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https://www.readbyqxmd.com/read/28920619/a-novel-method-for-identifying-potential-disease-related-mirnas-via-a-disease-mirna-target-heterogeneous-network
#1
Liang Ding, Minghui Wang, Dongdong Sun, Ao Li
MicroRNAs (miRNAs), as a kind of important small endogenous single-stranded non-coding RNA, play critical roles in a large number of human diseases. However, the currently known experimental verifications of the disease-miRNA associations are still rare and experimental identification is time-consuming and labor-intensive. Accordingly, identifying potential disease-related miRNAs to help people understand the pathogenesis of complex diseases has become a hot topic. In this study, we take advantage of known disease-miRNA associations combined with a large number of experimentally validated miRNA-target associations, and further develop a novel disease-miRNA-target heterogeneous network for identifying disease-related miRNAs...
September 18, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28918389/glucagon-like-peptide-1-receptor-agonists-for-the-management-of-obesity-and-non-alcoholic-fatty-liver-disease-a-novel-therapeutic-option
#2
REVIEW
Gauri Dhir, Kenneth Cusi
Obesity is a major risk factor for the development of type 2 diabetes mellitus (T2DM), and is associated with a cluster of metabolic factors that lead to poor cardiovascular outcomes. In non-alcoholic fatty liver disease (NAFLD), liver fat (triglyceride) accumulation closely mirrors adipose tissue dysfunction and insulin resistance in obesity and T2DM. It is now recognized as the most common chronic liver disease in Westernized societies, often progressing to more severe forms of the disease such as nonalcoholic steatohepatitis (NASH), or cirrhosis and hepatocellular carcinoma...
September 15, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28915586/hepatitis-c-virus-core-protein-targets-4e-bp1-expression-and-phosphorylation-and-potentiates-myc-induced-liver-carcinogenesis-in-transgenic-mice
#3
Cosette Abdallah, Charlène Lejamtel, Nassima Benzoubir, Serena Battaglia, Nazha Sidahmed-Adrar, Christophe Desterke, Matthieu Lemasson, Arielle R Rosenberg, Didier Samuel, Christian Bréchot, Delphine Pflieger, François Le Naour, Marie-Françoise Bourgeade
Hepatitis C virus (HCV) is a leading cause of liver diseases including the development of hepatocellular carcinoma (HCC). Particularly, core protein has been involved in HCV-related liver pathologies. However, the impact of HCV core on signaling pathways supporting the genesis of HCC remains largely elusive. To decipher the host cell signaling pathways involved in the oncogenic potential of HCV core, a global quantitative phosphoproteomic approach was carried out. This study shed light on novel differentially phosphorylated proteins, in particular several components involved in translation...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28914862/-liver-diseases-the-pathogenetic-role-of-the-gut-microbiome-and-the-potential-of-treatment-for-its-modulation
#4
K A Aitbaev, I T Murkamilov, V V Fomin
The paper gives an update on the role of the gut microbiome (GM) in the development of nonalcoholic fatty liver disease, nonalcoholic steatohepatitis, alcoholic liver disease, liver cirrhosis (LC), and its complications, such as hepatic encephalopathy (HE) and hepatocellular carcinoma (HCC), and discusses the possibilities of its correction with prebiotics, probiotics, synbiotics, antibiotics, and fecal microbiota transplantation (FMT). The pathophysiology of the liver diseases in question demonstrates some common features that are characterized by pathogenic changes in the composition of the gastrointestinal tract microflora, by intestinal barrier impairments, by development of endotoxemia, by increased liver expression of proinflammatory factors, and by development of liver inflammation...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28910694/an-epidemiologic-perspective-on-the-stem-cell-hypothesis-in-human-carcinogenesis
#5
REVIEW
David Schottenfeld
BACKGROUND: Tomasetti and Vogelstein have hypothesized that the patterns of cancer incidence in various cells and tissues are highly correlated with the estimated lifetime number of stem cell divisions. The authors reviewed the risks in tissues of 17 types of cancer from the United States and 69 additional countries. Positive correlations were observed consistently between the tissue - specific cancer incidence and the estimated lifetime number of stem cell divisions. The authors concluded that approximately two-thirds of global cancer incidence may be attributed to random DNA replication errors...
September 11, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28905413/simultaneous-acquisition-sequence-for-improved-hepatic-pharmacokinetics-quantification-accuracy-saha-for-dynamic-contrast-enhanced-mri-of-liver
#6
Jia Ning, Yongliang Sun, Sheng Xie, Bida Zhang, Feng Huang, Peter Koken, Jouke Smink, Chun Yuan, Huijun Chen
PURPOSE: To propose a simultaneous acquisition sequence for improved hepatic pharmacokinetics quantification accuracy (SAHA) method for liver dynamic contrast-enhanced MRI. METHODS: The proposed SAHA simultaneously acquired high temporal-resolution 2D images for vascular input function extraction using Cartesian sampling and 3D large-coverage high spatial-resolution liver dynamic contrast-enhanced images using golden angle stack-of-stars acquisition in an interleaved way...
September 14, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28903404/tumor-specific-hepatic-stellate-cells-thscs-induces-digr2-expression-in-dendritic-cells-to-inhibit-t-cells
#7
Yun-Hong Xia, Zhen Lu, Min Zhao, Wen-Ting Dai, Lu Ding, Li-Xia Hu, Guo-Lin Jiang
Tumor-specific hepatic stellate cells (tHSCs) contributes to tumorigenesis and progression of hepatocellular carcinoma (HCC). The potential function of tHSCs on dendritic cells (DCs) was studied here. We discovered that tHSCs co-culture induced upregulation of DIgR2 (dendritic cell-derived immunoglobulin receptor 2) in bone marrow-derived DCs (mDCs). Activation of MEK-ERK is required for DIgR2 expression in mDCs. MEK-ERK inhibitors or shRNA-mediated silence of MEK1/2 in mDCs inhibited tHSCs-induced DIgR2 expression...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28898188/contrast-enhanced-us-approach-to-the-diagnosis-of-focal-liver-masses
#8
David P Burrowes, Alexandra Medellin, Allison C Harris, Laurent Milot, Stephanie R Wilson
Focal liver lesions are commonly encountered and often demonstrate nonspecific findings at initial imaging. Although most incidentally discovered liver lesions are benign, their noninvasive diagnosis is necessary, especially if they are large or atypical. Imaging characterization of focal liver lesions and exclusion of malignancy are of prime importance, particularly in high-risk populations. Contrast agent-enhanced ultrasonography of liver lesions is both accurate and reproducible for evaluation of benign and malignant liver tumors...
September 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28895405/screening-key-mirnas-for-human-hepatocellular-carcinoma-based-on-mirna-mrna-functional-synergistic-network
#9
C Zhang, H Du
The safety of miRNAs has been proven and the prophylactic use of miRNA-based approaches may be foreseen for patients with hepatocellular carcinoma (HCC). However, the underlying regulatory mechanism of miRNAs in HCC has not been fully clarified. Using bioinformatic analyses, we compared data of miRNA and mRNA expression profiling of HCC from Gene Expression Omnibus (GEO) database, respectively. Differentially expressed miRNAs and differentially expressed genes (DEGs) were identified. Based on the miRTarBase predictions, the miRNA-dependent regulatory network was constructed...
September 12, 2017: Neoplasma
https://www.readbyqxmd.com/read/28887306/the-long-noncoding-rna-pcat-1-links-the-microrna-mir-215-to-oncogene-crkl-mediated-signaling-in-hepatocellular-carcinoma
#10
Yanli Ren, Jinhua Shang, Jinliang Li, Wenjuan Liu, Zhao Zhang, Jupeng Yuan, Ming Yang
The long non-coding RNA (lncRNA) PCAT-1 resides in chromosome 8q24 cancer-risk locus and acts as a vital oncogene during tumorigenesis and progression. However, how PCAT-1 is posttranscriptionally regulated, for example, by small ncRNAs, such as microRNAs (miRNAs) is largely unknown. Here, we report how miRNAs regulate PCAT-1 expression and also investigate the biological significance of this regulation in hepatocellular carcinoma (HCC). We found that miR-215, a P53-inducible miRNA, is a key regulator of PCAT-1 expression in HCC and identified an interaction between miR-215 and PCAT-1 in dual luciferase reporter gene assays...
September 8, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28884137/hepatitis-b-virus-activates-signal-transducer-and-activator-of-transcription-3-supporting-hepatocyte-survival-and-virus-replication
#11
Marianna Hösel, Maria Quasdorff, Marc Ringelhan, Hamid Kashkar, Svenja Debey-Pascher, Martin F Sprinzl, Jan-Hendrik Bockmann, Silke Arzberger, Dennis Webb, Gesa von Olshausen, Achim Weber, Joachim L Schultze, Hildegard Büning, Mathias Heikenwalder, Ulrike Protzer
BACKGROUND & AIMS: The human hepatitis B virus (HBV) is a major cause of chronic hepatitis and hepatocellular carcinoma, but molecular mechanisms driving liver disease and carcinogenesis are largely unknown. We therefore studied cellular pathways altered by HBV infection. METHODS: We performed gene expression profiling of primary human hepatocytes infected with HBV and proved the results in HBV-replicating cell lines and human liver tissue using real-time polymerase chain reaction and Western blotting...
November 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28882677/protein-biomarkers-for-early-detection-of-diseases-the-decisive-contribution-of-combinatorial-peptide-ligand-libraries
#12
Egisto Boschetti, Alfonsina D'Amato, Giovanni Candiano, Pier Giorgio Righetti
The present review deals with biomarker discovery, especially in regard to sample treatment via combinatorial peptide ligand libraries, perhaps the only technique at present allowing deep exploration of biological fluids and tissue extracts in search for low- to very-low-abundance proteins, which could possibly mark the onset of most pathologies. Early-stage biomarkers, in fact, might be the only way to detect the beginning of most diseases thus permitting proper intervention and care. The following cancers are reviewed, with lists of potential biomarkers suggested in various reports: hepatocellular carcinoma, ovarian cancer, breast cancer and pancreatic cancer, together with some other interesting applications...
September 4, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28881735/prognostic-and-clinicopathologic-significance-of-sirt1-expression-in-hepatocellular-carcinoma
#13
Hongyuan Jiang, Xiao Zhang, Yuquan Tao, Liang Shan, Qijun Jiang, Yongchun Yu, Feng Cai, Lifang Ma
The clinical value of SIRT1 in hepatocellular carcinoma (HCC) remains controversial. This meta-analysis was performed to investigate the prognostic and clinicopathological significance of the histone deacetylase SIRT1 in HCC. Pooled hazard ratios (HRs) for survival outcomes and pooled odds ratios (ORs) for clinical parameters associated with SIRT1 were calculated in nine studies using Review Manager. Meta-analysis showed that increased SIRT1 expression is associated with poor overall survival (OS) (HR=1.82, 95% confidence interval (CI): 1...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28881713/therapeutic-vaccine-to-cure-large-mouse-hepatocellular-carcinomas
#14
Zhen Han, De Yang, Anna Trivett, Joost J Oppenheim
Hepatocellular carcinoma (HCC) is one of the most common malignancies worldwide with limited therapeutic options. Here we report the development of a therapeutic vaccination regimen (shortened as 'TheraVac') consisting of intratumoral delivery of high-mobility group nucleosome-binding protein 1 (HMGN1), R848/resiquimod, and one of the checkpoint inhibitors (e.g. anti-CTLA4, anti-PD-L1, or low dose of Cytoxan). C57BL/6 mice harboring large (approximately 1 cm in diameter) established subcutaneous Hepa1-6 hepatomas were cured by intratumoral injections of TheraVac and became tumor-free long-term survivors...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28881044/from-large-to-small-the-immunohistochemical-panel-in-the-diagnosis-of-early-hepatocellular-carcinoma
#15
Francesco Vasuri, Deborah Malvi, Sonia Bonora, Silvia Fittipaldi, Matteo Renzulli, Francesco Tovoli, Rita Golfieri, Luigi Bolondi, Antonia D'Errico
AIMS: (i) to validate the immunohistochemical (IHC) markers Glutamine Synthetase (GS), Glypican-3 (GPC3), Heat Shock Protein-70 (HSP70) and Enhancer of Zeste homologue 2 (EZH2) on liver biopsy for the differential diagnosis between small HCC and non-neoplastic liver nodules, with special attention on <1 cm nodules; (ii) to assess the actual sensitivity and specificity of the single markers, and their combination, on needle biopsies. METHODS AND RESULTS: One-hundred (100) liver nodules, 66 HCC and 34 non-neoplastic nodules, were prospectively collected from 43 consecutive OLT patients, and subjected to "backtable" needle biopsies directly on surgical specimen...
September 7, 2017: Histopathology
https://www.readbyqxmd.com/read/28879168/the-oncopig-cancer-model-an-innovative-large-animal-translational-oncology-platform
#16
REVIEW
Kyle M Schachtschneider, Regina M Schwind, Jordan Newson, Nickolas Kinachtchouk, Mark Rizko, Nasya Mendoza-Elias, Paul Grippo, Daniel R Principe, Alex Park, Nana H Overgaard, Gregers Jungersen, Kelly D Garcia, Ajay V Maker, Laurie A Rund, Howard Ozer, Ron C Gaba, Lawrence B Schook
Despite an improved understanding of cancer molecular biology, immune landscapes, and advancements in cytotoxic, biologic, and immunologic anti-cancer therapeutics, cancer remains a leading cause of death worldwide. More than 8.2 million deaths were attributed to cancer in 2012, and it is anticipated that cancer incidence will continue to rise, with 19.3 million cases expected by 2025. The development and investigation of new diagnostic modalities and innovative therapeutic tools is critical for reducing the global cancer burden...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28877813/mixed-hepatocellular-carcinoma-neuroendocrine-carcinoma-of-the-liver
#17
REVIEW
Erin Baker, Carl Jacobs, John Martinie, David A Iannitti, Dionisios Vrochides, Ryan Z Swan
We present the case of a 76-year-old male found to have a large tumor involving the left lateral lobe of the liver, presumed to be hepatocellular carcinoma (HCC). After resection, pathologic features demonstrated both high-grade HCC and high-grade neuroendocrine carcinoma (NEC). Areas of NEC stained strongly for synaptophysin, which was not present in HCC component. The HCC component stained strongly for Hep-Par 1, which was not present in the NEC component. The patient underwent genetic analysis for biomarkers common to both tumor cell types...
November 1, 2016: American Surgeon
https://www.readbyqxmd.com/read/28874716/cell-spheroids-with-enhanced-aggressiveness-to-mimic-human-liver-cancer-in-vitro-and-in-vivo
#18
Hong-Ryul Jung, Hyun Mi Kang, Jea-Woon Ryu, Dae-Soo Kim, Kyung Hee Noh, Eun-Su Kim, Ho-Joon Lee, Kyung-Sook Chung, Hyun-Soo Cho, Nam-Soon Kim, Dong-Soo Im, Jung Hwa Lim, Cho-Rok Jung
We fabricated a spheroid-forming unit (SFU) for efficient and economic production of cell spheroids. We optimized the protocol for generating large and homogenous liver cancer cell spheroids using Huh7 hepatocellular carcinoma (HCC) cells. The large Huh7 spheroids showed apoptotic and proliferative signals in the centre and at the surface, respectively. In particular, hypoxia-induced factor-1 alpha (HIF-1α) and ERK signal activation were detected in the cell spheroids. To diminish core necrosis and increase the oncogenic character, we co-cultured spheroids with 2% human umbilical vein endothelial cells (HUVECs)...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28871000/low-levels-of-microsatellite-instability-at-simple-repeated-sequences-commonly-occur-in-human-hepatocellular-carcinoma
#19
Claire Goumard, Christele Desbois-Mouthon, Dominique Wendum, Claire Calmel, Fatiha Merabtene, Olivier Scatton, Françoise Praz
BACKGROUND/AIM: The aim of this study was to assess the inÔidence of MSI in a large series of human hepatocellular carcinomas (HCC) with various etiologies. MATERIALS AND METHODS: The MSI status was determined by polymerase chain reaction (PCR) using 5 mononucleotide and 13 CAn dinucleotide repeats. RESULTS: None of the 122 HCC samples displayed an MSI-High phenotype, as defined by the presence of alterations at more than 30% of the microsatellite markers analyzed...
September 2017: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/28870205/maintenance-of-stemness-is-associated-with-the-interation-of-lrp6-and-heparin-binding-protein-ccn2-autocrined-by-hepatocellular-carcinoma
#20
Qingan Jia, Yang Bu, Zhiming Wang, Bendong Chen, Qiangbo Zhang, Songning Yu, Qingguang Liu
BACKGROUND: The overall response rate of hepatocellular carcinoma (HCC) to chemotherapy is poor. In our previous study, oxaliplatin-resistant HCC is found to exhibit an enhanced stemness, and increased levels of CCN2 and LRP6, while the role of CCN2 and LRP6 in the prognosis of HCC patients, and the interaction regulation mechanism between CCN2 and LRP6 are still unclear. METHODS: The expression levels of CCN2 and LRP6 were detected in large cohorts of HCCs, and functional analyses of CCN2 and LRP6 were performed both in vitro and in vivo...
September 4, 2017: Journal of Experimental & Clinical Cancer Research: CR
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