Remote Tuning of Built-In Magnetoelectric Microenvironment to Promote Bone Regeneration by Modulating Cellular Exposure to Arginylglycylaspartic Acid Peptide |
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Authors: | Wenwen Liu Fengyi Zhang Yuanyang Yan Chenguang Zhang Han Zhao Boon Chin Heng Ying Huang Yang Shen Jinxing Zhang Lili Chen Xiufang Wen Xuliang Deng |
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Affiliation: | 1. NMPA Key Laboratory for Dental Materials National Engineering Laboratory for Digital and Material Technology of Stomatology, Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081 P. R. China;2. The School of Chemistry and Chemical Engineering, South China University of Technology Guangzhou, Guangzhou, 510640 P. R. China;3. Stomatological Hospital, Southern Medical University, Guangzhou, 510280 China;4. Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081 P. R. China;5. State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084 China;6. Department of Physics, Beijing Normal University, Beijing, 100875 China;7. Department of Stomatology Union Hospital Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022 P. R. China |
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Abstract: | Mimicking the endogenous physical microenvironment is a promising strategy for biomaterial-mediated tissue regeneration. However, precise control of physical cues such as electric/magnetic fields within extracellular environments to facilitate tissue regeneration remains a formidable challenge. Here, remote tuning of the magnetoelectric microenvironment is achieved by a built-in CoFe2O4/poly(vinylidene fluoridetrifluoroethylene) P(VDF-TrFE)] magnetoelectric membrane for effective bone regeneration. The magnetoelectric microenvironment from the nanocomposite membranes promotes osteogenic differentiation of bone marrow mesenchymal stem cells (BM-MSCs) and enhances bone defect regeneration by increasing cellular exposure and integrin binding to arginylglycylaspartic acid peptide, as predicted by molecular dynamics simulations. Moreover, BM-MSCs are directed to the osteogenic lineage by osteoimmuomodulation which involves accelerating transition from an initial inflammatory immune response to a pro-healing regenerative immune response. This work offers a strategy to mimic the magnetoelectric microenvironment for achieving precise and effective tissue regenerative therapies, as well as provides fundamental insights into the biological effects driven by the built-in magnetoelectric membrane, which can be remotely tuned to precisely modulate osteogenesis in situ. |
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Keywords: | arginylglycylaspartic acid bone regeneration magnetoelectric microenvironments nanocomposite membranes remote tuning |
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