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https://www.readbyqxmd.com/read/29909577/population-pharmacokinetic-model-for-tumescent-lidocaine-in-women-undergoing-breast-cancer-surgery
#1
Camille Riff, Aurélie Bourgoin, Amelie Marsot, Laurent Allanioux, Marc Leone, Olivier Blin, Romain Guilhaumou
PURPOSE: Tumescent lidocaine anesthesia (TLA) is an opportunity to perform mastectomy for breast cancer without general anesthesia in elderly women. Few reports are available on the pharmacokinetics of lidocaine in a context of TLA during a unilateral mastectomy. The aim of this study was to describe lidocaine pharmacokinetics in elderly women undergoing breast cancer surgery after TLA and to explore the risk of the toxicity of this technique. METHODS: A prospective study was conducted to examine the pharmacokinetics of lidocaine in women undergoing TLA...
June 16, 2018: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29907770/na-hco-3-cotransporter-nbcn1-slc4a7-accelerates-erbb2-induced-breast-cancer-development-and-tumor-growth-in-mice
#2
Soojung Lee, Trine V Axelsen, Nicolai Jessen, Stine F Pedersen, Pernille Vahl, Ebbe Boedtkjer
Metabolic acid production challenges cellular pH homeostasis in solid cancer tissue, and mechanisms of net acid extrusion represent promising new targets for breast cancer therapy. Here, we used genetically engineered mice to investigate the contribution of the Na+ ,HCO3 - -cotransporter NBCn1 (Slc4a7) to intracellular acid-base regulation in ErbB2-induced breast cancer tissue and the consequences of NBCn1 knockout for breast tumor development and growth. We demonstrate an approximately 2-fold increase of NBCn1 protein abundance in ErbB2-induced breast cancer tissue compared to normal breast tissue despite a 4-fold decrease in the NBCn1 mRNA level...
June 15, 2018: Oncogene
https://www.readbyqxmd.com/read/29907337/hematologic-variables-associated-with-brain-failure-in-patients-with-small-cell-lung-cancer
#3
Ryoko Suzuki, Xiong Wei, Pamela K Allen, James W Welsh, Ritsuko Komaki, Steven H Lin
BACKGROUND AND PURPOSE: We sought factors associated with the development of brain metastases after treatment of small cell lung cancer (SCLC) in patients without brain involvement at diagnosis. METHODS: We analyzed 293 patients with SCLC without brain metastases who received chemotherapy, thoracic radiation therapy (TRT), or both in 2001-2015. Pretreatment hematologic markers (platelet count, neutrophil count, lymphocyte count, neutrophil-to-lymphocyte ratio, platelet-to-lymphocyte ratio, and lactate dehydrogenase) and other clinical characteristics were evaluated for correlation with brain metastases-free survival (BMFS)...
June 12, 2018: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/29907236/peritoneal-lavage-with-povidone-iodine-solution-in-colorectal-cancer-induced-rats
#4
Hua-Li Song, Dong-Mei Zhang, Heng Wen, Meng Wang, Na Zhao, Yu-Hua Gao, Ni Ding
BACKGROUND: Although peritoneal lavage with povidone-iodine (PVPI) is frequently performed after surgery on the gastrointestinal tract, the effects of PVPI on the intestinal epithelial barrier are unknown. The purpose of this study was to investigate the effects of abdominal irrigation with PVPI on the intestinal epithelial barrier in a colorectal cancer (CRC)-induced rat model. MATERIALS AND METHODS: The CRC model was induced in rats with azoxymethane and dextran sodium sulfate...
August 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29904943/fgf9-induced-ovarian-cancer-cell-invasion-involves-vegf-a-vegfr2-augmentation-by-virtue-of-ets1-upregulation-and-metabolic-reprogramming
#5
Rahul Bhattacharya, Susri Ray Chaudhuri, Sib S Roy
Ovarian cancer (OC) renders its lethality to enhanced metastasis and late detection. A plethora of growth factors including Vascular Endothelial Growth Factor (VEGF) and Fibroblast Growth Factor (FGF) stimulated signaling pathways regulate the invasive/metastatic behavior of ovarian tumors contributing to its aggressiveness. Autocrine VEGF-functioning by virtue of upregulated VEGFR2 contributes to the invasiveness of OC cells by modulating the MMPs. Studies have highlighted the interaction between FGF and VEGF signaling pathways during angiogenesis...
June 15, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29901206/protein-kinase-d1-regulates-hypoxic-metabolism-through-hif-1%C3%AE-and-glycolytic-enzymes-incancer-cells
#6
Jiao Chen, Bomiao Cui, Yaping Fan, Xiaoying Li, Qian Li, Yue Du, Yun Feng, Ping Zhang
Protein kinase D1 (PKD1), one of the protein kinase D (PKD) family members, plays a prominent role in multiple bio-behaviors of cancer cells. Low pH and hypoxia are unique characteristics of the tumor microenvironment. The aim of this study was to investigate the role and mechanism of PKD1 in regulating metabolism in the human tongue squamous cell carcinoma (TSCC) cell line SCC25 under a hypoxic condition, as well as growth and apoptosis. Here, we found that hypoxia not only induced the expression of HIF-1α, but also induced the expression and activation of PKD1...
June 7, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29901113/hras-as-a-potential-therapeutic-target-of-salirasib-ras-inhibitor-in-bladder-cancer
#7
Satoshi Sugita, Hideki Enokida, Hirofumi Yoshino, Kazutaka Miyamoto, Masaya Yonemori, Takashi Sakaguchi, Yoichi Osako, Masayuki Nakagawa
The active form of the small GTPase RAS binds to downstream effectors to promote cell growth and proliferation. RAS signal enhancement contributes to tumorigenesis, invasion, and metastasis in various different cancers. HRAS proto-oncogene GTPase (HRAS), one of the RAS isoforms, was the first human oncogene for which mutations were reported in T24 bladder cancer (BC) cells in 1982, and HRAS mutation or upregulation has been reported in several cancers. According to data from The Cancer Genome Atlas, HRAS expression was significantly upregulated in clinical BC samples compared to healthy samples (P=0...
June 11, 2018: International Journal of Oncology
https://www.readbyqxmd.com/read/29898734/knockdown-of-klf5-suppresses-hypoxia-induced-resistance-to-cisplatin-in-nsclc-cells-by-regulating-hif-1%C3%AE-dependent-glycolysis-through-inactivation-of-the-pi3k-akt-mtor-pathway
#8
Tianxiao Gong, Liuqing Cui, Haili Wang, Haoxun Wang, Na Han
BACKGROUND: Hypoxia-mediated chemoresistance has been regarded as an important obstacle in the development of cancer treatment. Knockdown of krüppel-like factor 5 (KLF5) was reported to inhibit hypoxia-induced cell survival and promote cell apoptosis in non-small cell lung cancer (NSCLC) cells via direct regulation of hypoxia inducible factor-1α (HIF-1α) expression. However, the roles of KLF5 in the development of hypoxia-induced cisplatin (DDP) resistance and its underlying mechanism in NSCLC cells remain to be further elucidated...
June 14, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29893335/antioxidant-and-anticancer-activities-of-extract-of-inula-helenium-l-in-human-u-87-mg-glioblastoma-cell-line
#9
Kubra Koc, Ozlem Ozdemir, Aysenur Ozdemir, Unsal Dogru, Hasan Turkez
Aims: The aim of this study is to explore the antioxidant and antiproliferative activities of aqueous extract from aerial parts of Inula helenium (L.) against human U-87 MG glioma cell line. Materials and Methods: The 3'-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide and lactate dehydrogenase assays were used to study antiproliferative and cytotoxic activities against U-87 MG cell after 48 h exposure. In addition, to assess the oxidative effects, total antioxidant capacity and total oxidant status levels were also measured...
April 2018: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/29891507/aberrant-fgfr-tyrosine-kinase-signaling-enhances-the-warburg-effect-by-reprogramming-ldh-isoform-expression-and-activity-in-prostate-cancer
#10
Junchen Liu, Guo Chen, Zezhen Liu, Shaoyou Liu, Zhiduan Cai, Pan You, Yuepeng Ke, Li Lai, Yun Huang, Hongchang Gao, Liangcai Zhao, Helene Pelicano, Peng Huang, Wallace L McKeehan, Chin-Lee Wu, Cong Wang, Weide Zhong, Fen Wang
The acquisition of ectopic fibroblast growth factor receptor 1 (FGFR1) expression is well documented in prostate cancer (PCa) progression. How it contributes to PCa progression is not fully understood, although it is known to confer a growth advantage and promote cell survival. Here we report that FGFR1 tyrosine kinase reprograms the energy metabolism of PCa cells by regulating expression of lactate dehydrogenase (LDH) isozymes. FGFR1 increased LDHA stability through tyrosine phosphorylation and reduced LDHB expression by promoting its promoter methylation, thereby shifting cell metabolism from oxidative phosphorylation to aerobic glycolysis...
June 11, 2018: Cancer Research
https://www.readbyqxmd.com/read/29890389/rational-design-of-mitochondria-targeted-pyruvate-dehydrogenase-kinase-1-inhibitors-with-improved-selectivity-and-antiproliferative-activity
#11
Biao Xu, Zhimei Yu, Sichuan Xiang, Yunshan Li, Shao-Lin Zhang, Yun He
Herein, triphenylphosphonium cation moieties were incorporated into a dichloroacetophenone derivative, leading to the discovery of novel mitochondria-targeted and tumor-specific pyruvate dehydrogenase kinase 1 (PDK1) inhibitors. Biological studies suggested that all these synthesized compounds had significant in vitro activities, in particular compound 1f, which inhibited PDK1 with an EC50 value of 0.12 μM, and reduced the proliferation of NCI-H1650 cell with an IC50 value of 0.21 μM, but showed marginal effect against non-cancerous BEAS-2B cell (IC50  = 3...
June 5, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29886985/understanding-the-effects-of-electromagnetic-field-emissions-from-marine-renewable-energy-devices-mreds-on-the-commercially-important-edible-crab-cancer-pagurus-l
#12
Kevin Scott, Petra Harsanyi, Alastair R Lyndon
The effects of simulated electromagnetic fields (EMF), emitted from sub-sea power cables, on the commercially important decapod, edible crab (Cancer pagurus), were assessed. Stress related parameters were measured (l-Lactate, d-Glucose, Haemocyanin and respiration rate) along with behavioural and response parameters (antennular flicking, activity level, attraction/avoidance, shelter preference and time spent resting/roaming) during 24-h periods. Exposure to EMF had no effect on Haemocyanin concentrations, respiration rate, activity level or antennular flicking rate...
June 2018: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/29886375/down-regulation-of-mir-214-inhibits-proliferation-and-glycolysis-in-non-small-cell-lung-cancer-cells-via-down-regulating-the-expression-of-hexokinase-2-and-pyruvate-kinase-isozyme-m2
#13
Kejian Zhang, Mingrui Zhang, Hui Jiang, Fenglin Liu, Hongwei Liu, Yang Li
Glycolysis is a metabolic pathway that is enhanced in cancer cells. miR-214 plays an important role in cancer development and can modulate glycolysis. However, whether miR-214 can regulate glycolysis in non-small-cell lung cancer (NSCLC) cells has not yet been investigated. The expression levels of miR-214 in 7 NSCLC cell lines were measured by qRT-PCR. MTT assay was performed to evaluate the cell proliferation. Glucose consumption and lactate production were measured to assess the level of glycolysis. The expression of hexokinase 2 (HK2) and pyruvate kinase isozyme M2 (PKM2) was measured by qRT-PCR and western blot analysis...
June 6, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29884705/mucosal-immunity-in-the-female-murine-mammary-gland
#14
Courtney B Betts, Nathan D Pennock, Breanna P Caruso, Brian Ruffell, Virginia F Borges, Pepper Schedin
The mammary gland is not classically considered a mucosal organ, although it exhibits some features common to mucosal tissues. Notably, the mammary epithelium is contiguous with the external environment, is exposed to bacteria during lactation, and displays antimicrobial features. Nonetheless, immunological hallmarks predictive of mucosal function have not been demonstrated in the mammary gland, including immune tolerance to foreign Ags under homeostasis. This inquiry is important, as mucosal immunity in the mammary gland may assure infant and women's health during lactation...
June 8, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29881727/colorectal-cancer-cells-increase-the-production-of-short-chain-fatty-acids-by-propionibacterium-freudenreichii-impacting-on-cancer-cells-survival
#15
Marta R Casanova, João Azevedo-Silva, Ligia R Rodrigues, Ana Preto
Propionibacterium freudenreichii is a commercially relevant bacterium with probiotic potential. This bacterium can exert protective effects particularly against colorectal cancer (CRC), via the production of short chain fatty acids (SCFA), namely acetate and propionate. In this work, we aimed to evaluate the performance and adaptation capacity of P. freudenreichii to a simulated digestive stress using different culture media, namely YEL, Basal medium, Mimicking the Content of the Human Colon medium (MCHC) and DMEM...
2018: Frontiers in Nutrition
https://www.readbyqxmd.com/read/29880505/hexokinase-2-is-targetable-for-hk1-negative-hk2-positive-tumors-from-a-wide-variety-of-tissues-of-origin
#16
Shili Xu, Arthur Catapang, Hanna M Doh, Nicholas A Bayley, Jason T Lee, Daniel Braas, Thomas G Graeber, Harvey R Herschman
Although absent in most adult tissues, hexokinase 2 (HK2) is expressed in a majority of tumors and contributes to increased glucose consumption and to in vivo tumor 18 F-FDG PET signaling. Methods: Both HK2 knockdown and knockout approaches were used to investigate the role of HK2 in cancer cell proliferation, in vivo xenograft tumor progression and 18 F-FDG tumor accumulation. BioProfiler analysis monitored cell culture glucose consumption and lactate production; 18 F-FDG PET/CT monitored in vivo tumor glucose accumulation...
June 7, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29875008/prognostic-value-of-transferrin-receptor-1-cd71-expression-in-acute-lymphoblastic-leukemia
#17
Adel A Hagag, Ibrahim M Badraia, Mohamed M Abdelmageed, Nahed M Hablas, Sahar Me Hazzaa, Nahla A Nosair
BACKGROUND: Acute lymphoblastic leukemia (ALL) is the commonest childhood cancer. Transferrin receptor 1 (CD71) is a trans-membrane glycoprotein which has important role in iron homeostasis by acting as a gatekeeper regulating iron uptake from transferrin and is an attractive target for anti-cancer agents, particularly those that aim to induce lethal iron deprivation in malignant hematopoietic cells. AIM OF THE WORK: To assess the prognostic value of Transferrin receptor -1 (CD71) in children with newly diagnosed ALL...
June 4, 2018: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/29871587/evaluation-of-rhodiola-crenulata-on-growth-and-metabolism-of-nb-1691-an-mycn-amplified-neuroblastoma-cell-line
#18
Kaitlyn E Wong, Maria C Mora, Nazneen Sultana, Kevin P Moriarty, Richard B Arenas, Nagendra Yadava, Sallie S Schneider, Michael V Tirabassi
Outcomes of children with high grade neuroblastoma remain poor despite multi-agent chemotherapy regimens. Rhodiola crenulata extracts display anti-neoplastic properties against several cancers including breast cancer, melanoma, and glioblastoma. In this study, we evaluated the anti-neoplastic potential of Rhodiola crenulata extracts on human neuroblastoma cells. Through this work, cell viability and proliferation were evaluated following treatments with ethanol (vehicle control) or Rhodiola crenulata extract in neuroblastoma, NB-1691 or SK-N-AS cells, in vitro...
June 2018: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29870085/cancer-in-the-crosshairs-targeting-cancer-metabolism-with-hyperpolarized-carbon-13-mri-technology
#19
Cornelius von Morze, Matthew E Merritt
Magnetic resonance (MR)-based hyperpolarized (HP) 13 C metabolic imaging is under active pursuit as a new clinical diagnostic method for cancer detection, grading, and monitoring of therapeutic response. Following the tremendous success of metabolic imaging by positron emission tomography, which already plays major roles in clinical oncology, the added value of HP 13 C MRI is emerging. Aberrant glycolysis and central carbon metabolism is a hallmark of many forms of cancer. The chemical transformations associated with these pathways produce metabolites ranging in general from three to six carbons, and are dependent on the redox state and energy charge of the tissue...
June 5, 2018: NMR in Biomedicine
https://www.readbyqxmd.com/read/29867918/reactive-oxygen-species-deficiency-due-to-ncf1-mutation-leads-to-development-of-adenocarcinoma-and-metabolomic-and-lipidomic-remodeling-in-a-new-mouse-model-of-dextran-sulfate-sodium-induced-colitis
#20
Lina Carvalho, Joana R M Gomes, Ludgero C Tavares, Ana R Xavier, Karel D Klika, Rikard Holmdahl, Rui A Carvalho, M Margarida Souto-Carneiro
Inflammatory bowel disease is characterized by chronic relapsing idiopathic inflammation of the gastrointestinal tract and persistent inflammation. Studies focusing on the immune-regulatory function of reactive oxygen species (ROS) are still largely missing. In this study, we analyzed an ROS-deficient mouse model leading to colon adenocarcinoma. Colitis was induced with dextran sulfate sodium (DSS) supplied via the drinking water in wild-type (WT) and Ncf1-mutant (Ncf1) B10.Q mice using two different protocols, one mimicking recovery after acute colitis and another simulating chronic colitis...
2018: Frontiers in Immunology
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