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https://www.readbyqxmd.com/read/28314211/the-role-of-kupffer-cells-in-hepatic-diseases
#1
REVIEW
Peizhi Li, Kun He, Jinzheng Li, Zuojin Liu, Jianping Gong
Kupffer cells (KCs) constitute 80-90% of the tissue macrophages present in the body. Essential to innate and adaptive immunity, KCs are responsible for the swift containment and clearance of exogenous particulates and immunoreactive materials which are perceived as foreign and harmful to the body. Similar to other macrophages, KCs also sense endogenous molecular signals that may result from perturbed homeostasis of the host. KCs have been implicated in host defense and the pathogenesis of various hepatic diseases, including endotoxin tolerance, liver transplantation, nonalcoholic fatty liver disease, and alcoholic liver disease...
March 14, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28302418/lncrna-atb-microrna-200a-%C3%AE-catenin-regulatory-axis-involved-in-the-progression-of-hcv-related-hepatic-fibrosis
#2
Na Fu, Su-Xian Zhao, Ling-Bo Kong, Jing-Hua Du, Wei-Guang Ren, Fang Han, Qing-Shan Zhang, Wen-Cong Li, Cui Po, Rong-Qi Wang, Yu-Guo Zhang, Yue-Min Nan
OBJECTIVE(S): Long noncoding RNAs (lncRNAs)-activated by transforming growth factor beta (lncRNA-ATB) is known to be involved in the invasion of hepatocellular carcinoma by regulating target gene miR-200a. However, the role and molecular mechanisms of lncRNA-ATB/miR-200a in HCV-related liver fibrosis remains unclear. In this study, we examined the expression of lncRNA-ATB/miR-200a, and their target gene β-Catenin in liver tissues of HCV patients and hepatic stellate cells (HSCs) to elucidate the possible role of lncRNA-ATB/miR-200a axis in HSC activation and development of liver fibrosis...
March 13, 2017: Gene
https://www.readbyqxmd.com/read/28302149/identification-and-interaction-analysis-of-key-genes-and-micrornas-in-hepatocellular-carcinoma-by-bioinformatics-analysis
#3
Tong Mou, Di Zhu, Xufu Wei, Tingting Li, Daofeng Zheng, Junliang Pu, Zhen Guo, Zhongjun Wu
BACKGROUND: Hepatocellular carcinoma (HCC) is the most common liver malignancy worldwide. However, present studies of its multiple gene interaction and cellular pathways still could not explain the initiation and development of HCC perfectly. To find the key genes and miRNAs as well as their potential molecular mechanisms in HCC, microarray data GSE22058, GSE25097, and GSE57958 were analyzed. METHODS: The microarray datasets GSE22058, GSE25097, and GSE57958, including mRNA and miRNA profiles, were downloaded from the GEO database and were analyzed using GEO2R...
March 16, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28295449/hepatic-mtdna-tlr9-microrna-223-forms-a-negative-feedback-loop-to-limit-neutrophil-over-activation-and-acetaminophen-hepatotoxicity
#4
Yong He, Dechun Feng, Man Li, Yanhang Gao, Teresa Ramirez, Haixia Cao, Seung-Jin Kim, Yang Yang, Yan Cai, Cynthia Ju, Hua Wang, Jun Li, Bin Gao
Acetaminophen (APAP) overdose is a leading cause of acute liver failure worldwide, in which mitochondrial DNA (mtDNA) released by damaged hepatocytes activates neutrophils via the binding of TLR9, further aggravating liver injury. Here, we demonstrated that mtDNA/TLR9 also activates a negative feedback pathway via the induction of microRNA-223 (miR-223) to limit neutrophil over-activation and liver injury. After injection of APAP in mice, levels of miR-223, the most abundant miRNAs in neutrophils, were highly elevated in neutrophils...
March 13, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28292253/the-adeno-associated-virus-a-safe-and-effective-vehicle-for-liver-specific-gene-therapy-of-inherited-and-non-inherited-diseases
#5
Kai Yan Mak, Indu G Rajapaksha, Peter W Angus, Chandana B Herath
The first human adeno-associated virus (AAV) was originally discovered in 1960s as a contaminant of adenovirus stocks preparation and thus it had not been of medical interest. Throughout last three decades AAV has gained popularity to be used in gene therapy, mainly due to its replicative defectiveness and lack of pathogenicity in human. In addition, the ability to mediate a stable and long-term expression in both non-dividing and dividing cells with specific tissue tropism makes AAV as one of the most promising candidates for therapeutic gene transfer to treat many genetic as well as non-genetic disorders...
March 14, 2017: Current Gene Therapy
https://www.readbyqxmd.com/read/28291769/downregulation-of-mir-33a-5p-in-hepatocellular-carcinoma-a-possible-mechanism-for-chemotherapy-resistance
#6
Wei Meng, Yan Tai, Hui Zhao, Binsheng Fu, Tong Zhang, Wei Liu, Hua Li, Yang Yang, Qi Zhang, Yuliang Feng, Guihua Chen
BACKGROUND Multi-drug resistance is one of the major problems limiting the efficacy of cisplatin (CDDP) in treatment of hepatocellular carcinoma (HCC), and abnormal microRNA (miRNA) expression in drug-resistant cell lines plays an important role in liver cancer chemotherapy resistance. MATERIAL AND METHODS We established stable Hep3B and 97L HCC cell strains resistant to CDDP, both in vitro and in vivo. A combination of microRNA microarray and RT-qPCR experiments were used to screen differentially expressed miRNAs in HCC cell strains...
March 14, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28288167/erythropoietin-epo-ameliorates-obesity-and-glucose-homeostasis-by-promoting-thermogenesis-and-endocrine-function-of-classical-brown-adipose-tissue-bat-in-diet-induced-obese-mice
#7
Kazuki Kodo, Satoru Sugimoto, Hisakazu Nakajima, Jun Mori, Ikuyo Itoh, Shota Fukuhara, Keiichi Shigehara, Taichiro Nishikawa, Kitaro Kosaka, Hajime Hosoi
Erythropoietin (EPO), clinically used as a hematopoietic drug, has received much attention due to its nonhematopoietic effects. EPO reportedly has beneficial effects on obesity and diabetes mellitus. We investigated whether interscapular brown adipose tissue (iBAT: main part of classical BAT) could play a role in EPO's anti-obesity and anti-diabetic effects in diet-induced obese mice. Four-week-old male C57BL/6J mice were fed a high-fat diet (HFD-Con), and half were additionally given an intraperitoneal injection of recombinant human EPO (200 IU/kg) (HFD-EPO) thrice a week for four weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28286290/the-effect-of-the-hepatitis-c-virus-hcv-ns3-protein-on-the-expression-of-mir-150-mir-199a-mir-335-mir-194-and-mir-27a
#8
Sayyad Khanizadeh, Mehrdad Ravanshad, Seyed Younes Hosseini, Parivash Davoodian, Mohammad Almasian, Zahra Khanlari
Hepatitis C virus (HCV) infection is considered one of the most important causes of chronic liver diseases. Many reports have shown that the proteins of the HCV via interactions with gene expression regulatory networks such as cellular pathways and microRNAs can contribute to the development of chronic liver diseases. The present study aimed to investigate the effects of the HCV NS3 protein on the expression of miR-150 miR-199a, miR-335, miR-194, miR-27a in a cell culture model. Plasmids expressing the full length of the HCV NS3 protein were transfected into the LX-2 cell line, while at the same time a plasmid expressing empty GFP (green fluorescent protein) was used as a negative control group...
March 9, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28285099/mir-1247-blocks-sox9-mediated-regeneration-in-alcohol-and-fibrosis-associated-acute-kidney-injury-in-mice
#9
Kostiantyn Dreval, Aline de Conti, Shinji Furuya, Frederick A Beland, Ivan Rusyn, Igor P Pogribny
Excessive alcohol consumption has a significant impact on human health and is a major public health problem worldwide. One of the consequences of long-term excessive alcohol consumption is cellular injury in almost all organs and tissues, with acute kidney injury (AKI) being one of the most common pathological manifestations. In the present study, using a mouse model of alcoholic liver fibrosis-associated AKI induced by a combined treatment with carbon tetrachloride (CCl4) and ethanol and resembling pathological features of AKI in human alcoholic liver fibrosis, we demonstrate alterations in histone modifications in the kidneys and, importantly, in the promoter region of the over-expressed SRY (sex determining region Y)-box 9 (Sox9) gene...
March 8, 2017: Toxicology
https://www.readbyqxmd.com/read/28284064/aberrant-expression-of-microrna-induced-by-high-fructose-diet-implications-in-the-pathogenesis-of-hyperlipidemia-and-hepatic-insulin-resistance
#10
Neetu Sud, Hanyuan Zhang, Kaichao Pan, Xiao Cheng, Juan Cui, Qiaozhu Su
Fructose is a highly lipogenic sugar that can alter energy metabolism and trigger metabolic disorders. In the current study, microRNAs (miRNAs) altered by a high-fructose diet were comprehensively explored to elucidate their significance in the pathogenesis of chronic metabolic disorders. miRNA expression profiling using small noncoding RNA sequencing revealed that 19 miRNAs were significantly upregulated and 26 were downregulated in the livers of high-fructose-fed mice compared to chow-fed mice. Computational prediction and functional analysis identified 10 miRNAs, miR-19b-3p, miR-101a-3p, miR-30a-5p, miR-223-3p, miR-378a-3p, miR-33-5p, miR-145a-3p, miR-128-3p, miR-125b-5p and miR-582-3p, assembled as a regulatory network to potentially target key genes in lipid and lipoprotein metabolism and insulin signaling at multiple levels...
February 20, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28282565/genome-wide-identification-and-characterization-of-conserved-and-novel-micrornas-in-grass-carp-ctenopharyngodon-idella-by-deep-sequencing
#11
Wangbao Gong, Yong Huang, Jun Xie, Guangjun Wang, Deguang Yu, Xihong Sun
MicroRNAs (miRNAs) are post-transcriptional regulators which bind to target to regulate protein expression by repressing translation or promoting degradation of the target mRNA. Studies have shown that deep sequencing is a powerful tool for the identification of miRNAs, and it is believed that may more miRNAs remain to be discovered in grass carp. In the present study, a pool of equal amounts of RNA obtained from 8 different adult grass carp tissues (spleen, liver, muscle, kidney, skin, testis, gut and heart) was sequenced using deep sequencing technology...
March 2, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28280952/involvement-of-the-mir-462-731-cluster-in-hypoxia-response-in-megalobrama-amblycephala
#12
Cui-Hong Huang, Nan Chen, Chun-Xiao Huang, Bao Zhang, Meng Wu, Lei He, Hong Liu, Rong Tang, Wei-Min Wang, Huan-Ling Wang
MicroRNAs (miRNAs) are non-coding small RNAs showing both evolutionarily conserved and unique features and are involved in nearly all biological processes. In the present study, the role played by miR-462/731 cluster miRNAs in hypoxia response in Megalobrama amblycephala, an important freshwater fish, was investigated. The M. amblycephala miR-462/731 cluster locus and their 5' flanking sequences were sequenced and analyzed. In M. amblycephala and other teleost fish species, the mature sequences of miR-462 and miR-731 were identical and hypoxia-responsive elements (HREs) were identified upstream of the miR-462/731 loci...
March 9, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28275977/arsenic-exposure-and-type-2-diabetes-micrornas-as-mechanistic-links
#13
REVIEW
Rowan Beck, Miroslav Styblo, Praveen Sethupathy
PURPOSE OF REVIEW: The goal of this review is to delineate the following: (1) the primary means of inorganic arsenic (iAs) exposure for human populations, (2) the adverse public health outcomes associated with chronic iAs exposure, (3) the pathophysiological connection between arsenic and type 2 diabetes (T2D), and (4) the incipient evidence for microRNAs as candidate mechanistic links between iAs exposure and T2D. RECENT FINDINGS: Exposure to iAs in animal models has been associated with the dysfunction of several different cell types and tissues, including liver and pancreatic islets...
March 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28275578/micrornas-for-the-prediction-of-early-response-to-sorafenib-treatment-in-human-hepatocellular-carcinoma
#14
Naoshi Nishida, Tadaaki Arizumi, Satoru Hagiwara, Hiroshi Ida, Toshiharu Sakurai, Masatoshi Kudo
BACKGROUND: Several studies suggest the role of circulating microRNAs (miRNAs) as biomarkers of hepatocellular carcinoma (HCC). However, the serum miRNA profile associated with the response to sorafenib remains to be elucidated. The aim of this study was to clarify the specific miRNAs in serum that could predict the early response of HCC to sorafenib treatment. SUMMARY: Analyzing the sera from 16 HCC patients, we selected five miRNAs that showed differences in serum levels between patients with and without tumor responses among 179 known secretory miRNAs by using locked nucleic acid probe-based quantitative PCR...
February 2017: Liver Cancer
https://www.readbyqxmd.com/read/28272709/expression-of-microrna-122-and-microrna-22-in-hbv-related-liver-cancer-and-the-correlation-with-clinical-features
#15
D-D Qiao, J Yang, X-F Lei, G-L Mi, S-L Li, K Li, C-Q Xu, H-L Yang
OBJECTIVE: MicroRNAs (miR) participate in cell proliferation, apoptosis and transformation, as they can regulate gene expression and intracellular signal transduction for various physiological processes. MiR-122 and miR-22 are known to be related with occurrence and progression of hepatitis B virus (HBV)-related hepatocellular cancer (HCC). This study recruited HBV-related HCC patients, whose expression levels of miR-122 and miR-22 were determined to analyze the correlation with clinical and pathological indexes...
February 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28271982/hepatic-mir-301a-as-a-liver-transplant-rejection-biomarker-and-its-role-for-interleukin-6-production-in-hepatocytes
#16
Toshiaki Nakano, I-Hsuan Chen, Shigeru Goto, Chia-Yun Lai, Hui-Peng Tseng, Li-Wen Hsu, King-Wah Chiu, Chih-Che Lin, Chih-Chi Wang, Yu-Fan Cheng, Chao-Long Chen
Acute rejection (AR) of liver transplantation remains a formidable challenge for diagnostic medicine and biomarker discovery. We characterized AR-related microRNAs (miRNAs) and the underlying AR mechanisms in liver transplantation. Using a rat model of orthotopic liver transplantation (OLT) as well as microarrays, we compared the miRNA expression profiles between naive and AR livers on day 7 after OLT with short- (<14 days, donor Dark Agouti [DA] liver into Lewis [LEW] recipient) and long-term (>60 days, donor DA liver into Piebald Virol Glaxo [PVG] recipient) survival fates...
January 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28269758/microrna31-ndrg3-regulation-axes-are-essential-for-hepatocellular-carcinoma-survival-and-drug-resistance
#17
Zhonghai Du, Shuxian Niu, Xiaoyu Xu, Qinghui Xu
BACKGROUNDS: Hepatocellular carcinoma (HCC) is an epithelial cancer that originates from hepatocytes and it is the most common primary malignant tumor of the liver. Till now the prognosis of HCC patients is generally poor. The molecular mechanism giving rise to HCC development and recurrence is still largely unknown. MicroRNA-31 (miR-31) is among the most commonly altered microRNAs in human cancers, and alternations of miR-31 expression were reported to play pivotal roles in tumorigenesis and tumor progression...
February 27, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28267418/microrna-125b-5p-mediates-post-transcriptional-regulation-of-hepatitis-b-virus-replication-via-the-lin28b-let-7-axis
#18
Wanyu Deng, Xiaoyong Zhang, Zhiyong Ma, Yong Lin, Mengji Lu
MicroRNAs (miRNAs) are able to modulate hepatitis B virus (HBV) replication and play an important role in the pathogenesis of HBV infection. Recently, we have identified that serum miR-125b-5p level correlated with HBV DNA levels and liver necroinflammation. In the present study, we addressed how miR-125b-5p regulated HBV replication at the different steps, inclduing viral transcription, assembly, and virion production and investigated the underlying mechanisms. We found that miR-125b-5p overexpression increased HBV replication without altering HBV transcription...
March 7, 2017: RNA Biology
https://www.readbyqxmd.com/read/28262692/mir-139-5p-as-a-novel-serum-biomarker-for-recurrence-and-metastasis-in-colorectal-cancer
#19
Jinsei Miyoshi, Shusuke Toden, Kazuhiro Yoshida, Yuji Toiyama, Steven R Alberts, Masato Kusunoki, Frank A Sinicrope, Ajay Goel
Approximately 30-50% of colorectal cancer (CRC) patients who undergo curative resection subsequently experience tumor recurrence or metastasis. Although microRNAs (miRNAs) are a class of small noncoding RNAs frequently deregulated in various human malignancies, it remains unknown if these can help predict recurrence and metastasis in CRC patients. MiRNAs were initially screened using miRNA-microarray and miRNA-seq datasets with or without recurrence. Candidate miRNAs were then tested in two independent cohorts of 111 stage II/III and 139 stage I-III CRC patients, as well as serum samples and matched primary and metastatic liver tissues...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28259929/expression-profiles-and-circulation-dynamics-of-rat-mesenteric-lymph-micrornas
#20
Wakako Sakamoto, Tomohiko Masuno, Hiroyuki Yokota, Toshihiro Takizawa
Mesenteric lymph is vital for immune cell trafficking and intestinal fluid and chyle transport, which aid homeostatic maintenance. There have been few reports investigating the profiles and circulatory dynamics of mesenteric lymph microRNAs (miRNAs). The present study aimed to provide a comprehensive analysis of miRNAs in normal rodent mesenteric lymph. Reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR)‑based array analysis was performed to examine the expression levels of 375 miRNAs in normal rat mesenteric lymph...
February 28, 2017: Molecular Medicine Reports
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