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Kee CC, Ng K, Ang BC, Metselaar HSC. Synthesis, characterization and in-vitro biocompatibility of electrophoretic deposited europium-doped calcium silicate on titanium substrate. Ann Ital Chir 2022. [DOI: 10.1016/j.jeurceramsoc.2022.10.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2
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Piarulli S, Hansen BH, Ciesielski T, Zocher AL, Malzahn A, Olsvik PA, Sonne C, Nordtug T, Jenssen BM, Booth AM, Farkas J. Sources, distribution and effects of rare earth elements in the marine environment: Current knowledge and research gaps. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 291:118230. [PMID: 34597732 DOI: 10.1016/j.envpol.2021.118230] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 06/13/2023]
Abstract
Rare earth elements and yttrium (REY) are critical elements for a wide range of applications and consumer products. Their growing extraction and use can potentially lead to REY and anthropogenic-REY chemical complexes (ACC-REY) being released in the marine environment, causing concern regarding their potential effects on organisms and ecosystems. Here, we critically review the scientific knowledge on REY sources (geogenic and anthropogenic), factors affecting REY distribution and transfer in the marine environment, as well as accumulation in- and effects on marine biota. Further, we aim to draw the attention to research gaps that warrant further scientific attention to assess the potential risk posed by anthropogenic REY release. Geochemical processes affecting REY mobilisation from natural sources and factors affecting their distribution and transfer across marine compartments are well established, featuring a high variability dependent on local conditions. There is, however, a research gap with respect to evaluating the environmental distribution and fate of REY from anthropogenic sources, particularly regarding ACC-REY, which can have a high persistence in seawater. In addition, data on organismal uptake, accumulation, organ distribution and effects are scarce and at best fragmentary. Particularly, the effects of ACC-REY at organismal and community levels are, so far, not sufficiently studied. To assess the potential risks caused by anthropogenic REY release there is an urgent need to i) harmonise data reporting to promote comparability across studies and environmental matrices, ii) conduct research on transport, fate and behaviour of ACC-REY vs geogenic REY iii) deepen the knowledge on bioavailability, accumulation and effects of ACC-REY and REY mixtures at organismal and community level, which is essential for risk assessment of anthropogenic REY in marine ecosystems.
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Affiliation(s)
- Stefania Piarulli
- Department of Climate and Environment, SINTEF Ocean, Brattørkaia 17C, 7010, Trondheim, Norway.
| | - Bjørn Henrik Hansen
- Department of Climate and Environment, SINTEF Ocean, Brattørkaia 17C, 7010, Trondheim, Norway
| | - Tomasz Ciesielski
- Department of Biology, Norwegian University of Science and Technology, Høgskoleringen 5, 7491, Trondheim, Norway
| | - Anna-Lena Zocher
- Department of Physics and Earth Sciences, Jacobs University, Campus Ring 1, 28759, Bremen, Germany
| | - Arne Malzahn
- Department of Fisheries and New Biomarine Industry, SINTEF Ocean, Brattørkaia 17C, 7010, Trondheim, Norway
| | - Pål A Olsvik
- Faculty of Biosciences and Aquaculture, Nord University, Universitetsalléen 11, 8026, Bodø, Norway
| | - Christian Sonne
- Department of Bioscience, Aarhus University, Frederiksborgvej 399, DK, 4000, Roskilde, Denmark
| | - Trond Nordtug
- Department of Climate and Environment, SINTEF Ocean, Brattørkaia 17C, 7010, Trondheim, Norway
| | - Bjørn Munro Jenssen
- Department of Biology, Norwegian University of Science and Technology, Høgskoleringen 5, 7491, Trondheim, Norway
| | - Andy M Booth
- Department of Climate and Environment, SINTEF Ocean, Brattørkaia 17C, 7010, Trondheim, Norway
| | - Julia Farkas
- Department of Climate and Environment, SINTEF Ocean, Brattørkaia 17C, 7010, Trondheim, Norway
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Ivanova VY, Shurygin ID, Chevela VV, Ajsuvakova OP, Semenov VE, Bezryadin SG. New Aspects of Complex Formation in the Gadolinium(III)–Citric Acid System in Aqueous Solution. COMMENT INORG CHEM 2021. [DOI: 10.1080/02603594.2021.1976759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Valentina Yu. Ivanova
- Department of Inorganic Chemistry, A.M. Butlerov Institute of Chemistry of Kazan Federal University, Kazan, Russia
| | - Igor D. Shurygin
- Department of Inorganic Chemistry, A.M. Butlerov Institute of Chemistry of Kazan Federal University, Kazan, Russia
| | - Vladimir V. Chevela
- Department of Inorganic Chemistry, A.M. Butlerov Institute of Chemistry of Kazan Federal University, Kazan, Russia
| | - Olga P. Ajsuvakova
- All-Russian Research Institute of Phytopathology, Bolshie Vaazemy, Moscow, Russian Federation
| | - Vyacheslav E. Semenov
- A.E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Scientific Center, Russian Academy of Sciences, Kazan, Russia
| | - Sergey G. Bezryadin
- Department of Chemical Technology of Oil, Gas and Ecology Processing, Gubkin Russian State University of Oil and Gas (National Research University), Moscow, Russia
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He M, Fan M, Peng Z, Wang G. An overview of hydroxypyranone and hydroxypyridinone as privileged scaffolds for novel drug discovery. Eur J Med Chem 2021; 221:113546. [PMID: 34023737 DOI: 10.1016/j.ejmech.2021.113546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/20/2021] [Accepted: 05/09/2021] [Indexed: 01/07/2023]
Abstract
Hydroxypyranone and hydroxypyridinone are important oxygen-containing or nitrogen-containing heterocyclic nucleus and attracted increasing attention in medicinal chemistry and drug discovery over the past decade. Previous literature reports revealed that hydroxypyranone and hydroxypyridinone derivatives exhibit a wide range of pharmacological activities such as antibacterial, antifungal, antiviral, anticancer, anti-inflammatory, antioxidant, anticonvulsant, and anti-diabetic activities. In this review, we systematically summarized the literature reported biological activities of hydroxypyranone and hydroxypyridinone derivatives. In particular, we focus on their biological activity, structure-activity relationship (SAR), mechanism of action, and interaction mechanisms with the target. The collected information is expected to provide rational guidance for the development of clinically useful agents from these pharmacophores.
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Affiliation(s)
- Min He
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China; School of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Meiyan Fan
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China; School of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Zhiyun Peng
- College of Food Science and Technology, Shanghai Ocean University, Shanghai, China.
| | - Guangcheng Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China; Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang, China.
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5
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Di Y, Wasan EK, Cawthray J, Syeda J, Ali M, Cooper DML, Al-Dissi A, Ashjaee N, Cheng W, Johnston J, Weekes DM, Kostelnik TI, Orvig C, Wasan KM. Evaluation of La(XT), a novel lanthanide compound, in an OVX rat model of osteoporosis. Bone Rep 2021; 14:100753. [PMID: 33665236 PMCID: PMC7905442 DOI: 10.1016/j.bonr.2021.100753] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 12/24/2020] [Accepted: 02/03/2021] [Indexed: 11/16/2022] Open
Abstract
Purpose The purpose of this study was to evaluate the efficacy and toxicity of a novel lanthanum compound, La(XT), in an ovariectomized (OVX) rat model of osteoporosis. Methods Twenty-four ovariectomized female Sprague Dawley rats were divided into 3 groups receiving a research diet with/without treatment compounds (alendronate: 3 mg/kg; La(XT) 100 mg/kg) for three months. At the time of sacrifice, the kidney, liver, brain, lung and spleen were collected for histological examination. The trabecular bone structure of the tibiae was evaluated using micro-CT and a three-point metaphyseal mechanical test was used to evaluate bone failure load and stiffness. Results No significant differences were noted in plasma levels of calcium, phosphorus, creatinine, alanine aminotransferase (ALT), and aspartate aminotransferase (AST) between the La(XT) treatment compared to the non-treated OVX group. Alendronate-treated animals (positive control) showed higher BV/TV, Tb.N and lower Tb.Th and Tb.Sp when compared to the non-treated OVX group. Mechanical analysis indicated that stiffness was higher in the alendronate (32.88%, p = 0.04) when compared to the non-treated OVX group. Failure load did not differ among the groups. Conclusions No kidney or liver toxicities of La(XT) treatments were found during the three-month study. The absence of liver and kidney toxicity with drug treatment for 3 months, as well as the increased trabecular bone stiffness are encouraging for the pursuit of further studies with La(XT) for a longer duration of time.
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Key Words
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- BMD, bone mineral density
- BV/TV, bone volume fraction
- CRF, chronic renal failure
- Ca2+, calcium
- Cr, creatinine
- HAP, hydroxyapatite
- La(XT)
- La3+, lanthanum
- Lanthanum
- OVX
- OVX, ovariectomized
- Osteoporosis
- SD, Sprague Dawley
- Tb.N, trabecular number
- Tb.Sp, trabecular separation
- Tb.Th, trabecular thickness
- Toxicity
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Affiliation(s)
- Yunyun Di
- College of Pharmacy and Nutrition, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada
| | - Ellen K Wasan
- College of Pharmacy and Nutrition, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada
| | - Jacqueline Cawthray
- College of Pharmacy and Nutrition, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada
| | - Jaweria Syeda
- College of Pharmacy and Nutrition, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada
| | - Munawar Ali
- College of Pharmacy and Nutrition, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada
| | - David M L Cooper
- Department of Anatomy Physiology and Pharmacology, College of Medicine, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK S7N 5E5, Canada
| | - Ahmad Al-Dissi
- Western College of Veterinary Medicine, University of Saskatchewan, 52 Campus Drive, Saskatoon, SK S7N 5B4, Canada
| | - Nima Ashjaee
- College of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada
| | - Wubin Cheng
- College of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada
| | - James Johnston
- College of Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, SK S7N 5A9, Canada
| | - David M Weekes
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Thomas I Kostelnik
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada
| | - Kishor M Wasan
- College of Pharmacy and Nutrition, University of Saskatchewan, 104 Clinic Place, Saskatoon, SK S7N 2Z4, Canada.,Department of Urologic Sciences, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
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Makarova SV, Bulina NV, Prosanov IY, Ishchenko AV, Chaikina MV. Mechanochemical Synthesis of Apatite with the Simultaneous Substitutions of Calcium by Lanthanum and Phosphate by Silicate. RUSS J INORG CHEM+ 2020. [DOI: 10.1134/s0036023620120116] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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7
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Dressler VL, Ogunmodede OT, Heidrich GM, Neves VM, Schetinger MRC, Morsch VM. Investigative Analysis of Lanthanum Oxide Nanoparticles on Elements in Bone of Wistar Rats After 30 Days of Repeated Oral Administration. Biol Trace Elem Res 2020; 196:153-167. [PMID: 31656980 DOI: 10.1007/s12011-019-01907-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/16/2019] [Indexed: 12/28/2022]
Abstract
Accumulation of lanthanum oxide nanoparticles (La2O3NPs) in the femur bone of rats after 30 days of oral administration was explored. Also, the influence of La2O3NPs on macro and trace elements in the rats' femur bone was assessed. Inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma optical spectrometry (ICP OES) were used for total element determination in the bone after decomposition while laser ablation-ICP-MS (LA-ICP-MS) was used to investigate element distribution (bio-imaging) in the bone. Some differences in element concentrations in the bone between the rats treated with La2O3NPs at 1.0 mg kg-1 (T1), 10.0 mg kg-1 (T2), and 100 mg kg-1 (T3) body weight (bw) and the control rats (CTR) were observed. More differences were observed in the bone of rat treated with 10.0 mg kg-1 La2O3NPs bw. However, the highest change observed was for Mg, which concentration ranged from 5230 ± 12 μg kg-1 for the CTR group to 4130 ± 138 μg kg-1 for the T3 group. Minor changes were observed for Ba, Ca, Cr, Cu, Fe, Mg, Na, Pb, Sr, and Zn between CTR and animals treated with La2O3NPs at the different levels of concentration. It was possible to observe from LA-ICP-MS analysis that La2O3NPs were accumulated only on the surface of the bone, not deeper than about 5 μm. LA-ICP-MS allowed also to investigate the distribution of La and the other elements in a cross section of the femur bone head, where higher amounts of the elements are present at the external part of the bone. Therefore, it was demonstrated that La2O3NPs are incorporated on the surface of the bone and it has a small influence on some of the other elements evaluated.
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Affiliation(s)
- Valderi Luiz Dressler
- Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, RS, 97105-900, Brazil.
| | | | - Graciela Marine Heidrich
- Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | - Vinicius Machado Neves
- Departamento de Química, Universidade Federal de Santa Maria, Santa Maria, RS, 97105-900, Brazil
| | | | - Vera Maria Morsch
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Santa Maria, Santa Maria, RS, 97105-900, Brazil
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Shurygin AV, Vovna VI, Korochentsev VV, Mirochnik AG, Sergienko VI. Electronic Structure of Eu(III) Adducts with OP(C6H5)3 and OP[NMe2]3. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476619120084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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9
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Thiele NA, Woods JJ, Wilson JJ. Implementing f-Block Metal Ions in Medicine: Tuning the Size Selectivity of Expanded Macrocycles. Inorg Chem 2019; 58:10483-10500. [DOI: 10.1021/acs.inorgchem.9b01277] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Wieszczycka K, Staszak K, Woźniak-Budych MJ, Jurga S. Lanthanides and tissue engineering strategies for bone regeneration. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.03.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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11
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Götzke L, Schaper G, März J, Kaden P, Huittinen N, Stumpf T, Kammerlander KK, Brunner E, Hahn P, Mehnert A, Kersting B, Henle T, Lindoy LF, Zanoni G, Weigand JJ. Coordination chemistry of f-block metal ions with ligands bearing bio-relevant functional groups. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.01.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Kaur K, Singh KJ, Anand V, Bhatia G, Singh AP, Kaur M. Elucidating the role of size of hydroxyl apatite particles toward the development of competent antiosteoporotic bioceramic materials: In vitro and in vivo studies. J Biomed Mater Res A 2019; 107:1723-1735. [PMID: 30924267 DOI: 10.1002/jbm.a.36687] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 02/14/2019] [Accepted: 03/15/2019] [Indexed: 12/26/2022]
Abstract
Osteoporosis caused by overdose of steroids is one of the major concerns for the orthopedic surgeons. Current therapeutic strategies offer limited success due to their inability to regenerate damaged bone at osteoporosis site. Therefore, there is an urgent need to develop a material having bone regeneration ability and also, ability to cure osteoporosis simultaneously. In this work, nanosized and microsized hydroxyl apatite (HAp) particles doped with europium (Eu) were prepared for diagnostic and therapeutic applications in biomedical engineering. Particles were characterized by X-ray diffraction to confirm the formation of HAp phase and transmission electron microscopy technique has been used to explore the size of microparticle and nanoparticle. In vitro release of antibiotic drug and degradation behavior in two different pHs of phosphate buffered saline was checked. Controlled drug release behavior and conversion of degraded ions into HAp is estimated by Higuchi's and 3D diffusion model, respectively. Osteoporosis was induced in 36 female Wistar rats by administering dexamethasone once a week for four consecutive weeks. Rats were treated with different doses of nano-HAp (25, 50, and 100 μg/kg intravenous single dose) and single dose of microsized HAp (100 μg/kg). After treatment, authors have evaluated sensitive biochemical markers of bone in serum. Continuous improvement in ultimate stiffness and Young's modulus of femur shaft of rats was observed with the increase in the dose of nano-HAp from 25 to 100 μg/kg. Results strongly suggest that europium-doped nano-HAp is more effective for treating severe osteoporosis in humans. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 107A: 1723-1735, 2019.
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Affiliation(s)
- Kulwinder Kaur
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - K J Singh
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Vikas Anand
- Department of Physics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Gaurav Bhatia
- Department of Molecular Biology & Biochemistry, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Amrit Pal Singh
- Department of Pharmaceutical Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Manpreet Kaur
- Department of Human Genetics, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
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Oesterle A, Boehm AV, Müller FA. Photoluminescent Eu 3+-Doped Calcium Phosphate Bone Cement and Its Mechanical Properties. MATERIALS 2018; 11:ma11091610. [PMID: 30181495 PMCID: PMC6163723 DOI: 10.3390/ma11091610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 08/16/2018] [Accepted: 09/03/2018] [Indexed: 12/30/2022]
Abstract
Calcium phosphate cements (CPC) are well-established bone replacement materials that have been used in dentistry and orthopedics for more than 25 years. The monitoring of bone cements and the associated healing processes in the human body is difficult and so far has often been achieved using cytotoxic X-ray contrast agent additives. These additives have a negative effect on the mechanical properties and setting time of the bone cement. In this paper, we present a novel approach to prepare contrastive CPC by the incorporation of luminescent Eu3+-doped hydroxyapatite (Eu:HAp) nanoparticles. Eu-doped CPC (Eu:CPC) exhibited enhanced mechanical properties compared to pure CPC. Furthermore, the red photoluminescence of Eu:CPC may allow the observation of CPC-related healing processes without the use of harmful ionizing radiation.
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Affiliation(s)
- Annemarie Oesterle
- Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany.
| | - Anne V Boehm
- Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany.
| | - Frank A Müller
- Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany.
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14
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Bulina NV, Chaikina MV, Prosanov IY, Komarova EG, Sedelnikova MB, Sharkeev YP, Sheikin VV. Lanthanum-silicate-substituted apatite synthesized by fast mechanochemical method: Characterization of powders and biocoatings produced by micro-arc oxidation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:435-446. [PMID: 30184769 DOI: 10.1016/j.msec.2018.06.057] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 04/17/2018] [Accepted: 06/27/2018] [Indexed: 01/21/2023]
Abstract
Lanthanum-silicate substituted apatite with equal concentrations of the substituents in the range of 0.2-6.0 mol were produced by a fast method - mechanochemical synthesis. This method makes it possible to synthesize a nanosized single-phase product by activating reaction mixtures containing CaHPO4, CaO, La(OH)3 and SiO2·H2O for 25-30 min in AGO-2 and AGO-3 planetary mills. The structure of the apatites was investigated by the FTIR and XRD methods. It was found that the synthesized samples with substituent concentrations up to 2 mol are substituted oxy-hydroxyapatites, at higher concentrations, they are substituted oxyapatites. The mechanochemically synthesized apatite with a substituent concentration of 0.5 mol was used for depositing biocoatings on titanium substrates by the micro-arc oxidation method. The structure of the coatings is mainly amorphous. In vitro biological tests demonstrated high biocompatibility of the coatings and the absence of cytotoxic action on mesenchymal stem cells.
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Affiliation(s)
- Natalia V Bulina
- Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, Novosibirsk 630128, Russia.
| | - Marina V Chaikina
- Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, Novosibirsk 630128, Russia
| | - Igor Yu Prosanov
- Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, Novosibirsk 630128, Russia
| | - Ekaterina G Komarova
- Institute of Strength Physics and Materials Science SB RAS, Academicheskii Pr. 2/4, Tomsk 634055, Russia
| | - Mariya B Sedelnikova
- Institute of Strength Physics and Materials Science SB RAS, Academicheskii Pr. 2/4, Tomsk 634055, Russia
| | - Yurii P Sharkeev
- Institute of Strength Physics and Materials Science SB RAS, Academicheskii Pr. 2/4, Tomsk 634055, Russia
| | - Vladimir V Sheikin
- Siberian State Medical University, Moscovskii Tr. 2, Tomsk 634050, Russia
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15
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Weekes DM, Cawthray JF, Rieder M, Syeda J, Ali M, Wasan E, Kostelnik TI, Patrick BO, Panahifar A, Al-Dissi A, Cooper D, Wasan KM, Orvig C. La(iii) biodistribution profiles from intravenous and oral dosing of two lanthanum complexes, La(dpp) 3 and La(XT), and evaluation as treatments for bone resorption disorders. Metallomics 2018; 9:902-909. [PMID: 28561856 DOI: 10.1039/c7mt00133a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Trivalent lanthanum (La3+) has the potential to treat bone resorption disorders (such as osteoporosis) by eliciting a bone-building response in the cells which control skeletal remodelling. Because La3+ suffers from extremely poor intestinal absorption, specifically designed chelators are required in order that a biologically active form of lanthanum can be administered orally. Two such chelators, 1,2-dimethyl-3-hydroxy-4-pyridinone (Hdpp) and bis-{[bis(carboxymethyl)amino]methy}phosphinic acid (H5XT), have previously been the subjects of extensive physical, in vitro, and in vivo testing as the tris- and mono-lanthanum(iii) complexes La(dpp)3 and La(XT), respectively. In this manuscript, we expand upon those studies to include 4-week intravenous (IV) and oral La3+ biodistribution profiles, which show that the metal ion initially accumulates in the liver followed by preferential redistribution and retention by bone. Of the two compounds, La(XT) demonstrates the more favourable in vivo characteristics, therefore dose-dependent oral biodistribution studies were carried out with this complex. These show drug saturation above a dose of 100 mg kg-1 day-1, so liver histology was performed in order to assess any potential toxicity. Finally, we improve upon the physical characterization of La(dpp)3 to include a single crystal X-ray structure, which exhibits an 8-coorindate La3+ centre with two bound water molecules, and a disordered exoclathrate-type hydrogen bonded network.
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Affiliation(s)
- D M Weekes
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
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Cawthray J, Wasan E, Wasan K. Bone-seeking agents for the treatment of bone disorders. Drug Deliv Transl Res 2018; 7:466-481. [PMID: 28589453 DOI: 10.1007/s13346-017-0394-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The targeting and delivery of therapeutic and diagnostic agents to bone tissue presents both a challenge and opportunity. Osteoporosis, Paget's disease, cancer, and bone metastases are all skeletal diseases whose treatment would benefit from new targeted therapeutic strategies. Osteoporosis, in particular, is a very prevalent disease, affecting over one in three women and one in five men in Canada alone with the cost to the healthcare system estimated at over $2.3 billion in 2010. Bone tissue is often considered a rigid structure when in reality there is a process of continuous remodeling that takes place via complex endocrine-regulated cell signaling pathways in addition to the signaling pathways unique to bone tissue. It is these specific boneremodeling processes that provide unique targeting opportunities but also present a number of challenges.
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Affiliation(s)
- Jacqueline Cawthray
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada.
| | - Ellen Wasan
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - Kishor Wasan
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
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17
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Seleem AA, Hussein BHM. Synthesis and effect of a new Terbium gibberellic complex on the histopathological alteration induced by Gibberellic acid on liver and kidney of mice Mus musculus. Chem Biol Drug Des 2018; 92:1288-1300. [DOI: 10.1111/cbdd.13191] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 01/31/2018] [Accepted: 02/18/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Amin A. Seleem
- Biology Department; Faculty of Science and Arts; Al Ula; Taibah University; Almadinah Almunawwarah Saudi Arabia
- Zoology Department; Faculty of Science; Sohag University; Sohag Egypt
| | - Belal H. M. Hussein
- Chemistry Department; Faculty of Science and Arts; Al Ula; Taibah University; Almadinah Almunawwarah Saudi Arabia
- Chemistry Department; Faculty of Science; Suez Canal University; Ismailia Egypt
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18
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Sun G, Li Z, Liu T, Chen J, Wu T, Feng X. Rare earth elements in street dust and associated health risk in a municipal industrial base of central China. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2017; 39:1469-1486. [PMID: 28550599 DOI: 10.1007/s10653-017-9982-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 05/15/2017] [Indexed: 06/07/2023]
Abstract
The content levels, distribution characteristics, and health risks associated with 15 rare earth elements (REEs) in urban street dust from an industrial city, Zhuzhou, in central China were investigated. The total REE content (∑REE) ranged from 66.1 to 237.4 mg kg-1, with an average of 115.9 mg kg-1, which is lower than that of Chinese background soil and Yangtze river sediment. Average content of the individual REE in street dust decreased in the order Ce > La > Nd > Y > Pr > Sm > Gd > Dy > Er > Yb > Eu > Ho > Tb > Tm > Lu. The chondrite-normalized REE pattern indicated light REE (LREE) enrichment, a relatively steep LREE trend, heavy REE (HREE) depletion, a flat HREE trend, a Eu-negative anomaly and a Ce-positive anomaly. Foremost heavy local soil and to less degree anthropogenic pollution are the main sources of REE present in street dust. Health risk associated with the exposure of REE in street dust was assessed based on the carcinogenic and non-carcinogenic effect and lifetime average daily dose. The obtained cancer and non-cancer risk values prompt for no augmented health hazard. However, children had greater health risks than that of adults.
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Affiliation(s)
- Guangyi Sun
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhonggen Li
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
| | - Ting Liu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Ji Chen
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
- Guizhou Provincial Laboratory for Mountainous Environment, Guizhou Normal University, Guiyang, 550001, China
| | - Tingting Wu
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
- Key Laboratory of Karst Environment and Geohazard Prevention, Guizhou University, Guiyang, 550003, China
| | - Xinbin Feng
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
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19
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Shurygin AV, Korochentsev VV, Cherednichenko AI, Vovna VI. Electronic structure of adducts of Eu(III) TRIS-β—diketonates with phenanthroline: photoelectron and theoretical studies. J STRUCT CHEM+ 2017. [DOI: 10.1134/s0022476617060075] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Significantly Enhancing the Ignition/Compression/Damping Response of Monolithic Magnesium by Addition of Sm2O3 Nanoparticles. METALS 2017. [DOI: 10.3390/met7090357] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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21
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Weekes DM, Jaraquemada-Peláez MDG, Kostelnik TI, Patrick BO, Orvig C. Di- and Trivalent Metal-Ion Solution Studies with the Phosphinate-Containing Heterocycle DEDA-(PO). Inorg Chem 2017; 56:10155-10161. [DOI: 10.1021/acs.inorgchem.7b01117] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David M. Weekes
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Maria de Guadalupe Jaraquemada-Peláez
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Thomas I. Kostelnik
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Brian O. Patrick
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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22
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Bulina NV, Chaikina MV, Prosanov IY, Dudina DV, Solovyov LA. Fast synthesis of La-substituted apatite by the dry mechanochemical method and analysis of its structure. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2017.05.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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23
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Weekes DM, Ramogida CF, Jaraquemada-Peláez MDG, Patrick BO, Apte C, Kostelnik TI, Cawthray JF, Murphy L, Orvig C. Dipicolinate Complexes of Gallium(III) and Lanthanum(III). Inorg Chem 2016; 55:12544-12558. [DOI: 10.1021/acs.inorgchem.6b02357] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David M. Weekes
- Medicinal Inorganic Chemistry Group, Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Caterina F. Ramogida
- Medicinal Inorganic Chemistry Group, Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Maria de Guadalupe Jaraquemada-Peláez
- Medicinal Inorganic Chemistry Group, Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Brian O. Patrick
- Medicinal Inorganic Chemistry Group, Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Chirag Apte
- Medicinal Inorganic Chemistry Group, Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Thomas I. Kostelnik
- Medicinal Inorganic Chemistry Group, Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Jacqueline F. Cawthray
- Medicinal Inorganic Chemistry Group, Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Lisa Murphy
- Medicinal Inorganic Chemistry Group, Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department
of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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24
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Affiliation(s)
- Ying-Jie Zhu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, P. R. China
| | - Xiao-Xuan Guo
- Department of Chemistry, University of Western Ontario, London, ON, Canada
| | - Tsun-Kong Sham
- Department of Chemistry, University of Western Ontario, London, ON, Canada
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25
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Wu C, Xia L, Han P, Mao L, Wang J, Zhai D, Fang B, Chang J, Xiao Y. Europium-Containing Mesoporous Bioactive Glass Scaffolds for Stimulating in Vitro and in Vivo Osteogenesis. ACS APPLIED MATERIALS & INTERFACES 2016; 8:11342-11354. [PMID: 27096527 DOI: 10.1021/acsami.6b03100] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Bone tissue engineering offers a possible strategy for regenerating large bone defects, in which how to design beneficial scaffolds for accelerating bone formation remains significantly challenging. Europium, as an important rare earth element, has been used as a solid-state lighting material. However, there are few reports on whether Eu can be used for labeling bone tissue engineering scaffolds, and its biological effect on bone cells and bone tissue regeneration is unknown. In this study, we incorporated Eu into mesoporous bioactive glass (Eu-MBG) scaffolds by an in situ cotemplate method to achieve a bifunctional biomaterial with biolabeling and bone regeneration. The prepared Eu-MBG scaffolds have highly interconnective large pores (300-500 μm), a high specific surface area (140-290 m(2)/g), and well-ordered mesopores (5 nm) as well as uniformly distributed Eu. The incorporation of 2-5 mol % Eu into MBG scaffolds gives them a luminescent property. The in vitro degradation of Eu-MBG scaffolds has a functional effect on the change of the luminescence intensity. In addition, Eu-MBG can be used for labeling bone marrow stromal cells (BMSCs) in vitro and still presents a distinct luminescence signal in deep bone tissues in vivo to label new bone tissue via release of Eu ions. Furthermore, the incorporation of different contents of Eu (1, 2, and 5 mol %) into MBG scaffolds significantly enhances the osteogenic gene expression of BMSCs in the scaffolds. The Eu- and Si-containing ionic products released from Eu-MBG scaffolds distinctly promote the osteogenic differentiation of BMSCs. Critically sized femur defects in ovariectomized (OVX) rats are created to simulate an osteoporotic phenotype. The results show that Eu-MBG scaffolds significantly stimulate new bone formation in osteoporotic bone defects when compared to MBG scaffolds alone and Eu may be involved in the acceleration of bone regeneration in OVX rats. Our study for the first time reports that the incorporation of the rare earth element Eu into bioscaffolds has the ability to accelerate bone regeneration in vivo, and thus, the prepared Eu-MBG scaffolds possess bifunctional properties with biolabeling and bone regeneration.
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Affiliation(s)
- Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
| | - Lunguo Xia
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai 200011, People's Republic of China
| | - Pingping Han
- Institute of Health & Biomedical Innovation, Queensland University of Technology , Brisbane, Queensland 4059, Australia
| | - Lixia Mao
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai 200011, People's Republic of China
| | - Jiacheng Wang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
| | - Dong Zhai
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
| | - Bing Fang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine , Shanghai 200011, People's Republic of China
| | - Jiang Chang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , Shanghai 200050, People's Republic of China
| | - Yin Xiao
- Institute of Health & Biomedical Innovation, Queensland University of Technology , Brisbane, Queensland 4059, Australia
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26
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Synthesis, spectral properties and DNA binding and nuclease activity of lanthanide (III) complexes of 2-benzoylpyridine benzhydrazone: X-ray crystal structure, Hirshfeld studies and nitrate-π interactions of cerium(III) complex. J CHEM SCI 2016. [DOI: 10.1007/s12039-015-1003-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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27
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Weekes DM, Orvig C. Harnessing the bone-seeking ability of Ca(ii)-like metal ions in the treatment of metastatic cancer and resorption disorders. Chem Soc Rev 2016; 45:2024-31. [DOI: 10.1039/c5cs00712g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
In this tutorial review, we explore how a special relationship between metal ions and bones has been exploited to target therapeutic agents.
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Affiliation(s)
- D. M. Weekes
- Medicinal Inorganic Chemistry Group
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
| | - C. Orvig
- Medicinal Inorganic Chemistry Group
- Department of Chemistry
- University of British Columbia
- Vancouver
- Canada
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28
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Cawthray JF, Weekes DM, Sivak O, Creagh AL, Ibrahim F, Iafrate M, Haynes CA, Wasan KM, Orvig C. In vivo study and thermodynamic investigation of two lanthanum complexes, La(dpp) 3 and La(XT), for the treatment of bone resorption disorders. Chem Sci 2015; 6:6439-6447. [PMID: 30090262 PMCID: PMC6054118 DOI: 10.1039/c5sc01767j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Accepted: 08/02/2015] [Indexed: 02/03/2023] Open
Abstract
Bone density diseases such as osteoporosis affect a significant number of people worldwide. Lanthanide ions are functional mimics of calcium ions, able to substitute for Ca2+ in the bone mineral component, hydroxyapatite (HAP). Bone undergoes a continuous remodelling cycle and lanthanides can affect this cycle, exerting a positive influence on bone mineral. We have been engaged in efforts to find new lanthanide containing complexes as active agents for treatment of these diseases and have identified two lead compounds, 3-hydroxy-1,2-dimethylpyridin-4(1H)-one (Hdpp) and a phosphinate-EDTA derivative, bis[[bis(carboxymethyl)amino]-methyl]phosphinate (H5XT). In this paper, we report in vivo data for the first time for the two lead compounds. The pharmacokinetics of La(dpp)3 suggest the complex is rapidly cleared from plasma. We demonstrate that La3+ accumulates in the bone following IV dose of either La(dpp)3 or La(XT) and we have investigated the influence of each chelating ligand on the incorporation of La3+ into HAP using ITC and HAP-binding studies.
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Affiliation(s)
- J F Cawthray
- College of Pharmacy and Nutrition , University of Saskatchewan , 104 Clinic Place , Saskatoon , SK S7N 2Z4 , Canada .
| | - D M Weekes
- Medicinal Inorganic Chemistry Group , Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , BC V6T 1Z1 , Canada .
| | - O Sivak
- Faculty of Pharmaceutical Sciences , University of British Columbia , 2146 East Mall , Vancouver , BC V6T 1Z3 , Canada
| | - A L Creagh
- Michael Smith Laboratories and Department of Chemical and Biological Engineering , University of British Columbia , Vancouver , BC V6T 1Z4 , Canada
| | - F Ibrahim
- Pfizer Inc. , Eastern Point Road , Groton , CT 06340 , USA
| | - M Iafrate
- Medicinal Inorganic Chemistry Group , Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , BC V6T 1Z1 , Canada .
| | - C A Haynes
- Michael Smith Laboratories and Department of Chemical and Biological Engineering , University of British Columbia , Vancouver , BC V6T 1Z4 , Canada
| | - K M Wasan
- College of Pharmacy and Nutrition , University of Saskatchewan , 104 Clinic Place , Saskatoon , SK S7N 2Z4 , Canada .
| | - C Orvig
- Medicinal Inorganic Chemistry Group , Department of Chemistry , University of British Columbia , 2036 Main Mall , Vancouver , BC V6T 1Z1 , Canada .
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29
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Study of homo- and heteronuclear complex formation in 1-hydroxyethylidene-1,1-diphosphonic acid (HEDP)—erbium(iii) and HEDP—erbium(iii)—calcium(ii) systems in an aqueous solution. Russ Chem Bull 2015. [DOI: 10.1007/s11172-015-1085-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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30
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Choi AH, Ben-Nissan B. Calcium phosphate nanocoatings and nanocomposites, part I: recent developments and advancements in tissue engineering and bioimaging. Nanomedicine (Lond) 2015; 10:2249-61. [PMID: 26119630 DOI: 10.2217/nnm.15.57] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A number of materials have been applied as implant coatings and as tissue regeneration materials. Calcium phosphate holds a special consideration, due to its chemical similarity to human bone and, most importantly, its dissolution characteristics, which allow for bone growth and regeneration. The applications of molecular and nanoscale-based biological materials have been and will continue to play an ever increasing role in enhancing and improving the osseointegration of dental and orthopedic implants. More recently, extensive research efforts have been focused on the development and applications of fluorescent nanoparticles and nanocoatings for in vivo imaging and diagnostics as well as devising methods of adding luminescent or fluorescent capabilities to enhance the in vivo functionality of calcium phosphate-based biomedical materials.
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Affiliation(s)
- Andy H Choi
- Faculty of Science, University of Technology, Sydney, NSW, Australia
| | - Besim Ben-Nissan
- Faculty of Science, University of Technology, Sydney, NSW, Australia
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31
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Raja K, Suseelamma A, Reddy KH. Synthesis, spectral properties, DNA binding interactions and DNA cleavage studies of lanthanide (III) complexes of 2-acetylpyridine acetoylhydrazone: the X-ray crystal structure of 10-coordinate Ce (III) and Sm (III) complexes. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2015. [DOI: 10.1007/s13738-015-0624-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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32
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Cawthray JF, Creagh AL, Haynes CA, Orvig C. Ion Exchange in Hydroxyapatite with Lanthanides. Inorg Chem 2015; 54:1440-5. [DOI: 10.1021/ic502425e] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jacqueline F. Cawthray
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
| | - A. Louise Creagh
- Michael Smith Laboratories and Department
of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4
| | - Charles A. Haynes
- Michael Smith Laboratories and Department
of Chemical and Biological Engineering, University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z4
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia, Canada V6T 1Z1
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33
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Andrássy L, Maros G, Kovács IJ, Horváth Á, Gulyás K, Bertalan É, Besnyi A, Füri J, Fancsik T, Szekanecz Z, Bhattoa HP. [Applicability of laser-based geological techniques in bone research: analysis of calcium oxide distribution in thin-cut animal bones]. Orv Hetil 2014; 155:1783-93. [PMID: 25362641 DOI: 10.1556/oh.2014.30010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The structural similarities between the inorganic component of bone tissue and geological formations make it possible that mathematic models may be used to determine weight percentage composition of different mineral element oxides constituting the inorganic component of bone tissue. The determined weight percentage composition can be verified with the determination of element oxide concentration values by laser induced plasma spectroscopy and inductively coupled plasma optical emission spectrometry. It can be concluded from calculated weight percentage composition of the inorganic component of bone tissue and laboratory analyses that the properties of bone tissue are determined primarily by hydroxylapatite. The inorganic bone structure can be studied well by determining the calcium oxide concentration distribution using the laser induced plasma spectroscopy technique. In the present study, thin polished bone slides prepared from male bovine tibia were examined with laser induced plasma spectroscopy in a regular network and combined sampling system to derive the calculated calcium oxide concentration distribution. The superficial calcium oxide concentration distribution, as supported by "frequency distribution" curves, can be categorized into a number of groups. This, as such, helps in clearly demarcating the cortical and trabecular bone structures. Following analyses of bovine tibial bone, the authors found a positive association between the attenuation value, as determined by quantitative computer tomography and the "ρ" density, as used in geology. Furthermore, the calculated "ρ" density and the measured average calcium oxide concentration values showed inverse correlation.
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Affiliation(s)
| | - Gyula Maros
- Magyar Földtani és Geofizikai Intézet Budapest
| | | | - Ágnes Horváth
- Debreceni Egyetem, Általános Orvostudományi Kar Reumatológiai Tanszék Debrecen Nagyerdei krt. 98. 4032
| | - Katalin Gulyás
- Debreceni Egyetem, Általános Orvostudományi Kar Reumatológiai Tanszék Debrecen Nagyerdei krt. 98. 4032
| | | | | | - Judit Füri
- Magyar Földtani és Geofizikai Intézet Budapest
| | | | - Zoltán Szekanecz
- Debreceni Egyetem, Általános Orvostudományi Kar Reumatológiai Tanszék Debrecen Nagyerdei krt. 98. 4032
| | - Harjit Pal Bhattoa
- Debreceni Egyetem, Általános Orvostudományi Kar Laboratóriumi Medicina Intézet Debrecen
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34
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Racles C, Silion M, Iacob M. Lanthanum complex of a multifunctional water-soluble siloxane compound—Synthesis, surface activity and applications for nanoparticles stabilization. Colloids Surf A Physicochem Eng Asp 2014. [DOI: 10.1016/j.colsurfa.2014.08.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Shang HB, Chen F, Wu J, Qi C, Lu BQ, Chen X, Zhu YJ. Multifunctional biodegradable terbium-doped calcium phosphate nanoparticles: facile preparation, pH-sensitive drug release and in vitro bioimaging. RSC Adv 2014. [DOI: 10.1039/c4ra09902h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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36
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Telpoukhovskaia MA, Rodríguez-Rodríguez C, Cawthray JF, Scott LE, Page BDG, Alí-Torres J, Sodupe M, Bailey GA, Patrick BO, Orvig C. 3-Hydroxy-4-pyridinone derivatives as metal ion and amyloid binding agents. Metallomics 2014; 6:249-62. [PMID: 23999879 DOI: 10.1039/c3mt00135k] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Metal ions have been implicated in several neurodegenerative diseases, including Alzheimer's disease, as their dyshomeostasis may lead to production of reactive oxygen species as well as increased toxicity of amyloid protein aggregates. In this work, we present design and synthesis of three novel multifunctional hydroxypyridinone ligands, HL11, HL12, and HL13, bearing benzothiazole and benzoxazole functionalities. We study the ability of these compounds to bind metal ions Cu(II), Zn(II), and Fe(III), as well as their antioxidant activity and cytotoxicity. Additionally, we determine the pro-ligands' (compounds prior to chelation) propensity to target amyloid protein. Through these studies we determine the effect of combining amyloid- and metal-binding functionalities within the HPO scaffold on different aspects of AD pathology.
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Affiliation(s)
- Maria A Telpoukhovskaia
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
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37
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Systematic investigation and in vitro biocompatibility studies on mesoporous europium doped hydroxyapatite. OPEN CHEM 2014. [DOI: 10.2478/s11532-014-0554-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
AbstractThis paper reports the systematic investigation of europium doped hydroxyapatite (Eu:HAp). A set of complementary techniques, namely Fourier Transform Infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM) and the Brunauer-Emmett-Teller (BET) technique were used towards attaining a detailed understanding of Eu:HAp. The XPS analysis confirmed the substitution of Ca ions by Eu ions in the Eu:HAp samples. Secondly, Eu:HAp and pure HAp present type IV isotherms with a hysteresis loop at a relative pressure (P/P0) between 0.4 and 1.0, indicating the presence of mesopores. Finally, the in vitro biological effects of Eu:HAp nanoparticles were evaluated by focusing on the F-actin filament pattern and heat shock proteins (Hsp) expression in HEK293 human kidney cell line. Fluorescence microscopy studies of the actin protein revealed no changes of the immunolabelling profile in the renal cells cultured in the presence of Eu:HAp nanoparticles. Hsp60, Hsp70 and Hsp90 expressions measured by Western blot analysis were not affected after 24 and 48 hours exposure. Taken together, these results confirmed the lack of toxicity and the biocompatibility of the Eu:HAp nanoparticles. Consequently, the possibility of using these nanoparticles for medical purposes without affecting the renal function can be envisaged.
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Price EW, Zeglis BM, Lewis JS, Adam MJ, Orvig C. H6phospa-trastuzumab: bifunctional methylenephosphonate-based chelator with 89Zr, 111In and 177Lu. Dalton Trans 2014; 43:119-31. [PMID: 24104523 PMCID: PMC3872121 DOI: 10.1039/c3dt51940f] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The acyclic chelator H6phospa and the bifunctional derivative p-SCN-Bn-H6phospa have been synthesized using nosyl protection chemistry and evaluated with (89)Zr, (111)In, and (177)Lu. The p-SCN-Bn-H6phospa derivative was successfully conjugated to trastuzumab with isotopic dilution assays indicating 3.3 ± 0.1 chelates per antibody and in vitro cellular binding assays indicating an immunoreactivity value of 97.9 ± 2.6%. Radiolabeling of the H6phospa-trastuzumab immunoconjugate was achieved with (111)In in 70-90% yields at room temperature in 30 minutes, while (177)Lu under the same conditions produced more inconsistent yields of 40-80%. Stability experiments in human serum revealed the (111)In-phospa-trastuzumab complex to be 52.0 ± 5.3% intact after 5 days at 37 °C, while the (177)Lu-phospa-trastuzumab to be only 2.0 ± 0.3% intact. Small animal SPECT/CT imaging using mice bearing subcutaneous SKOV-3 ovarian cancer xenografts was performed, and it was found that (111)In-phospa-trastuzumab successfully identified and delineated small (~2 mm in diameter) tumors from surrounding tissues, despite visible uptake in the kidneys and bone due to moderate chelate instability. As predicted from stability assays in serum, the (177)Lu-phospa-trastuzumab conjugate served as a negative control and displayed no tumor uptake, with high uptake in bones indicating rapid and complete radiometal dissociation and suggesting a potential application of H6phospa in transient lanthanide chelation for bone-delivery. Radiolabeling with (89)Zr was attempted, but even with elevated temperatures of 37 °C, the maximum observed radiometal incorporation over 18 hours was 12%. It can be concluded from this work that H6phospa is not superior to the previously studied H4octapa for use with (111)In and (177)Lu, but improvements in (89)Zr radiolabeling were observed over H4octapa, suggesting H6phospa to be an excellent starting point for elaboration of (89)Zr-based radiopharmaceutical development. To our knowledge, H6phospa is the best desferrioxamine alternative for (89)Zr radiolabeling to be studied to date.
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Affiliation(s)
- Eric W. Price
- Medicinal Inorganic Chemistry Group, Department of
Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British
Columbia, Canada, V6T 1Z1. Telephone: (604) 822-4449. Fax: (604) 822-2847
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia,
Canada, V6T 2A3. Telephone: (604) 222-7527. Fax: (604) 222-1074
| | - Brian M. Zeglis
- Memorial Sloan-Kettering Cancer Center (MSKCC), Memorial
Hospital, 1275 York Avenue, New York, New York, 10065, United States. Telephone:
(646) 888-3038
| | - Jason S. Lewis
- Memorial Sloan-Kettering Cancer Center (MSKCC), Memorial
Hospital, 1275 York Avenue, New York, New York, 10065, United States. Telephone:
(646) 888-3038
| | - Michael J. Adam
- TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia,
Canada, V6T 2A3. Telephone: (604) 222-7527. Fax: (604) 222-1074
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department of
Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British
Columbia, Canada, V6T 1Z1. Telephone: (604) 822-4449. Fax: (604) 822-2847
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Morais DS, Coelho J, Ferraz MP, Gomes PS, Fernandes MH, Hussain NS, Santos JD, Lopes MA. Samarium doped glass-reinforced hydroxyapatite with enhanced osteoblastic performance and antibacterial properties for bone tissue regeneration. J Mater Chem B 2014; 2:5872-5881. [DOI: 10.1039/c4tb00484a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Cell adhesion of MG63 osteoblastic cells seeded over GR-HA_control and Sm doped composites, at day 1 of culture. Low (A) and high (B) CLSM images of cells stained for F-actin cytoskeleton (green) and nuclei (red); (C) SEM images.
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Affiliation(s)
- Diana Santos Morais
- CEMUC
- Departamento de Engenharia Metalúrgica e Materiais
- Faculdade de Engenharia
- Universidade do Porto (FEUP)
- Porto, Portugal
| | - João Coelho
- INESC Porto/Departamento de Física
- Faculdade de Ciências
- Universidade do Porto (FCUP)
- Porto, Portugal
| | - Maria Pia Ferraz
- CEBIMED-Centro de Estudos em Biomedicina
- Faculdade de Ciências da Saúde
- Universidade Fernando Pessoa (FCS-UFP)
- Porto, Portugal
| | - Pedro Sousa Gomes
- Laboratory for Bone Metabolism and Regeneration-Faculdade de Medicina Dentária
- Universidade do Porto (FMDUP)
- Porto, Portugal
| | - Maria Helena Fernandes
- Laboratory for Bone Metabolism and Regeneration-Faculdade de Medicina Dentária
- Universidade do Porto (FMDUP)
- Porto, Portugal
| | - Nandyala Sooraj Hussain
- INESC Porto/Departamento de Física
- Faculdade de Ciências
- Universidade do Porto (FCUP)
- Porto, Portugal
| | - José Domingos Santos
- CEMUC
- Departamento de Engenharia Metalúrgica e Materiais
- Faculdade de Engenharia
- Universidade do Porto (FEUP)
- Porto, Portugal
| | - Maria Ascensão Lopes
- CEMUC
- Departamento de Engenharia Metalúrgica e Materiais
- Faculdade de Engenharia
- Universidade do Porto (FEUP)
- Porto, Portugal
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Xu W, Wang L, Wei K, Ling Y, Zhong S. In vitro osteogenesis of mesenchymal stem cells promoted by the release of La3+ and SiO44− from sheet-shaped lanthanum dropped hexagonal mesoporous silicon. RSC Adv 2014. [DOI: 10.1039/c4ra02987a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Mawani Y, Orvig C. Improved separation of the curcuminoids, syntheses of their rare earth complexes, and studies of potential antiosteoporotic activity. J Inorg Biochem 2013; 132:52-8. [PMID: 24387940 DOI: 10.1016/j.jinorgbio.2013.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 12/09/2013] [Accepted: 12/13/2013] [Indexed: 10/25/2022]
Abstract
The first reported homogenous rare earth curcumin (HCurc; ((1E,6E)-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,6-diene-3,5-dione)) complexes with the formula ML3, where M(3+) is Eu(III), Gd(III) or Lu(III), were synthesized and characterized by mass spectrometry, infrared spectroscopy and, in the case of the lutetium complex, (1)H NMR spectroscopy. Most importantly an improved separation of the three curcuminoids, HCurc, HDMC ((1E,6E)-1-(4-hydroxy-3-methoxyphenyl)-7-(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione) and HBDMC ((1E,6E)-1,7-bis(4-hydroxyphenyl)hepta-1,6-diene-3,5-dione) was realized using a combination of normal-phase column and phosphate-impregnated preparative-thin layer chromatographies. The toxicities of the metal curcumin complexes and ligands were investigated in MG-63 cells, an osteoblast-like cell line, for potential activity as antiosteoporotic agents.
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Affiliation(s)
- Yasmin Mawani
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Chris Orvig
- Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada.
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Inductively coupled plasma-MS in drug development: bioanalytical aspects and applications. Bioanalysis 2013; 4:1933-65. [PMID: 22943623 DOI: 10.4155/bio.12.141] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The vast majority of today's modern bioanalytical methods for pharmacokinetic, pharmacodynamic and immunogenicity purposes are based on LC-MS/MS and immunoanalytical approaches. Indeed, these methodologies are suitable for a wide range of molecules from small to large. For a smaller but not insignificant group of compounds, LC-MS/MS is not suitable - or in some cases much less suitable - as a reliable bioanalytical methodology, and inductively coupled plasma (ICP)-MS is a more appropriate methodology. ICP-MS is one of these less widely used techniques in drug development. This methodology is predominantly used for elemental bioanalysis for pharmacokinetics, for imaging purposes, for mass-balance, food-effect and biomarker studies. In addition, in the last couple of years an increasing number of applications has been published, where ICP-MS and its various hyphenations (LC-ICP-MS, CE-ICP-MS) have been used for speciation/metabolism and proteomics studies. Here, the analytical potential, the quantitative bioanalytical aspects, the various modes of operation and the challenges of the application of ICP-MS in life sciences applications are given. This includes an overview of recent applications in this area in scientific literature, the various hyphenation possibilities and their application areas and the analysis of the various sample matrices applicable to these fields. It also provides a brief outlook of where the potential of this technique lies in the future of regulated bioanalysis and drug development.
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Mawani Y, Cawthray JF, Chang S, Sachs-Barrable K, Weekes DM, Wasan KM, Orvig C. In vitro studies of lanthanide complexes for the treatment of osteoporosis. Dalton Trans 2013; 42:5999-6011. [DOI: 10.1039/c2dt32373g] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Multifunctional Eu3+/Gd3+ dual-doped calcium phosphate vesicle-like nanospheres for sustained drug release and imaging. Biomaterials 2012; 33:6447-55. [DOI: 10.1016/j.biomaterials.2012.05.059] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2012] [Accepted: 05/27/2012] [Indexed: 12/22/2022]
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45
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Bulska E, Danko B, Dybczyński RS, Krata A, Kulisa K, Samczyński Z, Wojciechowski M. Inductively coupled plasma mass spectrometry in comparison with neutron activation and ion chromatography with UV/VIS detection for the determination of lanthanides in plant materials. Talanta 2012; 97:303-11. [DOI: 10.1016/j.talanta.2012.04.035] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 04/13/2012] [Accepted: 04/19/2012] [Indexed: 12/21/2022]
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46
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Kijkowska R, Malina D, Sobczak-Kupiec A, Wzorek Z, Orlicki R. Effect of Ca on HoPO 4·nH 2O (n = 1 and 2) crystallization from phosphoric acid solution. CRYSTAL RESEARCH AND TECHNOLOGY 2012. [DOI: 10.1002/crat.201200083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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47
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Vidaud C, Bourgeois D, Meyer D. Bone as Target Organ for Metals: The Case of f-Elements. Chem Res Toxicol 2012; 25:1161-75. [DOI: 10.1021/tx300064m] [Citation(s) in RCA: 90] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Claude Vidaud
- CEA, IBEB, LEPC, BP 17171, F-30207
Bagnols-sur-Cèze, France
| | - Damien Bourgeois
- ICSM, UMR 5257/CEA/CNRS/UM2/ENSCM,
BP17171, F-30207 Bagnols-sur-Cèze, France
| | - Daniel Meyer
- ICSM, UMR 5257/CEA/CNRS/UM2/ENSCM,
BP17171, F-30207 Bagnols-sur-Cèze, France
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Guillaume SM, Brignou P, Susperregui N, Maron L, Kuzdrowska M, Kratsch J, Roesky PW. Bis(phosphinimino)methanide borohydride complexes of the rare-earth elements as initiators for the ring-opening polymerization of trimethylene carbonate: combined experimental and computational investigations. Polym Chem 2012. [DOI: 10.1039/c1py00487e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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The photoluminescence, drug delivery and imaging properties of multifunctional Eu3+/Gd3+ dual-doped hydroxyapatite nanorods. Biomaterials 2011; 32:9031-9. [DOI: 10.1016/j.biomaterials.2011.08.032] [Citation(s) in RCA: 265] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Accepted: 08/10/2011] [Indexed: 12/29/2022]
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50
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Gadolinium inhibits prostate cancer PC3 cell migration and suppresses osteoclast differentiationin vitro. Cell Biol Int 2011; 35:1159-67. [DOI: 10.1042/cbi20100870] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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