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Hong C, Li X, Zhang K, Huang Q, Li B, Xin H, Hu B, Meng F, Zhu X, Tang D, Hu C, Tao C, Li J, Cao Y, Wang H, Deng B, Wang S. Novel perspectives on autophagy-oxidative stress-inflammation axis in the orchestration of adipogenesis. Front Endocrinol (Lausanne) 2024; 15:1404697. [PMID: 38982993 PMCID: PMC11232368 DOI: 10.3389/fendo.2024.1404697] [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: 03/21/2024] [Accepted: 05/30/2024] [Indexed: 07/11/2024] Open
Abstract
Adipose tissue, an indispensable organ, fulfils the pivotal role of energy storage and metabolism and is instrumental in maintaining the dynamic equilibrium of energy and health of the organism. Adipocyte hypertrophy and adipocyte hyperplasia (adipogenesis) are the two primary mechanisms of fat deposition. Mature adipocytes are obtained by differentiating mesenchymal stem cells into preadipocytes and redifferentiation. However, the mechanisms orchestrating adipogenesis remain unclear. Autophagy, an alternative cell death pathway that sustains intracellular energy homeostasis through the degradation of cellular components, is implicated in regulating adipogenesis. Furthermore, adipose tissue functions as an endocrine organ, producing various cytokines, and certain inflammatory factors, in turn, modulate autophagy and adipogenesis. Additionally, autophagy influences intracellular redox homeostasis by regulating reactive oxygen species, which play pivotal roles in adipogenesis. There is a growing interest in exploring the involvement of autophagy, inflammation, and oxidative stress in adipogenesis. The present manuscript reviews the impact of autophagy, oxidative stress, and inflammation on the regulation of adipogenesis and, for the first time, discusses their interactions during adipogenesis. An integrated analysis of the role of autophagy, inflammation and oxidative stress will contribute to elucidating the mechanisms of adipogenesis and expediting the exploration of molecular targets for treating obesity-related metabolic disorders.
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Affiliation(s)
- Chun Hong
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Xinming Li
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Kunli Zhang
- Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Guangdong Provincial Key Laboratory of Livestock Disease Prevention Guangdong Province, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Qiuyan Huang
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Baohong Li
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Haiyun Xin
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Bin Hu
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Fanming Meng
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Xiangxing Zhu
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Dongsheng Tang
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, School of Life Sciences and Engineering, Foshan University, Foshan, China
| | - Chuanhuo Hu
- College of Animal Science and Technology, Guangxi University, Nanning, China
- Guangxi Key Laboratory of Animal Reproduction, Breeding and Disease Control, Guangxi University, Nanning, China
| | - Chenyu Tao
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, Hebei, China
| | - Jianhao Li
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
| | - Yang Cao
- Branch of Animal Husbandry, Jilin Academy of Agricultural Science, Gongzhuling, China
| | - Hai Wang
- Chinese Academy of Sciences (CAS) Key Laboratory of Regenerative Biology, Guangzhou Institutes of Biomedicine and Health- Hong Kong University (GIBH-HKU) Guangdong-Hong Kong Stem Cell and Regenerative Medicine Research Centre, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Bo Deng
- Division of Nephrology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sutian Wang
- State Key Laboratory of Swine and Poultry Breeding Industry, Guangdong Key Laboratory of Animal Breeding and Nutrition, Institute of Animal Science, Guangdong Academy of Agricultural Sciences, Guangzhou, China
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, China
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Wang XS, Chen Y, Zhao YW, Chen MW, Wang H. Assessing the association between a sedentary lifestyle and prevalence of primary osteoporosis: a community-based cross-sectional study among Chinese population. BMJ Open 2024; 14:e080243. [PMID: 38834324 PMCID: PMC11163664 DOI: 10.1136/bmjopen-2023-080243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 05/21/2024] [Indexed: 06/06/2024] Open
Abstract
OBJECTIVES To reveal the association between a sedentary lifestyle and the prevalence of primary osteoporosis (POP). DESIGN A community-based cross-sectional study was conducted. SETTING This study was conducted in communities in Hefei city, Anhui province, China. PARTICIPANTS A total of 1346 residents aged 40 and above underwent POP screening via calcaneus ultrasound bone mineral density (BMD) testing and completed a questionnaire survey. OUTCOME MEASURES The average daily sitting time was included in the study variable and used to assess sedentary behaviour. The 15 control variables included general information, dietary information and life behaviour information. Logistic regression was used to analyse the association between the POP prevalence and study or control variables in different models. RESULTS 1346 participants were finally included in the study. According to the 15 control variables, the crude model and 4 models were established. The analysis revealed that the average daily sitting time showed a significant correlation with the prevalence of POP in the crude model (OR=2.02, 95% CI=1.74 to 2.36, p<0.001), Model 1 (OR=2.65, 95% CI=2.21 to 3.17, p<0.001), Model 2 (OR=2.63, 95% CI=2.19 to 3.15, p<0.001), Model 3 (OR=2.62, 95% CI=2.18 to 3.15, p<0.001) and Model 4 (OR=2.58, 95% CI=2.14 to 3.11, p<0.001). Besides, gender, age and body mass index showed a significant correlation with the POP prevalence in all models. CONCLUSIONS This study suggests a potential association between a sedentary lifestyle and the prevalence of POP within the Chinese population. Modifying sedentary behaviours could contribute to a reduction in POP risk. However, longitudinal cohort studies are necessary to confirm this hypothesis in the future.
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Affiliation(s)
- Xiao-Song Wang
- Center for Big Data and Population Health of IHM, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Epidemiology and Biostatistics, Anhui Medical University, Hefei, Anhui, China
| | - Yong Chen
- Department of Social Medicine and Health Management, Anhui Medical University, Hefei, Anhui, China
| | - Yun-Wu Zhao
- Center for Big Data and Population Health of IHM, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Ming-Wei Chen
- Center for Big Data and Population Health of IHM, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Heng Wang
- Center for Big Data and Population Health of IHM, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
- Department of Epidemiology and Biostatistics, Anhui Medical University, Hefei, Anhui, China
- Department of Social Medicine and Health Management, Anhui Medical University, Hefei, Anhui, China
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Ding S, Ren T, Song S, Peng C, Liu C, Wu J, Chang X. Combined application of mesenchymal stem cells and different glucocorticoid dosing alleviates osteoporosis in SLE murine models. Immun Inflamm Dis 2024; 12:e1319. [PMID: 38888448 PMCID: PMC11184931 DOI: 10.1002/iid3.1319] [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: 11/21/2023] [Revised: 05/23/2024] [Accepted: 06/03/2024] [Indexed: 06/20/2024] Open
Abstract
OBJECTIVE Bone mesenchymal stem cells (BMSCs) have been tentatively applied in the treatment of glucocorticoid-induced osteoporosis (GIOP) and systemic lupus erythematosus (SLE). However, the effects of BMSCs on osteoporosis within the context of glucocorticoid (GC) application in SLE remain unclear. Our aim was to explore the roles of BMSCs and different doses of GC interventions on osteoporosis in SLE murine models. METHODS MRL/MpJ-Faslpr mice were divided into eight groups with BMSC treatment and different dose of GC intervention. Three-dimensional imaging analysis and hematoxylin and eosin (H&E) staining were performed to observe morphological changes. The concentrations of osteoprotegerin (OPG) and receptor activator of nuclear factor κB ligand (RANKL) in serum were measured by enzyme-linked immunosorbent assay (ELISA). The subpopulation of B cells and T cells in bone marrows and spleens were analyzed by flow cytometry. Serum cytokines and chemokines were assessed using Luminex magnetic bead technology. RESULTS BMSCs ameliorated osteoporosis in murine SLE models by enhancing bone mass, improving bone structure, and promoting bone formation through increased bone mineral content and optimization of trabecular morphology. BMSC and GC treatments reduced the number of B cells in bone marrows, but the effect was not significant in spleens. BMSCs significantly promoted the expression of IL-10 while reducing IL-18. Moreover, BMSCs exert immunomodulatory effects by reducing Th17 expression and rectifying the Th17/Treg imbalance. CONCLUSION BMSCs effectively alleviate osteoporosis induced by SLE itself, as well as osteoporosis resulting from SLE combined with various doses of GC therapy. The therapeutic effects of BMSCs appear to be mediated by their influence on bone marrow B cells, T cell subsets, and associated cytokines. High-dose GC treatment exerts a potent anti-inflammatory effect but may hinder the immunotherapeutic potential of BMSCs. Our research may offer valuable guidance to clinicians regarding the use of BMSC treatment in SLE and provide insights into the judicious use of GCs in clinical practice.
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Affiliation(s)
- Sisi Ding
- Jiangsu Institute of Clinical ImmunologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Tian Ren
- Department of RheumatologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Saizhe Song
- Jiangsu Institute of Clinical ImmunologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Cheng Peng
- Department of RheumatologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Cuiping Liu
- Jiangsu Institute of Clinical ImmunologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Jian Wu
- Department of RheumatologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
| | - Xin Chang
- Department of RheumatologyThe First Affiliated Hospital of Soochow UniversitySuzhouChina
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Zhang J, Bai H, Bai M, Wang X, Li Z, Xue H, Wang J, Cui Y, Wang H, Wang Y, Zhou R, Zhu X, Xu M, Zhao X, Liu H. Bisphosphonate-incorporated coatings for orthopedic implants functionalization. Mater Today Bio 2023; 22:100737. [PMID: 37576870 PMCID: PMC10413202 DOI: 10.1016/j.mtbio.2023.100737] [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: 03/20/2023] [Revised: 06/06/2023] [Accepted: 07/19/2023] [Indexed: 08/15/2023] Open
Abstract
Bisphosphonates (BPs), the stable analogs of pyrophosphate, are well-known inhibitors of osteoclastogenesis to prevent osteoporotic bone loss and improve implant osseointegration in patients suffering from osteoporosis. Compared to systemic administration, BPs-incorporated coatings enable the direct delivery of BPs to the local area, which will precisely enhance osseointegration and bone repair without the systemic side effects. However, an elaborate and comprehensive review of BP coatings of implants is lacking. Herein, the cellular level (e.g., osteoclasts, osteocytes, osteoblasts, osteoclast precursors, and bone mesenchymal stem cells) and molecular biological regulatory mechanism of BPs in regulating bone homeostasis are overviewed systematically. Moreover, the currently available methods (e.g., chemical reaction, porous carriers, and organic material films) of BP coatings construction are outlined and summarized in detail. As one of the key directions, the latest advances of BP-coated implants to enhance bone repair and osseointegration in basic experiments and clinical trials are presented and critically evaluated. Finally, the challenges and prospects of BP coatings are also purposed, and it will open a new chapter in clinical translation for BP-coated implants.
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Affiliation(s)
- Jiaxin Zhang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Haotian Bai
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Miao Bai
- Department of Ocular Fundus Disease, Ophthalmology Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Xiaonan Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - ZuHao Li
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Haowen Xue
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Jincheng Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Yutao Cui
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Hui Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Yanbing Wang
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Rongqi Zhou
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Xiujie Zhu
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Mingwei Xu
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - Xin Zhao
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
| | - He Liu
- Orthopedic Institute of Jilin Province, Orthopedic Medical Center, The Second Hospital of Jilin University, Changchun 130041, PR China
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5
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Zeng C, Wang S, Gu H, Chen F, Wang Z, Li J, Xie Z, Feng P, Shen H, Wu Y. Galangin mitigates glucocorticoid-induced osteoporosis by activating autophagy of BMSCs via triggering the PKA/CREB signaling pathway. Acta Biochim Biophys Sin (Shanghai) 2023; 55:1275-1287. [PMID: 37365870 PMCID: PMC10448057 DOI: 10.3724/abbs.2023063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 02/20/2023] [Indexed: 04/05/2023] Open
Abstract
Glucocorticoid-induced osteoporosis (GIOP), one of the most common and serious adverse effects associated with glucocorticoid administration, manifests as decreased bone formation and increased bone resorption, eventually culminating in bone loss. Galangin (GAL) is a flavonoid extracted from the medicinal herbal galangal that possesses a variety of pharmacological activities and can inhibit osteoclastogenesis. However, the effects of GAL on GIOP remain unclear. Our study aims to explore the effects of GAL on GIOP in mice and the underlying mechanism. Our results show that GAL markedly mitigates the severity of dexamethasone (Dex)-induced osteoporosis in mice and potentiates osteogenic differentiation in mouse bone marrow-derived mesenchymal stem cells (BMSCs). Furthermore, GAL also significantly counteracts Dex-mediated suppression of osteogenic differentiation and autophagy in human BMSCs. GAL augments PKA/CREB-mediated autophagic flux in BMSCs and the bones of osteoporotic mice. GAL-mediated osteogenic differentiation in Dex-treated BMSCs is significantly decreased by the PKA inhibitor H89 and autophagy inhibitor 3-methyladenine. Collectively, our data indicate that GAL can ameliorate GIOP, partly by augmenting the mineralization of BMSCs by potentiating PKA/CREB-mediated autophagic flux, highlighting its potential therapeutic use in treating glucocorticoid-related osteoporosis.
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Affiliation(s)
- Chenying Zeng
- Center for BiotherapyEighth Affiliated Hospital of Sun Yat-sen UniversityShenzhen518033China
| | - Shan Wang
- Center for BiotherapyEighth Affiliated Hospital of Sun Yat-sen UniversityShenzhen518033China
| | - Huimin Gu
- Center for BiotherapyEighth Affiliated Hospital of Sun Yat-sen UniversityShenzhen518033China
| | - Fenglei Chen
- Department of OrthopedicsEighth Affiliated Hospital of Sun Yat-sen UniversityShenzhen518033China
| | - Ziming Wang
- Department of OrthopedicsEighth Affiliated Hospital of Sun Yat-sen UniversityShenzhen518033China
| | - Jinteng Li
- Department of OrthopedicsEighth Affiliated Hospital of Sun Yat-sen UniversityShenzhen518033China
| | - Zhongyu Xie
- Department of OrthopedicsEighth Affiliated Hospital of Sun Yat-sen UniversityShenzhen518033China
| | - Pei Feng
- Center for BiotherapyEighth Affiliated Hospital of Sun Yat-sen UniversityShenzhen518033China
| | - Huiyong Shen
- Department of OrthopedicsEighth Affiliated Hospital of Sun Yat-sen UniversityShenzhen518033China
- Department of OrthopedicsSun Yat-sen Memorial Hospital of Sun Yat-sen UniversityGuangzhou510120China
| | - Yanfeng Wu
- Center for BiotherapyEighth Affiliated Hospital of Sun Yat-sen UniversityShenzhen518033China
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6
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Ding W, Zhou Q, Lu Y, Wei Q, Tang H, Zhang D, Liu Z, Wang G, Wu D. ROS-scavenging hydrogel as protective carrier to regulate stem cells activity and promote osteointegration of 3D printed porous titanium prosthesis in osteoporosis. Front Bioeng Biotechnol 2023; 11:1103611. [PMID: 36733970 PMCID: PMC9887181 DOI: 10.3389/fbioe.2023.1103611] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 01/04/2023] [Indexed: 01/18/2023] Open
Abstract
Stem cell-based therapy has drawn attention as an alternative option for promoting prosthetic osteointegration in osteoporosis by virtue of its unique characteristics. However, estrogen deficiency is the main mechanism of postmenopausal osteoporosis. Estrogen, as an effective antioxidant, deficienncy also results in the accumulation of reactive oxygen species (ROS) in the body, affecting the osteogenic differentiation of stem cells and the bone formation i osteoporosis. In this study, we prepared a ROS-scavenging hydrogel by crosslinking of epigallocatechin-3-gallate (EGCG), 3-acrylamido phenylboronic acid (APBA) and acrylamide. The engineered hydrogel can scavenge ROS efficiently, enabling it to be a cell carrier of bone marrow-derived mesenchymal stem cells (BMSCs) to protect delivered cells from ROS-mediated death and osteogenesis inhibition, favorably enhancing the tissue repair potential of stem cells. Further in vivo investigations seriously demonstrated that this ROS-scavenging hydrogel encapsulated with BMSCs can prominently promote osteointegration of 3D printed microporous titanium alloy prosthesis in osteoporosis, including scavenging accumulated ROS, inducing macrophages to polarize toward M2 phenotype, suppressing inflammatory cytokines expression, and improving osteogenesis related markers (e.g., ALP, Runx-2, COL-1, BSP, OCN, and OPN). This work provides a novel strategy for conquering the challenge of transplanted stem cells cannot fully function in the impaired microenvironment, and enhancing prosthetic osteointegration in osteoporosis.
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Affiliation(s)
- Wenbin Ding
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Qirong Zhou
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Yifeng Lu
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Qiang Wei
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Hao Tang
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Donghua Zhang
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Zhixiao Liu
- Department of Histology and Embryology, College of Basic Medicine, Shanghai, China
| | - Guangchao Wang
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, China,*Correspondence: Guangchao Wang, ; Dajiang Wu,
| | - Dajiang Wu
- Department of Orthopaedics, Changhai Hospital, Second Military Medical University, Shanghai, China,*Correspondence: Guangchao Wang, ; Dajiang Wu,
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Wang L, Li J, Yu C. SENP3 Aggravates Renal Tubular Epithelial Cell Apoptosis in Lipopolysaccharide-Induced Acute Kidney Injury via deSUMOylation of Drp1. KIDNEY DISEASES (BASEL, SWITZERLAND) 2022; 8:424-435. [PMID: 36466072 PMCID: PMC9710481 DOI: 10.1159/000525308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 05/30/2022] [Indexed: 06/17/2023]
Abstract
BACKGROUND Sepsis causes acute kidney injury (AKI) in critically ill patients, although the mechanisms underlying the pathophysiology are not fully understood. SUMO-specific proteases 3 (SENP3), a member of the deSUMOylating enzyme family, is known as a redox sensor and could regulate multiple cellular signaling pathways. However, the role of SENP3 in septic AKI remains unclear. OBJECTIVES The purpose of this study was to investigate the role of SENP3 in lipopolysaccharide (LPS)-induced AKI model. METHODS C57BL/6 mice were given intraperitoneal injection of LPS (10 mg/kg). NRK-52E cells were treated with LPS in vitro. The SENP3 protein expression was analyzed by Western blotting. The levels of reactive oxygen species (ROS) in cells were measured using DCFH-DA. SENP3-siRNA or SENP3-plasmid was, respectively, transfected into NRK-52E cells to knock down or overexpress the SENP3 expression. Western blotting was performed to analyze the protein expression of cleaved caspase 3, cytochrome c, and dynamin-related protein 1 (Drp1). The mitochondrial membrane potential was measured using JC-1 assay kit. Co-immunoprecipitation was used to determine the interaction of Drp1 and SMUO2/3. RESULTS SENP3 protein expression was obviously increased in renal tissues from the mouse model of LPS-induced AKI. Accordingly, SENP3 expression was upregulated in NRK-52E cells treated with LPS in a ROS-dependent manner in vitro. Knockdown of SENP3 dramatically ameliorated LPS-induced apoptosis of NRK-52E cells, whereas overexpression of SENP3 further aggravated LPS-induced apoptosis of NRK-52E cells. Mechanistically, SENP3 triggered Drp1 recruitment to mitochondria by increasing the deSUMOylation of Drp1. CONCLUSION SENP3 aggravated renal tubular epithelial cell apoptosis in LPS-induced AKI via Drp1 deSUMOylation manner.
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Hao J, Bei J, Li Z, Han M, Ma B, Ma P, Zhou X. Qing`e Pill Inhibits Osteoblast Ferroptosis via ATM Serine/Threonine Kinase (ATM) and the PI3K/AKT Pathway in Primary Osteoporosis. Front Pharmacol 2022; 13:902102. [PMID: 35865965 PMCID: PMC9294279 DOI: 10.3389/fphar.2022.902102] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/23/2022] [Indexed: 12/24/2022] Open
Abstract
Osteoporosis (OP) is an aging-related disease that is the main etiology of fragility fracture. Qing’e Pill (QEP) is a mixture of traditional Chinese medicine (TCM) consisting of Eucommia ulmoides Oliv., Psoralea corylifolia L., Juglans regia L., and Allium sativum L. QEP has an anti-osteoporosis function, but the underlying mechanism remains unclear. In this study, online databases were employed to determine the chemical compounds of QEP and potential target genes in osteoporosis. Potential pathways associated with genes were defined by Gene Ontology (GO) and Kyoto Encyclopaedia of Genes and Genomes (KEGG) databases. A compound–target–disease network was constructed. Hub genes screened through Cytoscape were intersected with the FerrDB database. The potential key genes were validated in HFOB 1.19 cells, and rat models were ovariectomized through Western blot, RT-qPCR, ELISA, HE staining, immunohistochemistry, and immunofluorescence analyses. The intersection targets of QEP and osteoporosis contained 121 proteins, whereas the target–pathway network included 156 pathways. We filtered five genes that stood out in the network analysis for experimental verification. The experiments validated that QEP exerted therapeutic effects on osteoporosis by inhibiting ferroptosis and promoting cell survival via the PI3K/AKT pathway and ATM. In conclusion, combining the application of network analysis and experimental verification may provide an efficient method to validate the molecular mechanism of QEP on osteoporosis.
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Affiliation(s)
- Jian Hao
- Orthopedics Department, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
- *Correspondence: Jian Hao, ; Xianhu Zhou,
| | - Jiaxin Bei
- Laboratory of Interventional Radiology, Department of Minimally Invasive Interventional Radiology and Department of Radiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhenhan Li
- School of Clinical, Wannan Medical College, Wuhu, China
| | - Mingyuan Han
- Orthopedics Department, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Boyuan Ma
- Orthopedics Department, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
| | - Pengyi Ma
- Department of Orthopaedic, Graduate School, Tianjin Medical University, Tianjin, China
| | - Xianhu Zhou
- Orthopedics Department, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, China
- *Correspondence: Jian Hao, ; Xianhu Zhou,
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9
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Chang X, Xu S, Zhang H. Regulation of bone health through physical exercise: Mechanisms and types. Front Endocrinol (Lausanne) 2022; 13:1029475. [PMID: 36568096 PMCID: PMC9768366 DOI: 10.3389/fendo.2022.1029475] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Accepted: 11/15/2022] [Indexed: 12/12/2022] Open
Abstract
Osteoporosis, characterized by bone mineral density reduction, bone mass loss, increased bone fragility, and propensity to fractures, is a common disease in older individuals and one of the most serious health problems worldwide. The imbalance between osteoblasts and osteoclasts results in the predominance of bone resorption and decreased bone formation. In recent years, it has been found that regular and proper exercise not only helps prevent the occurrence of osteoporosis but also adds benefits to osteoporosis therapy; accordingly, bone homeostasis is closely associated with mechanical stress and the intricate crosstalk between osteoblasts and osteoclasts. In this review, we summarize the mechanisms of exercise on osteoporosis and provide new proposals for the prevention and treatment of osteoporosis.
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Affiliation(s)
- Xinyu Chang
- Department of Traumatic Orthopedics, Changhai Hospital, Naval Medical University, Shanghai, China
- *Correspondence: Xinyu Chang, ; Sheng Xu, ; Hao Zhang,
| | - Sheng Xu
- National Key Laboratory of Medical Immunology and Institute of Immunology, Institute of Immunology, Naval Medical University, Shanghai, China
- *Correspondence: Xinyu Chang, ; Sheng Xu, ; Hao Zhang,
| | - Hao Zhang
- Department of Traumatic Orthopedics, the First Affiliated Hospital of Naval Medical University, Naval Medical University, Shanghai, China
- *Correspondence: Xinyu Chang, ; Sheng Xu, ; Hao Zhang,
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