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Gan Q, Chen L, Bei HP, Ng SW, Guo H, Liu G, Pan H, Liu C, Zhao X, Zheng Z. Artificial cilia for soft and stable surface covalent immobilization of bone morphogenetic protein-2. Bioact Mater 2023; 24:551-562. [PMID: 36714333 PMCID: PMC9845954 DOI: 10.1016/j.bioactmat.2022.12.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 12/29/2022] [Accepted: 12/29/2022] [Indexed: 01/14/2023] Open
Abstract
Preservation of growth factor sensitivity and bioactivity (e.g., bone morphogenetic protein-2 (BMP-2)) post-immobilization to tissue engineering scaffolds remains a great challenge. Here, we develop a stable and soft surface modification strategy to address this issue. BMP-2 (a model growth factor) is covalently immobilized onto homogeneous poly (glycidyl methacrylate) (PGMA) polymer brushes which are grafted onto substrate surfaces (Au, quartz glass, silica wafer, or common biomaterials) via surface-initiated atom transfer radical polymerization. This surface modification method multiplies the functionalized interfacial area; it is simple, fast, gentle, and has little effect on the loaded protein owing to the cilia motility. The immobilized BMP-2 (i-BMP-2) on the surface of homogeneous PGMA polymer brushes exhibits excellent bioactivity (⁓87% bioactivity of free BMP-2 in vitro and 20%-50% higher than scaffolds with free BMP-2 in vivo), with conformation and secondary structure well-preserved after covalent immobilization and ethanol sterilization. Moreover, the osteogenic activity of i-BMP-2 on the nanoline pattern (PGMA-poly (N-isopropylacrylamide)) shows ⁓110% bioactivity of free BMP-2. This is superior compared to conventional protein covalent immobilization strategies in terms of both bioactivity preservation and therapeutic efficacy. PGMA polymer brushes can be used to modify surfaces of different tissue-engineered scaffolds, which facilitates in situ immobilization of growth factors, and accelerates repair of a wide range of tissue types.
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Affiliation(s)
- Qi Gan
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, 99077, Hong Kong Special Administrative Region of China,Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Lina Chen
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, 99077, Hong Kong Special Administrative Region of China
| | - Ho-Pan Bei
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region of China
| | - Sze-Wing Ng
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, 99077, Hong Kong Special Administrative Region of China
| | - Han Guo
- Shanghai Synchrotron Radiation Facility, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, PR China
| | - Guoqiang Liu
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, 99077, Hong Kong Special Administrative Region of China
| | - Hao Pan
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, PR China,Corresponding author.
| | - Xin Zhao
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region of China,Corresponding author.
| | - Zijian Zheng
- Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, 99077, Hong Kong Special Administrative Region of China,Department of Applied Biology and Chemical Technology, Faculty of Science, The Hong Kong Polytechnic University, Kowloon, 99077, Hong Kong Special Administrative Region of China,Corresponding author. Laboratory for Advanced Interfacial Materials and Devices, School of Fashion and Textiles, The Hong Kong Polytechnic University, Kowloon, 99077, Hong Kong Special Administrative Region of China.
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Enhanced osteogenic effect in reduced BMP-2 doses with siNoggin transfected pre-osteoblasts in 3D silk scaffolds. Int J Pharm 2022; 612:121352. [PMID: 34883207 DOI: 10.1016/j.ijpharm.2021.121352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/27/2021] [Accepted: 12/02/2021] [Indexed: 01/02/2023]
Abstract
Bone morphogenetic proteins (BMPs), especially BMP-2, are being increasingly used in bone tissue engineering due to its osteo-inductive effects. Although recombinant human BMP-2 (rhBMP-2) was approved by Food and Drug Administration (FDA) to use for bone repair, its high doses cause undesired side effects. In order to reduce the BMP-2 dose for enhanced osteogenic differentiation, in this study we decided to suppress the synthesis of Noggin protein, the primary antagonist of BMP-2, on the MC3T3-E1 cells using Noggin targeted small interfering RNA (siRNA). Unlike other studies, Noggin siRNA (siNoggin) transfected cells were seeded on silk scaffolds, and osteogenic differentiation was investigated for a long-term period (21 days) with MTT, qPCR, SEM/EDS, and histological analysis. Besides, siNoggin transfected MC3T3-E1 cells were evaluated as a new cell source for tissue engineering studies. It was determined that Nog gene expression was suppressed in the siNoggin group and Ocn gene expression increased 5-fold compared to the control group (*p < 0.05). The osteogenic effect of BMP-2 was clearly observed in siNoggin transfected cells. According to the SEM/EDS analysis, the siNoggin group has mineral structures clustered on cells, which contain intense Ca and P elements. Histological staining showed that the siNoggin group has a more intense mineralized area than that of the control group. In conclusion, this study indicated that Noggin silencing by siRNA induces osteogenic differentiation in reduced BMP-2 doses for scaffold-based bone regeneration. This non-gene integration strategy has as a safe therapeutic potential to enhance tissue regeneration.
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Jeong J, Park K, Kim J. Synthesis and biological evaluation of dimeric peptide derivatives as proliferation‐stimulating agents in human follicle dermal papilla cells. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12395] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jisu Jeong
- Department of Medical Laboratory Science School of Health Science, Dankook University Cheonan South Korea
| | - Kyeong‐Yong Park
- Department of Integrated Material's Development CHA Meditech Co., Ltd Daejeon South Korea
| | - Jiyeon Kim
- Department of Medical Laboratory Science School of Health Science, Dankook University Cheonan South Korea
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Brzezińska O, Łukasik Z, Makowska J, Walczak K. Role of Vitamin C in Osteoporosis Development and Treatment-A Literature Review. Nutrients 2020; 12:E2394. [PMID: 32785080 PMCID: PMC7469000 DOI: 10.3390/nu12082394] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/02/2020] [Accepted: 08/05/2020] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis and associated low energy fractures are a significant clinical problem, especially in the elderly population. The occurrence of a hip fracture is associated with significant mortality and a high risk of disability. For this, apart from the treatment of osteoporosis, effective prevention of both the development of the disease and related fractures is extremely important. One aspect of osteoporosis prevention is proper dietary calcium intake and normal vitamin D3 levels. However, there is some evidence for a potential role of vitamin C in osteoporosis and fracture prevention, too. This review aims to summarize the current knowledge about the role of vitamin C in osteoporosis development, prevention and treatment. The PubMed/Medline search on the role of vitamin C in bone metabolism database was performed for articles between 2000 and May 2020. Reports from in vitro and animal studies seem promising. Epidemiological studies also indicate the positive effect of high vitamin C content in the daily diet on bone mineral density. Despite promising observations, there are still few observational and intervention studies and their results do not allow for unequivocal determination of the benefits of high daily intake of vitamin C or its long-term supplementation.
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Affiliation(s)
- Olga Brzezińska
- Department of Rheumatology, Medical University of Lodz, 92-115 Lodz, Poland; (Z.Ł.); (J.M.)
| | - Zuzanna Łukasik
- Department of Rheumatology, Medical University of Lodz, 92-115 Lodz, Poland; (Z.Ł.); (J.M.)
| | - Joanna Makowska
- Department of Rheumatology, Medical University of Lodz, 92-115 Lodz, Poland; (Z.Ł.); (J.M.)
| | - Konrad Walczak
- Department of Internal Medicine and Nephrodiabetology, Medical University of Lodz, 90-050 Lodz, Poland;
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Zhao J, Zhang Y, Liu B. MicroRNA‑204‑5p inhibits the osteogenic differentiation of ankylosing spondylitis fibroblasts by regulating the Notch2 signaling pathway. Mol Med Rep 2020; 22:2537-2544. [PMID: 32705191 PMCID: PMC7411397 DOI: 10.3892/mmr.2020.11303] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 06/05/2020] [Indexed: 12/17/2022] Open
Abstract
Ankylosing spondylitis (AS) is a chronic inflammatory systemic disease and is difficult to detect in the early stages. The present study aimed to investigate the role of microRNA (miR)-204-5p in osteogenic differentiation of AS fibroblasts. Bone morphogenetic protein 2 (BMP-2) was used to induce osteogenic differentiation. Cells were divided into the following groups: AS group, AS + BMP-2 group, AS + BMP-2 + miR-negative control group, AS + BMP-2 + miR-204-5p mimics group and AS + BMP-2 + miR-204-5p mimics + pcDNA-Notch2 group. The expression levels of miR-204-5p, Notch2, runt-related transcription factor 2 (RUNX2) and osteocalcin were detected via reverse transcription-quantitative PCR analysis. The binding site between Notch2 and miR-204-5p was predicted using TargetScan software and verified via the dual-luciferase reporter assay. Alkaline phosphatase (ALP) activity was assessed via the ALP assay, while the mineralized nodules area was determined via the Alizarin Red S staining assay. The results demonstrated that Notch2 is a target gene of miR-204-5p. Furthermore, treatment with BMP-2 significantly decreased miR-204-5p expression, and significantly increased ALP activity, the mineralized nodules area and the expression levels of Notch2, RUNX2 and osteocalcin in ligament fibroblasts (all P<0.05). Conversely, transfection with miR-204-5p mimics significantly increased miR-204-5p expression, and significantly decreased ALP activity, the mineralized nodules area and the expression levels of Notch2, RUNX2 and osteocalcin in ligament fibroblasts (all P<0.05). Notably, transfection with pcDNA-Notch2 significantly reversed the inhibitory effects induced by miR-204-5p mimics on the osteogenic differentiation of ligament fibroblasts (all P<0.05). Furthermore, miR-204-5p inhibited the osteogenic differentiation of ligament fibroblasts in patients with AS by targeting Notch2. Thus, miR-204-5p may negatively regulate Notch2 expression and may be a potential therapeutic target for AS. Collectively, the results of the present study provide a theoretical basis for the effective treatment of patients with AS.
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Affiliation(s)
- Jianjun Zhao
- Department of Joint Surgery and Traumatic Orthopedics, Shouguang People's Hospital, Shouguang, Shandong 262700, P.R. China
| | - Yanyan Zhang
- Department of General Surgery, Shouguang People's Hospital, Shouguang, Shandong 262700, P.R. China
| | - Bo Liu
- Department of Trauma Orthopedics, The No. 4 Hospital of Jinan, Jinan, Shandong 250031, P.R. China
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Synthesis and Biological Evaluation of Ascorbyl-Conjugated Peptide Derivatives as Collagen Synthesis Stimulating Agents in Human Skin Fibroblasts. Int J Pept Res Ther 2020. [DOI: 10.1007/s10989-020-10041-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Zhao J, Liu S, Zhang W, Ni L, Hu Z, Sheng Z, Yin B. MiR-128 inhibits the osteogenic differentiation in osteoporosis by down-regulating SIRT6 expression. Biosci Rep 2019; 39:BSR20191405. [PMID: 31477582 PMCID: PMC6757182 DOI: 10.1042/bsr20191405] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 08/11/2019] [Accepted: 08/19/2019] [Indexed: 01/26/2023] Open
Abstract
Background: MicroRNAs (miRNAs) are involved in the regulation of osteogenic differentiation and chondrification in vivo The purpose of the present study was to explore the potential mechanism of miR-128 in osteoporosis (OP).Methods: Quantitative real-time PCR (qRT-PCR) was used to determine the expression of miR-128 in femoral neck trabecular bones of OP patients (n=40) and non-OP patients (n=40). C2C12 cells were transfected with miR-128 mimic or inhibitor to determine the effect of miR-128 on osteoblastic differentiation of C2C12 cells. Bioinformatics and luciferase reporter genes were used to determine the molecular mechanism of miR-128 in osteoblastic differentiation of C2C12 cells.Results: The qRT-PCR results showed that the expression level of miR-128 in bone samples of OP patients was significantly higher than that of non-OP patients, while miR-128 was significantly down-regulated during the osteogenic differentiation of C2C12 cells. In addition, the results showed that overexpression of miR-128 significantly inhibited the mRNA and protein expression levels of osteocalcin (OC), alkaline phosphatase (ALP) and collagen I type-α1 (COL1A1) in C2C12 cells, while miR-128 inhibitor could reverse this effect. Bioinformatics analysis and dual-luciferase reporter assay found that silencing information regulatory protein 6 (SIRT6) was a direct target of miR-128. The qRT-PCR and Western Blot results found that miR-128 significantly down-regulated the mRNA and protein expressions of SIRT6. Furthermore, silencing SIRT6 significantly inhibited the promoting effect of the miR-128 inhibitor on the expression of osteoblast markers.Conclusion: The above results confirmed that miR-128 inhibited osteoblast differentiation in OP by down-regulating SIRT6 expression, thus accelerating the development of OP.
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Affiliation(s)
- Jindong Zhao
- Department of Spinal Surgery, The Fifth Hospital of Harbin, Harbin City 150040, Heilongjiang Province, P.R. China
| | - Shaohui Liu
- Department of Spinal Surgery, The Fifth Hospital of Harbin, Harbin City 150040, Heilongjiang Province, P.R. China
| | - Wenhui Zhang
- Department of Spinal Surgery, The Fifth Hospital of Harbin, Harbin City 150040, Heilongjiang Province, P.R. China
| | - Linying Ni
- Department of Orthopedic, The third affiliated hospital of Harbin Medical University, Harbin City 150040, Heilongjiang Province, P.R. China
| | - Zhenming Hu
- Department of Orthopedic, The First Affiliated Hospital of Chongqing Medical University, Chongqing City 400000, P.R. China
| | - Zhigang Sheng
- Department of Spinal Surgery, The Fifth Hospital of Harbin, Harbin City 150040, Heilongjiang Province, P.R. China
| | - Bo Yin
- Department of Spinal Surgery, The Fifth Hospital of Harbin, Harbin City 150040, Heilongjiang Province, P.R. China
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Smith LR, Irianto J, Xia Y, Pfeifer CR, Discher DE. Constricted migration modulates stem cell differentiation. Mol Biol Cell 2019; 30:1985-1999. [PMID: 31188712 PMCID: PMC6727770 DOI: 10.1091/mbc.e19-02-0090] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Tissue regeneration at an injured site depends on proliferation, migration, and differentiation of resident stem or progenitor cells, but solid tissues are often sufficiently dense and constricting that nuclei are highly stressed by migration. In this study, constricted migration of myoblastic cell types and mesenchymal stem cells (MSCs) increases nuclear rupture, increases DNA damage, and modulates differentiation. Fewer myoblasts fuse into regenerating muscle in vivo after constricted migration in vitro, and myodifferentiation in vitro is likewise suppressed. Myosin II inhibition rescues rupture and DNA damage, implicating nuclear forces, while mitosis and the cell cycle are suppressed by constricted migration, consistent with a checkpoint. Although perturbed proliferation fails to explain defective differentiation, nuclear rupture mislocalizes differentiation-relevant MyoD and KU80 (a DNA repair factor), with nuclear entry of the DNA-binding factor cGAS. Human MSCs exhibit similar damage, but osteogenesis increases-which is relevant to bone and to calcified fibrotic tissues, including diseased muscle. Tissue repair can thus be modulated up or down by the curvature of pores through which stem cells squeeze.
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Affiliation(s)
- Lucas R. Smith
- Molecular and Cell Biophysics Laboratory, University of Pennsylvania, Philadelphia, PA 19104,Department of Neurobiology, Physiology, and Behavior, University of California, Davis, Davis, CA 95616,Department of Physical Medicine and Rehabilitation, University of California, Davis, Sacramento, CA 95817
| | - Jerome Irianto
- Molecular and Cell Biophysics Laboratory, University of Pennsylvania, Philadelphia, PA 19104
| | - Yuntao Xia
- Molecular and Cell Biophysics Laboratory, University of Pennsylvania, Philadelphia, PA 19104
| | - Charlotte R. Pfeifer
- Molecular and Cell Biophysics Laboratory, University of Pennsylvania, Philadelphia, PA 19104
| | - Dennis E. Discher
- Molecular and Cell Biophysics Laboratory, University of Pennsylvania, Philadelphia, PA 19104,*Address correspondence to: Dennis E. Discher ()
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Zhang Y, Chen B, Li D, Zhou X, Chen Z. LncRNA NEAT1/miR-29b-3p/BMP1 axis promotes osteogenic differentiation in human bone marrow-derived mesenchymal stem cells. Pathol Res Pract 2019; 215:525-531. [DOI: 10.1016/j.prp.2018.12.034] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 12/06/2018] [Accepted: 12/30/2018] [Indexed: 12/22/2022]
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