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Physically Cross-Linked DNA Hydrogel-Based Sustained Cytokine Delivery for In Situ Diabetic Alveolar Bone Rebuilding.

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机构: [1]Department of Endocrinology and Metabolism, Center for Diabetes and Metabolism Research, West China Hospital, Sichuan University, Chengdu 610041, China. [2]The Rolf Luft Research Center for Diabetes and Endocrinology, Karolinska Institutet, SE-17176 Stockholm, Sweden. [3]Laboratory of Stem Cell and Tissue Engineering, Orthopedic Research Institute, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China. [4]Department of General Medicine, Chongqing University Central Hospital, Chongqing Emergency Medical Center, Chongqing 400014, China. [5]Department of Pharmacy, West China Hospital, Sichuan University, Chengdu 610041, China. [6]Core Facility of West China Hospital, Sichuan University, Chengdu 610041, China. [7]Department of Thyroid and Parathyroid Surgery, West China Hospital, Sichuan University, Chengdu 610041, China. [8]West China School of Nursing, West China Hospital, Sichuan University, Chengdu 610041, China. [9]Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China. [10]The Center for Growth, Metabolism and Aging, The College of Life Sciences, Sichuan University, Chengdu 610065, China. [11]Division of Endocrinology and Metabolism, National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center of Biotherapy, Chengdu 610041, China.
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The development of a biodegradable and shape-adaptable bioscaffold that can enhance local cytokine retention and bioactivity is essential for the application of immunotherapy in periodontal diseases. Here, we report a biodegradable, anti-inflammatory, and osteogenic ILGel that uses a physically cross-linked DNA hydrogel as a soft bioscaffold for the long-term sustained release of cytokine interleukin-10 (IL-10) to accelerate diabetic alveolar bone rebuilding. Porous microstructures of ILGel favored the encapsulation of IL-10 and maintained IL-10 bioactivity for at least 7 days. ILGel can be gradually degraded or hydrolyzed under physiological conditions, avoiding the potential undesired side effects on dental tissues. Long-term sustained release of bioactive IL-10 from ILGel not only promoted M2 macrophage polarization and attenuated periodontal inflammation but also triggered osteogenesis of mesenchymal stem cells (MSCs), leading to accelerated alveolar bone formation and healing of alveolar bone defects under diabetic conditions in vivo. ILGel treatment significantly accelerated the defect healing rate of diabetic alveolar injury up to 93.42 ± 4.6% on day 21 post treatment compared to that of free IL-10 treatment (63.30 ± 7.39%), with improved trabecular architectures. Our findings imply the potential application of the DNA hydrogel as the bioscaffold for cytokine-based immunotherapy in diabetic alveolar bone injury and other periodontal diseases.

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出版当年[2022]版:
大类 | 2 区 材料科学
小类 | 2 区 纳米科技 2 区 材料科学:综合
最新[2023]版:
大类 | 2 区 材料科学
小类 | 2 区 材料科学:综合 2 区 纳米科技
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出版当年[2022]版:
Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Q1 NANOSCIENCE & NANOTECHNOLOGY
最新[2023]版:
Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Q1 NANOSCIENCE & NANOTECHNOLOGY

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第一作者机构: [1]Department of Endocrinology and Metabolism, Center for Diabetes and Metabolism Research, West China Hospital, Sichuan University, Chengdu 610041, China.
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