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Cancer metabolism

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https://www.readbyqxmd.com/read/28214961/obesity-and-kidney-disease-hidden-consequences-of-the-epidemic
#1
EDITORIAL
Csaba P Kovesdy, Susan L Furth, Carmine Zoccali
Obesity has become a worldwide epidemic, and its prevalence has been projected to grow by 40% in the next decade. This increasing prevalence has implications for the risk of diabetes, cardiovascular disease and also for Chronic Kidney Disease. A high body mass index is one of the strongest risk factors for new-onset Chronic Kidney Disease. In individuals affected by obesity, a compensatory hyperfiltration occurs to meet the heightened metabolic demands of the increased body weight. The increase in intraglomerular pressure can damage the kidneys and raise the risk of developing Chronic Kidney Disease in the long-term...
February 2017: Journal of Nephrology
https://www.readbyqxmd.com/read/28214891/up-regulated-atf4-expression-increases-cell-sensitivity-to-apoptosis-in-response-to-radiation
#2
Ying Zong, Shijie Feng, Jinwei Cheng, Chenlin Yu, Guocai Lu
BACKGROUND/AIMS: Activating transcription factor 4 (ATF4) is a member of the activating transcription factor family which regulates the expression of genes involved in amino acid metabolism, redox homeostasis and ER stress responses. ATF4 is also over-expressed in human solid tumors, although its effect on responsiveness to radiation is largely unexplored. METHODS: Real-time PCR was used to detect ATF4 mRNA levels in cells treated with different doses of 60Coγ radiation...
February 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214864/a-comparative-study-of-intravenous-injection-form-and-oral-jelly-form-of-alendronate-sodium-hydrate-for-bone-mineral-disorder-after-gastrectomy
#3
Chikara Kunisaki, Yusaku Tanaka, Takashi Kosaka, Hiroshi Miyamoto, Sho Sato, Hideaki Suematsu, Norio Yukawa, Kei Sato, Yusuke Izumisawa, Hirotoshi Akiyama, Masataka Taguri, Takeharu Yamanaka, Itaru Endo
BACKGROUND/AIMS: Osteoporosis is found to have high prevalence after gastrectomy and therefore, it is important to prevent this condition by means of effective medication, such as alendronate sodium hydrate. METHODS: A total number of 48 gastric cancer patients diagnosed with osteoporosis after R0 gastrectomy was registered in this study between December 2013 and August 2014. Twenty-three patients received intravenous (i.v.) alendronate sodium hydrate and 25 patients received the drug in an oral jelly form...
February 18, 2017: Digestion
https://www.readbyqxmd.com/read/28214853/chronic-consumption-of-artificial-sweetener-in-packets-or-tablets-and-type-2-diabetes-risk-evidence-from-the-e3n-european-prospective-investigation-into-cancer-and-nutrition-study
#4
Guy Fagherazzi, Gaëlle Gusto, Aurélie Affret, Francesca Romana Mancini, Courtney Dow, Beverley Balkau, Françoise Clavel-Chapelon, Fabrice Bonnet, Marie-Christine Boutron-Ruault
BACKGROUND: The influence of artificial sweeteners on metabolic diseases is controversial. Artificially sweetened beverages have been associated with an increased risk of type 2 diabetes (T2D) but biases and reverse causation have been suspected to have influenced the observed association. In addition, it has been suggested that investigation into the relationship between the frequency and duration of the consumption of packet or tablet artificial sweeteners and T2D risk is necessary...
February 18, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28214830/hyper-elongation-in-colorectal-cancer-tissue-cerotic-acid-is-a-potential-novel-serum-metabolic-marker-of-colorectal-malignancies
#5
Adriana Mika, Jaroslaw Kobiela, Aleksandra Czumaj, Michał Chmielewski, Piotr Stepnowski, Tomasz Sledzinski
BACKGROUNDS/AIMS: Colorectal cancer (CRC) cells show some alterations of lipid metabolism. Elongation of fatty acids (FA) has not been studied in CRC tissues thus far. The aim of this study was to verify if CRC specimens and normal colon mucosa differ in terms of their levels of very long-chain FAs, a product of FA elongation. Moreover, the expression of elongase genes has been studied in normal tissue and CRC. Finally, we searched for some specific products of FA elongation in serum of CRC patients...
February 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214471/che-1-sustains-hypoxic-response-of-colorectal-cancer-cells-by-affecting-hif-1%C3%AE-stabilization
#6
Tiziana Bruno, Mariacristina Valerio, Luca Casadei, Francesca De Nicola, Frauke Goeman, Matteo Pallocca, Valeria Catena, Simona Iezzi, Cristina Sorino, Agata Desantis, Cesare Manetti, Giovanni Blandino, Aristide Floridi, Maurizio Fanciulli
BACKGROUND: Solid tumours are less oxygenated than normal tissues. Consequently, cancer cells acquire to be adapted to a hypoxic environment. The poor oxygenation of solid tumours is also a major indicator of an adverse cancer prognosis and leads to resistance to conventional anticancer treatments. We previously showed the involvement of Che-1/AATF (Che-1) in cancer cell survival under stress conditions. Herein we hypothesized that Che-1 plays a role in the response of cancer cells to hypoxia...
February 18, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28214218/implication-of-downregulation-and-prospective-pathway-signaling-of-microrna-375-in-lung-squamous-cell-carcinoma
#7
Wen-Jie Chen, Ting-Qing Gan, Hui Qin, Su-Ning Huang, Li-Hua Yang, Ye-Ying Fang, Zu-Yun Li, Lin-Jiang Pan, Gang Chen
BACKGROUND: Lung cancer is one of the most typical cancers in the world. Altered expression profiles of microRNA-375(miR-375) are linked to many diseases including lung cancer. However, the relationship between miR-375 and lung squamous cell carcinoma (LUSC) is controversial. METHODS: We first evaluated the 23 LUSCs and the paired normal lung tissues by qRT-PCR. Then we analyzed the LUSC samples with miR-375 expression based on The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO)...
January 22, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28213644/circulating-micrornas-and-diabetes-mellitus-a-novel-tool-for-disease-prediction-diagnosis-and-staging
#8
REVIEW
G Sebastiani, L Nigi, G E Grieco, F Mancarella, G Ventriglia, F Dotta
Diabetes is a complex, multifactorial group of metabolic diseases characterized by chronic hyperglycaemia due to pancreatic beta-cell dysfunction and/or loss. It is characterized by an asymptomatic and highly variable prodromic phase, which renders diabetes mellitus difficult to be predicted with sufficient accuracy. Despite several efforts in the identification and standardization of newly trustable. Biomarkers able to predict and follow-up diabetes and to specifically subtype its different forms, few of them have proven of clinical utility...
February 17, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28213398/foxo-integration-of-insulin-signaling-with-glucose-and-lipid-metabolism
#9
Sojin Lee, Henry H Dong
The forkhead box O family consists of FoxO1, FoxO3, FoxO4 and FoxO6 proteins in mammals. Expressed ubiquitously in the body, the four FoxO isoforms share in common the amino DNA binding domain, known as "forkhead box" domain. They mediate the inhibitory action of insulin or insulin-like growth factor on key functions involved in cell metabolism, growth, differentiation, oxidative stress, senescence, autophagy and aging. Genetic mutations in FoxO genes or abnormal expression of FoxO proteins are associated with metabolic disease, cancer or altered lifespan in humans and animals...
February 17, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28213331/mitochondrial-metabolism-and-energy-sensing-in-tumor-progression
#10
REVIEW
Luisa Iommarini, Anna Ghelli, Giuseppe Gasparre, Anna Maria Porcelli
Energy homeostasis is pivotal for cell fate since metabolic regulation, cell proliferation and death are strongly dependent on the balance between catabolic and anabolic pathways. In particular, metabolic and energetic changes have been observed in cancer cells even before the discovery of oncogenes and tumor suppressors, but has been neglected for a long time. Instead, during the past 20years a renaissance of the study of tumor metabolism has led to a revised and more accurate sight of the metabolic landscape of cancer cells...
February 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28213330/drug-discovery-strategies-in-the-field-of-tumor-energy-metabolism-limitations-by-metabolic-flexibility-and-metabolic-resistance-to-chemotherapy
#11
REVIEW
N D Amoedo, E Obre, R Rossignol
The search for new drugs capable of blocking the metabolic vulnerabilities of human tumors has now entered the clinical evaluation stage, but several projects already failed in phase I or phase II. In particular, very promising in vitro studies could not be translated in vivo at preclinical stage and beyond. This was the case for most glycolysis inhibitors that demonstrated systemic toxicity. A more recent example is the inhibition of glutamine catabolism in lung adenocarcinoma that failed in vivo despite a strong addiction of several cancer cell lines to glutamine in vitro...
February 14, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28213207/epimetabolites-discovering-metabolism-beyond-building-and-burning
#12
REVIEW
Megan R Showalter, Tomas Cajka, Oliver Fiehn
Enzymatic transformations of primary, canonical metabolites generate active biomolecules that regulate important cellular and physiological processes. Roles include regulation of histone demethylation in epigenetics, inflammation in tissue injury, insulin sensitivity, cancer cell invasion, stem cell pluripotency status, inhibition of nitric oxide signaling and others. Such modified compounds, defined as epimetabolites, have functions distinct from classic hormones as well as removed from generic anabolism and catabolism...
February 14, 2017: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/28213089/monoglyceride-lipase-as-a-drug-target-at-the-crossroads-of-arachidonic-acid-metabolism-and-endocannabinoid-signaling
#13
REVIEW
Gernot F Grabner, Robert Zimmermann, Rudolf Schicho, Ulrike Taschler
Monoglyerides (MGs) are short-lived, intermediary lipids deriving from the degradation of phospho- and neutral lipids, and monoglyceride lipase (MGL), also designated as monoacylglycerol lipase (MAGL), is the major enzyme catalyzing the hydrolysis of MGs into glycerol and fatty acids. This distinct function enables MGL to regulate a number of physiological and pathophysiological processes since both MGs and fatty acids can act as signaling lipids or precursors thereof. The most prominent MG species acting as signaling lipid is 2-arachidonoylglycerol (2-AG) which is the most abundant endogenous agonist of cannabinoid receptors in the body...
February 14, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28212997/differential-expression-and-prognostic-significance-of-glut1-according-to-histologic-type-of-non-small-cell-lung-cancer-and-its-association-with-volume-dependent-parameters
#14
Young Wha Koh, Su Jin Lee, Seong Yong Park
BACKGROUND: We evaluated glucose transporter type 1 (GLUT1) and carbonic anhydrase IX (CAIX) expression, together with volume-based(18)F-fluorodeoxyglucose positron emission tomography (FDG-PET) parameters, in non-small cell lung cancer (NSCLC) patients, and examined the prognostic significance of those parameters according to its histologic subtype. METHOD: A total of 269 patients, who underwent surgical resection for NSCLC, were reviewed retrospectively. Metabolic tumor volume (MTV) and total lesion glycolysis (TLG) values were measured by preoperative (18)F-fluorodeoxyglucose positron emission tomography computed tomography...
February 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28212757/a-prob-e-able-route-to-lysine-acylation
#15
Gregory R Wagner, Matthew D Hirschey
Non-enzymatic modification of proteins by acyl-CoA species involved in intermediary metabolism is a possible explanation for widespread protein acylation. In this issue, Kulkarni et al. (2017) develop a set of chemoproteomic probes to interrogate the role of malonyl-CoA in mediating protein malonylation and find malonylation influences glycolysis in cancer cells.
February 16, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28212728/metabolic-pathways-regulated-by-p63
#16
REVIEW
Eleonora Candi, Artem Smirnov, Emanuele Panatta, Anna Maria Lena, Flavia Novelli, Mara Mancini, Giuditta Viticchiè, Maria Cristina Piro, Nicola Di Daniele, Margherita Annicchiarico-Petruzzelli, Gerry Melino
The transcription factor p63 belongs to the p53-family and is a master regulator of proliferative potential, lineage specification, and differentiation in epithelia during development and tissue homeostasis. In cancer, p63 contribution is isoform-specific, with both oncogenic and tumour suppressive roles attributed, for ΔNp63 and TAp63, respectively. Recently, p53 and TAp73, in line with other tumour suppressor genes, have emerged as important regulators of energy metabolism and metabolic reprogramming in cancer...
January 15, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28212627/genome-wide-identification-of-direct-hbx-genomic-targets
#17
Francesca Guerrieri, Laura Belloni, Daniel D'Andrea, Natalia Pediconi, Loredana Le Pera, Barbara Testoni, Cecilia Scisciani, Oceane Floriot, Fabien Zoulim, Anna Tramontano, Massimo Levrero
BACKGROUND: The Hepatitis B Virus (HBV) HBx regulatory protein is required for HBV replication and involved in HBV-related carcinogenesis. HBx interacts with chromatin modifying enzymes and transcription factors to modulate histone post-translational modifications and to regulate viral cccDNA transcription and cellular gene expression. Aiming to identify genes and non-coding RNAs (ncRNAs) directly targeted by HBx, we performed a chromatin immunoprecipitation sequencing (ChIP-Seq) to analyse HBV recruitment on host cell chromatin in cells replicating HBV...
February 17, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28212619/brain-and-liver-pathology-amyloid-deposition-and-interferon-responses-among-older-hiv-positive-patients-in-the-late-haart-era
#18
Isaac H Solomon, Umberto De Girolami, Sukrutha Chettimada, Vikas Misra, Elyse J Singer, Dana Gabuzda
BACKGROUND: HIV+ patients on highly active antiretroviral therapy (HAART) with suppressed viral loads have a low incidence of HIV-associated dementia, but increased prevalence of milder forms of HIV-associated neurocognitive disorders (HAND). These milder forms of HAND are often associated with minimal histological abnormalities, and their pathophysiology is unclear. Comorbidities, altered amyloid metabolism, accelerated brain aging, and activated interferon responses are suspected to play a role in HAND pathogenesis in HAART-treated persons...
February 17, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28212347/molecularly-imprinted-sol-gel-based-qcm-sensor-arrays-for-the-detection-and-recognition-of-volatile-aldehydes
#19
Chuanjun Liu, Bartosz Wyszynski, Rui Yatabe, Kenshi Hayashi, Kiyoshi Toko
The detection and recognition of metabolically derived aldehydes, which have been identified as important products of oxidative stress and biomarkers of cancers; are considered as an effective approach for early cancer detection as well as health status monitoring. Quartz crystal microbalance (QCM) sensor arrays based on molecularly imprinted sol-gel (MISG) materials were developed in this work for highly sensitive detection and highly selective recognition of typical aldehyde vapors including hexanal (HAL); nonanal (NAL) and bezaldehyde (BAL)...
February 16, 2017: Sensors
https://www.readbyqxmd.com/read/28212276/preventive-effects-of-pentoxifylline-on-the-development-of-colonic-premalignant-lesions-in-obese-and-diabetic-mice
#20
Kazufumi Fukuta, Yohei Shirakami, Akinori Maruta, Koki Obara, Soichi Iritani, Nobuhiko Nakamura, Takahiro Kochi, Masaya Kubota, Hiroyasu Sakai, Takuji Tanaka, Masahito Shimizu
Obesity and its related metabolic abnormalities, including enhanced oxidative stress and chronic inflammation, are closely related to colorectal tumorigenesis. Pentoxifylline (PTX), a methylxanthine derivative, has been reported to suppress the production of tumor necrosis factor (TNF)-α and possess anti-inflammatory properties. The present study investigated the effects of PTX on the development of carcinogen-induced colorectal premalignant lesions in obese and diabetic mice. Male C57BL/KsJ-db/db mice, which are severely obese and diabetic, were administered weekly subcutaneous injections of the colonic carcinogen azoxymethane (15 mg/kg body weight) for four weeks and then received drinking water containing 125 or 500 ppm PTX for eight weeks...
February 15, 2017: International Journal of Molecular Sciences
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