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https://www.readbyqxmd.com/read/29327320/phylogenetic-analysis-and-biological-evaluation-of-marine-endophytic-fungi-derived-from-red-sea-sponge-hyrtios-erectus
#1
Mervat Morsy Abbas Ahmed El-Gendy, Shaymaa M M Yahya, Ahmed R Hamed, Maha M Soltan, Ahmed Mohamed Ahmed El-Bondkly
Forty-four endophytic fungal isolates obtained from marine sponge, Hyrtios erectus, were evaluated and screened for their hydrolase activities. Most of the isolates were found to be prolific producers of hydrolytic enzymes. Only 11 isolates exhibited maximum cellular contents of lipids, rhamnolipids, and protein in the fungal isolates under the isolation numbers MERVA5, MERVA22, MERVA25, MERVA29, MERVA32, MERVA34, MERV36, MERVA39, MERVA42, MERVA43, and MERVA44. These isolate extracts exhibit the highest reducing activities against carbohydrate-metabolizing enzymes including α-amylase, α-glucosidase, β-glucosidase, β-glucuronidase, and tyrosinase...
January 12, 2018: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/29325602/bile-acid-metabolism-in-liver-pathobiology
#2
John Y L Chiang, Jessica M Ferrell
Bile acids facilitate intestinal nutrient absorption and biliary cholesterol secretion to maintain bile acid homeostasis, which is essential for protecting liver and other tissues and cells from cholesterol and bile acid toxicity. Bile acid metabolism is tightly regulated by bile acid synthesis in the liver and bile acid biotransformation in the intestine. Bile acids are endogenous ligands that activate a complex network of nuclear receptor farnesoid X receptor and membrane G protein-coupled bile acid receptor-1 to regulate hepatic lipid and glucose metabolic homeostasis and energy metabolism...
January 11, 2018: Gene Expression
https://www.readbyqxmd.com/read/29321577/8u-a-pro-apoptosis-cell-cycle-arrest-compound-suppresses-invasion-and-metastasis-through-hsp90%C3%AE-downregulating-and-pi3k-akt-inactivation-in-hepatocellular-carcinoma-cells
#3
Ning Wang, Shaopeng Chen, Bin Zhang, Shangfu Li, Feng Jin, Dan Gao, Hongxia Liu, Yuyang Jiang
8u, an acridine derivative, has been proved effective anti-hepatocarcinoma effect, while the underlying mechanism remains unclear. Here, metabolomics and proteomics approaches were applied to study its anti-cancer mechanism and explore its effect on HepG2 cells' invasion and metastasis abilities. The results showed that 8u significantly suppressed HepG2 cells migration and enhanced cell-to-cell junctions. The inhibition effect of 8u on invasion and metastasis disappeared after HSP90α gene silencing, and was reversed after HSP90α overexpression...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29320411/inihibition-of-glycolysis-by-using-a-micro-nano-lipid-bromopyruvic-chitosan-carrier-as-a-promising-tool-to-improve-treatment-of-hepatocellular-carcinoma
#4
Nemany A Hanafy, Luciana Dini, Cinzia Citti, Giuseppe Cannazza, Stefano Leporatti
Glucose consumption in many types of cancer cells, in particular hepatocellular carcinoma (HCC), was followed completely by over-expression of type II hexokinase (HKII). This evidence has been used in modern pharmacotherapy to discover therapeutic target against glycolysis in cancer cells. Bromopyruvate (BrPA) exhibits antagonist property against HKII and can be used to inhibit glycolysis. However, the clinical application of BrPA is mostly combined with inhibition effect for healthy cells particularly erythrocytes...
January 10, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29313660/enhancing-the-efficacy-and-safety-of-doxorubicin-against-hepatocellular-carcinoma-through-a-modular-assembly-approach-the-combination-of-polymeric-prodrug-design-nanoparticle-encapsulation-and-cancer-cell-specific-drug-targeting
#5
Li Xu, Shengjun Xu, Hangxiang Wang, Jun Zhang, Zun Chen, Linhui Pan, Jianguo Wang, Xuyong Wei, Hai-Yang Xie, Lin Zhou, Shusen Zheng, Xiao Xu
Intervention is urgently required to improve the therapeutic outcome for patients with unresectable hepatocellular carcinomas (HCCs). However, current chemotherapeutics, such as sorafenib and doxorubicin (DOX), provide only limited therapeutic benefits for this devastating disease. In this context, we present a modular assembly approach to the construction of a systemically injectable nanotherapeutic that can efficiently and safely deliver DOX in vivo. To achieve this goal, we covalently attached DOX to a polylactide (PLA) building block (Mw = 2600, n = 36), yielding DOX-PLA conjugate 1...
January 9, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29311419/radiogenomics-of-hepatocellular-carcinoma-multiregion-analysis-based-identification-of-prognostic-imaging-biomarkers-by-integrating-gene-data-a-preliminary-study
#6
Wei Xia, Ying Chen, Rui Zhang, Zhuangzhi Yan, Xiaobo Zhou, Bo Zhang, Xin Gao
To identify prognostic imaging biomarkers for hepatocellular carcinoma (HCC) in contrast-enhanced computed tomography (CECT) with biological interpretations by associating imaging features and gene modules. We retrospectively analyzed 371 patients who had gene expression profiles. For the 38 patients with CECT imaging data, automatic intra-tumor partition was performed resulting in three spatially distinct subregions. We extracted totally 37 quantitative imaging features describing intensity, geometry, and texture from each subregion...
January 9, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29296233/srebp-2-driven-transcriptional-activation-of-human-snd1-oncogene
#7
Sandra Armengol, Enara Arretxe, Leire Enzunza, Irati Llorente, Unai Mendibil, Hiart Navarro-Imaz, Begoña Ochoa, Yolanda Chico, María José Martínez
Upregulation of Staphylococcal nuclease and tudor domain containing 1 (SND1) is linked to cancer progression and metastatic spread. Increasing evidence indicates that SND1 plays a role in lipid homeostasis. Recently, it has been shown that SND1-overexpressing hepatocellular carcinoma cells present an increased de novo cholesterol synthesis and cholesteryl ester accumulation. Here we reveal that SND1 oncogene is a novel target for SREBPs. Exposure of HepG2 cells to the cholesterol-lowering drug simvastatin or to a lipoprotein-deficient medium triggers SREBP-2 activation and increases SND1 promoter activity and transcript levels...
December 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/29283331/mechanism-of-hepatitis-c-virus-induced-diabetes-mellitus
#8
Usman Ali Ashfaq, Hina Khalid
The hepatitis C virus (HCV), the most predominant cause of liver failure worldwide, is associated with the development of diabetes mellitus (DM) and insulin resistance (IR), both in vivo and in vitro. DM and IR aggravate the rate of fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). Most studies have revealed that patients with HCV are at a greater risk of developing type 2 diabetes (T2D), compared with controls or patients with hepatitis B. In the same way, patients with T2D are highly prone to severe HCV clinical outcomes and increased progression to fibrosis and cirrhosis, ultimately leading to HCC...
2017: Critical Reviews in Eukaryotic Gene Expression
https://www.readbyqxmd.com/read/29274368/knockdown-of-anillin-actin-binding-protein-blocks-cytokinesis-in-hepatocytes-and-reduces-liver-tumor-development-in-mice-without-affecting-regeneration
#9
Shuyuan Zhang, Liem H Nguyen, Kejin Zhou, Ho-Chou Tu, Alfica Sehgal, Ibrahim Nassour, Lin Li, Purva Gopal, Joshua Goodman, Amit G Singal, Adam Yopp, Yu Zhang, Daniel J Siegwart, Hao Zhu
BACKGROUND & AIMS: Cytokinesis can fail during normal post-natal liver development, leading to polyploid hepatocytes. We investigated whether inhibiting cytokinesis in the liver; slows tumor growth without compromising the health of normal hepatocytes. We inhibited cytokinesis in cancer cells by knocking down anillin actin binding protein (ANLN), a cytoskeletal scaffolding protein that regulates cytokinesis and might promote tumorigenesis, in mice with liver disease. METHODS: We analyzed clinical and gene expression data from The Cancer Genome Atlas, Oncomine, PrognoScan, and a hepatocellular carcinoma (HCC) tissue microarray...
December 20, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29233029/molecular-hepatoprotective-effects-of-lipoic-acid-against-carbon-tetrachloride-induced-liver-fibrosis-in-rats-hepatoprotection-at-molecular-level
#10
K M Sadek, E A Saleh, S M Nasr
BACKGROUND: Liver fibrosis is a noteworthy well-being issue that can prompt the progression of liver cirrhosis and hepatocellular carcinoma. Prominently, many antioxidants have been shown to have defensive impacts against liver fibrosis. AIM: Subsequently, in the present study, the viability of alpha-lipoic acid (α-LA) in ensuring against carbon tetrachloride (CCl4)-actuated liver fibrosis and the mechanism(s) involved in this defensive impact were considered in rats...
January 1, 2017: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29232555/mtorc2-promotes-tumorigenesis-via-lipid-synthesis
#11
Yakir Guri, Marco Colombi, Eva Dazert, Sravanth K Hindupur, Jason Roszik, Suzette Moes, Paul Jenoe, Markus H Heim, Isabelle Riezman, Howard Riezman, Michael N Hall
Dysregulated mammalian target of rapamycin (mTOR) promotes cancer, but underlying mechanisms are poorly understood. We describe an mTOR-driven mouse model that displays hepatosteatosis progressing to hepatocellular carcinoma (HCC). Longitudinal proteomic, lipidomics, and metabolomic analyses revealed that hepatic mTORC2 promotes de novo fatty acid and lipid synthesis, leading to steatosis and tumor development. In particular, mTORC2 stimulated sphingolipid (glucosylceramide) and glycerophospholipid (cardiolipin) synthesis...
December 11, 2017: Cancer Cell
https://www.readbyqxmd.com/read/29208982/peretinoin-an-acyclic-retinoid-inhibits-hepatocarcinogenesis-by-suppressing-sphingosine-kinase-1-expression-in-vitro-and-in-vivo
#12
Masaya Funaki, Juria Kitabayashi, Tetsuro Shimakami, Naoto Nagata, Yuriko Sakai, Kai Takegoshi, Hikari Okada, Kazuhisa Murai, Takayoshi Shirasaki, Takeru Oyama, Taro Yamashita, Tsuguhito Ota, Yoh Takuwa, Masao Honda, Shuichi Kaneko
Sphingosine-1-phospate is a potent bioactive lipid metabolite that regulates cancer progression. Because sphingosine kinase 1 and sphingosine kinase 2 (SPHK 1/2) are both essential for sphingosine-1-phospate production, they could be a therapeutic target in various cancers. Peretinoin, an acyclic retinoid, inhibits post-therapeutic recurrence of hepatocellular carcinoma via unclear mechanisms. In this study, we assessed effects of peretinoin on SPHK expression and liver cancer development in vitro and in vivo...
December 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29205034/augmentation-of-anticancer-drug-efficacy-in-murine-hepatocellular-carcinoma-cells-by-a-peripherally-acting-competitive-n-methyl-d-aspartate-nmda-receptor-antagonist
#13
Mikko Gynther, Ilaria Proietti Silvestri, Jacob C Hansen, Kasper B Hansen, Tarja Malm, Yevheniia Ishchenko, Younes Larsen, Liwei Han, Silke Kayser, Seppo Auriola, Aleksanteri Petsalo, Birgitte Nielsen, Darryl S Pickering, Lennart Bunch
The most common solid tumors show intrinsic multidrug resistance (MDR) or inevitably acquire such when treated with anticancer drugs. In this work, we describe the discovery of a peripherally restricted, potent, competitive NMDA receptor antagonist 1l by a structure-activity study of the broad-acting ionotropic glutamate receptor antagonist 1a. Subsequently, we demonstrate that 1l augments the cytotoxic action of sorafenib in murine hepatocellular carcinoma cells. The underlying biological mechanism was shown to be interference with the lipid signaling pathway, leading to reduced expression of MDR transporters and thereby an increased accumulation of sorafenib in the cancer cells...
December 5, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29204817/oxyphenbutazone-promotes-cytotoxicity-in-rats-and-hep3b-cellsvia-suppression-of-pge2-and-deactivation-of-wnt-%C3%AE-catenin-signaling-pathway
#14
Shakir Saleem, Ruqaiyah Khan, Muhammad Afzal, Imran Kazmi
Hepatocellular carcinoma (HCC) is the fifth leading cause of death and is generally typified by elevated liver enzyme biomarkers, antioxidants, and chronic inflammation of hepatocytes. Although currently available drugs have shown remarkable alleviation of the cancerous condition, but at the same time they present a more severe challenge of toxic effects due to chemotherapy. Therefore, in order to bring more patient-compliant therapy, we aimed to refurbish the use of a COX inhibitor, oxyphenbutazone (OPB), with low dose of methotrexate (MTX) to treat diethyl nitrosamine (DENA)-induced HCC in Wistar rats and in Hep3B cells...
December 4, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29197664/emerging-metabolic-risk-factors-in-hepatocellular-carcinoma-and-their-influence-on-the-liver-microenvironment
#15
REVIEW
Pasquale Agosti, Carlo Sabbà, Antonio Mazzocca
Despite the reducing incidence of chronic hepatitis infections, an unexpected increasing incidence of hepatocellular carcinoma (HCC) has being occurred. This may be explained by the increasing number of HCCs developing on steatosis (NAFLD) and steatohepatitis (NASH), related to metabolic risk factors (i.e. diabetes mellitus type II, obesity, metabolic syndrome), which are becoming emerging risk factors for HCC. This led to a growing scientific interest on the oncogenic mechanisms underlying the transition from NAFLD to HCC...
November 29, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29182572/aberrant-lipid-metabolism-in-hepatocellular-carcinoma-revealed-by-liver-lipidomics
#16
Zhao Li, Ming Guan, Yu Lin, Xiao Cui, Yangyang Zhang, Zhenwen Zhao, Jiye Zhu
BACKGROUND: The aim of this study was to characterize the disorder of lipid metabolism in hepatocellular carcinoma (HCC). HCC is a worldwide disease. The research into the disorder of lipid metabolism in HCC is very limited. Study of lipid metabolism in liver cancer tissue may have the potential to provide new insight into HCC mechanisms. METHODS: A lipidomics study of HCC based on Ultra high performance liquid chromatography-electronic spray ionization-QTOF mass spectrometer (UPLC-ESI-QTOF MS) and Matrix assisted laser desorption ionization-fourier transform ion cyclotron resonance mass spectrometer (MALDI-FTICR MS) was performed...
November 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29169731/a-composition-of-medicinal-plants-with-an-enhanced-ability-to-suppress-microsomal-lipid-peroxidation-and-a-protective-activity-against-carbon-tetrachloride-induced-hepatotoxicity
#17
Araylim N Aralbaeva, Aigul T Mamataeva, Nazgul I Zhaparkulova, Raisa S Utegalieva, Marina Khanin, Michael Danilenko, Maira K Murzakhmetova
Treatment of liver injury induced by various toxicants represents a serious clinical challenge. Here, we utilized the ability of natural agents to inhibit microsomal lipid peroxidation (LPO) as the in-vitro screening paradigm for selecting efficacious tissue-protective combinations of cooperatively acting medicinal plants. Based on screening of 70 water-ethanol extracts obtained from different parts of 65 plants we prepared a highly active phytocomposition (PC-1) containing oregano (Origanum vulgare), wild thyme (Thymus serpyllum) and coltsfoot (Tussilago farfara) aerial parts, valerian (Valeriana officinalis) leaves and little-leaf linden (Tilia cordata) flowers...
November 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29158695/pnpla3-expression-and-its-impact-on-the-liver-current-perspectives
#18
REVIEW
Francesca Virginia Bruschi, Matteo Tardelli, Thierry Claudel, Michael Trauner
A single-nucleotide polymorphism occurring in the sequence of the human patatin-like phospholipase domain-containing 3 gene (PNPLA3), known as I148M variant, is one of the best characterized and deeply investigated variants in several clinical scenarios, because of its tight correlation with increased risk for developing hepatic steatosis and more aggressive part of the disease spectrum, such as nonalcoholic steatohepatitis, advanced fibrosis and cirrhosis. Further, the I148M variant is positively associated with alcoholic liver diseases, chronic hepatitis C-related cirrhosis and hepatocellular carcinoma...
2017: Hepatic Medicine: Evidence and Research
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
#19
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/29144590/metabolic-profiling-of-normal-hepatocyte-and-hepatocellular-carcinoma-cells-via-1-h-nuclear-magnetic-resonance-spectroscopy
#20
Yang Chen, Zhong Chen, Jiang-Hua Feng, Yun-Bin Chen, Nai-Shun Liao, Ying Su, Chang-Yan Zou
Hepatocellular carcinoma (HCC) causes death mainly by disseminated metastasis progression from the organ being confined. Different metastatic stages are closely related to cellular metabolic profiles. Normal hepatocyte and HepG2 cell line from low metastatic HCC were studied by NMR-based metabolomic techniques. Multivariate and univariate statistical analyses were utilized to identify characteristic metabolites from cells and cultured media. Elevated levels of acetate, creatine, isoleucine, leucine, and phenylalanine were observed in HepG2 cells, suggesting more active in gathering nutrient components along with altered amino acid metabolisms and enhanced lipid metabolism...
November 16, 2017: Cell Biology International
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