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Poddar D, Singh A, Rao P, Mohanty S, Jain P. Modified-Hydroxyapatite-Chitosan Hybrid Composite Interfacial Coating on 3D Polymeric Scaffolds for Bone Tissue Engineering. Macromol Biosci 2023; 23:e2300243. [PMID: 37586699 DOI: 10.1002/mabi.202300243] [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: 05/30/2023] [Revised: 07/31/2023] [Indexed: 08/18/2023]
Abstract
Three dimensional (3D) scaffolds have huge limitations due to their low porosity, mechanical strength, and lack of direct cell-bioactive drug contact. Whereas bisphosphonate drug has the ability to stimulate osteogenesis in osteoblasts and bone marrow mesenchymal stem cells (hMSC) which attracted its therapeutic use. However it is hard administration low bioavailability, and lack of site-specificity, limiting its usage. The proposed scaffold architecture allows cells to access the bioactive surface at their apex by interacting at the scaffold's interfacial layer. The interface of 3D polycaprolactone (PCL) scaffolds has been coated with alendronate-modified hydroxyapatite (MALD) enclosed in a chitosan matrix, to mimic the native environment and stupulate the through interaction of cells to bioactive layer. Where the mechanical strength will be provided by the skeleton of PCL. In the MALD composite's hydroxyapatite (HAP) component will govern alendronate (ALD) release behavior, and HAP presence will drive the increase in local calcium ion concentration increases hMSC proliferation and differentiation. In results, MALD show release of 86.28 ± 0.22. XPS and SEM investigation of the scaffold structure, shows inspiring particle deposition with chitosan over the interface. All scaffolds enhanced cell adhesion, proliferation, and osteocyte differentiation for over a week without in vitro cell toxicity with 3.03 ± 0.2 kPa mechanical strength.
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Affiliation(s)
- Deepak Poddar
- Department of Chemistry, Netaji Subhas University of Technology, Dwarka Sector 3, New Delhi, 110078, India
- Department of Chemical Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India
| | - Ankita Singh
- Department of Chemistry, Netaji Subhas University of Technology, Dwarka Sector 3, New Delhi, 110078, India
| | - Pranshu Rao
- Stem Cell Facility, DBT-Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Sujata Mohanty
- Stem Cell Facility, DBT-Centre of Excellence for Stem Cell Research, All India Institute of Medical Sciences, New Delhi, 110029, India
| | - Purnima Jain
- Department of Chemistry, Netaji Subhas University of Technology, Dwarka Sector 3, New Delhi, 110078, India
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Yigit O. Thermal, chemical, and structural investigation of the usability of Cs/nHAp-ZnO/Glutaraldehyde polymer matrix composite in potential biomaterial applications. ARAB J CHEM 2023. [DOI: 10.1016/j.arabjc.2023.104838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023] Open
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3
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Zhao X, Zhu X, Xiao X, Nan J, Xu M, Wu C. Molecular structures of 1-hydroxyethane-1,1-diphosphonic acid for removing calcium sulfate scale under different pH conditions. RSC Adv 2023; 13:19058-19064. [PMID: 37362326 PMCID: PMC10288176 DOI: 10.1039/d3ra03052k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Accepted: 06/05/2023] [Indexed: 06/28/2023] Open
Abstract
As an important descaling agent, 1-hydroxyethane-1,1-diphosphonic acid (HEDP) is capable of dissolving calcium sulfate scale when the pH of HEDP solution is adjusted from acidic to weakly alkaline. The molecular structures of Ca-HEDP complexes were determined to understand the impact of pH on the dissolution of calcium sulfate scale. The structures of the complexes revealed that the two phosphonic acid groups and the hydroxyl group of HEDP each provide one O atom to coordinate with the Ca ion to form a stable three-coordinate configuration under alkaline conditions. The electronic structures were investigated by interaction region indicator analysis, atoms in molecules analysis, electron localization function and natural population analysis. The deprotonation of the phosphonic acid group enhances the binding of coordinated O atoms and Ca ions as the pH increases, and weak alkalinity is the optimal process condition as strong alkaline conditions result in the precipitation of hydroxide and Ca ions.
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Affiliation(s)
- Xiaoyang Zhao
- School of Geomatic and Environmental Engineering, Henan Polytechnic Institute Nanyang 473000 P.R. China
| | - Xingzhe Zhu
- School of Geomatic and Environmental Engineering, Henan Polytechnic Institute Nanyang 473000 P.R. China
| | - Xin Xiao
- School of Chemistry, South China Normal University Guangzhou 510006 P.R. China
| | - Junmin Nan
- School of Chemistry, South China Normal University Guangzhou 510006 P.R. China
| | - Meng Xu
- Department of Information, The First Affiliated Hospital, Zhengzhou University Zhengzhou 450052 P.R. China
| | - Chen Wu
- Department of Physics, School of Science, Harbin University of Science and Technology Harbin 150080 P.R. China
- College of Material Science and Engineering, Key Laboratory of Advanced Structural Materials, Ministry of Education, Changchun University of Technology Changchun 130012 P.R. China
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Heller A, Senwitz C, Foerstendorf H, Tsushima S, Holtmann L, Drobot B, Kretzschmar J. Europium(III) Meets Etidronic Acid (HEDP): A Coordination Study Combining Spectroscopic, Spectrometric, and Quantum Chemical Methods. Molecules 2023; 28:molecules28114469. [PMID: 37298946 DOI: 10.3390/molecules28114469] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 06/12/2023] Open
Abstract
Etidronic acid (1-Hydroxyethylidene-1,1-diphosphonic acid, HEDP, H4L) is a proposed decorporation agent for U(VI). This paper studied its complex formation with Eu(III), an inactive analog of trivalent actinides, over a wide pH range, at varying metal-to-ligand ratios (M:L) and total concentrations. Combining spectroscopic, spectrometric, and quantum chemical methods, five distinct Eu(III)-HEDP complexes were found, four of which were characterized. The readily soluble EuH2L+ and Eu(H2L)2- species with log β values of 23.7 ± 0.1 and 45.1 ± 0.9 are formed at acidic pH. At near-neutral pH, EuHL0s forms with a log β of ~23.6 and, additionally, a most probably polynuclear complex. The readily dissolved EuL- species with a log β of ~11.2 is formed at alkaline pH. A six-membered chelate ring is the key motif in all solution structures. The equilibrium between the Eu(III)-HEDP species is influenced by several parameters, i.e., pH, M:L, total Eu(III) and HEDP concentrations, and time. Overall, the present work sheds light on the very complex speciation in the HEDP-Eu(III) system and indicates that, for risk assessment of potential decorporation scenarios, side reactions of HEDP with trivalent actinides and lanthanides should also be taken into account.
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Affiliation(s)
- Anne Heller
- Chair of Radiochemistry/Radioecology, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
- Central Radionuclide Laboratory, Radiation Protection Office, Technische Universität Dresden, 01062 Dresden, Germany
| | - Christian Senwitz
- Chair of Radiochemistry/Radioecology, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062 Dresden, Germany
- Central Radionuclide Laboratory, Radiation Protection Office, Technische Universität Dresden, 01062 Dresden, Germany
| | - Harald Foerstendorf
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
| | - Satoru Tsushima
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
- International Research Frontiers Initiative (IRFI), Institute of Innovative Research, Tokyo Institute of Technology, Tokyo 152-8550, Japan
| | - Linus Holtmann
- Institute of Radioecology and Radiation Protection, Leibniz Universität Hannover, 30419 Hannover, Germany
| | - Björn Drobot
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
| | - Jerome Kretzschmar
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, 01328 Dresden, Germany
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Al-Otaibi JS, Sheena Mary Y, Shyma Mary Y, Soman S, Thirunavukkarasu M. Solvation Effects, Reactivity Studies and Molecular Dynamics of Two Phosphonic Acids – Theoretical Investigation. Polycycl Aromat Compd 2022. [DOI: 10.1080/10406638.2022.2126504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Jamelah S. Al-Otaibi
- Department of Chemistry, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | | | | | - Sreejit Soman
- Stemskills Research and Education Lab Private Limited, Faridabad, India
| | - M. Thirunavukkarasu
- Department of Physics, Indo-American College, Cheyyar, India
- Department of Physics, Thiru A Govindasamy Govt. Arts College, Tindivanam, India
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Koehne I, Pietschnig R. Synthesis of Geminal Bis‐ and Tetrakisphosphonate Ester Derivatives and Their Coordination Behavior Towards Ca(II) Ions. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ingo Koehne
- Universität Kassel: Universitat Kassel Institut für Chemie GERMANY
| | - Rudolf Pietschnig
- Universität Kassel Institut für Chemie Heinrich-Plett-Strasse 40 34132 Kassel GERMANY
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Chashchin IS, Petlenko AA, Zaitsev IL, Bakuleva NP. A Study of Resistance to Calcification of Bovine Jugular Veins with Coatings Deposited from Solutions in Carbonic Acid. DOKLADY PHYSICAL CHEMISTRY 2021. [DOI: 10.1134/s0012501621010012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Wang D, Yang J, Xue F, Wang J, Hu W. Experimental and computational study of zinc coordinated 1-hydroxyethylidene-1,1-diphosphonic acid self-assembled film on steel surface. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2020.126009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Rodríguez I, Flores Bello J, Marie Serrano Valcárcel J, López-Mejías V. Design of Potential Pharmaceutical-Based Metal Complexes Derived from Cromolyn a Mast Cell Stabilizer. ACS OMEGA 2020; 5:29714-29721. [PMID: 33251407 PMCID: PMC7689660 DOI: 10.1021/acsomega.0c03320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 10/23/2020] [Indexed: 06/12/2023]
Abstract
A series of pharmaceutical metal complexes (pMCs) were produced and characterized using the mast cell stabilizer, cromolyn, and bioactive metal ions (Zn+2, Mg+2, and Ca+2). Three novel pMCs, Cromolyn-Zn, Cromolyn-Mg, and Cromolyn-Ca, were formed through reactions under controlled temperature and pH conditions. Additional characterization for these materials was performed employing a number of solid-state characterization techniques, such as thermogravimetric analysis (TGA), powder and single-crystal X-ray diffraction (PXRD and SCXRD), and scanning electron microscopy coupled with energy-dispersive spectroscopy (SEM-EDS). TGA demonstrated that these metal complexes showed an enhanced thermal stability due to the strong coordination with the ligand, cromolyn. PXRD data indicates a high degree of crystallinity as well as a unique packing arrangement for each pMCs. SEM analysis showed materials with well-defined morphologies, while EDS presented elemental evidence for the unique composition of each pMCs. The crystal structure for these materials was elucidated through SCXRD, and a variety of binding modes and packing motifs were found within each respective metal complex. Only two-dimensional (2D) structures were achieved under the conditions studied. These binding modalities might affect the activity and delivery of cromolyn sodium (CS). The stability of the metal complexes was assessed in phosphate-buffered saline (PBS, pH = 7.40) and fasted-state simulated gastric fluids (FaSSGF, pH = 1.60). Dissolution studies show high stability and slow degradation for the metal complexes, while a higher dissolution was observed for the drug compound in PBS. Neither CS nor the pMCs dissolved significantly in FaSSGF at 37 °C.
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Affiliation(s)
- Israel Rodríguez
- Department
of Chemistry, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico 00931 United States
| | - Jeaninna Flores Bello
- Department
of Mathematics, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico 00931 United States
- Crystallization
Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San
Juan, Puerto Rico 00926 United States
| | - Joyce Marie Serrano Valcárcel
- Department
of Chemistry, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico 00931 United States
- Crystallization
Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San
Juan, Puerto Rico 00926 United States
| | - Vilmalí López-Mejías
- Department
of Chemistry, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico 00931 United States
- Crystallization
Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San
Juan, Puerto Rico 00926 United States
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Chillè D, Aiello D, Grasso GI, Giuffrè O, Napoli A, Sgarlata C, Foti C. Complexation of As(III) by phosphonate ligands in aqueous fluids: Thermodynamic behavior, chemical binding forms and sequestering abilities. J Environ Sci (China) 2020; 94:100-110. [PMID: 32563473 DOI: 10.1016/j.jes.2020.03.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 03/24/2020] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
In recent years, the contamination of water by arsenic reached alarming levels in many countries of the world, attracting the interest of many researchers engaged in testing methodologies able to remove this harmful pollutant. An important aspect that must be taken into consideration is the possibility to find arsenic in different chemical forms which could require different approaches for its removal. At this aim, a speciation analysis appears to be crucial for better understanding the behavior of arsenic species in aqueous solutions, especially in presence of compounds with marked chelating properties. Phosphonates can be identified as good sequestering agents and, at this purpose, this manuscript intends to investigate the interaction of As(III) with three phosphonic acids derived from nitrilotriacetic acid (NTA) by replacements of one (N-(Phosphonomethyl) iminodiacetic acid, NTAP), two (N,N-Bis-(phosphonomethyl) glycine, NTA2P) and three (Nitrilotri(methylphosphonic acid), NTA3P) carboxylic groups with the same number of phosphonate groups. An in-depth potentiometric and calorimetric investigation allowed to determine speciation models featured by simple ML, MLHi and ML(OH) species. A complete thermodynamic characterization of the systems is reported together with the definition of coordination mode by mass spectrometry measurements. On the light of the speciation models, the possibility of using these ligands in arsenic removal techniques was assessed by determining the pL0.5 (the concentration of ligand able to remove the 50% of metal ion present in trace). All ligands show a good sequestering ability, in particular under the conditions of fresh water, following the trend NTA3P > NTA2P > NTAP.
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Affiliation(s)
- Donatella Chillè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Donatella Aiello
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Via P. Bucci, 87036 Arcavacata di Rende (CS), Italy
| | - Giuseppa Ida Grasso
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Ottavia Giuffrè
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Anna Napoli
- Dipartimento di Chimica e Tecnologie Chimiche, Università della Calabria, Via P. Bucci, 87036 Arcavacata di Rende (CS), Italy
| | - Carmelo Sgarlata
- Dipartimento di Scienze Chimiche, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Claudia Foti
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale F. Stagno d'Alcontres 31, 98166 Messina, Italy.
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New insights on physico-chemical investigation of bisphosphonate adsorption isotherm into apatite substrate using statistical physics treatment. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113230] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Quiñones Vélez G, Carmona-Sarabia L, Rodríguez-Silva WA, Rivera Raíces AA, Feliciano Cruz L, Hu T, Peterson E, López-Mejías V. Potentiating bisphosphonate-based coordination complexes to treat osteolytic metastases. J Mater Chem B 2020; 8:2155-2168. [PMID: 32095795 PMCID: PMC7106950 DOI: 10.1039/c9tb01857c] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The hydrothermal reaction between bioactive metal (Ca2+, Zn2+, and Mg2+) salts and a clinically utilized bisphosphonate, alendronate (ALEN), promotes the formation of several materials denominated as bisphosphonate-based coordination complexes (BPCCs). The systematic exploration of the effect of three variables, M2+/ALEN molar ratio, temperature, and pH, on the reaction yielded an unprecedented number of materials of enough crystal quality for structural elucidation. Five crystal structures were unveiled by single crystal X-ray diffraction (ALEN-Ca forms I and II, ALEN-Zn forms I and II, and ALEN-Mg) and their solid-state properties revealed in tandem with other techniques. The dissolution of these BPCCs was tested and contrasted to that of the commercially employed generic form of Fosamax® Alendronate Sodium, using fasted-state simulated gastric fluid and phosphate-buffered saline solution. Quantification of ALEN content was performed by derivatization with Cu2+, which produced a soluble complex suitable for quantification. The results show that these materials present a pH-dependent degradation. Moreover, a phase inversion temperature (PIT) nano-emulsion method was applied to the synthesis of ALEN-Ca form II. Size distribution analysis demonstrated the efficiency of the PIT-nano-emulsion method to decrease the particle size of this BPCC from ∼60 μm to ∼438 d nm. The cytotoxicity of ALEN, ALEN-Ca form II (bulk crystals), and nano-Ca@ALEN (nanocrystals) against the MDA-MB-231 cell line was investigated. Nano-Ca@ALEN form II presents higher cytotoxicity effects than ALEN and ALEN-Ca form II (bulk crystals), showing inhibition of cell proliferation at 7.5 μM. These results provide evidence of the structure, stability, dissolution and cytotoxicity properties of ALEN-based BPCCs and pave the way for better formulation strategies for this drug through the design of nano-sized BPCCs for the treatment of bone-related diseases.
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Affiliation(s)
- Gabriel Quiñones Vélez
- Department of Chemistry, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico 00931, USA. and Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, USA
| | - Lesly Carmona-Sarabia
- Department of Chemistry, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico 00931, USA. and Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, USA
| | - Waldemar A Rodríguez-Silva
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, USA and Department of Biology, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico 00931, USA
| | - Alondra A Rivera Raíces
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, USA and Department of Biology, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico 00931, USA
| | - Lorraine Feliciano Cruz
- Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, USA and Department of Biology, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico 00931, USA
| | - Tony Hu
- Department of Chemistry and the Molecular Design Institute, New York University, 100 Washington Square East, New York, New York 10003-6688, USA
| | - Esther Peterson
- Department of Biology, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico 00931, USA
| | - Vilmalí López-Mejías
- Department of Chemistry, University of Puerto Rico, Río Piedras, San Juan, Puerto Rico 00931, USA. and Crystallization Design Institute, Molecular Sciences Research Center, University of Puerto Rico, San Juan, Puerto Rico 00926, USA
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Pandele AM, Constantinescu A, Radu IC, Miculescu F, Ioan Voicu S, Ciocan LT. Synthesis and Characterization of PLA-Micro-structured Hydroxyapatite Composite Films. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E274. [PMID: 31936228 PMCID: PMC7014116 DOI: 10.3390/ma13020274] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/20/2019] [Accepted: 12/23/2019] [Indexed: 01/30/2023]
Abstract
This article presents a facile synthesis method used to obtain new composite films based on polylactic acid and micro-structured hydroxyapatite particles. The composite films were synthesized starting from a polymeric solution in chloroform (12 wt.%) in which various concentrations of hydroxyapatite (1, 2, and 4 wt.% related to polymer) were homogenously dispersed using ultrasonication followed by solvent evaporation. The synthesized composite films were morphologically (through SEM and atomic force microscopy (AFM)) and structurally (through FT-IR and Raman spectroscopy) characterized. The thermal behavior of the composite films was also determined. The SEM and AFM analyses showed the presence of micro-structured hydroxyapatite particles in the film's structure, as well as changes in the surface morphology. There was a significant decrease in the crystallinity of the composite films compared to the pure polymer, this being explained by a decrease in the arrangement of the polymer chains and a concurrent increase in the degree of their clutter. The presence of hydroxyapatite crystals did not have a significant influence on the degradation temperature of the composite film.
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Affiliation(s)
- Andreea Madalina Pandele
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Material Science, University Polytehnica of Bucharest, str. Gheorghe Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (I.C.R.)
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gheorghe Polizu 1-7, 011061 Bucharest, Romania
| | - Andreea Constantinescu
- Faculty of Materials Science, University Politehnica of Bucharest, Splaiul Independentei 313, 011061 Bucharest, Romania; (A.C.); (F.M.)
| | - Ionut Cristian Radu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Material Science, University Polytehnica of Bucharest, str. Gheorghe Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (I.C.R.)
| | - Florin Miculescu
- Faculty of Materials Science, University Politehnica of Bucharest, Splaiul Independentei 313, 011061 Bucharest, Romania; (A.C.); (F.M.)
| | - Stefan Ioan Voicu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Material Science, University Polytehnica of Bucharest, str. Gheorghe Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (I.C.R.)
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gheorghe Polizu 1-7, 011061 Bucharest, Romania
| | - Lucian Toma Ciocan
- “Carol Davila” University of Medicine and Pharmacy, Prosthetics Technology and Dental Materials Department, 37, Dionisie Lupu Street, District 1, 020022 Bucharest, Romania;
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Filippov L, Kaba O, Filippova I. Surface analyses of calcite particles reactivity in the presence of phosphoric acid. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2019.06.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Forte L, Sarda S, Torricelli P, Combes C, Brouillet F, Marsan O, Salamanna F, Fini M, Boanini E, Bigi A. Multifunctionalization Modulates Hydroxyapatite Surface Interaction with Bisphosphonate: Antiosteoporotic and Antioxidative Stress Materials. ACS Biomater Sci Eng 2019; 5:3429-3439. [DOI: 10.1021/acsbiomaterials.9b00795] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lucia Forte
- Department of Chemistry “G. Ciamician”, University of Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Stéphanie Sarda
- CIRIMAT, Université de Toulouse, CNRS, Université Toulouse 3 - Paul Sabatier, Toulouse INP ENSIACET, 4 allée Emile Monso, 31030 Toulouse cedex 4, France
| | - Paola Torricelli
- Laboratory of Preclinical and Surgical Studies, IRCCS Rizzoli Orthopaedic Institute, via di Barbiano 1/10 40136 Bologna, Italy
| | - Christèle Combes
- CIRIMAT, Université de Toulouse, CNRS, Université Toulouse 3 - Paul Sabatier, Toulouse INP ENSIACET, 4 allée Emile Monso, 31030 Toulouse cedex 4, France
| | - Fabien Brouillet
- CIRIMAT, Université de Toulouse, CNRS, Université Toulouse 3 - Paul Sabatier, Faculté des Sciences Pharmaceutique, 35 Chemin des Maraichers, 31062 Toulouse cedex 9, France
| | - Olivier Marsan
- CIRIMAT, Université de Toulouse, CNRS, Université Toulouse 3 - Paul Sabatier, Toulouse INP ENSIACET, 4 allée Emile Monso, 31030 Toulouse cedex 4, France
| | - Francesca Salamanna
- Laboratory of Preclinical and Surgical Studies, IRCCS Rizzoli Orthopaedic Institute, via di Barbiano 1/10 40136 Bologna, Italy
| | - Milena Fini
- Laboratory of Preclinical and Surgical Studies, IRCCS Rizzoli Orthopaedic Institute, via di Barbiano 1/10 40136 Bologna, Italy
| | - Elisa Boanini
- Department of Chemistry “G. Ciamician”, University of Bologna, via Selmi 2, 40126 Bologna, Italy
| | - Adriana Bigi
- Department of Chemistry “G. Ciamician”, University of Bologna, via Selmi 2, 40126 Bologna, Italy
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Papathanasiou KE, Vassaki M, Spinthaki A, Alatzoglou FEG, Tripodianos E, Turhanen P, Demadis KD. Phosphorus chemistry: from small molecules, to polymers, to pharmaceutical and industrial applications. PURE APPL CHEM 2018. [DOI: 10.1515/pac-2018-1012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Abstract
(Poly)phosphonic acids constitute an exciting family of phosphorus compounds. One of the attractive attributes of these molecules is the rich chemistry of the phosphonate moiety, and, in particular, its high affinity for metal ions and mineral surfaces. Whether the phosphonate group belongs to a “small” molecule or to a polymeric matrix, phosphonate-containing compounds have found a phalanx of real-life applications. Herein, we address a special category of phosphorus compounds called bisphosphonates (BPs, a.k.a. “-dronates”) and also phosphonate containing polymers. The success of BPs in mitigating osteoporosis notwithstanding, these “-dronate” drugs present a number of challenges. Nevertheless, the main drawback of BPs is their limited oral bioavailability. It is, therefore, imperative to design and fabricate “smart” systems that allow controlled delivery of the active BP agent. Here, easy-to-prepare drug delivery systems are presented based on silica gels. These have been synthesized, characterized, and studied as hosts in the control release of several BP drugs. They exhibit variable release rates and final % release, depending on the nature of bisphosphonate (side-chain length, hydro-philicity/-phobicity, water-solubility), cations present, pH and temperature. These gels are robust, injectable, re-loadable and re-usable. Furthermore, alternative drug delivery systems are presented that are based on metal-organic frameworks (MOFs). In these biologically acceptable inorganic metal ions have been incorporated, together with BPs as the organic portion. These materials have been synthesized, characterized, and studied for the self-sacrificial release (by pH-driven dissolution) of the BP active ingredient. Several such materials were prepared with a variety of bisphosphonate drugs. They exhibit variable release rates and final % release, depending on the actual structure of the metal-bisphosphonate material. Lastly, we will present the use of phosphonate-grafted polymers as scale inhibitors for water treatment applications.
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Affiliation(s)
- Konstantinos E. Papathanasiou
- Department of Chemistry and Biochemistry , Florida International University , MMC 11200 SW 8th Street , Miami, Florida 33199 , USA
| | - Maria Vassaki
- Crystal Engineering, Growth and Design Laboratory , Department of Chemistry , University of Crete , Voutes Campus, Crete, GR-71003 , Greece
| | - Argyro Spinthaki
- Crystal Engineering, Growth and Design Laboratory , Department of Chemistry , University of Crete , Voutes Campus, Crete, GR-71003 , Greece
| | - Fanouria-Eirini G. Alatzoglou
- Crystal Engineering, Growth and Design Laboratory , Department of Chemistry , University of Crete , Voutes Campus, Crete, GR-71003 , Greece
| | - Eleftherios Tripodianos
- Crystal Engineering, Growth and Design Laboratory , Department of Chemistry , University of Crete , Voutes Campus, Crete, GR-71003 , Greece
| | - Petri Turhanen
- University of Eastern Finland, School of Pharmacy , Biocenter Kuopio, P.O. Box 1627 , Kuopio FIN-70211 , Finland
| | - Konstantinos D. Demadis
- Crystal Engineering, Growth and Design Laboratory , Department of Chemistry , University of Crete , Voutes Campus, Crete, GR-71003 , Greece
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17
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Gałęzowska J. Interactions between Clinically Used Bisphosphonates and Bone Mineral: from Coordination Chemistry to Biomedical Applications and Beyond. ChemMedChem 2018; 13:289-302. [DOI: 10.1002/cmdc.201700769] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 01/09/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Joanna Gałęzowska
- Department of Inorganic Chemistry; Wrocław Medical University; Borowska 211A 50-556 Wrocław Poland
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18
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Mitić Ž, Stolić A, Stojanović S, Najman S, Ignjatović N, Nikolić G, Trajanović M. Instrumental methods and techniques for structural and physicochemical characterization of biomaterials and bone tissue: A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.127] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Rojek T, Goldeman W, Ślepokura K, Duczmal M, Wojciechowska A, Matczak-Jon E. Two isomorphous Co(ii) coordination polymers based on new α,α-disubstituted derivatives of zoledronic acid: synthesis, structures and properties. Dalton Trans 2017; 46:6900-6911. [DOI: 10.1039/c7dt00410a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1D Co(ii) coordination polymers based on new derivatives of zoledronic acid. Spectroscopic and magnetic characterization.
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Affiliation(s)
- Tomasz Rojek
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | - Waldemar Goldeman
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | | | - Marek Duczmal
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
| | | | - Ewa Matczak-Jon
- Department of Chemistry
- Wrocław University of Science and Technology
- 50-370 Wrocław
- Poland
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20
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Polymer-ceramic Monolithic In-Needle Extraction (MINE) device: Preparation and examination of drug affinity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:70-77. [DOI: 10.1016/j.msec.2016.05.097] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Revised: 04/26/2016] [Accepted: 05/22/2016] [Indexed: 11/17/2022]
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21
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Kast RE, Tucker SC, Killian K, Trexler M, Honn KV, Auner GW. Emerging technology: applications of Raman spectroscopy for prostate cancer. Cancer Metastasis Rev 2015; 33:673-93. [PMID: 24510129 DOI: 10.1007/s10555-013-9489-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
There is a need in prostate cancer diagnostics and research for a label-free imaging methodology that is nondestructive, rapid, objective, and uninfluenced by water. Raman spectroscopy provides a molecular signature, which can be scaled from micron-level regions of interest in cells to macroscopic areas of tissue. It can be used for applications ranging from in vivo or in vitro diagnostics to basic science laboratory testing. This work describes the fundamentals of Raman spectroscopy and complementary techniques including surface enhanced Raman scattering, resonance Raman spectroscopy, coherent anti-Stokes Raman spectroscopy, confocal Raman spectroscopy, stimulated Raman scattering, and spatially offset Raman spectroscopy. Clinical applications of Raman spectroscopy to prostate cancer will be discussed, including screening, biopsy, margin assessment, and monitoring of treatment efficacy. Laboratory applications including cell identification, culture monitoring, therapeutics development, and live imaging of cellular processes are discussed. Potential future avenues of research are described, with emphasis on multiplexing Raman spectroscopy with other modalities.
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Affiliation(s)
- Rachel E Kast
- Smart Sensors and Integrated Microsystems Laboratories, Department of Electrical and Computer Engineering, Wayne State University, 5050 Anthony Wayne Drive, Room 3100, Detroit, MI, 48202, USA
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22
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Ashouri M, Maghari A, Karimi-Jafari MH. Hydrogen bonding motifs in a hydroxy-bisphosphonate moiety: revisiting the problem of hydrogen bond identification. Phys Chem Chem Phys 2015; 17:13290-300. [DOI: 10.1039/c5cp00693g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Relative energy of conformers are highly correlated with their sum of local density of potential energy at H-bond critical points.
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Affiliation(s)
- Mitra Ashouri
- Department of Physical Chemistry
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
| | - Ali Maghari
- Department of Physical Chemistry
- School of Chemistry
- College of Science
- University of Tehran
- Tehran
| | - M. H. Karimi-Jafari
- Department of Bioinformatics
- Institute of Biochemistry and Biophysics
- University of Tehran
- Tehran
- Iran
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23
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Pascaud P, Errassifi F, Brouillet F, Sarda S, Barroug A, Legrouri A, Rey C. Adsorption on apatitic calcium phosphates for drug delivery: interaction with bisphosphonate molecules. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:2373-2381. [PMID: 24789452 DOI: 10.1007/s10856-014-5218-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 04/17/2014] [Indexed: 06/03/2023]
Abstract
Bisphosphonates (BPs) are well established as an important class of drugs for the treatment and prevention of several bone disorders including osteoporosis. This work investigated the interaction of two bisphosphonates, risedronate and tiludronate, with several apatitic supports, a well-crystallised hydroxyapatite (HA) and nanocrystalline apatites with varying maturation times, chemical composition and surface characteristics. The purpose was to fully understand the adsorption mechanism and desorption process, by the evaluation of the effect of several physicochemical parameters (temperature, pH and concentration of calcium and phosphate ions). Whatever the nature of the BP and the structure and composition of the apatite, the adsorption of such anti-resorptive agents can be well described as an ion exchange-reaction between phosphates species on the apatitic surface and BP molecules in solution. However, the parameters of adsorption can vary depending on the physicochemical conditions of the adsorption reaction. In addition, the structure and composition of the apatitic surface also influence the adsorption properties. Finally, BPs molecules are slowly released from apatitic supports, because most of the adsorbed molecules are irreversibly bound and not spontaneously released by dilution or simple washing. Moreover, similar to their adsorption, the release of bisphosphonates is strongly affected not only by the chemical properties of the molecule, but also by the chemical and structural characteristics of the apatitic substrates. The understanding of the adsorption and release processes provides fundamental tools for the development of drug delivery systems using apatite materials.
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Affiliation(s)
- P Pascaud
- CIRIMAT INPT-CNRS-UPS, Université de Toulouse, Université Paul Sabatier, 31062, Toulouse, France
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Synthesis, characterization and in vitro evaluation of new composite bisphosphonate delivery systems. Int J Mol Sci 2014; 15:16831-47. [PMID: 25247580 PMCID: PMC4200869 DOI: 10.3390/ijms150916831] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2014] [Revised: 08/05/2014] [Accepted: 09/12/2014] [Indexed: 11/20/2022] Open
Abstract
In this study, new composite bisphosphonate delivery systems were obtained from polyurethanes (PUs) and nanocrystalline hydroxyapatite (HA). The biodegradable PUs were first synthesized from poly(ε-caprolactone) diols (PCL diols), poly(ethylene adipate) diol, 1,6-hexamethylene diisocyanate, 1,4-butanediol and HA. Moreover, the PCL diols were synthesized by the ring-opening polymerization catalysed by the lipase from Candida antarctica. Next, composite drug delivery systems for clodronate were prepared. The mechanical properties of the obtained biomaterials were determined. The cytotoxicity of the synthesized polymers was tested. The preliminary results show that the obtained composites are perspective biomaterials and they can be potentially applied in the technology of implantation drug delivery systems.
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25
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Errassifi F, Sarda S, Barroug A, Legrouri A, Sfihi H, Rey C. Infrared, Raman and NMR investigations of risedronate adsorption on nanocrystalline apatites. J Colloid Interface Sci 2014; 420:101-11. [DOI: 10.1016/j.jcis.2014.01.017] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Revised: 12/23/2013] [Accepted: 01/09/2014] [Indexed: 11/24/2022]
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26
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Characterization of Calcium Phosphates Using Vibrational Spectroscopies. SPRINGER SERIES IN BIOMATERIALS SCIENCE AND ENGINEERING 2014. [DOI: 10.1007/978-3-642-53980-0_8] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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27
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Boanini E, Torricelli P, Gazzano M, Fini M, Bigi A. Crystalline calcium alendronate obtained by octacalcium phosphate digestion: a new chance for local treatment of bone loss diseases? ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:4605-4611. [PMID: 23836692 DOI: 10.1002/adma.201301129] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 05/08/2013] [Indexed: 06/02/2023]
Abstract
Octacalcium phosphate (OCP) interaction with alendronate (AL) solution results in the complete digestion of OCP: calcium ion is recruited by the bisphosphonate to yield quantitative precipitation of crystalline calcium alendronate monohydrate. This compound improves osteoblast differentiation and inhibits osteoclast proliferation and activity, both alone and, even more, in combination with OCP.
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Affiliation(s)
- Elisa Boanini
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi, 2, 40126 Bologna, Italy.
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28
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Proline modulates the effect of bisphosphonate on calcium levels and adenosine triphosphate production in cell lines derived from bovine Echinococcus granulosus protoscoleces. J Helminthol 2013; 88:459-67. [PMID: 23742745 DOI: 10.1017/s0022149x13000436] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Bisphosphonates have been proposed as pharmacological agents against parasite and cancer cell growth. The effect of these compounds on helminthic cell viability and acellular compartment morphology, however, has not yet been studied. The effects of different types of bisphosphonates, namely etidronate (EHDP), pamidronate (APD), alendronate (ABP), ibandronate (IB) and olpadronate (OPD), and their interaction with amiloride, 1,25-dihydroxycholecalciferol (D3) and proline were evaluated on a cell line derived from bovine Echinococcus granulousus protoscoleces (EGPE) that forms cystic colonies in agarose. The EGPE cell line allowed testing the effect of bisphosphonates alone and in association with other compounds that could modulate calcium apposition/deposition, and were useful in measuring the impact of these compounds on cell growth, cystic colony formation and calcium storage. Decreased cell growth and cystic colony formation were found with EHDP, IB and OPD, and increased calcium storage with EHDP only. Calcium storage in EGPE cells appeared to be sensitive to the effect of amiloride, D3 and proline. Proline decreased calcium storage and increased colony formation. Changes in calcium storage may be associated with degenerative changes of the cysts, as shown in the in vitro colony model and linked to an adenosine triphosphate (ATP) decrease. In conclusion, bisphosphonates could be suitable tempering drugs to treat cestode infections.
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29
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Pascaud P, Gras P, Coppel Y, Rey C, Sarda S. Interaction between a bisphosphonate, tiludronate, and biomimetic nanocrystalline apatites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:2224-2232. [PMID: 23317459 DOI: 10.1021/la3046548] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Bisphosphonates (BPs) are well established as successful antiresorptive agents for the prevention and treatment of bone diseases such as osteoporosis and Paget's disease. The aim of this work was to clarify the reaction mechanisms between a BP molecule, tiludronate, and the nanocrystalline apatite surface. The adsorption of tiludronate on well-characterized synthetic biomimetic nanocrystalline apatites with homogeneous but different compositions and surface characteristics was investigated to determine the effect of the nanocrystalline apatite substrate on the adsorption behavior. The results show that the adsorption of tiludronate on nanocrystalline biomimetic apatite surfaces varies over a large range. The most immature apatitic samples exhibited the highest affinity and the greatest amount adsorbed at saturation. Maturation of the nanocrystals induces a decrease of these values. The amount of phosphate ion released per adsorbed BP molecule varied, depending on the nanocrystalline substrate considered. The adsorption mechanism, although associated with a release of phosphate ions, cannot be considered as a simple ion exchange process involving one or two phosphate ions on the surface. A two-step process is proposed consisting of a surface binding of BP groups to calcium ions associated with a proton release inducing the protonation of surface orthophosphate ions and their eventual solubilization.
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Affiliation(s)
- Patricia Pascaud
- CIRIMAT, INPT-CNRS-UPS, Université de Toulouse, Université Paul Sabatier, Toulouse, France
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30
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Chen C, Xia M, Wu L, Zhou C, Wang F. Modeling the interaction of seven bisphosphonates with the hydroxyapatite(100) face. J Mol Model 2012; 18:4007-12. [PMID: 22453641 DOI: 10.1007/s00894-012-1398-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2011] [Accepted: 03/01/2012] [Indexed: 10/28/2022]
Abstract
The interaction of seven pamidronate bisphosphonate (Pami-BPs) and its analogs with the hydroxyapatite (HAP) (100) surface was studied using density functional theory (DFT) and molecular dynamic (MD) methods. Partial Mulliken oxygen atomic charges in protonated structures were calculated at the level of B3LYP/6-31G*. The MD simulation was performed using the Discover module of Material Studio by compass force field. The results indicate the abilities of donating electrons of the oxygen atoms of the phosphate groups that are closely associated with the antiresorptive potency. The binding energies, including vdw and electrostatic, are used to discuss the mechanism of antiresorption. The results of calculations show that the strength of interaction of the HAP (100) face with the bisphosphonates is N(4) > N(6) > N(7) > N(5) > N(3) > N(2) > N(1) according to their experimental pIC(50) values.
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Affiliation(s)
- Chunyu Chen
- Institute of Industrial Chemistry, Nanjing University of Science and Technology, Nanjing, 210094, China
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31
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Fu X, Chen J, Wu D, Du Z, Lei Q, Cai Z, Schultze-Mosgau S. Effects of ovariectomy on rat mandibular cortical bone: a study using Raman spectroscopy and multivariate analysis. Anal Chem 2012; 84:3318-23. [PMID: 22401368 DOI: 10.1021/ac300046x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
To investigate the effects of ovariectomy (OVX) on rat mandibular bone, the physicochemical compositions of mandibular cortical bone of ovariectomy and sham operated rats 2, 4, and 8 months after surgery were compared using Raman spectroscopy. With principal component analysis and linear discriminant analysis based on the Raman spectra, the mandibular cortical bone of the OVX group was clearly distinguished from that of the sham-operated group 8 months after surgery with no overlap. Specifically, significant reductions in the mineral-to-matrix ratio and full width at half-maximum as well as a significant increase in the carbonate-to-phosphate ratio were observed in the mandibular cortical bone of the OVX group. Results support the hypothesis that Raman spectroscopy is sensitive enough to distinguish between OVX and sham-operated mandibles with multivariate analysis by detecting the chemical composition of the mandibular cortical bone. The parameters mineral-to-matrix ratio, carbonate-to-phosphate ratio, and full width at half-maximum can appropriately characterize changes in the chemical composition of the mandibular cortical bone after OVX.
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Affiliation(s)
- Xiaoming Fu
- School of Stomatology, Fujian Medical University, Fuzhou, Fujian 350000, China
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Zhang X, Hu J, Li Y, Yin G, Luo E. Effects of ibandronate-hydroxyapatite on resorptive activity of osteoclasts. Arch Med Sci 2011; 7:53-60. [PMID: 22291733 PMCID: PMC3258676 DOI: 10.5114/aoms.2011.20604] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2010] [Accepted: 07/15/2010] [Indexed: 01/22/2023] Open
Abstract
INTRODUCTION Bisphosphonates (BPs) can be locally used to improve the osteogenesis around hydroxyapatite (HA) implants. However, there are almost no reports discussing the effects of BPs in the bound state with HA on osteoclasts. Ibandronate is a BP widely used in clinical practice. This study was designed to evaluate the effects of ibandronate combined with HA on the morphology and resorptive activity of osteoclasts. MATERIAL AND METHODS The HA and ibandronate-HA were prepared. Osteoclasts were isolated from Sprague-Dawley rats and then the cells were cultured with both HA and ibandronate-HA. Then the cell morphology was inspected by inverted phase contrast microscope and transmission electron microscopy observation. The resorptive activity was tested using the dyeing agent seminaphthofluorescein and bone resorption assay. RESULTS Compared with the control group, the osteoclasts demonstrated morphological alterations, and the hydrogen ion concentration was significantly lower in the ibandronate-HA group. Areas of the resorption pits formed by the osteoclasts were significantly smaller, the trabecula thickness appeared thicker, and concentration of CTx was also significantly lower in the experimental group. CONCLUSIONS Resorptive activity of osteoclasts cultured with ibandronate-HA was weaker than that of the control group. Ibandronate on HA in the bound state could maintain its action as an inhibitor to osteoclasts.
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Affiliation(s)
- Xiaohui Zhang
- State Key Laboratory of Oral Disease, Sichuan University, Chengdu, Sichuan Province, China
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Griffith CS, De Los Reyes M, Scales N, Hanna JV, Luca V. Hybrid inorganic-organic adsorbents Part 1: Synthesis and characterization of mesoporous zirconium titanate frameworks containing coordinating organic functionalities. ACS APPLIED MATERIALS & INTERFACES 2010; 2:3436-3446. [PMID: 21073158 DOI: 10.1021/am100891u] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A series of functional hybrid inorganic-organic adsorbent materials have been prepared through postsynthetic grafting of mesoporous zirconium titanate xerogel powders using a range of synthesized and commercial mono-, bis-, and tris-phosphonic acids, many of which have never before been investigated for the preparation of hybrid phases. The hybrid materials have been characterized using thermogravimetric analysis, diffuse reflectance infrared (DRIFT) and 31P MAS NMR spectroscopic techniques and their adsorption properties studied using a 153Gd radiotracer. The highest level of surface functionalization (molecules/nm2) was observed for methylphosphonic acid (∼3 molecules/nm2). The level of functionalization decreased with an increase in the number of potential surface coordinating groups of the phosphonic acids. Spectral decomposition of the DRIFT and 31P MAS NMR spectra showed that each of the phosphonic acid molecules coordinated strongly to the metal oxide surface but that for the 1,1-bis-phosphonic acids and tris-phosphonic acids the coordination was highly variable resulting in a proportion of free or loosely coordinated phosphonic acid groups. Functionalization of a porous mixed metal oxide framework with the tris-methylenephosphonic acid (ATMP-ZrTi-0.33) resulted in a hybrid with the highest affinity for 153Gd3+ in nitric acid solutions across a wide range of acid concentrations. The ATMP-ZrTi-0.33 hybrid material extracted 153Gd3+ with a Kd value of 1×10(4) in 0.01 M HNO3 far exceeding that of the other hybrid phases. The unfunctionalized mesoporous mixed metal oxide had negligible affinity for Gd3+ (Kd<100) under identical experimental conditions. It has been shown that the presence of free or loosely coordinated phosphonic acid groups does not necessarily translate to affinity for 153Gd3+. The theoretical cation exchange capacity of the ATMP-ZrTi-0.33 hybrid phase for Gd3+ has been determined to be about 0.005 mmol/g in 0.01 M HNO3. This behavior and that of the other hybrid phases suggests that the surface-bound ATMP ligand functions as a chelating ligand toward 153Gd3+ under these acidic conditions.
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Affiliation(s)
- Christopher S Griffith
- Institute of Materials Engineering and ANSTO Minerals, Australian Nuclear Science and Technology Organisation, Locked Bag 2001, Kirrawee DC, New South Wales 2232, Australia
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Juillard A, Falgayrac G, Cortet B, Vieillard MH, Azaroual N, Hornez JC, Penel G. Molecular interactions between zoledronic acid and bone: An in vitro Raman microspectroscopic study. Bone 2010; 47:895-904. [PMID: 20656084 DOI: 10.1016/j.bone.2010.07.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2010] [Revised: 06/27/2010] [Accepted: 07/17/2010] [Indexed: 11/25/2022]
Abstract
The aim of this study was to investigate molecular interactions between a bisphosphonate (BP), zoledronic acid, and bone tissue by the use of Raman microspectroscopy. In this way, samples of hydroxyapatite (HA), as a bone model, and Wistar rat femurs were soaking in zoledronic acid solutions. Sample surfaces were studied by Environmental Scanning Electron Microscopy and Raman spectroscopy. The amount of zoledronic acid incorporated onto the samples and the inorganic phosphate released in solution were determined by (31)P NMR spectroscopy. Total carbonate content in solution was evaluated by inorganic carbon analyser. After impregnation new Raman bands with frequencies close to characteristic peaks of zoledronic acid (in particular phosphate moieties and imidazole ring of the R2 side-chain) were observed on both types of samples. Physico-chemical parameters of the bone were also significantly modified (P<0.0001). The mineral to organic ratio and the carbonate to phosphate ratio decreased and the crystallinity increased. Released inorganic phosphate and carbonate were detected in the solutions. The Raman shift of the bands corresponding to the phosphate groups and the imidazole ring of the BP highlight their implication in the binding to the mineral. The detection of released inorganic phosphate and carbonate in solution, the modifications of the mineral to phosphate ratio and the carbonate to phosphate ratio reveal that BP decrease the amount of inorganic phosphate and limit the dissolution of bone mineral. The increase of the crystallinity after BP binding shows a re-organisation of the lattice with a higher symmetry. Thus, it seems that zoledronic acid has an important contribution on the increase of crystallinity. The use of Raman spectrometry brings new and complementary information on the impact of zoledronic acid on bone composition at molecular level. Raman spectrometry could help to understand by which way BPs improve bone strength and decrease fracture risk.
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Synthesis, solution, and structural characterization of tetrahydrofuranyl-2,2-bisphosphonic acid disodium salt. Bioinorg Chem Appl 2010:563875. [PMID: 20467558 PMCID: PMC2868181 DOI: 10.1155/2010/563875] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2010] [Accepted: 02/26/2010] [Indexed: 11/17/2022] Open
Abstract
Bisphosphonates are biologically relevant therapeutics for bone disorders and cancer. Reaction of γ-chlorobutyric acid, phosphorus acid, and phosphorus trichloride without the use of solvent gave the tetrahydrofuranyl-2,2-bisphosphonate sodium salt (Na2H2L). The Na2H2L was isolated, characterized in solution by 1H, 13C, and 31P NMR spectroscopy and in solid state by single X-Ray crystallography. The crystal structure showed that the Na2H2L forms in the crystal infinite two-dimensional sheets stacked one parallel to the other. A comparison of the chelating properties of H2L2− with similar hydroxyl bisphosphonate ligands shows that the strength of the Na–O(furanyl/hydroxyl) bond is directly related to the total charge of the ligand anion.
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Umeda J, Moriya M, Sakamoto W, Yogo T. Synthesis of proton conductive inorganic–organic hybrid membranes from organoalkoxysilane and hydroxyalkylphosphonic acid. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2008.11.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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