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Dziadek M, Dziadek K, Checinska K, Zagrajczuk B, Cholewa-Kowalska K. Bioactive Glasses Modulate Anticancer Activity and Other Polyphenol-Related Properties of Polyphenol-Loaded PCL/Bioactive Glass Composites. ACS APPLIED MATERIALS & INTERFACES 2024; 16:24261-24273. [PMID: 38709741 PMCID: PMC11103658 DOI: 10.1021/acsami.4c02418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/08/2024]
Abstract
In this work, bioactive glass (BG) particles obtained by three different methods (melt-quenching, sol-gel, and sol-gel-EISA) were used as modifiers of polyphenol-loaded PCL-based composites. The composites were loaded with polyphenolic compounds (PPh) extracted from sage (Salvia officinalis L.). It was hypothesized that BG particles, due to their different textural properties (porosity, surface area) and surface chemistry (content of silanol groups), would act as an agent to control the release of polyphenols from PCL/BG composite films and other significant properties associated with and affected by the presence of PPh. The polyphenols improved the hydrophilicity, apatite-forming ability, and mechanical properties of the composites and provided antioxidant and anticancer activity. As the BG particles had different polyphenol-binding capacities, they modulated the kinetics of polyphenol release from the composites and the aforementioned properties to a great extent. Importantly, the PPh-loaded materials exhibited multifaceted and selective anticancer activity, including ROS-mediated cell cycle arrest and apoptosis of osteosarcoma (OS) cells (Saos-2) via Cdk2-, GADD45G-, and caspase-3/7-dependent pathways. The materials showed a cytotoxic and antiproliferative effect on cancerous osteoblasts but not on normal human osteoblasts. These results suggest that the composites have great potential as biomaterials for treating bone defects, particularly following surgical removal of OS tumors.
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Affiliation(s)
- Michal Dziadek
- Faculty
of Materials Science and Ceramics, Department of Glass Technology
and Amorphous Coatings, AGH University of
Krakow, 30 Mickiewicza
Ave., 30-059 Krakow, Poland
| | - Kinga Dziadek
- Faculty
of Food Technology, Department of Human Nutrition and Dietetics, University of Agriculture in Krakow, 122 Balicka St., 30-149 Krakow, Poland
| | - Kamila Checinska
- Faculty
of Materials Science and Ceramics, Department of Glass Technology
and Amorphous Coatings, AGH University of
Krakow, 30 Mickiewicza
Ave., 30-059 Krakow, Poland
| | - Barbara Zagrajczuk
- Faculty
of Materials Science and Ceramics, Department of Glass Technology
and Amorphous Coatings, AGH University of
Krakow, 30 Mickiewicza
Ave., 30-059 Krakow, Poland
| | - Katarzyna Cholewa-Kowalska
- Faculty
of Materials Science and Ceramics, Department of Glass Technology
and Amorphous Coatings, AGH University of
Krakow, 30 Mickiewicza
Ave., 30-059 Krakow, Poland
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Zhang M, Yao A, Ai F, Lin J, Fu Q, Wang D. Cobalt-containing borate bioactive glass fibers for treatment of diabetic wound. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2023; 34:42. [PMID: 37530851 PMCID: PMC10397116 DOI: 10.1007/s10856-023-06741-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 07/10/2023] [Indexed: 08/03/2023]
Abstract
Impaired angiogenesis is one of the predominant reasons for non-healing diabetic wounds. Cobalt is well known for its capacity to induce angiogenesis by stabilizing hypoxia-inducible factor-1α (HIF-1α) and subsequently inducing the production of vascular endothelial growth factor (VEGF). In this study, Co-containing borate bioactive glasses and their derived fibers were fabricated by partially replacing CaO in 1393B3 borate glass with CoO. Fourier transform infrared (FTIR) spectroscopy and nuclear magnetic resonance (NMR) analyses were performed to characterize the effect of Co incorporation on the glass structure, and the results showed that the substitution promoted the transformation of [BO3] into [BO4] units, which endow the glass with higher chemical durability and lower reaction rate with the simulated body fluid (SBF), thereby achieving sustained and controlled Co2+ ion release. In vitro biological assays were performed to assess the angiogenic potential of the Co-containing borate glass fibers. It was found that the released Co2+ ion significantly enhanced the proliferation, migration and tube formation of the Human Umbilical Vein Endothelial Cells (HUVECs) by upregulating the expression of angiogenesis-related proteins such as HIF-1α and VEGF. Finally. In vivo results demonstrated that the Co-containing fibers accelerated full-thickness skin wound healing in streptozotocin (STZ)-induced diabetic rat model by promoting angiogenesis and re-epithelialization.
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Affiliation(s)
- Minhui Zhang
- School of Materials Science and Engineering, Tongji University, 200092, Shanghai, China
| | - Aihua Yao
- School of Materials Science and Engineering, Tongji University, 200092, Shanghai, China
- Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, 200092, Shanghai, China
| | - Fanrong Ai
- School of Mechatronics Engineering, Nanchang University, 330031, Nanchang, China
| | - Jian Lin
- School of Materials Science and Engineering, Tongji University, 200092, Shanghai, China.
- Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, 200092, Shanghai, China.
| | - Qingge Fu
- Department of Orthopedic trauma, Changhai Hospital, Second Military Medical University, 200433, Shanghai, China.
| | - Deping Wang
- School of Materials Science and Engineering, Tongji University, 200092, Shanghai, China
- Key Laboratory of Advanced Civil Engineering Materials, Ministry of Education, 200092, Shanghai, China
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3
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Baino F, Montazerian M, Verné E. Cobalt-Doped Bioactive Glasses for Biomedical Applications: A Review. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4994. [PMID: 37512268 PMCID: PMC10382018 DOI: 10.3390/ma16144994] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/08/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
Improving angiogenesis is the key to the success of most regenerative medicine approaches. However, how and to which extent this may be performed is still a challenge. In this regard, cobalt (Co)-doped bioactive glasses show promise being able to combine the traditional bioactivity of these materials (especially bone-bonding and osteo-stimulatory properties) with the pro-angiogenic effect associated with the release of cobalt. Although the use and local delivery of Co2+ ions into the body have raised some concerns about the possible toxic effects on living cells and tissues, important biological improvements have been highlighted both in vitro and in vivo. This review aims at providing a comprehensive overview of Co-releasing glasses, which find biomedical applications as various products, including micro- and nanoparticles, composites in combination with biocompatible polymers, fibers and porous scaffolds. Therapeutic applications in the field of bone repair, wound healing and cancer treatment are discussed in the light of existing experimental evidence along with the open issues ahead.
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Affiliation(s)
- Francesco Baino
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
| | - Maziar Montazerian
- Northeastern Laboratory for Evaluation and Development of Biomaterial (CERTBIO), Federal University of Campina Grande, Campina Grande 58429-900, PB, Brazil
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, State College, PA 16801, USA
| | - Enrica Verné
- Institute of Materials Physics and Engineering, Department of Applied Science and Technology, Politecnico di Torino, 10129 Torino, Italy
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Pantulap U, Arango-Ospina M, Boccaccini AR. Bioactive glasses incorporating less-common ions to improve biological and physical properties. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2021; 33:3. [PMID: 34940923 PMCID: PMC8702415 DOI: 10.1007/s10856-021-06626-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/07/2021] [Indexed: 05/29/2023]
Abstract
Bioactive glasses (BGs) have been a focus of research for over five decades for several biomedical applications. Although their use in bone substitution and bone tissue regeneration has gained important attention, recent developments have also seen the expansion of BG applications to the field of soft tissue engineering. Hard and soft tissue repair therapies can benefit from the biological activity of metallic ions released from BGs. These metallic ions are incorporated in the BG network not only for their biological therapeutic effects but also in many cases for influencing the structure and processability of the glass and to impart extra functional properties. The "classical" elements in silicate BG compositions are silicon (Si), phosphorous (P), calcium (Ca), sodium (Na), and potassium (K). In addition, other well-recognized biologically active ions have been incorporated in BGs to provide osteogenic, angiogenic, anti-inflammatory, and antibacterial effects such as zinc (Zn), magnesium (Mg), silver (Ag), strontium (Sr), gallium (Ga), fluorine (F), iron (Fe), cobalt (Co), boron (B), lithium (Li), titanium (Ti), and copper (Cu). More recently, rare earth and other elements considered less common or, some of them, even "exotic" for biomedical applications, have found room as doping elements in BGs to enhance their biological and physical properties. For example, barium (Ba), bismuth (Bi), chlorine (Cl), chromium (Cr), dysprosium (Dy), europium (Eu), gadolinium (Gd), ytterbium (Yb), thulium (Tm), germanium (Ge), gold (Au), holmium (Ho), iodine (I), lanthanum (La), manganese (Mn), molybdenum (Mo), nickel (Ni), niobium (Nb), nitrogen (N), palladium (Pd), rubidium (Rb), samarium (Sm), selenium (Se), tantalum (Ta), tellurium (Te), terbium (Tb), erbium (Er), tin (Sn), tungsten (W), vanadium (V), yttrium (Y) as well as zirconium (Zr) have been included in BGs. These ions have been found to be particularly interesting for enhancing the biological performance of doped BGs in novel compositions for tissue repair (both hard and soft tissue) and for providing, in some cases, extra functionalities to the BG, for example fluorescence, luminescence, radiation shielding, anti-inflammatory, and antibacterial properties. This review summarizes the influence of incorporating such less-common elements in BGs with focus on tissue engineering applications, usually exploiting the bioactivity of the BG in combination with other functional properties imparted by the presence of the added elements.
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Affiliation(s)
- Usanee Pantulap
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
| | - Marcela Arango-Ospina
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058, Erlangen, Germany
| | - Aldo R Boccaccini
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058, Erlangen, Germany.
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Solanki AK, Lali FV, Autefage H, Agarwal S, Nommeots-Nomm A, Metcalfe AD, Stevens MM, Jones JR. Bioactive glasses and electrospun composites that release cobalt to stimulate the HIF pathway for wound healing applications. Biomater Res 2021; 25:1. [PMID: 33451366 PMCID: PMC7811269 DOI: 10.1186/s40824-020-00202-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 12/14/2020] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND Bioactive glasses are traditionally associated with bonding to bone through a hydroxycarbonate apatite (HCA) surface layer but the release of active ions is more important for bone regeneration. They are now being used to deliver ions for soft tissue applications, particularly wound healing. Cobalt is known to simulate hypoxia and provoke angiogenesis. The aim here was to develop new bioactive glass compositions designed to be scaffold materials to locally deliver pro-angiogenic cobalt ions, at a controlled rate, without forming an HCA layer, for wound healing applications. METHODS New melt-derived bioactive glass compositions were designed that had the same network connectivity (mean number of bridging covalent bonds between silica tetrahedra), and therefore similar biodegradation rate, as the original 45S5 Bioglass. The amount of magnesium and cobalt in the glass was varied, with the aim of reducing or removing calcium and phosphate from the compositions. Electrospun poly(ε-caprolactone)/bioactive glass composites were also produced. Glasses were tested for ion release in dissolution studies and their influence on Hypoxia-Inducible Factor 1-alpha (HIF-1α) and expression of Vascular Endothelial Growth Factor (VEGF) from fibroblast cells was investigated. RESULTS Dissolution tests showed the silica rich layer differed depending on the amount of MgO in the glass, which influenced the delivery of cobalt. The electrospun composites delivered a more sustained ion release relative to glass particles alone. Exposing fibroblasts to conditioned media from these composites did not cause a detrimental effect on metabolic activity but glasses containing cobalt did stabilise HIF-1α and provoked a significantly higher expression of VEGF (not seen in Co-free controls). CONCLUSIONS The composite fibres containing new bioactive glass compositions delivered cobalt ions at a sustained rate, which could be mediated by the magnesium content of the glass. The dissolution products stabilised HIF-1α and provoked a significantly higher expression of VEGF, suggesting the composites activated the HIF pathway to stimulate angiogenesis.
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Affiliation(s)
- Anu K Solanki
- Department of Materials, Imperial College London, South Kensington, London, SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, South Kensington, London, SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Ferdinand V Lali
- The Griffin Institute, Northwick Park & St Mark's Hospitals Campus, Watford Road, Harrow, HA1 3UJ, UK
| | - Hélène Autefage
- Department of Materials, Imperial College London, South Kensington, London, SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, South Kensington, London, SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Shweta Agarwal
- Department of Materials, Imperial College London, South Kensington, London, SW7 2AZ, UK
- Institute of Biomedical Engineering, Imperial College London, South Kensington, London, SW7 2AZ, UK
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
| | - Amy Nommeots-Nomm
- Department of Materials, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Anthony D Metcalfe
- Healthcare Technologies Institute, School of Chemical Engineering, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
| | - Molly M Stevens
- Department of Materials, Imperial College London, South Kensington, London, SW7 2AZ, UK.
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK.
| | - Julian R Jones
- Department of Materials, Imperial College London, South Kensington, London, SW7 2AZ, UK.
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Raja FNS, Worthington T, Isaacs MA, Forto Chungong L, Burke B, Addison O, Martin RA. The Antimicrobial Efficacy of Hypoxia Mimicking Cobalt Oxide Doped Phosphate-Based Glasses against Clinically Relevant Gram Positive, Gram Negative Bacteria and a Fungal Strain. ACS Biomater Sci Eng 2019; 5:283-293. [PMID: 33405859 DOI: 10.1021/acsbiomaterials.8b01045] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Bioactive phosphate glasses are of considerable interest for a range of soft and hard tissue engineering applications. The glasses are degradable and can release biologically important ions in a controlled manner. The glasses can also potentially be used as an antimicrobial delivery system. In the given study, novel cobalt-doped phosphate-based glasses, (P2O5)50(Na2O)20(CaO)30-x(CoO)x where 0 ≤ x (mol %) ≤ 10, were manufactured and characterized. As the cobalt oxide concentration increased, the rate of dissolution was observed to decrease. The antimicrobial potential of the glasses was studied using direct and indirect contact methods against both Escherichia coli (NCTC 10538) Staphylococcus aureus (ATCC 6538) and Candida albicans (ATCC 76615). The results showed strong, time dependent, and strain specific antimicrobial activity of the glasses against microorganisms when in direct contact. Antimicrobial activity (R) ≥ 2 was observed within 2 h against Escherichia coli, whereas a similar effect was achieved in 6 h against Staphylococcus aureus and Candida albicans. However, when in indirect contact, the dissolution products from the bioactive glasses failed to show an antimicrobial effect. Following direct exposure to the glasses for 7 days, osteoblast-like SAOS-2 cells showed a 5-fold increase in VEGF mRNA while THP-1 monocytic cells showed a 4-fold increase in VEGF mRNA expression when exposed to 10% CoO-doped glass compared with the cobalt free control glass. Endothelial cells stimulated with conditioned medium taken from cell cultures of THP-1 monocytes exposed to 10% CoO doped glass showed clear tubelike structure (blood vessel) formation after 4 h.
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Affiliation(s)
- Farah N S Raja
- School of Life & Health Science and Aston Research Centre for Healthy Ageing, Aston University, Aston Triangle, Birmingham, B4 7ET, United Kingdom
| | - T Worthington
- School of Life & Health Science and Aston Research Centre for Healthy Ageing, Aston University, Aston Triangle, Birmingham, B4 7ET, United Kingdom
| | - Mark A Isaacs
- Department of Chemistry, University College London, 20 Gordon Street, Kings Cross, London, WC1H 0AJ, United Kingdom
| | - Louis Forto Chungong
- School of Engineering & Applied Science and Aston Institute of Materials Research. Aston University, Aston Triangle, Birmingham, B4 7ET, United Kingdom
| | - Bernard Burke
- School of Life Sciences, Coventry University, Coventry, CV1 2DS, United Kingdom.,Biomaterials Unit, University of Birmingham School of Dentistry, Birmingham, B5 7EG, United Kingdom
| | - Owen Addison
- Biomaterials Unit, University of Birmingham School of Dentistry, Birmingham, B5 7EG, United Kingdom.,University of Alberta, School of Dentistry, Edmonton, Alberta Canada, T6G 1C9
| | - Richard A Martin
- School of Engineering & Applied Science and Aston Institute of Materials Research. Aston University, Aston Triangle, Birmingham, B4 7ET, United Kingdom
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Souza L, Lopes JH, Encarnação D, Mazali IO, Martin RA, Camilli JA, Bertran CA. Comprehensive in vitro and in vivo studies of novel melt-derived Nb-substituted 45S5 bioglass reveal its enhanced bioactive properties for bone healing. Sci Rep 2018; 8:12808. [PMID: 30143690 PMCID: PMC6109119 DOI: 10.1038/s41598-018-31114-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 08/02/2018] [Indexed: 12/15/2022] Open
Abstract
The present work presents and discusses the results of a comprehensive study on the bioactive properties of Nb-substituted silicate glass derived from 45S5 bioglass. In vitro and in vivo experiments were performed. We undertook three different types of in vitro analyses: (i) investigation of the kinetics of chemical reactivity and the bioactivity of Nb-substituted glass in simulated body fluid (SBF) by 31P MASNMR spectroscopy, (ii) determination of ionic leaching profiles in buffered solution by inductively coupled plasma optical emission spectrometry (ICP-OES), and (iii) assessment of the compatibility and osteogenic differentiation of human embryonic stem cells (hESCs) treated with dissolution products of different compositions of Nb-substituted glass. The results revealed that Nb-substituted glass is not toxic to hESCs. Moreover, adding up to 1.3 mol% of Nb2O5 to 45S5 bioglass significantly enhanced its osteogenic capacity. For the in vivo experiments, trial glass rods were implanted into circular defects in rat tibia in order to evaluate their biocompatibility and bioactivity. Results showed all Nb-containing glass was biocompatible and that the addition of 1.3 mol% of Nb2O5, replacing phosphorous, increases the osteostimulation of bioglass. Therefore, these results support the assertion that Nb-substituted glass is suitable for biomedical applications.
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Affiliation(s)
- Lucas Souza
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas - UNICAMP, 13083-862, Campinas, SP, Brazil
| | - João Henrique Lopes
- Department of Physical Chemistry, Institute of Chemistry, University of Campinas - UNICAMP, P.O. Box 6154, 13083-970, Campinas, SP, Brazil.
| | - Davi Encarnação
- Department of Physical Chemistry, Institute of Chemistry, University of Campinas - UNICAMP, P.O. Box 6154, 13083-970, Campinas, SP, Brazil
| | - Italo Odone Mazali
- Laboratory of Functional Materials, Department of Inorganic Chemistry, Institute of Chemistry, University of Campinas - UNICAMP, P.O. Box 6154, 13083-970, Campinas, SP, Brazil
| | - Richard Alan Martin
- School of Engineering & Aston Research Centre for Healthy Ageing, Aston University, B47ET, Birmingham, United Kingdom
| | - José Angelo Camilli
- Department of Structural and Functional Biology, Institute of Biology, University of Campinas - UNICAMP, 13083-862, Campinas, SP, Brazil
| | - Celso Aparecido Bertran
- Department of Physical Chemistry, Institute of Chemistry, University of Campinas - UNICAMP, P.O. Box 6154, 13083-970, Campinas, SP, Brazil
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3D-printed scaffolds with bioactive elements-induced photothermal effect for bone tumor therapy. Acta Biomater 2018; 73:531-546. [PMID: 29656075 DOI: 10.1016/j.actbio.2018.04.014] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 04/04/2018] [Accepted: 04/05/2018] [Indexed: 12/11/2022]
Abstract
For treatment of bone tumor and regeneration of bone defects, the biomaterials should possess the ability to kill tumor cells and regenerate bone defect simultaneously. To date, there are a few biomaterials possessing such dual functions, the disadvantages, however, such as long-term toxicity and degradation, restrict their application. Although bioactive elements have been incorporated into biomaterials to improve their osteogenic activity, there is no report about elements-induced functional scaffolds for photothermal tumor therapy. Herein, the elements (Cu, Fe, Mn, Co)-doped bioactive glass-ceramic (BGC) scaffolds with photothermal effect and osteogenic differentiation ability were prepared via 3D-printing method. Moreover, the photothermal anti-tumor effect and osteogenic activity of these scaffolds were systematically investigated. The prepared elements-doped scaffolds possessed excellent photothermal performance, which displayed a trend, 5Cu-BGC > 5Fe-BGC > 5Mn-BGC > 5Co-BGC, in this study. The final temperature of elements-doped scaffolds can be well controlled by altering the doping element categories, contents and laser power density. Additionally, the hyperthermia induced by 5Cu-BGC, 5Fe-BGC and 5Mn-BGC effectively killed tumor cells in vitro and inhibited tumor growth in vivo. More importantly, 5Fe-BGC and 5Mn-BGC scaffolds could promote rabbit bone mesenchymal stem cells (rBMSCs) adhesion, and the ionic products released from elements-doped scaffolds significantly stimulated the osteogenic differentiation of bone-forming cells. These results suggested that 5Fe-BGC and 5Mn-BGC scaffolds possessed promising potential for photothermal treatment of bone tumor and at the same time for stimulating bone regeneration, representing a smart strategy for the treatment of bone tumors by combining dual functional bioactive ions with tissue engineering scaffolds. STATEMENT OF SIGNIFICANCE The major innovation of this study is that we fabricated the elements (Cu, Fe, Mn, Co)-doped bioactive scaffolds via 3D printing technique and found that they possess distinct photothermal performance and osteogenic differentiation ability. To the best of our knowledge, there is no report about elements-doped scaffolds for photothermal therapy of bone tumor. This is an important research advance by combining the photothermal effect and osteogenic differentiation activity of bioactive elements in the scaffold system for potential bone tumor therapy and bone reconstruction. We optimized the elements-doped scaffolds and found the photothermal effect of elements-doped scaffolds (5Cu-BGC, 5Fe-BGC, 5Mn-BGC) could effectively kill tumor cells in vivo. The photothermal performance of elements-doped scaffolds follows a trend: 5Cu-BGC > 5Fe-BGC > 5Mn-BGC > 5Co-BGC > BGC. Compared to traditional nano-sized photothermal agents, bioactive elements-induced functional scaffolds have better biosecurity and bioactivity. Furthermore, 5Fe-BGC and 5Mn-BGC scaffolds displayed excellent bone-forming activity by stimulating the osteogenic differentiation of bone-forming cells. The major significance of the study is that the elements-doped bioactive glass-ceramics (5Fe-BGC, 5Mn-BGC) have great potential to be used as bifunctional scaffolds for photothermal tumor therapy and bone regeneration, representing a smart strategy for the treatment of bone tumors by combining dual functional bioactive ions with tissue engineering scaffolds.
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Zahid S, Shah AT, Jamal A, Chaudhry AA, Khan AS, Khan AF, Muhammad N, Rehman IU. Biological behavior of bioactive glasses and their composites. RSC Adv 2016. [DOI: 10.1039/c6ra07819b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
This review summarizes current developments in improving the biological behavior of bioactive glasse and their composites.
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Affiliation(s)
- Saba Zahid
- Interdisciplinary Research Centre in Biomedical Materials
- COMSATS Institute of Information Technology
- Lahore
- Pakistan
| | - Asma Tufail Shah
- Interdisciplinary Research Centre in Biomedical Materials
- COMSATS Institute of Information Technology
- Lahore
- Pakistan
| | - Arshad Jamal
- Interdisciplinary Research Centre in Biomedical Materials
- COMSATS Institute of Information Technology
- Lahore
- Pakistan
| | - Aqif Anwar Chaudhry
- Interdisciplinary Research Centre in Biomedical Materials
- COMSATS Institute of Information Technology
- Lahore
- Pakistan
| | - Abdul Samad Khan
- Interdisciplinary Research Centre in Biomedical Materials
- COMSATS Institute of Information Technology
- Lahore
- Pakistan
| | - Ather Farooq Khan
- Interdisciplinary Research Centre in Biomedical Materials
- COMSATS Institute of Information Technology
- Lahore
- Pakistan
| | - Nawshad Muhammad
- Interdisciplinary Research Centre in Biomedical Materials
- COMSATS Institute of Information Technology
- Lahore
- Pakistan
| | - Ihtesham ur Rehman
- Department of Material Science and Engineering
- The Kroto Research Institute
- University of Sheffield
- Sheffield S3 7HQ
- UK
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10
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Brauer DS. Bioactive glasses—structure and properties. Angew Chem Int Ed Engl 2015; 54:4160-81. [PMID: 25765017 DOI: 10.1002/anie.201405310] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 10/20/2014] [Indexed: 11/06/2022]
Abstract
Bioactive glasses were the first synthetic materials to show bonding to bone, and they are successfully used for bone regeneration. They can degrade in the body at a rate matching that of bone formation, and through a combination of apatite crystallization on their surface and ion release they stimulate bone cell proliferation, which results in the formation of new bone. Despite their excellent properties and although they have been in clinical use for nearly thirty years, their current range of clinical applications is still small. Latest research focuses on developing new compositions to address clinical needs, including glasses for treating osteoporosis, with antibacterial properties, or for the sintering of scaffolds with improved mechanical stability. This Review discusses how the glass structure controls the properties, and shows how a structure-based design may pave the way towards new bioactive glass implants for bone regeneration.
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Affiliation(s)
- Delia S Brauer
- Otto Schott Institute of Materials Research, Friedrich Schiller University Jena, Fraunhoferstrasse 6, 07743 Jena (Germany) http://www.brauergroup.uni-jena.de.
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11
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12
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Tilocca A. Atomic-scale models of early-stage alkali depletion and SiO2-rich gel formation in bioactive glasses. Phys Chem Chem Phys 2015; 17:2696-702. [DOI: 10.1039/c4cp04711g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Molecular dynamics simulations of Na+/H+-exchanged 45S5 Bioglass® reveal the co-existence of bonded and non-bonded hydroxyls, suggesting a direct mechanism for forming a silica-rich gel structure upon the initial ion exchange.
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Affiliation(s)
- Antonio Tilocca
- Department of Chemistry
- University College London
- London WC1H 0AJ
- UK
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13
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Pickup D, Moss R, Newport R. NXFit: a program for simultaneously fitting X-ray and neutron diffraction pair-distribution functions to provide optimized structural parameters. J Appl Crystallogr 2014. [DOI: 10.1107/s160057671401824x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
NXFitis a program for obtaining optimized structural parameters from amorphous materials by simultaneously fitting X-ray and neutron pair-distribution functions. Partial correlation functions are generated inQspace, summed and Fourier transformed for comparison with the experimental data inrspace.NXFituses the Nelder–Mead method to vary a set of `best guess' parameters to achieve a fit to experimentally derived data. The output parameters fromNXFitare coordination number, atomic separation and disorder parameter for each atomic correlation used in the fitting process. The use ofNXFithas been demonstrated by fitting both X-ray and neutron diffraction data from two quite different amorphous materials: a melt-quenched (Na2O)0.5(P2O5)0.5glass and a (TiO2)0.18(SiO2)0.82sol–gel.
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Asif IM, Shelton RM, Cooper PR, Addison O, Martin RA. In vitro bioactivity of titanium-doped bioglass. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:1865-1873. [PMID: 24801063 DOI: 10.1007/s10856-014-5230-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Accepted: 04/21/2014] [Indexed: 06/03/2023]
Abstract
Previous studies have suggested that incorporating relatively small quantities of titanium dioxide into bioactive glasses may result in an increase in bioactivity and hydroxyapatite formation. The present work therefore investigated the in vitro bioactivity of a titanium doped bioglass and compared the results with 45S5 bioglass. Apatite formation was evaluated for bioglass and Ti-bioglass in the presence and absence of foetal calf serum. Scanning electron microscopy (SEM) images were used to evaluate the surface development and energy dispersive X-ray measurements provided information on the elemental ratios. X-ray diffraction spectra confirmed the presence of apatite formation. Cell viability was assessed for bone marrow stromal cells under direct and indirect contact conditions and cell adhesion was assessed using SEM.
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Affiliation(s)
- Imran M Asif
- Biomaterials Unit, School of Dentistry, University of Birmingham, Birmingham, UK
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15
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Tilocca A. Current challenges in atomistic simulations of glasses for biomedical applications. Phys Chem Chem Phys 2014; 16:3874-80. [DOI: 10.1039/c3cp54913e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Atomic-scale simulations of bioglasses are being used to tackle several challenging aspects, such as new structural markers of bioactivity, ion migration and nanosized samples.
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Affiliation(s)
- Antonio Tilocca
- Department of Chemistry
- University College London
- London WC1H 0AJ, UK
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