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Lai Z, Li M, Yang X, Xian Z. Knockdown of the UL-16 binding protein 1 promotes osteoblast differentiation of human mesenchymal stem cells by activating the SMAD2/3 pathway. BMC Musculoskelet Disord 2024; 25:213. [PMID: 38481217 PMCID: PMC10936096 DOI: 10.1186/s12891-024-07341-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Accepted: 03/06/2024] [Indexed: 03/17/2024] Open
Abstract
Osteoporosis is caused by the imbalance of osteoblasts and osteoclasts. The regulatory mechanisms of differentially expressed genes (DEGs) in pathogenesis of osteoporosis are of significant and needed to be further investigated. GSE100609 dataset downloaded from Gene Expression Omnibus (GEO) database was used to identified DEGs in osteoporosis patients. KEGG analysis was conducted to demonstrate signaling pathways related to enriched genes. Osteoporosis patients and the human mesenchymal stem cells (hMSCs) were obtained for in vivo and in vitro resaerch. Lentivirus construction and viral infection was used to knockdown genes. mRNA expression and protein expression were detected via qRT-PCR and western blot assay separately. Alkaline phosphatase (ALP) activity detection, alizarin Red S (ARS) staining, and expression of bone morphogenetic protein 2 (BMP2), osteocalcin (OCN) and Osterix were evaluated to determine osteoblast differentiation capacity. UL-16 binding protein 1 (ULBP1) gene was upregulated in osteoporosis and downregulated in differentiated hMSCs. Knockdown of ULBP1 increased ALP activity, mineralization ability evaluated by ARS staining, expression of BMP2, OCN and Osterix in differentiated hMSCs. Furthermore, rescue experiment demonstrated that suppressed ULBP1 boosted osteoblast differentiation by activating TNF-β signaling pathway. Knockdown of ULBP1 gene could promoted osteoblast differentiation by activating TNF-β signaling pathway in differentiated hMSCs. ULBP1 may be a the Achilles' heel of osteoporosis, and suppression of ULBP1 could be a promising treatment for osteoporosis.
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Affiliation(s)
- Zhen Lai
- Department of Orthopedic Surgery, Huadu District People's Hospital of Guangzhou, 48 Xinhua Road, Xinhua Street, Huadu District, Guangzhou, 510800, Guangdong, China.
| | - Mingming Li
- Shiling Town Health Center, 19 Qiling Street, Huadu District, Guangzhou, 510800, Guangdong, China
| | - Xiaodong Yang
- Department of Orthopedic Surgery, Huadu District People's Hospital of Guangzhou, 48 Xinhua Road, Xinhua Street, Huadu District, Guangzhou, 510800, Guangdong, China
| | - Zhenjie Xian
- Department of Orthopedic Surgery, Huadu District People's Hospital of Guangzhou, 48 Xinhua Road, Xinhua Street, Huadu District, Guangzhou, 510800, Guangdong, China
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Xia F, Wang Y, Xue M, Zhu L, Jia D, Shi Y, Gao Y, Li L, Li Y, Chen S, Xu G, Yuan D, Yuan C. LncRNA KCNQ1OT1: Molecular mechanisms and pathogenic roles in human diseases. Genes Dis 2022; 9:1556-1565. [PMID: 36157505 PMCID: PMC9485204 DOI: 10.1016/j.gendis.2021.07.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 06/13/2021] [Accepted: 07/28/2021] [Indexed: 11/30/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) exhibit a length more than 200 nucleotides and they are characterized by non-coding RNAs (ncRNA) not encoded into proteins. Over the past few years, the role and development of lncRNAs have aroused the rising attention of researchers. To be specific, KCNQ1OT1, the KCNQ1 opposite strand/antisense transcript 1, is clearly classified as a regulatory ncRNA. KCNQ1OT1 is capable of interacting with miRNAs, RNAs and proteins, thereby affecting gene expression and various cell functions (e.g., cell proliferation, migration, epithelial-mesenchymal transition (EMT), apoptosis, viability, autophagy and inflammation). KCNQ1OT1 is dysregulated in a wide range of human diseases (e.g., cardiovascular disease, cancer, diabetes, osteoarthritis, osteoporosis and cataract), and it is speculated to act as a therapeutic target for treating various human diseases. On the whole, this review aims to explore the biological functions, underlying mechanisms and pathogenic roles of KCNQ1OT1 in human diseases.
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Affiliation(s)
- Fangqi Xia
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Yaqi Wang
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Mengzhen Xue
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Leiqi Zhu
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Dengke Jia
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Yue Shi
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Yan Gao
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Luoying Li
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Yuanyang Li
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Silong Chen
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Guangfu Xu
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China
| | - Ding Yuan
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China.,Third-Grade Pharmacological Laboratory on Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Medical College of China Three Gorges, Yichang, Hubei 443002, PR China
| | - Chengfu Yuan
- College of Medical Science, China Three Gorges University, Yichang, Hubei 443002, PR China.,Third-Grade Pharmacological Laboratory on Chinese Medicine Approved by State Administration of Traditional Chinese Medicine, Medical College of China Three Gorges, Yichang, Hubei 443002, PR China.,Hubei Key Laboratory of Tumour Microenvironment and Immunotherapy, China Three Gorges University, Yichang, Hubei 443002, PR China
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Zhang H, Chen L, Wang Z, Sun Z, Shan Y, Li Q, Qi L, Wang H, Chen Y. Long noncoding RNA KCNQ1OT1 inhibits osteoclast differentiation by regulating the miR-128-3p/NFAT5 axis. Aging (Albany NY) 2022; 14:4486-4499. [PMID: 35587369 PMCID: PMC9186780 DOI: 10.18632/aging.204088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Accepted: 05/07/2022] [Indexed: 11/25/2022]
Abstract
Noncoding RNAs play an important role in regulating osteoclast differentiation. We investigated whether and how potassium voltage-gated channel subfamily Q member 1 overlapping transcript 1 (KCNQ1OT1), a long noncoding RNA, regulates osteoclast differentiation. We found that the expression of KCNQ1OT1 was downregulated in osteoporotic bone tissue. Then transfection of KCNQ1OT1 overexpression vectors or small interfering RNAs showed that the proliferation, migration, and osteoclast differentiation of RAW 264.7 cells were inhibited by KCNQ1OT1 upregulation, while they were promoted by KCNQ1OT1 knockdown. Interestingly, we found and confirmed that miR-128-3p was a target of KCNQ1OT1 using online databases, dual luciferase reporter assays and quantitative real-time polymerase chain reaction, and that it inhibited the expression of miR-128-3p. Moreover, we confirmed that miR-128-3p directly targeted nuclear factor of activated T cell 5 (NFAT5), a protein that combines with osteoprotegerin and thus regulates osteoclastogenesis with the presence of the receptor activator of nuclear factor κB ligand. Furthermore, we demonstrated that both the knockdown of KCNQ1OT1 and the overexpression of miR-128-3p attenuate the expression of NFAT5, while upregulating the osteoclastogenesis markers c-Fos, NFATc1, and Ctsk. The results from overexpression of KCNQ1OT1 and the inhibition of miR-128-3p were contrary to the above. Finally, we found that the inhibition of osteoclast differentiation by KCNQ1OT1 overexpression could be rescued using a miR-128-3p mimic, while the enhancement of migration and osteoclast differentiation by si-NFAT5 could be reversed with a miR-128-3p inhibitor. These results suggested that KCNQ1OT1 regulates the osteoclast differentiation via the miR-128-3p/NFAT5 axis.
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Affiliation(s)
- Hengshuo Zhang
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, PR China.,Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Lu Chen
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, PR China.,Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Ziyu Wang
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, PR China.,Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Zhenqian Sun
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, PR China.,Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Yu Shan
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, PR China.,Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Qinghui Li
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, PR China.,Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Linzeng Qi
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, PR China.,Cheeloo College of Medicine, Shandong University, Jinan, Shandong 250012, PR China
| | - Hongliang Wang
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, PR China
| | - Yunzhen Chen
- Department of Orthopedics, Qilu Hospital of Shandong University, Jinan, Shandong 250012, PR China
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Dong Q, Han Z, Tian L. Identification of Serum Exosome-Derived circRNA-miRNA-TF-mRNA Regulatory Network in Postmenopausal Osteoporosis Using Bioinformatics Analysis and Validation in Peripheral Blood-Derived Mononuclear Cells. Front Endocrinol (Lausanne) 2022; 13:899503. [PMID: 35757392 PMCID: PMC9218277 DOI: 10.3389/fendo.2022.899503] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 05/05/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Osteoporosis is one of the most common systemic metabolic bone diseases, especially in postmenopausal women. Circular RNA (circRNA) has been implicated in various human diseases. However, the potential role of circRNAs in postmenopausal osteoporosis (PMOP) remains largely unknown. The study aims to identify potential biomarkers and further understand the mechanism of PMOP by constructing a circRNA-associated ceRNA network. METHODS The PMOP-related datasets GSE161361, GSE64433, and GSE56116 were downloaded from the Gene Expression Omnibus (GEO) database and were used to obtain differentially expressed genes (DEGs). Gene ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis were applied to determine possible relevant functions of differentially expressed messenger RNAs (mRNAs). The TRRUST database was used to predict differential transcription factor (TF)-mRNA regulatory pairs. Afterwards, combined CircBank and miRTarBase, circRNA-miRNA as well as miRNA-TF pairs were constructed. Then, a circRNA-miRNA-TF-mRNA network was established. Next, the correlation of mRNAs, TFs, and PMOP was verified by the Comparative Toxicogenomics Database. And expression levels of key genes, including circRNAs, miRNAs, TFs, and mRNAs in the ceRNA network were further validated by quantitative real-time PCR (qRT-PCR). Furthermore, to screen out signaling pathways related to key mRNAs of the ceRNA network, Gene Set Enrichment Analysis (GSEA) was performed. RESULTS A total of 1201 DE mRNAs, 44 DE miRNAs, and 1613 DE circRNAs associated with PMOP were obtained. GO function annotation showed DE mRNAs were mainly related to inflammatory responses. KEGG analysis revealed DE mRNAs were mainly enriched in osteoclast differentiation, rheumatoid arthritis, hematopoietic cell lineage, and cytokine-cytokine receptor interaction pathways. We first identified 26 TFs and their target mRNAs. Combining DE miRNAs, miRNA-TF/mRNA pairs were obtained. Combining DE circRNAs, we constructed the ceRNA network contained 6 circRNAs, 4 miRNAs, 4 TFs, and 12 mRNAs. The expression levels of most genes detected by qRT-PCR were generally consistent with the microarray results. Combined with the qRT-PCR validation results, we eventually identified the ceRNA network that contained 4 circRNAs, 3 miRNAs, 3 TFs, and 9 mRNAs. The GSEA revealed that 9 mRNAs participate in many important signaling pathways, such as "olfactory transduction", "T cell receptor signaling pathway", and "neuroactive ligand-receptor interaction". These pathways have been reported to the occurrence and development of PMOP. To sum up, key mRNAs in the ceRNA network may participate in the development of osteoporosis by regulating related signal pathways. CONCLUSIONS A circRNA-associated ceRNA network containing TFs was established for PMOP. The study may help further explore the molecular mechanisms and may serve as potential biomarkers or therapeutic targets for PMOP.
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Affiliation(s)
- Qianqian Dong
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
- Department of Endocrinology, Gansu Provincial Hospital, Lanzhou, China
- Clinical Research Center for Metabolic Disease, Gansu Provincial Hospital, Lanzhou, China
| | - Ziqi Han
- Department of Endocrinology, Gansu Provincial Hospital, Lanzhou, China
- Clinical Research Center for Metabolic Disease, Gansu Provincial Hospital, Lanzhou, China
| | - Limin Tian
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, China
- Department of Endocrinology, Gansu Provincial Hospital, Lanzhou, China
- Clinical Research Center for Metabolic Disease, Gansu Provincial Hospital, Lanzhou, China
- *Correspondence: Limin Tian,
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Toor SM, Wani S, Albagha OME. Comprehensive Transcriptomic Profiling of Murine Osteoclast Differentiation Reveals Novel Differentially Expressed Genes and LncRNAs. Front Genet 2021; 12:781272. [PMID: 34868271 PMCID: PMC8634834 DOI: 10.3389/fgene.2021.781272] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 10/22/2021] [Indexed: 01/11/2023] Open
Abstract
Osteoclasts are the sole bone resorbing cells, which undertake opposing roles to osteoblasts to affect skeletal mass and structure. However, unraveling the comprehensive molecular mechanisms behind osteoclast differentiation is necessitated to overcome limitations and scarcity of available data, particularly in relation with the emerging roles of long non-coding RNAs (LncRNAs) in gene expression. In this study, we performed comprehensive and progressive analyses of the dynamic transcriptomes of murine osteoclasts, generated in vitro. We compared the total RNA-based transcriptomes of murine bone marrow derived cells with differentiated osteoclasts, while focusing on potentially novel genes and LncRNAs, to uncover critical genes and their associated pathways, which are differentially regulated during osteoclast differentiation. We found 4,214 differentially regulated genes during osteoclast differentiation, which included various types of LncRNAs. Among the upregulated protein coding genes not previously associated with osteoclast are Pheta1, Hagh, Gfpt1 and Nol4, while downregulated genes included Plau, Ltf, Sell and Zfp831. Notably, we report Nol4 as a novel gene related to osteoclast activity since Nol4 knockout mice Nol4em1(International Mouse Phenotyping Consortium)J exhibit increased bone mineral density. Moreover, the differentially expressed LncRNAs included antisense and long intergenic non-coding RNAs, among others. Overall, immune-related and metabolism-related genes were downregulated, while anatomical morphogenesis and remodeling-related genes were upregulated in early-differentiated osteoclasts with sustained downregulation of immune-related genes in mature osteoclasts. The gene signatures and the comprehensive transcriptome of osteoclast differentiation provided herein can serve as an invaluable resource for deciphering gene dysregulation in osteoclast-related pathologic conditions.
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Affiliation(s)
- Salman M Toor
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar
| | - Sachin Wani
- Rheumatology and Bone Disease Unit, Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
| | - Omar M E Albagha
- College of Health and Life Sciences, Hamad Bin Khalifa University, Doha, Qatar.,Rheumatology and Bone Disease Unit, Centre for Genomic and Experimental Medicine, Institute of Genetics and Cancer, University of Edinburgh, Edinburgh, United Kingdom
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