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https://www.readbyqxmd.com/read/28334689/design-characterization-and-in-vitro-evaluation-of-linalool-loaded-solid-lipid-nanoparticles-as-potent-tool-in-cancer-therapy
#1
Boris Rodenak-Kladniew, German A Islan, Margarita G de Bravo, Nelson Durán, Guillermo R Castro
Linalool (LN) is a monoterpene found in essential oils of plants and herbs that produces multiple effects on the mevalonate pathway and interesting antiproliferative activity in cancer cells. However, due to its poor aqueous solubility, an efficient vehicle is needed to improve its administration and bioavailability in physiological media. LN encapsulation in solid lipid nanoparticles (SLN) with different compositions was explored and in vitro tested in two cancer cell lines. SLN of myristyl myristate (MM), cetyl esters (SS) and cetyl palmitate (CP) were prepared by sonication in the presence of Pluronic(®)F68 as surfactant...
March 9, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28333073/effects-of-melatonin-on-liver-injuries-and-diseases
#2
REVIEW
Jiao-Jiao Zhang, Xiao Meng, Ya Li, Yue Zhou, Dong-Ping Xu, Sha Li, Hua-Bin Li
Liver injuries and diseases are serious health problems worldwide. Various factors, such as chemical pollutants, drugs, and alcohol, could induce liver injuries. Liver diseases involve a wide range of liver pathologies, including hepatic steatosis, fatty liver, hepatitis, fibrosis, cirrhosis, and hepatocarcinoma. Despite all the studies performed up to now, therapy choices for liver injuries and diseases are very few. Therefore, the search for a new treatment that could safely and effectively block or reverse liver injuries and diseases remains a priority...
March 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28331561/imatinib-induces-up-regulation-of-nm23-a-metastasis-suppressor-gene-in-human-hepatocarcinoma-hepg2-cell-line
#3
Behta Keshavarz-Pakseresht, Seyed Ataollah Sadat Shandiz, Fahimeh Baghbani-Arani
AIM: The present study investigated the anti-tumor activity of Imatinib mesylate through modulation of NM23 gene expression in human hepatocellular carcinoma (HepG2) cell line. BACKGROUND: Hepatocellular carcinoma (HCC) is considered to be the third leading cause of cancer related death worldwide. Down regulation of NM23, a metastasis suppressor gene, has been associated with several types of malignant cancer. Recently, effects of Imatinib mesylate, a first member of tyrosine kinases inhibitors, were indicated in research and treatment of different malignant tumors...
2017: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/28302717/regulatory-signatures-of-liver-regeneration-distilled-by-integrative-analysis-of-mrna-histone-methylation-and-proteomics
#4
Yoshihiro Sato, Yasutake Katoh, Mitsuyo Matsumoto, Masaki Sato, Masayuki Ebina, Ari Itoh-Nakadai, Ryo Funayama, Keiko Nakayama, Michiaki Unno, Kazuhiko Igarashi
The capacity of the liver to regenerate is likely to be encoded as a plasticity of molecular networks within the liver. By applying a combination of comprehensive analyses of the epigenome, transcriptome and proteome, we herein depict the molecular landscape of liver regeneration. We demonstrated that histone H3K4 was tri-methylated at the promoter regions of many loci, among which only a fraction including cell-cycle-related genes were transcriptionally up-regulated. A cistrome analysis guided by the histone methylation patterns and the transcriptome identified FOXM1 as the key transcription factor promoting liver regeneration, which was confirmed in vitro using a hepatocarcinoma cell line...
March 16, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28276242/cellular-uptake-mechanism-of-cationic-branched-polypeptides-with-poly-l-lys-backbone
#5
Rita Szabó, Mónika Sebestyén, György Kóczán, Ádám Orosz, Gábor Mező, Ferenc Hudecz
Cationic macromolecular carriers can be effective carriers for small molecular compounds, drugs, epitopes, or nucleic acids. Polylysine-based polymeric branched polypeptides have been systematically studied on the level of cells and organisms as well. In the present study, we report our findings on the cellular uptake characteristics of nine structurally related polylysine-based polypeptides with cationic side chains composed of (i) single amino acid (poly[Lys(Xi)], XiK) or (ii) oligo[dl-alanine] (poly[Lys(dl-Alam)], AK) or (iii) oligo[dl-alanine] with an additional amino acid (X) at the terminal position (poly[Lys(Xi-dl-Alam)] (XAK)) or (iv) at the position next to the polylysine backbone (poly[Lys(dl-Alam-Xi)] (AXK))...
March 9, 2017: ACS Combinatorial Science
https://www.readbyqxmd.com/read/28265634/metabolic-profiling-study-of-shikonin-s-cytotoxic-activity-in-the-huh7-human-hepatoma-cell-line
#6
E D Spyrelli, A V Kyriazou, C Virgiliou, A Nakas, O Deda, V P Papageorgiou, A N Assimopoulou, H G Gika
Shikonin and its enantiomer alkannin, which are natural products, have been extensively studied in vitro and in vivo for, among others, their antitumor activity. The investigation of the molecular pathways involved in their action is of interest, since they are not yet clearly defined. Metabolic profiling in cells can provide a picture of a cell's phenotype upon intervention, assisting in the elucidation of the mechanism of action. In this study, the cytotoxic effect of shikonin on a human hepatocarcinoma cell line was studied...
March 7, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28264430/characterization-of-a-new-trioxilin-and-a-sulfoquinovosyl-diacylglycerol-with-anti-inflammatory-properties-from-the-dinoflagellate-oxyrrhis-marina
#7
Eun Young Yoon, A Reum Yang, Jaeyeon Park, Seung Joo Moon, Eun Ju Jeong, Jung-Rae Rho
Two new compounds-a trioxilin and a sulfoquinovosyl diacylglycerol (SQDG)-were isolated from the methanolic extract of the heterotrophic dinoflagellate Oxyrrhis marina cultivated by feeding on dried yeasts. The trioxilin was identified as (4Z,8E,13Z,16Z,19Z) -7(S),10(S),11(S)-trihydroxydocosapentaenoic acid (1), and the SQDG was identified as (2S)-1-O-hexadecanosy-2-O-docosahexaenoyl-3-O-(6-sulfo-α-d-quinovopyranosyl)-glycerol (2) by a combination of nuclear magnetic resonance (NMR) spectra, mass analyses, and chemical reactions...
February 27, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28260799/bisindolylmaleimide-alkaloid-bma-155cl-induces-autophagy-and-apoptosis-in-human-hepatocarcinoma-hepg-2-cells-through-the-nf-%C3%AE%C2%BAb-p65-pathway
#8
Xiao Sun, Lin Li, Hong-Guang Ma, Pu Sun, Qi-Lin Wang, Ting-Ting Zhang, Yue-Mao Shen, Wei-Ming Zhu, Xia Li
Bisindolylmaleimides, a series of derivatives of a PKC inhibitor staurosporine, exhibit potential as anti-cancer drugs and have received considerable attention in clinical trials. This study aims to investigate the effects of a bisindolylmaleimide alkaloid 155Cl (BMA-155Cl) with a novel structure on autophagy and apoptosis in human hepatocarcinoma HepG-2 cells in vitro and in vivo. The cell poliferation was assessed with a MTT assay. Autophagy was evaluated by MDC staining and TEM analysis. Apoptosis was investigated using Annexin V-FITC/PI and DAPI staining...
March 6, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28260109/absence-of-malat1-does-not-prevent-den-induced-hepatocarcinoma-in-mice
#9
Stéphanie Miard, Marie-Josée Girard, Philippe Joubert, Sophie Carter, Amy Gonzales, Huiping Guo, Benjamin Morpurgo, Louise Boivin, Andrei Golovko, Frédéric Picard
Long non-coding RNAs (lncRNA) are key regulators of gene expression both at the transcriptional and post-transcriptional levels. The lncRNA metastasis associated lung adenocarcinoma transcript 1 (Malat1) is overexpressed in many types of cancer, including hepatocarcinoma, and induces cell proliferation in several cell lines in vitro. However, the direct causal effects of Malat1 on hepatocyte proliferation and liver carcinogenesis in vivo are not fully understood. To better determine the contribution of Malat1 to hepatocarcinoma oncogenesis, this study was aimed at testing the hypothesis that its absence confers resistance to the development of liver tumors...
February 20, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28260016/effects-of-r-type-and-s-type-ginsenoside-rg3-on-dna-methylation-in-human-hepatocarcinoma-cells
#10
Siying Teng, Yi Wang, Pingya Li, Jinhua Liu, Anhui Wei, Haotian Wang, Xiangkun Meng, Di Pan, Xinmin Zhang
Ginsenoside Rg3, a bioactive constituent isolated from Panax ginseng, exhibits antitumorigenic, antioxidative, antiangiogenic, neuroprotective and other biological activities are associated with the regulation of multiple genes. DNA methylation patterns, particularly those in the promoter region, affect gene expression, and DNA methylation is catalyzed by DNA methylases. However, whether ginsenoside Rg3 affects DNA methylation is unknown. High performance liquid chromatography assay, MspI/HpaII polymerase chain reaction (PCR) and reverse transcription‑quantitative PCR were performed to assess DNA methylation...
February 28, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28258038/viability-reducing-activity-of-coryllus-avellana-l-extracts-against-human-cancer-cell-lines
#11
Ana Gallego, Isidoro Metón, Isabel V Baanante, Jamal Ouazzani, Emilie Adelin, Javier Palazon, Mercedes Bonfill, Elisabeth Moyano
The increasing rate of cancer incidence has encouraged the search for novel natural sources of anticancer compounds. The presence of small quantities of taxol and taxanes in Corylus avellana L. has impelled new potential applications for this plant in the field of biomedicine. In the present work, the cell viability-reducing activity of stems and leaves from three different hazel trees was studiedagainst three human-derived cancer cell lines (HeLa, HepG2 and MCF-7). Both leaf and stem extracts significantly reduced viability of the three cell lines either after maceration with methanol or using taxane extraction methods...
February 28, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28239300/mir-7-inhibits-progression-of-hepatocarcinoma-by-targeting-klf-4-and-promises-a-novel-diagnostic-biomarker
#12
Weizhong Wu, Sanguang Liu, Yunfei Liang, Zegao Zhou, Xueqing Liu
BACKGROUND: MicroRNAs are 22-24 nt non-coding RNAs that bind to the 3' UTR of target mRNAs, thereby inducing mRNA degradation or inhibiting mRNA translation. Due to their implication in the regulation of post-transcriptional processes, the role of miRNAs in hepatocellular carcinoma (HCC) has been extensively studied. However, the function of miR-7 in HCC remains to be demonstrated. METHODS: 50 paired HCC tissues and matched peritumor tissues from patients were collected...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28237828/the-development-of-hepatocarcinoma-after-long-term-antivirus-treatment-of-chinese-patients-with-chronic-hepatitis-b-virus-infection-incidence-long-term-outcomes-and-predictive-factors
#13
Zhi-Qin Li, Chun-Ling Hu, Ping Yu, Xin-Yu Gu, Jia-Jia Zhang, Hua Li, Hong-Yu Zhang, Jun Lv, Yan-Min Liu, Qing-Lei Zeng, Jing-Ya Yan, Zu-Jiang Yu, Yi Zhang
BACKGROUND: Patients with chronic hepatitis B virus (HBV) infection are at high risk for progressing to decompensated cirrhosis and hepatocellular carcinoma (HCC). Although long-term treatment with nucleos(t)ide analogues (NAs) benefits patients with chronic hepatitis B (CHB), many develop HCC. Therefore, the clinical outcomes of patients CHB who undergo long-term treatment with NAs remain to be identified. The aim of this study therefore was to evaluate the risk and predictors of patients with CHB who develop hepatitis B-induced HCC...
February 22, 2017: Clinics and Research in Hepatology and Gastroenterology
https://www.readbyqxmd.com/read/28224616/critical-cholangiocarcinogenesis-control-by-cryptochrome-clock-genes
#14
Ali Mteyrek, Elisabeth Filipski, Catherine Guettier, Malgorzata Oklejewicz, Gijsbertus T J van der Horst, Alper Okyar, Francis Lévi
A coordinated network of molecular circadian clocks in individual cells generates 24-hour rhythms in liver metabolism and proliferation. Circadian disruption through chronic jet lag or Per2 clock gene mutation was shown to accelerate hepatocarcinoma development in mice. Since divergent effects were reported for clock genes Per and Cry regarding xenobiotic toxicity, we questioned the role of Cry1 and Cry2 in liver carcinogenesis. Male WT and Cry1(-/-) Cry2(-/-) mice (C57Bl/6 background) were chronically exposed to diethylnitrosamine (DEN) at ZT11...
February 22, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28219646/primary-squamous-cell-carcinoma-of-the-thyroid-initial-assessment-and-follow-up-using-18-f-fdg-pet-ct
#15
L Caballero Gullón, E Carmona González, A Martínez Estévez, M P Gómez Camarero, J J Corral, I Borrego Dorado
Squamous cell carcinoma of thyroid is an uncommon, very aggressive neoplasm, having a poor prognosis and poor response to chemotherapy and radiotherapy. Surgery is the initial treatment of choice, although it often presents as a widespread disease at the time of diagnosis, usually with cervical swelling that causes most of the symptoms due to local infiltration or metastasis. Local infiltration from adjacent tumour and metastatic disease needs to be excluded from other primary epidermoid carcinomas, in order to make a correct diagnosis...
February 16, 2017: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/28218434/designed-synthesis-of-lipid-coated-polyacylic-acid-calcium-phosphate-nanoparticles-as-dual-ph-responsive-drug-delivery-vehicles-for-cancer-chemotherapy
#16
Xin Wang, Manjie Zhang, Lingyu Zhang, Lu Li, Shengnan Li, Chungang Wang, Zhongmin Su, Yue Yuan, Weisan Pan
We report here a facile strategy to prepare supported lipid bilayer-coated polyacylic acid/calcium phosphate nanoparticles (designated as PAA/CaP@SLB NPs) as a new dual pH-responsive drug delivery platform for cancer chemotherapy. The synthesized PAA/CaP NPs exhibited both high payload of doxorubicin (DOX) and dual pH-responsive drug release properties, in addition, the coated lipid bilayer had the ability to enhance the cellular uptake of PAA/CaP NPs without affecting the pH-responsive drug release. Moreover, the blank PAA/CaP@SLB NPs exhibited excellent biocompatibility, and the DOX-loaded PAA/CaP@SLB NPs markedly increased the cellular accumulation of DOX and its cytotoxic effects on HepG-2 cells...
February 20, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28214706/influence-of-oxygen-partial-pressure-on-the-characteristics-of-human-hepatocarcinoma-cells
#17
Jenifer Trepiana, Susana Meijide, Rosaura Navarro, M Luisa Hernández, José Ignacio Ruiz-Sanz, M Begoña Ruiz-Larrea
Most of the in vitro studies using liver cell lines have been performed under atmospheric oxygen partial pressure (21% O2). However, the oxygen concentrations in the liver and cancer cells are far from this value. In the present study, we have evaluated the influence of oxygen on 1) the tumor cell lines features (growth, steady-state ROS levels, GSH content, activities of antioxidant enzymes, p66 Shc and SOD expressions, metalloproteinases secretion, migration, invasion, and adhesion) of human hepatocellular carcinoma cell lines, and b) the response of the cells to an oxidant stimulus (aqueous leaf extract of the V...
February 13, 2017: Redox Biology
https://www.readbyqxmd.com/read/28213878/cotransfecting-norepinephrine-transporter-and-vesicular-monoamine-transporter-2-genes-for-increased-retention-of-metaiodobenzylguanidine-labeled-with-iodine-131-in-malignant-hepatocarcinoma-cells
#18
Yanlin Zhao, Xiao Zhong, Xiaohong Ou, Huawei Cai, Xiaoai Wu, Rui Huang
Norepinephrine transporter (NET) transfection leads to significant uptake of iodine-131-labeled metaiodobenzylguanidine ((131)I-MIBG) in non-neuroendocrine tumors. However, the use of (131)I-MIBG is limited by its short retention time in target cells. To prolong the retention of (131)I-MIBG in target cells, we infected hepatocarcinoma (HepG2) cells with Lentivirus-encoding human NET and vesicular monoamine transporter 2 (VMAT2) genes to obtain NET-expressing, NET-VMAT2-coexpressing, and negative-control cell lines...
February 17, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28209522/the-role-of-alkaline-phosphatase-in-intracellular-lipid-accumulation-in-the-human-hepatocarcinoma-cell-line-hepg2
#19
George M Chirambo, Chantal van Niekerk, Nigel J Crowther
Inhibition of tissue non-specific alkaline phosphatase (TNALP) decreases intracellular lipid accumulation in human preadipocytes and the murine preadipocyte cell line, 3T3-L1. Therefore, the current study was performed to determine if TNALP is required for intracellular lipid deposition in the human hepatocyte cell line, HepG2. Intracellular lipid accumulation, TNALP activity and peroxisome proliferator activated receptor (PPAR) γ gene expression were measured in HepG2 and 3T3-L1 cells in the presence and absence of the TNALP inhibitors levamisole and histidine...
February 13, 2017: Experimental and Molecular Pathology
https://www.readbyqxmd.com/read/28209511/heparanase-1-induced-shedding-of-heparan-sulfate-from-syndecan-1-in-hepatocarcinoma-cell-facilitates-lymphatic-endothelial-cell-proliferation-via-vegf-c-erk-pathway
#20
Shengjin Yu, Huiming Lv, He Zhang, Yu Jiang, Yu Hong, Rongjun Xia, Qifang Zhang, Weiwei Ju, Lili Jiang, Geng Ou, Jinhui Zhang, Shujing Wang, Jianing Zhang
Heparanase-1/syndecan-1 axis plays critical roles in tumorigenesis and development. The main mechanism includes heparanase-1 (HPA-1) degrades the heparan sulfate chain of syndecan-1 (SDC-1), and the following shedding of heparan sulfate from tumor cell releases and activates SDC-1 sequestered growth factors. However, the significance of Heparanase-1/syndecan-1 axis and its effects on the microenvironment of lymphatic metastasis in hepatocellular carcinogenesis (HCC) procession have not been reported. Herein, we found that HPA-1 could degrade the heparan sulfate on hepatocarcinoma cell surface...
April 1, 2017: Biochemical and Biophysical Research Communications
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