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https://www.readbyqxmd.com/read/28062277/circ100284-via-mir-217-regulation-of-ezh2-is-involved-in-the-arsenite-accelerated-cell-cycle-of-human-keratinocytes-in-carcinogenesis
#1
Junchao Xue, Yang Liu, Fei Luo, Xiaolin Lu, Hui Xu, Xinlu Liu, Lu Lu, Qianlei Yang, Chao Chen, Weimin Fan, Qizhan Liu
Circular RNAs (circRNAs), a class of noncoding RNAs generated from pre-mRNAs, participate in regulation of genes. The mechanism for regulation, however, is unknown. Here, to determine if, in human keratinocyte (HaCaT) cells, circular RNAs are involved in arsenite-induced acceleration of the cell cycle, a circRNA microarray was performed to analyze the variability of circRNAs in arsenite-treated HaCaT (As-HaCaT) cells and in arsenite-transformed (T-HaCaT) cells in comparison to control HaCaT cells. Among the circRNAs up-regulated in both As-HaCaT cells and T-HaCaT cells, hsa:circRNA_100284 (circ100284) had the greatest increase and was chosen for further research...
January 3, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28054243/differential-expression-and-mirna-regulation-of-the-gstp1-gene-in-the-regenerating-liver-of-chiloscyllium-plagiosum
#2
Yinghua Ge, Jiewen Zhang, Xinyi Shi, Conger Lu, Lingrong Yang, Yuanyuan Li, Yanna Chen, Dandan Cheng, Jing Bai, Zhengbing Lv, Lili Liu
Liver regeneration is a complicated process, and understanding the regulatory mechanism will be helpful in the treatment of diseases associated with liver. In this study, the one-third liver resection model was established in Chiloscyllium plagiosum, and the whole transcriptome of the C. plagiosum was generated using the Illumina-Solexa sequencing platform. Differentially expressed genes were analyzed using bioinformatics methods and verified using quantitative real-time PCR (qRT-PCR). Using miRanda and TargetScan, we screened the microRNA library for miRNAs that target the glutathione S-transferase P1(GSTP1) gene...
January 4, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28049190/the-efficacy-of-rituximab-combined-with-131i-for-ophthalmic-outcomes-of-graves-ophthalmopathy-patients
#3
Jiagen Li, Zhangsheng Xiao, Xianjie Hu, Yun Li, Xing Zhang, Songze Zhang, Weikun Gong, Jianqiang Zhao, Xuemei Ye
PURPOSE: The purpose of this study is to examine the effectiveness of introducing both rituximab (RTX) and 131I for active Graves' ophthalmopathy (GO) with hyperthyroidism. METHODS: In total, 217 patients suffering from active GO with hyperthyroidism were included in this research. All subjects were randomly assigned to 3 groups. Patients in group A solely received 131I treatment; group B1 underwent a methylprednisolone treatment in combination with 131I treatment; and group B2 received an RTX in combination with 131I treatment...
January 4, 2017: Pharmacology
https://www.readbyqxmd.com/read/28017719/repression-of-mir-217-protects-against-high-glucose-induced-podocyte-injury-and-insulin-resistance-by-restoring-pten-mediated-autophagy-pathway
#4
Juan Sun, Zhao Pin Li, Rui Qin Zhang, Hui Min Zhang
Podocyte damage is the initial hallmark of diabetic nephropathy (DN), leading to the increasing morbidity and mortality in diabetic patients. Recent researches have corroborated the critical roles of miRNAs in the pathological progression of DN. Here, elevation of miR-217 was verified in high glucose (HG)-stimulated podocytes. Moreover, blocking miR-217 expression antagonized HG-induced cell injury by attenuating the adverse role of HG on cell viability and inhibiting ROS levels and cell apoptosis. Simultaneously, miR-217 repression restored HG-disrupted insulin resistance by elevating glucose uptake and nephrin expression, an essential component for insulin-induced glucose uptake...
December 23, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28013573/evaluation-of-mir-216a-and-mir-217-as-potential-biomarkers-of-acute-exocrine-pancreatic-toxicity-in-rats
#5
Jianying Wang, Wenhu Huang, Stephane Thibault, Thomas P Brown, Walter Bobrowski, Hovhannes J Gukasyan, Winston Evering, Wenyue Hu, Annette John-Baptiste, Allison Vitsky
Detecting and monitoring exocrine pancreatic damage during nonclinical and clinical testing is challenging because classical biomarkers amylase and lipase have limited sensitivity and specificity. Novel biomarkers for drug-induced pancreatic injury are needed to improve safety assessment and reduce late-stage attrition rates. In a series of studies, miR-216a and miR-217 were evaluated as potential biomarkers of acute exocrine pancreatic toxicity in rats. Our results revealed that miR-216a and miR-217 were almost exclusively expressed in rat pancreas and that circulating miR-216a and miR-217 were significantly increased in rats following administration of established exocrine pancreatic toxicants caerulein (CL) and 1-cyano-2-hydroxy-3-butene (CHB) as well as in rats administered a proprietary molecule known to primarily affect the exocrine pancreas...
January 1, 2016: Toxicologic Pathology
https://www.readbyqxmd.com/read/27916422/pgc-1-alpha-interacts-with-microrna-217-to-functionally-regulate-breast-cancer-cell-proliferation
#6
Shaohui Zhang, Xinguo Liu, Jianming Liu, Heng Guo, Hongfeng Xu, Geng Zhang
BACKGROUND: In this study, we explored the functional mechanism of PPARg co-activator 1-alpha (PGC-1α) in regulating miR-217-mediated breast cancer development in vitro. METHODS: Dual-luciferase activity assay was applied to examine the binding of miR-217 on PGC-1α gene. Breast cancer cell lines, MCF-7 and MDA-MB-231 were infected by lentivirus to constitutively downregulate miR-217. Its regulation on PGC-1α expression was investigated by qRT-PCR and western blot...
January 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27893688/identification-of-genes-and-signaling-pathways-associated-with-diabetic-neuropathy-using-a-weighted-correlation-network-analysis-a-consort-study
#7
Ya Li, Weiguo Ma, Chuanqing Xie, Min Zhang, Xiaohong Yin, Fenfen Wang, Jie Xu, Bingyin Shi
BACKGROUND: The molecular mechanisms behind diabetic neuropathy remains to be investigated. METHODS: This is a secondary study on microarray dataset (GSE24290) downloaded from Gene Expression Omnibus (GEO) at the National Center for Biotechnology Information (NCBI), which included 18 nerve tissue samples of progressing diabetic neuropathy (fibers loss ≥500 fibers/mm) and 17 nerve tissue samples of nonprogressing diabetic neuropathy (fibers loss ≤100 fibers/mm)...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27893464/the-h3k9-dimethyltransferases-ehmt1-2-protect-against-pathological-cardiac-hypertrophy
#8
Bernard Thienpont, Jan Magnus Aronsen, Emma Louise Robinson, Hanneke Okkenhaug, Elena Loche, Arianna Ferrini, Patrick Brien, Kanar Alkass, Antonio Tomasso, Asmita Agrawal, Olaf Bergmann, Ivar Sjaastad, Wolf Reik, Hywel Llewelyn Roderick
Cardiac hypertrophic growth in response to pathological cues is associated with reexpression of fetal genes and decreased cardiac function and is often a precursor to heart failure. In contrast, physiologically induced hypertrophy is adaptive, resulting in improved cardiac function. The processes that selectively induce these hypertrophic states are poorly understood. Here, we have profiled 2 repressive epigenetic marks, H3K9me2 and H3K27me3, which are involved in stable cellular differentiation, specifically in cardiomyocytes from physiologically and pathologically hypertrophied rat hearts, and correlated these marks with their associated transcriptomes...
January 3, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/27879964/decreased-levels-of-mir-34a-and-mir-217-act-as-predictor-biomarkers-of-aggressive-progression-and-poor-prognosis-in-hepatocellular-carcinoma
#9
W Yu, Quan Shen, Qing F Jiang, Yao X Wang, Ke Li, Huan Z Xue
BACKGROUND: MicroRNAs (miRNAs) play key roles in tumor development and progression. The aim of this study was to explore the expression levels of miR-34a and miR-217 in hepatocellular carcinoma (HCC) and to further investigate the clinicopathological and prognostic value of miR-34a and miR-217. METHODS: The expression levels of miR-34a and miR-217 were evaluated using quantitative real-time PCR (qRT-PCR). Associations between these miRNAs expression and clinicopathological features were analyzed...
November 23, 2016: Minerva Medica
https://www.readbyqxmd.com/read/27866884/microrna-biomarkers-of-pancreatic-injury-in-a-canine-model
#10
Rodney Rouse, Barry Rosenzweig, Katie Shea, Alan Knapton, Sharron Stewart, Lin Xu, Ashok Chockalingam, Leah Zadrozny, Karol Thompson
Pancreas-enriched microRNAs have been experimentally investigated in rodents as candidate serum biomarkers of pancreatic injury with several different acute pancreatic injury models. In the present study, temporal and magnitude responses of exocrine pancreas-enriched miR-216a, miR-216b, and miR-217 and endocrine-enriched miR-375 and miR-148a were measured by droplet digital PCR in serum in a caerulein model of pancreatic injury in the dog. All 5 microRNAs followed a similar time course that mirrored the responses of the conventional serum pancreatic injury biomarkers, amylase and lipase...
January 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/27832948/up-regulated-of-mir-8159-5p-and-mir-217-5p-by-lps-stimulation-negatively-co-regulate-tlr1-in-miiuy-croaker
#11
Qing Chu, Yuena Sun, Dekun Bi, Junxia Cui, Tianjun Xu
Toll-like receptors (TLRs) are a group of pattern-recognition receptors which play vital roles in ligand recognition and activation of the innate immune response. As an important member of TLRs family, TLR1 is mainly responsible for PAMPs from bacteria and play a pivotal role in sensing microbial products. Recent studies revealed that TLR1 could perceive LPS stimulation and transfer signals to activate the NF-κB pathway, whereas ligands and signaling pathway of TLR1 are still unclear in fish. Growing evidence has shown that miRNAs (microRNAs) play as negative regulators in controlling the diverse of biophysical and biochemical processes at the post-transcriptional level...
February 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/27784461/-expression-of-microrna-152-in-colorectal-cancer-and-its-relationship-with-prognosis
#12
Y Wang, W Yuan, X Ma, J Ma
Objective: The aim of this study was to detect the expression level of miR-152 in colorectal cancer (CRC) and adjacent tissues, and to explore its relationship with clinicopathological features and potential to be a prognosis biomarker in CRC patients. Methods: The expression of miR-152 was detected by real-time quantitative PCR in 202 colorectal cancer and adjacent colorectal tissues. Cox proportional hazard model was used to analyze the relationship between the expression level of miR-152 and prognosis of colorectal cancer patients...
October 23, 2016: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/27753015/liquid-profiling-in-lung-cancer-quantification-of-extracellular-mirnas-in-bronchial-lavage
#13
Bernd Schmidt, Grit Rehbein, Michael Fleischhacker
Extracellular miRNAs cannot only be isolated from different body fluids like plasma and serum, but also from bronchial lavage samples (BL) obtained by bronchoscopy. Alterations in the expression of microRNAs might be useful for a discrimination of lung cancer patients from patients with a benign lung disease. We profiled extracellular microRNAs from three BL pools of lung cancer patients and three BL pools from a control group (patients with a benign lung disease) with TaqMan MicroRNA Array cards. For the confirmation of these results, we analyzed a panel of eight miRNAs in a qRT-PCR of the BL of 30 different lung cancer and non-cancerous patients...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27689326/an-artificial-lncrna-targeting-multiple-mirnas-overcomes-sorafenib-resistance-in-hepatocellular-carcinoma-cells
#14
Shuyao Tang, Gang Tan, Xian Jiang, Peng Han, Bo Zhai, Xuesong Dong, Haiquan Qiao, Hongchi Jiang, Xueying Sun
Sorafenib resistance remains a major obstacle for the effective treatment of hepatocellular carcinoma (HCC), and a number of miRNAs contribute to this resistance. However, the regulatory networks of miRNAs are very complex, thus inhibiting a single miRNA may sequentially activate other compensatory pathways. In the present study, we generated an artificial long non-coding RNA (AlncRNA), which simultaneously targets multiple miRNAs including miR-21, miR-153, miR-216a, miR-217, miR-494 and miR-10a-5p. These miRNAs have been shown to be upregulated in sorafenib-resistant cells and participate in the mechanisms underlying sorafenib resistance...
September 28, 2016: Oncotarget
https://www.readbyqxmd.com/read/27686613/comprehensive-analysis-of-microrna-signature-of-mouse-pancreatic-acini-overexpression-of-mir-21-3p-in-acute-pancreatitis
#15
Ajay Kumar Dixit, Anne E Sarver, Zuobiao Yuan, John George, Usman Barlass, Hassam Cheema, Archana Sareen, Sulagna Banerjee, Vikas Dudeja, Rajinder Dawra, Subbaya Subramanian, Ashok K Saluja
In the current study, we have characterized the global miRNA expression profile in mouse pancreatic acinar cells and during acute pancreatitis using next-generation RNA sequencing. We identified 324 known and six novel miRNAs that are expressed in mouse pancreatic acinar cells. In the basal state, miR-148a-3p, miR-375-3p, miR-217-5p, and miR-200a-3p were among the most abundantly expressed, whereas miR-24-5p and miR-421-3p were the least abundant. Treatment of acinar cells with caerulein (100 nM) and taurolithocholic acid 3-sulfate [TLC-S (250 μM)] induced numerous changes in miRNA expression profile...
November 1, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/27541609/mir-216-and-mir-217-expression-is-reduced-in-transgenic-mouse-models-of-pancreatic-adenocarcinoma-knockout-of-mir-216-mir-217-host-gene-is-embryonic-lethal
#16
Ana Clara P Azevedo-Pouly, Dhruvitkumar S Sutaria, Jinmai Jiang, Ola A Elgamal, Foued Amari, David Allard, Paul J Grippo, Vincenzo Coppola, Thomas D Schmittgen
Mice harboring a G12D activating Kras mutation are among the most heavily studied models in the field of pancreatic adenocarcinoma (PDAC) research. miRNAs are differentially expressed in PDAC from patients and mouse models of PDAC. To better understand the relationship that Kras activation has on miRNA expression, we profiled the expression of 629 miRNAs in RNA isolated from the pancreas of control, young, and old P48(+/Cre);LSL-KRAS(G12D) as well as PDX-1-Cre;LSL-KRAS(G12D) mice. One hundred of the differentially expressed miRNAs had increased expression in the advanced disease (old) P48(+/Cre);LSL-KRAS(G12D) compared to wild-type mice...
August 19, 2016: Functional & Integrative Genomics
https://www.readbyqxmd.com/read/27522360/changes-of-serum-mir-217-and-the-correlation-with-the-severity-in-type-2-diabetes-patients-with-different-stages-of-diabetic-kidney-disease
#17
Ying Shao, Huiwen Ren, Chuan Lv, Xiaoyu Ma, Can Wu, Qiuyue Wang
The aim of this study is to investigate the correlation between serum microRNA-217 and the severity of diabetic kidney disease determined by albuminuria. Four hundred ninety five type 2 diabetes patients were divided into three groups: normoalbuminuric group, microalbuminuric group, and macroalbuminuric group. Serum microRNA-217 levels were validated by real-time polymerase chain reaction. Serum silent information regulator 1, Hypoxia-inducible factor-1α and vascular endothelial growth factor were determined by enzyme-linked immunosorbent assay...
August 13, 2016: Endocrine
https://www.readbyqxmd.com/read/27521901/serum-micrornas-217-and-375-as-biomarkers-of-acute-pancreatic-injury-in-rats
#18
Jacqueline Calvano, Gwendolyn Edwards, Clifford Hixson, Holly Burr, Raja Mangipudy, Mark Tirmenstein
Pancreatic injury in rats is primarily detected through histopathological changes and conventional serum biomarkers such as amylase and lipase. However, amylase and lipase have a short half-life and are markers of acinar, not islet cell injury. We investigated whether circulating microRNA (miR) levels that are enriched in acinar cells (miR-217, miR-216a/b) or islet cells (miR-375) could serve as markers of pancreatic injury. Rats were treated with a single dose of either vehicle, streptozotocin (STZ), caerulein, or acetaminophen (APAP), and necropsied at 4, 24, and 48h...
August 10, 2016: Toxicology
https://www.readbyqxmd.com/read/27384321/distinct-microrna-expression-signatures-of-porcine-induced-pluripotent-stem-cells-under-mouse-and-human-esc-culture-conditions
#19
Wei Zhang, Liang Zhong, Jing Wang, Jianyong Han
It is well known that microRNAs play a very important role in regulating reprogramming, pluripotency and cell fate decisions. Porcine induced pluripotent stem cells (piPSCs) are now available for studying the pluripotent regulation network in pigs. Two types of piPSCs have been derived from human and mouse embryonic stem cell (ESC) culture conditions: hpiPSCs and mpiPSCs, respectively. The hpiPSCs were morphologically similar to human ESCs, and the mpiPSCs resembled mouse ESCs. However, our current understanding of the role of microRNAs in the development of piPSCs is still very limited...
2016: PloS One
https://www.readbyqxmd.com/read/27333430/microrna-217-suppresses-homocysteine-induced-proliferation-and-migration-of-vascular-smooth-muscle-cells-via-n-methyl-d-aspartic-acid-receptor-inhibition
#20
Hongyan Duan, Yongqiang Li, Lijie Yan, Haitao Yang, Jintao Wu, Peng Qian, Bing Li, Shanling Wang
Hyperhomocysteine has become a critical risk for atherosclerosis and can stimulate proliferation and migration of vascular smooth muscle cells (VSMCs). N-methyl-D-aspartic acid receptor (NMDAR) is a receptor of homocysteine and mediates the effects of homocysteine on VSMCs. Bioinformatics analysis has shown NMDAR is a potential target of microRNA-217 (miR-217), which exerts multiple functions in cancer tumorigenesis and carotid plaque progression. In this study, we sought to investigate the role of miR-217 in VSMCs phenotype transition under homocysteine exposure and elucidate its effect on atherosclerotic plaque formation...
October 2016: Clinical and Experimental Pharmacology & Physiology
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