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  1. Article ; Online: Macrophage-derived exosomes rescue the TNF-ɑ-suppressed osteo-/cementogenic differentiation of hPDLCs.

    Deng, Yifei / Xiao, Junhong / Huang, Xin / Cao, Zhengguo

    Oral diseases

    2024  

    Abstract: Objective: Inflammatory stimuli compromise the differentiation potency of human periodontal ligament cells (hPDLCs). Macrophage-derived exosomes (M-Exo) play a role in several aspects of cellular activity. This study investigated how M-Exo contributes ... ...

    Abstract Objective: Inflammatory stimuli compromise the differentiation potency of human periodontal ligament cells (hPDLCs). Macrophage-derived exosomes (M-Exo) play a role in several aspects of cellular activity. This study investigated how M-Exo contributes to the osteo-/cementogenic differentiation of hPDLCs under inflammation and the mechanism involved.
    Methods: M-Exo was identified by transmission electron microscopy, western blotting (WB), and dynamic light scattering. The internalization of M-Exo by hPDLCs was observed. After M-Exo treatment, the osteo-/cementogenic markers were detected by RT-qPCR and WB, and alkaline phosphatase (ALP) activity by ALP staining. Tumor necrosis factor alpha (TNF-ɑ) was applied to simulate inflammation. The rescue effect of M-Exo on TNF-ɑ-suppressed differentiation was validated. The p38 MAPK pathway activity was tested and a specific inhibitor was applied to explore the mechanism.
    Results: M-Exo was successfully isolated, identified and internalized by hPDLCs. M-Exo enhanced the osteo-/cementogenic differentiation of hPDLCs, as indicated by upregulated osteo-/cementogenic markers and elevated ALP activity. Moreover, TNF-ɑ inhibited the differentiation capabilities of hPDLCs, on which M-Exo showed a rescue effect. M-Exo activated the p38 MAPK pathway and SB203580 attenuated its promotion effect.
    Conclusion: This study showed that M-Exo ameliorated the TNF-ɑ-suppressed osteo-/cementogenic differentiation of hPDLCs partly through the p38 MAPK pathway.
    Language English
    Publishing date 2024-04-02
    Publishing country Denmark
    Document type Journal Article
    ZDB-ID 1290529-x
    ISSN 1601-0825 ; 1354-523X
    ISSN (online) 1601-0825
    ISSN 1354-523X
    DOI 10.1111/odi.14947
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Mitochondrial Dysfunction in Periodontitis and Associated Systemic Diseases: Implications for Pathomechanisms and Therapeutic Strategies.

    Deng, Yifei / Xiao, Junhong / Ma, Li / Wang, Chuan / Wang, Xiaoxuan / Huang, Xin / Cao, Zhengguo

    International journal of molecular sciences

    2024  Volume 25, Issue 2

    Abstract: Periodontitis is a chronic infectious disorder damaging periodontal tissues, including the gingiva, periodontal ligament, cementum, and alveolar bone. It arises from the complex interplay between pathogenic oral bacteria and host immune response. ... ...

    Abstract Periodontitis is a chronic infectious disorder damaging periodontal tissues, including the gingiva, periodontal ligament, cementum, and alveolar bone. It arises from the complex interplay between pathogenic oral bacteria and host immune response. Contrary to the previous view of "energy factories", mitochondria have recently been recognized as semi-autonomous organelles that fine-tune cell survival, death, metabolism, and other functions. Under physiological conditions, periodontal tissue cells participate in dynamic processes, including differentiation, mineralization, and regeneration. These fundamental activities depend on properly functioning mitochondria, which play a crucial role through bioenergetics, dynamics, mitophagy, and quality control. However, during the initiation and progression of periodontitis, mitochondrial quality control is compromised due to a range of challenges, such as bacterial-host interactions, inflammation, and oxidative stress. Currently, mounting evidence suggests that mitochondria dysfunction serves as a common pathological mechanism linking periodontitis with systemic conditions like type II diabetes, obesity, and cardiovascular diseases. Therefore, targeting mitochondria to intervene in periodontitis and multiple associated systemic diseases holds great therapeutic potential. This review provides advanced insights into the interplay between mitochondria, periodontitis, and associated systemic diseases. Moreover, we emphasize the significance of diverse therapeutic modulators and signaling pathways that regulate mitochondrial function in periodontal and systemic cells.
    MeSH term(s) Humans ; Diabetes Mellitus, Type 2 ; Periodontitis/complications ; Inflammation ; Periodontium ; Mitochondrial Diseases
    Language English
    Publishing date 2024-01-13
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms25021024
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Irisin attenuates P. gingivalis-suppressed osteogenic/cementogenic differentiation of periodontal ligament cells via p38 signaling pathway.

    Huang, Xin / Xiao, Junhong / Wang, Xiaoxuan / Cao, Zhengguo

    Biochemical and biophysical research communications

    2022  Volume 618, Page(s) 100–106

    Abstract: Regeneration of periodontal hard tissues damaged by Porphyromonas gingivalis (P. gingivalis) is essential for tooth stability and dental health. Irisin, a myokine secreted by skeletal muscle, is involved in different biological processes, such as ... ...

    Abstract Regeneration of periodontal hard tissues damaged by Porphyromonas gingivalis (P. gingivalis) is essential for tooth stability and dental health. Irisin, a myokine secreted by skeletal muscle, is involved in different biological processes, such as myogenesis, adipogenesis, neurogenesis and osteogenesis. However, whether irisin regulates the osteogenic/cementogenic differentiation of human periodontal ligament cell (hPDLCs), especially under P. gingivalis-triggered inflammation, remains unknown. In this study, we verified the suppression role of P. gingivalis in the osteogenic/cementogenic differentiation of hPDLCs. Also, compared with the control cells, hPDLCs with irisin stimulation showed higher expression of osteogenic-/cementogenic-related markers, ALP activity and mineralization ability, as measured by RT-qPCR, western blotting, ALP staining and Alizarin red staining, respectively. Moreover, the osteogenic/cementogenic differentiation-facilitating role of irisin was also demonstrated under P. gingivalis-elicited inflammation, which implied a rescue function of irisin in P. gingivalis-suppressed hPDLC differentiation. Finally, the underlying mechanism involved in the process was explored. We observed that the p38 signaling pathway was activated during irisin-accelerated hPDLC differentiation. Furthermore, hPDLC differentiation was weakened after the p38 inhibitor was applied. In summary, we found that irisin can facilitate the osteogenic/cementogenic differentiation of hPDLCs partially through the p38 signaling pathway, which may provide evidence for the regeneration of P. gingivalis-destroyed periodontal hard tissues.
    MeSH term(s) Alkaline Phosphatase/metabolism ; Cell Differentiation/physiology ; Cells, Cultured ; Fibronectins/metabolism ; Humans ; Inflammation/metabolism ; MAP Kinase Signaling System ; Osteogenesis/physiology ; Periodontal Ligament/metabolism ; Signal Transduction ; p38 Mitogen-Activated Protein Kinases/metabolism
    Chemical Substances FNDC5 protein, human ; Fibronectins ; p38 Mitogen-Activated Protein Kinases (EC 2.7.11.24) ; Alkaline Phosphatase (EC 3.1.3.1)
    Language English
    Publishing date 2022-06-07
    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.2022.06.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Irisin attenuates P. gingivalis-suppressed osteogenic/cementogenic differentiation of periodontal ligament cells via p38 signaling pathway

    Huang, Xin / Xiao, Junhong / Wang, Xiaoxuan / Cao, Zhengguo

    Biochemical and biophysical research communications. 2022 Aug. 27, v. 618

    2022  

    Abstract: Regeneration of periodontal hard tissues damaged by Porphyromonas gingivalis (P. gingivalis) is essential for tooth stability and dental health. Irisin, a myokine secreted by skeletal muscle, is involved in different biological processes, such as ... ...

    Abstract Regeneration of periodontal hard tissues damaged by Porphyromonas gingivalis (P. gingivalis) is essential for tooth stability and dental health. Irisin, a myokine secreted by skeletal muscle, is involved in different biological processes, such as myogenesis, adipogenesis, neurogenesis and osteogenesis. However, whether irisin regulates the osteogenic/cementogenic differentiation of human periodontal ligament cell (hPDLCs), especially under P. gingivalis-triggered inflammation, remains unknown. In this study, we verified the suppression role of P. gingivalis in the osteogenic/cementogenic differentiation of hPDLCs. Also, compared with the control cells, hPDLCs with irisin stimulation showed higher expression of osteogenic-/cementogenic-related markers, ALP activity and mineralization ability, as measured by RT-qPCR, western blotting, ALP staining and Alizarin red staining, respectively. Moreover, the osteogenic/cementogenic differentiation-facilitating role of irisin was also demonstrated under P. gingivalis-elicited inflammation, which implied a rescue function of irisin in P. gingivalis-suppressed hPDLC differentiation. Finally, the underlying mechanism involved in the process was explored. We observed that the p38 signaling pathway was activated during irisin-accelerated hPDLC differentiation. Furthermore, hPDLC differentiation was weakened after the p38 inhibitor was applied. In summary, we found that irisin can facilitate the osteogenic/cementogenic differentiation of hPDLCs partially through the p38 signaling pathway, which may provide evidence for the regeneration of P. gingivalis-destroyed periodontal hard tissues.
    Keywords Porphyromonas gingivalis ; adipogenesis ; alizarin ; bone formation ; dental health ; humans ; inflammation ; ligaments ; mineralization ; muscle development ; neurogenesis ; research ; skeletal muscle
    Language English
    Dates of publication 2022-0827
    Size p. 100-106.
    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.2022.06.001
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Using 3D Medical Modeling to Evaluate the Accuracy of Single-Photon Emission Computed Tomography (SPECT) Bone Scintigraphy in Diagnosing Condylar Hyperplasia.

    Xiao, Junhong / Wu, Zhongxing / Ye, Wengwanyue

    Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons

    2021  Volume 80, Issue 2, Page(s) 285.e1–285.e9

    Abstract: Purpose: To evaluate the accuracy of single-photon emission computed tomography (SPECT) in diagnosing unilateral condylar hyperplasia (UCH) and to describe the condylar growth of patients with UCH.: Materials and methods: Using a retrospective study ... ...

    Abstract Purpose: To evaluate the accuracy of single-photon emission computed tomography (SPECT) in diagnosing unilateral condylar hyperplasia (UCH) and to describe the condylar growth of patients with UCH.
    Materials and methods: Using a retrospective study design, patients with UCH who had undergone SPECT and cone-beam computed tomography (CBCT) examinations at the same time were included in the study. We used 3D medical models based on CBCT data as the gold standard. The SPECT results were compared with the model data, and the sensitivity and specificity were calculated. To further describe the condylar growth activity, statistical analysis was performed, and the P value was set at 0.05.
    Results: The sample was composed of 75 patients. The sensitivity of SPECT was 55.3%, the specificity was 48.6%, and the area under the receiver operating characteristic curve was 0.53. There was no significant difference in sex between patients with and without active growth.
    Conclusion: The sensitivity and specificity of SPECT are poor, and SPECT alone is not suitable for evaluating the active stage of condylar growth. 3D medical modeling has good prospects for application in the diagnosis of condylar hyperplasia.
    MeSH term(s) Humans ; Hyperplasia/diagnostic imaging ; Mandibular Condyle/diagnostic imaging ; Mandibular Condyle/pathology ; Retrospective Studies ; Sensitivity and Specificity ; Tomography, Emission-Computed, Single-Photon
    Language English
    Publishing date 2021-09-17
    Publishing country United States
    Document type Journal Article
    ZDB-ID 392404-x
    ISSN 1531-5053 ; 0278-2391
    ISSN (online) 1531-5053
    ISSN 0278-2391
    DOI 10.1016/j.joms.2021.09.005
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Genetically engineered M2-like macrophage-derived exosomes for

    Huang, Xin / Deng, Yifei / Xiao, Junhong / Wang, Huiyi / Yang, Qiudong / Cao, Zhengguo

    Bioactive materials

    2023  Volume 32, Page(s) 473–487

    Abstract: Cementum, a thin layer of mineralized tissue covering tooth root surface, is recognized as the golden standard in periodontal regeneration. However, current efforts mainly focus on alveolar bone regeneration rather than cementum regeneration, and rarely ... ...

    Abstract Cementum, a thin layer of mineralized tissue covering tooth root surface, is recognized as the golden standard in periodontal regeneration. However, current efforts mainly focus on alveolar bone regeneration rather than cementum regeneration, and rarely take
    Language English
    Publishing date 2023-10-27
    Publishing country China
    Document type Journal Article
    ISSN 2452-199X
    ISSN (online) 2452-199X
    DOI 10.1016/j.bioactmat.2023.10.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Study on water purification with warm and cold season aquatic plants

    Sun Jiajun / Zhang Yajie / Ma Guangyu / Xiao Junhong / Cai Yajing / Wang Zhi / Cao Hongbin

    E3S Web of Conferences, Vol 260, p

    2021  Volume 01016

    Abstract: As a national key protection and restoration project, ecological restoration of Baiyangdian Wetland has an important significance for environmental management. As the research area in Zaozhadian wetland, the purification effect of warm season and cold ... ...

    Abstract As a national key protection and restoration project, ecological restoration of Baiyangdian Wetland has an important significance for environmental management. As the research area in Zaozhadian wetland, the purification effect of warm season and cold season aquatic plants was studied under different overflying water qualities. It provides a theoretical and experimental basis for the ecological environment restoration and management of wetlands. The results showed that the warm season and cold season aquatic plants all played important roles on the nitrogen and phosphorus removal and maintained the stable water environmental from the nutrient release from soil. The warm season plant-mixed Myriophyllum spicatum and Ceratophyllum demersum and the cold season plant-Potamogeton crispus L. can be reasonably configurated for the wetland restoration.
    Keywords Environmental sciences ; GE1-350
    Language English
    Publishing date 2021-01-01T00:00:00Z
    Publisher EDP Sciences
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article: CKIP-1 mediates

    Huang, Xin / Xiao, Junhong / Wang, Huiyi / Peng, Yan / Liu, Heyu / Ma, Li / Wang, Xiaoxuan / Cao, Zhengguo

    Journal of oral microbiology

    2023  Volume 15, Issue 1, Page(s) 2236427

    Abstract: Objectives: Casein kinase 2 interacting protein-1 (CKIP-1) is a versatile player involved in various biological processes. However, whether CKIP-1 mediates the osteogenic/cementogenic differentiation of periodontal ligament cells (PDLCs) under : ... ...

    Abstract Objectives: Casein kinase 2 interacting protein-1 (CKIP-1) is a versatile player involved in various biological processes. However, whether CKIP-1 mediates the osteogenic/cementogenic differentiation of periodontal ligament cells (PDLCs) under
    Material and methods: The effect of Pg on PDLC differentiation was first verified. CKIP-1 expression in Pg-infected PDLCs or in PDL of apical periodontitis (AP) mice was detected. The changes of CKIP-1 during PDLC differentiation was also determined. PDLC differentiation capacity in
    Results: The suppression effect of Pg on PDLC differentiation was demonstrated. CKIP-1 increased in the PDL of AP mice and Pg-induced PDLCs, and decreased gradually during PDLC differentiation. Increased OSX and RUNX2 expression in PDL were observed in
    Conclusions: CKIP-1 mediated the osteogenic/cementogenic differentiation of PDLCs partially through p38 signaling pathway, which may provide evidence for the regeneration of periodontal hard tissues damaged by Pg.
    Language English
    Publishing date 2023-07-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2523919-3
    ISSN 2000-2297
    ISSN 2000-2297
    DOI 10.1080/20002297.2023.2236427
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: CKIP-1 Promotes P. gingivalis-Induced Inflammation of Periodontal Soft Tissues by Inhibiting Autophagy.

    Xiao, Junhong / Huang, Xin / Wang, Huiyi / Peng, Yan / Liu, Heyu / Huang, Hantao / Ma, Li / Wang, Chuan / Wang, Xiaoxuan / Cao, Zhengguo

    Inflammation

    2023  Volume 46, Issue 5, Page(s) 1997–2010

    Abstract: As a chronic inflammatory disease, periodontitis involves many biological processes including autophagy. At the same time, casein kinase 2 interacting protein-1 (CKIP-1) was reported to play a role in regulation of inflammation. But whether CKIP-1 and ... ...

    Abstract As a chronic inflammatory disease, periodontitis involves many biological processes including autophagy. At the same time, casein kinase 2 interacting protein-1 (CKIP-1) was reported to play a role in regulation of inflammation. But whether CKIP-1 and autophagy interact in periodontitis remains unclear. In this paper, our research team verified the levels of CKIP-1 expression and autophagy increase in the periodontal tissues of a ligature-induced periodontitis mouse model. And this result was also confirmed in Porphyromonas gingivalis (Pg)-induced human gingival fibroblasts (HGF) and human periodontal ligament cells (PDLC). We also showed the autophagy level in periodontal tissues is higher in Ckip-1 knockout (KO) mice than wild type (WT). At the same time, CKIP-1 knockdown lentivirus was used in PDLC and HGF, and it was found that silencing CKIP-1 significantly activated autophagy. Unfortunately, the regulatory role of autophagy in periodontitis is still unclear. Then, the autophagy agonist Rapamycin and inhibitor 3-MA were used in a periodontitis mouse model to investigate periodontal tissue destruction. We found the inflammation in periodontal tissue was reduced when autophagy activated. All these conclusions have been verified both in vivo and in vitro experiments. Finally, our research proved that silencing CKIP-1 reduces the expression of inflammatory cytokines in Pg-induced PDLC and HGF by regulating autophagy. Overall, a new role for CKIP-1 in regulating periodontal tissue inflammation was demonstrated in our study, and it is possible to treat periodontitis by targeting the CKIP-1 gene.
    MeSH term(s) Mice ; Animals ; Humans ; Inflammation/metabolism ; Periodontitis/metabolism ; Gingiva/metabolism ; Cytokines/metabolism ; Porphyromonas gingivalis/metabolism ; Autophagy ; Carrier Proteins/metabolism
    Chemical Substances Cytokines ; Carrier Proteins
    Language English
    Publishing date 2023-06-23
    Publishing country United States
    Document type Journal Article
    ZDB-ID 434408-x
    ISSN 1573-2576 ; 0360-3997
    ISSN (online) 1573-2576
    ISSN 0360-3997
    DOI 10.1007/s10753-023-01856-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Tet methylcytosine dioxygenase 1 modulates Porphyromonas gingivalis-triggered pyroptosis by regulating glycolysis in cementoblasts.

    Peng, Yan / Wang, Huiyi / Huang, Xin / Liu, Heyu / Xiao, Junhong / Wang, Chuan / Ma, Li / Wang, Xiaoxuan / Cao, Zhengguo

    Annals of the New York Academy of Sciences

    2023  Volume 1523, Issue 1, Page(s) 119–134

    Abstract: Porphyromonas gingivalis is involved in the pathogenesis of multiple polymicrobial biofilm-induced inflammatory diseases, including apical periodontitis, and it triggers pyroptosis accompanied by robust inflammatory responses. Tet methylcytosine ... ...

    Abstract Porphyromonas gingivalis is involved in the pathogenesis of multiple polymicrobial biofilm-induced inflammatory diseases, including apical periodontitis, and it triggers pyroptosis accompanied by robust inflammatory responses. Tet methylcytosine dioxygenase 1 (TET1), an epigenetic modifier enzyme, has been is correlated with inflammation, though an association of TET1 and P. gingivalis-related pyroptosis in cementoblasts and the molecular mechanisms has not been shown. Our study here demonstrated that P. gingivalis downregulated Tet1 expression and elicited CASP11- and GSDMD-dependent pyroptosis. Additionally, Tet1 mRNA silencing in cementoblasts appeared to result in a more severe pyroptotic phenotype, where levels of CASP11 and GSDMD cleavage, lactate dehydrogenase release, and IL-1β and IL-18 production were significantly increased. Moreover, Tet1 overexpression resulted in blockade of pyroptosis activation accompanied by inflammation moderation. Further analyses revealed that TET1 modulated glycolysis, confirmed by the application of the specific inhibitor 2-deoxy-d-glucose (2-DG). The pyroptosis phenotype enhanced by Tet1 silencing was moderated by 2-DG upon P. gingivalis invasion. Taken together, these data show the effects and underlying mechanisms of TET1 on pyroptosis and inflammatory phenotype induced by P. gingivalis in cementoblasts, and provides insight into the involvement of P. gingivalis in apical periodontitis and, possibly, other inflammatory diseases.
    MeSH term(s) Humans ; Pyroptosis ; Porphyromonas gingivalis/metabolism ; Dental Cementum/metabolism ; Inflammation/metabolism ; Periapical Periodontitis ; Glycolysis ; Dioxygenases/metabolism ; Mixed Function Oxygenases/metabolism ; Proto-Oncogene Proteins/genetics ; Proto-Oncogene Proteins/metabolism
    Chemical Substances Dioxygenases (EC 1.13.11.-) ; TET1 protein, human (EC 1.-) ; Mixed Function Oxygenases (EC 1.-) ; Proto-Oncogene Proteins
    Language English
    Publishing date 2023-03-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 211003-9
    ISSN 1749-6632 ; 0077-8923
    ISSN (online) 1749-6632
    ISSN 0077-8923
    DOI 10.1111/nyas.14979
    Database MEDical Literature Analysis and Retrieval System OnLINE

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