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https://www.readbyqxmd.com/read/28645936/angiopoietin-like-protein-4-is-a-high-density-lipoprotein-hdl-component-for-hdl-metabolism-and-function-in-nondiabetic-participants-and-type-2-diabetic-patients
#1
Long-Yan Yang, Cai-Guo Yu, Xu-Hong Wang, Sha-Sha Yuan, Li-Jie Zhang, Jia-Nan Lang, Dong Zhao, Ying-Mei Feng
BACKGROUND: ANGPTL4 (angiopoietin-like protein 4) is a LPL (lipoprotein lipase) inhibitor and is present in high-density lipoprotein (HDL). However, it is not defined whether ANGPTL4 in HDLs could affect HDL metabolism and function in type 2 diabetes mellitus (T2DM). METHODS AND RESULTS: ANGPTL4 levels in the circulation and HDLs were quantified in nondiabetic participants (n=201, 68.7% females) and T2DM patients (n=185, 66.5% females). HDLs were isolated from nondiabetic controls and T2DM patients to assess cholesterol efflux or subjected to endothelial lipase (EL)-overexpressed HEK293 cells for EL hydrolysis in vitro...
June 23, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28641978/angptl4-t266m-variant-is-associated-with-reduced-cancer-invasiveness
#2
Zhen Wei Tan, Ziqiang Teo, Carol Tan, Chee Chong Choo, Wei Sheng Loo, Yiyang Song, Zhi Yang Tam, Sean Pin Ng, Hong Zheng Koh, Yi Siang Ng, Susana Geifman Shochat, Yin Hoe Yau, Pengcheng Zhu, Nguan Soon Tan
Angiopoietin-like 4 (ANGPTL4) is a secretory protein that can be cleaved to form a N-terminal and a C-terminal protein. Studies performed thus far have linked ANGPTL4 to several cancer-related and metabolic processes. Notably, several point mutations in the C-terminal ANGPTL4 (cANGPTL4) have been reported, although no studies have been performed that ascribed these mutations to cancer-related and metabolic processes. In this study, we compared the characteristics of tumors with and without wild-type (wt) cANGPTL4 and tumors with cANGPTL4 bearing the T266M mutation (T266M cANGPTL4)...
June 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28574600/diallyl-trisulfides-a-natural-histone-deacetylase-inhibitor-attenuate-hif-1%C3%AE-synthesis-and-decreases-breast-cancer-metastasis
#3
Zhonghong Wei, Yunlong Shan, Li Tao, Yuping Liu, Zhijie Zhu, Zhaoguo Liu, Yuanyuan Wu, Wenxing Chen, Aiyun Wang, Yin Lu
Intratumoral hypoxia promotes the distant metastasis of cancer subclones. The clinical expression level of hypoxia-inducible factor-1α (HIF-1α) reflects the prognosis of a variety of cancers, especially breast cancer. Histone deacetylase (HDAC) inhibitors can target HIF-1α protein due to von Hippel-Lindau protein-dependent degradation. Dietary organosulfur compounds, such as those in garlic, have been reported as HDAC inhibitors. The effects of diallyl sulfide (DAS), diallyl disulfide (DADS) and diallyl trisulfide (DATS) on the ratio of firefly/Renilla luciferase activity in hypoxic MDA-MB-231 cells were determined...
June 2, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28560449/hypoxia-induced-angiopoietin-like-protein-4-as-a-clinical-biomarker-and-treatment-target-for-human-prostate-cancer
#4
Shinro Hata, Takeo Nomura, Kazunori Iwasaki, Ryuta Sato, Mutsushi Yamasaki, Fuminori Sato, Hiromitsu Mimata
Angiopoietin-like protein 4 (ANGPTL4) is a multifunctional protein, playing roles in glucose and lipid metabolism, inflammation, angiogenesis, and tumorigenesis. Recent research suggests that ANGPTL4 is induced by hypoxia and is a useful diagnostic or prognostic marker for various cancers. However, it remains unclear whether ANGPTL4 expression influences prostate cancer. Here we examined the biological and clinical relevance of ANGPTL4 expression in prostate cancer. Firstly we examined ANGPTL4 expression in the prostate cancer cell lines LNCaP and LNCaP/CH incubated at 1% O2 for at least 6 months...
May 24, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28528274/angiopoietin-like-8-angptl8-controls-adipocyte-lipolysis-and-phospholipid-composition
#5
Raghavendra Mysore, Gerhard Liebisch, You Zhou, Vesa M Olkkonen, P A Nidhina Haridas
Angiopoietin-like 8 (Angptl8) inhibits lipolysis in the circulation together with Angplt3 and controls post-prandial fat storage in white adipose tissue (WAT). It is strongly induced by insulin in vivo in WAT and in vitro in adipocytes. In this study we addressed the function of Angptl8 in adipocytes by its stable lentivirus-mediated knock-down in 3T3-L1 cells, followed by analyses of triglyceride (TG) storage, lipid droplet (LD) morphology, the cellular lipidome, lipolysis, and gene expression. Depletion of Angptl8 did not drastically affect the adipocyte differentiation of 3T3-L1 cells but resulted in a moderate (18-19%) reduction of stored TGs...
May 18, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28515432/high-salt-intake-negatively-regulates-fat-deposition-in-mouse
#6
Huanxian Cui, Shuyan Yang, Maiqing Zheng, Ranran Liu, Guiping Zhao, Jie Wen
High-salt (HS) intake contributes to hypertension and cardiopathy, but the effect of HS on fat deposition is controversial. Feed intake, fat mass, the percentage of abdominal fat, heat production, rate of oxygen consumption and the respiratory exchange ratio of mice on a HS diet were significantly decreased (P < 0.01 or 0.05) compared with mice on a normal-salt (NS) diet. An in vitro experiment with differentiating pre-adipocytes showed reduced fat deposition in the presence of high concentrations of NaCl (>0...
May 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28502512/metreleptin-therapy-lowers-plasma-angiopoietin-like-protein-3-in-patients-with-generalized-lipodystrophy
#7
Ranganath Muniyappa, Brent S Abel, Asha Asthana, Mary F Walter, Elaine K Cochran, Alan T Remaley, Monica C Skarulis, Phillip Gorden, Rebecca J Brown
BACKGROUND: Reduced triglyceride clearance due to impaired lipoprotein lipase-mediated lipolysis contributes to severe hypertriglyceridemia in lipodystrophy. Angiopoietin-like protein 3 (ANGPTL3) and 4 (ANGPTL4) impair clearance of triglycerides by inhibiting lipoprotein lipase. Whether circulating ANGPTL3/4 levels are altered in lipodystrophy and the effects of leptin replacement on these ANGPTLs are unknown. OBJECTIVE: To examine if ANGPTL3/4 levels are elevated in patients with generalized lipodystrophy and assess the effects of leptin replacement on these ANGPTLs...
March 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28468008/effect-of-maxing-shigan-tang-on-h1n1-influenza-a-virus-associated-acute-lung-injury-in-mice
#8
Yanchun Zhong, Jie Zhou, Ning Liang, Bihao Liu, Ruirui Lu, Yu He, Chunlin Liang, Junbiao Wu, Yuan Zhou, Miaomiao Hu, Jiuyao Zhou
OBJECTIVE: This study is aimed at examining the effects of Maxing Shigan Tang (MST) treatment on H1N1-associated acute lung injury (ALI) and exploring the possible mechanism. MATERIAL AND METHODS: Mice were randomly divided into a control group, model group, peroxisomal proliferator activator receptor γ (PPARγ) inhibition group (PPARγ-), PPARγ activation group (PPARγ+), and MST group. Influenza A (H1N1) virus of the Fort Monmouth 1 (FM1) strain was used to induce an ALI mice model...
May 4, 2017: Intervirology
https://www.readbyqxmd.com/read/28458654/multiple-roles-of-angiopoietin-like-4-in-osteolytic-disease
#9
REVIEW
Helen J Knowles
Hypoxia and the hypoxia-inducible factor (HIF) transcription factor drive pathological bone loss in conditions including rheumatoid arthritis (RA), osteoarthritis, osteoporosis, primary bone tumours, and bone metastatic cancer. There is therefore considerable interest in determining the function(s) of HIF-induced genes in these pathologies. Angiopoietin-like 4 (ANGPTL4) is an adipose-derived, HIF-1α- and PPARγ-induced gene that was originally discovered as an endocrine and autocrine/paracrine regulator of lipid metabolism...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28441404/angiopoietin-like-4-and-minimal-change-disease
#10
Gabriel Cara-Fuentes, Alfons Segarra, Cecilia Silva-Sanchez, Heiman Wang, Miguel A Lanaspa, Richard J Johnson, Eduardo H Garin
BACKGROUND: Minimal Change Disease (MCD) is the most common type of nephrotic syndrome in children. Angiopoietin-like-4 (Angplt4) has been proposed as mediator of proteinuria in MCD. The aim of this study was to evaluate the role of Angptl4 as a biomarker in MCD. METHODS: Patients with biopsy-proven primary MCD, focal segmental glomerulosclerosis, membranous nephropathy (60, 52 and 52 respectively) and 18 control subjects had urinary and serum Angptl4 measured by Elisa...
2017: PloS One
https://www.readbyqxmd.com/read/28412693/feeding-angptl4-mice-trans-fat-promotes-foam-cell-formation-in-mesenteric-lymph-nodes-without-leading-to-ascites
#11
Antwi-Boasiako Oteng, Asmita Bhattacharya, Susanne Brodesser, Ling Qi, Nguan Soon Tan, Sander Kersten
Angiopoietin-like 4 (ANGPTL4) regulates plasma triglyceride levels by inhibiting LPL. Inactivation of ANGPTL4 decreases plasma triglycerides and reduces the risk of coronary artery disease. Unfortunately, targeting ANGPTL4 for the therapeutic management of dyslipidemia and atherosclerosis is hampered by the observation that mice and monkeys in which ANGPTL4 is inactivated exhibit lipid accumulation in the mesenteric lymph nodes (MLNs). In mice these pathological events exclusively unfold upon feeding a high saturated FA diet and are followed by an ultimately lethal pro-inflammatory response and chylous ascites...
June 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28404638/kidney-triglyceride-accumulation-in-the-fasted-mouse-is-dependent-upon-serum-free-fatty-acids
#12
Diego Scerbo, Ni-Huiping Son, Alaa Sirwi, Lixia Zeng, Kelli M Sas, Vincenza Cifarelli, Gabriele Schoiswohl, Lesley-Ann Huggins, Namrata Gumaste, Yunying Hu, Subramaniam Pennathur, Nada A Abumrad, Erin E Kershaw, M Mahmood Hussain, Katalin Susztak, Ira J Goldberg
Lipid accumulation is a pathological feature of every type of kidney injury. Despite this striking histological feature, physiological accumulation of lipids in the kidney is poorly understood. We studied whether the accumulation of lipids in the fasted kidney are derived from lipoproteins or NEFAs. With overnight fasting, kidneys accumulated triglyceride, but had reduced levels of ceramide and glycosphingolipid species. Fasting led to a nearly 5-fold increase in kidney uptake of plasma [(14)C]oleic acid. Increasing circulating NEFAs using a β adrenergic receptor agonist caused a 15-fold greater accumulation of lipid in the kidney, while mice with reduced NEFAs due to adipose tissue deficiency of adipose triglyceride lipase had reduced triglycerides...
June 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28398948/angiopoietin-like-4-enhances-the-proliferation-and-migration-of-tendon-fibroblasts
#13
Sarwat Jamil, Rouhollah Mousavizadeh, Mani Roshan-Moniri, Scott J Tebbutt, Robert G McCormack, Vincent Duronio, Alex Scott
PURPOSE: Angiopoietin-like 4 (ANGPTL4) is known to play a variety of roles in the response to exercise, and more recently has been shown to enhance the healing of tendon, a fibrous load-bearing tissue required for efficient movement. The objective of the current study was to further explore the mechanisms of ANGPTL4's impact on tendon cells using a gene array approach. METHODS: Human tendon fibroblasts were treated with recANGPTL4 and their global transcriptome response analyzed after 4 and 24 hours...
April 11, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28395986/a-decade-of-progress-on-the-genetic-basis-of-coronary-artery-disease-practical-insights-for-the-internist
#14
REVIEW
Domenico Girelli, Chiara Piubelli, Nicola Martinelli, Roberto Corrocher, Oliviero Olivieri
Clinicians are well aware of the importance of a positive family history for coronary artery disease (CAD). Nonetheless, elucidation of the genetic basis of CAD has long proven difficult. The scenario changed in the last decade through the application of modern genomic technologies, like genome-wide association studies (GWAS) and next generation sequencing (NGS). GWAS have discovered over 60 common variants highly associated with CAD. For predictive purposes, such variants have been used to build up Genetic Risk Scores (GRSs), but their incorporation into classical prediction models does not appear substantially outperform the simple addition of family history...
April 7, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28371666/angiopoietin-like-protein-3-and-4-expression-4-and-their-serum-levels-in-hepatocellular-carcinoma
#15
Amal S El-Shal, Haidy E Zidan, Nearmeen M Rashad, Fady M Wadea
BACKGROUND: Hepatocellular carcinoma (HCC) is the 6th most common cancer and the 3rd leading cause of cancer causing death allover the world. The aim of this research to explore the clinical relevance of blood angiopoietin-like protein-3 (ANGPTL3) and ANGPTL4 expression and their proteins levels as non invasive biomarkers in cirrhotic and HCC patients and their influence on the clinicopathological features of HCC. MATERIAL AND METHODS: This work comprised 200 patients with chronic hepatitis (120 cases complicated with cirrhosis, 80 patients with primary HCC) and 100 controls...
March 31, 2017: Cytokine
https://www.readbyqxmd.com/read/28320596/phillyrin-lowers-body-weight-in-obese-mice-via-the-modulation-of-ppar-beta-delta-angptl-4-pathway
#16
Hong-Bo Xiao, Guo-Guang Sui, Xiang-Yang Lu
OBJECTIVE: Previous investigations have shown that the peroxisome proliferator activated receptor beta/delta (PPAR<beta>/<delta>)-angiopoietin-like protein 4 (ANGPTL4) pathways may be a new pharmacologic target for treatment of obesity. The present study was conducted to test the effect of phillyrin, ‎a glucoside, on obesity in mice. METHOD: Fifty mice were randomly divided into 5 groups (n=10): control group (C57BL/6J mice), obese mice group, two groups of obese mice treated with phillyrin (15 or 45mg/kg/day), one group of obese mice treated with PPAR<beta>/<delta> agonist GW0742 (3mg/kg/day)...
March 17, 2017: Obesity Research & Clinical Practice
https://www.readbyqxmd.com/read/28287161/angiopoietin-like-4-mediates-colonic-inflammation-by-regulating-chemokine-transcript-stability-via-tristetraprolin
#17
Terri Phua, Ming Keat Sng, Eddie Han Pin Tan, Dickson Shao Liang Chee, Yinliang Li, Jonathan Wei Kiat Wee, Ziqiang Teo, Jeremy Soon Kiat Chan, Maegan Miang Kee Lim, Chek Kun Tan, Pengcheng Zhu, Velmurugesan Arulampalam, Nguan Soon Tan
Many gastrointestinal diseases exhibit a protracted and aggravated inflammatory response that can lead to hypercytokinaemia, culminating in extensive tissue damage. Recently, angiopoietin-like 4 (ANGPTL4) has been implicated in many inflammation-associated diseases. However, how ANGPTL4 regulates colonic inflammation remains unclear. Herein, we show that ANGPTL4 deficiency in mice (ANGPTL4(-/-)) exacerbated colonic inflammation induced by dextran sulfate sodium (DSS) or stearic acid. Microbiota was similar between the two genotypes prior DSS challenge...
March 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28267563/protective-effects-of-angiopoietin-like-4-on-the-blood-brain-barrier-in-acute-ischemic-stroke-treated-with-thrombolysis-in-mice
#18
Bin Zhang, Xiaofeng Xu, Xiuli Chu, Xiaoyang Yu, Yuwu Zhao
AIMS: Given the risk of blood-brain barrier damage (BBB) caused by ischemic and tissue plasminogen activator thrombolysis, the preservation of vascular integrity is important. Angiopoietin-like 4 (ANGPTL4), a protein secreted in hypoxia, is involved in the regulation of vascular permeability. We hypothesized that Angptl4 might exert a protective effect in thrombolysis through stabilizing blood-brain barrier and inhibit hyper-permeability. METHODS: We investigated the role of Angptl4 in stroke using a transient focal cerebral ischemia mouse model...
March 4, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28266623/commensal-gut-bacteria-modulate-phosphorylation-dependent-ppar%C3%AE-transcriptional-activity-in-human-intestinal-epithelial-cells
#19
Malgorzata Nepelska, Tomas de Wouters, Elsa Jacouton, Fabienne Béguet-Crespel, Nicolas Lapaque, Joël Doré, Velmurugesan Arulampalam, Hervé M Blottière
In healthy subjects, the intestinal microbiota interacts with the host's epithelium, regulating gene expression to the benefit of both, host and microbiota. The underlying mechanisms remain poorly understood, however. Although many gut bacteria are not yet cultured, constantly growing culture collections have been established. We selected 57 representative commensal bacterial strains to study bacteria-host interactions, focusing on PPARγ, a key nuclear receptor in colonocytes linking metabolism and inflammation to the microbiota...
March 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28237587/hepatic-mrna-expression-for-genes-related-to-somatotropic-axis-glucose-and-lipid-metabolisms-and-inflammatory-response-of-periparturient-dairy-cows-treated-with-recombinant-bovine-somatotropin
#20
P R B Silva, W J Weber, B A Crooker, R J Collier, W W Thatcher, R C Chebel
Objectives of this experiment were to evaluate the effects of recombinant bovine somatotropin (rbST) treatment of periparturient dairy cows on hepatic mRNA expression for genes related to the somatotropic axis, insulin, glucose, and lipid metabolism, inflammation, and oxidative stress. Holstein cows were enrolled in the experiment at 253 ± 3 d of gestation and assigned to 1 of 3 treatments: untreated control (n = 53), 87.5 mg of rbST (n = 56; rbST87.5), and 125 mg of rbST (n = 57; rbST125). Cows in the rbST87...
May 2017: Journal of Dairy Science
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