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Hepatocarcinoma

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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
#1
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/29156349/biopolymer-gelatin-coated-zinc-oxide-nanoparticles-showed-high-antibacterial-antibiofilm-and-anti-angiogenic-activity
#2
Mani Divya, Baskaralingam Vaseeharan, Muthukumar Abinaya, Sekar Vijayakumar, Marimuthu Govindarajan, Naiyf S Alharbi, Shine Kadaikunnan, Jamal M Khaled, Giovanni Benelli
The use of natural polymers in drug design plays an important role in biomedical applications. Combinations of nanoparticles (NPs) and biopolymers have been shown to be useful for many purposes. This study focused on gelatin-coated zinc oxide NPs synthesized by co-precipitation. The particles were characterized by UV-Vis spectrum, showing a main peak at 375nm. The stability and crystalline nature of the particles was evaluated by Zeta potential and X-ray diffraction analysis. Fourier transform infrared spectroscopy (FTIR) revealed the possible functional groups of Ge-ZnO NPs, with strong bands at 3851, 3447, and 2923cm(-1)...
November 10, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/29152604/crosstalk-of-lkb1-and-pten-regulated-signals-in-liver-morphogenesis-and-tumor-development
#3
Chengyou Jia, Vivian Medina, Chenchang Liu, Lina He, Daohai Qian, Tu Taojian, Curtis T Okamoto, Bangyan L Stiles
Liver kinase B 1 (LKB1 or STK11) and PTEN (phosphatase and tensin homologue deleted on chromosome 10) are two tumor suppressors that regulate the mTOR signaling pathway. Deletion studies show that loss of either Lkb1 (Lkb(+/-) ) or Pten (Pten(loxP/loxP); Alb-Cre(+) ) leads to liver injury and development of hepatocarcinoma. In this study, we investigated the crosstalk of LKB1 and PTEN loss during tumorigenesis and liver development. We show here that haplo-insufficiency of Lkb1 in the liver leads to advanced tumor development in the Pten null mice (Pten(loxP/loxP); Lkb(loxP/+); Alb-Cre(+) )...
April 2017: Hepatol Commun
https://www.readbyqxmd.com/read/29152133/prognostic-significance-of-xrcc4-expression-in-hepatocellular-carcinoma
#4
Jun Lu, Xing-Zhizi Wang, Tian-Qi Zhang, Xiao-Ying Huang, Jin-Guang Yao, Chao Wang, Zhong-Hong Wei, Yun Ma, Xue-Min Wu, Chun-Ying Luo, Qiang Xia, Xi-Dai Long
Background: Our previous investigations have shown that the variants of X-ray repair complementing 4 (XRCC4) may be involved in hepatocellular carcinoma (hepatocarcinoma) tumorigenesis. This study aimed to investigate the possible prognostic significance of XRCC4 expression for hepatocarcinoma patients and possible value for the selection of transarterial chemoembolization (TACE) treatment. Materials and Methods: We conducted a hospital-based retrospective analysis (including 421 hepatocarcinoma cases) to analyze the effects of XRCC4 on hepatocarcinoma prognosis and TACE...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29142472/prostaglandin-e1-protects-hepatocytes-against-endoplasmic-reticulum-stress-induced-apoptosis-via-protein-kinase-a-dependent-induction-of-glucose-regulated-protein-78-expression
#5
Fang-Wan Yang, Yu Fu, Ying Li, Yi-Huai He, Mao-Yuan Mu, Qi-Chuan Liu, Jun Long, Shi-De Lin
AIM: To investigate the protective effect of prostaglandin E1 (PGE1) against endoplasmic reticulum (ER) stress-induced hepatocyte apoptosis, and to explore its underlying mechanisms. METHODS: Thapsigargin (TG) was used to induce ER stress in the human hepatic cell line L02 and hepatocarcinoma-derived cell line HepG2. To evaluate the effects of PGE1 on TG-induced apoptosis, PGE1 was used an hour prior to TG treatment. Activation of unfolded protein response signaling pathways were detected by western blotting and quantitative real-time RT-PCR...
October 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29137257/kaempferol-induces-hepatocellular-carcinoma-cell-death-via-endoplasmic-reticulum-stress-chop-autophagy-signaling-pathway
#6
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/29125839/csseverin-inhibits-apoptosis-through-mitochondria-mediated-pathways-triggered-by-ca2-dyshomeostasis-in-hepatocarcinoma-plc-cells
#7
Mengchen Shi, Lina Zhou, Lu Zhao, Mei Shang, Tongtong He, Zeli Tang, Hengchang Sun, Pengli Ren, Zhipeng Lin, Tingjin Chen, Jinyun Yu, Jin Xu, Xinbing Yu, Yan Huang
BACKGROUND: Numerous experimental and epidemiological studies have demonstrated a link between Clonorchis sinensis (C. sinensis) infestation and cholangiocarcinoma (CCA) as well as hepatocellular carcinoma (HCC). The underlying molecular mechanism involved in the malignancy of CCA and HCC has not yet been addressed. Csseverin, a component of the excretory/secretory products of C. sinensis (CsESPs), was confirmed to cause obvious apoptotic inhibition in the human HCC cell line PLC. However, the antiapoptotic mechanism is unclear...
November 10, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29123480/impairment-of-mitochondrial-biogenesis-and-dynamics-involved-in-isoniazid-induced-apoptosis-of-hepg2-cells-was-alleviated-by-p38-mapk-pathway
#8
Tianguang Zhang, Takashi Ikejima, Lizhong Li, Ruiqin Wu, Xiaoyan Yuan, Jun Zhao, Yimei Wang, Shuangqing Peng
Isoniazid (INH), a widely used first-line antitubercular drug, has been noted to be associated with hepatotoxicity. In spite of extensive researches over many decades, the mechanism of INH-induced hepatotoxicity still remains poorly understood. Recently, mitochondrial toxicity has been emerging as a new paradigm for INH-induced hepatotoxicity. In this study, we showed that INH impaired mitochondrial biogenesis and dynamics in human hepatocarcinoma HepG2 cells. INH reduced mitochondrial membrane potential (MMP) and induced mitochondria swelling...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29120793/modification-of-the-cellular-antioxidant-activity-caa-assay-to-study-phenolic-antioxidants-in-a-caco-2-cell-line
#9
Mary E Kellett, Phillip Greenspan, Ronald B Pegg
In vitro assays are widely used to analyze the antioxidant potential of compounds, but they cannot accurately predict antioxidant behavior in living systems. Cell-based assays, like the cellular antioxidant activity (CAA) assay, are gaining importance as they provide a biological perspective. When the CAA assay was employed to study phenolic antioxidants using hepatocarcinoma (HepG2) cells, quercetin showed antioxidant activity in HepG2 cells; 25 and 250μM quercetin reduced fluorescence by 17.1±0.9% and 58...
April 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29117589/chronic-exposure-of-nanomolar-mc-lr-caused-oxidative-stress-and-inflammatory-responses-in-hepg2-cells
#10
Junguo Ma, Yuanyuan Li, Hongying Duan, Rajeshkumar Sivakumar, Xiaoyu Li
Low dose but long-term exposure of microcystin-LR (MC-LR) could induce human hepatitis and promote liver cancer according to epidemiological investigation results, but the exact mechanism has not been completely elucidated. In the present study, a chronic toxicity test of MC-LR exposure on HepG2 cells at 0.1-30 nM for 83 d was conducted under laboratory conditions. The western blot assay result revealed that MC-LR entered HepG2 cells, even at the concentration of 0.1 nM, after 83 d of exposure, but no cytotoxicity was observed in the HepG2 cells, as determined by the CCK-8 and LDH tests...
October 31, 2017: Chemosphere
https://www.readbyqxmd.com/read/29113167/endocan-silencing-induces-programmed-cell-death-in-hepatocarcinoma
#11
Jinghui Yang, Shihou Sheng, Qiwei Yang, Li Li, Shaoyou Qin, Shan Yu, Xuewen Zhang
Hepatocarcinoma is a type of high-grade malignant carcinoma identified worldwide. Its rapid development and late diagnosis prevents effective tumor resection in the majority of patients, and therefore recent studies have targeted metabolic signaling pathways and the tumor microenvironment for potential treatments. To investigate whether endocan may be a gene target for hepatocarcinoma treatment, the present study employed the following measures: MTT and Transwell assays, flow cytometry, western blotting and an mRFP-GFP-LC3 double fluorescence system...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29108656/hepatocellular-carcinoma-treatment-ablation-and-arterial-embolization
#12
J I Bilbao, M Páramo, J M Madrid, A Benito
Percutaneous and endovascular techniques take an important role in the therapeutic management of patients with hepatocarcinoma. Different techniques of percutaneous ablation, especially indicated in tumors up to 2cm diameter offer, at least, similar results to surgical resection. Taking advantage of double hepatic vascularization and exclusive tumor nutrition by the artery, several endovascular techniques of treating the tumor have been developed. Intra-arterial administration of embolizing particles, alone or charged with drug (chemoembolization), will produce ischemia and consequent necrosis with excellent results in selected patients...
November 3, 2017: Radiología
https://www.readbyqxmd.com/read/29103765/downregulation-of-mir-200a-3p-induced-by-hepatitis-b-virus-x-hbx-protein-promotes-cell-proliferation-and-invasion-in-hbv-infection-associated-hepatocarcinoma
#13
Taiyang Shi, Qinfang Hua, Zhipeng Ma, Qijun Lv
BACKGROUND: Hepatitis B Virus X (HBx) Protein encoded by HBV is believed to be the major player in the process of HBV-induced oncogenesis. Ectopic expression of miR-200a-3p was reported to be associated with diverse tumorigenesis. This study aimed to better understand the role of miR-200a-3p and its correlation with HBx in HBV-induced hepatocellular carcinoma (HCC). METHODS: In this report, we examined the gene expression using quantitative RT-PCR and protein expression using Western blotting analysis...
October 26, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29100313/g2-m-checkpoint-plays-a-vital-role-at-the-early-stage-of-hcc-by-analysis-of-key-pathways-and-genes
#14
Li Yin, Cuifang Chang, Cunshuan Xu
The present study was designed to explore the molecular mechanism at the early stage of hepatocarcinoma (HCC) and identify the candidate genes and pathways changed significantly. We downloaded the gene expression file dataset GSE6764 from GEO, adopted the Robust Multi-array Average (RMA) algorithm to preprocess the raw file. 797 differentially expressed genes (DEGs) were screened out based on the SAM method using R language. Ingenuity Pathway Analysis (IPA) was used to perform canonical pathway analysis in order to calculate the most significantly changed pathways and predict the upstream regulators...
September 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29094729/chinese-herbal-formula-fuzheng-huayu-alleviates-ccl4-induced-liver-fibrosis-in-rats-a-transcriptomic-and-proteomic-analysis
#15
Shu Dong, Fei-Fei Cai, Qi-Long Chen, Ya-Nan Song, Yang Sun, Bin Wei, Xiao-Yan Li, Yi-Yang Hu, Ping Liu, Shi-Bing Su
Liver fibrosis is a consequence of chronic liver disease that can progress to liver cirrhosis or even hepatocarcinoma. Fuzheng Huayu (FZHY), a Chinese herbal formula, has been shown to exert anti-fibrotic effects. To better understand the molecular mechanisms underlying the anti-fibrotic effects of FZHY, we analyzed transcriptomic and proteomic combination profiles in CCl4-induced liver fibrosis in rats, which were treated with extracted FZHY powder (0.35 g/kg/d, ig) for 3 weeks. We showed that FZHY administration significantly improved liver function, alleviated hepatic inflammatory and fibrotic changes, and decreased the hydroxyproline content in the livers of CCl4-treated rats...
November 2, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29055135/treatment-of-prurigo-with-methotrexate-a-multicenter-retrospective-study-of-39-cases-running-head-treatment-of-prurigo-with-methotrexate
#16
T Klejtman, M Beylot-Barry, P Joly, M A Richard, S Debarbieux, L Misery, P Wolkenstein, O Chosidow, S Ingen-Housz-Oro
BACKGROUND: Prurigo is a common primary pruritic condition. Treatment is challenging. Methotrexate (MTX) is effective for the treatment of pruriginous dermatoses, but its use in prurigo has been little studied. OBJECTIVES: To investigate the efficacy and safety of MTX in the treatment of difficult-to-treat prurigo. METHODS: Patients from six university dermatology departments treated with MTX between 2006 and 2016 for difficult-to-treat prurigo (i...
October 21, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29039799/solvent-free-addition-of-indole-to-aldehydes-unexpected-synthesis-of-novel-1-1-1h-indol-3-yl-alkyl-1h-indoles-and-preliminary-evaluation-of-their-cytotoxicity-in-hepatocarcinoma-cells
#17
Graziella Tocco, Gloria Zedda, Mariano Casu, Gabriella Simbula, Michela Begala
New 1-[1-(1H-indol-3-yl) alkyl]-1H-indoles, surprisingly, have been obtained from the addition of indole to a variety of aldehydes under neat conditions. CaO, present in excess, was fundamental for carrying out the reaction with paraformaldehyde. Under the same reaction conditions, aromatic and heteroaromatic aldehydes afforded only classical bis (indolyl) aryl indoles. In this paper, the role of CaO, together with the regiochemistry and the mechanism of the reaction, are discussed in detail. The effect of some selected 3,3'- and 1,3'-diindolyl methane derivatives on cell proliferation of the hepatoma cell line FaO was also evaluated...
October 17, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29039561/hovenia-dulcis-thunb-and-its-active-compound-ampelopsin-inhibit-angiogenesis-through-suppression-of-vegfr2-signaling-and-hif-1%C3%AE-expression
#18
Jang Mi Han, Haet Nim Lim, Hye Jin Jung
Specific inhibition of angiogenesis has been considered a powerful strategy for the treatment of cancer and other angiogenesis-related human diseases. Hovenia dulcis Thunb., Japanese raisin tree or Oriental raisin tree, is a hardy tree found in Asia, Eastern China and Korea and has been known to possess various biological activities, including antifatigue, antidiabetic, neuroprotective and hepatoprotective activity. In the present study, for the first time, we evaluated whether a 100% ethanol extract of Hovenia dulcis Thunb...
October 11, 2017: Oncology Reports
https://www.readbyqxmd.com/read/29033772/intraparenchymal-hemorrhage-due-to-brain-metastasis-of-hepatocellular-carcinoma
#19
Rafael Sartori Balbinot, Ana Laura Facco Muscope, Mateus Dal Castel, Silvana Sartori Balbinot, Raul Angelo Balbinot, Jonathan Soldera
Although extrahepatic metastases from hepatocellular carcinoma (HCC) are present in only 5-15% of cases, they are certainly factors associated with poor prognosis. The main sites include lung, lymph nodes, bones, and adrenal glands, in descending order. Metastasis in the central nervous system is extremely rare, and the incidences vary from 0.6 to 1.7%. We report a case of a 54-year-old man previously diagnosed with alcohol-induced cirrhosis of the liver and HCC. The patient was admitted presenting progressive left hemiparesis and headache which started 2 days earlier, with no history of cranioencephalic trauma...
September 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/29024701/dha-and-pgpma-dual-modified-ph-sensitive-polymeric-micelles-for-target-treatment-of-liver-cancer
#20
Haojun Ma
In clinical therapy, the poor prognosis of hepatocellular carcinoma (HCC) is mainly attributed to the failure of chemotherapeutical agents to accumulate in tumor as well as lack of potency of tumor penetration. In this work, we developed actively tumor-targeting micelles with pH-sensitive linker as a novel nanocarrier for HCC therapy. These micelles comprised of biodegradable PEG-pAsp polymers, in which PTX can be covalently conjugated to pAsp via an acid-labile acetal bond to form pH-responsive structures...
October 9, 2017: Journal of Pharmaceutical Sciences
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