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Wang Y, Wu J, Feng J, Xu B, Niu Y, Zheng Y. From Bone Remodeling to Wound Healing: An miR-146a-5p-Loaded Nanocarrier Targets Endothelial Cells to Promote Angiogenesis. ACS APPLIED MATERIALS & INTERFACES 2024; 16:32992-33004. [PMID: 38887990 DOI: 10.1021/acsami.4c03598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Wound healing is a complex challenge that demands urgent attention in the clinical realm. Efficient angiogenesis is a pivotal factor in promoting wound healing. microRNA-146a (miR-146a) inhibitor has angiogenic potential in the periodontal ligament. However, free microRNAs (miRNAs) are poorly delivered into cells due to their limited tissue specificity and low intracellular delivery efficiency. To address this hurdle, we developed a nanocarrier for targeted delivery of the miR-146a inhibitor into endothelial cells. It is composed of a polyethylenimine (PEI)-modified mesoporous silica nanoparticle (MSN) core and a pentapeptide (YIGSR) layer that recognizes endothelial cells. In vitro, we defined that the miR-146a inhibitor and adiponectin (ADP) can modulate angiogenesis and the remodeling of periodontal tissues by activating the ERK and Akt signaling pathways. Then, we confirm the specificity of YIGSR to endothelial cells, and importantly, the nanocarrier effectively delivers the miR-146a inhibitor into endothelial cells, promoting angiogenesis. In a C57 mouse skin wound model, the miR-146a inhibitor is successfully delivered into endothelial cells at the wound site using the nanocarrier, resulting in the formation of new blood vessels with strong CD31 expression. Additionally, no significant differences are found in the expression levels of inflammatory markers interleukin-6 and tumor necrosis factor-α. This outcome not only brings new strategies for angiogenesis but also exhibits broader implications for bone remodeling and wound healing. The breakthrough holds significance for future research and clinical interventions.
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Affiliation(s)
- Yue Wang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, P. R. China
- Department of Dental Medical Center, China-Japan Friendship Hospital, Beijing 100029, P. R. China
| | - Jinjin Wu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, P. R. China
| | - Jingjing Feng
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, P. R. China
| | - Baohua Xu
- Department of Dental Medical Center, China-Japan Friendship Hospital, Beijing 100029, P. R. China
| | - Yuting Niu
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, P. R. China
| | - Yunfei Zheng
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, 22 Zhongguancun South Avenue, Haidian District, Beijing 100081, P. R. China
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Wang J, Cui W, Zhao Y, Lei L, Li H. Clinical and radiographic evaluation of Bio-Oss granules and Bio-Oss Collagen in the treatment of periodontal intrabony defects: a retrospective cohort study. J Appl Oral Sci 2024; 32:e20230268. [PMID: 38198370 PMCID: PMC11019911 DOI: 10.1590/1678-7757-2023-0268] [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: 08/21/2023] [Accepted: 11/29/2023] [Indexed: 01/12/2024] Open
Abstract
OBJECTIVE This retrospective study aimed to analyze the clinical efficacy of two regenerative surgical methods - Bio-Oss granules combined with barrier membranes and Bio-Oss Collagen alone - and to help clinicians achieve better periodontal regeneration outcomes in the specific periodontal condition. METHODOLOGY Patients who underwent periodontal regeneration surgery from January 2018 to April 2022 were retrospectively screened, and their clinical and radiographic outcomes at 6 months postoperatively were analyzed. The probing depth (PD), clinical attachment level (CAL), bleeding on probing (BOP), gingival recession (GR), distance from the cemento-enamel junction to the bottom of the bone defect (CEJ-BD), and depth of intrabony defects (INFRA) were recorded before the operation (T0) and 6 months after it (T1), and subsequently compared. RESULTS In total, 143 patients were included - 77 were placed in the Bio-Oss group and 66 were placed in the Bio-Oss Collagen group. All indicators, including PD and CAL at T1, showed significant differences compared to baseline, for both groups (P<0.001). PD reduction was greater in the group receiving the Bio-Oss Collagen treatment (P=0.042). Furthermore, in cases when the baseline PD range was 7-11 mm and the age range was 35-50 years, PD reduction was more significant for patients receiving the Bio-Oss Collagen treatment (P=0.031, 0.023). A linear regression analysis indicated that postoperative PD and CAL were positively correlated with baseline values, and that the efficacy tended to decrease with increasing age. CONCLUSION Both the use of Bio-Oss Collagen alone and the use of Bio-Oss granules combined with barrier membranes resulted in significant effects in the treatment of periodontal intrabony defects. The Bio-Oss Collagen treatment generated more improvements in PD than the Bio-Oss granules combined with barrier membranes, particularly within the baseline PD range of 7-11 mm and the 35-50 years age group. Additionally, age was the main factor influencing the effectiveness of regenerative surgery for intrabony defects: older individuals exhibited fewer improvements.
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Affiliation(s)
- Jinmeng Wang
- Nanjing University, Affiliated Hospital of Medical School, Nanjing Stomatological Hospital, Department of Periodontology, Nanjing, China
| | - Wenjie Cui
- Nanjing University, Affiliated Hospital of Medical School, Nanjing Stomatological Hospital, Department of Periodontology, Nanjing, China
| | - Yang Zhao
- Nanjing University, Affiliated Hospital of Medical School, Nanjing Stomatological Hospital, Department of Periodontology, Nanjing, China
| | - Lang Lei
- Nanjing University, Affiliated Hospital of Medical School, Nanjing Stomatological Hospital, Department of Orthodontic, Nanjing, China
| | - Houxuan Li
- Nanjing University, Affiliated Hospital of Medical School, Nanjing Stomatological Hospital, Department of Periodontology, Nanjing, China
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Wu L, Morrow B, Hong L, Rajasingh J. Preparation of Monodispersed Nanofibrous Gelatin Microspheres Using Homebuilt Microfluidics. Methods Mol Biol 2024; 2835:325-337. [PMID: 39105928 DOI: 10.1007/978-1-0716-3995-5_28] [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] [Indexed: 08/07/2024]
Abstract
Gelatin, a protein derivative from collagen, is a versatile material with promising applications in tissue engineering. Among the various forms of gelatin scaffolds, nanofibrous gelatin microspheres (NFGMs) are attracting research efforts due to their fibrous nature and injectability. However, current methods for synthesizing nanofibrous gelatin microspheres (NFGMs) have limitations, such as wide size distributions and the use of toxic solvents. To address these challenges, the article introduces a novel approach. First, it describes the creation of a microfluidic device using readily available supplies. Subsequently, it outlines a unique process for producing monodispersed NFGMs through a combination of the microfluidic device and thermally induced phase separation (TIPS). This innovative method eliminates the need for sieving and the use of toxic solvents, making it a more ecofriendly and efficient alternative.
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Affiliation(s)
- Linfeng Wu
- Department of Pediatric Dentistry & Community Oral Health, College of Dentistry, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Brian Morrow
- Department of Bioscience Research, College of Dentistry, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Liang Hong
- Department of Pediatric Dentistry & Community Oral Health, College of Dentistry, University of Tennessee Health Science Center, Memphis, TN, USA
- Department of Bioscience Research, College of Dentistry, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Johnson Rajasingh
- Department of Bioscience Research, College of Dentistry, University of Tennessee Health Science Center, Memphis, TN, USA.
- Department of Medicine-Cardiology, University of Tennessee Health Science Center, Memphis, TN, USA.
- Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, USA.
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Yu X, Wang J, Han Q, Chu W, Lu S, Liu Y, Peng Y, Xu J, Shui Y. Effects of Yunnan Baiyao on the Differentiation of HPDLFs on the Bio-Oss® Collagen Scaffold in vivo. Int J Gen Med 2022; 15:5395-5405. [PMID: 35685694 PMCID: PMC9173728 DOI: 10.2147/ijgm.s359921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 05/09/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Xiaohong Yu
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Jing Wang
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Qianqian Han
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Wen Chu
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Shaowen Lu
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Yu Liu
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Yi Peng
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Jie Xu
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
| | - Yanqing Shui
- Department of Periodontology, School and Hospital of Stomatology, Kunming Medical University, Yunnan, People’s Republic of China
- Correspondence: Yanqing Shui, Department of Periodontology, Affiliated Stomatology Hospital of Kunming Medical University, Block C, Hecheng International, No. 1088 Haiyuan Middle Road, Wuhua District, Kunming, 650106, Yunnan, People’s Republic of China, Tel +86 15987150210, Email
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Ying Y, Li B, Liu C, Xiong Z, Bai W, Ma P. Shape-Memory ECM-Mimicking Heparin-Modified Nanofibrous Gelatin Scaffold for Enhanced Bone Regeneration in Sinus Augmentation. ACS Biomater Sci Eng 2021; 8:218-231. [PMID: 34961309 DOI: 10.1021/acsbiomaterials.1c01365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Biomaterials with clinical maneuverability and predictable bone regeneration are needed in the field of maxillary sinus augmentation. Herein, gelatin was chemically modified with heparin that specifically interacted with and stabilized bone morphogenetic protein-2 (BMP-2). We then introduced thermally induced phase separation to form the injectable, shape-memory, highly porous scaffold for bone regeneration in sinus augmentation. The hydrated heparin-modified nanofibrous gelatin scaffolds (NH-GS) were demonstrated with high resilience and shape-memory property, both macroscopically and microscopically, making them injectable scaffolds and expected to be applied in sinus augmentation. This novel scaffold was verified to be biocompatible and an excellent matrix to support cell attachment, proliferation, and infiltration. Further, the growth factor-loaded NH-GS showed sustained release kinetics of BMP-2 through affinity-based scaffold-growth factor interaction, compared with BMP-2 loaded gelatin sponge (GS) and nanofibrous gelatin scaffold (NF). Both in vitro and in vivo experiments demonstrated that the BMP-2-loaded NH-GS exhibited the highest osteogenesis among the other groups. Taken together, this study introduces a new regenerative strategy in maxillary sinus augmentation, which is injectable with a predefined shape and structure and promotes bone regeneration through a more sustained BMP-2 release.
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Affiliation(s)
- Yiqian Ying
- Department of Oral Implantology, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin 300041, China.,Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstruction, Tianjin 300041, China
| | - Beibei Li
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Changying Liu
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
| | - Zuochun Xiong
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Wei Bai
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Pan Ma
- Department of Dental Implant Center, Beijing Stomatological Hospital, School of Stomatology, Capital Medical University, Beijing 100050, China
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