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Entezari A, Wu Q, Mirkhalaf M, Lu Z, Roohani I, Li Q, Dunstan CR, Jiang X, Zreiqat H. Unraveling the influence of channel size and shape in 3D printed ceramic scaffolds on osteogenesis. Acta Biomater 2024:S1742-7061(24)00193-4. [PMID: 38642786 DOI: 10.1016/j.actbio.2024.04.020] [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: 12/06/2023] [Revised: 03/31/2024] [Accepted: 04/11/2024] [Indexed: 04/22/2024]
Abstract
Bone has the capacity to regenerate itself for relatively small defects; however, this regenerative capacity is diminished in critical-size bone defects. The development of synthetic materials has risen as a distinct strategy to address this challenge. Effective synthetic materials to have emerged in recent years are bioceramic implants, which are biocompatible and highly bioactive. Yet nothing suitable for the repair of large bone defects has made the transition from laboratory to clinic. The clinical success of bioceramics has been shown to depend not only on the scaffold's intrinsic material properties but also on its internal porous geometry. This study aimed to systematically explore the implications of varying channel size, shape, and curvature in tissue scaffolds on in vivo bone regeneration outcomes. 3D printed bioceramic scaffolds with varying channel sizes (0.3 mm to 1.5 mm), shapes (circular vs rectangular), and curvatures (concave vs convex) were implanted in rabbit femoral defects for 8 weeks, followed by histological evaluation. We demonstrated that circular channel sizes of around 0.9 mm diameter significantly enhanced bone formation, compared to channel with diameters of 0.3 mm and 1.5 mm. Interestingly, varying channel shapes (rectangular vs circular) had no significant effect on the volume of newly formed bone. Furthermore, the present study systematically demonstrated the beneficial effect of concave surfaces on bone tissue growth in vivo, reinforcing previous in silico and in vitro findings. This study demonstrates that optimizing architectural configurations within ceramic scaffolds is crucial in enhancing bone regeneration outcomes. STATEMENT OF SIGNIFICANCE: Despite the explosion of work on developing synthetic scaffolds to repair bone defects, the amount of new bone formed by scaffolds in vivo remains suboptimal. Recent studies have illuminated the pivotal role of scaffolds' internal architecture in osteogenesis. However, these investigations have mostly remained confined to in silico and in vitro experiments. Among the in vivo studies conducted, there has been a lack of systematic analysis of individual architectural features. Herein, we utilized bioceramic 3D printing to conduct a systematic exploration of the effects of channel size, shape, and curvature on bone formation in vivo. Our results demonstrate the significant influence of channel size and curvature on in vivo outcomes. These findings provide invaluable insights into the design of more effective bone scaffolds.
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Affiliation(s)
- Ali Entezari
- School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, NSW 2007, Australia; Tissue Engineering and Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia
| | - Qianju Wu
- Department of Prosthodontics, Oral Bioengineering, and Regenerative Medicine Lab, Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai 200011, China; Stomatological Hospital of Xiamen Medical College, Xiamen Key Laboratory of Stomatological Disease Diagnosis and Treatment, Xiamen, Fujian, China
| | - Mohammad Mirkhalaf
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, 2 George St Brisbane, QLD 4000, Australia; Centre for Biomedical Technologies, Queensland University of Technology (QUT), Brisbane, QLD 4059, Australia; Centre for Materials Science, Queensland University of Technology (QUT), Brisbane, QLD 4000, Australia
| | - Zufu Lu
- Tissue Engineering and Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia
| | - Iman Roohani
- Tissue Engineering and Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia
| | - Qing Li
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Colin R Dunstan
- Tissue Engineering and Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia
| | - Xinquan Jiang
- Department of Prosthodontics, Oral Bioengineering, and Regenerative Medicine Lab, Ninth People's Hospital, Shanghai Jiao Tong University, Shanghai 200011, China.
| | - Hala Zreiqat
- Tissue Engineering and Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia.
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2
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Zhang Y, Zhang J, Lesani P, Lu Z, Zreiqat H. Osteopontin Rejuvenates Senescent Adipose-Derived Stem Cells and Restores their Bone Tissue Regenerative Function. Stem Cell Rev Rep 2024:10.1007/s12015-024-10707-5. [PMID: 38472643 DOI: 10.1007/s12015-024-10707-5] [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] [Accepted: 02/26/2024] [Indexed: 03/14/2024]
Abstract
The regenerative function of stem cells is compromised when the proportion of senescent stem cells increases with ageing advance. Therefore, combating stem cell senescence is of great importance for stem cell-based tissue engineering in the elderly, but remains largely unexplored. Osteopontin (OPN), a glycosylated phosphoprotein, is one of the key extracellular matrix molecules in bone tissue. OPN activates various signalling pathways and modulates cellular activities, including cell senescence. However, the role of OPN in stem cell senescence remains largely unknown. This study aims to investigate if OPN modulates cell senescence and bone regenerative function in human adipose-derived mesenchymal stem cells (ASCs), and to determine the underlying mechanisms. We first developed a senescent ASC model using serial passaging until passage 10 (P10), in which senescent cells were characterised by reduced proliferation and osteogenic differentiation capacity compared to P4 ASCs. The conditioned medium from P10 ASCs exhibited a diminished trophic effect on human osteoblasts (HOBs), compared to that from P4 ASCs. P10 ASCs on OPN-coated surface showed rejuvenated phenotype and enhanced osteogenic differentiation. The conditioned medium from P10 ASCs on OPN-coating improved trophic effects on HOBs. OPN regulated the morphology of senescent ASCs, transforming them from a more rounded and flattened cell shape to an elongated shape with a smaller area. These findings demonstrated the effects of OPN in restoring senescent ASCs functions, possibly through a mechanism that involves the modulation of cell morphology, indicating that OPN might hold a great potential for rejuvenating senescent stem cells and could potentially open a new venue for regenerating bone tissue in age-related diseases.
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Affiliation(s)
- Yiran Zhang
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, Faculty of Engineering and IT, The University of Sydney, Darlington, NSW, 2006, Australia
| | - Junni Zhang
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, Faculty of Engineering and IT, The University of Sydney, Darlington, NSW, 2006, Australia
| | - Pooria Lesani
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, Faculty of Engineering and IT, The University of Sydney, Darlington, NSW, 2006, Australia
| | - Zufu Lu
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, Faculty of Engineering and IT, The University of Sydney, Darlington, NSW, 2006, Australia.
| | - Hala Zreiqat
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, Faculty of Engineering and IT, The University of Sydney, Darlington, NSW, 2006, Australia.
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3
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Zhang Y, Jiang F, Zhao YC, Cho AN, Fang G, Cox CD, Zreiqat H, Lu ZF, Lu H, Ju LA. 3D spheroid-microvasculature-on-a-chip for tumor-endothelium mechanobiology interplay. Biomed Mater 2023. [PMID: 37451254 DOI: 10.1088/1748-605x/ace7a4] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
During the final stage of cancer metastasis, tumor cells embed themselves in distant capillary beds, from where they extravasate and establish secondary tumors. Recent findings underscore the pivotal roles of blood/lymphatic flow and shear stress in this intricate tumor extravasation process. Despite the increasing evidence, there is a dearth of systematic and biomechanical methodologies that accurately mimic intricate 3D microtissue interactions within a controlled hydrodynamic microenvironment. Addressing this gap, we introduce an easy-to-operate 3D Spheroid-Microvasculature-On-A-Chip (SMAC) model. Operating under both static and regulated flow conditions, the SMAC model facilitates the replication of the biomechanical interplay between heterogeneous tumor spheroids and endothelium in a quantitative manner. Serving as an in vitro model for metastasis mechanobiology, our model unveils the phenomena of 3D spheroid-induced endothelial compression and cell-cell junction degradation during tumor migration and expansion. Furthermore, we investigated the influence of shear stress on endothelial orientation, polarization, and tumor spheroid expansion. Collectively, our SMAC model provides a compact, cost-efficient, and adaptable platform for probing the mechanobiology of metastasis.
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Affiliation(s)
- Yingqi Zhang
- School of Biomedical Engineering, The University of Sydney, Darlington, Sydney, New South Wales, 2008, AUSTRALIA
| | - Fengtao Jiang
- School of Biomedical Engineering, The University of Sydney, Darlington, Sydney, New South Wales, 2008, AUSTRALIA
| | - Yunduo Charles Zhao
- School of Biomedical Engineering, The University of Sydney, Darlington, Sydney, New South Wales, 2008, AUSTRALIA
| | - Ann-Na Cho
- Macquarie University, Balaclava Rd, Sydney, New South Wales, 2109, AUSTRALIA
| | - Guocheng Fang
- Nanyang Technological University, 50 Nanyang Avenue, Singapore, Singapore, 639798, SINGAPORE
| | - Charles D Cox
- Victor Chang Cardiac Research Institute, 405 Liverpool St, Darlinghurst, New South Wales, 2010, AUSTRALIA
| | - Hala Zreiqat
- School of Biomedical Engineering, The University of Sydney, Darlington, Sydney, New South Wales, 2008, AUSTRALIA
| | - Zu Fu Lu
- School of Biomedical Engineering, The University of Sydney, Darlington, Sydney, New South Wales, 2008, AUSTRALIA
| | - Hongxu Lu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai, 200050, CHINA
| | - Lining Arnold Ju
- School of Biomedical Engineering, The University of Sydney, Darlington, Sydney, New South Wales, 2008, AUSTRALIA
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4
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Virdi C, Lu Z, Zreiqat H, No YJ. Theta-Gel-Reinforced Hydrogel Composites for Potential Tensile Load-Bearing Soft Tissue Repair Applications. J Funct Biomater 2023; 14:291. [PMID: 37367255 DOI: 10.3390/jfb14060291] [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: 04/30/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 06/28/2023] Open
Abstract
Engineering synthetic hydrogels for the repair and augmentation of load-bearing soft tissues with simultaneously high-water content and mechanical strength is a long-standing challenge. Prior formulations to enhance the strength have involved using chemical crosslinkers where residues remain a risk for implantation or complex processes such as freeze-casting and self-assembly, requiring specialised equipment and technical expertise to manufacture reliably. In this study, we report for the first time that the tensile strength of high-water content (>60 wt.%), biocompatible polyvinyl alcohol hydrogels can exceed 1.0 MPa through a combination of facile manufacturing strategies via physical crosslinking, mechanical drawing, post-fabrication freeze drying, and deliberate hierarchical design. It is anticipated that the findings in this paper can also be used in conjunction with other strategies to enhance the mechanical properties of hydrogel platforms in the design and construction of synthetic grafts for load-bearing soft tissues.
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Affiliation(s)
- Charenpreet Virdi
- School of Biomedical Engineering, University of Sydney, Darlington, NSW 2006, Australia
| | - Zufu Lu
- School of Biomedical Engineering, University of Sydney, Darlington, NSW 2006, Australia
| | - Hala Zreiqat
- School of Biomedical Engineering, University of Sydney, Darlington, NSW 2006, Australia
| | - Young Jung No
- School of Biomedical Engineering, University of Sydney, Darlington, NSW 2006, Australia
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Newman PLH, Yip Q, Osteil P, Anderson TA, Sun JQJ, Kempe D, Biro M, Shin J, Tam PPL, Zreiqat H. Programming of Multicellular Patterning with Mechano-Chemically Microstructured Cell Niches. Adv Sci (Weinh) 2023; 10:e2204741. [PMID: 36998105 PMCID: PMC10214222 DOI: 10.1002/advs.202204741] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 02/13/2023] [Indexed: 05/27/2023]
Abstract
Multicellular patterning of stem-cell-derived tissue models is commonly achieved via self-organizing activities triggered by exogenous morphogenetic stimuli. However, such tissue models are prone to stochastic behavior, limiting the reproducibility of cellular composition and forming non-physiological architectures. To enhance multicellular patterning in stem cell-derived tissues, a method for creating complex tissue microenvironments endowed with programmable multimodal mechano-chemical cues, including conjugated peptides, proteins, morphogens, and Young's moduli defined over a range of stiffnesses is developed. The ability of these cues to spatially guide tissue patterning processes, including mechanosensing and the biochemically driven differentiation of selected cell types, is demonstrated. By rationally designing niches, the authors engineered a bone-fat assembly from stromal mesenchyme cells and regionalized germ layer tissues from pluripotent stem cells. Through defined niche-material interactions, mechano-chemically microstructured niches enable the spatial programming of tissue patterning processes. Mechano-chemically microstructured cell niches thereby offer an entry point for enhancing the organization and composition of engineered tissues, potentiating structures that better recapitulate their native counterparts.
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Affiliation(s)
- Peter L. H. Newman
- ARC Training Centre for Innovative BioengineeringThe University of SydneySydney2006Australia
| | - Queenie Yip
- ARC Training Centre for Innovative BioengineeringThe University of SydneySydney2006Australia
| | - Pierre Osteil
- Embryology Research UnitChildren's Medical Research InstituteSydney2145Australia
- School of Medical ScienceFaculty of Medicine and HealthThe University of SydneySydney2006Australia
- Swiss Cancer Research Institute (ISREC)School of Life SciencesEcole Polytechnique Fédérale de LausanneLausanne1005Switzerland
| | - Tim A. Anderson
- ARC Training Centre for Innovative BioengineeringThe University of SydneySydney2006Australia
| | - Jane Q. J. Sun
- Embryology Research UnitChildren's Medical Research InstituteSydney2145Australia
- School of Medical ScienceFaculty of Medicine and HealthThe University of SydneySydney2006Australia
| | - Daryan Kempe
- EMBL AustraliaSingle Molecule Science NodeSchool of Medical SciencesUNSWSydney2052Australia
| | - Maté Biro
- EMBL AustraliaSingle Molecule Science NodeSchool of Medical SciencesUNSWSydney2052Australia
| | - Jae‐Won Shin
- Department of Pharmacology and Regenerative MedicineUniversity of Illinois at ChicagoChicagoIL60607USA
| | - Patrick P. L. Tam
- Embryology Research UnitChildren's Medical Research InstituteSydney2145Australia
- School of Medical ScienceFaculty of Medicine and HealthThe University of SydneySydney2006Australia
| | - Hala Zreiqat
- ARC Training Centre for Innovative BioengineeringThe University of SydneySydney2006Australia
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6
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Holmes NP, Roohani I, Entezari A, Guagliardo P, Mirkhalaf M, Lu Z, Chen YS, Yang L, Dunstan CR, Zreiqat H, Cairney JM. Discovering an unknown territory using atom probe tomography: Elemental exchange at the bioceramic scaffold/bone tissue interface. Acta Biomater 2023; 162:199-210. [PMID: 36893955 DOI: 10.1016/j.actbio.2023.02.039] [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: 11/28/2022] [Revised: 02/08/2023] [Accepted: 02/28/2023] [Indexed: 03/09/2023]
Abstract
Here we report the first atom probe study to reveal the atomic-scale composition of in vivo bone formed in a bioceramic scaffold (strontium-hardystonite-gahnite) after 12-month implantation in a large bone defect in sheep tibia. The composition of the newly formed bone tissue differs to that of mature cortical bone tissue, and elements from the degrading bioceramic implant, particularly aluminium (Al), are present in both the newly formed bone and in the original mature cortical bone tissue at the perimeter of the bioceramic implant. Atom probe tomography confirmed that the trace elements are released from the bioceramic and are actively transported into the newly formed bone. NanoSIMS mapping, as a complementary technique, confirmed the distribution of the released ions from the bioceramic into the newly formed bone tissue within the scaffold. This study demonstrated the combined benefits of atom probe and nanoSIMS in assessing nanoscopic chemical composition changes at precise locations within the tissue/biomaterial interface. Such information can assist in understanding the interaction of scaffolds with surrounding tissue, hence permitting further iterative improvements to the design and performance of biomedical implants, and ultimately reducing the risk of complications or failure while increasing the rate of tissue formation. STATEMENT OF SIGNIFICANCE: The repair of critical-sized load-bearing bone defects is a challenge, and precisely engineered bioceramic scaffold implants is an emerging potential treatment strategy. However, we still do not understand the effect of the bioceramic scaffold implants on the composition of newly formed bone in vivo and surrounding existing mature bone. This article reports an innovative route to solve this problem, the combined power of atom probe tomography and nanoSIMS is used to spatially define elemental distributions across bioceramic implant sites. We determine the nanoscopic chemical composition changes at the Sr-HT Gahnite bioceramic/bone tissue interface, and importantly, provide the first report of in vivo bone tissue chemical composition formed in a bioceramic scaffold.
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Affiliation(s)
- Natalie P Holmes
- Australian Centre for Microscopy and Microanalysis, The University of Sydney, NSW 2006, Australia; School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, NSW 2006, Australia; The University of Sydney Nano Institute, Faculty of Science, University of Sydney, Sydney, NSW 2006, Australia.
| | - Iman Roohani
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW 2006, Australia
| | - Ali Entezari
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, NSW 2007, Australia
| | - Paul Guagliardo
- Centre for Microscopy, Characterisation and Analysis, University of Western Australia, Perth, WA 6009, Australi
| | - Mohammad Mirkhalaf
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW 2006, Australia; School of Mechanical, Medical and Process Engineering, Queensland University of Technology, 2 George St Brisbane, QLD 4000, Australia
| | - Zufu Lu
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW 2006, Australia
| | - Yi-Sheng Chen
- Australian Centre for Microscopy and Microanalysis, The University of Sydney, NSW 2006, Australia; School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, NSW 2006, Australia
| | - Limei Yang
- Australian Centre for Microscopy and Microanalysis, The University of Sydney, NSW 2006, Australia; School of Civil & Environmental Engineering, University of Technology Sydney, 81 Broadway, Ultimo, NSW 2007, Australia
| | - Colin R Dunstan
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW 2006, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW 2006, Australia.
| | - Julie M Cairney
- Australian Centre for Microscopy and Microanalysis, The University of Sydney, NSW 2006, Australia; School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, NSW 2006, Australia
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7
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Lu Z, Jiang L, Lesani P, Zhang W, Li N, Luo D, Li Y, Ye Y, Bian J, Wang G, Dunstan CR, Jiang X, Zreiqat H. Nicotinamide Mononucleotide Alleviates Osteoblast Senescence Induction and Promotes Bone Healing in Osteoporotic Mice. J Gerontol A Biol Sci Med Sci 2023; 78:186-194. [PMID: 36037105 DOI: 10.1093/gerona/glac175] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Indexed: 11/13/2022] Open
Abstract
Combating the accumulated senescent cells and the healing of osteoporotic bone fractures in the older remains a significant challenge. Nicotinamide mononucleotide (NMN), a precursor of NAD+, is an excellent candidate for mitigating aging-related disorders. However, it is unknown if NMN can alleviate senescent cell induction and enhance osteoporotic bone fracture healing. Here we show that NMN treatment partially reverses the effects of tumor necrosis factor-alpha (TNF-α) on human primary osteoblasts (HOBs): senescent cell induction, diminished osteogenic differentiation ability, and intracellular NAD+ and NADH levels. Mechanistically, NMN restores the mitochondrial dysfunction in HOBs induced by TNF-α evidenced by increased mitochondrial membrane potential and reduced reactive oxidative species and mitochondrial mass. NMN also increases mitophagy activity by down-regulating P62 expression and up-regulating light chain 3B-II protein expression. In addition, the cell senescence protective effects of NMN on HOBs are mitigated by a mitophagy inhibitor (Bafilomycin A1). In vivo, NMN supplementation attenuates senescent cell induction in growth plates, partially prevents osteoporosis in an ovariectomized mouse model, and accelerates bone healing in osteoporotic mice. We conclude that NMN can be a novel and promising therapeutic candidate to enhance bone fracture healing capacity in the older.
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Affiliation(s)
- ZuFu Lu
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, the University of Sydney, Sydney, New South Wales, Australia.,ARC Training Centre for Innovative BioEngineering, the University of Sydney, Sydney, New South Wales, Australia
| | - Liting Jiang
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Pooria Lesani
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, the University of Sydney, Sydney, New South Wales, Australia.,ARC Training Centre for Innovative BioEngineering, the University of Sydney, Sydney, New South Wales, Australia
| | - WenJie Zhang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine.,National Clinical Research Center for Oral diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - Ning Li
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Danyang Luo
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Yusi Li
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Yulin Ye
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine.,College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Ji Bian
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, the University of Sydney, Sydney, New South Wales, Australia
| | - Guocheng Wang
- Research Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Science, Shenzhen, Guangdong, China
| | - Colin R Dunstan
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, the University of Sydney, Sydney, New South Wales, Australia.,ARC Training Centre for Innovative BioEngineering, the University of Sydney, Sydney, New South Wales, Australia
| | - XinQuan Jiang
- Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine.,National Clinical Research Center for Oral diseases, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, the University of Sydney, Sydney, New South Wales, Australia.,ARC Training Centre for Innovative BioEngineering, the University of Sydney, Sydney, New South Wales, Australia
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8
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Sommer KP, Krolinski A, Mirkhalaf M, Zreiqat H, Friedrich O, Vielreicher M. Protocol for Cell Colonization and Comprehensive Monitoring of Osteogenic Differentiation in 3D Scaffolds Using Biochemical Assays and Multiphoton Imaging. Int J Mol Sci 2023; 24:ijms24032999. [PMID: 36769321 PMCID: PMC9917811 DOI: 10.3390/ijms24032999] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023] Open
Abstract
The goal of bone tissue engineering is to build artificial bone tissue with properties that closely resemble human bone and thereby support the optimal integration of the constructs (biografts) into the body. The development of tissues in 3D scaffolds includes several complex steps that need to be optimized and monitored. In particular, cell-material interaction during seeding, cell proliferation and cell differentiation within the scaffold pores play a key role. In this work, we seeded two types of 3D-printed scaffolds with pre-osteoblastic MC3T3-E1 cells, proliferated and differentiated the cells, before testing and adapting different assays and imaging methods to monitor these processes. Alpha-TCP/HA (α-TCP with low calcium hydroxyapatite) and baghdadite (Ca3ZrSi2O9) scaffolds were used, which had comparable porosity (~50%) and pore sizes (~300-400 µm). Cell adhesion to both scaffolds showed ~95% seeding efficiency. Cell proliferation tests provided characteristic progression curves over time and increased values for α-TCP/HA. Transmitted light imaging displayed a homogeneous population of scaffold pores and allowed us to track their opening state for the supply of the inner scaffold regions by diffusion. Fluorescence labeling enabled us to image the arrangement and morphology of the cells within the pores. During three weeks of osteogenesis, ALP activity increased sharply in both scaffolds, but was again markedly increased in α-TCP/HA scaffolds. Multiphoton SHG and autofluorescence imaging were used to investigate the distribution, morphology, and arrangement of cells; collagen-I fiber networks; and hydroxyapatite crystals. The collagen-I networks became denser and more structured during osteogenic differentiation and appeared comparable in both scaffolds. However, imaging of the HA crystals showed a different morphology between the two scaffolds and appeared to arrange in the α-TCP/HA scaffolds along collagen-I fibers. ALP activity and SHG imaging indicated a pronounced osteo-inductive effect of baghdadite. This study describes a series of methods, in particular multiphoton imaging and complementary biochemical assays, to validly measure and track the development of bone tissue in 3D scaffolds. The results contribute to the understanding of cell colonization, growth, and differentiation, emphasizing the importance of optimal media supply of the inner scaffold regions.
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Affiliation(s)
- Kai Peter Sommer
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander University of Erlangen-Nürnberg, D-91052 Erlangen, Germany
| | - Adrian Krolinski
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander University of Erlangen-Nürnberg, D-91052 Erlangen, Germany
| | - Mohammad Mirkhalaf
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, 2 George St., Brisbane, QLD 4000, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW 2006, Australia
| | - Oliver Friedrich
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander University of Erlangen-Nürnberg, D-91052 Erlangen, Germany
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, 2 George St., Brisbane, QLD 4000, Australia
| | - Martin Vielreicher
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander University of Erlangen-Nürnberg, D-91052 Erlangen, Germany
- Correspondence:
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9
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Mirkhalaf M, Men Y, Wang R, No Y, Zreiqat H. Personalized 3D printed bone scaffolds: A review. Acta Biomater 2023; 156:110-124. [PMID: 35429670 DOI: 10.1016/j.actbio.2022.04.014] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [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: 02/04/2022] [Revised: 03/23/2022] [Accepted: 04/07/2022] [Indexed: 01/18/2023]
Abstract
3D printed bone scaffolds have the potential to replace autografts and allografts because of advantages such as unlimited supply and the ability to tailor the scaffolds' biochemical, biological and biophysical properties. Significant progress has been made over the past decade in additive manufacturing techniques to 3D print bone grafts, but challenges remain in the lack of manufacturing techniques that can recapitulate both mechanical and biological functions of native bones. The purpose of this review is to outline the recent progress and challenges of engineering an ideal synthetic bone scaffold and to provide suggestions for overcoming these challenges through bioinspiration, high-resolution 3D printing, and advanced modeling techniques. The article provides a short overview of the progress in developing the 3D printed scaffolds for the repair and regeneration of critical size bone defects. STATEMENT OF SIGNIFICANCE: Treatment of critical size bone defects is still a tremendous clinical challenge. To address this challenge, diverse sets of advanced manufacturing approaches and materials have been developed for bone tissue scaffolds. 3D printing has sparked much interest because it provides a close control over the scaffold's internal architecture and in turn its mechanical and biological properties. This article provides a critical overview of the relationships between material compositions, printing techniques, and properties of the scaffolds and discusses the current technical challenges facing their successful translation to the clinic. Bioinspiration, high-resolution printing, and advanced modeling techniques are discussed as future directions to address the current challenges.
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Affiliation(s)
- Mohammad Mirkhalaf
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW 2006, Australia; School of Mechanical, Medical and Process Engineering, Queensland University of Technology, 2 George St., Brisbane, QLD 4000 Australia.
| | - Yinghui Men
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia
| | - Rui Wang
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia
| | - Young No
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW 2006, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW 2006, Australia.
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10
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Lim KS, Zreiqat H, Gawlitta D. Special issue: Biofabrication for Orthopedic, Maxillofacial, and Dental Applications. Acta Biomater 2023; 156:1-3. [PMID: 36639170 DOI: 10.1016/j.actbio.2022.12.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Khoon S Lim
- School of Medical Sciences, The University of Sydney, NSW 2006, Australia; Department of Orthopedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch 8011, New Zealand
| | - Hala Zreiqat
- School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia
| | - Debby Gawlitta
- Department of Oral and Maxillofacial Surgery & Special Dental Care, University Medical Center Utrecht, Utrecht University, Utrecht, 3508 GA, The Netherlands; Regenerative Medicine Center Utrecht, Utrecht, 3584 CT, The Netherlands
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11
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Newsom ET, Sadeghpour A, Entezari A, Vinzons JLU, Stanford RE, Mirkhalaf M, Chon D, Dunstan CR, Zreiqat H. Design and evaluation of 3D-printed Sr-HT-Gahnite bioceramic for FDA regulatory submission: A Good Laboratory Practice sheep study. Acta Biomater 2023; 156:214-221. [PMID: 35063706 DOI: 10.1016/j.actbio.2022.01.035] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [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: 10/12/2021] [Revised: 12/13/2021] [Accepted: 01/14/2022] [Indexed: 01/18/2023]
Abstract
There is an unmet clinical need for a spinal fusion implant material that recapitulates the biological and mechanical performance of natural bone. We have developed a bioceramic, Sr-HT-Gahnite, which has been identified as a potential fusion device material. This material has the capacity to transform the future of the global interbody devices market, with follow on social, economic, and environmental benefits, rooted in its remarkable combination of mechanical properties and bioactivity. In this study, and in line with FDA requirements, the in vivo preclinical systemic biological safety of a Sr-HT-Gahnite interbody fusion device is assessed over 26 weeks in sheep under good laboratory practice (GLP). Following the in-life phase, animals are assessed for systemic biological effects via blood haematology and clinical biochemistry, strontium dosage analysis in the blood and wool, and histopathology examination of the distant organs including adrenals, brain, heart, kidneys, liver, lungs and bronchi, skeletal muscle, spinal nerves close to the implanted sites, ovaries, and draining lymph nodes. Our results show that no major changes in blood haematology or biochemistry parameters are observed, no systemic distribution of strontium to the blood and wool, and no macroscopic or histopathological abnormalities in the distant organs when Sr-HT-Gahnite was implanted, compared to baseline and control values. Together, these results indicate the systemic safety of the Sr-HT-Gahnite interbody fusion device. The results of this study extend to the systemic safety of other Sr-HT-Gahnite implanted medical devices in contact with bone or tissue, of similar size and manufactured using the described processes. STATEMENT OF SIGNIFICANCE: This paper is considered original and innovative as it is the first that thoroughly reports the systemic biological safety of previously undescribed bioceramic material, Sr-HT-Gahnite. The study has been performed under good laboratory practice, in line with FDA requirements for assessment of a new interbody fusion device, making the results broadly applicable to the translation of sheep models to the human cervical spine; and also the translation of Sr-HT-Gahnite as a biomaterial for use in additional applications. We expect this study to be of broad interest to the readership of Acta Biomaterilia. Its findings are directly applicable to researchers and clinicians working in bone repair and the development of synthetic biomaterials.
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Affiliation(s)
- Ellen T Newsom
- Allegra Orthopaedics, 18-20 Orion Rd, Lane Cove West, NSW, 2066, Australia; Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW, 2006, Australia
| | - Ameneh Sadeghpour
- Allegra Orthopaedics, 18-20 Orion Rd, Lane Cove West, NSW, 2066, Australia
| | - Ali Entezari
- Allegra Orthopaedics, 18-20 Orion Rd, Lane Cove West, NSW, 2066, Australia; Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW, 2006, Australia
| | | | - Ralph E Stanford
- Faculty of Medicine, University of New South Wales, NSW, 2052, Australia
| | - Mohammad Mirkhalaf
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW, 2006, Australia; Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW, 2006, Australia
| | - Daniel Chon
- CTL Amedica, 4550 Excel Pkwy #300, Addison, TX, 75001, United States
| | - Colin R Dunstan
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW, 2006, Australia; Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW, 2006, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW, 2006, Australia; Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW, 2006, Australia.
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12
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Abstract
Forming ceramics into rationally-designed and complex shapes without compromising their mechanical properties is a major challenge. Here, we demonstrate self-shaping of ceramics through sequential stereolithographic printing of ceramic resins into components with a heterogeneous concentration of ceramic particles, resulting in well-defined anisotropic shrinkage and, consequently, shape changes during sintering. The method is versatile and scalable and results in well-controlled shape changes in ceramics through bending, folding, twisting, and combinations of these mechanisms. The density measurements and mechanical tests show that the stresses resulting from the self-shaping mechanisms do not significantly affect the physical and mechanical properties of the ceramics. Together with the experiments, we developed a material- and scale-independent mechanical model based on linear elasticity that predicted shape changes accurately. The model can serve as a design tool to guide the selection of particle concentrations to realize the desired shapes in a broad range of ceramics.
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Affiliation(s)
- Zizhen Ding
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, 2 George St Brisbane, QLD 4000, Australia.
- Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW 2006, Australia
| | - Hala Zreiqat
- Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW 2006, Australia
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia
| | - Mohammad Mirkhalaf
- School of Mechanical, Medical and Process Engineering, Queensland University of Technology, 2 George St Brisbane, QLD 4000, Australia.
- Australian Research Council Training Centre for Innovative Bioengineering, Sydney, NSW 2006, Australia
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13
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Abstract
The tissue engineering approach for repair and regeneration has achieved significant progress over the past decades. However, challenges remain in developing strategies to solve the declined or impaired innate cell and tissue regeneration capacity that occurs with aging. Cellular senescence is a key mechanism underlying organismal aging and is responsible for the declined tissue regeneration capacity in the aging population. Therefore, to promote the diminished tissue regeneration ability in the aged population, it is critical to developing a feasible and promising strategy to target senescent cells. Recent advances in nanomaterials have revolutionized biomedical applications ranging from biosensing to bioimaging and targeted drug delivery. In this perspective, we review and discuss the nature and influences of cell-intrinsic and cell-extrinsic factors on reduced regenerative abilities through aging and how nanotechnology can be a therapeutic avenue to sense, rejuvenate, and eliminate senescent cells, thereby improving the tissue regeneration capacity in the aging population.
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Affiliation(s)
- ZuFu Lu
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney New South Wales 2006, Australia
| | - Gurvinder Singh
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney New South Wales 2006, Australia
| | - Pooria Lesani
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney New South Wales 2006, Australia
| | - Hala Zreiqat
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney New South Wales 2006, Australia
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14
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Roohani I, No YJ, Zuo B, Xiang SD, Lu Z, Liu H, Plebanski M, Zreiqat H. Low-Temperature Synthesis of Hollow β-Tricalcium Phosphate Particles for Bone Tissue Engineering Applications. ACS Biomater Sci Eng 2022; 8:1806-1815. [PMID: 35405073 DOI: 10.1021/acsbiomaterials.1c01018] [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] [Indexed: 11/29/2022]
Abstract
β-Tricalcium phosphate (β-TCP) has been extensively used in bone tissue engineering in the form of scaffolds, granules, or as reinforcing phase in organic matrices. Solid-state reaction route at high temperatures (>1000 °C) is the most widely used method for the preparation of β-TCP. The high-temperature synthesis, however, results in the formation of hard agglomerates and fused particles which necessitates postprocessing steps such as milling and sieving operations. This, inadvertently, could lead to introducing unwanted trace elements, promoting particle shape irregularity as well as compromising the biodegradability and bioactivity of β-TCP because of the solid microstructure of particles. In this study, we introduce a one-pot wet-chemical method at low temperatures (between 160 and 170 °C) to synthesize hollow β-TCP (hβ-TCP) submicron particles of an average size of 300 nm with a uniform rhombohedral shape. We assessed the cytocompatibility of the hβ-TCP using primary human osteoblasts (HOB), adipose-derived stem cells (ADSC), and antigen-presenting cells (APCs). We demonstrate the bioactivity of the hβ-TCP when cultured with HOB, ADSC, and APCs at a range of particle concentrations (up to 1000 μg/mL) for up to 7 days. hβ-TCP significantly enhances osteogenic differentiation of ADSC without the addition of osteogenic supplements. These findings offer a new type of β-TCP particles prepared at low temperatures, which present various opportunities for developing β-TCP based biomaterials.
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Affiliation(s)
- Iman Roohani
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, New South Wales 2006, Australia.,School of Biomedical Engineering, University of Sydney, Sydney, New South Wales 2006, Australia.,School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Young Jung No
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, New South Wales 2006, Australia.,School of Biomedical Engineering, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Betty Zuo
- School of Biomedical Engineering, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Sue D Xiang
- Department of Immunology and Pathology, Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria 3052, Australia
| | - Zufu Lu
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, New South Wales 2006, Australia.,School of Biomedical Engineering, University of Sydney, Sydney, New South Wales 2006, Australia
| | - Hongwei Liu
- Australian Centre for Microscopy and Microanalysis, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Magdalena Plebanski
- Department of Immunology and Pathology, Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, Victoria 3052, Australia.,School of Health and Biomedical Sciences, RMIT University, Bundoora, Melbourne, Victoria 3084, Australia
| | - Hala Zreiqat
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, New South Wales 2006, Australia.,School of Biomedical Engineering, University of Sydney, Sydney, New South Wales 2006, Australia
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15
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Abstract
Bioprinting is a promising fabrication technique aimed at developing biologically functional, tissue-like constructs for various biomedical applications. Among the different bioprinting approaches, vat polymerization-based techniques offer the highest feature resolution compared to more commonly used extrusion-based methods and therefore have greater potential to be utilized for printing complex hierarchical tissue architectures. Although significant efforts have been directed toward harnessing digital light processing techniques for high-resolution bioprinting, the use of stereolithography (SLA) setups for producing distinct hydrogel filaments smaller than 20 μm has received less attention. Improving the bioprinting resolution is still a technical challenge that must consider both the practical limitations of the bioprinter apparatus and the formulation of the cytocompatible bioresin. In this study, we developed a novel bioresin compatible with SLA and capable of printing high-resolution features. This resin, composed of a biosynthetic polypeptide poly(l-glutamic acid) functionalized with tyramine moieties (PLGA-Tyr), was crosslinked using a visible-light photoinitiator system. Varying concentrations of PLGA-Tyr and the co-photoinitiator were evaluated for the hydrogel system's gelation ability, swelling characteristics, degradation profiles, mechanical properties, and cell viability post-encapsulation. This study introduces a custom-built, cost-effective, visible-light SLA bioprinting system named the "MicroNC". Using the newly developed visible-light bioresin, we demonstrated for the first time the ability to fabricate hydrogel scaffolds with well-resolved filaments (less than 8 μm in width) capable of supporting cell viability and proliferation and directing cellular morphology at the single-cell level for up to 14 days. Overall, these experiments have underscored the exciting potential of using the visible-light-photoinitiated PLGA-Tyr material system for developing physiologically relevant in vitro hydrogel scaffolds with feature resolutions comparable to the dimensions of individual human cells for a wide range of biomedical applications.
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Affiliation(s)
- Christina Marie Viray
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Benjamin van Magill
- School of Aerospace, Mechanical, and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Hala Zreiqat
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Yogambha Ramaswamy
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia.,Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
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16
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No YJ, Nguyen T, Lu Z, Mirkhalaf M, Fei F, Foley M, Zreiqat H. Development of a bioactive and radiopaque bismuth doped baghdadite ceramic for bone tissue engineering. Bone 2021; 153:116147. [PMID: 34389477 DOI: 10.1016/j.bone.2021.116147] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/27/2021] [Accepted: 08/06/2021] [Indexed: 11/23/2022]
Abstract
Baghdadite (Ca3ZrSi2O9, BAG), is a Zr-doped calcium silicate that has outstanding bioactivity both in vitro and in vivo. Bioceramic scaffolds should be sufficiently radiopaque to be distinguishable in vivo from surrounding bone structures. To enhance the radiopacity of BAG, this study investigated the effect of incorporating bismuth ions into its crystalline structure (BixCa3-xZrSi2O9, x = 0, 0.1, 0.2, 0.5; BAG, Bi0.1-BAG, Bi0.2-BAG, Bi0.5-BAG, respectively). Monophasic baghdadite was retained after bismuth ion incorporation up to x = 0.2 at calcination temperatures of 1350 °C. When pressed and sintered, energy dispersive x-ray spectroscopy showed that BAG and Bi0.1-BAG retained crystalline homogeneity, but Bi0.2-BAG formed zirconium-rich crystalline regions. BAG, Bi0.1-BAG and Bi0.2-BAG exhibited non-degradation after 56 days of immersion in culture medium. Bi0.1-BAG exhibited the lowest change in culture medium pH (+0.0), compared to BAG (+0.7) and Bi0.2-BAG (+0.2) after 56 days of culture media immersion. Bi0.1-BAG exhibited similar strength and modulus to BAG (σ: 200-290 MPa; E: 4-5 GPa), and significantly higher compressive strength and modulus versus Bi0.2-BAG (σ: 150-200 MPa; E: 3.5-4 GPa) across 56 days of aqueous immersion. In vitro studies using primary human bone derived cells (HOBs) demonstrated a significant increase in HOBs proliferation when cultured on Bi0.1-BAG for seven days compared to BAG and Bi0.2-BAG. Importantly, Bi0.1-BAG showed increased radiopacity by ~33%, when compared to BAG, and by ~115% when compared to biphasic calcium phosphate. The properties of Bi0.1-BAG show promise for its use as a bioactive ceramic with sufficient radiopacity for treatment of bone defects.
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Affiliation(s)
- Young Jung No
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; ARC Training Centre for Innovative BioEngineering, The University of Sydney, NSW 2006, Australia.
| | - Tien Nguyen
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; ARC Training Centre for Innovative BioEngineering, The University of Sydney, NSW 2006, Australia
| | - Zufu Lu
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; ARC Training Centre for Innovative BioEngineering, The University of Sydney, NSW 2006, Australia
| | - Mohammad Mirkhalaf
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; ARC Training Centre for Innovative BioEngineering, The University of Sydney, NSW 2006, Australia
| | - Frank Fei
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; ARC Training Centre for Innovative BioEngineering, The University of Sydney, NSW 2006, Australia
| | - Matthew Foley
- Australian Centre for Microscopy & Microanalysis, The University of Sydney, NSW 2006, Australia
| | - Hala Zreiqat
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, NSW 2006, Australia; ARC Training Centre for Innovative BioEngineering, The University of Sydney, NSW 2006, Australia.
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17
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Wu C, Entezari A, Zheng K, Fang J, Zreiqat H, Steven GP, Swain MV, Li Q. A machine learning-based multiscale model to predict bone formation in scaffolds. Nat Comput Sci 2021; 1:532-541. [PMID: 38217252 DOI: 10.1038/s43588-021-00115-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 07/19/2021] [Indexed: 01/15/2024]
Abstract
Computational modeling methods combined with non-invasive imaging technologies have exhibited great potential and unique opportunities to model new bone formation in scaffold tissue engineering, offering an effective alternate and viable complement to laborious and time-consuming in vivo studies. However, existing numerical approaches are still highly demanding computationally in such multiscale problems. To tackle this challenge, we propose a machine learning (ML)-based approach to predict bone ingrowth outcomes in bulk tissue scaffolds. The proposed in silico procedure is developed by correlating with a dedicated longitudinal (12-month) animal study on scaffold treatment of a major segmental defect in sheep tibia. Comparison of the ML-based time-dependent prediction of bone ingrowth with the conventional multilevel finite element (FE2) model demonstrates satisfactory accuracy and efficiency. The ML-based modeling approach provides an effective means for predicting in vivo bone tissue regeneration in a subject-specific scaffolding system.
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Affiliation(s)
- Chi Wu
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, Australia
| | - Ali Entezari
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales, Australia
| | - Keke Zheng
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, Australia
| | - Jianguang Fang
- School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Hala Zreiqat
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales, Australia
| | - Grant P Steven
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, Australia
| | - Michael V Swain
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, Australia
| | - Qing Li
- School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales, Australia.
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18
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Poon K, Lu Z, De Deene Y, Ramaswamy Y, Zreiqat H, Singh G. Tuneable manganese oxide nanoparticle based theranostic agents for potential diagnosis and drug delivery. Nanoscale Adv 2021; 3:4052-4061. [PMID: 36132835 PMCID: PMC9419237 DOI: 10.1039/d0na00991a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 06/04/2021] [Indexed: 06/16/2023]
Abstract
Among various magnetic nanoparticles, manganese oxide nanoparticles are considered as established T 1 magnetic resonance imaging (MRI) contrast agents for preclinical research. The implications of their degradation properties and use as therapeutic carriers in drug delivery systems have not been explored. In addition, how the chemical composition and size of manganese oxide nanoparticles, as well as the surrounding environment, influence their degradation and MRI contrast properties (T 1 vs. T 2) have not been studied in great detail. A fundamental understanding of their characteristic properties, such as degradation, is highly desirable for developing simultaneous diagnosis and therapeutic solutions. Here, we demonstrate how the precursor type and reaction environment affect the size and chemical composition of manganese oxide nanoparticles and evaluate their influence on the nanoparticle degradability and release of the drug l-3,4-dihydroxyphenylalanine (l-dopa). The results show that the degradation rate (and the associated release of drug l-dopa molecules) of manganese oxide nanoparticles depends on their size, composition and the surrounding environment (aqueous or biometric fluid). The dependence of MRI relaxivities of manganese oxide nanoparticles on the size, chemical composition and nanoparticle degradation in water is also established. A preliminary cell viability study reveals the cytocompatible properties of l-dopa functionalized manganese oxide nanoparticles. Overall, this work provides new insights into smartly designed manganese oxide nanoparticles with multitasking capabilities to target bioimaging and therapeutic applications.
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Affiliation(s)
- Kingsley Poon
- ARC Centre for Innovative BioEngineering, Tissue Engineering and Biomaterials Research Unit, Sydney Nano Institute, School of Biomedical Engineering, The University of Sydney NSW 2008 Australia
| | - Zufu Lu
- ARC Centre for Innovative BioEngineering, Tissue Engineering and Biomaterials Research Unit, Sydney Nano Institute, School of Biomedical Engineering, The University of Sydney NSW 2008 Australia
| | - Yves De Deene
- Department of Engineering, The Biomedical Engineering Laboratory, Macquarie University Sydney 2109 Australia
| | - Yogambha Ramaswamy
- ARC Centre for Innovative BioEngineering, Tissue Engineering and Biomaterials Research Unit, Sydney Nano Institute, School of Biomedical Engineering, The University of Sydney NSW 2008 Australia
| | - Hala Zreiqat
- ARC Centre for Innovative BioEngineering, Tissue Engineering and Biomaterials Research Unit, Sydney Nano Institute, School of Biomedical Engineering, The University of Sydney NSW 2008 Australia
| | - Gurvinder Singh
- ARC Centre for Innovative BioEngineering, Tissue Engineering and Biomaterials Research Unit, Sydney Nano Institute, School of Biomedical Engineering, The University of Sydney NSW 2008 Australia
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19
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Lesani P, Lu Z, Singh G, Mursi M, Mirkhalaf M, New EJ, Zreiqat H. Influence of carbon dot synthetic parameters on photophysical and biological properties. Nanoscale 2021; 13:11138-11149. [PMID: 34132711 DOI: 10.1039/d1nr01389k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Recently, carbon dots (CDs) have been widely investigated for biological applications in imaging. One-step hydrothermal synthesis is considered to be one of the most promising methods for the synthesis of CDs, due to its simple and rapid manipulation, flexible selection of ingredients, environmentally friendly conditions, and low-cost. A number of synthetic and post-synthetic parameters, including solvent, heating time, dopant quantity, and particle size distribution, play a crucial role in controlling the size and surface structure of CDs, which ultimately have influence on their photophysical and biological behavior. Despite the crucial role of each of these parameters in defining the yield and nature of synthesized CDs, they have not previously been rigorously optimized, particularly with respect to desired biological applications. Herein, we report our comprehensive optimization of the parameters employed for the hydrothermal synthesis of CDs to gain a better understanding of the effect of these parameters on optical properties, cytotoxicity, and cellular uptake efficiency. Furthermore, this work will open up new pathways toward the design of CDs with physiochemical properties tailored for specific biomedical applications such as bioimaging.
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Affiliation(s)
- Pooria Lesani
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, the University of Sydney, NSW 2006, Australia.
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20
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Lu Z, Zhang W, No YJ, Lu Y, Mirkhalaf Valashani SM, Rollet P, Jiang L, Ramaswamy Y, Dunstan CR, Jiang X, Zreiqat H. Baghdadite Ceramics Prevent Senescence in Human Osteoblasts and Promote Bone Regeneration in Aged Rats. ACS Biomater Sci Eng 2020; 6:6874-6885. [PMID: 33320606 DOI: 10.1021/acsbiomaterials.0c01120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Bone fractures and critical-sized bone defects present significant health threats for the elderly who have limited capacity for regeneration due to the presence of functionally compromised senescent cells. A wide range of synthetic materials has been developed to promote the regeneration of critical-sized bone defects, but it is largely unknown if a synthetic biomaterial (scaffold) can modulate cellular senescence and improve bone regeneration in aged scenarios. The current study investigates the interaction of Baghdadite (Ca3ZrSi2O9) ceramic scaffolds with senescent human primary osteoblast-like cells (HOBs) and its bone regeneration capacity in aged rats. A senescent HOB model was established by repeatedly passaging HOBs till passage 7 (P7). Compared to the clinically used hydroxyapatite/tricalcium phosphate (HA/TCP), Baghdadite prevented senescence induction in P7 HOBs and markedly negated the paracrine effect of P7 HOB secretomes that mediated the up-regulations of cellular senescence-associated gene expression levels in P2 HOBs. We further demonstrated that conditioned media extracted from Baghdadite corrected the dysfunctional mitochondria in P7 HOBs. In vivo, the bone regeneration capacity was enhanced when 3D printed Baghdadite scaffolds were implanted in a calvaria critical-sized bone defect model in both young and aged rats compared to HA/TCP scaffolds, but a better effect was observed in aged rats than in young rats. This study suggests that Baghdadite ceramic represents a novel and promising biomaterial approach to promote bone regeneration capacity in the elderly by providing an anti-senescent microenvironment.
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Affiliation(s)
- ZuFu Lu
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, NSW 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - WenJie Zhang
- Department of Prosthodontics, Shanghai Ninth People's Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.,National Clinical Research Center of Stomatology, Shanghai 200011, China.,Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Young Jung No
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, NSW 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Yuezhi Lu
- Department of Prosthodontics, Shanghai Ninth People's Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.,National Clinical Research Center of Stomatology, Shanghai 200011, China.,Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Seyed Mohammad Mirkhalaf Valashani
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, NSW 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Paul Rollet
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, NSW 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Liting Jiang
- Department of Prosthodontics, Shanghai Ninth People's Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.,National Clinical Research Center of Stomatology, Shanghai 200011, China.,Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Yogambha Ramaswamy
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, NSW 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - Colin R Dunstan
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, NSW 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney, NSW 2006, Australia
| | - XinQuan Jiang
- Department of Prosthodontics, Shanghai Ninth People's Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.,National Clinical Research Center of Stomatology, Shanghai 200011, China.,Oral Bioengineering and Regenerative Medicine Lab, Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai 200011, China
| | - Hala Zreiqat
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical Engineering, The University of Sydney, Sydney, NSW 2006, Australia.,ARC Training Centre for Innovative BioEngineering, The University of Sydney, Sydney, NSW 2006, Australia
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21
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Ramaswamy Y, Roohani I, No YJ, Madafiglio G, Chang F, Zhang F, Lu Z, Zreiqat H. Nature-inspired topographies on hydroxyapatite surfaces regulate stem cells behaviour. Bioact Mater 2020; 6:1107-1117. [PMID: 33102949 PMCID: PMC7569262 DOI: 10.1016/j.bioactmat.2020.10.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 07/27/2020] [Revised: 09/16/2020] [Accepted: 10/02/2020] [Indexed: 12/17/2022] Open
Abstract
Surface topography is one of the key factors in regulating interactions between materials and cells. While topographies presented to cells in vivo are non-symmetrical and in complex shapes, current fabrication techniques are limited to replicate these complex geometries. In this study, we developed a microcasting technique and successfully produced imprinted hydroxyapatite (HAp) surfaces with nature-inspired (honeycomb, pillars, and isolated islands) topographies. The in vitro biological performance of the developed non-symmetrical topographies was evaluated using adipose-derived stem cells (ADSCs). We demonstrated that ADSCs cultured on all HAp surfaces, except honeycomb patterns, presented well-defined stress fibers and expressed focal adhesion protein (paxillin) molecules. Isolated islands topographies significantly promoted osteogenic differentiation of ADSCs with increased alkaline phosphatase activity and upregulation of key osteogenic markers, compared to the other topographies and the control unmodified (flat) HAp surface. In contrast, honeycomb topographies hampered the ability of the ADSCs to proliferate and differentiate to the osteogenic lineage. This work presents a facile technique to imprint nature-derived topographies on the surface of bioceramics which opens up opportunities for the development of bioresponsive interfaces in tissue engineering and regenerative medicine.
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Affiliation(s)
- Yogambha Ramaswamy
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia.,Australian Research Centre for Innovative BioEngineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Iman Roohani
- School of Chemistry, Australian Centre for Nanomedicine, University of New South Wales, Sydney NSW, Australia
| | - Young Jung No
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia.,Australian Research Centre for Innovative BioEngineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Genevieve Madafiglio
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Frank Chang
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Furong Zhang
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Zufu Lu
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia.,Australian Research Centre for Innovative BioEngineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia.,Australian Research Centre for Innovative BioEngineering, University of Sydney, Sydney, NSW, 2006, Australia
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22
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Hong Y, Liu N, Zhou R, Zhao X, Han Y, Xia F, Cheng J, Duan M, Qian Q, Wang X, Cai W, Zreiqat H, Feng D, Xu J, Cui D. Combination Therapy Using Kartogenin-Based Chondrogenesis and Complex Polymer Scaffold for Cartilage Defect Regeneration. ACS Biomater Sci Eng 2020; 6:6276-6284. [PMID: 33449656 DOI: 10.1021/acsbiomaterials.0c00724] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Articular cartilage has a highly organized structure, responsible for supporting tremendous mechanical loads. How to repair defected articular cartilage has become a great challenge as the avascular nature of cartilage limits its regenerative ability. Aiming to facilitate chondrogenic differentiation and cartilage regeneration, we recently explored a novel combination therapy using soluble poly-l-lysine/Kartogenin (L-K) nanoparticles and a poly(lactic-co-glycolic acid) PLGA/methacrylated hyaluronic acid (PLHA) complex scaffold. The potential use for joint cartilage reconstruction was investigated through L-K nanoparticles stimulating adipose-derived stem cells (ADSCs) on PLHA scaffolding, which ultimately differentiated into cartilage in vivo. In this study, on one hand, an effective method was established for obtaining uniform L-K nanoparticles by self-assembly. They were further proved to be biocompatible to ADSCs via cytotoxicity assays in vitro and to accelerate ADSCs secreting type 2 collagen in a dose-dependent manner by immunofluorescence. On the other hand, the porous PLHA scaffold was manufactured by the combination of coprecipitation and ultraviolet (UV) cross-linking. Nanoindentation technology-verified PLHA had an appropriate stiffness close to actual cartilage tissue. Additional microscopic observation confirmed that the PLHA platform supported proliferation and chondrogenesis for ADSCs in vitro. In the presence of ADSCs, a 12-week osteochondral defect regeneration by the combination therapy showed that smooth and intact cartilage tissue successfully regenerated. Furthermore, the results of combination therapy were superior to those of phosphate-buffered saline (PBS) only, KGN, or KGN/PLHA treatment. The results of magnetic resonance imaging (MRI) and histological assessment indicated that the renascent tissue gradually regenerated while the PLHA scaffold degraded. In conclusion, we have developed a novel multidimensional combination therapy of cartilage defect repair that facilitated cartilage regeneration. This strategy has a great clinical translational potential for articular cartilage repair in the near future.
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Affiliation(s)
- Yuping Hong
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Ning Liu
- Department of Joint Surgery and Sports Medicine, Changzheng Hospital, Second Naval Military University, 415 Fengyang Road, Shanghai 200003, P. R. China
| | - Rong Zhou
- Department of Joint Surgery and Sports Medicine, Changzheng Hospital, Second Naval Military University, 415 Fengyang Road, Shanghai 200003, P. R. China
| | - Xinxin Zhao
- Department of Radiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong Univesity, 160 Pujian Road, Sahnghai 200127, P. R. China
| | - Yaguang Han
- Department of Joint Surgery and Sports Medicine, Changzheng Hospital, Second Naval Military University, 415 Fengyang Road, Shanghai 200003, P. R. China
| | - Fangfang Xia
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Jin Cheng
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Meng Duan
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
| | - Qirong Qian
- Department of Joint Surgery and Sports Medicine, Changzheng Hospital, Second Naval Military University, 415 Fengyang Road, Shanghai 200003, P. R. China
| | - Xiuying Wang
- School of Computer Science, Faculty of Engineering, University of Sydney, Sydney, NSW 2006, Australia
| | - Weidong Cai
- School of Computer Science, Faculty of Engineering, University of Sydney, Sydney, NSW 2006, Australia
| | - Hala Zreiqat
- Murray Maxwell Biomechanics Laboratory, Kolling Institute, Royal North Shore Hospital, University of Sydney, Sydney, NSW 2065, Australia
| | - Dagan Feng
- School of Computer Science, Faculty of Engineering, University of Sydney, Sydney, NSW 2006, Australia
| | - Jianrong Xu
- Department of Radiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong Univesity, 160 Pujian Road, Sahnghai 200127, P. R. China
| | - Daxiang Cui
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China
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23
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Hadden M, Mittal A, Samra J, Zreiqat H, Sahni S, Ramaswamy Y. Mechanically stressed cancer microenvironment: Role in pancreatic cancer progression. Biochim Biophys Acta Rev Cancer 2020; 1874:188418. [PMID: 32827581 DOI: 10.1016/j.bbcan.2020.188418] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [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: 04/24/2020] [Revised: 07/21/2020] [Accepted: 08/12/2020] [Indexed: 02/06/2023]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal solid malignancies in the world due to its insensitivity to current therapies and its propensity to metastases from the primary tumor mass. This is largely attributed to its complex microenvironment composed of unique stromal cell populations and extracellular matrix (ECM). The recruitment and activation of these cell populations cause an increase in deposition of ECM components, which highly influences the behavior of malignant cells through disrupted forms of signaling. As PDAC progresses from premalignant lesion to invasive carcinoma, this dynamic landscape shields the mass from immune defenses and cytotoxic intervention. This microenvironment influences an invasive cell phenotype through altered forms of mechanical signaling, capable of enacting biochemical changes within cells through activated mechanotransduction pathways. The effects of altered mechanical cues on malignant cell mechanotransduction have long remained enigmatic, particularly in PDAC, whose microenvironment significantly changes over time. A more complete and thorough understanding of PDAC's physical surroundings (microenvironment), mechanosensing proteins, and mechanical properties may help in identifying novel mechanisms that influence disease progression, and thus, provide new potential therapeutic targets.
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Affiliation(s)
- Matthew Hadden
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, NSW 2006, Australia
| | - Anubhav Mittal
- Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Australia; Kolling Institute of Medical Research, University of Sydney, Australia; Australian Pancreatic Centre, St Leonards, Sydney, Australia
| | - Jaswinder Samra
- Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Australia; Kolling Institute of Medical Research, University of Sydney, Australia; Australian Pancreatic Centre, St Leonards, Sydney, Australia
| | - Hala Zreiqat
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, NSW 2006, Australia; ARC Training Centre for Innovative Bioengineering, The University of Sydney, NSW 2006, Australia; The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia
| | - Sumit Sahni
- Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Australia; Kolling Institute of Medical Research, University of Sydney, Australia; Australian Pancreatic Centre, St Leonards, Sydney, Australia.
| | - Yogambha Ramaswamy
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, NSW 2006, Australia; The University of Sydney Nano Institute, The University of Sydney, Sydney, NSW 2006, Australia.
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24
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No YJ, Castilho M, Ramaswamy Y, Zreiqat H. Role of Biomaterials and Controlled Architecture on Tendon/Ligament Repair and Regeneration. Adv Mater 2020; 32:e1904511. [PMID: 31814177 DOI: 10.1002/adma.201904511] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [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: 07/14/2019] [Revised: 11/10/2019] [Indexed: 06/10/2023]
Abstract
Engineering synthetic scaffolds to repair and regenerate ruptured native tendon and ligament (T/L) tissues is a significant engineering challenge due to the need to satisfy both the unique biological and biomechanical properties of these tissues. Long-term clinical outcomes of synthetic scaffolds relying solely on high uniaxial tensile strength are poor with high rates of implant rupture and synovitis. Ideal biomaterials for T/L repair and regeneration need to possess the appropriate biological and biomechanical properties necessary for the successful repair and regeneration of ruptured tendon and ligament tissues.
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Affiliation(s)
- Young Jung No
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, NSW, 2006, Australia
| | - Miguel Castilho
- Department of Orthopedics, University Medical Center Utrecht, Utrecht University, Heidelberglaan 100, 3584 CX, Utrecht, The Netherlands
- Department of Biomedical Engineering, Eindhoven University of Technology, 5600 MB, Eindhoven, The Netherlands
| | - Yogambha Ramaswamy
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, NSW, 2006, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, NSW, 2006, Australia
- Radcliffe Institute for Advanced Study, Harvard University, Cambridge, MA, 02138, USA
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25
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Lesani P, Singh G, Viray CM, Ramaswamy Y, Zhu DM, Kingshott P, Lu Z, Zreiqat H. Two-Photon Dual-Emissive Carbon Dot-Based Probe: Deep-Tissue Imaging and Ultrasensitive Sensing of Intracellular Ferric Ions. ACS Appl Mater Interfaces 2020; 12:18395-18406. [PMID: 32239906 DOI: 10.1021/acsami.0c05217] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Carbon dots (CDs)-based nanoparticles have been extensively explored for biological applications in sensing and bioimaging. However, the major translational barriers to CDs for imaging and sensing applications include synthetic strategies to obtain monodisperse CDs with tunable structural, electronic, and optical properties in order to achieve high-resolution deep-tissue imaging, intracellular detection, and sensing of metal ions with high sensitivity down to nanomolar levels. Herein, we report a novel strategy to synthesize and develop a multifunctional nitrogen-doped CDs probe of different sizes using a new combination of carbon and nitrogen sources. Our results show that the structural characteristics (i.e., the surface density of emissive traps and bandgaps levels) depend on the size of the CDs, which ultimately influences their optical properties. This work also demonstrates the development of a two-photon dual-emissive fluorescent multifunctional probes (3-FCDs) by conjugating fluorescein isothiocyanate on the surface of nitrogen-doped CDs. 3-FCDs show excellent near-infrared two-photon excitation ability, single-wavelength excitation, high photostability, biocompatibility, low cytotoxicity, and good cell permeability. Using two-photon fluorescence imaging, our multifunctional probe shows excellent deep-tissue high-resolution imaging capabilities with penetration depth up to 3000 and 280 μm in hydrogel scaffold and pigskin tissue, respectively. The designed probe exhibits ultrasensitivity and specificity toward Fe3+ ions with a remarkable detection limit of 2.21 nM using two-photon excitation. In addition, we also demonstrate the use of multifunctional CDs probe for ultrasensitive exogenous and real-time endogenous sensing of Fe3+ ions and imaging in live fibroblasts with rapid response times for intracellular ferric ion detection.
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26
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Hong Y, Han Y, Wu J, Zhao X, Cheng J, Gao G, Qian Q, Wang X, Cai W, Zreiqat H, Feng D, Xu J, Cui D. Chitosan modified Fe 3O 4/KGN self-assembled nanoprobes for osteochondral MR diagnose and regeneration. Theranostics 2020; 10:5565-5577. [PMID: 32373231 PMCID: PMC7196312 DOI: 10.7150/thno.43569] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 03/27/2020] [Indexed: 01/07/2023] Open
Abstract
Chondral and osteochondral defects caused by trauma or pathological changes, commonly progress into total joint degradation, even resulting in disability. The cartilage restoration is a great challenge because of its avascularity and limited proliferative ability. Additionally, precise diagnosis using non-invasive detection techniques is challenging, which increases problems associated with chondral disease treatment. Methods: To achieve a theranostic goal, we used an integrated strategy that relies on exploiting a multifunctional nanoprobe based on chitosan-modified Fe3O4 nanoparticles, which spontaneously self-assemble with the oppositely charged small molecule growth factor, kartogenin (KGN). This nanoprobe was used to obtain distinctively brighter T2-weighted magnetic resonance (MR) imaging, allowing its use as a positive contrast agent, and could be applied to obtain accurate diagnosis and osteochondral regeneration therapy. Results: This nanoprobe was first investigated using adipose tissue-derived stem cells (ADSCs), and was found to be a novel positive contrast agent that also plays a significant role in stimulating ADSCs differentiation into chondrocytes. This self-assembled probe was not only biocompatible both in vitro and in vivo, contributing to cellular internalization, but was also used to successfully make distinction of normal/damaged tissue in T2-weighted MR imaging. This novel combination was systematically shown to be biosafe via the decrement of apparent MR signals and elimination of ferroferric oxide over a 12-week regeneration period. Conclusion: Here, we established a novel method for osteochondral disease diagnosis and reconstruction. Using the Fe3O4-CS/KGN nanoprobe, it is easy to distinguish the defect position, and it could act as a tool for dynamic observation as well as a stem cell-based therapy for directionally chondral differentiation.
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Affiliation(s)
- Yuping Hong
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, PR China
| | - Yaguang Han
- Department of Joint Surgery and Sports Medicine, Changzheng Hospital, Second Military Medical University, 415 Fengyang RD, Shanghai 200003, PR China
| | - Jun Wu
- Department of Joint Surgery and Sports Medicine, Changzheng Hospital, Second Military Medical University, 415 Fengyang RD, Shanghai 200003, PR China
| | - Xinxin Zhao
- Department of Radiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian RD, Shanghai 200127, PR China
| | - Jin Cheng
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, PR China
| | - Guo Gao
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, PR China
| | - Qirong Qian
- Department of Joint Surgery and Sports Medicine, Changzheng Hospital, Second Military Medical University, 415 Fengyang RD, Shanghai 200003, PR China
| | - Xiuying Wang
- School of Computer Science, Faculty of Engineering, University of Sydney, NSW 2006, Australia
| | - Weidong Cai
- School of Computer Science, Faculty of Engineering, University of Sydney, NSW 2006, Australia
| | - Hala Zreiqat
- Murray Maxwell Biomechanics Laboratory, Kolling Institute, Royal North Shore Hospital, University of Sydney, NSW 2065, Australia
| | - Dagan Feng
- School of Computer Science, Faculty of Engineering, University of Sydney, NSW 2006, Australia
| | - Jianrong Xu
- Department of Radiology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, 160 Pujian RD, Shanghai 200127, PR China
| | - Daxiang Cui
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Centre for Intelligent Diagnosis and Treatment Instrument, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan RD, Shanghai 200240, PR China
- Institute of Nano Biomedicine, National Engineering Center for Nanotechnology, 28 Jianchuan East RD, Shanghai 200241, PR China
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27
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No YJ, Tarafder S, Reischl B, Ramaswamy Y, Dunstan C, Friedrich O, Lee CH, Zreiqat H. High-Strength Fiber-Reinforced Composite Hydrogel Scaffolds as Biosynthetic Tendon Graft Material. ACS Biomater Sci Eng 2020; 6:1887-1898. [PMID: 33455306 DOI: 10.1021/acsbiomaterials.9b01716] [Citation(s) in RCA: 20] [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] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The development of suitable synthetic scaffolds for use as human tendon grafts to repair tendon ruptures remains a significant engineering challenge. Previous synthetic tendon grafts have demonstrated suboptimal tissue ingrowth and synovitis due to wear particles from fiber-to-fiber abrasion. In this study, we present a novel fiber-reinforced hydrogel (FRH) that mimics the hierarchical structure of the native human tendon for synthetic tendon graft material. Ultrahigh molecular weight polyethylene (UHMWPE) fibers were impregnated with either biosynthetic polyvinyl alcohol/gelatin hydrogel (FRH-PG) or with polyvinyl alcohol/gelatin + strontium-hardystonite (Sr-Ca2ZnSi2O7, Sr-HT) composite hydrogel (FRH-PGS). The scaffolds were fabricated and assessed to evaluate their suitability for tendon graft applications. The microstructure of both FRH-PG and FRH-PGS showed successful impregnation of the hydrogel component, and the tendon scaffolds exhibited equilibrium water content of ∼70 wt %, similar to the values reported for native human tendon, compared to ∼50 wt % water content retained in unmodified UHMWPE fibers. The tensile strength of FRH-PG and FRH-PGS (77.0-81.8 MPa) matched the range of human Achilles' tendon tensile strengths reported in the literature. In vitro culture of rat tendon stem cells showed cell and tissue infiltration into both FRH-PG and FRH-PGS after 2 weeks, and the presence of Sr-HT ceramic particles influenced the expression of tenogenic markers. On the other hand, FRH-PG supported the proliferation of murine C2C12 myoblasts, whereas FRH-PGS seemingly did not support it under static culture conditions. In vivo implantation of FRH-PG and FRH-PGS scaffolds into full-thickness rat patellar tendon defects showed good collagenous tissue ingrowth into these scaffolds after 6 weeks. This study demonstrates the potential viability for our FRH-PG and FRH-PGS scaffolds to be used for off-the-shelf biosynthetic tendon graft material.
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Affiliation(s)
- Young Jung No
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney 2006, Australia.,Australian Research Council Training Centre for Innovative BioEngineering, Sydney 2006, Australia
| | - Solaiman Tarafder
- Regenerative Engineering Laboratory, Columbia University, New York 10032, New York, United States
| | - Barbara Reischl
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen 91052, Germany
| | - Yogambha Ramaswamy
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney 2006, Australia.,Australian Research Council Training Centre for Innovative BioEngineering, Sydney 2006, Australia
| | - Colin Dunstan
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney 2006, Australia.,Australian Research Council Training Centre for Innovative BioEngineering, Sydney 2006, Australia
| | - Oliver Friedrich
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen 91052, Germany
| | - Chang Hun Lee
- Regenerative Engineering Laboratory, Columbia University, New York 10032, New York, United States
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Biomedical Engineering, University of Sydney, Sydney 2006, Australia.,Australian Research Council Training Centre for Innovative BioEngineering, Sydney 2006, Australia
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28
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Lu Z, Chiu J, Lee LR, Schindeler A, Jackson M, Ramaswamy Y, Dunstan CR, Hogg PJ, Zreiqat H. Reprogramming of human fibroblasts into osteoblasts by insulin-like growth factor-binding protein 7. Stem Cells Transl Med 2020; 9:403-415. [PMID: 31904196 PMCID: PMC7031646 DOI: 10.1002/sctm.19-0281] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [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: 08/30/2019] [Accepted: 11/16/2019] [Indexed: 12/22/2022] Open
Abstract
The induced pluripotent stem cell (iPSC) is a promising cell source for tissue regeneration. However, the therapeutic value of iPSC technology is limited due to the complexity of induction protocols and potential risks of teratoma formation. A trans-differentiation approach employing natural factors may allow better control over reprogramming and improved safety. We report here a novel approach to drive trans-differentiation of human fibroblasts into functional osteoblasts using insulin-like growth factor binding protein 7 (IGFBP7). We initially determined that media conditioned by human osteoblasts can induce reprogramming of human fibroblasts to functional osteoblasts. Proteomic analysis identified IGFBP7 as being significantly elevated in media conditioned with osteoblasts compared with those with fibroblasts. Recombinant IGFBP7 induced a phenotypic switch from fibroblasts to osteoblasts. The switch was associated with senescence and dependent on autocrine IL-6 signaling. Our study supports a novel strategy for regenerating bone by using IGFBP7 to trans-differentiate fibroblasts to osteoblasts.
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Affiliation(s)
- ZuFu Lu
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical EngineeringThe University of SydneyCamperdownNew South WalesAustralia
- ARC Training Centre for Innovative BioEngineeringThe University of SydneyCamperdownNew South WalesAustralia
| | - Joyce Chiu
- The Centenary InstituteNHMRC Clinical Trial Centre, The University of SydneyCamperdownNew South WalesAustralia
| | - Lucinda R. Lee
- Bioengineering & Molecular MedicineThe Children's Hospital at WestmeadWestmeadNew South WalesAustralia
- Discipline of Child and Adolescent MedicineThe University of SydneyCamperdownNew South WalesAustralia
| | - Aaron Schindeler
- Bioengineering & Molecular MedicineThe Children's Hospital at WestmeadWestmeadNew South WalesAustralia
- Discipline of Child and Adolescent MedicineThe University of SydneyCamperdownNew South WalesAustralia
| | - Miriam Jackson
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical EngineeringThe University of SydneyCamperdownNew South WalesAustralia
| | - Yogambha Ramaswamy
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical EngineeringThe University of SydneyCamperdownNew South WalesAustralia
- ARC Training Centre for Innovative BioEngineeringThe University of SydneyCamperdownNew South WalesAustralia
| | - Colin R. Dunstan
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical EngineeringThe University of SydneyCamperdownNew South WalesAustralia
- ARC Training Centre for Innovative BioEngineeringThe University of SydneyCamperdownNew South WalesAustralia
| | - Philip J. Hogg
- The Centenary InstituteNHMRC Clinical Trial Centre, The University of SydneyCamperdownNew South WalesAustralia
| | - Hala Zreiqat
- Tissue Engineering & Biomaterials Research Unit, School of Biomedical EngineeringThe University of SydneyCamperdownNew South WalesAustralia
- ARC Training Centre for Innovative BioEngineeringThe University of SydneyCamperdownNew South WalesAustralia
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Thomson S, Lu W, Zreiqat H, Li JJ, Tetsworth K, Al Muderis M. Proximal Bone Remodeling in Lower Limb Amputees Reconstructed With an Osseointegrated Prosthesis. J Orthop Res 2019; 37:2524-2530. [PMID: 31424108 DOI: 10.1002/jor.24445] [Citation(s) in RCA: 4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 08/02/2019] [Indexed: 02/04/2023]
Abstract
Mobility outcomes and changes in bone mineral density (BMD) of the spine and femoral necks in response to unilateral osseointegrated implants was investigated over a 3-year period. A total of 48 unilateral amputees who received an osseointegrated implant, comprising 33 trans-femoral amputees (TFA) and 15 trans-tibial amputees (TTA), underwent dual-energy X-ray absorptiometry (DXA) scans of the lumbar spine (L2-L4) and femoral necks at baseline, 1-, and 3-years follow-ups. Mobility outcomes, including the Six-Minute-Walk Test (6MWT) and Timed-Up-and-Go (TUG), were measured before surgery, at 1 year, and more than 2 years following the osseointegration procedure. We observed a significant increase (p < 0.05) in Z-score values in the femoral neck of the amputated side in TFA patients without a femoral neck lag screw at the 1- and 3-year follow-ups, as well as in TFA patients with a lag screw present at 3-year follow-up. The BMD at 1-year follow-up was found to be positively correlated with pre-surgery 6MWT values in patients who were mobile using a traditional socket prosthesis before receiving an osseointegrated implant. These results suggest that osseointegrated implants induce a physiological response in the femoral neck of recipients and appear to be evidence of restored biomechanical loading in the proximal femur. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 37:2524-2530, 2019.
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Affiliation(s)
- Seamus Thomson
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - William Lu
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Jiao Jiao Li
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney, New South Wales, 2006, Australia
| | - Kevin Tetsworth
- Royal Brisbane and Women's Hospital, Herston, Queensland, 4029, Australia
| | - Munjed Al Muderis
- The Australian School of Advanced Medicine, Macquarie University, North Ryde, New South Wales, 2109, Australia.,School of Medicine, The University of Notre Dame, Auburn, New South Wales, 2144, Australia.,Norwest Private Hospital, Bella Vista, New South Wales, 2153, Australia
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Li JJ, Dunstan CR, Entezari A, Li Q, Steck R, Saifzadeh S, Sadeghpour A, Field JR, Akey A, Vielreicher M, Friedrich O, Roohani-Esfahani SI, Zreiqat H. A Novel Bone Substitute with High Bioactivity, Strength, and Porosity for Repairing Large and Load-Bearing Bone Defects. Adv Healthc Mater 2019; 8:e1900641. [PMID: 31310457 DOI: 10.1002/adhm.201900641] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Li JJ, Dunstan CR, Entezari A, Li Q, Steck R, Saifzadeh S, Sadeghpour A, Field JR, Akey A, Vielreicher M, Friedrich O, Roohani‐Esfahani S, Zreiqat H. Bone Regeneration: A Novel Bone Substitute with High Bioactivity, Strength, and Porosity for Repairing Large and Load‐Bearing Bone Defects (Adv. Healthcare Mater. 8/2019). Adv Healthc Mater 2019. [DOI: 10.1002/adhm.201970031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jiao Jiao Li
- Biomaterials and Tissue Engineering Research UnitSchool of Aerospace, Mechanical and Mechatronic EngineeringUniversity of Sydney Sydney NSW 2006 Australia
- Raymond Purves Bone and Joint Research LaboratoriesInstitute of Bone and Joint ResearchKolling InstituteNorthern Sydney Local Health DistrictFaculty of Medicine and HealthUniversity of Sydney St Leonards NSW 2065 Australia
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
| | - Colin R. Dunstan
- Biomaterials and Tissue Engineering Research UnitSchool of Aerospace, Mechanical and Mechatronic EngineeringUniversity of Sydney Sydney NSW 2006 Australia
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
| | - Ali Entezari
- School of Aerospace, Mechanical and Mechatronic EngineeringUniversity of Sydney Sydney NSW 2006 Australia
| | - Qing Li
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
- School of Aerospace, Mechanical and Mechatronic EngineeringUniversity of Sydney Sydney NSW 2006 Australia
| | - Roland Steck
- Medical Engineering Research Facility (MERF)Institute of Health and Biomedical Innovation (IHBI)Queensland University of Technology Prince Charles Hospital Campus Brisbane QLD 4000 Australia
| | - Siamak Saifzadeh
- Medical Engineering Research Facility (MERF)Institute of Health and Biomedical Innovation (IHBI)Queensland University of Technology Prince Charles Hospital Campus Brisbane QLD 4000 Australia
| | - Ameneh Sadeghpour
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
- Allegra Orthopaedics Limited Sydney NSW 2000 Australia
| | - John R. Field
- Centre for Orthopaedic Trauma and ResearchUniversity of Adelaide Adelaide SA 5000 Australia
| | - Austin Akey
- Center for Nanoscale SystemsHarvard University Cambridge MA 02138 USA
| | - Martin Vielreicher
- Institute of Medical BiotechnologyDepartment of Chemical and Biological EngineeringFriedrich Alexander University of Erlangen‐Nürnberg Erlangen 91052 Germany
| | - Oliver Friedrich
- Institute of Medical BiotechnologyDepartment of Chemical and Biological EngineeringFriedrich Alexander University of Erlangen‐Nürnberg Erlangen 91052 Germany
| | | | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research UnitSchool of Aerospace, Mechanical and Mechatronic EngineeringUniversity of Sydney Sydney NSW 2006 Australia
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
- Radcliffe Institute for Advanced StudyHarvard University Cambridge MA 02138 USA
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Li JJ, Dunstan CR, Entezari A, Li Q, Steck R, Saifzadeh S, Sadeghpour A, Field JR, Akey A, Vielreicher M, Friedrich O, Roohani‐Esfahani S, Zreiqat H. A Novel Bone Substitute with High Bioactivity, Strength, and Porosity for Repairing Large and Load-Bearing Bone Defects. Adv Healthc Mater 2019; 8:e1801298. [PMID: 30773833 DOI: 10.1002/adhm.201801298] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [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: 10/14/2018] [Revised: 01/18/2019] [Indexed: 12/18/2022]
Abstract
Achieving adequate healing in large or load-bearing bone defects is highly challenging even with surgical intervention. The clinical standard of repairing bone defects using autografts or allografts has many drawbacks. A bioactive ceramic scaffold, strontium-hardystonite-gahnite or "Sr-HT-Gahnite" (a multi-component, calcium silicate-based ceramic) is developed, which when 3D-printed combines high strength with outstanding bone regeneration ability. In this study, the performance of purely synthetic, 3D-printed Sr-HT-Gahnite scaffolds is assessed in repairing large and load-bearing bone defects. The scaffolds are implanted into critical-sized segmental defects in sheep tibia for 3 and 12 months, with bone autografts used for comparison. The scaffolds induce substantial bone formation and defect bridging after 12 months, as indicated by X-ray, micro-computed tomography, and histological and biomechanical analyses. Detailed analysis of the bone-scaffold interface using focused ion beam scanning electron microscopy and multiphoton microscopy shows scaffold degradation and maturation of the newly formed bone. In silico modeling of strain energy distribution in the scaffolds reveal the importance of surgical fixation and mechanical loading on long-term bone regeneration. The clinical application of 3D-printed Sr-HT-Gahnite scaffolds as a synthetic bone substitute can potentially improve the repair of challenging bone defects and overcome the limitations of bone graft transplantation.
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Affiliation(s)
- Jiao Jiao Li
- Biomaterials and Tissue Engineering Research Unit School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
- Raymond Purves Bone and Joint Research Laboratories Institute of Bone and Joint Research Kolling Institute Northern Sydney Local Health District Faculty of Medicine and Health University of Sydney St Leonards NSW 2065 Australia
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
| | - Colin R. Dunstan
- Biomaterials and Tissue Engineering Research Unit School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
| | - Ali Entezari
- School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
| | - Qing Li
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
- School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
| | - Roland Steck
- Medical Engineering Research Facility (MERF) Institute of Health and Biomedical Innovation (IHBI) Queensland University of Technology Prince Charles Hospital Campus Brisbane QLD 4000 Australia
| | - Siamak Saifzadeh
- Medical Engineering Research Facility (MERF) Institute of Health and Biomedical Innovation (IHBI) Queensland University of Technology Prince Charles Hospital Campus Brisbane QLD 4000 Australia
| | - Ameneh Sadeghpour
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
- Allegra Orthopaedics Limited Sydney NSW 2000 Australia
| | - John R. Field
- Centre for Orthopaedic Trauma and Research University of Adelaide Adelaide SA 5000 Australia
| | - Austin Akey
- Center for Nanoscale Systems Harvard University Cambridge MA 02138 USA
| | - Martin Vielreicher
- Institute of Medical Biotechnology Department of Chemical and Biological Engineering Friedrich Alexander University of Erlangen‐Nürnberg Erlangen 91052 Germany
| | - Oliver Friedrich
- Institute of Medical Biotechnology Department of Chemical and Biological Engineering Friedrich Alexander University of Erlangen‐Nürnberg Erlangen 91052 Germany
| | | | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
- Australian Research Council Training Centre for Innovative BioEngineering Sydney NSW 2006 Australia
- Radcliffe Institute for Advanced Study Harvard University Cambridge MA 02138 USA
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33
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Li JJ, Hosseini-Beheshti E, Grau GE, Zreiqat H, Little CB. Stem Cell-Derived Extracellular Vesicles for Treating Joint Injury and Osteoarthritis. Nanomaterials (Basel) 2019; 9:nano9020261. [PMID: 30769853 PMCID: PMC6409698 DOI: 10.3390/nano9020261] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [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: 01/18/2019] [Revised: 02/07/2019] [Accepted: 02/13/2019] [Indexed: 02/07/2023]
Abstract
Extracellular vesicles (EVs) are nanoscale particles secreted by almost all cell types to facilitate intercellular communication. Stem cell-derived EVs theoretically have the same biological functions as stem cells, but offer the advantages of small size, low immunogenicity, and removal of issues such as low cell survival and unpredictable long-term behaviour associated with direct cell transplantation. They have been an area of intense interest in regenerative medicine, due to the potential to harness their anti-inflammatory and pro-regenerative effects to induce healing in a wide variety of tissues. However, the potential of using stem cell-derived EVs for treating joint injury and osteoarthritis has not yet been extensively explored. The pathogenesis of osteoarthritis, with or without prior joint injury, is not well understood, and there is a longstanding unmet clinical need to develop new treatments that provide a therapeutic effect in preventing or stopping joint degeneration, rather than merely relieving the symptoms of the disease. This review summarises the current evidence relating to stem cell-derived EVs in joint injury and osteoarthritis, providing a concise discussion of their characteristics, advantages, therapeutic effects, limitations and outlook in this exciting new area.
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Affiliation(s)
- Jiao Jiao Li
- Raymond Purves Bone and Joint Research Laboratories, Institute of Bone and Joint Research, Kolling Institute, Northern Sydney Local Health District, Faculty of Medicine and Health, University of Sydney, St Leonards, NSW 2065, Australia.
- Biomaterials and Tissue Engineering Research Unit, School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW 2006, Australia.
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, NSW 2006, Australia.
| | - Elham Hosseini-Beheshti
- Vascular Immunology Unit, Discipline of Pathology, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia.
| | - Georges E Grau
- Vascular Immunology Unit, Discipline of Pathology, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia.
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW 2006, Australia.
- Australian Research Council Training Centre for Innovative BioEngineering, Sydney, NSW 2006, Australia.
| | - Christopher B Little
- Raymond Purves Bone and Joint Research Laboratories, Institute of Bone and Joint Research, Kolling Institute, Northern Sydney Local Health District, Faculty of Medicine and Health, University of Sydney, St Leonards, NSW 2065, Australia.
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Jia Z, Xiu P, Roohani-Esfahani SI, Zreiqat H, Xiong P, Zhou W, Yan J, Cheng Y, Zheng Y. Triple-Bioinspired Burying/Crosslinking Interfacial Coassembly Strategy for Layer-by-Layer Construction of Robust Functional Bioceramic Self-Coatings for Osteointegration Applications. ACS Appl Mater Interfaces 2019; 11:4447-4469. [PMID: 30609379 DOI: 10.1021/acsami.8b20429] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Zhaojun Jia
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
- Department of Orthopaedics and Traumatology, The University of Hong Kong, 21 Sassoon Road, Pokfulam 999077, Hong Kong China
| | - Peng Xiu
- Department of Orthopedic Surgery, West China Hospital, Sichuan University, 37 Guoxue Road, Chengdu 610041, China
| | - Seyed-Iman Roohani-Esfahani
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney 2006, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney 2006, Australia
| | - Pan Xiong
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Wenhao Zhou
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Jianglong Yan
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Yan Cheng
- Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, China
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Entezari A, Roohani I, Li G, Dunstan CR, Rognon P, Li Q, Jiang X, Zreiqat H. Architectural Design of 3D Printed Scaffolds Controls the Volume and Functionality of Newly Formed Bone. Adv Healthc Mater 2019; 8:e1801353. [PMID: 30536610 DOI: 10.1002/adhm.201801353] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/17/2018] [Indexed: 02/01/2023]
Abstract
The successful regeneration of functional bone tissue in critical-size defects remains a significant clinical challenge. To address this challenge, synthetic bone scaffolds are widely developed, but remarkably few are translated to the clinic due to poor performance in vivo. Here, it is demonstrated how architectural design of 3D printed scaffolds can improve in vivo outcomes. Ceramic scaffolds with different pore sizes and permeabilities, but with similar porosity and interconnectivity, are implanted in rabbit calvaria for 12 weeks, and then the explants are harvested for microcomputed tomography evaluation of the volume and functionality of newly formed bone. The results indicate that scaffold pores should be larger than 390 µm with an upper limit of 590 µm to enhance bone formation. It is also demonstrated that a bimodal pore topology-alternating large and small pores-enhances the volume and functionality of new bone substantially. Moreover, bone formation results indicate that stiffness of new bone is highly influenced by the scaffold's permeability in the direction concerned. This study demonstrates that manipulating pore size and permeability in a 3D printed scaffold architecture provides a useful strategy for enhancing bone regeneration outcomes.
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Affiliation(s)
- Ali Entezari
- Australian Research Council Centre in Innovative BioEngineering School of Aerospace Mechanical and Mechatronic Engineering University of Sydney NSW 2006 Australia
- Shanghai‐Sydney Joint Bioengineering and Regenerative Medicine Lab at Shanghai JiaoTong Shanghai 200011 China
| | - Iman Roohani
- School of Chemistry University of New South Wales NSW 2052 Australia
| | - Guanglong Li
- Shanghai‐Sydney Joint Bioengineering and Regenerative Medicine Lab at Shanghai JiaoTong Shanghai 200011 China
- Department of Prosthodontics Oral Bioengineering and Regenerative Medicine Lab Ninth People's Hospital affiliated to Shanghai Jiao Tong University School of Medicine 639 Zhizaoju Road Shanghai 200011 China
| | - Colin R. Dunstan
- Australian Research Council Centre in Innovative BioEngineering School of Aerospace Mechanical and Mechatronic Engineering University of Sydney NSW 2006 Australia
- Shanghai‐Sydney Joint Bioengineering and Regenerative Medicine Lab at Shanghai JiaoTong Shanghai 200011 China
| | - Pierre Rognon
- School of Civil Engineering University of Sydney NSW 2006 Australia
| | - Qing Li
- Australian Research Council Centre in Innovative BioEngineering School of Aerospace Mechanical and Mechatronic Engineering University of Sydney NSW 2006 Australia
- Shanghai‐Sydney Joint Bioengineering and Regenerative Medicine Lab at Shanghai JiaoTong Shanghai 200011 China
| | - Xinquan Jiang
- Shanghai‐Sydney Joint Bioengineering and Regenerative Medicine Lab at Shanghai JiaoTong Shanghai 200011 China
- Department of Prosthodontics Oral Bioengineering and Regenerative Medicine Lab Ninth People's Hospital affiliated to Shanghai Jiao Tong University School of Medicine 639 Zhizaoju Road Shanghai 200011 China
| | - Hala Zreiqat
- Australian Research Council Centre in Innovative BioEngineering School of Aerospace Mechanical and Mechatronic Engineering University of Sydney NSW 2006 Australia
- Shanghai‐Sydney Joint Bioengineering and Regenerative Medicine Lab at Shanghai JiaoTong Shanghai 200011 China
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No YJ, Xin X, Ramaswamy Y, Li Y, Roohaniesfahani S, Mustaffa S, Shi J, Jiang X, Zreiqat H. Novel injectable strontium-hardystonite phosphate cement for cancellous bone filling applications. Mater Sci Eng C Mater Biol Appl 2018; 97:103-115. [PMID: 30678894 DOI: 10.1016/j.msec.2018.11.069] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 12/14/2017] [Revised: 10/10/2018] [Accepted: 11/27/2018] [Indexed: 12/16/2022]
Abstract
Injectable bone cement (IBC) such as those based on methacrylates and hydraulic calcium phosphate and calcium sulfate-based cements have been used extensively for filling bone defects with acceptable clinical outcomes. There is a need however for novel IBC materials that can address some of the inherent limitations of currently available formulations to widen the clinical application of IBC. In this study, we characterized a novel hydraulic IBC formulation consisting of bioactive strontium-doped hardystonite (Sr-HT) ceramic microparticles and sodium dihydrogen phosphate, herein named Sr-HT phosphate cement (SPC). The resultant cement is comprised of two distinct amorphous phases with embedded partially reacted crystalline reactants. The novel SPC formulation possesses a unique combination of physicochemical properties suitable for use as an IBC, and demonstrates in vitro cytocompatibility when seeded with primary human osteoblasts. In vivo injection of SPC into rabbit sinus defects show minor new bone formation at the SPC periphery, similar to those exhibited in sinus defects filled with a clinically available calcium phosphate cement. The current SPC formulation presented in this paper shows promise as a clinically applicable IBC which can be further enhanced with additives.
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Affiliation(s)
- Young Jung No
- Biomaterials and Tissue Engineering Unit, School of AMME, Faculty of Engineering and IT, University of Sydney, NSW 2006, Australia; Joint Bioengineering and Regenerative Medicine Lab, Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
| | - Xianzhen Xin
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China; Joint Bioengineering and Regenerative Medicine Lab, Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
| | - Yogambha Ramaswamy
- Biomaterials and Tissue Engineering Unit, School of AMME, Faculty of Engineering and IT, University of Sydney, NSW 2006, Australia; Joint Bioengineering and Regenerative Medicine Lab, Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
| | - Yihan Li
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China; Joint Bioengineering and Regenerative Medicine Lab, Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China
| | - Seyediman Roohaniesfahani
- Biomaterials and Tissue Engineering Unit, School of AMME, Faculty of Engineering and IT, University of Sydney, NSW 2006, Australia
| | - Siti Mustaffa
- Biomaterials and Tissue Engineering Unit, School of AMME, Faculty of Engineering and IT, University of Sydney, NSW 2006, Australia
| | - Jeffrey Shi
- School of Chemical and Biomolecular Engineering, Faculty of Engineering and IT, University of Sydney, NSW 2006, Australia
| | - Xinquan Jiang
- Department of Prosthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China; Joint Bioengineering and Regenerative Medicine Lab, Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China.
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Unit, School of AMME, Faculty of Engineering and IT, University of Sydney, NSW 2006, Australia; Joint Bioengineering and Regenerative Medicine Lab, Ninth People's Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai 200011, China.
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Roohaniesfahani I, Wang J, No YJ, de Candia C, Miao X, Lu Z, Shi J, Kaplan DL, Jiang X, Zreiqat H. Modulatory effect of simultaneously released magnesium, strontium, and silicon ions on injectable silk hydrogels for bone regeneration. Mater Sci Eng C Mater Biol Appl 2018; 94:976-987. [PMID: 30423786 DOI: 10.1016/j.msec.2018.10.053] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 08/08/2018] [Accepted: 10/13/2018] [Indexed: 01/31/2023]
Abstract
Injectable silk hydrogels are ideal carriers of therapeutic agents due to their biocompatibility and low immunogenicity. Injectable silk hydrogels for bone regeneration have been previously developed but often utilize expensive biologics. In this study, we have developed an injectable silk composite incorporated with a triphasic ceramic called MSM-10 (54 Mg2SiO4, 36 Si3Sr5 and 10 MgO (wt%)) capable of simultaneously releasing magnesium, silicon, and strontium ions into its environment. These ions have been previously reported to possess therapeutic effects for bone regeneration. MSM-10 particles were incorporated into the silk hydrogels at various weight percentages [0.1 (SMH-0.1), 0.6 (SMH-0.6), 1 (SMH-1) and 2 (SMH-2)]. The effects of the released ions on the physicochemical and biological properties of the silk hydrogel were comprehensively evaluated. Increased MSM-10 loading was found to hinder the gelation kinetics of the silk hydrogel through the reduction of beta-sheet phase formation, which in turn affected the required sonication time for gelation, compressive strength, force of injection, microstructure and in vitro degradation rate. Primary human osteoblasts seeded on SMH-0.6 demonstrated increased proliferation and early alkaline phosphatase activity, as well as enhanced osteogenic gene expression compared to pure silk hydrogel and SMH-0.1. In vivo results in subcutaneous mouse models showed both decreased fibrous capsule formation and increased number of new blood vessels around the injected SMH-0.1 and SMH-0.6 implants compared to pure silk hydrogels. The results in this study indicate that the ions released from MSM-10 is able to influence the physicochemical and biological properties of silk hydrogels, and SMH-0.6 in particular shows promising properties for bone regeneration.
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Affiliation(s)
- Iman Roohaniesfahani
- Biomaterials and Tissue Engineering Research Unit, School of AMME, Faculty of Engineering and IT, University of Sydney, Sydney, Australia.
| | - Jie Wang
- Department of Prosthodontics, Oral Bioengineering and Regenerative Medicine Lab, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Young Jung No
- Biomaterials and Tissue Engineering Research Unit, School of AMME, Faculty of Engineering and IT, University of Sydney, Sydney, Australia
| | - Christian de Candia
- Biomaterials and Tissue Engineering Research Unit, School of AMME, Faculty of Engineering and IT, University of Sydney, Sydney, Australia
| | - Xinchao Miao
- Department of Prosthodontics, Oral Bioengineering and Regenerative Medicine Lab, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Zufu Lu
- Biomaterials and Tissue Engineering Research Unit, School of AMME, Faculty of Engineering and IT, University of Sydney, Sydney, Australia
| | - Jeffrey Shi
- School of Chemical and Biomolecular Engineering, Faculty of Engineering and IT, University of Sydney, Sydney, Australia
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, MA 02155, USA
| | - Xinquan Jiang
- Department of Prosthodontics, Oral Bioengineering and Regenerative Medicine Lab, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai, China.
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of AMME, Faculty of Engineering and IT, University of Sydney, Sydney, Australia.
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Li JJ, Akey A, Dunstan CR, Vielreicher M, Friedrich O, Bell DC, Zreiqat H. Effects of Material-Tissue Interactions on Bone Regeneration Outcomes Using Baghdadite Implants in a Large Animal Model. Adv Healthc Mater 2018; 7:e1800218. [PMID: 29877058 DOI: 10.1002/adhm.201800218] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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: 02/28/2018] [Revised: 04/03/2018] [Indexed: 12/13/2022]
Abstract
Extensive bone loss due to trauma or disease leads to impaired healing. Current bone grafts and substitutes have major drawbacks that limit their effectiveness for treating large bone defects. A number of bone substitutes in development are undergoing preclinical testing, but few studies specifically investigate the in vivo material-tissue interactions that provide an important indicator to long-term implant safety and efficacy. This study is the first of its kind to specifically investigate in vivo material-tissue interactions at the bone-implant interface. Baghdadite scaffolds implanted in critical-sized segmental defects in sheep tibia for 26 weeks are analyzed by focused ion beam scanning electron microscopy, multiphoton microscopy, and histology. The scaffolds are seen to induce extensive bone formation that directly abut the implant surfaces with no evidence of chronic inflammation or fibrous capsule formation. Bone remodeling is influenced by slow in vivo degradation around and within the implant, causing portions of the implant to be incorporated into the newly formed bone. These findings have important implications for predicting the long-term effects of baghdadite ceramics in promoting defect healing, and support the translation of baghdadite scaffolds as a new generation of bone graft substitutes with improved properties for the repair of large bone defects.
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Affiliation(s)
- Jiao Jiao Li
- Biomaterials and Tissue Engineering Research Unit, School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Raymond Purves Bone and Joint Research Laboratories, Institute of Bone and Joint Research, Kolling Institute, Northern Sydney Local Health District, Faculty of Medicine and Health, University of Sydney, St Leonards, NSW, 2065, Australia
| | - Austin Akey
- Center for Nanoscale Systems, Harvard University, Cambridge, MA, 02138, USA
| | - Colin R Dunstan
- Biomaterials and Tissue Engineering Research Unit, School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Martin Vielreicher
- Department of Chemical and Biological Engineering, Institute of Medical Biotechnology, Friedrich Alexander University of Erlangen-Nürnberg, Erlangen, 91052, Germany
| | - Oliver Friedrich
- Department of Chemical and Biological Engineering, Institute of Medical Biotechnology, Friedrich Alexander University of Erlangen-Nürnberg, Erlangen, 91052, Germany
| | - David C Bell
- Center for Nanoscale Systems, Harvard University, Cambridge, MA, 02138, USA
- Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, 02138, USA
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Aerospace, Mechanical and Mechatronic Engineering, University of Sydney, Sydney, NSW, 2006, Australia
- Radcliffe Institute for Advanced Study, Harvard University, Cambridge, MA, 02138, USA
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Li JJ, Ebied M, Xu J, Zreiqat H. Current Approaches to Bone Tissue Engineering: The Interface between Biology and Engineering. Adv Healthc Mater 2018; 7:e1701061. [PMID: 29280321 DOI: 10.1002/adhm.201701061] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [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: 09/06/2017] [Revised: 11/15/2017] [Indexed: 01/17/2023]
Abstract
The successful regeneration of bone tissue to replace areas of bone loss in large defects or at load-bearing sites remains a significant clinical challenge. Over the past few decades, major progress is achieved in the field of bone tissue engineering to provide alternative therapies, particularly through approaches that are at the interface of biology and engineering. To satisfy the diverse regenerative requirements of bone tissue, the field moves toward highly integrated approaches incorporating the knowledge and techniques from multiple disciplines, and typically involves the use of biomaterials as an essential element for supporting or inducing bone regeneration. This review summarizes the types of approaches currently used in bone tissue engineering, beginning with those primarily based on biology or engineering, and moving into integrated approaches in the areas of biomaterial developments, biomimetic design, and scalable methods for treating large or load-bearing bone defects, while highlighting potential areas for collaboration and providing an outlook on future developments.
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Affiliation(s)
- Jiao Jiao Li
- Biomaterials and Tissue Engineering Research Unit School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
- Raymond Purves Bone and Joint Research Laboratories Kolling Institute Northern Sydney Local Health District Sydney Medical School Northern University of Sydney St Leonards NSW 2065 Australia
| | - Mohamed Ebied
- Radcliffe Institute for Advanced Study Harvard University Cambridge MA 02138 USA
| | - Jen Xu
- Radcliffe Institute for Advanced Study Harvard University Cambridge MA 02138 USA
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit School of Aerospace, Mechanical and Mechatronic Engineering University of Sydney Sydney NSW 2006 Australia
- Radcliffe Institute for Advanced Study Harvard University Cambridge MA 02138 USA
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Zreiqat H, James B, Brieger D, Kritharides L, Lowe H. Acute coronary stent thrombosis: Toward insights into possible mechanism using novel imaging methods. Thromb Haemost 2017; 99:976-7. [DOI: 10.1160/th08-01-0031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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41
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Graney PL, Roohani-Esfahani SI, Zreiqat H, Spiller KL. In vitro response of macrophages to ceramic scaffolds used for bone regeneration. J R Soc Interface 2017; 13:rsif.2016.0346. [PMID: 27466438 DOI: 10.1098/rsif.2016.0346] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [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: 05/03/2016] [Accepted: 07/04/2016] [Indexed: 01/09/2023] Open
Abstract
Macrophages, the primary cells of the inflammatory response, are major regulators of healing, and mediate both bone fracture healing and the inflammatory response to implanted biomaterials. However, their phenotypic contributions to biomaterial-mediated bone repair are incompletely understood. Therefore, we used gene expression and protein secretion analysis to investigate the interactions in vitro between primary human monocyte-derived macrophages and ceramic scaffolds that have been shown to have varying degrees of success in promoting bone regeneration in vivo Specifically, baghdadite (Ca3ZrSi2O9) and strontium-hardystonite-gahnite (Sr-Ca2ZnSi2O7-ZnAl2O4) scaffolds were chosen as two materials that enhanced bone regeneration in vivo in large defects under load compared with clinically used tricalcium phosphate-hydroxyapatite (TCP-HA). Principal component analysis revealed that the scaffolds differentially regulated macrophage phenotype. Temporal changes in gene expression included shifts in markers of pro-inflammatory M1, anti-inflammatory M2a and pro-remodelling M2c macrophage phenotypes. Of note, TCP-HA scaffolds promoted upregulation of many M1-related genes and downregulation of many M2a- and M2c-related genes. Effects of the scaffolds on macrophages were attributed primarily to direct cell-scaffold interactions because of only minor changes observed in transwell culture. Ultimately, elucidating macrophage-biomaterial interactions will facilitate the design of immunomodulatory biomaterials for bone repair.
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Affiliation(s)
- Pamela L Graney
- Biomaterials and Regenerative Medicine Laboratory, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Seyed-Iman Roohani-Esfahani
- Biomaterials and Tissue Engineering Research Unit, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales 2026, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Aerospace, Mechanical and Mechatronic Engineering, The University of Sydney, Sydney, New South Wales 2026, Australia
| | - Kara L Spiller
- Biomaterials and Regenerative Medicine Laboratory, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
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No YJ, Roohaniesfahani S, Lu Z, Shi J, Zreiqat H. Strontium-doped calcium silicate bioceramic with enhanced in vitro osteogenic properties. ACTA ACUST UNITED AC 2017; 12:035003. [PMID: 28348275 DOI: 10.1088/1748-605x/aa6987] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Gehlenite (GLN, Ca2SiAl2O7) is a bioceramic that has been recently shown to possess excellent mechanical strength and in vitro osteogenic properties for bone regeneration. Substitutional incorporation of strontium in place of calcium is an effective way to further enhance biological properties of calcium-based bioceramics and glasses. However, such strategy has the potential to affect other important physicochemical parameters such as strength and degradation due to differences in the ionic radius of strontium and calcium. This study is the first to investigate the effect of a range of concentrations of strontium substitution of calcium at 1, 2, 5, 10 mol% (S1-GLN, S2-GLN, S5-GLN and S10-GLN) on the physicochemical and biological properties of GLN. We showed that up to 2 mol% strontium ion substitution retains the monophasic GLN structure when sintered at 1450 °C, whereas higher concentrations resulted in presence of calcium silicate impurities. Increased strontium incorporation resulted in changes in grain morphology and reduced densification when the ceramics were sintered at 1450 °C. Porous GLN, S1-GLN and S2-GLN scaffolds (∼80% porosity) showed compressive strengths of 2.05 ± 0.46 MPa, 1.76 ± 0.79 MPa and 1.57 ± 0.52 MPa respectively. S1-GLN and S2-GLN immersed in simulated body fluid showed increased strontium ion release but reduced calcium and silicon ion release compared to GLN without affecting overall weight loss and pH over a 21 d period. The bioactivity of the S2-GLN ceramics was significantly improved as reflected in the significant upregulation of HOB proliferation and differentiation compared to GLN. Overall, these results suggest that increased incorporation of strontium presents a trade-off between bioactivity and mechanical strength for GLN bioceramics. This is an important consideration in the development of strontium-doped bioceramics.
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Affiliation(s)
- Young Jung No
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, NSW, Australia
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Lu Z, Chen Y, Dunstan C, Roohani-Esfahani S, Zreiqat H. Priming Adipose Stem Cells with Tumor Necrosis Factor-Alpha Preconditioning Potentiates Their Exosome Efficacy for Bone Regeneration. Tissue Eng Part A 2017; 23:1212-1220. [PMID: 28346798 DOI: 10.1089/ten.tea.2016.0548] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have been widely used for tissue repair and regeneration. However, the inherent drawbacks, including limited cell survival after cell transplantation, have hindered direct MSC transplantation for tissue repair and regeneration. The aim of this study was to investigate if exosomes isolated from MSCs can promote the proliferation and differentiation of human primary osteoblastic cells (HOBs) and be potentially used for bone tissue regeneration. We showed that adipose tissue-derived MSC (ASC)-derived exosomes (ASC-EXO) were able to promote the proliferation and osteogenic differentiation in HOBs; and the trophic effects of ASC-EXO on HOBs were further harnessed when ASCs were preconditioned with tumor necrosis factor-alpha (TNF-α) for 3 days, which mimics the acute inflammatory phase upon bone injury. In addition, we showed that Wnt-3a content was elevated in ASC-EXO when ASCs were preconditioned by TNF-α, and inhibiting Wnt signaling decreased the osteogenic gene expression levels in HOBs which were cultured in TNF-α preconditioned ASCs conditioned medium. In conclusion, it was demonstrated that ASC-EXO, especially primed by TNF-α preconditioning on ASCs, offer a promising approach to replace direct stem cell transplantation for bone repair and regeneration.
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Affiliation(s)
- ZuFu Lu
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney , Sydney, Australia
| | - YongJuan Chen
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney , Sydney, Australia
| | - Colin Dunstan
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney , Sydney, Australia
| | - Seyediman Roohani-Esfahani
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney , Sydney, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney , Sydney, Australia
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Affiliation(s)
- Seyed-Iman Roohani-Esfahani
- Tissue Engineering & Biomaterials Research Unit, School of Aerospace, Mechanical & Mechatronic Engineering Faculty of Engineering and Information Technologies University of Sydney, Australia
| | - Hala Zreiqat
- Tissue Engineering & Biomaterials Research Unit, School of Aerospace, Mechanical & Mechatronic Engineering Faculty of Engineering and Information Technologies University of Sydney, Australia
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No YJ, Li JJ, Zreiqat H. Doped Calcium Silicate Ceramics: A New Class of Candidates for Synthetic Bone Substitutes. Materials (Basel) 2017; 10:E153. [PMID: 28772513 PMCID: PMC5459133 DOI: 10.3390/ma10020153] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [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: 12/29/2016] [Revised: 01/30/2017] [Accepted: 02/04/2017] [Indexed: 02/06/2023]
Abstract
Doped calcium silicate ceramics (DCSCs) have recently gained immense interest as a new class of candidates for the treatment of bone defects. Although calcium phosphates and bioactive glasses have remained the mainstream of ceramic bone substitutes, their clinical use is limited by suboptimal mechanical properties. DCSCs are a class of calcium silicate ceramics which are developed through the ionic substitution of calcium ions, the incorporation of metal oxides into the base binary xCaO-ySiO₂ system, or a combination of both. Due to their unique compositions and ability to release bioactive ions, DCSCs exhibit enhanced mechanical and biological properties. Such characteristics offer significant advantages over existing ceramic bone substitutes, and underline the future potential of adopting DCSCs for clinical use in bone reconstruction to produce improved outcomes. This review will discuss the effects of different dopant elements and oxides on the characteristics of DCSCs for applications in bone repair, including mechanical properties, degradation and ion release characteristics, radiopacity, and biological activity (in vitro and in vivo). Recent advances in the development of DCSCs for broader clinical applications will also be discussed, including DCSC composites, coated DCSC scaffolds and DCSC-coated metal implants.
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Affiliation(s)
- Young Jung No
- Biomaterials and Tissue Engineering Research Unit, School of AMME, University of Sydney, Sydney 2006, Australia.
| | - Jiao Jiao Li
- Biomaterials and Tissue Engineering Research Unit, School of AMME, University of Sydney, Sydney 2006, Australia.
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of AMME, University of Sydney, Sydney 2006, Australia.
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46
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Wang G, Roohani-Esfahani SI, Zhang W, Lv K, Yang G, Ding X, Zou D, Cui D, Zreiqat H, Jiang X. Effects of Sr-HT-Gahnite on osteogenesis and angiogenesis by adipose derived stem cells for critical-sized calvarial defect repair. Sci Rep 2017; 7:41135. [PMID: 28106165 PMCID: PMC5247715 DOI: 10.1038/srep41135] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 12/15/2016] [Indexed: 01/08/2023] Open
Abstract
Tissue engineering strategies to construct vascularized bone grafts are now attracting much attention. Strontium-hardystonite-Gahnite (Sr-HT-Gahnite) is a strong, highly porous, and biocompatible calcium silicate based bio-ceramic that contains strontium and zinc ions. Adipose derived stem cells (ASCs) have been demonstrated to have the ability in promoting osteogenesis and angiogenesis. In this study, the effects of Sr-HT-Gahnite on cell morphology, cell proliferation, and osteogenic differentiation of ASCs were systematically investigated. The cell proliferation, migration and angiogenic differentiation of human umbilical vein endothelial cell (HUVECs) were studied. Beta-tricalcium phosphate/hydroxyapatite (TCP/HA) bioceramic scaffolds were set as the control biomaterial. Both bio-ceramics exhibited no adverse influence on cell viability. The Sr-HT-Gahnite scaffolds promoted cell attachment and alkaline phosphatase (ALP) activity of ASCs. The Sr-HT-Gahnite dissolution products enhanced ALP activity, matrix mineralization, and angiogenic differentiation of ASCs. They could also improve cell proliferation, migration, and angiogenic differentiation of HUVECs. Levels of in vivo bone formation with Sr-HT Gahnite were significantly higher than that for TCP/HA. The combination of Sr-HT-Gahnite and ASCs promoted both osteogenesis and angiogenesis in vivo study, compared to Sr-HT-Gahnite and TCP/HA bio-ceramics when administered alone, suggesting Sr-HT-Gahnite can act as a carrier for ASCs for construction of vascularized tissue-engineered bone.
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Affiliation(s)
- Guifang Wang
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
| | - Seyed-Iman Roohani-Esfahani
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney, NSW 2006, Australia
| | - Wenjie Zhang
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
| | - Kaige Lv
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
| | - Guangzheng Yang
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
| | - Xun Ding
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
| | - Derong Zou
- Department of Stomatology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Daxiang Cui
- Institute of Nano Biomedicine and Engineering, Key Laboratory of Thin Film and Microfabrication Technology of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, National Center for Translational Medicine, Collaborative Innovational Center for System Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of AMME, The University of Sydney, Sydney, NSW 2006, Australia
| | - Xinquan Jiang
- Department of Prosthodontics, Ninth People's Hospital affiliated to Shanghai Jiao Tong University, School of Medicine, 639 Zhizaoju Road, Shanghai 200011, China
- Oral Bioengineering Lab, Shanghai Research Institute of Stomatology, Ninth People's Hospital Affiliated to Shanghai Jiao Tong University, School of Medicine, Shanghai Key Laboratory of Stomatology, 639 Zhizaoju Road, Shanghai 200011, China
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Newman P, Galenano Niño JL, Graney P, Razal JM, Minett AI, Ribas J, Ovalle-Robles R, Biro M, Zreiqat H. Relationship between nanotopographical alignment and stem cell fate with live imaging and shape analysis. Sci Rep 2016; 6:37909. [PMID: 27910868 PMCID: PMC5133629 DOI: 10.1038/srep37909] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 11/02/2016] [Indexed: 12/14/2022] Open
Abstract
The topography of a biomaterial regulates cellular interactions and determine stem cell fate. A complete understanding of how topographical properties affect cell behavior will allow the rational design of material surfaces that elicit specified biological functions once placed in the body. To this end, we fabricate substrates with aligned or randomly organized fibrous nanostructured topographies. Culturing adipose-derived stem cells (ASCs), we explore the dynamic relationship between the alignment of topography, cell shape and cell differentiation to osteogenic and myogenic lineages. We show aligned topographies differentiate cells towards a satellite cell muscle progenitor state - a distinct cell myogenic lineage responsible for postnatal growth and repair of muscle. We analyze cell shape between the different topographies, using fluorescent time-lapse imaging over 21 days. In contrast to previous work, this allows the direct measurement of cell shape at a given time rather than defining the morphology of the underlying topography and neglecting cell shape. We report quantitative metrics of the time-based morphological behaviors of cell shape in response to differing topographies. This analysis offers insights into the relationship between topography, cell shape and cell differentiation. Cells differentiating towards a myogenic fate on aligned topographies adopt a characteristic elongated shape as well as the alignment of cells.
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Affiliation(s)
- Peter Newman
- Biomaterials and Tissue Engineering Research Unit, School of Aeronautical Mechanical and Mechatronics Engineering, University of Sydney, Sydney, NSW, 2006, Australia
| | - Jorge Luis Galenano Niño
- EMBL Australia node in Single Molecule Science, School of Medical Sciences, The University of New South Wales, Sydney, Australia
| | - Pamela Graney
- Department of Biomedical Engineering, School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
| | - Joselito M Razal
- Institute for Frontier Materials, Deakin University, Geelong, Victoria, 3216, Australia
| | - Andrew I Minett
- Laboratory for Sustainable Technology, Department of Chemical and Biomolecular Engineering, University of Sydney, NSW, 2006, Australia.,Australian Institute for Nanoscale Science and Technology, University of Sydney, NSW, 2006, Australia
| | - João Ribas
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, USA
| | - Raquel Ovalle-Robles
- Nano-Science &Technology Center, LINTEC of America Inc., Richardson, Texas 75081, USA
| | - Maté Biro
- EMBL Australia node in Single Molecule Science, School of Medical Sciences, The University of New South Wales, Sydney, Australia.,Sydney Medical School, The University of Sydney, NSW, 2006, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Aeronautical Mechanical and Mechatronics Engineering, University of Sydney, Sydney, NSW, 2006, Australia
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Roohani-Esfahani SI, No YJ, Lu Z, Ng PY, Chen Y, Shi J, Pavlos NJ, Zreiqat H. A bioceramic with enhanced osteogenic properties to regulate the function of osteoblastic and osteocalastic cells for bone tissue regeneration. Biomed Mater 2016; 11:035018. [DOI: 10.1088/1748-6041/11/3/035018] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Li JJ, Roohani-Esfahani SI, Dunstan CR, Quach T, Steck R, Saifzadeh S, Pivonka P, Zreiqat H. Efficacy of novel synthetic bone substitutes in the reconstruction of large segmental bone defects in sheep tibiae. ACTA ACUST UNITED AC 2016; 11:015016. [PMID: 26894676 DOI: 10.1088/1748-6041/11/1/015016] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The treatment of large bone defects, particularly those with segmental bone loss, remains a significant clinical challenge as current approaches involving surgery or bone grafting often do not yield satisfactory long-term outcomes. This study reports the evaluation of novel ceramic scaffolds applied as bone graft substitutes in a clinically relevant in vivo model. Baghdadite scaffolds, unmodified or modified with a polycaprolactone coating containing bioactive glass nanoparticles, were implanted into critical-sized segmental bone defects in sheep tibiae for 26 weeks. Radiographic, biomechanical, μ-CT and histological analyses showed that both unmodified and modified baghdadite scaffolds were able to withstand physiological loads at the defect site, and induced substantial bone formation in the absence of supplementation with cells or growth factors. Notably, all samples showed significant bridging of the critical-sized defect (average 80%) with evidence of bone infiltration and remodelling within the scaffold implant. The unmodified and modified baghdadite scaffolds achieved similar outcomes of defect repair, although the latter may have an initial mechanical advantage due to the nanocomposite coating. The baghdadite scaffolds evaluated in this study hold potential for use as purely synthetic bone graft substitutes in the treatment of large bone defects while circumventing the drawbacks of autografts and allografts.
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Affiliation(s)
- Jiao Jiao Li
- Biomaterials and Tissue Engineering Research Unit, School of AMME, University of Sydney, Sydney, NSW 2006, Australia. These authors contributed equally
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Roohani-Esfahani SI, Newman P, Zreiqat H. Design and Fabrication of 3D printed Scaffolds with a Mechanical Strength Comparable to Cortical Bone to Repair Large Bone Defects. Sci Rep 2016; 6:19468. [PMID: 26782020 PMCID: PMC4726111 DOI: 10.1038/srep19468] [Citation(s) in RCA: 161] [Impact Index Per Article: 20.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 10/19/2015] [Indexed: 11/09/2022] Open
Abstract
A challenge in regenerating large bone defects under load is to create scaffolds with large and interconnected pores while providing a compressive strength comparable to cortical bone (100-150 MPa). Here we design a novel hexagonal architecture for a glass-ceramic scaffold to fabricate an anisotropic, highly porous three dimensional scaffolds with a compressive strength of 110 MPa. Scaffolds with hexagonal design demonstrated a high fatigue resistance (1,000,000 cycles at 1-10 MPa compressive cyclic load), failure reliability and flexural strength (30 MPa) compared with those for conventional architecture. The obtained strength is 150 times greater than values reported for polymeric and composite scaffolds and 5 times greater than reported values for ceramic and glass scaffolds at similar porosity. These scaffolds open avenues for treatment of load bearing bone defects in orthopaedic, dental and maxillofacial applications.
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Affiliation(s)
- Seyed-Iman Roohani-Esfahani
- Biomaterials and Tissue Engineering Research Unit, School of Aeronautical Mechanical and Mechatronics Engineering, University of Sydney, 2006, NSW, Australia
| | - Peter Newman
- Biomaterials and Tissue Engineering Research Unit, School of Aeronautical Mechanical and Mechatronics Engineering, University of Sydney, 2006, NSW, Australia
| | - Hala Zreiqat
- Biomaterials and Tissue Engineering Research Unit, School of Aeronautical Mechanical and Mechatronics Engineering, University of Sydney, 2006, NSW, Australia
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