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Malekmohammadi S, Jamshidi R, Sadowska JM, Meng C, Abeykoon C, Akbari M, Gong RH. Stimuli-Responsive Codelivery System-Embedded Polymeric Nanofibers with Synergistic Effects of Growth Factors and Low-Intensity Pulsed Ultrasound to Enhance Osteogenesis Properties. ACS APPLIED BIO MATERIALS 2024; 7:4293-4306. [PMID: 38917363 PMCID: PMC11253091 DOI: 10.1021/acsabm.4c00111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 05/21/2024] [Accepted: 06/16/2024] [Indexed: 06/27/2024]
Abstract
The present work aims to develop optimized scaffolds for bone repair by incorporating mesoporous nanoparticles into them, thereby combining bioactive factors for cell growth and preventing rapid release or loss of effectiveness. We synthesized biocompatible and biodegradable scaffolds designed for the controlled codelivery of curcumin (CUR) and recombinant human bone morphogenic protein-2 (rhBMP-2). Active agents in dendritic silica/titania mesoporous nanoparticles (DSTNs) were incorporated at different weight percentages (0, 2, 5, 7, 9, and 10 wt %) into a matrix of polycaprolactone (PCL) and polyethylene glycol (PEG) nanofibers, forming the CUR-BMP-2@DSTNs/PCL-PEG delivery system (S0, S2, S5, S7, S9, and S10, respectively, with the number showing the weight percentage). To enhance the formation process, the system was treated using low-intensity pulsed ultrasound (LIPUS). Different advanced methods were employed to assess the physical, chemical, and mechanical characteristics of the fabricated scaffolds, all confirming that incorporating the nanoparticles improves their mechanical and structural properties. Their hydrophilicity increased by approximately 25%, leading to ca. 53% enhancement in their water absorption capacity. Furthermore, we observed a sustained release of approximately 97% for CUR and 70% for BMP-2 for the S7 (scaffold with 7 wt % DSTNs) over 28 days, which was further enhanced using ultrasound. In vitro studies demonstrated accelerated scaffold biodegradation, with the highest level observed in S7 scaffolds, approximately three times higher than the control group. Moreover, the cell viability and proliferation on DSTNs-containing scaffolds increased when compared to the control group. Overall, our study presents a promising nanocomposite scaffold design with notable improvements in structural, mechanical, and biological properties compared to the control group, along with controlled and sustained drug release capabilities. This makes the scaffold a compelling candidate for advanced bone tissue engineering and regenerative therapies.
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Affiliation(s)
- Samira Malekmohammadi
- Department
of Materials, Engineering Building A, University
of Manchester, Manchester M13 9PL, U.K.
| | - Rashid Jamshidi
- Department
of Engineering, Manchester Metropolitan
University, Manchester M1 5GD, U.K.
| | - Joanna M. Sadowska
- Advanced
Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, Dublin D02 YN77, Ireland
- Tissue
Engineering Research Group, Department of Anatomy & Regenerative
Medicine, Royal College of Surgeons in Ireland, Dublin D02 YN77, Ireland
| | - Chen Meng
- Department
of Materials, Engineering Building A, University
of Manchester, Manchester M13 9PL, U.K.
| | - Chamil Abeykoon
- Department
of Materials, Engineering Building A, University
of Manchester, Manchester M13 9PL, U.K.
| | - Mohsen Akbari
- Laboratory
for Innovations in Microengineering (LiME), Department of Mechanical
Engineering, University of Victoria, Victoria, British Columbia V8P 5C2, Canada
- Terasaki
Institute for Biomedical Innovations, Los Angeles, California 90024, United States
| | - R. Hugh Gong
- Department
of Materials, Engineering Building A, University
of Manchester, Manchester M13 9PL, U.K.
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Yu C, Chen B, Su H, Yang Y. Long non-coding RNA MIAT serves as a biomarker of fragility fracture and promotes fracture healing. J Orthop Surg Res 2024; 19:343. [PMID: 38849896 PMCID: PMC11162066 DOI: 10.1186/s13018-024-04824-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Accepted: 05/29/2024] [Indexed: 06/09/2024] Open
Abstract
BACKGROUND Fragility fracture is common in the elderly. Osteoblast differentiation is essential for bone healing and regeneration. Expression pattern of long non-coding RNA MIAT during fracture healing was examined, and its role in osteoblast differentiation was investigated. METHODS 90 women with simple osteoporosis and 90 women with fragility fractures were included. Another 90 age-matched women were set as the control group. mRNA levels were tested using RT-qPCR. Cell viability was detected via CCK-8, and osteoblastic biomarkers, including ALP, OCN, Collagen I, and RUNX2 were tested via ELISA. The downstream miRNAs and genes targeted by MIAT were predicted by bioinformatics analysis, whose functions and pathways were annotated via GO and KEGG analysis. RESULTS Serum MIAT was upregulated in osteoporosis women with high accuracy of diagnostic efficacy. Serum MIAT was even elevated in the fragility fracture group, but decreased in a time manner after operation. MIAT knockdown promoted osteogenic proliferation and differentiation of MC3T3-E1, but the influences were reversed by miR-181a-5p inhibitor. A total of 137 overlapping target genes of miR-181a-5p were predicted based on the miRDB, TargetScan and microT datasets, which were mainly enriched for terms related to signaling pathways regulating pluripotency of stem cells, cellular senescence, and osteoclast differentiation. CONCLUSIONS LncRNA MIAT serves as a promising biomarker for osteoporosis, and promotes osteogenic differentiation via targeting miR-181a-5p.
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Affiliation(s)
- Chao Yu
- Department of Orthopedics, Liaocheng People's Hospital, No. 67, West Dongchang Road, Liaocheng, 252000, China
| | - Binbin Chen
- Department of Nephrology, Liaocheng People's Hospital, Liaocheng, 252000, China
| | - Hui Su
- Department of Oncology, Liaocheng People's Hospital, Liaocheng, 252000, China
| | - Yiqun Yang
- Department of Orthopedics, Liaocheng People's Hospital, No. 67, West Dongchang Road, Liaocheng, 252000, China.
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Naskar A, Kilari S, Misra S. Chitosan-2D Nanomaterial-Based Scaffolds for Biomedical Applications. Polymers (Basel) 2024; 16:1327. [PMID: 38794520 PMCID: PMC11125373 DOI: 10.3390/polym16101327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/03/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024] Open
Abstract
Chitosan (CS) and two-dimensional nanomaterial (2D nanomaterials)-based scaffolds have received widespread attention in recent times in biomedical applications due to their excellent synergistic potential. CS has garnered much attention as a biomedical scaffold material either alone or in combination with some other material due to its favorable physiochemical properties. The emerging 2D nanomaterials, such as black phosphorus (BP), molybdenum disulfide (MoS2), etc., have taken huge steps towards varying biomedical applications. However, the implementation of a CS-2D nanomaterial-based scaffold for clinical applications remains challenging for different reasons such as toxicity, stability, etc. Here, we reviewed different types of CS scaffold materials and discussed their advantages in biomedical applications. In addition, a different CS nanostructure, instead of a scaffold, has been described. After that, the importance of 2D nanomaterials has been elaborated on in terms of physiochemical properties. In the next section, the biomedical applications of CS with different 2D nanomaterial scaffolds have been highlighted. Finally, we highlighted the existing challenges and future perspectives of using CS-2D nanomaterial scaffolds for biomedical applications. We hope that this review will encourage a more synergistic biomedical application of the CS-2D nanomaterial scaffolds and their utilization clinical applications.
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Affiliation(s)
| | | | - Sanjay Misra
- Vascular and Interventional Radiology Translational Laboratory, Division of Vascular and Interventional Radiology, Department of Radiology, Mayo Clinic, Rochester, MN 55905, USA; (A.N.); (S.K.)
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El-Sayed SAM, ElShebiney S, Beherei HH, Kumar P, Choonara YE, Mabrouk M. Copper-doped magnesium phosphate nanopowders for critical size calvarial bone defect intervention. J Biomed Mater Res B Appl Biomater 2024; 112:e35376. [PMID: 38359173 DOI: 10.1002/jbm.b.35376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 12/11/2023] [Accepted: 01/02/2024] [Indexed: 02/17/2024]
Abstract
Calvarial defects of bone present difficult clinical situations, and their restoration using biocompatible materials requires special treatments that enable bone regeneration. Magnesium phosphate (MgP) is known as an osteoinductive biomaterial because it contains Mg2+ ions and P ions that enhance the activity of osteoplast cells and help in bone regeneration. In this study, MgP and CuO-doped MgP were fabricated and characterized for their physicomechanical properties, particle size, morphology, surface area, antibacterial test, and in vitro bioactivity evaluation using the following techniques: X-rays diffraction, Fourier-transformer infrared, TEM, and Brunauer, Emmett and Teller (BET) surface area, X-rays photoelectron spectroscopy (XPS), and Scanning electron microscopy (SEM). Furthermore, these nanopowders were implanted in adult inbred male Wistar rats and studied after two periods (28 and 56 days). The results demonstrated that the obtained semiamorphous powders are in nanoscale (≤ 50 nm). XPS analysis ensured the preparation of MgP as mono MgP and CuO were incorporated in the structure as Cu2+ . The bioactivity was supported by the observation of calcium phosphate layer on the nanopowders' surface. The in vivo study demonstrated success of MgP nanopowders especially those doped with CuO in restoration of calvarial defect bone. Therefore, fabricated biomaterials are of great potential in restoration of bone calvarial defects.
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Affiliation(s)
- Sara A M El-Sayed
- Refractories, Ceramics and Building Materials Department, National Research Centre, Cairo, Egypt
| | - Shaimaa ElShebiney
- Department of Narcotics, Ergogenic Aids and Poisons, Medical Research and Clinical Studies Institute, National Research Centre, Cairo, Egypt
| | - Hanan H Beherei
- Refractories, Ceramics and Building Materials Department, National Research Centre, Cairo, Egypt
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, School of Therapeutic Sciences, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Mostafa Mabrouk
- Refractories, Ceramics and Building Materials Department, National Research Centre, Cairo, Egypt
- Academy of Scientific Research and Technology (ASRT), Cairo, 11516, Egypt
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Guler S, Eichholz K, Chariyev-Prinz F, Pitacco P, Aydin HM, Kelly DJ, Vargel İ. Biofabrication of Poly(glycerol sebacate) Scaffolds Functionalized with a Decellularized Bone Extracellular Matrix for Bone Tissue Engineering. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 10:bioengineering10010030. [PMID: 36671602 PMCID: PMC9854839 DOI: 10.3390/bioengineering10010030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/10/2022] [Accepted: 12/12/2022] [Indexed: 12/29/2022]
Abstract
The microarchitecture of bone tissue engineering (BTE) scaffolds has been shown to have a direct effect on the osteogenesis of mesenchymal stem cells (MSCs) and bone tissue regeneration. Poly(glycerol sebacate) (PGS) is a promising polymer that can be tailored to have specific mechanical properties, as well as be used to create microenvironments that are relevant in the context of BTE applications. In this study, we utilized PGS elastomer for the fabrication of a biocompatible and bioactive scaffold for BTE, with tissue-specific cues and a suitable microstructure for the osteogenic lineage commitment of MSCs. In order to achieve this, the PGS was functionalized with a decellularized bone (deB) extracellular matrix (ECM) (14% and 28% by weight) to enhance its osteoinductive potential. Two different pore sizes were fabricated (small: 100-150 μm and large: 250-355 μm) to determine a preferred pore size for in vitro osteogenesis. The decellularized bone ECM functionalization of the PGS not only improved initial cell attachment and osteogenesis but also enhanced the mechanical strength of the scaffold by up to 165 kPa. Furthermore, the constructs were also successfully tailored with an enhanced degradation rate/pH change and wettability. The highest bone-inserted small-pore scaffold had a 12% endpoint weight loss, and the pH was measured at around 7.14. The in vitro osteogenic differentiation of the MSCs in the PGS-deB blends revealed a better lineage commitment of the small-pore-sized and 28% (w/w) bone-inserted scaffolds, as evidenced by calcium quantification, ALP expression, and alizarin red staining. This study demonstrates a suitable pore size and amount of decellularized bone ECM for osteoinduction via precisely tailored PGS elastomer BTE scaffolds.
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Affiliation(s)
- Selcan Guler
- Bioengineering Division, Institute of Science and Engineering, Hacettepe University, 06800 Ankara, Turkey
| | - Kian Eichholz
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 R590 Dublin, Ireland
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, D02 R590 Dublin, Ireland
| | - Farhad Chariyev-Prinz
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 R590 Dublin, Ireland
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, D02 R590 Dublin, Ireland
| | - Pierluca Pitacco
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 R590 Dublin, Ireland
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, D02 R590 Dublin, Ireland
| | - Halil Murat Aydin
- Bioengineering Division, Institute of Science and Engineering, Hacettepe University, 06800 Ankara, Turkey
| | - Daniel J. Kelly
- Trinity Centre for Biomedical Engineering, Trinity Biomedical Sciences Institute, Trinity College Dublin, D02 R590 Dublin, Ireland
- Department of Mechanical and Manufacturing Engineering, School of Engineering, Trinity College Dublin, D02 R590 Dublin, Ireland
- Advanced Materials and Bioengineering Research Centre (AMBER), Royal College of Surgeons in Ireland and Trinity College Dublin, D02 F6N2 Dublin, Ireland
- Department of Anatomy, Royal College of Surgeons in Ireland, D02 YN77 Dublin, Ireland
| | - İbrahim Vargel
- Bioengineering Division, Institute of Science and Engineering, Hacettepe University, 06800 Ankara, Turkey
- Department of Plastic and Reconstructive Surgery, Hacettepe University Hospitals, 06230 Ankara, Turkey
- Correspondence:
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Kahali P, Montazer M, Kamali Dolatabadi M. Attachment of Tragacanth gum on polyester fabric through the synthesis of iron oxide gaining novel biological, physical, and thermal features. Int J Biol Macromol 2022; 207:193-204. [PMID: 35248610 DOI: 10.1016/j.ijbiomac.2022.02.194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 02/22/2022] [Accepted: 02/28/2022] [Indexed: 11/30/2022]
Abstract
This study focuses on polyester fabric modification to produce environmentally-friendly multifunctional fabrics for varied applications. The nanoparticles of iron oxide were achieved from ferrous sulfate solution under alkaline conditions and applied to Tragacanth gum to form an efficient layer on the polyester surface. The synthesis of Fe3O4 nanoparticles with a crystal size of 12 nm was approved in the XRD spectra and iron oxide/Tragacanth gum nanocomposites with an agglomerated size of about 62 nm were confirmed by the SEM and EDX techniques. The formation of hydroxyl and iron oxide bands was observed in the FTIR and XPS patterns. The superparamagnetic behavior of treated samples exhibited by VSM with a magnetic saturation of 0.86 emu/g. The products showed an antibacterial activity (95 and 91%) toward Gram-positive and -negative bacteria. The absorbance intensity of methylene blue decreased from 2.6 to 1.6 by the treated sample. The synthesized nanoparticles on the treated surface indicated a lower release of iron ions and cell toxicity. The rate of cell duplication increased under a magnetic field with 60 Hz and 0.5 mT for 20 min/day. The product color changed from white to a brownish hue and the wetting capacity and thermal ability increased.
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Affiliation(s)
- P Kahali
- Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - M Montazer
- Department of Textile Engineering, Amirkabir University of Technology, Tehran, Iran.
| | - M Kamali Dolatabadi
- Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Fauzi MB, Rashidbenam Z, Bin Saim A, Binti Hj Idrus R. Preliminary Study of In Vitro Three-Dimensional Skin Model Using an Ovine Collagen Type I Sponge Seeded with Co-Culture Skin Cells: Submerged versus Air-Liquid Interface Conditions. Polymers (Basel) 2020; 12:polym12122784. [PMID: 33255581 PMCID: PMC7760328 DOI: 10.3390/polym12122784] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/13/2020] [Accepted: 11/17/2020] [Indexed: 12/20/2022] Open
Abstract
Three-dimensional (3D) in vitro skin models have been widely used for cosmeceutical and pharmaceutical applications aiming to reduce animal use in experiment. This study investigate capability of ovine tendon collagen type I (OTC-I) sponge suitable platform for a 3D in vitro skin model using co-cultured skin cells (CC) containing human epidermal keratinocytes (HEK) and human dermal fibroblasts (HDF) under submerged (SM) and air-liquid interface (ALI) conditions. Briefly, the extracted OTC-I was freeze-dried and crosslinked with genipin (OTC-I_GNP) and carbodiimide (OTC-I_EDC). The gross appearance, physico-chemical characteristics, biocompatibility and growth profile of seeded skin cells were assessed. The light brown and white appearance for the OTC-I_GNP scaffold and other groups were observed, respectively. The OTC-I_GNP scaffold demonstrated the highest swelling ratio (~1885%) and water uptake (94.96 ± 0.14%). The Fourier transformation infrared demonstrated amide A, B and I, II and III which represent collagen type I. The microstructure of all fabricated sponges presented a similar surface roughness with the presence of visible collagen fibers and a heterogenous porous structure. The OTC-I_EDC scaffold was more toxic and showed the lowest cell attachment and proliferation as compared to other groups. The micrographic evaluation revealed that CC potentially formed the epidermal- and dermal-like layers in both SM and ALI that prominently observed with OTC-I_GNP compared to others. In conclusion, these results suggest that OTC_GNP could be used as a 3D in vitro skin model under ALI microenvironment.
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Affiliation(s)
- Mh Busra Fauzi
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, UKM Medical Centre, Jalan Yaacob Latiff, Bandar Tun Razak, Kuala Lumpur 56000, Malaysia; (Z.R.); (R.B.H.I.)
- Correspondence: ; Tel.: +603-91457670
| | - Zahra Rashidbenam
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, UKM Medical Centre, Jalan Yaacob Latiff, Bandar Tun Razak, Kuala Lumpur 56000, Malaysia; (Z.R.); (R.B.H.I.)
| | - Aminuddin Bin Saim
- Ear, Nose & Throat Consultant Clinic, Ampang Puteri Specialist Hospital, Taman Dato Ahmad Razali, Selangor 68000, Malaysia;
| | - Ruszymah Binti Hj Idrus
- Centre for Tissue Engineering and Regenerative Medicine, Faculty of Medicine, UKM Medical Centre, Jalan Yaacob Latiff, Bandar Tun Razak, Kuala Lumpur 56000, Malaysia; (Z.R.); (R.B.H.I.)
- Department of Physiology, Faculty of Medicine, UKM Medical Centre, Jalan Yaacob Latiff, Bandar Tun Razak, Kuala Lumpur 56000, Malaysia
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8
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Sun X, Sun A, Jia X, Jin S, Zhang D, Xiao K, Wang Q. In vitro bioactivity of AH plus with the addition of nano-magnesium hydroxide. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:313. [PMID: 32355757 PMCID: PMC7186602 DOI: 10.21037/atm.2020.02.133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Background AH Plus (AH) has been widely used as a root canal sealer in the endodontic field due to its superior physicochemical properties. However, clinical application of AH is limited due to its weak bioactivity. Methods In this study, we have developed an AH cement containing nano-magnesium hydroxide (NMH) as an additive to enhance the bioactivity of AH. The NMH can neutralize pH and facilitate bone formation. The objective of this study was to evaluate the effects of NMH and modified AH on osteoblasts behavior in vitro. The CCK-8, alkaline phosphatase (ALP) staining, and real-time polymerase chain reaction (PCR) assays were used to assess the proliferation and differentiation of MC3T3-E1 cells, respectively. The adhesion and spreading of MC3T3-E1 cells were investigated in vitro by scanning electron microscopy (SEM). Meanwhile, the flow and magnesium ion release of the modified AH was also concerned. Results In vitro cell assays further showed that the addition of NMH into AH cement, which was denoted as modified AH (especially AH+3%NMH), could effectively improve the proliferation and osteogenic differentiation of MC3T3-E1 cells. Conclusions Taken all together, we believe that the modified AH samples (especially AH+3%NMH) have outstanding biocompatibility and osteogenic properties and may have great potential in endodontic field.
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Affiliation(s)
- Xiujuan Sun
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
| | - Aoteng Sun
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
| | - Xingya Jia
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
| | - Shi Jin
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China
| | - Dan Zhang
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China.,Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang 110002, China
| | - Keshen Xiao
- Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110002, China
| | - Qiang Wang
- School and Hospital of Stomatology, China Medical University, Shenyang 110002, China.,Liaoning Provincial Key Laboratory of Oral Diseases, China Medical University, Shenyang 110002, China
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Wang L, Zhang K, Hao Y, Liu M, Wu W. Osteoblast/bone-tissue responses to porous surface of polyetheretherketone-nanoporous lithium-doped magnesium silicate blends' integration with polyetheretherketone. Int J Nanomedicine 2019; 14:4975-4989. [PMID: 31371942 PMCID: PMC6626899 DOI: 10.2147/ijn.s197179] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 05/14/2019] [Indexed: 01/12/2023] Open
Abstract
The porous surface of a polyetheretherketone (PK)-nanoporous lithium-doped magnesium silicate (NLS) blend (PKNLS) was fabricated on a PK surface by layer-by-layer pressuring, sintering, and salt-leaching. As controls, porous surfaces of a PK/lithium-doped magnesium silicate blend (PKLS) and PK were fabricated using the same method. The results revealed that porosity, water absorption, and protein absorption of the porous surface of PKNLS containing macropores and nanopores were obviously enhanced compared to PKLS and PK containing macropores without nanopores. In addition, PKNLS, with both macroporostiy and nanoporosity, displayed the highest ability of apatite mineralization in simulated body liquid, indicating excellent bioactivity. In vitro responses (including adhesion, proliferation, and differentiation) of MC3T3E1 cells to PKNLS were significantly enhanced compared to PKLS and PK. In vivo implantation results showed that new bone grew into the macroporous surface of PKNLS, and the amount of new bone for PKNLS was the highest. In short, PKNLS integration with PK significantly promoted cells/bone-tissue responses and exhibited excellent osteogenesis in vivo, which might have great potential for bone repair.
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Affiliation(s)
- Lei Wang
- Department of Orthopaedics, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai200011, People’s Republic of China
| | - Kai Zhang
- Department of Orthopaedics, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai200011, People’s Republic of China
| | - Yongqiang Hao
- Department of Orthopaedics, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai200011, People’s Republic of China
| | - Ming Liu
- Department of Orthopaedics, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai200011, People’s Republic of China
| | - Wen Wu
- Department of Orthopaedics, Shanghai Key Laboratory of Orthopaedic Implants, Shanghai Ninth People’s Hospital, Shanghai Jiaotong University School of Medicine, Shanghai200011, People’s Republic of China
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Moonesi Rad R, Atila D, Akgün EE, Evis Z, Keskin D, Tezcaner A. Evaluation of human dental pulp stem cells behavior on a novel nanobiocomposite scaffold prepared for regenerative endodontics. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:928-948. [DOI: 10.1016/j.msec.2019.03.022] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 02/11/2019] [Accepted: 03/07/2019] [Indexed: 02/06/2023]
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Chen Z, Zhao M, Zhang J, Zhou K, Ren X, Mei X. Construction of injectable, pH sensitive, antibacterial, mineralized amino acid yolk-shell microspheres for potential minimally invasive treatment of bone infection. Int J Nanomedicine 2018; 13:3493-3506. [PMID: 29950831 PMCID: PMC6014387 DOI: 10.2147/ijn.s157463] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
INTRODUCTION Treatment of infection within bone is difficult, and conventional surgical treatment brings intense pain to the patients physically and mentally. There is an urgent need to develop injectable nano- and/or micro-medicine for minimally invasive treatment of osteomyelitis. METHODS In this paper, amino acid (L-lysine [Lys]) was mineralized into yolk-shell structured CaCO3 microspheres (MSs). The morphologies of the obtained MSs were investigated by scanning electron microscopy and transmission electron microscopy. The composition of CaCO3 MSs was identified by using Fourier transform infrared spectroscopy. The as-prepared CaCO3 MSs were examined with power X-ray diffraction analysis to obtain the crystallographic structure of the MSs. RESULTS The as prepared Lys encapsulated CaCO3 MSs (Lys@CaCO3 MSs) were used as micro-drug to improve acidic environment of osteomyelitis caused by bacterial infection and promote osteoblast proliferation under oxidative stress. These pH responsive Lys@CaCO3 MSs have a drug loading efficiency of 89.8 wt % and drug loading content (DLC) of 22.3 wt %. CONCLUSION Our results demonstrated that Lys@CaCO3 MSs can effectively kill Staphylococcus aureus and promote proliferation and differentiation of osteoblasts under stimulation of H2O2 at pH = 5.5.
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Affiliation(s)
- Zhenhua Chen
- Jinzhou Medical University, Jinzhou, 121001, People’s Republic of China
| | - Mengen Zhao
- Jinzhou Medical University, Jinzhou, 121001, People’s Republic of China
| | - Jie Zhang
- Jinzhou Medical University, Jinzhou, 121001, People’s Republic of China
| | - Kang Zhou
- Jinzhou Medical University, Jinzhou, 121001, People’s Republic of China
| | - Xiuli Ren
- Jinzhou Medical University, Jinzhou, 121001, People’s Republic of China
| | - Xifan Mei
- Jinzhou Medical University, Jinzhou, 121001, People’s Republic of China
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Intramembranous ossification and endochondral ossification are impaired differently between glucocorticoid-induced osteoporosis and estrogen deficiency-induced osteoporosis. Sci Rep 2018; 8:3867. [PMID: 29497100 PMCID: PMC5832871 DOI: 10.1038/s41598-018-22095-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 02/15/2018] [Indexed: 01/15/2023] Open
Abstract
A fracture is the most dangerous complication of osteoporosis in patients because the associated disability and mortality rates are high. Osteoporosis impairs fracture healing and prognosis, but how intramembranous ossification (IO) or endochondral ossification (EO) during fracture healing are affected and whether these two kinds of ossification are different between glucocorticoid-induced osteoporosis (GIOP) and estrogen deficiency-induced osteoporosis (EDOP) are poorly understood. In this study, we established two bone repair models that exhibited repair via IO or EO and compared the pathological progress of each under GIOP and EDOP. In the cortical drill-hole model, which is repaired through IO, osteogenic differentiation was more seriously impaired in EDOP at the early stage than in GIOP. In the periosteum scratch model, in which EO is replicated, chondrocyte hypertrophy progression was delayed in both GIOP and EDOP. The in vitro results were consistent with the in vivo results. Our study is the first to establish bone repair models in which IO and EO occur separately, and the results strongly describe the differences in bone repair between GIOP and EDOP.
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Ru J, Wei Q, Yang L, Qin J, Tang L, Wei J, Guo L, Niu Y. Zein regulating apatite mineralization, degradability, in vitro cells responses and in vivo osteogenesis of 3D-printed scaffold of n-MS/ZN/PCL ternary composite. RSC Adv 2018; 8:18745-18756. [PMID: 35539669 PMCID: PMC9080628 DOI: 10.1039/c8ra02595a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 05/09/2018] [Indexed: 12/03/2022] Open
Abstract
Bioactive and degradable scaffolds of nano magnesium silicate (n-MS)/zein (ZN)/poly(caprolactone) (PCL) ternary composites were prepared by 3D-printing method. The results showed that the 3D-printed scaffolds possessed controllable pore structure, and pore morphology, pore size, porosity and pore interconnectivity of the scaffolds can be efficiently adjusted. In addition, the apatite-mineralization ability of the scaffolds in simulated body fluids was obviously improved with the increase of ZN content, in which the scaffold with 20 w% ZN (C20) possessed excellent apatite-mineralization ability. Moreover, the degradability of the scaffolds was significantly enhanced with the increase of ZN content in the scaffolds. The degradation of ZN produced acidic products that could neutralize the alkaline products from the degradation of n-MS, which avoid the increase of pH value in degradable solution. Furthermore, the MC3T3-E1 cells responses (e.g. proliferation and differentiation, etc.) to the scaffolds were significantly promoted with the increase of ZN content. The in vivo osteogenesis of the scaffolds implanted the femur defects of rabbits was investigated by micro-CT and histological analysis. The results demonstrated that the new bone formation was significantly enhanced with the increase of ZN content, in which the C20 scaffold induced the highest new bone tissues, indicating excellent osteogenesis. The results suggested that the ZN in the ternary composite scaffolds played key roles in assisting bone regeneration in vivo. Zein regulating apatite mineralization, degradability, cells responses and osteogenesis of 3D-printed scaffold of n-MS/ZN/PCL ternary composite.![]()
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Affiliation(s)
- Jiangying Ru
- Department of Orthopaedics
- The Affiliated Hospital of Yangzhou University
- Yangzhou University
- Yangzhou 225009
- China
| | - Qiang Wei
- Department of Orthopaedics
- Changhai Hospital
- Second Military Medical University
- Shanghai 200433
- China
| | - Lianqing Yang
- Department of Orthopaedics
- Changhai Hospital
- Second Military Medical University
- Shanghai 200433
- China
| | - Jing Qin
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Liangchen Tang
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Jie Wei
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Lieping Guo
- Department of Oncology
- Shanghai Eastern Hepatobiliary Surgery Hospital
- Shanghai
- China
| | - Yunfei Niu
- Department of Orthopaedics
- Changhai Hospital
- Second Military Medical University
- Shanghai 200433
- China
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