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Liu J, Chai XX, Qiu XR, Sun WJ, Tian YL, Guo WH, Yin DC, Zhang CY. Type X collagen knockdown inactivate ITGB1/PI3K/AKT to suppress chronic unpredictable mild stress-stimulated triple-negative breast cancer progression. Int J Biol Macromol 2024; 273:133074. [PMID: 38866293 DOI: 10.1016/j.ijbiomac.2024.133074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 05/19/2024] [Accepted: 06/08/2024] [Indexed: 06/14/2024]
Abstract
Triple-negative breast cancer (TNBC) is the most malignant subtype of breast cancer, has a poor prognosis and limited access to efficient targeted treatments. Chronic unpredictable mild stress (CUMS) is highly risk factor for TNBC occurrence and development. Type X collagen (COL10A1), a crucial protein component of the extracellular matrix, ranks second among all aberrantly expressed genes in TNBC, and it is significantly up-regulated under CUMS. Nevertheless, the impact of CUMS and COL10A1 on TNBC, along with the underlying mechanisms are still unclear. In this research, we studied the effect of CUMS-induced norepinephrine (NE) elevation on TNBC, and uncovered that it notably enhanced TNBC cell proliferation, migration, and invasion in vitro, and also fostering tumor growth and lung metastasis in vivo. Additionally, our investigation found that COL10A1 directly interacted with integrin subunit beta 1 (ITGB1), then activates the downstream PI3K/AKT signaling pathway, thereby promoting TNBC growth and metastasis, while it was reversed by knocking down of COL10A1 or ITGB1. Our study demonstrated that the TNBC could respond to CUMS, and advocate for COL10A1 as a pivotal therapeutic target in TNBC treatment.
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Affiliation(s)
- Jie Liu
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710000, Shaanxi, PR China
| | - Xiao-Xia Chai
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710000, Shaanxi, PR China
| | - Xiao-Rong Qiu
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710000, Shaanxi, PR China
| | - Wen-Jun Sun
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710000, Shaanxi, PR China
| | - Yi-Le Tian
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710000, Shaanxi, PR China
| | - Wei-Hong Guo
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710000, Shaanxi, PR China
| | - Da-Chuan Yin
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710000, Shaanxi, PR China.
| | - Chen-Yan Zhang
- Institute for Special Environmental Biophysics, Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an 710000, Shaanxi, PR China; Research & Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518063, China.
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Tjandra PM, Ripplinger CM, Christiansen BA. The heart-bone connection: relationships between myocardial infarction and osteoporotic fracture. Am J Physiol Heart Circ Physiol 2024; 326:H845-H856. [PMID: 38305753 PMCID: PMC11062618 DOI: 10.1152/ajpheart.00576.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/03/2024]
Abstract
Myocardial infarction (MI) and osteoporotic fracture (Fx) are two of the leading causes of mortality and morbidity worldwide. Although these traumatic injuries are treated as if they are independent, there is epidemiological evidence linking the incidence of Fx and MI, thus raising the question of whether each of these events can actively influence the risk of the other. Atherosclerotic cardiovascular disease and osteoporosis, the chronic conditions leading to MI and Fx, are known to have shared pathoetiology. Furthermore, sustained systemic inflammation after traumas such as MI and Fx has been shown to exacerbate both underlying chronic conditions. However, the effects of MI and Fx outside their own system have not been well studied. The sympathetic nervous system (SNS) and the complement system initiate a systemic response after MI that could lead to subsequent changes in bone remodeling through osteoclasts. Similarly, SNS and complement system activation following fracture could lead to heart tissue damage and exacerbate atherosclerosis. To determine whether damaging bone-heart cross talk may be important comorbidity following Fx or MI, this review details the current understanding of bone loss after MI, cardiovascular damage after Fx, and possible shared underlying mechanisms of these processes.
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Affiliation(s)
- Priscilla M Tjandra
- Department of Orthopaedic Surgery, University of California San Francisco, San Francisco, California, United States
- Biomedical Engineering Graduate Group, University of California Davis, Davis, California, United States
| | - Crystal M Ripplinger
- Biomedical Engineering Graduate Group, University of California Davis, Davis, California, United States
- Department of Pharmacology, University of California Davis Health, Davis, California, United States
| | - Blaine A Christiansen
- Biomedical Engineering Graduate Group, University of California Davis, Davis, California, United States
- Department of Orthopaedic Surgery, University of California Davis Health, Sacramento, California, United States
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Zhou W, Zhou W, Bi Y, Zhou Z, Zhou Z, Chen S, Xie G, Lian Z, Yuan G, Yao G. Antidepressant duloxetine hydrochloride protects against ovariectomy-induced bone loss in mice by inhibiting osteoclast differentiation. Biomed Pharmacother 2023; 168:115810. [PMID: 37913736 DOI: 10.1016/j.biopha.2023.115810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 10/21/2023] [Accepted: 10/26/2023] [Indexed: 11/03/2023] Open
Abstract
BACKGROUND Several studies have reported the association between osteoporosis and major depressive disorder (MDD) as well as the use of antidepressants. However, it remains to be elucidated whether these associations are related to exposure to antidepressants, a consequence of a disease process, or a combination of both. METHODS This study investigates the independent effect of the antidepressant duloxetine hydrochloride (DH) on ovariectomy-induced bone loss in mice. One week after ovariectomy, the treated mice received DH. To explore the mechanism underlying the rescue of bone loss, bone marrow cells were isolated from mouse femurs and tibias, and macrophages extracted from them were induced to become osteoclasts in vitro while being treated with DH. Subsequently, the osteoclasts underwent Bulk RNA-Seq to reveal the involved signaling pathways. The results of the bioinformatic analysis were then validated through in vitro experiments. RESULTS The in vivo experiments demonstrated that DH treatment compromised ovariectomy-induced bone loss after 7 weeks. The in vitro experiments suggested that DH treatment attenuated osteoclast differentiation via the MAPKs/NFATc1 signaling pathway. CONCLUSION The findings from this study suggest that DH, instead of causing bone mass loss, may assist in alleviating postmenopausal osteoporosis. These results can serve as a reference for the clinical treatment of patients with perimenopausal or postmenopausal depression using antidepressants.
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Affiliation(s)
- Weijun Zhou
- Department of Orthopedics, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China
| | - Wenyun Zhou
- Department of Orthopedics, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China
| | - Yonghao Bi
- Department of Orthopedics, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China
| | - Zibin Zhou
- Department of Orthopedics, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China
| | - Zhigao Zhou
- Department of Orthopedics, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China
| | - Shaozhe Chen
- Department of Orthopedics, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China
| | - Gang Xie
- Department of Orthopedics, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Zhen Lian
- Department of Orthopedics, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China
| | - Guixin Yuan
- Department of Orthopedics, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China.
| | - Guanfeng Yao
- Department of Orthopedics, The Second Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, China; Shantou University Medical College, Shantou, Guangdong, China.
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Hou S, Peng S, Dai H, Song J, Xu L, Zhou J, Li L. Mechanical loading and autophagy: A study on the BoNT-A injection-induced condylar cartilage degeneration. Arch Biochem Biophys 2023; 749:109788. [PMID: 37852427 DOI: 10.1016/j.abb.2023.109788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/12/2023] [Accepted: 10/14/2023] [Indexed: 10/20/2023]
Abstract
Botulinum toxin A (BoNT-A) has emerged as a treatment option for temporomandibular disorder (TMD). By injecting BoNT-A into the masseter muscle, it is possible to reduce mechanical loading on the temporomandibular joint (TMJ). However, numerous prior studies have indicated excessive reduction in mechanical loading can have detrimental effects on TMJ cartilage. This study proposes that autophagy, a process influenced by mechanical loading, could play a role in BoNT-A-induced mandibular condyle cartilage degeneration. To explore this hypothesis, we employed both BoNT-A injection and an excessive biting model to induce variations in mechanical loading on the condyle cartilage of C57BL/6 mice, thereby simulating an increase and decrease in mechanical loading, respectively. Results showed a significant reduction in cartilage thickness and downregulation of Runt-related transcription factor 2 (Runx2) expression in chondrocytes following BoNT-A injection. In vitro experiments demonstrated that the reduction of Runx2 expression in chondrocytes is associated with autophagy, possibly dependent on decreased YAP expression induced by low mechanical loading. This study reveals the potential involvement of the YAP/LC3/Runx2 signaling pathway in BoNT-A mediated mandibular condylar cartilage degeneration.
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Affiliation(s)
- Siyu Hou
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, China
| | - Sisi Peng
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, China
| | - Hongwei Dai
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, China
| | - Jinlin Song
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, China
| | - Ling Xu
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China
| | - Jianping Zhou
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, China.
| | - Lingjie Li
- College of Stomatology, Chongqing Medical University, Chongqing, 401147, China; Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences, Chongqing, 401147, China; Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, 401147, China.
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Qin W, Wan Q, Yan J, Han X, Lu W, Ma Z, Ye T, Li Y, Li C, Wang C, Tay FR, Niu L, Jiao K. Effect of Extracellular Ribonucleic Acids on Neurovascularization in Osteoarthritis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301763. [PMID: 37395388 PMCID: PMC10502862 DOI: 10.1002/advs.202301763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 06/14/2023] [Indexed: 07/04/2023]
Abstract
Osteoarthritis is a degenerative disease characterized by abnormal neurovascularization at the osteochondral junctions, the regulatory mechanisms of which remain poorly understood. In the present study, a murine osteoarthritic model with augmented neurovascularization at the osteochondral junction is used to examine this under-evaluated facet of degenerative joint dysfunction. Increased extracellular RNA (exRNA) content is identified in neurovascularized osteoarthritic joints. It is found that the amount of exRNA is positively correlated with the extent of neurovascularization and the expression of vascular endothelial growth factor (VEGF). In vitro binding assay and molecular docking demonstrate that synthetic RNAs bind to VEGF via electrostatic interactions. The RNA-VEGF complex promotes the migration and function of endothelial progenitor cells and trigeminal ganglion cells. The use of VEGF and VEGFR2 inhibitors significantly inhibits the amplification of the RNA-VEGF complex. Disruption of the RNA-VEGF complex by RNase and polyethyleneimine reduces its in vitro activities, as well as prevents excessive neurovascularization and osteochondral deterioration in vivo. The results of the present study suggest that exRNAs may be potential targets for regulating nerve and blood vessel ingrowth under physiological and pathological joint conditions.
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Affiliation(s)
- Wen‐pin Qin
- Department of StomatologyTangdu hospitalThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of StomatologySchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
| | - Qian‐Qian Wan
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of StomatologySchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
| | - Jian‐Fei Yan
- Department of StomatologyTangdu hospitalThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of StomatologySchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
| | - Xiao‐Xiao Han
- Department of StomatologyTangdu hospitalThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of StomatologySchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
| | - Wei‐Cheng Lu
- Department of StomatologyTangdu hospitalThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of StomatologySchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
| | - Zhang‐Yu Ma
- Department of StomatologyTangdu hospitalThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of StomatologySchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
| | - Tao Ye
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of StomatologySchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
| | - Yu‐Tao Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of StomatologySchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
| | - Chang‐Jun Li
- Department of EndocrinologyEndocrinology Research CenterThe Xiangya Hospital of Central South UniversityChangshaHunan410008P. R. China
| | - Chen Wang
- Department of StomatologyThe Eighth Medical Center of PLA General HospitalHaidian DistrictBeijingP. R. China100091
| | - Franklin R. Tay
- Dental College of GeorgiaAugusta UniversityAugustaGA30912USA
| | - Li‐Na Niu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of StomatologySchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
| | - Kai Jiao
- Department of StomatologyTangdu hospitalThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of StomatologySchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032P. R. China
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He J, Qin W, Zhang Y, Yan J, Han X, Gao J, Li Q, Jiao K. Upregulated Mitochondrial Dynamics Is Responsible for the Procatabolic Changes of Chondrocyte Induced by α2-Adrenergic Signal Activation. Cartilage 2023:19476035231189841. [PMID: 37646151 DOI: 10.1177/19476035231189841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/01/2023] Open
Abstract
OBJECTIVE Activation of sympathetic tone is important for cartilage degradation in osteoarthritis (OA). Recent studies reported that sympathetic signals can affect the mitochondrial function of target cells. It is unknown whether this effect exits in chondrocytes and affects chondrocyte catabolism. The contribution of mitochondrial dynamics in the activation of α2-adrenergic signal-mediated chondrocyte catabolism was investigated in this study. DESIGN Primary chondrocytes were stimulated with norepinephrine (NE) alone, or pretreated with an α2-adrenergic receptor (Adra2) antagonist (yohimbine) and followed by stimulation with NE. Changes in chondrocyte metabolism and their mitochondrial dynamics were investigated. RESULTS We demonstrated that NE stimulation induced increased gene and protein expressions of matrix metalloproteinase-3 and decreased level of aggrecan by chondrocytes. This was accompanied by upregulated mitochondriogenesis and the number of mitochondria, when compared with the vehicle-treated controls. Mitochondrial fusion and fission, and mitophagy also increased significantly in response to NE stimulation. Inhibition of Adra2 attenuated chondrocyte catabolism and mitochondrial dynamics induced by NE. CONCLUSIONS The present findings indicate that upregulation of mitochondrial dynamics through mitochondriogenesis, fusion, fission, and mitophagy is responsible for activation of α2-adrenergic signal-mediated chondrocyte catabolism. The hypothesis that "α2-adrenergic signal activation promotes cartilage degeneration in temporomandibular joint osteoarthritis (TMJ-OA) by upregulating mitochondrial dynamics in chondrocytes" is validated. This represents a new regulatory mechanism in the chondrocytes of TMJ-OA that inhibits abnormal activation of mitochondrial fusion and fission is a potential regulator for improving mitochondrial function and inhibiting chondrocyte injury and contrives a potentially innovative therapeutic direction for the prevention of TMJ-OA.
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Affiliation(s)
- Jiaying He
- Department of Stomatology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Wenpin Qin
- Department of Stomatology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Yusong Zhang
- Department of Stomatology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Jianfei Yan
- Department of Stomatology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiaoxiao Han
- Department of Stomatology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
- The College of Life Sciences, Northwest University, Xi'an, China
| | - Jialu Gao
- Department of Stomatology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
| | - Qihong Li
- Department of Stomatology, The Fifth Medical Centre, Chinese PLA General Hospital, Beijing, China
| | - Kai Jiao
- Department of Stomatology, Tangdu Hospital, The Fourth Military Medical University, Xi'an, China
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Huang T, Wan L, Chen Y, Xiong Y, Yuan F, Xie S, Huang J, Lu H. The effect of local sympatholysis on bone-tendon interface healing in a murine rotator cuff repair model. J Orthop Translat 2023; 40:1-12. [PMID: 37181480 PMCID: PMC10173072 DOI: 10.1016/j.jot.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 03/04/2023] [Accepted: 03/22/2023] [Indexed: 05/16/2023] Open
Abstract
Background Although neuroregulation plays an important role in tissue healing, the key neuroregulatory pathways and related neurotransmitters involved in bone-tendon interface (BTI) healing are still unknown. It is reported that sympathetic nerves can regulate cartilage and bone metabolism, which are the basic aspects of BTI repair after injury, through the release of norepinephrine (NE). Thus, the purpose of this study was to explore the effect of local sympatholysis (LS) on BTI healing in a murine rotator cuff repair model. Methods Specifically, C57BL/6 mice underwent unilateral supraspinatus tendon (SST) detachment and repair was established on a total of 174 mature C57BL/6 mice (12 weeks old): 54 mice were used to examine the sympathetic fibers and its neurotransmitter NE for the representation of sympathetic innervation of BTI, while the rest of them were randomly allocated into (LS) group and control group to verify the effect of sympathetic denervation during BTI healing. The LS group were intervened with fibrin sealant containing 10 ng/ml guanethidine, while the control group received fibrin sealant only. Mice were euthanized at postoperative 2, 4 and 8 weeks for immunofluorescent, qRT-PCR, ELISA, Micro-computed tomography (CT), histology and biomechanical evaluations. Results Immunofluorescence, qRT-PCR and ELISA evaluations indicated that there were the expression of tyrosine hydroxylase (TH), NE and β2-adrenergic receptor (β2-AR) at the BTI site. All the above showed a trend of increasing at the early postoperative stage and they started to decrease with the healing time after a significant peak. Meanwhile, local sympathetic denervation of BTI was achieved after the use of guanethidine as shown in the NE ELISA outcomes in two groups. QRT-PCR analysis revealed that the healing interface in the LS group expressed more transcription factors, such as Runx2, Bmp2, Sox9, and Aggrecan, than the control group. Further, radiographic data showed that the LS group significantly possessed higher bone volume fraction (BV/TV), trabecular number (Tb.N), trabecular thickness (Tb.Th), and lower trabecular spacing (Tb.Sp) than the control group. Also, histological test results showed that there was more fibrocartilage regenerated at the healing interface in the LS group compared with the control group. Mechanical testing results demonstrated that the failure load, ultimate strength and stiffness in the LS group were significantly higher at postoperative week 4 (P < 0.05), but not at postoperative week 8 (P > 0.05), compared to the control group. Conclusion The regulation of sympathetic innervation was involved in the healing process of injured BTI, and local sympathetic denervation by using guanethidine was beneficial for BTI healing outcomes.The translational potential of this article: This is the first study to evaluate the expression and specific role of sympathetic innervation during BTI healing. The findings of this study also imply that the antagonists of β2-AR could serve as a potential therapeutic strategy for BTI healing. Also, we firstly successfully constructed a local sympathetic denervation mouse model by using guanethidine loaded fibrin sealant, which provided a new effective methodology for future neuroskeletal biology study.
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Affiliation(s)
- Tingmo Huang
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Liyang Wan
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yang Chen
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yinghong Xiong
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Feifei Yuan
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
- Department of Spine Surgery and Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Shanshan Xie
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Jianjun Huang
- Department of Orthopaedics, Ningde Affiliated Hospital, Fujian Medical University, Ningde, 352000, China
- Corresponding author. Ningde City Hospital, Fujian Medical University, Ningde, 352000, China.
| | - Hongbin Lu
- Department of Sports Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
- Key Laboratory of Organ Injury, Aging and Regenerative Medicine of Hunan Province, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, China
- Corresponding author. Xiangya Hospital, No. 87, Xiangya Road, Kaifu District, Changsha, 410008, China.
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Temporomandibular Joint Osteoarthritis: Pathogenic Mechanisms Involving the Cartilage and Subchondral Bone, and Potential Therapeutic Strategies for Joint Regeneration. Int J Mol Sci 2022; 24:ijms24010171. [PMID: 36613615 PMCID: PMC9820477 DOI: 10.3390/ijms24010171] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/13/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
The temporomandibular joint (TMJ) is a specialized synovial joint that is crucial for the movement and function of the jaw. TMJ osteoarthritis (TMJ OA) is the result of disc dislocation, trauma, functional overburden, and developmental anomalies. TMJ OA affects all joint structures, including the articular cartilage, synovium, subchondral bone, capsule, ligaments, periarticular muscles, and sensory nerves that innervate the tissues. The present review aimed to illustrate the main pathomechanisms involving cartilage and bone changes in TMJ OA and some therapeutic options that have shown potential restorative properties regarding these joint structures in vivo. Chondrocyte loss, extracellular matrix (ECM) degradation, and subchondral bone remodeling are important factors in TMJ OA. The subchondral bone actively participates in TMJ OA through an abnormal bone remodeling initially characterized by a loss of bone mass, followed by reparative mechanisms that lead to stiffness and thickening of the condylar osteochondral interface. In recent years, such therapies as intraarticular platelet-rich plasma (PRP), hyaluronic acid (HA), and mesenchymal stem cell-based treatment (MSCs) have shown promising results with respect to the regeneration of joint structures or the protection against further damage in TMJ OA. Nevertheless, PRP and MSCs are more frequently associated with cartilage and/or bone repair than HA. According to recent findings, the latter could enhance the restorative potential of other therapies (PRP, MSCs) when used in combination, rather than repair TMJ structures by itself. TMJ OA is a complex disease in which degenerative changes in the cartilage and bone develop through intricate mechanisms. The regenerative potential of such therapies as PRP, MSCs, and HA regarding the cartilage and subchondral bone (alone or in various combinations) in TMJ OA remains a matter of further research, with studies sometimes obtaining discrepant results.
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Association between Psychological Status and Condylar Bony Changes in Adults: A Retrospective Survey-Based Study. J Clin Med 2022; 11:jcm11247497. [PMID: 36556113 PMCID: PMC9781577 DOI: 10.3390/jcm11247497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/08/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022] Open
Abstract
Background: This article studies the association between psychological status and condylar bony changes in adults and assesses psychological questionnaires as an indicator of potential condylar bony changes. It is meaningful because condylar bony changes, a severe subtype of TMD and big concern in orthodontic treatment, would likely be ignored in patients with few TMD symptoms, in which case, even with potential psychological problems (depression, somatization and anxiety) being noticed, orthodontists may underestimate the possibility or severity of condylar bony changes and thus may not perform relevant examinations. Methods: A total of 195 adults (145 female and 50 male) who consulted orthodontists and had clinical records were included in this study. Initial CBCT images taken before orthodontic treatment were used for observing their condylar bony changes, and a comprehensive questionnaire conducted by each adult to evaluate psychological status was collected. Age, sex, TMD symptom history, scores on Patient Health Questionnaire-9 (PHQ-9), PHQ-15 and Generalized Anxiety Disorder-7 (GAD-7), and condylar bony changes of these adults were recorded. Odds ratios (OR) and 95% confidence intervals (CIs) for identifying the independent risk factors associated with condylar bony changes were calculated with univariate and multivariate logistic regression analysis. The kappa statistic was used to assess intraobserver reliability of CBCT analysis. Results: The scores of PHQ-15 (OR: 2.088, 95% CI: 1.061−4.108, p < 0.05) and GAD-7 (OR: 2.133, 95% CI: 1.082−4.204, p < 0.05) were correlated with the condylar bony changes on CBCT. Besides, the probability of having condylar bony changes was positively correlated with the number of psychological problems concomitantly present in an adult (OR: 1.440, 95% CI: 1.10−1.867, p < 0.01). The intraobserver agreement value for CBCT analysis was substantial (κ = 0.732). Conclusions: This study found that positive PHQ-15 (somatization) and GAD-7 (anxiety) scores were associated with condylar bony changes in adults. Moreover, the number of psychological problems concomitantly present in an adult was positively associated with the probability of having condylar bony changes.
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10
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Kent MH, Jacob JC, Bowen G, Bhalerao J, Desinor S, Vavra D, Leserve D, Ott KR, Angeles B, Martis M, Sciandra K, Gillenwater K, Glory C, Meisel E, Choe A, Olivares-Navarrete R, Puetzer JL, Lambert K. Disrupted development from head to tail: Pervasive effects of postnatal restricted resources on neurobiological, behavioral, and morphometric outcomes. Front Behav Neurosci 2022; 16:910056. [PMID: 35990727 PMCID: PMC9389412 DOI: 10.3389/fnbeh.2022.910056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/12/2022] [Indexed: 11/13/2022] Open
Abstract
When a maternal rat nurtures her pups, she relies on adequate resources to provide optimal care for her offspring. Accordingly, limited environmental resources may result in atypical maternal care, disrupting various developmental outcomes. In the current study, maternal Long-Evans rats were randomly assigned to either a standard resource (SR) group, provided with four cups of bedding and two paper towels for nesting material or a limited resource (LR) group, provided with a quarter of the bedding and nesting material provided for the SR group. Offspring were monitored at various developmental phases throughout the study. After weaning, pups were housed in same-sex dyads in environments with SRs for continued observations. Subsequent behavioral tests revealed a sex × resource interaction in play behavior on PND 28; specifically, LR reduced play attacks in males while LR increased play attacks in females. A sex × resource interaction was also observed in anxiety-related responses in the open field task with an increase in thigmotaxis in LR females and, in the social interaction task, females exhibited more external rears oriented away from the social target. Focusing on morphological variables, tail length measurements of LR males and females were shorter on PND 9, 16, and 21; however, differences in tail length were no longer present at PND 35. Following the behavioral assessments, animals were perfused at 56 days of age and subsequent immunohistochemical assays indicated increased glucocorticoid receptors in the lateral habenula of LR offspring and higher c-Fos immunoreactivity in the basolateral amygdala of SR offspring. Further, when tail vertebrae and tail tendons were assessed via micro-CT and hydroxyproline assays, results indicated increased trabecular separation, decreased bone volume fraction, and decreased connectivity density in bones, along with reduced collagen concentration in tendons in the LR animals. In sum, although the restricted resources only persisted for a brief duration, the effects appear to be far-reaching and pervasive in this early life stress animal model.
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Affiliation(s)
- Molly H. Kent
- Department of Biology, Virginia Military Institute, Lexington, VA, United States
| | - Joanna C. Jacob
- Department of Psychology, University of Richmond, Richmond, VA, United States
| | - Gabby Bowen
- Department of Psychology, University of Richmond, Richmond, VA, United States
| | - Janhavi Bhalerao
- Department of Psychology, University of Richmond, Richmond, VA, United States
| | - Stephanie Desinor
- Department of Psychology, University of Richmond, Richmond, VA, United States
| | - Dylan Vavra
- Department of Psychology, University of Richmond, Richmond, VA, United States
| | - Danielle Leserve
- Department of Psychology, University of Richmond, Richmond, VA, United States
| | - Kelly R. Ott
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Benjamin Angeles
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Michael Martis
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Katherine Sciandra
- Department of Psychology, University of Richmond, Richmond, VA, United States
| | | | - Clark Glory
- Department of Psychology, University of Richmond, Richmond, VA, United States
| | - Eli Meisel
- Department of Psychology, University of Richmond, Richmond, VA, United States
| | - Allison Choe
- Department of Psychology, University of Richmond, Richmond, VA, United States
| | - Rene Olivares-Navarrete
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Jennifer L. Puetzer
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Kelly Lambert
- Department of Psychology, University of Richmond, Richmond, VA, United States
- *Correspondence: Kelly Lambert,
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11
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Qin W, Zhang Z, Yan J, Han X, Niu LN, Jiao K. Interaction of Neurovascular Signals in the Degraded Condylar Cartilage. Front Bioeng Biotechnol 2022; 10:901749. [PMID: 35573252 PMCID: PMC9099211 DOI: 10.3389/fbioe.2022.901749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/01/2022] [Indexed: 12/04/2022] Open
Abstract
Introduction: Degradation of the condylar cartilage during temporomandibular joint osteoarthritis (TMJ-OA) results in the infiltration of nerves, blood vessels and inflammatory cells from the subchondral bone into the cartilage. The interaction among innervation, angiogenesis and inflammation in the condylar cartilage of TMJ-OA remains largely unknown. Method: In the present study, microarray-based transcriptome analysis was used to detect, and quantitative real-time polymerase chain reaction was used to validate transcriptome changes in the condylar cartilage from a well-established rat TMJ-OA model. Gene ontology (GO), Kyoto encyclopedia of genes and genomes (KEGG) pathway and protein-protein interaction (PPI) analyses were conducted. Result: There were 1817 differentially expressed genes (DEGs, fold change ≥2, p < 0.05) between TMJ-OA and control cartilages, with 553 up-regulated and 1,264 down-regulated genes. Among those genes, representative DEGs with known/suspected roles in innervation, angiogenesis and inflammation were further validated by enriched GO terms and KEGG pathways. The DEGs related to innervation were predominately enriched in the GO terms of neurogenesis, generation of neurons, and KEGG pathways of cholinergic synapse and neurotrophin signaling. Genes related to angiogenesis were enriched in GO terms of vasculature and blood vessel development, and KEGG pathways of hypoxia-inducible factor 1 (HIF-1) pathway and calcium signaling pathway. For inflammation, the DEGs were enriched in the GO terms of immune system process and immune response, and KEGG pathways of Toll-like receptor and transforming growth factor β (TGFβ) signaling. Analysis with PPI indicated that the aforementioned DEGs were highly-interacted. Several hub genes such as v-akt murine thymoma viral oncogene homolog 1 (Akt1), glycogen synthase kinase 3β (Gsk3b), fibroblast growth factor 2 (Fgf2) and nerve growth factor receptor (Ngfr) were validated. Conclusion: The present study demonstrated, for the first time, that intimate interactions exist among innervation, angiogenesis and inflammation in the condylar cartilage of TMJ-OA.
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Affiliation(s)
- Wenpin Qin
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’an, China
| | - Zibin Zhang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’an, China
| | - Jianfei Yan
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’an, China
| | - Xiaoxiao Han
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’an, China
- The College of Life Science, Northwest University, Xi’an, China
| | - Li-Na Niu
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’an, China
| | - Kai Jiao
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi’an, China
- *Correspondence: Kai Jiao,
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12
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Negri S, Samuel TJ, Lee S. The Potential Role of Exercise Training and Mechanical Loading on Bone-Associated Skeletal Nerves. J Bone Metab 2021; 28:267-277. [PMID: 34905674 PMCID: PMC8671028 DOI: 10.11005/jbm.2021.28.4.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 11/07/2021] [Indexed: 11/11/2022] Open
Abstract
The spatial distribution, innervation, and functional role of the bone-associated skeletal nerves have been previously reported in detail. However, studies examining exercise-induced associations between skeletal nerves and bone metabolism are limited. This review introduces a potential relationship between exercise and the skeletal nerves and discusses how it can contribute to exercise-induced bone anabolism. First, the background and current understanding of nerve fiber types and their functions in the skeleton are provided. Next, the influence of exercise and mechanical loading on the skeletal nervous system is elaborated. Effective synthesis of recent studies could serve as an established baseline for the novel discovery of the effects of exercise on skeletal nerve density and bone anabolic activity in the future. Therefore, this review overviews the existing evidence for the neural control of bone metabolism and the potential positive effects of exercise on the peripheral skeletal nervous system. The influence of exercise training models on the relationships of sensory nerve signals with osteoblast-mediated bone formation and the increased bone volume provides the first insight on the potential importance of exercise training in stimulating positive adaptations in the skeletal nerve-bone interaction and its downstream effect on bone metabolism, thereby highlighting its therapeutic potential in a variety of clinical populations.
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Affiliation(s)
- Stefano Negri
- Department of Orthopedics and Trauma Surgery, Department of Surgery, Dentistry, Pediatrics and Gynecology of the University of Verona, Verona, Italy
| | - T Jake Samuel
- Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Seungyong Lee
- Department of Physiology, College of Graduate Studies, Midwestern University Arizona College of Osteopathic Medicine, Glendale, AZ, USA
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13
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Li B, Guan G, Mei L, Jiao K, Li H. Pathological mechanism of chondrocytes and the surrounding environment during osteoarthritis of temporomandibular joint. J Cell Mol Med 2021; 25:4902-4911. [PMID: 33949768 PMCID: PMC8178251 DOI: 10.1111/jcmm.16514] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 03/01/2021] [Accepted: 03/22/2021] [Indexed: 12/11/2022] Open
Abstract
Temporomandibular joint (TMJ) osteoarthritis is a common chronic degenerative disease of the TMJ. In order to explore its aetiology and pathological mechanism, many animal models and cell models have been constructed to simulate the pathological process of TMJ osteoarthritis. The main pathological features of TMJ osteoarthritis include chondrocyte death, extracellular matrix (ECM) degradation and subchondral bone remodelling. Chondrocyte apoptosis accelerates the destruction of cartilage. However, autophagy has a protective effect on condylar chondrocytes. Degradation of ECM not only changes the properties of cartilage but also affects the phenotype of chondrocytes. The loss of subchondral bone in the early stages of TMJ osteoarthritis plays an aetiological role in the onset of osteoarthritis. In recent years, increasing evidence has suggested that chondrocyte hypertrophy and endochondral angiogenesis promote TMJ osteoarthritis. Hypertrophic chondrocytes secrete many factors that promote cartilage degeneration. These chondrocytes can further differentiate into osteoblasts and osteocytes and accelerate cartilage ossification. Intrachondral angiogenesis and neoneurogenesis are considered to be important triggers of arthralgia in TMJ osteoarthritis. Many molecular signalling pathways in endochondral osteogenesis are responsible for TMJ osteoarthritis. These latest discoveries in TMJ osteoarthritis have further enhanced the understanding of this disease and contributed to the development of molecular therapies. This paper summarizes recent cognition on the pathogenesis of TMJ osteoarthritis, focusing on the role of chondrocyte hypertrophy degeneration and cartilage angiogenesis.
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Affiliation(s)
- Baochao Li
- Department of Orthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Guangzhao Guan
- Department of Oral Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Li Mei
- Department of Oral Sciences, Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - Kai Jiao
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Huang Li
- Department of Orthodontics, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
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14
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Wan Q, Qin W, Ma Y, Shen M, Li J, Zhang Z, Chen J, Tay FR, Niu L, Jiao K. Crosstalk between Bone and Nerves within Bone. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2003390. [PMID: 33854888 PMCID: PMC8025013 DOI: 10.1002/advs.202003390] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/29/2020] [Indexed: 05/11/2023]
Abstract
For the past two decades, the function of intrabony nerves on bone has been a subject of intense research, while the function of bone on intrabony nerves is still hidden in the corner. In the present review, the possible crosstalk between bone and intrabony peripheral nerves will be comprehensively analyzed. Peripheral nerves participate in bone development and repair via a host of signals generated through the secretion of neurotransmitters, neuropeptides, axon guidance factors and neurotrophins, with additional contribution from nerve-resident cells. In return, bone contributes to this microenvironmental rendezvous by housing the nerves within its internal milieu to provide mechanical support and a protective shelf. A large ensemble of chemical, mechanical, and electrical cues works in harmony with bone marrow stromal cells in the regulation of intrabony nerves. The crosstalk between bone and nerves is not limited to the physiological state, but also involved in various bone diseases including osteoporosis, osteoarthritis, heterotopic ossification, psychological stress-related bone abnormalities, and bone related tumors. This crosstalk may be harnessed in the design of tissue engineering scaffolds for repair of bone defects or be targeted for treatment of diseases related to bone and peripheral nerves.
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Affiliation(s)
- Qian‐Qian Wan
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032China
| | - Wen‐Pin Qin
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032China
| | - Yu‐Xuan Ma
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032China
| | - Min‐Juan Shen
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032China
| | - Jing Li
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032China
| | - Zi‐Bin Zhang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032China
| | - Ji‐Hua Chen
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032China
| | - Franklin R. Tay
- College of Graduate StudiesAugusta UniversityAugustaGA30912USA
| | - Li‐Na Niu
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032China
| | - Kai Jiao
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of StomatologyDepartment of ProsthodonticsSchool of StomatologyThe Fourth Military Medical UniversityXi'anShaanxi710032China
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15
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Effects of Early Life Stress on Bone Homeostasis in Mice and Humans. Int J Mol Sci 2020; 21:ijms21186634. [PMID: 32927845 PMCID: PMC7556040 DOI: 10.3390/ijms21186634] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 08/27/2020] [Accepted: 09/05/2020] [Indexed: 11/16/2022] Open
Abstract
Bone pathology is frequent in stressed individuals. A comprehensive examination of mechanisms linking life stress, depression and disturbed bone homeostasis is missing. In this translational study, mice exposed to early life stress (MSUS) were examined for bone microarchitecture (μCT), metabolism (qPCR/ELISA), and neuronal stress mediator expression (qPCR) and compared with a sample of depressive patients with or without early life stress by analyzing bone mineral density (BMD) (DXA) and metabolic changes in serum (osteocalcin, PINP, CTX-I). MSUS mice showed a significant decrease in NGF, NPYR1, VIPR1 and TACR1 expression, higher innervation density in bone, and increased serum levels of CTX-I, suggesting a milieu in favor of catabolic bone turnover. MSUS mice had a significantly lower body weight compared to control mice, and this caused minor effects on bone microarchitecture. Depressive patients with experiences of childhood neglect also showed a catabolic pattern. A significant reduction in BMD was observed in depressive patients with childhood abuse and stressful life events during childhood. Therefore, future studies on prevention and treatment strategies for both mental and bone disease should consider early life stress as a risk factor for bone pathologies.
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16
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Sun JL, Yan JF, Yu SB, Zhao J, Lin QQ, Jiao K. MicroRNA-29b Promotes Subchondral Bone Loss in TMJ Osteoarthritis. J Dent Res 2020; 99:1469-1477. [PMID: 32693649 DOI: 10.1177/0022034520937617] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Abnormal subchondral bone remodeling plays important roles during osteoarthritis (OA) pathology. Recent studies show that bone marrow mesenchymal stem cells (BMSCs) in osteoarthritic subchondral bones exhibit a prominent pro-osteoclastic effect that contributes to abnormal subchondral bone remodeling; however, the pathologic mechanism remains unclear. In the present study, we used a mouse model with OA-like change in the temporomandibular joint (TMJ) induced by an experimentally unilateral anterior crossbite (UAC) and found that the level of microRNA-29b (miR-29b), but not miR-29a or miR-29c, was markedly lower in BMSCs from subchondral bones of UAC mice as compared with that from the sham control mice. With an intra-articular aptamer delivery system, BMSC-specific overexpression of miR-29b by aptamer-agomiR-29b rescued subchondral bone loss and osteoclast hyperfunction in UAC mice, as demonstrated by a significant increase in bone mineral density, bone volume fraction, trabecular thickness, and the gene expression of osteocalcin and Runx2 but decreased trabecular separation, osteoclast number and osteoclast surface/bone surface, and the gene expression of cathepsin K, Trap, Wnt5a, Rankl, and Rank as compared with those in the UAC mice treated by aptamer-NC (all P < 0.05). In addition, BMSC-specific inhibition of miR-29b by aptamer-antagomiR-29b exacerbated those responses in UAC mice. Notably, although it primarily affected miR-29b levels in the subchondral bone (but not in cartilage and synovium), BMSC-specific overexpression of miR-29b in UAC mice largely rescued OA-like cartilage degradation, including decreased chondrocyte density, cartilage thickness, and the percentage areas of proteoglycans and type II collagen, while BMSC-specific inhibition of miR-29b aggravated these characteristics of cartilage degradation in UAC mice. Moreover, we identified Wnt5a, but not Rankl or Sdf-1, as the direct target of miR-29b. The results of the present study indicate that miR-29b is a key regulator of the pro-osteoclastic effects of BMSCs in TMJ-OA subchondral bones and plays important roles in the TMJ-OA progression.
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Affiliation(s)
- J L Sun
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, China.,Department of Stomatology, Sixth Medical Center of PLA General Hospital, Beijing, China
| | - J F Yan
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - S B Yu
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - J Zhao
- Department of Stomatology, Sixth Medical Center of PLA General Hospital, Beijing, China
| | - Q Q Lin
- Department of Stomatology, Sixth Medical Center of PLA General Hospital, Beijing, China
| | - K Jiao
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
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17
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Sun JL, Yan JF, Li J, Wang WR, Yu SB, Zhang HY, Huang F, Niu LN, Jiao K. Conditional deletion of Adrb2 in mesenchymal stem cells attenuates osteoarthritis-like defects in temporomandibular joint. Bone 2020; 133:115229. [PMID: 31926929 DOI: 10.1016/j.bone.2020.115229] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/31/2019] [Accepted: 01/08/2020] [Indexed: 01/07/2023]
Abstract
β2-adrenergic signal transduction in mesenchymal stem cells (MSCs) induces subchondral bone loss in osteoarthritis (OA) of temporomandibular joints (TMJs). However, whether conditional deletion of β2-adrenergic receptor (Adrb2) in nestin+ MSCs can alleviate TMJ-OA development remains unknown. In this study, nestin-Cre mice were crossed with Adrb2 flox mice to generate mice lacking Adrb2 expression specifically in the nestin+ MSCs (Adrb2-/-), and TMJ-OA development in such mice was investigated. Adrb2 flox mice (Adrb2+/+) and Adrb2-/- mice were subjected to unilateral anterior crossbite (UAC), while mice in the control group were subjected to sham operation. Adrb2+/+ and Adrb2-/- mice in the control group showed no distinguishable phenotypic changes in body weight and length, mandibular condylar size, and other histomorphological parameters of the condylar subchondral bone. A significant increase in subchondral bone loss and cartilage degradation was observed in Adrb2+/+ UAC mice; the former was characterized by decreased bone mineral density, bone volume fraction, and trabecular plate thickness, and increased trabecular separation, osteoclast number and osteoclast surface, and pro-osteoclastic factor expression; the latter was characterized by decreased cartilage thickness, chondrocyte density, proteoglycan area, and collagen II and aggrecan expression, but increased matrix metalloproteinase and alkaline phosphatase expression and percentage area of calcified cartilage. Adrb2 deletion in nestin+ MSCs largely attenuated UAC-induced increase in condylar subchondral bone loss, cartilage degradation, and aberrant calcification at the osteochondral interface. Thus, Adrb2-expressing MSCs in the condylar subchondral bone play an important role in TMJ-OA progression and may serve as novel therapeutic targets for TMJ-OA.
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Affiliation(s)
- Jin-Long Sun
- State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China.; Department of Stomatology, Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Jian-Fei Yan
- State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Jing Li
- State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Wan-Rong Wang
- State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Shi-Bin Yu
- State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Hong-Yun Zhang
- State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China
| | - Fei Huang
- Department of Stomatology, Sixth Medical Center of PLA General Hospital, Beijing 100048, China
| | - Li-Na Niu
- State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China..
| | - Kai Jiao
- State Key Laboratory of Military Stomatology, School of Stomatology, Fourth Military Medical University, Xi'an 710032, China..
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18
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Yang H, Zhang M, Liu Q, Zhang H, Zhang J, Lu L, Xie M, Chen D, Wang M. Inhibition of Ihh Reverses Temporomandibular Joint Osteoarthritis via a PTH1R Signaling Dependent Mechanism. Int J Mol Sci 2019; 20:ijms20153797. [PMID: 31382618 PMCID: PMC6695690 DOI: 10.3390/ijms20153797] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 07/29/2019] [Accepted: 07/30/2019] [Indexed: 02/07/2023] Open
Abstract
The temporomandibular joint (TMJ), which is biomechanically related to dental occlusion, is often insulted by osteoarthritis (OA). This study was conducted to clarify the relationship between Indian hedgehog (Ihh) and parathyroid hormone receptor 1 (PTH1R) signaling in modulating the enhanced chondrocyte terminal differentiation in dental stimulated TMJ osteoarthritic cartilage. A gain- and loss-of-function strategy was used in an in vitro model in which fluid flow shear stress (FFSS) was applied, and in an in vivo model in which the unilateral anterior cross-bite (UAC) stimulation was adopted. Ihh and PTH1R signaling was modulated through treating the isolated chondrocytes with inhibitor/activator and via deleting Smoothened (Smo) and/or Pth1r genes in mice with the promoter gene of type 2 collagen (Col2-CreER) in the tamoxifen-inducible pattern. We found that both FFSS and UAC stimulation promoted the deep zone chondrocytes to undergo terminal differentiation, while cells in the superficial zone were robust. We demonstrated that the terminal differentiation process in deep zone chondrocytes promoted by FFSS and UAC was mediated by the enhanced Ihh signaling and declined PTH1R expression. The FFSS-promoted terminal differentiation was suppressed by administration of the Ihh inhibitor or PTH1R activator. The UAC-promoted chondrocytes terminal differentiation and OA-like lesions were rescued in Smo knockout, but were enhanced in Pth1r knockout mice. Importantly, the relieving effect of Smo knockout mice was attenuated when Pth1r knockout was also applied. Our data suggest a chondrocyte protective effect of suppressing Ihh signaling in TMJ OA cartilage which is dependent on PTH1R signaling.
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Affiliation(s)
- Hongxu Yang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an 710032, China
| | - Mian Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an 710032, China
| | - Qian Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an 710032, China
| | - Hongyun Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an 710032, China
| | - Jing Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an 710032, China
| | - Lei Lu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an 710032, China
| | - Mianjiao Xie
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an 710032, China
| | - Di Chen
- Department of Biochemistry, Rush University Medical Center, Chicago, IL 60612, USA.
| | - Meiqing Wang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, the Fourth Military Medical University, Xi'an 710032, China.
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19
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Zhang HY, Liu Q, Yang HX, Shi LQ, Wang P, Xie MJ, Liu JQ, Xu XJ, Liu XD, Yu SB, Jiao K, Zhang M, Xuan SJ, Xu YF, Zhang X, Liu YF, Zhang J, Wang MQ. Early growth response 1 reduction in peripheral blood involving condylar subchondral bone loss. Oral Dis 2019; 25:1759-1768. [PMID: 31357246 DOI: 10.1111/odi.13168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/29/2019] [Accepted: 07/22/2019] [Indexed: 12/24/2022]
Abstract
OBJECTIVES To detect whether early growth response 1 (EGR1) in peripheral blood leucocytes (PBLs) indicates temporomandibular joint (TMJ) osteoarthritis (OA) lesions. MATERIALS AND METHODS Egr1 mRNA expression levels in PBLs were detected in eight malocclusion patients without temporomandibular disorder (TMD) signs and 16 malocclusion patients with clinical TMD signs with (eight) or without (eight) imaging signs of TMJ OA. Twelve 6-week-old rats were randomized to a control group and a unilateral anterior crossbite (UAC) group and were sampled at 4 weeks. The Egr1 mRNA expression levels in PBLs and protein expression levels in different orofacial tissues were measured. RESULTS Patients with TMD signs with/without TMJ OA diagnosis showed lower Egr1 mRNA expression levels in PBLs than patients without TMD signs. The lower Egr1 mRNA expression was also found in the PBLs of UAC rats, which were induced to exhibit early histo-morphological signs of TMJ OA lesions. In subchondral bone of UAC rats, EGR1 protein expression was decreased, co-localization of EGR1 with osterix or dentin matrix protein-1 was identified, and the number of EGR1 and osterix double-positive cells was reduced (all p < .05). CONCLUSION Egr1 reduction in PBLs potentially indicates subchondral bone OA lesions at an early stage.
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Affiliation(s)
- Hong-Yun Zhang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Qian Liu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Hong-Xu Yang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Li-Qiang Shi
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Radiology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Pei Wang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Radiology, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Mian-Jiao Xie
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Jin-Qiang Liu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Xiao-Jie Xu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Xiao-Dong Liu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Shi-Bin Yu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Kai Jiao
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Mian Zhang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Shi-Jie Xuan
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Yi-Fei Xu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Xuan Zhang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Yi-Fan Liu
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Jing Zhang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
| | - Mei-Qing Wang
- State Key Laboratory of Military Stomatology, National Clinical Research Center for Oral Diseases, Shaanxi International Joint Research Center for Oral Diseases, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, The Fourth Military Medical University, Xi'an, China
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20
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Qiao Y, Wang Y, Zhou Y, Jiang F, Huang T, Chen L, Lan J, Yang C, Guo Y, Yan S, Wei Z, Li J. The role of nervous system in adaptive response of bone to mechanical loading. J Cell Physiol 2018; 234:7771-7780. [PMID: 30414185 DOI: 10.1002/jcp.27683] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 10/09/2018] [Indexed: 02/05/2023]
Abstract
Bone tissue is remodeled through the catabolic function of the osteoclasts and the anabolic function of the osteoblasts. The process of bone homeostasis and metabolism has been identified to be co-ordinated with several local and systemic factors, of which mechanical stimulation acts as an important regulator. Very recent studies have shown a mutual effect between bone and other organs, which means bone influences the activity of other organs and is also influenced by other organs and systems of the body, especially the nervous system. With the discovery of neuropeptide (calcitonin gene-related peptide, vasoactive intestinal peptide, substance P, and neuropeptide Y) and neurotransmitter in bone and the adrenergic receptor observed in osteoclasts and osteoblasts, the function of peripheral nervous system including sympathetic and sensor nerves in bone resorption and its reaction to on osteoclasts and osteoblasts under mechanical stimulus cannot be ignored. Taken together, bone tissue is not only the mechanical transmitter, but as well the receptor of neural system under mechanical loading. This review aims to summarize the relationship among bone, nervous system, and mechanotransduction.
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Affiliation(s)
- Yini Qiao
- Department of Orthodontics, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
| | - Yang Wang
- Department of Oral Radiology, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
| | - Yimei Zhou
- Department of Orthodontics, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
| | - Fulin Jiang
- Department of Orthodontics, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
| | - Tu Huang
- Department of Orthodontics, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
| | - Liujing Chen
- Department of Orthodontics, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
| | - Jingxiang Lan
- Department of Orthodontics, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
| | - Cai Yang
- Department of Orthodontics, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
| | - Yutong Guo
- Department of Orthodontics, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
| | - Shanyu Yan
- Department of Orthodontics, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
| | - Zhangming Wei
- Department of Orthodontics, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
| | - Juan Li
- Department of Orthodontics, West China Hospital of Stomatology, West China School of Stomatology Sichuan University, State Key Laboratory of Oral Diseases, Chengdu, China
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21
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Wippert PM, Wiebking C. Stress and Alterations in the Pain Matrix: A Biopsychosocial Perspective on Back Pain and Its Prevention and Treatment. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:E785. [PMID: 29670003 PMCID: PMC5923827 DOI: 10.3390/ijerph15040785] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 04/02/2018] [Accepted: 04/09/2018] [Indexed: 12/18/2022]
Abstract
The genesis of chronic pain is explained by a biopsychosocial model. It hypothesizes an interdependency between environmental and genetic factors provoking aberrant long-term changes in biological and psychological regulatory systems. Physiological effects of psychological and physical stressors may play a crucial role in these maladaptive processes. Specifically, long-term demands on the stress response system may moderate central pain processing and influence descending serotonergic and noradrenergic signals from the brainstem, regulating nociceptive processing at the spinal level. However, the underlying mechanisms of this pathophysiological interplay still remain unclear. This paper aims to shed light on possible pathways between physical (exercise) and psychological stress and the potential neurobiological consequences in the genesis and treatment of chronic pain, highlighting evolving concepts and promising research directions in the treatment of chronic pain. Two treatment forms (exercise and mindfulness-based stress reduction as exemplary therapies), their interaction, and the dose-response will be discussed in more detail, which might pave the way to a better understanding of alterations in the pain matrix and help to develop future prevention and therapeutic concepts.
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Affiliation(s)
- Pia-Maria Wippert
- Sociology of Health and Physical Activity, Department of Health Science, University of Potsdam, Am Neuen Palais 10, House 12, 14469 Potsdam, Germany.
- Department of Health Sciences and Technology, ETH Zürich, HCP, Leopold-Ruzicka-Weg 4, CH-8093 Zürich, Switzerland.
| | - Christine Wiebking
- Sociology of Health and Physical Activity, Department of Health Science, University of Potsdam, Am Neuen Palais 10, House 12, 14469 Potsdam, Germany.
- Institute of Psychology and Education, Applied Emotion and Motivation Research, Ulm University, 89081 Ulm, Germany.
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22
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Wippert PM, Wiebking C. [Adaptation to physical activity and mental stress in the context of pain : Psychobiological aspects]. Schmerz 2017; 30:429-436. [PMID: 27492492 DOI: 10.1007/s00482-016-0147-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The genesis of chronic pain is predominantly explained by a multidimensional pain model approach that is based on the dysfunctional influence of biological, psychological and social variables as key risk factors inducing aberrant long-term changes. Biological facets comprise adaptation processes on the neuronal, musculoskeletal and (psycho) biological level that can be influenced by physical training or psychosocial factors, such as stress. These factors can play a causative role in developing dysfunctional adaptation mechanisms, which in turn prepare the biological ground to facilitate negative long-term changes in the peripheral and central nervous systems. Hence, these processes can be assumed to be fundamentally involved in the transition from acute to chronic and persistent pain. The aim of this review article is to discuss hypotheses for the genesis of chronic pain and possible treatment strategies. Selected research results about maladaptive processes in chronic pain due to psychological stress and physical activity are presented in order to inspire discussions about the ideal dose-response relationship of physical activity and the combination of different therapeutic concepts.
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Affiliation(s)
- P-M Wippert
- Sport- und Gesundheitssoziologie, Universität Potsdam, Am Neuen Palais 10, Haus 12, 14169, Potsdam, Deutschland.
| | - C Wiebking
- Sport- und Gesundheitssoziologie, Universität Potsdam, Am Neuen Palais 10, Haus 12, 14169, Potsdam, Deutschland.,Institut für Psychologie und Pädagogik, Angewandte Emotions- und Motivationspsychologie, Universität Ulm, Ulm, Deutschland
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23
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Hughes JM, Charkoudian N, Barnes JN, Morgan BJ. Revisiting the Debate: Does Exercise Build Strong Bones in the Mature and Senescent Skeleton? Front Physiol 2016; 7:369. [PMID: 27679578 PMCID: PMC5020082 DOI: 10.3389/fphys.2016.00369] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 08/10/2016] [Indexed: 12/18/2022] Open
Abstract
Traditional exercise programs seem to be less osteogenic in the mature and post-mature skeleton compared to the young skeleton. This is likely because of the decline in sensitivity of bone to mechanical loading that occurs with advancing age. Another factor contributing to the apparently diminished benefit of exercise in older adults is failure of widely used measurement techniques (i.e., DXA) to identify changes in 3-dimensional bone structure, which are important determinants of bone strength. Moreover, although hormonal contributors to bone loss in the elderly are well-recognized, the influence of age-related increases in sympathetic nervous system activity, which impacts bone metabolism, is rarely considered. In this Perspective, we cite evidence from animal and human studies demonstrating anabolic effects of exercise on bone across the lifespan and we discuss theoretical considerations for designing exercise regimens to optimize bone health. We conclude with suggestions for future research that should help define the osteogenic potential of exercise in older individuals.
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Affiliation(s)
- Julie M Hughes
- Military Performance Division, US Army Research Institute of Environmental Medicine Natick, MA, USA
| | - Nisha Charkoudian
- Thermal and Mountain Medicine Division, US Army Research Institute of Environmental Medicine Natick, MA, USA
| | - Jill N Barnes
- Bruno Balke Biodynamics Laboratory, Department of Kinesiology, University of Wisconsin-Madison Madison, WI, USA
| | - Barbara J Morgan
- John Rankin Laboratory of Pulmonary Medicine, Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison Madison, WI, USA
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24
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Jiao K, Zeng G, Niu LN, Yang HX, Ren GT, Xu XY, Li FF, Tay FR, Wang MQ. Activation of α2A-adrenergic signal transduction in chondrocytes promotes degenerative remodelling of temporomandibular joint. Sci Rep 2016; 6:30085. [PMID: 27452863 PMCID: PMC4958971 DOI: 10.1038/srep30085] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 06/28/2016] [Indexed: 12/29/2022] Open
Abstract
This study tested whether activation of adrenoreceptors in chondrocytes has roles in degenerative remodelling of temporomandibular joint (TMJ) and to determine associated mechanisms. Unilateral anterior crossbite (UAC) was established to induce TMJ degeneration in rats. Saline vehicle, α2- and β-adrenoreceptor antagonists or agonists were injected locally into the TMJ area of UAC rats. Cartilage degeneration, subchondral bone microarchitecture and the expression of adrenoreceptors, aggrecans, matrix metalloproteinases (MMPs) and RANKL by chondrocytes were evaluated. Chondrocytes were stimulated by norepinephrine to investigate signal transduction of adrenoreceptors. Increased α2A-adrenoreceptor expression was observed in condylar cartilage of UAC rats, together with cartilage degeneration and subchondral bone loss. Norepinephrine depresses aggrecans expression but stimulates MMP-3, MMP-13 and RANKL production by chondrocytes through ERK1/2 and PKA pathway; these effects were abolished by an α2A-adrenoreceptor antagonist. Furthermore, inhibition of α2A-adrenoreceptor attenuated degenerative remodelling in the condylar cartilage and subchondral bone, as revealed by increased cartilage thickness, proteoglycans and aggrecan expression, and decreased MMP-3, MMP-13 and RANKL expressions in cartilage, increased BMD, BV/TV, and decreased Tb.Sp in subchondral bone. Conversely, activation of α2A-adrenoreceptor intensified aforementioned degenerative changes in UAC rats. It is concluded that activation of α2A-adrenergic signal in chondrocytes promotes TMJ degenerative remodelling by chondrocyte-mediated pro-catabolic activities.
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Affiliation(s)
- Kai Jiao
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, 145 Changle Western Road, Xi'an, 710032, China
| | - Guang Zeng
- Department of Dentistry, Tangdu Hospital, Forth Military Medical University, Shannxi, Xi'an, 710038, China
| | - Li-Na Niu
- State Key Laboratory of Military Stomatology, Department of Prosthodontics, School of Stomatology, Fourth Military Medical University, Changle Western Road No.145, Xi'an, 710032, China
| | - Hong-Xu Yang
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, 145 Changle Western Road, Xi'an, 710032, China
| | - Gao-Tong Ren
- Undergraduate Department of Oral Science, Fourth Military Medical University, Changle Western Road No.145, Xi'an, 710032, China
| | - Xin-Yue Xu
- Undergraduate Department of Oral Science, Fourth Military Medical University, Changle Western Road No.145, Xi'an, 710032, China
| | - Fei-Fei Li
- State Key Laboratory of Military Stomatology, Department of Orthodontics, School of Stomatology, Fourth Military Medical University, 145 Changle Western Road, Xi'an, 710032, China
| | - Franklin R Tay
- The Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - Mei-Qing Wang
- State Key Laboratory of Military Stomatology, Department of Oral Anatomy and Physiology and TMD, School of Stomatology, Fourth Military Medical University, 145 Changle Western Road, Xi'an, 710032, China
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