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  1. Article: Effect of Swell1 on regulating chondrocyte hypertrophy during the condylar osteochondral development process in mice

    Chen, Long / Chen, Yu / Xu, Yanting / Shen, Steve GF. / Dai, Jiewen

    Biochemical and biophysical research communications. 2022 Jan. 29, v. 590

    2022  

    Abstract: Chondrocyte hypertrophy is a significant factor in cartilage development, yet the molecular mechanism for cell volume expand during the process is remains unclear. In the present study, the relationship between Swell1, a cell volume regulated anion ... ...

    Abstract Chondrocyte hypertrophy is a significant factor in cartilage development, yet the molecular mechanism for cell volume expand during the process is remains unclear. In the present study, the relationship between Swell1, a cell volume regulated anion channel, and chondrocyte hypertrophy was explored. The results reveal that the spatiotemporal expression of Swell1 was similar with the development process of hypertrophic chondrocytes in condyles. Through Col10a1 mediated knock out of Swell1 in hypertrophy chondrocytes, we found that there are less obvious boundary between different condylar cartilage layers in which increased hypertrophic chondrocytes were scattered in all three cartilage layers. The cortical bone mass and bone mineral density in the subchondral bone significantly increased. Additionally, knock out of Swell1 could increase the expression of OCN in the femur condyle. Based on the aforementioned findings, a conclusion could be drawn that Swell1 is a significant factor in chondrocyte hypertrophy during the condylar osteochondral development process, and there was some difference between the mandibular and femur condyles, which will provide some new clues for understanding the development of cartilage and related diseases.
    Keywords bone density ; cartilage ; chondrocytes ; femur ; hypertrophy ; research
    Language English
    Dates of publication 2022-0129
    Size p. 42-48.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 205723-2
    ISSN 0006-291X ; 0006-291X
    ISSN (online) 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2021.12.086
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Mandibular stability and condylar changes following orthognathic surgery in mandibular hypoplasia patients associated with preoperative condylar resorption.

    Wang, Minjiao / Qian, Yifeng / Zhao, Hanjiang / Zhu, Min / Yu, Hongbo / Shen, Steve Gf

    Clinical oral investigations

    2022  Volume 26, Issue 12, Page(s) 7083–7093

    Abstract: Objectives: To evaluate postoperative mandibular stability and condylar changes in patients with mandibular hypoplasia and preoperative condylar resorption (CR) undergoing orthognathic surgery.: Materials and methods: Fifty-four patients were ... ...

    Abstract Objectives: To evaluate postoperative mandibular stability and condylar changes in patients with mandibular hypoplasia and preoperative condylar resorption (CR) undergoing orthognathic surgery.
    Materials and methods: Fifty-four patients were included in this retrospective study. Computed tomography (CT) scans were acquired preoperatively (T0), 2-7 days immediate postoperatively (T1), and at least 1 year postoperatively (T2). Three-dimensional (3D) cephalometric analysis and measurements of condylar angle, volume, and position (joint spaces) were performed. A 2-mm mandibular relapse was deemed clinically acceptable. We also analyzed the correlations between relapse and postoperative CR and susceptible factors using a multivariate logistic regression model.
    Results: The results showed one year after the surgery, the average mandibular relapse was 1.0 mm (p < 0.05), and the average reduction of condylar volume was 152.4 mm
    Conclusions: While patients with mandibular hypoplasia and preoperative CR were vulnerable to further condylar resorption after mandibular advancement, the treatment outcomes were generally clinically acceptable. Postoperative relapse was associated with a larger than 4.2 mm of mandibular advancement measured at B-CP and a larger than 1.6 mm of superior joint space measured at SJS, and postoperative CR was associated with a larger than 1.8 mm of mandibular vertical increasement measured at B-AP.
    Clinical relevance: The findings of this study suggested that the mandibular advancement might be limited to 5 mm for patients with preoperative CR. A concomitant advancement genioplasty might also be considered to achieve a better facial profile in these patients.
    MeSH term(s) Humans ; Orthognathic Surgery ; Osteotomy, Sagittal Split Ramus/methods ; Retrospective Studies ; Mandibular Condyle/diagnostic imaging ; Mandibular Condyle/surgery ; Cephalometry/methods ; Recurrence
    Language English
    Publishing date 2022-09-24
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1364490-7
    ISSN 1436-3771 ; 1432-6981
    ISSN (online) 1436-3771
    ISSN 1432-6981
    DOI 10.1007/s00784-022-04668-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Magnesium-containing bioceramics stimulate exosomal miR-196a-5p secretion to promote senescent osteogenesis through targeting

    Qi, Lei / Fang, Xin / Yan, Jinge / Pan, Cancan / Ge, Weiwen / Wang, Jing / Shen, Steve Gf / Lin, Kaili / Zhang, Lei

    Bioactive materials

    2023  Volume 33, Page(s) 14–29

    Abstract: Stem cell senescence is characterized by progressive functional dysfunction and secretory phenotypic changes including decreased proliferation, dysfunction of osteogenic and angiogenic differentiation, increased secretion of the senescence-associated ... ...

    Abstract Stem cell senescence is characterized by progressive functional dysfunction and secretory phenotypic changes including decreased proliferation, dysfunction of osteogenic and angiogenic differentiation, increased secretion of the senescence-associated secretory phenotype (SASP), which bring difficulties for bone repair. Rescuing or delaying senescence of aged bone marrow mesenchymal stem cells (O-BMSCs) was considered as effective strategy for bone regeneration in aging microenvironment. Magnesium (Mg) ion released from bioceramics was reported to facilitate bone regeneration via enhancing osteogenesis and alleviating senescence. In this study, Akermanite biocreamics (Akt) containing Mg ion as a model was demonstrated to promote osteogenesis and angiogenesis effects of O-BMSCs by activating the MAPK signaling pathway
    Language English
    Publishing date 2023-11-04
    Publishing country China
    Document type Editorial
    ISSN 2452-199X
    ISSN (online) 2452-199X
    DOI 10.1016/j.bioactmat.2023.10.024
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: An overview of polyester/hydroxyapatite composites for bone tissue repairing.

    Fu, Zeyu / Cui, Jinjie / Zhao, Bin / Shen, Steve Gf / Lin, Kaili

    Journal of orthopaedic translation

    2021  Volume 28, Page(s) 118–130

    Abstract: Objectives: The polyester/hydroxyapatite (polyester/HA) composites play an important role in bone tissue repairing, mostly because they mimic the composition and structure of naturally mineralized bone tissue. This review aimed to discuss commonly used ... ...

    Abstract Objectives: The polyester/hydroxyapatite (polyester/HA) composites play an important role in bone tissue repairing, mostly because they mimic the composition and structure of naturally mineralized bone tissue. This review aimed to discuss commonly used geometries of polyester/HA composites, including microspheres, membranes, scaffolds and bulks, and their applications in bone tissue repairing and to discuss existed restrictions and developing trends of polyester/HA.
    Methods: The current review was conducted by searching Web of Science, and Google Scholar for relevant studies published related with polyester/HA composites. Selected studies were analyzed with a focus on the fabrication techniques, properties (mechanical properties, biodegradable properties and biological properties) and applications of polyester/HA composites in bone repairing.
    Results: A total of 111 articles were introduced to discuss the review. Different geometries of polyester/HA composites were discussed. In addition, properties and applications of polyester/HA composites were evaluated. The addition of HA into polyester can adjust the mechanical and biodegradability of composites. Besides, the addition of HA into polyester can improve its osteogenic abilities. The results showed that polyester/HA composites can ideal candidate for bone tissue repairing.
    Conclusion: Polyester/HA composites have many remarkable properties, such as appropriate mechanical strength, biodegradability, favorable biological properties. Diverse geometries of polyester/HA composites have been used in bone repairing, drug delivery and implant fixation. Further work needs to be done to investigate existed restrictions, including the controlled degradation rate, controlled drug release performance, well-matched mechanical properties, and novel fabrication techniques.
    The translational potential of this article: The present review reveals the current state of the polyester/HA composites used in bone tissue repairing, contributing to future trends of polyester/HA composites in the forthcoming future.
    Language English
    Publishing date 2021-04-01
    Publishing country Singapore
    Document type Journal Article
    ZDB-ID 2747531-1
    ISSN 2214-031X
    ISSN 2214-031X
    DOI 10.1016/j.jot.2021.02.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Effect of Swell1 on regulating chondrocyte hypertrophy during the condylar osteochondral development process in mice.

    Chen, Long / Chen, Yu / Xu, Yanting / Shen, Steve Gf / Dai, Jiewen

    Biochemical and biophysical research communications

    2021  Volume 590, Page(s) 42–48

    Abstract: Chondrocyte hypertrophy is a significant factor in cartilage development, yet the molecular mechanism for cell volume expand during the process is remains unclear. In the present study, the relationship between Swell1, a cell volume regulated anion ... ...

    Abstract Chondrocyte hypertrophy is a significant factor in cartilage development, yet the molecular mechanism for cell volume expand during the process is remains unclear. In the present study, the relationship between Swell1, a cell volume regulated anion channel, and chondrocyte hypertrophy was explored. The results reveal that the spatiotemporal expression of Swell1 was similar with the development process of hypertrophic chondrocytes in condyles. Through Col10a1 mediated knock out of Swell1 in hypertrophy chondrocytes, we found that there are less obvious boundary between different condylar cartilage layers in which increased hypertrophic chondrocytes were scattered in all three cartilage layers. The cortical bone mass and bone mineral density in the subchondral bone significantly increased. Additionally, knock out of Swell1 could increase the expression of OCN in the femur condyle. Based on the aforementioned findings, a conclusion could be drawn that Swell1 is a significant factor in chondrocyte hypertrophy during the condylar osteochondral development process, and there was some difference between the mandibular and femur condyles, which will provide some new clues for understanding the development of cartilage and related diseases.
    MeSH term(s) Animals ; Chondrocytes/metabolism ; Chondrocytes/pathology ; Chondrogenesis ; Femur/diagnostic imaging ; Femur/pathology ; Hypertrophy ; Imaging, Three-Dimensional ; Male ; Mandible/diagnostic imaging ; Mandible/embryology ; Mandible/pathology ; Membrane Proteins/metabolism ; Mice, Inbred C57BL ; Mice, Knockout ; Osteogenesis ; X-Ray Microtomography ; Mice
    Chemical Substances LRRC8A protein, mouse ; Membrane Proteins
    Language English
    Publishing date 2021-12-25
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 205723-2
    ISSN 1090-2104 ; 0006-291X ; 0006-291X
    ISSN (online) 1090-2104 ; 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2021.12.086
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Experimental and clinical evaluation of BMP2-CPC graft versus deproteinized bovine bone graft for guided bone regeneration: A pilot study.

    Shen, Hongzhou / Zhi, Yin / Zhu, Fangxing / Si, Jiawen / Shi, Jun / Shen, Steve Gf

    Dental materials journal

    2020  Volume 40, Issue 1, Page(s) 191–201

    Abstract: In this study, we proposed BMP2-incorporated calcium phosphate cement (BMP2-CPC), for application in guided bone regeneration (GBR) and compared the experimental bone restoration performance and clinical alveolar bone reconstruction outcome of BMP2-CPC ... ...

    Abstract In this study, we proposed BMP2-incorporated calcium phosphate cement (BMP2-CPC), for application in guided bone regeneration (GBR) and compared the experimental bone restoration performance and clinical alveolar bone reconstruction outcome of BMP2-CPC with those of deproteinized bovine bone (DBB). The animal study indicated that, compared to DBB, which induced the slow ingrowth of new bone, BMP2-CPC induced numerous small growth centers for bone regeneration and facilitated a significant amount of bone regeneration in rabbit calvarial bone defects. Fewer residual graft particles remained in the BMP2-CPC-treated defects than in the DBB-treated defects. The clinical study indicated that BMP2-CPC was similar to DBB in remedying alveolar bone insufficiency and maintaining implant stability. In conclusion, the results of this present study indicate that compared to DBB, BMP2-CPC can significantly enhance in vivo bone regeneration and remodeling in rabbit calvarial bone defects and shows preliminary support on its clinical application in GBR surgeries.
    MeSH term(s) Animals ; Cattle ; Rabbits ; Bone and Bones ; Bone Regeneration ; Calcium Phosphates ; Osteogenesis ; Pilot Projects
    Chemical Substances Calcium Phosphates
    Language English
    Publishing date 2020-10-07
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 605650-7
    ISSN 1881-1361 ; 0287-4547
    ISSN (online) 1881-1361
    ISSN 0287-4547
    DOI 10.4012/dmj.2019-437
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: ScRNA-seq links dental fibroblasts heterogeneity with mechanoresponsiveness.

    Xu, Hongyuan / Dai, Qinggang / Wang, Xinyu / Jin, Anting / Yang, Yiling / Huang, Xiangru / Wang, Xijun / Gao, Xin / Sun, Siyuan / Liu, Yuanqi / Zhu, Yanfei / Shen, Steve Gf / Bian, Qian / Jiang, Lingyong

    Journal of periodontal research

    2023  Volume 58, Issue 4, Page(s) 800–812

    Abstract: Background and objective: Periodontal ligament (PDL) and dental pulp (DP) share a common origin but have distinct biological and mechanical functions. To what extent the mechanoresponsive property of PDL can be attributed to its unique transcriptional ... ...

    Abstract Background and objective: Periodontal ligament (PDL) and dental pulp (DP) share a common origin but have distinct biological and mechanical functions. To what extent the mechanoresponsive property of PDL can be attributed to its unique transcriptional profiles of cellular heterogeneity is unclear. This study aims to decipher cellular heterogeneity and distinct mechanoresponsive characteristics of odontogenic soft tissues and their underlying molecular mechanisms.
    Materials and methods: A single-cell comparison of digested human periodontal ligament (PDL) and dental pulp (DP) was performed using scRNA-seq. An in vitro loading model was constructed to measure mechanoresponsive ability. Dual-luciferase assay, overexpression, and shRNA knockdown were used to investigate the molecular mechanism.
    Results: Our results demonstrate striking fibroblast heterogeneity across and within human PDL and DP. We demonstrated that a tissue-specific subset of fibroblasts existed in PDL exhibiting high expression of mechanoresponsive extracellular matrix (ECM) genes, which was verified by an in vitro loading model. ScRNA-seq analysis indicated a particularly enriched regulator in PDL-specific fibroblast subtype, Jun Dimerization Protein 2 (JDP2). Overexpression and knockdown of JDP2 extensively regulated the downstream mechanoresponsive ECM genes in human PDL cells. The force loading model demonstrated that JDP2 responded to tension and that knockdown of JDP2 effectively inhibited the mechanical force-induced ECM remodeling.
    Conclusions: Our study constructed the PDL and DP ScRNA-seq atlas to demonstrate PDL and DP fibroblast cellular heterogeneity and identify a PDL-specific mechanoresponsive fibroblast subtype and its underlying mechanism.
    MeSH term(s) Humans ; Cells, Cultured ; Single-Cell Gene Expression Analysis ; Fibroblasts/metabolism ; Extracellular Matrix ; Periodontal Ligament/metabolism
    Language English
    Publishing date 2023-05-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 390953-0
    ISSN 1600-0765 ; 0022-3484
    ISSN (online) 1600-0765
    ISSN 0022-3484
    DOI 10.1111/jre.13139
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Optimized BMSC-derived osteoinductive exosomes immobilized in hierarchical scaffold via lyophilization for bone repair through Bmpr2/Acvr2b competitive receptor-activated Smad pathway.

    Liu, Anqi / Lin, Dan / Zhao, Hanjiang / Chen, Long / Cai, Bolei / Lin, Kaili / Shen, Steve Gf

    Biomaterials

    2021  Volume 272, Page(s) 120718

    Abstract: Mesenchymal stem cell-derived exosomes (MSC-exos), with its inherent capacity to modulate cellular behavior, are emerging as a novel cell-free therapy for bone regeneration. Herein, focusing on practical applying problems, the osteoinductivity of MSC- ... ...

    Abstract Mesenchymal stem cell-derived exosomes (MSC-exos), with its inherent capacity to modulate cellular behavior, are emerging as a novel cell-free therapy for bone regeneration. Herein, focusing on practical applying problems, the osteoinductivity of MSC-exos produced by different stem cell sources (rBMSCs/rASCs) and culture conditions (osteoinductive/common) were systematically compared to screen out an optimized osteogenic exosome (BMSC-OI-exo). Via bioinformatic analyses by miRNA microarray and in vitro pathway verification by gene silencing and miRNA transfection, we first revealed that the osteoinductivity of BMSC-OI-exo was attributed to multi-component exosomal miRNAs (let-7a-5p, let-7c-5p, miR-328a-5p and miR-31a-5p). These miRNAs targeted Acvr2b/Acvr1 and regulated the competitive balance of Bmpr2/Acvr2b toward Bmpr-elicited Smad1/5/9 phosphorylation. On these bases, lyophilized delivery of BMSC-OI-exo on hierarchical mesoporous bioactive glass (MBG) scaffold was developed to realize bioactivity maintenance and sustained release by entrapment in the surface microporosity of the scaffold. In a rat cranial defect model, the loading of BMSC-OI-exo efficiently enhanced the bone forming capacity of the scaffold and induced rapid initiation of bone regeneration. This paper could provide empirical bases of MSC-exo-based therapy for bone regeneration and theoretical bases of MSC-exo-induced osteogenesis mechanism. The BMSC-OI-exo-loaded MBG scaffold developed here represented a promising bone repairing strategy for future clinical application.
    MeSH term(s) Animals ; Bone Morphogenetic Protein Receptors, Type II ; Bone Regeneration ; Exosomes ; Freeze Drying ; Mesenchymal Stem Cells ; MicroRNAs ; Osteogenesis ; Rats
    Chemical Substances MicroRNAs ; Bmpr2 protein, rat (EC 2.7.11.30) ; Bone Morphogenetic Protein Receptors, Type II (EC 2.7.11.30)
    Language English
    Publishing date 2021-03-27
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 603079-8
    ISSN 1878-5905 ; 0142-9612
    ISSN (online) 1878-5905
    ISSN 0142-9612
    DOI 10.1016/j.biomaterials.2021.120718
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Reducing relapse and accelerating osteogenesis in rapid maxillary expansion using an injectable mesoporous bioactive glass/fibrin glue composite hydrogel.

    Zhao, Hanjiang / Wang, Xiangyu / Jin, Anting / Wang, Minjiao / Wang, Zeying / Huang, Xingtai / Dai, Jiewen / Wang, Xudong / Lin, Dan / Shen, Steve Gf

    Bioactive materials

    2022  Volume 18, Page(s) 507–525

    Abstract: Rapid maxillary expansion (RME), as a common treatment for craniomaxillofacial deformity, faces the challenge of high relapse rates and unsatisfactory therapeutic effects. In this study, a standardized Sprague-Dawley (SD) rat RME model was first ... ...

    Abstract Rapid maxillary expansion (RME), as a common treatment for craniomaxillofacial deformity, faces the challenge of high relapse rates and unsatisfactory therapeutic effects. In this study, a standardized Sprague-Dawley (SD) rat RME model was first established with a modified expander as well as retainer design and optimized anterior maxillary expanding force of 100 g which exerted the most synchronized mobility of mid-palatal suture and incisors. Via the standardized model, the high relapse rate was proven to be attributed to insufficient osteogenesis in expanded suture, requiring long-term retainer wearing in clinical situations. To reduce the relapse rate, mesoporous bioactive glass/fibrin glue (MBG/FG) composite hydrogels were developed for an
    Language English
    Publishing date 2022-03-30
    Publishing country China
    Document type Journal Article
    ISSN 2452-199X
    ISSN (online) 2452-199X
    DOI 10.1016/j.bioactmat.2022.03.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Perinatal stem cells: A promising cell resource for tissue engineering of craniofacial bone.

    Si, Jia-Wen / Wang, Xu-Dong / Shen, Steve Gf

    World journal of stem cells

    2014  Volume 7, Issue 1, Page(s) 149–159

    Abstract: In facing the mounting clinical challenge and suboptimal techniques of craniofacial bone defects resulting from various conditions, such as congenital malformations, osteomyelitis, trauma and tumor resection, the ongoing research of regenerative medicine ...

    Abstract In facing the mounting clinical challenge and suboptimal techniques of craniofacial bone defects resulting from various conditions, such as congenital malformations, osteomyelitis, trauma and tumor resection, the ongoing research of regenerative medicine using stem cells and concurrent advancement in biotechnology have shifted the focus from surgical reconstruction to a novel stem cell-based tissue engineering strategy for customized and functional craniofacial bone regeneration. Given the unique ontogenetical and cell biological properties of perinatal stem cells, emerging evidence has suggested these extraembryonic tissue-derived stem cells to be a promising cell source for extensive use in regenerative medicine and tissue engineering. In this review, we summarize the current achievements and obstacles in stem cell-based craniofacial bone regeneration and subsequently we address the characteristics of various types of perinatal stem cells and their novel application in tissue engineering of craniofacial bone. We propose the promising feasibility and scope of perinatal stem cell-based craniofacial bone tissue engineering for future clinical application.
    Language English
    Publishing date 2014-12-31
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 2583482-4
    ISSN 1948-0210
    ISSN 1948-0210
    DOI 10.4252/wjsc.v7.i1.149
    Database MEDical Literature Analysis and Retrieval System OnLINE

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