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Jianjun Niu, Yong Lin, Pingguo Liu, Yiwen Yu, Chenghao Su, Xiaomin Wang
Long non-coding RNAs are involved with development and progression of cancer, and the advance of microarray technology allows the researchers to investigate the complete expression profile of lncRNA in various kinds of sample. We enrolled 5 male primary HCC cases with chronic HBV infection and the HCC and normal tissues have been obtained during the resection surgery. After total RNA extraction, the lncRNA microarray analysis was conducted to determine the lncRNA and mRNA expression signals. 612 lncRNAs and 1,064 mRNAs were significantly up-regulated in HCC tissue while 656 lncRNAs and 1,532 mRNAs were down-regulated in HCC tissues...
October 18, 2016: Oncotarget
Thomas Schluep, Jason Lickliter, James Hamilton, David L Lewis, Ching-Lung Lai, Johnson Yn Lau, Stephen A Locarnini, Robert G Gish, Bruce D Given
ARC-520 Injection, an RNA interference drug for the treatment of hepatitis B that targets cccDNA-derived viral mRNA transcripts with high specificity, effectively reduces the production of viral proteins and HBV DNA. In this phase I, randomized, double-blind, placebo-controlled study, 54 healthy volunteers (half male, half female) received a single, intravenous dose of 0.01-4.0 mg/kg ARC-520 Injection (N = 36) or placebo (N = 18). Assessments included safety, tolerability, pharmacokinetics, and pharmacodynamics (cytokines and complement)...
October 14, 2016: Clinical Pharmacology in Drug Development
Simon B Larsson, Sebastian Malmström, Charles Hannoun, Gunnar Norkrans, Magnus Lindh
BACKGROUND: Hepatitis B virus (HBV) DNA in serum of chronically infected patients declines by 3-4 log10 units at loss of HBe antigen (HBeAg) from serum. The mechanisms behind this decline, and the much smaller decline of surface antigen (HBsAg) levels, are still not well known. The aim of this study was to get a better understanding of this process by analysing both serum and intrahepatic markers of HBV replication. METHODS: Levels of HBV DNA and HBsAg in serum, and covalently closed circular DNA (cccDNA), pregenomic RNA (pgRNA) and S-RNA and total intrahepatic HBV DNA (ihDNA) in liver biopsies from 84 chronically infected patients (16 positive and 68 negative for HBeAg) were analysed...
December 9, 2015: Virology Journal
Jyun-Yuan Huang, Hung-Lin Chen, Chiaho Shih
Hepatitis B virus (HBV) is a major human pathogen. In this study, we found that miR-204 and miR-1236 were down-regulated in HBV-producing cells, and each could suppress HBV replication. Using a bioinformatic approach and a reporter assay, we identified miR-1236, which can reduce HBV replication and protein production by directly targeting at HBV specific mRNA. In contrast, miR-204 was identified by a microarray approach, and had no effect on HBV RNA and protein production. Surprisingly, miR-204 could inhibit HBV pregenomic RNA encapsidation and capsid assembly...
October 13, 2016: Scientific Reports
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