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Kim SHL, Cho S, Kim S, Kwon J, Lee J, Koh RH, Park JH, Lee H, Park TH, Hwang NS. Cellular direct conversion by cell penetrable OCT4-30Kc19 protein and BMP4 growth factor. Biomater Res 2022; 26:33. [PMID: 35836274 PMCID: PMC9281139 DOI: 10.1186/s40824-022-00280-8] [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: 04/07/2022] [Accepted: 06/20/2022] [Indexed: 11/24/2022] Open
Abstract
Background The number of patients suffering from osteoporosis is increasing as the elderly population increases. The demand for investigating bone regeneration strategies naturally arises. One of the approaches to induce bone regeneration is somatic cell transdifferentiation. Among the transcriptional regulators for transdifferentiation, octamer-binding transcription factor 4 (OCT4) is famous for its role in the regulation of pluripotency of stem cells. Bone morphogenetic protein 4 (BMP4) is another factor that is known to have a significant role in osteogenic differentiation. Previous studies have achieved transdifferentiation of cells into osteoblasts using viral and plasmid deliveries of these factors. Although these methods are efficient, viral and plasmid transfection have safety issues such as permanent gene incorporations and bacterial DNA insertions. Herein, we developed a cell penetrating protein-based strategy to induce transdifferentiation of endothelial cells into osteoblasts via nuclear delivery of OCT4 recombinant protein combined with the BMP4 treatment. For the nuclear delivery of OCT4 protein, we fused the protein with 30Kc19, a cell-penetrating and protein stabilizing protein derived from a silkworm hemolymph of Bombyx mori with low cytotoxic properties. This study proposes a promising cell-based therapy without any safety issues that existing transdifferentiation approaches had. Methods OCT4-30Kc19 protein with high penetrating activities and stability was synthesized for a protein-based osteogenic transdifferentiation system. Cells were treated with OCT4-30Kc19 and BMP4 to evaluate their cellular penetrating activity, cytotoxicity, osteogenic and angiogenic potentials in vitro. The osteogenic potential of 3D cell spheroids was also analyzed. In addition, in vivo cell delivery into subcutaneous tissue and cranial defect model was performed. Results OCT4-30Kc19 protein was produced in a soluble and stable form. OCT4-30Kc19 efficiently penetrated cells and were localized in intracellular compartments and the nucleus. Cells delivered with OCT4-30Kc19 protein combined with BMP4 showed increased osteogenesis, both in 2D and 3D culture, and showed increased angiogenesis capacity in vitro. Results from in vivo subcutaneous tissue delivery of cell-seeded scaffolds confirmed enhanced osteogenic properties of transdifferentiated HUVECs via treatment with both OCT4-30Kc19 and BMP4. In addition, in vivo mouse cranial defect experiment demonstrated successful bone regeneration of HUVECs pretreated with both OCT4-30Kc19 and BMP4. Conclusions Using a protein-based transdifferentiation method allows an alternative approach without utilizing any genetic modification strategies, thus providing a possibility for safer use of cell-based therapies in clinical applications. Supplementary Information The online version contains supplementary material available at 10.1186/s40824-022-00280-8.
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Affiliation(s)
- Seung Hyun L Kim
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea.,Department of Medicine, Standford University, 450 Serra Mall, Standford, 94305, USA
| | - Sungwoo Cho
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seoyeon Kim
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Janet Kwon
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea.,Department of Biomedical Engineering, University of California, Davis, CA, 95616, USA
| | - Jaeyoung Lee
- Department of Biomedical Science, Kangwon National University, Gangwon-do, Chuncheon, 24321, Republic of Korea
| | - Rachel H Koh
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea.,Max/N-Bio Institute, Institute of Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ju Hyun Park
- Department of Biomedical Science, Kangwon National University, Gangwon-do, Chuncheon, 24321, Republic of Korea
| | - Hwajin Lee
- School of Dentistry, Seoul National University, Seoul, 08826, Republic of Korea. .,Uppthera, BRC Laboratory, Yeonsu-gu, Incheon, 21990, Republic of Korea.
| | - Tai Hyun Park
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea. .,School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea. .,Max/N-Bio Institute, Institute of Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea.
| | - Nathaniel S Hwang
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea. .,School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea. .,Max/N-Bio Institute, Institute of Bioengineering, Seoul National University, Seoul, 08826, Republic of Korea.
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Feng J, Meng Z. Insulin growth factor-1 promotes the proliferation and osteogenic differentiation of bone marrow mesenchymal stem cells through the Wnt/β-catenin pathway. Exp Ther Med 2021; 22:891. [PMID: 34194569 PMCID: PMC8237273 DOI: 10.3892/etm.2021.10323] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Accepted: 05/24/2021] [Indexed: 02/06/2023] Open
Abstract
Bone marrow mesenchymal stem cells (BMSCs) are stem cells that exist in bone marrow tissue and have osteogenic differentiation potential. Insulin growth factor-1 (IGF-1) plays a key role in the proliferation and osteogenic differentiation of BMSCs. However, the specific mechanism of IGF-1 in cell proliferation and osteogenic differentiation remains unclear. In the present study, BMSCs were transfected with lentivirus carrying the siRNA-Wnt3a gene, and the Wnt3a level in BMSCs was revealed to be reduced by western blotting, real-time quantitative polymerase chain reaction and immunofluorescence detection. Then, BMSCs were treated with 80 ng/ml IGF-1 in complete medium for 5 days. CCK-8 and cell cycle assays revealed that cell proliferation was significantly decreased in the siRNA-Wnt3a group than in the control group. The protein and mRNA levels of β-catenin and cyclin D1 were significantly downregulated in the siRNA-Wnt3a group compared with the control group. In addition, BMSCs were treated with IGF-1 in osteogenic differentiation medium for 7 and 21 days, and alkaline phosphatase staining and Alizarin Red staining demonstrated significantly reduced osteogenic differentiation ability in the siRNA-Wnt3a group compared with the control group. Furthermore, the protein and mRNA levels of β-catenin, RUNX2, and OPN were downregulated compared with the control group. Our findings revealed that IGF-1 promoted the proliferation and differentiation of BMSCs at least partially through the Wnt/β-catenin pathway. These findings provided new insight into the clinical treatment of bone disease.
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Affiliation(s)
- Jing Feng
- Jiaozuo Coal Industry (Group) Co. Ltd. Central Hospital, Jiaozuo, Henan 454000, P.R. China
| | - Zhiqiang Meng
- Department of Orthopedics, The General Hospital of Ningxia Medical University, Yinchuan, Ningxia Hui Autonomous Region 750004, P.R. China
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Kim SHL, Lee SS, Kim I, Kwon J, Kwon S, Bae T, Hur J, Lee H, Hwang NS. Ectopic transient overexpression of OCT-4 facilitates BMP4-induced osteogenic transdifferentiation of human umbilical vein endothelial cells. J Tissue Eng 2020; 11:2041731420909208. [PMID: 32201555 PMCID: PMC7066588 DOI: 10.1177/2041731420909208] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 02/07/2020] [Indexed: 01/05/2023] Open
Abstract
Limitation in cell sources for autologous cell therapy has been a recent focus in stem cell therapy and tissue engineering. Among various research advances, direct conversion, or transdifferentiation, is a notable and feasible strategy for the generation and acquirement of wanted cell source. So far, utilizing cell transdifferentiation technology in tissue engineering was mainly restricted at achieving single wanted cell type from diverse cell types with high efficiency. However, regeneration of a complete tissue always requires multiple cell types which poses an intrinsic complexity. In this study, enhanced osteogenic differentiation was achieved by transient ectopic expression of octamer-binding transcription factor 4 (OCT-4) gene followed by bone morphogenetic protein 4 treatment on human umbilical vein endothelial cells. OCT-4 transfection and bone morphogenetic protein 4 treatment resulted in enhanced expression of osteogenic markers such as core-binding factor alpha 1, alkaline phosphatase, and collagen 1 compared with bone morphogenetic protein 4 treatment alone. Furthermore, we employed gelatin-heparin cryogel in cranial defect model for in vivo bone formation. Micro-computed tomography and histological analysis of in vivo samples showed that OCT-4 transfection followed by bone morphogenetic protein 4 treatment resulted in efficient transdifferentiation of endothelial cells to osteogenic cells. These results suggest that the combination of OCT-4 and bone morphogenetic protein 4 on endothelial cells would be a reliable multicellular transdifferentiation model which could be applied for bone tissue engineering.
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Affiliation(s)
- Seung Hyun L Kim
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Republic of Korea
| | - Seunghun S Lee
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Republic of Korea
| | - Inseon Kim
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, Republic of Korea
| | - Janet Kwon
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Republic of Korea
| | - Song Kwon
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, Republic of Korea
| | - Taegeun Bae
- BioMAX/N-Bio Institute, Seoul National University, Seoul, Republic of Korea
| | - Junho Hur
- Department of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hwajin Lee
- School of Dentistry, Seoul National University, Seoul, Republic of Korea
| | - Nathaniel S Hwang
- Interdisciplinary Program in Bioengineering, Seoul National University, Seoul, Republic of Korea.,School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul, Republic of Korea.,BioMAX/N-Bio Institute, Seoul National University, Seoul, Republic of Korea
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He J, Chen G, Liu M, Xu Z, Chen H, Yang L, Lv Y. Scaffold strategies for modulating immune microenvironment during bone regeneration. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 108:110411. [PMID: 31923946 DOI: 10.1016/j.msec.2019.110411] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 10/21/2019] [Accepted: 11/07/2019] [Indexed: 12/18/2022]
Abstract
Implanted bone scaffolds often fail to successfully integrate with the host tissue because they do not elicit a favorable immune reaction. Properties of bone scaffold not only provide mechanical and chemical signals to support cell adhesion, migration, proliferation and differentiation, but also play a pivotal role in determining the extent of immune response during bone regeneration. Appropriate design parameters of bone scaffold are of great significance in the process of developing a new generation of bone implants. Herein, this article addresses the recent advances in the field of bone scaffolds for immune response, particularly focusing on the physical and chemical properties of bone scaffold in manipulating the host response. Furthermore, incorporation of bioactive molecules and cells with immunoregulatory function in bone scaffolds are also presented. Finally, continuing challenges and future directions of scaffold-based strategies for modulating immune microenvironment are discussed.
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Affiliation(s)
- Jianhua He
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China.
| | - Guobao Chen
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China
| | - Mengying Liu
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China
| | - Zhiling Xu
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China.
| | - Hua Chen
- College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, PR China.
| | - Li Yang
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China.
| | - Yonggang Lv
- Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education, Bioengineering College, Chongqing University, Chongqing 400044, PR China; Mechanobiology and Regenerative Medicine Laboratory, Bioengineering College, Chongqing University, Chongqing 400044, PR China.
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Charbonnier B, Baradaran A, Sato D, Alghamdi O, Zhang Z, Zhang Y, Gbureck U, Gilardino M, Harvey E, Makhoul N, Barralet J. Material-Induced Venosome-Supported Bone Tubes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900844. [PMID: 31508287 PMCID: PMC6724474 DOI: 10.1002/advs.201900844] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/06/2019] [Indexed: 05/03/2023]
Abstract
The development of alternatives to vascular bone grafts, the current clinical standard for the surgical repair of large segmental bone defects still today represents an unmet medical need. The subcutaneous formation of transplantable bone has been successfully achieved in scaffolds axially perfused by an arteriovenous loop (AVL) and seeded with bone marrow stromal cells or loaded with inductive proteins. Although demonstrating clinical potential, AVL-based approaches involve complex microsurgical techniques and thus are not in widespread use. In this study, 3D-printed microporous bioceramics, loaded with autologous total bone marrow obtained by needle aspiration, are placed around and next to an unoperated femoral vein for 8 weeks to assess the effect of a central flow-through vein on bone formation from marrow in a subcutaneous site. A greater volume of new bone tissue is observed in scaffolds perfused by a central vein compared with the nonperfused negative control. These analyses are confirmed and supplemented by calcified and decalcified histology. This is highly significant as it indicates that transplantable vascularized bone can be grown using dispensable vein and marrow tissue only. This is the first report illustrating the capacity of an intrinsic vascularization by a single vein to support ectopic bone formation from untreated marrow.
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Affiliation(s)
- Baptiste Charbonnier
- Department of Mechanical EngineeringMcGill University817 Sherbrooke Street WestMontrealH3A 0C3QuebecCanada
| | - Aslan Baradaran
- Experimental Surgery DivisionDepartment of SurgeryFaculty of MedicineMontreal General Hospital1650 Cedar AvenueMontrealH3G 1A4QuebecCanada
| | - Daisuke Sato
- Department of Implant DentistryShowa University Dental Hospital2 Chome‐1‐1 KitasenzokuOta CityTokyo145‐8515Japan
| | - Osama Alghamdi
- Division of Oral & Maxillofacial SurgeryMcGill UniversityMontreal General Hospital1650 Cedar AvenueMontrealH3G 1A4QuebecCanada
| | - Zishuai Zhang
- Faculty of DentistryMcGill University3640, Strathcona Anatomy and Dentistry Building, University StreetMontrealH3A 0C7QuebecCanada
| | - Yu‐Ling Zhang
- Faculty of DentistryMcGill University3640, Strathcona Anatomy and Dentistry Building, University StreetMontrealH3A 0C7QuebecCanada
| | - Uwe Gbureck
- Department for Functional Materials in Medicine and DentistryUniversity of WürzburgPleicherwall 2D‐97070WürzburgGermany
| | - Mirko Gilardino
- Experimental Surgery DivisionDepartment of SurgeryFaculty of MedicineMontreal General Hospital1650 Cedar AvenueMontrealH3G 1A4QuebecCanada
| | - Edward Harvey
- Experimental Surgery DivisionDepartment of SurgeryFaculty of MedicineMontreal General Hospital1650 Cedar AvenueMontrealH3G 1A4QuebecCanada
| | - Nicholas Makhoul
- Division of Oral & Maxillofacial SurgeryMcGill UniversityMontreal General Hospital1650 Cedar AvenueMontrealH3G 1A4QuebecCanada
| | - Jake Barralet
- Experimental Surgery DivisionDepartment of SurgeryFaculty of MedicineMontreal General Hospital1650 Cedar AvenueMontrealH3G 1A4QuebecCanada
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Cui Y, Lu C, Chen B, Han J, Zhao Y, Xiao Z, Han S, Pan J, Dai J. Restoration of mandibular bone defects with demineralized bone matrix combined with three-dimensional cultured bone marrow-derived mesenchymal stem cells in minipig models. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:147. [PMID: 30171486 DOI: 10.1007/s10856-018-6152-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 08/19/2018] [Indexed: 06/08/2023]
Abstract
Mandibular defects, caused by congenital, pathological or iatrogenic insults, can significantly affect patient quality of life. The reconstruction of mandible has recently gained the interest of clinical and tissue engineering researchers. The purpose of this study was to evaluate the effectiveness of three-dimensional (3-D) cultured autologous grafts prepared using bone marrow-derived mesenchymal stem cells (BMSCs) combined with demineralized bone matrix (DBM) scaffolds for the restoration of mandibular defects. Cylindrical defects were created in the mandibular body of minipigs and filled with 3D-cultured BMSCs/DBM autografts, 2D-cultured BMSCs/DBM autografts, DBM material (without cells), or were left unfilled (blank). Using computed tomographic (CT) imaging and histological staining, we found that treatment of mandibular defects using 3-D cultured BMSCs/DBM autografts offered improvements in bone formation over both 2-D cultured autografts and cell-free DBM scaffolds. We found increased osteoid formation in 3D and 2D cultures, with more osteogenic cells present in the 3D constructs. We suggest that 3-D cultured homograft BMSCs combined with DBM scaffolds represents a new strategy for bone reconstruction, with potential future clinical applicability.
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Affiliation(s)
- Yi Cui
- Reproductive and Genetic Center of National Research Institute for Family Planning, Beijing, 100081, P.R. China
| | - Chao Lu
- Department of Oral & Maxillofacial Surgery, Beijing Chongwen Hospital of Stomatology, Beijing, 100062, China
| | - Bing Chen
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100080, China
| | - Jin Han
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100080, China
| | - Yannan Zhao
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100080, China
| | - Zhifeng Xiao
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100080, China
| | - Sufang Han
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100080, China
| | - Juli Pan
- Department of VIP Service, School of Stomatology, Capital Medical University, Beijing, China.
| | - Jianwu Dai
- Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100080, China.
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