keyword
MENU ▼
Read by QxMD icon Read
search

Hepatocellular carcinoma mtor

keyword
https://www.readbyqxmd.com/read/29737948/heat-stress-and-hepatic-laser-thermal-ablation-induce-hepatocellular-carcinoma-growth-role-of-pi3k-mtor-akt-signaling
#1
Danielle E Jondal, Scott M Thompson, Kim A Butters, Bruce E Knudsen, Jill L Anderson, Rickey E Carter, Lewis R Roberts, Matthew R Callstrom, David A Woodrum
Purpose To determine if heat stress and hepatic laser thermal ablation induce hepatocellular carcinoma (HCC) growth and to identify growth factors induced by heat stress. Materials and Methods Non-heat-stressed HCC cells were cocultured with HCC cells or hepatocytes that were heat stressed at 37°C (physiologic), 45°C (moderate), or 50°C (severe) for 10 minutes and proliferation monitored with bioluminescence imaging for up to 6 days after heat stress (three experiments). Rats bearing orthotopic N1S1 HCC were randomly assigned to undergo immediate sham or laser thermal (3 W for 60 or 90 seconds; hereafter, 3W×60s and 3W×90s, respectively) ablation of the median (local) or left (distant) hepatic lobe, and tumor growth was monitored with magnetic resonance imaging for up to 18 days after ablation (six or more rats per group)...
May 8, 2018: Radiology
https://www.readbyqxmd.com/read/29734164/microrna-873-promotes-cell-proliferation-migration-and-invasion-by-directly-targeting-tslc1-in-hepatocellular-carcinoma
#2
Guoyong Han, Long Zhang, Xuhao Ni, Zhiqiang Chen, Xiongxiong Pan, Qin Zhu, Shu Li, Jindao Wu, Xinli Huang, Xuehao Wang
BACKGROUND/AIMS: Hepatocellular carcinoma (HCC) is the most common type of primary liver cancer and has the third highest mortality rate among all cancers. MicroRNAs are a class of endogenous, single-stranded short noncoding RNAs. The purpose of this study was to study the role of microRNA-873 in HCC. METHODS: The expression of miRNA-873 and tumor suppressor in lung cancer 1 (TSLC1) in HCC tissues and cell lines was detected by real-time quantitative RT-PCR (RT-qPCR) or western blot...
May 3, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29725796/multiscale-systems-pharmacological-analysis-of-everolimus-action-in-hepatocellular-carcinoma
#3
Anusha Ande, Maher Chaar, Sihem Ait-Oudhia
Dysregulation of mTOR pathway is common in hepatocellular carcinoma (HCC). A translational quantitative systems pharmacology (QSP), pharmacokinetic (PK), and pharmacodynamic (PD) model dissecting the circuitry of this pathway was developed to predict HCC patients' response to everolimus, an mTOR inhibitor. The time course of key signaling proteins in the mTOR pathway, HCC cells viability, tumor volume (TV) and everolimus plasma and tumor concentrations in xenograft mice, clinical PK of everolimus and progression free survival (PFS) in placebo and everolimus-treated patients were extracted from literature...
May 3, 2018: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/29720580/targeting-mtorc1-2-complexes-inhibit-tumorigenesis-and-enhance-sensitivity-to-5-flourouracil-5-fu-in-hepatocellular-carcinoma-a-preclinical-study-of-mtorc1-2-targeted-therapy-in-hepatocellular-carcinoma-hcc
#4
Yu Zhang, Qing-An Jia, Dhruba Kadel, Xiao-Fei Zhang, Quan-Bao Zhang
BACKGROUND Although 5-Flourouracil(5-FU) is used as the first-choice treatment for advanced hepatocellular carcinoma (HCC), it is associated with acquired and intrinsic resistance. Hyperactivation of mTOR signaling has been linked to tumorigenesis and chemoresistance in HCC. The aim of this study was to evaluate and compare the antitumor effects of mTORC1 inhibitor everolimus and mTORC1/2 inhibitor AZD8055 and to examine the interaction between 5-FU and mTORC1/2 inhibitor in HCC. MATERIAL AND METHODS Using cultured HCC cells and mouse xenograft, the antitumor effects of everolimus and AZD8055 were analyzed as mono- and combination therapy with 5-Flourouracil...
May 3, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29710492/shufeng-jiedu-capsule-and-its-active-ingredients-induce-apoptosis-inhibit-migration-and-invasion-and-enhances-doxorubicin-therapeutic-efficacy-in-hepatocellular-carcinoma
#5
Jufeng Xia, Ling Rong, Tatsuo Sawakami, Yoshinori Inagaki, Peipei Song, Kiyoshi Hasegawa, Yoshihiro Sakamoto, Wei Tang
BACKGROUND: Shufeng Jiedu Capsule (SFJDC), a traditional Chinese medicine, has been used widely as antiviral, antibacterial, antitumor, and anti-inflammatory drugs. Previous studies indicated that some active ingredients of Shufeng Jiedu Capsule, such as resveratrol and quercetin, could suppress hepatocellular carcinoma (HCC) cells through various signaling pathways. However, anti-HCC activity of SFJDC as a complementary medicine remains unexplored. Here, we use a combination of Shufeng Jiedu Capsule and doxorubicin to treat HCC cells and investigated the effects and mechanisms of SFJDC and its ingredientsin vitro...
March 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29710388/antitumor-effect-of-sorafenib-and-mtor-inhibitor-in-liver-transplantation-recipients-with-hepatocellular-carcinoma-recurrence
#6
Dong-Hwan Jung, Eunyoung Tak, Shin Hwang, Gi-Won Song, Chul-Soo Ahn, Ki-Hun Kim, Deok-Bog Moon, Tae-Yong Ha, Gil-Chun Park, Baek-Yeol Ryoo, Kyoung-Jin Lee, Nayoung Kim, Jae-Hyeon Kwon, Eun-Kyoung Jwa, Sung-Gyu Lee
Both sorafenib and mTOR inhibitor (mTORi) have antitumor effects. This study aimed to evaluate their antitumor effects in liver transplantation (LT) recipients with hepatocellular carcinoma (HCC) recurrence. We performed a laboratory study using sorafenib and mTORi and subsequently validated their survival benefit at clinical LT setting. In the laboratory study, HepG2.2.15 liver tumor cell line and five patient-derived graft HCC cell lines were used for in vitro cytotoxic studies. After treatment with everolimus and sorafenib, cell viability and apoptosis assays revealed noticeable cytotoxic effects with individual agents and augmented effects by combination therapy...
April 30, 2018: Liver Transplantation
https://www.readbyqxmd.com/read/29707960/the-phosphoinositide-3-kinase-pi3k-pathway-and-glycogen-synthase-kinase-3-gsk-3-positively-regulate-the-activity-of-metal-responsive-transcription-factor-1-mtf-1-in-response-to-zinc-ions
#7
Yannick Andéol, Jessica Bonneau, Laurence M Gagné, Kevin Jacquet, Véronique Rivest, Marc-Étienne Huot, Carl Séguin
Metal-responsive transcription factor-1 (MTF-1) is a metal-regulatory transcription factor essential for induction of the genes encoding metallothioneins (MTs) in response to transition metal ions. Activation of MTF-1 is dependent on the interaction of zinc with the zinc fingers of the protein. In addition, phosphorylation is essential for MTF-1 transactivation. We previously showed that inhibition of phosphoinositide 3-kinase (PI3K) abrogated <i></i>Mt<i></i> expression and metal-induced MTF-1 activation in human hepatocellular carcinoma (HCC) HepG2 and mouse L cells, thus showing that the PI3K signaling pathway positively regulates MTF-1 activity and <i></i>Mt<i></i> gene expression...
April 30, 2018: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29691292/phenformin-induced-mitochondrial-dysfunction-sensitizes-hepatocellular-carcinoma-for-dual-inhibition-of-mtor
#8
Sonia Rosa Veiga, Xuemei Ge, Carol A Mercer, María Isabel Hernández-Alvarez, Hala Elnakat Thomas, Javier Hernández-Losa, Santiago Ramón Y Cajal, Antonio Zorzano, George Thomas, Sara C Kozma
PURPOSE: Hepatocellular carcinoma (HCC) ranks second in cancer mortality and has limited therapeutic options. We recently described the synergistic effect of allosteric and ATP-site competitive inhibitors against the mammalian target of rapamycin (mTOR) for the treatment of HCC. However, such inhibitors induce glycemia and increase mitochondrial efficiency. Here we determined whether the mitochondrial complex I inhibitor Phenformin could reverse both side effects, impose an energetic-stress on cancer cells and suppress the growth of HCC...
April 24, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29680738/inhibition-of-pi3k-akt-mtor-pathway-by-apigenin-induces-apoptosis-and-autophagy-in-hepatocellular-carcinoma-cells
#9
Jiali Yang, Cuicui Pi, Guanghui Wang
Apigenin is a dietary flavonoid with known antioxidant and antitumor effects against several types of cancers by promoting cell death and inducing cell cycle arrest. Apigenin also regulates a variety of intracellular signal transduction pathways during apoptosis or autophagy. However, the precise mechanism underlying the anticancer effects of apigenin in liver cancer remains poorly understood. In this study, we demonstrated that apigenin has anticancer activity against hepatocellular carcinoma cells. Apigenin inhibited the cell growth and induced cell death in a dose- and time-dependent manner in HepG2 cells...
April 19, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29670377/crocin-induces-autophagic-apoptosis-in-hepatocellular-carcinoma-by-inhibiting-akt-mtor-activity
#10
Chong Yao, Bing-Bing Liu, Xiao-Dong Qian, Li-Qin Li, Heng-Bin Cao, Qiao-Sheng Guo, Gui-Fen Zhou
Background: Autophagy induction is a common mechanism for antitumor chemicals in induction of cancer cell death. However, the role of autophagy in crocin-induced apoptosis is barely studied in hepatocellular carcinoma (HCC). Materials and methods: The influence of crocin on growth, apoptosis, and autophagy and its mutual relations were analyzed by Cell Counting Kit-8 assay, flow cytometer, EGFP-LC3 puncta analysis, and Western blot in HCC cells. The activities of Akt/mTOR axis and its roles in autophagy regulation were also detected by Western blot in HCC cells treated with crocin...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29669855/squalene-epoxidase-drives-nafld-induced-hepatocellular-carcinoma-and-is-a-pharmaceutical-target
#11
Dabin Liu, Chi Chun Wong, Li Fu, Huarong Chen, Liuyang Zhao, Chuangen Li, Yunfei Zhou, Yanquan Zhang, Weiqi Xu, Yidong Yang, Bin Wu, Gong Cheng, Paul Bo-San Lai, Nathalie Wong, Joseph J Y Sung, Jun Yu
Nonalcoholic fatty liver disease (NAFLD)-induced hepatocellular carcinoma (HCC) is an emerging malignancy in the developed world; however, mechanisms that contribute to its formation are largely unknown, and targeted therapy is currently not available. Our RNA sequencing analysis of NAFLD-HCC samples revealed squalene epoxidase ( SQLE ) as the top outlier metabolic gene overexpressed in NAFLD-HCC patients. Hepatocyte-specific Sqle transgenic expression in mice accelerated the development of high-fat, high-cholesterol diet-induced HCC...
April 18, 2018: Science Translational Medicine
https://www.readbyqxmd.com/read/29620259/synergistic-anti-hepatoma-effect-of-bufalin-combined-with-sorafenib-via-mediating-the-tumor-vascular-microenvironment-by-targeting-mtor-vegf-signaling
#12
Haiyong Wang, Chenyue Zhang, Huiying Chi, Zhiqiang Meng
Sorafenib inhibits tumor growth primarily by inhibiting vessel formation, however, its efficacy requires improvement, therefore, the development of strategies which augment its antiangiogenic effect are of primary concern. Bufalin inhibits tumor cell proliferation and metastasis, and induces apoptosis. In our previous study, it was demonstrated that the antiangiogenic effect of sorafenib was improved by bufalin in human umbilical vein endothelial cells (HUVECs). However, whether bufalin synergizes with sorafenib by affecting the tumor vascular microenvironment remains to be elucidated...
April 2, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29609689/regorafenib-delays-the-proliferation-of-hepatocellular-carcinoma-by-inducing-autophagy
#13
Rui Han, Shixin Li
The aim of the present study was to investigate the effects of regorafenib on hepatocellular carcinoma autophagy, thereby supressing the malignancy of HCC. First, HepG2 and Hep3B cell autophagy was investigated using GFP-LC3 transfection after the treatment of regorafenib. Then, the activation of Akt/mTOR signaling was analyzed using western blot. Our data showed that liver cancer cell autophagy was significantly induced by 20 μM regorafenib using GFP-LC3 transfection. Meanwhile, regorafenib-induced cell death could largely be abolished by 3-MA or CQ treatment, suggesting that regorafenib-induced HepG2 cell death was partially dependent on autophagy...
April 2, 2018: Die Pharmazie
https://www.readbyqxmd.com/read/29594326/dysregulation-of-autophagy-in-rat-liver-with-mitochondrial-dna-depletion-induced-by-the-nucleoside-analogue-zidovudine
#14
Ana Santos-Llamas, Maria J Monte, Jose J G Marin, Maria J Perez
The nucleoside reverse transcriptase inhibitor zidovudine (AZT), used in HIV infection treatment, induces mitochondrial DNA (mtDNA) depletion. A cause-effect relationship between mtDNA status alterations and autophagy has been reported. Both events are common in several liver diseases, including hepatocellular carcinoma. Here, we have studied autophagy activation in rat liver with mtDNA depletion induced by AZT administration in drinking water for 35 days. AZT at a concentration of 1 mg/ml, but not 0.5 mg/ml in the drinking water, decreased mtDNA levels in rat liver and extrahepatic tissues...
March 28, 2018: Archives of Toxicology
https://www.readbyqxmd.com/read/29572888/prdm8-exhibits-anti-tumor-activities-toward-hepatocellular-carcinoma-by-targeting-nap1l1
#15
Zhiqiang Chen, Wen Gao, Liyong Pu, Long Zhang, Guoyong Han, Xueliang Zuo, Yao Zhang, Xiangcheng Li, Hongbing Shen, Xuehao Wang, Jindao Wu
Hepatocellular carcinoma (HCC) is a major leading cause of cancer mortality worldwide. PRDI-BF1 and RIZ homology domain containing 8 (PRDM8) is a key regulator in neural development and testis steroidogenesis, however, its role in liver carcinogenesis remains to be investigated. In this study, PRDM8 was found down-regulated in HCC, which was linked with shorter recurrence-free survival. Lentiviral-based overexpression and knockdown approaches showed that PRDM8 inhibited HCC cell proliferation, migration, and invasion...
March 23, 2018: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/29562234/the-protein-histidine-phosphatase-lhpp-is-a-tumour-suppressor
#16
Sravanth K Hindupur, Marco Colombi, Stephen R Fuhs, Matthias S Matter, Yakir Guri, Kevin Adam, Marion Cornu, Salvatore Piscuoglio, Charlotte K Y Ng, Charles Betz, Dritan Liko, Luca Quagliata, Suzette Moes, Paul Jenoe, Luigi M Terracciano, Markus H Heim, Tony Hunter, Michael N Hall
Histidine phosphorylation, the so-called hidden phosphoproteome, is a poorly characterized post-translational modification of proteins. Here we describe a role of histidine phosphorylation in tumorigenesis. Proteomic analysis of 12 tumours from an mTOR-driven hepatocellular carcinoma mouse model revealed that NME1 and NME2, the only known mammalian histidine kinases, were upregulated. Conversely, expression of the putative histidine phosphatase LHPP was downregulated specifically in the tumours. We demonstrate that LHPP is indeed a protein histidine phosphatase...
March 21, 2018: Nature
https://www.readbyqxmd.com/read/29515780/bile-acid-metabolism-regulated-by-the-gut-microbiota-promotes-non-alcoholic-steatohepatitis-associated-hepatocellular-carcinoma-in-mice
#17
Shoji Yamada, Yoko Takashina, Mitsuhiro Watanabe, Ryogo Nagamine, Yoshimasa Saito, Nobuhiko Kamada, Hidetsugu Saito
Gut microbiota plays a significant role in the development of hepatocellular carcinoma (HCC) in non-alcoholic steatohepatitis (NASH). However, understanding of the precise mechanism of this process remains incomplete. A new class steatohepatitis-inducing high-fat diet (HFD), namely STHD-01, can promote the development of HCC without the administration of chemical carcinogens. Using this diet, we comprehensively analyzed changes in the gut microbiota and its metabolic functions during the development of HCC in NASH...
February 9, 2018: Oncotarget
https://www.readbyqxmd.com/read/29510199/linalool-induces-cell-cycle-arrest-and-apoptosis-in-hepg2-cells-through-oxidative-stress-generation-and-modulation-of-ras-mapk-and-akt-mtor-pathways
#18
Boris Rodenak-Kladniew, Agustina Castro, Peter Stärkel, Christine De Saeger, Margarita García de Bravo, Rosana Crespo
AIMS: Linalool is a plant-derived monoterpene with anticancer activity, however its mechanisms of action remain poorly understood. The aim of this work was to elucidate the anticancer mechanisms of action of linalool in hepatocellular carcinoma (HCC) HepG2 cells. MAIN METHODS: Cell viability and proliferation were determined by WST-1 assay and BrdU incorporation, respectively. Cell cycle analysis was assessed through flow cytometry (FC) and western blot (WB). Apoptosis was determined by caspase-3 activity, TUNEL assay and WB...
April 15, 2018: Life Sciences
https://www.readbyqxmd.com/read/29496180/early-lc3-lipidation-induced-by-d-limonene-does-not-rely-on-mtor-inhibition-erk-activation-and-ros-production-and-it-is-associated-with-reduced-clonogenic-capacity-of-sh-sy5y-neuroblastoma-cells
#19
Laura Berliocchi, Carlotta Chiappini, Annagrazia Adornetto, Debora Gentile, Silvia Cerri, Rossella Russo, Giacinto Bagetta, Maria Tiziana Corasaniti
BACKGROUND: d-Limonene is a natural monoterpene abundant in Citrus essential oils. It is endowed with several biological activities, including inhibition of carcinogenesis and promotion of tumour regression. Recently, d-limonene has been shown to modulate autophagic markers in vitro at concentrations found in vivo, in clinical pharmacokinetic studies. Autophagy is an intracellular catabolic process serving as both an adaptive metabolic response and a quality control mechanism. Because autophagy defects have been linked to a wide range of human pathologies, including neurodegeneration and cancer, there is a need for new pharmacological tools to control deregulated autophagy...
February 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29492203/protein-biosynthesis-a-target-of-sorafenib-interferes-with-the-unfolded-protein-response-upr-and-ferroptosis-in-hepatocellular-carcinoma-cells
#20
Chloé Sauzay, Christophe Louandre, Sandra Bodeau, Frédéric Anglade, Corinne Godin, Zuzana Saidak, Jean-Xavier Fontaine, Cédric Usureau, Nathalie Martin, Roland Molinie, Julie Pascal, François Mesnard, Olivier Pluquet, Antoine Galmiche
Sorafenib is the first line treatment for advanced hepatocellular carcinoma (HCC). We explored its impact on the proteostasis of cancer cells, i.e. the processes that regulate the synthesis, maturation and turn-over of cellular proteins. We observed that sorafenib inhibits the production of the tumour marker alpha-foetoprotein (AFP) in two different HCC cell lines, an effect that correlated with a radical inhibition of protein biosynthesis. This effect was observed at clinically relevant concentrations of sorafenib and was not related to the effect of sorafenib on the transport of amino acids across the plasma membrane or the induction of the unfolded protein response (UPR)...
February 2, 2018: Oncotarget
keyword
keyword
12680
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"