Dental pulp stem cell-derived intracellular vesicles prevent orthodontic relapse by inhibiting PI3K/Akt/NF-κB-mediated osteoclast activity

Abstract Background Orthodontic relapse, the undesired deviation of teeth from their corrected positions, remains a significant challenge in clinical orthodontics. Incomplete periodontal bone remodeling has been identified as a key factor in this process. Despite decades of research, currently there...

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Main Authors: Boyuan Peng, Ziwei Li, Yong Cheng, Henghua Jiang, Qingsong Ye, Guangli Han
Format: Article
Language:English
Published: BMC 2025-01-01
Series:Stem Cell Research & Therapy
Subjects:
Online Access:https://doi.org/10.1186/s13287-025-04146-3
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author Boyuan Peng
Ziwei Li
Yong Cheng
Henghua Jiang
Qingsong Ye
Guangli Han
author_facet Boyuan Peng
Ziwei Li
Yong Cheng
Henghua Jiang
Qingsong Ye
Guangli Han
author_sort Boyuan Peng
collection DOAJ
description Abstract Background Orthodontic relapse, the undesired deviation of teeth from their corrected positions, remains a significant challenge in clinical orthodontics. Incomplete periodontal bone remodeling has been identified as a key factor in this process. Despite decades of research, currently there are no effective strategies to prevent relapse. Methods We isolated and identified dental pulp stem cell-derived intracellular vesicles (DPSC-IV) from human dental pulp tissue. To investigate its effect, DPSC-IV was added to osteoblast or osteoclast differentiation medium. During the orthodontic retention period, DPSC-IV was administrated to rats by subgingival injection. Relapse distance and relapse rate were calculated to evaluate DPSC-IV’s ability to prevent relapse. Additionally, Western blot analysis were used to examine DPSC-IV’s inhibitory effect on osteoclast differentiation. Results DPSC-IV significantly promoted osteoblast differentiation and inhibited osteoclast differentiation. Application of DPSC-IV during retention resulted in a significant reduction in both relapse distance and relapse rate, with improved periodontal structure and decreased osteoclast activity. This effect was mediated by the PI3K/Akt/NF-κB signaling pathway and could be reversed by the PI3K activator insulin-like growth factor-1 (IGF-1). Conclusion This study highlights the potential of DPSC-IV as a novel preventive approach against orthodontic relapse, offering a novel strategy for maintaining long-term orthodontic stability. Graphical Abstract
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spelling doaj-art-e0bd93c58e6f4713814da8d455b81b532025-01-26T12:18:08ZengBMCStem Cell Research & Therapy1757-65122025-01-0116111410.1186/s13287-025-04146-3Dental pulp stem cell-derived intracellular vesicles prevent orthodontic relapse by inhibiting PI3K/Akt/NF-κB-mediated osteoclast activityBoyuan Peng0Ziwei Li1Yong Cheng2Henghua Jiang3Qingsong Ye4Guangli Han5State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan UniversityCenter of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan UniversityState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan UniversityState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan UniversityCenter of Regenerative Medicine, Department of Stomatology, Renmin Hospital of Wuhan UniversityState Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of Stomatology, School & Hospital of Stomatology, Wuhan UniversityAbstract Background Orthodontic relapse, the undesired deviation of teeth from their corrected positions, remains a significant challenge in clinical orthodontics. Incomplete periodontal bone remodeling has been identified as a key factor in this process. Despite decades of research, currently there are no effective strategies to prevent relapse. Methods We isolated and identified dental pulp stem cell-derived intracellular vesicles (DPSC-IV) from human dental pulp tissue. To investigate its effect, DPSC-IV was added to osteoblast or osteoclast differentiation medium. During the orthodontic retention period, DPSC-IV was administrated to rats by subgingival injection. Relapse distance and relapse rate were calculated to evaluate DPSC-IV’s ability to prevent relapse. Additionally, Western blot analysis were used to examine DPSC-IV’s inhibitory effect on osteoclast differentiation. Results DPSC-IV significantly promoted osteoblast differentiation and inhibited osteoclast differentiation. Application of DPSC-IV during retention resulted in a significant reduction in both relapse distance and relapse rate, with improved periodontal structure and decreased osteoclast activity. This effect was mediated by the PI3K/Akt/NF-κB signaling pathway and could be reversed by the PI3K activator insulin-like growth factor-1 (IGF-1). Conclusion This study highlights the potential of DPSC-IV as a novel preventive approach against orthodontic relapse, offering a novel strategy for maintaining long-term orthodontic stability. Graphical Abstracthttps://doi.org/10.1186/s13287-025-04146-3Orthodontic tooth movementIntercellular vesiclesBone remodelingOral medicineStem cellsCell communication
spellingShingle Boyuan Peng
Ziwei Li
Yong Cheng
Henghua Jiang
Qingsong Ye
Guangli Han
Dental pulp stem cell-derived intracellular vesicles prevent orthodontic relapse by inhibiting PI3K/Akt/NF-κB-mediated osteoclast activity
Stem Cell Research & Therapy
Orthodontic tooth movement
Intercellular vesicles
Bone remodeling
Oral medicine
Stem cells
Cell communication
title Dental pulp stem cell-derived intracellular vesicles prevent orthodontic relapse by inhibiting PI3K/Akt/NF-κB-mediated osteoclast activity
title_full Dental pulp stem cell-derived intracellular vesicles prevent orthodontic relapse by inhibiting PI3K/Akt/NF-κB-mediated osteoclast activity
title_fullStr Dental pulp stem cell-derived intracellular vesicles prevent orthodontic relapse by inhibiting PI3K/Akt/NF-κB-mediated osteoclast activity
title_full_unstemmed Dental pulp stem cell-derived intracellular vesicles prevent orthodontic relapse by inhibiting PI3K/Akt/NF-κB-mediated osteoclast activity
title_short Dental pulp stem cell-derived intracellular vesicles prevent orthodontic relapse by inhibiting PI3K/Akt/NF-κB-mediated osteoclast activity
title_sort dental pulp stem cell derived intracellular vesicles prevent orthodontic relapse by inhibiting pi3k akt nf κb mediated osteoclast activity
topic Orthodontic tooth movement
Intercellular vesicles
Bone remodeling
Oral medicine
Stem cells
Cell communication
url https://doi.org/10.1186/s13287-025-04146-3
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