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Sheng X, Li C, Wang Z, Xu Y, Sun Y, Zhang W, Liu H, Wang J. Advanced applications of strontium-containing biomaterials in bone tissue engineering. Mater Today Bio 2023; 20:100636. [PMID: 37441138 PMCID: PMC10333686 DOI: 10.1016/j.mtbio.2023.100636] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/04/2023] [Accepted: 04/14/2023] [Indexed: 07/15/2023] Open
Abstract
Strontium (Sr) and strontium ranelate (SR) are commonly used therapeutic drugs for patients suffering from osteoporosis. Researches have showed that Sr can significantly improve the biological activity and physicochemical properties of materials in vitro and in vivo. Therefore, a large number of strontium containing biomaterials have been developed for repairing bone defects and promoting osseointegration. In this review, we provide a comprehensive overview of Sr-containing biomaterials along with the current state of their clinical use. For this purpose, the different types of biomaterials including calcium phosphate, bioactive glass, and polymers are discussed and provided future outlook on the fabrication of the next-generation multifunctional and smart biomaterials.
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Strontium-incorporated bioceramic scaffolds for enhanced osteoporosis bone regeneration. Bone Res 2022; 10:55. [PMID: 35999199 PMCID: PMC9399250 DOI: 10.1038/s41413-022-00224-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 03/15/2022] [Accepted: 05/29/2022] [Indexed: 11/23/2022] Open
Abstract
The restoration of bone defects caused by osteoporosis remains a challenge for surgeons. Strontium ranelate has been applied in preventative treatment approaches due to the biological functions of the trace element strontium (Sr). In this study, we aimed to fabricate bioactive scaffolds through Sr incorporation based on our previously developed modified amino-functional mesoporous bioactive glass (MBG) and to systematically investigate the bioactivity of the resulting scaffold in vitro and in vivo in an osteoporotic rat model. The results suggested that Sr-incorporated amino-functional MBG scaffolds possessed favorable biocompatibility. Moreover, with the incorporation of Sr, osteogenic and angiogenic capacities were upregulated in vitro. The in vivo results showed that the Sr-incorporated amino-functional MBG scaffolds achieved better bone regeneration and vessel formation. Furthermore, bioinformatics analysis indicated that the Sr-incorporated amino-functional MBG scaffolds could reduce reactive oxygen species levels in bone marrow mesenchymal stem cells in the osteoporotic model by activating the cAMP/PKA signaling pathway, thus playing an anti-osteoporosis role while promoting osteogenesis. This study demonstrated the feasibility of incorporating trace elements into scaffolds and provided new insights into biomaterial design for facilitating bone regeneration in the treatment of osteoporosis.
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You J, Zhang Y, Zhou Y. Strontium Functionalized in Biomaterials for Bone Tissue Engineering: A Prominent Role in Osteoimmunomodulation. Front Bioeng Biotechnol 2022; 10:928799. [PMID: 35875505 PMCID: PMC9298737 DOI: 10.3389/fbioe.2022.928799] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/13/2022] [Indexed: 12/24/2022] Open
Abstract
With the development of bone tissue engineering bio-scaffold materials by adding metallic ions to improve bone healing have been extensively explored in the past decades. Strontium a non-radioactive element, as an essential osteophilic trace element for the human body, has received widespread attention in the medical field due to its superior biological properties of inhibiting bone resorption and promoting osteogenesis. As the concept of osteoimmunology developed, the design of orthopedic biomaterials has gradually shifted from “immune-friendly” to “immunomodulatory” with the aim of promoting bone healing by modulating the immune microenvironment through implanted biomaterials. The process of bone healing can be regarded as an immune-induced procedure in which immune cells can target the effector cells such as macrophages, neutrophils, osteocytes, and osteoprogenitor cells through paracrine mechanisms, affecting pathological alveolar bone resorption and physiological bone regeneration. As a kind of crucial immune cell, macrophages play a critical role in the early period of wound repair and host defense after biomaterial implantation. Despite Sr-doped biomaterials being increasingly investigated, how extracellular Sr2+ guides the organism toward favorable osteogenesis by modulating macrophages in the bone tissue microenvironment has rarely been studied. This review focuses on recent knowledge that the trace element Sr regulates bone regeneration mechanisms through the regulation of macrophage polarization, which is significant for the future development of Sr-doped bone repair materials. We will also summarize the primary mechanism of Sr2+ in bone, including calcium-sensing receptor (CaSR) and osteogenesis-related signaling pathways.
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Affiliation(s)
- Jiaqian You
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Yidi Zhang
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
| | - Yanmin Zhou
- Department of Oral Implantology, Jilin Provincial Key Laboratory of Tooth Development and Bone Remodeling, Hospital of Stomatology, Jilin University, Changchun, China
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Li A, Gu Y, Zhang X, Yu H, Liu D, Pang Q. Betaine Regulates the Production of Reactive Oxygen Species Through Wnt10b Signaling in the Liver of Zebrafish. Front Physiol 2022; 13:877178. [PMID: 35574489 PMCID: PMC9096094 DOI: 10.3389/fphys.2022.877178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 03/17/2022] [Indexed: 11/26/2022] Open
Abstract
When fish are under oxidative stress, levels of reactive oxygen species (ROS) are chronically elevated, which play a crucial role in fish innate immunity. In the present study, the mechanism by which betaine regulates ROS production via Wnt10b/β-catenin signaling was investigated in zebrafish liver. Our results showed that betaine enrichment of diet at 0.1, 0.2 and 0.4 g/kg induced Wnt10b and β-catenin gene expression, but suppressed GSK-3β expression in zebrafish liver. In addition, the content of superoxide anion (O2·−), hydrogen peroxide (H2O2) and hydroxyl radical (·OH) was decreased by all of the experimental betaine treatments. However, betaine enrichment of diet at 0.1, 0.2 and 0.4 g/kg enhanced gene expression and activity of superoxide dismutase (SOD), glutathione peroxidase (GSH-PX) and catalase (CAT) in zebrafish liver. In addition, Wnt10b RNA was further interfered in zebrafish, and the results of Wnt10b RNAi indicated that Wnt10b plays a key role in regulating ROS production and antioxidant enzyme activity. In conclusion, betaine can inhibit ROS production in zebrafish liver through the Wnt10b/β-catenin signaling pathway.
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Affiliation(s)
- Ao Li
- Anti-Aging & Regenerative Medicine Research Institution, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Yaqi Gu
- Anti-Aging & Regenerative Medicine Research Institution, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Xiuzhen Zhang
- Anti-Aging & Regenerative Medicine Research Institution, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
| | - Hairui Yu
- College of Biological and Agricultural Engineering, Weifang Bioengineering Technology Research Center, Weifang University, Weifang, China
| | - Dongwu Liu
- Anti-Aging & Regenerative Medicine Research Institution, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
- *Correspondence: Dongwu Liu, ; Qiuxiang Pang,
| | - Qiuxiang Pang
- Anti-Aging & Regenerative Medicine Research Institution, School of Life Sciences and Medicine, Shandong University of Technology, Zibo, China
- *Correspondence: Dongwu Liu, ; Qiuxiang Pang,
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Shen X, Fang K, Ru Yie KH, Zhou Z, Shen Y, Wu S, Zhu Y, Deng Z, Ma P, Ma J, Liu J. High proportion strontium-doped micro-arc oxidation coatings enhance early osseointegration of titanium in osteoporosis by anti-oxidative stress pathway. Bioact Mater 2021; 10:405-419. [PMID: 34901556 PMCID: PMC8636681 DOI: 10.1016/j.bioactmat.2021.08.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/24/2021] [Accepted: 08/27/2021] [Indexed: 02/07/2023] Open
Abstract
The excessive accumulation of reactive oxygen species (ROS) under osteoporosis precipitates a microenvironment with high levels of oxidative stress (OS). This could significantly interfere with the bioactivity of conventional titanium implants, impeding their early osseointegration with bone. We have prepared a series of strontium (Sr)-doped titanium implants via micro-arc oxidation (MAO) to verify their efficacy and differences in osteoinduction capabilities under normal and osteoporotic (high OS levels) conditions. Apart from the chemical composition, all groups exhibited similar physicochemical properties (morphology, roughness, crystal structure, and wettability). Among the groups, the low Sr group (Sr25%) was more conducive to osteogenesis under normal conditions. In contrast, by increasing the catalase (CAT)/superoxide dismutase (SOD) activity and decreasing ROS levels, the high Sr-doped samples (Sr75% and Sr100%) were superior to Sr25% in inducing osteogenic differentiation of MC3T3-E1 cells and the M2 phenotype polarization of RAW264.7 cells, thus enhancing early osseointegration. Furthermore, the results of both in vitro cell co-culture and in vivo studies also showed that the high Sr-doped samples (especially Sr100%) had positive effects on osteoimmunomodulation under the OS microenvironment. Ultimately, the collated findings indicated that the high proportion Sr-doped MAO coatings were more favorable for osteoporosis patients in implant restorations. First study on osteogenic difference of Sr-doped implants in normal and OS conditions. Low Sr-doped MAO coating displays optimal bioactivity in normal microenvironment. High Sr coating significantly enhances osteoimmunomodulation/osteoinduction under OS. High Sr sample resists OS damage by activating CAT/SOD and scavenging excess ROS. High Sr implant restorations are more favorable for osteoporosis patients.
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Affiliation(s)
- Xinkun Shen
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Kai Fang
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Kendrick Hii Ru Yie
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Zixin Zhou
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Yiding Shen
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Shuyi Wu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Yue Zhu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Zhennan Deng
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Pingping Ma
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Jianfeng Ma
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
| | - Jinsong Liu
- School and Hospital of Stomatology, Wenzhou Medical University, Wenzhou, 325027, China
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Zhou W, Chen B, Shang J, Li R. Ferulic acid attenuates osteoporosis induced by glucocorticoid through regulating the GSK-3β/Lrp-5/ERK signalling pathways. Physiol Int 2021; 108:317-341. [PMID: 34529586 DOI: 10.1556/2060.2021.00180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 04/08/2021] [Indexed: 11/19/2022]
Abstract
Objective To evaluate in-vivo and in-vitro effects of ferulic acid (FA) on glucocorticoid-induced osteoarthritis (GIO) to establish its possible underlying mechanisms. Methods The effects of FA on cell proliferation, cell viability (MTT assay), ALP activity, and mineralization assay, and oxidative stress markers (ROS, SOD, GSH LDH and MDA levels) were investigated by MC3T3-E1 cell line. Wistar rats received standard saline (control group) or dexamethasone (GC, 2 mg-1 kg) or DEX+FA (50 and 100 mg-1 kg) orally for 8 weeks. Bone density, micro-architecture, bio-mechanics, bone turnover markers and histo-morphology were determined. The expression of OPG, RANKL, osteogenic markers, and other signalling proteins was assessed employing quantitative RT-PCR and Western blotting. Results The findings indicated the elevation of ALP mRNA expressions, osteogenic markers (Runx-2, OSX, Col-I, and OSN), and the β-Catenin, Lrp-5 and GSK-3β protein expressions. FA showed the potential to increase MC3T3-E1 cell differentiation, proliferation, and mineralization. FA increased oxidative stress markers (SOD, MDA, and GSH) while decreasing ROS levels and lactate dehydrogenase release in GIO rats. The OPG/RANKL mRNA expression ratio was increased by FA, followed by improved GSK-3β and ERK phosphorylation with enhanced mRNA expressions of Lrp-5 and β-catenin. Conclusion These findings showed that FA improved osteoblasts proliferation with oxidative stress suppression by controlling the Lrp-5/GSK-3β/ERK pathway in GIO, demonstrating the potential pathways involved in the mechanism of actions of FA in GIO therapy.
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Affiliation(s)
- Wei Zhou
- Spinal and Trauma's Ward, The Third People Hospital of Dalian, Dalian City, 116000, China
| | - Bo Chen
- Spinal and Trauma's Ward, The Third People Hospital of Dalian, Dalian City, 116000, China
| | - Jingbo Shang
- Spinal and Trauma's Ward, The Third People Hospital of Dalian, Dalian City, 116000, China
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Liu D, Gu Y, Yu H. Vitamin C regulates the production of reactive oxygen species through Wnt10b signaling in the gill of zebrafish. FISH PHYSIOLOGY AND BIOCHEMISTRY 2021; 47:1271-1282. [PMID: 34228252 DOI: 10.1007/s10695-021-00982-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Accepted: 06/24/2021] [Indexed: 06/13/2023]
Abstract
In this study, the mechanism that vitamin C (VC) regulates the production of reactive oxygen species (ROS) through Wnt10b signaling was investigated in the gill of zebrafish (Danio rerio). The results showed that 0.5 and 1.0 g/kg VC diets induced the gene expression of Wnt10b, β-catenin, SOD, CAT, and GSH-PX in gill. In addition, VC decreased the levels of H2O2, O2·- and ·OH, whereas the activities of SOD, CAT, and GSH-PX were increased by VC in the gill of zebrafish. To evaluate the role of Wnt10b in regulating oxidative stress, Wnt10b RNA was further interfered and the gene expression and activities of antioxidant enzymes were detected in gill. The result of Wnt10b RNA interference showed that Wnt10b signaling played a key role in regulating the gene expression of SOD, CAT, and GSH-PX. In all, VC may regulate the production of ROS through Wnt10b signaling in the gill of zebrafish (Danio rerio).
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Affiliation(s)
- Dongwu Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, 255049, China.
| | - Yaqi Gu
- School of Life Sciences, Shandong University of Technology, Zibo, 255049, China
| | - Hairui Yu
- College of Biological and Agricultural Engineering, Weifang Bioengineering Technology Research Center, Weifang University, Weifang, 261061, China
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Jing Z, Wang C, Wen S, Jin Y, Meng Q, Liu Q, Wu J, Sun H, Liu M. Phosphocreatine Promotes Osteoblastic Activities in H 2O 2-Induced MC3T3-E1 Cells by Regulating SIRT1/FOXO1/PGC-1α Signaling Pathway. Curr Pharm Biotechnol 2021; 22:609-621. [PMID: 33198615 DOI: 10.2174/1389201021999201116160247] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/14/2020] [Accepted: 10/16/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Osteoporosis, characterized by bone loss, usually occurs with the increased bone resorption and decreased bone formation. H2O2-induced MC3T3-E1 cells are commonly used for the study of osteoblastic activities, which play a crucial role in bone formation. OBJECTIVE This study aimed to investigate the effects of Phosphocreatine (PCr) on the osteoblastic activities in H2O2-induced MC3T3-E1 cells and elaborate on the possible molecular mechanism. METHODS The Osteoprotegerin (OPG)/Receptor Activator of NF-κB Ligand (RANKL) ratio and osteogenic markers were detected to investigate the effects of PCr on osteoblastic activities, and the osteoblastic apoptosis was detected using Hochest staining. Moreover, oxidative stress, Adenosine Triphosphate (ATP) generation and the expression of Sirtuin 1 (SIRT1), Forkhead Box O 1 (FOXO1) and Peroxisome Proliferator-Activated Receptor Γ Coactivator-1α (PGC-1α) were also examined to uncover the possible molecular mechanism in H2O2-induced MC3T3-E1 cells. RESULT The results showed that PCr promoted the osteoblastic differentiation by increasing the expression levels of osteogenic markers of Alkaline Phosphatase (ALP) and Runt-related transcription factor 2 (Runx2), as well as increased the OPG/RANKL ratio and suppressed the osteoblastic apoptosis in H2O2-induced MC3T3-E1 cells. Moreover, treatment with PCr suppressed reactive oxygen species (ROS) over-generation and promoted the ATP production as well as increased the PGC-1α, FOXO1 and SIRT1 protein expression levels in H2O2-induced MC3T3-E1 cells. CONCLUSION PCr treatment could promote osteoblastic activities via suppressing oxidative stress and increasing the ATP generation in H2O2-induced MC3T3-E1 cells. In addition, the positive effects of PCr on osteoblasts might be regulated by SIRT1/FOXO1/ PGC-1α signaling pathway.
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Affiliation(s)
- Zheng Jing
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Changyuan Wang
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Shijie Wen
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Yue Jin
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Qiang Meng
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Qi Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Jingjing Wu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Huijun Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Mozhen Liu
- Department of Orthopedics, First Affiliated Hospital, Dalian Medical University, Dalian, China
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Sun JB, Wang Z, An WJ. Protection of Icariin Against Hydrogen Peroxide-Induced MC3T3-E1 Cell Oxidative Damage. Orthop Surg 2021; 13:632-640. [PMID: 33619876 PMCID: PMC7957425 DOI: 10.1111/os.12891] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 10/30/2020] [Accepted: 11/16/2020] [Indexed: 01/04/2023] Open
Abstract
Objective The aim of the present study was to evaluate the potential protective mechanism of icariin against oxidative damage caused by hydrogen peroxide in MC3T3‐E1 cells. Methods MC3T3‐E1 cells were treated with different concentrations of icariin to explore the optimal dose of icariin. MC3T3‐E1 cells were divided into groups treated with various concentrations of hydrogen peroxide (H2O2; 0, 0.1, 0.2, 0.5, 1, and 2 mM) for 24 h to induce oxidative damage and cell viability was assessed by Cell Counting Kit‐8 (CCK‐8) assay. Then, cells were divided into five groups: control, H2O2 (0.2 mM), icariin (0.1 μM) and H2O2 (0.2 mM), + icariin (0.1 μM). Cell viability was detected by CCK‐8 assay. In addition, the content of glutathione and superoxide dismutase and the activity level of malondialdehyde in these treatment groups were determined. Alkaline phosphatase (ALP) and alizarin red S (ARS) staining were also performed to measure the early and late osteogenesis, respectively. Protein expression of β‐catenin and cyclin D1 was measured by western blot assay. Then, we used an antagonist of Wnt/β‐catenin signaling pathway (DKK‐1) and western blot analysis to further explore potential mechanism. Results After 24 h of exposure to 0.2 mM H2O2, the viability of MC3T3‐E1 cells was significantly decreased compared to that of the control cells. We first found that icariin can promote cell proliferation of MC3T3‐E1 cells in a dose‐dependent manner, with the dosage 0.1 μM showing the best pro‐proliferative effect. Furthermore, icariin could promote the protein expression of OSX and RUNX2. The results showed that icariin can reverse the inhibitory osteogenic effects of MC3T3‐E1 caused by H2O2. In addition, icariin could increase the Wnt‐signaling related proteins. The results showed that MC3T3‐E1 cells in the H2O2 (0.2 mM) + icariin (0.1 μM) + Wnt‐signaling antagonist (DKK‐1) group had weaker ALP and ARS staining compared with that observed in the control and H2O2 (0.2 mM) + icariin (0.1 μM) groups. The ALP activity and calcium content were decreased in the 0.2 mM H2O2 + 0.1 μM icariin + DKK‐1 group compared to that observed in the 0.2 mM H2O2 + 0.1 μM icariin group. Conclusion The results showed that icariin can increase the viability of MC3T3‐E1 cells, reverse the oxidative stress induced by H2O2 and protect MC3T3‐E1 cells against H2O2‐induced inhibition of osteogenic differentiation, which may occur through the Wnt/β‐catenin signaling pathway.
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Affiliation(s)
- Jian-Bin Sun
- Department of Trauma Orthopaedics, The General Hospital of Ningxia Medical University, Yinchuan, China
| | - Zheng Wang
- Department of Trauma Orthopaedics, The General Hospital of Ningxia Medical University, Yinchuan, China
| | - Wei-Jun An
- Department of Trauma Orthopaedics, The General Hospital of Ningxia Medical University, Yinchuan, China
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Nischarin downregulation attenuates cell injury induced by oxidative stress via Wnt signaling. Neuroreport 2020; 31:1199-1207. [PMID: 33075003 DOI: 10.1097/wnr.0000000000001536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Nischarin (NISCH) is a key protein functioning as a molecular scaffold and thereby hosting interactions with several protein partners. Here, we aimed to investigate whether NISCH downregulation could protect rat pheochromocytoma (PC12) cells against oxidative stress-induced injury using a model of cell injury induced by hydrogen peroxide (H2O2). Cell viability was evaluated using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Cell apoptosis rate was evaluated using flow cytometry. The expressions of apoptosis-related proteins Bax, Bcl-2, caspase-3 and NISCH were examined via Western blot analysis and immunofluorescence staining analyses. The expressions of NISCH, glycogen synthase kinase-3β (GSK-3β) and T-cell factor-1 (TCF-1) were examined using Western blot analysis. The results showed that incubation of H2O2 for 48 h significantly decreased the cell viability, increased the cell apoptosis rate and the NISCH expression in PC12 cells, whereas NISCH downregulation blocked the effects of H2O2 on cells. In addition, the expression of Bcl-2 was significantly reduced, and the expression of Bax and caspase-3 were significantly increased by H2O2 treatment. However, these effects were partially inhibited by the downregulation of NISCH. Furthermore, H2O2 significantly weakened the transduction of Wnt signaling, including the increases of GSK-3β and TCF-1 expressions and the decrease of β-catenin expression, while NISCH downregulation attenuated the effect of H2O2 on Wnt signaling. Moreover, inhibition of the Wnt pathway further decreased the cell viability and promoted the cell apoptosis induced by H2O2 in PC12 cells. Our results suggest that NISCH downregulation may protect cells against oxidative stress-induced injury through regulating the transduction of Wnt signaling.
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Liu D, Yu H, Zhang Q. Dietary vitamin E regulates the activity of antioxidant enzymes through Wnt10b signaling in the muscle of zebrafish. Food Funct 2020; 11:10665-10674. [DOI: 10.1039/d0fo02083d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Vitamin E (VE) regulates the activity of antioxidant enzymes through Wnt10b signaling in zebrafish.
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Affiliation(s)
- Dongwu Liu
- School of Agricultural Engineering and Food Science
- Shandong University of Technology
- Zibo 255049
- China
- State Key Laboratory of Food Science and Technology
| | - Hairui Yu
- College of Biological and Agricultural Engineering
- Weifang Bioengineering Technology Research Center
- Weifang University
- Weifang 261061
- China
| | - Qin Zhang
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications
- Guangxi Colleges and Universities Key Laboratory of Utilization of Microbial and Botanical Resources
- School of Marine Science and Biotechnology
- Guangxi University for Nationalities
- Nanning 530008
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12
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Zhao J, Du X, Wang M, Yang P, Zhang J. Salidroside mitigates hydrogen peroxide-induced injury by enhancement of microRNA-27a in human trabecular meshwork cells. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2019; 47:1758-1765. [PMID: 31062616 DOI: 10.1080/21691401.2019.1608222] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Salidroside (Sal) exerted widely pharmacological effects in multitudinous diseases had been certified. The actual study clarified the protective activity of Sal in H2O2-injured human trabecular meshwork (HTM) cells. HTM cells were disposed with H2O2 to construct an oxidative damage model in vitro. Then, Sal was utilized to administrate HTM cells, and cell viability, apoptosis, apoptosis-interrelated proteins and ROS production were appraised using CCK-8, flow cytometry, western blot and DCFH-DA staining. MiR-27a inhibitor and its control were transfected into HTM cells, and the influences of miR-27a inhibition in HTM cells stimulated with H2O2 and Sal were detected. PI3K/AKT and Wnt/β-catenin pathways were ultimately investigated to uncover the underlying mechanism. We found that H2O2 evoked HTM cells oxidative damage, as evidenced by repressing cell viability, inducing apoptosis, activating cleaved-caspase-3/-9 expression and increasing ROS production. Sal significantly lightened H2O2-evoked oxidative damage in HTM cells. Additionally, miR-27a was up-regulated by Sal, and miR-27a suppression significantly reversed the protective effect of Sal on H2O2-injured HTM cells. Finally, Sal activated PI3K/AKT and Wnt/β-catenin pathways through enhancement of miR-27a in H2O2-injured HTM cells. In conclusion, these discoveries suggested that Sal could protect HTM cells against H2O2-evoked oxidative damage by activating PI3K/AKT and Wnt/β-catenin pathways through enhancement of miR-27a. Highlights H2O2 evokes HTM cells oxidative damage; Sal relieves H2O2-induced oxidative damage in HTM cells; Sal enhances miR-27a expression in H2O2-injured HTM cells; Repressed miR-27a reverses the protective impacts of Sal on H2O2-injured HTM cells; Sal activates PI3K/AKT and Wnt/β-catenin pathways by increasing miR-27a.
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Affiliation(s)
- Jun Zhao
- a Department of Ophthalmology , Linyi People's Hospital , Linyi , China
| | - Xiujuan Du
- b Department of Ophthalmology, Eye Institute of Shandong University of Traditional Chinese Medicine , Affiliated Eye Hospital of Shandong University of TCM , Jinan , China
| | - Meng Wang
- a Department of Ophthalmology , Linyi People's Hospital , Linyi , China
| | | | - Juanmei Zhang
- a Department of Ophthalmology , Linyi People's Hospital , Linyi , China
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Cheng Y, Huang L, Wang Y, Huo Q, Shao Y, Bao H, Li Z, Liu Y, Li X. Strontium promotes osteogenic differentiation by activating autophagy via the the AMPK/mTOR signaling pathway in MC3T3‑E1 cells. Int J Mol Med 2019; 44:652-660. [PMID: 31173178 PMCID: PMC6605659 DOI: 10.3892/ijmm.2019.4216] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 05/24/2019] [Indexed: 12/23/2022] Open
Abstract
Strontium (Sr) is an alkaline earth metal that exerts the dual effect of improving bone formation and suppressing bone resorption, resulting in increased bone apposition rates and bone mineral density. However, the mechanisms through which Sr exerts these beneficial effects on bone have yet to be fully elucidated. The present study aimed to reveal the underlying molecular mechanisms associated with Sr‑induced osteogenic differentiation. The effects of Sr on cell proliferation and osteogenic differentiation were analyzed by MTT assay, RT‑qPCR, western blot analysis, alkaline phosphatase (ALP) and Alizarin red staining assays. The extent of autophagy was determined by monodansylcadaverine (MDC) staining and western blot analysis of two markers of cellular autophagic activity, the steatosis‑associated protein, sequestosome‑1 (SQSTM1/p62), and the two isoforms of microtubule‑associated protein 1 light chain 3 (LC3), LC‑3‑I/II. The expression levels of AMP‑activated protein kinase (AMPK) and mammalian target of rapamycin (mTOR) were also detected by western blot analysis. Sr at a concentration of 3 mM exerted the most pronounced effect on osteogenic differentiation, without any apparent cell toxicity. At the same time, cellular autophagy was active during this process. Subsequently, autophagy was blocked by 3‑methyladenine, and the enhancement of osteogenic differentiation in response to Sr was abrogated. Additionally, the phosphorylation level of AMPK was significantly increased, whereas that of mTOR was significantly decreased, in the Sr‑treated group. Taken together, the findings of the present study demonstrate that Sr stimulates AMPK‑activated autophagy to induce the osteogenic differentiation of MC3T3‑E1 cells.
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Affiliation(s)
- You Cheng
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Lunhui Huang
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Yichao Wang
- Department of Clinical Laboratory Medicine, Taizhou University Hospital, Taizhou, Zhejiang 318000, P.R. China
| | - Qianyu Huo
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Yanhong Shao
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Huijing Bao
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Zhaoyang Li
- School of Materials Science and Engineering, Tianjin University, Tianjin 300350, P.R. China
| | - Yunde Liu
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
| | - Xue Li
- School of Medical Laboratory, Tianjin Medical University, Tianjin 300070, P.R. China
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Jing Z, Wang C, Yang Q, Wei X, Jin Y, Meng Q, Liu Q, Liu Z, Ma X, Liu K, Sun H, Liu M. Luteolin attenuates glucocorticoid-induced osteoporosis by regulating ERK/Lrp-5/GSK-3β signaling pathway in vivo and in vitro. J Cell Physiol 2018; 234:4472-4490. [PMID: 30192012 DOI: 10.1002/jcp.27252] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 07/19/2018] [Indexed: 01/10/2023]
Abstract
Glucocorticoid-induced osteoporosis (GIO) is a secondary osteoporosis with extensive use of glucocorticoids (GCs). GCs can increase bone fragility and fracture via inhibiting osteoblastic proliferation and differentiation. Luteolin (LUT), a kind of plant flavonoid, has been reported to exhibit the antioxidant activity, but the effects of LUT on GIO still remain unclear. This study aimed to investigate the effects of LUT on GIO both in vivo and in vitro and elaborate the potential molecular mechanisms. LUT increased the superoxide dismutase activity, glutathione level and decreased reactive oxygen species (ROS) level and lactate dehydrogenase release in GIO. Meanwhile, LUT decreased caspase-3, caspase-9, and Bax protein expressions and increased Bcl-2 protein expression in GIO. LUT increased the ratio of osteoprotegerin (OPG)/receptor activator of nuclear factor-κB Ligand (RANKL) messenger RNA (mRNA) expression and mRNA expression levels of osteogenic markers, including runt-related transcription factor 2, osterix, collagen type I, and osteocalcin. LUT also enhanced the extracellular signal-regulated kinases (ERK) phosphorylation, glycogen synthase kinase 3β (GSK-3β) phosphorylation, mRNA expression levels of lipoprotein-receptor-related protein 5 (Lrp-5) and β-catenin. Further study revealed that Lrp-5 small interfering RNA (siRNA )and ERK-siRNA reduced the effects of LUT on GSK-3β phosphorylation, alkaline phosphatase (ALP) activity and the ratio of OPG/RANKL mRNA expression. Moreover, ERK-siRNA decreased Lrp-5 mRNA expression in vitro. These results indicated that LUT promoted proliferation by attenuating oxidative stress and promoted osteoblastic differentiation by regulating the ERK/Lrp-5/GSK-3β pathway in GIO. This study may bring to light the possible mechanisms involved in the action of LUT in GIO treatment, and benefit for further research on GIO.
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Affiliation(s)
- Zheng Jing
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Changyuan Wang
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Qining Yang
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Xuelian Wei
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Yue Jin
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Qiang Meng
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Qi Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Zhihao Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Xiaodong Ma
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Kexin Liu
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Huijun Sun
- Department of Clinical Pharmacology, College of Pharmacy, Dalian Medical University, Dalian, China
| | - Mozhen Liu
- Department of Orthopaedics, First Affiliated Hospital, Dalian Medical University, Dalian, China
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15
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Ma XY, Wen XX, Yang XJ, Zhou DP, Wu Q, Feng YF, Ding HJ, Lei W, Yu HL, Liu B, Xiang LB, Wang TS. Ophiopogonin D improves osteointegration of titanium alloy implants under diabetic conditions by inhibition of ROS overproduction via Wnt/β-catenin signaling pathway. Biochimie 2018; 152:31-42. [PMID: 29705132 DOI: 10.1016/j.biochi.2018.04.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Accepted: 04/24/2018] [Indexed: 01/24/2023]
Abstract
A high failure rate of titanium implants in diabetic patients has been indicated in clinical evidences. Excessive oxidative stress at the bone-implant interface plays an important role in the impaired osteointegration under diabetic conditions. While the underlying mechanisms remain unknown and the targeted treatments are urgently needed. Ophiopogonin D (OP-D), isolated from Chinese herbal Radix Ophiopogon japonicus, is generally reported to be a potent antioxidant agent. In the present study, we hypothesized that OP-D exerted promotive effects on osteointegration against oxidative stress, and investigated the underlying mechanisms associated with alteration of Wnt/β-catenin signaling pathway. Rabbit osteoblasts incubated on titanium alloy implant were co-cultured with normal serum (NS), diabetic serum (DS), DS + OP-D, DS + NAC (a potent ROS inhibitor) and DS + OP-D + Dkk1 (a Wnt inhibitor) for examinations of osteoblast behaviors. For in vivo study, titanium alloy implants were implanted into the femoral condyle defects on diabetic rabbits. Results demonstrated that diabetes-induced oxidative stress resulted in osteoblast dysfunctions and apoptotic injury at the bone-implant interface, concomitant with the inactivation of Wnt/β-catenin signaling. Importantly, OP-D administration attenuated oxidative stress, directly reactivating Wnt/β-catenin signaling. Osteoblast dysfunctions were thus reversed as evidenced by improved osteoblast adhesion, proliferation and differentiation, and ameliorated apoptotic injury, exerting similar effects to NAC treatment. In addition, the positive effects afforded by OP-D were confirmed by improved osteointegration and oetogenesis within the titanium alloy implants in vivo by Micro-CT and histological analyses. Furthermore, the pro-osteogenic effects of OP-D were almost completely abolished by the Wnt inhibitor Dkk1. These results demonstrated, for the first time, OP-D administration alleviated the damaged osteointegration of titanium alloy implants under diabetic conditions by means of inhibiting oxidative stress via a Wnt/β-catenin-dependent mechanism. The OP-D administration would become a reliable treatment strategy for implant failure therapy in diabetics due to the optimal anti-oxidative and pro-osteogenic properties.
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Affiliation(s)
- Xiang-Yu Ma
- Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Shenyang, Liaoning, 110016, China; Department of Orthopedics of the 463 Hospital of PLA, Shenyang, Liaoning, 110042, China.
| | - Xin-Xin Wen
- Department of Orthopedics of the 463 Hospital of PLA, Shenyang, Liaoning, 110042, China
| | - Xiao-Jiang Yang
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Da-Peng Zhou
- Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Shenyang, Liaoning, 110016, China
| | - Qiong Wu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shengyang, 110164, China
| | - Ya-Fei Feng
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Hai-Jiao Ding
- Department of Orthopedics of the 463 Hospital of PLA, Shenyang, Liaoning, 110042, China
| | - Wei Lei
- Department of Orthopedics, Xijing Hospital, Air Force Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Hai-Long Yu
- Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Shenyang, Liaoning, 110016, China
| | - Bing Liu
- Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Shenyang, Liaoning, 110016, China
| | - Liang-Bi Xiang
- Department of Orthopedics, General Hospital of Shenyang Military Area Command of Chinese PLA, Shenyang, Liaoning, 110016, China.
| | - Tian-Sheng Wang
- Department of Orthopedics of the 463 Hospital of PLA, Shenyang, Liaoning, 110042, China.
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