that TNAP-proteoliposomes have the ability to induce mineralization even in the absence of mineral nucleators. We also found that the addition of cholesterol or sphingomyelin to TNAP-proteoliposomes composed of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine reduced the ability of TNAP to induce biomineralization. Our results suggest that the lipid microenvironment is essential for the induction and propagation of minerals mediated by TNAP.
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Affiliation(s)
- Ana Maria Sper Simão
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da Universidade de São Paulo (FFCLRP-USP), Av. Bandeirantes 3900, Ribeirão Preto, SP, 14040-901, Brazil
| | - Maytê Bolean
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da Universidade de São Paulo (FFCLRP-USP), Av. Bandeirantes 3900, Ribeirão Preto, SP, 14040-901, Brazil
| | - Bruno Zoccaratto Favarin
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da Universidade de São Paulo (FFCLRP-USP), Av. Bandeirantes 3900, Ribeirão Preto, SP, 14040-901, Brazil
| | - Ekeveliny Amabile Veschi
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da Universidade de São Paulo (FFCLRP-USP), Av. Bandeirantes 3900, Ribeirão Preto, SP, 14040-901, Brazil
| | - Camila Bussola Tovani
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da Universidade de São Paulo (FFCLRP-USP), Av. Bandeirantes 3900, Ribeirão Preto, SP, 14040-901, Brazil
| | - Ana Paula Ramos
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da Universidade de São Paulo (FFCLRP-USP), Av. Bandeirantes 3900, Ribeirão Preto, SP, 14040-901, Brazil
| | - Massimo Bottini
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, 00133, Rome, Italy
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, 92037, USA
| | - Rene Buchet
- UFR Chimie Biochimie, Universite Lyon 1, 69 622, Villeurbanne Cedex, France
- ICBMS, UMR 5246, CNRS, 69 622, Villeurbanne Cedex, France
- INSA, Lyon, 69 622, Villeurbanne Cedex, France
- CPE, Lyon, 69 622, Villeurbanne Cedex, France
- Universite de Lyon, 69 622, Villeurbanne Cedex, France
| | - José Luis Millán
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, 92037, USA
| | - Pietro Ciancaglini
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da Universidade de São Paulo (FFCLRP-USP), Av. Bandeirantes 3900, Ribeirão Preto, SP, 14040-901, Brazil.
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Chen L, Liang R, Wang Y, Yokoyama W, Chen M, Zhong F. Characterizations on the Stability and Release Properties of β-ionone Loaded Thermosensitive Liposomes (TSLs). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8336-8345. [PMID: 29847116 DOI: 10.1021/acs.jafc.7b06130] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Liposomes with phase transition temperatures, Tm, near pathogenic site temperature are potential chemoprophylactic delivery vehicles. We prepared and characterized the thermal properties of liposomes composed of 1,2-dipalmitoyl- sn-glycero-3-phosphocholine (DPPC) and hydrogenated soy phosphatidylcholine (HSPC) incorporating β-ionone with Tm at 42 °C. Liposomes with β-ionone/lipid ratio (w/w) of 1:20 and 1:8 had the necessary stability and released most of the β-ionone. The molecular architecture surrounding Tm was studied by fluorescent probes, Raman spectroscopy, and differential scanning calorimeter (DSC). β-Ionone was found to be preferentially located in the deep regions of the lipid bilayer (toward the long chain alkyl of the lipid) at moderate loading. The results showed that β-ionone encapsulated liposomes have a superior release at higher loading amount. Increasing β-ionone leads to disorder in the liquid crystalline state and accelerates the release rate. These studies provide information on the membrane structural properties of β-ionone loaded liposomes that guide rational bioactive molecular delivery systems design for health products.
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Affiliation(s)
- Ling Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education , Jiangnan University , Wuxi 214122 , P.R. China
- School of Food Science and Technology , Jiangnan University , Wuxi 214122 , P.R. China
| | - Rong Liang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering , Jiangnan University , Wuxi 214122 , P.R. China
| | - Yihan Wang
- Zhejiang Institute for Food and Drug Control , Zhejiang 310000 , P.R. China
| | - Wallace Yokoyama
- Western Regional Research Center, ARS , USDA , Albany , California 94710 , United States
| | - Maoshen Chen
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education , Jiangnan University , Wuxi 214122 , P.R. China
- School of Food Science and Technology , Jiangnan University , Wuxi 214122 , P.R. China
| | - Fang Zhong
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education , Jiangnan University , Wuxi 214122 , P.R. China
- School of Food Science and Technology , Jiangnan University , Wuxi 214122 , P.R. China
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12
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Munaweera I, Shaikh S, Maples D, Nigatu AS, Sethuraman SN, Ranjan A, Greenberg DE, Chopra R. Temperature-sensitive liposomal ciprofloxacin for the treatment of biofilm on infected metal implants using alternating magnetic fields. Int J Hyperthermia 2018; 34:189-200. [PMID: 29498309 PMCID: PMC6034688 DOI: 10.1080/02656736.2017.1422028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Implants are commonly used as a replacement for damaged tissue. Many implants, such as pacemakers, chronic electrode implants, bone screws, and prosthetic joints, are made of or contain metal. Infections are one of the difficult to treat complications associated with metal implants due to the formation of biofilm, a thick aggregate of extracellular polymeric substances (EPS) produced by the bacteria. In this study, we treated a metal prosthesis infection model using a combination of ciprofloxacin-loaded temperature-sensitive liposomes (TSL) and alternating magnetic fields (AMF). AMF heating is used to disrupt the biofilm and release the ciprofloxacin-loaded TSL. The three main objectives of this study were to (1) investigate low- and high-temperature-sensitive liposomes (LTSLs and HTSLs) containing the antimicrobial agent ciprofloxacin for temperature-mediated antibiotic release, (2) characterise in vitro ciprofloxacin release and stability and (3) study the efficacy of combining liposomal ciprofloxacin with AMF against Pseudomonas aeruginosa biofilms grown on metal washers. The release of ciprofloxacin from LTSL and HTSL was assessed in physiological buffers. Results demonstrated a lower transition temperature for both LTSL and HTSL formulations when incubated in serum as compared with PBS, with a more pronounced impact on the HTSLs. Upon combining AMF with temperature-sensitive liposomal ciprofloxacin, a 3 log reduction in CFU of Pseudomonas aeruginosa in biofilm was observed. Our initial studies suggest that AMF exposure on metal implants can trigger release of antibiotic from temperature sensitive liposomes for a potent bactericidal effect on biofilm.
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Affiliation(s)
- Imalka Munaweera
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sumbul Shaikh
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Danny Maples
- Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Adane S. Nigatu
- Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | | | - Ashish Ranjan
- Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - David E. Greenberg
- Division of Infectious Diseases, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Rajiv Chopra
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
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13
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Bottini M, Mebarek S, Anderson KL, Strzelecka-Kiliszek A, Bozycki L, Simão AMS, Bolean M, Ciancaglini P, Pikula JB, Pikula S, Magne D, Volkmann N, Hanein D, Millán JL, Buchet R. Matrix vesicles from chondrocytes and osteoblasts: Their biogenesis, properties, functions and biomimetic models. Biochim Biophys Acta Gen Subj 2018; 1862:532-546. [PMID: 29108957 PMCID: PMC5801150 DOI: 10.1016/j.bbagen.2017.11.005] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 10/28/2017] [Accepted: 11/01/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Matrix vesicles (MVs) are released from hypertrophic chondrocytes and from mature osteoblasts, the cells responsible for endochondral and membranous ossification. Under pathological conditions, they can also be released from cells of non-skeletal tissues such as vascular smooth muscle cells. MVs are extracellular vesicles of approximately 100-300nm diameter harboring the biochemical machinery needed to induce mineralization. SCOPE OF THE REVIEW The review comprehensively delineates our current knowledge of MV biology and highlights open questions aiming to stimulate further research. The review is constructed as a series of questions addressing issues of MVs ranging from their biogenesis and functions, to biomimetic models. It critically evaluates experimental data including their isolation and characterization methods, like lipidomics, proteomics, transmission electron microscopy, atomic force microscopy and proteoliposome models mimicking MVs. MAJOR CONCLUSIONS MVs have a relatively well-defined function as initiators of mineralization. They bind to collagen and their composition reflects the composition of lipid rafts. We call attention to the as yet unclear mechanisms leading to the biogenesis of MVs, and how minerals form and when they are formed. We discuss the prospects of employing upcoming experimental models to deepen our understanding of MV-mediated mineralization and mineralization disorders such as the use of reconstituted lipid vesicles, proteoliposomes and, native sample preparations and high-resolution technologies. GENERAL SIGNIFICANCE MVs have been extensively investigated owing to their roles in skeletal and ectopic mineralization. MVs serve as a model system for lipid raft structures, and for the mechanisms of genesis and release of extracellular vesicles.
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Affiliation(s)
- Massimo Bottini
- University of Rome Tor Vergata, Department of Experimental Medicine and Surgery, 00133 Roma, Italy; Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Saida Mebarek
- Universite Lyon 1, UFR Chimie Biochimie, 69 622 Villeurbanne Cedex, France; ICBMS UMR 5246 CNRS, 69 622 Villeurbanne Cedex, France; INSA, Lyon, 69 622 Villeurbanne Cedex, France; CPE, Lyon, 69 622 Villeurbanne Cedex, France; Universite de Lyon, 69 622 Villeurbanne Cedex, France
| | - Karen L Anderson
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Agnieszka Strzelecka-Kiliszek
- Nencki Institute of Experimental Biology, Department of Biochemistry, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Lukasz Bozycki
- Nencki Institute of Experimental Biology, Department of Biochemistry, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Ana Maria Sper Simão
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, USP, Departamento de Química, 14040-901 Ribeirão Preto, SP, Brazil
| | - Maytê Bolean
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, USP, Departamento de Química, 14040-901 Ribeirão Preto, SP, Brazil
| | - Pietro Ciancaglini
- Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, USP, Departamento de Química, 14040-901 Ribeirão Preto, SP, Brazil
| | - Joanna Bandorowicz Pikula
- Nencki Institute of Experimental Biology, Department of Biochemistry, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Slawomir Pikula
- Nencki Institute of Experimental Biology, Department of Biochemistry, Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - David Magne
- Universite Lyon 1, UFR Chimie Biochimie, 69 622 Villeurbanne Cedex, France; ICBMS UMR 5246 CNRS, 69 622 Villeurbanne Cedex, France; INSA, Lyon, 69 622 Villeurbanne Cedex, France; CPE, Lyon, 69 622 Villeurbanne Cedex, France; Universite de Lyon, 69 622 Villeurbanne Cedex, France
| | - Niels Volkmann
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Dorit Hanein
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - José Luis Millán
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Rene Buchet
- Universite Lyon 1, UFR Chimie Biochimie, 69 622 Villeurbanne Cedex, France; ICBMS UMR 5246 CNRS, 69 622 Villeurbanne Cedex, France; INSA, Lyon, 69 622 Villeurbanne Cedex, France; CPE, Lyon, 69 622 Villeurbanne Cedex, France; Universite de Lyon, 69 622 Villeurbanne Cedex, France.
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14
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Bolean M, Borin IA, Simão AMS, Bottini M, Bagatolli LA, Hoylaerts MF, Millán JL, Ciancaglini P. Topographic analysis by atomic force microscopy of proteoliposomes matrix vesicle mimetics harboring TNAP and AnxA5. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2017; 1859:1911-1920. [PMID: 28549727 PMCID: PMC5793902 DOI: 10.1016/j.bbamem.2017.05.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 05/02/2017] [Accepted: 05/17/2017] [Indexed: 01/28/2023]
Abstract
Atomic force microscopy (AFM) is one of the most commonly used scanning probe microscopy techniques for nanoscale imaging and characterization of lipid-based particles. However, obtaining images of such particles using AFM is still a challenge. The present study extends the capabilities of AFM to the characterization of proteoliposomes, a special class of liposomes composed of lipids and proteins, mimicking matrix vesicles (MVs) involved in the biomineralization process. To this end, proteoliposomes were synthesized, composed of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) and 1,2-dipalmitoyl-sn-glycero-3-phospho-l-serine (DPPS), with inserted tissue-nonspecific alkaline phosphatase (TNAP) and/or annexin V (AnxA5), both characteristic proteins of osteoblast-derived MVs. We then aimed to study how TNAP and AnxA5 insertion affects the proteoliposomes' membrane properties and, in turn, interactions with type II collagen, thus mimicking early MV activity during biomineralization. AFM images of these proteoliposomes, acquired in dynamic mode, revealed the presence of surface protrusions with distinct viscoelasticity, thus suggesting that the presence of the proteins induced local changes in membrane fluidity. Surface protrusions were measurable in TNAP-proteoliposomes but barely detectable in AnxA5-proteoliposomes. More complex surface structures were observed for proteoliposomes harboring both TNAP and AnxA5 concomitantly, resulting in a lower affinity for type II collagen fibers compared to proteoliposomes harboring AnxA5 alone. The present study achieved the topographic analysis of lipid vesicles by direct visualization of structural changes, resulting from protein incorporation, without the need for fluorescent probes.
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Affiliation(s)
- Maytê Bolean
- Depto. Química, FFCLRP-USP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
| | - Ivana A Borin
- Depto. Química, FFCLRP-USP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Ana M S Simão
- Depto. Química, FFCLRP-USP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Massimo Bottini
- Department of Experimental Medicine and Surgery, University of Rome Tor Vergata, Rome, Italy; Inflammatory and Infectious Disease Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Luis A Bagatolli
- MEMPHYS - Center for Biomembrane Physics, University of Southern Denmark, Odense, Denmark
| | - Marc F Hoylaerts
- Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, University of Leuven, Leuven, Belgium
| | - José L Millán
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Pietro Ciancaglini
- Depto. Química, FFCLRP-USP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
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15
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Abstract
During the process of endochondral bone formation, chondrocytes and osteoblasts mineralize their extracellular matrix (ECM) by promoting the synthesis of hydroxyapatite (HA) seed crystals in the sheltered interior of membrane-limited matrix vesicles (MVs). Several lipid and proteins present in the membrane of the MVs mediate the interactions of MVs with the ECM and regulate the initial mineral deposition and posterior propagation. Among the proteins of MV membranes, ion transporters control the availability of phosphate and calcium needed for initial HA deposition. Phosphatases (orphan phosphatase 1, ectonucleotide pyrophosphatase/phosphodiesterase 1 and tissue-nonspecific alkaline phosphatase) play a crucial role in controlling the inorganic pyrophosphate/inorganic phosphate ratio that allows MV-mediated initiation of mineralization. The lipidic microenvironment can help in the nucleation process of first crystals and also plays a crucial physiological role in the function of MV-associated enzymes and transporters (type III sodium-dependent phosphate transporters, annexins and Na+/K+ ATPase). The whole process is mediated and regulated by the action of several molecules and steps, which make the process complex and highly regulated. Liposomes and proteoliposomes, as models of biological membranes, facilitate the understanding of lipid-protein interactions with emphasis on the properties of physicochemical and biochemical processes. In this review, we discuss the use of proteoliposomes as multiple protein carrier systems intended to mimic the various functions of MVs during the initiation and propagation of mineral growth in the course of biomineralization. We focus on studies applying biophysical tools to characterize the biomimetic models in order to gain an understanding of the importance of lipid-protein and lipid-lipid interfaces throughout the process.
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16
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Effect of the presence of cholesterol in the interfacial microenvironment on the modulation of the alkaline phosphatase activity during in vitro mineralization. Colloids Surf B Biointerfaces 2017; 155:466-476. [PMID: 28472750 DOI: 10.1016/j.colsurfb.2017.04.051] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 04/20/2017] [Accepted: 04/25/2017] [Indexed: 01/17/2023]
Abstract
Mineralization of the skeleton starts within cell-derived matrix vesicles (MVs); then, minerals propagate to the extracellular collagenous matrix. Tissue-nonspecific alkaline phosphatase (TNAP) degrades inorganic pyrophosphate (PPi), a potent inhibitor of mineralization, and contributes Pi (Phosphate) from ATP to initiate mineralization. Compared to the plasma membrane, MVs are rich in Cholesterol (Chol) (∼32%) and TNAP, but how Chol influences TNAP activity remains unclear. We have reconstituted TNAP in liposomes of dipalmitoylphosphatidylcholine (DPPC) or dioleoylphosphatidylcholine (DOPC) combined with Chol or its derivatives Cholestenone (Achol) and Ergosterol (Ergo). DPPC plus 36% sterols in liposome increased the catalytic activity of TNAP toward ATP. The presence of Chol also increased the propagation of minerals by 3.4-fold. The catalytic efficiency of TNAP toward ATP was fourfold lower in DOPC proteoliposomes as compared to DPPC proteoliposomes. DOPC proteoliposomes also increased biomineralization by 2.8-fold as compared to DPPC proteoliposomes. TNAP catalyzed the hydrolysis of ATP more efficiently in the case of the proteoliposome consisting of DOPC with 36% Chol. The same behavior emerged with Achol and Ergo. The organization of the lipid and the structure of the sterol influenced the surface tension (γ), the TNAP phosphohydrolytic activity in the monolayer, and the TNAP catalytic efficiency in the bilayers. Membranes in the Lα phase (Achol) provided better kinetic parameters as compared to membranes in the Lo phase (Chol and Ergo). In conclusion, the physical properties and the lateral organization of lipids in proteoliposomes are crucial to control mineral propagation mediated by TNAP activity during mineralization.
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17
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Ramos AP, Cruz MAE, Tovani CB, Ciancaglini P. Biomedical applications of nanotechnology. Biophys Rev 2017; 9:79-89. [PMID: 28510082 PMCID: PMC5425815 DOI: 10.1007/s12551-016-0246-2] [Citation(s) in RCA: 138] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 12/26/2016] [Indexed: 02/03/2023] Open
Abstract
The ability to investigate substances at the molecular level has boosted the search for materials with outstanding properties for use in medicine. The application of these novel materials has generated the new research field of nanobiotechnology, which plays a central role in disease diagnosis, drug design and delivery, and implants. In this review, we provide an overview of the use of metallic and metal oxide nanoparticles, carbon-nanotubes, liposomes, and nanopatterned flat surfaces for specific biomedical applications. The chemical and physical properties of the surface of these materials allow their use in diagnosis, biosensing and bioimaging devices, drug delivery systems, and bone substitute implants. The toxicology of these particles is also discussed in the light of a new field referred to as nanotoxicology that studies the surface effects emerging from nanostructured materials.
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Affiliation(s)
- Ana P Ramos
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), 14040-901, Ribeirão Preto, SP, Brazil.
| | - Marcos A E Cruz
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), 14040-901, Ribeirão Preto, SP, Brazil
| | - Camila B Tovani
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), 14040-901, Ribeirão Preto, SP, Brazil
| | - Pietro Ciancaglini
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), 14040-901, Ribeirão Preto, SP, Brazil
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18
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Garcia AF, Simão AMS, Bolean M, Hoylaerts MF, Millán JL, Ciancaglini P, Costa-Filho AJ. Effects of GPI-anchored TNAP on the dynamic structure of model membranes. Phys Chem Chem Phys 2016; 17:26295-301. [PMID: 26389140 DOI: 10.1039/c5cp02377g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Tissue-nonspecific alkaline phosphatase (TNAP) plays a crucial role during skeletal mineralization, and TNAP deficiency leads to the soft bone disease hypophosphatasia. TNAP is anchored to the external surface of the plasma membranes by means of a GPI (glycosylphosphatidylinositol) anchor. Membrane-anchored and solubilized TNAP displays different kinetic properties against physiological substrates, indicating that membrane anchoring influences the enzyme function. Here, we used Electron Spin Resonance (ESR) measurements along with spin labeled phospholipids to probe the possible dynamic changes prompted by the interaction of GPI-anchored TNAP with model membranes. The goal was to systematically analyze the ESR data in terms of line shape changes and of alterations in parameters such as rotational diffusion rates and order parameters obtained from non-linear least-squares simulations of the ESR spectra of probes incorporated into DPPC liposomes and proteoliposomes. Overall, the presence of TNAP increased the dynamics and decreased the ordering in the three distinct regions probed by the spin labeled lipids DOPTC (headgroup), and 5- and 16-PCSL (acyl chains). The largest change was observed for 16-PCSL, thus suggesting that GPI-anchored TNAP can give rise to long reaching modifications that could influence membrane processes halfway through the bilayer.
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Affiliation(s)
- A F Garcia
- Laboratório de Biofísica Molecular, Departamento de Física, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, 14040-901, Ribeirão Preto, SP, Brazil.
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19
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Ishigami T, Tauchi A, Suga K, Umakoshi H. Effect of Boundary Edge in DOPC/DPPC/Cholesterol Liposomes on Acceleration of l-Histidine Preferential Adsorption. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:6011-6019. [PMID: 27232976 DOI: 10.1021/acs.langmuir.5b04626] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In order to investigate the interaction of hydrophilic molecules with liposomal membranes, we employed 1-(4-(trimethylamino)phenyl)-6-phenyl-1,3,5-hexatriene and 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine-N-(5-dimethylamino-1-naphthalenesulfonyl) as fluorescent probes to monitor the surface regions of the membrane, and the results for various liposomes were plotted in correlation diagrams. According to the formation of a variety of phase states, different tendencies of decreasing surface hydrophobicity were observed in the liposomes that were modified with high concentrations of cholesterol or in the liposomes that were composed of ternary components. These liposomes, with hydrophobic surfaces, also showed preferential adsorption of l-histidine (l-His), and the hydrophobicity of the liposomal membrane at the surface changed during l-His adsorption regardless of the initial liposomal properties. Furthermore, we revealed that accelerated adsorption of l-His and preferential binding was induced in ternary liposomes forming boundaries between two separate phases.
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Affiliation(s)
- Takaaki Ishigami
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Atsushi Tauchi
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Keishi Suga
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
| | - Hiroshi Umakoshi
- Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University , 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
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20
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Malekar SA, Sarode AL, Bach AC, Bose A, Bothun G, Worthen DR. Radio Frequency-Activated Nanoliposomes for Controlled Combination Drug Delivery. AAPS PharmSciTech 2015; 16:1335-43. [PMID: 25899799 DOI: 10.1208/s12249-015-0323-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 04/12/2015] [Indexed: 11/30/2022] Open
Abstract
This work was conducted in order to design, characterize, and evaluate stable liposomes containing the hydrophobic drug raloxifene HCl (RAL) and hydrophilic doxycycline HCl (DOX), two potentially synergistic agents for treating osteoporosis and other bone lesions, in conjunction with a radio frequency-induced, hydrophobic magnetic nanoparticle-dependent triggering mechanism for drug release. Both drugs were successfully incorporated into liposomes by lipid film hydration, although combination drug loading compromised liposome stability. Liposome stability was improved by reducing the drug load and by including Pluronics® (PL) in the formulations. DOX did not appear to interact with the phospholipid membranes comprising the liposomes, and its release was maximized in the presence of radio frequency (RF) heating. In contrast, differential scanning calorimetry (DSC) and phosphorus-31 nuclear magnetic resonance ((31)P-NMR) analysis revealed that RAL developed strong interactions with the phospholipid membranes, most notably with lipid phosphate head groups, resulting in significant changes in membrane thermodynamics. Likewise, RAL release from liposomes was minimal, even in the presence of RF heating. These studies may offer useful insights into the design and optimization of multidrug containing liposomes. The effects of RAL on liposome characteristics and drug release performance underscore the importance of appropriate physical-chemical analysis in order to identify and characterize drug-lipid interactions that may profoundly affect liposome properties and performance early in the formulation development process.
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21
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Simão AMS, Bolean M, Cury TAC, Stabeli RG, Itri R, Ciancaglini P. Liposomal systems as carriers for bioactive compounds. Biophys Rev 2015; 7:391-397. [PMID: 28510100 DOI: 10.1007/s12551-015-0180-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Accepted: 09/22/2015] [Indexed: 11/30/2022] Open
Abstract
Since the revolutionary discovery that phospholipids can form closed bilayered structures in aqueous systems, the study of liposomes has become a very interesting area of research. The versatility and amazing biocompatibility of liposomes has resulted in their wide-spread use in many scientific fields, and many of their applications, especially in medicine, have yielded breakthroughs in recent decades. Specifically, their easy preparation and various structural aspects have given rise to broadly usable methodologies to internalize different compounds, with either lipophilic or hydrophilic properties. The study of compounds with potential biotechnological application(s) is generally related to evaluation and risk assessment of the possible cytotoxic or therapeutic effects of the compound under study. In most cases, undesirable side-effects are associated with an interaction of the liposome with the cell membrane and/or its absorption and subsequent interaction with a cellular biomolecule. Liposomal carrier systems have an unprecedented potential for delivering bioactive substances to specific molecular targets due to their biocompatibility, biodegradability and low toxicity. Liposomes are therefore considered to be an invaluable asset in applied biotechnology studies due to their potential for interaction with both hydrophilic and lipophilic compounds.
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Affiliation(s)
- Ana Maria Sper Simão
- Departmento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), Av. Bandeirantes, 3900, 14040-901, Ribeirão Preto, SP, Brazil
| | - Maytê Bolean
- Departmento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), Av. Bandeirantes, 3900, 14040-901, Ribeirão Preto, SP, Brazil
| | - Thuanny Alexandra Campos Cury
- Departmento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), Av. Bandeirantes, 3900, 14040-901, Ribeirão Preto, SP, Brazil
| | - Rodrigo Guerino Stabeli
- Centro de Nanotecnologia Aplicada a Saúde-Nanosus, Presidência da Fiocruz, Rua Prof. Algacyr Munhoz Mader, 3775, 81350-010, Curitiba, PR, Brazil.,Brasil e Universidade Federal de Rondônia, Porto Velho, Rondônia, Brazil
| | - Rosangela Itri
- Depto. Física Aplicada, Instituto de Física, IF-USP, São Paulo, SP, Brazil
| | - Pietro Ciancaglini
- Departmento de Química, Faculdade de Filosofia Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), Av. Bandeirantes, 3900, 14040-901, Ribeirão Preto, SP, Brazil.
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Bolean M, Simão AMS, Kiffer-Moreira T, Hoylaerts MF, Millán JL, Itri R, Ciancaglini P. Proteoliposomes with the ability to transport Ca(2+) into the vesicles and hydrolyze phosphosubstrates on their surface. Arch Biochem Biophys 2015; 584:79-89. [PMID: 26325078 DOI: 10.1016/j.abb.2015.08.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 08/26/2015] [Accepted: 08/27/2015] [Indexed: 11/19/2022]
Abstract
We describe the production of stable DPPC and DPPC:DPPS-proteoliposomes harboring annexin V (AnxA5) and tissue-nonspecific alkaline phosphatase (TNAP) and their use to investigate whether the presence of AnxA5 impacts the kinetic parameters for hydrolysis of TNAP substrates at physiological pH. The best catalytic efficiency was achieved in DPPS 10%-proteoliposomes (molar ratio), conditions that also increased the specificity of TNAP hydrolysis of PPi. Melting behavior of liposomes and proteoliposomes was analyzed via differential scanning calorimetry. The presence of 10% DPPS in DPPC-liposomes causes a broadening of the transition peaks, with AnxA5 and TNAP promoting a decrease in ΔH values. AnxA5 was able to mediate Ca(2+)-influx into the DPPC and DPPC:DPPS 10%-vesicles at physiological Ca(2+) concentrations (∼2 mM). This process was not affected by the presence of TNAP in the proteoliposomes. However, AnxA5 significantly affects the hydrolysis of TNAP substrates. Studies with GUVs confirmed the functional reconstitution of AnxA5 in the mimetic systems. These proteoliposomes are useful as mimetics of mineralizing cell-derived matrix vesicles, known to be responsible for the initiation of endochondral ossification, as they successfully transport Ca(2+) and possess the ability to hydrolyze phosphosubstrates in the lipid-water interface.
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Affiliation(s)
- Maytê Bolean
- Depto. Química, FFCLRP-USP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Ana Maria S Simão
- Depto. Química, FFCLRP-USP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil
| | - Tina Kiffer-Moreira
- Sanford Children's Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Marc F Hoylaerts
- Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, University of Leuven, Leuven, Belgium
| | - José Luis Millán
- Sanford Children's Health Research Center, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Rosangela Itri
- Depto. Física Aplicada, Instituto de Física, IF-USP, São Paulo, SP, Brazil
| | - Pietro Ciancaglini
- Depto. Química, FFCLRP-USP, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
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23
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Cury TAC, Yoneda JS, Zuliani JP, Soares AM, Stábeli RG, Calderon LDA, Ciancaglini P. Cinnamic acid derived compounds loaded into liposomes: antileishmanial activity, production standardisation and characterisation. J Microencapsul 2015; 32:467-77. [PMID: 26052723 DOI: 10.3109/02652048.2015.1046518] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Synthetic compounds derived from cinnamic acid were tested in cultures containing the promastigote form of Leishmania amazonensis and the dimethylsulphoxide solution of B2 compound (2.0 mg/mL) led to a 92% decrease of leishmania in 96 h of treatment. Then, different liposomal systems (diameters ∼200 nm) were prepared by the extrusion method in the presence and absence of compounds studied. DSC thermograms of the liposomes in the presence of these compounds caused changes in ΔH, Tm and ΔT1/2, compared to controls, indicating that there was an interaction of the compounds with the lipid bilayer. Assays with negatively charged liposomal systems containing these drugs in L. amazonensis cultures led to a 50-80% decrease in the number of leishmanias with a concentration to 100 times lower when compared to the B2 initial test. These liposomal systems are promoting more interaction and delivery of the compounds and proved to be an efficient, stable and promising system.
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Affiliation(s)
- Thuanny Alexandra Campos Cury
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo , Ribeirão Preto, São Paulo , Brazil
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24
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Ciprofloxacin Metalloantibiotic: An Effective Antibiotic with an Influx Route Strongly Dependent on Lipid Interaction? J Membr Biol 2014; 248:125-36. [DOI: 10.1007/s00232-014-9749-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 10/29/2014] [Indexed: 12/01/2022]
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25
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Wang J, Sun R, Hao C. Mixed alkaline phosphatase/sphingomyelin monolayer at the air-buffer interface: phase behavior and morphology. Sci China Chem 2014. [DOI: 10.1007/s11426-014-5124-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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26
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Liu XM, Zhang Y, Chen F, Khutsishvili I, Fehringer EV, Marky LA, Bayles KW, Wang D. Prevention of orthopedic device-associated osteomyelitis using oxacillin-containing biomineral-binding liposomes. Pharm Res 2012; 29:3169-79. [PMID: 22733150 DOI: 10.1007/s11095-012-0812-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Accepted: 05/21/2012] [Indexed: 12/19/2022]
Abstract
PURPOSE To develop novel biomineral-binding liposomes (BBL) for the prevention of orthopedic implant associated osteomyelitis. METHODS A biomineral-binding lipid, alendronate-tri(ethyleneglycol)-cholesterol conjugate (ALN-TEG-Chol), was synthesized through Cu(I)-catalyzed Huisgen 1,3-dipolar cycloaddition (a versatile click reaction). Mixing with other excipients, the new lipid was used to develop BBL. Thermodynamic behavior was studied by differential scanning calorimetry (DSC). In vitro biomineral-binding potential and kinetics were evaluated on hydroxyapatite (HA, a widely used material for orthopedic implant devices) particles. Oxacillin was encapsulated into BBL and used for in vitro evaluation in preventing Staphylococcus aureus biofilm formation. RESULTS DSC analysis showed that ALN-TEG-Chol could inhibit the phase transition of liposomes by reducing its cooperativity, yielding liposomes with thermodynamic stability similar to liposomes containing regular cholesterol. BBL showed fast and strong binding ability to HA. Oxacillin-loading BBL demonstrated significantly better preventive efficacy against bacteria colonization when challenged with S. aureus isolate, implying its potential in preventing orthopedic implant associated osteomyelitis. CONCLUSIONS In this proof of concept study, novel BBL has been successfully developed and validated for reducing the frequency of implantable device-related infections.
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Affiliation(s)
- Xin-Ming Liu
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, 986025 Nebraska Medical Center, COP 3026, Omaha, NE 68198-6025, USA
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27
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Ciancaglini P, Simão AMS, Bolean M, Millán JL, Rigos CF, Yoneda JS, Colhone MC, Stabeli RG. Proteoliposomes in nanobiotechnology. Biophys Rev 2012; 4:67-81. [PMID: 28510001 PMCID: PMC5418368 DOI: 10.1007/s12551-011-0065-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Accepted: 12/22/2011] [Indexed: 01/08/2023] Open
Abstract
Proteoliposomes are systems that mimic lipid membranes (liposomes) to which a protein has been incorporated or inserted. During the last decade, these systems have gained prominence as tools for biophysical studies on lipid-protein interactions as well as for their biotechnological applications. Proteoliposomes have a major advantage when compared with natural membrane systems, since they can be obtained with a smaller number of lipidic (and protein) components, facilitating the design and interpretation of certain experiments. However, they have the disadvantage of requiring methodological standardization for incorporation of each specific protein, and the need to verify that the reconstitution procedure has yielded the correct orientation of the protein in the proteoliposome system with recovery of its functional activity. In this review, we chose two proteins under study in our laboratory to exemplify the steps necessary for the standardization of the reconstitution of membrane proteins in liposome systems: (1) alkaline phosphatase, a protein with a glycosylphosphatidylinositol anchor, and (2) Na,K-ATPase, an integral membrane protein. In these examples, we focus on the production of the specific proteoliposomes, as well as on their biochemical and biophysical characterization, with emphasis on studies of lipid-protein interactions. We conclude the chapter by highlighting current prospects of this technology for biotechnological applications, including the construction of nanosensors and of a multi-protein nanovesicular biomimetic to study the processes of initiation of skeletal mineralization.
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Affiliation(s)
- P Ciancaglini
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da (FFCLRP), Universidade de São Paulo - USP, 14040-901, Ribeirão Preto, SP, Brazil.
| | - A M S Simão
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da (FFCLRP), Universidade de São Paulo - USP, 14040-901, Ribeirão Preto, SP, Brazil
| | - M Bolean
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da (FFCLRP), Universidade de São Paulo - USP, 14040-901, Ribeirão Preto, SP, Brazil
| | - J L Millán
- Sanford Children's Health Research Center, Sanford - Burnham Medical Research Institute, La Jolla, CA, USA
| | - C F Rigos
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da (FFCLRP), Universidade de São Paulo - USP, 14040-901, Ribeirão Preto, SP, Brazil
| | - J S Yoneda
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da (FFCLRP), Universidade de São Paulo - USP, 14040-901, Ribeirão Preto, SP, Brazil
| | - M C Colhone
- Departamento de Química, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto da (FFCLRP), Universidade de São Paulo - USP, 14040-901, Ribeirão Preto, SP, Brazil
| | - R G Stabeli
- Centro de Estudos de Biomoléculas Aplicadas a Medicina, Núcleo de Saúde (NUSAU), Universidade Federal de Rondônia (UNIR), 76800-000, Porto Velho, RO, Brazil
- Fundação Oswaldo Cruz (Fiocruz-Rondonia), Ministério da Saúde, 76812-245, Porto Velho, RO, Brazil
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28
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Wang YW, Jou CH, Yang MC. Effect of quaternized chitosan on the fusion efficiency and cytocompatibility of liposomes. JOURNAL OF POLYMER RESEARCH 2011. [DOI: 10.1007/s10965-011-9755-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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29
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Cellular fusion and whitening effect of a chitosan derivative coated liposome. Colloids Surf B Biointerfaces 2011; 90:169-76. [PMID: 22056083 DOI: 10.1016/j.colsurfb.2011.10.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 10/08/2011] [Accepted: 10/12/2011] [Indexed: 11/22/2022]
Abstract
In this study, a derivative of chitosan, N-(2-hydroxyl) propyl-3-trimethyl ammonium chitosan chloride (HTCC), was coated onto the liposomes made of cholesterol and 1,2-palmitoyl-sn-glycero-3-phosphatidylcholine (DPPC). These coated liposomes were loaded with kojic acid for skin whitening. The appearance of liposome was examined using transmission electron microscope (TEM), and the coating of HTCC to the liposome was confirmed by infrared spectroscopy. By labeling with Dil, the fusion of liposome with the cell membrane of L929 fibroblast and B16-F10 melanoma was improved by the coating of HTCC. Based on the results of Franz cell experiment, the penetration of kojic acid (KA) through skin was improved by using HTCC-coating liposomes. Furthermore, the cell proliferation of L929 was not affected by HTCC-coating liposomes, while that of B16-F10 was reduced slightly with the increase of the concentration of HTCC-loading liposome. The degree of skin whitening was determined based on the melanin content in B-16-F10 cells. The results showed that the level of melanin synthesis was lower when KA was delivered using HTCC-coating liposome instead of traditional liposome.
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Natarajan JV, Chattopadhyay S, Ang M, Darwitan A, Foo S, Zhen M, Koo M, Wong TT, Venkatraman SS. Sustained release of an anti-glaucoma drug: demonstration of efficacy of a liposomal formulation in the rabbit eye. PLoS One 2011; 6:e24513. [PMID: 21931735 PMCID: PMC3170360 DOI: 10.1371/journal.pone.0024513] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2011] [Accepted: 08/11/2011] [Indexed: 02/07/2023] Open
Abstract
Topical medication remains the first line treatment of glaucoma; however, sustained ocular drug delivery via topical administration is difficult to achieve. Most drugs have poor penetration due to the multiple physiological barriers of the eye and are rapidly cleared if applied topically. Currently, daily topical administration for lowering the intra-ocular pressure (IOP), has many limitations, such as poor patient compliance and ocular allergy from repeated drug administration. Poor compliance leads to suboptimal control of IOP and disease progression with eventual blindness. The delivery of drugs in a sustained manner could provide the patient with a more attractive alternative by providing optimal therapeutic dosing, with minimal local toxicity and inconvenience. To investigate this, we incorporated latanoprost into LUVs (large unilamellar vesicles) derived from the liposome of DPPC (di-palmitoyl-phosphatidyl-choline) by the film hydration technique. Relatively high amounts of drug could be incorporated into this vesicle, and the drug resides predominantly in the bilayer. Vesicle stability monitored by size measurement and DSC (differential scanning calorimetry) analysis showed that formulations with a drug/lipid mole ratio of about 10% have good physical stability during storage and release. This formulation demonstrated sustained release of latanoprost in vitro, and then tested for efficacy in 23 rabbits. Subconjunctival injection and topical eye drop administration of the latanoprost/liposomal formulation were compared with conventional daily administration of latanoprost eye drops. The IOP lowering effect with a single subconjunctival injection was shown to be sustained for up to 50 days, and the extent of IOP lowering was comparable to daily eye drop administration. Toxicity and localized inflammation were not observed in any treatment groups. We believe that this is the first demonstration, in vivo, of sustained delivery to the anterior segment of the eye that is safe and efficacious for 50 days.
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Affiliation(s)
- Jayaganesh V. Natarajan
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Sujay Chattopadhyay
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
- Department of Chemical Engineering, Doctor Babasaheb Ambedkar Technological University, Lonere, Maharashtra, India
| | - Marcus Ang
- Singapore National Eye Centre, Singapore, Singapore
| | - Anastasia Darwitan
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Selin Foo
- Singapore National Eye Centre, Singapore, Singapore
| | - Ma Zhen
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | | | - Tina T. Wong
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
- Singapore National Eye Centre, Singapore, Singapore
- Ocular Drug Delivery Group, Singapore Eye Research Institute, Singapore, Singapore
- * E-mail: (SSV); (TTW)
| | - Subbu S. Venkatraman
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
- * E-mail: (SSV); (TTW)
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31
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Bolean M, Simão AMS, Favarin BZ, Millán JL, Ciancaglini P. Thermodynamic properties and characterization of proteoliposomes rich in microdomains carrying alkaline phosphatase. Biophys Chem 2011; 158:111-8. [PMID: 21676530 DOI: 10.1016/j.bpc.2011.05.019] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 05/18/2011] [Accepted: 05/21/2011] [Indexed: 10/18/2022]
Abstract
Tissue-nonspecific alkaline phosphatase (TNAP) is associated to the plasma membrane via a GPI-anchor and plays a key role in the biomineralization process. In plasma membranes, most GPI-anchored proteins are associated with "lipid rafts", ordered microdomains enriched in sphingolipids, glycosphingolipids and cholesterol. In order to better understand the role of lipids present in rafts and their interactions with GPI-anchored proteins, the insertion of TNAP into different lipid raft models was studied using dipalmitoylphosphatidylcholine (DPPC), cholesterol (Chol), sphingomyelin (SM) and ganglioside (GM1). Thus, the membrane models studied were binary systems (9:1 molar ratio) containing DPPC:Chol, DPPC:SM and DPPC:GM1, ternary systems (8:1:1 molar ratio) containing DPPC:Chol:SM, DPPC:Chol:GM1 and DPPC:SM:GM1 and finally, a quaternary system (7:1:1:1 molar ratio) containing DPPC:Chol:SM:GM1. Calorimetry analysis of the liposomes and proteoliposomes indicate that lateral phase segregation could be noted only in the presence of cholesterol, with the formation of cholesterol-rich microdomains centered above Tc=41.5°C. The presence of GM1 and SM into DPPC-liposomes influenced mainly ΔH and Δt(1/2) values. The gradual increase in the complexity of the systems decreased the activity of the enzyme incorporated. The presence of the enzyme also fluidifies the systems, as seen by the intense reduction in ∆H values, but do not alter Tc values significantly. Therefore, the study of different microdomains and its biophysical characterization may contribute to the knowledge of the interactions between the lipids present in MVs and its interactions with TNAP.
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Affiliation(s)
- M Bolean
- Depto. Química, Ciências e Letras de Ribeirão Preto da Universidade de São Paulo (FFCLRP-USP), SP, Brazil
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