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Bocci F, Jolly MK, Levine H, Onuchic JN. Quantitative Characteristic of ncRNA Regulation in Gene Regulatory Networks. Methods Mol Biol 2019; 1912:341-366. [PMID: 30635901 DOI: 10.1007/978-1-4939-8982-9_14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
RNA is mostly known for its role in protein synthesis, where it encodes information for protein sequence in its messenger RNA (mRNA) form (translation). Yet, RNA molecules regulate several cellular processes other than translation. Here, we present an overview of several mathematical models that help understanding and characterizing the role of noncoding RNA molecules (ncRNAs) in regulating gene expression and protein synthesis. First, we discuss relatively simple models where ncRNAs can modulate protein synthesis via targeting a mRNA. Then, we consider the case of feedback interactions between ncRNAs and their target proteins, and discuss several biological applications where these feedback architectures modulate a cellular phenotype and control the levels of intrinsic and extrinsic noise. Building from these simple circuit motifs, we examine feed-forward circuit motifs involving ncRNAs that generate precise spatial and temporal patterns of protein expression. Further, we investigate the competition between ncRNAs and other endogenous RNA molecules and show that the cross talk between coding and noncoding RNAs can form large genetic circuits that involve up to hundreds of chemical species. Finally, we discuss the role of ncRNAs in modulating cell-cell signaling pathways and therefore the dynamics of spatiotemporal pattern formation in a tissue.
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Affiliation(s)
- Federico Bocci
- Center for Theoretical Biological Physics, Rice University, Houston, TX, USA.,Department of Chemistry, Rice University, Houston, TX, USA
| | - Mohit Kumar Jolly
- Center for Theoretical Biological Physics, Rice University, Houston, TX, USA
| | - Herbert Levine
- Center for Theoretical Biological Physics, Rice University, Houston, TX, USA. .,Department of Chemistry, Rice University, Houston, TX, USA. .,Department of Bioengineering, Rice University, Houston, TX, USA. .,Department of Physics and Astronomy, Rice University, Houston, TX, USA.
| | - José Nelson Onuchic
- Center for Theoretical Biological Physics, Rice University, Houston, TX, USA. .,Department of Chemistry, Rice University, Houston, TX, USA. .,Department of Physics and Astronomy, Rice University, Houston, TX, USA. .,Department of Biosciences, Rice University, Houston, TX, USA.
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202
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Abstract
Plant growth and productivity are greatly impacted by environmental stresses. Therefore, plants have evolved mechanisms which allow them to adapt to abiotic stresses through alterations in gene expression and metabolism. In recent years, studies have investigated the role of long noncoding RNA (lncRNA) in regulating gene expression in plants and characterized their involvement in various biological functions through their regulation of DNA methylation, DNA structural modifications, histone modifications, and RNA-RNA interactions. Genome-wide transcriptome analyses have identified various types of noncoding RNAs (ncRNAs) that respond to abiotic stress. These ncRNAs are in addition to the well-known housekeeping ncRNAs, such as rRNAs, tRNAs, snoRNAs, and snRNAs. In this review, recent research pertaining to the role of lncRNAs in the response of plants to abiotic stress is summarized and discussed.
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Affiliation(s)
- Akihiro Matsui
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, Japan.
- Plant Epigenome Regulation Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama, Japan.
| | - Motoaki Seki
- Plant Genomic Network Research Team, RIKEN Center for Sustainable Resource Science, Yokohama, Kanagawa, Japan.
- Plant Epigenome Regulation Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama, Japan.
- Kihara Institute for Biological Research, Yokohama City University, Yokohama, Kanagawa, Japan.
- Core Research for Evolutional Science and Technology, Japan Science and Technology, Kawaguchi, Saitama, Japan.
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203
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Wu L, Li Y, Zhang D, Huang Z, Du B, Wang Z, Yang L, Zhang Y. LncRNA NEXN-AS1 attenuates proliferation and migration of vascular smooth muscle cells through sponging miR-33a/b. RSC Adv 2019; 9:27856-27864. [PMID: 35530470 PMCID: PMC9070771 DOI: 10.1039/c9ra06282c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 08/27/2019] [Indexed: 12/27/2022] Open
Abstract
Non-protein-coding RNAs (lncRNAs) are emerging as important regulators in disease pathogenesis, including atherosclerosis (AS). Here, we investigated the role and underlying mechanisms of nexilin F-actin binding protein antisense RNA 1 (NEXN-AS1) on the proliferation and migration of vascular smooth muscle cells (VSMCs). Our data revealed that ox-LDL treatment resulted in decreased NEXN-AS1 expression and increased miR-33a/b levels in human aorta VSMCs (HA-VSMCs) in dose- and time-dependent manners. Overexpression of NEXN-AS1 mitigated the proliferation and migration of HA-VSMCs under ox-LDL stimulation using CCK-8 and wound-healing assays. Moreover, dual-luciferase reporter and RNA immunoprecipitation assays verified that NEXN-AS1 acted as molecular sponges of miR-33a and miR-33b in HA-VSMCs. MiR-33a or miR-33b silencing attenuated the proliferation and migration of ox-LDL-treated HA-VSMCs. Furthermore, miR-33a or miR-33b mediated the inhibitory effects of NEXN-AS1 overexpression on the proliferation and migration of ox-LDL-treated HA-VSMCs. Our study suggested that high level of NEXN-AS1 mitigated VSMC proliferation and migration under ox-LDL stimulation at least partly through sponging miR-33a and miR-33b, illuminating NEXN-AS1 as a novel therapeutic approach for AS treatment. Non-protein-coding RNAs (lncRNAs) are emerging as important regulators in disease pathogenesis, including atherosclerosis (AS).![]()
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Affiliation(s)
- Leiming Wu
- Department of Cardiology
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
| | - Yapeng Li
- Department of Cardiology
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
| | - Dianhong Zhang
- Department of Cardiology
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
| | - Zhen Huang
- Department of Cardiology
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
| | - Binbin Du
- Department of Cardiology
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
| | - Zheng Wang
- Department of Cardiology
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
| | - Lulu Yang
- Department of Cardiology
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
| | - Yanzhou Zhang
- Department of Cardiology
- The First Affiliated Hospital of Zhengzhou University
- Zhengzhou 450052
- China
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204
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Chen LP, Wang H, Zhang Y, Chen QX, Lin TS, Liu ZQ, Zhou YY. Robust analysis of novel mRNA-lncRNA cross talk based on ceRNA hypothesis uncovers carcinogenic mechanism and promotes diagnostic accuracy in esophageal cancer. Cancer Manag Res 2018; 11:347-358. [PMID: 30643460 PMCID: PMC6312067 DOI: 10.2147/cmar.s183310] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Background ceRNAs have emerged as pivotal players in the regulation of gene expression and play a crucial role in the physiology and development of various cancers. Nevertheless, the function and underlying mechanisms of ceRNAs in esophageal cancer (EC) are still largely unknown. Methods In this study, profiles of DEmRNAs, DElncRNAs, and DEmiRNAs between normal and EC tumor tissue samples were obtained from the Cancer Genome Atlas database using the DESeq package in R by setting the adjusted P<0.05 and |log2(fold change)|>2 as the cutoff. The ceRNA network (ceRNet) was initially constructed to reveal the interaction of these ceRNAs during carcinogenesis based on the bioinformatics of miRcode, miRDB, miRTarBase, and TargetScan. Then, independent microarray data of GSE6188, GSE89102, and GSE92396 and correlation analysis were used to validate molecular biomarkers in the initial ceRNet. Finally, a least absolute shrinkage and selection operator logistic regression model was built using an oncogenic ceRNet to diagnose EC more accurately. Results We successfully constructed an oncogenic ceRNet of EC, crosstalk of hsa-miR372-centered CADM2-ADAMTS9-AS2 and hsa-miR145-centered SERPINE1-PVT1. In addition, the risk-score model -0.0053*log2(CADM2)+0.0168*log2(SERPINE1)-0.0073*log2(ADAMTS9-AS2)+0.0905*log2(PVT1)+0.0047*log2(hsa-miR372)-0.0193*log2(hsa-miR145), (log2[gene count]) could improve diagnosis of EC with an AUC of 0.988. Conclusion We identified two novel pairs of ceRNAs in EC and its role of diagnosis. The pairs of hsa-miR372-centered CADM2-ADAMTS9-AS2 and hsa-miR145-centered SERPINE1-PVT1 were likely potential carcinogenic mechanisms of EC, and their joint detection could improve diagnostic accuracy.
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Affiliation(s)
- Li-Ping Chen
- Department of Rheumatology and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China, .,Chemical Biology Research Center, Department of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Hong Wang
- Department of Rheumatology and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China,
| | - Yi Zhang
- Chemical Biology Research Center, Department of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Qiu-Xiang Chen
- Department of Ultrasonography, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Tie-Su Lin
- Department of Gastroenterology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Zong-Qin Liu
- Department of Laboratory Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325000, China
| | - Yang-Yang Zhou
- Department of Rheumatology and Immunology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, China,
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205
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Thomas KT, Gross C, Bassell GJ. microRNAs Sculpt Neuronal Communication in a Tight Balance That Is Lost in Neurological Disease. Front Mol Neurosci 2018; 11:455. [PMID: 30618607 PMCID: PMC6299112 DOI: 10.3389/fnmol.2018.00455] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 11/26/2018] [Indexed: 12/13/2022] Open
Abstract
Since the discovery of the first microRNA 25 years ago, microRNAs (miRNAs) have emerged as critical regulators of gene expression within the mammalian brain. miRNAs are small non-coding RNAs that direct the RNA induced silencing complex to complementary sites on mRNA targets, leading to translational repression and/or mRNA degradation. Within the brain, intra- and extracellular signaling events tune the levels and activities of miRNAs to suit the needs of individual neurons under changing cellular contexts. Conversely, miRNAs shape neuronal communication by regulating the synthesis of proteins that mediate synaptic transmission and other forms of neuronal signaling. Several miRNAs have been shown to be critical for brain function regulating, for example, enduring forms of synaptic plasticity and dendritic morphology. Deficits in miRNA biogenesis have been linked to neurological deficits in humans, and widespread changes in miRNA levels occur in epilepsy, traumatic brain injury, and in response to less dramatic brain insults in rodent models. Manipulation of certain miRNAs can also alter the representation and progression of some of these disorders in rodent models. Recently, microdeletions encompassing MIR137HG, the host gene which encodes the miRNA miR-137, have been linked to autism and intellectual disability, and genome wide association studies have linked this locus to schizophrenia. Recent studies have demonstrated that miR-137 regulates several forms of synaptic plasticity as well as signaling cascades thought to be aberrant in schizophrenia. Together, these studies suggest a mechanism by which miRNA dysregulation might contribute to psychiatric disease and highlight the power of miRNAs to influence the human brain by sculpting communication between neurons.
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Affiliation(s)
- Kristen T. Thomas
- Department of Developmental Neurobiology, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Christina Gross
- Division of Neurology, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States
- Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH, United States
| | - Gary J. Bassell
- Department of Cell Biology, Emory University School of Medicine, Atlanta, GA, United States
- Department of Neurology, Emory University School of Medicine, Atlanta, GA, United States
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206
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Lin YH, Wu MH, Yeh CT, Lin KH. Long Non-Coding RNAs as Mediators of Tumor Microenvironment and Liver Cancer Cell Communication. Int J Mol Sci 2018; 19:ijms19123742. [PMID: 30477236 PMCID: PMC6321423 DOI: 10.3390/ijms19123742] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/21/2018] [Accepted: 11/21/2018] [Indexed: 02/06/2023] Open
Abstract
The tumor microenvironment is an important concept that defines cancer development not only through tumor cells themselves but also the surrounding cellular and non-cellular components, including stromal cells, blood vessels, infiltrating inflammatory cells, cancer stem cells (CSC), cytokines, and growth factors, which act in concert to promote tumor cell survival and metastasis. Hepatocellular carcinoma (HCC) is one of the most common and aggressive human malignancies worldwide. Poor prognosis is largely attributable to the high rate of tumor metastasis, highlighting the importance of identifying patients at risk in advance and developing novel therapeutic targets to facilitate effective intervention. Long non-coding RNAs (lncRNA) are a class of non-protein coding transcripts longer than 200 nucleotides frequently dysregulated in various cancer types, which have multiple functions in widespread biological processes, including proliferation, apoptosis, metastasis, and metabolism. lncRNAs are involved in regulation of the tumor microenvironment and reciprocal signaling between cancer cells. Targeting of components of the tumor microenvironment or cancer cells has become a considerable focus of therapeutic research and establishing the effects of different lncRNAs on this network should aid in the development of effective treatment strategies. The current review provides a summary of the essential properties and functional roles of known lncRNAs associated with the tumor microenvironment in HCC.
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MESH Headings
- Antineoplastic Agents/therapeutic use
- Biomarkers, Tumor/antagonists & inhibitors
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/metabolism
- Carcinoma, Hepatocellular/drug therapy
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/metabolism
- Carcinoma, Hepatocellular/pathology
- Cytokines/genetics
- Cytokines/metabolism
- Epigenesis, Genetic
- Gene Expression Regulation, Neoplastic
- Hepatocytes/drug effects
- Hepatocytes/metabolism
- Hepatocytes/pathology
- Humans
- Liver Neoplasms/drug therapy
- Liver Neoplasms/genetics
- Liver Neoplasms/metabolism
- Liver Neoplasms/pathology
- Macrophages/drug effects
- Macrophages/metabolism
- Macrophages/pathology
- Neoplasm Proteins/antagonists & inhibitors
- Neoplasm Proteins/genetics
- Neoplasm Proteins/metabolism
- Neoplastic Stem Cells/drug effects
- Neoplastic Stem Cells/metabolism
- Neoplastic Stem Cells/pathology
- RNA, Long Noncoding/antagonists & inhibitors
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- Signal Transduction
- Tumor Microenvironment/drug effects
- Tumor Microenvironment/genetics
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Affiliation(s)
- Yang-Hsiang Lin
- Department of Biochemistry, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
- Liver Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan.
| | - Meng-Han Wu
- Department of Biochemistry, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
| | - Chau-Ting Yeh
- Liver Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan.
| | - Kwang-Huei Lin
- Department of Biochemistry, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
- Liver Research Center, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan.
- Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
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207
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Jia Z, Peng J, Yang Z, Chen J, Liu L, Luo D, He P. Long non-coding RNA TP73‑AS1 promotes colorectal cancer proliferation by acting as a ceRNA for miR‑103 to regulate PTEN expression. Gene 2018; 685:222-229. [PMID: 30472379 DOI: 10.1016/j.gene.2018.11.072] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 11/20/2018] [Accepted: 11/20/2018] [Indexed: 01/10/2023]
Abstract
There is an increasing evidence that long non-coding RNAs (lncRNAs) play an important role in tumorigenesis and cancer progression. This study focused on the functional role of P73 antisense RNA 1T (TP73‑AS1), a lncRNA, in colorectal cancer (CRC). We found that TP73‑AS1 expression was significantly low in CRC tissues and cells, and high TP73‑AS1 expression was negatively associated with TNM stage, prognosis, overall survival, and disease-free survival in the CRC patients. Moreover, TP73‑AS1 overexpression dramatically inhibited CRC cell growth, promoted apoptosis, downregulated Bcl‑2 levels, and increased caspase‑3 expression. Furthermore, TP73‑AS1 expression levels were positively associated with PTEN levels in clinical CRC samples. As expected, TP73‑AS1 could upregulate PTEN expression in CRC cells. Mechanistically, PTEN was shown to be the target of miR‑103. Interestingly, TP73‑AS1 overexpression could increase PTEN expression through competitive binding to miR‑103. Functionally, our data show that such TP73‑AS1-induced PTEN expression through binding to miR‑103 facilitated CRC cell proliferation. Thus, we showed that TP73‑AS1 inhibits CRC cell growth by functioning as a ceRNA (competing endogenous RNAs) to regulate PTEN levels. Our findings provide new insights into the underlying molecular mechanisms of TP73‑AS1-mediated CRC.
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Affiliation(s)
- Zeming Jia
- Department of Colorectal & Anal Surgery, Hepatobiliary & Enteric Surgery Research Center of Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.
| | - Jian Peng
- Department of Colorectal & Anal Surgery, Hepatobiliary & Enteric Surgery Research Center of Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Zhi Yang
- Department of Colorectal & Anal Surgery, Hepatobiliary & Enteric Surgery Research Center of Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Jie Chen
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Ling Liu
- Department of General Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Dongren Luo
- Department of Colorectal & Anal Surgery, Hepatobiliary & Enteric Surgery Research Center of Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Panxiang He
- Department of Colorectal & Anal Surgery, Hepatobiliary & Enteric Surgery Research Center of Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
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208
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Luan X, Wang Y. LncRNA XLOC_006390 facilitates cervical cancer tumorigenesis and metastasis as a ceRNA against miR-331-3p and miR-338-3p. J Gynecol Oncol 2018; 29:e95. [PMID: 30207103 PMCID: PMC6189437 DOI: 10.3802/jgo.2018.29.e95] [Citation(s) in RCA: 151] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Revised: 07/19/2018] [Accepted: 07/31/2018] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Cervical cancer is one of the most common malignant tumors. Our previous results showed that long non-coding RNA (lncRNA) XLOC_006390 plays an important role in cervical cancer. In this study, we have explored the mechanism of action of lncRNA XLOC_006390. METHODS LncRNA XLOC_006390 was proposed to exercise its function as a competing endogenous RNA (ceRNA), and its potential targeted miRNAs was predicted through the database LncBase Predicted v.2. Two miRNAs, miR-331-3p, and miR-338-3p, were chosen for the study. Expression of miRNAs and lncRNA in cervical cancer cells and tissues was detected by reverse transcription polymerase chain reaction. To determine the correlation, silencing of XLOC_006390, over-expression of miR-331-3p, and miR-338-3p was performed in SiHa and Caski cell lines, respectively. RESULTS Based on the interactive effect between miRNA and lncRNA, miR-331-3p and miR-338-3p were significantly downregulated in cervical cancer cells and tissues, and their expression levels were negatively related to that of lncRNA. Our results also showed that the expression of miR-331-3p target gene NRP2, miR-338-3p target genes PKM2, EYA2 was significantly downregulated when the XLOC_006390 was knocked down. Further, XLOC_006390 was found to facilitate cervical cancer tumorigenesis and metastasis by downregulating miR-331-3p and miR-338-3p expression. CONCLUSION Taken together, our study demonstrated that XLOC_006390 may serve as a ceRNA and reversely regulates the expression of miR-331-3p and miR-338-3p, thus facilitating cervical cancer tumorigenesis and metastasis.
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Affiliation(s)
- Xiaotian Luan
- Department of Obstetrics and Gynecology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yankui Wang
- Department of Obstetrics and Gynecology, Affiliated Hospital of Qingdao University, Qingdao, China.
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209
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Dong Y, Huo X, Sun R, Liu Z, Huang M, Yang S. lncRNA Gm15290 promotes cell proliferation and invasion in lung cancer through directly interacting with and suppressing the tumor suppressor miR-615-5p. Biosci Rep 2018; 38:BSR20181150. [PMID: 30287504 PMCID: PMC6209606 DOI: 10.1042/bsr20181150] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 09/06/2018] [Accepted: 09/13/2018] [Indexed: 01/05/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) have been involved in occurrence and progression of multiple cancers. In the present study, we investigated the role of lncRNA Gm15290 in the proliferation and invasion of non-small cell lung cancer (NSCLC) cells. First, we found that lncRNA Gm15290 was markedly up-regulated in tumor tissues from NSCLC patients and NSCLC cell lines, compared with adjacent normal tissues and normal lung cell line HBE respectively. Then, different concentrations of pcDNA-Gm15290 expression vector and Gm15290 siRNA were respectively transfected into A549 NSCLC cells. Our results showed that overexpression of Gm15290 significantly increased the proliferation and invasion of A549 cells and suppressed cell apoptosis. Knockdown of Gm15290 suppressed A549 cell proliferation and invasion and promoted cell apoptosis. Subsequently, we explored the underlying mechanism through which Gm15290 promoted cell proliferation and invasion. The output of RNA hybrid bioinformatic tool revealed that Gm15290 potentially interacted with tumor suppressor miR-615-5p which displayed an opposite expression pattern in the cell lines and a strong negative correlation with the levels of Gm15290 in NSCLC patients (r2 = 0.9677, P<0.0001). The results of RNA pull-down assays confirmed that Gm15290 directly bound with miR-615-5p Gm15290 negatively regulated the expression of miR-615-5p and increased the protein levels of miR-615-5p target genes, including IGF2, AKT2, and SHMT2 Moreover, miR-615-5p mimic could antagonize the promoting effect of Gm15290 on cell proliferation and invasion.
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MESH Headings
- Adult
- Antagomirs/genetics
- Antagomirs/metabolism
- Apoptosis
- Base Sequence
- Carcinoma, Non-Small-Cell Lung/genetics
- Carcinoma, Non-Small-Cell Lung/metabolism
- Carcinoma, Non-Small-Cell Lung/pathology
- Carcinoma, Non-Small-Cell Lung/surgery
- Cell Line, Tumor
- Cell Proliferation
- Female
- Gene Expression Regulation, Neoplastic
- Glycine Hydroxymethyltransferase/genetics
- Glycine Hydroxymethyltransferase/metabolism
- Humans
- Insulin-Like Growth Factor II/genetics
- Insulin-Like Growth Factor II/metabolism
- Lung Neoplasms/genetics
- Lung Neoplasms/metabolism
- Lung Neoplasms/pathology
- Lung Neoplasms/surgery
- Male
- MicroRNAs/agonists
- MicroRNAs/antagonists & inhibitors
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Middle Aged
- Neoplasm Invasiveness
- Oligoribonucleotides/genetics
- Oligoribonucleotides/metabolism
- Proto-Oncogene Proteins c-akt/genetics
- Proto-Oncogene Proteins c-akt/metabolism
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/metabolism
- RNA, Small Interfering/genetics
- RNA, Small Interfering/metabolism
- Signal Transduction
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Affiliation(s)
- Yu Dong
- Department of Respiratory Medicine, Xi'an Central Hospital, Xi'an, China
- Department of Respiration Medicine, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Xiaoying Huo
- Department of Respiratory Medicine, Fourth Hospital of Xi'an, Xi'an, China
| | - Ruiying Sun
- Department of Respiration Medicine, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Zhiyan Liu
- Department of Respiratory Medicine, Xi'an Central Hospital, Xi'an, China
| | - Miaoyi Huang
- Department of Respiratory Medicine, Xi'an Central Hospital, Xi'an, China
| | - Shuanying Yang
- Department of Respiration Medicine, the Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
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210
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Shi J, Ye G, Zhao G, Wang X, Ye C, Thammavong K, Xu J, Dong J. Coordinative control of G2/M phase of the cell cycle by non-coding RNAs in hepatocellular carcinoma. PeerJ 2018; 6:e5787. [PMID: 30364632 PMCID: PMC6197396 DOI: 10.7717/peerj.5787] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 09/18/2018] [Indexed: 12/13/2022] Open
Abstract
Objective To investigate the interaction of non-coding RNAs (ncRNAs) in hepatocellular carcinoma. Methods We compared the ncRNAs and mRNAs expression profiles of hepatocellular carcinoma and adjacent tissue by microarray and RT-PCR. The relationship between different ncRNAs and mRNA was analyzed using bioinformatics tools. A regulatory model of ncRNAs in hepatocellular carcinoma cells was developed. Results A total of 1,704 differentially expressed lncRNAs, 57 miRNAs, and 2,093 mRNAs were identified by microarray analyses. There is a co-expression relationship between two ncRNAs (miRNA-125b-2-3p and lncRNA P26302). Bioinformatics analysis demonstrated cyclin-dependent kinases 1 and CyclinA2 as potential targets of miR-125b-2-3p and Polo-like kinase 1 as potential target of lncRNAP26302. All three gene are important components in the G2/M phase of cell cycle. Subsequently real-time polymerase chain reaction (PCR) studies confirmed these microarray results. Conclusion MiR-125b-2-3p and lncRNAP26302 may affect the G2/M phase of the cell cycle through the regulation of their respective target genes. This study shows a role of ncRNAs in pathogenesis of hepatocellular carcinoma at molecular level, providing a basis for the future investigation aiming at early diagnosis and novel treatment of hepatocellular carcinoma.
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Affiliation(s)
- Jun Shi
- Department of Hepatobiliary and Pancreas Surgery, Beijing Tsinghua Changguang Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Guangqiang Ye
- The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, China
| | - Guoliang Zhao
- The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, China
| | - Xuedong Wang
- Department of Hepatobiliary and Pancreas Surgery, Beijing Tsinghua Changguang Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
| | - Chunhui Ye
- The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, China
| | - Keooudone Thammavong
- The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, China
| | - Jing Xu
- The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning, China
| | - Jiahong Dong
- Department of Hepatobiliary and Pancreas Surgery, Beijing Tsinghua Changguang Hospital, School of Clinical Medicine, Tsinghua University, Beijing, China
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211
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Cai Y, Wan J. Competing Endogenous RNA Regulations in Neurodegenerative Disorders: Current Challenges and Emerging Insights. Front Mol Neurosci 2018; 11:370. [PMID: 30344479 PMCID: PMC6182084 DOI: 10.3389/fnmol.2018.00370] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2018] [Accepted: 09/18/2018] [Indexed: 12/14/2022] Open
Abstract
The past decade has witnessed exciting breakthroughs that have contributed to the richness and complexity of a burgeoning modern RNA world, and one particular breakthrough-the competing endogenous RNA (ceRNA) hypothesis-has been described as the "Rosetta Stone" for decoding the RNA language used in regulating RNA crosstalk and modulating biological functions. The proposed far-reaching mechanism unites diverse RNA species and provides new insights into previously unrecognized RNA-RNA interactions and RNA regulatory networks that perhaps determine gene expression in an organized, hierarchical manner. The recently uncovered ceRNA regulatory loops and networks have emphasized the power of ceRNA regulation in a wide range of developmental stages and pathological contexts, such as in tumorigenesis and neurodegenerative disorders. Although the ceRNA hypothesis drastically enhanced our understanding of RNA biology, shortly after the hypothesis was proposed, disputes arose in relation mainly to minor discrepancies in the reported effects of ceRNA regulation under physiological conditions, and this resulted in ceRNA regulation becoming an extensively studied and fast-growing research field. Here, we focus on the evidence supporting ceRNA regulation in neurodegenerative disorders and address three critical points related to the ceRNA regulatory mechanism: the microRNA (miRNA) and ceRNA hierarchies in cross-regulations; the balance between destabilization and stable binding in ceRNA-miRNA interactions; and the true extent to which ceRNA regulatory mechanisms are involved in both health and disease, and the experimental shortcomings in current ceRNA studies.
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Affiliation(s)
- Yifei Cai
- Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, China
| | - Jun Wan
- Shenzhen Key Laboratory for Neuronal Structural Biology, Biomedical Research Institute, Shenzhen Peking University - The Hong Kong University of Science and Technology Medical Center, Shenzhen, China.,Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong
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212
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Borah P, Das A, Milner MJ, Ali A, Bentley AR, Pandey R. Long Non-Coding RNAs as Endogenous Target Mimics and Exploration of Their Role in Low Nutrient Stress Tolerance in Plants. Genes (Basel) 2018; 9:E459. [PMID: 30223541 PMCID: PMC6162444 DOI: 10.3390/genes9090459] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/05/2018] [Accepted: 09/07/2018] [Indexed: 12/14/2022] Open
Abstract
Long non-coding RNA (lncRNA) research in plants has recently gained momentum taking cues from studies in animals systems. The availability of next-generation sequencing has enabled genome-wide identification of lncRNA in several plant species. Some lncRNAs are inhibitors of microRNA expression and have a function known as target mimicry with the sequestered transcript known as an endogenous target mimic (eTM). The lncRNAs identified to date show diverse mechanisms of gene regulation, most of which remain poorly understood. In this review, we discuss the role of identified putative lncRNAs that may act as eTMs for nutrient-responsive microRNAs (miRNAs) in plants. If functionally validated, these putative lncRNAs would enhance current understanding of the role of lncRNAs in nutrient homeostasis in plants.
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Affiliation(s)
- Priyanka Borah
- Mineral Nutrition Laboratory, Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India.
- Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India.
| | - Antara Das
- ICAR-National Research Centre on Plant Biotechnology, New Delhi 110012, India.
| | - Matthew J Milner
- The John Bingham Laboratory, National Institute of Agricultural Botany (NIAB), Huntingdon Road, Cambridge CB30LE, UK.
| | - Arif Ali
- Department of Biosciences, Jamia Millia Islamia, New Delhi 110025, India.
| | - Alison R Bentley
- The John Bingham Laboratory, National Institute of Agricultural Botany (NIAB), Huntingdon Road, Cambridge CB30LE, UK.
| | - Renu Pandey
- Mineral Nutrition Laboratory, Division of Plant Physiology, ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India.
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213
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Chen ZY, Du Y, Wang L, Liu XH, Guo J, Weng XD. MiR-543 promotes cell proliferation and metastasis of renal cell carcinoma by targeting Dickkopf 1 through the Wnt/β-catenin signaling pathway. J Cancer 2018; 9:3660-3668. [PMID: 30405834 PMCID: PMC6216004 DOI: 10.7150/jca.27124] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/27/2018] [Indexed: 12/25/2022] Open
Abstract
Background: Renal cell carcinoma (RCC) is a common malignancy with high morbidity. MicroRNAs (miRNAs) have been demonstrated to be critical post-transcriptional regulators in tumorigenesis. This study aimed to investigate the effect of miR-543 on the proliferation and metastasis of RCC. Material and Methods: The expression of miR-543 was examined in clinical samples and RCC cell lines. A498 and 786-O cell lines were employed and transfected with miR-543 inhibitor or miR-543 mimics. The correlation between miR-543 and DKK-1 was determined by luciferase reporter assay. Cell viability and cell cycle were determined by CCK8 and flow cytometry assay. Cell migration and invasion capacity were examined by transwell assay. The protein level of DKK1, β-catenin and pGSK-3β were analyzed by western blotting. Results: miR-543 was found to be up-regulated in RCC cell lines. Further studies identified DKK-1 as a direct target of miR-543. Moreover, miR-543 overexpression suppressed the expression of DKK-1, and promoted cell proliferation, migration and invasion capacity, while knockdown of miR-543 abrogated above results. MiR-543 knockdown also decreased β-catenin and pGSK-3β levels. In vivo assay verified that miR-543 acts as an oncogene through the regulation of DKK-1 and Wnt/β-catenin signaling pathway. Conclusion: Our study indicated that miR-543 negatively regulate the expression of DKK-1 in vitro. MiR-543 promotes malignancy phenotypes of RCC both in vitro and in vivo. This regulatory effect of miR-543 may be associated with Wnt/β-catenin signaling pathway. Therefore, miR-543 could be used as a biomarker for predicting the progression of RCC.
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Affiliation(s)
- Zhi-Yuan Chen
- Department of Urology, Ren min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Yang Du
- Department of Urology, Ren min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Lei Wang
- Department of Urology, Ren min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Xiu-Heng Liu
- Department of Urology, Ren min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Jia Guo
- Department of Urology, Ren min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Xiao-Dong Weng
- Department of Urology, Ren min Hospital of Wuhan University, Wuhan, Hubei 430000, China
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214
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Fawzy MS, Ellawindy A, Hussein MH, Khashana MS, Darwish MK, Abdel-Daim MM, Toraih EA. Long noncoding RNA H19, and not microRNA miR-326, is over-expressed and predicts survival in glioblastoma. Biochem Cell Biol 2018; 96:832-839. [PMID: 30096248 DOI: 10.1139/bcb-2018-0122] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Glioblastoma (GB) represents the most common malignant brain tumor, which, despite extensive research, remains of poor prognosis. The focus of recent studies of GB pathogenesis has shifted to the study of the role of noncoding RNAs (ncRNAs). In this study, we examined the expression levels of the microRNA miR-326 and the long ncRNA H19 (on which a miR-326 putative binding site was found by in-silico analysis) in brain tumor tissue from GB patients as compared to cancer-free brain tissue. Relative expression levels of miR-326 were not found to be significantly altered in GB patients. By comparison, H19 was consistently over-expressed in all GB patients (p < 0.001), and correlated with poorer overall survival (OS) and progression-free survival (PFS) (p = 0.026 and p = 0.045, respectively). At a cutoff value of 5.27, H19 up-regulation could predict OS in GB patients, with a 71.4% sensitivity and 59.6% specificity (p = 0.026). The current GB patients were clustered by the multivariate analysis into 4 groups based on miR-326 and H19 expression profiles, age at diagnosis, and PFS. Our data suggest a role for H19 in the pathogenesis of GB and could be a potential prognostic biomarker for GB.
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Affiliation(s)
- Manal S Fawzy
- Department of Medical Biochemistry, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.,Department of Biochemistry, Faculty of Medicine, Northern Border University, Arar, Saudi Arabia
| | - Alia Ellawindy
- Genetics Unit, Histology and Cell Biology Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
| | | | | | - Marwa K Darwish
- Department of Chemistry, Biochemistry Branch, Faculty of Science, Suez University, Suez, Egypt
| | - Mohamed M Abdel-Daim
- Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Eman A Toraih
- Genetics Unit, Histology and Cell Biology Department, Faculty of Medicine, Suez Canal University, Ismailia, Egypt.,Center of Excellence in Molecular and Cellular Medicine, Faculty of Medicine, Suez Canal University, Ismailia, Egypt
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215
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Tang T, Cheng Y, She Q, Jiang Y, Chen Y, Yang W, Li Y. Long non-coding RNA TUG1 sponges miR-197 to enhance cisplatin sensitivity in triple negative breast cancer. Biomed Pharmacother 2018; 107:338-346. [PMID: 30098551 DOI: 10.1016/j.biopha.2018.07.076] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 07/13/2018] [Accepted: 07/14/2018] [Indexed: 02/01/2023] Open
Abstract
Breast cancer is the leading cause of women death worldwide. Several long non-coding RNAs (lncRNAs) have been identified as oncogenes or tumor suppressors during the progression of cancers. However, the role of taurine upregulated gene (TUG1) in mediating the chemotherapy sensitivity of triple negative breast cancer (TNBC) has not been studied yet. In TNBC patients, we observed a significant decrease of TUG1 in tumor tissues compared to the normal tissues. Similarly, TUG1 expression was significantly decreased in TNBC cell lines compared with normal breast epithelial cell line and cell lines of other subtypes of breast cancer. In MDA-MB-231 and BT549, cisplatin induced cell growth arrest was remarkably augmented by overexpression of TUG1 and was significantly reduced by TUG1 silencing. Moreover, very low concentration of cisplatin caused cell proliferation inhibition in TUG1-overexpressed-TNBC cells. In addition, we found that TUG1 negatively regulated miR-197 expression in the tested TNBC cell lines. Sponging of TUG1 to miR-197 was proved by a dual luciferase reporter assay. We further predicted and validated that nemo-like kinase (NLK), which was positively controlled by TUG1, was a target gene of miR-197. Via regulation of miR-197/NLK, TUG1 inactivated WNT signaling pathway and thus increasing chemotherapy sensitivity of TNBC cells. Analysis of TCGA database showed that higher expression of TUG1 was associated with better prognosis in breast cancer patients. Our current study drew a preliminary conclusion that TUG1 was involved in chemotherapy sensitivity in TNBC cells.
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Affiliation(s)
- Tielei Tang
- Department of Breast Surgery, Baoji Municipal Central Hospital, Baoji, Shannxi, 721008, China
| | - Yonggang Cheng
- Department of Breast Surgery, Baoji Municipal Central Hospital, Baoji, Shannxi, 721008, China
| | - Qing She
- Department of Breast Surgery, Baoji Municipal Central Hospital, Baoji, Shannxi, 721008, China
| | - Yaru Jiang
- Department of Breast Surgery, Baoji Municipal Central Hospital, Baoji, Shannxi, 721008, China
| | - Yuanyuan Chen
- Department of Breast Surgery, Baoji Municipal Central Hospital, Baoji, Shannxi, 721008, China
| | - Wenqiang Yang
- Department of Breast Surgery, Baoji Municipal Central Hospital, Baoji, Shannxi, 721008, China
| | - Youhuai Li
- Department of Breast Surgery, Baoji Municipal Central Hospital, Baoji, Shannxi, 721008, China.
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216
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Yan H, Yang X, Zhao X, Wang H. Identification of genes and pathways related with cerebral small vessel disease based on a long non-coding RNA-mediated, competitive endogenous RNA network. Exp Ther Med 2018; 16:121-126. [PMID: 29896231 PMCID: PMC5995035 DOI: 10.3892/etm.2018.6148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 04/18/2018] [Indexed: 11/13/2022] Open
Abstract
This study aimed to investigate the cerebral small vessel disease (SVD), an intrinsic disorder of the brain's perforating arterioles, which could cause serious cognitive decreasing and trigger dementia. In this study, we present a multi-step computational approach to construct a functional SVD long non-coding RNA (lncRNA)-mediated ceRNA network (LMCN) by integrating genome-wide lncRNA and mRNA expression profiles, miRNA-target interactions, and functional analyses. We used hypergeometric test to evaluate enrichment significance of miRNAs and we obtained the LMCN, which contained 27 lncRNAs, 7,229 mRNA, and 28,871 lncRNAs-mRNA interrelationship pairs. What's more, co-expression analysis was utilized to constructe a competitive endogenous RNAs (ceRNAs) interaction network which comprised of 21 lncRNAs, 129 mRNAs and 141 interaction pairs. We determined that metastasis-associated lung adenocarcinoma transcript 1 and MIR155 host gene acted synergistically to regulate mRNAs in a network module of the competitive LMCN. Moreover, 7 genes were obtained through Gene Ontology enrichment. In addition, 29 mRNA enriched pathways significantly associated with lncRNAs was obtained via Fisher test. In conclusion, we identified 7 potential lncRNAs and 29 possible lncRNA-mediated pathways associated with SVD. Thus, ceRNAs could accelerate biomarker discovery and therapeutic development in SVD.
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Affiliation(s)
- Hui Yan
- Department of Neurology, The People's Hospital of Yucheng, Yucheng, Dezhou, Shandong 251200, P.R. China
| | - Xiaoli Yang
- Department of Neurology, The People's Hospital of Yucheng, Yucheng, Dezhou, Shandong 251200, P.R. China
| | - Xueman Zhao
- Department of Neurology, The People's Hospital of Yucheng, Yucheng, Dezhou, Shandong 251200, P.R. China
| | - Huankun Wang
- Department of Neurology, The People's Hospital of Yucheng, Yucheng, Dezhou, Shandong 251200, P.R. China
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217
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Mao Y, Fu Z, Zhang Y, Dong L, Zhang Y, Zhang Q, Li X, Liu J. A seven-lncRNA signature predicts overall survival in esophageal squamous cell carcinoma. Sci Rep 2018; 8:8823. [PMID: 29891973 PMCID: PMC5995883 DOI: 10.1038/s41598-018-27307-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 05/25/2018] [Indexed: 12/11/2022] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is one of the most common types of cancer and the leading causes of cancer-related mortality worldwide, especially in Eastern Asia. Here, we downloaded the microarray data of lncRNA expression profiles of ESCC patients from Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) data sets and divided into training, validation and test set. The random survival forest (RSF) algorithm and Cox regression analysis were applied to identify a seven-lncRNA signature. Then the predictive ability of the seven-lncRNA signature was evaluated in the validation and test set using Kaplan-Meier test, time-dependent receiver operating characteristic (ROC) curves and dynamic area under curve (AUC). Stratified analysis and multivariate Cox regression also demonstrated the independence of the signature in prognosis prediction from other clinical factors. Besides, the predict accuracy of lncRNA signature was much better than that of tumor-node-metastasis (TNM) stage in all the three sets. LncRNA combined with TNM displayed better prognostic predict ability than either alone. The role of LINC00173 from the signature in modulating the proliferation and cell cycle of ESCC cells was also observed. These results indicated that this seven-lncRNA signature could be used as an independent prognostic biomarker for prognosis prediction of patients with ESCC.
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Affiliation(s)
- Yu Mao
- Department of Oncology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China.
| | - Zhanzhao Fu
- Department of Oncology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
| | - Yunjie Zhang
- Department of Oncology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
| | - Lixin Dong
- Department of Oncology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
| | - Yanqiu Zhang
- Department of Oncology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
| | - Qiang Zhang
- Department of Oncology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
| | - Xin Li
- Department of Oncology, The First Hospital of Qinhuangdao, Qinhuangdao, Hebei, China
| | - Jia Liu
- Institute of basic medical sciences, Qilu Hospital, Shandong University, Jinan, Shandong, China
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218
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Qu Z, Quan Z, Zhang Q, Wang Z, Song Q, Zhuang X, Fu C, Xu F, Liu Y, Wang Y, Wang Z, Liu Y. Comprehensive evaluation of differential lncRNA and gene expression in patients with intervertebral disc degeneration. Mol Med Rep 2018; 18:1504-1512. [PMID: 29901136 PMCID: PMC6072222 DOI: 10.3892/mmr.2018.9128] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2017] [Accepted: 01/18/2018] [Indexed: 12/21/2022] Open
Abstract
The present study aimed to identify novel intervertebral disc degeneration (IDD)-associated long noncoding (lnc)RNAs and genes. The lncRNA and mRNA microarray dataset GSE56081 was downloaded from the Gene Expression Omnibus database and included 5 samples from patients with degenerative lumbar nucleus pulposus and 5 normal controls. Differentially expressed lncRNAs or differentially expressed genes (DEGs) were identified and co-expression network analysis was performed followed by functional analysis for genes in the network. Additionally, a microRNA (miRNA)-lncRNA-mRNA competing endogenous RNA (ceRNA) regulatory network was constructed based on DEGs and lncRNAs in the co-expression network. Furthermore, a literature search was performed to identify specific miRNAs that had been previously associated with IDD and a specific miRNA-associated ceRNA network was extracted from the co-expression network. A total of 967 genes and 137 lncRNAs were differentially expressed between IDD samples and controls. A co-expression network was constructed and contained 39 differentially expressed lncRNAs and 209 DEGs, which were primarily involved in ‘skeletal system development’, ‘response to mechanical stimulus’ and ‘bone development’. Furthermore, a ceRNA network was established, including 79 miRNAs, 9 downregulated lncRNAs and 148 DEGs. The identified miRNAs included a previously reported disease-associated miRNA, hsa-miR-140. The present study demonstrated that hsa-miR-140 was regulated by three lncRNAs in the hsa-miR-140-associated ceRNA network, including KCNQ1 opposite strand/antisense transcript 1 (KCNQ1OT1), OIP5 antisense RNA 1 (OIP5-AS1) and UGDH antisense RNA 1 (UGDH-AS1). KCNQ1OT1 was co-expressed with neurochondrin (NCDN) and lon peptidase 2, peroxisomal. In addition, the lncRNAs OIP5-AS1 and UGDH-AS1 targeted several overlapping co-expressed genes, including forkhead box F1 (FOXF1) and polycystin 1, transient receptor potential channel interacting (PKD1). Therefore, KCNQ1OT1 may regulate the expression of NCDN, and OIP5-AS1 and UGDH-AS1 may affect the expression of FOXF1 and PKD1 in IDD. Further experiments are required to validate the results of the present study, which may provide valuable insights into the identification of novel biomarkers associated with IDD.
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Affiliation(s)
- Zhigang Qu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Zhe Quan
- Department of Neurosurgery, Shanghai Fengxian District Central Hospital, Shanghai 201400, P.R. China
| | - Qi Zhang
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Zhenyu Wang
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Qingxu Song
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xinming Zhuang
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Changfeng Fu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Feng Xu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yadong Liu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Yuanyi Wang
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Zheng Wang
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450000, P.R. China
| | - Yi Liu
- Department of Spine Surgery, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
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219
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Guo H, Yang S, Li S, Yan M, Li L, Zhang H. LncRNA SNHG20 promotes cell proliferation and invasion via miR-140-5p-ADAM10 axis in cervical cancer. Biomed Pharmacother 2018; 102:749-757. [DOI: 10.1016/j.biopha.2018.03.024] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 03/03/2018] [Accepted: 03/05/2018] [Indexed: 11/28/2022] Open
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220
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Wang B, Chen H, Zhang C, Yang T, Zhao Q, Yan Y, Zhang Y, Xu F. Effects ofhsa_circRBM23on Hepatocellular Carcinoma Cell Viability and Migration as Produced by Regulating miR-138 Expression. Cancer Biother Radiopharm 2018; 33:194-202. [PMID: 29916745 DOI: 10.1089/cbr.2017.2424] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
- Baoyong Wang
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Gastroenterology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Hongwei Chen
- Department of Gastroenterology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Chunfen Zhang
- Department of Gastroenterology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Tian Yang
- Department of Gastroenterology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Qiaofei Zhao
- Department of Gastroenterology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Yifan Yan
- Department of Gastroenterology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Yu Zhang
- Department of Gastroenterology, Luoyang Central Hospital Affiliated to Zhengzhou University, Luoyang, China
| | - Feng Xu
- Department of Gastroenterology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Abstract
PURPOSE OF REVIEW Noncoding RNAs have emerged as important regulators of cellular and systemic lipid metabolism. In particular, the enigmatic class of long noncoding RNAs have been shown to play multifaceted roles in controlling transcriptional and posttranscriptional gene regulation. In this review, we discuss recent advances, current challenges and future opportunities in understanding the roles of lncRNAs in the regulation of lipid metabolism during health and disease. RECENT FINDINGS Despite comprising the majority of the transcriptionally active regions of the human genome, lncRNA functions remain poorly understood, with fewer than 1% of human lncRNAs functionally characterized. Broadly defined as nonprotein coding transcripts greater than 200 nucleotides in length, lncRNAs execute their functions by forming RNA-DNA, RNA-protein, and RNA-RNA interactions that regulate gene expression through diverse mechanisms, including epigenetic remodeling of chromatin, transcriptional activation or repression, posttranscriptional regulation of mRNA, and modulation of protein activity. It is now recognized that in lipid metabolism, just as in other areas of biology, lncRNAs operate to regulate the expression of individual genes and gene networks at multiple different levels. SUMMARY The complexity revealed by recent studies showing how lncRNAs can alter systemic and cell-type-specific cholesterol and triglyceride metabolism make it clear that we have entered a new frontier for discovery that is both daunting and exciting.
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Affiliation(s)
- Coen van Solingen
- Leon H. Charney Division of Cardiology, Department of Medicine, New York University School of Medicine, New York, New York, USA
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222
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Chen Y, Zhao F, Cui D, Jiang R, Chen J, Huang Q, Shi J. HOXD-AS1/miR-130a sponge regulates glioma development by targeting E2F8. Int J Cancer 2018; 142:2313-2322. [PMID: 29341117 DOI: 10.1002/ijc.31262] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 12/04/2017] [Accepted: 01/03/2018] [Indexed: 12/20/2022]
Abstract
Glioma development is an extremely complex process with changes occurring in numerous genes. HOXD antisense growth-associated long noncoding RNA (HOXD-AS1), an important long noncoding RNA (lncRNA), is known to regulate metastasis-related gene expression in bladder cancer, ovarian cancer and neuroblastoma. Here, we elucidated the function and possible molecular mechanisms of lncRNA HOXD-AS1 in human glioma cells. Our results proved that HOXD-AS1 expression was upregulated in glioma tissues and in glioma cell lines. HOXD-AS1 overexpression promoted cell migration and invasion in vitro, whereas knockdown of HOXD-AS1 expression repressed these cellular processes. Mechanistic studies further revealed that HOXD-AS1 could compete with the transcription factor E2F8 to bind with miR-130a, thus affecting E2F8 expression. Additionally, reciprocal repression was observed between HOXD-AS1 and miR-130a, and miR-130a mediated the tumor-suppressive effects of HOXD-AS1 knockdown. Taken together, these results provide a comprehensive analysis of the role of HOXD-AS1 in glioma cells and offer important clues to understand the key roles of competing endogenous RNA (ceRNA) mechanisms in human glioma.
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Affiliation(s)
- Yinan Chen
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Fengbo Zhao
- Medical School of Nantong University, 19 Qixiu Road, Basic Medical Research Center, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Daming Cui
- Department of Neurosurgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, People's Republic of China
| | - Rui Jiang
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Jian Chen
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Qingfeng Huang
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu Province, 226001, People's Republic of China
| | - Jinlong Shi
- Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair and Department of Neurosurgery, Affiliated Hospital of Nantong University, 20 Xisi Road, Nantong, Jiangsu Province, 226001, People's Republic of China
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Estrogen receptor β promotes renal cell carcinoma progression via regulating LncRNA HOTAIR-miR-138/200c/204/217 associated CeRNA network. Oncogene 2018; 37:5037-5053. [DOI: 10.1038/s41388-018-0175-6] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 09/14/2017] [Accepted: 10/14/2017] [Indexed: 12/22/2022]
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224
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Genome-wide analysis of circular RNAs in bovine cumulus cells treated with BMP15 and GDF9. Sci Rep 2018; 8:7944. [PMID: 29786687 PMCID: PMC5962577 DOI: 10.1038/s41598-018-26157-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 05/08/2018] [Indexed: 12/22/2022] Open
Abstract
Circular RNAs (circRNAs) are important members of the non-coding RNA family, and those relating to animal physiologies have been widely studied in recent years. This study aimed to explore the roles of circRNAs in the regulation of follicular development. We constructed four bovine cumulus cell cDNA libraries, including a negative control group (NC) and groups treated with BMP15, GDF9 and BMP15 + GDF9, and we sequenced the libraries on the Illumina HiSeq Xten platform. We identified 1706 circRNAs and screened for differential circRNA expression. We conducted a bioinformatics analysis of these circRNAs and screened for differential circRNAs. Functional annotation and enrichment analysis of the host genes showed that the differential circRNAs were related to locomotion, reproduction, biological adhesion, growth, rhythmic processes, biological phases and hormone secretion. According to the differential expression of circRNA between groups, there were 3 up-regulated and 6 down-regulated circRNAs in the BMP15 group as well as 12 up-regulated and 24 down-regulated circRNAs in the GDF9 group. Co-addition of both BMP15 and GDF9 resulted in 15 up-regulated and 13 down-regulated circRNAs. circ_n/a_75,circ_12691_1 and circ_n/a_303 were altered in both the BMP15 and GDF9 groups as well as in the BMP15 + GDF9 combination group. We focused on these three circRNAs because they were potentially associated with the additive effect of BMP15 and GDF9. Quantitative PCR analysis showed that the expression levels of these three circRNAs were consistent with the sequencing results. In addition, the target miRNAs of circ_n/a_75 and circ_n/a_303, miR-339a, miR-2400 and miR-30c, were down-regulated in the experimental group, which was in contrast to the circRNAs trend. These findings demonstrated that BMP15 and GDF9 may regulate the target gene through circRNA, as a miRNA sponge, in order to regulate the status of bovine cumulus cells and affect follicular development.
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Samir N, Matboli M, El-Tayeb H, El-Tawdi A, Hassan MK, Waly A, El-Akkad HAE, Ramadan MG, Al-Belkini TN, El-Khamisy S, El-Asmar F. Competing endogenous RNA network crosstalk reveals novel molecular markers in colorectal cancer. J Cell Biochem 2018; 119:6869-6881. [PMID: 29737552 DOI: 10.1002/jcb.26884] [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] [Received: 12/29/2017] [Accepted: 03/21/2018] [Indexed: 01/09/2023]
Abstract
The competing endogenous RNA networks play a pivotal role in cancer diagnosis and progression. Novel properstrategies for early detection of colorectal cancer (CRC) are strongly needed. We investigated a novel CRC-specific RNA-based integrated competing endogenous network composed of lethal3 malignant brain tumor like1 (L3MBTL1) gene, long non-coding intergenic RNA- (lncRNA RP11-909B2.1) and homo sapiens microRNA-595 (hsa-miRNA-595) using in silico data analysis. RT-qPCR-based validation of the network was achieved in serum of 70 patients with CRC, 40 patients with benign colorectal neoplasm, and 20 healthy controls. Moreover, in cancer tissues of 20 of the 70 CRC cases were involved in the study. The expression of RNA-based biomarker network in both CRC and adjacent non-tumor tissues and their correlation with the serum levels of this network members was investigated. Lastly, the expression levels of the chosen ceRNA was verified in CRC cell line. Our results revealed that the three RNAs-based biomarker network (long non-coding intergenic RNA-[lncRNA RP11-909B2.1], Homo sapiens microRNA-595 [hsa-miRNA-595], and L3MBTL1 mRNA), had high sensitivity and specificity for discriminating CRC from healthy controls and also from benign colorectal neoplasm. The data suggest that among these three RNAs, serum lncRNA RP11-909B2.1 could be a promising independent prognostic factors in CRC. The circulatory RNA based biomarker panel can act as potential biomarker for CRC diagnosis and prognosis.
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Affiliation(s)
- Nehal Samir
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Ain Shams University, Abbassia, Cairo, Egypt
| | - Marwa Matboli
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Ain Shams University, Abbassia, Cairo, Egypt
| | - Hanaa El-Tayeb
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Ain Shams University, Abbassia, Cairo, Egypt
| | - Ahmed El-Tawdi
- Department of General Surgery, Military Medical Academy, Cairo, Egypt
| | - Mohmed K Hassan
- Center for Genomics, Helmy Institute, Zewail City for Science and Technology, Giza, Egypt.,Biotechnology Program, Department of Zoology, Port Said Faculty of Science, Port Said, Egypt
| | - Amr Waly
- Center for Genomics, Helmy Institute, Zewail City for Science and Technology, Giza, Egypt
| | - Hesham A E El-Akkad
- Department of General Surgery, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Mohamed G Ramadan
- Department of Oncology Surgery, National Cancer Institute, Giza, Egypt
| | | | - Sherif El-Khamisy
- Center for Genomics, Helmy Institute, Zewail City for Science and Technology, Giza, Egypt
| | - Farid El-Asmar
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Ain Shams University, Abbassia, Cairo, Egypt
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226
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CircRNF13 regulates the invasion and metastasis in lung adenocarcinoma by targeting miR-93-5p. Gene 2018; 671:170-177. [PMID: 29704631 DOI: 10.1016/j.gene.2018.04.069] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/01/2018] [Accepted: 04/24/2018] [Indexed: 01/21/2023]
Abstract
Circular RNAs (circRNAs) are a group of non-protein-coding RNAs that are generated from back-splicing. Recent evidence indicates that circRNAs play important roles in tissue development, gene regulation, and carcinogenesis. It was recently demonstrated that circular RNAs can function as sponges for miRNAs. In our study, the clinical implications of circRNF13 were assessed in 50 pathologically diagnosed lung adenocarcinoma samples and their paired peripheral normal lung tissues by using quantitative polymerase chain reaction. We validated that circRNF13 was almost 2.98-fold down-regulated in cancer tissues. The expression level of circRNF13 was significantly negatively correlated with TNM staging and lymph node metastasis. In vitro experiments indicated that circRNF13 repressed the invasion and metastasis of lung adenocarcinoma cell lines. Cell fraction analyses and fluorescence in situ hybridization detected that circRNF13 was mostly located in the cytoplasm. Bioinformatic analyses and RIP experiments revealed that circRNF13 could interact with Ago2, an RNA binding protein, and could function as sponge for miR-93-5p. Our data suggest that circRNF13 represents a potential novel biomarker and a therapeutic target of lung adenocarcinoma.
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227
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Cao Y, You S, Yao Y, Liu ZJ, Hazi W, Li CY, Zhang XY, Hou XX, Wei JC, Li XY, Wang DW, Chen CF, Zhang YF, Ni W, Hu SW. Expression profiles of circular RNAs in sheep skeletal muscle. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2018; 31:1550-1557. [PMID: 29642686 PMCID: PMC6127590 DOI: 10.5713/ajas.17.0563] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 03/13/2018] [Indexed: 12/20/2022]
Abstract
Objective Circular RNAs (circRNAs) are a newfound class of non-coding RNA in animals and plants. Recent studies have revealed that circRNAs play important roles in cell proliferation, differentiation, autophagy and apoptosis during development. However, there are few reports about muscle development-related circRNAs in livestock. Methods RNA sequencing analysis was employed to identify and annotate circRNAs from longissimus dorsi of sheep. Reverse transcription followed by real-time quantitative (q) polymerase chain reaction (PCR) analysis verified the presence of these circRNAs. Targetscan7.0 and miRanda were used to analyse the interaction of circRNA-microRNA (miRNA). To investigate the function of circRNAs, an experiment was conducted to perform enrichment analysis hosting genes of circRNAs using gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) pathways. Results About 75.5 million sequences were obtained from RNA libraries of sheep skeletal muscle. These sequences were mapped to 729 genes in the sheep reference genome. We identified 886 circRNAs, including numerous circular intronic RNAs and exonic circRNAs. Reverse transcription PCR (RT-PCR) and DNA sequencing analysis confirmed the presence of several circRNAs. Real-Time RT-PCR analysis exhibited resistance of sheep circRNAs to RNase R digestion. We found that many circRNAs interacted with muscle-specific miRNAs involved in growth and development of muscle, especially circ776. The GO and KEGG enrichment analysis showed that hosting genes of circRNAs was involved in muscle cell development and signaling pathway. Conclusion The study provides comprehensive expression profiles of circRNAs in sheep skeletal muscle. Our study offers a large number of circRNAs to facilitate a better understanding of their roles in muscle growth. Meanwhile, we suggested that circ776 could be analyzed in future study.
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Affiliation(s)
- Yang Cao
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Shuang You
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Yang Yao
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Zhi-Jin Liu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Wureli Hazi
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Cun-Yuan Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Xiang-Yu Zhang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Xiao-Xu Hou
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Jun-Chang Wei
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Xiao-Yue Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Da-Wei Wang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Chuang-Fu Chen
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Yun-Feng Zhang
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Wei Ni
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
| | - Sheng-Wei Hu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang 832003, China
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228
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Hu WL, Jin L, Xu A, Wang YF, Thorne RF, Zhang XD, Wu M. GUARDIN is a p53-responsive long non-coding RNA that is essential for genomic stability. Nat Cell Biol 2018; 20:492-502. [DOI: 10.1038/s41556-018-0066-7] [Citation(s) in RCA: 210] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 02/15/2018] [Indexed: 12/11/2022]
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229
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Yan Y, Fan Q, Wang L, Zhou Y, Li J, Zhou K. LncRNA Snhg1, a non-degradable sponge for miR-338, promotes expression of proto-oncogene CST3 in primary esophageal cancer cells. Oncotarget 2018; 8:35750-35760. [PMID: 28423738 PMCID: PMC5482614 DOI: 10.18632/oncotarget.16189] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 02/21/2017] [Indexed: 02/03/2023] Open
Abstract
Competing endogenous RNA (ceRNA) is a newly proposed mechanism that describes a crosstalk among lncRNAs, mRNAs and their shared miRNAs. In this study, the role of miR-338-3p (miR-338) in the progression of esophageal cancer and its involve in the ceRNA regulatory circuit lncRNA-Snhg1/CST3 were explored. MiR-338 displayed a 30% decreased expression in esophageal squamous cell carcinoma tissues compared with the adjacent. Then, proto-oncogene CST3 was predicted and validated as a target gene of miR-338. Gain-and-loss-function experiments indicated that miR-338 suppressed expression of CST3 protein (also Cystatin C, CysC), promoted expression of apoptotic proteins caspase-8/3, attenuated esophageal carcinoma cell growth and induced its apoptosis. In addition, lncRNA-Snhg1 was significantly upregulated in esophageal carcinoma tissues and promoted esophageal carcinoma cell growth. Furthermore, our results from bioinformatics, luciferase reporter gene and RNA pull-down assays indicated that Snhg1 could be directly bound by miR-338. Snhg1 acted as a non-degradable sponge to relieve the suppression on CST3 caused by miR-338. In conclusion, lncRNA-Snhg1 promoted cell proliferation by acting as a non-degradable sponge for the tumor suppressor miR-338 in esophageal cancer cells.
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Affiliation(s)
- Yan Yan
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qingxia Fan
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Liping Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yue Zhou
- Department of Medical Imaging, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jianhua Li
- Department of General Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Kun Zhou
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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230
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Long non-coding RNAs regulating macrophage functions in homeostasis and disease. Vascul Pharmacol 2018; 114:122-130. [PMID: 29548902 DOI: 10.1016/j.vph.2018.02.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 02/09/2018] [Accepted: 02/26/2018] [Indexed: 12/29/2022]
Abstract
Non-coding RNAs, once considered "genomic junk", are now known to play central roles in the dynamic control of transcriptional and post-transcriptional gene expression. Long non-coding RNAs (lncRNAs) are an expansive class of transcripts broadly described as greater than 200 nucleotides in length. While most lncRNAs are species-specific, their lack of conservation does not imbue a lack of function. LncRNAs have been found to regulate numerous diverse biological functions, including those central to macrophage differentiation and activation. Through their ability to form RNA-DNA, RNA-protein and RNA-RNA interactions, lncRNAs have been implicated in the regulation of myeloid lineage determination, and innate and adaptive immune functions, among others. In this review, we discuss recent advances, current challenges and future opportunities in understanding the roles of lncRNAs in macrophage functions in homeostasis and disease.
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231
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Zhu Z, Li Y, Liu W, He J, Zhang L, Li H, Li P, Lv L. Comprehensive circRNA expression profile and construction of circRNA-associated ceRNA network in fur skin. Exp Dermatol 2018; 27:251-257. [DOI: 10.1111/exd.13502] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2018] [Indexed: 01/01/2023]
Affiliation(s)
- Zhiwei Zhu
- College of Life Sciences; Shanxi Agricultural University; Taigu China
| | - Yuan Li
- College of Life Sciences; Shanxi Agricultural University; Taigu China
| | - Wenyan Liu
- College of Life Sciences; Shanxi Agricultural University; Taigu China
| | - Junping He
- College of Animal Science and Technology; Shanxi Agricultural University; Taigu China
| | - Lihuan Zhang
- College of Life Sciences; Shanxi Agricultural University; Taigu China
| | - Huifeng Li
- College of Life Sciences; Shanxi Agricultural University; Taigu China
| | - Pengfei Li
- College of Life Sciences; Shanxi Agricultural University; Taigu China
| | - Lihua Lv
- College of Animal Science and Technology; Shanxi Agricultural University; Taigu China
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232
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Deregulation of miR-183 promotes melanoma development via lncRNA MALAT1 regulation and ITGB1 signal activation. Oncotarget 2018; 8:3509-3518. [PMID: 27966454 PMCID: PMC5356899 DOI: 10.18632/oncotarget.13862] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 11/22/2016] [Indexed: 01/17/2023] Open
Abstract
Dysregulation of miR-183 has been recently elucidated in several carcinomas. However, the expression patterns and mechanisms of miR-183 involved in malignant melanoma remain unidentified. Here, we found down-regulation of miR-183 in melanoma tissues and cells. Decreased level of miR-183 was relevant to poor overall survival, while miR-183 up-regulation resulted in a marked suppression of cell growth in vitro and in vivo. We further found that the expression and function of miR-183 were suppressed by MALAT1. Integrin β1 (ITGB1) was then speculated and confirmed as a direct target of miR-183. We also illustrated that MALAT1 may function as a sponge competitive endogenous RNA (ceRNA) for miR-183, and thus regulate the molecular expression of ITGB1. Collectively, we found a new signaling pathway promoting melanoma development by MALAT1-miR-183-ITGB1 axis, which may be clinically valuable as new targets for malignant melanoma therapy.
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233
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Wu J, Zhao J, Sun L, Pan Y, Wang H, Zhang WB. Long non-coding RNA H19 mediates mechanical tension-induced osteogenesis of bone marrow mesenchymal stem cells via FAK by sponging miR-138. Bone 2018; 108:62-70. [PMID: 29253550 DOI: 10.1016/j.bone.2017.12.013] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Revised: 12/12/2017] [Accepted: 12/14/2017] [Indexed: 01/05/2023]
Abstract
Bone marrow mesenchymal stem cells (BMMSCs) provide the biological basis for bone reconstruction. Mechanical tension stimulation as a potent modulator is able to promote osteogenic capability of BMMSCs. Long non-coding RNAs (LncRNAs) as competing endogenous RNAs (ceRNAs) for microRNAs, are postulated to regulate the osteogenic differentiation of stem cells. However, the mechanism how (whether) lncRNAs mediates tension-induced osteogenesis of BMSCs still remains poor understood. Here, human BMMSCs (hBMMSCs) were subjected to mechanical tension (10%, 0.5Hz). Results showed that mechanical tension could enhance osteogenic differentiation and increase H19 expression. H19 deficiency suppressed tension-induced osteogenic differentiation, demonstrating that H19 could mediate tension-induced osteogenesis in hBMMSCs. Besides, mechanical tension could suppress miR-138 expression, and down-regulated miR-138 promoted tension-induced osteogenesis in hBMMSCs. Luciferase reporter assays illustrated that H19 had binding sites with miR-138, and H19 deficiency increased miR-138 level, demonstrating that H19 may act as a ceRNA for miR-138 in hBMMSCs. Luciferase reporter assays also showed that miR-138 could target PTK2,a gene encoding focal adhesion kinase (FAK). Up-regulated miR-138 impaired increased FAK expression induced by mechanical tension. The relationship among H19, miR-138 and FAK under tension condition was further studied. H19 deficiency inhibited FAK expression, which could be partly rescued by knock-downing miR-138. In addition, suppressed tension-induced osteogenic differentiation in H19 defective cells was partly rescued by miR-138 knockdown. Taken together, this study indicated that H19 is a positive regulator in tension-induced osteogenesis of hBMMSCs through acting as a ceRNA for miR-138 and then up-regulating downstream FAK.
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Affiliation(s)
- Jiajing Wu
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China; Hangzhou West Dental Hospital, Hangzhou, China
| | - Jing Zhao
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Lian Sun
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
| | - Yongchu Pan
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China; Department of Orthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China
| | - Hua Wang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China; Department of Orthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.
| | - Wei-Bing Zhang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China; Department of Orthodontics, Affiliated Hospital of Stomatology, Nanjing Medical University, Nanjing, China.
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234
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Fernández-Pérez D, Brieño-Enríquez MA, Isoler-Alcaraz J, Larriba E, Del Mazo J. MicroRNA dynamics at the onset of primordial germ and somatic cell sex differentiation during mouse embryonic gonad development. RNA (NEW YORK, N.Y.) 2018; 24:287-303. [PMID: 29187591 PMCID: PMC5824349 DOI: 10.1261/rna.062869.117] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 11/27/2017] [Indexed: 06/07/2023]
Abstract
In mammals, commitment and specification of germ cell lines involves complex programs that include sex differentiation, control of proliferation, and meiotic initiation. Regulation of these processes is genetically controlled by fine-tuned mechanisms of gene regulation in which microRNAs (miRNAs) are involved. We have characterized, by small-RNA-seq and bioinformatics analyses, the miRNA expression patterns of male and female mouse primordial germ cells (PGCs) and gonadal somatic cells at embryonic stages E11.5, E12.5, and E13.5. Differential expression analyses revealed differences in the regulation of key miRNA clusters such as miR-199-214, miR-182-183-96, and miR-34c-5p, whose targets have defined roles during gonadal sexual determination in both germ and somatic cells. Extensive analyses of miRNA sequences revealed an increase in noncanonical isoforms on PGCs at E12.5 and dramatic changes of 3' isomiR expression and 3' nontemplate nucleotide additions in female PGCs at E13.5. Additionally, RT-qPCR analyses of genes encoding proteins involved in miRNA biogenesis and 3' nucleotide addition uncovered sexually and developmentally specific expression, characterized by the decay of Drosha, Dgcr8, and Xpo5 expression along gonadal development. These results demonstrate that miRNAs, their isomiRs, and miRNA machinery are differentially regulated and participate actively in gonadal sexual differentiation in both PGCs and gonadal somatic cells.
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Affiliation(s)
- Daniel Fernández-Pérez
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas (CSIC), Madrid 28040, Spain
| | - Miguel A Brieño-Enríquez
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas (CSIC), Madrid 28040, Spain
| | - Javier Isoler-Alcaraz
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas (CSIC), Madrid 28040, Spain
| | - Eduardo Larriba
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas (CSIC), Madrid 28040, Spain
| | - Jesús Del Mazo
- Department of Cellular and Molecular Biology, Centro de Investigaciones Biológicas (CSIC), Madrid 28040, Spain
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235
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Kong Q, Zhang S, Liang C, Zhang Y, Kong Q, Chen S, Qin J, Jin Y. Retracted:
LncRNA XIST functions as a molecular sponge of miR‐194‐5p to regulate MAPK1 expression in hepatocellular carcinoma cell. J Cell Biochem 2018; 119:4458-4468. [DOI: 10.1002/jcb.26540] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 12/05/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Qinglei Kong
- Department of Emergency MedicineThe Third Affiliated HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Shaoquan Zhang
- Department of Infectious DiseasesThe Third Affiliated HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Caiqian Liang
- Department of Emergency MedicineThe Third Affiliated HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Ying Zhang
- Department of Infectious DiseasesThe Third Affiliated HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Qingcong Kong
- Department of RadiologyThe Third Affiliated HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Shuxian Chen
- Department of Hepatobiliary SurgeryThe Third Affiliated HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Jie Qin
- Department of RadiologyThe Third Affiliated HospitalSun Yat‐Sen UniversityGuangzhouChina
| | - Yi Jin
- Department of PathologyGuangdong Provincial Key Laboratory of Liver Disease ResearchThe Third Affiliated HospitalSun Yat‐Sen UniversityGuangzhouChina
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236
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Lu Q, Shan S, Li Y, Zhu D, Jin W, Ren T. Long noncoding RNA SNHG1 promotes non-small cell lung cancer progression by up-regulating MTDH via sponging miR-145-5p. FASEB J 2018; 32:3957-3967. [PMID: 29466052 DOI: 10.1096/fj.201701237rr] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Long noncoding RNAs participate in the progression and initiation of non-small cell lung cancer (NSCLC), although the mechanism remains unknown. The lncRNA identified as small nucleolar RNA host gene 1 ( SNHG1) is a novel lncRNA that is increased in multiple human cancers; however, the regulatory mechanism requires further investigation. In this study, we discovered that SNHG1 was markedly up-regulated in NSCLC tissues and cells and that SNHG1 silencing decreased tumor volumes. Moreover, we explored its regulatory mechanism and found that SNHG1 directly bound to microRNA (miRNA)-145-5p, isolating miR-145-5p from its target gene MTDH. Inhibition of SNHG1 suppressed NSCLC cell viability, proliferation, migration, and invasion in vitro, but its effect was rescued by miR-145-5p inhibition. These results demonstrate that SNHG1 contributes to NSCLC progression by modulating the miR-145-5p/ MTDH axis, and it could potentially be a therapeutic target as well as a diagnostic marker.-Lu, Q., Shan, S., Li, Y., Zhu, D., Jin, W., Ren, T. Long noncoding RNA SNHG1 promotes non-small cell lung cancer progression by up-regulating MTDH via sponging miR-145-5p.
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Affiliation(s)
- Qingchun Lu
- Department of Respiratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shan Shan
- Department of Respiratory Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yanyan Li
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Dongyi Zhu
- Department of Respiratory Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wenjing Jin
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China; and.,Department of Intensive Care Unit, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
| | - Tao Ren
- Department of Respiratory Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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237
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Li B, Mao R, Liu C, Zhang W, Tang Y, Guo Z. LncRNA FAL1 promotes cell proliferation and migration by acting as a CeRNA of miR-1236 in hepatocellular carcinoma cells. Life Sci 2018; 197:122-129. [PMID: 29421439 DOI: 10.1016/j.lfs.2018.02.006] [Citation(s) in RCA: 167] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 02/02/2018] [Accepted: 02/04/2018] [Indexed: 12/19/2022]
Abstract
BACKGROUND Long non-coding RNAs (LncRNAs) have been demonstrated to play crucial role in tumor growth and metastasis for hepatocellular carcinoma (HCC). LncRNA FAL1 has been indicated to promote the progression of various cancers. However, the role of lncRNA FAL1 in HCC was poorly understood. METHODS The expression levels of lncRNA FAL1 in HCC tissues and cells were determined by RT-qPCR. The roles of lncRNA FAL1 on HCC cells were investigated by MTT, colony formation, transwell, RT-qPCR, and Western blotting. The miRNA binding sites of lncRNA FAL1 was predicted using RegRNA 2.0 and miR-1236 was validated to target lncRNA FAL1 by luciferase reporter assays and RT-qPCR. Finally, the expression levels of lncRNA FAL1 in serum exosome of HCC patients was also investigated and the role of exosome-mediated lncRNA FAL1 was further investigated by co-culturing with HCC cells. RESULTS This study first showed that lncRNA FAL1 was up-regulated in HCC tissues and functioned as an oncogene in HCC. LncRNA FAL1 could accelerate cell proliferation and metastasis as a ceRNA mechanism by competitively binding to miR-1236. Moreover, lncRNA FAL1 was also up-regulated in serum exosome of HCC patients and could transfer lncRNA FAL1 to HCC cells to increase their abilities of cell proliferation and migration. CONCLUSIONS Taken together, this study indicated that lncRNA FAL1 functions as an oncogenic in HCC and may be a novel diagnostic biomarker or a novel target for the treatment of HCC in future.
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Affiliation(s)
- Baoguo Li
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital, Chinese National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China.
| | - Rui Mao
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital, Chinese National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Changfu Liu
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital, Chinese National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Weihao Zhang
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital, Chinese National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Yong Tang
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital, Chinese National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
| | - Zhi Guo
- Department of Interventional Therapy, Tianjin Medical University Cancer Institute and Hospital, Chinese National Clinical Research Center of Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China.
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Shin CH, Ryu S, Kim HH. hnRNPK-regulated PTOV1-AS1 modulates heme oxygenase-1 expression via miR-1207-5p. BMB Rep 2018; 50:220-225. [PMID: 28228215 PMCID: PMC5437967 DOI: 10.5483/bmbrep.2017.50.4.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Indexed: 11/20/2022] Open
Abstract
Antisense transcripts were initially identified as transcriptional noise, but have since been reported to play an important role in the quality control of miRNA functions. In this report, we tested the hypothesis that heterogeneous nuclear ribonucleoprotein K (hnRNPK) regulates miRNA function via competitive endogenous RNAs, such as pseudogenes, long non-coding RNAs, and antisense transcripts. Based on analyses of RNA sequencing data, the knockdown of hnRNPK decreased the antisense PTOV1-AS1 transcript which harbors five binding sites for miR-1207-5p. We identified heme oxygenase-1 (HO-1) mRNA as a novel target of miR-1207-5p by western blotting and Ago2 immunoprecipitation. The knockdown of hnRNPK or PTOV1-AS1 suppressed HO-1 expression by increasing the enrichment of HO-1 mRNA in miR-1207-5p-mediated miRISC. Downregulation of HO-1 by a miR-1207-5p mimic or knockdown of hnRNPK and PTOV1-AS1 inhibited the proliferation and clonogenic ability of HeLa cells. Taken together, our results demonstrate that hnRNPKregulated PTOV1-AS1 modulates HO-1 expression via miR- 1207-5p. [BMB Reports 2017; 50(4): 220-225].
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Affiliation(s)
- Chang Hoon Shin
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Korea
| | - Seongho Ryu
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan 31151, Korea
| | - Hyeon Ho Kim
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul 06351, Korea; Institute for Future Medicine, Samsung Medical Center, Seoul 06351, Korea
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239
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Zaporozhchenko IA, Ponomaryova AA, Rykova EY, Laktionov PP. The potential of circulating cell-free RNA as a cancer biomarker: challenges and opportunities. Expert Rev Mol Diagn 2018; 18:133-145. [DOI: 10.1080/14737159.2018.1425143] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ivan A. Zaporozhchenko
- Laboratory of Molecular Medicine, Institute of Chemical Biology and Fundamental Medicine of SB RAS, Novosibirsk, Russia
- Laboratory of Biomedical Technologies, Centre of New Surgical Technologies, E.N. Meshalkin Siberian Federal Biomedical Research Center, Novosibirsk, Russia
| | - Anastasia A. Ponomaryova
- Laboratory of Immunology, Tomsk Cancer Research Institute of SB RAMS, Tomsk, Russia
- Department of Applied Physics, National Research Tomsk Polytechnic University, Tomsk, Russia
| | - Elena Yu Rykova
- Laboratory of Molecular Medicine, Institute of Chemical Biology and Fundamental Medicine of SB RAS, Novosibirsk, Russia
- Laboratory of Biomedical Technologies, Centre of New Surgical Technologies, E.N. Meshalkin Siberian Federal Biomedical Research Center, Novosibirsk, Russia
| | - Pavel P. Laktionov
- Laboratory of Molecular Medicine, Institute of Chemical Biology and Fundamental Medicine of SB RAS, Novosibirsk, Russia
- Laboratory of Biomedical Technologies, Centre of New Surgical Technologies, E.N. Meshalkin Siberian Federal Biomedical Research Center, Novosibirsk, Russia
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240
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Filippenkov IB, Kolomin TA, Limborska SA, Dergunova LV. Developmental stage-specific expression of genes for sphingomyelin synthase in rat brain. Cell Tissue Res 2018; 372:33-40. [PMID: 29294205 DOI: 10.1007/s00441-017-2762-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 12/01/2017] [Indexed: 10/18/2022]
Abstract
Sphingomyelin synthase genes (Sgms1 and Sgms2) encode the vital enzymes that participate in the processes of membrane transport, cell proliferation and apoptosis. We previously determined the exon-intron structure of Sgms1 and some features of its expression in human and rodent tissues. The circular RNAs (circRNAs) emerging from exons of the 5'-untranslated region (5'-UTR) of Sgms1 were determined. These circRNAs are represented at a high level in the adult brain. Here, we demonstrate that, in contrast to Sgms1, Sgms2 does not contain the multi-exon 5'-UTR but encodes circRNAs, which are composed of the coding region of the gene and are expressed at a low level. We present a study of the expression of sphingomyelin synthase genes in rat brain at embryonic days 7, 9, 13, 17 and 21 and in adult rat brain. In contrast to Sgms1, Sgms2 is expressed at a significantly low level in adult brain. In embryonic rat brain, the mRNA expression of sphingomyelin synthase genes is varied in a developmental stage-specific manner. The level of Sgms1 mRNAs, differing by 5'-UTR-in the formation of which alternative promoters can participate-changes significantly during the process of embryonic development. The expression of circRNAs of Sgms1 was significantly raised during rat embryonic brain development. We assume that the circRNAs are involved in the regulation of sphingomyelin synthase activity in rat brain in different developmental stages.
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Affiliation(s)
- Ivan B Filippenkov
- Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, 123182, Russia.
| | - Timur A Kolomin
- Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, 123182, Russia
| | - Svetlana A Limborska
- Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, 123182, Russia.,Pirogov Russian National Research Medical University, Moscow, 117997, Russia
| | - Lyudmila V Dergunova
- Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, 123182, Russia.,Pirogov Russian National Research Medical University, Moscow, 117997, Russia
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241
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O'Brien J, Hayder H, Zayed Y, Peng C. Overview of MicroRNA Biogenesis, Mechanisms of Actions, and Circulation. Front Endocrinol (Lausanne) 2018; 9:402. [PMID: 30123182 PMCID: PMC6085463 DOI: 10.3389/fendo.2018.00402] [Citation(s) in RCA: 2772] [Impact Index Per Article: 462.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 06/28/2018] [Indexed: 02/06/2023] Open
Abstract
MicroRNAs (miRNAs) are a class of non-coding RNAs that play important roles in regulating gene expression. The majority of miRNAs are transcribed from DNA sequences into primary miRNAs and processed into precursor miRNAs, and finally mature miRNAs. In most cases, miRNAs interact with the 3' untranslated region (3' UTR) of target mRNAs to induce mRNA degradation and translational repression. However, interaction of miRNAs with other regions, including the 5' UTR, coding sequence, and gene promoters, have also been reported. Under certain conditions, miRNAs can also activate translation or regulate transcription. The interaction of miRNAs with their target genes is dynamic and dependent on many factors, such as subcellular location of miRNAs, the abundancy of miRNAs and target mRNAs, and the affinity of miRNA-mRNA interactions. miRNAs can be secreted into extracellular fluids and transported to target cells via vesicles, such as exosomes, or by binding to proteins, including Argonautes. Extracellular miRNAs function as chemical messengers to mediate cell-cell communication. In this review, we provide an update on canonical and non-canonical miRNA biogenesis pathways and various mechanisms underlying miRNA-mediated gene regulations. We also summarize the current knowledge of the dynamics of miRNA action and of the secretion, transfer, and uptake of extracellular miRNAs.
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242
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Abstract
MicroRNAs (miRNAs) are a class of non-coding RNAs that play important roles in regulating gene expression. The majority of miRNAs are transcribed from DNA sequences into primary miRNAs and processed into precursor miRNAs, and finally mature miRNAs. In most cases, miRNAs interact with the 3' untranslated region (3' UTR) of target mRNAs to induce mRNA degradation and translational repression. However, interaction of miRNAs with other regions, including the 5' UTR, coding sequence, and gene promoters, have also been reported. Under certain conditions, miRNAs can also activate translation or regulate transcription. The interaction of miRNAs with their target genes is dynamic and dependent on many factors, such as subcellular location of miRNAs, the abundancy of miRNAs and target mRNAs, and the affinity of miRNA-mRNA interactions. miRNAs can be secreted into extracellular fluids and transported to target cells via vesicles, such as exosomes, or by binding to proteins, including Argonautes. Extracellular miRNAs function as chemical messengers to mediate cell-cell communication. In this review, we provide an update on canonical and non-canonical miRNA biogenesis pathways and various mechanisms underlying miRNA-mediated gene regulations. We also summarize the current knowledge of the dynamics of miRNA action and of the secretion, transfer, and uptake of extracellular miRNAs.
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Affiliation(s)
- Jacob O'Brien
- Department of Biology, York University, Toronto, ON, Canada
| | - Heyam Hayder
- Department of Biology, York University, Toronto, ON, Canada
| | - Yara Zayed
- Department of Biology, York University, Toronto, ON, Canada
| | - Chun Peng
- Department of Biology, York University, Toronto, ON, Canada
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243
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PIK3C2A mRNA functions as a miR-124 sponge to facilitate CD151 expression and enhance malignancy of hepatocellular carcinoma cells. Oncotarget 2017; 7:43376-43389. [PMID: 27270320 PMCID: PMC5190030 DOI: 10.18632/oncotarget.9716] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 05/09/2016] [Indexed: 01/17/2023] Open
Abstract
Competing endogenous RNAs (ceRNAs) are RNA transcripts that can crosstalk with each other by competing for shared microRNAs (miRNAs) through miRNA response elements (MREs). Involved in ceRNA networks, the RNA transcripts may be in a balance, disruption of which could lead to tumorigenesis. Here we reveal a ceRNA interaction between PIK3C2A and CD151 mRNAs in hepatocellular carcinoma (HCC) cells. PIK3C2A is a candidate ceRNA of CD151 because mRNA 3' untranslated regions (3'UTRs) of these two genes contain miR-124 binding sites. miR-124 is downregulated, while PIK3C2A and CD151 are upregulated in HCC cells compared with normal hepatocytes. Direct and negative regulation of PIK3C2A and CD151 by miR-124 was confirmed in HCC cells. miR-124 and the two potential ceRNAs are all recruited to the RNA-induced silencing complex (RISC). In HCC cell lines QGY- 7703 and SMMC-7721, and normal hepatic cell line HL-7702, miR-124 plays a tumor suppressor role by targeting PIK3C2A and CD151. The MREs within PIK3C2A 3'UTR can independently stimulate CD151 expression level by acting as miR-124 decoys. PIK3C2A MREs enhance HCC cell malignancy by absorbing endogenous miR-124 and activating CD151 in HCC cells. We conclude that PIK3C2A 3'UTR functions as a trans activator to stimulate CD151 by competing for miR-124 binding in HCC cells. The collaboration of PIK3C2A and CD151 through ceRNA mechanism may be implicated in HCC initiation and development.
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244
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Li C, Li X, Ma Q, Zhang X, Cao Y, Yao Y, You S, Wang D, Quan R, Hou X, Liu Z, Zhan Q, Liu L, Zhang M, Yu S, Ni W, Hu S. Genome-wide analysis of circular RNAs in prenatal and postnatal pituitary glands of sheep. Sci Rep 2017; 7:16143. [PMID: 29170496 PMCID: PMC5700919 DOI: 10.1038/s41598-017-16344-y] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 11/10/2017] [Indexed: 12/11/2022] Open
Abstract
Circular RNAs (circRNAs) are a class of animal non-coding RNAs and play an impor-tant role in animal growth and development. However, the expression and function of circRNAs in the pituitary gland of sheep are unclear. Transcriptome profiling of circRNAs in the pituitary gland of sheep may enable us to understand their biological functions. In the present study, we identified 10,226 circRNAs from RNA-seq data in the pituitary gland of prenatal and postnatal sheep. Reverse transcription PCR and DNA sequencing analysis confirmed the presence of several circRNAs. Real-time RT-PCR analysis showed that sheep circRNAs are resistant to RNase R digestion and are expressed in prenatal and postnatal pituitary glands. GO and KEGG enrichment analysis showed that host genes of differentially expressed circRNAs are involved in the regulation of hormone secretion as well as in several pathways related to these processes. We determined that numerous circRNAs interact with pituitary-specific miRNAs that are involved in the biologic functions of the pituitary gland. Moreover, several circRNAs contain at least one IRES element and open reading frame, indicating their potential to encode proteins. Our study provides comprehensive expression profiles of circRNAs in the pituitary gland, thereby offering a valuable resource for circRNA biology in sheep.
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Affiliation(s)
- Cunyuan Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Xiaoyue Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Qiman Ma
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Xiangyu Zhang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Yang Cao
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Yang Yao
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Shuang You
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Dawei Wang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Renzhe Quan
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Xiaoxu Hou
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Zhijin Liu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Qianqian Zhan
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Li Liu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Mengdan Zhang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Shuting Yu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Wei Ni
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
| | - Shengwei Hu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China.
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Li C, Li X, Yao Y, Ma Q, Ni W, Zhang X, Cao Y, Hazi W, Wang D, Quan R, Hou X, Liu Z, Zhan Q, Liu L, Zhang M, Yu S, Hu S. Genome-wide analysis of circular RNAs in prenatal and postnatal muscle of sheep. Oncotarget 2017; 8:97165-97177. [PMID: 29228601 PMCID: PMC5722553 DOI: 10.18632/oncotarget.21835] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 09/23/2017] [Indexed: 01/01/2023] Open
Abstract
Circular RNAs (circRNAs), a type of non-coding RNA with circular structure, were generated by back splicing and widely expressed in animals and plants. Recent studies have shown that circRNAs extensively participate in cell proliferation, cell differentiation, cell autophagy and other biological processes. However, the role and expression of circRNAs in the development and growth of muscle have not been studied in sheep. In our study, we first used RNA-seq to study the circRNAs in prenatal and postnatal longissimus dorsi muscle of sheep. A total of 6113 circRNAs were detected from the RNA-seq data. Several circRNAs were identified using reverse transcription PCR, DNA sequencing and RNase R digestion experiments. The expression levels of several circRNAs in prenatal and postnatal muscle were confirmed by Real-Time RT-PCR. The gene ontology (GO) and KEGG enrichment analysis of the host gene of the circRNAs showed that these circRNAs were mainly involved in the growth and development of muscle related signaling pathways. These circRNAs might sponge microRNAs (miRNAs) in predicted circRNA-miRNA-mRNA networks. The circRNAs expression profiles in muscle provided an important reference for the study of circRNAs in sheep.
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Affiliation(s)
- Cunyuan Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Xiaoyue Li
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Yang Yao
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Qiman Ma
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Wei Ni
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Xiangyu Zhang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Yang Cao
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Wureli Hazi
- College of Animal Science and Technology, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Dawei Wang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Renzhe Quan
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Xiaoxu Hou
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Zhijin Liu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Qianqian Zhan
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Li Liu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Mengdan Zhang
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Shuting Yu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
| | - Shengwei Hu
- College of Life Sciences, Shihezi University, Shihezi, Xinjiang, 832003, China
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246
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Regulation of HOXA11-AS/miR-214-3p/EZH2 axis on the growth, migration and invasion of glioma cells. Biomed Pharmacother 2017; 95:1504-1513. [DOI: 10.1016/j.biopha.2017.08.097] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 08/08/2017] [Accepted: 08/23/2017] [Indexed: 01/02/2023] Open
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247
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Gu Y, Xiao X, Yang S. LncRNA MALAT1 acts as an oncogene in multiple myeloma through sponging miR-509-5p to modulate FOXP1 expression. Oncotarget 2017; 8:101984-101993. [PMID: 29254219 PMCID: PMC5731929 DOI: 10.18632/oncotarget.21957] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 09/21/2017] [Indexed: 12/16/2022] Open
Abstract
Previous studies showed that Metastasis associated lung adenocarcinoma transcript 1(MALAT1) acted as an oncogene in Multiple Myeloma (MM). However, the underlying mechanism of MALAT1 in MM remains unclear. Quantitative real time-PCR(qRT-PCR) was used to determine MALAT1 expression in MM samples and cell lines. in vitro function assays were used to determine the function of MALAT1 on MM cells. Bioinformatics tools were used to predict the targets of MALAT1 and miR-509-5p, respectively. Furthermore, rescue experiments were performed to further confirm the regulation of miR-509-5p by MALAT1. In the present study, our data showed that MALAT1 expression was upregulated in MM samples and cell lines. In function assays, we confirmed that MALAT1 inhibition significantly suppressed cells proliferation, induced cells apoptosis, arrested cells in G1/S phase, and inhibited MM cells growth in vivo. Furthermore, MALAT1 was identified to function as a competitive endogenous RNA (ceRNA) for miR-509-5p to promote MM cell viability. Additionally, our results suggested that miR-509-5p targeted the 3’-UTR of FOXP1 to suppress MM cells progression. Meanwhile, our results showed that miR-509-5p inhibitors significantly abrogated the decreased expression of FOXP1 induced by MALAT1 suppression, indicating that MALAT1 could positively regulate FOXP1 expression by sponging miR-509-5p. Our findings suggested that MALAT1/miR-509-5p/FOXP1 axis was one of the key signalings in mediating MM cell growth, and further indicated that MALAT1 could act as a novel diagnostic marker and therapeutic target for the treatment of MM.
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Affiliation(s)
- Yueli Gu
- Department of Hematology, The First People's Hospital of Shangqiu, Shangqiu 476100, China
| | - Xichun Xiao
- Department of Hematology, The First People's Hospital of Shangqiu, Shangqiu 476100, China
| | - Shuo Yang
- Department of Hematology, The First People's Hospital of Shangqiu, Shangqiu 476100, China
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248
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Du Y, Weng XD, Wang L, Liu XH, Zhu HC, Guo J, Ning JZ, Xiao CC. LncRNA XIST acts as a tumor suppressor in prostate cancer through sponging miR-23a to modulate RKIP expression. Oncotarget 2017; 8:94358-94370. [PMID: 29212233 PMCID: PMC5706879 DOI: 10.18632/oncotarget.21719] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/27/2017] [Indexed: 01/04/2023] Open
Abstract
Accumulating evidences have indicated that aberrant expression of long non-coding RNAs (LncRNAs) is tightly associated with cancer development. Previous studies have reported that lncRNA XIST regulates tumor malignancies in several cancers. However, the underlying mechanism of XIST in prostate cancer remains unclear. In the current study, we found that XIST was down-regulated in prostate cancer specimens and cell lines. Low expression of XIST was correlated with poor prognosis and advanced tumor stage in prostate cancer patients. In gain and loss of function assays, we confirmed that XIST suppressed cellular proliferation and metastasis in prostate cancer both in vitro and in vivo. Furthermore, we found that XIST negatively regulates the expression of miR-23a and subsequently promotes RKIP expression at post-transcriptional level. Consequently, we investigated the correlation between XIST and miR-23a, and identified miR-23a as a direct target of XIST. In addition, over-expression of miR-23a efficiently abrogated the up-regulation of RKIP induced by XIST, suggesting that XIST positively regulates the expression of RKIP by competitively binding to miR-23a. Taken together, our study indicated that lncRNA XIST acts as a tumor suppressor in prostate cancer, and this regulatory effect of XIST will shed new light on epigenetic diagnostics and therapeutics in prostate cancer.
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Affiliation(s)
- Yang Du
- Department of Urology, Ren'min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Xiao-Dong Weng
- Department of Urology, Ren'min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Lei Wang
- Department of Urology, Ren'min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Xiu-Heng Liu
- Department of Urology, Ren'min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Heng-Cheng Zhu
- Department of Urology, Ren'min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Jia Guo
- Department of Urology, Ren'min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Jin-Zhuo Ning
- Department of Urology, Ren'min Hospital of Wuhan University, Wuhan, Hubei 430000, China
| | - Cheng-Cheng Xiao
- Department of Urology, Ren'min Hospital of Wuhan University, Wuhan, Hubei 430000, China
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249
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Cho J, Paszkowski J. Regulation of rice root development by a retrotransposon acting as a microRNA sponge. eLife 2017; 6:e30038. [PMID: 28847366 PMCID: PMC5599236 DOI: 10.7554/elife.30038] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/21/2017] [Indexed: 12/19/2022] Open
Abstract
It is well documented that transposable elements (TEs) can regulate the expression of neighbouring genes. However, their ability to act in trans and influence ectopic loci has been reported rarely. We searched in rice transcriptomes for tissue-specific expression of TEs and found them to be regulated developmentally. They often shared sequence homology with co-expressed genes and contained potential microRNA-binding sites, which suggested possible contributions to gene regulation. In fact, we have identified a retrotransposon that is highly transcribed in roots and whose spliced transcript constitutes a target mimic for miR171. miR171 destabilizes mRNAs encoding the root-specific family of SCARECROW-Like transcription factors. We demonstrate that retrotransposon-derived transcripts act as decoys for miR171, triggering its degradation and thus results in the root-specific accumulation of SCARECROW-Like mRNAs. Such transposon-mediated post-transcriptional control of miR171 levels is conserved in diverse rice species.
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Affiliation(s)
- Jungnam Cho
- The Sainsbury Laboratory, University of CambridgeCambridgeUnited Kingdom
| | - Jerzy Paszkowski
- The Sainsbury Laboratory, University of CambridgeCambridgeUnited Kingdom
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Cho J, Paszkowski J. Regulation of rice root development by a retrotransposon acting as a microRNA sponge. eLife 2017; 6:30038. [PMID: 28847366 DOI: 10.7554/elife.30038.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/21/2017] [Indexed: 05/23/2023] Open
Abstract
It is well documented that transposable elements (TEs) can regulate the expression of neighbouring genes. However, their ability to act in trans and influence ectopic loci has been reported rarely. We searched in rice transcriptomes for tissue-specific expression of TEs and found them to be regulated developmentally. They often shared sequence homology with co-expressed genes and contained potential microRNA-binding sites, which suggested possible contributions to gene regulation. In fact, we have identified a retrotransposon that is highly transcribed in roots and whose spliced transcript constitutes a target mimic for miR171. miR171 destabilizes mRNAs encoding the root-specific family of SCARECROW-Like transcription factors. We demonstrate that retrotransposon-derived transcripts act as decoys for miR171, triggering its degradation and thus results in the root-specific accumulation of SCARECROW-Like mRNAs. Such transposon-mediated post-transcriptional control of miR171 levels is conserved in diverse rice species.
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Affiliation(s)
- Jungnam Cho
- The Sainsbury Laboratory, University of Cambridge, Cambridge, United Kingdom
| | - Jerzy Paszkowski
- The Sainsbury Laboratory, University of Cambridge, Cambridge, United Kingdom
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