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https://www.readbyqxmd.com/read/28820498/interference-of-apoptosis-by-hepatitis-b-virus
#1
REVIEW
Shaoli Lin, Yan-Jin Zhang
Hepatitis B virus (HBV) causes liver diseases that have been a consistent problem for human health, leading to more than one million deaths every year worldwide. A large proportion of hepatocellular carcinoma (HCC) cases across the world are closely associated with chronic HBV infection. Apoptosis is a programmed cell death and is frequently altered in cancer development. HBV infection interferes with the apoptosis signaling to promote HCC progression and viral proliferation. The HBV-mediated alteration of apoptosis is achieved via interference with cellular signaling pathways and regulation of epigenetics...
August 18, 2017: Viruses
https://www.readbyqxmd.com/read/28817119/mir-1301-inhibits-hepatocellular-carcinoma-cell-migration-invasion-and-angiogenesis-by-decreasing-wnt-%C3%AE-catenin-signaling-through-targeting-bcl9
#2
Chao Yang, Yonghua Xu, Feng Cheng, Yuanchang Hu, Shikun Yang, Jianhua Rao, Xuehao Wang
Metastasis is the major cause of the poor prognosis of hepatocellular carcinoma (HCC), and increasing evidence supports the contribution of miRNAs to cancer progression. However, the exact relationship between the level of miR-1301 expression and HCC cell migration, invasion, and angiogenesis remains largely unknown. Quantitative PCR was used to evaluate the level of miR-1301 expression in HCC tissues and cell lines. Transwell and tube-formation assays were used to measure the effects of miR-1301 on HCC cell migration and invasion, and angiogenesis, respectively...
August 17, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28816437/selective-targeting-by-a-mechanism-based-inactivator-against-plp-dependent-enzymes-mechanisms-of-inactivation-and-alternative-turnover
#3
Romila Mascarenhas, Hoang V Le, Kenneth D Clevenger, Helaina J Lehrer, Dagmar Ringe, Neil L Kelleher, Richard B Silverman, Dali Liu
Potent mechanism-based inactivators can be rationally designed against PLP-dependent drug targets, such as ornithine aminotransferase (OAT) or γ-aminobutyric acid aminotransferase (GABA-AT). An important challenge, however, is the lack of selectivity towards other PLP-dependent off-target enzymes, because of similarities in mechanisms of all PLP-dependent aminotransferase reactions. On the basis of complex crystal structures, we investigate the inactivation mechanism of OAT, a hepatocellular carcinoma (HCC) target, by (1R,3S,4S)-3-amino-4-fluorocyclopentane-1-carboxylic acid (FCP), a known inactivator of GABA-AT...
August 17, 2017: Biochemistry
https://www.readbyqxmd.com/read/28815883/wwc2-is-an-independent-prognostic-factor-and-prevents-invasion-via-hippo-signalling-in-hepatocellular-carcinoma
#4
Yijun Zhang, Shumei Yan, Jiewei Chen, Caixia Gan, Dong Chen, Yan Li, Jiahuai Wen, Joachim Kremerskothen, Shilu Chen, Jiangbo Zhang, Yun Cao
WWC family proteins negatively regulate HEK293 cell proliferation and organ growth by suppressing the transcriptional activity of Yes-associated protein (YAP), a major effector of the Hippo pathway. The function of the scaffolding protein WWC1 (also called KIBRA) has been intensively studied in cells and animal models. However, the expression and clinicopathologic significance of WWC2 in cancer are poorly characterized. This study aimed to clarify the biological function and mechanism of action of WWC2 in hepatocellular carcinoma (HCC)...
August 16, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28810875/role-of-iqgap3-in-metastasis-and-epithelial-mesenchymal-transition-in-human-hepatocellular-carcinoma
#5
Yongjie Shi, Nan Qin, Qiang Zhou, Yanqiu Chen, Sicong Huang, Bo Chen, Gang Shen, Hongyun Jia
BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most lethal cancers worldwide owing to its high rates of metastasis and recurrence. The oncogene IQ motif-containing GTPase activating protein 3 (IQGAP3) is ubiquitously overexpressed in several human cancers, including liver, ovary, lung, large intestine, gastric, bone marrow, and breast malignancies and is involved in the invasion and metastasis of cancer cells. Therefore, we aimed to determine the biological role and molecular mechanism of IQGAP3 in HCC...
August 15, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28807489/a-model-to-estimate-survival-in-ambulatory-patients-with-hepatocellular-carcinoma-can-it-predict-the-natural-course-of-hepatocellular-carcinoma
#6
Won-Mook Choi, Su Jong Yu, Hongkeun Ahn, Hyeki Cho, Young Youn Cho, Minjong Lee, Jeong-Ju Yoo, Yuri Cho, Dong Hyeon Lee, Eun Ju Cho, Jeong-Hoon Lee, Yoon Jun Kim, Jung-Hwan Yoon
BACKGROUND: Several hepatocellular carcinoma (HCC) staging systems are available including the newly developed staging system, the Model to Estimate Survival in Ambulatory HCC patients (MESIAH); however, whether these staging systems could predict the natural course of HCC is largely unknown. METHODS: 1013 patients with history of HCC treatment and 111 patients without any history of treatment till death or last follow-up at a single tertiary hospital were included...
July 29, 2017: Digestive and Liver Disease
https://www.readbyqxmd.com/read/28803882/changes-in-coumarin-kinetics-and-subcellular-localization-of-cyp2e1-contribute-to-bile-duct-damage-and-reduce-hepatocellular-damage-after-repeated-administration-of-coumarin-in-rats
#7
Yasuhiro Tanaka, Wataru Fujii, Hisako Hori, Yoshinori Kitagawa, Kiyokazu Ozaki
Coumarin exhibits different hepatotoxicity in rats depending on the administration frequency. To investigate the underlying mechanisms for the differences, we administered coumarin to rats as a single dose or repeatedly for 4 weeks. We found large increases in blood levels of liver enzymes and noticeable centrilobular hepatic necrosis after a single dose of coumarin. After repeated administration, enzyme levels mildly increased, while those of γ-GTP and total bilirubin significantly increased, suggesting bile duct damage...
August 10, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28799103/bleeding-recurrence-and-mortality-following-interventional-management-of-spontaneous-hcc-rupture-results-of-a-multicenter-european-study
#8
Lilian Schwarz, Michael Bubenheim, Johanna Zemour, Astrid Herrero, Fabrice Muscari, Ahmet Ayav, Romain Riboud, Christian Ducerf, J-Marc Regimbeau, Hadrien Tranchart, Emilie Lermite, Gheorghe Petrovai, Amal Suhol, Alexandre Doussot, Lorenzo Capussotti, Jean Jacques Tuech, Yves Patrice Le Treut
BACKGROUND: The incidence of spontaneous rupture of hepatocellular carcinoma (HCC) is low in Europe, at less than 3%. HCC rupture remains a life-threatening complication, with mortality reported between 16 and 30%. The risk of bleeding recurrence has never been clearly evaluated in such clinical situation. The objectives of this study were to evaluate the current risk of mortality related to HCC rupture and to focus on the risk of bleeding recurrence following interventional management...
August 10, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28798470/identification-of-the-novel-3-utr-sequences-of-human-il-21-mrna-as-potential-targets-of-mirnas
#9
Yutaka Enomoto, Rie Takagi, Yutaka Naito, Tsuyoshi Kiniwa, Yasuhito Tanaka, Susumu Hamada-Tsutsumi, Masaaki Kawano, Sho Matsushita, Takahiro Ochiya, Atsushi Miyajima
Hepatitis B virus (HBV) infection is a leading cause of hepatocellular carcinoma worldwide. However, the strategy of HBV to escape from the host immune system remains largely unknown. In this study, we examined extracellular vesicles (EVs) secreted from human hepatocytes infected with HBV. EVs includeing exosomes are nano-size vesicles with proteins, mRNAs, and microRNAs (miRNAs), which can be transmitted to different cells. We found that 104 EV associated miRNAs were increased in hepatocytes more than 2-fold by HBV infection...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28796864/individualized-adaptive-stereotactic-body-radiotherapy-for-liver-tumors-in-patients-at-high-risk-for-liver-damage-a-phase-2-clinical-trial
#10
Mary Feng, Krithika Suresh, Matthew J Schipper, Latifa Bazzi, Edgar Ben-Josef, Martha M Matuszak, Neehar D Parikh, Theodore H Welling, Daniel Normolle, Randall K Ten Haken, Theodore S Lawrence
Importance: Patients with preexisting liver dysfunction could benefit the most from personalized therapy for liver tumors to balance maximal tumor control and minimal risk of liver failure. We designed an individualized adaptive trial testing the hypothesis that adapting treatment based on change in liver function could optimize the therapeutic index for each patient. Objective: To characterize the safety and efficacy of individualized adaptive stereotactic body radiotherapy (SRBT) for liver tumors in patients who have preexisting liver dysfunction...
August 10, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28795316/diaph3-promoted-the-growth-migration-and-metastasis-of-hepatocellular-carcinoma-cells-by-activating-beta-catenin-tcf-signaling
#11
Li Dong, Zhijun Li, Liying Xue, Gang Li, Cuiying Zhang, Zhihui Cai, Hui Li, Ruifang Guo
The enhanced ability of cancer cell migration and metastasis is the major cause for the cancer-related death of hepatocellular carcinoma (HCC). Better understanding the mechanisms for the motility of cancer cells will benefit the treatment. Diaphanous-related formin 3 (DIAPH3) has been reported to regulate the motility of cells by remodeling the cytoskeleton. However, the mechanism through which DIAPH3 regulated the motility of cancer cells remains largely unknown. In this study, we have shown that the expression of DIAPH3 was up-regulated in HCC...
August 9, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28794477/up-regulation-of-brca1-associated-ring-domain-1-promotes-hepatocellular-carcinoma-progression-by-targeting-akt-signaling
#12
Yan Liao, Shengguang Yuan, Xinhuang Chen, Pengpeng Zhu, Jun Li, Liling Qin, Weijia Liao
The present study was designed to investigate the potential clinical, pathological, prognostic value, role and mechanism of BRCA1-associated RING Domain 1 (BARD1) in Hepatocellular carcinoma (HCC). Quantitative real-time PCR and immunohistochemistry were performed to evaluate the expression of BARD1 mRNA and protein. The expression of BARD1 in the HCC tissue samples was markedly higher than that in the adjacent noncancerous liver tissues. Elevated BARD1 expression was positively correlated with tumor-node-metastasis stage, Barcelona-Clinic Liver Cancer stage, hepatitis B surface antigen, large tumor size, serum alpha-fetoprotein levels, and serum aspartate aminotransferase levels...
August 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28794043/sorafenib-impedes-rift-valley-fever-virus-egress-by-inhibiting-valosin-containing-protein-function-in-the-cellular-secretory-pathway
#13
Ashwini Brahms, Rajini Mudhasani, Chelsea Pinkham, Krishna Kota, Farooq Nassar, Rouzbeh Zamani, Sina Bavari, Kylene Kehn-Hall
There is an urgent need for therapeutic development to combat Rift Valley fever virus (RVFV) infections, which causes devastating disease in both humans and animals. In an effort to repurpose drugs for RVFV treatment, our previous studies screened a library of FDA-approved drugs. The most promising candidate identified was the hepatocellular and renal cell carcinoma drug, sorafenib. Mechanism of action studies indicated sorafenib targeted a late stage in virus infection and caused a buildup of virions within cells...
August 9, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28792499/revisiting-chemoaffinity-theory-chemotactic-implementation-of-topographic-axonal-projection
#14
Honda Naoki
Neural circuits are wired by chemotactic migration of growth cones guided by extracellular guidance cue gradients. How growth cone chemotaxis builds the macroscopic structure of the neural circuit is a fundamental question in neuroscience. I addressed this issue in the case of the ordered axonal projections called topographic maps in the retinotectal system. In the retina and tectum, the erythropoietin-producing hepatocellular (Eph) receptors and their ligands, the ephrins, are expressed in gradients. According to Sperry's chemoaffinity theory, gradients in both the source and target areas enable projecting axons to recognize their proper terminals, but how axons chemotactically decode their destinations is largely unknown...
August 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28791711/is-early-recurrence-of-hepatocellular-carcinoma-in-hcv-cirrhotic-patients-affected-by-treatment-with-direct-acting-antivirals-a-prospective-multicentre-study
#15
G Cabibbo, S Petta, V Calvaruso, I Cacciola, M R Cannavò, S Madonia, M Distefano, L Larocca, T Prestileo, F Tinè, G Bertino, L Giannitrapani, F Benanti, A Licata, I Scalisi, G Mazzola, F Cartabellotta, N Alessi, M Barbàra, M Russello, G Scifo, G Squadrito, G Raimondo, A Craxì, V Di Marco, C Cammà
BACKGROUND: Data on HCV-related hepatocellular carcinoma (HCC) early recurrence in patients whose HCC was previously cured, and subsequently treated by direct-acting antivirals (DAAs), are equivocal. AIM: To assess the risk of HCC early recurrence after DAAs exposure in a large prospective cohort of HCV-cirrhotic patients with previous successfully treated HCC, also looking for risk factors for cancer early recurrence. METHODS: We enrolled 143 consecutive patients with complete response after curative treatment of HCC, subsequently treated with DAAs and monitored by the web-based RESIST-HCV database...
August 9, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28771610/the-impact-of-thyroid-hormones-on-patients-with-hepatocellular-carcinoma
#16
Matthias Pinter, Lukas Haupt, Florian Hucke, Simona Bota, Theresa Bucsics, Michael Trauner, Markus Peck-Radosavljevic, Wolfgang Sieghart
BACKGROUND & AIMS: Hypothyroidism has recently been proposed as predisposing factor for HCC development. However, the role of thyroid hormones (TH) in established HCC is largely unclear. We investigated the impact of TH on clinical characteristics and prognosis of HCC patients. METHODS: Of 838 patients diagnosed with nonsurgical HCC at the Division of Gastroenterology and Hepatology/Medical University of Vienna between 1992 and 2012, 667 patients fulfilled the inclusion criteria...
2017: PloS One
https://www.readbyqxmd.com/read/28771247/clinical-penetrance-in-hereditary-hemochromatosis-estimates-of-the-cumulative-incidence-of-severe-liver-disease-among-hfe-c282y-homozygotes
#17
REVIEW
Scott D Grosse, Lyle C Gurrin, Nadine A Bertalli, Katrina J Allen
Iron overload (hemochromatosis) can cause serious, symptomatic disease that is preventable if detected early and managed appropriately. The leading cause of hemochromatosis in populations of predominantly European ancestry is homozygosity of the C282Y variant in the HFE gene. Screening of adults for iron overload or associated genotypes is controversial, largely because of a belief that severe phenotypes are uncommon, although cascade testing of first-degree relatives of patients is widely endorsed. We contend that severe liver disease (cirrhosis or hepatocellular cancer) is not at all uncommon among older males with hereditary hemochromatosis...
August 3, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28764977/hypomethylation-of-boris-is-a-promising-prognostic-biomarker-in-hepatocellular-carcinoma
#18
Jingyang He, Yuan Huang, Zhongjian Liu, Rongce Zhao, Qiuyin Liu, Ling Wei, Xiaoqin Yu, Bo Li, Yang Qin
The brother of the regulator of the imprinted site (BORIS), an 11 zinc finger (ZF) protein, is a paralogue of CCCTC-binding factor (CTCF), involves in a few crucial events of chromatin functions, complex transcription regulation during spermatogenesis. As a novel tumor oncogene, abnormal expression of BORIS is observed in human hepatocellular carcinoma, however, the underlying mechanisms remain largely unexplored. In this study, the methylation status of BORIS was tested by methylation specific polymerase chain reaction (MSP) in human HCC cell lines and 43 pairs of tissue specimens...
July 29, 2017: Gene
https://www.readbyqxmd.com/read/28759960/low-expression-of-nek2-is-associated-with-hepatocellular-carcinoma-progression-and-poor-prognosis
#19
Luoqin Fu, Suxia Liu, Huiju Wang, Yingyu Ma, Li Li, Xianglei He, Xiaozhou Mou, Xiangmin Tong, Zhiming Hu, Guoqing Ru
BACKGROUND: NIMA-related kinase 2 (NEK2), a serine/threonine kinase, is located in the centrosome and is a member of cell cycle regulation related protein kinase (CCRK) family. Aberrant expression of NEK2 is linked with carcinogenesis and progression of various tumors. OBJECTIVE: To investigate the expression level of NEK2 and its relationship with clinicopathological factors in hepatocellular carcinoma (HCC). METHODS: Immunohistochemistry was used to measure the expression of NEK2 in 310 patients' specimen tissues and 197 adjacent normal liver tissues of HCC cases, and the subsequent prognostic value for each sample was estimated...
July 19, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28758319/treatment-options-for-unresectable-hcc-with-a-focus-on-sirt-with-yttrium-90-resin-microspheres
#20
REVIEW
Eric A Wang, Jeff P Stein, Ross J Bellavia, Scott R Broadwell
Hepatocellular carcinoma (HCC), the predominant form of primary liver cancer, is the second leading cause of cancer-related deaths across the globe. Only a small percentage of HCC patients (~20%-30%) are diagnosed at an early stage when first-line treatment options may be effective. The majority of HCC patients (>70%) are diagnosed with unresectable disease and given a poor overall prognosis. Current treatment guidelines recommend locoregional therapy with transarterial chemoembolisation (TACE) and systemic therapy with sorafenib as first-line treatment for patients with intermediate and advanced stage HCC...
July 30, 2017: International Journal of Clinical Practice
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