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https://www.readbyqxmd.com/read/28239461/tissue-microrna-profiles-as-diagnostic-and-prognostic-biomarkers-in-patients-with-resectable-pancreatic-ductal-adenocarcinoma-and-periampullary-cancers
#1
Dan Calatayud, Christian Dehlendorff, Mogens K Boisen, Jane Preuss Hasselby, Nicolai Aagaard Schultz, Jens Werner, Heike Immervoll, Anders Molven, Carsten Palnæs Hansen, Julia S Johansen
BACKGROUND: The aim of this study was to validate previously described diagnostic and prognostic microRNA expression profiles in tissue samples from patients with pancreatic cancer and other periampullary cancers. METHODS: Expression of 46 selected microRNAs was studied in formalin-fixed paraffin-embedded tissue from patients with resected pancreatic ductal adenocarcinoma (n = 165), ampullary cancer (n=59), duodenal cancer (n = 6), distal common bile duct cancer (n = 21), and gastric cancer (n = 20); chronic pancreatitis (n = 39); and normal pancreas (n = 35)...
2017: Biomarker Research
https://www.readbyqxmd.com/read/28219405/ttbk2-circular-rna-promotes-glioma-malignancy-by-regulating-mir-217-hnf1%C3%AE-derlin-1-pathway
#2
Jian Zheng, Xiaobai Liu, Yixue Xue, Wei Gong, Jun Ma, Zhuo Xi, Zhongyou Que, Yunhui Liu
BACKGROUND: Circular RNAs are a subgroup of non-coding RNAs and generated by a mammalian genome. Herein, the expression and function of circular RNA circ-TTBK2 were investigated in human glioma cells. METHODS: Fluorescence in situ hybridization and quantitative real-time PCR were conducted to profile the cell distribution and expression of circ-TTBK2 and microRNA-217 (miR-217) in glioma tissues and cells. Immunohistochemical and western blot were used to determine the expression of HNF1β and Derlin-1 in glioma tissues and cells...
February 20, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28184926/mir-217-suppresses-proliferation-migration-and-invasion-promoting-apoptosis-via-targeting-mtdh-in-hepatocellular-carcinoma
#3
Mao Zhang, Min Li, Na Li, Zilang Zhang, Ning Liu, Xiaoyu Han, Qincheng Liu, Caixian Liao
Hepatocellular carcinoma (HCC) has frequent incidence and the third highest mortality rate among cancers in the world. This study aimed to clarify the roles of miR-217 and metadherin (MTDH) in HCC. First, we identified that miR-217 expression was downregulated and MTDH expression was upregulated in the HCC tissues. Functional studies revealed that miR-217 negatively regulated MTDH expression via binding to the 3'-untranslated region of MTDH mRNA in the HCC cells. In our further studies, the miR-217 overexpression resulted in downregulation of MTDH expression in HCC cells...
March 2017: Oncology Reports
https://www.readbyqxmd.com/read/28152297/ddx53-promotes-cancer-stem-cell-like-properties-and-autophagy
#4
Hyuna Kim, Youngmi Kim, Dooil Jeoung
Although cancer/testis antigen DDX53 confers anti-cancer drug-resistance, the effect of DDX53 on cancer stem cell-like properties and autophagy remains unknown. MDA-MB-231 (CD133(+)) cells showed higher expression of DDX53, SOX-2, NANOG and MDR1 than MDA-MB-231 (CD133(-)). DDX53 increased in vitro self-renewal activity of MCF-7 while decreasing expression of DDX53 by siRNA lowered in vitro self-renewal activity of MDA-MB-231. DDX53 showed an interaction with EGFR and binding to the promoter sequences of EGFR...
January 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28150831/microrna-mediated-silence-of-onco-lncrna-malat1-in-different-escc-cells-via-ligand-functionalized-hydroxyl-rich-nanovectors
#5
Rui-Quan Li, Yanli Ren, Wenjuan Liu, Wenting Pan, Fu-Jian Xu, Ming Yang
Esophageal squamous cell carcinoma (ESCC) is one of the most lethal malignancies worldwide. Long noncoding RNA (lncRNA) MALAT1 acts as an essential oncogene lncRNA (onco-lncRNA) in the development of ESCC. Down-regulation of onco-lncRNA MALAT1 mediated by microRNA-101 (miR-101) and microRNA-217 (miR-217) has been proved to effectively suppress ESCC. In this study, poly(glycidyl methacrylate)-based star-like polycations with flanking folic acid (FA) ligands and rich hydrophilic hydroxyl groups (denoted as s-PGEA-FA) were proposed as efficient nanovectors to deliver miR-101 and miR-217 for silencing onco-lncRNA MALAT1 in different ESCC cells...
February 2, 2017: Nanoscale
https://www.readbyqxmd.com/read/28126486/mir-217-promoted-the-proliferation-and-invasion-of-glioblastoma-by-repressing-ywhag
#6
Hongbin Wang, Hua Zhi, Dongzhou Ma, Tao Li
AIM: To study the effects of miR-217 on glioblastoma cell proliferation, migration and invasion and its regulation on YWHAG. METHODS: QRT-PCR was used to detect the expression of related mRNAs and miRNA in both glioblastoma tissues and cells. Western blot was used to determine the protein expression of related genes. The transfection was performed using lipo2000. MTT assay, colony formation assay, wound healing assay, Transwell assay as well as flow cytometry were employed to determine the viability, proliferation, migration, invasion and mitosis of UG87 MG cell line...
January 23, 2017: Cytokine
https://www.readbyqxmd.com/read/28105166/mir-217-regulates-tumor-growth-and-apoptosis-by-targeting-the-mapk-signaling-pathway-in-colorectal-cancer
#7
Nan Zhang, Canrong Lu, Lin Chen
MicroRNA (miR)-217 has been reported to participate in carcinogenesis and tumor progression in several cancers; however, its expression and biological functions in colorectal cancer (CRC) are still unclear. The present study demonstrated that miR-217 expression was significantly higher in matched adjacent noncancerous tissues than in CRC tissues (P<0.001). In addition, it was observed that low-grade CRC exhibited greater expression of miR-217 compared with high-grade CRC (P<0.05). Kaplan-Meier survival and Cox regression analyses revealed that overall survival rates were significantly poorer in the low-expression group relative to the high-expression group (P<0...
December 2016: Oncology Letters
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
#8
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
#9
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
#10
RANDOMIZED CONTROLLED TRIAL
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...
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
#11
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...
January 29, 2017: 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
#12
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...
February 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/27916422/pgc-1-alpha-interacts-with-microrna-217-to-functionally-regulate-breast-cancer-cell-proliferation
#13
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
#14
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
#15
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
#16
Yu-Wei Tian, Quan Shen, Qing-Feng Jiang, Yao-Xuan Wang, Ke Li, Huan-Zhou 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...
April 2017: Minerva Medica
https://www.readbyqxmd.com/read/27866884/microrna-biomarkers-of-pancreatic-injury-in-a-canine-model
#17
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
#18
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
#19
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
#20
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
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