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http://hdl.handle.net/1942/40269
Title: | Biomimetic Periodontal Ligament Transplantation Activated by Gold Nanoparticles Protects Alveolar Bone | Authors: | Zong, Chen Van Holm, Wannes BRONCKAERS, Annelies Zhao, Zuodong Cokic, Stevan Aktan, Merve Kubra Castro, Ana Belen Van Meerbeek, Bart Braem, Annabel Willems , Guy de Llano-Perula, Maria Cadenas |
Issue Date: | 2023 | Publisher: | WILEY | Source: | Advanced Healthcare Materials, 12 (15) (Art N° 2300328) | Abstract: | Stem cell therapy might be a promising method to stimulate alveolar bone regeneration, which is currently a major clinical challenge. However, its therapeutic features largely depend on pretreatment and transplantation preparation. Herein, a novel biomimetic periodontal ligament transplantation composed of human periodontal ligament stem cells (hPDLSCs) pretreated with gold nanocomplexes (AuNCs) and embedded in a type-I collagen hydrogel scaffold is developed to protect alveolar bone from resorption. AuNCs are readily absorbed by primary hPDLSCs, with limited cytotoxicity, and promote osteogenic differentiation of hPDLSCs effectively in vitro. In addition, the AuNCs-induced hPDLSCs are encapsulated with type-I collagen hydrogel scaffold to mimic their native physiological niche, and then are transplant into a rat model of alveolar bone resorption. Both micro-computed tomography (micro-CT) and immunohistochemical assays demonstrate that alveolar bone loss is significantly prevented. Furthermore, the underlying therapeutic mechanism is elucidated, in which transplantation-activated osteogenesis is associated with autophagy, which enable bone remodeling and regeneration. This study provides critical insight into the role of PDLSCs in bone homeostasis and proposes an innovative AuNCs-based strategy for stem cell therapy in bone regeneration. | Notes: | Zong, C (corresponding author), Univ Leuven, KU Leuven, Dept Oral Hlth Sci Orthodont, B-3000 Leuven, Belgium.; Zong, C (corresponding author), Univ Hosp Leuven, Dent, UZ Leuven, B-3000 Leuven, Belgium. chen.zong@kuleuven.be |
Keywords: | alveolar bone;autophagy;bone regeneration;gold nanoparticles;periodontal ligament;stem cell transplantation;tooth movement | Document URI: | http://hdl.handle.net/1942/40269 | ISSN: | 2192-2640 | e-ISSN: | 2192-2659 | DOI: | 10.1002/adhm.202300328 | ISI #: | 000986182700001 | Rights: | 2023 Wiley-VCH GmbH | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
Files in This Item:
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Adv Healthcare Materials - 2023 - Zong.pdf Restricted Access | Published version | 7.27 MB | Adobe PDF | View/Open Request a copy |
Zong ea_2023_Biomimetic Periodontal Ligament Transplantation Activated by Gold Nanoparticles Protects Alveolar Bone_A.pdf | Peer-reviewed author version | 2.17 MB | Adobe PDF | View/Open |
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