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Scutellarin ameliorates osteoarthritis by protecting chondrocytes and subchondral bone microstructure by inactivating NF-κB/MAPK signal transduction. Biomed Pharmacother 2022; 155:113781. [DOI: 10.1016/j.biopha.2022.113781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/18/2022] Open
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Teng M, Yuan X, Wang D, Gao H, Zhang K, Wang W, Zhao B. Scutellarin Loaded on Ultradeformable Nanoliposome Scutellarin EDTMP (S-UNL-E) Promotes Osteogenesis in Osteoporotic Rats. Stem Cells Int 2022; 2022:1395299. [PMID: 36017130 PMCID: PMC9398854 DOI: 10.1155/2022/1395299] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/27/2022] [Accepted: 07/30/2022] [Indexed: 11/29/2022] Open
Abstract
Scutellarin is known as a safe, effective, and low-cost traditional Chinese medicine and has a variety of biological activities. Studies reported that the scutellarin loaded on ultradeformable nanoliposome scutellarin EDTMP (S-UNL-E) could promote osteoblast differentiation and bone formation in vitro. However, its effect on promoting osteogenesis in vivo is still unclear. In this study, pharmacology network and transcriptome sequencing were used to screen the potential targets and pathways of scutellarin in treating osteoporosis. The female Sprague-Dawley (SD) rats were operated on with bilateral oophorectomy and femoral defect to establish an osteoporosis model and then treated separately with bone dust, single scutellarin, 40 mg/kg ultradeformable nanoliposome scutellarin (S-UNL), and the optimal concentration of 40 mg/kg S-UNL-E for a total of 56 d to detect the parameters of trabecular bones. And qRT-PCR and western blot were performed to determine the expression of prostaglandin-endoperoxide synthase 2 (PTGS2), alkaline phosphatase (ALP), transcription factor 4 (TCF4), and β-catenin. Results of microscopic computed tomography (Micro-CT) of trabecular bones showed that single scutellarin, S-UNL, and S-UNL-E all promoted the bone formation of osteoporotic rats, in which S-UNL-E manifested the most remarkable therapeutic effect. And it is found that 40 mg/kg of S-UNL-E increased the expression of PTGS2, ALP, TCF4, and β-catenin, which indicated that S-UNL-E stimulated the secretion of ALP in bone defect areas to promote bone healing, and increased PTGS2 expression thereby enhancing the transcription and translation of key gene β-catenin and TCF4 in the Wnt/β-catenin signaling pathway to treat osteoporotic rats.
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Affiliation(s)
- Minhua Teng
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
- School of Stomatology, Qingdao University, Qingdao 266003, China
| | - Xiao Yuan
- School of Stomatology, Qingdao University, Qingdao 266003, China
- Department of Orthodontics, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
| | - Dashan Wang
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
- School of Stomatology, Qingdao University, Qingdao 266003, China
| | - Hui Gao
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
- School of Stomatology, Qingdao University, Qingdao 266003, China
| | - Kaiyue Zhang
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
- School of Stomatology, Qingdao University, Qingdao 266003, China
| | - Wenxue Wang
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
- School of Stomatology, Qingdao University, Qingdao 266003, China
| | - Baodong Zhao
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao 266000, China
- School of Stomatology, Qingdao University, Qingdao 266003, China
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Minhua T, Dashan W, Xinyan S, Xiao Y, Xiaojing L, Baodong Z. Preparation and characterization of scutellarin loaded on ultradeformable nano-liposomes scutellarin EDTMP (S-UNL-E) and in vitro study of its osteogenesis. Bioengineered 2022; 13:1013-1024. [PMID: 34974800 PMCID: PMC8805926 DOI: 10.1080/21655979.2021.2016095] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
The present research aimed to elucidate a convenient, safe and economic approach to induce the growth of endogenous bone tissue and bone regeneration. S-UNL-E was prepared using reverse-phase evaporation, and scutellarin encapsulation was subsequently compared. Meanwhile, the optimal preparation scheme was developed using an orthogonal method, and the particle size was determined using laser light scattering. In osteoblasts cultured in vitro, methyl thiazolyl tetrazolium (MTT), alkaline phosphatase (ALP) staining and alizarin red staining were used to detect the osteogenic effects of S-UNL-E. The results indicated that the optimal process conditions for S-UNL-E included mass ratios of phospholipid-cholesterol, phospholipid-breviscapine, phospholipid-sodium cholate, and phospholipid-stearamide were 2:1, 15:1, 7:1 and 7:1, respectively, and the mass of ethylenediamine tetramethylphosphonic acid (EDTMP) was 30 mg. The average particle size of S-UNL-E was 156.67 ± 1.76 nm, and Zeta potential was −28.77 ± 0.66 mv. S-UNL-E substantially increased the expression of ALP osteoblasts, elevated the content of osteocalcin protein and promoted the formation of mineralized nodules. Cells in the S-UNL-E group were densely distributed with integrated cell structure, and the actin filaments were clear and obvious. The findings demonstrated that S-UNL-E greatly promoted the differentiation and maturation of osteoblasts, and S-UNL-E (2.5 × 108) produced the most favorable effect in differentiation promotion. In conclusion, the present study successfully constructed an S-UNL-E material characterized by high encapsulation and high stability, which could effectively promote osteogenic differentiation and bone formation.
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Affiliation(s)
- Teng Minhua
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology, Qingdao University, Qingdao, China
| | - Wang Dashan
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology, Qingdao University, Qingdao, China
| | - Shi Xinyan
- Party and Administration Office, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yuan Xiao
- School of Stomatology, Qingdao University, Qingdao, China.,Department of Orthodontics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Li Xiaojing
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology, Qingdao University, Qingdao, China
| | - Zhao Baodong
- Department of Oral Implantology, The Affiliated Hospital of Qingdao University, Qingdao, China.,School of Stomatology, Qingdao University, Qingdao, China
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Sun X, Zhu K, Feng C, Zhu J, Chen S, Tang W, Wang Z, Xiao L, Li H, Geng D, Wang Z. Paeoniflorin Ameliorates Hyperprolactinemia-Induced Inhibition of Osteoblastogenesis by Suppressing the NF- κB Signaling Pathway. Int J Endocrinol 2022; 2022:4572033. [PMID: 35465073 PMCID: PMC9033376 DOI: 10.1155/2022/4572033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 02/16/2022] [Accepted: 03/15/2022] [Indexed: 11/17/2022] Open
Abstract
Hyperprolactinemia is a common endocrine disease in women of reproductive age. Research has shown that patients with hyperprolactinemia often have decreased bone mineral density and an increased risk of fractures. However, there is still a lack of effective treatments. Paeoniflorin, one of the primary bioactive components in peony, is widely used in traditional Chinese medicine. Research has shown that paeoniflorin promotes osteoblast differentiation. However, whether paeoniflorin plays a role in hyperprolactinemia-induced osteoblastogenesis inhibition is not yet clear. In this study, we investigated the effect of paeoniflorin on prolactin (PRL)-mediated inhibition of osteoblast function. Our results showed that prolactin significantly reduced the expression of alkaline phosphatase (ALP), Osterix, and runt-related transcription factor 2 (RUNX2) in MC3T3-E1 cells cultured in an osteoblast differentiation medium, suggesting that prolactin inhibited osteoblast function. After treatment with paeoniflorin (PF), the expression of these osteoblast markers was upregulated. In addition, our findings proved that paeoniflorin increased the absorbance values of ALP-positive cells and the areas of alizarin red S (ARS) deposition compared to those in the prolactin group, suggesting that paeoniflorin reversed the PRL-induced reduction in osteoblast differentiation. The PRL-induced activation of nuclear factor kappa B (NF-κB) was significantly reversed by paeoniflorin, indicating that paeoniflorin promoted osteoblast function by inhibiting the NF-κB signaling pathway. In summary, these results showed that paeoniflorin alleviated the inhibitory effect of prolactin on osteoblastogenesis by suppressing the NF-κB signaling pathway.
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Affiliation(s)
- Xiaohong Sun
- Center Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department of Endocrinology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Keda Zhu
- Department of Endocrinology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Chengcheng Feng
- Center Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department of Endocrinology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Jie Zhu
- Center Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Shuangshuang Chen
- Center Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department of Endocrinology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Wenkai Tang
- Center Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Zhifang Wang
- Center Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Long Xiao
- Center Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Hong Li
- Department of Endocrinology, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
| | - Dechun Geng
- Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Zhirong Wang
- Center Laboratory, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
- Department of Orthopedics, Zhangjiagang TCM Hospital Affiliated to Nanjing University of Chinese Medicine, Zhangjiagang 215600, China
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Li N, Li Z, Wang Y, Chen Y, Ge X, Lu J, Bian M, Wu J, Yu J. CTP-CM enhances osteogenic differentiation of hPDLSCs via NF-κB pathway. Oral Dis 2021; 27:577-588. [PMID: 32691476 DOI: 10.1111/odi.13567] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 04/02/2020] [Accepted: 06/30/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The conditioned medium of calcined tooth powder (CTP-CM) is a type of biomimetic mineralized material and well contributing to bone healing and bone formation in vivo. However, little is known about the effect of CTP-CM on human periodontal ligament stem cells (hPDLSCs) as well as the underlying mechanisms. METHODS ALP activity assay was conducted to select the concentration with the highest ALP level, which was used for the following experiments. Cell proliferation was measured by cell counting kit-8 assay and flow cytometry analysis. Expression levels of osteogenic markers in CTP-CM-induced hPDLSCs were evaluated with real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR), immunofluorescence staining, and Western blot. Mineralization of CTP-CM-induced hPDLSCs was evaluated by alizarin red staining. Furthermore, the involvement of NF-κB pathway was examined by immunofluorescence staining and Western blot. RESULTS 20 μg/ml was selected for the further experiments. Functional studies demonstrated that CTP-CM exerted almost no influence on the proliferation of hPDLSCs and CTP-CM increased the osteogenic differentiation of hPDLSCs. Mechanistically, CTP-CM leads to activation of NF-κB signaling pathway. When treated with BMS345541, the osteogenic differentiation of CTP-CM-treated hPDLSCs was significantly attenuated. CONCLUSION CTP-CM can promote the osteogenic differentiation of hPDLSCs via activating NF-κB pathway.
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Affiliation(s)
- Na Li
- Institute of Stomatology, Nanjing Medical University, Nanjing, China
| | - Zehan Li
- Institute of Stomatology, Nanjing Medical University, Nanjing, China
- Stem Cells & Regenerative Medicine Laboratory, Peninsula Dental School, Faculty of Medicine and Dentistry, University of Plymouth, Plymouth, UK
| | - Yanqiu Wang
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
| | - Yan Chen
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, China
| | - Xingyun Ge
- Institute of Stomatology, Nanjing Medical University, Nanjing, China
| | - Jiamin Lu
- Institute of Stomatology, Nanjing Medical University, Nanjing, China
| | - Minxia Bian
- Institute of Stomatology, Nanjing Medical University, Nanjing, China
| | - Jintao Wu
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
| | - Jinhua Yu
- Institute of Stomatology, Nanjing Medical University, Nanjing, China
- Endodontic Department, School of Stomatology, Nanjing Medical University, Nanjing, China
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The Novel Target of Colorectal Carcinoma: TRIM44 Regulates Cell Migration and Invasion via Activation of CXCR4/NF-κB Signaling. Cell Biochem Biophys 2020; 79:113-121. [PMID: 33151473 DOI: 10.1007/s12013-020-00955-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2020] [Indexed: 10/23/2022]
Abstract
Tripartite motif containing 44 (TRIM44) has been reported to regulate various biological effects in malignant cancers and matrix Metalloproteinases has been demonstrated to be associated with cancer cell migration and invasion. Nonetheless, the expression and molecular mechanism of TRIM44 in colorectal cancer (CRC) remain rarely known. TRIM44 was overexpressed or knocked down in CRC cells. Subsequently, the effects of TRIM44 on cell migration and invasion as well as underlying molecular mechanisms were detected. Data showed that TRIM44 was highly expressed in CRC cell lines. Downregulation of TRIM44 inhibited the cell viability, migration, and invasion in SW-480 cells. In addition, overexpression of TRIM44 enhanced the expression of NF-κB and CXCR4, and enhanced the binding between NF-κB and CXCR4 promoter region. In summarize, TRIM44 may serve as a potential target for CRC diagnosis and progression.
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Bailly C. Molecular and cellular basis of the anticancer activity of the prenylated flavonoid icaritin in hepatocellular carcinoma. Chem Biol Interact 2020; 325:109124. [PMID: 32437694 DOI: 10.1016/j.cbi.2020.109124] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/23/2020] [Accepted: 04/29/2020] [Indexed: 02/07/2023]
Abstract
The prenylated flavonoid icaritin (ICT) is currently undergoing phase 3 clinical trial for the treatment of advanced hepatocellular carcinoma (HCC), based on a solid array of preclinical and clinical data. The antitumor activity originates from the capacity of the drug to modulate several signaling effectors in cancer cells, mainly the estrogen receptor splice variant ERα36, the transcription factors STAT3 and NFκB, and the chemokine receptor CXCR4. Recent studies have implicated additional components, including different microRNAs, the generation of reactive oxygen species and the targeting of sphingosine kinase-1. ICT also engages the RAGE-HMGB1 signaling route and modulates the apoptosis/autophagy crosstalk to promote its anticancer activity. In addition, ICT exerts profound changes on the tumor microenvironment to favor an immune-response. Collectively, these multiple biochemical and cellular characteristics confer to ICT a robust activity profile which can be exploited to treat HCC, as well as other cancers, including glioblastoma and onco-hematological diseases such as chronic myeloid leukemia. This review provides an update of the pharmacological properties of ICT and its metabolic characteristics. It also addresses the design of derivatives, including both natural products and synthetic molecules, such as SNG1153 also in clinical trial. The prenylated flavonoid ICT deserves attention as a multifunctional natural product potentially useful to improve the treatment of advanced hepatocellular carcinoma.
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Luo Z, Hu Z, Bian Y, Su W, Li X, Li S, Wu J, Shi L, Song Y, Zheng G, Ni W, Xue J. Scutellarin Attenuates the IL-1β-Induced Inflammation in Mouse Chondrocytes and Prevents Osteoarthritic Progression. Front Pharmacol 2020; 11:107. [PMID: 32161544 PMCID: PMC7054241 DOI: 10.3389/fphar.2020.00107] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 01/28/2020] [Indexed: 12/24/2022] Open
Abstract
Osteoarthritis (OA) is a chronic degenerative disease wherein the articular cartilage exhibits inflammation and degradation. Scutellarin (SCU) is a flavonoid glycoside with a range of pharmacological activities, as shown in previous studies demonstrating its anti-inflammatory activity. How SCU impacts the progression of OA, however, has not been explored to date. Herein, we assessed the impact of SCU on murine chondrocytes in an OA model system. In in vitro assays, we measured chondrocyte expression of key OA-associated factors such as matrix metalloproteinase 13 (MMP-13), a disintegrin and metalloproteinase with thrombospondin motifs 5 (ADAMTS-5), cyclooxygenase-2 (COX-2), and inducible nitric oxide synthase (iNOS) via qRT-PCR and Western blotting, the expression of interleukin 6 (IL-6), tumor necrosis factor-α (TNF-α), and prostaglandin E2 (PGE2) were detected by qRT-PCR. Our results showed that the downregulation of MMP-13, ADAMTS-5, COX-2, and iNOS expression by SCU and the overproduction of IL-6, TNF-α, and PGE2 induced by IL-1β were all inhibited by SCU in a concentration-dependent manner. Moreover, SCU was able to reverse aggrecan and collagen II degradation and nuclear factor-κB (NF-κB) and nuclear factor erythroid-derived 2-like 2 (Nrf2) signaling pathway activation both in vivo and in vitro. We further used a destabilization of the medial meniscus (DMM) murine model of OA to explore the therapeutic benefits of SCU in vivo. Together, our findings suggest SCU to be a potentially valuable therapeutic agent useful for treating OA.
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Affiliation(s)
- Zucheng Luo
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Zhichao Hu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Yujie Bian
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Wenting Su
- Department of Dermatology, Wenzhou Hospital of Integrated Traditional Chinese and Western Medicine, Wenzhou, China
| | - Xiaoyang Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Shi Li
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Jianbin Wu
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Li Shi
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Yonghuan Song
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China
| | - Gang Zheng
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Wenfei Ni
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
| | - Jixin Xue
- Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, Wenzhou, China.,The Second School of Medicine, Wenzhou Medical University, Wenzhou, China
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Hao Q, Liu Z, Lu L, Zhang L, Zuo L. Both JNK1 and JNK2 Are Indispensable for Sensitized Extracellular Matrix Mineralization in IKKβ-Deficient Osteoblasts. Front Endocrinol (Lausanne) 2020; 11:13. [PMID: 32117051 PMCID: PMC7028708 DOI: 10.3389/fendo.2020.00013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 01/08/2020] [Indexed: 01/05/2023] Open
Abstract
Extracellular matrix mineralization is critical for osteogenesis, and its dysregulation could result in osteoporosis and vascular calcification. IKK/NF-κB activation inhibits differentiation of osteoblasts, and reduces extracellular matrix mineralization, however the underlying mechanisms are poorly understood. In this study, we used CRISPR/Cas9 system to permanently inactivate IKKβ in preosteoblast cells and confirmed that such cells displayed dramatic increase in extracellular matrix mineralization associated with JNK phosphorylation. Such observation was also found in our study using IKKβ-deficient primary murine osteoblasts. Interestingly, we found that in Ikbkb-/-Mapk8-/- or Ikbkb-/-Mapk9-/- double knockout cells, the enhanced mineralization caused by IKKβ deficiency was completely abolished, and deletion of either Mapk8 or Mapk9 was sufficient to dampen c-Jun phosphorylation. In further experiments, we discovered that absence of JNK1 or JNK2 on IKKβ-deficient background resulted in highly conserved transcriptomic alteration in response to osteogenic induction. Therefore, identification of the indispensable roles of JNK1 and JNK2 in activating c-Jun and promoting osteoblast differentiation on IKKβ-deficient background provided novel insights into restoring homeostasis in extracellular matrix mineralization.
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Affiliation(s)
- Qianyun Hao
- Department of Nephrology, Peking University People's Hospital, Beijing, China
| | - Zhuangzhuang Liu
- Laboratory of Mouse Genetics, Institute of Psychiatry and Neuroscience, Xinxiang Medical University, Xinxiang, China
| | - Liaoxun Lu
- Laboratory of Mouse Genetics, Institute of Psychiatry and Neuroscience, Xinxiang Medical University, Xinxiang, China
| | - Lichen Zhang
- Laboratory of Genetic Regulators in the Immune System, Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical University, Xinxiang, China
- Lichen Zhang
| | - Li Zuo
- Department of Nephrology, Peking University People's Hospital, Beijing, China
- *Correspondence: Li Zuo
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Liu F, Li L, Lu W, Ding Z, Huang W, Li YT, Cheng C, Shan WS, Xu J, He W, Zhanghui, Yin Z. Scutellarin ameliorates cartilage degeneration in osteoarthritis by inhibiting the Wnt/β-catenin and MAPK signaling pathways. Int Immunopharmacol 2020; 78:105954. [DOI: 10.1016/j.intimp.2019.105954] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/28/2019] [Accepted: 09/30/2019] [Indexed: 10/25/2022]
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