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Guo B, Zhu Y, Lu S, Chen X, Ren Z, Liu Y, Luo H, Wang C, Yang X, Zhu J. Targeting MCH Neuroendocrine Circuit in Lateral Hypothalamus to Protect Against Skeletal Senescence. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2309951. [PMID: 39320347 DOI: 10.1002/advs.202309951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 08/28/2024] [Indexed: 09/26/2024]
Abstract
Neuroendocrine regulation is essential for maintaining metabolic homeostasis. However, whether neuroendocrine pathway influence bone metabolism and skeletal senescence is unelucidated. Here, a central neuroendocrine circuit is identified that directly controls osteogenesis. Using virus based tracing, this study is identified that melanin concentrating hormone (MCH) expressing neurons in the lateral hypothalamus (LH) are connected to the bone. Chemogenetic activation of MCH neurons in the LH induces osteogenesis, whereas inhibiting these neurons reduces osteogenesis. Meanwhile, MCH is released into the circulation upon chemogenetic activation of these neurons. Single cell sequencing reveals that blocking MCH neurons in the LH diminishes osteogenic differentiation of bone marrow stromal cells (BMSCs) and induces senescence. Mechanistically, MCH promotes BMSC differentiation by activating MCHR1 via PKA signaling, and activating MCHR1 by MCH agonists attenuate skeletal senescence in mice. By elucidating a brain-bone connection that autonomously enhances osteogenesis, these findings uncover the neuroendocrinological mechanisms governing bone mass regulation and protect against skeletal senescence.
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Affiliation(s)
- Bin Guo
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Yong Zhu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Shuai Lu
- Department of Orthopedic Trauma, Beijing Jishuitan Hospital, Capital Medical University, Beijing, 100035, China
- Beijing Research Institute of Traumatology and Orthopaedics, Beijing, 100035, China
| | - Xiangming Chen
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Zhuoqun Ren
- Xiangya School of Medicine, Central South University, Changsha, 410008, China
| | - Yuqi Liu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Hao Luo
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Chao Wang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Xucheng Yang
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Jianxi Zhu
- Department of Orthopaedics, Xiangya Hospital, Central South University, Changsha, 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Hunan, 410008, China
- Hunan Key Laboratory of Aging Biology, Xiangya Hospital, Central South University, Hunan, 410008, China
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Wang T, Ye J, Zhang Y, Li J, Yang T, Wang Y, Jiang X, Yao Q. Role of oxytocin in bone. Front Endocrinol (Lausanne) 2024; 15:1450007. [PMID: 39290327 PMCID: PMC11405241 DOI: 10.3389/fendo.2024.1450007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Accepted: 08/16/2024] [Indexed: 09/19/2024] Open
Abstract
Oxytocin (OT) is a posterior pituitary hormone that, in addition to its role in regulating childbirth and lactation, also exerts direct regulatory effects on the skeleton through peripheral OT and oxytocin receptor (OTR). Bone marrow mesenchymal stem cells (BMSCs), osteoblasts (OB), osteoclasts (OC), chondrocytes, and adipocytes all express OT and OTR. OT upregulates RUNX2, BMP2, ALP, and OCN, thereby enhancing the activity of BMSCs and promoting their differentiation towards OB rather than adipocytes. OT also directly regulates OPG/RANKL to inhibit adipocyte generation, increase the expression of SOX9 and COMP, and enhance chondrocyte differentiation. OB can secrete OT, exerting influence on the surrounding environment through autocrine and paracrine mechanisms. OT directly increases OC formation through the NκB/MAP kinase signaling pathway, inhibits osteoclast proliferation by triggering cytoplasmic Ca2+ release and nitric oxide synthesis, and has a dual regulatory effect on OCs. Under the stimulation of estrogen, OB synthesizes OT, amplifying the biological effects of estrogen and OT. Mediated by estrogen, the OT/OTR forms a feedforward loop with OB. Apart from estrogen, OT also interacts with arginine vasopressin (AVP), prostaglandins (PGE2), leptin, and adiponectin to regulate bone metabolism. This review summarizes recent research on the regulation of bone metabolism by OT and OTR, aiming to provide insights into their clinical applications and further research.
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Affiliation(s)
- Tianming Wang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jianya Ye
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
- Department of Orthopedic Surgery, Huaian Hospital of Huaian City, Huaian, China
| | - Yongqiang Zhang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Jiayi Li
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Tianxiao Yang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Yufeng Wang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Xiao Jiang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Qingqiang Yao
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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Deng J, Joshua Cohen D, Matias EB, Olson LO, McClure MJ, Boyan BD, Schwartz Z. Reduced osseointegration in disuse and denervation rat models results from impaired cellular responses to multiscale microstructured titanium surfaces. J Orthop Res 2024; 42:1984-1997. [PMID: 38644051 DOI: 10.1002/jor.25843] [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: 05/11/2023] [Revised: 12/15/2023] [Accepted: 03/11/2024] [Indexed: 04/23/2024]
Abstract
Immobilization-induced skeletal unloading results in muscle atrophy and rapid bone loss, thereby increasing the risk of falling and the need for implant therapy in patients with extended bed rest or neuromuscular injuries. Skeletal unloading causes bone loss by altering bone growth and resorption, suggesting that implant performance might be affected. To test this, we focused on early events in implant osseointegration. We used the rat sciatic neurectomy-induced disuse model under two different settings. In Study 1, 16 Sprague Dawley rats (SD) were separated into control, sham operated+cast immobilization, and sciatic neurectomy+casting groups; titanium implants with multiscale microtextured topography and hydrophilic chemistry (modSLA) were inserted in the distal femoral metaphysis. Neurectomy surgeries and casting were performed at the same surgical setting as implant placement; rats were euthanized 4 weeks post-implantation. In Study 2, we established the unloaded condition before implantation. A total of 12 SD rats were divided into control and sciatic+femoral neurectomy groups. A total of 24 days after sciatic and femoral neurectomy surgery, rats received implants. Study 2 rats were euthanized at 4 weeks post-implantation. MicroCT and histomorphometry showed that trabecular bone and osseointegration were reduced when disuse was established before implantation. Osteoblasts isolated from Study 1 sciatic neurectomy tibial bones exhibited impaired differentiation on modSLA culture disks, revealing a possible mechanism responsible for the decreased osseointegration observed in the Study 2 rats. This study addressed the importance of considering the mechanical unloading and muscle function history before implant insertion and suggests that implant performance was reduced due to poor cellular ability to regenerate.
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Affiliation(s)
- Jingyao Deng
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
| | - David Joshua Cohen
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Enrique B Matias
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Lucas O Olson
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Michael J McClure
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Barbara D Boyan
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia, USA
| | - Zvi Schwartz
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, Virginia, USA
- Department of Periodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
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Xu M, Zhu M, Qin Q, Xing X, Archer M, Ramesh S, Cherief M, Li Z, Levi B, Clemens TL, James AW. Neuronal regulation of bone and tendon injury repair: a focused review. J Bone Miner Res 2024; 39:1045-1060. [PMID: 38836494 DOI: 10.1093/jbmr/zjae087] [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: 01/04/2024] [Revised: 05/20/2024] [Accepted: 06/04/2024] [Indexed: 06/06/2024]
Abstract
Beyond the sensation of pain, peripheral nerves have been shown to play crucial roles in tissue regeneration and repair. As a highly innervated organ, bone can recover from injury without scar formation, making it an interesting model in which to study the role of nerves in tissue regeneration. As a comparison, tendon is a musculoskeletal tissue that is hypo-innervated, with repair often resulting in scar formation. Here, we reviewed the significance of innervation in 3 stages of injury repair (inflammatory, reparative, and remodeling) in 2 commonly injured musculoskeletal tissues: bone and tendon. Based on this focused review, we conclude that peripheral innervation is essential for phases of proper bone and tendon repair, and that nerves may dynamically regulate the repair process through interactions with the injury microenvironment via a variety of neuropeptides or neurotransmitters. A deeper understanding of neuronal regulation of musculoskeletal repair, and the crosstalk between nerves and the musculoskeletal system, will enable the development of future therapies for tissue healing.
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Affiliation(s)
- Mingxin Xu
- Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Manyu Zhu
- Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Qizhi Qin
- Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Xin Xing
- Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Mary Archer
- Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Sowmya Ramesh
- Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Masnsen Cherief
- Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Zhao Li
- Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States
| | - Benjamin Levi
- Department of Surgery, University of Texas Southwestern, Dallas, TX 75390, United States
| | - Thomas L Clemens
- Department of Orthopaedics, University of Maryland, Baltimore, MD 21205, United States
- Department of Research Services, Baltimore Veterans Administration Medical Center, Baltimore, MD 21201, United States
| | - Aaron W James
- Department of Pathology, Johns Hopkins University, Baltimore, MD 21205, United States
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5
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Kumar S, Song K, Wang J, Baghel MS, Wong P, Cao X, Wan M. Serum Amyloid P Secreted by Bone Marrow Adipocytes Drives Skeletal Amyloidosis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.15.608092. [PMID: 39211279 PMCID: PMC11361041 DOI: 10.1101/2024.08.15.608092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
The accumulation of amyloid fibrils has been identified in tissues outside the brain, yet little is understood about the formation of extracerebral amyloidosis and its impact on the aging process of these organs. Here, we demonstrate that both transgenic mice modeling Alzheimer's disease (AD) and naturally aging mice exhibit accumulated senescent bone marrow adipocytes (BMAds), accompanied by amyloid deposits surrounding the BMAds. Senescent BMAds acquire a secretory phenotype, resulting in a marked increase in the secretion of serum amyloid P component (SAP), also known as pentraxin 2 (PTX2). SAP/PTX2 colocalizes with amyloid deposits around senescent BMAds in vivo and is sufficient to promote the formation of insoluble amyloid deposits from soluble Aβ peptides in in vitro and ex vivo 3D BMAd-based culture experiments. Additionally, Combined treatment with SAP/PTX2 and Aβ peptides promotes osteoclastogenesis but inhibits osteoblastogenesis of the precursor cells. Transplantation of senescent BMAds into the bone marrow cavity of healthy young mice is sufficient to induce bone loss. Finally, pharmacological depletion of SAP/PTX2 from aged mice abolishes bone marrow amyloid deposition and effectively rescues the low bone mass phenotype. Thus, senescent BMAds, through the secretion of SAP/PTX2, contribute to the age-associated development of skeletal amyloidosis and resultant bone deficits.
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6
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Gerhardt T, Huynh P, McAlpine CS. Neuroimmune circuits in the plaque and bone marrow regulate atherosclerosis. Cardiovasc Res 2024:cvae167. [PMID: 39086175 DOI: 10.1093/cvr/cvae167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 05/02/2024] [Accepted: 06/01/2024] [Indexed: 08/02/2024] Open
Abstract
Atherosclerosis remains the leading cause of death globally. Although its focal pathology is atheroma that develops in arterial walls, atherosclerosis is a systemic disease involving contributions by many organs and tissues. It is now established that the immune system causally contributes to all phases of atherosclerosis. Recent and emerging evidence positions the nervous system as a key modulator of inflammatory processes that underly atherosclerosis. This neuro-immune crosstalk, we are learning, is bidirectional, and immune regulated afferent signaling is becoming increasingly recognized in atherosclerosis. Here, we summarize data and concepts that link the immune and nervous systems in atherosclerosis by focusing on two important sites, the arterial vessel and the bone marrow.
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Affiliation(s)
- Teresa Gerhardt
- Cardiovascular Research Institute and the Department of Medicine, Cardiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute and the Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Marc and Jennifer Lipschultz Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friede Springer Center for Cardiovascular Prevention at Charité, Berlin, Germany
| | - Pacific Huynh
- Cardiovascular Research Institute and the Department of Medicine, Cardiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute and the Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Marc and Jennifer Lipschultz Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Cameron S McAlpine
- Cardiovascular Research Institute and the Department of Medicine, Cardiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Friedman Brain Institute and the Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Marc and Jennifer Lipschultz Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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7
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Chen Y, Guo B, Ma G, Cao H. Sensory nerve regulation of bone homeostasis: Emerging therapeutic opportunities for bone-related diseases. Ageing Res Rev 2024; 99:102372. [PMID: 38880342 DOI: 10.1016/j.arr.2024.102372] [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: 04/01/2024] [Revised: 06/03/2024] [Accepted: 06/04/2024] [Indexed: 06/18/2024]
Abstract
Understanding the intricate interplay between sensory nerves and bone tissue cells is of paramount significance in the field of bone biology and clinical medicine. The regulatory role of sensory nerves in bone homeostasis offers a novel perspective for the development of targeted therapeutic interventions for a spectrum of bone-related diseases, including osteoarthritis, osteoporosis, and intervertebral disc degeneration. By elucidating the mechanisms through which sensory nerves and their neuropeptides influence the differentiation and function of bone tissue cells, this review aims to shed light on emerging therapeutic targets that harness the neuro-skeletal axis for the treatment and management of debilitating bone disorders. Moreover, a comprehensive understanding of sensory nerve-mediated bone regulation may pave the way for the development of innovative strategies to promote bone health and mitigate the burden of skeletal pathologies in clinical practice.
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Affiliation(s)
- Yong Chen
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Key University Laboratory of Metabolism and Health of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China
| | - Botao Guo
- The First Hospital of Qinhuangdao, Qinhuangdao, Hebei 066000, China
| | - Guixing Ma
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Key University Laboratory of Metabolism and Health of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Huiling Cao
- Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Key University Laboratory of Metabolism and Health of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China.
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8
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Niu H, Zhou M, Xu X, Xu X. Bone Marrow Adipose Tissue as a Critical Regulator of Postmenopausal Osteoporosis - A Concise Review. Clin Interv Aging 2024; 19:1259-1272. [PMID: 39011312 PMCID: PMC11249116 DOI: 10.2147/cia.s466446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 06/27/2024] [Indexed: 07/17/2024] Open
Abstract
Postmenopausal osteoporosis (PMOP) is a major health problem affecting millions of women worldwide. PMOP patients are often accompanied by abnormal accumulation of bone marrow adipose tissue (BMAT). BMAT is a critical regulator of bone homeostasis, and an increasing BMAT volume is negatively associated with bone mass reduction or fracture. BMAT regulates bone metabolism via adipokines, cytokines and the immune system, but the specific mechanisms are largely unknown. This review emphasizes the impact of estrogen deficiency on bone homeostasis and BMAT expansion, and the mechanism by which BMAT regulates PMOP, providing a promising strategy for targeting BMAT in preventing and treating PMOP.
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Affiliation(s)
- Huifang Niu
- Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), Hubei Key Laboratory of Fruit Vegetable Processing Quality Control (Huazhong Agricultural University), School of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Minfeng Zhou
- Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Xiaoyun Xu
- Key Laboratory of Environment Correlative Dietology (Ministry of Education), Hubei Key Laboratory of Fruit Vegetable Processing Quality Control (Huazhong Agricultural University), School of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei, People's Republic of China
| | - Xiaojuan Xu
- Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
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Carpenter RS, Maryanovich M. Systemic and local regulation of hematopoietic homeostasis in health and disease. NATURE CARDIOVASCULAR RESEARCH 2024; 3:651-665. [PMID: 39196230 DOI: 10.1038/s44161-024-00482-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 04/24/2024] [Indexed: 08/29/2024]
Abstract
Hematopoietic stem cells (HSCs) generate all blood cell lineages responsible for tissue oxygenation, life-long hematopoietic homeostasis and immune protection. In adulthood, HSCs primarily reside in the bone marrow (BM) microenvironment, consisting of diverse cell types that constitute the stem cell 'niche'. The adaptability of the hematopoietic system is required to respond to the needs of the host, whether to maintain normal physiology or during periods of physical, psychosocial or environmental stress. Hematopoietic homeostasis is achieved by intricate coordination of systemic and local factors that orchestrate the function of HSCs throughout life. However, homeostasis is not a static process; it modulates HSC and progenitor activity in response to circadian rhythms coordinated by the central and peripheral nervous systems, inflammatory cues, metabolites and pathologic conditions. Here, we review local and systemic factors that impact hematopoiesis, focusing on the implications of aging, stress and cardiovascular disease.
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Affiliation(s)
- Randall S Carpenter
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
- Ruth L. and David S. Gottesman Institute for Stem Cell Biology and Regenerative Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Maria Maryanovich
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA.
- Ruth L. and David S. Gottesman Institute for Stem Cell Biology and Regenerative Medicine, Albert Einstein College of Medicine, Bronx, NY, USA.
- Cancer Dormancy and Tumor Microenvironment Institute, Albert Einstein College of Medicine, Bronx, NY, USA.
- Montefiore Einstein Comprehensive Cancer Center, Albert Einstein College of Medicine, Bronx, NY, USA.
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Su Z, Guo C, Gui X, Wu L, Zhang B, Qin Y, Tan Z, Zhou C, Wei W, Fan Y, Zhang X. 3D printing of customized bioceramics for promoting bone tissue regeneration by regulating sympathetic nerve behavior. J Mater Chem B 2024; 12:4217-4231. [PMID: 38596904 DOI: 10.1039/d4tb00214h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/11/2024]
Abstract
Numerous studies have shown that there are multiple neural activities involved in the process of bone resorption and bone regeneration, and promoting osteogenesis by promoting neural network reconstruction is an effective strategy for repairing critical size bone defects. However, traumatic bone defects often cause activation of the sympathetic nervous system (SNS) in the damaged area, releasing excess catecholamines (CAs), resulting in a decrease in the rate of bone formation. Herein, a 3D-printed scaffold loaded with propranolol (PRN) is proposed to reduce CA concentrations in bone defect areas and promote bone regeneration through drug release. For this purpose, PRN-loaded methacrylated gelatin (GelMA) microspheres were mixed with low-concentration GelMA and perfused into a 3D-printed porous hydroxyapatite (HAp) scaffold. By releasing PRN, which can block β-adrenergic receptors, it hinders the activation of sympathetic nerves and inhibits the release of excess CA by the SNS. At the same time, the composite scaffold recruits bone marrow mesenchymal stem cells (BMSCs) and promotes the differentiation of BMSCs in the direction of osteoblasts, which effectively promotes bone regeneration in the rabbit femoral condyle defect model. The results of the study showed that the release of PRN from the composite scaffold could effectively hinder the activation of sympathetic nerves and promote bone regeneration, providing a new strategy for the treatment of bone defects.
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Affiliation(s)
- Zixuan Su
- College of Biomedical Engineering, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.
| | - Chuan Guo
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xingyu Gui
- College of Biomedical Engineering, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.
| | - Lina Wu
- College of Biomedical Engineering, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.
| | - Boqing Zhang
- College of Biomedical Engineering, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.
| | - Yuxiang Qin
- College of Biomedical Engineering, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.
| | - Zhen Tan
- Department of Bone and Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, 518036, China
| | - Changchun Zhou
- College of Biomedical Engineering, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.
| | - Wei Wei
- Department of Emergency, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Yujiang Fan
- College of Biomedical Engineering, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.
| | - Xingdong Zhang
- College of Biomedical Engineering, National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, 610064, China.
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Zhang Y, Zhao X, Ge D, Huang Y, Yao Q. The impact and mechanism of nerve injury on bone metabolism. Biochem Biophys Res Commun 2024; 704:149699. [PMID: 38412668 DOI: 10.1016/j.bbrc.2024.149699] [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: 11/19/2023] [Revised: 01/30/2024] [Accepted: 02/15/2024] [Indexed: 02/29/2024]
Abstract
With an increasing understanding of the mechanisms of fracture healing, it has been found that nerve injury plays a crucial role in the process, but the specific mechanism is yet to be completely revealed. To address this issue and provide novel insights for fracture treatment, we compiled this review. This review aims to study the impact of nerve injury on fracture healing, exploring the role of neurotrophic factors in the healing process. We first revisited the effects of the central nervous system (CNS) and the peripheral nervous system (PNS) on the skeletal system, and further explained the phenomenon of significantly accelerated fracture healing under nerve injury conditions. Then, from the perspective of neurotrophic factors, we delved into the physiological functions and mechanisms of neurotrophic factors, such as nerve growth factor (NGF), Neuropeptides (NPs), and Brain-derived neurotrophic factor (BDNF), in bone metabolism. These effects include direct actions on bone cells, improvement of local blood supply, regulation of bone growth factors, control of cellular signaling pathways, promotion of callus formation and bone regeneration, and synergistic or antagonistic effects with other endocrine factors, such as Sema3A and Transforming Growth Factor β (TGF-β). Finally, we discussed the treatments of fractures with nerve injuries and the future research directions in this review, suggesting that the relationship between nerve injury and fracture healing, as well as the role of nerve injury in other skeletal diseases.
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Affiliation(s)
- Yongqiang Zhang
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China; Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China; Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Xiao Zhao
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China; Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China; Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Dawei Ge
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China; Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China; Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China
| | - Yang Huang
- International Innovation Center for Forest Chemicals & Materials and Jiangsu Co-Innovation Center of Efficient Processing & Utilization of Forest Resources, Nanjing Forestry University, Nanjing, China
| | - Qingqiang Yao
- Department of Orthopedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, China; Key Lab of Additive Manufacturing Technology, Institute of Digital Medicine, Nanjing Medical University, Nanjing, China; Research Center of Digital Medicine and 3D Printing Technology of Jiangsu Province, Nanjing, China.
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Fava M, De Dominicis N, Forte G, Bari M, Leuti A, Maccarrone M. Cellular and Molecular Effects of Microgravity on the Immune System: A Focus on Bioactive Lipids. Biomolecules 2024; 14:446. [PMID: 38672462 PMCID: PMC11048039 DOI: 10.3390/biom14040446] [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: 01/31/2024] [Revised: 03/29/2024] [Accepted: 03/30/2024] [Indexed: 04/28/2024] Open
Abstract
Microgravity is one of the main stressors that astronauts are exposed to during space missions. This condition has been linked to many disorders, including those that feature dysfunctional immune homeostasis and inflammatory damage. Over the past 30 years, a significant body of work has been gathered connecting weightlessness-either authentic or simulated-to an inefficient reaction to pathogens, dysfunctional production of cytokines and impaired survival of immune cells. These processes are also orchestrated by a plethora of bioactive lipids, produced by virtually all cells involved in immune events, which control the induction, magnitude, outcome, compartmentalization and trafficking of immunocytes during the response to injury. Despite their crucial importance in inflammation and its modulation, however, data concerning the role of bioactive lipids in microgravity-induced immune dysfunctions are surprisingly scarce, both in quantity and in variety, and the vast majority of it focuses on two lipid classes, namely eicosanoids and endocannabinoids. The present review aims to outline the accumulated knowledge addressing the effects elicited by microgravity-both simulated and authentic-on the metabolism and signaling of these two prominent lipid groups in the context of immune and inflammatory homeostasis.
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Affiliation(s)
- Marina Fava
- Department of Medicine, Campus Bio-Medico University of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy; (M.F.); (G.F.)
- European Center for Brain Research/IRCCS Santa Lucia Foundation, Via del Fosso di Fiorano 64, 00143 Rome, Italy
| | - Noemi De Dominicis
- Department of Physics, University of Trento, 38123 Trento, Italy;
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy
| | - Giulia Forte
- Department of Medicine, Campus Bio-Medico University of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy; (M.F.); (G.F.)
| | - Monica Bari
- Department of Medicine, Campus Bio-Medico University of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy; (M.F.); (G.F.)
| | - Alessandro Leuti
- Department of Medicine, Campus Bio-Medico University of Rome, Via Alvaro del Portillo 21, 00128 Rome, Italy; (M.F.); (G.F.)
- European Center for Brain Research/IRCCS Santa Lucia Foundation, Via del Fosso di Fiorano 64, 00143 Rome, Italy
| | - Mauro Maccarrone
- European Center for Brain Research/IRCCS Santa Lucia Foundation, Via del Fosso di Fiorano 64, 00143 Rome, Italy
- Department of Biotechnological and Applied Clinical Sciences, University of L’Aquila, 67100 L’Aquila, Italy
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13
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Yang D, Xu J, Xu K, Xu P. Skeletal interoception in osteoarthritis. Bone Res 2024; 12:22. [PMID: 38561376 PMCID: PMC10985098 DOI: 10.1038/s41413-024-00328-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 03/02/2024] [Accepted: 03/16/2024] [Indexed: 04/04/2024] Open
Abstract
The interoception maintains proper physiological conditions and metabolic homeostasis by releasing regulatory signals after perceving changes in the internal state of the organism. Among its various forms, skeletal interoception specifically regulates the metabolic homeostasis of bones. Osteoarthritis (OA) is a complex joint disorder involving cartilage, subchondral bone, and synovium. The subchondral bone undergoes continuous remodeling to adapt to dynamic joint loads. Recent findings highlight that skeletal interoception mediated by aberrant mechanical loads contributes to pathological remodeling of the subchondral bone, resulting in subchondral bone sclerosis in OA. The skeletal interoception is also a potential mechanism for chronic synovial inflammation in OA. In this review, we offer a general overview of interoception, specifically skeletal interoception, subchondral bone microenviroment and the aberrant subchondral remedeling. We also discuss the role of skeletal interoception in abnormal subchondral bone remodeling and synovial inflammation in OA, as well as the potential prospects and challenges in exploring novel OA therapies that target skeletal interoception.
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Affiliation(s)
- Dinglong Yang
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Jiawen Xu
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Ke Xu
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, 710054, China
| | - Peng Xu
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an, 710054, China.
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14
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Gao F, Hu Q, Chen W, Li J, Qi C, Yan Y, Qian C, Wan M, Ficke J, Zheng J, Cao X. Brain regulates weight bearing bone through PGE2 skeletal interoception: implication of ankle osteoarthritis and pain. Bone Res 2024; 12:16. [PMID: 38443372 PMCID: PMC10914853 DOI: 10.1038/s41413-024-00316-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 01/12/2024] [Accepted: 01/15/2024] [Indexed: 03/07/2024] Open
Abstract
Bone is a mechanosensitive tissue and undergoes constant remodeling to adapt to the mechanical loading environment. However, it is unclear whether the signals of bone cells in response to mechanical stress are processed and interpreted in the brain. In this study, we found that the hypothalamus of the brain regulates bone remodeling and structure by perceiving bone prostaglandin E2 (PGE2) concentration in response to mechanical loading. Bone PGE2 levels are in proportion to their weight bearing. When weight bearing changes in the tail-suspension mice, the PGE2 concentrations in bones change in line with their weight bearing changes. Deletion of cyclooxygenase-2 (COX2) in the osteoblast lineage cells or knockout of receptor 4 (EP4) in sensory nerve blunts bone formation in response to mechanical loading. Moreover, knockout of TrkA in sensory nerve also significantly reduces mechanical load-induced bone formation. Moreover, mechanical loading induces cAMP-response element binding protein (CREB) phosphorylation in the hypothalamic arcuate nucleus (ARC) to inhibit sympathetic tyrosine hydroxylase (TH) expression in the paraventricular nucleus (PVN) for osteogenesis. Finally, we show that elevated PGE2 is associated with ankle osteoarthritis (AOA) and pain. Together, our data demonstrate that in response to mechanical loading, skeletal interoception occurs in the form of hypothalamic processing of PGE2-driven peripheral signaling to maintain physiologic bone homeostasis, while chronically elevated PGE2 can be sensed as pain during AOA and implication of potential treatment.
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Affiliation(s)
- Feng Gao
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Qimiao Hu
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Wenwei Chen
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Jilong Li
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Cheng Qi
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Yiwen Yan
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Cheng Qian
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Mei Wan
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - James Ficke
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Junying Zheng
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA
| | - Xu Cao
- Department of Orthopedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA.
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, 21205, USA.
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15
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Yang D, Xu K, Xu X, Xu P. Revisiting prostaglandin E2: A promising therapeutic target for osteoarthritis. Clin Immunol 2024; 260:109904. [PMID: 38262526 DOI: 10.1016/j.clim.2024.109904] [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: 12/01/2023] [Revised: 01/08/2024] [Accepted: 01/14/2024] [Indexed: 01/25/2024]
Abstract
Osteoarthritis (OA) is a complex disease characterized by cartilage degeneration and persistent pain. Prostaglandin E2 (PGE2) plays a significant role in OA inflammation and pain. Recent studies have revealed the significant role of PGE2-mediated skeletal interoception in the progression of OA, providing new insights into the pathogenesis and treatment of OA. This aspect also deserves special attention in this review. Additionally, PGE2 is directly involved in pathologic processes including aberrant subchondral bone remodeling, cartilage degeneration, and synovial inflammation. Therefore, celecoxib, a commonly used drug to alleviate inflammatory pain through inhibiting PGE2, serves not only as an analgesic for OA but also as a potential disease-modifying drug. This review provides a comprehensive overview of the discovery history, synthesis and release pathways, and common physiological roles of PGE2. We discuss the roles of PGE2 and celecoxib in OA and pain from skeletal interoception and multiple perspectives. The purpose of this review is to highlight PGE2-mediated skeletal interoception and refresh our understanding of celecoxib in the pathogenesis and treatment of OA.
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Affiliation(s)
- Dinglong Yang
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - Ke Xu
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - Xin Xu
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, China
| | - Peng Xu
- Department of Joint Surgery, Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, China.
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16
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Ma C, Zhang Y, Cao Y, Hu CH, Zheng CX, Jin Y, Sui BD. Autonomic neural regulation in mediating the brain-bone axis: mechanisms and implications for regeneration under psychological stress. QJM 2024; 117:95-108. [PMID: 37252831 DOI: 10.1093/qjmed/hcad108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Indexed: 06/01/2023] Open
Abstract
Efficient regeneration of bone defects caused by disease or significant trauma is a major challenge in current medicine, which is particularly difficult yet significant under the emerging psychological stress in the modern society. Notably, the brain-bone axis has been proposed as a prominent new concept in recent years, among which autonomic nerves act as an essential and emerging skeletal pathophysiological factor related to psychological stress. Studies have established that sympathetic cues lead to impairment of bone homeostasis mainly through acting on mesenchymal stem cells (MSCs) and their derivatives with also affecting the hematopoietic stem cell (HSC)-lineage osteoclasts, and the autonomic neural regulation of stem cell lineages in bone is increasingly recognized to contribute to the bone degenerative disease, osteoporosis. This review summarizes the distribution characteristics of autonomic nerves in bone, introduces the regulatory effects and mechanisms of autonomic nerves on MSC and HSC lineages, and expounds the crucial role of autonomic neural regulation on bone physiology and pathology, which acts as a bridge between the brain and the bone. With the translational perspective, we further highlight the autonomic neural basis of psychological stress-induced bone loss and a series of pharmaceutical therapeutic strategies and implications toward bone regeneration. The summary of research progress in this field will add knowledge to the current landscape of inter-organ crosstalk and provide a medicinal basis for the achievement of clinical bone regeneration in the future.
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Affiliation(s)
- C Ma
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Y Zhang
- Department of Medical Rehabilitation, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Y Cao
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - C-H Hu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
- Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, Shaanxi 710032, China
| | - C-X Zheng
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Y Jin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
- Xi'an Institute of Tissue Engineering and Regenerative Medicine, Xi'an, Shaanxi 710032, China
| | - B-D Sui
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China
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17
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Mardelle U, Bretaud N, Daher C, Feuillet V. From pain to tumor immunity: influence of peripheral sensory neurons in cancer. Front Immunol 2024; 15:1335387. [PMID: 38433844 PMCID: PMC10905387 DOI: 10.3389/fimmu.2024.1335387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 01/29/2024] [Indexed: 03/05/2024] Open
Abstract
The nervous and immune systems are the primary sensory interfaces of the body, allowing it to recognize, process, and respond to various stimuli from both the external and internal environment. These systems work in concert through various mechanisms of neuro-immune crosstalk to detect threats, provide defense against pathogens, and maintain or restore homeostasis, but can also contribute to the development of diseases. Among peripheral sensory neurons (PSNs), nociceptive PSNs are of particular interest. They possess a remarkable capability to detect noxious stimuli in the periphery and transmit this information to the brain, resulting in the perception of pain and the activation of adaptive responses. Pain is an early symptom of cancer, often leading to its diagnosis, but it is also a major source of distress for patients as the disease progresses. In this review, we aim to provide an overview of the mechanisms within tumors that are likely to induce cancer pain, exploring a range of factors from etiological elements to cellular and molecular mediators. In addition to transmitting sensory information to the central nervous system, PSNs are also capable, when activated, to produce and release neuropeptides (e.g., CGRP and SP) from their peripheral terminals. These neuropeptides have been shown to modulate immunity in cases of inflammation, infection, and cancer. PSNs, often found within solid tumors, are likely to play a significant role in the tumor microenvironment, potentially influencing both tumor growth and anti-tumor immune responses. In this review, we discuss the current state of knowledge about the degree of sensory innervation in tumors. We also seek to understand whether and how PSNs may influence the tumor growth and associated anti-tumor immunity in different mouse models of cancer. Finally, we discuss the extent to which the tumor is able to influence the development and functions of the PSNs that innervate it.
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Affiliation(s)
- Ugo Mardelle
- Aix-Marseille Université, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Ninon Bretaud
- Aix-Marseille Université, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Clara Daher
- Aix-Marseille Université, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Vincent Feuillet
- Aix-Marseille Université, Centre National de la Recherche Scientifique (CNRS), Institut National de la Santé et de la Recherche Médicale (INSERM), CIML, Centre d'Immunologie de Marseille-Luminy, Marseille, France
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18
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Shalabi S, Belayachi A, Larrivée B. Involvement of neuronal factors in tumor angiogenesis and the shaping of the cancer microenvironment. Front Immunol 2024; 15:1284629. [PMID: 38375479 PMCID: PMC10875004 DOI: 10.3389/fimmu.2024.1284629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 01/09/2024] [Indexed: 02/21/2024] Open
Abstract
Emerging evidence suggests that nerves within the tumor microenvironment play a crucial role in regulating angiogenesis. Neurotransmitters and neuropeptides released by nerves can interact with nearby blood vessels and tumor cells, influencing their behavior and modulating the angiogenic response. Moreover, nerve-derived signals may activate signaling pathways that enhance the production of pro-angiogenic factors within the tumor microenvironment, further supporting blood vessel growth around tumors. The intricate network of communication between neural constituents and the vascular system accentuates the potential of therapeutically targeting neural-mediated pathways as an innovative strategy to modulate tumor angiogenesis and, consequently, neoplastic proliferation. Hereby, we review studies that evaluate the precise molecular interplay and the potential clinical ramifications of manipulating neural elements for the purpose of anti-angiogenic therapeutics within the scope of cancer treatment.
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Affiliation(s)
- Sharif Shalabi
- Maisonneuve-Rosemont Hospital Research Center, Boulevard de l’Assomption, Montréal, QC, Canada
| | - Ali Belayachi
- Maisonneuve-Rosemont Hospital Research Center, Boulevard de l’Assomption, Montréal, QC, Canada
| | - Bruno Larrivée
- Maisonneuve-Rosemont Hospital Research Center, Boulevard de l’Assomption, Montréal, QC, Canada
- Department of Biochemistry and Molecular Medicine, Montréal, QC, Canada
- Ophthalmology, Université de Montréal, boul. Édouard-Montpetit, Montréal, QC, Canada
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19
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Zhang F, Qiao W, Wei JA, Tao Z, Chen C, Wu Y, Lin M, Ng KMC, Zhang L, Yeung KWK, Chow BKC. Secretin-dependent signals in the ventromedial hypothalamus regulate energy metabolism and bone homeostasis in mice. Nat Commun 2024; 15:1030. [PMID: 38310104 PMCID: PMC10838336 DOI: 10.1038/s41467-024-45436-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 01/22/2024] [Indexed: 02/05/2024] Open
Abstract
Secretin, though originally discovered as a gut-derived hormone, is recently found to be abundantly expressed in the ventromedial hypothalamus, from which the central neural system controls satiety, energy metabolism, and bone homeostasis. However, the functional significance of secretin in the ventromedial hypothalamus remains unclear. Here we show that the loss of ventromedial hypothalamus-derived secretin leads to osteopenia in male and female mice, which is primarily induced by diminished cAMP response element-binding protein phosphorylation and upregulation in peripheral sympathetic activity. Moreover, the ventromedial hypothalamus-secretin inhibition also contributes to hyperphagia, dysregulated lipogenesis, and impaired thermogenesis, resulting in obesity in male and female mice. Conversely, overexpression of secretin in the ventromedial hypothalamus promotes bone mass accrual in mice of both sexes. Collectively, our findings identify an unappreciated secretin signaling in the central neural system for the regulation of energy and bone metabolism, which may serve as a new target for the clinical management of obesity and osteoporosis.
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Affiliation(s)
- Fengwei Zhang
- School of Biological Sciences, the University of Hong Kong, Hong Kong, China
| | - Wei Qiao
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, the University of Hong Kong, Hong Kong, China.
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, the University of Hong Kong-Shenzhen Hospital, Shenzhen, China.
| | - Ji-An Wei
- School of Biological Sciences, the University of Hong Kong, Hong Kong, China
- Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, China
| | - Zhengyi Tao
- School of Biological Sciences, the University of Hong Kong, Hong Kong, China
| | - Congjia Chen
- School of Biological Sciences, the University of Hong Kong, Hong Kong, China
| | - Yefeng Wu
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, the University of Hong Kong, Hong Kong, China
| | - Minghui Lin
- School of Biological Sciences, the University of Hong Kong, Hong Kong, China
| | - Ka Man Carmen Ng
- School of Biological Sciences, the University of Hong Kong, Hong Kong, China
| | - Li Zhang
- Key Laboratory of CNS Regeneration (Ministry of Education), GHM Institute of CNS Regeneration, Jinan University, Guangzhou, China
- Neuroscience and Neurorehabilitation Institute, University of Health and Rehabilitation Sciences, Qingdao, China
| | - Kelvin Wai-Kwok Yeung
- Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma, the University of Hong Kong-Shenzhen Hospital, Shenzhen, China.
- Department of Orthopaedics and Traumatology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, the University of Hong Kong, Hong Kong, China.
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20
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Morris AJ, Parker RS, Nazzal MK, Natoli RM, Fehrenbacher JC, Kacena MA, White FA. Cracking the Code: The Role of Peripheral Nervous System Signaling in Fracture Repair. Curr Osteoporos Rep 2024; 22:193-204. [PMID: 38236511 PMCID: PMC10912155 DOI: 10.1007/s11914-023-00846-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/19/2023] [Indexed: 01/19/2024]
Abstract
PURPOSE OF REVIEW The traditionally understated role of neural regulation in fracture healing is gaining prominence, as recent findings underscore the peripheral nervous system's critical contribution to bone repair. Indeed, it is becoming more evident that the nervous system modulates every stage of fracture healing, from the onset of inflammation to repair and eventual remodeling. RECENT FINDINGS Essential to this process are neurotrophins and neuropeptides, such as substance P, calcitonin gene-related peptide, and neuropeptide Y. These molecules fulfill key roles in promoting osteogenesis, influencing inflammation, and mediating pain. The sympathetic nervous system also plays an important role in the healing process: while local sympathectomies may improve fracture healing, systemic sympathetic denervation impairs fracture healing. Furthermore, chronic activation of the sympathetic nervous system, often triggered by stress, is a potential impediment to effective fracture healing, marking an important area for further investigation. The potential to manipulate aspects of the nervous system offers promising therapeutic possibilities for improving outcomes in fracture healing. This review article is part of a series of multiple manuscripts designed to determine the utility of using artificial intelligence for writing scientific reviews.
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Affiliation(s)
- Ashlyn J Morris
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Reginald S Parker
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Murad K Nazzal
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Roman M Natoli
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Jill C Fehrenbacher
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN, USA
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Melissa A Kacena
- Department of Orthopaedic Surgery, Indiana University School of Medicine, Indianapolis, IN, USA.
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA.
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA.
| | - Fletcher A White
- Indiana Center for Musculoskeletal Health, Indiana University School of Medicine, Indianapolis, IN, USA.
- Stark Neuroscience Research Institute, Indiana University School of Medicine, Indianapolis, IN, USA.
- Richard L. Roudebush VA Medical Center, Indianapolis, IN, USA.
- Department of Anesthesia, Indiana University School of Medicine, Indianapolis, IN, USA.
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21
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Wang P, Shao W, Li Z, Wang B, Lv X, Huang Y, Feng Y. Non-bone-derived exosomes: a new perspective on regulators of bone homeostasis. Cell Commun Signal 2024; 22:70. [PMID: 38273356 PMCID: PMC10811851 DOI: 10.1186/s12964-023-01431-7] [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: 09/10/2023] [Accepted: 12/09/2023] [Indexed: 01/27/2024] Open
Abstract
Accumulating evidence indicates that exosomes help to regulate bone homeostasis. The roles of bone-derived exosomes have been well-described; however, recent studies have shown that some non-bone-derived exosomes have better bone targeting ability than bone-derived exosomes and that their performance as a drug delivery vehicle for regulating bone homeostasis may be better than that of bone-derived exosomes, and the sources of non-bone-derived exosomes are more extensive and can thus be better for clinical needs. Here, we sort non-bone-derived exosomes and describe their composition and biogenesis. Their roles and specific mechanisms in bone homeostasis and bone-related diseases are also discussed. Furthermore, we reveal obstacles to current research and future challenges in the practical application of exosomes, and we provide potential strategies for more effective application of exosomes for the regulation of bone homeostasis and the treatment of bone-related diseases. Video Abstract.
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Affiliation(s)
- Ping Wang
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Wenkai Shao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zilin Li
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Bo Wang
- Department of Rehabilitation, Wuhan No. 1 Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Xiao Lv
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yiyao Huang
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, Guangdong, China.
| | - Yong Feng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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22
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Zhao Y, Peng X, Wang Q, Zhang Z, Wang L, Xu Y, Yang H, Bai J, Geng D. Crosstalk Between the Neuroendocrine System and Bone Homeostasis. Endocr Rev 2024; 45:95-124. [PMID: 37459436 DOI: 10.1210/endrev/bnad025] [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: 12/31/2022] [Indexed: 01/05/2024]
Abstract
The homeostasis of bone microenvironment is the foundation of bone health and comprises 2 concerted events: bone formation by osteoblasts and bone resorption by osteoclasts. In the early 21st century, leptin, an adipocytes-derived hormone, was found to affect bone homeostasis through hypothalamic relay and the sympathetic nervous system, involving neurotransmitters like serotonin and norepinephrine. This discovery has provided a new perspective regarding the synergistic effects of endocrine and nervous systems on skeletal homeostasis. Since then, more studies have been conducted, gradually uncovering the complex neuroendocrine regulation underlying bone homeostasis. Intriguingly, bone is also considered as an endocrine organ that can produce regulatory factors that in turn exert effects on neuroendocrine activities. After decades of exploration into bone regulation mechanisms, separate bioactive factors have been extensively investigated, whereas few studies have systematically shown a global view of bone homeostasis regulation. Therefore, we summarized the previously studied regulatory patterns from the nervous system and endocrine system to bone. This review will provide readers with a panoramic view of the intimate relationship between the neuroendocrine system and bone, compensating for the current understanding of the regulation patterns of bone homeostasis, and probably developing new therapeutic strategies for its related disorders.
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Affiliation(s)
- Yuhu Zhao
- Department of Orthopedics, The First Affiliated Hospital of Soochow University; Orthopedics Institute, Medical College, Soochow University, Suzhou, Jiangsu 215006, China
| | - Xiaole Peng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University; Orthopedics Institute, Medical College, Soochow University, Suzhou, Jiangsu 215006, China
| | - Qing Wang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University; Orthopedics Institute, Medical College, Soochow University, Suzhou, Jiangsu 215006, China
| | - Zhiyu Zhang
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Liangliang Wang
- Department of Orthopedics, The Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, Jiangsu 213000, China
| | - Yaozeng Xu
- Department of Orthopedics, The First Affiliated Hospital of Soochow University; Orthopedics Institute, Medical College, Soochow University, Suzhou, Jiangsu 215006, China
| | - Huilin Yang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University; Orthopedics Institute, Medical College, Soochow University, Suzhou, Jiangsu 215006, China
| | - Jiaxiang Bai
- Department of Orthopedics, The First Affiliated Hospital of Soochow University; Orthopedics Institute, Medical College, Soochow University, Suzhou, Jiangsu 215006, China
- Department of Orthopedics, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei 230022, China
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University; Orthopedics Institute, Medical College, Soochow University, Suzhou, Jiangsu 215006, China
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23
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Sun W, Ye B, Chen S, Zeng L, Lu H, Wan Y, Gao Q, Chen K, Qu Y, Wu B, Lv X, Guo X. Neuro-bone tissue engineering: emerging mechanisms, potential strategies, and current challenges. Bone Res 2023; 11:65. [PMID: 38123549 PMCID: PMC10733346 DOI: 10.1038/s41413-023-00302-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 10/08/2023] [Accepted: 10/31/2023] [Indexed: 12/23/2023] Open
Abstract
The skeleton is a highly innervated organ in which nerve fibers interact with various skeletal cells. Peripheral nerve endings release neurogenic factors and sense skeletal signals, which mediate bone metabolism and skeletal pain. In recent years, bone tissue engineering has increasingly focused on the effects of the nervous system on bone regeneration. Simultaneous regeneration of bone and nerves through the use of materials or by the enhancement of endogenous neurogenic repair signals has been proven to promote functional bone regeneration. Additionally, emerging information on the mechanisms of skeletal interoception and the central nervous system regulation of bone homeostasis provide an opportunity for advancing biomaterials. However, comprehensive reviews of this topic are lacking. Therefore, this review provides an overview of the relationship between nerves and bone regeneration, focusing on tissue engineering applications. We discuss novel regulatory mechanisms and explore innovative approaches based on nerve-bone interactions for bone regeneration. Finally, the challenges and future prospects of this field are briefly discussed.
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Affiliation(s)
- Wenzhe Sun
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Bing Ye
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Siyue Chen
- School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Lian Zeng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Hongwei Lu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Yizhou Wan
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Qing Gao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Kaifang Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Yanzhen Qu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Bin Wu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Xiao Lv
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
| | - Xiaodong Guo
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China.
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24
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Guo Q, Chen N, Patel K, Wan M, Zheng J, Cao X. Unloading-Induced Skeletal Interoception Alters Hypothalamic Signaling to Promote Bone Loss and Fat Metabolism. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2305042. [PMID: 37880864 PMCID: PMC10724445 DOI: 10.1002/advs.202305042] [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: 07/23/2023] [Revised: 10/02/2023] [Indexed: 10/27/2023]
Abstract
Microgravity is the primary factor that affects human physiology in spaceflight, particularly bone loss and disturbances of the central nervous system. However, little is known about the cellular and molecular mechanisms of these effects. Here, it is reported that in mice hindlimb unloading stimulates expression of neuropeptide Y (NPY) and tyrosine hydroxylase (TH) in the hypothalamus, resulting in bone loss and altered fat metabolism. Enhanced expression of TH and NPY in the hypothalamus occurs downstream of a reduced prostaglandin E2 (PGE2)-mediated ascending interoceptive signaling of the skeletal interoception. Sympathetic antagonist propranolol or deletion of Adrb2 in osteocytes rescue bone loss in the unloading model. Moreover, depletion of TH+ sympathetic nerves or inhibition of norepinephrine release ameliorated bone resorption. Stereotactic inhibition of NPY expression in the hypothalamic neurons reduces the food intake with altered energy expenditure with a limited effect on bone, indicating hypothalamic neuroendocrine factor NPY in the facilitation of bone formation by sympathetic TH activity. These findings suggest that reduced PGE2-mediated interoceptive signaling in response to microgravity or unloading has impacts on the skeletal and central nervous systems that are reciprocally regulated.
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Affiliation(s)
- Qiaoyue Guo
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Department of EndocrinologyEndocrinology Research CenterXiangya Hospital of Central South UniversityChangshaHunan410008China
| | - Ningrong Chen
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Kalp Patel
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Mei Wan
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Junying Zheng
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Xu Cao
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Department of Biomedical EngineeringJohns Hopkins University School of MedicineBaltimoreMD21205USA
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25
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Wang J, He Y, Wang B, Yin R, Chen B, Wang H. Muscle-targeted nanoparticles strengthen the effects of small-molecule inhibitors in ameliorating sarcopenia. Nanomedicine (Lond) 2023; 18:1635-1649. [PMID: 37909281 DOI: 10.2217/nnm-2023-0201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023] Open
Abstract
Background: Sarcopenia is an aging-related degeneration of muscle mass and strength. Small-molecule inhibitor SW033291 has been shown to attenuate muscle atrophy. Targeted nanodrug-delivery systems can improve the efficacy of small-molecule inhibitors. Methods: The skeletal muscle cell-targeted nanoparticle was called AP@SW033291, which consisted of SW033291, modular peptide ASSLNIAGGRRRRRG and PEG-DSPE. Nanoparticles were featured with particle size, fluorescence emission spectra and targeting ability. We also investigated their effects on muscle mass and function. Results: The size of AP@SW033291 was 125.7 nm and it demonstrated targeting effects on skeletal muscle; thus, it could improve muscle mass and muscle function. Conclusion: Nanoparticle AP@SW033291 could become a potential strategy to strengthen the treatment effects of small-molecule inhibitors in sarcopenia.
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Affiliation(s)
- Jinyu Wang
- Department of Rehabilitation, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Yikang He
- Department of Rehabilitation, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Baoyue Wang
- Lianshui People's Hospital of Kangda College Affiliated to Nanjing Medical University, Huaian, Jiangsu, PR China
| | - Ruian Yin
- Department of Rehabilitation, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
| | - Biao Chen
- Department of Obstetrics & Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, Hubei, PR China
| | - Hongxing Wang
- Department of Rehabilitation, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, PR China
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26
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Hassan MG, Horenberg AL, Coler-Reilly A, Grayson WL, Scheller EL. Role of the Peripheral Nervous System in Skeletal Development and Regeneration: Controversies and Clinical Implications. Curr Osteoporos Rep 2023; 21:503-518. [PMID: 37578676 PMCID: PMC10543521 DOI: 10.1007/s11914-023-00815-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/25/2023] [Indexed: 08/15/2023]
Abstract
PURPOSE OF REVIEW This review examines the diverse functional relationships that exist between the peripheral nervous system (PNS) and bone, including key advances over the past century that inform our efforts to translate these discoveries for skeletal repair. RECENT FINDINGS The innervation of the bone during development, homeostasis, and regeneration is highly patterned. Consistent with this, there have been nearly 100 studies over the past century that have used denervation approaches to isolate the effects of the different branches of the PNS on the bone. Overall, a common theme of balance emerges whereby an orchestration of both local and systemic neural functions must align to promote optimal skeletal repair while limiting negative consequences such as pain. An improved understanding of the functional bidirectional pathways linking the PNS and bone has important implications for skeletal development and regeneration. Clinical advances over the next century will necessitate a rigorous identification of the mechanisms underlying these effects that is cautious not to oversimplify the in vivo condition in diverse states of health and disease.
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Affiliation(s)
- Mohamed G Hassan
- Department of Medicine, Division of Bone and Mineral Diseases, Washington University, 660 South Euclid Avenue, Campus Box 8301, St. Louis, MO, 63110, USA
| | - Allison L Horenberg
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
- Translational Tissue Engineering Center, Johns Hopkins University, Baltimore, MD, USA
| | - Ariella Coler-Reilly
- Department of Medicine, Division of Bone and Mineral Diseases, Washington University, 660 South Euclid Avenue, Campus Box 8301, St. Louis, MO, 63110, USA
| | - Warren L Grayson
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
- Translational Tissue Engineering Center, Johns Hopkins University, Baltimore, MD, USA
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, USA
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, MD, USA
| | - Erica L Scheller
- Department of Medicine, Division of Bone and Mineral Diseases, Washington University, 660 South Euclid Avenue, Campus Box 8301, St. Louis, MO, 63110, USA.
- Department of Biomedical Engineering, Washington University, MO, St. Louis, USA.
- Department of Cell Biology and Physiology, Washington University, MO, St. Louis, USA.
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27
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Xu HK, Liu JX, Zheng CX, Liu L, Ma C, Tian JY, Yuan Y, Cao Y, Xing SJ, Liu SY, Li Q, Zhao YJ, Kong L, Chen YJ, Sui BD. Region-specific sympatho-adrenergic regulation of specialized vasculature in bone homeostasis and regeneration. iScience 2023; 26:107455. [PMID: 37680481 PMCID: PMC10481296 DOI: 10.1016/j.isci.2023.107455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 06/13/2023] [Accepted: 07/19/2023] [Indexed: 09/09/2023] Open
Abstract
Type H vessels couple angiogenesis with osteogenesis, while sympathetic cues regulate vascular and skeletal function. The crosstalk between sympathetic nerves and type H vessels in bone remains unclear. Here, we first identify close spatial connections between sympathetic nerves and type H vessels in bone, particularly in metaphysis. Sympathoexcitation, mimicked by isoproterenol (ISO) injection, reduces type H vessels and bone mass. Conversely, beta-2-adrenergic receptor (ADRB2) deficiency maintains type H vessels and bone mass in the physiological condition. In vitro experiments reveal indirect sympathetic modulation of angiogenesis via paracrine effects of mesenchymal stem cells (MSCs), which alter the transcription of multiple angiogenic genes in endothelial cells (ECs). Furthermore, Notch signaling in ECs underlies sympathoexcitation-regulated type H vessel formation, impacting osteogenesis and bone mass. Finally, propranolol (PRO) inhibits beta-adrenergic activity and protects type H vessels and bone mass against estrogen deficiency. These findings unravel the specialized neurovascular coupling in bone homeostasis and regeneration.
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Affiliation(s)
- Hao-Kun Xu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
- Department of Oral Anatomy and Physiology, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Jie-Xi Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Chen-Xi Zheng
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Lu Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Chao Ma
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Jiong-Yi Tian
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Yuan Yuan
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
- Exercise Immunology Center, Wuhan Sports University, Wuhan, Hubei 430079, China
| | - Yuan Cao
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Shu-Juan Xing
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Si-Ying Liu
- Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Qiang Li
- Department of General Dentistry & Emergency, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Ya-Juan Zhao
- Department of General Dentistry & Emergency, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Liang Kong
- Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Yong-Jin Chen
- Department of General Dentistry & Emergency, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
| | - Bing-Dong Sui
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Center for Tissue Engineering, School of Stomatology, The Fourth Military Medical University, Xi’an, Shaanxi 710032, China
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28
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Gao F, Hu Q, Qi C, Wan M, Ficke J, Zheng J, Cao X. Mechanical loading-induced change of bone homeostasis is mediated by PGE2-driven hypothalamic interoception. RESEARCH SQUARE 2023:rs.3.rs-3325498. [PMID: 37790467 PMCID: PMC10543368 DOI: 10.21203/rs.3.rs-3325498/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
Bone is a mechanosensitive tissue and undergoes constant remodeling to adapt to the mechanical loading environment. However, it is unclear whether the signals of bone cells in response to mechanical stress are processed and interpreted in the brain. In this study, we found that the hypothalamus of the brain regulates bone remodeling and structure by perceiving bone PGE2 concentration in response to mechanical loading. Bone PGE2 levels are in proportion to their weight bearing. When weight bearing changes in the tail-suspension mice, the PGE2 concentrations in bones change in line with their weight bearing changes. Deletion of Cox2 or Pge2 in the osteoblast lineage cells or knockout Ep4 in sensory nerve blunts bone formation in response to mechanical loading. And sensory denervation also significantly reduces mechanical load-induced bone formation. Moreover, mechanical loading induces CREB phosphorylation in the hypothalamic ARC region to inhibit sympathetic TH expression in the PVN for osteogenesis. Finally, we show that elevated PGE2 is associated with ankle osteoarthritis (AOA) and pain. Together, our data demonstrate that in response to mechanical loading, skeletal interoception occurs in the form of hypothalamic processing of PGE2-driven peripheral signaling to maintain physiologic bone homeostasis, while chronically elevated PGE2 can be sensed as pain during AOA and implication of potential treatment.
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Affiliation(s)
- Feng Gao
- Department of Orthopedic Surgery and Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
| | - Qimiao Hu
- Department of Orthopedic Surgery and Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
| | - Cheng Qi
- Department of Orthopedic Surgery and Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
| | - Mei Wan
- Department of Orthopedic Surgery and Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
| | - James Ficke
- Department of Orthopedic Surgery and Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
| | - Junying Zheng
- Department of Orthopedic Surgery and Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
| | - Xu Cao
- Department of Orthopedic Surgery and Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
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29
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Xiao Y, Han C, Wang Y, Zhang X, Bao R, Li Y, Chen H, Hu B, Liu S. Interoceptive regulation of skeletal tissue homeostasis and repair. Bone Res 2023; 11:48. [PMID: 37669953 PMCID: PMC10480189 DOI: 10.1038/s41413-023-00285-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 05/08/2023] [Accepted: 06/22/2023] [Indexed: 09/07/2023] Open
Abstract
Recent studies have determined that the nervous system can sense and respond to signals from skeletal tissue, a process known as skeletal interoception, which is crucial for maintaining bone homeostasis. The hypothalamus, located in the central nervous system (CNS), plays a key role in processing interoceptive signals and regulating bone homeostasis through the autonomic nervous system, neuropeptide release, and neuroendocrine mechanisms. These mechanisms control the differentiation of mesenchymal stem cells into osteoblasts (OBs), the activation of osteoclasts (OCs), and the functional activities of bone cells. Sensory nerves extensively innervate skeletal tissues, facilitating the transmission of interoceptive signals to the CNS. This review provides a comprehensive overview of current research on the generation and coordination of skeletal interoceptive signals by the CNS to maintain bone homeostasis and their potential role in pathological conditions. The findings expand our understanding of intersystem communication in bone biology and may have implications for developing novel therapeutic strategies for bone diseases.
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Affiliation(s)
- Yao Xiao
- Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, 600 Yishan Rd, Shanghai, 200233, PR China
| | - Changhao Han
- Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, 600 Yishan Rd, Shanghai, 200233, PR China
| | - Yunhao Wang
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, PR China
| | - Xinshu Zhang
- Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, 600 Yishan Rd, Shanghai, 200233, PR China
| | - Rong Bao
- Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, 600 Yishan Rd, Shanghai, 200233, PR China
| | - Yuange Li
- Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, 600 Yishan Rd, Shanghai, 200233, PR China
| | - Huajiang Chen
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, PR China
| | - Bo Hu
- Spine Center, Department of Orthopedics, Changzheng Hospital, Naval Medical University, Shanghai, 200003, PR China.
| | - Shen Liu
- Department of Orthopaedics, Shanghai Jiao Tong University School of Medicine Affiliated Sixth People's Hospital, 600 Yishan Rd, Shanghai, 200233, PR China.
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30
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Liu W, Chen W, Xie M, Chen C, Shao Z, Zhang Y, Zhao H, Song Q, Hu H, Xing X, Cai X, Deng X, Li X, Wang P, Liu G, Xiong L, Lv X, Zhang Y. Traumatic brain injury stimulates sympathetic tone-mediated bone marrow myelopoiesis to favor fracture healing. Signal Transduct Target Ther 2023; 8:260. [PMID: 37402714 DOI: 10.1038/s41392-023-01457-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 04/08/2023] [Accepted: 04/25/2023] [Indexed: 07/06/2023] Open
Abstract
Traumatic brain injury (TBI) accelerates fracture healing, but the underlying mechanism remains largely unknown. Accumulating evidence indicates that the central nervous system (CNS) plays a pivotal role in regulating immune system and skeletal homeostasis. However, the impact of CNS injury on hematopoiesis commitment was overlooked. Here, we found that the dramatically elevated sympathetic tone accompanied with TBI-accelerated fracture healing; chemical sympathectomy blocks TBI-induced fracture healing. TBI-induced hypersensitivity of adrenergic signaling promotes the proliferation of bone marrow hematopoietic stem cells (HSCs) and swiftly skews HSCs toward anti-inflammation myeloid cells within 14 days, which favor fracture healing. Knockout of β3- or β2-adrenergic receptor (AR) eliminate TBI-mediated anti-inflammation macrophage expansion and TBI-accelerated fracture healing. RNA sequencing of bone marrow cells revealed that Adrb2 and Adrb3 maintain proliferation and commitment of immune cells. Importantly, flow cytometry confirmed that deletion of β2-AR inhibits M2 polarization of macrophages at 7th day and 14th day; and TBI-induced HSCs proliferation was impaired in β3-AR knockout mice. Moreover, β3- and β2-AR agonists synergistically promote infiltration of M2 macrophages in callus and accelerate bone healing process. Thus, we conclude that TBI accelerates bone formation during early stage of fracture healing process by shaping the anti-inflammation environment in the bone marrow. These results implicate that the adrenergic signals could serve as potential targets for fracture management.
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Affiliation(s)
- Weijian Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Wei Chen
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Mao Xie
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chao Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zengwu Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yiran Zhang
- School of Medicine, Nankai University, Tianjin, 300071, China
| | - Haiyue Zhao
- School of Medicine, Nankai University, Tianjin, 300071, China
| | - Qingcheng Song
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
- Animal Center of Hebei Ex & In vivo Biotechnology, Shijiazhuang, 050051, China
| | - Hongzhi Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Xin Xing
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Xianyi Cai
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiangtian Deng
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
- NHC Key Laboratory of Intelligent Orthopeadic Equipment, Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China
| | - Xinyan Li
- Department of Physiology, School of Basic Medicine and Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Peng Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Guohui Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Liming Xiong
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Xiao Lv
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Yingze Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
- Department of Orthopaedic Surgery, The Third Hospital of Hebei Medical University, Shijiazhuang, 050051, China.
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31
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Guo Q, Chen N, Qian C, Qi C, Noller K, Wan M, Liu X, Zhang W, Cahan P, Cao X. Sympathetic Innervation Regulates Osteocyte-Mediated Cortical Bone Resorption during Lactation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207602. [PMID: 37186379 PMCID: PMC10288263 DOI: 10.1002/advs.202207602] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/13/2023] [Indexed: 05/17/2023]
Abstract
Bone undergoes constant remodeling by osteoclast bone resorption coupled with osteoblast bone formation at the bone surface. A third major cell type in the bone is osteocytes, which are embedded in the matrix, are well-connected to the lacunar network, and are believed to act as mechanical sensors. Here, it is reported that sympathetic innervation directly regulates lacunar osteocyte-mediated bone resorption inside cortical bone. It is found that sympathetic activity is elevated in different mouse models of bone loss, including lactation, ovariectomy, and glucocorticoid treatment. Further, during lactation elevated sympathetic outflow induces netrin-1 expression by osteocytes to further promote sympathetic nerve sprouting in the cortical bone endosteum in a feed-forward loop. Depletion of tyrosine hydroxylase-positive (TH+ ) sympathetic nerves ameliorated osteocyte-mediated perilacunar bone resorption in lactating mice. Moreover, norepinephrine activates β-adrenergic receptor 2 (Adrb2) signaling to promote secretion of extracellular vesicles (EVs) containing bone-degrading enzymes for perilacunar bone resorption and inhibit osteoblast differentiation. Importantly, osteocyte-specific deletion of Adrb2 or treatment with a β-blocker results in lower bone resorption in lactating mice. Together, these findings show that the sympathetic nervous system promotes osteocyte-driven bone loss during lactation, likely as an adaptive response to the increased energy and mineral demands of the nursing mother.
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Affiliation(s)
- Qiaoyue Guo
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Ningrong Chen
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Cheng Qian
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Cheng Qi
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Department of Biomedical EngineeringJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Kathleen Noller
- Department of Biomedical EngineeringJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Mei Wan
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Xiaonan Liu
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Weixin Zhang
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Patrick Cahan
- Department of Biomedical EngineeringJohns Hopkins University School of MedicineBaltimoreMD21205USA
| | - Xu Cao
- Department of Orthopedic SurgeryJohns Hopkins University School of MedicineBaltimoreMD21205USA
- Department of Biomedical EngineeringJohns Hopkins University School of MedicineBaltimoreMD21205USA
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32
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Kong L, Zhao H, Wang F, Zhang R, Yao X, Zuo R, Li J, Xu J, Qian Y, Kang Q, Fan C. Endocrine modulation of brain-skeleton axis driven by neural stem cell-derived perilipin 5 in the lipid metabolism homeostasis for bone regeneration. Mol Ther 2023; 31:1293-1312. [PMID: 36760127 PMCID: PMC10188646 DOI: 10.1016/j.ymthe.2023.02.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 12/30/2022] [Accepted: 02/02/2023] [Indexed: 02/11/2023] Open
Abstract
Factors released from the nervous system always play crucial roles in modulating bone metabolism and regeneration. How the brain-driven endocrine axes maintain bone homeostasis, especially under metabolic disorders, remains obscure. Here, we found that neural stem cells (NSCs) residing in the subventricular zone participated in lipid metabolism homeostasis of regenerative bone through exosomal perilipin 5 (PLIN5). Fluorescence-labeled exosomes tracing and histological detection identified that NSC-derived exosomes (NSC-Exo) could travel from the lateral ventricle into bone injury sites. Homocysteine (Hcy) led to osteogenic and angiogenic impairment, whereas the NSC-Exo were confirmed to restore it. Mecobalamin, a clinically used neurotrophic drug, further enhanced the protective effects of NSC-Exo through increased PLIN5 expression. Mechanistically, NSC-derived PLIN5 reversed excessive Hcy-induced lipid metabolic imbalance and aberrant lipid droplet accumulation through lipophagy-dependent intracellular lipolysis. Intracerebroventricular administration of mecobalamin and/or AAV-shPlin5 confirmed the effects of PLIN5-driven endocrine modulations on new bone formation and vascular reconstruction in hyperhomocysteinemic and high-fat diet models. This study uncovered a novel brain-skeleton axis that NSCs in the mammalian brain modulated bone regeneration through PLIN5-driven lipid metabolism modulation, providing evidence for lipid- or bone-targeted medicine development.
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Affiliation(s)
- Lingchi Kong
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 201306, PR China; Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China
| | - Haoyu Zhao
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China
| | - Feng Wang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China
| | - Rui Zhang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China
| | - Xiangyun Yao
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 201306, PR China; Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China
| | - Rongtai Zuo
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China
| | - Juehong Li
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 201306, PR China; Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China
| | - Jia Xu
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China
| | - Yun Qian
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 201306, PR China; Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China.
| | - Qinglin Kang
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China.
| | - Cunyi Fan
- Department of Orthopedics, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China; Shanghai Engineering Research Center for Orthopaedic Material Innovation and Tissue Regeneration, Shanghai 201306, PR China; Youth Science and Technology Innovation Studio of Shanghai Jiao Tong University School of Medicine, Shanghai 200233, PR China.
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Zhang Z, Yang L, Li Y, Sun D, Chen R, Dou S, Liu T, Zhang S, Zhou Q, Xie L. Interference of sympathetic overactivation restores limbal stem/progenitor cells function and accelerates corneal epithelial wound healing in diabetic mice. Biomed Pharmacother 2023; 161:114523. [PMID: 36931034 DOI: 10.1016/j.biopha.2023.114523] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 02/28/2023] [Accepted: 03/10/2023] [Indexed: 03/17/2023] Open
Abstract
Diabetic keratopathy (DK), the diabetic complication in the cornea, is characterized by the delayed epithelial regeneration and sensory nerve degeneration. The involvement of limbal stem/progenitor cells (LSPCs) dysfunction has been reported, however the pathogenic mechanisms remain unclear. Here, we confirmed the dysfunction of LSPCs in diabetic mouse and human corneas. The sympathetic nerve in the cornea was adjacent to LSPCs, and the sympathetic overactivation was found in diabetic mice. Surgical and pharmacological ablation of sympathetic nerves rescued the LSPCs function and promoted corneal epithelial regeneration in diabetic mice. In contrast, both topical norepinephrine (NE) application and chemogenetic sympathetic overactivation directly impaired the stemness and proliferation characteristics of LSPCs, as well as the normal epithelial regeneration. Moreover, we identified that β2-adrenoceptor (Adrb2) was the predominant adrenergic receptor expressed in LSPCs by corneal limbal single-cell sequencing and real time PCR (RT-PCR) analysis of sorted LSPCs. The Adrb2 knockout mice exhibited the enhancement of epithelial regeneration and LSPCs function, compared with the wild-type mice. Similarly, topical application of the Adrb2 specific antagonist ICI 118, 551 effectively accelerated diabetic corneal epithelial regeneration with the restored LSPCs function. Mechanistically, sonic hedgehog (Shh) activity mediated the downstream effects of NE-Adrb2 signaling pathway in regulating LSPCs and epithelial regeneration. Taken together, our data revealed the involvement of sympathetic overactivation in the impairment of diabetic LSPCs function and corneal epithelial regeneration through the NE-Adrb2-Shh signaling pathway. The interference of sympathetic overactivation may provide novel treatment strategies for diabetic keratopathy.
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Affiliation(s)
- Zhenzhen Zhang
- Medical College of Qingdao University, Qingdao, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Lingling Yang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Ya Li
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Di Sun
- School of Ophthalmology, Shandong First Medical University, Jinan, China
| | - Rong Chen
- School of Ophthalmology, Shandong First Medical University, Jinan, China
| | - Shengqian Dou
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Ting Liu
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China
| | - Sai Zhang
- School of Ophthalmology, Shandong First Medical University, Jinan, China
| | - Qingjun Zhou
- Medical College of Qingdao University, Qingdao, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China; School of Ophthalmology, Shandong First Medical University, Jinan, China.
| | - Lixin Xie
- Medical College of Qingdao University, Qingdao, China; State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Eye Institute of Shandong First Medical University, Qingdao, China; School of Ophthalmology, Shandong First Medical University, Jinan, China.
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Zhao D, Wu J, Acosta FM, Xu H, Jiang JX. Connexin 43 hemichannels and prostaglandin E 2 release in anabolic function of the skeletal tissue to mechanical stimulation. Front Cell Dev Biol 2023; 11:1151838. [PMID: 37123401 PMCID: PMC10133519 DOI: 10.3389/fcell.2023.1151838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 04/05/2023] [Indexed: 05/02/2023] Open
Abstract
Bone adapts to changes in the physical environment by modulating remodeling through bone resorption and formation to maintain optimal bone mass. As the most abundant connexin subtype in bone tissue, connexin 43 (Cx43)-forming hemichannels are highly responsive to mechanical stimulation by permitting the exchange of small molecules (<1.2 kDa) between bone cells and the extracellular environment. Upon mechanical stimulation, Cx43 hemichannels facilitate the release of prostaglandins E2 (PGE2), a vital bone anabolic factor from osteocytes. Although most bone cells are involved in mechanosensing, osteocytes are the principal mechanosensitive cells, and PGE2 biosynthesis is greatly enhanced by mechanical stimulation. Mechanical stimulation-induced PGE2 released from osteocytic Cx43 hemichannels acts as autocrine effects that promote β-catenin nuclear accumulation, Cx43 expression, gap junction function, and protects osteocytes against glucocorticoid-induced osteoporosis in cultured osteocytes. In vivo, Cx43 hemichannels with PGE2 release promote bone formation and anabolism in response to mechanical loading. This review summarizes current in vitro and in vivo understanding of Cx43 hemichannels and extracellular PGE2 release, and their roles in bone function and mechanical responses. Cx43 hemichannels could be a significant potential new therapeutic target for treating bone loss and osteoporosis.
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Affiliation(s)
- Dezhi Zhao
- School of Medicine, Northwest University, Xi’an, China
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX, United States
- School of Life Sciences, Northwestern Polytechnical University, Xi’an, China
| | - Jiawei Wu
- School of Medicine, Northwest University, Xi’an, China
| | - Francisca M. Acosta
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX, United States
| | - Huiyun Xu
- School of Life Sciences, Northwestern Polytechnical University, Xi’an, China
| | - Jean X. Jiang
- Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX, United States
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35
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Liu X, Gu Y, Kumar S, Amin S, Guo Q, Wang J, Fang CL, Cao X, Wan M. Oxylipin-PPARγ-initiated adipocyte senescence propagates secondary senescence in the bone marrow. Cell Metab 2023; 35:667-684.e6. [PMID: 37019080 PMCID: PMC10127143 DOI: 10.1016/j.cmet.2023.03.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 01/12/2023] [Accepted: 03/06/2023] [Indexed: 04/07/2023]
Abstract
The chronic use of glucocorticoids decreases bone mass and quality and increases bone-marrow adiposity, but the underlying mechanisms remain unclear. Here, we show that bone-marrow adipocyte (BMAd) lineage cells in adult mice undergo rapid cellular senescence upon glucocorticoid treatment. The senescent BMAds acquire a senescence-associated secretory phenotype, which spreads senescence in bone and bone marrow. Mechanistically, glucocorticoids increase the synthesis of oxylipins, such as 15d-PGJ2, for peroxisome proliferator-activated receptor gamma (PPARγ) activation. PPARγ stimulates the expression of key senescence genes and also promotes oxylipin synthesis in BMAds, forming a positive feedback loop. Transplanting senescent BMAds into the bone marrow of healthy mice is sufficient to induce the secondary spread of senescent cells and bone-loss phenotypes, whereas transplanting BMAds harboring a p16INK4a deletion did not show such effects. Thus, glucocorticoid treatment induces a lipid metabolic circuit that robustly triggers the senescence of BMAd lineage cells that, in turn, act as the mediators of glucocorticoid-induced bone deterioration.
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Affiliation(s)
- Xiaonan Liu
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Yiru Gu
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Surendra Kumar
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Sahran Amin
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Qiaoyue Guo
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Jiekang Wang
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Ching-Lien Fang
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Xu Cao
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Mei Wan
- Department of Orthopaedic Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
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36
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Zhang Z, Wang F, Huang X, Sun H, Xu J, Qu H, Yan X, Shi W, Teng W, Jin X, Shao Z, Zhang Y, Zhao S, Wu Y, Ye Z, Yu X. Engineered Sensory Nerve Guides Self-Adaptive Bone Healing via NGF-TrkA Signaling Pathway. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2206155. [PMID: 36725311 PMCID: PMC10074090 DOI: 10.1002/advs.202206155] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/10/2023] [Indexed: 06/17/2023]
Abstract
The upstream role of sensory innervation during bone homeostasis is widely underestimated in bone repairing strategies. Herein, a neuromodulation approach is proposed to orchestrate bone defect healing by constructing engineered sensory nerves (eSN) in situ to leverage the adaptation feature of SN during tissue formation. NGF liberated from ECM-constructed eSN effectively promotes sensory neuron differentiation and enhances CGRP secretion, which lead to improved RAOECs mobility and osteogenic differentiation of BMSC. In turn, such eSN effectively drives ossification in vivo via NGF-TrkA signaling pathway, which substantially accelerates critical size bone defect healing. More importantly, eSN also adaptively suppresses excessive bone formation and promotes bone remodeling by activating osteoclasts via CGRP-dependent mechanism when combined with BMP-2 delivery, which ingeniously alleviates side effects of BMP-2. In sum, this eSN approach offers a valuable avenue to harness the adaptive role of neural system to optimize bone homeostasis under various clinical scenario.
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Affiliation(s)
- Zengjie Zhang
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Fangqian Wang
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Xin Huang
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Hangxiang Sun
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Jianxiang Xu
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Hao Qu
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Xiaobo Yan
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Wei Shi
- Department of OrthopedicTaizhou First People's HospitalWenzhou Medical University218 Hengjie Road, Huangyan DistrictTaizhou CityZhejiang Province318020P. R. China
| | - Wangsiyuan Teng
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Xiaoqiang Jin
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Zhenxuan Shao
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Yongxing Zhang
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Shenzhi Zhao
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Yan Wu
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Zhaoming Ye
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
| | - Xiaohua Yu
- Department of Orthopedic SurgeryThe Second Affiliated HospitalZhejiang University School of MedicineOrthopedics Research Institute of Zhejiang UniversityKey Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province88 Jiefang RoadHangzhou CityZhejiang Province310003P. R. China
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Utagawa K, Shin T, Yamada H, Ochi H, Sunamura S, Unno A, Akazawa C, Ema M, Takeda S, Okawa A, Sato S. Three-dimensional visualization of neural networks inside bone by Osteo-DISCO protocol and alteration of bone remodeling by surgical nerve ablation. Sci Rep 2023; 13:4674. [PMID: 36949102 PMCID: PMC10033912 DOI: 10.1038/s41598-023-30492-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 02/24/2023] [Indexed: 03/24/2023] Open
Abstract
Bone is one of the largest organ systems in humans and is considered to regulate whole-body homeostasis in cooperation with other organs. We have previously reported that a sympathetic or sensory nervous system inside bone regulates bone homeostasis. However, the detailed regulatory mechanism, including the distribution of nerves inside bone, remains unknown. Although a two-dimensional histological analysis has been widely used to evaluate the structure of nerves or blood vessels, the actual structure is more complex, suggesting that it should be evaluated three-dimensionally. Here, we established a novel bone tissue clearing technique (Osteo-DISCO) for murine bones which enabled us to visualize the detailed distribution of nerves or blood vessels inside bone. Interestingly, we found that there is a specific nerve entry site in each long bone and that surgical ablation of the specific nerve fibers entering bone tissue led to decreased bone formation and impaired bone regeneration. Furthermore, we revealed that the administration of calcitonin gene-related peptide (CGRP), which is primarily released from sensory nerves, suppressed the bone loss caused by surgical nerve ablation. An in vitro study also indicated that CGRP directly promotes osteoblast activity, suggesting that sensory nerves inside bone can regulate osteogenesis via the secretion of CGRP.
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Affiliation(s)
- Kurando Utagawa
- Department of Orthopaedic Surgery, Graduate School, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Takaei Shin
- Faculty of Medicine, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8519, Japan
- Japanese Red Cross Ishinomaki Hospital, Miyagi, 986-8522, Japan
| | - Hironori Yamada
- Department of Family Medicine, Graduate School, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8519, Japan
| | - Hiroki Ochi
- Department of Rehabilitation for Motor Functions, Research Institute, National Rehabilitation Center for Persons with Disabilities, Tokorozawa, Saitama, 359-8555, Japan
| | - Satoko Sunamura
- Department of Orthopaedic Surgery, Graduate School, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Aiko Unno
- Department of Orthopaedic Surgery, Graduate School, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Chihiro Akazawa
- Intractable Disease Research Center, Juntendo University School of Medicine, Tokyo, 113-8421, Japan
- Department of Biochemistry and Biophysics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8510, Japan
| | - Masatsugu Ema
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Shiga, 520-2192, Japan
| | - Shu Takeda
- Division of Endocrinology, Toranomon Hospital Endocrine Center, Tokyo, 105-8470, Japan
| | - Atsushi Okawa
- Department of Orthopaedic Surgery, Graduate School, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan
| | - Shingo Sato
- Department of Orthopaedic Surgery, Graduate School, Tokyo Medical and Dental University (TMDU), 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8519, Japan.
- Center for Innovative Cancer Treatment, Tokyo Medical and Dental University (TMDU), Tokyo, 113-8519, Japan.
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38
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Xia C, Zhu H, Li J, Jin H, Fu D. Network pharmacology-based mechanism prediction and pharmacological validation of Bushenhuoxue formula attenuating postmenopausal osteoporosis in ovariectomized mice. J Orthop Surg Res 2023; 18:200. [PMID: 36918900 PMCID: PMC10012505 DOI: 10.1186/s13018-023-03696-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/09/2023] [Indexed: 03/16/2023] Open
Abstract
BACKGROUND Bushenhuoxue (BSHX) formula, a ten-compound herbal decoction, is widely used to treat postmenopausal osteoporosis (PMOP) in China. However, the mechanism is not clear yet. METHODS The underlying biological processes and signaling pathways were predicted by network pharmacology. In vivo experimental study, 24 female C57BL/6 J mice were randomly divided into sham, ovariectomized (OVX) and BSHX formula groups. Mice in the latter two groups were subjected to bilateral ovariectomy, and mice in the BSHX formula group were extra treated by BSHX formula at an oral dosage of 0.2 mL/10 g for 8 weeks. The femur samples were harvested for tissue analyses including μCT assay, histology and immunohistochemical (IHC) staining of VEGF signaling. RESULTS A total of 218 active ingredients and 274 related targets were identified in BSHX formula. After matching with 292 targets of PMOP, 64 overlapping genes were obtained. GO and KEGG enrichment analyses on these 64 genes revealed that angiogenesis and VEGF signaling were considered as the potential therapeutic mechanism of BSHX formula against PMOP. Animal experiments showed that mice in the BSHX formula-treated group presented increased bone mass, microstructural parameters, blood vessel numbers and an activation of VEGF signaling (VEGF, COX2, eNOS and CD31) compared to the OVX mice. CONCLUSION This study revealed that BSHX formula exerts anti-PMOP effects possibly through activating VEGF signaling-mediated angiogenesis.
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Affiliation(s)
- Chenjie Xia
- Department of Orthopedic Surgery, Li Huili Hospital Affiliated to Ningbo University, Ningbo, 315048, People's Republic of China
| | - Haowei Zhu
- Department of Orthopedic Surgery, Ningbo Yinzhou No. 2 Hospital, Ningbo, 315199, People's Republic of China
| | - Jin Li
- Department of Orthopedic Surgery, Li Huili Hospital Affiliated to Ningbo University, Ningbo, 315048, People's Republic of China
| | - Hongting Jin
- Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, 310053, People's Republic of China
| | - Danqing Fu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, No. 548, Binwen Road, Hangzhou, 310053, Zhejiang Province, People's Republic of China.
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Pei F, Ma L, Jing J, Feng J, Yuan Y, Guo T, Han X, Ho TV, Lei J, He J, Zhang M, Chen JF, Chai Y. Sensory nerve niche regulates mesenchymal stem cell homeostasis via FGF/mTOR/autophagy axis. Nat Commun 2023; 14:344. [PMID: 36670126 PMCID: PMC9859800 DOI: 10.1038/s41467-023-35977-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 01/10/2023] [Indexed: 01/22/2023] Open
Abstract
Mesenchymal stem cells (MSCs) reside in microenvironments, referred to as niches, which provide structural support and molecular signals. Sensory nerves are niche components in the homeostasis of tissues such as skin, bone marrow and hematopoietic system. However, how the sensory nerve affects the behavior of MSCs remains largely unknown. Here we show that the sensory nerve is vital for mesenchymal tissue homeostasis and maintenance of MSCs in the continuously growing adult mouse incisor. Loss of sensory innervation leads to mesenchymal disorder and a decrease in MSCs. Mechanistically, FGF1 from the sensory nerve directly acts on MSCs by binding to FGFR1 and activates the mTOR/autophagy axis to sustain MSCs. Modulation of mTOR/autophagy restores the MSCs and rescues the mesenchymal tissue disorder of Fgfr1 mutant mice. Collectively, our study provides insights into the role of sensory nerves in the regulation of MSC homeostasis and the mechanism governing it.
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Affiliation(s)
- Fei Pei
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, 430079, Wuhan, China
| | - Li Ma
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
| | - Junjun Jing
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
| | - Jifan Feng
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
| | - Yuan Yuan
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
| | - Tingwei Guo
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
| | - Xia Han
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
| | - Thach-Vu Ho
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
| | - Jie Lei
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
| | - Jinzhi He
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
| | - Mingyi Zhang
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
| | - Jian-Fu Chen
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA
| | - Yang Chai
- Center for Craniofacial Molecular Biology, University of Southern California, 2250 Alcazar Street, CSA 103, Los Angeles, CA, 90033, USA.
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Magnetic Nanomaterials Mediate Electromagnetic Stimulations of Nerves for Applications in Stem Cell and Cancer Treatments. J Funct Biomater 2023; 14:jfb14020058. [PMID: 36826857 PMCID: PMC9960824 DOI: 10.3390/jfb14020058] [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: 11/27/2022] [Revised: 01/11/2023] [Accepted: 01/18/2023] [Indexed: 01/22/2023] Open
Abstract
Although some progress has been made in the treatment of cancer, challenges remain. In recent years, advancements in nanotechnology and stem cell therapy have provided new approaches for use in regenerative medicine and cancer treatment. Among them, magnetic nanomaterials have attracted widespread attention in the field of regenerative medicine and cancer; this is because they have high levels of safety and low levels of invasibility, promote stem cell differentiation, and affect biological nerve signals. In contrast to pure magnetic stimulation, magnetic nanomaterials can act as amplifiers of an applied electromagnetic field in vivo, and by generating different effects (thermal, electrical, magnetic, mechanical, etc.), the corresponding ion channels are activated, thus enabling the modulation of neuronal activity with higher levels of precision and local modulation. In this review, first, we focused on the relationship between biological nerve signals and stem cell differentiation, and tumor development. In addition, the effects of magnetic nanomaterials on biological neural signals and the tumor environment were discussed. Finally, we introduced the application of magnetic-nanomaterial-mediated electromagnetic stimulation in regenerative medicine and its potential in the field of cancer therapy.
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Su Y, Zeng L, Deng R, Ye B, Tang S, Xiong Z, Sun T, Ding Q, Su W, Jing X, Gao Q, Wang X, Qiu Z, Chen K, Quan D, Guo X. Endogenous Electric Field-Coupled PD@BP Biomimetic Periosteum Promotes Bone Regeneration through Sensory Nerve via Fanconi Anemia Signaling Pathway. Adv Healthc Mater 2023; 12:e2203027. [PMID: 36652677 DOI: 10.1002/adhm.202203027] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 01/15/2023] [Indexed: 01/20/2023]
Abstract
To treat bone defects, repairing the nerve-rich periosteum is critical for repairing the local electric field. In this study, an endogenous electric field is coupled with 2D black phosphorus electroactive periosteum to explore its role in promoting bone regeneration through nerves. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) are used to characterize the electrically active biomimetic periosteum. Here, the in vitro effects exerted by the electrically active periosteum on the transformation of Schwann cells into the repair phenotype, axon initial segment (AIS) and dense core vesicle (DCV) of sensory neurons, and bone marrow mesenchymal stem cells are assessed using SEM, immunofluorescence, RNA-sequencing, and calcium ion probes. The electrically active periosteum stimulates Schwann cells into a neuroprotective phenotype via the Fanconi anemia pathway, enhances the AIS effect of sensory neurons, regulates DCV transport, and releases neurotransmitters, promoting the osteogenic transformation of bone marrow mesenchymal stem cells. Microcomputed tomography and other in vivo techniques are used to study the effects of the electrically active periosteum on bone regeneration. The results show that the electrically active periosteum promotes nerve-induced osteogenic repair, providing a potential clinical strategy for bone regeneration.
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Affiliation(s)
- Yanlin Su
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Lian Zeng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Rongli Deng
- PCFM Lab, School of Chemistry and School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510000, China
| | - Bing Ye
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Shuo Tang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, 510127, China
| | - Zekang Xiong
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Tingfang Sun
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Qiuyue Ding
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Weijie Su
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Xirui Jing
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Qing Gao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Xiumei Wang
- School of Materials Science and Engineering, Tsinghua University, Beijing, 100000, China
| | - Zhiye Qiu
- Allgens Medical Technology Co., Ltd., Beijing, 100000, China
| | - Kaifang Chen
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
| | - Daping Quan
- PCFM Lab, School of Chemistry and School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong, 510000, China
| | - Xiaodong Guo
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430022, China
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Rubino M, Travers JG, Headrick AL, Enyart BT, Lemieux ME, Cavasin MA, Schwisow JA, Hardy EJ, Kaltenbacher KJ, Felisbino MB, Jonas E, Ambardekar AV, Bristow MR, Koch KA, McKinsey TA. Inhibition of Eicosanoid Degradation Mitigates Fibrosis of the Heart. Circ Res 2023; 132:10-29. [PMID: 36475698 DOI: 10.1161/circresaha.122.321475] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Organ fibrosis due to excessive production of extracellular matrix by resident fibroblasts is estimated to contribute to >45% of deaths in the Western world, including those due to cardiovascular diseases such as heart failure. Here, we screened for small molecule inhibitors with a common ability to suppress activation of fibroblasts across organ systems. METHODS High-content imaging of cultured cardiac, pulmonary, and renal fibroblasts was used to identify nontoxic compounds that blocked induction of markers of activation in response to the profibrotic stimulus, transforming growth factor-β1. SW033291, which inhibits the eicosanoid-degrading enzyme, 15-hydroxyprostaglandin dehydrogenase, was chosen for follow-up studies with cultured adult rat ventricular fibroblasts and human cardiac fibroblasts (CF), and for evaluation in mouse models of cardiac fibrosis and diastolic dysfunction. Additional mechanistic studies were performed with CFs treated with exogenous eicosanoids. RESULTS Nine compounds, including SW033291, shared a common ability to suppress transforming growth factor-β1-mediated activation of cardiac, pulmonary, and renal fibroblasts. SW033291 dose-dependently inhibited transforming growth factor-β1-induced expression of activation markers (eg, α-smooth muscle actin and periostin) in adult rat ventricular fibroblasts and normal human CFs, and reduced contractile capacity of the cells. Remarkably, the 15-hydroxyprostaglandin dehydrogenase inhibitor also reversed constitutive activation of fibroblasts obtained from explanted hearts from patients with heart failure. SW033291 blocked cardiac fibrosis induced by angiotensin II infusion and ameliorated diastolic dysfunction in an alternative model of systemic hypertension driven by combined uninephrectomy and deoxycorticosterone acetate administration. Mechanistically, SW033291-mediated stimulation of extracellular signal-regulated kinase 1/2 mitogen-activated protein kinase signaling was required for the compound to block CF activation. Of the 12 exogenous eicosanoids that were tested, only 12(S)-hydroxyeicosatetraenoic acid, which signals through the G protein-coupled receptor, GPR31, recapitulated the suppressive effects of SW033291 on CF activation. CONCLUSIONS Inhibition of degradation of eicosanoids, arachidonic acid-derived fatty acids that signal through G protein-coupled receptors, is a potential therapeutic strategy for suppression of pathological organ fibrosis. In the heart, we propose that 15-hydroxyprostaglandin dehydrogenase inhibition triggers CF-derived autocrine/paracrine signaling by eicosanoids, including 12(S)-hydroxyeicosatetraenoic acid, to stimulate extracellular signal-regulated kinase 1/2 and block conversion of fibroblasts into activated cells that secrete excessive amounts of extracellular matrix and contribute to heart failure pathogenesis.
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Affiliation(s)
- Marcello Rubino
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Joshua G Travers
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Alaina L Headrick
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Blake T Enyart
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
| | | | - Maria A Cavasin
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Jessica A Schwisow
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Elizabeth J Hardy
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Keenan J Kaltenbacher
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Marina B Felisbino
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Eric Jonas
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Amrut V Ambardekar
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Michael R Bristow
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Keith A Koch
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
| | - Timothy A McKinsey
- From the Department of Medicine, Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., J.A.S., E.J.H., K.J.K., M.B.F., E.J., A.V.A., M.R.B., K.A.K., T.A.M.).,Consortium for Fibrosis Research & Translation, University of Colorado Anschutz Medical Campus, Aurora (M.R., J.G.T., A.L.H., B.T.E., M.A.C., E.J.H., K.J.K., M.B.F., A.V.A., M.R.B., K.A.K., T.A.M.)
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Hallmarks of peripheral nerve function in bone regeneration. Bone Res 2023; 11:6. [PMID: 36599828 PMCID: PMC9813170 DOI: 10.1038/s41413-022-00240-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Revised: 09/27/2022] [Accepted: 11/03/2022] [Indexed: 01/06/2023] Open
Abstract
Skeletal tissue is highly innervated. Although different types of nerves have been recently identified in the bone, the crosstalk between bone and nerves remains unclear. In this review, we outline the role of the peripheral nervous system (PNS) in bone regeneration following injury. We first introduce the conserved role of nerves in tissue regeneration in species ranging from amphibians to mammals. We then present the distribution of the PNS in the skeletal system under physiological conditions, fractures, or regeneration. Furthermore, we summarize the ways in which the PNS communicates with bone-lineage cells, the vasculature, and immune cells in the bone microenvironment. Based on this comprehensive and timely review, we conclude that the PNS regulates bone regeneration through neuropeptides or neurotransmitters and cells in the peripheral nerves. An in-depth understanding of the roles of peripheral nerves in bone regeneration will inform the development of new strategies based on bone-nerve crosstalk in promoting bone repair and regeneration.
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Liu X, Guo Q, Wang L, Gu Y, Meng S, Gu Y, Yu B. Metformin attenuates high-fat diet induced metabolic syndrome related osteoarthritis through inhibition of prostaglandins. Front Cell Dev Biol 2023; 11:1184524. [PMID: 37200628 PMCID: PMC10185907 DOI: 10.3389/fcell.2023.1184524] [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: 03/11/2023] [Accepted: 04/17/2023] [Indexed: 05/20/2023] Open
Abstract
High-fat diet induces bone marrow inflammation and osteoarthritis phenotype in knee joint, but the underlying mechanisms is unknown. Here, we report that high-fat diet induces aberrant bone formation and cartilage degeneration in knee joint. Mechanistically, a high-fat diet increases the number of macrophages and the secretion of prostaglandins in subchondral bone, promoting bone formation. Metformin treatment is able to decrease the number of macrophages and also the level of prostaglandins induced by high-fat diet in subchondral bone. Importantly, metformin rescues aberrant bone formation and cartilage lesions by decreasing the number of osteoprogenitors and type-H vessels, which also results in relief of osteoarthritis pain response. Thus, we demonstrate prostaglandins secreted by macrophages may be a key reason for high-fat diet induced aberrant bone formation and metformin is a promising therapy for high-fat diet induced osteoarthritis.
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Affiliation(s)
- Xiaonan Liu
- Division of Orthopaedics and Traumatology, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qiaoyue Guo
- Department of Endocrinology, Endocrinology Research Center, Xiangya Hospital of Central South University, Changsha, China
- Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, MD, United States
| | - Lei Wang
- Division of Orthopaedics and Traumatology, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yiru Gu
- Bloomberg School of Public Health, The Johns Hopkins University, Baltimore, MD, United States
| | - Senxiong Meng
- Division of Orthopaedics and Traumatology, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yuan Gu
- Division of Orthopaedics and Traumatology, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Bin Yu
- Division of Orthopaedics and Traumatology, Department of Orthopedics, Nanfang Hospital, Southern Medical University, Guangzhou, China
- *Correspondence: Bin Yu,
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Xia Z. Skeletal interoception: an emerging area for musculoskeletal research. BIOMATERIALS TRANSLATIONAL 2022; 3:237-239. [PMID: 36846506 PMCID: PMC9947733 DOI: 10.12336/biomatertransl.2022.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/03/2022] [Accepted: 11/18/2022] [Indexed: 03/01/2023]
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Lv X, Gao F, Cao X. Skeletal interoception in bone homeostasis and pain. Cell Metab 2022; 34:1914-1931. [PMID: 36257317 PMCID: PMC9742337 DOI: 10.1016/j.cmet.2022.09.025] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/07/2022] [Accepted: 09/26/2022] [Indexed: 01/24/2023]
Abstract
Accumulating evidence indicates that interoception maintains proper physiological status and orchestrates metabolic homeostasis by regulating feeding behaviors, glucose balance, and lipid metabolism. Continuous skeletal remodeling consumes a tremendous amount of energy to provide skeletal scaffolding, support muscle movement, store vital minerals, and maintain a niche for hematopoiesis, which are processes that also contribute to overall metabolic balance. Although skeletal innervation has been described for centuries, recent work has shown that skeletal metabolism is tightly regulated by the nervous system and that skeletal interoception regulates bone homeostasis. Here, we provide a general discussion of interoception and its effects on the skeleton and whole-body metabolism. We also discuss skeletal interoception-mediated regulation in the context of pathological conditions and skeletal pain as well as future challenges to our understanding of these process and how they can be leveraged for more effective therapy.
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Affiliation(s)
- Xiao Lv
- Center for Musculoskeletal Research, Department of Orthopaedic Surgery and Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD 21205, USA
| | - Feng Gao
- Center for Musculoskeletal Research, Department of Orthopaedic Surgery and Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD 21205, USA
| | - Xu Cao
- Center for Musculoskeletal Research, Department of Orthopaedic Surgery and Department of Biomedical Engineering, The Johns Hopkins University, Baltimore, MD 21205, USA.
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Su Y, Gao Q, Deng R, Zeng L, Guo J, Ye B, Yu J, Guo X. Aptamer engineering exosomes loaded on biomimetic periosteum to promote angiogenesis and bone regeneration by targeting injured nerves via JNK3 MAPK pathway. Mater Today Bio 2022; 16:100434. [PMID: 36186848 PMCID: PMC9519612 DOI: 10.1016/j.mtbio.2022.100434] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 09/12/2022] [Accepted: 09/14/2022] [Indexed: 12/04/2022] Open
Abstract
Repairing critical bone defects is a complex problem in the clinic. The periosteum rich in nerve plays a vital role in initiating and regulating bone regeneration. However, current studies have paid little attention to repairing nerves in the periosteum to promote bone regeneration. Thus, it is essential to construct bionic periosteum with the targeted injured nerves in the periosteum. We coupled phosphatidylserine (PS) targeted aptamers with repair Schwann cell exosomes to construct exosome@aptamer (EA). Then through PEI, EA was successfully built on the surface of the electrospun fiber, which was PCL@PEI@exosome@aptamer (PPEA). Through SEM, TEM, and other technologies, PPEA was characterized. Experiments prove in vivo and in vitro that it has an excellent repair effect on damaged nerves and regeneration of vascular and bones. In vivo, we confirmed that biomimetic periosteum has an apparent ability to promote nerve and bone regeneration by using Microcomputer tomography, hematoxylin-eosin, Masson, and Immunofluorescence. In vitro, we used Immunofluorescence, Real-Time Quantitative PCR, Alkaline phosphatase staining, and other tests to confirm that it has central nerve, blood vessel, and bone regeneration ability. The PPEA biomimetic periosteum has apparent neurogenic, angiogenic, and osteogenic effects. The PPEA biomimetic periosteum will provide a promising method for treating bone defects. To construct a biomimetic periosteum that can target injured axons and bone regeneration. PS targeted aptamer is coupled with repair Schwann cell exosomes. PEI self-assembly was used for the PCL electrospun biomimetic membrane loading. It targeted and repaired the injured axons and promoted the secretion of CGRP and SP. Biomimetic periosteum promotes vascular regeneration and bone regeneration.
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Affiliation(s)
- Yanlin Su
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Qing Gao
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Rongli Deng
- PCFM Lab, School of Chemistry and School of Materials Science and Engineering, Sun Yat-sen University, Guangzhou, Guangdong 510000, China
| | - Lian Zeng
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Jingyi Guo
- College of Arts and Science of Hubei Normal University, Huangshi, Hubei 430022, China
| | - Bing Ye
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Jialin Yu
- The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei 430022, China
| | - Xiaodong Guo
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
- Corresponding author.
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Jing J, Zhang M, Guo T, Pei F, Yang Y, Chai Y. Rodent incisor as a model to study mesenchymal stem cells in tissue homeostasis and repair. FRONTIERS IN DENTAL MEDICINE 2022. [DOI: 10.3389/fdmed.2022.1068494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
The homeostasis of adult tissues, such as skin, hair, blood, and bone, requires continuous generation of differentiated progeny of stem cells. The rodent incisor undergoes constant renewal and can provide an extraordinary model for studying stem cells and their progeny in adult tissue homeostasis, cell differentiation and injury-induced regeneration. Meanwhile, cellular heterogeneity in the mouse incisor also provides an opportunity to study cell-cell communication between different cell types, including interactions between stem cells and their niche environment. More importantly, the molecular and cellular regulatory mechanisms revealed by the mouse incisor have broad implications for other organs. Here we review recent findings and advances using the mouse incisor as a model, including perspectives on the heterogeneity of cells in the mesenchyme, the niche environment, and signaling networks that regulate stem cell behavior. The progress from this field will not only expand the knowledge of stem cells and organogenesis, but also bridge a gap between animal models and tissue regeneration.
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Hu B, Lv X, Wei L, Wang Y, Zheng G, Yang C, Zang F, Wang J, Li J, Wu X, Yue Z, Xiao Q, Shao Z, Yuan W, Li J, Cao P, Xu C, Chen H. Sensory Nerve Maintains Intervertebral Disc Extracellular Matrix Homeostasis Via CGRP/CHSY1 Axis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2202620. [PMID: 36047655 PMCID: PMC9596848 DOI: 10.1002/advs.202202620] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/22/2022] [Indexed: 06/01/2023]
Abstract
Sensory nerves are long being recognized as collecting units of various outer stimuli; recent advances indicate that the sensory nerve also plays pivotal roles in maintaining organ homeostasis. Here, this study shows that sensory nerve orchestrates intervertebral disc (IVD) homeostasis by regulating its extracellular matrix (ECM) metabolism. Specifically, genetical sensory denervation of IVD results in loss of IVD water preserve molecule chondroitin sulfate (CS), the reduction of CS bio-synthesis gene chondroitin sulfate synthase 1 (CHSY1) expression, and dysregulated ECM homeostasis of IVD. Particularly, knockdown of sensory neuros calcitonin gene-related peptide (CGRP) expression induces similar ECM metabolic disorder compared to sensory nerve denervation model, and this effect is abolished in CHSY1 knockout mice. Furthermore, in vitro evidence shows that CGRP regulates nucleus pulposus cell CHSY1 expression and CS synthesis via CGRP receptor component receptor activity-modifying protein 1 (RAMP1) and cyclic AMP response element-binding protein (CREB) signaling. Therapeutically, local injection of forskolin significantly attenuates IVD degeneration progression in mouse annulus fibrosus puncture model. Overall, these results indicate that sensory nerve maintains IVD ECM homeostasis via CGRP/CHSY1 axis and promotes IVD repair, and this expands the understanding concerning how IVD links to sensory nerve system, thus shedding light on future development of novel therapeutical strategy to IVD degeneration.
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Affiliation(s)
- Bo Hu
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Xiao Lv
- Department of OrthopaedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
| | - Leixin Wei
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Yunhao Wang
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Genjiang Zheng
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Chen Yang
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Fazhi Zang
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Jianxi Wang
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Jing Li
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Xiaodong Wu
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Zhihao Yue
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Qiangqiang Xiao
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Zengwu Shao
- Department of OrthopaedicsUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan430022China
| | - Wen Yuan
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Jinsong Li
- State Key Laboratory of Cell BiologyShanghai Key Laboratory of Molecular AndrologyCAS Center for Excellence in Molecular Cell ScienceInstitute of Biochemistry and Cell BiologyChinese Academy of ScienceShanghai200031China
| | - Peng Cao
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Chen Xu
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
| | - Huajiang Chen
- Spine CenterDepartment of OrthopedicsChangzheng HospitalNaval Medical UniversityShanghai200003China
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Sun Q, Zhang Y, Ding Y, Xie W, Li H, Li S, Li Y, Cai M. Inhibition of PGE2 in Subchondral Bone Attenuates Osteoarthritis. Cells 2022; 11:cells11172760. [PMID: 36078169 PMCID: PMC9454853 DOI: 10.3390/cells11172760] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/26/2022] [Accepted: 08/30/2022] [Indexed: 11/17/2022] Open
Abstract
Aberrant subchondral bone architecture is a crucial driver of the pathological progression of osteoarthritis, coupled with increased sensory innervation. The sensory PGE2/EP4 pathway is involved in the regulation of bone mass accrual by the induction of differentiation of mesenchymal stromal cells. This study aimed to clarify whether the sensory PGE2/EP4 pathway induces aberrant structural alteration of subchondral bone in osteoarthritis. Destabilization of the medial meniscus (DMM) using a mouse model was combined with three approaches: the treatment of celecoxib, capsaicin, and sensory nerve-specific prostaglandin E2 receptor 4 (EP4)-knockout mice. Cartilage degeneration, subchondral bone architecture, PGE2 levels, distribution of sensory nerves, the number of osteoprogenitors, and pain-related behavior in DMM mice were assessed. Serum and tissue PGE2 levels and subchondral bone architecture in a human sample were measured. Increased PGE2 is closely related to subchondral bone’s abnormal microstructure in humans and mice. Elevated PGE2 concentration in subchondral bone that is mainly derived from osteoblasts occurs in early-stage osteoarthritis, preceding articular cartilage degeneration in mice. The decreased PGE2 levels by the celecoxib or sensory denervation by capsaicin attenuate the aberrant alteration of subchondral bone architecture, joint degeneration, and pain. Selective EP4 receptor knockout of the sensory nerve attenuates the aberrant formation of subchondral bone and facilitates the prevention of cartilage degeneration in DMM mice. Excessive PGE2 in subchondral bone caused a pathological alteration to subchondral bone in osteoarthritis and maintaining the physiological level of PGE2 could potentially be used as an osteoarthritis treatment.
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Affiliation(s)
- Qi Sun
- Department of Orthopaedics, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Yuanzhen Zhang
- Department of Orthopaedics, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Yilan Ding
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Wenqing Xie
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Hengzhen Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Shaohua Li
- Department of Orthopaedics, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072, China
| | - Yusheng Li
- Department of Orthopedics, Xiangya Hospital, Central South University, Changsha 410008, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
- Correspondence: (Y.L.); (M.C.); Tel.: +86-13975889696 (Y.L.); +86-13816147208 (M.C.); Fax: +86-073184327332 (Y.L.); +86-010-59367999 (M.C.)
| | - Ming Cai
- Department of Orthopaedics, Shanghai Tenth People’s Hospital, School of Medicine, Tongji University, Shanghai 200072, China
- Correspondence: (Y.L.); (M.C.); Tel.: +86-13975889696 (Y.L.); +86-13816147208 (M.C.); Fax: +86-073184327332 (Y.L.); +86-010-59367999 (M.C.)
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