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https://www.readbyqxmd.com/read/28445985/interleukin-22-promotes-aerobic-glycolysis-associated-with-tumor-progression-via-targeting-hexokinase-2-in-human-colon-cancer-cells
#1
Yulin Liu, Fan Xiang, Yongming Huang, Liang Shi, Chaojie Hu, Yiming Yang, Di Wang, Nan He, Kaixiong Tao, Ke Wu, Guobin Wang
Interleukin-22 has been explored extensively in human cancer, but its functions and underlying mechanisms are incompletely understood. Here, we show that aberrant interleukin-22 expression facilitates aerobic glycolysis in colon cancer cells. Elevated interleukin-22 mRNA expression was observed and positively correlated with hexokinase-2 in colon cancer tissues. In vitro, interleukin-22 enhanced glucose consumption and lactate production via targeting hexokinase-2 in colon cancer cells. Moreover, the transcriptional factor c-Myc and signal transducer and activator of transcription 3 were involved in interleukin-22-induced up-regulation of hexokinase-2...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445971/stat3-regulates-glycolysis-via-targeting-hexokinase-2-in-hepatocellular-carcinoma-cells
#2
Man Li, Rui Jin, Weihua Wang, Tieying Zhang, Jiao Sang, Na Li, Qunying Han, Wenxuan Zhao, Chunyan Li, Zhengwen Liu
Signal transducer and activator of transcription 3 (STAT3) and hexokinase 2 (HK2) are involved in hepatocellular carcinoma (HCC). Deregulation of cellular energetics involving an increase in glycolysis is a characteristic of HCC. This study examined whether STAT3 regulates HCC glycolysis through the HK2 pathway in HCC cells. Human HCC cell lines HepG2 and Hep3B cells were transfected with pcDNA3.1(+)-EGFP-STAT3, STAT3 siRNA and HK2 siRNA, respectively, or treated with rapamycin, an inhibitor of mammalian target of rapamycin (mTOR), and the effects on STAT3 and HK2 expression and cell glycolysis were determined...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445931/high-glucose-induces-apoptosis-via-upregulation-of-bim-expression-in-proximal-tubule-epithelial-cells
#3
Xiao-Qian Zhang, Jian-Jun Dong, Tian Cai, Xue Shen, Xiao-Jun Zhou, Lin Liao
Diabetic nephropathy is the primary cause of end-stage renal disease. Apoptosis of tubule epithelial cells is a major feature of diabetic nephropathy. The mechanisms of high glucose (HG) induced apoptosis are not fully understood. Here we demonstrated that, HG induced apoptosis via upregulating the expression of proapoptotic Bcl-2 homology domain 3 (BH3)-only protein Bim protein, but not bring a significant change in the baseline level of autophagy in HK2 cells. The increase of Bim expression was caused by the ugregulation of transcription factors, FOXO1 and FOXO3a...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445900/central-and-peripheral-glucagon-reduces-hyperlipidemia-in-rats-and-hamsters
#4
Vishal Patel, Amit Joharapurkar, Samadhan Kshirsagar, Hiren M Patel, Dheerendra Pandey, Dipam Patel, Kiran Shah, Rajesh Bahekar, Gaurang B Shah, Mukul R Jain
Increased lipid levels in blood contribute to increasing the risk of diabetic complications. Glucagon exerts lipid lowering effects in diabetic state. However, the mechanism behind the lipid reduction by glucagon independent of glucose homeostasis is not well understood. We assessed the actions of glucagon on lipid modulation in blood and markers in liver in hyperlipidemic hamsters and rats. Male Sprague Dawley rats and Golden Syrian hamsters on a hyperlipidemic diet for 2 weeks were administered a single dose of glucagon by subcutaneous (SC, 150 and 300 µg/kg) or intracerebroventricular (ICV, 15 and 30 µg/animal) route...
April 26, 2017: Drug Research
https://www.readbyqxmd.com/read/28445812/portable-aptamer-biosensor-of-platelet-derived-growth-factor-bb-using-a-personal-glucose-meter-with-triply-amplified
#5
Lu Hong, Fu Zhou, Dongmin Shi, Xiaojun Zhang, Guangfeng Wang
Sensitive and rapid detection of platelet-derived growth factor BB (PDGF-BB), a cancer-related protein, could help early diagnosis, treatment, and prognosis of cancers. Although some methods have been developed to detect PDGF-BB, few can provide quantitative results using an affordable and portable device that is suitable for home use or field application. In this work, we report the first use of a portable kind of personal glucose meter (PGM) combining a catalytic and molecular beacon (CAMB) system with a cation exchange reaction (CX reaction) for ultrasensitive PDGF-BB assay...
April 19, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28445811/liraglutide-a-glp-1-receptor-agonist-inhibits-vascular-smooth-muscle-cell-proliferation-by-enhancing-amp-activated-protein-kinase-and-cell-cycle-regulation-and-delays-atherosclerosis-in-apoe-deficient-mice
#6
Teruo Jojima, Kohsuke Uchida, Kazumi Akimoto, Takanori Tomotsune, Kazunori Yanagi, Toshie Iijima, Kunihiro Suzuki, Kikuo Kasai, Yoshimasa Aso
BACKGROUND AND AIMS: Several studies have demonstrated that both native glucagon-like peptide-1 (GLP-1) and GLP-1 receptor agonists suppress the progression of atherosclerosis in animal models. METHODS: We investigated whether liraglutide, a GLP-1 analogue, could prevent the development of atherosclerosis in apolipoprotein E knockout mice (ApoE(-/-)) on a high-fat diet. We also examined the influence of liraglutide on angiotensin II-induced proliferation of rat vascular smooth muscle cells (VSMCs) via enhancement of AMP-activated protein kinase (AMPK) signaling and regulation of cell cycle progression...
April 7, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28445618/ficolin-3-adiponectin-ratio-for-the-prediction-of-gestational-diabetes-mellitus-in-pregnant-women
#7
Xiao-Song Yuan, Hui Shi, Hui-Yan Wang, Bin Yu, Jian Jiang
AIMS/INTRODUCTION: To establish that the ficolin-3/adiponectin ratio is a predictor for gestational diabetes mellitus (GDM) and was eligible for screening tests for GDM. MATERIALS AND METHODS: A prospective cohort study of 86 pregnant women who developed GDM and 273 normal glucose tolerance (NGT) participants was performed. Maternal serum ficolin-3, adiponectin levels were investigated at 16-18 weeks gestation using ELISA. RESULTS: Compared to the NGT group, the GDM group showed significantly higher levels of ficolin-3 and the ratio of ficolin-3/adiponectin; and decreased levels of adiponectin between 16 to 18 weeks of gestation (P < 0...
April 26, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28445531/antagomir-451-inhibits-oxygen-glucose-deprivation-ogd-induced-huvec-necrosis-via-activating-ampk-signaling
#8
Xi Yang, Xiao-Qing He, Guo-Dong Li, Yong-Qing Xu
Oxygen glucose deprivation (OGD) application in cultured human umbilical vein endothelial cells (HUVECs) mimics ischemic injuries. AntagomiR-451, the miroRNA-451 ("miR-451") inhibitor, could activate pro-survival AMP-activated protein kinase (AMPK) signaling. In the current study, we showed that forced-expression of antagomiR-451 depleted miRNA-451 and significantly attenuated OGD-induced necrosis of HUVECs. Activation of AMPK was required for antagomiR-451-mediated pro-survival actions. AMPK inhibition, by AMPKα shRNA or dominant negative mutation, almost completely abolishedantagomiR-451-mediated HUVEC protection again OGD...
2017: PloS One
https://www.readbyqxmd.com/read/28445520/serum-irisin-levels-correlated-to-peritoneal-dialysis-adequacy-in-nondiabetic-peritoneal-dialysis-patients
#9
Zhijun Tan, Zengchun Ye, Jun Zhang, Yanru Chen, Cailian Cheng, Cheng Wang, Xun Liu, Tanqi Lou, Hui Peng
BACKGROUND: Irisin is a recently discovered myokine thought to be involved in multiple metabolism abnormalities in most dialysis patients. However, the myokine has not been thoroughly studied in peritoneal dialysis. This study aimed to evaluate serum irisin levels and establish their relation to dialysis adequacy, insulin resistance, and bone metabolism status in patients on peritoneal dialysis. METHODS: A total of 59 nondiabetic prevalent peritoneal dialysis patients and 52 age- and sex-matched healthy controls were enrolled in this cross-sectional study...
2017: PloS One
https://www.readbyqxmd.com/read/28445487/bmt-decreases-hfd-induced-weight-gain-associated-with-decreased-preadipocyte-number-and-insulin-secretion
#10
Saeed Katiraei, Lisa R Hoving, Lianne van Beek, Sharida Mohamedhoesein, Françoise Carlotti, Janna A van Diepen, Patrick C N Rensen, Mihai G Netea, Ko Willems van Dijk, Jimmy F P Berbée, Vanessa van Harmelen
Experimental bone marrow transplantation (BMT) in mice is commonly used to assess the role of immune cell-specific genes in various pathophysiological settings. The application of BMT in obesity research is hampered by the significant reduction in high-fat diet (HFD)-induced obesity. We set out to characterize metabolic tissues that may be affected by the BMT procedure and impair the HFD-induced response. Male C57BL/6 mice underwent syngeneic BMT using lethal irradiation. After a recovery period of 8 weeks they were fed a low-fat diet (LFD) or HFD for 16 weeks...
2017: PloS One
https://www.readbyqxmd.com/read/28445311/an-observational-study-on-the-relationship-between-serum-uric-acid-and-hypertension-in-a-northern-chinese-population-aged-45-to-59-years
#11
Feng-Na Yu, Yun-Xia Shi, Hai-Ying Cheng, Xun-Lan Huang, Shan-Shan Liu
Little is known about the relationship serum uric acid (SUA) and hypertension in Chinese population. Therefore, the aim of this study was to determine the association between SUA and hypertension in a northern Chinese population. The participants were a group of 1730 Chinese adults aged 45 to 59 years in Shandong Province, who were recruited from the Linyi Nutrition and Health Survey (2015-2016). Hypertension was defined as systolic blood pressure ≥140 mm Hg and/or diastolic blood pressure ≥90 mm Hg...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445144/stroma-derived-hgf-drives-metabolic-adaptation-of-colorectal-cancer-to-angiogenesis-inhibitors
#12
Alessia Mira, Virginia Morello, Maria Virtudes Céspedes, Timothy Perera, Paolo M Comoglio, Ramon Mangues, Paolo Michieli
The role of paracrine Hepatocyte Growth Factor (HGF) in the resistance to angiogenesis inhibitors (AIs) is hidden in xenograft models because mouse HGF fails to fully activate human MET. To uncover it, we compared the efficacy of AIs in wild-type and human HGF knock-in SCID mice bearing orthotopic human colorectal tumors. Species-specific HGF/MET signaling dramatically impaired the response to anti-angiogenic agents and boosted metastatic dissemination. In cell-based assays mimicking the consequences of anti-angiogenic therapy, colorectal cancer cells were completely resistant to hypoxia but extremely sensitive to nutrient deprivation...
April 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445002/glucose-metabolism-targeting-therapy-and-withaferin-a-are-effective-for-egfr-tki-induced-drug-tolerant-persisters
#13
Kei Kunimasa, Tatsuya Nagano, Yohei Shimono, Ryota Dokuni, Tatsunori Kiriu, Shuntaro Tokunaga, Daisuke Tamura, Masatsugu Yamamoto, Motoko Tachihara, Kazuyuki Kobayashi, Miyako Satouchi, Yoshihiro Nishimura
In pathway-targeted cancer drug therapies, the relatively rapid emergence of drug-tolerant persisters (DTPs) substantially limits the overall therapeutic benefit. However, little is known about the roles of DTPs in drug resistance. In this study, we investigated the features of EGFR-TKI induced DTPs and explored a new treatment strategy to overcome the emergence of these DTPs. We used two EGFR mutated lung adenocarcinoma cell lines, PC9 and II-18. They were treated with 2 μM gefitinib for 6, 12, or 24 days or 6 month...
April 26, 2017: Cancer Science
https://www.readbyqxmd.com/read/28444922/regulation-of-organelle-function-by-metformin
#14
REVIEW
Jeongho Kim, Young-Jai You
Metformin ameliorates hyperglycemia without the side effects of lactic acidosis or hypoglycemia. Metformin lowers the blood glucose level by decreasing hepatic glucose production in the liver and by increasing glucose uptake in the muscle. Recent studies show that metformin induces cell death in certain cancer cell lines by interfering with the metabolism of the cancer cells. Therefore, understanding the mechanisms of action for metformin will provide insights into how to better treat diabetes and other metabolic disorders and also into the development of new therapeutic drugs...
April 26, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28444875/methylglyoxal-induced-apoptosis-is-dependent-on-the-suppression-of-c-flipl-expression-via-down-regulation-of-p65-in-endothelial-cells
#15
Ji Hoon Jang, Eun-Ae Kim, Hye-Jin Park, Eon-Gi Sung, In-Hwan Song, Joo-Young Kim, Chang-Hoon Woo, Kyung-Oh Doh, Kook Hyun Kim, Tae-Jin Lee
Methylglyoxal (MGO) is a reactive dicarbonyl metabolite of glucose, and its plasma levels are elevated in patients with diabetes. Studies have shown that MGO combines with the amino and sulphhydryl groups of proteins to form stable advanced glycation end products (AGEs), which are associated with vascular endothelial cell (EC) injury and may contribute to the progression of atherosclerosis. In this study, MGO induced apoptosis in a dose-dependent manner in HUVECs, which was attenuated by pre-treatment with z-VAD, a pan caspase inhibitor...
April 26, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28444863/the-prevalence-of-type-2-diabetes-in-urban-bo-sierra-leone-and-in-the-16-countries-of-the-west-africa-region
#16
Abu James Sundufu, Cecil N Bockarie, Kathryn H Jacobsen
BACKGROUND: The goal of this study was to measure the prevalence of diabetes among adults in urban Bo, Sierra Leone, and to compare the new result to the diabetes prevalence rates reported from studies across West Africa. METHODS: A total of 694 outpatients ages 18 and older at Bo Government Hospital were tested for diabetes between January 2012 and December 2014. Diabetes was defined as a fasting blood sugar level of ≥126 mg/dl (≥7.0 mmol/l). RESULTS: The overall prevalence of diabetes was 6...
April 26, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28444861/lncrna-malat1-is-dysregulated-in-diabetic-nephropathy-and-involved-in-high-glucose-induced-podocyte-injury-via-its-interplay-with-%C3%AE-catenin
#17
Mengsi Hu, Rong Wang, Xiaobing Li, Minghua Fan, Jiangong Lin, Junhui Zhen, Liqun Chen, Zhimei Lv
Metastasis associated lung adenocarcinoma transcript 1(MALAT1) is a long non-coding RNA, broadly expressed in mammalian tissues including kidney and up-regulated in a variety of cancer cells. To date, its functions in podocytes are largely unknown. β-catenin is a key mediator in the canonical and non-canonical Wnt signalling pathway; its aberrant expression promotes podocyte malfunction and albuminuria, and contributes to kidney fibrosis. In this study, we found that MALAT1 levels were increased in kidney cortices from C57BL/6 mice with streptozocin (STZ)-induced diabetic nephropathy, and dynamically regulated in cultured mouse podocytes stimulated with high glucose, which showed a trend from rise to decline...
April 26, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28444853/experimental-type-2-diabetes-induction-reduces-serum-vaspin-but-not-serum-omentin-in-wistar-rats
#18
Cynthia Aparecida de Castro, Karina Ana da Silva, Marina Molina Buffo, Karina Nogueira Zambone Pinto, Fernanda de Oliveira Duarte, Keico Okino Nonaka, Fernanda de Freitas Aníbal, Ana Cláudia Garcia de Oliveira Duarte
Vaspin and omentin are adipose tissue adipokines that have often been related to obesity and its comorbidities. The aim of this study was to investigate the behaviour of serum omentin and vaspin in models of type 2 diabetes. To do this, Wistar rats (~200 g) were randomly divided into two groups: a non-diabetic group (n = 6) and a diabetic group fed on a high-fat diet (n = 6) and a low dose of streptozotocin (Sigma(®) ). All procedures were approved by the Brazilian Ethics Committee. Body weight (BW) and food intake were recorded daily...
April 25, 2017: International Journal of Experimental Pathology
https://www.readbyqxmd.com/read/28444793/dietary-mannoheptulose-does-not-alter-glucose-or-lipid-metabolism-in-adult-labrador-retrievers
#19
L L McKnight, J France, D Wright, G Davenport, A K Shoveller
Mannoheptulose (MH), a glycolytic inhibitor, has been preliminarily investigated as a novel functional food ingredient for dogs. This study aimed to determine the effects of dietary MH, delivered as an extract of un-ripened avocados, on fatty acid and glucose kinetics in healthy adult Labrador Retriever dogs (n = 12 dogs). The study was a double-blindcrossover with each dog receiving both dietary treatments, control (CON) and MH (400 mg/kg of diet), in random order. Glucose and glycerol plasma turnover (Ra) and oxidation (Ox) were measured in fasting and in response to repeated meal feeding ("fed") with stable isotope tracers (U-(13) C-glucose, 1,1,2,3,3-D5 -glycerol) and indirect calorimetry...
April 26, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28444662/early-mitochondrial-adaptations-in-skeletal-muscle-to-obesity-and-obesity-resistance-differentially-regulated-by-high-fat-diet
#20
Jingyu Sun, Tao Huang, Zhengtang Qi, Songhui You, Jingmei Dong, Chen Zhang, Lili Qin, Yunhe Zhou, Shuzhe Ding
The mechanism for different susceptibilities to obesity after short-term high-fat diet (HFD) feeding is largely unknown. Given the close association between obesity occurrence and mitochondrial dysfunction, the early events in skeletal muscle mitochondrial adaptations between HFD-induced obesity (DIO) and HFD-induced obesity resistant (DIO-R) lean phenotype under excess nutritional environment were explored.ICR/JCL male mice were randomly divided into 2 groups, as follows: low-fat diet (LFD) and HFD groups...
April 25, 2017: Experimental and Clinical Endocrinology & Diabetes
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