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https://www.readbyqxmd.com/read/28433553/identification-and-validation-of-micrornas-directly-regulating-the-udp-glucuronosyltransferase-1a-subfamily-enzymes-by-a-functional-genomics-approach
#1
Ioannis Papageorgiou, Michael H Court
Posttranscriptional repression of UDP-glucuronosyltransferase (UGT) 1A expression by microRNAs (miRNAs) may be an important mechanism underlying interindividual variability in drug glucuronidation. Furthermore, the UGT1A 3'-UTR shared by all UGT1A enzymes is polymorphic, containing three linked SNPs (rs10929303, rs1042640, and rs8330) that could influence miRNA binding. The aim of this study was to identify the complete complement of miRNAs that could regulate UGT1A expression through binding to the reference and/or common variant UGT1A 3'-UTR...
April 19, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28430660/screening-differential-circular-rna-expression-profiles-reveals-hsa_circ_0004018-is-associated-with-hepatocellular-carcinoma
#2
Liyun Fu, Ting Yao, Qingqing Chen, Xiaoyan Mo, Yaoren Hu, Junming Guo
Circular RNAs (circRNAs) have been emerged as an indispensable part of endogenous RNA network. However, the expression significance of circRNAs in hepatocellular carcinoma (HCC) is rarely revealed. The aim of this study was to determine the circRNA expression profile in HCC, and to investigate their clinical significances and relevant mechanisms for cancer progression. The global circRNA expression profile in HCC was measured by circRNA microarray. Levels of one representative circRNAs, hsa_circ_0004018, were confirmed by real-time reverse transcription-polymerase chain reaction...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430582/lncrna-chrf-induced-mir-489-loss-promotes-metastasis-of-colorectal-cancer-via-twist1-emt-signaling-pathway
#3
Youmao Tao, Tao Han, Tao Zhang, Chong Ma, Caixia Sun
microRNA-489 (miR-489) is a novel cancer-related miRNAs and functions as a tumor suppressor in human cancers. While, the clinical significance of miR-489 and its role in colorectal cancer (CRC) remain rarely known. Here, we found that the levels of miR-489 in CRC tissues were significantly lower than those in matched tumor-adjacent tissues. Furthermore, decreased levels of miR-489 also observed in CRC cell lines compared to HIEC cells. Clinicopathological analysis revealed that miR-489 underexpression was positively correlated with advanced pT stage, pN stage and AJCC stage...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28429344/up-regulation-of-microrna-367-promotes-liver-steatosis-through-repressing-tbl1-in-obese-mice
#4
D-D Li, Y Liu, L Xue, D-Y Su, W-Y Pang
OBJECTIVE: Increasing evidence has demonstrated that microRNAs (miRNAs) play a critical role in the progression of metabolic disorders, including obesity-induced non-alcoholic fatty liver disease (NAFLD). In the present study, the expression and function of miR-367 were investigated. MATERIALS AND METHODS: C57BL/6 male mice aged 8 weeks were fed with a normal diet (ND) or high-fat-diet (HFD). The expression levels of miR-367 were analyzed in livers from two groups of mice by quantitative real-time PCR...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28428278/oncogenic-role-of-snd1-in-development-and-progression-of-hepatocellular-carcinoma
#5
Nidhi Jariwala, Devaraja Rajasekaran, Rachel G Mendoza, Xue-Ning Shen, Ayesha Siddiq, Maaged Akiel, Chadia L Robertson, Mark A Subler, Jolene Windle, Paul B Fisher, Arun J Sanyal, Devanand Sarkar
SND1, a subunit of the miRNA regulatory complex RISC, has been implicated as an oncogene in hepatocellular carcinoma (HCC). In this study, we show that hepatocyte-specific SND1 transgenic mice (Alb/SND1 mice) develop spontaneous HCC with partial penetrance and exhibit more highly aggressive HCC induced by chemical carcinogenesis. Livers from Alb/SND1 mice exhibited a relative increase in inflammatory markers and spheroid-generating tumor initiating cells (TIC). Mechanistic investigations defined roles for Akt and NF-kappaB signaling pathways in promoting TIC formation in Alb/SND1 mice...
April 20, 2017: Cancer Research
https://www.readbyqxmd.com/read/28424428/global-mirna-expression-profiling-of-domestic-cat-livers-following-acute-toxoplasma-gondii-infection
#6
Wei Cong, Xiao-Xuan Zhang, Jun-Jun He, Fa-Cai Li, Hany M Elsheikha, Xing-Quan Zhu
Although microRNAs (miRNAs) play an important role in liver homeostasis, the extent to which they can be altered by Toxoplasma gondii infection is unknown. Here, we utilized small RNA sequencing and bioinformatic analyses to characterize miRNA expression profiles in the liver of domestic cats at 7 days after oral infection with T. gondii (Type II) strain. A total of 384 miRNAs were identified and 82 were differentially expressed, of which 33 were up-regulated and 49 down-regulated. Also, 5690 predicted host gene targets for the differentially expressed miRNAs were identified using the bioinformatic algorithm miRanda...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415758/differential-microrna-expression-profiling-in-primary-tumors-and-matched-liver-metastasis-of-patients-with-colorectal-cancer
#7
Wenhua Li, Jinjia Chang, Duo Tong, Junjie Peng, Dan Huang, Weijian Guo, Wen Zhang, Jin Li
BACKGROUND: Liver metastasis is common in patients with colorectal cancer (CRC), and is correlated with poor outcome. MicroRNAs (miRNAs) are small non-coding RNAs involved in cancer development and progression, but their role in CRC liver metastasis has not been extensively investigated. RESULTS: Thirteen miRNAs were deregulated in pCRCs compared to their matched liver metastases. Seventeen miRNAs were chosen for validation, which confirmed significantly reduced expression of miR-99b-5p, miR-377 and miR-200c and increased expression of miR-196b-5p in the tissue of liver metastasis...
March 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415618/circular-rna-alterations-are-involved-in-resistance-to-avian-leukosis-virus-subgroup-j-induced-tumor-formation-in-chickens
#8
Xinheng Zhang, Yiming Yan, Xiaoya Lei, Aijun Li, Huanmin Zhang, Zhenkai Dai, Xinjian Li, Weiguo Chen, Wencheng Lin, Feng Chen, Jingyun Ma, Qingmei Xie
Avian leukosis virus subgroup (ALV-J) is an oncogenic neoplasm-inducing retrovirus that causes significant economic losses in the poultry industry. Recent studies have demonstrated circular RNAs (circRNAs) are implicated in pathogenic processes; however, no research has indicated circRNAs are involved in resistance to disease. In this study, over 1800 circRNAs were detected by circRNA sequencing of liver tissues from ALV-J-resistant (n = 3) and ALV-J-susceptible chickens (n = 3). 32 differentially expressed circRNAs were selected for analyzing including 12 upregulated in ALV-J-resistant chickens and 20 upregulated in ALV-J-susceptible chickens, besides, the top five microRNAs (miRNAs) for 12 upregulated circRNAs in ALV-J-resistant chickens were analyzed...
March 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28414949/ebv-encoded-micrornas-profile-evaluation-in-pediatric-liver-transplant-recipients
#9
Massimiliano Bergallo, Stefano Gambarino, Michele Pinon, Veronica Barat, Paola Montanari, Valentina Daprà, Ilaria Galliano, Pier Luigi Calvo
BACKGROUND: Epstein-Barr virus (EBV) infects 90% of the world population, commonly causing self-limiting infectious mononucleosis or rarely inciting a range of malignancies. EBV microRNAs (miRNAs) were discovered by sequencing libraries of small RNAs generated from several EBV-positive cell lines. Little is known about their roles, but their high stability and easy quantification make these molecules potential biomarkers. OBJECTIVES: In this study a stem-loop MGB real-time RT-PCR has been used to detect and quantify miR-BART2-5p, miR-BART15 and miR-BART22 EBV miRNAs levels...
April 8, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28413835/mirna-signatures-can-predict-acute-liver-failure-in-hepatitis-e-infected-pregnant-females
#10
Nirupma Trehanpati, Rashi Sehgal, Sharda Patra, Ashish Vyas, Madavan Vasudevan, Ritu Khosla, Arshi Khanam, Guresh Kumar, Rakhi Maiwall, Gayatri Ramakrishna, Shyam Kottilil, Shiv Kumar Sarin
BACKGROUND: Acute viral hepatitis E (AVH-E) can often result in acute liver failure (ALF) during pregnancy. microRNAs serve as mediators in drug induced liver failure. We investigated their role as a biomarker in predicting ALF due to HEV (ALF-E). METHODS: We performed next generation sequencing and subsequent validation studies in PBMCs of pregnant (P) self limiting AVH-E, ALF due to HEV (ALF-E) and compared with AVH-E in non-pregnant (NP) females and healthy controls...
April 2017: Heliyon
https://www.readbyqxmd.com/read/28407805/revelation-of-mrnas-and-proteins-in-porcine-milk-exosomes-by-transcriptomic-and-proteomic-analysis
#11
Ting Chen, Qian-Yun Xi, Jia-Jie Sun, Rui-Song Ye, Xiao Cheng, Rui-Ping Sun, Song-Bo Wang, Gang Shu, Li-Na Wang, Xiao-Tong Zhu, Qing-Yan Jiang, Yong-Liang Zhang
BACKGROUND: Milk is a complex liquid that provides nutrition to newborns. Recent reports demonstrated that milk is enriched in maternal-derived exosomes that are involved in fetal physiological and pathological conditions by transmission of exosomal mRNAs, miRNAs and proteins. Until now, there is no such research relevant to exosomal mRNAs and proteins in porcine milk, therefore, we have attempted to investigate porcine milk exosomal mRNAs and proteins using RNA-sequencing and proteomic analysis...
April 13, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28401565/serum-and-exosomal-mir-122-and-mir-199a-as-a-biomarker-to-predict-therapeutic-efficacy-of-hepatitis-c-patients
#12
Xiaoyang Jiao, Zhicheng Fan, Huanzhu Chen, Ping He, Yazhen Li, Qiaoxin Zhang, Changwen Ke
AIM: MicroRNA (miRNA), which has been shown to correlate with liver functions, has been proposed as a new biomarker reflecting liver injury. The aim of the study was to investigate miRNA -122 (miR-122) and mir-RNA -199a (miR-199a) as a biomarker for predicting therapeutic efficacy in hepatitis C (HepC)patients. METHODS: 47 HepC 1b patients and 16 healthy subjects were enrolled in the study. Serum and exosomal mir-RNAs and other conventional biomarkers reflecting liver function were evaluated...
April 12, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28399134/an-improved-method-to-quantitate-mature-plant-microrna-in-biological-matrices-using-modified-periodate-treatment-and-inclusion-of-internal-controls
#13
Haiqiu Huang, Jamin Roh, Cindy D Davis, Thomas T Y Wang
MicroRNAs (miRNAs) ubiquitously exist in microorganisms, plants, and animals, and appear to modulate a wide range of critical biological processes. However, no definitive conclusion has been reached regarding the uptake of exogenous dietary small RNAs into mammalian circulation and organs and cross-kingdom regulation. One of the critical issues is our ability to assess and distinguish the origin of miRNAs. Although periodate oxidation has been used to differentiate mammalian and plant miRNAs, validation of treatment efficiency and the inclusion of proper controls for this method were lacking in previous studies...
2017: PloS One
https://www.readbyqxmd.com/read/28397375/elevation-of-circulating-microrna-levels-in-obese-children-compared-to-healthy-controls
#14
M D Thompson, M J Cismowski, M Serpico, A Pusateri, D R Brigstock
As childhood obesity increases, it is becoming important to understand the complications of obesity in children and develop novel biomarkers. Evidence indicates that microRNAs (miRNA) are dys-regulated in obesity and may serve as sensitive and specific circulating biomarkers. Non-alcoholic fatty liver disease (NAFLD) is a complication of obesity that ultimately requires a liver biopsy to determine disease severity. While studies have been conducted in adults, no study to date has examined circulating miRNAs in children with obesity and NAFLD...
April 10, 2017: Clinical Obesity
https://www.readbyqxmd.com/read/28394882/mir-4417-targets-tripartite-motif-containing-35-trim35-and-regulates-pyruvate-kinase-muscle-2-pkm2-phosphorylation-to-promote-proliferation-and-suppress-apoptosis-in-hepatocellular-carcinoma-cells
#15
Lijie Song, Weijie Zhang, Zhiwei Chang, Yanfeng Pan, Hong Zong, Qingxia Fan, Liuxing Wang
BACKGROUND MicroRNAs (miRNAs) are a class of small non-coding RNAs that are strongly involved in various types of carcinogenesis, including hepatocellular carcinoma (HCC). This study aimed to clarify whether miR-4417 promotes HCC growth by targeting TRIM35 and regulating PKM2 phosphorylation. MATERIAL AND METHODS Online software, including TargetScan and miRanda, was used to predict the potential target of miR-4417. Real-Time PCR (qRT-PCR) and Western blot assays were performed to detect the expression levels of mRNA and protein, respectively...
April 10, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28391277/lincrna-p21-inhibits-the-wnt-%C3%AE-catenin-pathway-in-activated-hepatic-stellate-cells-via-sponging-microrna-17-5p
#16
Fujun Yu, Yong Guo, Bicheng Chen, Liang Shi, Peihong Dong, Mengtao Zhou, Jianjian Zheng
BACKGROUND/AIMS: It is known that the activation of hepatic stellate cells (HSCs) is a pivotal step in the initiation and progression of liver fibrosis. Aberrant activated Wnt/β-catenin pathway is known to accelerate the development of liver fibrosis. microRNAs (miRNAs)-mediated Wnt/β-catenin pathway has been reported to be involved in HSC activation during liver fibrosis. However, whether long noncoding RNAs (lncRNAs) regulate Wnt/β-catenin pathway during HSC activation still remains unclear...
April 7, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28389526/regulation-of-ugt2b4-and-ugt2b7-by-mirnas-in-liver-cancer-cells
#17
Dhilushi Wijayakumara, Peter Ian Mackenzie, Ross A McKinnon, Dong Gui Hu, Robyn Meech
The transcriptional regulation of UGT2B4 and UGT2B7 has been well studied using liver cancer cell lines and recently post-transcriptional regulation of these two UGTs by miR-216b-5p was reported. The present study describes novel miRNA-mediated regulation of UGT2B4 and UGT2B7 in liver cancer cells. Bioinformatic analyses identified a putative miR-3664-3p binding site in the UGT2B7 3'-UTR, and binding sites for both miR-135a-5p and miR-410-3p in the UGT2B4 3'-UTR. These sites were functionally characterized using miRNA mimics and reporter constructs...
April 7, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28388830/the-release-of-microrna-122-during-liver-preservation-is-associated-with-early-allograft-dysfunction-and-graft-survival-after-transplantation
#18
Jasmijn W Selten, Cornelia J Verhoeven, Veerle Heedfeld, Henk P Roest, Jeroen de Jonge, Jacques Pirenne, Jos van Pelt, Jan N M IJzermans, Diethard Monbaliu, Luc J W van der Laan
INTRODUCTION: Early allograft dysfunction (EAD) after liver transplantation is associated with inferior graft survival. EAD is more prevalent in grafts from donation after circulatory death (DCD). However, accurate prediction of liver function remains difficult due to the lack of specific biomarkers. Recent experimental and clinical studies highlight the potential of hepatocyte-derived microRNAs (miRNAs) as sensitive, stable and specific biomarkers of liver injury. The aim of this study was to determine whether miRNAs in graft preservation fluid are predictive for EAD after clinical liver transplantation and in an experimental DCD model...
April 7, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28387905/mirna-370-acts-as-a-tumor-suppressor-via-the-downregulation-of-pim1-in-hepatocellular-carcinoma
#19
X-P Pan, H-X Wang, D-M Tong, Y Li, L-H Huang, C Wang
OBJECTIVE: Hepatocellular carcinoma (HCC) is a primary malignancy of liver. Nowadays HCC is one of the most common and aggressive malignancies worldwide. This study shows the aberrant up-regulation or down-regulation of miR-370correlates with the development and prognosis of different human malignancies including HCC. MATERIALS AND METHODS: The HCC cell lines were used as model cell lines and the anti-tumor effect of miR-370 in vitro were examined. The level of miR-370 in HCC cells was determined by qRT-PCR and restored in GC cells by using miR-370 mimic...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28382720/exosomes-derived-from-mir-181-5p-modified-adipose-derived-mesenchymal-stem-cells-prevent-liver-fibrosis-via-autophagy-activation
#20
Ying Qu, Qidi Zhang, Xiaobo Cai, Fei Li, Zhenzeng Ma, Mingyi Xu, Lungen Lu
Proliferating hepatic stellate cells (HSCs) respond to liver damage by secreting collagens that form fibrous scar tissue, which can lead to cirrhosis if in appropriately regulated. Advancement of microRNA (miRNA) hepatic therapies has been hampered by difficulties in delivering miRNA to damaged tissue. However, exosomes secreted by adipose-derived mesenchymal stem cells (ADSCs) can be exploited to deliver miRNAs to HSCs. ADSCs were engineered to overexpress miRNA-181-5p (miR-181-5p-ADSCs) to selectively home exosomes to mouse hepatic stellate (HST-T6) cells or a CCl4-induced liver fibrosis murine model and compared with non-targeting control Caenorhabditis elegans miR-67 (cel-miR-67)-ADSCs...
April 6, 2017: Journal of Cellular and Molecular Medicine
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