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Yin H, Liu N, Zhou X, Chen J, Duan L. The advance of CCN3 in fibrosis. J Cell Commun Signal 2023:10.1007/s12079-023-00778-3. [PMID: 37378812 DOI: 10.1007/s12079-023-00778-3] [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: 02/14/2023] [Accepted: 06/19/2023] [Indexed: 06/29/2023] Open
Abstract
The extracellular matrix (ECM) is comprised of various extracellular macromolecules, including collagen, enzymes, and glycoproteins, which offer structural and biochemical support to neighboring cells. After tissue injury, extracellular matrix proteins deposit in the damaged tissue to promote tissue healing. However, an imbalance between ECM production and degradation can result in excessive deposition, leading to fibrosis and subsequent organ dysfunction. Acting as a regulatory protein within the extracellular matrix, CCN3 plays a crucial role in numerous biological processes, such as cell proliferation, angiogenesis, tumorigenesis, and wound healing. Many studies have demonstrated that CCN3 can reduce the production of ECM in tissues through diverse mechanisms thereby exerting an inhibitory effect on fibrosis. Consequently, CCN3 emerges as a promising therapeutic target for ameliorating fibrosis.
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Affiliation(s)
- Hui Yin
- Department of Rheumatology and Clinical Immunology, Jiangxi Provincial People's Hospital, Nanchang, 330006, China
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
- JXHC Key Laboratory of Rheumatology and Immunology, Nanchang, China
| | - Na Liu
- Department of Rheumatology and Clinical Immunology, Jiangxi Provincial People's Hospital, Nanchang, 330006, China
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Xianming Zhou
- Department of Cardiovascular Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie Chen
- Department of Rheumatology and Clinical Immunology, Jiangxi Provincial People's Hospital, Nanchang, 330006, China
| | - Lihua Duan
- Department of Rheumatology and Clinical Immunology, Jiangxi Provincial People's Hospital, Nanchang, 330006, China.
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital of Nanchang Medical College, Nanchang, China.
- JXHC Key Laboratory of Rheumatology and Immunology, Nanchang, China.
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2
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Kubota S, Kawata K, Hattori T, Nishida T. Molecular and Genetic Interactions between CCN2 and CCN3 behind Their Yin-Yang Collaboration. Int J Mol Sci 2022; 23:ijms23115887. [PMID: 35682564 PMCID: PMC9180607 DOI: 10.3390/ijms23115887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 05/19/2022] [Accepted: 05/19/2022] [Indexed: 12/15/2022] Open
Abstract
Cellular communication network factor (CCN) 2 and 3 are the members of the CCN family that conduct the harmonized development of a variety of tissues and organs under interaction with multiple biomolecules in the microenvironment. Despite their striking structural similarities, these two members show contrastive molecular functions as well as temporospatial emergence in living tissues. Typically, CCN2 promotes cell growth, whereas CCN3 restrains it. Where CCN2 is produced, CCN3 disappears. Nevertheless, these two proteins collaborate together to execute their mission in a yin–yang fashion. The apparent functional counteractions of CCN2 and CCN3 can be ascribed to their direct molecular interaction and interference over the cofactors that are shared by the two. Recent studies have revealed the mutual negative regulation systems between CCN2 and CCN3. Moreover, the simultaneous and bidirectional regulatory system of CCN2 and CCN3 is also being clarified. It is of particular note that these regulations were found to be closely associated with glycolysis, a fundamental procedure of energy metabolism. Here, the molecular interplay and metabolic gene regulation that enable the yin–yang collaboration of CCN2 and CCN3 typically found in cartilage development/regeneration and fibrosis are described.
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3
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Kubota S, Kawaki H, Perbal B, Kawata K, Hattori T, Nishida T. Cellular communication network factor 3 in cartilage development and maintenance. J Cell Commun Signal 2021; 15:533-543. [PMID: 34125392 PMCID: PMC8642582 DOI: 10.1007/s12079-021-00629-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/27/2021] [Indexed: 12/30/2022] Open
Abstract
Cellular communication network factor (CCN) 3 is one of the classical members of the CCN family, which are characterized by common molecular structures and multiple functionalities. Although this protein was discovered as a gene product overexpressed in a truncated form in nephroblastoma, recent studies have revealed its physiological roles in the development and homeostasis of mammalian species, in addition to its pathological association with a number of diseases. Cartilage is a tissue that creates most of the bony parts and cartilaginous tissues that constitute the human skeleton, in which CCN3 is also differentially produced to exert its molecular missions therein. In this review article, after the summary of the molecular structure and function of CCN3, recent findings on the regulation of ccn3 expression and the roles of CCN3 in endochondral ossification, cartilage development, maintenance and disorders are introduced with an emphasis on the metabolic regulation and function of this matricellular multifunctional molecule.
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Affiliation(s)
- Satoshi Kubota
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8525, Japan.
| | - Harumi Kawaki
- Department of Oral Biochemistry, Asahi University School of Dentistry, Mizuho, Japan
| | | | - Kazumi Kawata
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8525, Japan
| | - Takako Hattori
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8525, Japan
| | - Takashi Nishida
- Department of Biochemistry and Molecular Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama, 700-8525, Japan
- Advanced Research Center for Oral and Craniofacial Sciences, Okayama University Dental School, Okayama, Japan
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4
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MacDonald IJ, Huang CC, Liu SC, Lin YY, Tang CH. Targeting CCN Proteins in Rheumatoid Arthritis and Osteoarthritis. Int J Mol Sci 2021; 22:ijms22094340. [PMID: 33919365 PMCID: PMC8122640 DOI: 10.3390/ijms22094340] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/15/2021] [Accepted: 04/20/2021] [Indexed: 12/19/2022] Open
Abstract
The CCN family of matricellular proteins (CYR61/CCN1, CTGF/CCN2, NOV/CCN3 and WISP1-2-3/CCN4-5-6) are essential players in the key pathophysiological processes of angiogenesis, wound healing and inflammation. These proteins are well recognized for their important roles in many cellular processes, including cell proliferation, adhesion, migration and differentiation, as well as the regulation of extracellular matrix differentiation. Substantial evidence implicates four of the proteins (CCN1, CCN2, CCN3 and CCN4) in the inflammatory pathologies of rheumatoid arthritis (RA) and osteoarthritis (OA). A smaller evidence base supports the involvement of CCN5 and CCN6 in the development of these diseases. This review focuses on evidence providing insights into the involvement of the CCN family in RA and OA, as well as the potential of the CCN proteins as therapeutic targets in these diseases.
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Affiliation(s)
- Iona J. MacDonald
- Graduate Institute of Basic Medical Science, Collage of Medicine, China Medical University, Taichung 40402, Taiwan; (I.J.M.); (Y.-Y.L.)
| | - Chien-Chung Huang
- School of Medicine, Collage of Medicine, China Medical University, Taichung 406040, Taiwan;
- Division of Immunology and Rheumatology, Department of Internal Medicine, China Medical University Hospital, Taichung 404332, Taiwan
| | - Shan-Chi Liu
- Department of Medical Education and Research, China Medical University Beigang Hospital, Yunlin 65152, Taiwan;
| | - Yen-You Lin
- Graduate Institute of Basic Medical Science, Collage of Medicine, China Medical University, Taichung 40402, Taiwan; (I.J.M.); (Y.-Y.L.)
| | - Chih-Hsin Tang
- Graduate Institute of Basic Medical Science, Collage of Medicine, China Medical University, Taichung 40402, Taiwan; (I.J.M.); (Y.-Y.L.)
- School of Medicine, Collage of Medicine, China Medical University, Taichung 406040, Taiwan;
- Graduate Institute of Biomedical Sciences, Collage of Medicine, China Medical University, Taichung 406040, Taiwan
- Chinese Medicine Research Center, China Medical University, Taichung 406040, Taiwan
- Department of Biotechnology, College of Health Science, Asia University, Taichung 413305, Taiwan
- Correspondence:
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Guo W, Zhang B, Sun C, Duan HQ, Liu WX, Mu K, Zhao L, Li HR, Dong ZY, Cui Q. Circular RNA derived from TIMP2 functions as a competitive endogenous RNA and regulates intervertebral disc degeneration by targeting miR‑185‑5p and matrix metalloproteinase 2. Int J Mol Med 2020; 46:621-632. [PMID: 32626912 PMCID: PMC7307854 DOI: 10.3892/ijmm.2020.4621] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Accepted: 05/04/2020] [Indexed: 12/27/2022] Open
Abstract
Intervertebral disc degeneration (IDD) is an important cause of lower back pain, although the underlying mechanisms remain poorly understood. The present study aimed to examine the role of a circular RNA derived from tissue inhibitor of metallopeptidases 2 (circ-TIMP2) in degenerative nucleus pulposus (NP) tissues, and to validate its function in cultured human NP cells. Overexpression of miR-185-5p in NP cells markedly inhibited the enhanced extracellular matrix (ECM) catabolism induced by tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) treatment. Bioinformatics analysis demonstrated that matrix metalloproteinase 2 (MMP2) was a potential target of miR-185-5p. MMP2 protein expression levels were increased following treatment with TNF-α and IL-1β in NP cells compared with those in untreated cells, and this effect was attenuated by transfection with miR-185-5p. Compared with normal NP tissues, IDD samples exhibited higher circ-TIMP2 expression levels. In addition, overexpres-sion of circ-TIMP2 promoted ECM catabolism and suppressed ECM anabolism. Furthermore, circ-TIMP2 sequestered miR-185-5p, which may potentially upregulate the target genes associated with ECM degradation. In conclusion, the results of the present study revealed that circ-TIMP2 promoted TNF-α- and IL-1β-induced NP cell imbalance between ECM anabolism and catabolism via miR-185-5p-MMP2 signaling. These findings provide a potential therapeutic option for the treatment of IDD.
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Affiliation(s)
- Wei Guo
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
| | - Bin Zhang
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Chao Sun
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Hui-Quan Duan
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Wei-Xiao Liu
- Department of Orthopaedics, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Kun Mu
- Department of Breast Surgery, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
| | - Ling Zhao
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
| | - Hao-Ran Li
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
| | - Zhan-Yin Dong
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
| | - Qing Cui
- Department of Orthopaedics, Hebei Province Cangzhou Hospital of Integrated Traditional and Western Medicine (Cangzhou No. 2 Hospital), Cangzhou, Hebei 061001, P.R. China
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The circular RNA FAM169A functions as a competitive endogenous RNA and regulates intervertebral disc degeneration by targeting miR-583 and BTRC. Cell Death Dis 2020; 11:315. [PMID: 32366862 PMCID: PMC7198574 DOI: 10.1038/s41419-020-2543-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 12/17/2022]
Abstract
Intervertebral disc degeneration (IDD) is an important factor leading to low back pain, although the underlying mechanisms remain poorly understood. In this study we examined the role of circular RNA FAM169A (circ-FAM169A) in degenerative nucleus pulposus (NP) tissues, and validated its function in cultured human NP cells. Overexpression of circ-FAM169A in NP cells markedly enhanced extracellular matrix (ECM) catabolism and suppressed ECM anabolism in NP cells. Furthermore, circ-FAM169A sequestered miR-583, which could potentially upregulate BTRC, an inducer of the NF-κB signaling pathway. In conclusion, the present study revealed that circ-FAM169A promotes IDD development via miR-583/BTRC signaling. These findings provide a potential therapeutic option for the treatment of IDD.
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7
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Chen S, Liu S, Ma K, Zhao L, Lin H, Shao Z. TGF-β signaling in intervertebral disc health and disease. Osteoarthritis Cartilage 2019; 27:1109-1117. [PMID: 31132405 DOI: 10.1016/j.joca.2019.05.005] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 05/02/2019] [Accepted: 05/14/2019] [Indexed: 02/02/2023]
Abstract
OBJECTIVE This paper aims to provide a comprehensive review of the changing role of transforming growth factor-β (TGF-β) signaling in intervertebral disc (IVD) health and disease. METHODS A comprehensive literature search was performed using PubMed terms 'TGF-β' and 'IVD'. RESULTS TGF-β signaling is necessary for the development and growth of IVD, and can play a protective role in the restoration of IVD tissues by stimulating matrix synthesis, inhibiting matrix catabolism, inflammatory response and cell loss. However, excessive activation of TGF-β signaling is detrimental to the IVD, and inhibition of the aberrant TGF-β signaling can delay IVD degeneration. CONCLUSIONS Activation of TGF-β signaling has a promising treatment prospect for IVD degeneration, while excessive activation of TGF-β signaling may contribute to the progression of IVD degeneration. Studies aimed at elucidating the changing role of TGF-β signaling in IVD at different pathophysiological stages and its specific molecular mechanisms are needed, and these studies will contribute to safe and effective TGF-β signaling-based treatments for IVD degeneration.
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Affiliation(s)
- S Chen
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - S Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - K Ma
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - L Zhao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - H Lin
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Z Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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8
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Iwai K, Nagasawa K, Akaike T, Oshima T, Kato T, Minamisawa S. CCN3 secreted by prostaglandin E 2 inhibits intimal cushion formation in the rat ductus arteriosus. Biochem Biophys Res Commun 2018; 503:3242-3247. [PMID: 30149912 DOI: 10.1016/j.bbrc.2018.08.138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 08/22/2018] [Indexed: 11/29/2022]
Abstract
The ductus arteriosus (DA), an essential fetal shunt between the pulmonary trunk and the descending aorta, changes its structure during development. Our previous studies have demonstrated that prostaglandin E2 (PGE2)-EP4 signaling promotes intimal cushion formation (ICF) by activating the migration of DA smooth muscle cells via the secretion of hyaluronan. We hypothesized that, in addition to hyaluronan, PGE2 may secrete other proteins that also regulate vascular remodeling in the DA. In order to detect PGE2 stimulation-secreted proteins, we found that CCN3 protein was increased in the culture supernatant in the presence of PGE2 in a dose-dependent manner by nano-flow liquid chromatography coupled with tandem mass spectrometry analysis and enzyme-linked immunosorbent assay. Quantitative RT-PCR analysis revealed that PGE2 stimulation tended to increase the expression levels of CCN3 mRNA in DA smooth muscle cells. Immunohistochemical analysis revealed that CCN3 was highly localized in the entire smooth muscle layers and the endothelium of the DA. Furthermore, exogenous CCN3 inhibited PGE2-induced ICF in the ex vivo DA tissues. These results suggest that CCN3 is a secreted protein of the DA smooth muscle cells induced by PGE2 to suppress ICF of the DA. The present study indicates that CCN3 could be a novel negative regulator of ICF in the DA to fine-tune the PGE2-mediated DA remodeling.
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Affiliation(s)
- Kenji Iwai
- Graduate School of Life Science and Medical Bioscience, Waseda University, Tokyo, Japan
| | - Kazumichi Nagasawa
- Graduate School of Science and Engineering, Bioscience and Biomedical Engineering, Waseda Univeristy, Tokyo, Japan
| | - Toru Akaike
- Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan
| | - Toshio Oshima
- Graduate School of Life Science and Medical Bioscience, Waseda University, Tokyo, Japan
| | - Takashi Kato
- Graduate School of Science and Engineering, Bioscience and Biomedical Engineering, Waseda Univeristy, Tokyo, Japan
| | - Susumu Minamisawa
- Graduate School of Life Science and Medical Bioscience, Waseda University, Tokyo, Japan; Department of Cell Physiology, The Jikei University School of Medicine, Tokyo, Japan.
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Song J, Wang HL, Song KH, Ding ZW, Wang HL, Ma XS, Lu FZ, Xia XL, Wang YW, Fei-Zou, Jiang JY. CircularRNA_104670 plays a critical role in intervertebral disc degeneration by functioning as a ceRNA. Exp Mol Med 2018; 50:1-12. [PMID: 30089772 PMCID: PMC6082839 DOI: 10.1038/s12276-018-0125-y] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 05/06/2018] [Accepted: 05/08/2018] [Indexed: 12/11/2022] Open
Abstract
This study was carried out to explore the roles of circular RNAs (circRNAs) in nucleus pulposus (NP) tissues in intervertebral disc degeneration (IDD). Differentially expressed circRNAs in IDD and normal NP tissues were identified based on the results of microarray analysis. Bioinformatics techniques were employed to predict the direct interactions of selected circRNAs, microRNAs (miR), and mRNAs. CircRNA_104670 was selected as the target circRNA due to its large multiplier expression in IDD tissues. After luciferase reporter and EGFP/RFP reporter assays, we confirmed that circRNA_104670 directly bound to miR-17-3p, while MMP-2 was the direct target of miR-17-3p. The receiver-operating characteristic (ROC) curve showed that circRNA_104670 and miR-17-3p had good diagnostic significance for IDD (AUC circRNA_104670 = 0.96; AUC miRNA-17-3p = 0.91). A significant correlation was detected between the Pfirrmann grade and expression of circRNA_104670 (r = 0.63; p = 0.00) and miR-17-3p (r = −0.62; p = 0.00). Flow-cytometric analysis and the MTT assay showed that interfering with circRNA_104670 using small interfering RNA (siRNA) inhibited NP cell apoptosis (p < 0.01), and this inhibition was reduced by interfering with miR-17-3p. Interfering with circRNA_104670 suppressed MMP-2 expression and increased extracellular matrix (ECM) formation, which were also reduced by interfering with miR-17-3p. Finally, an MRI evaluation showed that circRNA_104670 inhibition mice had a lower IDD grade compared with control mice (p < 0.01), whereas circRNA_104670 and miRNA-17-3p inhibition mice had a higher IDD grade compared with circRNA_104670 inhibition mice (p < 0.05). CircRNA_104670 is highly expressed in the NP tissues of IDD and acts as a ceRNA during NP degradation. ‘RNA sponges’ may provoke lower back pain by soaking up regulatory RNAs that normally protect the protein infrastructure surrounding cells in intervertebral discs. Many people suffer from lower back pain arising from disc degeneration (IDD). A team led by Fei-Zou and Jian-Yuan Jiang at Fudan University, Shanghai, China set out to identify molecular mechanisms that might contribute to IDD. They focused on circular RNAs, non-protein coding RNAs that have been linked to a variety of diseases. The researchers learned that IDD is associated with strongly elevated expression of a circular RNA that acts as an ‘RNA sponge’, binding to and thereby inactivating other RNA molecules. This inactivation ultimately results in the excessive production of an enzyme that can damage the protein matrix that supports cells within spinal discs, potentially setting up the conditions for IDD.
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Affiliation(s)
- Jian Song
- Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China, 200040
| | - Hong-Li Wang
- Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China, 200040
| | - Ke-Han Song
- Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China, 200040
| | - Zhi-Wen Ding
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China, 200032
| | - Hai-Lian Wang
- Department of Anesthesiology, Huashan Hospital, Fudan University, Shanghai, China, 200040
| | - Xiao-Sheng Ma
- Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China, 200040
| | - Fei-Zhou Lu
- Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China, 200040
| | - Xin-Lei Xia
- Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China, 200040
| | - Ying-Wei Wang
- Department of Anesthesiology, Huashan Hospital, Fudan University, Shanghai, China, 200040
| | - Fei-Zou
- Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China, 200040.
| | - Jian-Yuan Jiang
- Department of Orthopaedics, Huashan Hospital, Fudan University, Shanghai, China, 200040.
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Nakayama Y, Matsui S, Noda K, Yamazaki M, Iwai Y, Matsumura H, Izawa T, Tanaka E, Ganss B, Ogata Y. Amelotin gene expression is temporarily being upregulated at the initiation of apoptosis induced by TGFβ1 in mouse gingival epithelial cells. Apoptosis 2018; 21:1057-70. [PMID: 27502207 DOI: 10.1007/s10495-016-1279-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Amelotin (AMTN) is expressed and secreted by ameloblasts in the maturation stage of amelogenesis and persist with low levels in the junctional epithelium (JE) of erupted teeth. The purpose of this study is to investigate the transcriptional regulation of the AMTN gene by transforming growth factor beta1 (TGFβ1) in gingival epithelial (GE1) cells in the apoptosis phase. Apoptosis was evaluated by the fragmentation of chromosomal DNA and TUNEL staining. A real-time PCR was carried out to examine the AMTN mRNA levels induced by TGFβ1 and Smad3 overexpression. Transient transfection analyses were completed using the various lengths of mouse AMTN gene promoter constructs with or without TGFβ1. Chromatin immunoprecipitation (ChIP) assays were performed to investigate the Smad3 bindings to the AMTN gene promoter by TGFβ1. TGFβ1-induced apoptosis in GE1 cells were detected at 24 and 48 h by DNA fragmentation and TUNEL staining. AMTN mRNA levels increased at 6 h and reached maximum at 24 h in GE1 cells. Luciferase activities of the mouse AMTN gene promoter constructs were induced by TGFβ1. The results of the ChIP assays showed that there was an increase in Smad3 binding to Smad-binding element (SBE)#1 and SBE#2 after stimulation by TGFβ1. Immunohistochemical localization of AMTN was detected in the JE, and the AMTN protein levels in Smad3-deficient mice were decreased compared with wild-type mice. AMTN mRNA levels were induced at the initiation of apoptosis by TGFβ1, which mediated through the Smad3 bindings to SBEs in the mouse AMTN gene promoter.
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Affiliation(s)
- Yohei Nakayama
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Chiba, Japan. .,Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Chiba, Japan.
| | - Sari Matsui
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Keisuke Noda
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Mizuho Yamazaki
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Yasunobu Iwai
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Hiroyoshi Matsumura
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Chiba, Japan
| | - Takashi Izawa
- Department of Orthodontics and Dentofacial Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Eiji Tanaka
- Department of Orthodontics and Dentofacial Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Bernhard Ganss
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Yorimasa Ogata
- Department of Periodontology, Nihon University School of Dentistry at Matsudo, Chiba, Japan. .,Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, Chiba, Japan.
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11
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Aker L, Ghannam M, Alzuabi MA, Jumah F, Alkhdour SM, Mansour S, Samara A, Cronk K, Massengale J, Holsapple J, Adeeb N, Oskouian RJ, Tubbs RS. Molecular Biology and Interactions in Intervertebral Disc Development, Homeostasis, and Degeneration, with Emphasis on Future Therapies: A Systematic Review. ACTA ACUST UNITED AC 2017. [DOI: 10.26632/ss.3.2017.1.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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12
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Hu B, Xu C, Cao P, Tian Y, Zhang Y, Shi C, Xu J, Yuan W, Chen H. TGF-β Stimulates Expression of Chondroitin Polymerizing Factor in Nucleus Pulposus Cells Through the Smad3, RhoA/ROCK1, and MAPK Signaling Pathways. J Cell Biochem 2017; 119:566-579. [PMID: 28608941 DOI: 10.1002/jcb.26215] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 06/12/2017] [Indexed: 01/01/2023]
Abstract
The enzyme chondroitin polymerizing factor (ChPF) is primarily involved in extension of the chondroitin sulfate backbone required for the synthesis of sulfated glycosaminoglycan (sGAG). Transforming growth factor beta (TGF-β) upregulates sGAG synthesis in nucleus pulposus cells; however, the mechanisms mediating this induction are incompletely understood. Our study demonstrated that ChPF expression was negatively correlated with the grade of degenerative intervertebral disc disease. Treatment of nucleus pulposus cells with TGF-β induced ChPF expression and enhanced Smad2/3, RhoA/ROCK activation, and the JNK, p38, and ERK1/2 MAPK signaling pathways. Selective inhibitors of Smad2/3, RhoA or ROCK1/2, and knockdown of Smad3 and ROCK1 attenuated ChPF expression and sGAG synthesis induced by TGF-β. In addition, we showed that RhoA/ROCK1 signaling upregulated ChPF via activation of the JNK pathway but not the p38 and ERK1/2 signaling pathways. Moreover, inhibitors of JNK, p38 and ERK1/2 activity also blocked ChPF expression and sGAG synthesis induced by TGF-β in a Smad3-independent manner. Collectively, our data suggest that TGF-β stimulated the expression of ChPF and sGAG synthesis in nucleus pulposus cells through Smad3, RhoA/ROCK1 and the three MAPK signaling pathways. J. Cell. Biochem. 119: 566-579, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Bo Hu
- Department of Spinal Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Chen Xu
- Department of Spinal Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Peng Cao
- Department of Spinal Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Ye Tian
- Department of Spinal Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Ying Zhang
- Department of Spinal Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Changgui Shi
- Department of Spinal Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Jun Xu
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin, Hei Longjiang Province, 150086, China
| | - Wen Yuan
- Department of Spinal Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
| | - Huajiang Chen
- Department of Spinal Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China
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Ghannam M, Jumah F, Mansour S, Samara A, Alkhdour S, Alzuabi MA, Aker L, Adeeb N, Massengale J, Oskouian RJ, Tubbs RS. Surgical anatomy, radiological features, and molecular biology of the lumbar intervertebral discs. Clin Anat 2017; 30:251-266. [PMID: 27997062 DOI: 10.1002/ca.22822] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 12/04/2016] [Indexed: 01/07/2023]
Abstract
The intervertebral disc (IVD) is a joint unique in structure and functions. Lying between adjacent vertebrae, it provides both the primary support and the elasticity required for the spine to move stably. Various aspects of the IVD have long been studied by researchers seeking a better understanding of its dynamics, aging, and subsequent disorders. In this article, we review the surgical anatomy, imaging modalities, and molecular biology of the lumbar IVD. Clin. Anat. 30:251-266, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Malik Ghannam
- An-Najah National University Hospital, Nablus, Palestine
| | - Fareed Jumah
- An-Najah National University Hospital, Nablus, Palestine
| | - Shaden Mansour
- An-Najah National University Hospital, Nablus, Palestine
| | - Amjad Samara
- An-Najah National University Hospital, Nablus, Palestine
| | - Saja Alkhdour
- An-Najah National University Hospital, Nablus, Palestine
| | | | - Loai Aker
- An-Najah National University Hospital, Nablus, Palestine
| | - Nimer Adeeb
- Department of Neurosurgery, Boston Medical Center, Boston University, Massachusetts
| | - Justin Massengale
- Department of Neurosurgery, Boston Medical Center, Boston University, Massachusetts
| | | | - R Shane Tubbs
- Department of Anatomical Sciences, St. George's University, Grenada.,Seattle Science Foundation, Seattle, Washington
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Dysregulated miR-133a Mediates Loss of Type II Collagen by Directly Targeting Matrix Metalloproteinase 9 (MMP9) in Human Intervertebral Disc Degeneration. Spine (Phila Pa 1976) 2016; 41:E717-E724. [PMID: 26656045 DOI: 10.1097/brs.0000000000001375] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A microRNA (miRNA) study using Solexa sequencing. OBJECTIVE The purpose of this study was to identify intervertebral disc degeneration (IDD)-specific miRNA expression profile, and to validate its biological function. SUMMARY OF BACKGROUND DATA Accumulating evidence indicates that miRNAs play a critical role in IDD, but the role of specific miRNAs involved in this entity remains unclear. METHODS MiRNA expression profile was determined in nucleus pulposus (NP) tissues from patients with IDD and controls, employing Solexa sequencing and quantitative real-time PCR (qRT-PCR). Biological functions of differential expression miRNAs were further investigated. Luciferase reporter assays and western blotting were performed to determine miRNA targets. RESULTS We identified 31 miRNAs that were differentially expressed (22 upregulated and nine downregulated) in patients compared with controls. After qRT-PCR confirmation, miR-133a was significantly down-regulated in degenerative NP tissues. Moreover, its level was inversely correlated with grade of disc degeneration. Through gain- and loss-of-function studies, miR-133a was demonstrated to significantly promote type II collagen expression in NP cells. MMP9 was identified as a target of miR-133a. Knockdown of MMP9 induced effects on NP cells similar to those induced by miR-133a. Expression of MMP9 was inversely correlated with miR-133a expression in degenerative NP tissues. CONCLUSION These results suggest that the downregulation of miR-133a induces type II collagen loss by directly targeting MMP9. Our findings also highlight miR-133a as a novel hopeful therapeutic target for IDD. LEVEL OF EVIDENCE 3.
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Ji ML, Zhang XJ, Shi PL, Lu J, Wang SZ, Chang Q, Chen H, Wang C. Downregulation of microRNA-193a-3p is involved in invertebral disc degeneration by targeting MMP14. J Mol Med (Berl) 2016; 94:457-68. [PMID: 26620678 DOI: 10.1007/s00109-015-1371-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 11/08/2015] [Accepted: 11/17/2015] [Indexed: 01/06/2023]
Abstract
UNLABELLED Accumulating evidence suggests that microRNAs (miRNAs) play an important role in intervertebral disc degeneration (IDD), but the precise role of specific miRNAs involved in this disease remains elusive. The purpose of this study was to identify IDD-specific miRNAs, followed by functional validation of results. MiRNA expression profile was determined in nucleus pulposus (NP) tissues from patients with IDD and controls, employing Solexa sequencing and quantitative real-time PCR (qRT-PCR). Biological functions of differential expression miRNAs were further investigated in vitro and in vivo. Luciferase reporter assays and Western blotting were performed to determine miRNA targets. We identified 28 miRNAs that were differentially expressed in patients compared with controls. Following qRT-PCR confirmation, miR-193a-3p was significantly down-regulated in degenerative NP tissues. Moreover, its level was correlated with grade of disc degeneration. Through gain- and loss-of-function studies, miR-193a-3p was demonstrated to significantly promote type II collagen expression in NP cells. Knockdown of MMP14 induced effects on NP cells similar to those induced by miR-193a-3p. Bioinformatics target prediction identified MMP14 as a putative target of miR-193a-3p. Furthermore, luciferase reporter assays and Western blotting demonstrated that miR-193a-3p directly targets MMP14. MiR-193a-3p inhibited IDD in vitro and in vivo. The downregulation of miR-193a-3p induces the expression of MMP14, which promotes loss of type II collagen and thereby contributes to the development of human IDD. Our findings extend the role of miR-193a-3p in the pathogenesis of IDD and provide a potential novel therapeutic target for degenerative disc disease. KEY MESSAGES Intervertebral disc degeneration (ICC)-specific miRNA profile generated by next generation sequencing. Downregulation of miR-193a-3p promoted loss of type II collagen by directly targeting MMP14 in IDD. miR-193a-3p inhibited IDD in vitro and in vivo. miR-193a-3p may be a promising candidate for prevention of degenerative disc disease.
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Affiliation(s)
- Ming-Liang Ji
- Department of Orthopaedic Surgery, Zhongda Hospital, School of Medicine, Southeast University, Dingjiaqiao road 87, Nanjing, 210009, China
| | - Xue-Jun Zhang
- Department of Orthopaedic Surgery, Zhongda Hospital, School of Medicine, Southeast University, Dingjiaqiao road 87, Nanjing, 210009, China
| | - Pei-Liang Shi
- Key Laboratory of Model Animal for Disease Study of Ministry of Education, Model Animal Research Center, Collaborative Innovation Center of Genetics and Development, Nanjing University, Nanjing, China
| | - Jun Lu
- Department of Orthopaedic Surgery, Zhongda Hospital, School of Medicine, Southeast University, Dingjiaqiao road 87, Nanjing, 210009, China
| | - Shan-Zheng Wang
- Department of Orthopaedic Surgery, Zhongda Hospital, School of Medicine, Southeast University, Dingjiaqiao road 87, Nanjing, 210009, China
| | - Qing Chang
- Department of Orthopaedic Surgery, Zhongda Hospital, School of Medicine, Southeast University, Dingjiaqiao road 87, Nanjing, 210009, China
| | - Hui Chen
- Department of Orthopaedic Surgery, Zhongda Hospital, School of Medicine, Southeast University, Dingjiaqiao road 87, Nanjing, 210009, China
| | - Chen Wang
- Department of Orthopaedic Surgery, Zhongda Hospital, School of Medicine, Southeast University, Dingjiaqiao road 87, Nanjing, 210009, China.
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Ding L, Wu J, Li D, Wang H, Zhu B, Lu W, Xu G. Effects of CCN3 on rat cartilage endplate chondrocytes cultured under serum deprivation in vitro. Mol Med Rep 2016; 13:2017-22. [PMID: 26795879 PMCID: PMC4768995 DOI: 10.3892/mmr.2016.4803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 01/05/2016] [Indexed: 02/06/2023] Open
Abstract
The presence of apoptotic cells and loss of extracellular matrix (ECM) are common characteristics of degenerated cartilage endplates (CEPs). In addition, therapeutic efficacy is hampered by an incomplete understanding regarding the mechanisms underlying CEP homeostasis and degeneration. The CCN proteins have recently emerged as important regulators of cell-ECM interactions, and have been identified as key mediators of nucleus pulposus ECM composition and tissue homeostasis. However, whether CCN3 is associated with CEP homeostasis has yet to be elucidated. The present study aimed to investigate the effects of CCN3 on the apoptosis and ECM synthesis of CEP cells cultured under serum deprivation. Rat CEP cells were confirmed to be of the chondrocytic phenotype by toluidine blue staining. The mRNA expression levels of CCN3 were markedly increased, and a dose-dependent increase of apoptotic rate was detected under serum deprivation conditions following treatment with recombinant CCN3, whereas CCN3 did not exert a proapoptotic effect on cells cultured under normal conditions. Furthermore, CCN3-treated cells exhibited a decrease in the expression levels of aggrecan and collagen II in both groups. These results suggested that CCN3 may act as a regulator, rather than an initiator, of serum deprivation-induced cellular apoptosis, and that CCN3 has a catabolic effect on the mediation of ECM synthesis under both normal and serum deprivation conditions. Therefore, CCN3 may represent a novel therapeutic target for the prevention of CEP degeneration.
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Affiliation(s)
- Lei Ding
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Jingping Wu
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Defang Li
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Houlei Wang
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Bin Zhu
- Department of Orthopedic Surgery, Second Affiliated Hospital of Anhui University of Medicine, Hefei, Anhui 230601, P.R. China
| | - Wei Lu
- Department of Orthopedic Surgery, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
| | - Guoxiong Xu
- Center Laboratory, Jinshan Hospital, Fudan University, Shanghai 201508, P.R. China
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Jia Q, Dong Q, Qin L. CCN: core regulatory proteins in the microenvironment that affect the metastasis of hepatocellular carcinoma? Oncotarget 2016; 7:1203-14. [PMID: 26497214 PMCID: PMC4811454 DOI: 10.18632/oncotarget.6209] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 10/09/2015] [Indexed: 12/13/2022] Open
Abstract
Hepatocellular carcinoma (HCC) results from an underlying chronic liver inflammatory disease, such as chronic hepatitis B or C virus infections, and the general prognosis of patients with HCC still remains extremely dismal because of the high frequency of HCC metastases. Throughout the process of tumor metastasis, tumor cells constantly communicate with the surrounding microenvironment and improve their malignant phenotype. Therefore, there is a strong rationale for targeting the tumor microenvironment as primary treatment of HCC therapies. Recently, CCN family proteins have emerged as localized multitasking signal integrators in the inflammatory microenvironment. In this review, we summarize the current knowledge of CCN family proteins in inflammation and the tumor. We also propose that the CCN family proteins may play a central role in signaling the tumor microenvironment and regulating the metastasis of HCC.
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Affiliation(s)
- Qingan Jia
- Cancer Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- Department of General Surgery, Huashan Hospital, Fudan University; Cancer Metastasis Institute, Fudan University, Shanghai, China
| | - Qiongzhu Dong
- Cancer Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Lunxiu Qin
- Cancer Center, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
- Department of General Surgery, Huashan Hospital, Fudan University; Cancer Metastasis Institute, Fudan University, Shanghai, China
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18
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Colombier P, Clouet J, Boyer C, Ruel M, Bonin G, Lesoeur J, Moreau A, Fellah BH, Weiss P, Lescaudron L, Camus A, Guicheux J. TGF-β1 and GDF5 Act Synergistically to Drive the Differentiation of Human Adipose Stromal Cells towardNucleus Pulposus-like Cells. Stem Cells 2015; 34:653-67. [DOI: 10.1002/stem.2249] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Accepted: 10/09/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Pauline Colombier
- INSERM UMRS 791, Laboratoire d'Ingénierie Osteo Articulaire et Dentaire (LIOAD); Nantes France
- Université de Nantes, UFR Odontologie; Nantes France
| | - Johann Clouet
- INSERM UMRS 791, Laboratoire d'Ingénierie Osteo Articulaire et Dentaire (LIOAD); Nantes France
- Université de Nantes, UFR Odontologie; Nantes France
- Université de Nantes, UFR Sciences Biologiques et Pharmaceutiques; Nantes France
- CHU Nantes, Pharmacie Centrale, PHU 11; Nantes France
| | - Cécile Boyer
- INSERM UMRS 791, Laboratoire d'Ingénierie Osteo Articulaire et Dentaire (LIOAD); Nantes France
- Université de Nantes, UFR Odontologie; Nantes France
| | - Maëva Ruel
- INSERM UMRS 791, Laboratoire d'Ingénierie Osteo Articulaire et Dentaire (LIOAD); Nantes France
- Université de Nantes, UFR Odontologie; Nantes France
| | - Gaëlle Bonin
- INSERM UMRS 791, Laboratoire d'Ingénierie Osteo Articulaire et Dentaire (LIOAD); Nantes France
- Université de Nantes, UFR Odontologie; Nantes France
| | - Julie Lesoeur
- INSERM UMRS 791, Laboratoire d'Ingénierie Osteo Articulaire et Dentaire (LIOAD); Nantes France
- Université de Nantes, UFR Odontologie; Nantes France
| | - Anne Moreau
- Université de Nantes, UFR Médecine; Nantes France
- CHU Nantes, Service d'Anatomopathologie; Nantes France
| | - Borhane-Hakim Fellah
- INSERM UMRS 791, Laboratoire d'Ingénierie Osteo Articulaire et Dentaire (LIOAD); Nantes France
- Université de Nantes, UFR Odontologie; Nantes France
- CRIP, Centre de Recherche et d'Investigations Précliniques, ONIRIS; Nantes France
| | - Pierre Weiss
- INSERM UMRS 791, Laboratoire d'Ingénierie Osteo Articulaire et Dentaire (LIOAD); Nantes France
- Université de Nantes, UFR Odontologie; Nantes France
- CHU Nantes, PHU 4 OTONN; Nantes France
| | - Laurent Lescaudron
- INSERM UMRS 791, Laboratoire d'Ingénierie Osteo Articulaire et Dentaire (LIOAD); Nantes France
- Université de Nantes, UFR Odontologie; Nantes France
- Université de Nantes, UFR Sciences et Techniques; Nantes France
| | - Anne Camus
- INSERM UMRS 791, Laboratoire d'Ingénierie Osteo Articulaire et Dentaire (LIOAD); Nantes France
- Université de Nantes, UFR Odontologie; Nantes France
| | - Jérôme Guicheux
- INSERM UMRS 791, Laboratoire d'Ingénierie Osteo Articulaire et Dentaire (LIOAD); Nantes France
- Université de Nantes, UFR Odontologie; Nantes France
- CHU Nantes, PHU 4 OTONN; Nantes France
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19
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Targeting the extracellular matrix: Matricellular proteins regulate cell–extracellular matrix communication within distinct niches of the intervertebral disc. Matrix Biol 2014; 37:124-30. [DOI: 10.1016/j.matbio.2014.05.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 05/02/2014] [Accepted: 05/03/2014] [Indexed: 01/01/2023]
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20
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Thompson K, Murphy-Marshman H, Leask A. ALK5 inhibition blocks TGFβ-induced CCN1 expression in human foreskin fibroblasts. J Cell Commun Signal 2014; 8:59-63. [PMID: 24567145 DOI: 10.1007/s12079-014-0229-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Accepted: 02/05/2014] [Indexed: 11/25/2022] Open
Abstract
The potent profibrotic cytokine TGFβ induces connective tissue growth factor (CCN2/CTGF) is induced in fibroblasts in a fashion sensitive to SB-431542, a specific pharmacological inhibitor of TGFβ type I receptor (ALK5). In several cell types, TGFβ induces CCN1 but suppresses CCN3, which opposes CCN1/CCN2 activities. However, whether SB-431542 alters TGFβ-induced CCN1 or CCN3 in human foreskin fibroblasts in unclear. Here we show that TGFβ induces CCN1 but suppresses CCN3 expression in human foreskin fibroblasts in a SB-431542-sensitive fashion. These results emphasize that CCN1/CCN2 and CCN3 are reciprocally regulated and support the notion that blocking ALK5 or addition of CCN3 may be useful anti-fibrotic approaches.
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Affiliation(s)
- Katherine Thompson
- Department of Dentistry, University of Western Ontario, London, ON, Canada, N6A 5C1
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21
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Tran CM, Schoepflin ZR, Markova DZ, Kepler CK, Anderson DG, Shapiro IM, Risbud MV. CCN2 suppresses catabolic effects of interleukin-1β through α5β1 and αVβ3 integrins in nucleus pulposus cells: implications in intervertebral disc degeneration. J Biol Chem 2014; 289:7374-87. [PMID: 24464580 DOI: 10.1074/jbc.m113.526111] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The objective of the study was to examine the regulation of CCN2 by inflammatory cytokines, IL-1β, and TNF-α and to determine whether CCN2 modulates IL-1β-dependent catabolic gene expression in nucleus pulposus (NP) cells. IL-1β and TNF-α suppress CCN2 mRNA and protein expression in an NF-κB-dependent but MAPK-independent manner. The conserved κB sites located at -93/-86 and -546/-537 bp in the CCN2 promoter mediated this suppression. On the other hand, treatment of NP cells with IL-1β in combination with CCN2 suppressed the inductive effect of IL-1β on catabolic genes, including MMP-3, ADAMTS-5, syndecan 4, and prolyl hydroxylase 3. Likewise, silencing of CCN2 in human NP cells resulted in elevated basal expression of several catabolic genes and inflammatory cytokines like IL-6, IL-4, and IL-12 as measured by gene expression and cytokine protein array, respectively. Interestingly, the suppressive effect of CCN2 on IL-1β was independent of modulation of NF-κB signaling. Using disintegrins, echistatin, and VLO4, peptide inhibitors to αvβ3 and α5β1 integrins, we showed that CCN2 binding to both integrins was required for the inhibition of IL-1β-induced catabolic gene expression. It is noteworthy that analysis of human tissues showed a trend of altered expression of these integrins during degeneration. Taken together, these results suggest that CCN2 and inflammatory cytokines form a functional negative feedback loop in NP cells that may be important in the pathogenesis of disc disease.
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Affiliation(s)
- Cassie M Tran
- From the Department of Orthopaedic Surgery and Graduate Program in Cell and Developmental Biology, Thomas Jefferson University, Philadelphia, Pennsylvania 19107
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Tran CM, Shapiro IM, Risbud MV. Molecular regulation of CCN2 in the intervertebral disc: lessons learned from other connective tissues. Matrix Biol 2013; 32:298-306. [PMID: 23567513 DOI: 10.1016/j.matbio.2013.03.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Revised: 03/28/2013] [Accepted: 03/29/2013] [Indexed: 01/07/2023]
Abstract
Connective tissue growth factor (CCN2/CTGF) plays an important role in extracellular matrix synthesis, especially in skeletal tissues such as cartilage, bone, and the intervertebral disc. As a result there is a growing interest in examining the function and regulation of this important molecule in the disc. This review discusses the regulation of CCN2 by TGF-β and hypoxia, two critical determinants that characterize the disc microenvironment, and discusses known functions of CCN2 in the disc. The almost ubiquitous regulation of CCN2 by TGF-β, including that seen in the disc, emphasizes the importance of the TGF-β-CCN2 relationship, especially in terms of extracellular matrix synthesis. Likewise, the unique cross-talk between CCN2 and HIF-1 in the disc highlights the tissue and niche specific mode of regulation. Taken together the current literature supports an anabolic role for CCN2 in the disc and its involvement in the maintenance of tissue homeostasis during both health and disease. Further studies of CCN2 in this tissue may reveal valuable targets for the biological therapy of disc degeneration.
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Affiliation(s)
- Cassie M Tran
- Department of Orthopaedic Surgery and Graduate Program in Cell and Developmental Biology, Thomas Jefferson University, Philadelphia, USA
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