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da Cruz JA, Pezarini RR, Sales AJM, Benjamin SR, de Oliveira Silva PM, Graça MPF. Study of biphasic calcium phosphate ( BCP) ceramics of tilapia fish bones by age. Spectrochim Acta A Mol Biomol Spectrosc 2024; 316:124289. [PMID: 38692101 DOI: 10.1016/j.saa.2024.124289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Revised: 04/08/2024] [Accepted: 04/11/2024] [Indexed: 05/03/2024]
Abstract
Biphasic calcium phosphate (BCP), consisting of bioceramics such as HAp + β-TCP and Ca10(PO4)6(OH)2 + Ca3(PO4)2, is a popular choice for optimizing performance due to its superior biological reabsorption and osseointegration. In this study, BCP was produced by calcining the bones of tilapia fish (Oreochromis niloticus) reared in net cages and slaughtered at an age ranging from 15 to 420 days. The bones were cleaned and dried, calcined at 900 °C for 8 h, and then subjected to high-energy grinding for 3 h to produce BCP powders. After the calcination process, the crystalline phase's hydroxyapatite (HAp) and/or beta-tricalcium phosphate (β-TCP) were present in the composition of the bioceramic. The age-dependent variation in phase composition was confirmed by complementary vibrational spectroscopy techniques, revealing characteristic peaks and bands of the bioceramic. This variation was marked by an increase in HAp phase and a decrease in β-TCP phase. Thermogravimetric Analysis (TGA) and Differential Thermal Analysis (DTA) from 25 to 1400 °C showed the characteristic mass losses of the material, with a greater loss observed for younger fish, indicating the complete removal of organic components at temperatures above 600 °C. Comparison of the results obtained by X-Ray Diffraction (XRD) and Rietveld refinement with Raman spectroscopy showed excellent agreement. These results showed that with temperature and environment control and adequate fish feeding, it is possible to achieve the desired amounts of each phase by choosing the ideal age of the fish. This bioceramic enables precise measurement of HAp and β-TCP concentrations and Ca/P molar ratio, suitable for medical orthopedics and dentistry.
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Affiliation(s)
- José Adauto da Cruz
- Department of Environment, State University of Maringá, Umuarama, PR ,87506-370, Brazil; Department of Physics, State University of Maringá, Maringá, PR, 87020-900, Brazil; i3N-Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal.
| | - Rogério Ribeiro Pezarini
- Department of Environment, State University of Maringá, Umuarama, PR ,87506-370, Brazil; Department of Physics, State University of Maringá, Maringá, PR, 87020-900, Brazil
| | - Antonio Jefferson Mangueira Sales
- i3N-Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal; Telecommunications and Materials Science and Engineering Laboratory (LOCEM), Federal University of Ceará (UFC), Fortaleza, CE, 60455-760, Brazil
| | - Stephen Rathinaraj Benjamin
- Telecommunications and Materials Science and Engineering Laboratory (LOCEM), Federal University of Ceará (UFC), Fortaleza, CE, 60455-760, Brazil; Behavioral Neuroscience Laboratory, Drug Research and Development Center (NPDM), Department of Physiology and Pharmacology, Federal University of Ceará (UFC), Coronel Nunes de Melo 1127, Porangabussu, Fortaleza, Ceará, 60430-270, Brazil
| | - Paulo Maria de Oliveira Silva
- Telecommunications and Materials Science and Engineering Laboratory (LOCEM), Federal University of Ceará (UFC), Fortaleza, CE, 60455-760, Brazil
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Qiao L, Giannakou M, Schmid F. An Efficient and Accurate SCF Algorithm for Block Copolymer Films and Brushes Using Adaptive Discretizations. Polymers (Basel) 2024; 16:1228. [PMID: 38732697 PMCID: PMC11085556 DOI: 10.3390/polym16091228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
Self-consistent field (SCF) theory serves as a robust tool for unraveling the intricate behavior exhibited by soft polymeric materials. However, the accuracy and efficiency of SCF calculations are crucially dependent on the numerical methods employed for system discretization and equation-solving. Here, we introduce a simple three dimensional SCF algorithm that uses real-space methods and adaptive discretization, offering improved accuracy and efficiency for simulating polymeric systems at surfaces. Our algorithm's efficacy is demonstrated through simulations of two distinct polymeric systems, namely, block copolymer (BCP) films and polymer brushes. By enhancing spatial resolution in regions influenced by external forces and employing finer contour discretization at grafting chain ends, we achieve significantly more accurate results at very little additional cost, enabling the study of 3D polymeric systems that were previously computationally challenging. To facilitate the widespread use of the algorithm, we have made our 1D-3D SCF code publicly available.
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Affiliation(s)
- Le Qiao
- Institut für Physik, Johannes Gutenberg-Universität Mainz, D55099 Mainz, Germany;
| | | | - Friederike Schmid
- Institut für Physik, Johannes Gutenberg-Universität Mainz, D55099 Mainz, Germany;
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Zhang J, Zhang H, Luo S, Ye L, Wang C, Wang X, Tian C, Sun Y. Analysis and Functional Prediction of Core Bacteria in the Arabidopsis Rhizosphere Microbiome under Drought Stress. Microorganisms 2024; 12:790. [PMID: 38674734 PMCID: PMC11052302 DOI: 10.3390/microorganisms12040790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 04/01/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
The effects of global warming, population growth, and economic development are increasing the frequency of extreme weather events, such as drought. Among abiotic stresses, drought has the greatest impact on soil biological activity and crop yields. The rhizosphere microbiota, which represents a second gene pool for plants, may help alleviate the effects of drought on crops. In order to investigate the structure and diversity of the bacterial communities on drought stress, this study analyzed the differences in the bacterial communities by high-throughput sequencing and bioinformatical analyses in the rhizosphere of Arabidopsis thaliana under normal and drought conditions. Based on analysis of α and β diversity, the results showed that drought stress had no significant effect on species diversity between groups, but affected species composition. Difference analysis of the treatments showed that the bacteria with positive responses to drought stress were Burkholderia-Caballeronia-Paraburkholderia (BCP) and Streptomyces. Drought stress reduced the complexity of the rhizosphere bacterial co-occurrence network. Streptomyces was at the core of the network in both the control and drought treatments, whereas the enrichment of BCP under drought conditions was likely due to a decrease in competitors. Functional prediction showed that the core bacteria metabolized a wide range of carbohydrates, such as pentose, glycans, and aromatic compounds. Our results provide a scientific and theoretical basis for the use of rhizosphere microbial communities to alleviate plant drought stress and the further exploration of rhizosphere microbial interactions under drought stress.
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Affiliation(s)
- Jianfeng Zhang
- Key Laboratory of Straw Comprehensive Utilization and Black Soil, Conservation College of Life Science, The Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (J.Z.); (H.Z.); (L.Y.); (X.W.)
| | - Hengfei Zhang
- Key Laboratory of Straw Comprehensive Utilization and Black Soil, Conservation College of Life Science, The Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (J.Z.); (H.Z.); (L.Y.); (X.W.)
| | - Shouyang Luo
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (S.L.); (C.W.); (C.T.)
| | - Libo Ye
- Key Laboratory of Straw Comprehensive Utilization and Black Soil, Conservation College of Life Science, The Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (J.Z.); (H.Z.); (L.Y.); (X.W.)
| | - Changji Wang
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (S.L.); (C.W.); (C.T.)
| | - Xiaonan Wang
- Key Laboratory of Straw Comprehensive Utilization and Black Soil, Conservation College of Life Science, The Ministry of Education, Jilin Agricultural University, Changchun 130118, China; (J.Z.); (H.Z.); (L.Y.); (X.W.)
| | - Chunjie Tian
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (S.L.); (C.W.); (C.T.)
| | - Yu Sun
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China; (S.L.); (C.W.); (C.T.)
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Liu X, Zhao S, Zhao Q, Chen Y, Jia S, Xiang R, Zhang J, Sun J, Xu Y, Zhao M. Butein, a potential drug for the treatment of bone cancer pain through bioinformatic and network pharmacology. Toxicol Appl Pharmacol 2023; 472:116570. [PMID: 37268026 DOI: 10.1016/j.taap.2023.116570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 05/23/2023] [Accepted: 05/26/2023] [Indexed: 06/04/2023]
Abstract
Bone cancer pain is a difficult-to-treat pathologic condition that impairs the patient's quality of life. The effective therapy options for BCP are restricted due to the unknown pathophysiology. Transcriptome data were obtained from the Gene Expression Omnibus database and differentially expressed gene extraction was performed. DEGs integrated with pathological targets found 68 genes in the study. Butein was discovered as a possible medication for BCP after the 68 genes were submitted to the Connectivity Map 2.0 database for drug prediction. Moreover, butein has good drug-likeness properties. To collect the butein targets, we used the CTD, SEA, TargetNet, and Super-PRED databases. Furthermore, Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses revealed butein's pharmacological effects, indicating that butein may aid in treating BCP by altering the hypoxia-inducible factor, NF-kappa B, angiogenesis, and sphingolipid signaling pathways. Moreover, the pathological targets integrated with drug targets were obtained as the shared gene set A, which was analyzed by ClueGO and MCODE. Biological process analysis and MCODE algorithm further analyzed that BCP related targets were mainly involved in signal transduction process and ion channel-related pathways. Next, we integrated targets related to network topology parameters and targets of core pathways, identified PTGS2, EGFR, JUN, ESR1, TRPV1, AKT1 and VEGFA as butein regulated hub genes by molecular docking, which play a critical role in its analgesic effect. This study lays the scientific groundwork for elucidating the mechanism underlying butein's success in the treatment of BCP.
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Affiliation(s)
- Xin Liu
- School of Life Sciences and Biopharmaceutical Science, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Shangfeng Zhao
- School of Life Sciences and Biopharmaceutical Science, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Qianqian Zhao
- School of Life Sciences and Biopharmaceutical Science, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Yiwei Chen
- School of Life Sciences and Biopharmaceutical Science, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Shubing Jia
- School of Life Sciences and Biopharmaceutical Science, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Rongwu Xiang
- School of Medical Devices, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Jinghai Zhang
- School of Medical Devices, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Jianfang Sun
- School of Life Sciences and Biopharmaceutical Science, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Yijia Xu
- School of Life Sciences and Biopharmaceutical Science, Shenyang Pharmaceutical University, Shenyang 110016, PR China.
| | - Mingyi Zhao
- School of Life Sciences and Biopharmaceutical Science, Shenyang Pharmaceutical University, Shenyang 110016, PR China.
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Ding Z, Liang X, Wang J, Song Z, Guo Q, Schäfer MKE, Huang C. Inhibition of spinal ferroptosis-like cell death alleviates hyperalgesia and spontaneous pain in a mouse model of bone cancer pain. Redox Biol 2023; 62:102700. [PMID: 37084690 PMCID: PMC10141498 DOI: 10.1016/j.redox.2023.102700] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/29/2023] [Accepted: 04/11/2023] [Indexed: 04/23/2023] Open
Abstract
Bone cancer pain (BCP) impairs patients' quality of life. However, the underlying mechanisms are still unclear. This study investigated the role of spinal interneuron death using a pharmacological inhibitor of ferroptosis in a mouse model of BCP. Lewis lung carcinoma cells were inoculated into the femur, resulting in hyperalgesia and spontaneous pain. Biochemical analysis revealed that spinal levels of reactive oxygen species and malondialdehyde were increased, while those of superoxide dismutase were decreased. Histological analysis showed the loss of spinal GAD65+ interneurons and provided ultrastructural evidence of mitochondrial shrinkage. Pharmacologic inhibition of ferroptosis using ferrostatin-1 (FER-1, 10 mg/kg, intraperitoneal for 20 consecutive days) attenuated ferroptosis-associated iron accumulation and lipid peroxidation and alleviated BCP. Furthermore, FER-1 inhibited the pain-associated activation of ERK1/2 and COX-2 expression and prevented the loss of GABAergic interneurons. Moreover, FER-1 improved analgesia by the COX-2 inhibitor Parecoxib. Taken together, this study shows that pharmacological inhibition of ferroptosis-like cell death of spinal interneurons alleviates BCP in mice. The results suggest that ferroptosis is a potential therapeutic target in patients suffering on BCP and possibly other types of pain.
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Affiliation(s)
- Zhuofeng Ding
- Department of Anesthesiology, Xiangya Hospital Central South University, Changsha, 410008, China
| | - Xiaoshen Liang
- Department of Anesthesiology, Xiangya Hospital Central South University, Changsha, 410008, China
| | - Jian Wang
- Department of Anesthesiology, Xiangya Hospital Central South University, Changsha, 410008, China
| | - Zongbin Song
- Department of Anesthesiology, Xiangya Hospital Central South University, Changsha, 410008, China
| | - Qulian Guo
- Department of Anesthesiology, Xiangya Hospital Central South University, Changsha, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, 410008, China
| | - Michael K E Schäfer
- Department of Anesthesiology, University Medical Center, Johannes Gutenberg-University Mainz, Germany; Focus Program Translational Neurosciences (FTN) and Research Center of Immunotherapy of the Johannes Gutenberg-University Mainz, Germany
| | - Changsheng Huang
- Department of Anesthesiology, Xiangya Hospital Central South University, Changsha, 410008, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital Central South University, Changsha, 410008, China.
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6
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Takano H, Katsuyama H, Hayashi H, Harukawa M, Tsurui M, Shoji S, Hasegawa Y, Maeda S, Mita T. Synthesis of Bicyclo[1.1.1]pentane ( BCP)-Based Straight-Shaped Diphosphine Ligands. Angew Chem Int Ed Engl 2023; 62:e202303435. [PMID: 36961369 DOI: 10.1002/anie.202303435] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/21/2023] [Accepted: 03/22/2023] [Indexed: 03/25/2023]
Abstract
[1.1.1]Propellane, which is structurally simple and compact, exhibits promising potential for the synthesis of disubstituted straight-shaped bicyclo[1.1.1]pentane (BCP) compounds by manipulation of its highly reactive internal C-C bond. BCPs are considered to be isosteres of 1,4-disubstituted benzenes, which have found broad applications in the areas of functional molecules and drug discovery. The internal C-C single bond of [1.1.1]propellane is regarded as a charge-shift bond, which can be readily cleaved by radical means to construct BCPs. We herein report a novel synthetic method for (un)symmetric diphosphines based on the BCP motif, which can be interpreted as isosteres of 1,4-bis(diphenylphosphino)benzenes. The obtained BCP-diphosphine derivatives were used to generate a straight-shaped Au complex and an Eu-based coordination polymer.
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Affiliation(s)
- Hideaki Takano
- Hokkaido University: Hokkaido Daigaku, Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), JAPAN
| | - Hitomi Katsuyama
- Hokkaido University: Hokkaido Daigaku, Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), JAPAN
| | - Hiroki Hayashi
- Hokkaido University: Hokkaido Daigaku, Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), JAPAN
| | - Miyu Harukawa
- Hokkaido University: Hokkaido Daigaku, Faculty of Engineering, JAPAN
| | - Makoto Tsurui
- Hokkaido University: Hokkaido Daigaku, Faculty of Engineering, JAPAN
| | - Sunao Shoji
- Hokkaido University: Hokkaido Daigaku, Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), JAPAN
| | - Yasuchika Hasegawa
- Hokkaido University: Hokkaido Daigaku, Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), JAPAN
| | - Satoshi Maeda
- Hokkaido University: Hokkaido Daigaku, Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), JAPAN
| | - Tsuyoshi Mita
- Hokkaido University, Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Kita 21, Nishi 10, Kita-ku, 001-0021, Sapporo, JAPAN
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Swain S, Koduru JR, Rautray TR. Mangiferin-Enriched Mn-Hydroxyapatite Coupled with β-TCP Scaffolds Simultaneously Exhibit Osteogenicity and Anti-Bacterial Efficacy. Materials (Basel) 2023; 16:2206. [PMID: 36984085 PMCID: PMC10054241 DOI: 10.3390/ma16062206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Biphasic calcium phosphate (BCP) containing β-tricalcium phosphate and manganese (Mn)-substituted hydroxyapatite (HAP) was synthesized. Biomedical scaffolds were prepared using this synthesized powder on a sacrificial polyurethane sponge template after the incorporation of mangiferin (MAN). Mn was substituted at a concentration of 5% and 10% in HAP to examine the efficacy of Mn at various concentrations. The phase analysis of the as-formed BCP scaffold was carried out by X-ray diffraction analysis, while the qualitative observation of morphology and the osteoblast cell differentiation were carried out by scanning electron microscopy and confocal laser scanning microscopy techniques. Gene expressions of osteocalcin, collagen 1, and RUNX2 were carried out using qRT-PCR analyses. Significantly higher (p < 0.05) levels of ALP activity were observed with extended osteoblast induction on the mangiferin-incorporated BCP scaffolds. After characterization of the specimens, it was found that the scaffolds with 10% Mn-incorporated BCP with mangiferin showed better osteogenicity and simultaneously the same scaffolds exhibited higher anti-bacterial properties as observed from the bacterial viability test. This study was carried out to evaluate the efficacy of Mn and MAN in BCP for osteogenicity and antibacterial action.
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Affiliation(s)
- Subhasmita Swain
- Biomaterials and Tissue Regeneration Lab., CETMS, ITER, Siksha ‘O’ Anusandhan (Deemed to Be University), Bhubaneswar 751030, Odisha, India
| | - Janardhan Reddy Koduru
- Department of Environmental Engineering, Kwangwoon University, 20 Kwangwoon-Ro, Wolgye-Dong, Nowon-Gu, Seoul 01897, Republic of Korea
| | - Tapash Ranjan Rautray
- Biomaterials and Tissue Regeneration Lab., CETMS, ITER, Siksha ‘O’ Anusandhan (Deemed to Be University), Bhubaneswar 751030, Odisha, India
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8
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Feitosa LF, Campos RB, Richter WE. Energetics and electronics of polar Diels-Alder reactions at the atomic level: QTAIM and IQA analyses of complete IRC paths. J Mol Graph Model 2023; 118:108326. [PMID: 36166996 DOI: 10.1016/j.jmgm.2022.108326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/28/2022]
Abstract
The mechanism of Diels-Alder reactions between cyclopentadiene and several cyanoethylenes was studied by means of Density Functional Theory calculations using QTAIM and IQA (Interacting Quantum Atoms) analyses along complete IRC paths. Each geometry from the IRC had its wavefunction computed and the topology of the electronic density for it was then evaluated. By means of IQA, the global energetic profile was partitioned among the various atoms in the molecule, providing insight into what atoms are the main ones responsible for the magnitude of the energy barriers. The (a)synchronicity of the reaction mechanisms featuring non-symmetrically substituted dienophiles was characterized, from QTAIM, by the electron densities and Laplacians over the LCP's as well as by the different atomic energy barriers obtained from IQA. The magnitude of the atomic barrier nicely explains the (a)synchronicity of the reaction mechanisms, and the degree of (a)synchronicity is nicely revealed by the difference between the earlier and later bond breaking and bond formations. The main conclusion is that important energetic and electronic changes are occurring before and after the position of the transition state structure, mainly for those asynchronous mechanisms, and although these provide essential insight into the reaction mechanism, most studies cannot assess this kind of information because they are focusing solely on reactants, transition states, and products. We advocate that the additional computational effort required for such analyses is more than compensated by the great amount of useful information it provides.
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Affiliation(s)
- Lucas Freitas Feitosa
- Department of Chemistry and Biology, Federal University of Technology - Paraná [UTFPR], 81.280-340, Curitiba PR, Brazil
| | - Renan Borsoi Campos
- Department of Chemistry and Biology, Federal University of Technology - Paraná [UTFPR], 81.280-340, Curitiba PR, Brazil
| | - Wagner Eduardo Richter
- Department of Chemistry, Federal University of Technology - Paraná [UTFPR], 84.017-220, Ponta Grossa PR, Brazil.
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Priyadarshini I, Swain S, Koduru JR, Rautray TR. Electrically Polarized Withaferin A and Alginate-Incorporated Biphasic Calcium Phosphate Microspheres Exhibit Osteogenicity and Antibacterial Activity In Vitro. Molecules 2022; 28. [PMID: 36615281 DOI: 10.3390/molecules28010086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/06/2022] [Accepted: 12/18/2022] [Indexed: 12/24/2022]
Abstract
Biphasic calcium phosphate microspheres were synthesized by the water on oil emulsion method and, subsequently, withaferin A was incorporated in the microspheres to evaluate their efficacy in biomedical applications. These withaferin A and alginate-incorporated biphasic calcium phosphate (BCP-WFA-ALG) microspheres were then negatively polarized, and the formation of biphasic calcium phosphates was validated by X-ray diffraction study. Although the TSDC measurement of the BCP-WFA-ALG microspheres showed the highest current density of 5.37 nA/cm2, the contact angle of the specimen was found to be lower than the control BCP microspheres in all the media. The water uptake into BCP-WFA-ALG microspheres was significantly higher than in the pure BCP microspheres. MTT assay results showed that there was a significant enhancement in cell proliferation rate with the BCP-WFA-ALG composite microspheres. The osteogenic differentiation of MG 63 cells on BCP-WFA-ALG microspheres exhibited an increased expression of osteogenic marker genes in the case of the BCP-WFA-ALG composite microspheres.
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Yamada K, Toyota K, Tsunoda Y, Matahira Y, Matsumura S, Yoshioka Y, Zaima N, Unno N. Effects of inhaled β‑caryophyllene on vascular stiffness in smokers: A randomized, double‑blind, placebo‑controlled trial. Exp Ther Med 2022; 25:57. [PMID: 36588810 PMCID: PMC9780513 DOI: 10.3892/etm.2022.11756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/16/2022] [Indexed: 12/13/2022] Open
Abstract
Approximately 1.14 billion smokers worldwide are at risk of developing tumors, cardiovascular diseases and respiratory diseases. Smoking cessation is the first choice of health care; however, the disease should be attenuated in individuals who never stop smoking, which escalates medical costs. Therefore, alternative options are needed to manage the social burden. The present study proposed an alternative method to prevent such diseases by inhalation of β-caryophyllene (BCP). A placebo-targeted, dose-searching, double-blind, parallel-group comparative study was conducted on 19 subjects. The BCP intervention was performed using a flavor capsule inserted in a cigarette filter. The primary endpoint was the reducibility of brachial-ankle pulse wave velocity (baPWV). The secondary endpoints were confirmation of the bioavailability of BCP inhalation with cigarette smoke, confirmation of the effect of BCP inhalation on respiratory function, and association between respiratory function and blood concentration and baPWV reduction. The BCP concentration in the blood reached 4 ng/ml in the BCP 15% group 10 min after inhalation. The baPWV decreased in BCP-inhaling subjects whose initial baPWV was >1,300 cm/sec. The correlation analyses revealed that the higher the forced expiratory volume in 1 sec, the better the transition of baPWV. Inhaled BCP with cigarette smoke could reduce the baPWV and the risk of cardiovascular diseases in smokers. These findings indicated that with the introduction of BCP capsule-cigarettes in the future, smokers will be able to take care of their health, which may help reduce national medical costs. BCP microcapsules placed in cigarette wrapping paper may possibly reduce the risk of sidestream smoke and contribute to improved public health. This clinical research was retrospectively registered in the University Hospital Medical Information Network (UMIN)-Clinical Trials Registry with the following identifications: UMIN000048510 and UMIN000048512 on August 15, 2022.
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Affiliation(s)
- Kazuya Yamada
- Sunsho Pharmaceutical Co., Ltd., Fuji, Shizuoka 419-0201, Japan
| | - Kohei Toyota
- Sunsho Pharmaceutical Co., Ltd., Fuji, Shizuoka 419-0201, Japan
| | - Yamato Tsunoda
- Sunsho Pharmaceutical Co., Ltd., Fuji, Shizuoka 419-0201, Japan
| | | | | | - Yuri Yoshioka
- Inabata Koryo, Co., Ltd., Osaka, Osaka 532-0027, Japan
| | - Nobuhiro Zaima
- Department of Applied Biological Chemistry, Kindai University, Nara, Nara 631-8505, Japan,Agricultural Technology and Innovation Research Institute, Kindai University, Nara, Nara 631-8505, Japan,Correspondence to: Professor Nobuhiro Zaima, Department of Applied Biological Chemistry, Kindai University, 3327-204 Nakamachi, Nara, Nara 631-8505, Japan
| | - Naoki Unno
- Division of Vascular Surgery, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka 431-3192, Japan,Division of Vascular Surgery, Hamamatsu Medical Center, Hamamatsu, Shizuoka 432-8580, Japan
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11
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Blanton H, Yin L, Duong J, Benamar K. Cannabidiol and Beta-Caryophyllene in Combination: A Therapeutic Functional Interaction. Int J Mol Sci 2022; 23. [PMID: 36555111 DOI: 10.3390/ijms232415470] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/18/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Cannabis contains over 500 distinct compounds, which include cannabinoids, terpenoids, and flavonoids. However, very few of these compounds have been studied for their beneficial effects. There is an emerging concept that the constituents of the cannabis plant may work in concert to achieve better therapeutic benefits. This study is aimed at determining if the combination of a minor cannabinoid (cannabidiol, CBD) and a terpene (beta-caryophyllene, BCP) works in concert and if this has any therapeutic value. We used an inflammatory pain model (formalin) in mice to test for any functionality of CBD and BCP in combination. First, we determined the analgesic effect of CBD and BCP individually by establishing dose-response studies. Second, we tested the analgesic effect of fixed-ratio combinations and monitored any adverse effects. Finally, we determined the effect of this combination on inflammation. The combination of CBD and BCP produces a synergistic analgesic effect. This effect was without the cannabinoid receptor-1 side effects. The analgesic effect of CBD and BCP in combination involves an inflammatory mechanism. The combination of these two constituents of the cannabis plant, CBD and BCP, works in concert to produce a therapeutic effect with safety profiles through an inflammatory mechanism.
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Aubry C, Drouet C, Azaïs T, Kim HJ, Oh JM, Karacan I, Chou J, Ben-Nissan B, Camy S, Cazalbou S. Bio-Activation of HA/β-TCP Porous Scaffolds by High-Pressure CO 2 Surface Remodeling: A Novel "Coating-from" Approach. Materials (Basel) 2022; 15:7306. [PMID: 36295371 PMCID: PMC9610974 DOI: 10.3390/ma15207306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/07/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
Biphasic macroporous Hydroxyapatite/β-Tricalcium Phosphate (HA/β-TCP) scaffolds (BCPs) are widely used for bone repair. However, the high-temperature HA and β-TCP phases exhibit limited bioactivity (low solubility of HA, restricted surface area, low ion release). Strategies were developed to coat such BCPs with biomimetic apatite to enhance bioactivity. However, this can be associated with poor adhesion, and metastable solutions may prove difficult to handle at the industrial scale. Alternative strategies are thus desirable to generate a highly bioactive surface on commercial BCPs. In this work, we developed an innovative "coating from" approach for BCP surface remodeling via hydrothermal treatment under supercritical CO2, used as a reversible pH modifier and with industrial scalability. Based on a set of complementary tools including FEG-SEM, solid state NMR and ion exchange tests, we demonstrate the remodeling of macroporous BCP surface with the occurrence of dissolution-reprecipitation phenomena involving biomimetic CaP phases. The newly precipitated compounds are identified as bone-like nanocrystalline apatite and octacalcium phosphate (OCP), both known for their high bioactivity character, favoring bone healing. We also explored the effects of key process parameters, and showed the possibility to dope the remodeled BCPs with antibacterial Cu2+ ions to convey additional functionality to the scaffolds, which was confirmed by in vitro tests. This new process could enhance the bioactivity of commercial BCP scaffolds via a simple and biocompatible approach.
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Affiliation(s)
- Clémentine Aubry
- Centre Inter-Universitaire de Recherche et d’Ingénierie des Matériaux, CNRS/UT3/INP, Université de Toulouse, 31030 Toulouse, France
- Laboratoire de Génie Chimique, CNRS/UT3/INP, Université de Toulouse, 31030 Toulouse, France
- ARN: Régulation Naturelle et Artificielle, INSERM U1212, CNRS, Université de Bordeaux, 33076 Bordeaux, France
| | - Christophe Drouet
- Centre Inter-Universitaire de Recherche et d’Ingénierie des Matériaux, CNRS/UT3/INP, Université de Toulouse, 31030 Toulouse, France
| | - Thierry Azaïs
- Laboratoire de Chimie de la Matière Condensée de Paris-UMR 7574, CNRS, Sorbonne Université, 75005 Paris, France
| | - Hyoung-Jun Kim
- Department Energy and Materials Engineering, Dongguk University, Seoul 04620, Korea
- Research Institute, National Cancer Center, Goyang 10408, Korea
| | - Jae-Min Oh
- Department Energy and Materials Engineering, Dongguk University, Seoul 04620, Korea
| | - Ipek Karacan
- University of Technology Sydney, Ultimo 2007, Australia
| | - Joshua Chou
- University of Technology Sydney, Ultimo 2007, Australia
| | | | - Séverine Camy
- Laboratoire de Génie Chimique, CNRS/UT3/INP, Université de Toulouse, 31030 Toulouse, France
| | - Sophie Cazalbou
- Centre Inter-Universitaire de Recherche et d’Ingénierie des Matériaux, CNRS/UT3/INP, Université de Toulouse, 31030 Toulouse, France
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Xia F, Liu Z, Zhao M, Li Q, Li D, Cao W, Zeng C, Hu Y, Chen B, Bao Q, Zhang Y, He Q, Lai C, He X, Ma Z, Han Y, He H. High stability of autochthonous dissolved organic matter in karst aquatic ecosystems: Evidence from fluorescence. Water Res 2022; 220:118723. [PMID: 35696806 DOI: 10.1016/j.watres.2022.118723] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/20/2022] [Accepted: 06/06/2022] [Indexed: 05/26/2023]
Abstract
Biological carbon pump (BCP) in karst areas has received intensive attention for years due to their significant contribution to the global missing carbon sink. The stability of autochthonous dissolved organic matter (Auto-DOM) produced by BCP in karst aquatic ecosystems may play a critical role in the missing carbon sink. However, the source of dissolved organic matter (DOM) in inland waters and its consumption by planktonic bacteria have not been thoroughly examined. Recalcitrant dissolved organic matter (RDOM) may exist in karst aquatic ecosystem as in the ocean. Through the study of the chromophoric dissolved organic matter (CDOM) and the interaction between CDOM and the planktonic bacterial community under different land uses at the Shawan Karst Water-carbon Cycle Test Site, SW China, we found that C2, as the fluorescence component of Auto-DOM mineralised by planktonic bacteria, may have some of the characteristics of RDOM and is an important DOM source in karst aquatic ecosystems. The stability ratio (Fmax(C2/(C1+C2))) of Auto-DOM reached 89.6 ± 6.71% in winter and 64.1 ± 7.19% in spring. Moreover, correlation-based network analysis determined that the planktonic bacterial communities were controlled by different fluorescence types of CDOM, of which C1 (fresh Auto-DOM), C3 (conventional allochthonous DOM (Allo-DOM)) and C4 (the Allo-DOM mineralised by bacteria) were clustered in one module together with prevalent organic-degrading planktonic bacteria; C2 was clustered in another tightly combined module, suggesting specific microbial utilization strategies for the C2 component. In addition, some important planktonic bacterium and functional genes (including chemotrophic heterotrophs and photosynthetic bacteria) were found to be affected by high Ca2+ and dissolved inorganic carbon (DIC) concentrations in karst aquatic ecosystems. Our research showed that Auto-DOM may be as an important carbon sink as the Allo-DOM in karst ecosystems, the former generally being neglected based on a posit that it is easily and first mineralized by planktonic bacteria.
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Affiliation(s)
- Fan Xia
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100049, China; Puding Karst Ecosystem Research Station, CAS, Chinese Ecosystem Research Network, Puding 562100, China
| | - Zaihua Liu
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China; Puding Karst Ecosystem Research Station, CAS, Chinese Ecosystem Research Network, Puding 562100, China; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, China.
| | - Min Zhao
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China; Puding Karst Ecosystem Research Station, CAS, Chinese Ecosystem Research Network, Puding 562100, China
| | - Qiang Li
- Key Laboratory of Karst Dynamics, Ministry of Nature Resources/Guangxi, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
| | - Dong Li
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenfang Cao
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China
| | - Cheng Zeng
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China; Puding Karst Ecosystem Research Station, CAS, Chinese Ecosystem Research Network, Puding 562100, China
| | - Yundi Hu
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China; Puding Karst Ecosystem Research Station, CAS, Chinese Ecosystem Research Network, Puding 562100, China
| | - Bo Chen
- Guizhou University of Finance and Economics, Guiyang 550025, China
| | - Qian Bao
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China; Key Laboratory of Land Resources Evaluation and Monitoring in Southwest China of Ministry of Education, Sichuan Normal University, Chengdu 610066, China
| | - Yi Zhang
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100049, China; Resources and Environmental Engineering, Guizhou Institute of Technology, Guiyang 550008, China
| | - Qiufang He
- Chongqing Key Laboratory of Karst Environment, School of Geographical Sciences, Southwest University, Chongqing 400700, China; Key Laboratory of Karst Dynamics, Ministry of Nature Resources/Guangxi, Institute of Karst Geology, Chinese Academy of Geological Sciences, Guilin 541004, China
| | - Chaowei Lai
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China; School of Water Resources and Environment, China University of Geosciences (Beijing), Beijing 100083, China
| | - Xuejun He
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100049, China; Puding Karst Ecosystem Research Station, CAS, Chinese Ecosystem Research Network, Puding 562100, China
| | - Zhen Ma
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China
| | - Yongqiang Han
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China; University of Chinese Academy of Sciences, Beijing 100049, China; Puding Karst Ecosystem Research Station, CAS, Chinese Ecosystem Research Network, Puding 562100, China
| | - Haibo He
- State Key Laboratory of Environmental Geochemistry, CAS, Institute of Geochemistry, Guiyang 550081, China
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Abstract
Osteoarthritis (OA) is a degenerative joint disease characterized by progressive degeneration of articular cartilage. Due to its high prevalence and limited treatment options, OA has become one of the most disabling diseases in developed countries. In recent years, OA has been recognized as a heterogenic disease with various phenotypes. Calcium crystal-related endotypes, which are defined by either a distinct functional or pathobiological mechanism, are present in approximately 60% of all OA patients. Two different calcium crystals can accumulate in the joint and thereby calcify the cartilage matrix, which are basic calcium phosphate (BCP) and calcium pyrophosphate (CPP) crystals. The formation of these crystals depends mainly on the balance of phosphate and pyrophosphate, which is regulated by specific proteins controlling the pyrophosphate metabolism. Dysregulation of these molecules subsequently leads to preferential formation of either BCP or CPP crystals. BCP crystals, on the one hand, are directly associated with OA severity and cartilage degradation. They are mostly located in the deeper cartilage layers and are associated with chondrocyte hypertrophy. CPP crystal deposition, on the other hand, is a hallmark of chondrocalcinosis and is associated with aging and chondrocyte senescence. Therefore, BCP and CPP crystals are associated with different chondrocyte phenotypes. However, BCP and CPP crystals are not mutually exclusive and can coexist in OA, creating a mixed endotype of OA. Both crystals clearly play a role in the pathogenesis of OA. However, the exact impact of each crystal type on either driving the disease progression or being a result of chondrocyte differentiation is still to be elucidated.
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Affiliation(s)
- Sina Stücker
- Department of Orthopaedic Surgery, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany.
| | - Miriam Bollmann
- Department of Orthopaedic Surgery, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany.
| | - Christoph Garbers
- Department of Pathology, Otto-von-Guericke-University Magdeburg, Medical Faculty, Magdeburg, Germany.
| | - Jessica Bertrand
- Department of Orthopaedic Surgery, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany.
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Chen R, Long B, Wang S, Liu Y, Bai J, Huang S, Li H, Chen X. Efficient and Stable Perovskite Solar Cells Using Bathocuproine Bilateral-Modified Perovskite Layers. ACS Appl Mater Interfaces 2021; 13:24747-24755. [PMID: 34019370 DOI: 10.1021/acsami.1c03637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Surface modification engineering is an effective method to improve the crystallinity and passivate the perovskite interface and grain boundary, which can improve the power conversion efficiency (PCE) and stability of perovskite solar cells (PSCs). The typical interface modification method is usually introduced at the interface of the perovskite/hole transport layer (HTL) or perovskite/electron transport layer (ETL) through coordination of the groups in the material with the perovskite. In this work, the n-type semiconductor bathocuproine (BCP) including the pyridine nitrogen bond was modified at the interfaces of perovskite/HTL or perovskite/ETL to improve perovskite crystallinity and interface contact properties. The better crystallinity and superior interface contact properties are obtained using BCP unilateral modification, which obviously increases the PCEs of PSCs. The BCP bilateral modification at both perovskite/ETL and perovskite/HTL interfaces can further improve the crystallinity with fewer defects and superior contact properties, which show the largest Voc (1.14 V) and fill factors (FF 77.1%) compared to PSCs with BCP unilateral modification. PSCs with BCP bilateral modification obtained 20.6% PCEs, which is greatly higher than that (17.5%) of the original PSCs. The stability of PSCs with BCP bilateral modification can be greatly improved due to the better crystal quality and hydrophobic property of the interfaces. The results demonstrated that the n-type BCP material can efficiently modify both perovskite/HTL and perovskite/ETL interfaces beyond its semiconductor type, which can greatly improve the PCEs and stability of PSCs because BCP modification can passivate interfaces, improve interface contact and hydrophobic properties, promote crystallinity of the perovskite layer with fewer defects, and block carrier recombination at both interfaces.
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Affiliation(s)
- Renjie Chen
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Biyu Long
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Song Wang
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Yuning Liu
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Jueyao Bai
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
| | - Sumei Huang
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
- Joint Institute of Advanced Science and Technology, East China Normal University, Shanghai 200062, People's Republic of China
| | - Huili Li
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
- Joint Institute of Advanced Science and Technology, East China Normal University, Shanghai 200062, People's Republic of China
| | - Xiaohong Chen
- Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, P. R. China
- Joint Institute of Advanced Science and Technology, East China Normal University, Shanghai 200062, People's Republic of China
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Girard N, Cauvin ERJ, Gauthier O, Gault S. Biphasic Calcium Phosphate Microparticles Mixed With Autologous Blood: Application for the Reconstruction of a Large Mandibular Bone Defect in a Dog. J Vet Dent 2021; 37:201-209. [PMID: 33601942 DOI: 10.1177/0898756421990909] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Large mandibular bone defects can be difficult to treat in dogs, with a high risk of mal or nonunion due to instability and risk of infection. This case report describes the use of autologous clotted blood mixed with biphasic calcium phosphate microparticles to fill a defect in a nonunion fracture and promote bone regeneration in a dog using a 2-stage surgical approach. This new method was designed and tried in a dog with a chronic, unstable mandibular fracture associated with a large sequestrum. Initial treatment involved debridement of the lesion, then the oral wound and oral vestibule were reconstructed in 2 layers. Four weeks later a second stage surgery allowed placement of a pre-contoured maxillofacial plate to bridge the defect, which was filled with a blood/biphasic calcium phosphate compound implant. Cone-beam computed tomography was used prior to the initial surgery for preoperative planning and 3-D printing of a mandibular template for plate contouring. CT was subsequently used to document the healing process, using a bone density measurement tool to assess bone regeneration. Radiographic evidence suggestive of osseointegration was observed within 6 months with effective filling of the defect and restoration of alveolar ridge continuity. A return to normal and atraumatic occlusion was considered excellent. Cone-beam computed tomography was found useful to document radiographic evidence of osseointegration, bone regrowth and remodeling. This case report is to serve as a proof-of-concept study and should be followed by a prospective evaluation.
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Affiliation(s)
- Nicolas Girard
- 560854Azurvet Veterinary Referal Center, Saint Laurent du Var, France
| | | | - Olivier Gauthier
- Department of Small Animal Surgery and Dentistry, 173572Oniris College of Veterinary Medicine, Nantes, France
| | - Simon Gault
- 560854Azurvet Veterinary Referal Center, Saint Laurent du Var, France
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Girard N, Cauvin ERJ, Gauthier O, Gatel L. The Use of Biphasic Calcium Phosphate Substitute ( BCP) in Mandibular Defects in Dogs: Use of CBCT to Evaluate Bone Healing. J Vet Dent 2021; 37:210-219. [PMID: 33550889 DOI: 10.1177/0898756421989120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study aimed to assess the use of cone beam computed tomography (CBCT) to follow-up bone healing of mandibular bone defects in dogs, filled with a combination of autologous blood and millimetric BCP granules. CBCT was performed ≥4 weeks postoperatively. CBCT gray-scale values were measured from multiplanar reconstructions of the defects and compared to that of normal contralateral mandibular bone and to pure BCP/blood composite time 0 (T0) value. Other parameters, determined by affecting grades according to specific criteria included: bone ridge margin restoration; biomaterial homogeneity; bone-biomaterial interface. Results: 8 dogs with 14 defects were included. Median age was 7.2 years (1-15 years). Follow-up CBCT was performed 1 to 7.5 months postoperatively (mean 3.3 months). Defect CBCT gray-scale values at follow-up were significantly greater than T0 (p < 0.05). Ratios of maximum and minimum densities of the defects to contralateral mandibular bone followed a linear correlation with time (p < 0.05). The bone ridge margin was adequately restored in all the defects and significantly correlated with time (p = 0.03). Biomaterial homogeneity was fair to good in 11 defects and significantly correlated with the bone ridge margin parameter (p = 0.05) and time (p = 0.006). There was no significant correlation with the bone-material interface. The latter was satisfactory in 12 defects and significantly correlated with time (p = 0.01) but not with the other parameters. The biomaterial was more homogeneous in smaller defects and with increasing time. CBCT allowed effective assessment of bone healing via the measurement of CBCT gray-scale values and assessment of multiple radiological variables.
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Affiliation(s)
- Nicolas Girard
- Azurvet Veterinary Referal Center, Saint Laurent du Var, France
| | | | - Olivier Gauthier
- Department of Small Animal Surgery and Dentistry, 173572Oniris College of Veterinary Medicine, Nantes, France
| | - Laure Gatel
- Azurvet Veterinary Referal Center, Saint Laurent du Var, France
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Hong SY, Tran TVT, Kang HJ, Tripathi G, Lee BT, Bae SH. Synthesis and characterization of biphasic calcium phosphate laden thiolated hyaluronic acid hydrogel based scaffold: physical and in-vitro biocompatibility evaluations. J Biomater Sci Polym Ed 2020; 32:337-354. [PMID: 33026287 DOI: 10.1080/09205063.2020.1833816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The present study focused on the combination of biphasic calcium phosphate (BCP) nanoparticles into the modified hyaluronic acid based injectable hydrogels for bone tissue engineering. Self-cross-linked thiolated hyaluronic acid (HA-HS) injectable hydrogels loaded with biphasic calcium phosphate (BCP) nanoparticles were prepared by disulfide cross-linking to mimic the extracellular matrix as a potential material for bone treatment. Varying concentration of HA-HS ranging between 1 and 5w/v% was tested to optimize the optimum concentration and were further modified with varying BCP concentrations for final optimization. Physico-chemical characterizations of the prepared hydrogel such as SEM, EDS, FT-IR, and XRD confirmed that the BCP has effectively loaded and distributed homogeneously in the HA-HS hydrogel. The results showed that the 3% (w/v) HA-HS hydrogel exhibits the appropriate properties for injectable hydrogel system such as gelation times, swelling rate and in vitro degradation behavior among all tested concentrations. Cell viability and cell proliferation using osteoblast cells (MC3T3-E1) demonstrated that the BCP laden modified hydrogel are biocompatible in vitro. In light of the encouraging results obtained, BCP laden HA-HS hydrogels might offer the potential to be used as injectable hydrogel in bone tissue engineering.
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Affiliation(s)
- Suk Young Hong
- Department of Surgery, Soonchunhyang University Cheonan Hospital, Cheonan, South Korea
| | - Tuong Van Thi Tran
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Hoe Jin Kang
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Garima Tripathi
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea.,Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Byong Taek Lee
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, South Korea.,Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan, South Korea
| | - Sang Ho Bae
- Department of Surgery, Soonchunhyang University Cheonan Hospital, Cheonan, South Korea.,Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan, South Korea
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Kang HJ, Makkar P, Padalhin AR, Lee GH, Im SB, Lee BT. Comparative study on biodegradation and biocompatibility of multichannel calcium phosphate based bone substitutes. Mater Sci Eng C Mater Biol Appl 2020; 110:110694. [PMID: 32204008 DOI: 10.1016/j.msec.2020.110694] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 01/13/2020] [Accepted: 01/25/2020] [Indexed: 02/06/2023]
Abstract
The objective of this study was to fabricate multichannel biphasic calcium phosphate (BCP) and β-tricalcium phosphate (TCP) bone substitutes and compare their long-term biodegradation and bone regeneration potentials. Multi-channel BCP and TCP scaffolds were fabricated by multi-pass extrusion process. Both scaffolds were cylindrical with a diameter of 1-mm, a length of 1-mm, and seven interconnected channels. Morphology, chemical composition, phase, porosity, compressive strength, ion release behavior, and in-vitro biocompatibility of both scaffolds were studied. In-vivo biodegradation and bone regeneration efficacies of BCP and TCP were also evaluated using a rabbit model for 1 week, 1 month, and 6 months. BCP exhibited superior compressive strength compared to TCP scaffold. TCP showed higher release of both calcium ions and phosphorous ions than BCP in SBF solution. Both scaffolds showed excellent in-vitro biocompatibility and upregulated the expression of osteogenic markers of MC3T3-E1 cells. In-vivo studies revealed that both cylindrical TCP and BCP scaffolds were osteoconductive and supported new bone formation. Micro-CT data showed that the bone-regeneration efficacy of TCP was higher at one month and at six months after implantation. Histological examination confirmed that TCP degraded faster and had better bone regeneration than BCP after 6 months.
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Levterov VV, Panasyuk Y, Pivnytska VO, Mykhailiuk PK. Water-Soluble Non-Classical Benzene Mimetics. Angew Chem Int Ed Engl 2020; 59:7161-7167. [PMID: 32060990 DOI: 10.1002/anie.202000548] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Revised: 02/13/2020] [Indexed: 12/20/2022]
Abstract
A new generation of saturated benzene mimetics, 2-oxabicyclo[2.1.1]hexanes, was developed. These compounds were designed as analogues of bicyclo[1.1.1]pentane with an improved water solubility. Crystallographic analysis of 2-oxabicyclo[2.1.1]hexanes revealed that they occupy a novel chemical space, but, at the same time, resemble the motif of meta-disubstituted benzenes.
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Affiliation(s)
| | | | | | - Pavel K Mykhailiuk
- Enamine Ltd., Chervonotkatska 78, 02094, Kyiv, Ukraine.,Taras Shevchenko National University of Kyiv, Chemistry Department, Volodymyrska 64, 01601, Kyiv, Ukraine
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Durand T, Vautrin F, Bergeron E, Girard V, Polsinelli S, Monnin V, Durand G, Dauwalder O, Dumitrescu O, Laurent F, Rodríguez-Nava V. Assessment of VITEK® MS IVD database V3.0 for identification of Nocardia spp. using two culture media and comparing direct smear and protein extraction procedures. Eur J Clin Microbiol Infect Dis 2019; 39:559-567. [PMID: 31758438 DOI: 10.1007/s10096-019-03758-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 10/30/2019] [Indexed: 02/06/2023]
Abstract
We assessed the performance of the VITEK® MS IVD V3.0 matrix-assisted laser desorption ionization - time of flight mass spectrometry (MALDI-ToF MS) V3.0 database for the identification of Nocardia spp. as compared with targeted DNA sequencing. A collection of 222 DNA sequence-defined Nocardia spp. strains encompassing 18 different species present or not in the database was tested. Bromocresol purple agar (BCP) and Columbia agar +5% sheep's blood (COS) culture media were used together with two different preparation steps: direct smear and a "3 attempts" procedure that covered (1) spotting of an extract, (2) new spotting of the same extract, and (3) spotting of a new extract. The direct smear protocol yielded low correct identification rates (≤ 15% for both media) whereas protein extraction yielded correct identification results (> 67% regardless of the media used.). The use of 2 additional attempts using repeat or new extracts increased correct identification rates to 87% and 91% for BCP and COS, respectively. When using the 3 attempts procedure, the best identification results, independent of media types, were obtained for N. farcinica and N. cyriacigeorgica (100%). Identification attempts 2 and 3 allowed to increase the number of correct identifications (BCP, +20%; COS, +13%). The enhancement in performance during attempts 2 and 3 was remarkable for N. abscessus (81% for both media) and low prevalence species (BCP, 70%; COS, 85%). Up to 3.4% and 2.4% of the strains belonging to species present in the database were misidentified with BCP and COS media, respectively. In 1.9% of the cases for BCP and 1.4% for COS, these misidentifications concerned a species belonging to the same phylogenetic complex. Concerning strains that are not claimed in the V3.0 database, N. puris and N. goodfellowi generated "No identification" results and 100% of the strains belonging to N. arthritidis, N.cerradoensis, and N. altamirensis yielded a misidentification within the same phylogenetic complex. Vitek® MS IVD V3.0 is an accurate and useful tool for identification of Nocardia spp.
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Affiliation(s)
- T Durand
- Institut des Agents infectieux, Centre de Biologie et Pathologies Nord, Hôpital de la Croix Rousse, Lyon, France
| | - F Vautrin
- UMR CNRS 5557, Ecologie Microbienne - Groupe de Recherche "Pathogènes Opportunistes et Environnement" - ISPB-Faculté de Pharmacie, Université Lyon 1, Lyon, France
| | - E Bergeron
- UMR CNRS 5557, Ecologie Microbienne - Groupe de Recherche "Pathogènes Opportunistes et Environnement" - ISPB-Faculté de Pharmacie, Université Lyon 1, Lyon, France
| | - V Girard
- bioMérieux France, Microbiology R&D, La Balme-les-Grottes, France
| | - S Polsinelli
- bioMérieux France, Microbiology R&D, La Balme-les-Grottes, France
| | - V Monnin
- bioMérieux France, Microbiology R&D, La Balme-les-Grottes, France
| | - G Durand
- bioMérieux France, Microbiology R&D, La Balme-les-Grottes, France
| | - O Dauwalder
- Institut des Agents infectieux, Centre de Biologie et Pathologies Nord, Hôpital de la Croix Rousse, Lyon, France
| | - O Dumitrescu
- Institut des Agents infectieux, Centre de Biologie et Pathologies Nord, Hôpital de la Croix Rousse, Lyon, France
| | - F Laurent
- Institut des Agents infectieux, Centre de Biologie et Pathologies Nord, Hôpital de la Croix Rousse, Lyon, France
| | - V Rodríguez-Nava
- Institut des Agents infectieux, Centre de Biologie et Pathologies Nord, Hôpital de la Croix Rousse, Lyon, France. .,UMR CNRS 5557, Ecologie Microbienne - Groupe de Recherche "Pathogènes Opportunistes et Environnement" - ISPB-Faculté de Pharmacie, Université Lyon 1, Lyon, France.
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Shi M, Yang R, Li Q, Lv K, Miron RJ, Sun J, Li M, Zhang Y. Inorganic Self-Assembled Bioactive Artificial Proto-Osteocells Inducing Bone Regeneration. ACS Appl Mater Interfaces 2018; 10:10718-10728. [PMID: 29528210 DOI: 10.1021/acsami.8b00385] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Since the discovery of osteoinduction in the early 20th century, innovative biomaterials with osteoinductive potential have emerged as candidates for bone repair. Recently, artificial protocell models have demonstrated great potential for tissue regeneration. Herein, we developed artificial bioactive proto-osteocells by self-assembly of biodegradable biphasic-phosphate particles in the form of aqueous bone morphogenetic protein 2 (BMP2)-containing Pickering emulsions in corn oil to fulfill the release of BMP2 with controlled and local efficacy. These artificial proto-osteocells have the advantage of (1) being directly injected into the target location to avert reported side effects of BMP2, minimizing surgical complications, (2) exhibiting the capability of osteoinduction as shown in both in vitro and in vivo models, and (3) demonstrating calcific deposition locally by utilizing the biodegradable calcium phosphate shell. The efficiency of BMP2 within the artificial proto-osteocells showed 25 times greater bone-inducing potential when compared to the control. This study demonstrates for the first time a new strategy toward utilizing material-based artificial proto-osteocells to tackle medical issues in bone tissue repair and regeneration.
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Affiliation(s)
- Miusi Shi
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology , Wuhan University , Wuhan 430079 , P. R. China
| | - Ruiwen Yang
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, College of Chemistry and Materials Sciences, College of Resources and Environmental Science , South-Central University for Nationalities , Wuhan 430074 , P. R. China
| | - Qin Li
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, College of Chemistry and Materials Sciences, College of Resources and Environmental Science , South-Central University for Nationalities , Wuhan 430074 , P. R. China
| | - Kangle Lv
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, College of Chemistry and Materials Sciences, College of Resources and Environmental Science , South-Central University for Nationalities , Wuhan 430074 , P. R. China
| | - Richard J Miron
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology , Wuhan University , Wuhan 430079 , P. R. China
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, College of Chemistry and Materials Sciences, College of Resources and Environmental Science , South-Central University for Nationalities , Wuhan 430074 , P. R. China
| | - Jie Sun
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, College of Chemistry and Materials Sciences, College of Resources and Environmental Science , South-Central University for Nationalities , Wuhan 430074 , P. R. China
| | - Mei Li
- Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, College of Chemistry and Materials Sciences, College of Resources and Environmental Science , South-Central University for Nationalities , Wuhan 430074 , P. R. China
| | - Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology , Wuhan University , Wuhan 430079 , P. R. China
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Abstract
PURPOSE OF REVIEW Osteoarthritis (OA) is the most common form of joint disease globally and is associated with significant morbidity and disability. Increasing evidence points to an important inflammatory component in the development and progression of OA. The precise pathways involved in OA inflammatory processes remain to be clarified. Basic calcium phosphate (BCP) and calcium pyrophosphate dihydrate (CPP) crystals can induce inflammation and arthritis and recent studies point to a potential pathogenic role in OA. In the light of this evidence, we explore the relationship and potential mechanistic pathways linking calcium-containing crystals and OA. RECENT FINDINGS CPP crystals induce inflammation through the NLRP3 inflammasome while BCP crystals mediate both NLRP3 dependent and independent effects. BCP crystals have been demonstrated to induce key mitogenic and inflammatory pathways and contribute to cartilage degradation. Calcium-containing crystals induce key inflammatory pathways and may represent an attractive novel target in OA, a condition devoid of effective treatments.
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Affiliation(s)
- Richard Conway
- Department of Rheumatology, St. James's Hospital, James Street, Dublin 8, Ireland.
| | - Geraldine M McCarthy
- Department of Rheumatology, Mater Misericordiae University Hospital, Dublin Academic Medical Centre, Eccles St., Dublin 7, Ireland
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25
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Kim B, Ventura R, Lee BT. Functionalization of porous BCP scaffold by generating cell-derived extracellular matrix from rat bone marrow stem cells culture for bone tissue engineering. J Tissue Eng Regen Med 2017; 12:e1256-e1267. [PMID: 28752541 DOI: 10.1002/term.2529] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 05/24/2017] [Accepted: 07/24/2017] [Indexed: 12/24/2022]
Abstract
The potential of decellularized cell-derived extracellular matrix (ECM) deposited on biphasic calcium phosphate (BCP) scaffold for bone tissue engineering was investigated. Rat derived bone marrow mesenchymal stem cells were cultured on porous BCP scaffolds for 3 weeks and decellularized with two different methods (freeze-thaw [F/T] or sodium dodecyl sulfate [SDS]). The decellularized ECM deposited scaffolds (dECM-BCP) were characterized through scanning electron microscopy, energy dispersive X-ray spectrometer, and confocal microscopy. The efficiency of decellularization was evaluated by quantifying remaining DNA, sulfated glycosaminoglycans, and collagens. Results revealed that F/T method was more effective procedure for removing cellular components of cultured cells (95.21% DNA reduction) than SDS treatment (92.49%). Although significant loss of collagen was observed after decellularization with both F/T (56.68%) and SDS (70.87%) methods, F/T treated sample showed higher retaining amount of sulfated glycosaminoglycans content (75.64%) than SDS (33.28%). In addition, we investigated the cell biocompatibility and osteogenic effect of dECM-BCP scaffolds using preosteoblasts (MC3T3-E1). Compared to bare BCP scaffolds, dECM-BCP_F/T scaffolds showed improved cell attachment and proliferation based on immunofluorescence staining and water soluble tetrazolium salts assay (p < .001). Moreover, dECM-BCP scaffolds showed increased osteoblastic differentiation of newly seeded preosteoblasts by up-regulating three types of osteoblastic genes (osteopontin, alkaline phosphatase, and bone morphogenic protein-2). This study demonstrated that functionalization of BCP scaffold using cell-derived ECM could be useful for improving the bioactivity of materials and providing suitable microenvironment, especially for osteogenesis. Further study is needed to determine the potential of dECM-BCP scaffold for bone formation and regeneration in vivo.
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Affiliation(s)
- Boram Kim
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Reiza Ventura
- Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, Korea
| | - Byong-Taek Lee
- Institute of Tissue Regeneration, College of Medicine, Soonchunhyang University, Cheonan, Korea.,Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, Korea
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26
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Fujioka-Kobayashi M, Schaller B, Zhang Y, Pippenger BE, Miron RJ. In vitro evaluation of an injectable biphasic calcium phosphate ( BCP) carrier system combined with recombinant human bone morphogenetic protein (rhBMP)-9. Biomed Mater Eng 2017; 28:293-304. [PMID: 28527192 DOI: 10.3233/bme-171675] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Bone morphogenetic protein 9 (BMP9) has previously been characterized as the strongest osteoinductive growth factor among the BMP family. The aim of the present study was to evaluate the possibility of combining rhBMP9 with an injectable biphasic calcium phosphate (I-BCP, maxresorb inject®), since I-BCP is an easy to handle biomaterial with ideal properties for bone augmentation procedures. The adsorption potential of rhBMP9 as well as the cell behavior of bone stromal ST2 cells were investigated on cell viability, adhesion, proliferation and osteogenic differentiation for I-BCP combined with/without rhBMP9 in vitro. I-BCP demonstrated excellent adsorption/retention potential of rhBMP9 with a slow and steady release over a 10 day period by ELISA. Cell attachment at 8 hours and cell proliferation at 1, 3 and 5 days was decreased on I-BCP with/without rhBMP9 when compared to control tissue-culture plastic. While I-BCP had little influence on osteoblast differentiation, its combination with rhBMP9 significantly increased ALP activity at 7 days and mRNA levels of osteoblast differentiation markers including ALP and osteocalcin at 14 days. I-BCP served as an excellent carrier for rhBMP9 clearly demonstrating its osteoinductive potential. We therefore confirm the great potential of rhBMP9 to serve as a future regenerative growth factor for bone applications.
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Affiliation(s)
- Masako Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.,Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Benoit Schaller
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Yufeng Zhang
- Department of Oral Implantology, University of Wuhan, Wuhan, China
| | | | - Richard J Miron
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, FL, USA
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27
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Kiraly AJ, Roberts A, Cox M, Mauerhan D, Hanley E, Sun Y. Comparison of Meniscal Cell-Mediated and Chondrocyte-Mediated Calcification. Open Orthop J 2017; 11:225-233. [PMID: 28567149 PMCID: PMC5420175 DOI: 10.2174/1874325001711010225] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 02/16/2017] [Accepted: 02/27/2017] [Indexed: 12/15/2022] Open
Abstract
Background: Chondrocytes have been traditionally thought to be responsible for calcium crystal deposits within osteoarthritic knees. Increasing recent experimental evidence suggests that menisci may also play a role. However, the calcifying potential of chondrocytes and meniscal cells derived from same OA patients, and the genes associated with meniscal calcification have never been fully examined. Objective: Examine and compare the calcifying potential of articular chondrocytes and meniscal cells derived from same OA patients and identify the calcium crystal type(s) and selected gene expression in OA menisci. Methods: Chondrocytes and meniscal cells were isolated from articular cartilage and menisci of OA patients undergoing total knee arthroplasty. Chondrocyte- and meniscal cell-mediated calcification was examined using both monolayer and micromass culture-based assays. Crustal types were examined with histological staining. Levels of Type X Collagen, MMP-13, and ANKH in OA menisci were examined using immunohistochemistry. Results: Primary human OA meniscal cells produced calcified deposits at a similar rate compared to OA chondrocytes in-vitro. Histological examinations indicate that both BCP crystals and CPPD crystals are present in the meniscal tissue. Type X collagen, MMP-13, and ANKH were found in human OA menisci and their levels increased with OA severity. In addition, type X collagen was co-localized with calcium crystals. Conclusion: These findings suggest that OA meniscal cells have a similar calcifying potential as OA chondrocytes, supporting a pathogenic role of OA menisci in OA.
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Affiliation(s)
- Alex J Kiraly
- Department of Orthopaedic Surgery, Carolinas HealthCare System, Charlotte, NC, USA
| | - Andrea Roberts
- Department of Orthopaedic Surgery, Carolinas HealthCare System, Charlotte, NC, USA
| | - Michael Cox
- Department of Orthopaedic Surgery, Carolinas HealthCare System, Charlotte, NC, USA
| | - David Mauerhan
- Department of Orthopaedic Surgery, Carolinas HealthCare System, Charlotte, NC, USA
| | - Edward Hanley
- Department of Orthopaedic Surgery, Carolinas HealthCare System, Charlotte, NC, USA
| | - Yubo Sun
- Department of Orthopaedic Surgery, Carolinas HealthCare System, Charlotte, NC, USA
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28
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Goh YL, Cui YT, Pendharkar V, Adsool VA. Toward Resolving the Resveratrol Conundrum: Synthesis and in Vivo Pharmacokinetic Evaluation of BCP-Resveratrol. ACS Med Chem Lett 2017; 8:516-520. [PMID: 28523103 DOI: 10.1021/acsmedchemlett.7b00018] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 04/24/2017] [Indexed: 01/06/2023] Open
Abstract
Over the last few decades, resveratrol has gained significance due to its impressive array of biological activities; however, its true potential as a drug has been severely constrained by its poor bioavailability. Indeed, several studies have implicated this bioavailability trait as a major road-block to resveratrol's potential clinical applications. To mitigate this pharmacokinetic issue, we envisioned a tactical bioisosteric modification of resveratrol to bicyclo[1.1.1]pentane (BCP) resveratrol. Relying on the beneficial bioisosteric potential demonstrated by the BCP-scaffold, we hypothesized that BCP-resveratrol would have an inherently better in vivo PK profile as compared to its natural counterpart. To validate such a hypothesis, it was necessary to secure a synthetic access to this novel structure. Herein we describe the first synthesis of BCP-resveratrol and disclose its PK properties.
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Affiliation(s)
- Yi Ling Goh
- Institute
of Chemical and Engineering Sciences (ICES), Agency for Science Technology and Research (A*STAR), 8 Biomedical Grove, Neuros, #07-01, Singapore 138665, Singapore
| | - Yan Ting Cui
- Institute
of Chemical and Engineering Sciences (ICES), Agency for Science Technology and Research (A*STAR), 8 Biomedical Grove, Neuros, #07-01, Singapore 138665, Singapore
| | - Vishal Pendharkar
- Experimental
Therapeutic Center (ETC), Agency for Science Technology and Research (A*STAR), 31 Biopolis way, Nanos, #03-01, Singapore 138669, Singapore
| | - Vikrant A. Adsool
- Institute
of Chemical and Engineering Sciences (ICES), Agency for Science Technology and Research (A*STAR), 8 Biomedical Grove, Neuros, #07-01, Singapore 138665, Singapore
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29
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Hwang KS, Choi JW, Kim JH, Chung HY, Jin S, Shim JH, Yun WS, Jeong CM, Huh JB. Comparative Efficacies of Collagen-Based 3D Printed PCL/PLGA/β-TCP Composite Block Bone Grafts and Biphasic Calcium Phosphate Bone Substitute for Bone Regeneration. Materials (Basel) 2017; 10:ma10040421. [PMID: 28772780 PMCID: PMC5506921 DOI: 10.3390/ma10040421] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 04/04/2017] [Accepted: 04/14/2017] [Indexed: 11/16/2022]
Abstract
The purpose of this study was to compare bone regeneration and space maintaining ability of three-dimensional (3D) printed bone grafts with conventional biphasic calcium phosphate (BCP). After mixing polycaprolactone (PCL), poly (lactic-co-glycolic acid) (PLGA), and β-tricalcium phosphate (β-TCP) in a 4:4:2 ratio, PCL/PLGA/β-TCP particulate bone grafts were fabricated using 3D printing technology. Fabricated particulate bone grafts were mixed with atelocollagen to produce collagen-based PCL/PLGA/β-TCP composite block bone grafts. After formation of calvarial defects 8 mm in diameter, PCL/PLGA/β-TCP composite block bone grafts and BCP were implanted into bone defects of 32 rats. Although PCL/PLGA/β-TCP composite block bone grafts were not superior in bone regeneration ability compared to BCP, the results showed relatively similar performance. Furthermore, PCL/PLGA/β-TCP composite block bone grafts showed better ability to maintain bone defects and to support barrier membranes than BCP. Therefore, within the limitations of this study, PCL/PLGA/β-TCP composite block bone grafts could be considered as an alternative to synthetic bone grafts available for clinical use.
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Affiliation(s)
- Kyoung-Sub Hwang
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Jae-Won Choi
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Jae-Hun Kim
- Department of Mechanical System Engineering, Graduate School of Knowledge-Based Technology and Energy, Korea Polytechnic University, 237 Sangidaehak-Ro, Siheung-Si, Gyeonggi-Do 15073, Korea.
| | - Ho Yun Chung
- Department of Plastic and Reconstructive Surgery, Kyungpook National University, School of Medicine, 130 Dongdeok-ro, Jung-gu, Daegu 41944, Korea.
| | - Songwan Jin
- Department of Mechanical Engineering, Korea Polytechnic University, 237 Sangidaehak-Ro, Siheung-Si, Gyeonggi-Do 15073, Korea.
| | - Jin-Hyung Shim
- Department of Mechanical Engineering, Korea Polytechnic University, 237 Sangidaehak-Ro, Siheung-Si, Gyeonggi-Do 15073, Korea.
| | - Won-Soo Yun
- Department of Mechanical Engineering, Korea Polytechnic University, 237 Sangidaehak-Ro, Siheung-Si, Gyeonggi-Do 15073, Korea.
| | - Chang-Mo Jeong
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
| | - Jung-Bo Huh
- Department of Prosthodontics, Dental Research Institute, Institute of Translational Dental Sciences, BK21 PLUS Project, School of Dentistry, Pusan National University, Yangsan 50612, Korea.
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30
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Bouler J, Pilet P, Gauthier O, Verron E. Biphasic calcium phosphate ceramics for bone reconstruction: A review of biological response. Acta Biomater 2017; 53:1-12. [PMID: 28159720 DOI: 10.1016/j.actbio.2017.01.076] [Citation(s) in RCA: 224] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 01/04/2017] [Accepted: 01/27/2017] [Indexed: 12/23/2022]
Abstract
Autologous bone graft is considered as the gold standard in bone reconstructive surgery. However, the quantity of bone available is limited and the harvesting procedure requires a second surgical site resulting in severe complications. Due to these limits, scientists and clinicians have considered alternatives to autologous bone graft. Calcium phosphates (CaPs) biomaterials including biphasic calcium phosphate (BCP) ceramics have proven efficacy in numerous clinical indications. Their specific physico-chemical properties (HA/TCP ratio, dual porosity and subsequent interconnected architecture) control (regulate/condition) the progressive resorption and the bone substitution process. By describing the most significant biological responses reported in the last 30years, we review the main events that made their clinical success. We also discuss about their exciting future applications as osteoconductive scaffold for delivering various bioactive molecules or bone cells in bone tissue engineering and regenerative medicine. STATEMENT OF SIGNIFICANCE Nowadays, BCPs are definitely considered as the gold standard of bone substitutes in bone reconstructive surgery. Among the numerous clinical studies in literature demonstrating the performance of BCP, Passuti et al. and Randsford et al. studies largely contributed to the emergence of the BCPs. It could be interesting to come back to the main events that made their success and could explain their large adhesion from scientists to clinicians. This paper aims to review the most significant biological responses reported in the last 30years, of these BCP-based materials. We also discuss about their exciting future applications as osteoconductive scaffold for delivering various bioactive molecules or bone cells in bone tissue engineering and regenerative medicine.
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31
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Ren F, Jiao H, Cai H. Analgesic Effect of Intrathecal Administration of Chemokine Receptor CCR2 Antagonist is Related to Change in Spinal NR2B, nNOS, and SIGIRR Expression in Rat with Bone Cancer Pain. Cell Biochem Biophys 2017; 72:611-6. [PMID: 25653100 DOI: 10.1007/s12013-014-0510-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The purpose of this study is to investigate the analgesic effect of intrathecal injection of chemokine receptor CCR2 antagonist RS102895, and its effect on spinal expression of N-methyl-D-aspartate (NMDA) receptor NR2B subunit, neuronal nitric oxide synthase (nNOS), and SIGIRR in a rat model of bone cancer pain (BCP). A rat model of BCP was established by intro-tibial inoculation of W256 breast cancer cells. Female SD rats were randomly divided into five groups (n = 10 each): Sham group, Sham + RS102895 group, BCP group, BCP + RS102895 group, and BCP + DMSO group. Rats received intrathecal injections of either RS102895 (3 g/l) 10 μl or 10 % DMSO 10 μl on day 9 to day 20 after operation. Pain thresholds of mechanical stimulation and thermal stimulation of each group were measured one day before and at 3rd, 6th, 9th, 12th, 15th, and 20th days after surgery. Spinal expression of NR2B, nNOS, and SIGIRR was detected by RT-PCR and Western blot. CCR2 antagonist RS102895 can suppress the pain induced by both mechanical and thermal stimulation in rats with BCP. Spinal expression of CCR2, NR2B, and nNOS was significantly up-regulated, while SIGIRR was down-regulated in BCP rats, and intrathecal injection of RS102895 effectively reversed the pattern of NR2B, nNOS, and SIGIRR expression in spinal cord. Analgesic effects of CCR2 antagonist RS102895 in BCP rats may be related to its downregulation of signal transduction pathway of NMDAR/nNOS and upregulation of Toll-interleukin-1 receptor member SIGIRR.
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Affiliation(s)
- Fei Ren
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan, People's Republic of China
| | - Hena Jiao
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan, People's Republic of China
| | - Hongwei Cai
- Department of Anesthesiology, Xiangya Hospital of Central South University, Changsha, 410008, Hunan, People's Republic of China.
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Valdivia-Gandur I, Engelke W, Beltrán V, Borie E, Fuentes R, Manzanares-Céspedes MC. Novel use of cranial epidural space in rabbits as an animal model to investigate bone volume augmentation potential of different bone graft substitutes. Head Face Med 2016; 12:35. [PMID: 27906068 PMCID: PMC5134093 DOI: 10.1186/s13005-016-0131-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 11/22/2016] [Indexed: 01/03/2023] Open
Abstract
Background The success of bone augmentation to a major degree depends on the biomechanics and biological conditions of the surrounding tissues. Therefore, an animal model is needed providing anatomical sites with similar mechanical pressures for comparing its influence on different biomaterials for bone regeneration. The present report describes the new bone formation associated to biomaterial in a bursa created in the epidural space, between dura mater and cranial calvaria, under the constant pressure of cerebrospinal fluid. Methods Five adult California rabbits were used for the trial. In each animal, two bursae were created in the epidural spaces, in the anterior part of the skull, below both sides of the interfrontal suture. The spaces between dura mater and cranial calvaria were filled with in-situ hardening biphasic calcium phosphate containing hydroxyapatite and beta tricalcium-phosphate (BCP), in-situ hardening phase-pure beta-tricalcium phosphate (β-TCP) or without any biomaterials (sham). After 90 days, the animals were sacrificed, and the defect sites were extracted and processed for histomorphometric analysis by optical and backscattered electron microscopy. Results The cranial epidural spaces created (n = 10) could be preserved by the application both BCP (n = 3) and β-TCP biomaterials (n = 3) in all experimental sites. The sites augmented with BCP showed less new bone formation but a trend to better volume preservation than the sites augmented with β-TCP. However, the bone in the BCP sites seemed to be more mature as indicated by the higher percentage of lamellar bone in the sites. In contrast, the created space could not be preserved, and new bone formation was scarce in the sham-operated sites (n = 4). Conclusion The experimental bursae created bilaterally in the epidural space allows comparing objectively bone formation in relation to biomaterials for bone regeneration under permanent physiological forces from cerebrospinal fluid pressure.
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Affiliation(s)
- Ivan Valdivia-Gandur
- Biomedical Department, Universidad de Antofagasta, Antofagasta, Chile.,Odontology Department, Universidad de Antofagasta, Antofagasta, Chile
| | - Wilfried Engelke
- Department of Oral and Maxillofacial Surgery, Georg-August-Universität, Göttingen, Germany
| | - Víctor Beltrán
- Department of Oral and Maxillofacial Surgery, Georg-August-Universität, Göttingen, Germany. .,Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile. .,Clinical Investigation and Dental Innovation Center (CIDIC), Dental School, Universidad de La Frontera, Av. Francisco Salazar 01145, Temuco, Chile.
| | - Eduardo Borie
- Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile
| | - Ramón Fuentes
- Faculty of Dentistry, Universidad de La Frontera, Temuco, Chile
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Fujioka-Kobayashi M, Schaller B, Zhang Y, Kandalam U, Hernandez M, Miron RJ. Recombinant human bone morphogenetic protein (rhBMP)9 induces osteoblast differentiation when combined with demineralized freeze-dried bone allografts (DFDBAs) or biphasic calcium phosphate ( BCP). Clin Oral Investig 2016; 21:1883-1893. [PMID: 27771827 DOI: 10.1007/s00784-016-1983-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 10/13/2016] [Indexed: 11/25/2022]
Abstract
OBJECTIVES Recently, recombinant human bone morphogenetic protein 9 (rhBMP9) has been characterized as one of the most osteogenic growth factors among the 15 human BMPs. The aim of the present study was to investigate the effects of rhBMP9 in comparison to the clinically utilized rhBMP2 on in vitro cell behavior when combined with two bone graft materials including demineralized freeze-dried bone allografts (DFDBAs) and biphasic calcium phosphate (BCP). MATERIALS AND METHODS The absorption and release kinetics of rhBMPs from DFDBA and BCP were investigated by ELISA. Moreover, murine bone stromal ST2 cell behavior was investigated on DFDBA or BCP seeded on (1) graft only, (2) rhBMP2 (10 ng/ml), (3) rhBMP2 (100 ng/ml), (4) rhBMP9 (10 ng/ml), and (5) rhBMP9 (100 ng/ml). The effects of rhBMPs on DFDBA and BCP were assessed for cell adhesion, proliferation, and osteoblast differentiation by alkaline phosphatase (ALP) activity, alizarin red staining, and real-time PCR for genes encoding Runx2, ALP, and bone sialoprotein (BSP). RESULTS While both BMPs were gradually released from DFDBA and BCP over time, significantly higher adsorption was observed on BCP when compared to DFDBA. Cell attachment and proliferation was higher on BCP with little influence of either rhBMP2/9. Despite rhBMPs having relatively no effect on cell attachment/proliferation, a pronounced and marked effect was observed on osteoblast differentiation for both rhBMP2/9. Interestingly, it was observed that rhBMP9 induced significantly higher ALP activity, alizarin red staining, and messenger RNA (mRNA) levels of ALP and BSP when compared to rhBMP2. Our results also revealed higher differentiation for rhBMP2/9 with BCP when compared to DFDBA most likely as a result of higher growth factor adsorption. CONCLUSION While both rhBMP2/9 combined with DFDBA or BCP induced osteoblast differentiation, rhBMP9 induced greater osteoblast differentiation when compared to rhBMP2. CLINICAL RELEVANCE rhBMP9 may be a recombinant growth factor with higher potential to induce new bone formation when compared to rhBMP2. Further in vivo studies are necessary to characterize its regenerative potential in various animal models.
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Affiliation(s)
- Masako Fujioka-Kobayashi
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
- Department of Cranio-Maxillofacial Surgery, Bern University Hospital, Inselspital, Bern, Switzerland
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Benoit Schaller
- Department of Cranio-Maxillofacial Surgery, Bern University Hospital, Inselspital, Bern, Switzerland
| | - Yufeng Zhang
- Department of Oral Implantology, University of Wuhan, Wuhan, China
| | - Umadevi Kandalam
- Department of Pediatric Dentistry, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Maria Hernandez
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Richard J Miron
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, USA.
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Shuang Y, Yizhen L, Zhang Y, Fujioka-Kobayashi M, Sculean A, Miron RJ. In vitro characterization of an osteoinductive biphasic calcium phosphate in combination with recombinant BMP2. BMC Oral Health 2016; 17:35. [PMID: 27485617 PMCID: PMC4971713 DOI: 10.1186/s12903-016-0263-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 07/29/2016] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The repair of alveolar bone defects with growth factors and bone grafting materials has played a pivotal role in modern dentistry. Recombinant human bone morphogenetic protein-2 (rhBMP2), an osteoinductive growth factor capable of cell recruitment and differentiation towards the osteoblast lineage, has been utilized in combination with various biomaterials to further enhance new bone formation. Recently, a group of novel biphasic calcium phosphate (BCP) bone grafting materials have been demonstrated to possess osteoinductive properties by demonstrating signs of ectopic bone formation. The aim of the present study was to study the effects of rhBMP2 in combination with osteoinductive BCP bone grafts on osteoblast cell behaviour. METHODS MC3T3-E1 pre-osteoblasts were seeded on 1) control tissue culture plastic, 2) 10 mg of BCP alone, 3) 100 ng rhBMP2, and 4) 100 ng rhBMP2+ 10 mg of BCP and analyzed for cell recruitment via a Transwell chamber, proliferation via an MTS assay and differentiation as assessed by alkaline phosphatase (ALP) activity, alizarin red staining and real-time PCR for osteoblast differentiation markers including Runx2, collagen1, ALP, and osteocalcin (OCN). RESULTS rhBMP2 was able to significantly upregulate cell recruitment whereas the addition of BCP as well as BCP alone had no additional ability to improve osteoblast recruitment. Both BCP and rhBMP2 were able to significantly increase cell proliferation at 3 and 5 days post seeding and cell number was further enhanced when rhBMP2 was combined with BCP. In addition, the combination of rhBMP2 with BCP significantly improved ALP activity at 7 and 14 days post seeding, alizarin red staining at 14 days, and mRNA levels of Runx2, ALP and osteocalcin when compared to cells seeded with rhBMP2 alone or BCP alone. CONCLUSIONS The results from the present study demonstrate that 1) the osteoinductive potential of BCP bone particles is equally as osteopromotive as rhBMP2 on in vitro osteoblast differentiation and 2) BCP particles in combination with rhBMP2 is able to further increase the osteopromotive differentiation of osteoblasts in vitro when compared to either rhBMP2 alone or BCP alone. Future animal testing is further required to investigate this combination approach on new bone formation.
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Affiliation(s)
- Yang Shuang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China
| | - Lin Yizhen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China
| | - Yufeng Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, 430079, People's Republic of China.
- Department of Oral Implantology, School of Stomatology, Wuhan University, Wuhan, 430079, People's Republic of China.
| | - Masako Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, Bern University Hospital, Inselspital, Bern, 3010, Switzerland
- Department of Oral Surgery, Institute of Biomedical Sciences, Tokushima University, 3-18-15 Tokushima, Tokushima, Japan
| | - Anton Sculean
- Department of Periodontology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, Bern, 3010, Switzerland
| | - Richard J Miron
- Department of Periodontology, School of Dental Medicine, University of Bern, Freiburgstrasse 7, Bern, 3010, Switzerland.
- Department of Periodontology, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, FL, 33328, USA.
- Department of Oral Surgery and Stomatology, University of Bern, Bern, Switzerland.
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Helmersson-Karlqvist J, Flodin M, Havelka AM, Xu XY, Larsson A. The Roche Immunoturbidimetric Albumin Method on Cobas c 501 Gives Higher Values Than the Abbott and Roche BCP Methods When Analyzing Patient Plasma Samples. J Clin Lab Anal 2016; 30:677-81. [PMID: 27169354 DOI: 10.1002/jcla.21921] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 12/09/2015] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Serum/plasma albumin is an important and widely used laboratory marker and it is important that we measure albumin correctly without bias. We had indications that the immunoturbidimetric method on Cobas c 501 and the bromocresol purple (BCP) method on Architect 16000 differed, so we decided to study these methods more closely. METHOD A total of 1,951 patient requests with albumin measured with both the Architect BCP and Cobas immunoturbidimetric methods were extracted from the laboratory system. A comparison with fresh plasma samples was also performed that included immunoturbidimetric and BCP methods on Cobas c 501 and analysis of the international protein calibrator ERM-DA470k/IFCC. RESULTS The median difference between the Abbott BCP and Roche immunoturbidimetric methods was 3.3 g/l and the Roche method overestimated ERM-DA470k/IFCC by 2.2 g/l. The Roche immunoturbidimetric method gave higher values than the Roche BCP method: y = 1.111x - 0.739, R² = 0.971. CONCLUSION The Roche immunoturbidimetric albumin method gives clearly higher values than the Abbott and Roche BCP methods when analyzing fresh patient samples. The differences between the two methods were similar at normal and low albumin levels.
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Affiliation(s)
| | - Mats Flodin
- Department of Medical Sciences, Clinical Chemistry, University Hospital, Uppsala, Sweden
| | | | - Xiao Yan Xu
- Department of Medical Sciences, Clinical Chemistry, University Hospital, Uppsala, Sweden
| | - Anders Larsson
- Department of Medical Sciences, Clinical Chemistry, University Hospital, Uppsala, Sweden.
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Zhang M, Wang H, Zhang J, Zhang H, Yang H, Wan X, Jing L, Lu L, Liu X, Yu S, Chang W, Wang M. Unilateral anterior crossbite induces aberrant mineral deposition in degenerative temporomandibular cartilage in rats. Osteoarthritis Cartilage 2016; 24:921-31. [PMID: 26746151 PMCID: PMC5699887 DOI: 10.1016/j.joca.2015.12.009] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 12/04/2015] [Accepted: 12/20/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To investigate whether mechanical stress induces mineral deposits that contribute to matrix degradation at the onset of osteoarthritis (OA) in temporomandibular joint (TMJ) cartilage. DESIGN Female Spraguee-Dawley rats were subjected to an unilateral anterior crossbite (UAC) procedure. Histology, electron microscopy, and energy dispersive spectrometer (EDS) were used to examine cartilage matrix structures and composition of mineral deposit in the affected TMJ cartilage. Protein and/or RNA expression of phenotypic markers and mineralization modulators and matrix degradation was analyzed by immunohistochemistry and/or real-time PCR. Synthetic basic calcium phosphate (BCP) and calcium pyrophosphate dehydrate (CPPD) crystals were used to stimulate ATDC5 cells for their impact on cell differentiation and gene expression. RESULTS Fragmented and disorganized collagen fibers, expanded fibrous spaces, and enhancement of matrix vesicle production and mineral deposition were observed in matrices surrounding hypertrophic chondrocytes in cartilage as early as 2-weeks post-UAC and exacerbated with time. The mineral deposits in TMJ cartilage at 12- and 20-weeks post-UAC had Ca/P ratios of 1.42 and 1.44, which are similar to the ratios for BCP. The expression of mineralization inhibitors, NPP1, ANK, CD73, and Matrix gla protein (MGP) was decreased from 2 to 8 weeks post-UAC, so were the chondrogenic markers, Col-2, Col-X and aggrecan. In contrast, the expression of tissue-nonspecific alkaline phosphatase (TNAP) and MMP13 was increased 4-weeks post-UAC. Treating ADTC5 cells with BCP crystals increased MMPs and ADAMTS5 expression, but reduced matrix production in a time-dependent manner. CONCLUSION UAC induces deposition of BCP-like minerals in osteoarthritic cartilage, which can stimulate matrix degradation by promoting the expression of cartilage-degrading enzymes to facilitate OA progression.
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Affiliation(s)
- M. Zhang
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - H. Wang
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - J. Zhang
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - H. Zhang
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - H. Yang
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - X. Wan
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - L. Jing
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - L. Lu
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - X. Liu
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - S. Yu
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, China
| | - W. Chang
- Endocrine Research Unit, University of California, San Francisco, Veterans Affairs Medical Center, San Francisco, USA,Department of Medicine, University of California San Francisco, USA
| | - M. Wang
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, China,Address correspondence and reprint requests to: M. Wang, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, Xi'an, 710032, China. (M. Wang)
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Zhang Y, Yang S, Zhou W, Fu H, Qian L, Miron RJ. Addition of a Synthetically Fabricated Osteoinductive Biphasic Calcium Phosphate Bone Graft to BMP2 Improves New Bone Formation. Clin Implant Dent Relat Res 2015; 18:1238-1247. [PMID: 26510170 DOI: 10.1111/cid.12384] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Bone morphogenetic protein-2 (BMP2) has been successfully utilized in dentistry to promote new bone formation because of its osteoinductive ability to recruit mesenchymal progenitor cells and induce their differentiation to bone-forming osteoblasts. Recently, novel biphasic calcium phosphate scaffolds have been developed with similar osteoinductive properties capable of forming ectopic bone formation. PURPOSE The aim of the present study was to assess whether the combination of BMP2 with this novel Biphasic Calcium Phosphate (BCP) scaffold may additionally promote new bone regeneration. MATERIALS AND METHODS Cylindrical bone defects measuring 2.5 mm were created bilaterally in the femurs of 18 Wistar rats. After 4 weeks, the following six groups were assessed for new bone formation by micro-computed tomography (CT) as well as histological assessment: 1) collagen scaffolds + 20 μg of BMP2; 2) collagen scaffolds + 50 μg of BMP2; 3) collagen scaffolds + 100 μg of BMP2; 4) BCP scaffolds + 20 μg of BMP2; 5) BCP scaffolds + 50 μg of BMP2; and 6) BCP scaffolds + 100 μg of BMP2. Furthermore, tartrate-resistant acid phosphatase (TRAP) staining was utilized to assess osteoclast activity and osteoclast number. The release kinetics of BMP2 from both BCP and collagen scaffolds was investigated over a 14-day period. RESULTS The results from present study demonstrate that BMP2 is able to promote new bone formation in a concentration dependant manner when loaded with either a collagen scaffolds or BCP scaffolds. Micro-CT analysis demonstrated significantly higher levels of new bone formation in groups containing BCP + BMP2 when compared with collagen scaffolds + BMP2. BMP2 had little effect on osteoclast activity; however, less TRAP staining and osteoclast number was observed in the defects receiving collagen scaffolds when compared with BCP scaffolds. The release of BMP2 over time was rapidly released after 1 day on BCP scaffolds whereas a gradually release over time was observed for collagen scaffolds up to 14 days. CONCLUSION The osteoinductive properties of BMP2 may further be enhanced by its combination with a novel synthetically fabricated osteoinductive BCP scaffold. Future clinical testing is required to further assess these preliminary findings.
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Affiliation(s)
- Yufeng Zhang
- Department of Oral Implantology, School of Stomatology, Wuhan University, Wuhan, China
| | - Shuang Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Wei Zhou
- Hangzhou Jiuyuan Gene Engineering Co, Hangzhou, China
| | - Hang Fu
- Hangzhou Jiuyuan Gene Engineering Co, Hangzhou, China
| | - Li Qian
- Hangzhou Jiuyuan Gene Engineering Co, Hangzhou, China
| | - Richard J Miron
- Department of Periodontology, Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland
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Singleton ST, Lein PJ, Dadson OA, McGarrigle BP, Farahat FM, Farahat T, Bonner MR, Fenske RA, Galvin K, Lasarev MR, Anger WK, Rohlman DS, Olson JR. Longitudinal assessment of occupational exposures to the organophosphorous insecticides chlorpyrifos and profenofos in Egyptian cotton field workers. Int J Hyg Environ Health 2014; 218:203-11. [PMID: 25466362 DOI: 10.1016/j.ijheh.2014.10.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 10/19/2014] [Accepted: 10/29/2014] [Indexed: 10/24/2022]
Abstract
Chlorpyrifos (CPF) and profenofos (PFF) are organophosphorus (OP) insecticides that are applied seasonally in Egypt to cotton fields. Urinary trichloro-2-pyridinol (TCPy), a specific CPF metabolite, and 4-bromo-2-chlorophenol (BCP), a specific PFF metabolite, are biomarkers of exposure, while inhibition of blood butyrylcholinesterase (BChE) and acetylcholinesterase (AChE) activities are effect biomarkers that may be associated with neurotoxicity. Urinary TCPy and BCP and blood BChE and AChE activities were measured in 37 adult Egyptian Ministry of Agriculture workers during and after 9-17 consecutive days of CPF application followed by an application of PFF (9-11 days), and a second CPF application (5 days) in 2008. During the OP applications, urinary TCPy and BCP levels were significantly higher than baseline levels, remained elevated following the application periods, and were associated with an exposure related inhibition of blood BChE and AChE. Analysis of blood AChE levels before and after the PFF application period suggests that individual workers with peak BCP levels greater than 1000 μg/g creatinine exhibited further inhibition of blood AChE with PFF application, demonstrating that PFF exposure had a negative impact on AChE activity in this highly exposed worker population. While large interindividual differences in exposure were observed throughout this longitudinal study (peak urinary BCP and peak TCPy levels for individuals ranging from 13.4 to 8052 and 16.4 to 30,107 μg/g creatinine, respectively), these urinary biomarkers were highly correlated within workers (r=0.75, p<0.001). This suggests that the relative exposures to CPF and PFF were highly correlated for a given worker. The variable exposures between job classification and work site suggest that job title and work location should not be used as the sole basis for categorizing OP exposures when assessing neurobehavioral and other health outcomes in Egyptian cotton field workers. Together, these findings will be important in educating the Egyptian insecticide application workers in order to encourage the development and implementation of work practices and personal protective equipment to reduce their exposure to CPF and PFF.
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Affiliation(s)
- Steven T Singleton
- Department of Pharmacology & Toxicology, State University of New York at Buffalo, Buffalo, NY, USA
| | - Pamela J Lein
- UC Davis School of Veterinary Medicine, Davis, CA, USA
| | - Oswald A Dadson
- Department of Pharmacology & Toxicology, State University of New York at Buffalo, Buffalo, NY, USA
| | - Barbara P McGarrigle
- Department of Pharmacology & Toxicology, State University of New York at Buffalo, Buffalo, NY, USA
| | - Fayssal M Farahat
- Department of Community Medicine and Public Health, Faculty of Medicine, Menoufia University, Shibin Al Kawm, Egypt
| | - Taghreed Farahat
- Department of Family Medicine, Faculty of Medicine, Menoufia University, Shibin Al Kawm, Egypt
| | - Matthew R Bonner
- Department of Epidemiology and Environmental Health, State University of New York at Buffalo, Buffalo, NY, USA
| | | | - Kit Galvin
- University of Washington, Seattle, WA, USA
| | | | - W Kent Anger
- Oregon Health and Science University, Portland, OR, USA
| | | | - James R Olson
- Department of Pharmacology & Toxicology, State University of New York at Buffalo, Buffalo, NY, USA; Department of Epidemiology and Environmental Health, State University of New York at Buffalo, Buffalo, NY, USA.
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Iyer AK, Singh A, Ganta S, Amiji MM. Role of integrated cancer nanomedicine in overcoming drug resistance. Adv Drug Deliv Rev 2013; 65:1784-802. [PMID: 23880506 DOI: 10.1016/j.addr.2013.07.012] [Citation(s) in RCA: 227] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Revised: 06/19/2013] [Accepted: 07/15/2013] [Indexed: 12/18/2022]
Abstract
Cancer remains a major killer of mankind. Failure of conventional chemotherapy has resulted in recurrence and development of virulent multi drug resistant (MDR) phenotypes adding to the complexity and diversity of this deadly disease. Apart from displaying classical physiological abnormalities and aberrant blood flow behavior, MDR cancers exhibit several distinctive features such as higher apoptotic threshold, aerobic glycolysis, regions of hypoxia, and elevated activity of drug-efflux transporters. MDR transporters play a pivotal role in protecting the cancer stem cells (CSCs) from chemotherapy. It is speculated that CSCs are instrumental in reviving tumors after the chemo and radiotherapy. In this regard, multifunctional nanoparticles that can integrate various key components such as drugs, genes, imaging agents and targeting ligands using unique delivery platforms would be more efficient in treating MDR cancers. This review presents some of the important principles involved in development of MDR and novel methods of treating cancers using multifunctional-targeted nanoparticles. Illustrative examples of nanoparticles engineered for drug/gene combination delivery and stimuli responsive nanoparticle systems for cancer therapy are also discussed.
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Martinot-peignoux M, Lapalus M, Laouénan C, Lada O, Netto-cardoso ACF, Boyer N, Ripault MP, Carvalho-filho R, Asselah T, Marcellin P. Prediction of disease reactivation in asymptomatic hepatitis B e antigen-negative chronic hepatitis B patients using baseline serum measurements of HBsAg and HBV-DNA. J Clin Virol 2013; 58:401-7. [DOI: 10.1016/j.jcv.2013.08.010] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 08/05/2013] [Accepted: 08/08/2013] [Indexed: 12/17/2022]
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Overman JR, Helder MN, ten Bruggenkate CM, Schulten EAJM, Klein-Nulend J, Bakker AD. Growth factor gene expression profiles of bone morphogenetic protein-2-treated human adipose stem cells seeded on calcium phosphate scaffolds in vitro. Biochimie 2013; 95:2304-13. [PMID: 24028822 DOI: 10.1016/j.biochi.2013.08.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 08/27/2013] [Indexed: 12/17/2022]
Abstract
The secretome of stem cells strongly determines the outcome of tissue engineering strategies. We investigated how the secretome of human adipose stem cells (hASCs) can be affected by substrate, BMP-2 treatment, and degree of differentiation. We hypothesized that as differentiation progresses, hASCs produce increasingly more gene products associated with processes such as angiogenesis and bone remodeling. Human ASCs were treated for 15 min with BMP-2 (10 ng/ml) to enhance osteogenic differentiation, or with vehicle. Subsequently, hASCs were seeded on plastic or on biphasic calcium phosphate (BCP) consisting of 60% hydroxyapatite and 40% β-tricalcium phosphate. A PCR array for ~150 trophic factors and differentiation-related genes was performed at day 21 of culture. A limited set of factors was quantified by qPCR at days 0, 4, 14 and 21, and/or ELISA at day 21. Compared to plastic, BCP-cultured hASCs showed ≥2-fold higher expression of ~20 factors, e.g. cytokines such as IL-6, growth factors such as FGF7 and adhesion molecules such as VCAM1. Expression of another ~50 genes was decreased ≥2-fold on BCP vs. plastic, even though hASCs differentiate better on BCP than on plastic. BMP-2-treatment increased the expression of ~30 factors by hASCs seeded on BCP, while it decreased the expression of only PGF, PPARG and PTN. Substrate affected hASC secretion of Activin A and seemed to affect P1NP release. No clear association between hASC osteogenic differentiation and growth factor expression pattern was observed. Considering our observed lack of association between the degree of differentiation and the expression of factors associated with angiogenesis and bone remodeling by hASCs, future bone regeneration studies should focus more on systematically orchestrating the secretome of stem cells, rather than on inducing osteogenic differentiation of stem cells only. Short incubation with BMP-2 may be a promising treatment to enhance both osteogenic differentiation and environmental modulation.
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Affiliation(s)
- J R Overman
- Dept. Oral Cell Biology, Academic Centre for Dentistry Amsterdam, University of Amsterdam and VU University Amsterdam, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands; Dept. Oral and Maxillofacial Surgery, Academic Centre for Dentistry Amsterdam/VU University Medical Center, MOVE Research Institute Amsterdam, Amsterdam, The Netherlands
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Ke C, Li C, Huang X, Cao F, Shi D, He W, Bu H, Gao F, Cai T, Hinton AO, Tian Y. Protocadherin20 promotes excitatory synaptogenesis in dorsal horn and contributes to bone cancer pain. Neuropharmacology 2013; 75:181-90. [PMID: 23911744 DOI: 10.1016/j.neuropharm.2013.07.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 07/04/2013] [Accepted: 07/15/2013] [Indexed: 01/13/2023]
Abstract
The majority of patients with metastatic bone disease experience moderate to severe pain. Bone cancer pain is usually progressive as the disease advances, and is very difficult to treat due to the poor understanding of the underlying mechanisms. Recent studies demonstrated that synaptic plasticity induces spinal cord sensitization and contributes to bone cancer pain. However, whether the synaptic plasticity is due to modifications of existing synapses or the formation of new synaptic connections is still unknown. Here we showed that a carcinoma implantation into a rats' tibia induced a significant increase in the number of excitability synapses in the dorsal horn, which contributes to the development of bone cancer pain. Previous studies identified that non-clustered protocadherins play significant roles in neuronal development and other implications in neurological disorders. In the present study, we showed that Protocadherin20 was significantly increased in the dorsal horn of cancer-bearing rats, while knockdown of Protocadherin20 with RNAi lentivirus reversed bone cancer-induced pain behaviors and decreased excitatory synaptogenesis in ipsilateral dorsal horn. In an in vitro study, we showed that knockdown of Protocadherin20 inhibited neurite outgrowth and excitatory synapse formation of dorsal neurons. These findings indicate that Protocadherin20 is required for the development of bone cancer pain probably by promoting the excitability synaptogenesis.
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Affiliation(s)
- Changbin Ke
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Department of Anesthesiology, Taihe Hospital, Hubei University of Medicine, Shiyan City, Hubei Province 442000, China
| | - Caijuan Li
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaoxia Huang
- Department of Nephrology, Taihe Hospital, Hubei University of Medicine, Shiyan City, Hubei Province 442000, China
| | - Fei Cao
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
| | - Dai Shi
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Wensheng He
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Huilian Bu
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Feng Gao
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Tiantian Cai
- Department of Neuroscience, Baylor College of Medicine, Houston, TX 77030, USA
| | - Antentor Othrell Hinton
- Integrative Molecular and Biomedical Sciences Graduate Program CNRC Baylor College of Medicine, Houston, TX 77030, USA
| | - Yuke Tian
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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