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Zhou X, Yang Y, Li Y, Liang G, Kang D, Zhou B, Li Q. Corrigendum: METTL3 contributes to osteosarcoma progression by increasing DANCR mRNA stability via m6A modification. Front Cell Dev Biol 2023; 11:1167476. [PMID: 37469575 PMCID: PMC10352142 DOI: 10.3389/fcell.2023.1167476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 06/16/2023] [Indexed: 07/21/2023] Open
Abstract
[This corrects the article DOI: 10.3389/fcell.2021.784719.].
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Affiliation(s)
- Xinying Zhou
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Yang Yang
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Yuejun Li
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Guojun Liang
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Dawei Kang
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Bing Zhou
- Department of Orthopedics, Longtan Hospital of Guangxi Autonomous Region, Liuzhou, China
| | - Qingchu Li
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
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Tian YT, Sun HX, Zhou XH, Tang BP. Long non-coding RNA DANCR alleviates acute myocardial infarction damage via regulating microRNA-509-5p/KLF transcription factor 13 pathway. Kaohsiung J Med Sci 2023. [PMID: 37042498 DOI: 10.1002/kjm2.12680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 03/06/2023] [Accepted: 03/14/2023] [Indexed: 04/13/2023] Open
Abstract
Acute myocardial infarction (AMI) is the most important cause of death among cardiovascular diseases. Long noncoding RNAs (lncRNAs) have been widely implicated in the regulation of AMI progression. Discrimination antagonizing nonprotein coding RNA (DANCR) alleviated hypoxia-caused cardiomyocyte damages, and the underlying mechanisms remain unclear. Here, we investigated the function and mechanism of DANCR in hypoxia-induced cardiomyocytes and AMI model by enzyme-linked immunosorbent assay, reactive oxygen species and adenosine triphosphate measurement, and mitochondrial activity determination. Additionally, luciferase reporter assay, immunoblotting, and qRT-PCR were performed to validate the interactions between DANCR/miR-509-5p and miR-509-5p/Kruppel-like factor 13 (KLF13). The role of DANCR was also verified in AMI model by overexpression. Our results showed that DANCR expression was significantly downregulated in hypoxia-induced cardiomyocytes or AMI model. Overexpression of DANCR significantly alleviated mitochondrial damages, reduced inflammation, and improved cardiac function in the AMI model. Furthermore, we demonstrated that miR-509-5p/KLF13 axis mediated the protective effect of DANCR. The current study highlighted the critical role of DANCR in alleviating AMI progression through targeting the miR-509-5p/KLF13 signaling axis, suggesting that DANCR may serve as a potential diagnostic marker or therapeutic target for AMI.
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Affiliation(s)
- Yun-Tao Tian
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Xinshi District, Urumqi, Xinjiang, China
- Department of Pacing and Electrophysiology, The First People's Hospital of Xinjiang Kashi Area, Kashgar, Xinjiang, China
| | - Hua-Xin Sun
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Xinshi District, Urumqi, Xinjiang, China
| | - Xian-Hui Zhou
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Xinshi District, Urumqi, Xinjiang, China
| | - Bao-Peng Tang
- Department of Pacing and Electrophysiology, The First Affiliated Hospital of Xinjiang Medical University, Xinshi District, Urumqi, Xinjiang, China
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An F, Yin Y, Ju W. Long noncoding RNA DANCR expression and its predictive value in patients with atherosclerosis. Bioengineered 2022; 13:6919-6928. [PMID: 35235755 PMCID: PMC8974009 DOI: 10.1080/21655979.2022.2033408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) act crucial roles in the progression of vascular diseases, including atherosclerosis. This study aims to investigate the expression levels of the atherosclerosis-associated lncRNA DANCR in patients diagnosed with atherosclerosis and whether its abnormal expression affects the progress of atherosclerosis. The expression of DANCR in the serum samples of all study participants was quantified using RT-qPCR. Then, the predictive capacities of DANCR for the detection of atherosclerosis patients were evaluated via receiver operating characteristic (ROC) curve analysis. The effects of DANCR on vascular smooth muscle cells (VSMCs) proliferation and migration were then explored using cell counting kit-8 (CCK-8) and Transwell migration assays. The DANCR exhibited increased expression trends in patients with atherosclerosis than healthy controls. Moreover, there were differences in the levels of low-density lipoprotein cholesterol (LDL-C), homocysteine (Hcy), and C-reactive protein (CRP) between the healthy controls and atherosclerosis patients. The DANCR expression was positively correlated with serum LDL-C, Hcy, and CRP levels. DANCR expression could distinguish patients with atherosclerosis from healthy individuals with a high area under the ROC curve (AUC), sensitivity, and specificity. Additionally, knockdown of DANCR weakened the proliferative abilities and migration capacities of VSMCs. It was also shown that DANCR could compete with miR-335-5p binding. Herein, it appears that the LncRNA DANCR was closely associated with the progression of atherosclerosis by targeting miR-335-5p, which might be a potential detective predictor and target for the treatment of atherosclerosis.
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Affiliation(s)
- Fengxia An
- Department of Health, Dongying People's Hospital, Shandong, China
| | - Yanliang Yin
- Department of Health, Dongying People's Hospital, Shandong, China
| | - Weixian Ju
- Department of Health, Dongying People's Hospital, Shandong, China
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Zhou X, Yang Y, Li Y, Liang G, Kang D, Zhou B, Li Q. METTL3 Contributes to Osteosarcoma Progression by Increasing DANCR mRNA Stability via m6A Modification. Front Cell Dev Biol 2022; 9:784719. [PMID: 35096816 PMCID: PMC8790117 DOI: 10.3389/fcell.2021.784719] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 10/28/2021] [Indexed: 01/22/2023] Open
Abstract
Background: Osteosarcoma (OS) is the most prevalent bone cancer among children and adolescents, with relatively high mortality rates. RNA N6-methyladenosine (m6A) is the most common human mRNA modification with diverse functions in a variety of biological processes. Previous studies indicated that methyltransferase-like 3 (METTL3), the first methyltransferase to be identified, acted as an oncogene or tumor suppressor in multiple human cancers. However, its functions and underlying mechanisms in OS progression remain unclear; therefore, we explored these processes. Methods: We used real-time quantitative PCR (RT-qPCR) and Western blot assays to explore METTL3 expression in OS tumor tissues and five OS cell lines to assess its clinical significance. To further examine the functional role of METTL3 during OS progression, CCK-8 analyses, transwell assays, and xenograft model studies were conducted after silencing METTL3. Additionally, underlying mechanisms were also explored using RIP-seq and RIP-qPCR approaches. Results: METTL3 was upregulated in OS tumor tissues and cell lines and was associated with a worse prognosis. Moreover, METTL3 silencing suppressed OS cell proliferation, migration, and invasion. Also, in vivo METTL3 oncogenic functions were confirmed in the xenograft model. Comprehensive mechanistic analyses identified long non-coding RNA (lncRNA) DANCR as a potential target of METTL3, as indicated by reduced DANCR levels after METTL3 silencing. Also, lncRNA DANCR knockdown repressed OS cell proliferation, migration, and invasion. Furthermore, both METTL3 and lncRNA DANCR silencing significantly suppressed OS growth and metastasis. Finally, we hypothesized that METTL3 regulated DANCR expression via m6A modification-mediated DANCR mRNA stability. Conclusion: METTL3 contributes to OS progression by increasing DANCR mRNA stability via m6A modification, meaning that METTL3 may be a promising therapeutic target for OS treatment.
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Affiliation(s)
- Xinying Zhou
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Yang Yang
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Yuejun Li
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Guojun Liang
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Dawei Kang
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Bing Zhou
- Department of Orthopedics, Longtan Hospital of Guangxi Autonomous Region, Liuzhou, China
| | - Qingchu Li
- Department of Spine Surgery, Center for Orthopaedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
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Wu X, Wang Z, Wang J, Tian X, Cao G, Gu Y, Shao F, Yan T. Exosomes Secreted by Mesenchymal Stem Cells Induce Immune Tolerance to Mouse Kidney Transplantation via Transporting LncRNA DANCR. Inflammation 2022; 45:460-475. [PMID: 34596768 DOI: 10.1007/s10753-021-01561-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 09/02/2021] [Accepted: 09/06/2021] [Indexed: 11/30/2022]
Abstract
Mesenchymal stem cells induce kidney transplant tolerance by increasing regulatory T (Treg) cells. Bone marrow mesenchymal stem cell exosomes (BMMSC-Ex) promote Treg cell differentiation. Long non-coding RNA differentiation antagonizing non-protein coding RNA (DANCR) is expressed in BMMSCs and can be encapsulated in exosomes. We aimed to explore the role of DANCR in BMMSC-Ex in immune tolerance after kidney transplantation and related mechanism. The isogenic/allograft kidney transplantation mouse model was established, and levels of serum creatinine (SCr) were determined. Hematoxylin-eosin staining was conducted to detect the inflammation, and immunohistochemistry was performed to detect the infiltration of CD4+ T cells. Levels of IFN-γ, IL-17, and IL-2 were examined by ELISA. Flow cytometry was conducted to determine Treg cells. In the allograft group, the inflammatory response was severe, CD4+ T cell infiltration, SCr levels, and plasma rejection-related factors were up-regulated, while injection of BMMSC-Ex reversed the results. BMMSC-Ex increased Treg cells in kidney transplantation mice. Interference with DANCR reversed the promoting effect of BMMSC-Ex on Treg cell differentiation. DANCR bound to SIRT1, promoted ubiquitination and accelerated its degradation. The injection of BMMSC-Ex (after interference with DANCR) promoted SIRT1 levels, inflammatory response, CD4+ T cell infiltration, SCr levels, and plasma rejection related factors' expression, while Treg cells were decreased. LncRNA DANCR in BMMSC-Ex promoted Treg cell differentiation and induced immune tolerance of kidney transplantation by down-regulating SIRT1 expression in CD4+ T cells.
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Affiliation(s)
- Xiaoqiang Wu
- Department of Urology, Henan Provincial Clinical Research Center for Kidney Disease, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450003, Henan, China
| | - Zhiwei Wang
- Department of Urology, Henan Provincial Clinical Research Center for Kidney Disease, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450003, Henan, China
| | - Junpeng Wang
- Department of Urology, Henan Provincial Clinical Research Center for Kidney Disease, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450003, Henan, China
| | - Xiangyong Tian
- Department of Urology, Henan Provincial Clinical Research Center for Kidney Disease, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450003, Henan, China
| | - Guanghui Cao
- Department of Urology, Henan Provincial Clinical Research Center for Kidney Disease, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450003, Henan, China
| | - Yue Gu
- Department of Nephrology, Henan Provincial Clinical Research Center for Kidney Disease, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, 450003, Henan, China
| | - Fengmin Shao
- Department of Nephrology, Henan Provincial Clinical Research Center for Kidney Disease, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Zhengzhou, 450003, Henan, China
| | - Tianzhong Yan
- Department of Urology, Henan Provincial Clinical Research Center for Kidney Disease, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, No. 7 Weiwu Road, Jinshui District, Zhengzhou, 450003, Henan, China.
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Abstract
Studies have shown that lncRNA DANCR is down-regulated in placental tissues of patients with preeclampsia (PE). The aim of this study was to explore the effect of lncRNA DANCR on trophoblast cells as well as its acting mechanism. We disrupted or overexpressed lncRNA DANCR in trophoblast cells HTR-8/SVneo and JEG-3 and detected the associated cellular functional changes by MTT, flow cytometry, Transwell experiment, and scratch experiment. The results showed that overexpression of lncRNA DANCR significantly increased the proliferation, invasion, migration, and EMT process of trophoblast cells. Interfering with lncRNA DANCR showed the opposite result. Further, the targeted interaction between lncRNA DANCR and miR-214-5p was confirmed by the dual-luciferase reporter gene assay. In addition, the expression of PI3K/AKT signaling pathway-related proteins was analyzed by Western blot. Overexpression of lncRNA DANCR can increase the phosphorylation of PI3K/AKT protein and activate this signaling pathway. In conclusion, the enforcing of lncRNA DANCR activates the activation of the PI3K/AKT pathway by down-regulating miR-214-5p, and promotes the migration and invasion of chorionic trophoblast cells. This provides a potential new target for PE therapy.
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Affiliation(s)
- Qian Zhang
- Department of Obstetrics, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, Zhengzhou, Henan, 450003, China
| | - Zhenzhen Wang
- Department of Obstetrics, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, Zhengzhou, Henan, 450003, China
| | - Xianghong Cheng
- Department of Obstetrics, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, Zhengzhou, Henan, 450003, China
| | - Haiying Wu
- Department of Obstetrics, Henan Provincial People's Hospital; People's Hospital of Zhengzhou University, Zhengzhou, Henan, 450003, China
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Luo Y, Wang Q, Teng L, Zhang J, Song J, Bo W, Liu D, He Y, Tan A. LncRNA DANCR promotes proliferation and metastasis in pancreatic cancer by regulating miRNA-33b. FEBS Open Bio 2019; 10:18-27. [PMID: 31515968 PMCID: PMC6943224 DOI: 10.1002/2211-5463.12732] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 08/21/2019] [Accepted: 09/10/2019] [Indexed: 12/16/2022] Open
Abstract
Increasing evidence indicates that long noncoding RNAs (lncRNAs) function as important regulators in biological processes and are dysregulated in various tumors. The lncRNA DANCR functions as an oncogene in various cancers, but elucidation of its role in pancreatic cancer (PC) requires further investigation. In the current study, we demonstrate that DANCR was increased in PC tissues and cell lines. Knockdown of DANCR significantly suppressed cell proliferation, migration, and invasion and influenced the levels of epithelial‐to‐mesenchymal transition‐associated proteins, as demonstrated by the observation of enhanced E‐cadherin levels and reduced N‐cadherin levels in PC cells. In addition, we identified direct binding to the predicted miR‐33b binding site on DANCR. We also showed that there is reciprocal repression between DANCR and miR‐33b. Furthermore, a miR‐33b inhibitor partially abrogated knockdown of DANCR and caused inhibitory effects. We also demonstrated that DANCR functions as a miR‐33b sponge to positively regulate MMP16 expression in PC cells. Collectively, the data reveal that DANCR exerts its function by regulating miR‐33b/MMP16 expression, implying an important role for a lncRNA–miRNA–mRNA functional network and suggesting a novel potential therapeutic target for PC.
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Affiliation(s)
- Yongyun Luo
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Qi Wang
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Lili Teng
- Department of Geriatric Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jie Zhang
- Medical Experimental Center, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Jianjun Song
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Wenping Bo
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Di Liu
- Department of Hepatobiliary Surgery, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Yaqin He
- Medical Experimental Center, General Hospital of Ningxia Medical University, Yinchuan, China
| | - Airong Tan
- Third Department of Oncology, Qingdao Municipal Hospital (East Campus), Qingdao, China
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Chen L, Liu J, Tang T, Zhang YC, Liu MZ, Xu LY, Zhang J. lncRNA differentiation antagonizing nonprotein coding RNA overexpression accelerates progression and indicates poor prognosis in pancreatic ductal adenocarcinoma. Onco Targets Ther 2018; 11:7955-7965. [PMID: 30519037 PMCID: PMC6235324 DOI: 10.2147/ott.s167065] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Background lncRNA differentiation antagonizing nonprotein coding RNA (lncRNA DANCR) has been suggested to play an oncogenic role in multiple cancers. However, to the best of our knowledge, the clinical significance and role of DANCR in pancreatic ductal adenocarcinoma (PDAC) has not been illuminated till now. The present study aims to identify the functional role of DANCR in PDAC. Methods The expression of DANCR was detected in PDAC cells and tissues. The correlation of DANCR expression and PDAC clinicopahological features was analysed. Kaplan-Meier method was used to depict the overall survival (OS) rate and shorter progression-free survival (PFS) of PDAC patients, and Log-rank test was performed to analyse the difference. Univariate and multivariate COX regression model were utilized to analyse the risk factors for prognosis. Transwell assay and Matrigel assay were conducted to detect the effect of DANCR on the migration and invasion of PDAC cells, respectively. Colony formation assay and Cell Counting Kit-8 (CCK-8) assay were performed to evaluate the function of DANCR on proliferation. The mechanisms of DANCR exerting its function were also explored. Results DANCR was revealed to promote PDAC progression, with relatively higher expression levels in PDAC cell lines and tissues. Correlation analysis of the clinicopathological features and DANCR expression found that high DANCR expression was statistically correlated with vascular invasion (P=0.013), advanced T stage (P=0.005), lymph node metastasis (P<0.001) and advanced TNM stage (P<0.001). Notably, survival analysis discovered that high DANCR expression predicted lower OS rate and shorter PFS period. In addition, high DANCR expression was identified as an independent risk factor for poor OS (HR=1.199, 95% CI=1.113–1.290, P<0.001) and PFS (HR=1.199, 95% CI=1.114–1.290, P<0.001) of PDAC. Moreover, in vitro assays detected that the migration and invasion of Panc1 cells with DANCR deficiency were significantly suppressed in the Transwell assay and the Matrigel assay. However, the motility of BxPC3 cells with DANCR overexpression was obviously increased. In addition, the loss of DANCR suppressed the proliferation of Panc1 cells in the CCK-8 assay and the colony formation assay, while ectopic expression of DANCR in BxPC3 cells promoted the proliferation. Besides, microRNA-33a-5p/AXL signaling pathway may be involved in mediating the function of DANCR. Conclusion Overexpression of lncRNA DANCR in PDAC is associated with cancer progression and predicts poor OS and PFS. DANCR could promote the proliferation and metastasis of PDAC cells. DANCR may serve as a potential prognostic marker and therapeutic target in PDAC.
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Affiliation(s)
- Lei Chen
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Jie Liu
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Tong Tang
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Yong-Chuan Zhang
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Ming-Zhong Liu
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Li-Ya Xu
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
| | - Jun Zhang
- General Surgery Department, Dazhou Central Hospital, Dazhou 635000, Sichuan, China,
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Fan X, Yuan J, Xie J, Pan Z, Yao X, Sun X, Zhang P, Zhang L. Long non-protein coding RNA DANCR functions as a competing endogenous RNA to regulate osteoarthritis progression via miR-577/SphK2 axis. Biochem Biophys Res Commun 2018; 500:658-664. [PMID: 29678573 DOI: 10.1016/j.bbrc.2018.04.130] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 04/17/2018] [Indexed: 11/25/2022]
Abstract
Long noncoding RNAs (lncRNAs) have been known to be involved in multiple diverse diseases, including osteoarthritis (OA). This study aimed to explore the role of differentiation antagonizing non-protein coding RNA (DANCR) in OA and identify the potential molecular mechanisms. The expression of DANCR in cartilage samples from patients with OA was detected using quantitative reverse transcription-polymerase chain reaction. The effects of DANCR on the viability of OA chondrocytes and apoptosis were explored using cell counting kit 8 assay and flow cytometry assay, respectively. Additionally, the interaction among DANCR, miR-577, and SphK2 was explored using dual-luciferase reporter and RIP assays. The present study found that DANCR was significantly upregulated in patients with OA. Functional assays demonstrated that DANCR inhibition suppressed the proliferation of OA chondrocytes and induced cell apoptosis. The study also showed that DANCR acted as a competitive endogenous RNA to sponge miR-577, which targeted the mRNA of SphK2 to regulate the survival of OA chondrocytes. In conclusion, the study revealed that lncRNA DANCR might promote the proliferation of OA chondrocytes and reduce apoptosis through the miR-577/SphK2 axis. Thus, lncRNA DANCR might be considered as a potential therapeutic target for OA treatment.
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Affiliation(s)
- Xiaochen Fan
- Department of Orthopaedics, Affiliated Zhenjiang First Hospital of Jiangsu University, Zhenjiang 212002, China
| | - Jishan Yuan
- Department of Orthopaedics, Affiliated Zhenjiang First Hospital of Jiangsu University, Zhenjiang 212002, China
| | - Jun Xie
- Department of Orthopaedics, Affiliated Zhenjiang First Hospital of Jiangsu University, Zhenjiang 212002, China
| | - Zhanpeng Pan
- Department of Orthopaedics, Affiliated Zhenjiang First Hospital of Jiangsu University, Zhenjiang 212002, China
| | - Xiang Yao
- Department of Orthopaedics, Affiliated Zhenjiang First Hospital of Jiangsu University, Zhenjiang 212002, China
| | - Xiangyi Sun
- Department of Orthopedics, Jinling Hospital, Nanjing University, School of Medicine, Nanjing 210002, China
| | - Pin Zhang
- Department of Orthopedics, Jinling Clinical Medical College of Nanjing Medical University, Nanjing 210002, China
| | - Lei Zhang
- Department of Orthopedics, Jinling Hospital, Nanjing University, School of Medicine, Nanjing 210002, China.
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Liu Y, Zhang M, Liang L, Li J, Chen YX. Over-expression of lncRNA DANCR is associated with advanced tumor progression and poor prognosis in patients with colorectal cancer. Int J Clin Exp Pathol 2015; 8:11480-11484. [PMID: 26617879 PMCID: PMC4637695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Accepted: 07/26/2015] [Indexed: 06/05/2023]
Abstract
Despite advances made in the diagnosis and treatment of human colorectal cancer (CRC), the long-term survival for CRC remains poor. Long non-coding RNA anti-differentiation ncRNA (lncRNA DANCR) was identified to be involved in carcinogenesis of hepatocellular carcinoma. While its expression in CRC and potential role in tumor progression is still unknown. In the present study, we investigated the expression level of lncRNA DANCR as well as its association with CRC progression and prognosis. The expression of lncRNA DANCR was detected by quantitative real-time PCR (qRT-PCR) in 104 CRC specimens. The prognostic value of lncRNA DANCR was further analysis. Our results showed that lncRNA DANCR expression was increased in CRC tissues compared with that in adjacent normal tissues (P<0.05). In addition, tumors with high lncRNA DANCR expression was correlated with TNM stage, histologic grade, and lymph node metastasis (P<0.05). Kaplan-Meier analysis showed that patients with high lncRNA DANCR expression had a shorter overall survival (OS) and disease-free survival (DFS) compared with the low lncRNA DANCR expression group (P<0.05). Moreover, in a multivariate Cox model, our results showed that lncRNA DANCR expression was an independent poor prognostic factor for both OS and DFS in CRC. Our data indicated that lncRNA DANCR expression might be a novel potential biomarker for CRC prognosis.
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Affiliation(s)
- Yang Liu
- Department of General Surgery, Qilu Hospital of Shandong UniversityJinan 250012, China
- Department of General Surgery, Central Hospital of TaianTaian 271000, China
| | - Meng Zhang
- Department of General Surgery, Central Hospital of TaianTaian 271000, China
| | - Lei Liang
- Department of General Surgery, Central Hospital of TaianTaian 271000, China
| | - Jian Li
- Department of General Surgery, Central Hospital of TaianTaian 271000, China
| | - Yu-Xin Chen
- Department of General Surgery, Qilu Hospital of Shandong UniversityJinan 250012, China
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