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https://www.readbyqxmd.com/read/29214213/therapeutic-potential-of-arsenic-trioxide-ato-in-treatment-of-hepatocellular-carcinoma-role-of-oxidative-stress-in-ato-induced-apoptosis
#1
Erika B Dugo, Clement G Yedjou, Jacqueline J Stevens, Paul B Tchounwou
Hepatocellular carcinoma (HCC), the dominant form of primary liver cancer, is the sixth most common cancer in the world with more than 700,000 people diagnosed annually. Arsenic trioxide (ATO) has been shown to be a potent anticancer agent in various carcinomas, proving particularly effective in the clinical treatment of relapsed and refractory acute promyelocytic leukemia. However, its bioactivity and molecular mechanisms against HCC has not been fully studied. Using human HCC (HepG2) cells as a test model, we studied the effects of ATO and examined the role of oxidative stress (OS) and apoptosis in cytotoxicity...
2017: Annals of Clinical Pathology
https://www.readbyqxmd.com/read/29211299/endoplasmic-reticulum-stress-induced-lox-1-cd15-polymorphonuclear-myeloid-derived-suppressor-cells-in-hepatocellular-carcinoma
#2
Nan Jiang, Yan-Fang Xing, Bo Hu, Jian-Xin Tang, Hui-Min Dong, Yu-Mei He, Dan-Yun Ruan, Qing-Jian Ye, Jia-Rong Cai, Xiao-Kun Ma, Jie Chen, Xiu-Rong Cai, Ze-Xiao Lin, Xiang-Yuan Wu, Xing Li
AIM: A recent study indicated that Lectin-type oxidized LDL receptor-1 (LOX-1) was a distinct surface marker for human polymorphonuclears myeloid-derived suppressor cells (PMN-MDSC). The present study was aimed to investigate the existence LOX-1 PMN-MDSC in hepatocellular carcinoma (HCC) patients. METHODS: 127 HCC patients, 10 patients with mild active chronic hepatits B, 10 liver cirrhosis due to hepatitis B, 10 liver dysplastic node with hepatitis B and 50 health control were included...
December 6, 2017: Immunology
https://www.readbyqxmd.com/read/29209641/the-folate-cycle-is-a-new-metabolic-weakness-of-cancer
#3
Derek Lee, Carmen Chak-Lui Wong
Cancer cells harness nutrients to support its rapid proliferation through metabolic reprogramming. Our report identified folate cycle as a metabolic target in hepatocellular carcinoma. Folate cycle stagnation via inhibition of its mitochondrial folate enzyme methylenetetrahydrofolate dehydrogenase 1-like (MTHFD1L) greatly induced oxidative stress improving HCC cells' response to sorafenib.
2017: Molecular & Cellular Oncology
https://www.readbyqxmd.com/read/29209107/functional-interaction-of-endoplasmic-reticulum-stress-and-hepatitis-b-virus-in-the-pathogenesis-of-liver-diseases
#4
REVIEW
So Young Kim, Yi Yi Kyaw, Jaehun Cheong
Hepatitis B virus (HBV) is a non-cytopathic virus that causes acute and chronic inflammatory liver diseases, often leading to the pathogenesis of hepatocellular carcinoma (HCC). Although many studies for the roles of HBV on pathogenesis of the liver diseases, such as non-alcoholic fatty liver disease (NAFLD), hepatic inflammation, cirrhosis, and HCC, have been reported, the mechanisms are not fully understood. Endoplasmic reticulum (ER) and mitochondria have the protective mechanisms to restore their damaged function by intrinsic or extrinsic stresses, but their chronic dysfunctions are associated with the pathogenesis of the various diseases...
November 21, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29190981/a20-enhances-the-radiosensitivity-of-hepatocellular-carcinoma-cells-to-60co-%C3%AE-ionizing-radiation
#5
Rui Liu, Dongli Zhao, Xiaozhi Zhang, Suxia Han, Yunyi Yang, Jinlu Ma, Du Meng
The radioresistance of hepatocellular carcinoma (HCC) cells is a critical obstacle for effectively applying radiotherapy (RT) in HCC treatment. NF-κB, an important transcription factor, can influence critical cell fate decisions by promoting cell survival or anti-apoptosis in response to cell-stress, e.g. chemotherapies or ionizing radiation (IR). A20, also named as tumor necrosis factor α induced protein 3 (TNFAIP3), is a dominant negative regulator of NF-κB pathway and its functions in HCC are largely unknown...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29190976/celastrol-induces-apoptosis-in-hepatocellular-carcinoma-cells-via-targeting-er-stress-upr
#6
Bo Ren, Hui Liu, Hang Gao, Shutong Liu, Zehui Zhang, Andrew M Fribley, Michael U Callaghan, Zhixiang Xu, Qinghua Zeng, Yulin Li
Hepatocellular carcinoma (HCC) is one of the most serious and deadly diseases worldwide with limited options for effective treatment. Biomarker-based active compound targeting therapy may shed some light on novel drugs for HCC. The endoplasmic reticulum (ER) stress and unfolded protein response (UPR) play important roles in the regulation of cell fate and have become novel signaling targets for the development of anticancer drugs. Celastrol, a triterpene from traditional Chinese medicine, has been reported to possess anti-tumor effects on various cancers...
November 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/29184085/diverse-changes-of-circulating-fibroblast-growth-factor-21-levels-in-hepatitis-b-virus-related-diseases
#7
Liang Wu, Qingchun Pan, Guangyu Wu, Lingling Qian, Jing Zhang, Lei Zhang, Qichen Fang, Guoqing Zang, Yudong Wang, George Lau, Huating Li, Weiping Jia
Fibroblast growth factor 21 (FGF21), a stress-induced hormone in the liver, has been shown the protective functions in pathological conditions. The study investigated the association of circulating FGF21 with hepatitis B virus (HBV) infection and its related diseases. Serum FGF21 levels were measured in 33 acute hepatitis B (AHB), 75 chronic hepatitis B (CHB) and 66 CHB patients with advanced liver diseases including liver cirrhosis, acute-on-chronic liver failure (ALCF) and hepatocellular carcinoma (HCC) together with 200 age- and BMI-matched healthy controls...
November 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29180379/selection-of-internal-references-for-qrt-pcr-assays-of-human-hepatocellular-carcinoma-cell-lines
#8
Yang Liu, Zhaoyu Qin, Lili Cai, Lili Zou, Jing Zhao, Fan Zhong
Selecting internal references is important for normalising the loading quantity of samples in quantitative reverse transcription polymerase chain reaction (qRT-PCR). In this study, a systematic evaluation of reference genes among nine hepatocellular carcinoma cell lines was conducted. After screening the microarray assay data of 10 HCC cell lines, 19 candidate reference genes were preselected and then evaluated by qRT-PCR, together with ACTB , GAPDH , HPRT1 and TUBB The expression evenness of these candidate genes was evaluated using RefFinder...
November 27, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/29166610/cisd2-haploinsufficiency-disrupts-calcium-homeostasis-causes-nonalcoholic-fatty-liver-disease-and-promotes-hepatocellular-carcinoma
#9
Zhao-Qing Shen, Yi-Fan Chen, Jim-Ray Chen, Yuh-Shan Jou, Pei-Chun Wu, Cheng-Heng Kao, Chih-Hao Wang, Yi-Long Huang, Chian-Feng Chen, Ting-Shuo Huang, Yu-Chiau Shyu, Shih-Feng Tsai, Lung-Sen Kao, Ting-Fen Tsai
CISD2 is located within the chromosome 4q region frequently deleted in hepatocellular carcinoma (HCC). Mice with Cisd2 heterozygous deficiency develop a phenotype similar to the clinical manifestation of nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH). Cisd2 haploinsufficiency causes a low incidence (20%) of spontaneous HCC and promotes HBV-associated and DEN-induced HCC; conversely, 2-fold overexpression of Cisd2 suppresses HCC in these models. Mechanistically, Cisd2 interacts with Serca2b and mediates its Ca2+ pump activity via modulation of Serca2b oxidative modification, which regulates ER Ca2+ uptake and maintains intracellular Ca2+ homeostasis in the hepatocyte...
November 21, 2017: Cell Reports
https://www.readbyqxmd.com/read/29163752/cytotoxicity-oxidative-stress-cell-cycle-arrest-and-mitochondrial-apoptosis-after-combined-treatment-of-hepatocarcinoma-cells-with-maleic-anhydride-derivatives-and-quercetin
#10
Gabriela Carrasco-Torres, Rafael Baltiérrez-Hoyos, Erik Andrade-Jorge, Saúl Villa-Treviño, José Guadalupe Trujillo-Ferrara, Verónica Rocío Vásquez-Garzón
The inflammatory condition of malignant tumors continually exposes cancer cells to reactive oxygen species, an oxidizing condition that leads to the activation of the antioxidant defense system. A similar activation occurs with glutathione production. This oxidant condition enables tumor cells to maintain the energy required for growth, proliferation, and evasion of cell death. The objective of the present study was to determine the effect on hepatocellular carcinoma cells of a combination treatment with maleic anhydride derivatives (prooxidants) and quercetin (an antioxidant)...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29156655/the-role-of-glyoxalase-i-glo-i-advanced-glycation-endproducts-ages-and-their-receptor-rage-in-chronic-liver-disease-and-hepatocellular-carcinoma-hcc
#11
REVIEW
Marcus Hollenbach
Glyoxalase-I (Glo-I) and glyoxalase-II (Glo-II) comprise the glyoxalase system and are responsible for the detoxification of methylglyoxal (MGO). MGO is formed non-enzymatically as a by-product, mainly in glycolysis, and leads to the formation of advanced glycation endproducts (AGEs). AGEs bind to their receptor, RAGE, and activate intracellular transcription factors, resulting in the production of pro-inflammatory cytokines, oxidative stress, and inflammation. This review will focus on the implication of the Glo-I/AGE/RAGE system in liver injury and hepatocellular carcinoma (HCC)...
November 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29154569/the-social-transmission-of-risk-maternal-stress-physiology-synchronous-parenting-and-well-being-mediate-the-effects-of-war-exposure-on-child-psychopathology
#12
Galit Halevi, Amir Djalovski, Yaniv Kanat-Maymon, Karen Yirmiya, Orna Zagoory-Sharon, Lee Koren, Ruth Feldman
While chronic early stress increases child susceptibility to psychopathology, risk and resilience trajectories are shaped by maternal social influences whose role requires much further research in longitudinal studies. We examined the social transmission of risk by assessing paths leading from war-exposure to child symptoms as mediated by 3 sources of maternal social influence; stress physiology, synchronous parenting, and psychiatric disorder. Mothers and children living in a zone of continuous war were assessed in early childhood (1...
November 2017: Journal of Abnormal Psychology
https://www.readbyqxmd.com/read/29152143/therapeutic-hexapeptide-pgpipn-prevents-and-cures-alcoholic-fatty-liver-disease-by-affecting-the-expressions-of-genes-related-with-lipid-metabolism-and-oxidative-stress
#13
Nan Qi, Chen Liu, Haoran Yang, Wanrong Shi, Shenyi Wang, Yan Zhou, Cai Wei, Fang Gu, Yide Qin
PGPIPN is a therapeutic hexapeptide derived from bovine β-casein. Here we investigated the role and mechanism of this peptide on alcoholic fatty liver disease (AFLD). We took human hepatic cell line LO2 and hepatocellular carcinoma cell line HepG2 to establish the models of steatosis hepatocyte induced by alcohol, taken PGPIPN as pharmacological intervention. And we also established the model of AFLD mice, taken PGPIPN as therapeutic drug and glutathione (GSH) as positive control. We assayed the biochemical materials related to liver injury, lipid metabolism and oxidation, and observed morphology change and fat accumulation of hepatocyte...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29142422/chemotaxonomic-diversity-of-three-ficus-species-their-discrimination-using-chemometric-analysis-and-their-role-in-combating-oxidative-stress
#14
Nawal Al-Musayeib, Sherif S Ebada, Haidy A Gad, Fadia S Youssef, Mohamed Lotfy Ashour
Background: Genus Ficus (Moraceae) constitutes more than 850 species and about 2000 varieties and it acts as a golden mine that could afford effective and safe remedies combating many health disorders. Objectives: Discrimination of Ficus cordata, Ficus ingens, and Ficus palmata using chemometric analysis and assessment of their role in combating oxidative stress. Materials and Methods: Phytochemical profiling of the methanol extracts of the three Ficus species and their successive fractions was performed using high-performance liquid chromatography/electrospray ionization mass spectrometry...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29141573/liver-protective-effects-of-extra-virgin-olive-oil-interaction-between-its-chemical-composition-and-the-cell-signaling-pathways-involved-in-protection
#15
Sandra A Soto-Alarcon, Rodrigo Valenzuela, Alfonso Valenzuela, Luis A Videla
BACKGROUND AND OBJECTIVE: The liver is an organ susceptible to a multitude of injuries that causes liver damage, like steatosis, non-alcoholic steatohepatitis, cirrhosis, hepatocellular carcinoma, and ischemia-reperfusion injury. Extra virgin olive oil (EVOO), presents several protective effects on the liver, reducing hepatic steatosis, hepatocyte ballooning, fibrogenesis, preventing lipid peroxidation, among other effects. Due to its high levels of monounsaturated fatty acids, mainly oleic acid and phenolic compounds, such as hydroxytyrosol and oleuropein, EVOO is able to participate in the activation of different signaling pathways in the hepatocytes involved in the prevention of inflammation, oxidative stress, endoplasmic reticulum stress, mitochondrial dysfunction, and insulin resistance, allowing the prevention or resolution of liver damage...
November 14, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29141455/methionine-adenosyltransferases-in-cancers-mechanisms-of-dysregulation-and-implications-for-therapy
#16
Lauren Y Maldonado, Diana Arsene, José M Mato, Shelly C Lu
Methionine adenosyltransferase genes encode enzymes responsible for the biosynthesis of S-adenosylmethionine, the principal biological methyl donor and precursor of polyamines and glutathione. Mammalian cells express three genes - MAT1A, MAT2A, and MAT2B - with distinct expression and functions. MAT1A is mainly expressed in the liver and maintains the differentiated states of both hepatocytes and bile duct epithelial cells. Conversely, MAT2A and MAT2B are widely distributed in non-parenchymal cells of the liver and extrahepatic tissues...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29137257/kaempferol-induces-hepatocellular-carcinoma-cell-death-via-endoplasmic-reticulum-stress-chop-autophagy-signaling-pathway
#17
Haiqing Guo, Wei Lin, Xiangying Zhang, Xiaohui Zhang, Zhongjie Hu, Liying Li, Zhongping Duan, Jing Zhang, Feng Ren
Kaempferol is a flavonoid compound that has gained widespread attention due to its antitumor functions. However, the underlying mechanisms are still not clear. The present study investigated the effect of kaempferol on hepatocellular carcinoma and its underlying mechanisms. Kaempferol induced autophagy in a concentration- and time-dependent manner in HepG2 or Huh7 cells, which was evidenced by the significant increase of autophagy-related genes. Inhibition of autophagy pathway, through 3-methyladenine or Atg7 siRNA, strongly diminished kaempferol-induced apoptosis...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136504/arid1a-has-context-dependent-oncogenic-and-tumor-suppressor-functions-in-liver-cancer
#18
Xuxu Sun, Sam C Wang, Yonglong Wei, Xin Luo, Yuemeng Jia, Lin Li, Purva Gopal, Min Zhu, Ibrahim Nassour, Jen-Chieh Chuang, Thomas Maples, Cemre Celen, Liem H Nguyen, Linwei Wu, Shunjun Fu, Weiping Li, Lijian Hui, Feng Tian, Yuan Ji, Shuyuan Zhang, Mahsa Sorouri, Tae Hyun Hwang, Lynda Letzig, Laura James, Zixi Wang, Adam C Yopp, Amit G Singal, Hao Zhu
ARID1A, an SWI/SNF chromatin-remodeling gene, is commonly mutated in cancer and hypothesized to be tumor suppressive. In some hepatocellular carcinoma patients, ARID1A was highly expressed in primary tumors but not in metastatic lesions, suggesting that ARID1A can be lost after initiation. Mice with liver-specific homozygous or heterozygous Arid1a loss were resistant to tumor initiation while ARID1A overexpression accelerated initiation. In contrast, homozygous or heterozygous Arid1a loss in established tumors accelerated progression and metastasis...
November 13, 2017: Cancer Cell
https://www.readbyqxmd.com/read/29127340/hair-cortisol-in-twins-heritability-and-genetic-overlap-with-psychological-variables-and-stress-system-genes
#19
Liz Rietschel, Fabian Streit, Gu Zhu, Kerrie McAloney, Josef Frank, Baptiste Couvy-Duchesne, Stephanie H Witt, Tina M Binz, John McGrath, Ian B Hickie, Narelle K Hansell, Margaret J Wright, Nathan A Gillespie, Andreas J Forstner, Thomas G Schulze, Stefan Wüst, Markus M Nöthen, Markus R Baumgartner, Brian R Walker, Andrew A Crawford, Lucía Colodro-Conde, Sarah E Medland, Nicholas G Martin, Marcella Rietschel
Hair cortisol concentration (HCC) is a promising measure of long-term hypothalamus-pituitary-adrenal (HPA) axis activity. Previous research has suggested an association between HCC and psychological variables, and initial studies of inter-individual variance in HCC have implicated genetic factors. However, whether HCC and psychological variables share genetic risk factors remains unclear. The aims of the present twin study were to: (i) assess the heritability of HCC; (ii) estimate the phenotypic and genetic correlation between HPA axis activity and the psychological variables perceived stress, depressive symptoms, and neuroticism; using formal genetic twin models and molecular genetic methods, i...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29112905/determinants-of-hair-cortisol-concentration-in-children-a-systematic-review
#20
REVIEW
N A Gray, A Dhana, L Van Der Vyver, J Van Wyk, N P Khumalo, D J Stein
BACKGROUND: Several factors are known contribute to hair cortisol concentration (HCC) in adults. However, there is less research on determinants of HCC in children and adolescents. HCC is a valuable tool for medical research pertaining to the hypothalamic-pituitary-adrenal (HPA) axis. This review aims to assess the extent to which established determinants of HCC in adults have been consistently reported in children (birth - 18 years) and to identify determinants of HCC specific to this age group...
November 2, 2017: Psychoneuroendocrinology
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