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https://www.readbyqxmd.com/read/28426876/genome-wide-dna-methylation-analysis-during-non-alcoholic-steatohepatitis-related-multistage-hepatocarcinogenesis-comparison-with-hepatitis-virus-related-carcinogenesis
#1
Junko Kuramoto, Eri Arai, Ying Tian, Nobuaki Funahashi, Masaki Hiramoto, Takao Nammo, Yuichi Nozaki, Yoriko Takahashi, Nanako Ito, Ayako Shibuya, Hidenori Ojima, Aoi Sukeda, Yosuke Seki, Kazunori Kasama, Kazuki Yasuda, Yae Kanai
The aim of this study was to clarify the significance of DNA methylation alterations during non-alcoholic steatohepatitis (NASH)-related hepatocarcinogenesis. Single-CpG-resolution genome-wide DNA methylation analysis was performed on 264 liver tissue samples using the Illumina Infinium HumanMethylation450 BeadChip. After Bonferroni correction, 3331 probes showed significant DNA methylation alterations in 113 samples of non-cancerous liver tissue showing NASH (NASH-N) as compared with 55 samples of normal liver tissue (NLT)...
March 1, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/28422868/meta-analysis-of-possible-role-of-cadherin-gene-methylation-in-evolution-and-prognosis-of-hepatocellular-carcinoma-with-a-prisma-guideline
#2
Chunxiao Zhu, Xuefeng Feng, Guoliang Ye, Tao Huang
BACKGROUND: Cadherins (CDHs) have been reported to be associated with cancer. However, the clinical significance of CDH gene methylation in hepatocellular carcinoma (HCC) remains unclear. METHODS: Based on the preferred reporting items for systematic reviews and meta-analyses (PRISMA) statement criteria, available studies were identified from online electronic database. The overall odds ratio (OR) and the corresponding 95% confidence interval (95% CI) were calculated and analyzed...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28394908/natural-non-homologous-recombination-led-to-the-emergence-of-a-duplicated-v3-ns5a-region-in-hcv-1b-strains-associated-with-hepatocellular-carcinoma
#3
Hélène Le Guillou-Guillemette, Adeline Pivert, Elise Bouthry, Cécile Henquell, Odile Petsaris, Alexandra Ducancelle, Pascal Veillon, Sophie Vallet, Sophie Alain, Vincent Thibault, Florence Abravanel, Arielle A Rosenberg, Elisabeth André-Garnier, Jean-Baptiste Bour, Yazid Baazia, Pascale Trimoulet, Patrice André, Catherine Gaudy-Graffin, Dominique Bettinger, Sylvie Larrat, Anne Signori-Schmuck, Hénia Saoudin, Bruno Pozzetto, Gisèle Lagathu, Sophie Minjolle-Cha, Françoise Stoll-Keller, Jean-Michel Pawlotsky, Jacques Izopet, Christopher Payan, Françoise Lunel-Fabiani, Christophe Lemaire
BACKGROUND: The emergence of new strains in RNA viruses is mainly due to mutations or intra and inter-genotype homologous recombination. Non-homologous recombinations may be deleterious and are rarely detected. In previous studies, we identified HCV-1b strains bearing two tandemly repeated V3 regions in the NS5A gene without ORF disruption. This polymorphism may be associated with an unfavorable course of liver disease and possibly involved in liver carcinogenesis. Here we aimed at characterizing the origin of these mutant strains and identifying the evolutionary mechanism on which the V3 duplication relies...
2017: PloS One
https://www.readbyqxmd.com/read/28366737/mirna-101-1-and-mirna-221-expressions-and-their-polymorphisms-as-biomarkers-for-early-diagnosis-of-hepatocellular-carcinoma
#4
Olfat Shaker, Maha Alhelf, George Morcos, Aisha Elsharkawy
BACKGROUND: Hepatocellular carcinoma (HCC) is the fifth most common malignant tumor with an increasing incidence. Hepatitis C virus (HCV) is one of the major risk factors that lead to HCC development. MicroRNAs are conserved non-coding RNAs which regulate gene expression at the posttranscriptional level. They have been recently identified as important regulators that affect carcinogenesis. Of these miRNAs, are miR-221 and miR-101-1, which their aberrant expressions have been reported to play an important role in HCC...
March 30, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28328796/increased-incidence-of-cancer-observed-in-hiv-hcv-coinfected-patients-versus-hiv-monoinfected-1993-2014
#5
Héctor Meijide, Sonia Pértega, Iria Rodríguez-Osorio, Ángeles Castro-Iglesias, Josefa Baliñas, Guillermo Rodríguez-Martínez, Álvaro Mena, Eva Poveda
BACKGROUND: Cancer is a growing problem in persons living with HIV infection (PLWH) and hepatitis C virus (HCV) coinfection could play an additional role in carcinogenesis. Herein, all cancers in an HIV-mono and HIV/HCV-coinfected cohort were evaluated and compared to identify any differences between these two populations. METHODS: A retrospective cohort study was conducted including all cancers in PLWH between 1993 and 2014. Cancers were classified in two groups, AIDS-defining cancer (ADC) and non AIDS-defining cancer (NADC)...
March 21, 2017: AIDS
https://www.readbyqxmd.com/read/28283039/hepatitis-c-virus-ns3-protein-enhances-hepatocellular-carcinoma-cell-invasion-by-promoting-ppm1a-ubiquitination-and-degradation
#6
Yali Zhou, Yan Zhao, Yaoying Gao, Wenjun Hu, Yan Qu, Ning Lou, Ying Zhu, Xiaoping Zhang, Hongmei Yang
BACKGROUND: Growing evidence suggests that hepatitis C virus (HCV) contributes to hepatocellular carcinoma (HCC) by directly modulating oncogenic signaling pathways. Protein phosphatase magnesium-dependent 1A (PPM1A) has recently emerged as an important tumor suppressor as it can block a range of tumor-centric signaling pathways through protein dephosphorylation. However, the role and regulatory mechanisms of PPM1A in HCV-infected cells have not been reported. METHODS: Total, cytoplasmic, and nuclear PPM1A protein after HCV infection or overexpression of HCV nonstructural protein 3 (NS3) were detected by western blotting...
March 10, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28243398/serum-midkine-and-osteopontin-levels-as-diagnostic-biomarkers-of-hepatocellular-carcinoma
#7
Hossam Hodeib, Ola ELshora, Amal Selim, Nesreen Mohammed Sabry, Heba Mohamed El-Ashry
INTRODUCTION: Hepatocellular Carcinoma (HCC) is a primary tumor of the liver; it is one of the most common cancers worldwide. Osteopontin (OPN) is a phosphorylated glycoprotein which is implicated in enhancing invasive and metastatic progression of many tumors. Midkine (MDK) is a 13-kDa small heparin-binding growth factor which plays a significant role in carcinogenesis related activities. The aim of this study was to assess the efficacy of serum Midkine and Osteopontin levels as diagnostic biomarkers of Hepatocellular Carcinoma...
January 2017: Electronic Physician
https://www.readbyqxmd.com/read/28163802/nitrative-and-oxidative-dna-damage-in-infection-related-carcinogenesis-in-relation-to-cancer-stem-cells
#8
REVIEW
Shosuke Kawanishi, Shiho Ohnishi, Ning Ma, Yusuke Hiraku, Shinji Oikawa, Mariko Murata
Infection and chronic inflammation have been recognized as important factors for carcinogenesis. Under inflammatory conditions, reactive oxygen species (ROS) and reactive nitrogen species (RNS) are generated from inflammatory and epithelial cells, and result in the formation of oxidative and nitrative DNA lesions, such as 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) and 8-nitroguanine. The DNA damage can cause mutations and has been implicated in inflammation-mediated carcinogenesis. It has been estimated that various infectious agents are carcinogenic to humans (IARC group 1), including bacterium Helicobacter pylori (H...
2017: Genes and Environment: the Official Journal of the Japanese Environmental Mutagen Society
https://www.readbyqxmd.com/read/28163062/genome-wide-association-study-identifies-tll1-variant-associated-with-development-of-hepatocellular-carcinoma-after-eradication-of-hepatitis-c-virus-infection
#9
Kentaro Matsuura, Hiromi Sawai, Kazuho Ikeo, Shintaro Ogawa, Etsuko Iio, Masanori Isogawa, Noritomo Shimada, Atsumasa Komori, Hidenori Toyoda, Takashi Kumada, Tadashi Namisaki, Hitoshi Yoshiji, Naoya Sakamoto, Mina Nakagawa, Yasuhiro Asahina, Masayuki Kurosaki, Namiki Izumi, Nobuyuki Enomoto, Atsunori Kusakabe, Eiji Kajiwara, Yoshito Itoh, Tatsuya Ide, Akihiro Tamori, Misako Matsubara, Norifumi Kawada, Ken Shirabe, Eiichi Tomita, Masao Honda, Shuichi Kaneko, Sohji Nishina, Atsushi Suetsugu, Yoichi Hiasa, Hisayoshi Watanabe, Takuya Genda, Isao Sakaida, Shuhei Nishiguchi, Koichi Takaguchi, Eiji Tanaka, Junichi Sugihara, Mitsuo Shimada, Yasuteru Kondo, Yusuke Kawai, Kaname Kojima, Masao Nagasaki, Katsushi Tokunaga, Yasuhito Tanaka
BACKGROUND & AIMS: There is still a risk for hepatocellular carcinoma (HCC) development after eradication of hepatitis C virus (HCV) infection with antiviral agents. We investigated genetic factors associated with the development of HCC in patients with a sustained virologic response (SVR) to treatment for chronic HCV infection. METHODS: We obtained genomic DNA from 457 patients in Japan with a SVR to interferon-based treatment for chronic HCV infection from 2007 through 2015...
February 3, 2017: Gastroenterology
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
#10
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/28050767/impact-of-viral-etiology-on-postoperative-de-novo-recurrence-after-hepatectomy-for-hepatocellular-carcinoma-in-cirrhotic-patients
#11
Kazunari Sasaki, Junichi Shindoh, Yujiro Nishioka, Georgios A Margonis, Toshitaka Sugawara, Nikolaos Andreatos, Masaji Hashimoto, Timothy M Pawlik
BACKGROUND AND AIM: Liver cirrhosis (LC) and hepatocellular carcinoma (HCC) are associated with viral hepatitis, especially hepatitis B virus (HBV) and hepatitis C virus (HCV). Whether differences exist in postoperative de novo carcinogenesis from established cirrhosis according to viral etiology remains unclear. METHODS: Data from 313 LC patients with viral hepatitis (HBV-LC, n = 108 and HCV-LC, n = 205) who underwent curative-intent hepatectomy for HCC were retrospectively collected...
January 3, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/27957239/oxidative-stress-and-liver-cancer-etiology-and-therapeutic-targets
#12
REVIEW
Zhanpeng Wang, Zhuonan Li, Yanshuo Ye, Lijuan Xie, Wei Li
Accumulating evidence has indicated that oxidative stress (OS) is associated with the development of hepatocellular carcinoma (HCC). However, the mechanisms remain largely unknown. Normally, OS occurs when the body receives any danger signal-from either an internal or external source-and further induces DNA oxidative damage and abnormal protein expression, placing the body into a state of vulnerability to the development of various diseases such as cancer. There are many factors involved in liver carcinogenesis, including hepatitis B virus (HBV) and hepatitis C virus (HCV) infection, alcohol abuse, and nonalcoholic fatty liver disease (NAFLD)...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27867514/hepatitis-c-virus-drives-the-pathogenesis-of-hepatocellular-carcinoma-from-immune-evasion-to-carcinogenesis
#13
Miriam Canavese, Danushka Wijesundara, Guy J Maddern, Branka Grubor-Bauk, Ehud Hauben
Persistent hepatitis C virus (HCV) infection is associated with high incidence of hepatocellular carcinoma (HCC), the most common primary malignancy of the liver with over half a million new cases diagnosed annually worldwide. The aryl hydrocarbon receptor (AhR) is a ubiquitously expressed transcription factor and its activation by environmental chemicals and by its endogenous ligand kynurenine (Kyn) has been implicated in a variety of tumour-promoting processes such as transformation, tumorigenesis and in immunosuppression that enables tumour survival and growth...
October 2016: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/27843535/insights-for-hepatitis-c-virus-related-hepatocellular-carcinoma-genetic-biomarkers-early-diagnosis-and-therapeutic-intervention
#14
REVIEW
Wafaa M Ezzat, Khalda Sayed Amr
The current review explores the role of emerging molecular contributing factors in liver carcinogenesis on top of hepatitis C virus (HCV). Here we will try to discuss the role genetic and epigenetic factors in pathogenesis of hepatocellular carcinoma. Understanding the role of these factors will help in discovering the mystery of liver carcinogenesis on top of chronic HCV infection. Moreover, use of the studied molecular factors will provide the hepatologists with tailored diagnostic promising biomarkers and flatten the way for establishment of emerging molecular treatment based on exploring the molecular subscription of this aggressive liver cancer...
October 28, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/27750232/prospective-risk-analysis-of-hepatocellular-carcinoma-in-patients-with-chronic-hepatitis-c-by-ultrasound-strain-elastography
#15
Norihisa Yada, Toshiharu Sakurai, Tomohiro Minami, Tadaaki Arizumi, Masahiro Takita, Satoru Hagiwara, Hiroshi Ida, Kazuomi Ueshima, Naoshi Nishida, Masatoshi Kudo
OBJECTIVE: We have reported about real-time tissue elastography (RTE), which displays relative strain by measuring the relative distortion of the tissue, and found this information to be useful for diagnosing liver fibrosis. However, its use in predicting hepatocellular carcinoma has not been reported as yet. Here, we investigated RTE to predict liver carcinogenesis in patients with chronic hepatitis C virus (HCV) infection. METHODS: We enrolled 160 patients with chronic HCV, who were followed up for 39...
2016: Digestive Diseases
https://www.readbyqxmd.com/read/27742031/distinct-subpopulations-of-hepatitis-c-virus-infectious-cells-with-different-levels-of-intracellular-hepatitis-c-virus-core-protein
#16
Shu-Chi Wang, Jeng-Fu Yang, Chao-Ling Wang, Chung-Feng Huang, Yu-Yin Lin, Yi-You Chen, Chung-Ting Lo, Po-Yen Lee, Kuan-Ta Wu, Chia-I Lin, Meng-Hsuan Hsieh, Hung-Yi Chuang, Chi-Kung Ho, Ming-Lung Yu, Chia-Yen Dai
Chronic infection by hepatitis C virus (HCV) is a major risk factor for the development of hepatocellular carcinoma (HCC). Despite the clear clinical importance of virus-associated HCC, the underlying molecular mechanisms remain largely unclarified. Oxidative stress, in particular, DNA lesions associated with oxidative damage, plays a major role in carcinogenesis, and is strongly linked to the development of many cancers, including HCC. However, in identifying hepatocytes with HCV viral RNA, estimates of the median proportion of HCV-infected hepatocytes have been found as high as 40% in patients with chronic HCV infection...
October 2016: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/27741173/gut-microbiome-and-gastrointestinal-cancer-les-liaisons-dangereuses
#17
Nurdan Tözün, Eser Vardareli
Gastrointestinal (GI) cancers are the leading cause of mortality worldwide. These cancers are the end result of a complex interplay between gene and environment. Bacteria, parasites, and viruses have been implicated in some cancers. Recent data have put at focus the gut microbiome as the key player firing tumorigenesis. Experimental and human studies have provided evidence on the role of microbiota in cancer development. Although subject to changes in different settings such as antibiotic treatment, diet or lifestyle, our microbiome is quite stable and is capable of increasing susceptibility to cancer or decrease and halt its progression...
November 2016: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/27725462/recognition-of-infection-status-of-outpatient-treatment-and-treatment-history-before-carcinogenesis-in-patients-with-viral-hepatitis-associated-liver-cancer
#18
Michihiko Shibata, Sota Minami, Shinji Oe, Koichiro Miyagawa, Yuichi Honma, Ryo Onitsuka, Michio Senju, Masaaki Hiura, Riko Harada, Shintaro Abe, Akinari Tabaru, Masaru Harada
We conducted a survey on the recognition of infection, status of outpatient treatment, and treatment history in hepatitis virus-associated hepatocellular carcinoma patients admitted to our department between 2005 and 2014. We compared these parameters in 75 patients with primary hepatitis B virus-associated hepatocellular carcinoma (HBV-HCC) and 307 patients with hepatitis C virus-associated hepatocellular carcinoma (HCV-HCC). Based on the presence or absence of outpatient treatment in medical institutions at the time of HCC diagnosis, the patients were divided into an outpatient treatment-free group or an outpatient treated group...
2016: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/27714455/genetic-basis-of-hepatitis-virus-associated-hepatocellular-carcinoma-linkage-between-infection-inflammation-and-tumorigenesis
#19
REVIEW
Haruhiko Takeda, Atsushi Takai, Tadashi Inuzuka, Hiroyuki Marusawa
Hepatitis virus infection is a leading cause of chronic liver disease, including cirrhosis and hepatocellular carcinoma (HCC). Although anti-viral therapies against hepatitis B virus (HBV) and hepatitis C virus (HCV) have dramatically progressed during the past decade, the estimated number of people chronically infected with HBV and/or HCV is ~370 million, and hepatitis virus-associated hepatocarcinogenesis is a serious health concern worldwide. Understanding the mechanism of virus-associated carcinogenesis is crucial toward both treatment and prevention, and the recently developed whole genome/exome sequencing analysis using next-generation sequencing technologies has contributed to unveiling the landscape of genetic and epigenetic aberrations in not only tumor tissues but also the background liver tissues underlying chronic liver damage caused by hepatitis virus infection...
January 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/27696294/hepatitis-c-virus-promotes-hepatocellular-carcinogenesis-by-targeting-tipe2-a-new-regulator-of-dna-damage-response
#20
Yaohui Wang, Yinan Jiang, Jinxue Zhou, Wuhui Song, Jing Li, Mingli Wang, Jiuge Chen, Rui Xu, Jingjing Zhang, Fanni Ma, Youhai H Chen, Yuanfang Ma
Infection of hepatitis C virus (HCV) is associated with primary hepatocellular carcinoma (HCC). However, its underlying molecular mechanisms remain enigmatic. Tumor necrosis factor-α-induced protein 8-like 2 (TIPE2), a new negative regulator of immunity, plays significant roles in modulating inflammation and tumorigenesis. We hypothesized that TIPE2 might be involved in the development of HCV-induced HCC. To test this hypothesis, the expression of TIPE2 was determined by Western blot in the tumor and pericarcinomatous tissues collected from ten HCV-positive HCC patients; the interaction between TIPE2 and HCV-encoded non-structural proteins was analyzed by immunoprecipitation and immunofluorescence assays, and tumorigenesis and its mechanisms were studied in cell models and nude mice...
November 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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