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Godde K, Courtney MG, Roberts J. Psychological Disorders Linked to Osteoporosis Diagnoses in a Population-Based Cohort Study of Middle and Older Age United States Adults. THE GERONTOLOGIST 2024; 64:gnae027. [PMID: 38502876 PMCID: PMC11132295 DOI: 10.1093/geront/gnae027] [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] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Although it is well established that psychological disorders and osteoporosis risk are linked, how the relationship manifests is not. This study examines depressive symptoms and a history of psychological problems as potential risk factors for osteoporosis diagnosis, adjudicating between 4 theoretical models rarely tested together. We analyze these models across multiple domains (i.e., demographic, socioeconomic, and health-related), while accounting for bone mineral density (BMD) scans, which have been shown to improve health equity across sex and racial/ethnic identities. RESEARCH DESIGN AND METHODS Data from the 2012-2016, nationally representative, population-based, cohort Health and Retirement Study (N = 18,224-18,359) were used to estimate 4 logistic regression models with the outcome of osteoporosis diagnosis. Approximately 50% of the sample identified as female and 50% as male, while about 81% identified as White/European American, 11% as Black/African American, and 8% as another race/ethnicity. The key independent variables were depressive symptoms-measured using two common scales-and a history of psychological problems. RESULTS A history of psychological problems and one depressive symptoms measure were associated with the odds of osteoporosis diagnosis in the presence of other known risk factors for osteoporosis. DISCUSSION AND IMPLICATIONS Support for the theoretical models was limited. Evidence suggests possible directionality; a history of psychological distress may be a risk factor for osteoporosis, though we cannot rule out the other direction. Public health professionals and healthcare providers should consider a history of psychological problems as a risk factor for osteoporosis when deciding whether to recommend a BMD scan.
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Affiliation(s)
- K Godde
- Department of Sociology and Anthropology, University of La Verne, La Verne, California, USA
| | | | - Josephine Roberts
- Department of Sociology and Anthropology, University of La Verne, La Verne, California, USA
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Yoon DS, Oh SE, Lee KM, Jung S, Ko EA, Kim TG, Park KH, Lee JW. Age-Related Decrease in Pellino-1 Expression Contributes to Osteoclast-Mediated Bone Loss. Adv Biol (Weinh) 2024:e2400210. [PMID: 38712476 DOI: 10.1002/adbi.202400210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Indexed: 05/08/2024]
Abstract
Aging-related bone loss is driven by various biological factors, such as imbalanced bone metabolism from decreased osteoblast and increased osteoclast activities. Various transcriptional and post-transcriptional factors increase osteoclast activity with aging; however, studies regarding the post-translational regulators of osteoclast activity are still limited. The ubiquitin E3 ligase Pellino-1 is a well-known post-translational regulator of inflammation. However, how Pellino-1 expression regulation affects osteoclast differentiation remains unclear. This study determined that Pellino-1 levels are reduced in bone marrow monocytes (BMMs) from 40-week-old mice compared to 4-week-old mice. Interestingly, conditional Knockout (cKO) of Pellino-1 in 6-week-old mice resulted in decreased bone mass, reduced body size, and lower weight than in Pellino-1 floxed mice; however, these differences are not observed in 20-week-old mice. The increased number of tartrate-resistant acid phosphatase (TRAP)-positive cells and serum levels of C-terminal telopeptides of type I collagen, a marker of bone resorption, in 6-week-old Pellino-1 cKO mice implied a connection between Pellino-1 and the osteoclast population. Enhanced TRAP activity and upregulation of osteoclast genes in BMMs from the cKO mice indicate that Pellino-1 deletion affects osteoclast differentiation, leading to decreased bone mass and heightened osteoclast activity. Thus, targeting Pellino-1 could be a potential gene therapy for managing and preventing osteoporosis.
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Affiliation(s)
- Dong Suk Yoon
- Department of Biomedical Science, Hwasung Medi-Science University, Hwasung, Gyeonggi-Do, 18274, South Korea
- Stem Cell and Aging Laboratory, Institute of HSMU Medi-Science, Hwasung Medi-Science University, Hwaseong, Gyeonggi-Do, 18274, South Korea
| | - Seung Eun Oh
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, 03722, South Korea
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Kyoung-Mi Lee
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, 03722, South Korea
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Sujin Jung
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, 03722, South Korea
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Eun Ae Ko
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Tae-Gyun Kim
- Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, Seoul, 03722, South Korea
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Kwang Hwan Park
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, 03722, South Korea
| | - Jin Woo Lee
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, Seoul, 03722, South Korea
- Department of Orthopaedic Surgery, Graduate School of Medical Science, Brain Korea 21 Project, Yonsei University College of Medicine, Seoul, 03722, South Korea
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Jiang M, Wu W, Xiong Z, Yu X, Ye Z, Wu Z. Targeting autophagy drug discovery: Targets, indications and development trends. Eur J Med Chem 2024; 267:116117. [PMID: 38295689 DOI: 10.1016/j.ejmech.2023.116117] [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: 11/20/2023] [Revised: 12/30/2023] [Accepted: 12/31/2023] [Indexed: 02/25/2024]
Abstract
Autophagy plays a vital role in sustaining cellular homeostasis and its alterations have been implicated in the etiology of many diseases. Drugs development targeting autophagy began decades ago and hundreds of agents were developed, some of which are licensed for the clinical usage. However, no existing intervention specifically aimed at modulating autophagy is available. The obstacles that prevent drug developments come from the complexity of the actual impact of autophagy regulators in disease scenarios. With the development and application of new technologies, several promising categories of compounds for autophagy-based therapy have emerged in recent years. In this paper, the autophagy-targeted drugs based on their targets at various hierarchical sites of the autophagic signaling network, e.g., the upstream and downstream of the autophagosome and the autophagic components with enzyme activities are reviewed and analyzed respectively, with special attention paid to those at preclinical or clinical trials. The drugs tailored to specific autophagy alone and combination with drugs/adjuvant therapies widely used in clinical for various diseases treatments are also emphasized. The emerging drug design and development targeting selective autophagy receptors (SARs) and their related proteins, which would be expected to arrest or reverse the progression of disease in various cancers, inflammation, neurodegeneration, and metabolic disorders, are critically reviewed. And the challenges and perspective in clinically developing autophagy-targeted drugs and possible combinations with other medicine are considered in the review.
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Affiliation(s)
- Mengjia Jiang
- Department of Pharmacology and Pharmacy, China Jiliang University, China
| | - Wayne Wu
- College of Osteopathic Medicine, New York Institute of Technology, USA
| | - Zijie Xiong
- Department of Pharmacology and Pharmacy, China Jiliang University, China
| | - Xiaoping Yu
- Department of Biology, China Jiliang University, China
| | - Zihong Ye
- Department of Biology, China Jiliang University, China
| | - Zhiping Wu
- Department of Pharmacology and Pharmacy, China Jiliang University, China.
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Hendrixson JA, James A, Akel NS, Laster DJ, Crawford JA, Berryhill SB, Onal M. Loss of chaperone-mediated autophagy does not alter age-related bone loss in male mice. FASEB Bioadv 2024; 6:73-84. [PMID: 38463697 PMCID: PMC10918985 DOI: 10.1096/fba.2023-00133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/18/2024] [Accepted: 02/06/2024] [Indexed: 03/12/2024] Open
Abstract
Chaperone-mediated autophagy (CMA) is a lysosome-dependent degradation pathway that eliminates proteins that are damaged, partially unfolded, or targeted for selective proteome remodeling. CMA contributes to several cellular processes, including stress response and proteostasis. Age-associated increase in cellular stressors and decrease in CMA contribute to pathologies associated with aging in various tissues. CMA contributes to bone homeostasis in young mice. An age-associated reduction in CMA was reported in osteoblast lineage cells; however, whether declining CMA contributes to skeletal aging is unknown. Herein we show that cellular stressors stimulate CMA in UAMS-32 osteoblastic cells. Moreover, the knockdown of an essential component of the CMA pathway, LAMP2A, sensitizes osteoblasts to cell death caused by DNA damage, ER stress, and oxidative stress. As elevations in these stressors are thought to contribute to age-related bone loss, we hypothesized that declining CMA contributes to the age-associated decline in bone formation by sensitizing osteoblast lineage cells to elevated stressors. To test this, we aged male CMA-deficient mice and controls up to 24 months of age and examined age-associated changes in bone mass and architecture. We showed that lack of CMA did not alter age-associated decline in bone mineral density as measured by dual x-ray absorptiometry (DXA). Moreover, microCT analysis performed at 24 months of age showed that vertebral cancellous bone volume, cortical thickness, and porosity of CMA-deficient and control mice were similar. Taken together, these results suggest that reduction of CMA does not contribute to age-related bone loss.
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Affiliation(s)
- James A Hendrixson
- Department of Physiology and Cell Biology University of Arkansas for Medical Sciences Little Rock Arkansas USA
| | - Alicen James
- Department of Physiology and Cell Biology University of Arkansas for Medical Sciences Little Rock Arkansas USA
| | - Nisreen S Akel
- Department of Physiology and Cell Biology University of Arkansas for Medical Sciences Little Rock Arkansas USA
| | - Dominique J Laster
- Department of Physiology and Cell Biology University of Arkansas for Medical Sciences Little Rock Arkansas USA
| | - Julie A Crawford
- Center for Musculoskeletal Disease Research (CMDR) University of Arkansas for Medical Sciences Little Rock Arkansas USA
- Division of Endocrinology University of Arkansas for Medical Sciences Little Rock Arkansas USA
| | - Stuart B Berryhill
- Center for Musculoskeletal Disease Research (CMDR) University of Arkansas for Medical Sciences Little Rock Arkansas USA
- Division of Endocrinology University of Arkansas for Medical Sciences Little Rock Arkansas USA
| | - Melda Onal
- Department of Physiology and Cell Biology University of Arkansas for Medical Sciences Little Rock Arkansas USA
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Malvandi AM, Halilaj E, Faraldi M, Mangiavini L, Cristoni S, Leoni V, Lombardi G. Enhanced molecular release from elderly bone samples using collagenase I: insights into fatty acid metabolism alterations. J Transl Med 2024; 22:143. [PMID: 38336738 PMCID: PMC10858523 DOI: 10.1186/s12967-024-04948-8] [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: 10/31/2023] [Accepted: 02/03/2024] [Indexed: 02/12/2024] Open
Abstract
BACKGROUND Bone is a metabolically active tissue containing different cell types acting as endocrine targets and effectors. Further, bone is a dynamic depot for calcium, phosphorous and other essential minerals. The tissue matrix is subjected to a constant turnover in response to mechanical/endocrine stimuli. Bone turnover demands high energy levels, making fatty acids a crucial source for the bone cells. However, the current understanding of bone cell metabolism is poor. This is partly due to bone matrix complexity and difficulty in small molecules extraction from bone samples. This study aimed to evaluate the effect of metabolite sequestering from a protein-dominated matrix to increase the quality and amount of metabolomics data in discovering small molecule patterns in pathological conditions. METHODS Human bone samples were collected from 65 to 85 years old (the elderly age span) patients who underwent hip replacement surgery. Separated cortical and trabecular bone powders were treated with decalcifying, enzymatic (collagenase I and proteinase K) and solvent-based metabolite extraction protocols. The extracted mixtures were analyzed with the high-resolution mass spectrometry (HRMS). Data analysis was performed with XCMS and MetaboAnalystR packages. RESULTS Fast enzymatic treatment of bone samples before solvent addition led to a significantly higher yield of metabolite extraction. Collagenase I and proteinase K rapid digestion showed more effectiveness in cortical and trabecular bone samples, with a significantly higher rate (2.2 folds) for collagenase I. Further analysis showed significant enrichment in pathways like de novo fatty acid biosynthesis, glycosphingolipid metabolism and fatty acid oxidation-peroxisome. CONCLUSION This work presents a novel approach for bone sample preparation for HRMS metabolomics. The disruption of bone matrix conformation at the molecular level helps the molecular release into the extracting solvent and, therefore, can lead to higher quality results and trustable biomarker discovery. Our results showed β-oxidation alteration in the aged bone sample. Future work covering more patients is worthy to identify the effective therapeutics to achieve healthy aging.
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Affiliation(s)
- Amir Mohammad Malvandi
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Via Cristina Belgioioso 173, 20157, Milan, Italy.
| | - Esra Halilaj
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Martina Faraldi
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Via Cristina Belgioioso 173, 20157, Milan, Italy
| | - Laura Mangiavini
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Via Cristina Belgioioso 173, 20157, Milan, Italy
- Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
| | | | - Valerio Leoni
- Department of Laboratory Medicine, University of Milano-Bicocca, Azienda Socio Sanitaria Territoriale Della Brianza, ASST-Brianza, Desio Hospital, Desio, Italy
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry & Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Via Cristina Belgioioso 173, 20157, Milan, Italy
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, Poznań, Poland
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Ma Z, Sun J, Jiang Q, Zhao Y, Jiang H, Sun P, Feng W. Identification and analysis of mitochondria-related central genes in steroid-induced osteonecrosis of the femoral head, along with drug prediction. Front Endocrinol (Lausanne) 2024; 15:1341366. [PMID: 38384969 PMCID: PMC10879930 DOI: 10.3389/fendo.2024.1341366] [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: 11/20/2023] [Accepted: 01/19/2024] [Indexed: 02/23/2024] Open
Abstract
Purpose Steroid-induced osteonecrosis of the femoral head (SONFH) is a refractory orthopedic hip joint disease that primarily affects middle-aged and young individuals. SONFH may be caused by ischemia and hypoxia of the femoral head, where mitochondria play a crucial role in oxidative reactions. Currently, there is limited literature on whether mitochondria are involved in the progression of SONFH. Here, we aim to identify and validate key potential mitochondrial-related genes in SONFH through bioinformatics analysis. This study aims to provide initial evidence that mitochondria play a role in the progression of SONFH and further elucidate the mechanisms of mitochondria in SONFH. Methods The GSE123568 mRNA expression profile dataset includes 10 non-SONFH (non-steroid-induced osteonecrosis of the femoral head) samples and 30 SONFH samples. The GSE74089 mRNA expression profile dataset includes 4 healthy samples and 4 samples with ischemic necrosis of the femoral head. Both datasets were downloaded from the Gene Expression Omnibus (GEO) database. The mitochondrial-related genes are derived from MitoCarta3.0, which includes data for all 1136 human genes with high confidence in mitochondrial localization based on integrated proteomics, computational, and microscopy approaches. By intersecting the GSE123568 and GSE74089 datasets with a set of mitochondrial-related genes, we screened for mitochondrial-related genes involved in SONFH. Subsequently, we used the good Samples Genes method in R language to remove outlier genes and samples in the GSE123568 dataset. We further used WGCNA to construct a scale-free co-expression network and selected the hub gene set with the highest connectivity. We then intersected this gene set with the previously identified mitochondrial-related genes to select the genes with the highest correlation. A total of 7 mitochondrial-related genes were selected. Next, we performed Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis on the selected mitochondrial-related genes using R software. Furthermore, we performed protein network analysis on the differentially expressed proteins encoded by the mitochondrial genes using STRING. We used the GSEA software to group the genes within the gene set in the GSE123568 dataset based on their coordinated changes and evaluate their impact on phenotype changes. Subsequently, we grouped the samples based on the 7 selected mitochondrial-related genes using R software and observed the differences in immune cell infiltration between the groups. Finally, we evaluated the prognostic significance of these features in the two datasets, consisting of a total of 48 samples, by integrating disease status and the 7 gene features using the cox method in the survival R package. We performed ROC analysis using the roc function in the pROC package and evaluated the AUC and confidence intervals using the ci function to obtain the final AUC results. Results Identification and analysis of 7 intersecting DEGs (differentially expressed genes) were obtained among peripheral blood, cartilage samples, hub genes, and mitochondrial-related genes. These 7 DEGs include FTH1, LACTB, PDK3, RAB5IF, SOD2, and SQOR, all of which are upregulated genes with no intersection in the downregulated gene set. Subsequently, GO and KEGG pathway enrichment analysis revealed that the upregulated DEGs are primarily involved in processes such as oxidative stress, release of cytochrome C from mitochondria, negative regulation of intrinsic apoptotic signaling pathway, cell apoptosis, mitochondrial metabolism, p53 signaling pathway, and NK cell-mediated cytotoxicity. GSEA also revealed enriched pathways associated with hub genes. Finally, the diagnostic value of these key genes for hormone-related ischemic necrosis of the femoral head (SONFH) was confirmed using ROC curves. Conclusion BID, FTH1, LACTB, PDK3, RAB5IF, SOD2, and SQOR may serve as potential diagnostic mitochondrial-related biomarkers for SONFH. Additionally, they hold research value in investigating the involvement of mitochondria in the pathogenesis of ischemic necrosis of the femoral head.
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Affiliation(s)
- Zheru Ma
- Department of Bone and Joint Surgery, Orthopaedic Center, The First Hospital of Jilin University, Chang chun, China
| | - Jing Sun
- Department of Otolaryngology Head and Neck Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Qi Jiang
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yao Zhao
- Department of Bone and Joint Surgery, Orthopaedic Center, The First Hospital of Jilin University, Chang chun, China
| | - Haozhuo Jiang
- Department of Bone and Joint Surgery, Orthopaedic Center, The First Hospital of Jilin University, Chang chun, China
| | - Peng Sun
- Department of Bone and Joint Surgery, Orthopaedic Center, The First Hospital of Jilin University, Chang chun, China
| | - Wei Feng
- Department of Bone and Joint Surgery, Orthopaedic Center, The First Hospital of Jilin University, Chang chun, China
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Bi J, Zhang C, Lu C, Mo C, Zeng J, Yao M, Jia B, Liu Z, Yuan P, Xu S. Age-related bone diseases: Role of inflammaging. J Autoimmun 2024; 143:103169. [PMID: 38340675 DOI: 10.1016/j.jaut.2024.103169] [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: 11/08/2023] [Revised: 01/03/2024] [Accepted: 01/19/2024] [Indexed: 02/12/2024]
Abstract
Bone aging is characterized by an imbalance in the physiological and pathological processes of osteogenesis, osteoclastogenesis, adipogenesis, and chondrogenesis, resulting in exacerbated bone loss and the development of age-related bone diseases, including osteoporosis, osteoarthritis, rheumatoid arthritis, and periodontitis. Inflammaging, a novel concept in the field of aging research, pertains to the persistent and gradual escalation of pro-inflammatory reactions during the aging process. This phenomenon is distinguished by its low intensity, systemic nature, absence of symptoms, and potential for management. The mechanisms by which inflammaging contribute to age-related chronic diseases, particularly in the context of age-related bone diseases, remain unclear. The precise manner in which systemic inflammation induces bone aging and consequently contributes to the development of age-related bone diseases has yet to be fully elucidated. This article primarily examines the mechanisms underlying inflammaging and its association with age-related bone diseases, to elucidate the potential mechanisms of inflammaging in age-related bone diseases and offer insights for developing preventive and therapeutic strategies for such conditions.
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Affiliation(s)
- Jiaming Bi
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Caimei Zhang
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Caihong Lu
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Chuzi Mo
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Jiawei Zeng
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Mingyan Yao
- Department of Endocrinology, The Third Hospital of Hebei Medical University, Shijiazhuang, China; Department of Endocrinology, Baoding No.1 Central Hospital, Baoding, China
| | - Bo Jia
- Department of Oral and Maxillofacial Surgery, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhongjun Liu
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China
| | - Peiyan Yuan
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China.
| | - Shuaimei Xu
- Department of Endodontics, Stomatological Hospital, School of Stomatology, Southern Medical University, Guangzhou, Guangdong, China.
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Giannandrea D, Parolini M, Citro V, De Felice B, Pezzotta A, Abazari N, Platonova N, Sugni M, Chiu M, Villa A, Lesma E, Chiaramonte R, Casati L. Nanoplastic impact on bone microenvironment: A snapshot from murine bone cells. JOURNAL OF HAZARDOUS MATERIALS 2024; 462:132717. [PMID: 37820528 DOI: 10.1016/j.jhazmat.2023.132717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/27/2023] [Accepted: 10/03/2023] [Indexed: 10/13/2023]
Abstract
Our world is made of plastic. Plastic waste deeply affects our health entering the food chain. The degradation and/or fragmentation of plastics due to weathering processes result in the generation of nanoplastics (NPs). Only a few studies tested NPs effects on human health. NPs toxic actions are, in part, mediated by oxidative stress (OS) that, among its effects, affects bone remodeling. This study aimed to assess if NPs influence skeleton remodeling through OS. Murine bone cell cultures (MC3T3-E1 preosteoblasts, MLOY-4 osteocyte-like cells, and RAW264.7 pre-osteoclasts) were used to test the NPs detrimental effects on bone cells. NPs affect cell viability and induce ROS production and apoptosis (by caspase 3/7 activation) in pre-osteoblasts, osteocytes, and pre-osteoclasts. NPs impair the migration capability of pre-osteoblasts and potentiate the osteoclastogenesis of preosteoclasts. NPs affected the expression of genes related to inflammatory and osteoblastogenic pathways in pre-osteoblasts and osteocytes, related to the osteoclastogenic commitment of pre-osteoclasts. A better understanding of the impact of NPs on bone cell activities resulting in vivo in impaired bone turnover could give more information on the possible toxicity consequence of NPs on bone mass and the subsequent public health problems, such as bone disease.
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Affiliation(s)
| | - Marco Parolini
- Department of Environmental Science and Policy, University of Milan, Italy
| | | | - Beatrice De Felice
- Department of Environmental Science and Policy, University of Milan, Italy
| | - Alex Pezzotta
- Department of Medical Biotechnology and Translational Medicine, University of Milan, Italy
| | | | | | - Michela Sugni
- Department of Environmental Science and Policy, University of Milan, Italy
| | - Martina Chiu
- Department of Medicine and Surgery, University of Parma, Italy
| | | | - Elena Lesma
- Department of Health Sciences, University of Milan, Italy
| | | | - Lavinia Casati
- Department of Health Sciences, University of Milan, Italy.
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Jiang B, Mou YJ, Zhang XM, Lu K, Xie P, Rao YL, Cong ZW, Sun QG. Ziyin Bushen Fang improves Diabetic Osteoporosis by Inhibiting Autophagy and Oxidative Stress In vitro and In vivo. Comb Chem High Throughput Screen 2024; 27:786-796. [PMID: 38773797 DOI: 10.2174/0113862073261310231113062630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/26/2023] [Accepted: 10/02/2023] [Indexed: 05/24/2024]
Abstract
OBJECTIVE Diabetic osteoporosis (DOP) belongs to the group of diabetes-induced secondary osteoporosis and is the main cause of bone fragility and fractures in many patients with diabetes. The aim of this study was to determine whether Ziyin Bushen Fang (ZYBSF) can improve DOP by inhibiting autophagy and oxidative stress. METHODS Type 1 diabetes mellitus (T1DM) was induced in rats using a high-fat high-sugar diet combined with streptozotocin. Micro-CT scanning was used to quantitatively observe changes in the bone microstructure in each group. Changes in the serum metabolites of DOP rats were analyzed using UHPLC-QTOF-MS. The DOP mouse embryonic osteoblast precursor cell model (MC3T3-E1) was induced using high glucose levels. RESULTS After ZYBSF treatment, bone microstructure significantly improved. The bone mineral density, trabecular number, and trabecular thickness in the ZYBSF-M and ZYBSF-H groups significantly increased. After ZYBSF treatment, the femur structure of the rats was relatively intact, collagen fibers were significantly increased, and osteoporosis was significantly improved. A total of 1239 metabolites were upregulated and 1527 were downregulated in the serum of T1DM and ZYBSF-treated rats. A total of 20 metabolic pathways were identified. In cellular experiments, ZYBSF reduced ROS levels and inhibited the protein expression of LC3II / I, Beclin-1, and p-ERK. CONCLUSION ZYBSF may improve DOP by inhibiting the ROS/ERK-induced autophagy signaling pathway.
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Affiliation(s)
- Bo Jiang
- Department of Traditional Chinese Medicine, Wuhan Third Hospital, Wuhan, 430060, China
| | - Yan Jie Mou
- Department of Traditional Chinese Medicine, Wuhan Third Hospital, Wuhan, 430060, China
| | - Xian Mei Zhang
- Department of Traditional Chinese Medicine, Wuhan Third Hospital, Wuhan, 430060, China
| | - Kun Lu
- Department of Traditional Chinese Medicine, Wuhan Third Hospital, Wuhan, 430060, China
| | - Ping Xie
- Department of Traditional Chinese Medicine, Wuhan Third Hospital, Wuhan, 430060, China
| | - Yan Ling Rao
- Department of Traditional Chinese Medicine, Wuhan Third Hospital, Wuhan, 430060, China
| | - Ze Wei Cong
- Department of Traditional Chinese Medicine, Wuhan Third Hospital, Wuhan, 430060, China
| | - Qin Guo Sun
- Department of Traditional Chinese Medicine, Wuhan Third Hospital, Wuhan, 430060, China
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10
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Snega Priya P, Pratiksha Nandhini P, Arockiaraj J. A comprehensive review on environmental pollutants and osteoporosis: Insights into molecular pathways. ENVIRONMENTAL RESEARCH 2023; 237:117103. [PMID: 37689340 DOI: 10.1016/j.envres.2023.117103] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/28/2023] [Accepted: 09/06/2023] [Indexed: 09/11/2023]
Abstract
A significant problem that has an impact on community wellbeing is environmental pollution. Environmental pollution due to air, water, or soil pollutants might pose a severe risk to global health, necessitating intense scientific effort. Osteoporosis is a common chronic condition with substantial clinical implications on mortality, morbidity, and quality of life. It is closely linked to bone fractures. Worldwide, osteoporosis affects around 200 million people, and every year, there are almost 9 million fractures. There is evidence that certain environmental factors may increase the risk of osteoporosis in addition to traditional risk factors. It is crucial to understand the molecular mechanisms at play because there is a connection between osteoporosis and exposure to environmental pollutants such as heavy metals, air pollutants, endocrine disruptors, metal ions and trace elements. Hence, in this scoping review, we explore potential explanations for the link between pollutants and bone deterioration through deep insights into molecular pathways. Understanding and recognizing these pollutants as modifiable risk factors for osteoporosis would possibly help to enhance environmental policy thereby aiding in the improvement of bone health and improving patient quality of life.
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Affiliation(s)
- P Snega Priya
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Faculty of Science and Humanities, Kattankulatur, 603203, Chengalpattu District, Tamil Nadu, India
| | - P Pratiksha Nandhini
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Faculty of Science and Humanities, Kattankulatur, 603203, Chengalpattu District, Tamil Nadu, India
| | - Jesu Arockiaraj
- Toxicology and Pharmacology Laboratory, Department of Biotechnology, SRM Institute of Science and Technology, Faculty of Science and Humanities, Kattankulatur, 603203, Chengalpattu District, Tamil Nadu, India.
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11
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Catheline SE, Kaiser E, Eliseev RA. Mitochondrial Genetics and Function as Determinants of Bone Phenotype and Aging. Curr Osteoporos Rep 2023; 21:540-551. [PMID: 37542684 DOI: 10.1007/s11914-023-00816-4] [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] [Accepted: 07/12/2023] [Indexed: 08/07/2023]
Abstract
PURPOSE OF REVIEW The purpose of this review is to summarize the recently published scientific literature regarding the effects of mitochondrial function and mitochondrial genome mutations on bone phenotype and aging. RECENT FINDINGS While aging and sex steroid levels have traditionally been considered the most important risk factors for development of osteoporosis, mitochondrial function and genetics are being increasingly recognized as important determinants of bone health. Recent studies indicate that mitochondrial genome variants found in different human populations determine the risk of complex degenerative diseases. We propose that osteoporosis should be among such diseases. Studies have shown the deleterious effects of mitochondrial DNA mutations and mitochondrial dysfunction on bone homeostasis. Mediators of such effects include oxidative stress, mitochondrial permeability transition, and dysregulation of autophagy. Mitochondrial health plays an important role in bone homeostasis and aging, and understanding underlying mechanisms is critical in leveraging this relationship clinically for therapeutic benefit.
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Affiliation(s)
- Sarah E Catheline
- Center for Musculoskeletal Research, University of Rochester School of Medicine and Dentistry, Rochester, USA
| | - Ethan Kaiser
- Department of Pharmacology and Physiology, University of Rochester School of Medicine and Dentistry, Rochester, USA
| | - Roman A Eliseev
- Center for Musculoskeletal Research, University of Rochester School of Medicine and Dentistry, Rochester, USA.
- Department of Pharmacology and Physiology, University of Rochester School of Medicine and Dentistry, Rochester, USA.
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12
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Riegger J, Schoppa A, Ruths L, Haffner-Luntzer M, Ignatius A. Oxidative stress as a key modulator of cell fate decision in osteoarthritis and osteoporosis: a narrative review. Cell Mol Biol Lett 2023; 28:76. [PMID: 37777764 PMCID: PMC10541721 DOI: 10.1186/s11658-023-00489-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] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/11/2023] [Indexed: 10/02/2023] Open
Abstract
During aging and after traumatic injuries, cartilage and bone cells are exposed to various pathophysiologic mediators, including reactive oxygen species (ROS), damage-associated molecular patterns, and proinflammatory cytokines. This detrimental environment triggers cellular stress and subsequent dysfunction, which not only contributes to the development of associated diseases, that is, osteoporosis and osteoarthritis, but also impairs regenerative processes. To counter ROS-mediated stress and reduce the overall tissue damage, cells possess diverse defense mechanisms. However, cellular antioxidative capacities are limited and thus ROS accumulation can lead to aberrant cell fate decisions, which have adverse effects on cartilage and bone homeostasis. In this narrative review, we address oxidative stress as a major driver of pathophysiologic processes in cartilage and bone, including senescence, misdirected differentiation, cell death, mitochondrial dysfunction, and impaired mitophagy by illustrating the consequences on tissue homeostasis and regeneration. Moreover, we elaborate cellular defense mechanisms, with a particular focus on oxidative stress response and mitophagy, and briefly discuss respective therapeutic strategies to improve cell and tissue protection.
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Affiliation(s)
- Jana Riegger
- Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics, Ulm University Medical Center, 89081, Ulm, Germany.
| | - Astrid Schoppa
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081, Ulm, Germany
| | - Leonie Ruths
- Division for Biochemistry of Joint and Connective Tissue Diseases, Department of Orthopedics, Ulm University Medical Center, 89081, Ulm, Germany
| | - Melanie Haffner-Luntzer
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081, Ulm, Germany
| | - Anita Ignatius
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081, Ulm, Germany
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13
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ROSENBERG JL, WOOLLEY W, ELNUNU I, KAMML J, KAMMER DS, ACEVEDO C. Effect of non-enzymatic glycation on collagen nanoscale mechanisms in diabetic and age-related bone fragility. BIOCELL 2023; 47:1651-1659. [PMID: 37693278 PMCID: PMC10486207 DOI: 10.32604/biocell.2023.028014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 03/20/2023] [Indexed: 09/12/2023]
Abstract
Age and diabetes have long been known to induce an oxidative reaction between glucose and collagen, leading to the accumulation of advanced glycation end-products (AGEs) cross-links in collagenous tissues. More recently, AGEs content has been related to loss of bone quality, independent of bone mass, and increased fracture risk with aging and diabetes. Loss of bone quality is mostly attributed to changes in material properties, structural organization, or cellular remodeling. Though all these factors play a role in bone fragility disease, some common recurring patterns can be found between diabetic and age-related bone fragility. The main pattern we will discuss in this viewpoint is the increase of fibrillar collagen stiffness and loss of collagen-induced plasticity with AGE accumulation. This study focused on recent related experimental studies and discusses the correlation between fluorescent AGEs content at the molecular and fibrillar scales, collagen deformation mechanisms at the nanoscale, and resistance to bone fracture at the macroscale.
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Affiliation(s)
- James L. ROSENBERG
- Department of Mechanical Engineering, University of Utah, Salt Lake City, 84112, USA
| | - William WOOLLEY
- Department of Mechanical Engineering, University of Utah, Salt Lake City, 84112, USA
| | - Ihsan ELNUNU
- Department of Mechanical Engineering, University of Utah, Salt Lake City, 84112, USA
| | - Julia KAMML
- Institute for Building Materials, ETH Zurich, Zurich, Switzerland
| | - David S. KAMMER
- Institute for Building Materials, ETH Zurich, Zurich, Switzerland
| | - Claire ACEVEDO
- Department of Mechanical Engineering, University of Utah, Salt Lake City, 84112, USA
- Department of Biomedical Engineering, University of Utah, Salt Lake City, 84112, USA
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14
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Dagneaux L, Limberg AK, Owen AR, Bettencourt JW, Dudakovic A, Bayram B, Gades NM, Sanchez-Sotelo J, Berry DJ, van Wijnen A, Morrey ME, Abdel MP. Knee immobilization reproduces key arthrofibrotic phenotypes in mice. Bone Joint Res 2023; 12:58-71. [PMID: 36647696 PMCID: PMC9872038 DOI: 10.1302/2046-3758.121.bjr-2022-0250.r2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
AIMS As has been shown in larger animal models, knee immobilization can lead to arthrofibrotic phenotypes. Our study included 168 C57BL/6J female mice, with 24 serving as controls, and 144 undergoing a knee procedure to induce a contracture without osteoarthritis (OA). METHODS Experimental knees were immobilized for either four weeks (72 mice) or eight weeks (72 mice), followed by a remobilization period of zero weeks (24 mice), two weeks (24 mice), or four weeks (24 mice) after suture removal. Half of the experimental knees also received an intra-articular injury. Biomechanical data were collected to measure passive extension angle (PEA). Histological data measuring area and thickness of posterior and anterior knee capsules were collected from knee sections. RESULTS Experimental knees immobilized for four weeks demonstrated mean PEAs of 141°, 72°, and 79° after zero, two, and four weeks of remobilization (n = 6 per group), respectively. Experimental knees demonstrated reduced PEAs after two weeks (p < 0.001) and four weeks (p < 0.0001) of remobilization compared to controls. Following eight weeks of immobilization, experimental knees exhibited mean PEAs of 82°, 73°, and 72° after zero, two, and four weeks of remobilization, respectively. Histological analysis demonstrated no cartilage degeneration. Similar trends in biomechanical and histological properties were observed when intra-articular violation was introduced. CONCLUSION This study established a novel mouse model of robust knee contracture without evidence of OA. This was appreciated consistently after eight weeks of immobilization and was irrespective of length of remobilization. As such, this arthrofibrotic model provides opportunities to investigate molecular pathways and therapeutic strategies.Cite this article: Bone Joint Res 2023;12(1):58-71.
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Affiliation(s)
- Louis Dagneaux
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Afton K. Limberg
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Aaron R. Owen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | | | - Amel Dudakovic
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Banu Bayram
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Naomi M. Gades
- Department of Comparative Medicine, Mayo Clinic, Scottsdale, Arizona, USA
| | | | - Daniel J. Berry
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Andre van Wijnen
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA,Department of Biochemistry, University of Vermont, Burlington, Vermont, USA
| | - Mark E. Morrey
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Matthew P. Abdel
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA, Matthew P. Abdel. E-mail:
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15
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Lim S, Ihn HJ, Kim JA, Bae JS, Kim JE, Bae YC, Shin HI, Kim TH, Park EK. Suppressive effects of (-)-tubaic acid on RANKL-induced osteoclast differentiation and bone resorption. Anim Cells Syst (Seoul) 2023; 27:1-9. [PMID: 36704446 PMCID: PMC9873279 DOI: 10.1080/19768354.2023.2166107] [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] [Indexed: 01/14/2023] Open
Abstract
Regulation of osteoclastogenesis and bone-resorbing activity can be an efficacious strategy for treating bone loss diseases because excessive osteoclastic bone resorption leads to the development of such diseases. Here, we investigated the role of (-)-tubaic acid, a thermal degradation product of rotenone, in osteoclast formation and function in an attempt to identify alternative natural compounds. (-)-Tubaic acid significantly inhibited receptor activator of nuclear factor-κB ligand (RANKL)-mediated osteoclast differentiation at both the early and late stages, suggesting that (-)-tubaic acid affects the commitment and differentiation of osteoclast progenitors as well as the cell-cell fusion of mononuclear osteoclasts. (-)-Tubaic acid attenuated the activation of extracellular signal-regulated kinase (ERK) and expression of nuclear factor of activated T-cells cytoplasmic 1 (NFATc1) and its target genes in response to RANKL. Furthermore, a pit-formation assay revealed that (-)-tubaic acid significantly impaired the bone-resorbing activity of osteoclasts. Our results demonstrated that (-)-tubaic acid exhibits anti-osteoclastogenic and anti-resorptive effects, indicating its therapeutic potential in the management of osteoclast-related bone diseases.
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Affiliation(s)
- Soomin Lim
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Hye Jung Ihn
- Cell and Matrix Research Institute (CMRI), Kyungpook National University, Daegu, Republic of Korea
| | - Ju Ang Kim
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Jong-Sup Bae
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, Kyungpook National University, Daegu, Republic of Korea
| | - Jung-Eun Kim
- Department of Molecular Medicine, CMRI, School of Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Yong Chul Bae
- Department of Oral Anatomy and Neurobiology, School of Dentistry, Kyungpook National University, Daegu, Republic of Korea
| | - Hong-In Shin
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea
| | - Tae Hoon Kim
- Department of Food Science and Biotechnology, Daegu University, Gyeongsan, Republic of Korea
| | - Eui Kyun Park
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea, Eui Kyun Park Department of Oral Pathology and Regenerative Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu, Republic of Korea; Tae Hoon Kim Department of Food Science and Biotechnology, Daegu University, Gyeongsan, Republic of Korea
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16
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Mitchell CA, Verovskaya EV, Calero-Nieto FJ, Olson OC, Swann JW, Wang X, Hérault A, Dellorusso PV, Zhang SY, Svendsen AF, Pietras EM, Bakker ST, Ho TT, Göttgens B, Passegué E. Stromal niche inflammation mediated by IL-1 signalling is a targetable driver of haematopoietic ageing. Nat Cell Biol 2023; 25:30-41. [PMID: 36650381 PMCID: PMC7614279 DOI: 10.1038/s41556-022-01053-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 11/15/2022] [Indexed: 01/19/2023]
Abstract
Haematopoietic ageing is marked by a loss of regenerative capacity and skewed differentiation from haematopoietic stem cells (HSCs), leading to impaired blood production. Signals from the bone marrow niche tailor blood production, but the contribution of the old niche to haematopoietic ageing remains unclear. Here we characterize the inflammatory milieu that drives both niche and haematopoietic remodelling. We find decreased numbers and functionality of osteoprogenitors at the endosteum and expansion of central marrow LepR+ mesenchymal stromal cells associated with deterioration of the sinusoidal vasculature. Together, they create a degraded and inflamed old bone marrow niche. Niche inflammation in turn drives the chronic activation of emergency myelopoiesis pathways in old HSCs and multipotent progenitors, which promotes myeloid differentiation and hinders haematopoietic regeneration. Moreover, we show how production of interleukin-1β (IL-1β) by the damaged endosteum acts in trans to drive the proinflammatory nature of the central marrow, with damaging consequences for the old blood system. Notably, niche deterioration, HSC dysfunction and defective regeneration can all be ameliorated by blocking IL-1 signalling. Our results demonstrate that targeting IL-1 as a key mediator of niche inflammation is a tractable strategy to improve blood production during ageing.
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Affiliation(s)
- Carl A Mitchell
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA
| | - Evgenia V Verovskaya
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA
- The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Department of Medicine, Division Hematology/Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Fernando J Calero-Nieto
- Wellcome and MRC Cambridge Stem Cell Institute, Department of Haematology, Jeffrey Cheah Biomedical Centre, Cambridge University, Cambridge, UK
| | - Oakley C Olson
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA
| | - James W Swann
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA
| | - Xiaonan Wang
- Wellcome and MRC Cambridge Stem Cell Institute, Department of Haematology, Jeffrey Cheah Biomedical Centre, Cambridge University, Cambridge, UK
| | - Aurélie Hérault
- The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Department of Medicine, Division Hematology/Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Paul V Dellorusso
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA
| | - Si Yi Zhang
- The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Department of Medicine, Division Hematology/Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Arthur Flohr Svendsen
- The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Department of Medicine, Division Hematology/Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Eric M Pietras
- The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Department of Medicine, Division Hematology/Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Sietske T Bakker
- The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Department of Medicine, Division Hematology/Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Theodore T Ho
- The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Department of Medicine, Division Hematology/Oncology, University of California San Francisco, San Francisco, CA, USA
| | - Berthold Göttgens
- Wellcome and MRC Cambridge Stem Cell Institute, Department of Haematology, Jeffrey Cheah Biomedical Centre, Cambridge University, Cambridge, UK
| | - Emmanuelle Passegué
- Columbia Stem Cell Initiative, Department of Genetics and Development, Columbia University Irving Medical Center, New York, NY, USA.
- The Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Department of Medicine, Division Hematology/Oncology, University of California San Francisco, San Francisco, CA, USA.
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17
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Liu Y, Zhang Z, Li T, Xu H, Zhang H. Senescence in osteoarthritis: from mechanism to potential treatment. Arthritis Res Ther 2022; 24:174. [PMID: 35869508 PMCID: PMC9306208 DOI: 10.1186/s13075-022-02859-x] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 07/05/2022] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is an age-related cartilage degenerative disease, and chondrocyte senescence has been extensively studied in recent years. Increased numbers of senescent chondrocytes are found in OA cartilage. Selective clearance of senescent chondrocytes in a post-traumatic osteoarthritis (PTOA) mouse model ameliorated OA development, while intraarticular injection of senescent cells induced mouse OA. However, the means and extent to which senescence affects OA remain unclear. Here, we review the latent mechanism of senescence in OA and propose potential therapeutic methods to target OA-related senescence, with an emphasis on immunotherapies. Natural killer (NK) cells participate in the elimination of senescent cells in multiple organs. A relatively comprehensive discussion is presented in that section. Risk factors for OA are ageing, obesity, metabolic disorders and mechanical overload. Determining the relationship between known risk factors and senescence will help elucidate OA pathogenesis and identify optimal treatments.
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18
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Changes in interstitial fluid flow, mass transport and the bone cell response in microgravity and normogravity. Bone Res 2022; 10:65. [PMID: 36411278 PMCID: PMC9678891 DOI: 10.1038/s41413-022-00234-9] [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: 03/09/2022] [Revised: 08/17/2022] [Accepted: 08/29/2022] [Indexed: 11/22/2022] Open
Abstract
In recent years, our scientific interest in spaceflight has grown exponentially and resulted in a thriving area of research, with hundreds of astronauts spending months of their time in space. A recent shift toward pursuing territories farther afield, aiming at near-Earth asteroids, the Moon, and Mars combined with the anticipated availability of commercial flights to space in the near future, warrants continued understanding of the human physiological processes and response mechanisms when in this extreme environment. Acute skeletal loss, more severe than any bone loss seen on Earth, has significant implications for deep space exploration, and it remains elusive as to why there is such a magnitude of difference between bone loss on Earth and loss in microgravity. The removal of gravity eliminates a critical primary mechano-stimulus, and when combined with exposure to both galactic and solar cosmic radiation, healthy human tissue function can be negatively affected. An additional effect found in microgravity, and one with limited insight, involves changes in dynamic fluid flow. Fluids provide the most fundamental way to transport chemical and biochemical elements within our bodies and apply an essential mechano-stimulus to cells. Furthermore, the cell cytoplasm is not a simple liquid, and fluid transport phenomena together with viscoelastic deformation of the cytoskeleton play key roles in cell function. In microgravity, flow behavior changes drastically, and the impact on cells within the porous system of bone and the influence of an expanding level of adiposity are not well understood. This review explores the role of interstitial fluid motion and solute transport in porous bone under two different conditions: normogravity and microgravity.
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19
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Zhu X, Chen L, Pan L, Zeng Y, Fu Q, Liu Y, Peng Y, Wang Y, You L. Risk factors of primary and recurrent fractures in postmenopausal osteoporotic Chinese patients: A retrospective analysis study. BMC Womens Health 2022; 22:465. [PMID: 36404305 PMCID: PMC9677643 DOI: 10.1186/s12905-022-02034-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 10/13/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND As postmenopausal osteoporotic fractures can cause higher rates of disability and mortality in women; it is essential to analyze the factors associated with primary and recurrent fractures in postmenopausal osteoporosis (PMOP) patients. METHODS Retrospective analysis of 2478 PMOP patients aged ≥ 50 years who attended the Shanghai General Hospital from January 2007 to December 2016, including 1239 patients with no fractures and 1239 patients with histories of fractures (1008 in the primary fracture group and 231 in the re-fracture group). All patients' basic clinical data, serum biochemical and bone metabolic markers, bone mineral density (BMD), and other indicators were recorded uniformly. Comparing the differences between the clinical characteristics of patients with primary and recurrent fractures, as well as the differences in the clinical characteristics of patients with primary and recurrent fractures in combination with different diseases, further analyses the risk factors for primary and recurrent fractures in PMOP patients. SPSS.26 was used for statistical analysis. RESULTS Compared to the unfractured group, the fractured group was older and had lower height and bone mineral density (all P < 0.01), with the re-fractured group having lower BMD at each key site than the primary fracture group (all P < 0.01). Analysis of the combined disease subgroups showed that serum BGP levels were lower in the primary and re-fracture patients with diabetes than in the non-diabetic subgroup (P < 0.05), and serum CTX levels were lower in the re-fracture group with diabetes than in the primary fracture group with diabetes (P < 0.05). Patients with recurrent fractures with cardio-vascular diseases had lower BMD than the subgroup without cardio-vascular diseases (P < 0.05) and also had lower BMD than the group with primary fractures with cardio-vascular diseases (P < 0.05). Multiple logistic regression analysis showed that advanced age, overweight, low lumbar spine and total hip BMD were risk factors for primary and recurrent fractures; and comorbid chronic liver and kidney diseases were risk factors for primary fractures. CONCLUSION PMOP patients with advanced age, overweight, low bone mineral density, and comorbid chronic liver and kidney diseases are at greater risk of fractures and require early intervention to reduce fractures occurrence. Moreover, those who are elderly, overweight, and have low bone density should also be aware of the risk of re-fractures.
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Affiliation(s)
- Xiaonan Zhu
- grid.412478.c0000 0004 1760 4628Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080 China
| | - Lin Chen
- grid.412478.c0000 0004 1760 4628Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080 China
| | - Ling Pan
- grid.412478.c0000 0004 1760 4628Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080 China
| | - Yuexi Zeng
- grid.412478.c0000 0004 1760 4628Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080 China
| | - Qiang Fu
- grid.412478.c0000 0004 1760 4628Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080 China
| | - Yanbin Liu
- grid.412478.c0000 0004 1760 4628Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080 China
| | - Yongde Peng
- grid.412478.c0000 0004 1760 4628Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080 China
| | - Yufan Wang
- grid.412478.c0000 0004 1760 4628Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080 China
| | - Li You
- grid.412478.c0000 0004 1760 4628Department of Endocrinology and Metabolism, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080 China
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20
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Tanios M, Brickman B, Cage E, Abbas K, Smith C, Atallah M, Baroi S, Lecka-Czernik B. Diabetes and Impaired Fracture Healing: A Narrative Review of Recent Literature. Curr Osteoporos Rep 2022; 20:229-239. [PMID: 35960475 DOI: 10.1007/s11914-022-00740-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/22/2022] [Indexed: 11/03/2022]
Abstract
PURPOSE OF THE REVIEW Diabetes mellitus is a chronic metabolic disorder commonly encountered in orthopedic patients. Both type 1 and type 2 diabetes mellitus increase fracture risk and impair fracture healing. This review examines complex etiology of impaired fracture healing in diabetes. RECENT FINDINGS Recent findings point to several mechanisms leading to orthopedic complications in diabetes. Hyperglycemia and chronic inflammation lead to increased formation of advanced glycation end products and generation of reactive oxygen species, which in turn contribute to the disruption in osteoblast and osteoclast balance leading to decreased bone formation and heightening the risk of nonunion or delayed union as well as impaired fracture healing. The mechanisms attributing to this imbalance is secondary to an increase in pro-inflammatory mediators leading to premature resorption of callus cartilage and impaired bone formation due to compromised osteoblast differentiation and their apoptosis. Other mechanisms include disruption in the bone's microenvironment supporting different stages of healing process including hematoma and callus formation, and their resolution during bone remodeling phase. Complications of diabetes including peripheral neuropathy and peripheral vascular disease also contribute to the impairment of fracture healing. Certain diabetic drugs may have adverse effects on fracture healing. The pathophysiology of impaired fracture healing in diabetic patients is complex. This review provides an update of the most recent findings on how key mediators of bone healing are affected in diabetes.
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Affiliation(s)
- Mina Tanios
- Department of Orthopedic Surgery, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA.
| | - Bradley Brickman
- The University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Emily Cage
- Department of Orthopedic Surgery, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Kassem Abbas
- The University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Cody Smith
- Department of Orthopedic Surgery, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Marina Atallah
- The University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Sudipta Baroi
- Department of Orthopedic Surgery, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA
| | - Beata Lecka-Czernik
- Department of Orthopedic Surgery, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA.
- Center for Diabetes and Endocrine Research, University of Toledo College of Medicine and Life Sciences, Toledo, OH, USA.
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21
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Scott MB, Styring AK, McCullagh JSO. Polyphenols: Bioavailability, Microbiome Interactions and Cellular Effects on Health in Humans and Animals. Pathogens 2022; 11:pathogens11070770. [PMID: 35890016 PMCID: PMC9324685 DOI: 10.3390/pathogens11070770] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 06/26/2022] [Accepted: 07/03/2022] [Indexed: 12/12/2022] Open
Abstract
Polyphenolic compounds have a variety of functions in plants including protecting them from a range of abiotic and biotic stresses such as pathogenic infections, ionising radiation and as signalling molecules. They are common constituents of human and animal diets, undergoing extensive metabolism by gut microbiota in many cases prior to entering circulation. They are linked to a range of positive health effects, including anti-oxidant, anti-inflammatory, antibiotic and disease-specific activities but the relationships between polyphenol bio-transformation products and their interactions in vivo are less well understood. Here we review the state of knowledge in this area, specifically what happens to dietary polyphenols after ingestion and how this is linked to health effects in humans and animals; paying particular attention to farm animals and pigs. We focus on the chemical transformation of polyphenols after ingestion, through microbial transformation, conjugation, absorption, entry into circulation and uptake by cells and tissues, focusing on recent findings in relation to bone. We review what is known about how these processes affect polyphenol bioactivity, highlighting gaps in knowledge. The implications of extending the use of polyphenols to treat specific pathogenic infections and other illnesses is explored.
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Affiliation(s)
- Michael B. Scott
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK;
- School of Archaeology, University of Oxford, Oxford OX1 3TG, UK;
| | - Amy K. Styring
- School of Archaeology, University of Oxford, Oxford OX1 3TG, UK;
| | - James S. O. McCullagh
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Oxford OX1 3TA, UK;
- Correspondence:
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22
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Schoppa AM, Chen X, Ramge JM, Vikman A, Fischer V, Haffner-Luntzer M, Riegger J, Tuckermann J, Scharffetter-Kochanek K, Ignatius A. Osteoblast lineage Sod2 deficiency leads to an osteoporosis-like phenotype in mice. Dis Model Mech 2022; 15:274992. [PMID: 35394023 PMCID: PMC9118037 DOI: 10.1242/dmm.049392] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 03/25/2022] [Indexed: 12/19/2022] Open
Abstract
Osteoporosis is a systemic metabolic skeletal disease characterized by low bone mass and strength associated with fragility fractures. Oxidative stress, which results from elevated intracellular reactive oxygen species (ROS) and arises in the aging organism, is considered one of the critical factors contributing to osteoporosis. Mitochondrial (mt)ROS, as the superoxide anion (O2−) generated during mitochondrial respiration, are eliminated in the young organism by antioxidant defense mechanisms, including superoxide dismutase 2 (SOD2), the expression and activity of which are decreased in aging mesenchymal progenitor cells, accompanied by increased mtROS production. Using a mouse model of osteoblast lineage cells with Sod2 deficiency, we observed significant bone loss in trabecular and cortical bones accompanied by decreased osteoblast activity, increased adipocyte accumulation in the bone marrow and augmented osteoclast activity, suggestive of altered mesenchymal progenitor cell differentiation and osteoclastogenesis. Furthermore, osteoblast senescence was increased. To date, there are only a few studies suggesting a causal association between mtROS and cellular senescence in tissue in vivo. Targeting SOD2 to improve redox homeostasis could represent a potential therapeutic strategy for maintaining bone health during aging. Summary: Osteoblast-lineage specific Sod2 deficiency in mice leads to increased mtROS, impaired osteoblast function, increased adipogenesis, increased osteoclast activity and increased osteoblast senescence, resulting in bone loss.
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Affiliation(s)
- Astrid M Schoppa
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081 Ulm, Germany
| | - Xiangxu Chen
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081 Ulm, Germany
| | - Jan-Moritz Ramge
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081 Ulm, Germany
| | - Anna Vikman
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081 Ulm, Germany
| | - Verena Fischer
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081 Ulm, Germany
| | - Melanie Haffner-Luntzer
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081 Ulm, Germany
| | - Jana Riegger
- Department of Orthopedics, Division for Biochemistry of Joint and Connective Tissue Diseases, Ulm University Medical Center, 89081 Ulm, Germany
| | - Jan Tuckermann
- Institute of Comparative Molecular Endocrinology, Ulm University, 89081 Ulm, Germany
| | | | - Anita Ignatius
- Institute of Orthopedic Research and Biomechanics, Ulm University Medical Center, 89081 Ulm, Germany
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Geurtzen K, López-Delgado AC, Duseja A, Kurzyukova A, Knopf F. Laser-mediated osteoblast ablation triggers a pro-osteogenic inflammatory response regulated by reactive oxygen species and glucocorticoid signaling in zebrafish. Development 2022; 149:275194. [DOI: 10.1242/dev.199803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 02/22/2022] [Indexed: 12/31/2022]
Abstract
ABSTRACT
In zebrafish, transgenic labeling approaches, robust regenerative responses and excellent in vivo imaging conditions enable precise characterization of immune cell behavior in response to injury. Here, we monitored osteoblast-immune cell interactions in bone, a tissue which is particularly difficult to in vivo image in tetrapod species. Ablation of individual osteoblasts leads to recruitment of neutrophils and macrophages in varying numbers, depending on the extent of the initial insult, and initiates generation of cathepsin K+ osteoclasts from macrophages. Osteoblast ablation triggers the production of pro-inflammatory cytokines and reactive oxygen species, which are needed for successful macrophage recruitment. Excess glucocorticoid signaling as it occurs during the stress response inhibits macrophage recruitment, maximum speed and changes the macrophage phenotype. Although osteoblast loss is compensated for within a day by contribution of committed osteoblasts, macrophages continue to populate the region. Their presence is required for osteoblasts to fill the lesion site. Our model enables visualization of bone repair after microlesions at single-cell resolution and demonstrates a pro-osteogenic function of tissue-resident macrophages in non-mammalian vertebrates.
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Affiliation(s)
- Karina Geurtzen
- Center for Regenerative Therapies TU Dresden (CRTD), Center for Molecular and Cellular Bioengineering (CMCB), TU Dresden, 01307 Dresden, Germany
- Center for Healthy Aging, Medical Faculty Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany
- Laboratory of Clinical and Experimental Endocrinology, Department of Chronic Diseases, Metabolism and Ageing, KU Leuven, 3000 Leuven, Belgium
| | - Alejandra Cristina López-Delgado
- Center for Regenerative Therapies TU Dresden (CRTD), Center for Molecular and Cellular Bioengineering (CMCB), TU Dresden, 01307 Dresden, Germany
- Center for Healthy Aging, Medical Faculty Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany
| | - Ankita Duseja
- Center for Regenerative Therapies TU Dresden (CRTD), Center for Molecular and Cellular Bioengineering (CMCB), TU Dresden, 01307 Dresden, Germany
- Center for Healthy Aging, Medical Faculty Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany
- Department of Oncology and Metabolism, Metabolic Bone Centre, Sorby Wing, Northern General Hospital, Sheffield S5 7AU, UK
| | - Anastasia Kurzyukova
- Center for Regenerative Therapies TU Dresden (CRTD), Center for Molecular and Cellular Bioengineering (CMCB), TU Dresden, 01307 Dresden, Germany
- Center for Healthy Aging, Medical Faculty Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany
- Faculty of Health and Medical Sciences, Biotech Research & Innovation Centre (BRIC), University of Copenhagen, 2200 Copenhagen, Denmark
| | - Franziska Knopf
- Center for Regenerative Therapies TU Dresden (CRTD), Center for Molecular and Cellular Bioengineering (CMCB), TU Dresden, 01307 Dresden, Germany
- Center for Healthy Aging, Medical Faculty Carl Gustav Carus, TU Dresden, 01307 Dresden, Germany
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Network Pharmacology Deciphers the Action of Bioactive Polypeptide in Attenuating Inflammatory Osteolysis via the Suppression of Oxidative Stress and Restoration of Bone Remodeling Balance. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:4913534. [PMID: 35578727 PMCID: PMC9107052 DOI: 10.1155/2022/4913534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 03/18/2022] [Indexed: 11/25/2022]
Abstract
Oxidative stress involves enormously in the development of chronic inflammatory bone disease, wherein the overproduction of reactive oxygen species (ROS) negatively impacts the bone remodeling via promoting osteoclastogenesis and inhibiting osteogenesis. Lacking effective therapies highlights the importance of finding novel treatments. Our previous study screened a novel bioactive peptide D7 and demonstrated it could enhance the cell behaviors and protect bone marrow mesenchymal stem cells (BMSCs). Since BMSCs are progenitor cells of osteoblast (OB), we therefore ask whether D7 could also protect against the progress of inflammatory osteolysis. To validate our hypothesis and elucidate the underlying mechanisms, we first performed network pharmacology-based analysis according to the molecule structure of D7, and then followed by pharmacological evaluation on D7 by in vitro lipopolysaccharide(LPS)-induced models. The result from network pharmacology identified 20 candidate targets of D7 for inflammatory osteolysis intervention. The further analysis of Gene Ontology (GO)/KEGG pathway enrichment suggested the therapeutic effect of D7 may primarily affect osteoclast (OC) differentiation and function during the inflammatory osteolysis. Through validating the real effects of D7 on OC and OB as postulated, results demonstrated suppressive effects of D7 on LPS-stimulated OC differentiation and resorption, via the inhibition on OC marker genes. Contrarily, by improving the expression of OB marker genes, D7 displayed promotive effects on OB differentiation and alleviated LPS-induced osteogenic damage. Further mechanism study revealed that D7 could reduce LPS-induced ROS formation and strengthen antioxidants expressions in both OC and OB precursors, ameliorating LPS-triggered redox imbalance in bone remodeling. Taken together, our findings unveiled therapeutic effects of D7 against LPS-induced inflammatory osteolysis through the suppression of oxidative stress and the restoration of the bone remodeling process, providing a new therapeutic candidate for chronic inflammatory bone diseases.
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25
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Adami G, Cattani G, Rossini M, Viapiana O, Olivi P, Orsolini G, Bertoldo E, Fracassi E, Gatti D, Fassio A. Association between exposure to fine particulate matter and osteoporosis: a population-based cohort study. Osteoporos Int 2022; 33:169-176. [PMID: 34268604 PMCID: PMC8758604 DOI: 10.1007/s00198-021-06060-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/30/2021] [Indexed: 11/30/2022]
Abstract
Long-term environmental air pollution exposure was associated with osteoporosis' risk in a cohort of women at high risk of fracture. Cortical sites seemed to be more susceptible to the exposure's effect. INTRODUCTION Environmental air pollution has been associated with disruption of bone health at a molecular level. Particulate matter (PM) exposure can simultaneously stimulate bone resorption and halt bone formation. The primary aim of the present study is to describe the association between long-term exposure to PM and osteoporosis in a large cohort of women at high risk of fracture. METHODS Clinical, demographic, and densitometric data were extracted from the DeFRAcalc79 dataset, which gathers data on women at risk for osteoporosis. Data on the monitoring of PM10 and PM2.5 concentrations were retrieved from the Italian institute of environment protection and research (Istituto Superiore per la Protezione e la Ricerca Ambientale, ISPRA). Generalized linear models with robust estimators were employed to determine the relationship between BMD and PM long-term exposure. RESULTS A total 59,950 women from 110 Italian provinces were included in the study. PM 2.5 exposure was negatively associated with T-score levels at the femoral neck (β -0.005, 95 CI -0.007 to -0.003) and lumbar spine (β -0.003, 95% CI -0.006 to -0.001). Chronic exposure to PM2.5 above 25 μg/m3 was associated with a 16% higher risk of having osteoporotic T-score at any site (aOR 1.161, 95% CI 1.105 to 1.220), and exposure to PM10 above 30 μg/m3 was associated with a 15% higher risk of having osteoporotic T-score at any site (aOR 1.148, 95% CI 1.098 to 1.200). CONCLUSION Long-term exposure to air pollution was associated with higher risk of osteoporosis. Femoral neck site seemed to be more susceptible to the detrimental effect of PM exposure than lumbar spine site. KEY MESSAGE Exposure to air pollution is associated with osteoporosis, mainly at femoral site.
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Affiliation(s)
- G. Adami
- Rheumatology Unit, University of Verona, Pz Scuro 10, 37134 Verona, Italy
| | - G. Cattani
- Italian Institute for Environmental Protection and Research, Rome, Italy
| | - M. Rossini
- Rheumatology Unit, University of Verona, Pz Scuro 10, 37134 Verona, Italy
| | - O. Viapiana
- Rheumatology Unit, University of Verona, Pz Scuro 10, 37134 Verona, Italy
| | - P. Olivi
- Orthopedic Unit, University of Verona, Verona, Italy
| | - G. Orsolini
- Rheumatology Unit, University of Verona, Pz Scuro 10, 37134 Verona, Italy
| | - E. Bertoldo
- Rheumatology Unit, University of Verona, Pz Scuro 10, 37134 Verona, Italy
| | - E. Fracassi
- Rheumatology Unit, University of Verona, Pz Scuro 10, 37134 Verona, Italy
| | - D. Gatti
- Rheumatology Unit, University of Verona, Pz Scuro 10, 37134 Verona, Italy
| | - A. Fassio
- Rheumatology Unit, University of Verona, Pz Scuro 10, 37134 Verona, Italy
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26
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Sahabi S, Jafari-Gharabaghlou D, Zarghami N. A new insight into cell biological and biochemical changes through aging. Acta Histochem 2022; 124:151841. [PMID: 34995929 DOI: 10.1016/j.acthis.2021.151841] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 12/29/2021] [Accepted: 12/29/2021] [Indexed: 12/17/2022]
Abstract
After several years of extensive research, the main cause of aging is yet elusive. There are some theories about aging, such as stem cell aging, senescent cells accumulation, and neuro-endocrine theories. None of them is able to explain all changes that happen in cells and body through aging. By finding out the main cause of aging, it will be much easier to control, prevent and even reverse the aging process. Our cells, regardless of their replicative capacity, get old through aging and they have almost the same epigenetic age. Different cell signaling pathways contribute to aging. The most important one is mTORC1 that becomes hyperactive in cells that undergo aging. Other significant changes with age are lysosome accumulation, impaired autophagy, and mitophagy. Immune system undergoes gradual changes through aging including a shift from lymphoid to myeloid lineage production as well as increased IL-6 and TNF-α which lead to age-related weight loss and meta-inflammation. Additionally, our endocrine system also experiences some changes that should be taken into consideration when looking for the main cause of aging in the human body. In this review, we planned to summarize some of the changes that happen in cells and the body through aging.
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27
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Panahi N, Arjmand B, Ostovar A, Kouhestani E, Heshmat R, Soltani A, Larijani B. Metabolomic biomarkers of low BMD: a systematic review. Osteoporos Int 2021; 32:2407-2431. [PMID: 34309694 DOI: 10.1007/s00198-021-06037-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 06/14/2021] [Indexed: 12/12/2022]
Abstract
Due to the metabolic nature of osteoporosis, this study was conducted to identify metabolomic studies investigating the metabolic profile of low bone mineral density (BMD) and osteoporosis. A comprehensive systematic literature search was conducted through PubMed, Web of Science, Scopus, and Embase databases up to April 08, 2020, to identify observational studies with cross-sectional or case-control designs investigating the metabolic profile of low BMD in adults using biofluid specimen via metabolomic platform. The quality assessment panel specified for the "omics"-based diagnostic research (QUADOMICS) tool was used to estimate the methodologic quality of the included studies. Ten untargeted and one targeted approach metabolomic studies investigating biomarkers in different biofluids through mass spectrometry or nuclear magnetic resonance platforms were included in the systematic review. Some metabolite panels, rather than individual metabolites, showed promising results in differentiating low BMD from normal. Candidate metabolites were of different categories including amino acids, followed by lipids and carbohydrates. Besides, certain pathways were suggested by some of the studies to be involved. This systematic review suggested that metabolic profiling could improve the diagnosis of low BMD. Despite valuable findings attained from each of these studies, there was great heterogeneity regarding the ethnicity and age of participants, samples, and the metabolomic platform. Further longitudinal studies are needed to validate the results and confirm the predictive role of metabolic profile on low BMD and fracture. It is also mandatory to address and minimize the heterogeneity in future studies by using reliable quantitative methods. Summary: Due to the metabolic nature of osteoporosis, researchers have considered metabolomic studies recently. This systematic review showed that metabolic profiling including different categories of metabolites could improve the diagnosis of low BMD. However, great heterogeneity was observed and it is mandatory to address and minimize the heterogeneity in future studies.
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Affiliation(s)
- N Panahi
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - B Arjmand
- Metabolomics and Genomics Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
| | - A Ostovar
- Osteoporosis Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - E Kouhestani
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - R Heshmat
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - A Soltani
- Evidence Based Medicine Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - B Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
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28
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Wu J, Guo B, Guan H, Mi F, Xu J, Basang, Li Y, Zuo H, Wang L, Feng S, Wei J, Chen G, Li S, Wei Y, Guo Y, Zhao X. The Association Between Long-term Exposure to Ambient Air Pollution and Bone Strength in China. J Clin Endocrinol Metab 2021; 106:e5097-e5108. [PMID: 34263315 DOI: 10.1210/clinem/dgab462] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Indexed: 01/01/2023]
Abstract
CONTEXT Evidence regarding the association of long-term exposure to air pollution on bone strength or osteoporosis is rare, especially in highly polluted low- and middle-income countries. Little is known about whether the association between air pollution and bone strength changes at different bone strength distributions. OBJECTIVE Using the baseline data from the China Multi-Ethnic Cohort, we investigated the association between long-term air pollution exposure and bone strength. METHODS We used multiple linear models to estimate the association between air pollution and bone strength, and we conducted quantile regression models to investigate the variation of this association in the distribution of bone strength. The 3-year concentrations of PM1, PM2.5, PM10, and NO2 for each participant were assessed using spatial statistical models. Bone strength was expressed by the calcaneus quantitative ultrasound index (QUI) measured by quantitative ultrasound, with higher QUI values indicating greater bone strength. RESULTS A total of 66 598 participants were included. Our analysis shows that every 10 μg/m3 increase in 3-year average PM1, PM2.5, PM10, and NO2 was associated with -5.38 units (95% CI: -6.17, -4.60), -1.89 units (95% CI: -2.33, -1.44), -0.77 units (95% CI: -1.08, -0.47), and -2.02 units (95% CI: -2.32, -1.71) changes in the QUI, respectively. In addition, populations with higher bone strength may be more susceptible to air pollution. CONCLUSION Long-term exposure to PM1, PM2.5, PM10, and NO2 was significantly associated with decreased bone strength in southwestern China adults. Air pollution exposure has a more substantial adverse effect on bones among populations with higher bone strength.
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Affiliation(s)
- Jialong Wu
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Bing Guo
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Han Guan
- School of Public Health, the key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, Guizhou 550004, China
| | - Fei Mi
- School of Public Health, Kunming Medical University, Kunming, Yunnan 650500, China
| | - Jingru Xu
- Chongqing Municipal Center for Disease Control and Prevention, Chongqing 400042, China
| | - Basang
- Tibet University, Lhasa, Tibet 850000, China
- Tibet Center for Disease Control and Prevention, Lhasa, Tibet 850002, China
| | - Yajie Li
- Tibet Center for Disease Control and Prevention, Lhasa, Tibet 850002, China
| | - Haojiang Zuo
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Lei Wang
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Shiyu Feng
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Jing Wei
- Department of Chemical and Biochemical Engineering, Iowa Technology Institute, Center for Global and Regional Environmental Research, The University of Iowa, Iowa City, IA 52242, USA
| | - Gongbo Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Guangdong Provincial Engineering Technology Research Center of Environmental and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Shanshan Li
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne 3800, Australia
| | - Yonglan Wei
- Chengdu Center for Disease Control &Prevention, Chengdu, Sichuan 610047, China
| | - Yuming Guo
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne 3800, Australia
| | - Xing Zhao
- West China School of Public Health and West China Fourth Hospital, Sichuan University, Chengdu, Sichuan 610041, China
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Sibilia V, Bottai D, Maggi R, Pagani F, Chiaramonte R, Giannandrea D, Citro V, Platonova N, Casati L. Sex Steroid Regulation of Oxidative Stress in Bone Cells: An In Vitro Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182212168. [PMID: 34831936 PMCID: PMC8621144 DOI: 10.3390/ijerph182212168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 11/11/2021] [Accepted: 11/12/2021] [Indexed: 01/02/2023]
Abstract
Environmental stimuli, including sex hormones and oxidative stress (OS), affect bone balance, modifying the epigenetic profiles of key osteogenic genes. Nonetheless, the interplay between sex steroids, epigenome and OS has yet be fully elucidated. This paper aims to study in vitro the role of sex steroids in OS-induced alteration in bone cells’ homeostasis, and to assess the possible contribution of epigenetic modifications. Toward this purpose, osteoblast (MC3T3-E1) and osteocyte (MLOY-4) cell lines were exposed to two different sources of free oxygen radicals, i.e., tert-butyl hydroperoxide and dexamethasone, and the protective effect of pre-treatment with androgens and estrogens was evaluated. In particular, we analyzed parameters that reflect bone cell homeostasis such as cell viability, cell migration, transcriptomic profile, transcriptional activity, and epigenetic signature. Our findings indicate that estrogens and androgens counteract OS effects. Using partially overlapping strategies, they reduce OS outcomes regarding cell viability, cell migration, the transcriptomic profile of gene families involved in bone remodeling, and epigenetic profile, i.e., H3K4me3 level. Additionally, we demonstrated that the protective effect of steroids against OS on bone homeostasis is partially mediated by the Akt pathway. Overall, these results suggest that the hormonal milieu may influence the mechanisms of age-related bone disease.
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Affiliation(s)
- Valeria Sibilia
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, 20129 Milano, Italy; (V.S.); (F.P.)
| | - Daniele Bottai
- Department of Health Sciences, Università degli Studi di Milano, 20142 Milano, Italy; (D.B.); (R.C.); (D.G.); (V.C.); (N.P.)
| | - Roberto Maggi
- Department of Pharmaceutical Sciences, Università degli Studi di Milano, 20133 Milano, Italy;
| | - Francesca Pagani
- Department of Medical Biotechnology and Translational Medicine, Università degli Studi di Milano, 20129 Milano, Italy; (V.S.); (F.P.)
| | - Raffaella Chiaramonte
- Department of Health Sciences, Università degli Studi di Milano, 20142 Milano, Italy; (D.B.); (R.C.); (D.G.); (V.C.); (N.P.)
| | - Domenica Giannandrea
- Department of Health Sciences, Università degli Studi di Milano, 20142 Milano, Italy; (D.B.); (R.C.); (D.G.); (V.C.); (N.P.)
| | - Valentina Citro
- Department of Health Sciences, Università degli Studi di Milano, 20142 Milano, Italy; (D.B.); (R.C.); (D.G.); (V.C.); (N.P.)
| | - Natalia Platonova
- Department of Health Sciences, Università degli Studi di Milano, 20142 Milano, Italy; (D.B.); (R.C.); (D.G.); (V.C.); (N.P.)
| | - Lavinia Casati
- Department of Health Sciences, Università degli Studi di Milano, 20142 Milano, Italy; (D.B.); (R.C.); (D.G.); (V.C.); (N.P.)
- Correspondence:
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30
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Kim HN, Richardson KK, Krager KJ, Ling W, Simmons P, Allen AR, Aykin-Burns N. Simulated Galactic Cosmic Rays Modify Mitochondrial Metabolism in Osteoclasts, Increase Osteoclastogenesis and Cause Trabecular Bone Loss in Mice. Int J Mol Sci 2021; 22:11711. [PMID: 34769141 PMCID: PMC8583929 DOI: 10.3390/ijms222111711] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 11/24/2022] Open
Abstract
Space is a high-stress environment. One major risk factor for the astronauts when they leave the Earth's magnetic field is exposure to ionizing radiation from galactic cosmic rays (GCR). Several adverse changes occur in mammalian anatomy and physiology in space, including bone loss. In this study, we assessed the effects of simplified GCR exposure on skeletal health in vivo. Three months following exposure to 0.5 Gy total body simulated GCR, blood, bone marrow and tissue were collected from 9 months old male mice. The key findings from our cell and tissue analysis are (1) GCR induced femoral trabecular bone loss in adult mice but had no effect on spinal trabecular bone. (2) GCR increased circulating osteoclast differentiation markers and osteoclast formation but did not alter new bone formation or osteoblast differentiation. (3) Steady-state levels of mitochondrial reactive oxygen species, mitochondrial and non-mitochondrial respiration were increased without any changes in mitochondrial mass in pre-osteoclasts after GCR exposure. (4) Alterations in substrate utilization following GCR exposure in pre-osteoclasts suggested a metabolic rewiring of mitochondria. Taken together, targeting radiation-mediated mitochondrial metabolic reprogramming of osteoclasts could be speculated as a viable therapeutic strategy for space travel induced bone loss.
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Affiliation(s)
- Ha-Neui Kim
- Center for Musculoskeletal Disease Research and Center for Osteoporosis and Metabolic Bone Diseases, Department of Internal Medicine, Division of Endocrinology and Metabolism, University of Arkansas for Medical Sciences, 4301 W. Markham Street, Little Rock, AR 72205, USA; (K.K.R.); (W.L.)
| | - Kimberly K. Richardson
- Center for Musculoskeletal Disease Research and Center for Osteoporosis and Metabolic Bone Diseases, Department of Internal Medicine, Division of Endocrinology and Metabolism, University of Arkansas for Medical Sciences, 4301 W. Markham Street, Little Rock, AR 72205, USA; (K.K.R.); (W.L.)
| | - Kimberly J. Krager
- Department of Pharmaceutical Sciences, Division of Radiation Health, University of Arkansas for Medical Sciences, 4301 W. Markham Street, Little Rock, AR 72205, USA; (K.J.K.); (P.S.); (A.R.A.)
| | - Wen Ling
- Center for Musculoskeletal Disease Research and Center for Osteoporosis and Metabolic Bone Diseases, Department of Internal Medicine, Division of Endocrinology and Metabolism, University of Arkansas for Medical Sciences, 4301 W. Markham Street, Little Rock, AR 72205, USA; (K.K.R.); (W.L.)
| | - Pilar Simmons
- Department of Pharmaceutical Sciences, Division of Radiation Health, University of Arkansas for Medical Sciences, 4301 W. Markham Street, Little Rock, AR 72205, USA; (K.J.K.); (P.S.); (A.R.A.)
| | - Antino R. Allen
- Department of Pharmaceutical Sciences, Division of Radiation Health, University of Arkansas for Medical Sciences, 4301 W. Markham Street, Little Rock, AR 72205, USA; (K.J.K.); (P.S.); (A.R.A.)
| | - Nukhet Aykin-Burns
- Department of Pharmaceutical Sciences, Division of Radiation Health, University of Arkansas for Medical Sciences, 4301 W. Markham Street, Little Rock, AR 72205, USA; (K.J.K.); (P.S.); (A.R.A.)
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Role of Polyphenols in the Metabolism of the Skeletal System in Humans and Animals – A Review. ANNALS OF ANIMAL SCIENCE 2021. [DOI: 10.2478/aoas-2021-0040] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Abstract
Polyphenols are a group of compounds arousing enormous interest due to their multiple effects on both human and animal health and omnipresence in plants. A number of in vitro and animal model studies have shown that all polyphenols exhibit anti-inflammatory and antioxidant activities, and play a significant role against oxidative stress-related pathologies. They also exert gut promotory effects and prevent chronic degenerative diseases. However, less attention has been paid to the potential influence of polyphenols on bone properties and metabolism. It is well known that proper growth and functioning of the organism depend largely on bone growth and health. Therefore, understanding the action of substances (including polyphenols) that may improve the health and functioning of the skeletal system and bone metabolism is extremely important for the health of the present and future generations of both humans and farm animals. This review provides a comprehensive summary of literature related to causes of bone loss during ageing of the organism (in both humans and animals) and possible effects of dietary polyphenols preventing bone loss and diseases. In particular, the underlying cellular and molecular mechanisms that can modulate skeletal homeostasis and influence the bone modeling and remodeling processes are presented.
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Trojani MC, Santucci-Darmanin S, Breuil V, Carle GF, Pierrefite-Carle V. Autophagy and bone diseases. Joint Bone Spine 2021; 89:105301. [PMID: 34673234 DOI: 10.1016/j.jbspin.2021.105301] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2021] [Indexed: 12/13/2022]
Abstract
Autophagy is a ubiquitous cellular process, allowing the removal and recycling of damaged proteins and organelles. At the basal level, this process plays a role in quality control, thus participating in cellular homeostasis. Autophagy can also be induced by various stresses, such as nutrient deprivation or hypoxia, to allow the cell to survive until conditions improve. In recent years, the role of this process has been widely studied in many pathologies such as neurodegenerative diseases or cancers. In bone tissue, various studies have shown that autophagy is involved in the survival, differentiation and activity of osteoblasts, osteocytes and osteoclasts. The evolution of this knowledge has led to the identification of new molecular pathophysiological mechanisms in bone pathologies. This review reports the current state of knowledge on the role of autophagy in 4 bone diseases: osteoporosis, which seems to be associated with a decrease in autophagy, osteopetrosis and Paget's disease where the course of the autophagic process is disturbed, and finally osteosarcoma where autophagy seems to play a protumoral role. A better understanding of the involvement of autophagy in these pathologies should eventually lead to the identification of new potential therapeutic targets.
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Affiliation(s)
- Marie-Charlotte Trojani
- UMR E-430 TIRO-MATOS CEA/DRF Institut Joliot, faculté de médecine de Nice, université Nice Côte d'Azur, 28, avenue de Valombrose, 06107 Nice cedex 2, France; Service de rhumatologie, CHU de Nice, Nice, France
| | - Sabine Santucci-Darmanin
- UMR E-430 TIRO-MATOS CEA/DRF Institut Joliot, faculté de médecine de Nice, université Nice Côte d'Azur, 28, avenue de Valombrose, 06107 Nice cedex 2, France
| | - Véronique Breuil
- UMR E-430 TIRO-MATOS CEA/DRF Institut Joliot, faculté de médecine de Nice, université Nice Côte d'Azur, 28, avenue de Valombrose, 06107 Nice cedex 2, France; Service de rhumatologie, CHU de Nice, Nice, France
| | - Georges F Carle
- UMR E-430 TIRO-MATOS CEA/DRF Institut Joliot, faculté de médecine de Nice, université Nice Côte d'Azur, 28, avenue de Valombrose, 06107 Nice cedex 2, France
| | - Valérie Pierrefite-Carle
- UMR E-430 TIRO-MATOS CEA/DRF Institut Joliot, faculté de médecine de Nice, université Nice Côte d'Azur, 28, avenue de Valombrose, 06107 Nice cedex 2, France; Inserm, Paris, France.
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Shin J, Kweon HJ, Kwon KJ, Han SH. Incidence of osteoporosis and ambient air pollution in South Korea: a population-based retrospective cohort study. BMC Public Health 2021; 21:1794. [PMID: 34610796 PMCID: PMC8493748 DOI: 10.1186/s12889-021-11866-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 09/27/2021] [Indexed: 02/07/2023] Open
Abstract
Background This study investigated the associations between exposure to ambient air pollutants and the incidence of osteoporosis using the Korean National Insurance Service–National Sample Cohort. Methods This nationwide, population-based, retrospective cohort study included 237,149 adults aged ≥40 years that did not have a diagnosis of osteoporosis at baseline between January 1, 2003, and December 31, 2015. Osteoporosis was defined as claim codes and prescriptions of bisphosphonates or selective estrogen receptor modulators at least twice annually. After matching values for PM10, NO2, CO, and SO2 during the 2002–2015 time period and PM2.5 in 2015 with residential areas, the incidence of osteoporosis was analyzed using a Cox proportional hazards regression model according to the quartile of average yearly concentrations of pollutants. Results Overall 22.2% of the study subjects, 52,601 (male: 5.6%, female: 37.6%) adults in total, were newly diagnosed with osteoporosis and treated. Exposure to PM10 was positively associated with incidence of osteoporosis (Q4: 1798 per 100,000 person-years vs. Q1: 1655 per 100,000 person-years). The adjusted hazard ratio (HR) with 95% confidence interval (CI) of Q4 in PM10 was 1.034 (1.009–1.062). The effect of PM10 on osteoporosis incidence was distinct in females (adjusted sub-HR: 1.065, 95% CI: 1.003–1.129), subjects aged < 65 years (adjusted sub-HR: 1.040, 95% CI: 1.010–1.072), and for residents in areas with low urbanization (adjusted sub-HR: 1.052, 95% CI: 1.019–1.087). However, there was no increase in osteoporosis based on exposure to NO2, CO, SO2, or PM2.5. Conclusions Long-term exposure to PM10 was associated with newly diagnosed osteoporosis in Korean adults aged ≥40 years. This finding can aid in policy-making that is directed to control air pollution as a risk factor for bone health. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-021-11866-7.
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Affiliation(s)
- Jinyoung Shin
- Department of Family Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, South Korea
| | - Hyuk Jung Kweon
- Department of Family Medicine, Konkuk University Medical Center, Chungju Hospital, Konkuk University School of Medicine, Chungju, South Korea
| | - Kyoung Ja Kwon
- Department of Neuroscience, Konkuk University School of Medicine, Seoul, South Korea
| | - Seol-Heui Han
- Department of Neurology, Konkuk University Medical Center, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, South Korea.
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Mello-Gentil T, Souza-Mello V. Contributions of anatomy to forensic sex estimation: focus on head and neck bones. Forensic Sci Res 2021; 7:11-23. [PMID: 35341126 PMCID: PMC8942509 DOI: 10.1080/20961790.2021.1889136] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
This study sought to provide an up-to-date review of the importance of anatomy to human identification, focusing on the usefulness of anatomical knowledge about the head and neck bones and teeth to sex estimation in routine forensic anthropology methods. A detailed search of osteology applications in forensic sex estimation was conducted through the electronic databases for the 10 years prior to July 2020. Relevant articles and classic literature on the subject were gathered and are outlined in this review. Among the available literature, several metric analyses showed accuracy superior to 80% in sexual diagnosis. Angles measured from the inclination of glabellae and analysis of the external frontal bone surface through three-dimensional computer-aided design emerge as reliable cranial indexes for sex estimation. In the mandible, the condylar and coronoid height, bigonial width, and coronion–gonion distance express significant sexual dimorphism. Measurements of the canine are the best option for sex estimation using teeth, as well as the thickness of the dentine or enamel of incisors. The axis vertebra surpasses other neck bones for sex estimation due to its atypical shape and the presence of the odontoid process. Metric analyses based on anatomy can provide reliable accuracy in sexual diagnosis. Adequate training and anatomical knowledge can reduce bias and interobserver differences, and the use of three-dimensional models and computed tomography images can enhance the accuracy of these methods for sex estimation. However, every method should be validated before being applied to a different population.
Key Points • Anatomy-based metric analyses can provide reliable accuracy in forensic sex estimation.
• Glabellae inclination, external frontal bone surface, mandible, and canine teeth measurements can reach accuracies superior to 80% in sexual diagnosis. • The use of three-dimensional models and computed tomography images can enhance accuracy in sex estimation. • Every method should be validated before being applied to a different population.
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Affiliation(s)
| | - Vanessa Souza-Mello
- Department of Anatomy, Rio de Janeiro State University, Rio de Janeiro, Brazil
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Jie J, Li W, Wang G, Xu X. FK506 ameliorates osteoporosis caused by osteoblast apoptosis via suppressing the activated CaN/NFAT pathway during oxidative stress. Inflamm Res 2021; 70:789-797. [PMID: 34165588 DOI: 10.1007/s00011-021-01452-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/04/2021] [Accepted: 03/06/2021] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE Osteoporosis is affecting the health of postmenopausal women in the world. In case of that, we explored whether FK-506 could ameliorate osteoporosis by inhibiting the activated CaN/NFAT pathway during oxidative stress. METHODS First, the castrated rat model is constructed through the bilateral ovariectomy. Hologic Discovery (S/N 80347) dual-energy X-ray absorptiometry assessed bone mineral density (BMD) implemented at left femur of rats. Next, hematoxylin-eosin (H&E) staining observed and calculated the changes of bone trabecular, mean trabecular plate separation (Tb.Sp), mean trabecular plate thickness (Tb.Th), and bone volume fraction (BV/TV). Then, CCK-8 assay, TUNEL assay, ALP kit and alizarin red staining detected the viability, apoptosis, alkaline phosphatase (ALP) activity, and capacity of mineralization respectively. At last, commercially available kits detected the levels of ROS and SOD in transfected MC3T3-E1 cells and bone tissues, and Western blot analysis detected proteins related to apoptosis and CaN/NFAT pathway. RESULTS FK-506 increased the BMD and changes of bone trabecular in female castrated rats. FK-506 inhibited the oxidative stress and apoptosis by suppressing the activated CaN/NFAT pathway. Low dose of FK-506 improved the viability, ALP activity, and mineralization capacity. What's more, it suppressed the apoptosis of H2O2-induced MC3T3-E1 cells, which was deteriorated by the high dose of FK-506. Briefly, low dose of FK-506 inhibited the oxidative stress by suppressing the activated CaN/NFAT pathway, while high dose of that further inhibited the oxidative stress by suppressing the CaN/NFAT pathway. CONCLUSION FK-506 ameliorates osteoporosis resulted from osteoblastic apoptosis which caused by suppressing the activated CaN/NFAT pathway during oxidative stress.
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Affiliation(s)
- Jian Jie
- Department of Orthopedics, Pukou Branch Hospital of JiangSu Province Hospital (Nanjing Pukou Central Hospital), 166 Shanghe Street, Jiangpu Street, Pukou District, Nanjing, 211800, Jiangsu, China
| | - Weilin Li
- Department of Orthopedics, Pukou Branch Hospital of JiangSu Province Hospital (Nanjing Pukou Central Hospital), 166 Shanghe Street, Jiangpu Street, Pukou District, Nanjing, 211800, Jiangsu, China
| | - Guihua Wang
- Department of Orthopedics, Pukou Branch Hospital of JiangSu Province Hospital (Nanjing Pukou Central Hospital), 166 Shanghe Street, Jiangpu Street, Pukou District, Nanjing, 211800, Jiangsu, China
| | - Xiaoming Xu
- Department of Orthopedics, Pukou Branch Hospital of JiangSu Province Hospital (Nanjing Pukou Central Hospital), 166 Shanghe Street, Jiangpu Street, Pukou District, Nanjing, 211800, Jiangsu, China.
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Zhang Y, Chen Y, Sun H, Zhang W, Zhang L, Li H, Huang X, Yang J, Ye Z. SENP3-Mediated PPARγ2 DeSUMOylation in BM-MSCs Potentiates Glucocorticoid-Induced Osteoporosis by Promoting Adipogenesis and Weakening Osteogenesis. Front Cell Dev Biol 2021; 9:693079. [PMID: 34249943 PMCID: PMC8266396 DOI: 10.3389/fcell.2021.693079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 05/26/2021] [Indexed: 12/23/2022] Open
Abstract
Glucocorticoid-induced osteoporosis (GIOP) is the most common secondary osteoporosis and reduced bone formation was the main pathological change in GIOP. Our previous studies have shown that there was an imbalance between adipogenic and osteogenic differentiation in GIOP BM-MSCs and peroxisome proliferator-activated receptor γ2 (PPARγ2) played a vital role in this disorders. Here, we reported that there was an increase in ROS level and SENP3 expression in Dex-induced osteoporotic BM-MSCs, and enhanced adipogenesis and weakened osteogenesis in osteoporotic BM-MSCs might be caused by upregulated SENP3. Then we found that SENP3 de-SUMOylated PPARγ2 on K107 site to potentiate adipogenesis and weaken osteogenesis. These results may provide new strategy and target in the clinical diagnosis and treatment of GIOP.
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Affiliation(s)
- Yongxing Zhang
- Musculoskeletal Tumor Center, Department of Orthopedics, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China.,Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Department of Biochemistry and Molecular Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yang Chen
- Department of Ultrasound, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hangxiang Sun
- Musculoskeletal Tumor Center, Department of Orthopedics, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Wenkan Zhang
- Musculoskeletal Tumor Center, Department of Orthopedics, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Lingling Zhang
- Musculoskeletal Tumor Center, Department of Orthopedics, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Hengyuan Li
- Musculoskeletal Tumor Center, Department of Orthopedics, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Xin Huang
- Musculoskeletal Tumor Center, Department of Orthopedics, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
| | - Jie Yang
- Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Department of Biochemistry and Molecular Cell Biology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhaoming Ye
- Musculoskeletal Tumor Center, Department of Orthopedics, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Institute of Orthopedic Research, Zhejiang University, Hangzhou, China
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Tudorachi NB, Totu EE, Fifere A, Ardeleanu V, Mocanu V, Mircea C, Isildak I, Smilkov K, Cărăuşu EM. The Implication of Reactive Oxygen Species and Antioxidants in Knee Osteoarthritis. Antioxidants (Basel) 2021; 10:985. [PMID: 34205576 PMCID: PMC8233827 DOI: 10.3390/antiox10060985] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 06/11/2021] [Accepted: 06/17/2021] [Indexed: 12/16/2022] Open
Abstract
Knee osteoarthritis (KOA) is a chronic multifactorial pathology and a current and essential challenge for public health, with a negative impact on the geriatric patient's quality of life. The pathophysiology is not fully known; therefore, no specific treatment has been found to date. The increase in the number of newly diagnosed cases of KOA is worrying, and it is essential to reduce the risk factors and detect those with a protective role in this context. The destructive effects of free radicals consist of the acceleration of chondrosenescence and apoptosis. Among other risk factors, the influence of redox imbalance on the homeostasis of the osteoarticular system is highlighted. The evolution of KOA can be correlated with oxidative stress markers or antioxidant status. These factors reveal the importance of maintaining a redox balance for the joints and the whole body's health, emphasizing the importance of an individualized therapeutic approach based on antioxidant effects. This paper aims to present an updated picture of the implications of reactive oxygen species (ROS) in KOA from pathophysiological and biochemical perspectives, focusing on antioxidant systems that could establish the premises for appropriate treatment to restore the redox balance and improve the condition of patients with KOA.
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Affiliation(s)
- Nicoleta Bianca Tudorachi
- Faculty of Medicine, “Ovidius” University of Constanța, Mamaia Boulevard 124, 900527 Constanța, Romania; (N.B.T.); (V.A.)
| | - Eugenia Eftimie Totu
- Faculty of Applied Chemistry and Material Science, University Politehnica of Bucharest, 1–5 Polizu Street, 011061 Bucharest, Romania
| | - Adrian Fifere
- Centre of Advanced Research in Bionanoconjugates and Biopolymers Department, “Petru Poni” Institute of Macromolecular Chemistry, 41A Grigore Ghica Voda Alley, 700487 Iasi, Romania
| | - Valeriu Ardeleanu
- Faculty of Medicine, “Ovidius” University of Constanța, Mamaia Boulevard 124, 900527 Constanța, Romania; (N.B.T.); (V.A.)
| | - Veronica Mocanu
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Iasi, Romania; (V.M.); (C.M.)
| | - Cornelia Mircea
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, 700115 Iasi, Romania; (V.M.); (C.M.)
| | - Ibrahim Isildak
- Faculty of Chemistry-Metallurgy, Department of Bioengineering, Yildiz Technical University, Istanbul 34220, Turkey;
| | - Katarina Smilkov
- Faculty of Medical Sciences, Division of Pharmacy, Department of Applied Pharmacy, Goce Delcev University, Krste Misirkov Street, No. 10-A, 2000 Stip, North Macedonia;
| | - Elena Mihaela Cărăuşu
- Faculty of Dental Medicine, “Grigore T. Popa” University of Medicine and Pharmacy, “Nicolae Leon” Building, 13 Grigore Ghica Street, 700259 Iasi, Romania;
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Tresguerres FGF, Tresguerres IF, Leco I, Clemente C, Rodríguez-Torres R, Torres J, Carballido J, Tresguerres JAF. Growth Hormone As Antiaging Factor in Old Bones. Rejuvenation Res 2021; 24:354-365. [PMID: 33906424 DOI: 10.1089/rej.2020.2369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Aging induces changes in bone. Growth hormone (GH) is reduced by aging, and age-related changes observed in old bones might be due to a decrease in the GH/insulin-like growth factor-I (IGF-I) axis. GH administration on aged individuals is controversial. This study aimed to assess the effect of systemic GH treatment on bone properties, bone metabolism, and bone mineral density (BMD) in long bone of old rats. Aged Wistar rats were treated with GH at a dose of 2 mg/kg/day during 10 weeks. Plasma osteocalcin, IGF-I, and carboxy-terminal telopeptide of type I collagen levels were measured. Cross-sectional bone areas and BMD were measured by morphometric and densitometric analysis, respectively. Femora were analyzed by three point-bending testing. t-Test was used for statistical evaluation. p < 0.05 was considered to be significant. Significantly enhanced bone area, at the expense of the cortical area, was found in treated rats. The densitometric analysis showed 11% higher BMD in the experimental group. Significantly higher bone flexural modulus, stiffness, and ultimate load were observed in the treated rats. Plasma osteocalcin and IGF-I levels were significantly increased in the treated group, while the resorption marker concentration remained unchanged. Within the limitations of this experimental study, systemic GH administration has shown to enhance biomechanical properties, BMD, cortical mass, and plasma IGF-I and osteocalcin in old treated rats, compared to the control group; consequently, GH could be considered as an alternative therapy against age-related changes in the bone.
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Affiliation(s)
- Francisco G F Tresguerres
- Department of Dental Clinical Specialities, Faculty of Dentistry, Complutense University, Madrid, Spain
| | - Isabel F Tresguerres
- Department of Dental Clinical Specialities, Faculty of Dentistry, Complutense University, Madrid, Spain
| | - Isabel Leco
- Department of Dental Clinical Specialities, Faculty of Dentistry, Complutense University, Madrid, Spain
| | - Celia Clemente
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Alcala, Madrid, Spain
| | - Rosa Rodríguez-Torres
- Department of Human Anatomy and Embryology, Faculty of Medicine, University of Alcala, Madrid, Spain
| | - Jesús Torres
- Department of Dental Clinical Specialities, Faculty of Dentistry, Complutense University, Madrid, Spain
| | - Jorge Carballido
- Department of Dental Clinical Specialities, Faculty of Dentistry, Complutense University, Madrid, Spain
| | - Jesús A F Tresguerres
- Department of Physiology, Faculty of Medicine, Complutense University, Madrid, Spain
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39
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Liu D, Du J, Sun J, Li M. Parathyroid hormone-related protein inhibits nitrogen-containing bisphosphonate-induced apoptosis of human periodontal ligament fibroblasts by activating MKP1 phosphatase. Bioengineered 2021; 12:1997-2006. [PMID: 34024253 PMCID: PMC8806876 DOI: 10.1080/21655979.2021.1928930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Massive production of reactive oxygen species (ROS) in human periodontal ligament fibroblasts (HPdLFs) by nitrogen-containing bisphosphonates (BPs) is the main factor causing BP-related osteonecrosis of the jaw. Further, oxidative stress and apoptosis of fibroblasts induced by ROS are closely associated with the activation of MAPK. Parathyroid hormone-related protein (PTHrP) can block the activity of MAPK by regulating the levels of MAPK phosphatase 1 (MKP1). Therefore, it is speculated that PTHrP can inhibit the apoptosis of HPdLFs caused by nitrogen-containing BP via regulating the expression levels of MKP1. Herein, alendronate sodium salt trihydrate (nitrogen-containing BP, FOS) and HPdLFs were co-cultured for 24 h, 48 h, and 72 h, and the levels of ROS and apoptosis were determined, respectively. After 48 h co-culture, FOS significantly increased the levels of ROS and apoptosis, and high phosphorylation levels of p38, ERK1/2 and p66Shc were found in this study. However, the inhibitors of p38 and ERK1/2 significantly reduced the apoptosis of HPdLFs. Interestingly, PTHrP pre-treatment significantly reduced the phosphorylation levels of p38, ERK1/2, and p66Shc. More importantly, MKP1 inhibitor sanguinarine inhibited the dephosphorylation levels of p38, ERK1/2, and p66Shc caused by PTHrP. Altogether, PTHrP can inhibit nitrogen-containing BP-induced apoptosis of HPdLFs by activating MKP1 phosphatase.
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Affiliation(s)
- Di Liu
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan China.,Department of Prosthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan China
| | - Juan Du
- Department of Oral and Maxillofacial Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan China
| | - Jing Sun
- Department of Periodontology, Jinan Stomatological Hospital, Jinan China
| | - Minqi Li
- Department of Bone Metabolism, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan China
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40
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Wei F, Neal CJ, Sakthivel TS, Kean T, Seal S, Coathup MJ. Multi-functional cerium oxide nanoparticles regulate inflammation and enhance osteogenesis. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 124:112041. [PMID: 33947541 DOI: 10.1016/j.msec.2021.112041] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 03/02/2021] [Accepted: 03/16/2021] [Indexed: 11/24/2022]
Abstract
Oxidative stress increases bone loss and limits repair, in part, through immunoregulation and the formation and maintenance of low-grade chronic inflammation. The aim of this study was to investigate the effect of cerium oxide nanoparticles (CeONPs) on (i) macrophage phenotype and cytokine expression under normal and simulated acute and chronic inflammatory conditions and, (ii) human mesenchymal stem cell (hBMSCs) proliferation, osteoinduction and osteogenic differentiation. Spherical particles composed of 60% Ce3+ with a hydrodynamic size of ~35 nm and surface charge of 25.4 mV were internalized within cells. Under both acute and chronic conditions, inducible nitric oxide synthase (iNOS) activity decreased with a significant reduction seen in the 1 and 10 μg/mL groups (p < 0.001). A dose dependent and significant increase in anti-inflammatory cytokine gene expression was observed in all CeONP groups under chronic inflammatory condition. No increase in alkaline phosphatase (ALP) activity or mineral deposits were measured following hBMSCs cultured without osteogenic media in any of the CeONP groups, however, a significant increase in osteogenic-related gene expression, ALP activity and bone mineral deposits was measured when supplemented with both CeONPs and osteogenic media. CeONP activity was multifaceted and exhibited low toxicity. A therapeutic dose of 1 μg/mL delivered a disparate but protective effect when under both acute and chronic inflammatory conditions while at the same dose, potentiated osteogenesis.
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Affiliation(s)
- Fei Wei
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Craig J Neal
- Advanced Materials Processing and Analysis Centre, Nanoscience Technology Center (NSTC), Materials Science and Engineering, College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Tamil Selvan Sakthivel
- Advanced Materials Processing and Analysis Centre, Nanoscience Technology Center (NSTC), Materials Science and Engineering, College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Thomas Kean
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Sudipta Seal
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, USA; Advanced Materials Processing and Analysis Centre, Nanoscience Technology Center (NSTC), Materials Science and Engineering, College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Melanie J Coathup
- Biionix Cluster, Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, FL, USA.
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Abstract
MicroRNAs (miRNAs) are a class of short RNA molecules that mediate the regulation of gene activity through interactions with target mRNAs and subsequent silencing of gene expression. It has become increasingly clear the miRNAs regulate many diverse aspects of bone biology, including bone formation and bone resorption processes. The role of miRNAs specifically in osteoclasts has been of recent investigation, due to clinical interest in discovering new paradigms to control excessive bone resorption, as is observed in multiple conditions including aging, estrogen deprivation, cancer metastases or glucocorticoid use. Therefore understanding the role that miRNAs play during osteoclastic differentiation is of critical importance. In this review, we highlight and discuss general aspects of miRNA function in osteoclasts, including exciting data demonstrating that miRNAs encapsulated in extracellular vesicles (EVs) either originating from osteoclasts, or signaling to osteoclast from divergent sites, have important roles in bone homeostasis.
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Affiliation(s)
- Megan M Weivoda
- Department of Periodontics and Oral Medicine, University of Michigan School of Dentistry, Ann Arbor, MI 48109, USA
| | - Sun-Kyeong Lee
- Department of Medicine, UCONN Center on Aging, University Connecticut Health Center, Farmington, CT 06030, USA
| | - David G Monroe
- Department of Medicine, Division of Endocrinology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA; Robert and Arlene Kogod Center on Aging, Rochester, MN 55905, USA.
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42
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Mantella LE, Liblik K, Johri AM. Vascular imaging of atherosclerosis: Strengths and weaknesses. Atherosclerosis 2021; 319:42-50. [PMID: 33476943 DOI: 10.1016/j.atherosclerosis.2020.12.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/15/2020] [Accepted: 12/18/2020] [Indexed: 12/16/2022]
Abstract
Atherosclerosis is an inflammatory disease that can lead to several complications such as ischemic heart disease, stroke, and peripheral vascular disease. Therefore, researchers and clinicians rely heavily on the use of imaging modalities to identify, and more recently, quantify the burden of atherosclerosis in the aorta, carotid arteries, coronary arteries, and peripheral vasculature. These imaging techniques vary in invasiveness, cost, resolution, radiation exposure, and presence of artifacts. Consequently, a detailed understanding of the risks and benefits of each technique is crucial prior to their introduction into routine cardiovascular screening. Additionally, recent research in the field of microvascular imaging has proven to be important in the field of atherosclerosis. Using techniques such as contrast-enhanced ultrasound and superb microvascular imaging, researchers have been able to detect blood vessels within a plaque lesion that may contribute to vulnerability and rupture. This paper will review the strengths and weaknesses of the various imaging techniques used to measure atherosclerotic burden. Furthermore, it will discuss the future of advanced imaging modalities as potential biomarkers for atherosclerosis.
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Affiliation(s)
- Laura E Mantella
- Department of Biomedical and Molecular Sciences, Queen's University, 18 Stuart Street, K7L 3N6, Kingston, ON, Canada
| | - Kiera Liblik
- Department of Medicine, Cardiovascular Imaging Network at Queen's University, 76 Stuart Street, K7L 2V7, Kingston, ON, Canada
| | - Amer M Johri
- Department of Biomedical and Molecular Sciences, Queen's University, 18 Stuart Street, K7L 3N6, Kingston, ON, Canada; Department of Medicine, Cardiovascular Imaging Network at Queen's University, 76 Stuart Street, K7L 2V7, Kingston, ON, Canada.
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43
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Mohammadalipour A, Dumbali SP, Wenzel PL. Mitochondrial Transfer and Regulators of Mesenchymal Stromal Cell Function and Therapeutic Efficacy. Front Cell Dev Biol 2020; 8:603292. [PMID: 33365311 PMCID: PMC7750467 DOI: 10.3389/fcell.2020.603292] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Accepted: 11/16/2020] [Indexed: 12/16/2022] Open
Abstract
Mesenchymal stromal cell (MSC) metabolism plays a crucial role in the surrounding microenvironment in both normal physiology and pathological conditions. While MSCs predominantly utilize glycolysis in their native hypoxic niche within the bone marrow, new evidence reveals the importance of upregulation in mitochondrial activity in MSC function and differentiation. Mitochondria and mitochondrial regulators such as sirtuins play key roles in MSC homeostasis and differentiation into mature lineages of the bone and hematopoietic niche, including osteoblasts and adipocytes. The metabolic state of MSCs represents a fine balance between the intrinsic needs of the cellular state and constraints imposed by extrinsic conditions. In the context of injury and inflammation, MSCs respond to reactive oxygen species (ROS) and damage-associated molecular patterns (DAMPs), such as damaged mitochondria and mitochondrial products, by donation of their mitochondria to injured cells. Through intercellular mitochondria trafficking, modulation of ROS, and modification of nutrient utilization, endogenous MSCs and MSC therapies are believed to exert protective effects by regulation of cellular metabolism in injured tissues. Similarly, these same mechanisms can be hijacked in malignancy whereby transfer of mitochondria and/or mitochondrial DNA (mtDNA) to cancer cells increases mitochondrial content and enhances oxidative phosphorylation (OXPHOS) to favor proliferation and invasion. The role of MSCs in tumor initiation, growth, and resistance to treatment is debated, but their ability to modify cancer cell metabolism and the metabolic environment suggests that MSCs are centrally poised to alter malignancy. In this review, we describe emerging evidence for adaptations in MSC bioenergetics that orchestrate developmental fate decisions and contribute to cancer progression. We discuss evidence and potential strategies for therapeutic targeting of MSC mitochondria in regenerative medicine and tissue repair. Lastly, we highlight recent progress in understanding the contribution of MSCs to metabolic reprogramming of malignancies and how these alterations can promote immunosuppression and chemoresistance. Better understanding the role of metabolic reprogramming by MSCs in tissue repair and cancer progression promises to broaden treatment options in regenerative medicine and clinical oncology.
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Affiliation(s)
- Amina Mohammadalipour
- Department of Integrative Biology & Pharmacology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Sandeep P Dumbali
- Department of Integrative Biology & Pharmacology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Pamela L Wenzel
- Department of Integrative Biology & Pharmacology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX, United States.,Center for Stem Cell and Regenerative Medicine, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, TX, United States.,Immunology Program, MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, United States
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44
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Xiao L, Zhong M, Huang Y, Zhu J, Tang W, Li D, Shi J, Lu A, Yang H, Geng D, Li H, Wang Z. Puerarin alleviates osteoporosis in the ovariectomy-induced mice by suppressing osteoclastogenesis via inhibition of TRAF6/ROS-dependent MAPK/NF-κB signaling pathways. Aging (Albany NY) 2020; 12:21706-21729. [PMID: 33176281 PMCID: PMC7695364 DOI: 10.18632/aging.103976] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 08/01/2020] [Indexed: 04/29/2023]
Abstract
In this study, we investigated the mechanisms by which puerarin alleviates osteoclast-related loss of bone mass in ovariectomy (OVX)-induced osteoporosis model mice. Puerarin-treated OVX mice exhibited higher bone density, fewer tartrate-resistant acid phosphatase (TRAcP)-positive osteoclasts, and levels of lower reactive oxygen species (ROS) within bone tissues than vehicle-treated OVX mice. Puerarin suppressed in vitro osteoclast differentiation, hydroxyapatite resorption activity, and expression of osteoclastogenesis-related genes, such as NFATc1, MMP9, CTSK, Acp5 and c-Fos, in RANKL-induced bone marrow macrophages (BMMs) and RAW264.7 cells. It also reduced intracellular ROS levels by suppressing expression of TRAF6 and NADPH oxidase 1 (NOX1) and increasing expression of antioxidant enzymes such as heme oxygenase-1 (HO-1). Puerarin inhibited TRAF6/ROS-dependent activation of the MAPK and NF-κB signaling pathways in RANKL-induced RAW264.7 cells, and these effects were partially reversed by HO-1 silencing or TRAF6 overexpression. These findings suggest puerarin alleviates loss of bone mass in the OVX-model mice by suppressing osteoclastogenesis via inhibition of the TRAF6/ROS-dependent MAPK/NF-κB signaling pathway.
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Affiliation(s)
- Long Xiao
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Mengdan Zhong
- Department of Endocrinology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Yu Huang
- Department of Gynecology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
- Department of Gynecology, The First People's Hospital of Zhangjiagang, Soochow University, Zhangjiagang 215600, China
| | - Jie Zhu
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Wenkai Tang
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Danyong Li
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Jiandong Shi
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Aiqing Lu
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Huilin Yang
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Hong Li
- Department of Endocrinology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Zhirong Wang
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
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45
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Montaseri A, Giampietri C, Rossi M, Riccioli A, Fattore AD, Filippini A. The Role of Autophagy in Osteoclast Differentiation and Bone Resorption Function. Biomolecules 2020; 10:E1398. [PMID: 33008140 PMCID: PMC7601508 DOI: 10.3390/biom10101398] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/28/2020] [Accepted: 09/29/2020] [Indexed: 12/11/2022] Open
Abstract
Autophagy is an evolutionary conserved and highly regulated recycling process of cellular wastes. Having a housekeeping role, autophagy through the digestion of domestic cytosolic organelles, proteins, macromolecules, and pathogens, eliminates unnecessary materials and provides nutrients and energy for cell survival and maintenance. The critical role of autophagy and autophagy-related proteins in osteoclast differentiation, bone resorption, and maintenance of bone homeostasis has previously been reported. Increasing evidence reveals that autophagy dysregulation leads to alteration of osteoclast function and enhanced bone loss, which is associated with the onset and progression of osteoporosis. In this review, we briefly consolidate the current state-of-the-art technology regarding the role of autophagy in osteoclast function in both physiologic and pathologic conditions to have a more general view on this issue.
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Affiliation(s)
- Azadeh Montaseri
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Unit of Histology and Medical Embryology, Sapienza University of Rome, 00161 Rome, Italy; (A.M.); (A.R.); (A.F.)
| | - Claudia Giampietri
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Unit of Human Anatomy, Sapienza University of Rome, 00161 Rome, Italy;
| | - Michela Rossi
- Bone Physiopathology Research Unit, Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy;
| | - Anna Riccioli
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Unit of Histology and Medical Embryology, Sapienza University of Rome, 00161 Rome, Italy; (A.M.); (A.R.); (A.F.)
| | - Andrea Del Fattore
- Bone Physiopathology Research Unit, Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy;
| | - Antonio Filippini
- Department of Anatomy, Histology, Forensic Medicine and Orthopaedics, Unit of Histology and Medical Embryology, Sapienza University of Rome, 00161 Rome, Italy; (A.M.); (A.R.); (A.F.)
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46
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Chen J, Lazarenko OP, Zhao H, Wankhade UD, Pedersen K, Watt J, Ronis MJJ. Nox4 Expression Is Not Required for OVX-Induced Osteoblast Senescence and Bone Loss in Mice. JBMR Plus 2020; 4:e10376. [PMID: 32803108 PMCID: PMC7422714 DOI: 10.1002/jbm4.10376] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 05/04/2020] [Accepted: 05/09/2020] [Indexed: 12/12/2022] Open
Abstract
Estrogen deficiency and aging play critical roles in the pathophysiology of bone as a result of increased oxidative stress. It has been suggested that prevention of NADPH oxidase- (Nox-) dependent accumulation of ROS may be an approach to potentially minimize bone loss caused by these conditions. Using ovariectomized (OVX) and Nox4 gene-deletion mouse models, we investigated the role of Nox4 in OVX-induced bone loss and osteoblast senescence signaling. Six-month-old WT C57Bl6 mice were allocated to a sham control group, OVX, and OVX plus E2 treatment group for 8 weeks. Decreased bone mass including BMD and BMC were found in the OVX group compared with the sham control (p < 0.05); E2 treatment completely reversed OVX-induced bone loss. Interestingly, the prevention of OVX-induced bone loss by E2 was associated with the elimination of increased senescence signaling in bone osteoblastic cells from the OVX group. E2 blunted OVX-induced p53 and p21 overexpression, but not p16 and Nox4 in bone. In addition, 8- and 11-month-old Nox4 KO female mice were OVX for 8 weeks. Significant bone loss and increased bone osteoblastic cell senescence signaling occurred not only in Nox4 KO OVX mice compared with sham-operated animals, but also in 11-month-old Nox4 KO sham mice compared with 8-month-old Nox4 KO sham mice (p < 0.05). These data suggest that Nox4-mediated ROS in bone osteoblastic cells may be dispensable for sex steroid deficiency-induced bone loss and senescence. © 2020 The Authors. JBMR Plus published by Wiley Periodicals, Inc. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Jin‐Ran Chen
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
- Arkansas Children's Nutrition CenterLittle RockARUSA
| | - Oxana P Lazarenko
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
- Arkansas Children's Nutrition CenterLittle RockARUSA
| | - Haijun Zhao
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
- Arkansas Children's Nutrition CenterLittle RockARUSA
| | - Umesh D Wankhade
- Department of PediatricsUniversity of Arkansas for Medical SciencesLittle RockARUSA
- Arkansas Children's Nutrition CenterLittle RockARUSA
| | - Kim Pedersen
- Department of Pharmacology and Experimental TherapeuticsLouisiana State University Health Sciences CenterNew OrleansLAUSA
| | - James Watt
- Department of Pharmacology and Experimental TherapeuticsLouisiana State University Health Sciences CenterNew OrleansLAUSA
| | - Martin J J Ronis
- Department of Pharmacology and Experimental TherapeuticsLouisiana State University Health Sciences CenterNew OrleansLAUSA
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47
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Cooper LN, Ball HC, Vinyard CJ, Safadi FF, George JC, Thewissen JGM. Linking gene expression and phenotypic changes in the developmental and evolutionary origins of osteosclerosis in the ribs of bowhead whales (Balaena mysticetus). JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2020; 334:339-349. [PMID: 32729176 DOI: 10.1002/jez.b.22990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/04/2020] [Accepted: 06/18/2020] [Indexed: 12/22/2022]
Abstract
Bowhead whales are among the longest-lived mammals with an extreme lifespan of about 211 years. During the first 25 years of their lives, rib bones increase in mineral density and the medulla transitions from compact to trabecular bone. Molecular drivers associated with these phenotypic changes in bone remain unknown. This study assessed expression levels of osteogenic genes from samples of rib bones of bowheads. Samples were harvested from prenatal to 86-year-old whales, representing the first third of the bowhead lifespan. Fetal to 2-year-old bowheads showed expression levels consistent with the rapid deposition of the bone extracellular matrix. Sexually mature animals showed expression levels associated with low rates of osteogenesis and increased osteoclastogenesis. After the first 25 years of life, declines in osteogenesis corresponded with increased expression of EZH2, an epigenetic regulator of osteogenesis. These findings suggest EZH2 may be at least one epigenetic modifier that contributes to the age-related changes in the rib bone phenotype along with the transition from compact to trabecular bone. Ancient cetaceans and their fossil relatives also display these phenotypes, suggesting EZH2 may have shaped the skeleton of whales in evolutionary history.
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Affiliation(s)
- Lisa N Cooper
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, Ohio, USA.,Department of Anatomy and Neurobiology, Musculoskeletal Research Group, Northeast Ohio Medical University, Rootstown, Ohio, USA
| | - Hope C Ball
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, Ohio, USA.,Department of Anatomy and Neurobiology, Musculoskeletal Research Group, Northeast Ohio Medical University, Rootstown, Ohio, USA
| | - Christopher J Vinyard
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, Ohio, USA.,Department of Anatomy and Neurobiology, Musculoskeletal Research Group, Northeast Ohio Medical University, Rootstown, Ohio, USA
| | - Fayez F Safadi
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, Ohio, USA.,Department of Anatomy and Neurobiology, Musculoskeletal Research Group, Northeast Ohio Medical University, Rootstown, Ohio, USA.,Department of Orthopedics, Rebecca D. Considine Research Institute, Akron Children's Hospital, Akron, Ohio, USA
| | - John C George
- Department of Wildlife Management, The North Slope Borough, Utqiagvik, Alaska, USA
| | - Johannes G M Thewissen
- Department of Anatomy and Neurobiology, Northeast Ohio Medical University, Rootstown, Ohio, USA.,Department of Anatomy and Neurobiology, Musculoskeletal Research Group, Northeast Ohio Medical University, Rootstown, Ohio, USA
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48
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Prada D, López G, Solleiro-Villavicencio H, Garcia-Cuellar C, Baccarelli AA. Molecular and cellular mechanisms linking air pollution and bone damage. ENVIRONMENTAL RESEARCH 2020; 185:109465. [PMID: 32305664 PMCID: PMC7430176 DOI: 10.1016/j.envres.2020.109465] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 03/10/2020] [Accepted: 03/29/2020] [Indexed: 05/04/2023]
Abstract
Air pollution is the second most important risk factor associated with noncommunicable diseases after smoking. The effects of pollution on health are commonly attributable to particulate matter (PM), a complex mixture of particles suspended in the air. PM can penetrate the lower respiratory tract and has harmful direct and indirect effects on different organs and tissues. Direct effects are caused by the ability of PM components to cross the respiratory membrane and enter the bloodstream; indirect effects are systemic consequences of the local airway response. Recent work suggests that PM is an independent risk factor for low bone mineral density and osteoporosis-related fractures. Osteoporosis is a common age-related disease closely linked to bone fractures, with severe clinical consequences affecting quality of life, morbidity, and mortality. In this review, we discuss potential mechanisms behind the association between outdoor air pollution, especially PM, and bone damage. The discussion features four main mechanisms: 1) several different atmospheric pollutants can induce low-grade systemic inflammation, which affects bone metabolism through a specific effect of cytokines such as TNFα, IL-1β, IL-6, and IL-17 on osteoblast and osteoclast differentiation and function; 2) some pollutants, particularly certain gas and metal compounds, can cause oxidative damage in the airway and bone cells; 3) different groups of pollutants can act as endocrine disruptors when binding to the receptors in bone cells, changing their functioning; and 4) air pollution can directly and indirectly cause vitamin D deficiency. Characterizing these mechanisms will better define the physiopathology of bone damage, and recognizing air pollution as a modifiable risk factor for osteoporosis will inform environmental policies. Such knowledge will also guide the prevention of fractures due to fragility and help reduce health-related costs.
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Affiliation(s)
- Diddier Prada
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, 10032, USA; Unit for Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 14080, Mexico; Department of Biomedical Informatics, Faculty of Medicine, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| | - Gerard López
- Program of Support and Promotion of Research (AFINES), School of Medicine, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico; Department of Physiology, Universidad Nacional Autónoma de México, Mexico City, 14080, Mexico.
| | - Helena Solleiro-Villavicencio
- Program of Support and Promotion of Research (AFINES), School of Medicine, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico.
| | - Claudia Garcia-Cuellar
- Unit for Biomedical Research in Cancer, Instituto Nacional de Cancerología - Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Mexico City, 14080, Mexico.
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, 10032, USA.
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49
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Corrado A, Cici D, Rotondo C, Maruotti N, Cantatore FP. Molecular Basis of Bone Aging. Int J Mol Sci 2020; 21:ijms21103679. [PMID: 32456199 PMCID: PMC7279376 DOI: 10.3390/ijms21103679] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/18/2020] [Accepted: 05/21/2020] [Indexed: 12/16/2022] Open
Abstract
A decline in bone mass leading to an increased fracture risk is a common feature of age-related bone changes. The mechanisms underlying bone senescence are very complex and implicate systemic and local factors and are the result of the combination of several changes occurring at the cellular, tissue and structural levels; they include alterations of bone cell differentiation and activity, oxidative stress, genetic damage and the altered responses of bone cells to various biological signals and to mechanical loading. The molecular mechanisms responsible for these changes remain greatly unclear and many data derived from in vitro or animal studies appear to be conflicting and heterogeneous, probably due to the different experimental approaches; nevertheless, understanding the main physio-pathological processes that cause bone senescence is essential for the development of new potential therapeutic options for treating age-related bone loss. This article reviews the current knowledge concerning the molecular mechanisms underlying the pathogenesis of age-related bone changes.
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50
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Muszyńska M, Ambrożewicz E, Gęgotek A, Grynkiewicz G, Skrzydlewska E. Protective Effects of Vitamin K Compounds on the Proteomic Profile of Osteoblasts under Oxidative Stress Conditions. Molecules 2020; 25:molecules25081990. [PMID: 32340397 PMCID: PMC7222007 DOI: 10.3390/molecules25081990] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/21/2020] [Accepted: 04/22/2020] [Indexed: 12/21/2022] Open
Abstract
Oxidative stress, which accompanies the pathogenesis of many bone diseases, contributes to the reduction of osteoblast activity, resulting in the inhibition of differentiation. This study aimed to assess the effect of vitamins K1 and K2 (MK4 and MK7) on the proteomic profile of human osteoblasts cell line under oxidative conditions induced by hydrogen peroxide (H2O2). The analysis was performed using QExactiveHF mass spectrometer with a nanoelectrospray ionization source. The osteoblast protein exposed to oxidative stress and vitamin K was compared with the proteome of cells exposed only to oxidative stress. Our proteomic analysis identified 1234 proteins changed after 5 days, 967 after 15 days, and 1214 after 20 days of culture. We observed the most frequent changes in the expression of proteins with catalytic activity or protein/DNA binding properties (45% and 40%, respectively). Significant changes were also observed in proteins with transcription/translation regulator activity (2–6%), regulators of molecular functions (5–6%), signal transducers (1–4%), transporters (4–6%), and structural molecules (3–5%). Our results clearly show that vitamins K protect cells from H2O2-induced changes in protein expression, primarily through their effects on transcriptional regulators and transporter proteins. As a result, vitamins K can support the formation, remodeling, and mineralization of bone tissue.
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Affiliation(s)
- Marta Muszyńska
- Department of Analytical Chemistry, Medical University of Bialystok, 15-222 Bialystok, Poland; (M.M.); (E.A.); (A.G.)
| | - Ewa Ambrożewicz
- Department of Analytical Chemistry, Medical University of Bialystok, 15-222 Bialystok, Poland; (M.M.); (E.A.); (A.G.)
| | - Agnieszka Gęgotek
- Department of Analytical Chemistry, Medical University of Bialystok, 15-222 Bialystok, Poland; (M.M.); (E.A.); (A.G.)
| | - Grzegorz Grynkiewicz
- Łukasiewicz Research Network, Pharmaceutical Research Institute, 01-793 Warsaw, Poland;
| | - Elżbieta Skrzydlewska
- Department of Analytical Chemistry, Medical University of Bialystok, 15-222 Bialystok, Poland; (M.M.); (E.A.); (A.G.)
- Correspondence: ; Tel.: +48-85-748-5708
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