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Dong Z, Hu B, Wang S, Wang M, Sun S, Liu X, Li D, Wu D. LncRNA MAGI2-AS3 promotes fracture healing through downregulation of miR-223-3p. J Orthop Surg Res 2024; 19:370. [PMID: 38907263 PMCID: PMC11193218 DOI: 10.1186/s13018-024-04850-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Accepted: 06/13/2024] [Indexed: 06/23/2024] Open
Abstract
BACKGROUND Long non-coding RNAs (LncRNAs) are recognized as a pivotal element in the processes of fracture healing and the osteogenic differentiation of stem cells. This study investigated the molecular mechanism and regulatory significance of lncRNA MAGI2-AS3 (MAGI2-AS3) in fracture healing. METHODS Serum levels of MAGI2-AS3 in patients with normal and delayed fracture healing were verified by RT-qPCR assays. The predictive efficacy of MAGI2-AS3 for delayed fracture healing was analyzed by ROC curve. Osteogenic markers were quantified by RT-qPCR assays. MC3T3-E1 cell viability was detected using CCK-8 assay, and flow cytometry was utilized to measure cell apoptosis. The dual-luciferase reporter gene assay was used to determine the targeted binding between MAGI2-AS3 and miR-223-3p. RESULTS Serum MAGI2-AS3 expression was decreased in patients with delayed fracture healing compared with patients with normal healing. Elevated MAGI2-AS3 resulted in an upregulation of the proliferative capacity of MC3T3-E1 cells and a decrease in mortality, along with increased levels of both osteogenic markers. However, after transfection silencing MAGI2-AS3, the trend was reversed. Additionally, miR-223-3p was the downstream target of MAGI2-AS3 and was controlled by MAGI2-AS3. miR-223-3p mimic reversed the promoting effects of MAGI2-AS3 overexpression on osteogenic marker levels and cell growth, and induced cell apoptosis. CONCLUSION The upregulation of MAGI2-AS3 may expedite the healing of fracture patients by targeting miR-223-3p, offering a novel biomarker for diagnosing patients with delayed healing.
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Affiliation(s)
- Zhiqiang Dong
- Department of Orthopedics, Xi'an International Medical Center Hospital, Xi'an, 710000, China
| | - Bingbing Hu
- Department of Orthopedics, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, 421001, China
| | - Shantao Wang
- Spinal Trauma Orthopedics, Yidu Central Hospital of Weifang, No.5168, Jiangjunshan Road, Qingzhou City, Weifang, 262500, China.
| | - Mingwei Wang
- Department of Pediatric, Yidu Central Hospital of Weifang, Weifang, 262500, China
| | - Shengliang Sun
- Hand, Foot and Ankle Surgery, Yidu Central Hospital of Weifang, Weifang, 262500, China
| | - Xinsheng Liu
- Spinal Trauma Orthopedics, Yidu Central Hospital of Weifang, No.5168, Jiangjunshan Road, Qingzhou City, Weifang, 262500, China
| | - Danzhi Li
- Spinal Trauma Orthopedics, Yidu Central Hospital of Weifang, No.5168, Jiangjunshan Road, Qingzhou City, Weifang, 262500, China
| | - Dengjiang Wu
- Department of Orthopedics, The Fifth Affiliated Hospital of Guangzhou Medical University, No. 621, Gangwan Road, Huangpu District, Guangzhou, 510700, China.
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Maekawa S, Cho YD, Kauffmann F, Yao Y, Sugai JV, Zhong X, Schmiedeler C, Kinra N, Moy A, Larsson L, Lahann J, Giannobile WV. BMP Gene-Immobilization to Dental Implants Enhances Bone Regeneration. ADVANCED MATERIALS INTERFACES 2022; 9:2200531. [PMID: 36387968 PMCID: PMC9645788 DOI: 10.1002/admi.202200531] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Indexed: 05/24/2023]
Abstract
For individuals who have experienced tooth loss, dental implants are an important treatment option for oral reconstruction. For these patients, alveolar bone augmentation and acceleration of osseointegration optimize implant stability. Traditional oral surgery often requires invasive procedures, which can result in prolonged treatment time and associated morbidity. It has been previously shown that chemical vapor deposition (CVD) polymerization of functionalized [2.2]paracyclophanes can be used to anchor gene encoding vectors onto biomaterial surfaces and local delivery of a bone morphogenetic protein (BMP)-encoding vector can increase alveolar bone volume and density in vivo. This study is the first to combine the use of CVD technology and BMP gene delivery on titanium for the promotion of bone regeneration and bone to implant contact in vivo. BMP-7 tethered to titanium surface enhances osteoblast cell differentiation and alkaline phosphatase activity in vitro and increases alveolar bone regeneration and % bone to implant contact similar to using high doses of exogenously applied BMP-7 in vivo. The use of this innovative gene delivery strategy on implant surfaces offers an alternative treatment option for targeted alveolar bone reconstruction.
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Affiliation(s)
- Shogo Maekawa
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA
- Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-5810, Japan
| | - Young-Dan Cho
- Department of Periodontology, School of Dentistry and Dental Research Institute, Seoul National University and Seoul National University, Dental Hospital, Yeongeon-dong, Jongno-gu, Seoul 03080, South Korea
| | - Frederic Kauffmann
- Department of Oral and Craniomaxillofacial Surgery, Center for Dental Medicine, University Medical Center Freiburg, 79110 Freiburg im Breisgau, Germany
| | - Yao Yao
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - James V Sugai
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
| | - Xiaoyang Zhong
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - Caroline Schmiedeler
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - Nitin Kinra
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - Alyssa Moy
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - Lena Larsson
- Department of Periodontology, Institute of Odontology, University of Gothenburg, Gothenburg 41390, Sweden
| | - Joerg Lahann
- Biointerfaces Institute, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA
| | - William V Giannobile
- Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, 188 Longwood Avenue, Boston, MA 02115, USA
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The Role of Supplementation with Natural Compounds in Post-Stroke Patients. Int J Mol Sci 2021; 22:ijms22157893. [PMID: 34360658 PMCID: PMC8348438 DOI: 10.3390/ijms22157893] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/07/2021] [Accepted: 07/20/2021] [Indexed: 12/13/2022] Open
Abstract
Malnutrition is a serious problem in post-stroke patients. Importantly, it intensifies with hospitalization, and is related to both somatic and psychological reasons, as well as is associated with the insufficient knowledge of people who accompany the patient. Malnutrition is a negative prognostic factor, leading to a reduction in the quality of life. Moreover, this condition significantly extends hospitalization time, increases the frequency of treatment in intensive care units, and negatively affects the effectiveness of rehabilitation. Obtaining growing data on the therapeutic effectiveness of new compounds of natural origin is possible through the use of pharmacodynamic and analytical methods to assess their therapeutic properties. The proper supply of nutrients, as well as compounds of natural origin, is an important element of post-stroke therapy, due to their strong antioxidant, anti-inflammatory, neuroprotective and neuroplasticity enhancing properties. Taking the above into account, in this review we present the current state of knowledge on the benefits of using selected substances of natural origin in patients after cerebral stroke.
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