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Yue C, Cui G, Cheng Y, Zhang X, Sheng H, Yang Y, Guo J, Liu Y, Xu B. Aucubin suppresses TLR4/NF-κB signalling to shift macrophages toward M2 phenotype in glucocorticoid-associated osteonecrosis of the femoral head. J Cell Mol Med 2024; 28:e18583. [PMID: 39123292 PMCID: PMC11315675 DOI: 10.1111/jcmm.18583] [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: 03/16/2024] [Revised: 07/17/2024] [Accepted: 07/26/2024] [Indexed: 08/12/2024] Open
Abstract
In this study, we investigated whether the ability of aucubin to mitigate the pathology of GONFH involves suppression of TLR4/NF-κB signalling and promotion of macrophage polarization to an M2 phenotype. In necrotic bone tissues from GONFH patients, we compared levels of pro-inflammatory M1 macrophages and anti-inflammatory M2 macrophages as well as levels of TLR4/NF-κB signalling. In a rat model of GONFH, we examined the effects of aucubin on these parameters. We further explored its mechanism of action in a cell culture model of M1 macrophages. Necrotic bone tissues from GONFH patients contained a significantly increased macrophage M1/M2 ratio, and higher levels of TLR4, MYD88 and NF-κB p65 than bone tissues from patients with hip osteoarthritis. Treating GONFH rats with aucubin mitigated bone necrosis and demineralization as well as destruction of trabecular bone and marrow in a dose-dependent manner, based on micro-computed tomography. These therapeutic effects were associated with a decrease in the overall number of macrophages, decrease in the proportion of M1 macrophages, increase in the proportion of M2 macrophages, and downregulation of TLR4, MYD88 and NF-κB p65. These effects in vivo were confirmed by treating cultures of M1 macrophage-like cells with aucubin. Aucubin mitigates bone pathology in GONFH by suppressing TLR4/NF-κB signalling to shift macrophages from a pro- to anti-inflammatory phenotype.
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Affiliation(s)
- Chen Yue
- Department of OrthopedicsLuoyang Orthopedic Hospital of Henan Province, Orthopedic Hospital of Henan ProvinceLuoyangHenanChina
| | - Guofeng Cui
- Department of OrthopedicsLuoyang Central Hospital Affiliated to Zhengzhou UniversityLuoyangHenanChina
| | - Yan Cheng
- Department of OrthopedicsLuoyang Orthopedic Hospital of Henan Province, Orthopedic Hospital of Henan ProvinceLuoyangHenanChina
| | - Xue Zhang
- Department of OrthopedicsLuoyang Orthopedic Hospital of Henan Province, Orthopedic Hospital of Henan ProvinceLuoyangHenanChina
| | - Hong‐feng Sheng
- Department of OrthopedicsTongde Hospital of Zhejiang ProvinceHangzhouZhejiangChina
| | - Yidan Yang
- Department of OrthopedicsLuoyang Orthopedic Hospital of Henan Province, Orthopedic Hospital of Henan ProvinceLuoyangHenanChina
| | - Jiayi Guo
- Department of OrthopedicsLuoyang Orthopedic Hospital of Henan Province, Orthopedic Hospital of Henan ProvinceLuoyangHenanChina
| | - Youwen Liu
- Department of OrthopedicsLuoyang Orthopedic Hospital of Henan Province, Orthopedic Hospital of Henan ProvinceLuoyangHenanChina
| | - Bin Xu
- Department of OrthopedicsTongde Hospital of Zhejiang ProvinceHangzhouZhejiangChina
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Ding Q, Xiong B, Liu J, Rong X, Tian Z, Chen L, Tao H, Li H, Zeng P. Bioinformatics analysis of PANoptosis regulators in the diagnosis and subtyping of steroid-induced osteonecrosis of the femoral head. Medicine (Baltimore) 2024; 103:e37837. [PMID: 38701259 PMCID: PMC11062652 DOI: 10.1097/md.0000000000037837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 03/18/2024] [Indexed: 05/05/2024] Open
Abstract
In this study, we aimed to investigate the involvement of PANoptosis, a form of regulated cell death, in the development of steroid-induced osteonecrosis of the femoral head (SONFH). The underlying pathogenesis of PANoptosis in SONFH remains unclear. To address this, we employed bioinformatics approaches to analyze the key genes associated with PANoptosis. Our analysis was based on the GSE123568 dataset, allowing us to investigate both the expression profiles of PANoptosis-related genes (PRGs) and the immune profiles in SONFHallowing us to investigate the expression profiles of PRGs as well as the immune profiles in SONFH. We conducted cluster classification based on PRGs and assessed immune cell infiltration. Additionally, we used the weighted gene co-expression network analysis (WGCNA) algorithm to identify cluster-specific hub genes. Furthermore, we developed an optimal machine learning model to identify the key predictive genes responsible for SONFH progression. We also constructed a nomogram model with high predictive accuracy for assessing risk factors in SONFH patients, and validated the model using external data (area under the curve; AUC = 1.000). Furthermore, we identified potential drug targets for SONFH through the Coremine medical database. Using the optimal machine learning model, we found that 2 PRGs, CASP1 and MLKL, were significantly correlated with the key predictive genes and exhibited higher expression levels in SONFH. Our analysis revealed the existence of 2 distinct PANoptosis molecular subtypes (C1 and C2) within SONFH. Importantly, we observed significant variations in the distribution of immune cells across these subtypes, with C2 displaying higher levels of immune cell infiltration. Gene set variation analysis indicated that C2 was closely associated with multiple immune responses. In conclusion, our study sheds light on the intricate relationship between PANoptosis and SONFH. We successfully developed a risk predictive model for SONFH patients and different SONFH subtypes. These findings enhance our understanding of the pathogenesis of SONFH and offer potential insights into therapeutic strategies.
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Affiliation(s)
- Qiang Ding
- The First Clinical Medical College, Guangxi University of Chinese Medicine, Nanning, China
| | - Bo Xiong
- Yulin Orthopedic Hospital of Integrated Traditional Chinese and Western Medicine, Yulin, China
| | - Jinfu Liu
- The First Clinical Medical College, Guangxi University of Chinese Medicine, Nanning, China
| | - Xiangbin Rong
- Ruikang Hospital Affiliated to Guangxi University of Chinese Medicine, Nanning, China
| | - Zhao Tian
- The First Clinical Medical College, Guangxi University of Chinese Medicine, Nanning, China
| | - Limin Chen
- The First Clinical Medical College, Guangxi University of Chinese Medicine, Nanning, China
| | - Hongcheng Tao
- The First Clinical Medical College, Guangxi University of Chinese Medicine, Nanning, China
| | - Hao Li
- The First Clinical Medical College, Guangxi University of Chinese Medicine, Nanning, China
| | - Ping Zeng
- Guangxi Traditional Chinese Medical University Affiliated First Hospital, Nanning, China
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3
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Wang Q, Yang Z, Li Q, Zhang W, Kang P. Lithium prevents glucocorticoid-induced osteonecrosis of the femoral head by regulating autophagy. J Cell Mol Med 2024; 28:e18385. [PMID: 38801405 PMCID: PMC11129728 DOI: 10.1111/jcmm.18385] [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: 10/19/2023] [Revised: 04/17/2024] [Accepted: 04/27/2024] [Indexed: 05/29/2024] Open
Abstract
Autophagy may play an important role in the occurrence and development of glucocorticoid-induced osteonecrosis of the femoral head (GC-ONFH). Lithium is a classical autophagy regulator, and lithium can also activate osteogenic pathways, making it a highly promising therapeutic agent for GC-ONFH. We aimed to evaluate the potential therapeutic effect of lithium on GC-ONFH. For in vitro experiments, primary osteoblasts of rats were used for investigating the underlying mechanism of lithium's protective effect on GC-induced autophagy levels and osteogenic activity dysfunction. For in vivo experiments, a rat model of GC-ONFH was used for evaluating the therapeutic effect of oral lithium on GC-ONFH and underlying mechanism. Findings demonstrated that GC over-activated the autophagy of osteoblasts and reduced their osteogenic activity. Lithium reduced the over-activated autophagy of GC-treated osteoblasts through PI3K/AKT/mTOR signalling pathway and increased their osteogenic activity. Oral lithium reduced the osteonecrosis rates in a rat model of GC-ONFH, and restrained the increased expression of autophagy related proteins in bone tissues through PI3K/AKT/mTOR signalling pathway. In conclusion, lithium can restrain over-activated autophagy by activating PI3K/AKT/mTOR signalling pathway and up-regulate the expression of genes for bone formation both in GC induced osteoblasts and in a rat model of GC-ONFH. Lithium may be a promising therapeutic agent for GC-ONFH. However, the role of autophagy in the pathogenesis of GC-ONFH remains controversial. Studies are still needed to further explore the role of autophagy in the pathogenesis of GC-ONFH, and the efficacy of lithium in the treatment of GC-ONFH and its underlying mechanisms.
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Affiliation(s)
- Qiuru Wang
- Department of Orthopedic Surgery, West China HospitalSichuan UniversityChengduChina
| | - Zhouyuan Yang
- Department of Orthopedic Surgery, West China HospitalSichuan UniversityChengduChina
| | - Qianhao Li
- Department of Orthopedic Surgery, West China HospitalSichuan UniversityChengduChina
| | - Wanli Zhang
- Public Laboratory Technology Center, West China HospitalSichuan UniversityChengduChina
| | - Pengde Kang
- Department of Orthopedic Surgery, West China HospitalSichuan UniversityChengduChina
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Yu Y, Jiang Y, Ge H, Fan X, Gao H, Zhou Z. HIF-1α in cartilage homeostasis, apoptosis, and glycolysis in mice with steroid-induced osteonecrosis of the femoral head. J Cell Physiol 2024; 239:e31224. [PMID: 38481029 DOI: 10.1002/jcp.31224] [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: 11/24/2023] [Revised: 02/04/2024] [Accepted: 02/06/2024] [Indexed: 05/16/2024]
Abstract
With the prevalence of coronavirus disease 2019, the administration of glucocorticoids (GCs) has become more widespread. Treatment with high-dose GCs leads to a variety of problems, of which steroid-induced osteonecrosis of the femoral head (SONFH) is the most concerning. Since hypoxia-inducible factor 1α (HIF-1α) is a key factor in cartilage development and homeostasis, it may play an important role in the development of SONFH. In this study, SONFH models were established using methylprednisolone (MPS) in mouse and its proliferating chondrocytes to investigate the role of HIF-1α in cartilage differentiation, extracellular matrix (ECM) homeostasis, apoptosis and glycolysis in SONFH mice. The results showed that MPS successfully induced SONFH in vivo and vitro, and MPS-treated cartilage and chondrocytes demonstrated disturbed ECM homeostasis, significantly increased chondrocyte apoptosis rate and glycolysis level. However, compared with normal mice, not only the expression of genes related to collagens and glycolysis, but also chondrocyte apoptosis did not demonstrate significant differences in mice co-treated with MPS and HIF-1α inhibitor. And the effects observed in HIF-1α activator-treated chondrocytes were similar to those induced by MPS. And HIF-1α degraded collagens in cartilage by upregulating its downstream target genes matrix metalloproteinases. The results of activator/inhibitor of endoplasmic reticulum stress (ERS) pathway revealed that the high apoptosis rate induced by MPS was related to the ERS pathway, which was also affected by HIF-1α. Furthermore, HIF-1α affected glucose metabolism in cartilage by increasing the expression of glycolysis-related genes. In conclusion, HIF-1α plays a vital role in the pathogenesis of SONFH by regulating ECM homeostasis, chondrocyte apoptosis, and glycolysis.
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Affiliation(s)
- Yaling Yu
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Yixin Jiang
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Hongfan Ge
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Xiaoli Fan
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Hang Gao
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - Zhenlei Zhou
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
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Mai YX, Li ZP, Pang FX, Zhou ST, Li N, Wang YY, Zhang JF. Aucubin Promotes Osteogenic Differentiation and Facilitates Bone Formation through the lncRNA-H19 Driven Wnt/ β-Catenin Signaling Regulatory Axis. Stem Cells Int 2024; 2024:5388064. [PMID: 38633381 PMCID: PMC11022505 DOI: 10.1155/2024/5388064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 03/01/2024] [Accepted: 03/14/2024] [Indexed: 04/19/2024] Open
Abstract
Objectives Traditional Chinese medicine Cortex Eucommiae has been used to treat bone fracture for hundreds of years, which exerts a significant improvement in fracture healing. Aucubin, a derivative isolated from Cortex Eucommiae, has been demonstrated to possess anti-inflammatory, immunoregulatory, and antioxidative potential. In the present study, our aim was to explore its function in bone regeneration and elucidate the underlying mechanism. Materials and Methods The effects of Aucubin on osteoblast and osteoclast were examined in mouse bone marrow-derived mesenchymal stem cells (BM-MSCs) and RAW 264.7 cells, respectively. Moreover, the lncRNA H19 and Wnt/β-catenin signaling were detected by qPCR examination, western blotting, and luciferase activity assays. Using the femur fracture mice model, the in vivo effect of Aucubin on bone formation was monitored by X-ray, micro-CT, histomorphometry, and immunohistochemistry staining. Results In the present study, Aucubin was found to significantly promote osteogenic differentiation in vitro and stimulated bone formation in vivo. Regarding to the underlying mechanism, H19 was found to be obviously upregulated by Aucubin in MSCs and thus induced the activation of Wnt/β-catenin signaling. Moreover, H19 knockdown partially reversed the Aucubin-induced osteogenic differentiation and successfully suppressed the activation of Wnt/β-catenin signaling. We therefore suggested that Aucubin induced the activation of Wnt/β-catenin signaling through promoting H19 expression. Conclusion Our results demonstrated that Aucubin promoted osteogenesis in vitro and facilitated fracture healing in vivo through the H19-Wnt/β-catenin regulatory axis.
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Affiliation(s)
- Yong-xin Mai
- Cancer Center, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen 518000, Guangdong, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Zhi-peng Li
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
- Department of Rehabilitation, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China
| | - Feng-xiang Pang
- Department of Traditional Chinese Medicine, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510630, China
| | - Shu-ting Zhou
- Cancer Center, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen 518000, Guangdong, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Nan Li
- Cancer Center, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen 518000, Guangdong, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Yu-yan Wang
- Cancer Center, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen 518000, Guangdong, China
| | - Jin-fang Zhang
- Cancer Center, Shenzhen Hospital (Futian) of Guangzhou University of Chinese Medicine, Shenzhen 518000, Guangdong, China
- Lingnan Medical Research Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
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LI X, LIN X, CHEN D, LIU H. B-cell lymphoma-2 phosphorylation at Ser70 site-related autophagy mediates puerarin-inhibited the apoptosis of MC3T3-E1 cells during osteoblastogenesis. J TRADIT CHIN MED 2024; 44:27-34. [PMID: 38213236 PMCID: PMC10774730 DOI: 10.19852/j.cnki.jtcm.20231024.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 12/22/2022] [Indexed: 01/13/2024]
Abstract
OBJECTIVE To explore the relationship between autophagy and apoptosis regulated by puerarin during osteoblastogenesis. METHODS In this study, the effects of puerarin on the autophagic activity and apoptosis level of osteoblast precursors (MC3T3-E1 cells) was observed. Subsequently, the roles of puerarin on B-cell lymphoma-2 (Bcl-2) phosphorylation at different sites in osteoblast precursors were observed. The effect of puerarin on the interaction between Bcl-2 and autophagy regulatory molecule or pro-apoptotic molecule was also investigated using Co-immunoprecipitation assays. In addition, the effect of puerarin on mitochondrial membrane potential of osteoblast precursors was also identified by mitochondrial membrane potential fluorescence probe assays. RESULTS Our results showed that puerarin can promote the autophagic activity and apoptosis level of MC3T3-E1 cells. In addition, puerarin promoted Bcl-2 phosphorylation at Ser70 site, and the dissociation of Bcl-2-Beclin1 complex. Moreover, puerarin could enhance the binding of Bcl-2-Bcl-2-Associated X (Bax) complex in MC3T3-E1 cells. Furthermore, puerarin increased the mitochondrial membrane potential of MC3T3-E1 cells. CONCLUSIONS Therefore, puerarin promotes Beclin1 into autophagy flux through Bcl-2 phosphorylation at Ser70, thereby enhancing autophagy of osteoblast precursors, which mediates its anti-apoptotic role during osteoblastogenesis. Furthermore, the dissociation of Bcl-2-Beclin1 complex is conducive to the binding of Bcl-2-Bax complex, which resists the apoptosis of osteoblast precursors viathe increased mitochondrial membrane potential.
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Affiliation(s)
- Xi LI
- 1 the Third Clinical Medical College, Fujian Medical University
- 2 Department of Orthopedics, Fuzhou Second Hospital, Fuzhou 350007, China
| | - Xiangquan LIN
- 1 the Third Clinical Medical College, Fujian Medical University
- 2 Department of Orthopedics, Fuzhou Second Hospital, Fuzhou 350007, China
| | - Dongdong CHEN
- 1 the Third Clinical Medical College, Fujian Medical University
- 2 Department of Orthopedics, Fuzhou Second Hospital, Fuzhou 350007, China
| | - Hui LIU
- 1 the Third Clinical Medical College, Fujian Medical University
- 2 Department of Orthopedics, Fuzhou Second Hospital, Fuzhou 350007, China
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Yang F, Lian Q, Zhang X, Sun F, Jia S, Zhao W. Aucubin provides protection against cerebral ischaemia-reperfusion injury by suppressing neuronal apoptosis, oxidative stress, and inflammation through the modulation of the AKT-GSK-3β-Nrf2 signal cascade. Toxicol Appl Pharmacol 2024; 483:116829. [PMID: 38246288 DOI: 10.1016/j.taap.2024.116829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 01/02/2024] [Accepted: 01/18/2024] [Indexed: 01/23/2024]
Abstract
Aucubin (AU) is a naturally occurring iridoid glycoside known to possess a wide range of pharmacological properties and exhibit a notable protective effect against various pathological conditions. Studies have shown that AU has neuroprotective properties in different neurological diseases. However, its potential protective effects against cerebral ischemia-reperfusion (CIR) injury have not been thoroughly investigated. This study aimed to investigate the impact of AU on CIR injury and explore the underlying mechanism. Cultured neurons treated with AU showed a significant reduction in apoptosis, oxidative stress, and inflammation caused by oxygen-glucose deprivation and reoxygenation (OGD/R). In a rat model of CIR, treatment with AU resulted in a significant decrease in cerebral infarct size and neurological deficits. AU treatment also reversed the increased apoptosis, oxidative stress, and inflammation in the brains of CIR rats. Furthermore, AU was found to enhance the activation of nuclear factor-erythroid 2-related factor 2 (Nrf2), accompanied by increased phosphorylation of serine/threonine-protein kinase AKT and glycogen synthase kinase-3 beta (GSK-3β). The activation of Nrf2 induced by AU was reversed when the AKT-GSK-3β cascade was blocked. Additionally, the neuroprotective effect of AU was significantly reduced when Nrf2 was pharmacologically suppressed. In conclusion, these findings suggest that AU exerts a neuroprotective effect on CIR injury, and this effect is mediated by the activation of Nrf2 through the AKT-GSK-3β axis. This work highlights the potential of AU as a drug candidate for the treatment of CIR injury.
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Affiliation(s)
- Fang Yang
- Department of Pharmacy, Xianyang Hospital of Yan'an University, Xianyang 712000, Shaanxi Province, China.
| | - Qiufang Lian
- Department of Cardiology, Xianyang Hospital of Yan'an University, Xianyang 712000, Shaanxi Province, China.
| | - Xin Zhang
- College of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, Shaanxi Province, China
| | - Feng Sun
- Department of Scientific Research, Xianyang Hospital of Yan'an University, Xianyang 712000, Shaanxi Province, China
| | - Shuaiyun Jia
- Department of Pharmacy, Xianyang Hospital of Yan'an University, Xianyang 712000, Shaanxi Province, China
| | - Wei Zhao
- Department of Cardiology, Xianyang Hospital of Yan'an University, Xianyang 712000, Shaanxi Province, China
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Yao D, Wang Y, Chen Y, Chen G. The Analgesia Effect of Aucubin on CFA-Induced Inflammatory Pain by Inhibiting Glial Cells Activation-Mediated Inflammatory Response via Activating Mitophagy. Pharmaceuticals (Basel) 2023; 16:1545. [PMID: 38004411 PMCID: PMC10674556 DOI: 10.3390/ph16111545] [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: 09/18/2023] [Revised: 10/10/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Inflammatory pain, characterized by sustained nociceptive hypersensitivity, represents one of the most prevalent conditions in both daily life and clinical settings. Aucubin, a natural plant iridoid glycoside, possesses potent biological effects, encompassing anti-inflammatory, antioxidant, and neuroprotective properties. However, its impact on inflammatory pain remains unclear. The aim of this study is to investigate the therapeutic effects and underlying mechanism of aucubin in addressing inflammatory pain induced by complete Freund's adjuvant (CFA). METHODS The CFA-induced inflammatory pain model was employed to assess whether aucubin exerts analgesic effects and its potential mechanisms. Behavioral tests evaluated mechanical and thermal hyperalgesia as well as anxiety-like behaviors in mice. The activation of spinal glial cells and the expression of pro-inflammatory cytokines were examined to evaluate neuroinflammation. Additionally, RNA sequencing was utilized for the identification of differentially expressed genes (DEGs). Molecular biology experiments were conducted to determine the levels of the PINK1 gene and autophagy-related genes, along with PINK1 distribution in neural cells. Furthermore, mitophagy induced by carbonyl cyanide m-chlorophenylhydrazone (CCCP) was employed to examine the roles of PINK1 and mitophagy in pain processing. RESULTS Aucubin significantly ameliorated pain and anxiety-like behaviors induced by CFA in mice and reduced spinal inflammation. RNA sequencing indicated PINK1 as a pivotal gene, and aucubin treatment led to a significant downregulation of PINK1 expression. Further GO and KEGG analyses suggested the involvement of mitochondrial function in the therapeutic regulation of aucubin. Western blotting revealed that aucubin markedly decreased PINK1, Parkin, and p62 levels while increasing LC3B expression. Immunofluorescence showed the predominant co-localization of PINK1 with neuronal cells. Moreover, CCCP-induced mitophagy alleviated mechanical and thermal hyperalgesia caused by CFA and reversed CFA-induced mitochondrial dysfunction. CONCLUSIONS In summary, our data suggest that aucubin effectively alleviates CFA-induced inflammatory pain, potentially through triggering the PINK1 pathway, promoting mitophagy, and suppressing inflammation. These results provide a novel theoretical foundation for addressing the treatment of inflammatory pain.
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Affiliation(s)
- Dandan Yao
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
- Department of Anesthesiology, School of Medicine, Shaoxing University, Shaoxing 312000, China
| | - Yongjie Wang
- Key Laboratory of Elemene Class Anti-Cancer Chinese Medicines, Engineering Laboratory of Development and Application of Traditional Chinese Medicines, Collaborative Innovation Center of Traditional Chinese Medicines of Zhejiang Province, Hangzhou Normal University, Hangzhou 311121, China
| | - Yeru Chen
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Gang Chen
- Department of Anesthesiology, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
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9
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Liu Z, Wang R, Liu W, Liu Y, Feng X, Zhao F, Chen P, Shao L, Rong M. Recent advances in the application and biological mechanism of silicon nitride osteogenic properties: a review. Biomater Sci 2023; 11:7003-7017. [PMID: 37718623 DOI: 10.1039/d3bm00877k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
Silicon nitride, an emerging bioceramic material, is highly sought after in the biomedical industry due to its osteogenesis-promoting properties, which are a result of its unique surface chemistry and excellent mechanical properties. Currently, it is used in clinics as an orthopedic implant material. The osteogenesis-promoting properties of silicon nitride are manifested in its contribution to the formation of a local osteogenic microenvironment, wherein silicon nitride and its hydrolysis products influence osteogenesis by modulating the biological behaviors of the constituents of the osteogenic microenvironment. In particular, silicon nitride regulates redox signaling, cellular autophagy, glycolysis, and bone mineralization in cells involved in bone formation via several mechanisms. Moreover, it may also promote osteogenesis by influencing immune regulation and angiogenesis. In addition, the wettability, surface morphology, and charge of silicon nitride play crucial roles in regulating its osteogenesis-promoting properties. However, as a bioceramic material, the molding process of silicon nitride needs to be optimized, and its osteogenic mechanism must be further investigated. Herein, we summarize the impact of the molding process of silicon nitride on its osteogenic properties and clinical applications. In addition, the mechanisms of silicon nitride in promoting osteogenesis are discussed, followed by a summary of the current gaps in silicon nitride mechanism research. This review, therefore, aims to provide novel ideas for the future development and applications of silicon nitride.
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Affiliation(s)
- Ziyi Liu
- Stomatological Hospital, Southern Medical University, Jiangnan Avenue 366, Guangzhou 510280, China.
| | - Ruijie Wang
- Stomatological Hospital, Southern Medical University, Jiangnan Avenue 366, Guangzhou 510280, China.
| | - Wenjing Liu
- Stomatological Hospital, Southern Medical University, Jiangnan Avenue 366, Guangzhou 510280, China.
| | - Yushan Liu
- Stomatological Hospital, Southern Medical University, Jiangnan Avenue 366, Guangzhou 510280, China.
| | - Xiaoli Feng
- Stomatological Hospital, Southern Medical University, Jiangnan Avenue 366, Guangzhou 510280, China.
| | - Fujian Zhao
- Stomatological Hospital, Southern Medical University, Jiangnan Avenue 366, Guangzhou 510280, China.
| | - Pei Chen
- Stomatological Hospital, Southern Medical University, Jiangnan Avenue 366, Guangzhou 510280, China.
| | - Longquan Shao
- Stomatological Hospital, Southern Medical University, Jiangnan Avenue 366, Guangzhou 510280, China.
| | - Mingdeng Rong
- Stomatological Hospital, Southern Medical University, Jiangnan Avenue 366, Guangzhou 510280, China.
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10
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Ma C, Yu R, Li J, Chao J, Liu P. Targeting proteostasis network in osteoporosis: Pathological mechanisms and therapeutic implications. Ageing Res Rev 2023; 90:102024. [PMID: 37532006 DOI: 10.1016/j.arr.2023.102024] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/11/2023] [Accepted: 07/28/2023] [Indexed: 08/04/2023]
Abstract
As the most common bone disease, osteoporosis (OP) increases bone fragility and makes patients more vulnerable to the threat of osteoporotic fractures. With the ageing population in today's society, OP has become a huge and growing public health problem. Unfortunately, the clear pathogenesis of OP is still under exploration, and effective interventions are still scarce. Therefore, exploring new targets for pharmacological interventions to develop promising therapeutic drugs for OP is of great clinical value. Previous studies have shown that normal bone remodeling depends on proteostasis, whereas loss of proteostasis during ageing leads to the dysfunctional proteostasis network (PN) that fails to maintain bone homeostasis. Nevertheless, only a few studies have revealed the pathophysiological relationship between bone metabolism and a single component of PN, yet the role of PN as a whole in the pathogenesis of OP is still under investigation. This review comprehensively summarized the role of PN in the pathogenesis of OP and further discussed the potential of PN as innovative drug targets for the therapy of OP.
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Affiliation(s)
- Cong Ma
- Department of Orthopedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430077, China; Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ronghui Yu
- Department of Orthopedics, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Junhong Li
- Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jiashuo Chao
- Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Ping Liu
- Department of Orthopedics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430077, China.
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He W, Fu Y, Yao S, Huang L. Programmed cell death of periodontal ligament cells. J Cell Physiol 2023; 238:1768-1787. [PMID: 37566596 DOI: 10.1002/jcp.31091] [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: 05/22/2023] [Revised: 06/30/2023] [Accepted: 07/11/2023] [Indexed: 08/13/2023]
Abstract
The periodontal ligament is a crucial tissue that provides support to the periodontium. Situated between the alveolar bone and the tooth root, it consists primarily of fibroblasts, cementoblasts, osteoblasts, osteoclasts, periodontal ligament stem cells (PDLSCs), and epithelial cell rests of Malassez. Fibroblasts, cementoblasts, osteoblasts, and osteoclasts are functionally differentiated cells, whereas PDLSCs are undifferentiated mesenchymal stem cells. The dynamic development of these cells is intricately linked to periodontal changes and homeostasis. Notably, the regulation of programmed cell death facilitates the clearance of necrotic tissue and plays a pivotal role in immune response. However, it also potentially contributes to the loss of periodontal supporting tissues and root resorption. These findings have significant implications for understanding the occurrence and progression of periodontitis, as well as the mechanisms underlying orthodontic root resorption. Further, the regulation of periodontal ligament cell (PDLC) death is influenced by both systemic and local factors. This comprehensive review focuses on recent studies reporting the mechanisms of PDLC death and related factors.
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Affiliation(s)
- Wei He
- Department of Orthodontics, College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Yu Fu
- Department of Orthodontics, College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Song Yao
- Department of Orthodontics, College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
| | - Lan Huang
- Department of Orthodontics, College of Stomatology, Chongqing Medical University, Chongqing, China
- Chongqing Key Laboratory for Oral Diseases and Biomedical Sciences, Chongqing, China
- Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing, China
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12
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Li H, Zhang Y, Hao Y, Xu P, Wang X, Zhu B, Lu C, Xu K. Proanthocyanidins Inhibit Osteoblast Apoptosis via the PI3K/AKT/Bcl-xL Pathway in the Treatment of Steroid-Induced Osteonecrosis of the Femoral Head in Rats. Nutrients 2023; 15:nu15081936. [PMID: 37111155 PMCID: PMC10140830 DOI: 10.3390/nu15081936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
BACKGROUND Steroid-induced osteonecrosis of the femoral head (SONFH) is a common clinical disease caused by massive or prolonged use of steroids. Its pathogenesis is unclear, but its incidence is increasing annually. It is characterized by an insidious and rapid onset, and high disability rate, causing a great burden on patients' daily life. Therefore, clarifying its pathogenesis and providing early and effective treatment for steroid osteonecrosis is important. METHODS In vivo, we used methylprednisolone (MPS) to construct a SONFH rat model and employed Mirco-ct, Hematoxylin and eosin (H&E) staining, and TdT-mediated dUTP nick end labeling (TUNEL) staining analysis to evaluate the therapeutic effects of proanthocyanidins (PACs). Network pharmacology analysis was conducted to mine targets associated with femoral head necrosis, and PACs analyzed possible molecular mechanisms. In vitro, PACs were added at different doses after treatment of cells with dexamethasone (DEX), and human osteoblast-like sarcoma(MG-63) cell apoptosis was determined by Annexin V-FITC-PI. The mechanisms by which PACs regulate bone metabolism via the Phosphoinositide 3-kinase(PI3K)/protein kinase B(AKT)/Recombinant Human B-Cell Leukemia/Lymphoma 2 XL(Bcl-xL) axis were explored by Western blotting. RESULT In vivo studies showed that PACs prevented SONFH in rat model. The PI3K/AKT/Bcl-xL signaling pathway was selected by network pharmacology approach; in vitro studies showed that proanthocyanidin-activated AKT and Bcl-xL inhibited osteoblast apoptosis. CONCLUSIONS PACs can inhibit excessive osteoblast apoptosis in SONFH via the PI3K/AKT/Bcl-xL signaling axis and have potential therapeutic effects.
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Affiliation(s)
- Hui Li
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an 710054, China
- Department of Traditional Chinese and Western Medicine, First Clinical School of Shaanxi University of Traditional Chinese Medicine, Xianyang 712046, China
| | - Yufei Zhang
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an 710054, China
- Department of Traditional Chinese and Western Medicine, First Clinical School of Shaanxi University of Traditional Chinese Medicine, Xianyang 712046, China
| | - Yangquan Hao
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an 710054, China
| | - Peng Xu
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an 710054, China
| | - Xingyu Wang
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Bin Zhu
- Department of Pharmacy, Beijing Tiantan Hospital, Capital Medical University, Beijing 100000, China
| | - Chao Lu
- Department of Joint Surgery, Xi'an Hong Hui Hospital, Xi'an Jiaotong University Health Science Center, Xi'an 710054, China
| | - Ke Xu
- Department of Traditional Chinese and Western Medicine, First Clinical School of Shaanxi University of Traditional Chinese Medicine, Xianyang 712046, China
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13
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Sławińska N, Zając J, Olas B. Paulownia Organs as Interesting New Sources of Bioactive Compounds. Int J Mol Sci 2023; 24:ijms24021676. [PMID: 36675191 PMCID: PMC9860774 DOI: 10.3390/ijms24021676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/09/2023] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
Paulownia spp. is a genus of trees in the Paulowniaceae family. It is native to southeastern Asia (especially China), where it has been cultivated for decorative, cultural, and medicinal purposes for over 2000 years. Depending on taxonomic classification, there are 6 to 17 species of Paulownia; P. tomentosa, P. elongata, P. fortunei, and P. catalpifolia are considered the most popular. Nowadays, Paulownia trees are planted in Asia, Europe, North America, and Australia for commercial, medical, and decorative purposes. Lately, growing interest in Paulownia has led to the development of various hybrids, the best-known being Clone in vitro 112, Shan Tong, Sundsu 11, and Cotevisa 2. Paulownia Clone in vitro 112 is an artificially created hybrid of two species of Paulownia: P. elongata and P. fortunei. The present review of selected papers from electronic databases including PubMed, ScienceDirect, and SCOPUS before 15 November 2022 describes the phytochemical characteristics, biological properties, and economic significance of various organs from different Paulownia species and hybrids, including P. tomentosa, P. elongata, P. fortunei, and Paulownia Clone in vitro 112. Many compounds from Paulownia demonstrate various biological activities and are promising candidates for natural preparations; for example, the leaves of Clone in vitro 112 have anti-radical and anticoagulant potential. However, further in vivo studies are needed to clarify the exact mechanism of action of the active substances and their long-term effects.
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14
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Li Z, Li D, Chen R, Gao S, Xu Z, Li N. Cell death regulation: A new way for natural products to treat osteoporosis. Pharmacol Res 2023; 187:106635. [PMID: 36581167 DOI: 10.1016/j.phrs.2022.106635] [Citation(s) in RCA: 39] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 12/11/2022] [Accepted: 12/24/2022] [Indexed: 12/27/2022]
Abstract
Osteoporosis is a common metabolic bone disease that results from the imbalance of homeostasis within the bone. Intra-bone homeostasis is dependent on a precise dynamic balance between bone resorption by osteoclasts and bone formation by mesenchymal lineage osteoblasts, which comprises a series of complex and highly standardized steps. Programmed cell death (PCD) (e.g., apoptosis, autophagy, ferroptosis, pyroptosis, and necroptosis) is a cell death process that involves a cascade of gene expression events with tight structures. These events play a certain role in regulating bone metabolism by determining the fate of bone cells. Moreover, existing research has suggested that natural products derived from a wide variety of dietary components and medicinal plants modulate the PCDs based on different mechanisms, which show great potential for the prevention and treatment of osteoporosis, thus revealing the emergence of more acceptable complementary and alternative drugs with lower costs, fewer side effects and more long-term application. Accordingly, this review summarizes the common types of PCDs in the field of osteoporosis. Moreover, from the perspective of targeting PCDs, this review also discussed the roles of currently reported natural products in the treatment of osteoporosis and the involved mechanisms. Based on this, this review provides more insights into new molecular mechanisms of osteoporosis and provides a reference for developing more natural anti-osteoporosis drugs in the future.
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Affiliation(s)
- Zhichao Li
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Dandan Li
- College of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang 050011, China
| | - Renchang Chen
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Shang Gao
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Zhanwang Xu
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China
| | - Nianhu Li
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan 250014, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250014, China.
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15
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Yang P, Zhang Q, Shen H, Bai X, Liu P, Zhang T. Research progress on the protective effects of aucubin in neurological diseases. PHARMACEUTICAL BIOLOGY 2022; 60:1088-1094. [PMID: 35634723 PMCID: PMC9154787 DOI: 10.1080/13880209.2022.2074057] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/29/2022] [Accepted: 05/01/2022] [Indexed: 06/15/2023]
Abstract
CONTEXT Aucubin (AU), an iridoid glycoside that is one of the active constituents of Eucommia ulmoides Oliv. (EUO) (Eucommiaceae), a traditional Chinese medicine, has been extensively studied in the management of neurological diseases (NDs). However, a comprehensive review of its effects and mechanisms in this regard is currently not available. OBJECTIVE To compile the protective effects and mechanisms of AU in NDs and provide a basis for further research. METHODS We used 'aucubin' as the 'All Fields' or 'MeSH' in PubMed, Web of Science and China National Knowledge Infrastructure without any limitation to search all relevant articles as comprehensively as possible; we selected the articles on AU treatment of NDs for summary. RESULTS Studies reviewed herein reported that AU improved the symptoms or prognosis of Parkinson's disease, Alzheimer's disease, intracerebral haemorrhage, diabetic encephalopathy, epilepsy, anxiety and depression, and traumatic brain injury. The pharmacological mechanisms involved in repairing neuronal loss were postulated to include increasing γ-aminobutyric acid (GABA) content in the synapse, promoting differentiation of neural precursor cells into GABAergic neurons, providing antioxidant and anti-neuroinflammation activities, as well as enhancing autophagy and anti-apoptotic actions. DISCUSSION AND CONCLUSIONS The protective effects of AU on some NDs have been confirmed. According to the pharmacological effects, AU is also highly likely to have protective effects on other NDs, which can be realized by further in vivo and in vitro basic research, and clinical trials. In the future, AU may be used for clinical prevention or treatment of patients with neurological diseases.
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Affiliation(s)
- Ping Yang
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Clinical Pharmacy, Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Qiaoyue Zhang
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Clinical Pharmacy, Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Hengyan Shen
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Clinical Pharmacy, Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Xinyu Bai
- Department of Clinical Pharmacy, Key Laboratory of Basic Pharmacology of Guizhou Province and School of Pharmacy, Zunyi Medical University, Zunyi, China
| | - Ping Liu
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Tao Zhang
- Department of Laboratory Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
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16
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Park TJ, Park SY, Cho W, Oh H, Lee HJ, Abd El-Aty AM, Bayram C, Jeong JH, Jung TW. Developmental endothelial locus-1 attenuates palmitate-induced apoptosis in tenocytes through the AMPK/autophagy-mediated suppression of inflammation and endoplasmic reticulum stress. Bone Joint Res 2022; 11:854-861. [PMID: 36458454 PMCID: PMC9792873 DOI: 10.1302/2046-3758.1112.bjr-2022-0077.r2] [Citation(s) in RCA: 2] [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: 12/12/2022] Open
Abstract
AIMS Myokine developmental endothelial locus-1 (DEL-1) has been documented to alleviate inflammation and endoplasmic reticulum (ER) stress in various cell types. However, the effects of DEL-1 on inflammation, ER stress, and apoptosis in tenocytes remain unclear. METHODS Human primary tenocytes were cultured in palmitate (400 μM) and palmitate plus DEL-1 (0 to 2 μg/ml) conditions for 24 hours. The expression levels of ER stress markers and cleaved caspase 3, as well as phosphorylated 5' adenosine monophosphate-activated protein kinase (AMPK) and autophagy markers, were assessed by Western blotting. Autophagosome formation was measured by staining with monodansylcadaverine, and apoptosis was determined by cell viability assay and caspase 3 activity assay. RESULTS We found that treatment with DEL-1 suppressed palmitate-induced inflammation, ER stress, and apoptosis in human primary tenocytes. DEL-1 treatment augmented LC3 conversion and p62 degradation as well as AMPK phosphorylation. Moreover, small interfering RNA for AMPK or 3-methyladenine (3-MA), an autophagy inhibitor, abolished the suppressive effects of DEL-1 on inflammation, ER stress, and apoptosis in tenocytes. Similar to DEL-1, 5-aminoimidazole-4-carboxamide ribonucleotide (AICAR), an activator of AMPK, also attenuated palmitate-induced inflammation, ER stress, and apoptosis in tenocytes, which 3-MA reversed. CONCLUSION These results revealed that DEL-1 suppresses inflammation and ER stress, thereby attenuating tenocyte apoptosis through AMPK/autophagy-mediated signalling. Thus, regular exercise or administration of DEL-1 may directly contribute to improving tendinitis exacerbated by obesity and insulin resistance.Cite this article: Bone Joint Res 2022;11(12):854-861.
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Affiliation(s)
- Tae Jun Park
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, South Korea
| | - Seung Yeon Park
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, South Korea,Department of Global Innovative Drugs, Graduate School of Chung-Ang University, Seoul, South Korea
| | - Wonjun Cho
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, South Korea
| | - Heeseung Oh
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, South Korea
| | - Hyun Jung Lee
- Department of Global Innovative Drugs, Graduate School of Chung-Ang University, Seoul, South Korea,Department of Anatomy and Cell Biology, Chung-Ang University Hospital, Chung-Ang University College of Medicine, Seoul, South Korea
| | - A. M. Abd El-Aty
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt,Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, Turkey
| | - Cemil Bayram
- Department of Medical Pharmacology, Medical Faculty, Ataturk University, Erzurum, Turkey
| | - Ji Hoon Jeong
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, South Korea,Department of Global Innovative Drugs, Graduate School of Chung-Ang University, Seoul, South Korea
| | - Tae Woo Jung
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, South Korea, Tae Woo Jung. E-mail:
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17
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Li Z, Li D, Su H, Xue H, Tan G, Xu Z. Autophagy: An important target for natural products in the treatment of bone metabolic diseases. Front Pharmacol 2022; 13:999017. [DOI: 10.3389/fphar.2022.999017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 11/08/2022] [Indexed: 11/19/2022] Open
Abstract
Bone homeostasis depends on a precise dynamic balance between bone resorption and bone formation, involving a series of complex and highly regulated steps. Any imbalance in this process can cause disturbances in bone metabolism and lead to the development of many associated bone diseases. Autophagy, one of the fundamental pathways for the degradation and recycling of proteins and organelles, is a fundamental process that regulates cellular and organismal homeostasis. Importantly, basic levels of autophagy are present in all types of bone-associated cells. Due to the cyclic nature of autophagy and the ongoing bone metabolism processes, autophagy is considered a new participant in bone maintenance. Novel therapeutic targets have emerged as a result of new mechanisms, and bone metabolism can be controlled by interfering with autophagy by focusing on certain regulatory molecules in autophagy. In parallel, several studies have reported that various natural products exhibit a good potential to mediate autophagy for the treatment of metabolic bone diseases. Therefore, we briefly described the process of autophagy, emphasizing its function in different cell types involved in bone development and metabolism (including bone marrow mesenchymal stem cells, osteoblasts, osteocytes, chondrocytes, and osteoclasts), and also summarized research advances in natural product-mediated autophagy for the treatment of metabolic bone disease caused by dysfunction of these cells (including osteoporosis, rheumatoid joints, osteoarthritis, fracture nonunion/delayed union). The objective of the study was to identify the function that autophagy serves in metabolic bone disease and the effects, potential, and challenges of natural products for the treatment of these diseases by targeting autophagy.
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18
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Huang J, Ye Y, Xiao Y, Ren Q, Zhou Q, Zhong M, Jiao L, Wu L. Geniposide ameliorates glucocorticoid-induced osteoblast apoptosis by activating autophagy. Biomed Pharmacother 2022; 155:113829. [DOI: 10.1016/j.biopha.2022.113829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/02/2022] [Accepted: 10/05/2022] [Indexed: 11/27/2022] Open
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19
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Osteoblastic microRNAs in skeletal diseases: Biological functions and therapeutic implications. ENGINEERED REGENERATION 2022. [DOI: 10.1016/j.engreg.2022.06.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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20
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Wang T, Fan L, Feng S, Ding X, An X, Chen J, Wang M, Zhai X, Li Y. Network pharmacology of iridoid glycosides from Eucommia ulmoides Oliver against osteoporosis. Sci Rep 2022; 12:7430. [PMID: 35523810 PMCID: PMC9076851 DOI: 10.1038/s41598-022-10769-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 04/13/2022] [Indexed: 12/12/2022] Open
Abstract
Eucommia ulmoides Oliver is one of the commonly used traditional Chinese medicines for the treatment of osteoporosis, and iridoid glycosides are considered to be its active ingredients against osteoporosis. This study aims to clarify the chemical components and molecular mechanism of iridoid glycosides of Eucommia ulmoides Oliver in the treatment of osteoporosis by integrating network pharmacology and molecular simulations. The active iridoid glycosides and their potential targets were retrieved from text mining as well as Swiss Target Prediction, TargetNet database, and STITCH databases. At the same time, DisGeNET, GeneCards, and Therapeutic Target Database were used to search for the targets associated with osteoporosis. A protein–protein interaction network was built to analyze the interactions between targets. Then, DAVID bioinformatics resources and R 3.6.3 project were used to carry out Gene Ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genomes pathway analysis. Moreover, interactions between active compounds and potential targets were investigated through molecular docking, molecular dynamic simulation, and binding free energy analysis. The results showed that a total of 12 iridoid glycosides were identified as the active iridoid glycosides of Eucommia ulmoides Oliver in the treatment of osteoporosis. Among them, aucubin, reptoside, geniposide and ajugoside were the core compounds. The enrichment analysis suggested iridoid glycosides of Eucommia ulmoides Oliver prevented osteoporosis mainly through PI3K-Akt signaling pathway, MAPK signaling pathway and Estrogen signaling pathway. Molecular docking results indicated that the 12 iridoid glycosides had good binding ability with 25 hub target proteins, which played a critical role in the treatment of osteoporosis. Molecular dynamic and molecular mechanics Poisson–Boltzmann surface area results revealed these compounds showed stable binding to the active sites of the target proteins during the simulations. In conclusion, our research demonstrated that iridoid glycosides of Eucommia ulmoides Oliver in the treatment of osteoporosis involved a multi-component, multi-target and multi-pathway mechanism, which provided new suggestions and theoretical support for treating osteoporosis.
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Affiliation(s)
- Ting Wang
- Biomedicine Key Laboratory of Shaanxi Province, College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Liming Fan
- Biomedicine Key Laboratory of Shaanxi Province, College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Shuai Feng
- Biomedicine Key Laboratory of Shaanxi Province, College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Xinli Ding
- Biomedicine Key Laboratory of Shaanxi Province, College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Xinxin An
- Biomedicine Key Laboratory of Shaanxi Province, College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Jiahuan Chen
- Biomedicine Key Laboratory of Shaanxi Province, College of Life Sciences, Northwest University, Xi'an, 710069, China
| | - Minjuan Wang
- Physical and Chemical Laboratory, Shaanxi Provincial Center for Disease Control and Prevention, Xi'an, 710054, China
| | - Xifeng Zhai
- School of Pharmaceutical Sciences, Xi'an Medical University, Xi'an, 710021, China
| | - Yang Li
- Biomedicine Key Laboratory of Shaanxi Province, College of Life Sciences, Northwest University, Xi'an, 710069, China.
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21
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Dong C, Chen Z, Zhu L, Bsoul N, Wu H, Jiang J, Chen X, Lai Y, Yu G, Gu Y, Guo X, Gao W. Diallyl Trisulfide Enhances the Survival of Multiterritory Perforator Skin Flaps. Front Pharmacol 2022; 13:809034. [PMID: 35242032 PMCID: PMC8885991 DOI: 10.3389/fphar.2022.809034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/04/2022] [Indexed: 12/13/2022] Open
Abstract
The multiterritory perforator flap is one of the widest flap patterns used to repair tissue defects. However, flap necrosis of the distal part is still a challenging issue for plastic surgeons. Diallyl trisulfide (DATS) is an efficient ingredient extracted from garlic, exerting many important effects on different diseases. Our experiment aims to reveal whether DATS has a beneficial effect on the survival of perforator flaps and to explore its mechanism of action. The results showed that DATS enhanced angiogenesis and autophagy and reduced cell apoptosis and oxidative stress, thereby improving the survival rate of skin flaps. After co-administration with autophagy inhibitor 3-methyladenine (3MA), perforator flap survival was further improved. Mechanistically, we showed that PI3K/Akt and AMPK-HIF-1α signaling pathways in flap were activated under DATS treatment. All in all, DATS promoted the survival of multiterritory perforator flaps via the synergistic regulation of PI3K/Akt and AMPK-HIF-1α signaling pathways, and inhibition of DATS-induced autophagy further improves flap survival.
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Affiliation(s)
- Chengji Dong
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Zhuliu Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Linxin Zhu
- Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Najeeb Bsoul
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Hongqiang Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Jingtao Jiang
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Xuankuai Chen
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Yingying Lai
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Gaoxiang Yu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second Clinical Medical College of Wenzhou Medical University, Wenzhou, China
| | - Yanlan Gu
- Department of Histology and Embryology, Wenzhou Medical University, Zhejiang, China
| | - Xiaoshan Guo
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Weiyang Gao
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
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22
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Yue C, Jin H, Zhang X, Li W, Wang D, Tong P, Liu Y, Tan Z. Aucubin prevents steroid-induced osteoblast apoptosis by enhancing autophagy via AMPK activation. J Cell Mol Med 2021; 25:10175-10184. [PMID: 34612603 PMCID: PMC8572759 DOI: 10.1111/jcmm.16954] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 09/01/2021] [Accepted: 09/08/2021] [Indexed: 12/19/2022] Open
Abstract
Steroid‐induced osteoblast apoptosis is a crucial pathological process in steroid‐induced osteonecrosis of the femoral head (SONFH). Autophagy can resist apoptosis and AMPK plays an important role in autophagy regulation. Aucubin from the small tree Eucommia ulmoides Oliv., which has a long history of use in orthopaedics and traumatology in Asian medicine, can promote bone formation, but whether it can slow or prevent steroid‐osteoblast apoptosis is unclear. Therefore, we investigated the pathogenesis of SONFH and how the osteoblast responds to aucubin under the dexamethasone stimulation. In human femoral head osteonecrosis specimens, we found that the autophage and apoptosis level were increased, and the AMPK signalling was crucial to autophagy. We observed that aucubin could prevent dexamethasone‐induced apoptosis in osteoblasts by enhancing the level of autophagy. Further, we confirmed that the regulatory effect of aucubin on autophagy and apoptosis was achieved by activating AMPK signalling. We have demonstrated a mechanism of disease progression and shown that aucubin could enhance autophagy through AMPK signalling to prevent osteoblast apoptosis. These findings provide a basis for the further investigation of the potential therapeutic role of aucubin in the SONFH.
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Affiliation(s)
- Chen Yue
- Department of Orthopedic, Luoyang Orthopedic Hospital of Henan Province, Luoyang, China.,Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Hongting Jin
- Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Xue Zhang
- Department of Orthopedic, Luoyang Orthopedic Hospital of Henan Province, Luoyang, China
| | - Wuyin Li
- Department of Orthopedic, Luoyang Orthopedic Hospital of Henan Province, Luoyang, China
| | - Deli Wang
- Department of Bone and Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, China
| | - Peijian Tong
- Institute of Orthopaedics and Traumatology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Youwen Liu
- Department of Orthopedic, Luoyang Orthopedic Hospital of Henan Province, Luoyang, China
| | - Zhen Tan
- Department of Bone and Joint Surgery, Peking University Shenzhen Hospital, Shenzhen, China
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