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Upregulating Hif-1 by Hydrogel Nanofibrous Scaffolds for Rapidly Recruiting Angiogenesis Relative Cells in Diabetic Wound

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机构: [1]Shanghai Institute of Traumatology and Orthopaedics, Shanghai Key Laboratory for Prevention and Treatmentof Bone and Joint Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China [2]Department of Orthopaedics, The Second Affiliated Hospital of Soochow University, 1055 Sanxiang Road, Soochow, Jiangsu, 215004, P. R. China [3]Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland [4]Harvard John A. Paulson School of Applied Science and Engineering, Harvard University, Cambridge, MA, 02138, USA [5]Rapid Manufacturing Engineering Center of Shanghai University, 99 Shangda Road, Shanghai, 200444, P. R. China [6]Department of Burn and Plastic surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China [7]Department of Orthopaedics, Qian Fo Shan Hospital, Shan Dong University, 16766 Jingshi Road, Ji Nan, Shandong, 250014, P. R. China [8]Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 708 Renmin Road, Suzhou, Jiangsu, 215006, P. R. China
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关键词: angiogenesis diabetic wounds drug release hydrogel nanofibers vessel regeneration

摘要:
Nonhealing chronic wounds on foot are one of the most dreaded complications of diabetes, and biomedical scaffolds remain an attractive option for repairing or regenerating tissues. Accelerating angiogenesis in the early stage after injury is critical to wound healing process; however, the scaffolds accelerate the angiogenesis in the beginning but with the acceleration of vessel network formation the scaffold network hinders the process. In this study, the water soluble drugs-loaded hydrogel nanofibrous scaffolds are designed for rapidly recruiting angiogenesis relative cells and promoting wound healing. The sustained release profile of desferrioxamine (DFO), which continues for about 72 h, leads to significantly increase of neovascularization. The majority of the scaffold is degraded in 14 d, leaving enough space for cell proliferation and vessel formation. The in vitro results show that the scaffolds upregulate the expression of Hif-1 and vascular endothelial growth factor, and enhance the interaction between fibroblasts and endothelial cells. The in vivo studies show a higher expression of angiogenesis related cytokines. This study demonstrates that the DFO released from hydrogel nanofibrous scaffolds of quick degradation can interfere with the required prolyl-hydroxylases cofactors by acting as Fe2+ chelator and upregulate the expression of Hif-1, leading to a significant increase of the neovascularization.

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出版当年[2015]版:
大类 | 1 区 工程技术
小类 | 1 区 工程:生物医学 2 区 材料科学:生物材料 3 区 纳米科技
最新[2023]版:
大类 | 2 区 医学
小类 | 2 区 工程:生物医学 2 区 材料科学:生物材料 2 区 纳米科技
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出版当年[2014]版:
Q1 ENGINEERING, BIOMEDICAL Q1 NANOSCIENCE & NANOTECHNOLOGY Q1 MATERIALS SCIENCE, BIOMATERIALS
最新[2023]版:
Q1 NANOSCIENCE & NANOTECHNOLOGY Q1 ENGINEERING, BIOMEDICAL Q1 MATERIALS SCIENCE, BIOMATERIALS

影响因子: 最新[2023版] 最新五年平均 出版当年[2014版] 出版当年五年平均 出版前一年[2013版] 出版后一年[2015版]

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第一作者机构: [1]Shanghai Institute of Traumatology and Orthopaedics, Shanghai Key Laboratory for Prevention and Treatmentof Bone and Joint Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China
通讯作者:
通讯机构: [1]Shanghai Institute of Traumatology and Orthopaedics, Shanghai Key Laboratory for Prevention and Treatmentof Bone and Joint Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin 2nd Road, Shanghai, 200025, P. R. China [3]Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, FI-00014, Finland [4]Harvard John A. Paulson School of Applied Science and Engineering, Harvard University, Cambridge, MA, 02138, USA [5]Rapid Manufacturing Engineering Center of Shanghai University, 99 Shangda Road, Shanghai, 200444, P. R. China [8]Department of Orthopedics, The First Affiliated Hospital of Soochow University, Orthopedic Institute, Soochow University, 708 Renmin Road, Suzhou, Jiangsu, 215006, P. R. China
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