材料科学
再生(生物学)
破骨细胞
生物相容性
生物医学工程
牙周炎
骨愈合
骨组织
纳米纤维
生物物理学
纳米技术
牙科
化学
细胞生物学
体外
医学
生物化学
解剖
生物
冶金
作者
Chenglong Hu,Mei Zhang,Jin Wu,Xing Cao,Luxian Chen,Jiayin Yan,Gaolin Liang,Jiali Tan
标识
DOI:10.1021/acsami.2c21297
摘要
Regeneration of periodontal tissue remains a challenge. Under periodontitis, osteoclasts are overactivated and bone loss occurs. We incorporated sodium alendronate (Alen), a medication commonly used to treat osteoporosis, into a supramolecular hydrogel system in order to create a novel biomaterial that would promote periodontal bone regeneration by inhibiting osteoclast overactivation. The Nap-Gly-Phe-Phe (NapGFF) peptide chain was modified to synthesize the functional Nap-Alen gelator. Afterward, the Nap-Alen/HAP supramolecular hydrogel composite with a suitable hydroxyapatite (HAP) ratio was constructed, which has outstanding mechanical properties and 3D structure. In addition to its good biocompatibility, it can inhibit the proliferation of bone marrow-derived macrophages (BMDMs) and differentiation of osteoclasts. Due to the simultaneous introduction of porous HAP, the hydrogel with a nanofiber structure was formed into a 3D mesh-like sparse porous composite hydrogel. While enhancing the mechanical properties of the gel, the porous structure facilitated the attachment and migration of bone regeneration-related cells. Therefore, it can effectively promote the regeneration of periodontal bone. In the future, by modifying the biophysical properties and loading stem cells or cytokines, this supramolecular hydrogel composite constructed in this study may provide a new strategy for tissue regeneration engineering and provide a preliminary experimental basis for relevant clinical translational studies.
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