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https://www.readbyqxmd.com/read/29453538/nickel-oxide-nanoparticles-induced-transcriptomic-alterations-in-hepg2-cells
#1
Quaiser Saquib, Maqsood A Siddiqui, Javed Ahmad, Sabiha M Ansari, Mohammad Faisal, Rizwan Wahab, Abdulrahman A Alatar, Abdulaziz A Al-Khedhairy, Javed Musarrat
Nickel oxide nanoparticles (NiO-NPs) are increasingly used and concerns have been raised on its toxicity. Although a few studies have reported the toxicity of NiO-NPs, a comprehensive understanding of NiO-NPs toxicity in human cells is still lagging. In this study, we integrated transcriptomic approach and genotoxic evidence to depict the mechanism of NiO-NPs toxicity in human hepatocellular carcinoma (HepG2) cells. DNA damage analysis was done using comet assay, which showed 26-fold greater tail moment in HepG2 cells at the highest concentration of 100 μg/ml...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29434733/shikonin-causes-apoptosis-by-disrupting-intracellular-calcium-homeostasis-and-mitochondrial-function-in-human-hepatoma-cells
#2
Hui Wang, Zheng Liu, Xiangchen Li, Ruijie Zhao, Yabin Pu, Handong Wu, Weijun Guan
Shikonin is known to suppress proliferation and induce apoptosis in a variety of cancer cell lines. In the present study, SMMC-7721 human hepatocellular carcinoma cells were treated with shikonin (1, 2 or 4 µM) for 12-48 h. Cell morphological alterations and DNA damage were determined. Furthermore, changes in cell cycle, mitochondrial transmembrane potential, calcium homeostasis and levels of reactive oxygen species were measured. Shikonin-treated SMMC-7721 cells exhibited morphological changes and DNA damage...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29427339/the-stearate-to-palmitate-ratio-modulates-endoplasmic-reticulum-stress-and-cell-apoptosis-in-non-b-non-c-hepatoma-cells
#3
Yasushi Shibasaki, Makoto Horikawa, Koji Ikegami, Ryota Kiuchi, Makoto Takeda, Takanori Hiraide, Yoshifumi Morita, Hiroyuki Konno, Hiroya Takeuchi, Mitsutoshi Setou, Takanori Sakaguchi
The increased prevalence of hepatocellular carcinoma (HCC) without viral infection, namely, NHCC, is a major public health issue worldwide. NHCC is frequently derived from non-alcoholic fatty liver (NAFL) and non-alcoholic steatohepatitis (NASH), which exhibit dysregulated fatty acid (FA) metabolism. This raises a possibility that NHCC evolves intracellular machineries to adapt to dysregulated FA metabolism. We herein aim to identify NHCC-specifically altered FA and key molecules to achieve the adaptation. In order to analyze FA, imaging mass spectrometry (IMS) was performed on fifteen HCC specimens...
February 10, 2018: Cancer Science
https://www.readbyqxmd.com/read/29425151/liver-transplantation-for-alcoholic-liver-disease-and-hepatocellular-carcinoma
#4
REVIEW
Patrizia Burra, Alberto Zanetto, Giacomo Germani
Hepatocellular carcinoma is one of the main important causes of cancer-related death and its mortality is increasingly worldwide. In Europe, alcohol abuse accounts for approximately half of all liver cancer cases and it will become the leading cause of hepatocellular carcinoma in the next future with the sharp decline of chronic viral hepatitis. The pathophysiology of alcohol-induced carcinogenesis involves acetaldehyde catabolism, oxidative stress and chronic liver inflammation. Genetic background plays also a significant role and specific patterns of gene mutations in alcohol-related hepatocellular carcinoma have been characterized...
February 9, 2018: Cancers
https://www.readbyqxmd.com/read/29420225/tonicity-responsive-enhancer-binding-protein-promotes-hepatocellular-carcinogenesis-recurrence-and-metastasis
#5
Jun Ho Lee, Jae Hee Suh, Soo Youn Choi, Hyun Je Kang, Hwan Hee Lee, Byeong Jin Ye, Gap Ryol Lee, Seok Won Jung, Chang Jae Kim, Whaseon Lee-Kwon, Jiyoung Park, Kyungjae Myung, Neung Hwa Park, Hyug Moo Kwon
OBJECTIVES: Hepatocellular carcinoma (HCC) is a common cancer with high rate of recurrence and mortality. Diverse aetiological agents and wide heterogeneity in individual tumours impede effective and personalised treatment. Tonicity-responsive enhancer-binding protein (TonEBP) is a transcriptional cofactor for the expression of proinflammatory genes. Although inflammation is intimately associated with the pathogenesis of HCC, the role of TonEBP is unknown. We aimed to identify function of TonEBP in HCC...
February 2, 2018: Gut
https://www.readbyqxmd.com/read/29414027/associations-of-work-stress-with-hair-cortisol-concentrations-initial-findings-from-a-prospective-study
#6
Raphael M Herr, Christian Almer, Adrian Loerbroks, Amira Barrech, Irina Elfantel, Johannes Siegrist, Harald Gündel, Peter Angerer, Jian Li
There is ample evidence supporting the link between stress at the workplace and physical and mental health. One of the pathways potentially mediating those associations may involve the hypothalamic-pituitary-adrenal (HPA) axis, with cortisol as an end product. While theoretically plausible, findings on the association of self-reported work stress with hair cortisol concentrations (HCC) are inconclusive, being potentially biased by omitted pertinent factors. This issue can be addressed, among others, by eliminating time-invariant factors through consideration of variation within persons over time...
January 18, 2018: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29413959/role-of-gut-microbiota-and-oxidative-stress-in-the-progression-of-non-alcoholic-fatty-liver-disease-to-hepatocarcinoma-current-and-innovative-therapeutic-approaches
#7
REVIEW
Antonella Borrelli, Patrizia Bonelli, Franca Maria Tuccillo, Ira D Goldfine, Joseph L Evans, Franco Maria Buonaguro, Aldo Mancini
Non-alcoholic fatty liver disease (NAFLD) represents the most common chronic liver disease in industrialized countries. NAFLD progresses through the inflammatory phase of non-alcoholic steatohepatitis (NASH) to fibrosis and cirrhosis, with some cases developing liver failure or hepatocellular carcinoma (HCC). Liver biopsy remains the gold standard approach to a definitive diagnosis of NAFLD and the distinction between simple steatosis and NASH. The pathogenesis of NASH is still not clear. Several theories have been proposed ranging from the "Two Hit Theory" to the "Multiple Hit Theory"...
January 27, 2018: Redox Biology
https://www.readbyqxmd.com/read/29404458/interferon-alpha-induced-hepatitis-c-virus-clearance-restores-p53-tumor-suppressor-more-than-direct-acting-antivirals
#8
Yucel Aydin, Animesh Chatterjee, Partha K Chandra, Srinivas Chava, Weina Chen, Anamika Tandon, Asha Dash, Milad Chedid, Martin W Moehlen, Frederic Regenstein, Luis A Balart, Ari Cohen, Hua Lu, Tong Wu, Srikanta Dash
The mechanism why hepatitis C virus (HCV) clearance by direct-acting antivirals (DAAs) does not eliminate the risk of hepatocellular carcinoma (HCC) among patients with advanced cirrhosis is unclear. Many viral and bacterial infections degrade p53 in favor of cell survival to adapt an endoplasmic reticulum (ER)-stress response. In this study, we examined whether HCV clearance by interferon-alpha or DAAs normalizes the ER stress and restores the expression of p53 tumor suppressor in cell culture. We found that HCV infection induces chronic ER stress and unfolded protein response in untransformed primary human hepatocytes...
May 2017: Hepatology Communications
https://www.readbyqxmd.com/read/29404456/up-regulation-of-golgi-%C3%AE-mannosidase-ia-and-down-regulation-of-golgi-%C3%AE-mannosidase-ic-activates-unfolded-protein-response-during-hepatocarcinogenesis
#9
Hsiao-Chen Tu, Yung-Chun Hsiao, Wan-Yu Yang, Shin-Lin Tsai, Hua-Kuo Lin, Chong-Yi Liao, Jeng-Wei Lu, Yu-Ting Chou, Horng-Dar Wang, Chiou-Hwa Yuh
α-1,2 mannosidases, key enzymes in N-glycosylation, are required for the formation of mature glycoproteins in eukaryotes. Aberrant regulation of α-1,2 mannosidases can result in cancer, although the underlying mechanisms are unclear. Here, we report the distinct roles of α-1,2 mannosidase subtypes (MAN1A, MAN1B, ERMAN1, MAN1C) in the formation of hepatocellular carcinoma (HCC). Clinicopathological analyses revealed that the clinical stage, tumor size, α-fetoprotein level, and invasion status were positively correlated with the expression levels of MAN1A1, MAN1B1, and MAN1A2...
May 2017: Hepatology Communications
https://www.readbyqxmd.com/read/29402273/in-vitro-assessment-of-nutraceutical-compounds-and-novel-nutraceutical-formulations-in-a-liver-steatosis-based-model
#10
Antonietta Stellavato, Anna Virginia Adriana Pirozzi, Francesca de Novellis, Ilaria Scognamiglio, Valentina Vassallo, Andrea Maria Giori, Mario De Rosa, Chiara Schiraldi
BACKGROUND: Steatosis is a chronic liver disease that depends on the accumulation of intracellular fatty acids. Currently, no drug treatment has been licensed for steatosis; thus, only nutritional guidelines are indicated to reduce its progression. The aim of this study is to combine different nutraceutical compounds in order to evaluate their synergistic effects on a steatosis in vitro model compared to their separate use. In particular, three different formulations based on silymarin, curcumin, vitamin E, docosahexaenoic acid (DHA), choline, and phosphatidylcholine were assayed...
February 5, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29401710/dietary-iron-supplementation-alters-hepatic-inflammation-in-a-rat-model-of-nonalcoholic-steatohepatitis
#11
Machi Atarashi, Takeshi Izawa, Rena Miyagi, Shoko Ohji, Ai Hashimoto, Mitsuru Kuwamura, Jyoji Yamate
Nonalcoholic fatty liver disease (NAFLD) is now the most common liver disease in the world. NAFLD can progress to nonalcoholic steatohepatitis (NASH), cirrhosis and eventually hepatocellular carcinoma. Acquired hepatic iron overload is seen in a number of patients with NAFLD; however, its significance in the pathology of NAFLD is still debated. Here, we investigated the role of dietary iron supplementation in experimental steatohepatitis in rats. Rats were fed a control, high-fat (HF), high-fat high-iron (HFHI) and high-iron (HI) diet for 30 weeks...
February 4, 2018: Nutrients
https://www.readbyqxmd.com/read/29391905/trb3-reverses-chemotherapy-resistance-and-mediates-crosstalk-between-endoplasmic-reticulum-stress-and-akt-signaling-pathways-in-mhcc97h-human-hepatocellular-carcinoma-cells
#12
Yang Li, Danxi Zhu, Lidan Hou, Bin Hu, Min Xu, Xiangjun Meng
Tribbles homolog 3 (TRB3), a type of pseudokinase that contains a consensus serine/threonine kinase catalytic core structure, is upregulated in hepatocellular carcinoma. However, the effect of TRB3 expression in hepatocellular carcinoma and the molecular mechanisms underlying TRB3-mediated effects on tumorigenesis in hepatocellular carcinoma have not been fully elucidated. The present study focused on the effect of TRB3 expression in MHCC97H hepatocellular carcinoma cells and investigated the underlying molecular mechanisms in MHCC97H cells...
January 2018: Oncology Letters
https://www.readbyqxmd.com/read/29391222/role-of-micrornas-in-the-pathogenesis-and-treatment-of-progressive-liver-injury-in-nafld-and-liver-fibrosis
#13
Qiaozhu Su, Virender Kumar, Neetu Sud, Ram I Mahato
Non-alcoholic fatty liver disease (NAFLD) increases the risk of various liver injuries, ranging from simple steatosis to non-alcoholic steatohepatitis (NASH), fibrosis and cirrhosis, and ultimately hepatocellular carcinoma (HCC). Ample evidence has suggested that aberrant expression of microRNAs (miRNAs) is functionally involved in the activation of cellular stress, inflammation and fibrogenesis in hepatic cells, including hepatocytes, Kupffer and hepatic stellate cells (HSCs), at different pathological stages of NAFLD and liver fibrosis...
January 29, 2018: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/29372372/surgery-for-hepatocellular-carcinoma-in-patients-with-child-pugh-b-cirrhosis-hepatic-resection-versus-living-donor-liver-transplantation
#14
Norifumi Harimoto, Tomoharu Yoshizumi, Yukiko Fujimoto, Takashi Motomura, Youhei Mano, Takeo Toshima, Shinji Itoh, Noboru Harada, Toru Ikegami, Hideaki Uchiyama, Yuji Soejima, Yoshihiko Maehara
BACKGROUND: Liver transplantation has been established as the optimal treatment for hepatocellular carcinoma in cirrhotic patients, but hepatic resection is also effective in patients with well-preserved liver function. Determining the suitable surgical treatment for patients with Child-Pugh class B cirrhosis is a more difficult challenge. METHODS: We retrospectively compared the results of hepatic resection and living donor liver transplantation for hepatocellular carcinoma in 137 patients with Child-Pugh class B cirrhosis...
January 25, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29361380/interleukin-6-a-promising-cytokine-to-support-liver-regeneration-and-adaptive-immunity-in-liver-pathologies
#15
Sidrah Naseem, Tabinda Hussain, Sobia Manzoor
Liver pathologies (fibrosis, cirrhosis, alcoholic, non-alcoholic diseases and hepatocellular carcinoma) represent one of the most common causes of death worldwide. A number of genetic and environmental factors contribute to the development of liver diseases. Interleukin-6 (IL-6) is a pleiotropic cytokine, exerting variety of effects on inflammation, liver regeneration, and defence against infections by regulating adaptive immunity. Due to its high abundance in inflammatory settings, IL-6 is often viewed as a detrimental cytokine...
January 12, 2018: Cytokine & Growth Factor Reviews
https://www.readbyqxmd.com/read/29359013/molecular-basis-of-hepatocellular-carcinoma-induced-by-hepatitis-c-virus-infection
#16
REVIEW
Mohammad Irshad, Priyanka Gupta, Khushboo Irshad
Present study outlines a comprehensive view of published information about the underlying mechanisms operational for progression of chronic hepatitis C virus (HCV) infection to development of hepatocellular carcinoma (HCC). These reports are based on the results of animal experiments and human based studies. Although, the exact delineated mechanism is not yet established, there are evidences available to emphasize the involvement of HCV induced chronic inflammation, oxidative stress, insulin resistance, endoplasmic reticulum stress, hepato steatosis and liver fibrosis in the progression of HCV chronic disease to HCC...
December 28, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/29358120/hair-cortisol-concentrations-in-war-affected-adolescents-a-prospective-intervention-trial
#17
Rana Dajani, Kristin Hadfield, Stan van Uum, Michael Greff, Catherine Panter-Brick
Temporal examinations of the biological signature of stress or trauma in war-affected populations are seldom undertaken. Moreover, few studies have examined whether stress biomarkers track biological sensitivity to brief interventions targeting the improvement of psychosocial wellbeing. Our study is the first to prospectively examine, in war-affected adolescents, the associations between hair cortisol concentrations (HCC) and self-reports of stress, insecurity, posttraumatic reactions, and lifetime trauma. We conducted a randomized controlled trial to test the impact of an 8-week intervention based on profound stress attunement...
December 26, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29352207/ethanol-sensitizes-hepatocytes-for-tgf-%C3%AE-triggered-apoptosis
#18
Haristi Gaitantzi, Christoph Meyer, Pia Rakoczy, Maria Thomas, Kristin Wahl, Franziska Wandrer, Heike Bantel, Hamed Alborzinia, Stefan Wölfl, Sabrina Ehnert, Andreas Nüssler, Ina Bergheim, Loredana Ciuclan, Matthias Ebert, Katja Breitkopf-Heinlein, Steven Dooley
Alcohol abuse is a global health problem causing a substantial fraction of chronic liver diseases. Abundant TGF-β-a potent pro-fibrogenic cytokine-leads to disease progression. Our aim was to elucidate the crosstalk of TGF-β and alcohol on hepatocytes. Primary murine hepatocytes were challenged with ethanol and TGF-β and cell fate was determined. Fluidigm RNA analyses revealed transcriptional effects that regulate survival and apoptosis. Mechanistic insights were derived from enzyme/pathway inhibition experiments and modulation of oxidative stress levels...
January 19, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29351758/autophagy-promotes-metastasis-and-glycolysis-by-upregulating-mct1-expression-and-wnt-%C3%AE-catenin-signaling-pathway-activation-in-hepatocellular-carcinoma-cells
#19
Qing Fan, Liang Yang, Xiaodong Zhang, Yingbo Ma, Yan Li, Lei Dong, Zhihong Zong, Xiangdong Hua, Dongming Su, Hangyu Li, Jingang Liu
BACKGROUND: Autophagy is a dynamic physiological process that can generate energy and nutrients for cell survival during stress. Autophagy can regulate the migration and invasive ability in cancer cells. However, the connection between autophagy and metabolism is unclear. Monocarboxylate transporter 1 (MCT1) plays an important role in lactic acid transport and H+ clearance in cancer cells, and Wnt/β-catenin signaling can increase cancer cell glycolysis. We investigated whether autophagy promotes glycolysis in hepatocellular carcinoma (HCC) cells by activating the Wnt/β-catenin signaling pathway, accompanied by MCT1 upregulation...
January 19, 2018: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/29348495/preclinical-evaluation-of-antitumor-activity-of-the-proteasome-inhibitor-mln2238-ixazomib-in-hepatocellular-carcinoma-cells
#20
Giuseppa Augello, Martina Modica, Antonina Azzolina, Roberto Puleio, Giovanni Cassata, Maria Rita Emma, Caterina Di Sano, Antonella Cusimano, Giuseppe Montalto, Melchiorre Cervello
Hepatocellular carcinoma (HCC) is one of the common malignancies and is an increasingly important cause of cancer death worldwide. Surgery, chemotherapy, and radiation therapy extend the 5-year survival limit in HCC patients by only 6%. Therefore, there is a need to develop new therapeutic approaches for the treatment of this disease. The orally bioavailable proteasome inhibitor MLN2238 (ixazomib) has been demonstrated to have anticancer activity. In the present study, we investigated the preclinical therapeutic efficacy of MLN2238 in HCC cells through in vitro and in vivo models, and examined its molecular mechanisms of action...
January 18, 2018: Cell Death & Disease
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