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Goh M, Min K, Kim YH, Tae G. Chemically heparinized PEEK via a green method to immobilize bone morphogenetic protein-2 (BMP-2) for enhanced osteogenic activity. RSC Adv 2024; 14:1866-1874. [PMID: 38192324 PMCID: PMC10772708 DOI: 10.1039/d3ra07660a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 12/25/2023] [Indexed: 01/10/2024] Open
Abstract
Osseointegration remains one of the major challenges in the success of bone-related implants. Recently, polyetheretherketone (PEEK) has emerged as an alternative material in orthopedic and dental applications due to its bone-mimicking mechanical properties. However, its bioinertness resulting in poor osseointegration has limited its potential application. So, the surface modification of PEEK with bone morphogenetic protein-2 (BMP-2) can be a potential approach for improving osseointegration. In this study, we proposed the chemical modification of heparin onto PEEK through an environmentally benign method to exploit the BMP-2 binding affinity of heparin. The heparin was successfully functionalized on the PEEK surface via a combination of ozone and UV treatment without using organic solvents or chemicals. Furthermore, BMP-2 was efficiently immobilized on PEEK and exhibited a sustained release of BMP-2 compared to the pristine PEEK with enhancement of bioactivity in terms of proliferation as well as osteogenic differentiation of MG-63. The significant synergistic effect of BMP-2 and heparin grafting on osteogenic differentiation of MG-63 was observed. Overall, we demonstrated a relatively safe method where no harsh chemical reagent or organic solvent was involved in the process of heparin grafting onto PEEK. The BMP-2 loaded, heparin-grafted PEEK could serve as a potential platform for osseointegration improvement of PEEK-based bone implants.
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Affiliation(s)
- MeeiChyn Goh
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea
| | - Kiyoon Min
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea
| | - Young Ha Kim
- Korea Institute of Science and Technology Hwarang-ro 14-gil 5, Seongbuk-gu Seoul 02792 Republic of Korea
| | - Giyoong Tae
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of Korea
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2
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Sharma A, Krishnan M, Ganganahalli G, Saraswathy S, Johnson R, Iyer SR. Microarray illustrates enhanced mechanistic action towards osteogenesis for magnesium aluminate spinel ceramic-based polyphasic composite scaffold with mesenchymal stem cells and bone morphogenetic protein 2. J Biomed Mater Res B Appl Biomater 2023; 111:1858-1868. [PMID: 35289496 DOI: 10.1002/jbm.b.35051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 02/24/2022] [Accepted: 03/03/2022] [Indexed: 11/10/2022]
Abstract
Spinel (magnesium aluminate MgAl2 O4 ) ceramic-based polyphasic composite scaffold has been recently reported for craniofacial bone tissue engineering. Improving the osteogenic effects of such composite scaffolds with bone morphogenetic proteins (BMP2) is an intensely researched area. This study investigated the gene interactions of this scaffold with BMP2 and mesenchymal stem cells (MSCs). Human bone marrow MSCs were cultured in 3 groups: Group 1-Control (BMSCs), Group 2-BMSC with BMP2, and Group 3-BMSC with scaffold and BMP2. After RNA isolation, gene expression analysis was done by microarray. Differentially expressed genes (DEGs) (-1.0 > fold changes>1 and p value <.05) were studied for their function and gene ontologies using Database for Annotation, Visualization and Integrated Discovery (DAVID). They were further studied by protein-protein interaction network analysis using STRING and MCODE Cytoscape plugin database. Group 3 showed up regulation of 3222 genes against 2158 of Group 2. Group 3 had five annotation clusters with enrichment scores from 2.08 to 3.93. Group 2 had only one cluster. Group 3 showed activation of all major osteogenic pathways: TGF, BMP2, WNT, SMAD, and Notch gene signaling with effects of calcium and magnesium released from the scaffold. Downstream effect of all these caused significant activation of RUNX2, the key transcriptional regulator of osteogenesis in Group 3. STRING and MCODE Cytoscape plugin demonstrated the interactions. The enhanced MSC differentiation for osteogenesis with the addition of BMP2 to the polyphasic composite scaffold proposed promising clinical applications for bone tissue engineering.
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Affiliation(s)
- Anu Sharma
- Department of Dental Research and Implantology, Institute of Nuclear Medicine and Allied Sciences (INMAS), Defence Research and Development Organization (DRDO), Delhi, India
| | - Manu Krishnan
- Department of Dental Research and Implantology, Institute of Nuclear Medicine and Allied Sciences (INMAS), Defence Research and Development Organization (DRDO), Delhi, India
| | - Gurudatta Ganganahalli
- Division of Stem Cell and Gene Therapy Research, Institute of Nuclear Medicine and Allied Sciences (INMAS), Defence Research and Development Organization (DRDO), Delhi, India
| | - Seema Saraswathy
- Department of Biochemistry, Army College of Medical Sciences (ACMS), Delhi, India
| | - Roy Johnson
- Centre for Ceramic Processing, International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), Hyderabad, India
| | - Satish R Iyer
- Directorate General of Dental Services (DGDS), Delhi, India
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3
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Park JH, Koh EB, Seo YJ, Oh HS, Byun JH. BMP-9 Improves the Osteogenic Differentiation Ability over BMP-2 through p53 Signaling In Vitro in Human Periosteum-Derived Cells. Int J Mol Sci 2023; 24:15252. [PMID: 37894931 PMCID: PMC10607732 DOI: 10.3390/ijms242015252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/10/2023] [Accepted: 10/14/2023] [Indexed: 10/29/2023] Open
Abstract
Bone morphogenetic proteins (BMPs) have tremendous therapeutic potential regarding the treatment of bone and musculoskeletal disorders due to their osteo-inductive ability. More than twenty BMPs have been identified in the human body with various functions, such as embryonic development, skeleton genesis, hematopoiesis, and neurogenesis. BMPs can induce the differentiation of MSCs into the osteoblast lineage and promote the proliferation of osteoblasts and chondrocytes. BMP signaling is also involved in tissue remodeling and regeneration processes to maintain homeostasis in adults. In particular, growth factors, such as BMP-2 and BMP-7, have already been approved and are being used as treatments, but it is unclear as to whether they are the most potent BMPs that induce bone formation. According to recent studies, BMP-9 is known to be the most potent inducer of the osteogenic differentiation of mesenchymal stem cells, both in vitro and in vivo. However, its exact role in the skeletal system is still unclear. In addition, research results suggest that the molecular mechanism of BMP-9-mediated bone formation is also different from the previously known BMP family, suggesting that research on signaling pathways related to BMP-9-mediated bone formation is actively being conducted. In this study, we performed a phosphorylation array to investigate the signaling mechanism of BMP-9 compared with BMP-2, another influential bone-forming growth factor, and we compared the downstream signaling system. We present a mechanism for the signal transduction of BMP-9, focusing on the previously known pathway and the p53 factor, which is relatively upregulated compared with BMP-2.
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Affiliation(s)
- Jin-Ho Park
- Department of Nutritional Science, University of Michigan School of Public Health, Ann Arbor, MI 48109, USA
| | - Eun-Byeol Koh
- Department of Oral and Maxillofacial Surgery, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Institute of Medical Sciences, Gyeongsang National University, Jinju 52727, Republic of Korea
- Department of Convergence Medical Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Young-Jin Seo
- Department of Oral and Maxillofacial Surgery, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Institute of Medical Sciences, Gyeongsang National University, Jinju 52727, Republic of Korea
- Department of Convergence Medical Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Hye-Seong Oh
- Department of Oral and Maxillofacial Surgery, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Institute of Medical Sciences, Gyeongsang National University, Jinju 52727, Republic of Korea
- Department of Convergence Medical Science, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - June-Ho Byun
- Department of Oral and Maxillofacial Surgery, Gyeongsang National University School of Medicine, Gyeongsang National University Hospital, Institute of Medical Sciences, Gyeongsang National University, Jinju 52727, Republic of Korea
- Department of Convergence Medical Science, Gyeongsang National University, Jinju 52828, Republic of Korea
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4
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Saberi A, Kouhjani M, Mohammadi M, Hosta-Rigau L. Novel scaffold platforms for simultaneous induction osteogenesis and angiogenesis in bone tissue engineering: a cutting-edge approach. J Nanobiotechnology 2023; 21:351. [PMID: 37770928 PMCID: PMC10536787 DOI: 10.1186/s12951-023-02115-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 09/15/2023] [Indexed: 09/30/2023] Open
Abstract
Despite the recent advances in the development of bone graft substitutes, treatment of critical size bone defects continues to be a significant challenge, especially in the elderly population. A current approach to overcome this challenge involves the creation of bone-mimicking scaffolds that can simultaneously promote osteogenesis and angiogenesis. In this context, incorporating multiple bioactive agents like growth factors, genes, and small molecules into these scaffolds has emerged as a promising strategy. To incorporate such agents, researchers have developed scaffolds incorporating nanoparticles, including nanoparticulate carriers, inorganic nanoparticles, and exosomes. Current paper provides a summary of the latest advancements in using various bioactive agents, drugs, and cells to synergistically promote osteogenesis and angiogenesis in bone-mimetic scaffolds. It also discusses scaffold design properties aimed at maximizing the synergistic effects of osteogenesis and angiogenesis, various innovative fabrication strategies, and ongoing clinical studies.
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Affiliation(s)
- Arezoo Saberi
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Kouhjani
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Marzieh Mohammadi
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Leticia Hosta-Rigau
- DTU Health Tech, Centre for Nanomedicine and Theranostics, Technical University of Denmark, Produktionstorvet, Building 423, 2800, Kgs. Lyngby, Denmark.
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5
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On SW, Park SY, Yi SM, Park IY, Byun SH, Yang BE. Current Status of Recombinant Human Bone Morphogenetic Protein-2 (rhBMP-2) in Maxillofacial Surgery: Should It Be Continued? Bioengineering (Basel) 2023; 10:1005. [PMID: 37760107 PMCID: PMC10525581 DOI: 10.3390/bioengineering10091005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/18/2023] [Accepted: 08/22/2023] [Indexed: 09/29/2023] Open
Abstract
Recombinant human bone morphogenetic protein-2 (rhBMP-2) has shown potential in maxillofacial surgery owing to its osteoinductive properties. However, concerns about its safety and high cost have limited its widespread use. This review presents the status of rhBMP-2 use in maxillofacial surgery, focusing on its clinical application, efficacy, safety, and limitations. Studies have demonstrated rhBMP-2's potential to reduce donor site morbidity and increase bone height in sinus and ridge augmentation; however, it may not outperform autogenous bone grafts. In medication-related osteonecrosis of the jaw treatment, rhBMP-2 has been applied adjunctively with promising results, although its long-term safety requires further investigation. However, in maxillofacial trauma, its application is limited to the restoration of large defects. Safety concerns include postoperative edema and the theoretical risk of carcinogenesis. Although postoperative edema is manageable, the link between rhBMP-2 and cancer remains unclear. The limitations include the lack of an ideal carrier, the high cost of rhBMP-2, and the absence of an optimal dosing regimen. In conclusion, rhBMP-2 is a promising graft material for maxillofacial surgery. However, it has not yet become the gold standard owing to safety and cost concerns. Further research is required to establish long-term safety, optimize dosing, and develop better carriers.
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Affiliation(s)
- Sung-Woon On
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong 18450, Republic of Korea;
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
| | - Sang-Yoon Park
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
- Department of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
- Dental Artificial Intelligence and Robotics R&D Center, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
| | - Sang-Min Yi
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
- Department of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
- Dental Artificial Intelligence and Robotics R&D Center, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
| | - In-Young Park
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
- Dental Artificial Intelligence and Robotics R&D Center, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
- Department of Orthodontics, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
| | - Soo-Hwan Byun
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
- Department of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
- Dental Artificial Intelligence and Robotics R&D Center, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
| | - Byoung-Eun Yang
- Department of Artificial Intelligence and Robotics in Dentistry, Graduated School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea; (S.-Y.P.); (S.-M.Y.); (I.-Y.P.); (S.-H.B.)
- Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
- Department of Oral and Maxillofacial Surgery, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
- Dental Artificial Intelligence and Robotics R&D Center, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
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6
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Oliver-Cervelló L, Martin-Gómez H, Mandakhbayar N, Jo YW, Cavalcanti-Adam EA, Kim HW, Ginebra MP, Lee JH, Mas-Moruno C. Mimicking Bone Extracellular Matrix: From BMP-2-Derived Sequences to Osteogenic-Multifunctional Coatings. Adv Healthc Mater 2022; 11:e2201339. [PMID: 35941083 DOI: 10.1002/adhm.202201339] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Indexed: 01/28/2023]
Abstract
Cell-material interactions are regulated by mimicking bone extracellular matrix on the surface of biomaterials. In this regard, reproducing the extracellular conditions that promote integrin and growth factor (GF) signaling is a major goal to trigger bone regeneration. Thus, the use of synthetic osteogenic domains derived from bone morphogenetic protein 2 (BMP-2) is gaining increasing attention, as this strategy is devoid of the clinical risks associated with this molecule. In this work, the wrist and knuckle epitopes of BMP-2 are screened to identify peptides with potential osteogenic properties. The most active sequences (the DWIVA motif and its cyclic version) are combined with the cell adhesive RGD peptide (linear and cyclic variants), to produce tailor-made biomimetic peptides presenting the bioactive cues in a chemically and geometrically defined manner. Such multifunctional peptides are next used to functionalize titanium surfaces. Biological characterization with mesenchymal stem cells demonstrates the ability of the biointerfaces to synergistically enhance cell adhesion and osteogenic differentiation. Furthermore, in vivo studies in rat calvarial defects prove the capacity of the biomimetic coatings to improve new bone formation and reduce fibrous tissue thickness. These results highlight the potential of mimicking integrin-GF signaling with synthetic peptides, without the need for exogenous GFs.
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Affiliation(s)
- Lluís Oliver-Cervelló
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, 08019, Spain.,Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, 08019, Spain
| | - Helena Martin-Gómez
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, 08019, Spain.,Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, 08019, Spain
| | - Nandin Mandakhbayar
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 330-714, Republic of Korea.,Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 330-714, Republic of Korea.,Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan, 330-714, Republic of Korea
| | - Young-Woo Jo
- Neobiotech Co., Ltd R&D Center, Seoul, 08381, Republic of Korea
| | - Elisabetta Ada Cavalcanti-Adam
- Department of Cellular Biophysics, Growth Factor Mechanobiology group, Max Planck Institute for Medical Research Jahnstraße 29, 69120, Heidelberg, Germany
| | - Hae-Won Kim
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 330-714, Republic of Korea.,Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 330-714, Republic of Korea.,Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan, 330-714, Republic of Korea
| | - Maria-Pau Ginebra
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, 08019, Spain.,Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, 08019, Spain.,Institute for Bioengineering of Catalonia, Barcelona, 08028, Spain
| | - Jung-Hwan Lee
- Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan, 330-714, Republic of Korea.,Department of Nanobiomedical Science & BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, 330-714, Republic of Korea.,Department of Biomaterials Science, School of Dentistry, Dankook University, Cheonan, 330-714, Republic of Korea
| | - Carlos Mas-Moruno
- Biomaterials, Biomechanics and Tissue Engineering Group, Department of Materials Science and Engineering, Universitat Politècnica de Catalunya (UPC), Barcelona, 08019, Spain.,Barcelona Research Center in Multiscale Science and Engineering, UPC, Barcelona, 08019, Spain
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7
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Prouvé E, Rémy M, Feuillie C, Molinari M, Chevallier P, Drouin B, Laroche G, Durrieu MC. Interplay of matrix stiffness and stress relaxation in directing osteogenic differentiation of mesenchymal stem cells. Biomater Sci 2022; 10:4978-4996. [PMID: 35801706 DOI: 10.1039/d2bm00485b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The aim of this study is to investigate the impact of the stiffness and stress relaxation of poly(acrylamide-co-acrylic acid) hydrogels on the osteogenic differentiation of human mesenchymal stem cells (hMSCs). Varying the amount of the crosslinker and the ratio between the monomers enabled the obtainment of hydrogels with controlled mechanical properties, as characterized using unconfined compression and atomic force microscopy (AFM). Subsequently, the surface of the hydrogels was functionalized with a mimetic peptide of the BMP-2 protein, in order to favor the osteogenic differentiation of hMSCs. Finally, hMSCs were cultured on the hydrogels with different stiffness and stress relaxation: 15 kPa - 15%, 60 kPa - 15%, 140 kPa - 15%, 100 kPa - 30%, and 140 kPa - 70%. The cells on hydrogels with stiffnesses from 60 kPa to 140 kPa presented a star-like shape, typical of osteocytes, which has only been reported by our group for two-dimensional substrates. Then, the extent of hMSC differentiation was evaluated by using immunofluorescence and by quantifying the expression of both osteoblast markers (Runx-2 and osteopontin) and osteocyte markers (E11, DMP1, and sclerostin). It was found that a stiffness of 60 kPa led to a higher expression of osteocyte markers as compared to stiffnesses of 15 and 140 kPa. Finally, the strongest expression of osteoblast and osteocyte differentiation markers was observed for the hydrogel with a high relaxation of 70% and a stiffness of 140 kPa.
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Affiliation(s)
- Emilie Prouvé
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de Génie des Mines, de la Métallurgie et des Matériaux, Université Laval, 1065 Avenue de la médecine, Québec G1V 0A6, Canada. .,Axe médecine régénératrice, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Hôpital St-François d'Assise, 10 rue de l'Espinay, Québec G1L 3L5, Canada.,Université de Bordeaux, Chimie et Biologie des Membranes et Nano-Objets (UMR5248 CBMN), Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.,CNRS, CBMN UMR5248, Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.,Bordeaux INP, CBMN UMR5248, Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.
| | - Murielle Rémy
- Université de Bordeaux, Chimie et Biologie des Membranes et Nano-Objets (UMR5248 CBMN), Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.,CNRS, CBMN UMR5248, Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.,Bordeaux INP, CBMN UMR5248, Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.
| | - Cécile Feuillie
- Université de Bordeaux, Chimie et Biologie des Membranes et Nano-Objets (UMR5248 CBMN), Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.,CNRS, CBMN UMR5248, Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.,Bordeaux INP, CBMN UMR5248, Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.
| | - Michael Molinari
- Université de Bordeaux, Chimie et Biologie des Membranes et Nano-Objets (UMR5248 CBMN), Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.,CNRS, CBMN UMR5248, Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.,Bordeaux INP, CBMN UMR5248, Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.
| | - Pascale Chevallier
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de Génie des Mines, de la Métallurgie et des Matériaux, Université Laval, 1065 Avenue de la médecine, Québec G1V 0A6, Canada. .,Axe médecine régénératrice, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Hôpital St-François d'Assise, 10 rue de l'Espinay, Québec G1L 3L5, Canada
| | - Bernard Drouin
- Axe médecine régénératrice, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Hôpital St-François d'Assise, 10 rue de l'Espinay, Québec G1L 3L5, Canada
| | - Gaétan Laroche
- Laboratoire d'Ingénierie de Surface, Centre de Recherche sur les Matériaux Avancés, Département de Génie des Mines, de la Métallurgie et des Matériaux, Université Laval, 1065 Avenue de la médecine, Québec G1V 0A6, Canada. .,Axe médecine régénératrice, Centre de Recherche du Centre Hospitalier Universitaire de Québec, Hôpital St-François d'Assise, 10 rue de l'Espinay, Québec G1L 3L5, Canada
| | - Marie-Christine Durrieu
- Université de Bordeaux, Chimie et Biologie des Membranes et Nano-Objets (UMR5248 CBMN), Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.,CNRS, CBMN UMR5248, Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.,Bordeaux INP, CBMN UMR5248, Allée Geoffroy Saint Hilaire - Bât B14, 33600 Pessac, France.
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Tilkin RG, Mahy JG, Monteiro AP, Belet A, Feijóo J, Laird M, Carcel C, Régibeau N, Goderis B, Grandfils C, Wong Chi Man M, Lambert SD. Protein encapsulation in mesoporous silica: Influence of the mesostructured and pore wall properties. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128629] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Controlled Co-delivery of pPDGF-B and pBMP-2 from intraoperatively bioprinted bone constructs improves the repair of calvarial defects in rats. Biomaterials 2022; 281:121333. [PMID: 34995904 PMCID: PMC8810707 DOI: 10.1016/j.biomaterials.2021.121333] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 12/13/2021] [Accepted: 12/24/2021] [Indexed: 02/03/2023]
Abstract
Intraoperative bioprinting (IOB), which refers to the bioprinting process performed on a live subject in a surgical setting, has made it feasible to directly deliver gene-activated matrices into craniomaxillofacial (CMF) defect sites. In this study, we demonstrated a novel approach to overcome the current limitations of traditionally fabricated non-viral gene delivery systems through direct IOB of bone constructs into defect sites. We used a controlled co-delivery release of growth factors from a gene-activated matrix (an osteogenic bioink loaded with plasmid-DNAs (pDNA)) to promote bone repair. The controlled co-delivery approach was achieved from the combination of platelet-derived growth factor-B encoded plasmid-DNA (pPDGF-B) and chitosan-nanoparticle encapsulating pDNA encoded with bone morphogenetic protein-2 (CS-NPs(pBMP2)), which facilitated a burst release of pPDGF-B in 10 days, and a sustained release of pBMP-2 for 5 weeks in vitro. The controlled co-delivery approach was tested for its potential to repair critical-sized rat calvarial defects. The controlled-released pDNAs from the intraoperatively bioprinted bone constructs resulted in ∼40% bone tissue formation and ∼90% bone coverage area at 6 weeks compared to ∼10% new bone tissue and ∼25% total bone coverage area in empty defects. The delivery of growth factors incorporated within the intraoperatively bioprinted constructs could pose as an effective way to enhance bone regeneration in patients with cranial injuries in the future.
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10
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Li J, Wang C, Gao G, Yin X, Pu X, Shi B, Liu Y, Huang Z, Wang J, Li J, Yin G. MBG/ PGA-PCL composite scaffolds provide highly tunable degradation and osteogenic features. Bioact Mater 2021; 15:53-67. [PMID: 35386352 PMCID: PMC8941175 DOI: 10.1016/j.bioactmat.2021.11.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 11/05/2021] [Accepted: 11/16/2021] [Indexed: 11/02/2022] Open
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11
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Steinle H, Weber J, Stoppelkamp S, Große-Berkenbusch K, Golombek S, Weber M, Canak-Ipek T, Trenz SM, Schlensak C, Avci-Adali M. Delivery of synthetic mRNAs for tissue regeneration. Adv Drug Deliv Rev 2021; 179:114007. [PMID: 34710530 DOI: 10.1016/j.addr.2021.114007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/03/2021] [Accepted: 10/12/2021] [Indexed: 02/06/2023]
Abstract
In recent years, nucleic acid-based therapeutics have gained increasing importance as novel treatment options for disease prevention and treatment. Synthetic messenger RNAs (mRNAs) are promising nucleic acid-based drugs to transiently express desired proteins that are missing or defective. Recently, synthetic mRNA-based vaccines encoding viral proteins have been approved for emergency use against COVID-19. Various types of vehicles, such as lipid nanoparticles (LNPs) and liposomes, are being investigated to enable the efficient uptake of mRNA molecules into desired cells. In addition, the introduction of novel chemical modifications into mRNAs increased the stability, enabled the modulation of nucleic acid-based drugs, and increased the efficiency of mRNA-based therapeutic approaches. In this review, novel and innovative strategies for the delivery of synthetic mRNA-based therapeutics for tissue regeneration are discussed. Moreover, with this review, we aim to highlight the versatility of synthetic mRNA molecules for various applications in the field of regenerative medicine and also discuss translational challenges and required improvements for mRNA-based drugs.
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Affiliation(s)
- Heidrun Steinle
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Josefin Weber
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Sandra Stoppelkamp
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Katharina Große-Berkenbusch
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Sonia Golombek
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Marbod Weber
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Tuba Canak-Ipek
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Sarah-Maria Trenz
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Christian Schlensak
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany
| | - Meltem Avci-Adali
- University Hospital Tuebingen, Department of Thoracic and Cardiovascular Surgery, Calwerstraße 7/1, 72076 Tuebingen, Germany.
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12
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Mantsou A, Pitou M, Papachristou E, Papi RM, Lamprou P, Choli-Papadopoulou T. Effect of a Bone Morphogenetic Protein-2-derived peptide on the expression of tumor marker ZNF217 in osteoblasts and MCF-7 cells. Bone Rep 2021; 15:101125. [PMID: 34632002 PMCID: PMC8487976 DOI: 10.1016/j.bonr.2021.101125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/27/2021] [Accepted: 09/01/2021] [Indexed: 11/24/2022] Open
Abstract
Zinc Finger Protein 217 (ZNF217), a transcription factor and oncogene product, has been found to dysregulate Bone Morphogenetic Protein (BMP) signaling and induce invasion in breast tumors. In this study, the effect of BMP-2 or an active BMP-2 peptide, AISMLYLDEN, on the expression of ZNF217, BMP4 and CDK-inhibitor p21 gene, CDKN1A, was investigated in MCF-7 breast cancer cells. In parallel, the entire protein (BMP-2) as well as the aforementioned peptide were investigated in hDPSCs during osteogenic differentiation. The treatment of MCF-7 cancer cells with different concentrations of peptide AISMLYLDEN showed that the addition of 22.6 ng/ml was more effective in comparison to the other used concentrations. In particular, 48 h after treatment, CDKN1A and BMP4 mRNA levels were substantially increased in contrast to ZNF217 mRNA levels which were decreased. These results are strongly supported by BrdU assay that clearly indicated inhibition of cancer cell proliferation. Taken together, these results open ways for a concurrent use, at appropriate concentrations, of the peptide AISMLYLDEN during conventional therapeutic treatment in breast tumors with a metastatic tendency to the bones. Regarding the effect of the entire protein as well as its peptide on hDPSCs differentiation into osteocytes, the mRNA levels of osteocalcin, an osteogenic marker, showed that the peptide enhanced osteogenesis at a higher degree in comparison to the entire BMP-2 without however altering ZNF217, CDKN1A and BMP4 expression levels, which remained as expected of non-cancer cells.
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Affiliation(s)
- Aglaia Mantsou
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Maria Pitou
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Eleni Papachristou
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Rigini M Papi
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Paraskevas Lamprou
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Theodora Choli-Papadopoulou
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
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13
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Li J, Li J, Wei Y, Xu N, Li J, Pu X, Wang J, Huang Z, Liao X, Yin G. Ion release behavior of vanadium-doped mesoporous bioactive glass particles and the effect of the released ions on osteogenic differentiation of BMSCs via the FAK/MAPK signaling pathway. J Mater Chem B 2021; 9:7848-7865. [PMID: 34586154 DOI: 10.1039/d1tb01479j] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Vanadium is an important trace element in bone and is involved in bone metabolism, bone formation, and bone growth, but the roles of various vanadium ions, especially of pentavalent vanadium, in bone tissue regenerative repair have been underestimated and even misinterpreted for a long time. The main purposes of this study are to investigate the release profile of Si, Ca, P, and V ions from vanadium doped mesoporous bioactive glass (V-MBG) particles and to explore the effect of pentavalent vanadium ions on proliferation and osteogenic differentiation of BMSCs as well as the corresponding osteogenic signaling pathway. On the basis of preparations of V-MBG particles with different pentavalent vanadium contents, the ion release behavior from V-MBG in distilled water and simulated body fluid was systemically investigated. Furthermore, the cytocompatibility and osteogenic effect of V-MBG extracts were studied in rBMSCs, and the related molecular mechanisms were preliminarily discussed. The results of dissolution experiments showed that the V ionic concentration exhibited a burst increase and then a sustained slow increase in the two media. The resultant V ions from 1.0V-MBG, 4.0V-MBG and 10.0V-MBG at 21 days were about 1.1, 5.8, and 12.5 mg L-1 in water, respectively, and 1.6, 4.8 and 12.8 mg L-1 in SBF, respectively. The release behaviors of Si, Ca, P, and V ions were evidently affected by high contents of incorporated vanadium. The cellular results indicated that compared to the control and MBG groups, the V(V) ions in V-MBG extracts at about 19.4 μM markedly promoted the proliferation, the gene and protein expression of BMP-2 and COL-I, and the ALP activity of rBMSCs in non-osteoinductive media, but insignificantly stimulated the OCN protein synthesis. More deeply, V(V) ions at about 19.4 μM significantly upregulated the gene and protein expressions of Itga 2b, FAK, and pERK1/2, demonstrating that V(V) ions could regulate osteogenic differentiation of rBMSCs through the activation of the Itga 2b-FAK-MAPK (pERK1/2) signaling pathway. The in vivo results further confirmed that V-MBG induced and promoted new bone formation in the defect area compared to the PGC and PGC/V-M0 groups. These results would contribute to modify the perception about the biocompatibility and osteogenic promotion of pentavalent vanadium at an appropriate concentration.
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Affiliation(s)
- Jiangfeng Li
- College of Biomedical Engineering, Sichuan University, No. 24, South 1st Section, 1st Ring Road, Chengdu, 610065, P. R. China.
| | - Junying Li
- College of Biomedical Engineering, Sichuan University, No. 24, South 1st Section, 1st Ring Road, Chengdu, 610065, P. R. China.
| | - Yuhao Wei
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Na Xu
- College of Biomedical Engineering, Sichuan University, No. 24, South 1st Section, 1st Ring Road, Chengdu, 610065, P. R. China.
| | - Jingtao Li
- Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Ximing Pu
- College of Biomedical Engineering, Sichuan University, No. 24, South 1st Section, 1st Ring Road, Chengdu, 610065, P. R. China.
| | - Juan Wang
- College of Biomedical Engineering, Sichuan University, No. 24, South 1st Section, 1st Ring Road, Chengdu, 610065, P. R. China.
| | - Zhongbing Huang
- College of Biomedical Engineering, Sichuan University, No. 24, South 1st Section, 1st Ring Road, Chengdu, 610065, P. R. China.
| | - Xiaoming Liao
- College of Biomedical Engineering, Sichuan University, No. 24, South 1st Section, 1st Ring Road, Chengdu, 610065, P. R. China.
| | - Guangfu Yin
- College of Biomedical Engineering, Sichuan University, No. 24, South 1st Section, 1st Ring Road, Chengdu, 610065, P. R. China.
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14
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Abd Rahman F. Gene expression profiling on effect of aspirin on osteogenic differentiation of periodontal ligament stem cells. BDJ Open 2021; 7:35. [PMID: 34531365 PMCID: PMC8446061 DOI: 10.1038/s41405-021-00090-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 07/27/2021] [Accepted: 07/29/2021] [Indexed: 01/07/2023] Open
Abstract
Periodontal ligament (PDL) contains a unique population of mesenchymal stem cells (MSCs), also known as PDL stem cells (PDLSCs). The regenerative properties of PDLSCs hold great potential for its use in stem cells based therapy, particularly for periodontal or bone regeneration. The present study investigated the global gene expression profile in PDLSCs during osteogenic differentiation. MSCs from PDL were isolated from normal permanent human teeth (n = 3). Microarray analysis was used to study the effects of ASA (200, 500, and 1000 μM) on the gene expression profiles in PDLSCs during osteogenic differentiation. Microarray study revealed that ASA was able to modulate PDLSCs gene expression profile. At 200 µM, 315 genes were dysregulated genes (DE), involving 151 upregulated and 164 downregulated genes. At 500 µM, 794 genes were DE, involving of 364 upregulated and 430 downregulated genes. At 1000 µM, the number of DE genes increased to 2035, of which 735 were upregulated and 1300 were downregulated. Bioinformatics analyses of the gene expression data revealed that the majority of DE genes (for 500 and 1000 µM ASA treatment) are involved in osteogenic differentiation. The gene network analysis was carried out using Ingenuity Pathway Analysis (IPA) software, and this revealed that the number of gene groups involved in cell adhesion and extracellular matrix components were increased. This study indicated that ASA could enhance PDLSCs functions and provide evidence for the potential use of ASA with PDLSCs for regenerative dentistry applications, particularly in the areas of periodontal health and regeneration. Periodontal ligament stem cells (PDLSCs) Aspirin (ASA) Microarray Osteogenic.
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Affiliation(s)
- Fazliny Abd Rahman
- Faculty of Dentistry, SEGi University, Kota Damansara, 47810, Petaling Jaya, Selangor, Malaysia.
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15
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Fujioka-Kobayashi M, Marjanowski SD, Kono M, Hino S, Saulacic N, Schaller B. Osteoinductive potential of recombinant BMP-9 in bone defects of mice treated with antiresorptive agents. Int J Oral Maxillofac Surg 2021; 51:566-575. [PMID: 34454793 DOI: 10.1016/j.ijom.2021.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/19/2021] [Accepted: 08/12/2021] [Indexed: 11/26/2022]
Abstract
The aim of the present study was to investigate the effects of recombinant human (rh)BMP-9 on bone regenerative potential in a mouse model of antibody-mediated antiresorptive therapy (AMART). A monoclonal anti-murine receptor activator of nuclear factor-kappa B ligand (RANKL) antibody (mAb) was used to create an AMART model in mice. rhBMP-9 combined with collagen membrane was implanted in calvarial defects in mAb-treated mice. After 4 weeks, the bone formative potential in the defects was evaluated by micro-computed tomography and histological approaches. The groups implanted with rhBMP-9-containing collagen membranes demonstrated substantial osteopromotive potential, with significantly greater new bone volume (Sham + BMP-9 group; 0.86 ± 0.29 mm3 and mAb + BMP-9 group; 0.64 ± 0.16 mm3) than control PBS-membranes (Sham + PBS group; 0.44 ± 0.29 mm3 and mAb + PBS group; 0.24 ± 0.12 mm3) in both sham and mAb-treated mice. In line with in vivo study, bone marrow cells isolated from both sham and mAb-treated mice confirmed greater osteogenic potential upon stimulation with rhBMP-9 in vitro. These findings suggest for the first time that local rhBMP-9 administration might be a strategy to accelerate bone regeneration in the context of AMART.
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Affiliation(s)
- M Fujioka-Kobayashi
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department of Oral and Maxillofacial Surgery, School of Life Dentistry at Tokyo, The Nippon Dental University, Tokyo, Japan.
| | - S D Marjanowski
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - M Kono
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department of Oral and Maxillofacial Surgery, Tokyo Medical University, Tokyo, Japan
| | - S Hino
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland; Department of Oral and Maxillofacial Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - N Saulacic
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - B Schaller
- Department of Cranio-Maxillofacial Surgery, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
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16
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Mausner-Fainberg K, Benhamou M, Golan M, Kimelman NB, Danon U, Marom E, Karni A. Specific Blockade of Bone Morphogenetic Protein-2/4 Induces Oligodendrogenesis and Remyelination in Demyelinating Disorders. Neurotherapeutics 2021; 18:1798-1814. [PMID: 34159538 PMCID: PMC8608985 DOI: 10.1007/s13311-021-01068-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2021] [Indexed: 02/05/2023] Open
Abstract
Oligodendrocyte precursor cells (OPCs) are present in demyelinated lesions of multiple sclerosis (MS) patients. However, their differentiation into functional oligodendrocytes is insufficient, and most lesions evolve into nonfunctional astroglial scars. Blockade of bone morphogenetic protein (BMP) signaling induces differentiation of OPCs into myelin-producing oligodendrocytes. We studied the effect of specific blockade of BMP-2/4 signaling, by intravenous (IV) treatment with anti-BMP-2/4 neutralizing mAb in both the inflammatory model of relapsing experimental autoimmune encephalomyelitis (R-EAE) and the cuprizone-toxic model of demyelination in mice. Administration of anti-BMP-2/4 to R-EAE-induced mice, on day 9 post-immunization (p.i.), ameliorated R-EAE signs, diminished the expression of phospho-SMAD1/5/8, primarily within the astrocytic lineage, increased the numbers of de novo immature and mature oligodendrocytes, and reduced the numbers of newly generated astrocytes within the spinal cord as early as day 18 p.i. This effect was accompanied with elevated remyelination, manifested by increased density of remyelinating axons (0.8 < g-ratios < 1), and reduced fully demyelinated and demyelinating axons, in the anti-BMP-2/4-treated R-EAE mice, studied by electron microscopy. No significant immunosuppressive effect was observed in the CNS and in the periphery, during the peak of the first attack, or at the end of the experiment. Moreover, IV treatment with anti-BMP-2/4 mAb in the cuprizone-challenged mice augmented the numbers of mature oligodendrocytes and remyelination in the corpus callosum during the recovery phase of the disease. Based on our findings, the specific blockade of BMP-2/4 has a therapeutic potential in demyelinating disorders such as MS, by inducing early oligodendrogenesis-mediated remyelination in the affected tissue.
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Affiliation(s)
- Karin Mausner-Fainberg
- Neuroimmunology Laboratory, Neuroimmunology and Multiple Sclerosis Unit, Neurology Division, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, 6423906, Tel Aviv, Israel
| | - Moshe Benhamou
- Neuroimmunology Laboratory, Neuroimmunology and Multiple Sclerosis Unit, Neurology Division, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, 6423906, Tel Aviv, Israel
- Sackler's Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Maya Golan
- Neuroimmunology Laboratory, Neuroimmunology and Multiple Sclerosis Unit, Neurology Division, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, 6423906, Tel Aviv, Israel
| | | | - Uri Danon
- Stem Cell Medicine Ltd, Jerusalem, Israel
| | - Ehud Marom
- Stem Cell Medicine Ltd, Jerusalem, Israel
| | - Arnon Karni
- Neuroimmunology Laboratory, Neuroimmunology and Multiple Sclerosis Unit, Neurology Division, Tel Aviv Sourasky Medical Center, 6 Weizmann Street, 6423906, Tel Aviv, Israel.
- Sackler's Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
- Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel.
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17
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Heinks T, Hettwer A, Hiepen C, Weise C, Gorka M, Knaus P, Mueller TD, Loidl-Stahlhofen A. Optimized expression and purification of a soluble BMP2 variant based on in-silico design. Protein Expr Purif 2021; 186:105918. [PMID: 34044133 DOI: 10.1016/j.pep.2021.105918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 04/11/2021] [Accepted: 05/20/2021] [Indexed: 10/21/2022]
Abstract
Bone morphogenetic protein 2 (BMP21) is a highly interesting therapeutic growth factor due to its strong osteogenic/osteoinductive potential. However, its pronounced aggregation tendency renders recombinant and soluble production troublesome and complex. While prokaryotic expression systems can provide BMP2 in large amounts, the typically insoluble protein requires complex denaturation-renaturation procedures with medically hazardous reagents to obtain natively folded homodimeric BMP2. Based on a detailed aggregation analysis of wildtype BMP2, we designed a hydrophilic variant of BMP2 additionally containing an improved heparin binding site (BMP2-2Hep-7M). Consecutive optimization of BMP2-2Hep-7M expression and purification enabled production of soluble dimeric BMP2-2Hep-7M in high yield in E. coli. This was achieved by a) increasing protein hydrophilicity via introducing seven point mutations within aggregation hot spots of wildtype BMP2 and a longer N-terminus resulting in higher affinity for heparin, b) by employing E. coli strain SHuffle® T7, which enables the structurally essential disulfide-bond formation in BMP2 in the cytoplasm, c) by using BMP2 variant characteristic soluble expression conditions and application of l-arginine as solubility enhancer. The BMP2 variant BMP2-2Hep-7M shows strongly attenuated although not completely eliminated aggregation tendency.
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Affiliation(s)
- Tobias Heinks
- Westfälische Hochschule Recklinghausen, 45665, Recklinghausen, Germany.
| | - Anette Hettwer
- Westfälische Hochschule Recklinghausen, 45665, Recklinghausen, Germany; Universität Würzburg, Department for Molecular Plant Physiology and Biophysics - Botany I, Julius-von-Sachs Institute, 97082, Würzburg, Germany
| | - Christian Hiepen
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, 14195, Berlin, Germany
| | - Christoph Weise
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, 14195, Berlin, Germany
| | - Marcel Gorka
- Westfälische Hochschule Recklinghausen, 45665, Recklinghausen, Germany
| | - Petra Knaus
- Freie Universität Berlin, Institute of Chemistry and Biochemistry, 14195, Berlin, Germany
| | - Thomas D Mueller
- Universität Würzburg, Department for Molecular Plant Physiology and Biophysics - Botany I, Julius-von-Sachs Institute, 97082, Würzburg, Germany
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18
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Wadhwa P, Lee JH, Zhao BC, Cai H, Rim JS, Jang HS, Lee ES. Microcomputed Tomography and Histological Study of Bone Regeneration Using Tooth Biomaterial with BMP-2 in Rabbit Calvarial Defects. SCANNING 2021; 2021:6690221. [PMID: 34055133 PMCID: PMC8131161 DOI: 10.1155/2021/6690221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 04/06/2021] [Accepted: 04/16/2021] [Indexed: 06/12/2023]
Abstract
Our study was aimed to analyze the osteoinductive effect of powdered and block type autogenous bone graft along with bone morphogenetic protein (BMP-2) as compared to synthetic bone graft. Three circular bicortical defects were made in the calvaria of each rabbit and randomly divided into three groups as follows: powdered tooth biomaterial+BMP-2, block tooth biomaterial+BMP-2, and control group: synthetic bone+BMP-2. The samples taken from these defects after 4 and 8 weeks were analyzed histologically along with micro CT analysis. In our study, both powered and block type tooth autogenous bone graft successfully stimulated mesenchymal cells leading to endochondral ossification and bone regeneration. We observed that the powered bone graft material which is acid insoluble especially is preferable as a carrier for BMP-2.
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Affiliation(s)
- Puneet Wadhwa
- Department of Oral and Maxillofacial Surgery, Graduate School of Clinical Dentistry, Korea University Guro Hospital, Seoul 08308, Republic of Korea
| | - Jeong Hun Lee
- Department of Oral and Maxillofacial Surgery, Graduate School of Clinical Dentistry, Korea University Guro Hospital, Seoul 08308, Republic of Korea
| | - Bing Cheng Zhao
- The CONVERSATIONALIST Club, School of Stomatology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong271016, China
| | - HongXin Cai
- The CONVERSATIONALIST Club, School of Stomatology, Shandong First Medical University & Shandong Academy of Medical Sciences, Tai'an, Shandong271016, China
| | - Jae-Suk Rim
- Department of Oral and Maxillofacial Surgery, Graduate School of Clinical Dentistry, Korea University Guro Hospital, Seoul 08308, Republic of Korea
| | - Hyon-Seok Jang
- Department of Oral and Maxillofacial Surgery, Graduate School of Clinical Dentistry, Korea University Guro Hospital, Seoul 08308, Republic of Korea
| | - Eui-Seok Lee
- Department of Oral and Maxillofacial Surgery, Graduate School of Clinical Dentistry, Korea University Guro Hospital, Seoul 08308, Republic of Korea
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19
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Role of rhBMP-7, Fibronectin, And Type I Collagen in Dental Implant Osseointegration Process: An Initial Pilot Study on Minipig Animals. MATERIALS 2021; 14:ma14092185. [PMID: 33923213 PMCID: PMC8123155 DOI: 10.3390/ma14092185] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 12/09/2022]
Abstract
Background: The biological factors involved in dental implant osseointegration need to be investigated to improve implant success. Methods: Twenty-four implants were inserted into the tibias of six minipigs. Bone samples were obtained at 7, 14, and 56 days. Biomolecular analyses evaluated mRNA of BMP-4, -7, Transforming Growth Factor-β2, Interleukin-1β, and Osteocalcin in sites treated with rhBMP-7, Type 1 Collagen, or Fibronectin (FN). Inflammation and osteogenesis were evaluated by histological analyses. Results: At 7 and 14 days, BMP-4 and BMP-7 increased in the sites prepared with rhBMP-7 and FN. BMP-7 remained greater at 56 days in rhBMP-7 and FN sites. BPM-4 at 7 and 14 days increased in Type 1 Collagen sites; BMP-7 increased from day 14. FN increased the TGF-β2 at all experimental times, whilst the rhBMP-7 only did so up to 7 days. IL-1β increased only in collagen-treated sites from 14 days. Osteocalcin was high in FN-treated sites. Neutrophilic granulocytes characterized the inflammatory infiltrate at 7 days, and mononuclear cells at 14 and 56 days. Conclusions: This initial pilot study, in a novel way, evidenced that Type 1 Collagen induced inflammation and did not stimulate bone production; conversely FN or rhBMP-7 showed neo-osteogenetic and anti-inflammatory properties when directly added into implant bone site.
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20
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Lanzillotti C, De Mattei M, Mazziotta C, Taraballi F, Rotondo JC, Tognon M, Martini F. Long Non-coding RNAs and MicroRNAs Interplay in Osteogenic Differentiation of Mesenchymal Stem Cells. Front Cell Dev Biol 2021; 9:646032. [PMID: 33898434 PMCID: PMC8063120 DOI: 10.3389/fcell.2021.646032] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 03/11/2021] [Indexed: 12/23/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have gained great attention as epigenetic regulators of gene expression in many tissues. Increasing evidence indicates that lncRNAs, together with microRNAs (miRNAs), play a pivotal role in osteogenesis. While miRNA action mechanism relies mainly on miRNA-mRNA interaction, resulting in suppressed expression, lncRNAs affect mRNA functionality through different activities, including interaction with miRNAs. Recent advances in RNA sequencing technology have improved knowledge into the molecular pathways regulated by the interaction of lncRNAs and miRNAs. This review reports on the recent knowledge of lncRNAs and miRNAs roles as key regulators of osteogenic differentiation. Specifically, we described herein the recent discoveries on lncRNA-miRNA crosstalk during the osteogenic differentiation of mesenchymal stem cells (MSCs) derived from bone marrow (BM), as well as from different other anatomical regions. The deep understanding of the connection between miRNAs and lncRNAs during the osteogenic differentiation will strongly improve knowledge into the molecular mechanisms of bone growth and development, ultimately leading to discover innovative diagnostic and therapeutic tools for osteogenic disorders and bone diseases.
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Affiliation(s)
- Carmen Lanzillotti
- Section of Experimental Medicine, Department of Medical Sciences, School of Medicine, University of Ferrara, Ferrara, Italy
| | - Monica De Mattei
- Section of Experimental Medicine, Department of Medical Sciences, School of Medicine, University of Ferrara, Ferrara, Italy
| | - Chiara Mazziotta
- Section of Experimental Medicine, Department of Medical Sciences, School of Medicine, University of Ferrara, Ferrara, Italy
| | - Francesca Taraballi
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, Houston, TX, United States.,Orthopedics and Sports Medicine, Houston Methodist Hospital, Houston, TX, United States
| | - John Charles Rotondo
- Section of Experimental Medicine, Department of Medical Sciences, School of Medicine, University of Ferrara, Ferrara, Italy
| | - Mauro Tognon
- Section of Experimental Medicine, Department of Medical Sciences, School of Medicine, University of Ferrara, Ferrara, Italy
| | - Fernanda Martini
- Section of Experimental Medicine, Department of Medical Sciences, School of Medicine, University of Ferrara, Ferrara, Italy.,Laboratory for Technologies of Advanced Therapies, University of Ferrara, Ferrara, Italy
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Wang Y, Sun J, Zhang Y, Liu W, Yang S, Yang J. Stichopus japonicus Polysaccharide Stimulates Osteoblast Differentiation through Activation of the Bone Morphogenetic Protein Pathway in MC3T3-E1 Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:2576-2584. [PMID: 33417444 DOI: 10.1021/acs.jafc.0c06466] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
This study aimed to examine the combined use of bone morphogenetic protein-2 (BMP-2) and polysaccharide isolated from Stichopus japonicus on osteogenic differentiation of MC3T3-E1 cells. Osteogenic differentiation was measured via histochemical staining of alkaline phosphatase (ALP) assay, alizarin red staining of mineralization assay, Western blotting, ELISA, and a qRT-PCR evaluation for the expression of BMP-2, runt-related transcription factor-2 (Runx-2), osteocalcin (OCN), osteopontin (OPN), and collagen type I (Col I) in MC3T3-E1 cells. Immunofluorescence assay was utilized to assess the BMP-2 localized on the cell surface. The results illustrated that SP-2 was able to increase ALP expression and accelerate the mineralization. Osteoblasts cultured on BMP-2/SP-2 substrate increased the expression levels of BMP-2, Runx-2, Col I, OCN, and OPN. SP-2 increased the binding efficiency involving a BMP-2 and its cell surface receptor. The dose of 5 μg/mL SP-2 used showed the best function of inducing osteoblast differentiation. These findings indicated that SP-2 is a more effective enhancer that cooperated with BMP-2 to induce osteoblastic differentiation by utilizing the BMP-2 signaling pathway.
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Affiliation(s)
- Yanjie Wang
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, No.1 Qinggongyuan, Dalian 116034, P. R. China
| | - Jinghe Sun
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, No.1 Qinggongyuan, Dalian 116034, P. R. China
| | - Yanqi Zhang
- Department of Statistics, Iowa State University, 2438 Osborn Drive, Ames, Iowa 50011, United States
| | - Wenzhuan Liu
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, No.1 Qinggongyuan, Dalian 116034, P. R. China
| | - Sheng Yang
- Roy J. Carver Department of Biochemistry, Biophysics & Molecular Biology, Iowa State University, 3192 Molecular Biology Building, Ames, Iowa 50011, United States
| | - Jingfeng Yang
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, No.1 Qinggongyuan, Dalian 116034, P. R. China
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22
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Mazziotta C, Lanzillotti C, Iaquinta MR, Taraballi F, Torreggiani E, Rotondo JC, Otòn-Gonzalez L, Mazzoni E, Frontini F, Bononi I, De Mattei M, Tognon M, Martini F. MicroRNAs Modulate Signaling Pathways in Osteogenic Differentiation of Mesenchymal Stem Cells. Int J Mol Sci 2021; 22:2362. [PMID: 33673409 PMCID: PMC7956574 DOI: 10.3390/ijms22052362] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/18/2021] [Accepted: 02/24/2021] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have been identified in many adult tissues and they have been closely studied in recent years, especially in view of their potential use for treating diseases and damaged tissues and organs. MSCs are capable of self-replication and differentiation into osteoblasts and are considered an important source of cells in tissue engineering for bone regeneration. Several epigenetic factors are believed to play a role in the osteogenic differentiation of MSCs, including microRNAs (miRNAs). MiRNAs are small, single-stranded, non-coding RNAs of approximately 22 nucleotides that are able to regulate cell proliferation, differentiation and apoptosis by binding the 3' untranslated region (3'-UTR) of target mRNAs, which can be subsequently degraded or translationally silenced. MiRNAs control gene expression in osteogenic differentiation by regulating two crucial signaling cascades in osteogenesis: the transforming growth factor-beta (TGF-β)/bone morphogenic protein (BMP) and the Wingless/Int-1(Wnt)/β-catenin signaling pathways. This review provides an overview of the miRNAs involved in osteogenic differentiation and how these miRNAs could regulate the expression of target genes.
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Affiliation(s)
- Chiara Mazziotta
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
| | - Carmen Lanzillotti
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
| | - Maria Rosa Iaquinta
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
| | - Francesca Taraballi
- Center for Musculoskeletal Regeneration, Houston Methodist Research Institute, 6670 Bertner Ave, Houston, TX 77030, USA;
- Orthopedics and Sports Medicine, Houston Methodist Hospital, 6565 Fannin Street, Houston, TX 77030, USA
| | - Elena Torreggiani
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
| | - John Charles Rotondo
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
| | - Lucia Otòn-Gonzalez
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
| | - Elisa Mazzoni
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
| | - Francesca Frontini
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
| | - Ilaria Bononi
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
| | - Monica De Mattei
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
| | - Mauro Tognon
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
| | - Fernanda Martini
- Department of Medical Sciences, Section of Experimental Medicine, School of Medicine, University of Ferrara, 64b Fossato di Mortara Street, 44121 Ferrara, Italy; (C.M.); (C.L.); (M.R.I.); (E.T.); (J.C.R.); (L.O.-G.); (E.M.); (F.F.); (I.B.); (F.M.)
- Laboratory for Technologies of Advanced Therapies (LTTA), University of Ferrara, 70, Eliporto Street, 44121 Ferrara, Italy
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23
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Selective endocytosis of recombinant human BMPs through cell surface heparan sulfate proteoglycans in CHO cells: BMP-2 and BMP-7. Sci Rep 2021; 11:3378. [PMID: 33564092 PMCID: PMC7873082 DOI: 10.1038/s41598-021-82955-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 01/25/2021] [Indexed: 12/15/2022] Open
Abstract
Cell surface heparan sulfate proteoglycan (HSPG)-mediated endocytosis results in poor yields of recombinant human bone morphogenetic proteins (rhBMPs) from CHO cell cultures. Upon incubation of rhBMP-2 and rhBMP-7 with CHO cells at 37 °C, both rhBMP-2 and rhBMP-7 bound to the cell surface HSPGs in CHO cells, but only rhBMP-2 was actively internalized into CHO cells. Cell surface HSPGs were found to serve as the main receptor for rhBMP-2 internalization. It was also found that the cell surface HSPG-mediated endocytosis of rhBMP-2 occurred through both the clathrin- and caveolin-dependent pathways. Blockage of rhBMP-2 internalization by the addition of structural analogs of HSPGs such as dextran sulfate (DS) and heparin dramatically increased rhBMP-2 production in recombinant CHO (rCHO) cell cultures. Compared to the control cultures, addition of DS (1.0 g/L) and heparin (0.2 g/L) resulted in a 22.0- and 19.0-fold increase in the maximum rhBMP-2 concentration, respectively. In contrast, the production of rhBMP-7, which was not internalized into the rCHO cells, did not dramatically increase upon addition of DS and heparin. Taken together, rhBMPs have a different fate in terms of HSPG-mediated internalization in CHO cells. HSPG-mediated endocytosis of each rhBMP should be understood individually to increase the rhBMP yield in rCHO cell cultures.
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Choudhuri KSR, Mishra S. Structural basis of BMP-2 and BMP-7 interactions with antagonists Gremlin-1 and Noggin in Glioblastoma tumors. J Comput Chem 2020; 41:2544-2561. [PMID: 32935366 DOI: 10.1002/jcc.26407] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 06/03/2020] [Accepted: 08/02/2020] [Indexed: 12/27/2022]
Abstract
In Glioblastoma (GBM) brain tumors, both Gremlin-1 and Noggin are reported to bind to BMP and inhibit BMP-signaling, thereby allowing the cell to maintain tumorous morphology. Enlisting the interfacial residues important for protein-protein complex formation between BMPs (BMP-2 and BMP-7) and antagonists (Gremlin-1 and Noggin), we analyzed the structural basis of their interactions. We found possible key mutations that destabilize these complexes, which may prevent GBM development. It was also observed that when the interfacial residues were either mutated to histidine or tryptophan, it led to higher destabilization energy values. Besides, our study of the Noggin interactive model of BMP-2 suggested preferential binding at binding site II over binding site I. In the case of Gremlin-1 and BMPs, our research, along with few previous studies, indicates a close-ended cis-trans interactive model.
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Affiliation(s)
| | - Seema Mishra
- Department of Biochemistry, School of Life Sciences, University of Hyderabad, Hyderabad, Telangana, India
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25
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Levy DS, Grewal R, Le TH. Vitamin K deficiency: an emerging player in the pathogenesis of vascular calcification and an iatrogenic consequence of therapies in advanced renal disease. Am J Physiol Renal Physiol 2020; 319:F618-F623. [PMID: 32830534 DOI: 10.1152/ajprenal.00278.2020] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Vascular calcification is a known complication of chronic kidney disease (CKD). The prevalence of vascular calcification in patients with non-dialysis-dependent CKD stages 3-5 has been shown to be as high as 79% (20). Vascular calcification has been associated with increased risk for mortality, hospital admissions, and cardiovascular disease (6, 20, 50, 55). Alterations in mineral and bone metabolism play a pivotal role in the pathogenesis of vascular calcification in CKD. As CKD progresses, levels of fibroblast growth factor-23, parathyroid hormone, and serum phosphorus increase and levels of 1,25-(OH)2 vitamin D decrease. These imbalances have been linked to the development of vascular calcification. More recently, additional factors have been found to play a role in vascular calcification. Matrix G1a protein (MGP) in its carboxylated form (cMGP) is a potent inhibitor of vascular calcification. Importantly, carboxylation of MGP is dependent on the cofactor vitamin K. In patients with CKD, vitamin K deficiency is prevalent and is exacerbated by warfarin, which is frequently used for anticoagulation. Insufficient bioavailability of vitamin K reduces the amount of cMGP available, and, therefore, it may lead to increased risk of vascular calcification. In vitro studies have shown that in the setting of a high-phosphate environment and vitamin K antagonism, human aortic valve interstitial cells become calcified. In this article, we discuss the pathophysiological consequence of vitamin K deficiency in the setting of altered mineral and bone metabolism, its prevalence, and clinical implications in patients with CKD.
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Affiliation(s)
- David S Levy
- University of Rochester School of Medicine, Rochester, New York
| | | | - Thu H Le
- University of Rochester School of Medicine, Rochester, New York
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26
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Anti-Osteoporotic Effects of Antioxidant Peptides PIISVYWK and FSVVPSPK from Mytilus edulis on Ovariectomized Mice. Antioxidants (Basel) 2020; 9:antiox9090866. [PMID: 32942523 PMCID: PMC7556028 DOI: 10.3390/antiox9090866] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/09/2020] [Accepted: 09/11/2020] [Indexed: 12/17/2022] Open
Abstract
Numerous amounts of evidence suggest that bioactive peptides with diverse physiological activities can be nutraceuticals or potential drug candidates. In this study, blue mussel-derived antioxidant peptides PIISVYWK and FSVVPSPK were subjected to evaluate their osteogenic effect in mouse bone marrow mesenchymal stem cells (mBMMSCs) followed by an in vivo anti-osteoporotic effect. Treatment of PIISVYWK and FSVVPSPK on mBMMSCs stimulated alkaline phosphatase activity and calcification. Western blot results revealed that PIISVYWK and FSVVPSPK increased the expression of bone morphogenetic protein-2/4 (BMP-2/4) followed by upregulating p-Smad1/5, type I collagen, and transcription factors including Runx2 and osterix in mBMMSCs. Two peptides also activated the phosphorylation of MAPKs (p-p38, p-ERK, and p-JNK). Treatment of MAPK inhibitors significantly inhibited the BMP signaling pathway, indicating that PIISVYWK and FSVVPSPK stimulated osteoblast differentiation of mBMMSCs through the MAPK-dependent BMP signaling pathway. The anti-osteoporotic effect of PIISVYWK and FSVVPSPK in ovariectomized (OVX) mice was investigated. Treatment of PIISVYWK and FSVVPSPK for ten weeks showed a notable anti-osteoporotic effect in OVX mice via increasing bone mineral density and other bone parameters compared to OVX mice without peptides. Serum analysis also showed that treatment of PIISVYWK and FSVVPSPK completely reduced osteocalcin and ALP (alkAline phosphatase) activity. Taken together, these results suggest that PIISVYWK and FSVVPSPK could be health-promoting functional food ingredients against osteoporosis.
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Which substances loaded onto collagen scaffolds influence oral tissue regeneration?-an overview of the last 15 years. Clin Oral Investig 2020; 24:3363-3394. [PMID: 32827278 DOI: 10.1007/s00784-020-03520-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/10/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Collagen scaffolds are widely used for guided bone or tissue regeneration. Aiming to enhance their regenerative properties, studies have loaded various substances onto these scaffolds. This review aims to provide an overview of existing literature which conducted in vitro, in vivo, and clinical testing of drug-loaded collagen scaffolds and analyze their outcome of promoting oral regeneration. MATERIALS AND METHODS PubMed, Scopus, and Ovid Medline® were systematically searched for publications from 2005 to 2019. Journal articles assessing the effect of substances on oral hard or soft tissue regeneration, while using collagen carriers, were screened and qualitatively analyzed. Studies were grouped according to their used substance type-biological medical products, pharmaceuticals, and tissue-, cell-, and matrix-derived products. RESULTS A total of 77 publications, applying 36 different substances, were included. Collagen scaffolds were demonstrating favorable adsorption behavior and release kinetics which could even be modified. BMP-2 was investigated most frequently, showing positive effects on oral tissue regeneration. BMP-9 showed comparable results at lower concentrations. Also, FGF2 enhanced bone and periodontal healing. Antibiotics improved the scaffold's anti-microbial activity and reduced the penetrability for bacteria. CONCLUSION Growth factors showed promising results for oral tissue regeneration, while other substances were investigated less frequently. Found effects of investigated substances as well as adsorption and release properties of collagen scaffolds should be considered for further investigation. CLINICAL RELEVANCE Collagen scaffolds are reliable carriers for any of the applied substances. BMP-2, BMP-9, and FGF2 showed enhanced bone and periodontal healing. Antibiotics improved anti-microbial properties of the scaffolds.
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28
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Robust phenotypic maintenance of limb cells during heterogeneous culture in a physiologically relevant polymeric-based constructed graft system. Sci Rep 2020; 10:11739. [PMID: 32678185 PMCID: PMC7367281 DOI: 10.1038/s41598-020-68658-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Accepted: 06/29/2020] [Indexed: 11/08/2022] Open
Abstract
A major challenge during the simultaneous regeneration of multiple tissues is the ability to maintain the phenotypic characteristics of distinct cell populations on one construct, especially in the presence of different exogenous soluble cues such as growth factors. Therefore, in this study, we questioned whether phenotypic maintenance over a distinct population of cells can be achieved by providing biomimetic structural cues relevant to each cell phenotype into the construct's design and controlling the presentation of growth factors in a region-specific manner. To address this question, we developed a polymeric-based constructed graft system (CGS) as a physiologically relevant model that consists of three combined regions with distinct microstructures and growth factor types. Regions A and B of the CGS exhibited similar microstructures to the skin and soft tissues and contained rhPDGF-BB and rhIGF-I, while region C exhibited a similar microstructure to the bone tissue and contained rhBMP-2. Primary rat skin fibroblasts, soft tissue fibroblasts, and osteoblasts were then cultured on regions A, B, and C of the CGS, respectively and their phenotypic characteristics were evaluated in this heterogenous environment. In the absence of growth factors, we found that the structural cues presented in every region played a key role in maintaining the region-specific cell functions and heterogeneity during a heterogeneous culture. In the presence of growth factors, we found that spatially localizing the growth factors at their respective regions resulted in enhanced region-specific cell functions and maintained region-specific cell heterogeneity compared to supplementation, which resulted in a significant reduction of cell growth and loss of phenotype. Our data suggest that providing biomimetic structural cues relevant to each cell phenotype and controlling the presentation of growth factors play a crucial role in ensuring heterogeneity maintenance of distinct cell populations during a heterogeneous culture. The presented CGS herein provides a reliable platform for investigating different cells responses to heterogeneous culture in a physiologically relevant microenvironment. In addition, the model provides a unique platform for evaluating the feasibility and efficacy of different approaches for simultaneously delivering multiple growth factors or molecules from a single construct to achieve enhanced cell response while maintaining cellular heterogeneity during a heterogenous culture.
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Konar M, Sahoo H. Tyrosine mediated conformational change in bone morphogenetic protein – 2: Biophysical implications of protein – phytoestrogen interaction. Int J Biol Macromol 2020; 150:727-736. [DOI: 10.1016/j.ijbiomac.2020.02.113] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 02/10/2020] [Accepted: 02/11/2020] [Indexed: 01/18/2023]
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Apostu D, Lucaciu O, Mester A, Oltean-Dan D, Gheban D, Rares Ciprian Benea H. Tibolone, alendronate, and simvastatin enhance implant osseointegration in a preclinical in vivo model. Clin Oral Implants Res 2020; 31:655-668. [PMID: 32279374 DOI: 10.1111/clr.13602] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 02/13/2020] [Accepted: 03/31/2020] [Indexed: 01/15/2023]
Abstract
OBJECTIVES The objective of the study was to evaluate and compare the effect of different drugs such as simvastatin, alendronate, and tibolone for titanium implant osseointegration enhancement. MATERIALS AND METHODS Eighty female albino Wistar rats were equally divided into five groups: Group I (ovariectomy), Group II (sham ovariectomy), Group III (alendronate + ovariectomy), Group IV (simvastatin + ovariectomy), and Group V (tibolone + ovariectomy). Three months after ovariectomy, we performed bilateral titanium intramedullary nailing in all groups, followed by oral administration of alendronate, simvastatin, or tibolone for 12 weeks. Examinations included micro-CT, mechanical pull-out test, histology, and bone serum markers. RESULTS Peri-implant micro-CT analysis showed a significantly higher overall bone tissue in tibolone compared to the ovariectomy group, while no significant difference was found between the treatment groups. Sham ovariectomy, alendronate, and tibolone groups had a higher body mass density compared to ovariectomy and simvastatin groups. All treatment groups had a greater thickness of the peri-implant compact bone layer compared to ovariectomy group, but the results were not statistically significant. Tibolone presented the highest values in pull-out test, but alendronate showed more consistently positive results compared to other groups. Osteocalcin had in the tibolone group almost three times the value in the ovariectomy group, but the results were not statistically significant. CONCLUSION The hypothesis that alendronate, simvastatin, and tibolone enhance the osseointegration process of intramedullary titanium implants in ovariectomized rats has been accepted, while tibolone could offer the best results.
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Affiliation(s)
- Dragos Apostu
- Department of Orthopaedics and Traumatology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ondine Lucaciu
- Department of Oral Health, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Alexandru Mester
- Department of Oral Health, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Daniel Oltean-Dan
- Department of Orthopaedics and Traumatology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Dan Gheban
- Department of Anatomical Pathology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Horea Rares Ciprian Benea
- Department of Orthopaedics and Traumatology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
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Acri TM, Laird NZ, Hong L, Chakka JL, Shin K, Elangovan S, Salem AK. Inhibition of BMP9 Induced Bone Formation by Salicylic-acid Polymer Capping. MRS ADVANCES 2019; 4:3505-3512. [PMID: 33912355 PMCID: PMC8078835 DOI: 10.1557/adv.2020.61] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
This work focuses on the development of a system to control the formation of bone to complement developments that have enabled potent regeneration of bony tissue. Scaffolds were fabricated with chemically modified RNA encoding for bone morphogenetic protein-9 (cmBMP9) and capped with salicylic acid (SA)-containing polymer (SAPAE). The goal was to determine if SAPAE could inhibit the formation of bone in a pilot animal study since cmBMP9 has been demonstrated to be highly effective in regenerating bone in a rat calvarial defect model. The results indicated that cmBMP9 increased bone formation (30% increase in area covered compared to control) and that SAPAE trended toward reducing the bone formation. These results suggest SAPAE could be useful as a chemical agent in reducing unwanted bone formation in implants loaded with cmBMP9.
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Affiliation(s)
- Timothy M Acri
- University of Iowa, College of Pharmacy, 115 S. Grand Avenue Iowa City, Iowa
| | - Noah Z Laird
- University of Iowa, College of Pharmacy, 115 S. Grand Avenue Iowa City, Iowa
| | - Liu Hong
- University of Iowa, College of Dentistry, 801 Newton Road Iowa City, Iowa
| | - Jaidev L Chakka
- University of Iowa, College of Pharmacy, 115 S. Grand Avenue Iowa City, Iowa
| | - Kyungsup Shin
- University of Iowa, College of Dentistry, 801 Newton Road Iowa City, Iowa
| | - Satheesh Elangovan
- University of Iowa, College of Dentistry, 801 Newton Road Iowa City, Iowa
| | - Aliasger K Salem
- University of Iowa, College of Pharmacy, 115 S. Grand Avenue Iowa City, Iowa
- University of Iowa, College of Dentistry, 801 Newton Road Iowa City, Iowa
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32
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Qasim M, Chae DS, Lee NY. Bioengineering strategies for bone and cartilage tissue regeneration using growth factors and stem cells. J Biomed Mater Res A 2019; 108:394-411. [PMID: 31618509 DOI: 10.1002/jbm.a.36817] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 10/03/2019] [Accepted: 10/10/2019] [Indexed: 12/14/2022]
Abstract
Bone and cartilage tissue engineering is an integrative approach that is inspired by the phenomena associated with wound healing. In this respect, growth factors have emerged as important moieties for the control and regulation of this process. Growth factors act as mediators and control the important physiological functions of bone regeneration. Herein, we discuss the importance of growth factors in bone and cartilage tissue engineering, their loading and delivery strategies, release kinetics, and their integration with biomaterials and stem cells to heal bone fractures. We also highlighted the role of growth factors in the determination of the bone tissue microenvironment based on the reciprocal signaling with cells and biomaterial scaffolds on which future bone and cartilage tissue engineering technologies and medical devices will be based upon.
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Affiliation(s)
- Muhammad Qasim
- Department of BioNano Technology, Gachon University, Seongnam-si, Republic of Korea
| | - Dong Sik Chae
- Department of Orthopedic Surgery, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Republic of Korea
| | - Nae Yoon Lee
- Department of BioNano Technology, Gachon University, Seongnam-si, Republic of Korea
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Wei D, Du Q, Wang S, Cheng S, Wang Y, Li B, Jia D, Zhou Y. Rapid Fabrication, Microstructure, and in Vitro and in Vivo Investigations of a High-Performance Multilayer Coating with External, Flexible, and Silicon-Doped Hydroxyapatite Nanorods on Titanium. ACS Biomater Sci Eng 2019; 5:4244-4262. [PMID: 33417781 DOI: 10.1021/acsbiomaterials.9b00414] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A high-performance multilayer coating with external, flexible, and silicon-doped hydroxyapatite (Si-HA) nanorods was designed using bionics. Plasma electrolytic oxidation (PEO) and the microwave hydrothermal (MH) method were used to rapidly deposit this multilayer coating on a titanium (Ti) substrate, applied for 5 and 10 min, respectively. The bioactive multilayer coating was composed of four layers, and the outermost layer was an external growth layer that consisted of many Si-HA nanorods with a single-crystal structure. The Si-HA nanorods exhibited good flexibility, likely because of their complete single-crystal structures, smooth surfaces, and suitable diameters and lengths. This multilayer coating with a high surface energy was superhydrophilic and exhibited good in vitro bioactivities, such as good apatite formation ability, good cell spreading, and high osteogenic gene expression levels. After implantation in the tibia of rabbits for 16 weeks, almost no soft tissues were formed at the MH treated PEO implant-bone interface. A direct bone contact interface was formed by a bridging effect of the flexible Si-HA nanorods, which further produced a high implant-bone interface bonding strength. The current results demonstrated that the bioactive multilayer layers with the flexible Si-HA nanorods displayed a very good osseointegration ability, showing promising applications in the biomedical field.
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Affiliation(s)
- Daqing Wei
- Institute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.,Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150001, China.,Center of Analysis and Measurement, Harbin Institute of Technology, Harbin 150001, China
| | - Qing Du
- Institute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.,Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Shaodong Wang
- Institute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.,Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Su Cheng
- Department of Mechanical Engineering, School of Architecture and Civil Engineering, Harbin University of Science and Technology, Harbin 150001, China
| | - Yaming Wang
- Institute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.,Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Baoqiang Li
- Institute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.,Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Dechang Jia
- Institute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.,Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Yu Zhou
- Institute for Advanced Ceramics, Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China.,Key Laboratory of Advanced Structural-Functional Integration Materials & Green Manufacturing Technology, Harbin Institute of Technology, Harbin 150001, China
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Induction of Osteogenic Differentiation of Mesenchymal Stem Cells by Bioceramic Root Repair Material. MATERIALS 2019; 12:ma12142311. [PMID: 31331019 PMCID: PMC6678914 DOI: 10.3390/ma12142311] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Revised: 07/15/2019] [Accepted: 07/17/2019] [Indexed: 02/06/2023]
Abstract
This study aimed to evaluate the osteogenic activity of Endosequence Root Repair Material (ERRM) putty using rat mesenchymal stem cells (MSCs). The extract of set ERRM and ProRoot-mineral trioxide aggregate (MTA) (control) was cocultured with rat MSCs and incubated for one, three, and seven days. The cell viability and proliferation were assessed. A quantitative real-time polymerase chain reaction for bone morphogenetic protein-2 (BMP-2), alkaline phosphatase, bone sialoprotein, and osteocalcin gene expression was performed. Both materials enhanced cell viability and proliferation, which increased over time. On day seven, the cells treated with either material exhibited significantly greater cell viability compared with control untreated cells. MSCs treated with either material showed deeper alkaline phosphatase staining after three days compared to control untreated cells. Treated MSCs also exhibited upregulation of the gene expression of bone morphogenetic protein-2, alkaline phosphatase, bone sialoprotein, and osteocalcin. Both ERRM and ProRoot-MTA enhance the osteogenic differentiation of MSCs.
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Abstract
Hepcidin, the main regulator of iron metabolism, is synthesized and released by hepatocytes in response to increased body iron concentration and inflammation. Deregulation of hepcidin expression is a common feature of genetic and acquired iron disorders: in Hereditary Hemochromatosis (HH) and iron-loading anemias low hepcidin causes iron overload, while in Iron Refractory Iron Deficiency Anemia (IRIDA) and anemia of inflammation (AI), high hepcidin levels induce iron-restricted erythropoiesis. Hepcidin expression in the liver is mainly controlled by the BMP-SMAD pathway, activated in a paracrine manner by BMP2 and BMP6 produced by liver sinusoidal endothelial cells. The BMP type I receptors ALK2 and ALK3 are responsible for iron-dependent hepcidin upregulation and basal hepcidin expression, respectively. Characterization of animal models with genetic inactivation of the key components of the pathway has suggested the existence of two BMP/SMAD pathway branches: the first ALK3 and HH proteins dependent, responsive to BMP2 for basal hepcidin activation, and the second ALK2 dependent, activated by BMP6 in response to increased tissue iron. The erythroid inhibitor of hepcidin Erythroferrone also impacts on the liver BMP-SMAD pathway although its effect is blunted by pathway hyper-activation. The liver BMP-SMAD pathway is required also in inflammation to cooperate with JAK2/STAT3 signaling for full hepcidin activation. Pharmacologic targeting of BMP-SMAD pathway components or regulators may improve the outcome of both genetic and acquired disorders of iron overload and deficiency by increasing or inhibiting hepcidin expression.
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Subbiah R, Guldberg RE. Materials Science and Design Principles of Growth Factor Delivery Systems in Tissue Engineering and Regenerative Medicine. Adv Healthc Mater 2019; 8:e1801000. [PMID: 30398700 DOI: 10.1002/adhm.201801000] [Citation(s) in RCA: 111] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/13/2018] [Indexed: 01/22/2023]
Abstract
Growth factors (GFs) are signaling molecules that direct cell development by providing biochemical cues for stem cell proliferation, migration, and differentiation. GFs play a key role in tissue regeneration, but one major limitation of GF-based therapies is dosage-related adverse effects. Additionally, the clinical applications and efficacy of GFs are significantly affected by the efficiency of delivery systems and other pharmacokinetic factors. Hence, it is crucial to design delivery systems that provide optimal activity, stability, and tunable delivery for GFs. Understanding the physicochemical properties of the GFs and the biomaterials utilized for the development of biomimetic GF delivery systems is critical for GF-based regeneration. Many different delivery systems have been developed to achieve tunable delivery kinetics for single or multiple GFs. The identification of ideal biomaterials with tunable properties for spatiotemporal delivery of GFs is still challenging. This review characterizes the types, properties, and functions of GFs, the materials science of widely used biomaterials, and various GF loading strategies to comprehensively summarize the current delivery systems for tunable spatiotemporal delivery of GFs aimed for tissue regeneration applications. This review concludes by discussing fundamental design principles for GF delivery vehicles based on the interactive physicochemical properties of the proteins and biomaterials.
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Affiliation(s)
- Ramesh Subbiah
- Parker H. Petit Institute for Bioengineering and Bioscience; George W. Woodruff School of Mechanical Engineering; Georgia Institute of Technology; Atlanta GA 30332 USA
| | - Robert E. Guldberg
- Parker H. Petit Institute for Bioengineering and Bioscience; George W. Woodruff School of Mechanical Engineering; Georgia Institute of Technology; Atlanta GA 30332 USA
- Phil and Penny Knight Campus for Accelerating Scientific Impact; 6231 University of Oregon; Eugene OR 97403 USA
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37
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Lopes D, Martins-Cruz C, Oliveira MB, Mano JF. Bone physiology as inspiration for tissue regenerative therapies. Biomaterials 2018; 185:240-275. [PMID: 30261426 PMCID: PMC6445367 DOI: 10.1016/j.biomaterials.2018.09.028] [Citation(s) in RCA: 200] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 09/15/2018] [Accepted: 09/17/2018] [Indexed: 12/14/2022]
Abstract
The development, maintenance of healthy bone and regeneration of injured tissue in the human body comprise a set of intricate and finely coordinated processes. However, an analysis of current bone regeneration strategies shows that only a small fraction of well-reported bone biology aspects has been used as inspiration and transposed into the development of therapeutic products. Specific topics that include inter-scale bone structural organization, developmental aspects of bone morphogenesis, bone repair mechanisms, role of specific cells and heterotypic cell contact in the bone niche (including vascularization networks and immune system cells), cell-cell direct and soluble-mediated contact, extracellular matrix composition (with particular focus on the non-soluble fraction of proteins), as well as mechanical aspects of native bone will be the main reviewed topics. In this Review we suggest a systematic parallelization of (i) fundamental well-established biology of bone, (ii) updated and recent advances on the understanding of biological phenomena occurring in native and injured tissue, and (iii) critical discussion of how those individual aspects have been translated into tissue regeneration strategies using biomaterials and other tissue engineering approaches. We aim at presenting a perspective on unexplored aspects of bone physiology and how they could be translated into innovative regeneration-driven concepts.
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Affiliation(s)
- Diana Lopes
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago,, 3810 193 Aveiro, Portugal
| | - Cláudia Martins-Cruz
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago,, 3810 193 Aveiro, Portugal
| | - Mariana B Oliveira
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago,, 3810 193 Aveiro, Portugal.
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, Campus Universitário de Santiago,, 3810 193 Aveiro, Portugal.
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Awasthi H, Mani D, Singh D, Gupta A. The underlying pathophysiology and therapeutic approaches for osteoporosis. Med Res Rev 2018; 38:2024-2057. [DOI: 10.1002/med.21504] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 02/28/2018] [Accepted: 04/04/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Harshika Awasthi
- Herbal Medicinal Products Department; CSIR-Central Institute of Medicinal and Aromatic Plants; Lucknow India
| | - Dayanandan Mani
- Herbal Medicinal Products Department; CSIR-Central Institute of Medicinal and Aromatic Plants; Lucknow India
| | - Divya Singh
- Division of Endocrinology; CSIR-Central Drug Research Institute; Lucknow India
| | - Atul Gupta
- Medicinal Chemistry Department; CSIR-Central Institute of Medicinal and Aromatic Plants; Lucknow India
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Divya D, Bhattacharya TK, Gnana Prakash M, Chatterjee RN, Shukla R, Guru Vishnu PB, Vinoth A, Dushyanth K. Molecular characterization and expression profiling of BMP 3 gene in broiler and layer chicken. Mol Biol Rep 2018; 45:477-495. [DOI: 10.1007/s11033-018-4184-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 04/04/2018] [Indexed: 11/29/2022]
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40
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Robert AW, Angulski ABB, Spangenberg L, Shigunov P, Pereira IT, Bettes PSL, Naya H, Correa A, Dallagiovanna B, Stimamiglio MA. Gene expression analysis of human adipose tissue-derived stem cells during the initial steps of in vitro osteogenesis. Sci Rep 2018; 8:4739. [PMID: 29549281 PMCID: PMC5856793 DOI: 10.1038/s41598-018-22991-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 02/06/2018] [Indexed: 12/11/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have been widely studied with regard to their potential use in cell therapy protocols and regenerative medicine. However, a better comprehension about the factors and molecular mechanisms driving cell differentiation is now mandatory to improve our chance to manipulate MSC behavior and to benefit future applications. In this work, we aimed to study gene regulatory networks at an early step of osteogenic differentiation. Therefore, we analyzed both the total mRNA and the mRNA fraction associated with polysomes on human adipose tissue-derived stem cells (hASCs) at 24 h of osteogenesis induction. The RNA-seq results evidenced that hASC fate is not compromised with osteogenesis at this time and that 21 days of continuous cell culture stimuli are necessary for full osteogenic differentiation of hASCs. Furthermore, early stages of osteogenesis induction involved gene regulation that was linked to the management of cell behavior in culture, such as the control of cell adhesion and proliferation. In conclusion, although discrete initial gene regulation related to osteogenesis occur, the first 24 h of induction is not sufficient to trigger and drive in vitro osteogenic differentiation of hASCs.
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Affiliation(s)
- Anny Waloski Robert
- Instituto Carlos Chagas, Fiocruz-Paraná. Rua Professor Algacyr Munhoz Mader, 3775, Curitiba, PR, 81350-010, Brazil
| | - Addeli Bez Batti Angulski
- Instituto Carlos Chagas, Fiocruz-Paraná. Rua Professor Algacyr Munhoz Mader, 3775, Curitiba, PR, 81350-010, Brazil
| | - Lucia Spangenberg
- Unidad de Bioinformática, Institut Pasteur Montevideo. Mataojo 2020, Montevideo, 11400, Uruguay
| | - Patrícia Shigunov
- Instituto Carlos Chagas, Fiocruz-Paraná. Rua Professor Algacyr Munhoz Mader, 3775, Curitiba, PR, 81350-010, Brazil
| | - Isabela Tiemy Pereira
- Instituto Carlos Chagas, Fiocruz-Paraná. Rua Professor Algacyr Munhoz Mader, 3775, Curitiba, PR, 81350-010, Brazil
| | | | - Hugo Naya
- Unidad de Bioinformática, Institut Pasteur Montevideo. Mataojo 2020, Montevideo, 11400, Uruguay
| | - Alejandro Correa
- Instituto Carlos Chagas, Fiocruz-Paraná. Rua Professor Algacyr Munhoz Mader, 3775, Curitiba, PR, 81350-010, Brazil
| | - Bruno Dallagiovanna
- Instituto Carlos Chagas, Fiocruz-Paraná. Rua Professor Algacyr Munhoz Mader, 3775, Curitiba, PR, 81350-010, Brazil
| | - Marco Augusto Stimamiglio
- Instituto Carlos Chagas, Fiocruz-Paraná. Rua Professor Algacyr Munhoz Mader, 3775, Curitiba, PR, 81350-010, Brazil.
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41
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Andrei M, Dinischiotu A, Didilescu AC, Ionita D, Demetrescu I. Periodontal materials and cell biology for guided tissue and bone regeneration. Ann Anat 2017; 216:164-169. [PMID: 29289707 DOI: 10.1016/j.aanat.2017.11.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 10/07/2017] [Accepted: 11/15/2017] [Indexed: 02/06/2023]
Abstract
The present review is intended to find links between periodontal materials of the dentomaxillary apparatus and cell biology at the beginning of a century fraught with various forms of periodontal diseases and needing new treatment strategies. The manuscript has two different parts. The first describes the anatomy of tooth supporting structures, as well as related pathologies. The second part is related to cell and molecular biology in the context of periodontal regeneration.
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Affiliation(s)
- Mihai Andrei
- Division of Embryology, Faculty of Dental Medicine, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
| | - Anca Dinischiotu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 91-95 Splaiul Independentei, Bucharest 050095, Romania
| | - Andreea Cristiana Didilescu
- Division of Embryology, Faculty of Dental Medicine, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Romania
| | - Daniela Ionita
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu, 011061 Bucharest, Romania
| | - Ioana Demetrescu
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu, 011061 Bucharest, Romania; Academy of Romanian Scientist, Splaiul Independentei 54, 050094 Bucharest, Romania
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42
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Yao Q, Jing J, Zeng Q, Lu TL, Liu Y, Zheng X, Chen Q. Bilayered BMP2 Eluting Coatings on Graphene Foam by Electrophoretic Deposition: Electroresponsive BMP2 Release and Enhancement of Osteogenic Differentiation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:39962-39970. [PMID: 29076717 DOI: 10.1021/acsami.7b10180] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Recent development of three-dimensional graphene foam (GF) with conductive and interconnected macroporous structure is attracting particular attention as platforms for tissue engineering. However, widespread application of GF as bone scaffolds is restricted due to its poor mechanical property and inert surface character. To overcome these drawbacks, in this study, a bilayered biopolymer coating was designed and successfully deposited covering the entire surface area of GF skeleton. A poly(lactic-co-glycolic acid) layer was first dip-coated to strengthen the GF substrate, followed by the electrophoretic codeposition of a hybrid layer, consisting of chitosan and BMP2, to functionalize GF with the ability to recruit and induce osteogenic differentiation of hMSC. Our data indicated that the mechanical property of GF was significantly increased without compromising the macroporous structure. Importantly, the immobilized BMP2 exhibited sustained and electroresponsive release profiles with rapid response to the electric field exerted on GF, which is beneficial to balancing BMP2 dose in a physiological environment. Moreover, the osteogenic differentiation of hMSC was significantly improved on the functionalized GF. Taking advantage of the unique macrostructure from GF as well as the superior mechanical properties and BMP2 release profile supported by the deposited coatings, it is therefore expected that the developed GF could be a promising alternative as innovative bone-forming favorable scaffolds.
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Affiliation(s)
| | - Jiajia Jing
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University , Xi'an 710072, China
| | - Qingyan Zeng
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University , Xi'an 710072, China
| | - T L Lu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University , Xi'an 710072, China
| | | | | | - Qiang Chen
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University , Xi'an 710072, China
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43
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Formulation, Delivery and Stability of Bone Morphogenetic Proteins for Effective Bone Regeneration. Pharm Res 2017; 34:1152-1170. [PMID: 28342056 PMCID: PMC5418324 DOI: 10.1007/s11095-017-2147-x] [Citation(s) in RCA: 159] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 03/17/2017] [Indexed: 12/22/2022]
Abstract
Bone morphogenetic proteins (BMPs) are responsible for bone formation during embryogenesis and bone regeneration and remodeling. The osteoinductive action of BMPs, especially BMP-2 and BMP-7, has led to their use in a range of insurmountable treatments where intervention is required for effective bone regeneration. Introduction of BMP products to the market, however, was not without reports of multiple complications and side effects. Aiming for optimization of the therapeutic efficacy and safety, efforts have been focused on improving the delivery of BMPs to lower the administered dose, localize the protein, and prolong its retention time at the site of action. A major challenge with these efforts is that the protein stability should be maintained. With this review we attempt to shed light on how the stability of BMPs can be affected in the formulation and delivery processes. We first provide a short overview of the current standing of the complications experienced with BMP products. We then discuss the different delivery parameters studied in association with BMPs, and their influence on the efficacy and safety of BMP treatments. In particular, the literature addressing the stability of BMPs and their possible interactions with components of the delivery system as well as their sensitivity to conditions of the formulation process is reviewed. In summary, recent developments in the fields of bioengineering and biopharmaceuticals suggest that a good understanding of the relationship between the formulation/delivery conditions and the stability of growth factors such as BMPs is a prerequisite for a safe and effective treatment.
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44
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Venkatesan J, Anil S, Kim SK, Shim MS. Chitosan as a vehicle for growth factor delivery: Various preparations and their applications in bone tissue regeneration. Int J Biol Macromol 2017; 104:1383-1397. [PMID: 28109812 DOI: 10.1016/j.ijbiomac.2017.01.072] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/05/2017] [Accepted: 01/15/2017] [Indexed: 02/04/2023]
Abstract
The replacement of conventional autografts and allografts by bone fragments constructed from alternate materials, cells, and molecules (growth factors, drugs, etc.) is an exciting prospect in the field of bone tissue engineering. Bone morphogenetic protein-2 (BMP-2) is a growth factor that has been extensively studied from this point of view. This review analyzes the relevance of chitosan and its derivatives and composites with various materials such as ceramics, heparin, silica, stem cells, titanium implants, etc., in terms of delivering BMP-2 for the purpose of bone regeneration. Chitosan offers the versatility to be modified into any shapes or sizes including conversion to nanoparticles, microspheres, nanofibers, porous scaffolds, and films. The results presented in this review clearly demonstrate that chitosan-based materials are biocompatible and have the potential to systematically and sustainably release BMP-2 where required. This release results in enhanced cell proliferation levels, enhancement of alkaline phosphatase activity, increased differentiation as well as increased mineralization under in vitro and in vivo conditions. This review also shines a spotlight on the currently developed chitosan-based products that are being used for BMP-2 delivery.
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Affiliation(s)
| | - Sukumaran Anil
- Department of Preventive Dental Sciences, College of Dentistry, Prince Sattam Bin Abdulaziz University, 153, AIkharj, 11942, Riyadh, Saudi Arabia
| | - Se-Kwon Kim
- Institute for Life Science of Seogo (ILSS), Kolmar Korea Co, Seoul 137-876, Republic of Korea.
| | - Min Suk Shim
- Division of Bioengineering, Incheon National University, Incheon 406-772, Republic of Korea.
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45
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Khorsand B, Elangovan S, Hong L, Dewerth A, Kormann MSD, Salem AK. A Comparative Study of the Bone Regenerative Effect of Chemically Modified RNA Encoding BMP-2 or BMP-9. AAPS JOURNAL 2017; 19:438-446. [PMID: 28074350 DOI: 10.1208/s12248-016-0034-8] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 12/20/2016] [Indexed: 02/02/2023]
Abstract
Employing cost-effective biomaterials to deliver chemically modified ribonucleic acid (cmRNA) in a controlled manner addresses the high cost, safety concerns, and lower transfection efficiency that exist with protein and gene therapeutic approaches. By eliminating the need for nuclear entry, cmRNA therapeutics can potentially overcome the lower transfection efficiencies associated with non-viral gene delivery systems. Here, we investigated the osteogenic potential of cmRNA-encoding BMP-9, in comparison to cmRNA-encoding BMP-2. Polyethylenimine (PEI) was used as a vector to increase in vitro transfection efficacy. Complexes of PEI-cmRNA (encoding BMP-2 or BMP-9) were fabricated at an amine (N) to phosphate (P) ratio of 10 and characterized for transfection efficacy in vitro using human bone marrow stromal cells (BMSCs). The osteogenic potential of BMSCs treated with these complexes was determined by evaluating the expression of bone-specific genes as well as through the detection of bone matrix deposition. It was found that alkaline phosphatase (ALP) expression 3 days post transfection in the group treated with BMP-9-cmRNA was significantly higher than that in the group that received BMP-2-cmRNA treatment. Alizarin red staining and atomic absorption spectroscopy demonstrated enhanced osteogenic differentiation as evidenced by increased bone matrix production by the BMSCs treated with BMP-9-cmRNA when compared to cells treated with BMP-2-cmRNA. In vivo studies showed increased bone formation in calvarial defects treated with the BMP-9-cmRNA and BMP-2-cmRNA collagen scaffolds when compared to empty defects. The connectivity density of the regenerated bone was higher (2-fold-higher) in the group that received BMP-9-cmRNA compared to BMP-2-cmRNA. Together, these findings suggest that cmRNA-activated matrix encoding osteogenic molecules can provide a powerful strategy for bone regeneration with significant clinical translational potential.
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Affiliation(s)
- Behnoush Khorsand
- Division of Pharmaceutics and Translational Therapeutics, University of Iowa College of Pharmacy, Iowa City, Iowa, USA
| | - Satheesh Elangovan
- Department of Periodontics, University of Iowa College of Dentistry, Iowa City, Iowa, USA.
| | - Liu Hong
- Department of Prosthodontics, University of Iowa College of Dentistry, Iowa City, Iowa, USA
| | - Alexander Dewerth
- Department of Pediatrics (Section I), Translational Genomics and Gene Therapy, University of Tübingen, Wilhelmstr. 27, 72074, Tübingen, Germany
| | - Michael S D Kormann
- Department of Pediatrics (Section I), Translational Genomics and Gene Therapy, University of Tübingen, Wilhelmstr. 27, 72074, Tübingen, Germany
| | - Aliasger K Salem
- Division of Pharmaceutics and Translational Therapeutics, University of Iowa College of Pharmacy, Iowa City, Iowa, USA. .,Department of Periodontics, University of Iowa College of Dentistry, Iowa City, Iowa, USA.
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46
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Alves SA, Ribeiro AR, Gemini-Piperni S, Silva RC, Saraiva AM, Leite PE, Perez G, Oliveira SM, Araujo JR, Archanjo BS, Rodrigues ME, Henriques M, Celis JP, Shokuhfar T, Borojevic R, Granjeiro JM, Rocha LA. TiO2nanotubes enriched with calcium, phosphorous and zinc: promising bio-selective functional surfaces for osseointegrated titanium implants. RSC Adv 2017. [DOI: 10.1039/c7ra08263k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
TiO2nanotubes enriched with Ca, P, and Zn by reverse polarization anodization, are promising bio-selective functional structures for osseointegrated titanium implants.
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47
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Addi C, Murschel F, De Crescenzo G. Design and Use of Chimeric Proteins Containing a Collagen-Binding Domain for Wound Healing and Bone Regeneration. TISSUE ENGINEERING PART B-REVIEWS 2016; 23:163-182. [PMID: 27824290 DOI: 10.1089/ten.teb.2016.0280] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Collagen-based biomaterials are widely used in the field of tissue engineering; they can be loaded with biomolecules such as growth factors (GFs) to modulate the biological response of the host and thus improve its potential for regeneration. Recombinant chimeric GFs fused to a collagen-binding domain (CBD) have been reported to improve their bioavailability and the host response, especially when combined with an appropriate collagen-based biomaterial. This review first provides an extensive description of the various CBDs that have been fused to proteins, with a focus on the need for accurate characterization of their interaction with collagen. The second part of the review highlights the benefits of various CBD/GF fusion proteins that have been designed for wound healing and bone regeneration.
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Affiliation(s)
- Cyril Addi
- Biomedical Science and Technology Research Group, Bio-P2 Research Unit , Department of Chemical Engineering, École Polytechnique de Montréal, Montréal, Canada
| | - Frederic Murschel
- Biomedical Science and Technology Research Group, Bio-P2 Research Unit , Department of Chemical Engineering, École Polytechnique de Montréal, Montréal, Canada
| | - Gregory De Crescenzo
- Biomedical Science and Technology Research Group, Bio-P2 Research Unit , Department of Chemical Engineering, École Polytechnique de Montréal, Montréal, Canada
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