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https://www.readbyqxmd.com/read/29156864/evaluation-of-lipid-profiles-in-patients-treated-with-capecitabine
#1
Nursel Sürmelioğlu, Semra Paydaş, Yusuf Karataş, Gülşah Seydaoğlu
Background/aim: Capecitabine is a prodrug of 5-fluorouracil and has shown significant antitumor activity. The main adverse effects are hand-foot syndrome, diarrhea, and dermatitis. In recent years, hypertriglyceridemia has been reported in patients treated with capecitabine. Dyslipidemia is a rare but important side effect of capecitabine. The aim of this study is to examine the changes in lipid levels during capecitabine treatment and to raise awareness of pharmacovigilance. Materials and methods: In this retrospective study, it was aimed to analyze lipid metabolism after capecitabine treatment and is intended to contribute to the formation of a pharmacoepidemiological database...
August 23, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29156779/selecting-lncrnas-in-gastric-cancer-cells-for-directed-therapy-with-bioactive-peptides-and-chemotherapy-drugs
#2
Wenyan Han, Rui Xiao, Chuanling Zhang, Qimuge Suyila, Xian Li, Xiulan Su
Selecting lncRNAs for directed therapy with bioactive peptides and chemotherapy drugs may be an effective approach to treating gastric cancer (GC). We show genome-scale identification and characterization of differentially expressed lncRNAs in GC cells treated with a novel anti-cancer bioactive peptide (ACBP) and the chemotherapy drug oxaliplatin (ASLB). A total of 17,897 lncRNAs were identified through pairwise comparison, including 2,074 novel lncRNAs. Of those, 1,386 lncRNAs were differentially expressed (over 1...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156749/high-uric-acid-ua-downregulates-bone-alkaline-phosphatase-balp-expression-through-inhibition-of-its-promoter-activity
#3
Zhi-Qi Wu, Xiao-Ting Chen, Yan-Yan Xu, Ming-Jie Tian, Hai-Yan Chen, Guo-Ping Zhou, Hua-Guo Xu
Bone metastases often occur in prostate cancers, lung cancers and breast cancers. Bone alkaline phosphatase (BALP) is one of the most commonly used serological markers for clinical evaluation of bone metabolism. Here, we reported that high concentrations of uric acid (UA) caused decrease of BALP levels and revealed that the effect of high concentrations of UA on the BALP expression was through inhibition of its promoter activity. Our results suggested physicians to think about serum UA status of patients with advanced cancer to avoid misdiagnosis when BALP was used to diagnose or assess the extent of bone metastases...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156745/predictive-value-of-preoperative-inflammatory-response-biomarkers-for-metabolic-syndrome-and-post-pcnl-systemic-inflammatory-response-syndrome-in-patients-with-nephrolithiasis
#4
Kun Tang, Haoran Liu, Kehua Jiang, Tao Ye, Libin Yan, Peijun Liu, Ding Xia, Zhiqiang Chen, Hua Xu, Zhangqun Ye
Neutrophil to lymphocyte ratio (NLR), derived neutrophil to lymphocyte ratio (dNLR), platelet to lymphocyte ratio (PLR) and lymphocyte to monocyte ratio (LMR) were promising biomarkers used to predict diagnosis and prognosis in various inflammatory responses diseases and cancers. However, there have been no reports regarding these biomarkers in kidney stone patients. This study aimed to evaluate the predictive value of inflammatory biomarkers for metabolic syndrome (MetS) and post-PCNL SIRS in nephrolithiasis patients...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156737/combination-treatment-with-recombinant-methioninase-enables-temozolomide-to-arrest-a-braf-v600e-melanoma-in-a-patient-derived-orthotopic-xenograft-pdox-mouse-model
#5
Kei Kawaguchi, Kentaro Igarashi, Shukuan Li, Qinghong Han, Yuying Tan, Tasuku Kiyuna, Kentaro Miyake, Takashi Murakami, Bartosz Chmielowski, Scott D Nelson, Tara A Russell, Sarah M Dry, Yunfeng Li, Michiaki Unno, Fritz C Eilber, Robert M Hoffman
An excessive requirement for methionine termed methionine dependence, appears to be a general metabolic defect in cancer. We have previously shown that cancer-cell growth can be selectively arrested by methionine deprivation such as with recombinant methioninase (rMETase). The present study used a previously-established patient-derived orthotopic xenograft (PDOX) nude mouse model of BRAF V600E-mutant melanoma to determine the efficacy of rMETase in combination with a first-line melanoma drug, temozolomide (TEM)...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156720/novel-strategies-of-raman-imaging-for-brain-tumor-research
#6
Imiela Anna, Polis Bartosz, Polis Lech, Abramczyk Halina
Raman diagnostics and imaging have been shown to be an effective tool for the analysis and discrimination of human brain tumors from normal structures. Raman spectroscopic methods have potential to be applied in clinical practice as they allow for identification of tumor margins during surgery. In this study, we investigate medulloblastoma (grade IV WHO) (n= 5), low-grade astrocytoma (grades I-II WHO) (n =4), ependymoma (n=3) and metastatic brain tumors (n= 1) and the tissue from the negative margins used as normal controls...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156703/preclinical-efficacy-of-the-novel-competitive-nampt-inhibitor-stf-118804-in-pancreatic-cancer
#7
Jair Machado Espindola-Netto, Claudia C S Chini, Mariana Tarragó, Enfeng Wang, Shamit Dutta, Krishnendu Pal, Debabrata Mukhopadhyay, Mauro Sola-Penna, Eduardo N Chini
NAD salvage is one of the pathways used to generate NAD in mammals. Nicotinamide phosphoribosyltransferase (NAMPT), the rate-limiting enzyme in this pathway, uses nicotinamide (NAM) to generate nicotinamide mononucleotide (NMN). NMN is one of the main precursors of NAD synthesis in cells. Our previous study showed the importance of NAMPT in maintaining NAD levels in pancreatic ductal adenocarcinoma cells (PDAC), and that the NAMPT inhibitor FK866 decreased pancreatic cancer growth. We now tested the effect of STF-118804, a new highly specific NAMPT inhibitor, in models of pancreatic ductal adenocarcinoma...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156692/increased-transcriptional-and-metabolic-capacity-for-lipid-metabolism-in-the-peripheral-zone-of-the-prostate-may-underpin-its-increased-susceptibility-to-cancer
#8
Omar Al Kadhi, Maria H Traka, Antonietta Melchini, Perla Troncoso-Rey, Wiktor Jurkowski, Marianne Defernez, Purnima Pachori, Robert D Mills, Richard Y Ball, Richard F Mithen
The human prostate gland comprises three distinct anatomical glandular zones, namely the peripheral, central and transitional zones. Although prostate cancer can arise throughout the prostate, it is more frequent in the peripheral zone. In contrast, hyperplasia occurs most frequently in the transitional zone. In this paper, we test the hypothesis that peripheral and transitional zones have distinct metabolic adaptations that may underlie their different inherent predispositions to cancer and hyperplasia. In order to do this, we undertook RNA sequencing and high-throughput metabolic analyses of non-cancerous tissue from the peripheral and transitional zones of patients undergoing prostatectomy...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156676/uncoupling-torc2-from-agc-kinases-inhibits-tumour-growth
#9
Angus J M Cameron, Selvaraju Veeriah, Jacqueline J T Marshall, Elizabeth R Murray, Banafshé Larijani, Peter J Parker
Mammalian target of rapamycin (mTOR) is a central regulator of growth and metabolism. mTOR resides in two distinct multi-protein complexes - mTORC1 and mTORC2 - with distinct upstream regulators and downstream targets. While it is possible to specifically inhibit mTORC1 with rapamycin, or inhibit both mTOR complexes together with ATP pocket directed mTOR kinase inhibitors, it is not possible to assess the specific roles for mTORC2 pharmacologically. To overcome this, we have developed a novel, inducible, dominant negative system for disrupting substrate recruitment to mTORC2...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156675/glioblastoma-and-glioblastoma-stem-cells-are-dependent-on-functional-mth1
#10
Linda Pudelko, Pegah Rouhi, Kumar Sanjiv, Helge Gad, Christina Kalderén, Andreas Höglund, Massimo Squatrito, Alberto J Schuhmacher, Steven Edwards, Daniel Hägerstrand, Ulrika Warpman Berglund, Thomas Helleday, Lars Bräutigam
Glioblastoma multiforme (GBM) is an aggressive form of brain cancer with poor prognosis. Cancer cells are characterized by a specific redox environment that adjusts metabolism to its specific needs and allows the tumor to grow and metastasize. As a consequence, cancer cells and especially GBM cells suffer from elevated oxidative pressure which requires antioxidant-defense and other sanitation enzymes to be upregulated. MTH1, which degrades oxidized nucleotides, is one of these defense enzymes and represents a promising cancer target...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156528/actein-ameliorates-hepatic-steatosis-and-fibrosis-in-high-fat-diet-induced-nafld-by-regulation-of-insulin-and-leptin-resistant
#11
Hong-Jun Chen, Jin Liu
Insulin and leptin resistance are highly involved in metabolic syndrome and non-alcoholic fatty liver disease (NAFLD). Presently, no approved treatment is available. Actein is isolated from the rthizomes of Cimicifuga foetida, a triterpene glycoside, exhibiting important biological properties, such as anti-inflammatory, anti-cancer, and anti-oxidant activity. However, its effects on metabolic syndrome are poorly understood. The aims of the study were mainly to investigate the molecular mechanisms regulating insulin and leptin resistance, and lipogenic action of actein in high fat diet-fed mice...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156518/linc00152-mir-139-5p-regulates-gastric-cancer-cell-aerobic-glycolysis-by-targeting-prkaa1
#12
Keke Sun, Pingping Hu, Feng Xu
Gastric cancer is one of the most common cancers in the world and glycolysis is a major feature of gastric cancer. MicroRNAs (miRNAs) involve in gastric cancer cell proliferation, glycolysis and other cellular processes. MiR-139-5p is reported as a tumor suppressor in cancers, however, the role of miR-139-5p including glycolytic metabolism is unclear in gastric cancer. So, the purpose of the present study is to elucidate the underlying mechanism in gastric cancer metabolism mediated by miR-139-5p. Our results revealed that miR-139-5p inhibited glycolysis by regulating AMP-activated, alpha 1 catalytic subunit (PRKAA1) expression in gastric cancer cells...
November 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29155562/quantification-of-nanomaterial-nanomedicine-trafficking-in-vivo
#13
Liming Wang, Liang Yan, Jing Liu, Chunying Chen, Yuliang Zhao
Absorption, distribution, metabolism and excretion (ADME) of nanomaterials (NMs) or nanomedicines (NMs), are fundamental biological processes that dominate their nanomedical functions or nanotoxicities. Mostly, NMs exist in biological systems as a form of nanoparticles (NPs). However, to determine the composition, spatial distribution, and states of existence of NMs/NPs in vivo, upon entry into the body, as well as to monitor the dynamic changes of these information over time remain a challenge for the current analytical methodology due to their limited efficiently in characterizing interactions between these complex(nano)-complex(bio) systems...
November 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29155359/4-methylthio-3-butenyl-isothiocyanate-mediates-nuclear-factor-erythroid-derived-2-like-2-activation-by-regulating-reactive-oxygen-species-production-in-human-esophageal-epithelial-cells
#14
Tadashi Hirata, Young-Man Cho, Isamu Suzuki, Takeshi Toyoda, Jun-Ichi Akagi, Yasushi Nakamura, Satoshi Numazawa, Kumiko Ogawa
4-Methylthio-3-butenyl isothiocyanate (MTBITC) extracted from daikon (Raphanus sativus), which shows antimutagenicity, may have applications as an effective chemopreventive agent in several cancers; however, few reports have described the associated mechanisms. We investigated whether MTBITC induced cytoprotective genes, including phase II enzymes, in Het-1A human esophageal epithelial cells. HMOX1, NQO1, and GCLC mRNA levels and nuclear factor (erythroid-derived 2)-like 2 (Nrf2) protein levels were increased in Het-1A cells exposed to 10 μM MTBITC...
November 16, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29155239/mechanisms-controlling-the-anti-neoplastic-functions-of-foxo-proteins
#15
REVIEW
Tianyun Hou, Zhiming Li, Ying Zhao, Wei-Guo Zhu
The Forkhead box O (FoxO) proteins comprise a family of evolutionarily conserved transcription factors that predominantly function as tumor suppressors. These proteins assume diverse roles in the cellular anti-neoplastic response, including regulation of apoptosis and autophagy, cancer metabolism, cell-cycle arrest, oxidative stress and the DNA damage response. More recently, FoxO proteins have been implicated in cancer immunity and cancer stem-cell (CSC) homeostasis. Interestingly, in some sporadic sub-populations, FoxO protein function may also be manipulated by factors such as β-catenin whereby they instead can facilitate cancer progression via maintenance of CSC properties or promoting drug resistance or metastasis and invasion...
November 16, 2017: Seminars in Cancer Biology
https://www.readbyqxmd.com/read/29155210/transition-from-androgenic-to-neurosteroidal-action-of-5%C3%AE-androstane-3%C3%AE-17%C3%AE-diol-through-the-type-a-%C3%AE-aminobutyric-acid-receptor-in-prostate-cancer-progression
#16
Ding Xia, Doan V Lai, Weijuan Wu, Zachary D Webb, Qing Yang, Lichao Zhao, Zhongxin Yu, Jessica E Thorpe, Bryan C Disch, Michael A Ihnat, Muralidharan Jayaraman, Danny N Dhanasekaran, Kelly L Stratton, Michael S Cookson, Kar-Ming Fung, Hsueh-Kung Lin
Androgen ablation is the standard of care prescribed to patients with advanced or metastatic prostate cancer (PCa) to slow down disease progression. Unfortunately, a majority of PCa patients under androgen ablation progress to castration-resistant prostate cancer (CRPC). Several mechanisms including alternative intra-prostatic androgen production and androgen-independent androgen receptor (AR) activation have been proposed for CRPC progression. Aldo-keto reductase family 1 member C3 (AKR1C3), a multi-functional steroid metabolizing enzyme, is specifically expressed in the cytoplasm of PCa cells; and positive immunoreactivity of the type A γ-aminobutyric acid receptor (GABAAR), an ionotropic receptor and ligand-gated ion channel, is detected on the membrane of PCa cells...
November 15, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29155017/p-glycoprotein-mdr1-abcb1-and-breast-cancer-resistance-protein-bcrp-abcg2-affect-brain-accumulation-and-intestinal-disposition-of-encorafenib-in-mice
#17
Jing Wang, Changpei Gan, Rolf W Sparidans, Els Wagenaar, Stéphanie van Hoppe, Jos H Beijnen, Alfred H Schinkel
Encorafenib (LGX818) is a promising BRAF(V600E) inhibitor that has efficacy against metastatic melanoma. To better understand its pharmacokinetics, we studied its interactions with the multidrug efflux transporters ABCB1 and ABCG2 and the multidrug metabolizing enzyme CYP3A. In polarized MDCK-II cells, encorafenib was efficiently transported by canine and human ABCB1 and ABCG2 and by mouse Abcg2. Upon oral administration to wild-type, Abcb1a/1b(-/-), Abcg2(-/-), and Abcb1a/1b;Abcg2(-/-) mice, encorafenib was absorbed very quickly and to very high plasma levels, but without clear changes in oral availability between the strains...
November 14, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29154799/integrative-omics-data-analyses-of-repeated-dose-toxicity-of-valproic-acid-in-vitro-reveal-new-mechanisms-of-steatosis-induction
#18
Simone G J van Breda, Sandra M H Claessen, Marcel van Herwijnen, Daniël H J Theunissen, Danyel G J Jennen, Theo M C M de Kok, Jos C S Kleinjans
Valproic acid (VPA) is a very potent anti-cancer and neuro-protective drug probably by its HCAC inhibiting properties, which may cause steatosis in the liver. The present study investigates the effect of repetitive VPA treatment of primary human hepatocytes (PHH) on whole genome gene expression-, DNA methylation-, and miRNA changes, using microarrays and integrated data analyses. PHH were exposed to a non-cytotoxic dose of VPA for 5days daily which induced lipid accumulation. Part of the PHH was left untreated for 3days for studying the persistence of 'omics' changes...
November 14, 2017: Toxicology
https://www.readbyqxmd.com/read/29154757/macrophage-polarization-and-meta-inflammation
#19
REVIEW
Chuan Li, Maria M Xu, Kepeng Wang, Adam J Adler, Anthony T Vella, Beiyan Zhou
Chronic overnutrition and obesity induces low-grade inflammation throughout the body. Termed "meta-inflammation," this chronic state of inflammation is mediated by macrophages located within the colon, liver, muscle, and adipose tissue. A sentinel orchestrator of immune activity and homeostasis, macrophages adopt variable states of activation as a function of time and environmental cues. Meta-inflammation phenotypically skews these polarization states and has been linked to numerous metabolic disorders. The past decade has revealed several key regulators of macrophage polarization, including the signal transducer and activator of transcription family, the peroxisome proliferator-activated receptor gamma, the CCAAT-enhancer-binding proteins (C/EBP) family, and the interferon regulatory factors...
November 3, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/29154192/resveratrol-attenuates-testicular-apoptosis-in-type-1-diabetic-mice-role-of-akt-mediated-nrf2-activation-and-p62-dependent-keap1-degradation
#20
Yuguang Zhao, Wenjing Song, Zhenyu Wang, Zongqiang Wang, Xing Jin, Jiancheng Xu, Ling Bai, Yuying Li, Jiuwei Cui, Lu Cai
Infertility is a common complication in diabetic men, mainly due to the loss of germ cells by apoptotic cell death. However, effective and safe approaches to prevent diabetic induction of testicular apoptosis for diabetic patients have not been available. Resveratrol (RSV), a group of compounds called polyphenols from plants, has been indicated its promising used clinically for cancers and cardiovascular diseases. Therefore, the present study aimed determining whether RSV attenuates type 1 diabetes (T1D)-induced testicular apoptotic cell death in a mouse model...
November 8, 2017: Redox Biology
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