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miRNA,Hepatic fibrosis

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https://www.readbyqxmd.com/read/28634212/prolonged-darkness-reduces-liver-fibrosis-in-a-mouse-model-of-primary-sclerosing-cholangitis-by-mir-200b-down-regulation
#1
Nan Wu, Fanyin Meng, Tianhao Zhou, Yuyan Han, Lindsey Kennedy, Julie Venter, Heather Francis, Sharon DeMorrow, Paolo Onori, Pietro Invernizzi, Francesca Bernuzzi, Romina Mancinelli, Eugenio Gaudio, Antonio Franchitto, Shannon Glaser, Gianfranco Alpini
Melatonin therapy or prolonged exposure to complete darkness reduces biliary hyperplasia and liver fibrosis in bile-duct-ligated (BDL) rats; however, no information exists in primary sclerosing cholangitis (PSC). Thus, we aimed to determine the therapeutic effects of prolonged dark therapy or melatonin administration on hepatic fibrosis in the Mdr2(-/-) mouse model of PSC. Melatonin levels, biliary mass, liver fibrosis, angiogenesis and miR-200b expression were evaluated in wild-type and Mdr2(-/-) mice exposed to darkness or melatonin treatment or in male PSC patient samples and healthy controls...
June 20, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28623272/exosomes-derived-from-palmitic-acid-treated-hepatocytes-induce-fibrotic-activation-of-hepatic-stellate-cells
#2
Young-Sun Lee, So Yeon Kim, Eunjung Ko, Jun-Hee Lee, Hyon-Seung Yi, Yang Jae Yoo, Jihye Je, Sang Jun Suh, Young Kul Jung, Ji Hoon Kim, Yeon Seok Seo, Hyung Joon Yim, Won-Il Jeong, Jong Eun Yeon, Soon Ho Um, Kwan Soo Byun
Non-alcoholic fatty liver disease (NAFLD) is a dominant cause of chronic liver disease, but the exact mechanism of progression from simple steatosis to nonalcoholic steatohepatitis (NASH) remains unknown. Here, we investigated the role of exosomes in NAFLD progression. Exosomes were isolated from a human hepatoma cell line treated with palmitic acid (PA) and their miRNA profiles examined by microarray. The human hepatic stellate cell (HSC) line (LX-2) was then treated with exosome isolated from hepatocytes...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28586069/mir%C3%A2-203-inhibits-the-expression-of-collagen%C3%A2-related-genes-and-the-proliferation-of-hepatic-stellate-cells-through-a-smad3%C3%A2-dependent-mechanism
#3
Danping Hu, Yibing Hu, Wangwang Xu, Huanhuan Yu, Naibin Yang, Shunlan Ni, Rongquan Fu
Activation of hepatic stellate cells (HSCs) is a pivotal event during hepatic fibrogenesis. Activated HSCs are the main source of collagen and other extracellular matrix (ECM) components, and emerging antifibrotic therapies are aimed at preventing ECM synthesis and deposition. MicroRNAs (miRNAs) have been demonstrated to exert regulatory effects on HSC activation and ECM synthesis. In the present study, the HSC‑T6 rat hepatic stellate cell line was transiently transfected with a miRNA (miR)‑203 mimic, which is an artificial miRNA that enhances the function of miR‑203, with a miR‑203 inhibitor or with a scramble miRNA negative control...
June 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28544786/mir-122-modification-enhances-the-therapeutic-efficacy-of-adipose-tissue-derived-mesenchymal-stem-cells-against-liver-fibrosis
#4
Guohua Lou, Ying Yang, Feifei Liu, Bingjue Ye, Zhi Chen, Min Zheng, Yanning Liu
Mesenchymal stem cell (MSC) transplantation alone may be insufficient for treatment of liver fibrosis because of complicated histopathological changes in the liver. Given that miR-122 plays an essential role in liver fibrosis by negatively regulating the proliferation and transactivation of hepatic stellate cells (HSCs), this study investigated whether miR-122 modification can improve the therapeutic efficacy of adipose tissue-derived MSCs in treating liver fibrosis. MiR-122-modified AMSCs (AMSC-122) were constructed through lentivirus-mediated transfer of pre-miR-122...
May 24, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28538690/dysregulation-of-mirna-expression-in-cancer-associated-fibroblasts-cafs-and-its-consequences-on-the-tumor-microenvironment
#5
REVIEW
Maren Schoepp, Anda Jana Ströse, Jörg Haier
The tumor microenvironment, including cancer-associated fibroblasts (CAF), has developed as an important target for understanding tumor progression, clinical prognosis and treatment responses of cancer. Cancer cells appear to transform normal fibroblasts (NF) into CAFs involving direct cell-cell communication and epigenetic regulations. This review summarizes the current understanding on miR involvement in cancer cell-tumor environment/stroma communication, transformation of NFs into CAFs, their involved targets and signaling pathways in these interactions; and clinical relevance of CAF-related miR expression profiles...
May 24, 2017: Cancers
https://www.readbyqxmd.com/read/28536261/the-let-7-lin28-axis-regulates-activation-of-hepatic-stellate-cells-in-alcoholic-liver-injury
#6
Kelly McDaniel, Li Huang, Keisaku Sato, Nan Wu, Tami Annable, Tianhao Zhou, Sugeily Ramos-Lorenzo, Ying Wan, Qiaobing Huang, Heather Francis, Shannon Glaser, Hidekazu Tsukamoto, Gianfranco Alpini, Fanyin Meng
The let-7/lin28 axis is associated with the regulation of key cellular regulatory genes known as microRNAs (miRNAs) in different human disorders and cancer development. This study evaluated the role of the let-7/lin28 axis in regulating a mesenchymal phenotype of hepatic stellate cells in alcoholic liver injury. We identified that ethanol feeding significantly downregulated several members of the let-7 family in mouse liver, including let-7a and let-7b. Similarly, the treatment of human hepatic stellate cells (hHSCs) with lipopolysaccharide (LPS) and TGF-β significantly decreased the expressions of let-7a and let-7b...
May 23, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28534962/galectin%C3%A2-9-ameliorates-fulminant-liver-injury
#7
Tomoko Tadokoro, Asahiro Morishita, Teppei Sakamoto, Shintaro Fujihara, Koji Fujita, Shima Mimura, Kyoko Oura, Takako Nomura, Joji Tani, Hirohito Yoneyama, Hisakazu Iwama, Takashi Himoto, Toshiro Niki, Mitsuomi Hirashima, Tsutomu Masaki
Fulminant hepatitis is a severe liver disease resulting in hepatocyte necrosis. Galectin‑9 (Gal‑9) is a tandem‑repeat‑type galectin that has been evaluated as a potential therapeutic agent for various diseases that regulate the host immune system. Concanavalin A (ConA) injection into mice results in serious, immune‑mediated liver injury similar to human viral, autoimmune and fulminant hepatitis. The present study investigated the effects of Gal‑9 treatment on fulminant hepatitis in vivo and the effect on the expression of microRNAs (miRNAs), in order to identify specific miRNAs associated with the immune effects of Gal‑9...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28521446/candidate-mirnas-and-pathogenesis-investigation-for-hepatocellular-carcinoma-based-on-bioinformatics-analysis
#8
Wenbin Ding, Haixia Yang, Shenchu Gong, Weixiang Shi, Jing Xiao, Jinhua Gu, Yilang Wang, Bosheng He
The present study aimed to explore the mechanisms behind the development and progression of hepatocellular carcinoma (HCC) and identify information regarding HCC-related microRNAs (miRNAs) or marker genes for the gene therapy of HCC. Gene expression profile of GSE67882, generated from 4 hepatitis B virus infected HCC tissue samples (HCC group) and 8 chronic hepatitis B tissue samples with no fibrosis (control group) were downloaded from the Gene Expression Omnibus database. The differentially expressed miRNAs functional enrichment and pathway analyses of HCC were revealed, followed by transcription factor-miRNA interaction network construction and analyses...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28518142/mir-130a-3p-attenuates-activation-and-induces-apoptosis-of-hepatic-stellate-cells-in-nonalcoholic-fibrosing-steatohepatitis-by-directly-targeting-tgfbr1-and-tgfbr2
#9
Yang Wang, Jinghua Du, Xuemin Niu, Na Fu, Rongqi Wang, Yuguo Zhang, Suxian Zhao, Dianxing Sun, Yuemin Nan
Nonalcoholic fibrosing steatohepatitis is a uniform process that occurs throughout nonalcoholic fatty liver disease (NAFLD). MicroRNAs (miRNAs) have been shown to be involved in the biological processes, but the role and molecular mechanism of miRNAs in NAFLD are not entirely clear. In this study, we observed a significant reduction in the expression of miR-130a-3p in livers of a mouse model with fibrosis induced by a methionine-choline-deficient diet, of NAFLD patients, and in activated hepatic stellate cells (HSCs)...
May 18, 2017: Cell Death & Disease
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
#10
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...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28382720/exosomes-derived-from-mir-181-5p-modified-adipose-derived-mesenchymal-stem-cells-prevent-liver-fibrosis-via-autophagy-activation
#11
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
https://www.readbyqxmd.com/read/28372490/microrna-signatures-associated-with-thioacetamide-induced-liver-fibrosis-in-mice
#12
Jae-Sang Hong, Do-Hoon Lee, Ye Won Yook, Dokyun Na, Yu Jin Jang, Jong-Hoon Kim, Young Sik Lee
Multiple etiologies of liver injury are associated with fibrosis in which the key event is the activation of hepatic stellate cells (HSCs). Although microRNAs (miRNAs) are reportedly involved in fibrogenesis, the complete array of miRNA signatures associated with the disease has yet to be elucidated. Here, deep sequencing analysis revealed that compared to controls, 80 miRNAs were upregulated and 21 miRNAs were downregulated significantly in the thioacetamide (TAA)-induced mouse fibrotic liver. Interestingly, 58 of the upregulated miRNAs were localized to an oncogenic miRNA megacluster upregulated in liver cancer...
July 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28207963/nardilysin-promotes-hepatocellular-carcinoma-through-activation-of-signal-transducer-and-activator-of-transcription-3
#13
Yosuke Kasai, Kan Toriguchi, Etsuro Hatano, Kiyoto Nishi, Mikiko Ohno, Tomoaki Yoh, Keita Fukuyama, Takahiro Nishio, Masayuki Okuno, Keiko Iwaisako, Satoru Seo, Kojiro Taura, Masato Kurokawa, Makoto Kunichika, Shinji Uemoto, Eiichiro Nishi
Nardilysin (NRDC) is a metalloendopeptidase of the M16 family. We previously showed that NRDC activates inflammatory cytokine signaling, including interleukin-6-signal transducer and activator of transcription 3 (STAT3) signaling. NRDC has been implicated in the promotion of breast, gastric and esophageal cancer, as well as the development of liver fibrosis. In this study, we investigated the role of NRDC in the promotion of hepatocellular carcinoma (HCC), both clinically and experimentally. We found that NRDC expression was upregulated threefold in HCC tissue compared to the adjacent non-tumor liver tissue, which was confirmed by immunohistochemistry and western blotting...
May 2017: Cancer Science
https://www.readbyqxmd.com/read/28159835/mir-135a-5p-mediated-downregulation-of-protein-tyrosine-phosphatase-receptor-delta-is-a-candidate-driver-of-hcv-associated-hepatocarcinogenesis
#14
Nicolaas Van Renne, Armando Andres Roca Suarez, Francois H T Duong, Claire Gondeau, Diego Calabrese, Nelly Fontaine, Amina Ababsa, Simonetta Bandiera, Tom Croonenborghs, Nathalie Pochet, Vito De Blasi, Patrick Pessaux, Tullio Piardi, Daniele Sommacale, Atsushi Ono, Kazuaki Chayama, Masashi Fujita, Hidewaki Nakagawa, Yujin Hoshida, Mirjam B Zeisel, Markus H Heim, Thomas F Baumert, Joachim Lupberger
BACKGROUND AND AIMS: HCV infection is a leading risk factor of hepatocellular carcinoma (HCC). However, even after viral clearance, HCC risk remains elevated. HCV perturbs host cell signalling to maintain infection, and derailed signalling circuitry is a key driver of carcinogenesis. Since protein phosphatases are regulators of signalling events, we aimed to identify phosphatases that respond to HCV infection with relevance for hepatocarcinogenesis. METHODS: We assessed mRNA and microRNA (miRNA) expression profiles in primary human hepatocytes, liver biopsies and resections of patients with HCC, and analysed microarray and RNA-seq data from paired liver biopsies of patients with HCC...
February 3, 2017: Gut
https://www.readbyqxmd.com/read/28127890/microrna-profile-analysis-in-the-liver-fibrotic-tissues-of-chronic-hepatitis-b-patients
#15
Rong Chen, Jun Cheng Wu, Ting Liu, Ying Qu, Lun Gen Lu, Ming Yi Xu
OBJECTIVE: We aimed to identify the features of microRNA (miRNA) at different fibrotic stages in patients with hepatitis B virus (HBV)-related liver fibrosis. METHODS: Liver tissues were collected from 40 chronic hepatitis B (CHB) patients at fibrotic stages S0-4. Microarrays of miRNAs and genomic informatics analysis were performed. RESULTS: In total, 105 miRNAs were differentially expressed in fibrotic tissues (S1-4 groups) compared with no fibrotic tissues (S0 group; P < 0...
February 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28098912/microrna-9-limits-hepatic-fibrosis-by-suppressing-the-activation-and-proliferation-of-hepatic-stellate-cells-by-directly-targeting-mrp1-abcc1
#16
Jie Sun, Huanying Zhang, Liying Li, Lianfeng Yu, Lifang Fu
Liver fibrosis is a chronic liver disease characterized by the proliferation and activation of hepatic stellate cells (HSCs) and excessive deposition of extracellular matrix (ECM). Research suggests that microRNAs (miRNAs) are a new type of regulator of liver fibrosis. In the present study, we investigated the role of microRNA-9 (miR-9) in the process of liver fibrosis, as well as the underlying mechanism of action. Downregulated levels of miR-9 were found in fibrotic liver tissues and activated HSCs as detected by qRT-PCR; whereas, expression of multidrug resistance‑associated protein 1 (MRP1/ABCC1) was upregulated in the fibrotic liver tissues and activated HSCs...
January 17, 2017: Oncology Reports
https://www.readbyqxmd.com/read/27956809/disease-specific-mir-34a-as-diagnostic-marker-of-non-alcoholic-steatohepatitis-in-a-chinese-population
#17
COMPARATIVE STUDY
Xiao-Lin Liu, Qin Pan, Rui-Nan Zhang, Feng Shen, Shi-Yan Yan, Chao Sun, Zheng-Jie Xu, Yuan-Wen Chen, Jian-Gao Fan
AIM: To assess disease-specific circulating microRNAs (miRNAs) in non-alcoholic steatohepatitis (NASH) patients. METHODS: A total of 111 biopsy-proven non-alcoholic fatty liver disease (NAFLD) or chronic hepatitis B (CHB) patients and healthy controls from mainland China were enrolled to measure their serum levels of miR-122, -125b, -146b, -16, -21, -192, -27b and -34a. The correlations between serum miRNAs and histological features of NAFLD were determined. The diagnostic value of miRNA in NASH and significant fibrosis was analyzed and compared with that of cytokeratin-18 (CK-18), fibrosis-4 (FIB-4), and aspartate aminotransferase to platelet ratio index (APRI), respectively...
November 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27916556/micrornas-mediated-epithelial-mesenchymal-transition-in-fibrotic-diseases
#18
REVIEW
Xiao-Zhou Zou, Ting Liu, Zhi-Cheng Gong, Chang-Ping Hu, Zheng Zhang
MicroRNAs (miRNAs), a large family of small and highly conserved non-coding RNAs, regulate gene expression through translational repression or mRNA degradation. Aberrant expression of miRNAs underlies a spectrum of diseases including organ fibrosis. Recent evidence suggests that miRNAs contribute to organ fibrosis through mediating epithelial-mesenchymal transition (EMT). Alleviation of EMT has been proposed as a promising strategy against fibrotic diseases given the key role of EMT in fibrosis. miRNAs impact the expression of specific ligands, receptors, and signaling pathways, thus modulating EMT and consequently influencing fibrosis...
February 5, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27876854/mir-706-inhibits-the-oxidative-stress-induced-activation-of-pkc%C3%AE-taok1-in-liver-fibrogenesis
#19
Ruili Yin, Duo Guo, Shuxian Zhang, Xiuying Zhang
Oxidative stress induces the activation of liver fibrogenic cells (myofibroblasts), thus promoting the expression of fibrosis-related genes, leading to hepatic fibrogenesis. MicroRNAs (miRNAs) are a new class of small RNAs ~18-25 nucleotides in length involved in post-transcriptional regulation of gene expression. Wound-healing and remodeling processes in liver fibrosis have been associated with changes in hepatic miRNA expression. However, the role of miR-706 in liver fibrogenesis is currently unknown. In the present study, we show that miR-706 is abundantly expressed in hepatocytes...
November 23, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27855391/suppression-of-microrna-219-5p-activates-keratinocyte-growth-factor-to-mitigate-severity-of-experimental-cirrhosis
#20
Li Chen, Xiang Cui, Peng Li, Cong Feng, Lili Wang, Hao Wang, Xuan Zhou, Bo Yang, Faqin Lv, Tanshi Li
BACKGROUND/AIMS: Keratinocyte growth factor (KGF) plays a critical role in prevention of cirrhosis and enhancement of liver regeneration. However, the molecular regulation of KGF in liver is unknown. MicroRNAs (miRNAs) control the pathogenesis of cirrhosis, whereas the exact involved miRNAs and molecular signaling pathways remain ill-defined. Here we addressed these questions. METHODS: We examined the correlation of the levels of miR-219-5p and KGF in the liver biopsies from patients with liver diseases...
2016: Cellular Physiology and Biochemistry
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