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miRNA liver

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https://www.readbyqxmd.com/read/28938566/screening-differential-circular-rna-expression-profiles-reveals-hsa_circ_0004018-is-associated-with-hepatocellular-carcinoma
#1
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...
August 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28932321/identification-and-characterization-of-interferon-signaling-related-micrornas-in-occult-hepatitis-b-virus-infection
#2
Yiying Wang, Peifu Zhu, Jing Qiu, Jie Wang, Huijuan Zhu, Yinwei Zhu, Lige Zhang, Jie Zhu, Xingxiang Liu, Chen Dong
BACKGROUND: Occult hepatitis B virus infection (OBI) is an important risk factor of liver cirrhosis and hepatocellular carcinoma. Type 1 interferon (IFN) signaling-related miRNAs were significantly associated with hepatitis B virus (HBV) infection. However, the characteristics of serum IFN signaling-related miRNAs in OBI remain unclear. Therefore, this study aimed to analyze the expression levels of serum IFN signaling-related miRNAs in OBI and to evaluate their potential values for OBI diagnosis...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/28929107/microrna-195-activates-hepatic-stellate-cells-in-vitro-by-targeting-smad7
#3
Li-Ying Song, Yu-Tao Ma, Cui-Fang Wu, Chun-Jiang Wang, Wei-Jin Fang, Shi-Kun Liu
BACKGROUND AND AIM: Aberrant activation of the TGF-β1/Smad pathway contributes to the activation of hepatic stellate cells (HSCs). MicroRNA-195 has been shown to regulate the activation of HSCs. The aim of this study was to investigate the role of miRNA-195 in HSCs activation. METHODS: A liver fibrotic rat model induced by diethylnitrosamine was established. Dual luciferase reporter assays were performed to verify that Smad7 was the target of miRNA-195. The expression levels of miR-195, Smad7, and α-SMA in HSC-T6 transfected, respectively, with miR-195 mimic, inhibitor, or control were measured by qRT-PCR...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28927074/mirna-346-promotes-proliferation-migration-and-invasion-in-liver-cancer
#4
Qiang Yu, Xia Yang, Weidong Duan, Chonghui Li, Ying Luo, Shichun Lu
Liver cancer primarily accounts for the majority of malignancies of the liver. MicroRNAs (miRNAs) are endogenous non-coding RNAs, which are important in tumorigenesis. Abnormal expression of microRNA-346 (miR-346) has been demonstrated in various types of human cancer, however, its expression and potential molecular mechanism in liver cancer remains to be elucidated. Expression levels of miR-346 in liver cancer cell lines were determined by quantitative polymerase chain reaction. The effect of miR-346 on proliferation was evaluated by an MTT assay; cell migration and invasion were evaluated by Transwell migration and invasion assays and target protein expression was determined by western blotting...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28925487/mir-370-functions-as-prognostic-marker-in-patients-with-hepatocellular-carcinoma
#5
X-P Pan, L-H Huang, X Wang
OBJECTIVE: Large body of evidence has shown that microRNAs (miRNAs) have the potential to serve as prognosis marker. This study is designed to investigate the expression of miR-370 in hepatocellular carcinoma (HCC) patients and to analyze its potential prognostic value. PATIENTS AND METHODS: Quantitative real-time quantitative PCR (qPCR) was performed to examine the miR-370 level in HCC tissue and matched normal tissue from 83 HCC patients. The correlation of miR-370 level in HCC tissue with the clinicopathological characteristics was analyzed...
August 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28922472/mirna-506-promotes-primary-biliary-cholangitis-like-features-in-cholangiocytes-and-immune-activation
#6
Oihane Erice, Patricia Munoz-Garrido, Javier Vaquero, Maria J Perugorria, Maite G Fernandez-Barrena, Elena Saez, Alvaro Santos-Laso, Ander Arbelaiz, Raul Jimenez-Agüero, Joaquin Fernandez-Irigoyen, Enrique Santamaria, Verónica Torrano, Arkaitz Carracedo, Meenakshisundaram Ananthanarayanan, Marco Marzioni, Jesus Prieto, Ulrich Beuers, Ronald P Oude Elferink, Nicholas F LaRusso, Luis Bujanda, Jose J G Marin, Jesus M Banales
Primary biliary cholangitis (PBC) is a chronic cholestatic liver disease associated with autoimmune phenomena targeting intrahepatic bile duct cells (cholangiocytes). Although PBC etiopathogenesis still remains obscure, development of anti-mitochondrial auto-antibodies against pyruvate dehydrogenase complex-E2 (PDC-E2) is a common feature. MicroRNA (miR) dysregulation occurs in liver and immune cells of PBC patients, but their functional relevance is largely unknown. We previously reported that miR-506 is overexpressed in PBC cholangiocytes and directly targets both Cl(-) /HCO3(-) anion exchanger 2 (AE2) and type III inositol 1,4,5-trisphosphate receptor (InsP3R3), leading to cholestasis...
September 18, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28919164/integrated-analysis-of-microrna-and-gene-expression-profiles-reveals-a-functional-regulatory-module-associated-with-liver-fibrosis
#7
Wei Chen, Wenshan Zhao, Aiting Yang, Anjian Xu, Huan Wang, Min Cong, Tianhui Liu, Ping Wang, Hong You
BACKGROUND: Liver fibrosis, characterized with the excessive accumulation of extracellular matrix (ECM) proteins, represents the final common pathway of chronic liver inflammation. Ever-increasing evidence indicates microRNAs (miRNAs) dysregulation have important implications in the different stages of liver fibrosis. However, our knowledge of miRNA-gene regulation details pertaining to such disease remains unclear. METHODS: The publicly available Gene Expression Omnibus (GEO) datasets of patients suffered from cirrhosis were extracted for integrated analysis...
September 14, 2017: Gene
https://www.readbyqxmd.com/read/28916633/systems-genetics-identifies-a-co-regulated-module-of-liver-micrornas-associated-with-plasma-ldl-cholesterol-in-murine-diet-induced-dyslipidemia
#8
Alisha R Coffey, Tangi L Smallwood, Jody Albright, Kunjie Hua, Matt Kanke, Daniel Pomp, Brian J Bennett, Praveen Sethupathy
Chronically altered levels of circulating lipids, termed dyslipidemia, is a significant risk factor for a number of metabolic and cardiovascular morbidities. MicroRNAs (miRNAs) have emerged as important regulators of lipid balance, have been implicated in dyslipidemia, and have been proposed as candidate therapeutic targets in lipid-related disorders including atherosclerosis. A major limitation of most murine studies of miRNAs in lipid metabolic disorders is that they have been performed in just one (or very few) inbred strains, such as C57BL/6...
September 15, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28916307/extreme-conservation-of-mirna-complements-in-opisthorchiids
#9
Vladimir Y Ovchinnikov, Viatcheslav A Mordvinov, Bastian Fromm
MicroRNAs (miRNAs) are important gene regulators that are key players in animal development and diseases. They are excreted in extracellular vesicles and because they were shown to be taken up by host cells they have been proposed as mediators of parasite-host communication, and potential biomarkers for the detection of parasitic infections from host blood. Consequently, it is crucial to precisely know the miRNA complements of medically important agents such as the liver flukes of the Opisthorchiidae. Using publicly available and new datasets we curated and reannotated the surprisingly small and variable miRNA complements previously described for Opisthorchis viverrini, O...
September 12, 2017: Parasitology International
https://www.readbyqxmd.com/read/28913356/expression-profiling-of-cellular-microrna-in-asymptomatic-hbsag-carriers-and-chronic-hepatitis-b-patients
#10
Xianliang Hou, Yan Liang, Jianing Chen, Yingfeng Wei, Ping Zeng, Lin Wang, Chong Lu, Hongyan Diao
BACKGROUND: MicroRNAs (miRNAs) may serve as potential molecular markers to predict liver injury resulting from chronic hepatitis B (CHB). In the present study, we want to study the expression profile and clinical significance of miRNAs at different stages of CHB virus infection. METHODS: Using miRNA microarray, we investigated the global expression profiles of cellular miRNA in asymptomatic hepatitis B antigen carriers (ASCs) and CHB patients, compared with healthy controls (HCs)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28901526/microrna%C3%A2-214-targets-wnt3a-to-suppress-liver-cancer-cell-proliferation
#11
Yang Yang, Zhenghao Zhao, Ni Hou, Yulong Li, Xiaofei Wang, Fei Wu, Ruifang Sun, Jia Han, Hongfei Sun, Tusheng Song, Chen Huang, Yuan Shao
MicroRNAs (miRNAs/miRs) are crucial molecules that act as tumor suppressor genes or oncogenes in human cancer progression. The dysregulation of miRNA expression has been detected in liver cancer. The present study aimed to explore the molecular mechanisms by which miR‑214 affects liver cancer cell proliferation. Reverse transcription‑quantitative polymerase chain reaction was used to determine the expression of miR‑214 in liver cancer cell lines and hepatocellular carcinoma (HCC) tissues. A luciferase reporter assay was performed to determine whether Wnt3a is a target gene of miR‑214...
September 13, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28900085/-expression-of-mir-21-and-its-acat1-armcx1-and-pten-target-genes-in-liver-of-female-rats-treated-with-ddt-and-benzo-a-pyrene
#12
M D Chanyshev, D S Ushakov, L F Gulyaeva
MiR-21 is the most studied cancer-promoting oncomiR, which target numerous tumor suppressor genes associated with proliferation, apoptosis, and invasion. Here we have studied the synthesis of miR-21 and quantified the mRNA and protein levels for miR-21 potential target genes, i.e., Acat1, Armcx1, and Pten, in the livers of female Wistar rats after their treatment with either 1,1-trichloro-2,2-di(4-chlorophenyl)ethane (DDT) or benzo[a]pyrene (BP). The most important finding appears to be the significant decrease in the miR-21 level the day after treatment with DDT with subsequent rebound...
July 2017: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28887510/mirna-target-network-analysis-identifies-potential-biomarkers-for-traditional-chinese-medicine-tcm-syndrome-development-evaluation-in-hepatitis-b-caused-liver-cirrhosis
#13
Yamin Liu, Mei Wang, Yunquan Luo, ChenJian Chen, Yiyu Lu, Yulin Shi, Chenchen Tang, Qianmei Zhou, Hui Zhang, Yuanjia Hu, Shibing Su, Qilong Chen
Hepatitis B is one of most etiologies of Liver cirrhosis in China, and clinically lacks the effective strategy for Hepatitis B caused cirrhosis (HBC) therapy. As a complementary and alternative medicine, Chinese Traditional Medicine (TCM) has special therapeutic effects for HBC. Here, we focus on the evolution process of HBC TCM syndromes, which was from Excessive (Liver-Gallbladder Dampness-Heat Syndrome, LGDHS) to Deficient (Liver-Kidney Deficiency Syndrome, LKYDS) via Excessive-Deficient syndrome (Liver-Depression and Spleen-Deficiency Syndrome, LDSDS)...
September 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28886115/androgen-receptor-mediated-downregulation-of-microrna-221-and-222-in-castration-resistant-prostate-cancer
#14
Bin Gui, Chen-Lin Hsieh, Philip W Kantoff, Adam S Kibel, Li Jia
MicroRNAs (miRNAs) play important roles in cancer formation and progression by suppressing the production of key functional proteins at the post-transcriptional level in a sequence-specific manner. While differential expression of miRNAs is widely observed in cancers including prostate cancer (PCa), how these miRNAs are transcriptionally regulated is largely unknown. MiRNA-221 and miRNA-222 (miR-221/-222) are well-established oncogenes and overexpressed in breast, liver, pancreas, and lung cancer, but their expression and biological functions in PCa remain controversial...
2017: PloS One
https://www.readbyqxmd.com/read/28886078/microrna-223-and-microrna-21-in-peripheral-blood-b-cells-associated-with-progression-of-primary-biliary-cholangitis-patients
#15
Xiaomei Wang, Xiaoyu Wen, Jingjing Zhou, Yue Qi, Ruihong Wu, Yao Wang, Yiwen Kui, Rui Hua, Qinglong Jin
Recently, there is ample evidence suggesting the important role of microRNAs (miRNAs) in autoimmune diseases via modulating B cells function. Primary biliary cholangitis (PBC) is a progressive immune-mediated liver disease with unclear pathogenic mechanism. Whether the miRNA in peripheral B cells of PBC involve the mechanisms of pathology and progression is not known. The present study explores miRNA deregulation in peripheral B-cell of PBC from stage I to IV and healthy controls. Peripheral B cells were obtained from 72 PBC patients (stage I, n = 17; stage II, n = 23; stage III, n = 16; stage IV, n = 16) and 15 healthy controls...
2017: PloS One
https://www.readbyqxmd.com/read/28883647/circulating-mir-122-and-mir-200a-as-biomarkers-for-fatal-liver-disease-in-art-treated-hiv-1-infected-individuals
#16
Daniel D Murray, Kazuo Suzuki, Matthew Law, Jonel Trebicka, Jacquie Neuhaus Nordwall, Margaret Johnson, Michael J Vjecha, Anthony D Kelleher, Sean Emery
Liver disease is one of the main contributors to the increased levels of morbidity and mortality seen in the HIV-1-infected, ART-treated population. Circulating miRNAs, particularly those located inside extracellular vesicles, are seen as promising biomarkers for a number of human disease conditions, including liver-related diseases. Here, we show that serum levels of miR-122 and miR-200a are greater in HIV/HCV co-infected individuals compared to HIV-1 mono-infected individuals. We also show that miR-122 and miR-200a are elevated in ART-treated, HIV-1-infected individuals prior to the development of fatal liver disease, suggesting that these miRNA may have some potential clinical utility as biomarkers...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28878865/micrornas-and-clinical-implications-in-hepatocellular-carcinoma
#17
Amal Ahmed Mohamed, Zainab A Ali-Eldin, Tamer A Elbedewy, Magdy El-Serafy, Fatma A Ali-Eldin, Hossameldin AbdelAziz
AIM: To assess the role of some circulating miRNAs (miR-23a, miR-203, miR338, miR-34, and miR-16) as tumor markers for diagnosis of hepatocellular carcinoma (HCC). METHODS: One hundred and seventy-one subjects were enrolled, 57 patients with HCC, 57 patients with liver cirrhosis (LC) and 57 healthy subjects as control group. Severity of liver disease was assessed by Child Pugh score. Tumor staging was done using Okuda staging system. Quantification of Micro RNA (miR-23a, miR-203, miR338, miR-34, and miR-16) was performed...
August 18, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28878257/molecular-mechanisms-governing-microrna-125a-expression-in-human-hepatocellular-carcinoma-cells
#18
Nicoletta Potenza, Marta Panella, Filomena Castiello, Nicola Mosca, Elena Amendola, Aniello Russo
MicroRNA-125a-5p (miR-125a) is a vertebrate homolog of lin-4, the first discovered microRNA, and plays a fundamental role in embryo development by downregulating Lin-28 protein. MiR-125a is also expressed in differentiated cells where it generally acts as an antiproliferative factor by targeting membrane receptors or intracellular transductors of mitogenic signals. MiR-125a expression is downregulated in several tumors, including hepatocellular carcinoma (HCC) where it targets sirtuin-7, matrix metalloproteinase-11, VEGF-A, Zbtb7a, and c-Raf...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28874710/effects-of-toxic-microcystis-aeruginosa-on-the-silver-carp-hypophthalmichtys-molitrix-revealed-by-hepatic-rna-seq-and-mirna-seq
#19
Menghong Hu, Xiancheng Qu, Lisha Pan, Chunxue Fu, Peixuan Jia, Qigen Liu, Youji Wang
High-throughput sequencing was applied to analyze the effects of toxic Microcystis aeruginosa on the silver carp Hypophthalmichthys molitrix. Silver carps were exposed to two cyanobacteria species (toxic and non-toxic) for RNA-seq and miRNA-seq analysis. RNA-seq revealed that the liver tissue contained 105,379 unigenes. Of these genes, 143 were significantly differentiated, 82 were markedly up-regulated, and 61 were remarkably down-regulated. GO term enrichment analysis indicated that 35 of the 154 enriched GO terms were significantly enriched...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28874536/microrna-277-targets-insulin-like-peptides-7-and-8-to-control-lipid-metabolism-and-reproduction-in-aedes-aegypti-mosquitoes
#20
Lin Ling, Vladimir A Kokoza, Changyu Zhang, Emre Aksoy, Alexander S Raikhel
Hematophagous female mosquitoes transmit numerous devastating human diseases, including malaria, dengue fever, Zika virus, and others. Because of their obligatory requirement of a vertebrate blood meal for reproduction, these mosquitoes need a lot of energy; therefore, understanding the molecular mechanisms linking metabolism and reproduction is of particular importance. Lipids are the major energy store providing the fuel required for host seeking and reproduction. They are essential components of the fat body, a metabolic tissue that is the insect analog of vertebrate liver and adipose tissue...
September 19, 2017: Proceedings of the National Academy of Sciences of the United States of America
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