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https://www.readbyqxmd.com/read/30454897/high-glucose-induced-circhipk3-downregulation-mediates-endothelial-cell-injury
#1
Ying Cao, Guohai Yuan, Ye Zhang, Rong Lu
High glucose (HG) induces vascular endothelial cell injury. However, the underlying mechanisms are poorly understood. Circular RNA HIPK3 (circHIPK3) is a highly conserved non-coding RNA. Here we show that circHIPK3 is downregulated in HG-treated human umbilical vein endothelial cells (HUVECs) and in primary aortic endothelial cells (HAECs) from diabetic patients. In both HUVECs and HAECs, lentivirus-mediated circHIPK3 overexpression inhibited HG-induced cell death and apoptosis. Contrarily, circHIPK3 silencing by targeted siRNA exacerbated HG-induced endothelial cell death and apoptosis...
December 9, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/30352682/circular-rna-hipk3-exerts-oncogenic-properties-through-suppression-of-mir-124-in-lung-cancer
#2
Hanqing Yu, Yu Chen, Ping Jiang
The current study tested the expression and potential functions of circular RNA HIPK3 (circHIPK3) in human lung cancer. Our results show that circHIPK3 expression is upregulated in established (A549 line) and primary human lung cancer cells, when compared to its low level in the lung epithelial cells. siRNA-mediated silencing of circHIPK3 potently inhibited survival and proliferation of lung cancer cells, but inducing significant apoptosis activation. Contrarily, forced overexpression of circHIPK3 by a lentiviral construct promoted lung cancer cell survival and proliferation...
October 20, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/30286957/intrathecal-circhipk3-shrna-alleviates-neuropathic-pain-in-diabetic-rats
#3
Liang Wang, Tianyou Luo, Zhihua Bao, Yuan Li, WenJin Bu
Neuropathic pain is one of the most common diabetic complications and significantly decrease the quality of life. The aetiology of the painful diabetic neuropathic pain is not fully clear. Circular RNAs (circRNAs) have been identified as miRNA sponges and involved in various biological processes, including pain. CircHIPK3 is a circRNA that have been shown to be an oncogene or tumor suppressor to regulate cancer cells growth by sponging multiple miRNAs. However, the role of circHIPK3 in diabetic neuropathic pain remains unknown...
November 2, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/30285878/circular-rna-bcrc-3-suppresses-bladder-cancer-proliferation-through-mir-182-5p-p27-axis
#4
Fei Xie, Yawei Li, Miao Wang, Chao Huang, Dan Tao, Fuxin Zheng, Hui Zhang, Fuqing Zeng, Xingyuan Xiao, Guosong Jiang
BACKGROUND: Circular RNAs (circRNAs) are a new member of noncoding RNAs (ncRNAs) that have recently been described as key regulators of gene expression. Our previous study had identified the negative correlation between circHIPK3 and bladder cancer grade, invasion, as well as lymph node metastasis. However, the roles of circRNAs in cellular proliferation in bladder cancer remain largely unknown. METHODS: We had analyzed circRNA high-throughout sequencing from human tissues and determined bladder cancer related circRNA-3 (BCRC-3, GenBank: KU921434...
October 3, 2018: Molecular Cancer
https://www.readbyqxmd.com/read/30195762/lncrna-uca1-upregulated-in-crc-biopsies-and-downregulated-in-serum-exosomes-controls-mrna-expression-by-rna-rna-interactions
#5
Cristina Barbagallo, Duilia Brex, Angela Caponnetto, Matilde Cirnigliaro, Marina Scalia, Antonio Magnano, Rosario Caltabiano, Davide Barbagallo, Antonio Biondi, Alessandro Cappellani, Francesco Basile, Cinzia Di Pietro, Michele Purrello, Marco Ragusa
Long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs) contribute to the onset of many neoplasias through RNA-RNA competitive interactions; in addition, they could be secreted by cancer cells into biological fluids, suggesting their potential diagnostic application. By analyzing the expression of 17 lncRNAs and 31 circRNAs in biopsies and serum exosomes from colorectal cancer (CRC) patients through qRT-PCR, we detected CCAT1, CCAT2, HOTAIR, and UCA1 upregulation and CDR1AS, MALAT1, and TUG1 downregulation in biopsies...
September 7, 2018: Molecular Therapy. Nucleic Acids
https://www.readbyqxmd.com/read/30078268/-circular-rna-circhipk3-acts-as-the-sponge-of-microrna-124-to-promote-human-oral-squamous-cell-carcinoma-cells-proliferation
#6
J Wang, S Y Zhao, S S Ouyang, Z K Huang, Q Luo, L Liao
Objective: To explore the expression and clinical significance of circular RNA circHIPK3 in oral squamous cell carcinoma (OSCC), analyze the effect of circHIPK3 on the proliferation of OSCC cells. Methods: The expression of circHIPK3 in OSCC tissues, adjacent non-cancerous tissues and OSCC cell lines were detected by quantitative real-time polymerase chain reaction (qPCR). The correlations between the expression of circHIPK3 in OSCC tissues and the clinicopathological features were analyzed as well. circHIPK3-specific siRNA si-circHIPK3 and negative control siRNA si-NC were designed and synthesised and used to transfect CAL27 and SCC15 cells respectively...
August 9, 2018: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/30057315/circrna-circhipk3-serves-as-a-prognostic-marker-to-promote-glioma-progression-by-regulating-mir-654-igf2bp3-signaling
#7
Pengcheng Jin, Yuenuo Huang, Penglei Zhu, Yi Zou, Tingting Shao, Ouyang Wang
Emerging evidences show RNA back-splicing produces a new type of noncoding RNA, namely circular RNA (circRNA). Many reports demonstrate that circRNA circHIPK3 exerts oncogenic or anti-tumor roles in different cancers, such as ovarian cancer, bladder cancer, osteosarcoma, colorectal cancer and liver cancer. However, no study about circHIPK3 function in glioma exists until today. In this study, we showed that circHIPK3 was upregulated in glioma tissues. Elevated level of circHIPK3 was linked to poor prognosis...
September 10, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29959922/circular-rna-hipk3-regulates-human-lens-epithelial-cells-proliferation-and-apoptosis-by-targeting-the-mir-193a-cryaa-axis
#8
Xin Liu, Baihui Liu, Menglong Zhou, Fan Fan, Mingrong Yu, Chao Gao, Yi Lu, Yi Luo
Circular RNAs (circRNAs) are a novel class of non-coding RNAs generated from back splicing. Accumulating evidence has demonstrated their vital regulation in several biological processes and ocular diseases. However, the role of circRNAs in age-related cataract (ARC), the leading cause of visual impairment worldwide, is still unknown. CircRNA sequencing reveals that 101 circRNAs are differentially expressed between the capsules of transparent and ARC lenses, including 75 down-regulated circRNAs and 26 up-regulated circRNAs transcripts...
September 18, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29949144/circhipk3-is-upregulated-and-predicts-a-poor-prognosis-in-epithelial-ovarian-cancer
#9
N Liu, J Zhang, L-Y Zhang, L Wang
OBJECTIVE: CircRNAs have been recently identified as important regulators in tumors biological functions. However, the clinical significance of circHIPK3 in epithelial ovarian cancer (EOC) remains unknown. PATIENTS AND METHODS: The expression of circHIPK3 in EOC tumor tissues and adjacent noncancerous tissues was analyzed by quantitative Real-Time Polymerase Chain Reaction (qRT-PCR). The association between circHIPK3 expression and clinicopathological factors was analyzed by using Chi-square test...
June 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29928876/circular-rna-hipk3-promotes-gallbladder-cancer-cell-growth-by-sponging-microrna-124
#10
Ding Kai, Liao Yannian, Chen Yitian, Gong Dinghao, Zhao Xin, Ji Wu
Recent studies have implied that circHIPK3, an abundant circular RNA (circRNA), participates in tumorigenesis and cancer progression. Its expression and potential functions in human gallbladder cancer were examined in this study. We show that circHIPK3 is upregulated in human gallbladder cancer cells. But its level is low in gallbladder epithelial cells. circHIPK3 silencing by targeted siRNA potently inhibited survival and proliferation of established and primary human gallbladder cancer cells, while inducing cell apoptosis...
September 5, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29805712/circular-rna-circ_hipk3-is-down-regulated-and-suppresses-cell-proliferation-migration-and-invasion-in-osteosarcoma
#11
Ma Xiao-Long, Zhu Kun-Peng, Zhang Chun-Lin
Circular RNA (circRNA) is associated with human cancers, however, few studies have reported its value in the diagnosis and prognosis prediction of osteosarcoma (OS). In this study, we investigated the expression level of eight selected cancer-related circRNAs including circ-Cdr1as, circ_HIPK3 and circ-ITCH in OS cell lines, tissues and plasmas by quantitative real-time polymerase chain reaction (qRT-PCR) and found that only circ_HIPK3 could stably down-regulate in the OS cell lines, tissues and plasmas than the corresponding controlled...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29549306/circhipk3-promotes-colorectal-cancer-growth-and-metastasis-by-sponging-mir-7
#12
Kaixuan Zeng, Xiaoxiang Chen, Mu Xu, Xiangxiang Liu, Xiuxiu Hu, Tao Xu, Huiling Sun, Yuqin Pan, Bangshun He, Shukui Wang
Mounting evidences indicate that circular RNAs (circRNAs) have a vital role in human diseases, especially cancers. More recently, circHIPK3, a particularly abundant circRNA, was proposed to be involved in tumorigenesis. However, its role in colorectal cancer (CRC) has not been explored. In this study, we found circHIPK3 was significantly upregulated in CRC tissues and cell lines, at least in part, due to c-Myb overexpression and positively correlated with metastasis and advanced clinical stage. Moreover, Cox multivariate survival analysis showed that high-level expression of circHIPK3 was an independent prognostic factor of poor overall survival (OS) in CRC (hazard ratio [HR] = 2...
April 1, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29415990/circhipk3-regulates-cell-proliferation-and-migration-by-sponging-mir-124-and-regulating-aqp3-expression-in-hepatocellular-carcinoma
#13
Genwen Chen, Yanting Shi, Mengmeng Liu, Jianyong Sun
Noncoding RNAs plays an important role in hepatocellular carcinoma (HCC). Here, we show that miR-124 was downregulated in HCC tissues and that the ectopic expression of miR-124 inhibited the proliferation and migration of HCC cells. We proposed that aquaporin 3 (AQP3) is a direct target of miR-124. AQP3 was upregulated in HCC tissues and inversely correlated with miR-124 expression. The overexpression of miR-124 decreased AQP3 expression. Indeed, AQP3 overexpression promoted cell proliferation and migration, whereas miR-124 knockdown suppressed cell proliferation and migration...
February 7, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29396373/circular-rnas-as-novel-regulators-of-%C3%AE-cell-functions-in-normal-and-disease-conditions
#14
Lisa Stoll, Jonathan Sobel, Adriana Rodriguez-Trejo, Claudiane Guay, Kailun Lee, Morten Trillingsgaard Venø, Jørgen Kjems, D Ross Laybutt, Romano Regazzi
OBJECTIVE: There is strong evidence for an involvement of different classes of non-coding RNAs, including microRNAs and long non-coding RNAs, in the regulation of β-cell activities and in diabetes development. Circular RNAs were recently discovered to constitute a substantial fraction of the mammalian transcriptome but the contribution of these non-coding RNAs in physiological and disease processes remains largely unknown. The goal of this study was to identify the circular RNAs expressed in pancreatic islets and to elucidate their possible role in the control of β-cells functions...
March 2018: Molecular Metabolism
https://www.readbyqxmd.com/read/28860123/circular-noncoding-rna-hipk3-mediates-retinal-vascular-dysfunction-in-diabetes-mellitus
#15
Kun Shan, Chang Liu, Bai-Hui Liu, Xue Chen, Rui Dong, Xin Liu, Yang-Yang Zhang, Ban Liu, Shu-Jie Zhang, Jia-Jian Wang, Sheng-Hai Zhang, Ji-Hong Wu, Chen Zhao, Biao Yan
BACKGROUND: The vascular complications of diabetes mellitus are the major causes of morbidity and mortality among people with diabetes. Circular RNAs are a class of endogenous noncoding RNAs that regulate gene expression in eukaryotes. In this study, we investigated the role of circular RNA in retinal vascular dysfunction induced by diabetes mellitus. METHODS: Quantitative polymerase chain reactions, Sanger sequencing, and Northern blots were conducted to detect circular HIPK3 (circHIPK3) expression pattern on diabetes mellitus-related stresses...
October 24, 2017: Circulation
https://www.readbyqxmd.com/read/28794202/circhipk3-sponges-mir-558-to-suppress-heparanase-expression-in-bladder-cancer-cells
#16
Yawei Li, Fuxin Zheng, Xingyuan Xiao, Fei Xie, Dan Tao, Chao Huang, Dong Liu, Miao Wang, Liang Wang, Fuqing Zeng, Guosong Jiang
Increasing evidences suggest that circular RNAs (circRNAs) exert crucial functions in regulating gene expression. In this study, we perform RNA-seq and identify 6,154 distinct circRNAs from human bladder cancer and normal bladder tissues. We find that hundreds of circRNAs are significantly dysregulated in human bladder cancer tissues. We further show that circHIPK3, also named bladder cancer-related circular RNA-2 (BCRC-2), is significantly down-regulated in bladder cancer tissues and cell lines, and negatively correlates with bladder cancer grade, invasion as well as lymph node metastasis, respectively...
September 2017: EMBO Reports
https://www.readbyqxmd.com/read/28738961/-circular-rna-circhipk3-promotes-nci-h1299-and-nci-h2170-cell-proliferation-through-mir-379-and-its-target-igf1
#17
Fang Tian, Yun Wang, Zhe Xiao, Xuejun Zhu
BACKGROUND: It has been proven that the circular RNA, possessing a stable covalently closed continuous loop, is a type of RNA molecule which is expressed widespread in mammals. The circular RNA circHIPK3 is abundantly expressed in hepatocellular carcinoma (HCC) and promotes tumourgenesis. However, a role for circHIPK3 has not been systematically examined in non-small cell lung cancer (NSCLC). In this study, we investigated whether circHIPK3 has an effect on cell proliferation in the NSCLC cell lines NCI-H1299 and NCI-H2170 and the underlying molecular mechanisms...
July 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/27050392/circular-rna-profiling-reveals-an-abundant-circhipk3-that-regulates-cell-growth-by-sponging-multiple-mirnas
#18
Qiupeng Zheng, Chunyang Bao, Weijie Guo, Shuyi Li, Jie Chen, Bing Chen, Yanting Luo, Dongbin Lyu, Yan Li, Guohai Shi, Linhui Liang, Jianren Gu, Xianghuo He, Shenglin Huang
Circular RNAs (circRNAs) represent a class of widespread and diverse endogenous RNAs that may regulate gene expression in eukaryotes. However, the regulation and function of human circRNAs remain largely unknown. Here we generate ribosomal-depleted RNA sequencing data from six normal tissues and seven cancers, and detect at least 27,000 circRNA candidates. Many of these circRNAs are differently expressed between the normal and cancerous tissues. We further characterize one abundant circRNA derived from Exon2 of the HIPK3 gene, termed circHIPK3...
2016: Nature Communications
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