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FABP4

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https://www.readbyqxmd.com/read/28100914/tet-mediated-hydroxymethylcytosine-at-the-ppar%C3%AE-locus-is-required-for-initiation-of-adipogenic-differentiation
#1
Y Yoo, J H Park, C Weigel, D B Liesenfeld, D Weichenhan, C Plass, D-G Seo, A M Lindroth, Y J Park
BACKGROUND/OBJECTIVES: Adipose tissue is one of the main organs regulating energy homeostasis, via energy storage as well as endocrine function. The adipocyte cell number is largely determined by adipogenesis. While the molecular mechanism of adipogenesis has been extensively studied, its role in dynamic DNA methylation plasticity remains unclear. Recently, it has been shown that Tet methylcytosine dioxygenase (TET) are catalytically capable of oxidizing DNA 5-methylcytosine (5-mC) to 5-hydroxymethylcytosine (5-hmC) towards a complete removal of the methylated cytosine...
January 19, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28095649/the-effect-of-mechanical-stress-on-the-proliferation-adipogenic-differentiation-and-gene-expression-of-human-adipose-derived-stem-cells
#2
Nora E Paul, Bernd Denecke, Bong-Sung Kim, Alice Dreser, Jürgen Bernhagen, Norbert Pallua
To allow for a better implementation of external volume expansion to clinical applications for soft tissue regeneration, it is necessary to comprehensively understand the underlying mechanisms. Since human adipose-derived stem cells (hASCs) play a crucial role in soft tissue enlargement, we investigated the impact of cyclic stretch on gene expression, proliferation rate, and adipogenic differentiation of these cells. After cyclic stretching, RNA was extracted and subjected to DNA microarray analysis and RT-qPCR...
January 17, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28090302/three-dimensional-micro-computed-tomography-analysis-of-the-lung-vasculature-and-differential-adipose-proteomics-in-the-sugen-hypoxia-rat-model-of-pulmonary-arterial-hypertension
#3
Kelly J Shields, Kostas Verdelis, Michael J Passineau, Erin M Faight, Lee Zourelias, Changgong Wu, Rong Chong, Raymond L Benza
Pulmonary arterial hypertension (PAH) is a rare disease characterized by significant vascular remodeling. The obesity epidemic has produced great interest in the relationship between small visceral adipose tissue depots producing localized inflammatory conditions, which may link metabolism, innate immunity, and vascular remodeling. This study used novel micro computed tomography (microCT) three-dimensional modeling to investigate the degree of remodeling of the lung vasculature and differential proteomics to determine small visceral adipose dysfunction in rats with severe PAH...
December 2016: Pulmonary Circulation
https://www.readbyqxmd.com/read/28074253/c-abl-inhibition-mitigates-diet-induced-obesity-through-improving-insulin-sensitivity-of-subcutaneous-fat-in-mice
#4
Rong Wu, Jian-Guang Sun, Ji-Qiu Wang, Binhua Li, Qingsong Liu, Guang Ning, Wanzhu Jin, Zengqiang Yuan
AIMS/HYPOTHESIS: High-energy diets are among the main causes of the global epidemic of metabolic disorders, including obesity and type 2 diabetes. The mechanisms of high-energy-diet-induced metabolic disorders are complex and largely unknown. The non-receptor tyrosine kinase c-Abl plays an important role in adipogenesis in vitro but its role in vivo in the regulation of metabolism is still elusive. Hence, we sought to address the role of c-Abl in diet-induced obesity and obesity-associated insulin resistance...
January 10, 2017: Diabetologia
https://www.readbyqxmd.com/read/28051918/genetic-variation-in-fabp4-and-evaluation-of-its-effects-on-beef-cattle-fat-content
#5
Daniel E Goszczynski, Juliana Papaleo-Mazzucco, María V Ripoli, Edgardo L Villarreal, Andrés Rogberg-Muñoz, Carlos A Mezzadra, Lilia M Melucci, Guillermo Giovambattista
FABP4 is a protein primarily expressed in adipocytes and macrophages that plays a key role in fatty acid trafficking and lipid hydrolysis. FABP4 gene polymorphisms have been associated with meat quality traits in cattle, mostly in Asian breeds under feedlot conditions. The objectives of this work were to characterize FABP4 genetic variation in several worldwide cattle breeds and evaluate possible genotype effects on fat content in a pasture-fed crossbred (Angus-Hereford-Limousin) population. We re-sequenced 43 unrelated animals from nine cattle breeds (Angus, Brahman, Creole, Hereford, Holstein, Limousin, Nelore, Shorthorn, and Wagyu) and obtained 22 single nucleotide polymorphisms (SNPs) over 3,164 bp, including four novel polymorphisms...
January 4, 2017: Animal Biotechnology
https://www.readbyqxmd.com/read/28049638/leukemic-blasts-program-bone-marrow-adipocytes-to-generate-a-pro-tumoral-microenvironment
#6
Manar S Shafat, Thomas Oellerich, Sebastian Mohr, Stephen D Robinson, Dylan R Edwards, Christopher R Marlein, Rachel E Piddock, Matthew Fenech, Lyubov Zaitseva, Amina Abdul-Aziz, Jeremy Turner, Johnathan A Watkins, Matthew Lawes, Kristian M Bowles, Stuart A Rushworth
Despite currently available therapies most patients diagnosed with acute myeloid leukemia (AML) die of their disease. Tumor-host interactions are critical for the survival and proliferation of cancer cells; accordingly, we hypothesise that specific targeting of the tumor microenvironment may constitute an alternative or additional strategy to conventional tumor-directed chemotherapy. Since adipocytes have been shown to promote breast and prostate cancer proliferation, and because the bone marrow adipose tissue (MAT) accounts for up to 70% of bone marrow volume in adult humans, we examined the adipocyte-leukaemia cell interactions to determine if they are essential for the growth and survival of AML...
January 3, 2017: Blood
https://www.readbyqxmd.com/read/28039570/different-transcriptional-profiling-between-senescent-and-non-senescent-human-coronary-artery-endothelial-cells-hcaecs-by-omeprazole-and-lansoprazole-treatment
#7
Laura Costarelli, Robertina Giacconi, Marco Malavolta, Andrea Basso, Francesco Piacenza, Mauro Provinciali, Marcello G Maggio, Andrea Corsonello, Fabrizia Lattanzio
Recent evidence suggests that high dose and/or long term use of proton pump inhibitors (PPIs) may increase the risk of adverse cardiovascular events in older patients, but mechanisms underlying these detrimental effects are not known. Taking into account that the senescent endothelial cells have been implicated in the genesis or promotion of age-related cardiovascular disease, we hypothesized an active role of PPIs in senescent cells. The aim of this study is to investigate the changes in gene expression occurring in senescent and non-senescent human coronary artery endothelial cells (HCAECs) following Omeprazole (OPZ) or Lansoprazole (LPZ) treatment...
December 30, 2016: Biogerontology
https://www.readbyqxmd.com/read/27991582/ubiquitylation-directly-induces-fold-destabilization-of-proteins
#8
Daichi Morimoto, Erik Walinda, Harumi Fukada, Kenji Sugase, Masahiro Shirakawa
Ubiquitin is a common post-translational modifier and its conjugation is a key signal for proteolysis by the proteasome. Because the molecular mass of ubiquitin is larger than that of other modifiers such as phosphate, acetyl, or methyl groups, ubiquitylation not only influences biochemical signaling, but also may exert physical effects on its substrate proteins by increasing molecular volume and altering shape anisotropy. Here we show that ubiquitylation destabilizes the fold of two proteins, FKBP12 and FABP4, and that elongation of the conjugated ubiquitin chains further enhances this destabilization effect...
December 19, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27986616/thermogenesis-fatty-acid-synthesis-with-oxidation-and-inflammation-in-the-brown-adipose-tissue-of-ob-ob-mice
#9
Fabiane Ferreira Martins, Thereza Cristina Lonzetti Bargut, Marcia Barbosa Aguila, Carlos Alberto Mandarim-de-Lacerda
Brown adipose tissue (BAT) is specialized in heat production, but its metabolism in ob/ob mice is still a matter of debate. We aimed to verify ob/ob mice BAT using C57Bl/6 male mice (as the wild-type, WT) and leptin-deficient ob/ob mice (on the C57Bl/6 background strain), at three months of age (n=10/group). At euthanasia, animals had their interscapular BAT weighed, and prepared for analysis (Western blot, and RT-qPCR). In comparison with the WT group, the ob/ob group showed reduced thermogenic signaling markers (gene expression of beta 3-adrenergic receptor, beta3-AR; PPARgamma coactivator 1 alpha, PGC1alpha, and uncoupling protein 1, UCP1)...
December 13, 2016: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/27983982/mir-24-suppression-of-poz-btb-and-at-hook-containing-zinc-finger-protein-1-patz1-protects-endothelial-cell-from-diabetic-damage
#10
Yan-Xiang Cui, Yu-Zhong Hua, Ning Wang, Xun Chen, Fang Wang, Jun-Ying Liu, Lei-Lei Wang, Chang-You Yan, Yang-Guo Ma, Yun-He Cao, Xiu-Hua Zhang
The regulatory transcriptional factor PATZ1 is abnormally up-regulated in diabetic endothelial cells (ECs) where it acts as an anti-angiogenic factor via modulation of fatty acid-binding protein 4 (FABP4) signaling. The aim of the present work was to elucidate the upstream molecular events regulating PATZ1 expression in diabetic angiogenesis. The bioinformatics search for microRNAs (miRNAs) able to potentially target PATZ1 led to the identification of several miRNAs. Among them we focused on the miR-24 since the multiple targets of miR-24, which have so far been identified in beta cells, cardiomyocytes and macrophages, are all involved in diabetic complications...
October 28, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27955667/the-effect-of-chinese-herbs-and-its-effective-components-on-coronary-heart-disease-through-ppars-pgc1%C3%AE-pathway
#11
Qiyan Wang, Chun Li, Qian Zhang, Yuanyuan Wang, Tianjiao Shi, Linghui Lu, Yi Zhang, Yong Wang, Wei Wang
BACKGROUND: DanQi pill (DQP) is prescribed widely in China and has definite cardioprotective effect on coronary heart disease. Our previous studies proved that DQP could effectively regulate plasma levels of high density lipoprotein (HDL) and low density lipoprotein (LDL). However, the regulatory mechanisms of DQP and its major components Salvianolic acids and Panax notoginseng saponins (DS) on lipid metabolism disorders haven't been comprehensively studied so far. METHODS: Rat model of coronary heart disease was induced by left anterior descending (LAD) artery ligation operations...
December 12, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27939595/fabrication-of-size-controlled-linoleic-acid-particles-and-evaluation-of-their-in-vitro-lipotoxicity
#12
Eun-Soo Lee, Se-Hwa Kim
The biological activities of fatty acids (FAs) can differ with size even for lipids of similar compositions. The aim of this study was to develop size-controlled FA particles and to evaluate their toxicity as a function of size. Well-stabilized nano- and microscale linoleic acid (LA) were fabricated based on specific physical factors. Then, resulting LAs were characterized by size distribution, surface charge, assembly structure, composition, and serum effects. The sizes of the nano- (LAnano) and microscale (LAmicro) LAs, determined by electron microscopy, were 109 nm and 12 μm, respectively...
December 7, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/27936164/transcriptome-and-metabolome-analyses-in-exogenous-fabp4-and-fabp5-treated-adipose-derived-stem-cells
#13
Tokunori Yamamoto, Masato Furuhashi, Takeshi Sugaya, Tsuyoshi Oikawa, Megumi Matsumoto, Yasuhito Funahashi, Yoshihisa Matsukawa, Momokazu Gotoh, Tetsuji Miura
Adipose-derived stem cells (ADSC), which exist near adipocytes in adipose tissue, have been used as a potential tool of regenerative medicine. Lipid chaperones, fatty acid-binding protein 4 (FABP4) and 5 (FABP5), are abundantly expressed in adipocytes. FABP4 has recently been shown to be secreted from adipocytes during lipolysis in a non-classical pathway and may act as an adipokine. Here, we investigated the role of exogenous FABP4 and FABP5 in transcriptional and metabolic regulation in ADSC. FABP4 and FABP5 were little expressed in ADSC...
2016: PloS One
https://www.readbyqxmd.com/read/27928650/cytoglobin-a-potential-marker-for-adipogenic-differentiation-in-preadipocytes-in-vitro
#14
Ayşegül Doğan, Selami Demirci, Binnur Kıratlı, Fikrettin Şahin
Obesity, mainly characterized by the excess fat storage, is a global health problem resulting in serious morbidity and mortality. Identification of molecular mechanisms in adipogenic differentiation pathway might lead to development of new strategies for diagnosis, prevention and therapy of obesity and associated diseases. Discovery of new genes and proteins in the differentiation pathway could help to understand the key specific regulators of the adipogenesis. Cytoglobin (Cygb), identified as a new globin family member protein, is expressed in various tissues...
December 7, 2016: Cytotechnology
https://www.readbyqxmd.com/read/27914823/rapamycin-inhibits-the-proliferation-of-endothelial-cells-in-hemangioma-by-blocking-the-mtor-fabp4-pathway
#15
Ying Wang, Jiarui Chen, Weiqing Tang, Yanping Zhang, Xiaoyan Li
FABP4 is widely expressed in both normal and pathologic tissues. It promotes cell proliferation, survival and migration of endothelial cells, and therefore, angiogenesis. However, the role of FABP4 in hemangioma or hemangioma endothelial cells (HemECs) has not been explored. In this study, we investigated whether FABP4 directly regulates the proliferation of HemECs. The expression of cell cycle checkpoint genes was analyzed with the microarray data of human dermal microvascular endothelial cells (HDVECs) and infantile hemangioma endothelial cells...
January 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27905292/the-effect-of-iron-deficiency-on-the-temporal-changes-in-the-expression-of-genes-associated-with-fat-metabolism-in-the-pregnant-rat
#16
Susan M Hay, Harry J McArdle, Helen E Hayes, Valerie J Stevens, William D Rees
Iron is essential for the oxidative metabolism of lipids. Lipid metabolism changes during gestation to meet the requirements of the growing fetus and to prepare for lactation. The temporal effects of iron deficiency during gestation were studied in female rats fed complete or iron-deficient diets. Plasma triglycerides were elevated in the iron-deficient group throughout gestation. There were time-dependent changes in the triglyceride content of the maternal liver, falling at the midpoint of gestation and then increasing on d21...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27899990/microarray-analysis-of-differentially-expressed-genes-and-linker-genes-associated-with-the-molecular-mechanism-of-colorectal-cancer
#17
Xingjie Shen, Meng Yue, Fansheng Meng, Jingyu Zhu, Xiaoyan Zhu, Yakun Jiang
Colorectal cancer (CRC) is one of the most prevalent malignancies worldwide and remains the third leading cause of cancer-associated mortality. The present study aimed to fully elucidate the pathogenesis of CRC and identify associated genes in tumor development. Microarray GSE44076, GSE41328 and GSE44861 datasets were downloaded from the Gene Expression Omnibus database and integrated with meta-analysis. Differentially-expressed genes (DEGs) were identified from CRC samples compared with adjacent non-cancerous controls using the Limma package in R, followed by functional analysis using the Database for Annotation, Visualization, and Integrated Discovery online tool...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27885273/fatty-acid-binding-protein-fabp4-mechanistically-links-obesity-with-aggressive-aml-by-enhancing-aberrant-dna-methylation-in-aml-cells
#18
F Yan, N Shen, J X Pang, Y W Zhang, E Y Rao, A M Bode, A Al-Kali, D E Zhang, M R Litzow, B Li, S J Liu
Obesity is becoming more prevalent worldwide and is a major risk factor for cancer development. Acute myeloid leukemia (AML), the most common acute leukemia in adults, remains a frequently fatal disease. Here we investigated the molecular mechanisms by which obesity favors AML growth and uncovered the fatty acid-binding protein 4 (FABP4) and DNA methyltransferase 1 (DNMT1) regulatory axis that mediates aggressive AML in obesity. We showed that leukemia burden was much higher in high-fat diet-induced obese mice, which had higher levels of FABP4 and interleukin (IL)-6 in the sera...
December 2, 2016: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/27871949/cloning-and-characterization-of-fatty-acid-binding-proteins-fabps-from-japanese-seabass-lateolabraxjaponicus-liver-and-their-gene-expressions-in-response-to-dietary-arachidonic-acid-ara
#19
Houguo Xu, Yuanqin Zhang, Chengqiang Wang, Yuliang Wei, Keke Zheng, Mengqing Liang
In the present study, putative cDNA of five fabp isoforms, i.e., fabp1, fabp2, fabp3, fabp4, and fabp7, was cloned and characterized from the liver of Japanese seabass (Lateolabrax japonicus), and their expression in response to diets with different arachidonic acid (ARA) levels (0.05%, 0.22%, 0.37%, 0.60%, 1.38% and 2.32% of dry matter) was investigated following a feeding trial. The Japanese seabass fabps showed high identity to their orthologs in other fish species and mammals. However, a specific fabp of Japanese seabass showed much lower identity to other Japanese seabass fabps...
February 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/27865496/peroxisome-proliferator-activated-receptor-delta-facilitates-lipid-secretion-and-catabolism-of-fatty-acids-in-dairy-goat-mammary-epithelial-cells
#20
H B Shi, C H Zhang, W Zhao, J Luo, J J Loor
In rodents, peroxisome proliferator-activated receptor delta (PPARD) is associated primarily with catabolism of fatty acids. However, the role of PPARD in regulating lipid metabolism in ruminant mammary gland remains unknown. In the present study, we assessed the mRNA abundance of PPARD at 3 stages of lactation in goat mammary tissue. Results revealed that PPARD had lower expression at peak lactation than in the nonlactating period. Luciferase assays revealed that GW0742 (GW), a specific PPARD ligand, enhanced the activity of the PPARD response element in goat mammary epithelial cells...
January 2017: Journal of Dairy Science
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