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https://www.readbyqxmd.com/read/28818460/the-design-and-synthesis-of-a-novel-compound-of-berberine-and-baicalein-that-inhibits-the-efficacy-of-lipid-accumulation-in-3t3-l1-adipocytes
#1
Mengjiao Hao, Zhuoji Guan, Yan Li, Lixian Liu, Xiao Yuan, Ying Gao, Weimin Li
The combination of berberine and baicalein may have a better therapeutic effect against disease. To explore the combined effect of baicalein and berberine in the treatment of obesity, we designed and synthesized a hybrid compound, and its biological activities were evaluated in 3T3-L1 adipocytes. The structures of the berberine-baicalein (BBS) compounds were confirmed by (1)H NMR, (13)C NMR, ultraviolet spectroscopy and high resolution mass spectrometry (HRMS). The present study showed that the IC50 values of the inhibitory effects of baicalein, berberine and BBS against 3T3-L1 cells were 29...
August 9, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28808402/role-of-adiantum-philippense-l-on-glucose-uptake-in-isolated-pancreatic-cells-and-inhibition-of-adipocyte-differentiation-in-3t3-l1-cell-line
#2
Tania Paul, Kishori G Apte, Pradeep B Parab, Biswadeep Das
BACKGROUND: Adiantum philippense (AP) is a pteridophyte that shows antihyperglycemic activity in vivo diabetic model, but the mechanism of action is unknown. OBJECTIVE: AP was found to play a pivotal role in minimizing the high blood glucose in alloxan-induced diabetic rats. Simultaneously, it was observed that it could maintain the normal lipid profile even in diabetic condition. To investigate its insulin-like activity along with its inhibitory role on adipocyte differentiation became the objective of our present study...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28807877/cryptotanshinone-promotes-commitment-to-the-brown-adipocyte-lineage-and-mitochondrial-biogenesis-in-c3h10t1-2-mesenchymal-stem-cells-via-ampk-and-p38-mapk-signaling
#3
Khan Mohammad Imran, Naimur Rahman, Dahyeon Yoon, Miso Jeon, Byong-Taek Lee, Yong-Sik Kim
Although white adipose tissue (WAT) stores triglycerides and contributes to obesity, brown adipose tissue (BAT) dissipates energy as heat. Therefore, browning of WAT is regarded as an attractive way to counteract obesity. Our previous studies have revealed that treatment with cryptotanshinone (CT) during adipogenesis of 3T3-L1 cells inhibits their differentiation. Here, we found that pretreatment of C3H10T1/2 mesenchymal stem cells with CT before exposure to adipogenic hormonal stimuli promotes the commitment of these mesenchymal stem cells to the adipocyte lineage as confirmed by increased triglyceride accumulation...
August 11, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28768190/bmp4-gene-therapy-in-mature-mice-reduces-bat-activation-but-protects-from-obesity-by-browning-subcutaneous-adipose-tissue
#4
Jenny M Hoffmann, John R Grünberg, Christopher Church, Ivet Elias, Vilborg Palsdottir, John-Olov Jansson, Fatima Bosch, Ann Hammarstedt, Shahram Hedjazifar, Ulf Smith
We examined the effect of Bone Morphogenetic Protein 4 (BMP4) on energy expenditure in adult mature mice by targeting the liver with adeno-associated viral (AAV) BMP4 vectors to increase circulating levels. We verified the direct effect of BMP4 in inducing a brown oxidative phenotype in differentiating preadipocytes in vitro. AAV-BMP4-treated mice display marked browning of subcutaneous adipocytes, with increased mitochondria and Uncoupling Protein 1 (UCP1). These mice are protected from obesity on a high-fat diet and have increased whole-body energy expenditure, improved insulin sensitivity, reduced liver fat, and reduced adipose tissue inflammation...
August 1, 2017: Cell Reports
https://www.readbyqxmd.com/read/28747725/echinomycin-inhibits-adipogenesis-in-3t3-l1-cells-in-a-hif-independent-manner
#5
Junna Yamaguchi, Tetsuhiro Tanaka, Hisako Saito, Seitaro Nomura, Hiroyuki Aburatani, Hironori Waki, Takashi Kadowaki, Masaomi Nangaku
Obesity is a risk factor for many diseases including diabetes, cancer, cardiovascular disease, and chronic kidney disease. Obesity is characterized by the expansion of white adipose tissue (WAT). Hypertrophy and hyperplasia of adipocytes cause tissue hypoxia followed by inflammation and fibrosis. Its trigger, preadipocyte differentiation into mature adipocytes, is finely regulated by transcription factors, signal molecules, and cofactors. We found that echinomycin, a potent HIF-1 inhibitor, completely inhibited adipogenesis in 3T3-L1 WAT preadipocytes by affecting the early phase of mitotic clonal expansion...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28732574/albiflorin-ameliorates-obesity-by-inducing-thermogenic-genes-via-ampk-and-pi3k-akt-in-vivo-and-in-vitro
#6
Mi-Young Jeong, Jinbong Park, Dong-Hyun Youn, Yunu Jung, JongWook Kang, Seona Lim, Min-Woo Kang, Hye-Lin Kim, Hong-Seob So, Raekil Park, Seung-Heon Hong, Jae-Young Um
OBJECTIVE: Brown adipose tissue (BAT) activation has been identified as a possible target to treat obesity and to protect against metabolic diseases by increasing energy consumption. We explored whether albiflorin (AF), a natural compound, could contribute to lowering the high risk of obesity with BAT and primary brown preadipocytes in vivo and in vitro. MATERIALS/METHODS: Human adipose tissue-derived mesenchymal stem cells (hAMSCs) were cultured with adipogenic differentiation media with or without AF...
August 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28726642/coordinated-transcriptional-control-of-adipocyte-triglyceride-lipase-atgl-by-transcription-factors-sp1-and-ppar%C3%AE-during-adipocyte-differentiation
#7
Debasish Roy, Kenneth T Farabaugh, Jing Wu, Alyssa Charrier, Cynthia Smas, Maria Hatzoglou, Kavitha Thirumurugan, David A Buchner
The breakdown of stored fat deposits into its components is a highly regulated process that maintains plasma levels of free fatty acids to supply energy to cells. Insulin-mediated transcription of Atgl, the enzyme that mediates the rate-limiting step in lipolysis, is a key point of this regulation. In conditions such as obesity or insulin resistance, Atgl transcription is often misregulated, which can contribute to overall disease progression. The mechanisms by which Atgl is induced during adipogenesis are not fully understood...
July 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28720906/trail-tnf-related-apoptosis-inducing-ligand-induces-an-inflammatory-response-in-human-adipocytes
#8
Verena Zoller, Jan-Bernd Funcke, Julian Roos, Meike Dahlhaus, Muad Abd El Hay, Karlheinz Holzmann, Ralf Marienfeld, Thomas Kietzmann, Klaus-Michael Debatin, Martin Wabitsch, Pamela Fischer-Posovszky
High serum concentrations of TNF-related apoptosis-inducing ligand (TRAIL), a member of the tumor necrosis factor protein family, are found in patients with increased BMI and serum lipid levels. In a model of murine obesity, both the expression of TRAIL and its receptor (TRAIL-R) is elevated in adipose tissue. Accordingly, TRAIL has been proposed as an important mediator of adipose tissue inflammation and obesity-associated diseases. The aim of this study was to investigate if TRAIL regulates inflammatory processes at the level of the adipocyte...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716822/dock2-deficiency-mitigates-high-fat-diet-induced-obesity-by-reducing-adipose-tissue-inflammation-and-increasing-energy-expenditure
#9
Xia Guo, Feifei Li, Zaiyan Xu, Amelia Yin, Hang Yin, Chenxiao Li, Shi-You Chen
Obesity is the major risk factor for type 2 diabetes, cardiovascular disorders, and many other diseases. Adipose tissue inflammation is frequently associated with obesity and contributes to the morbidity and mortality. Dedicator of cytokinesis 2 (DOCK2) is involved in several inflammatory diseases, but its role in obesity remain unknown. To explore the function of DOCK2 in obesity and insulin resistance, wild-type (WT) and DOCK2 deficient (DOCK2-/-) mice were given chow or high-fat diet (HFD) for 12 weeks followed by metabolic, biochemical and histologic analyses...
July 17, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28715395/expansion-and-adipogenesis-induction-of-adipocyte-progenitors-from-perivascular-adipose-tissue-isolated-by-magnetic-activated-cell-sorting
#10
Kyan Thelen, Nadia Ayala-Lopez, Stephanie W Watts, G Andres Contreras
Expansion of Perivascular Adipose Tissue (PVAT), a major regulator of vascular function through paracrine signaling, is directly related to the development of hypertension during obesity. The extent of hypertrophy and hyperplasia depends on depot location, sex, and the type of Adipocyte Progenitor Cell (APC) phenotypes present. Techniques used for APC and preadipocytes isolation in the last 10 years have drastically improved the accuracy at which individual cells can be identified based on specific cell surface markers...
June 30, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28712872/suppression-of-cd36-attenuates-adipogenesis-with-a-reduction-of-p2x7-expression-in-3t3-l1-cells
#11
Huanqing Gao, Danyang Li, Ping Yang, Lei Zhao, Li Wei, Yaxi Chen, Xiong Z Ruan
Adipogenesis is a process of differentiation from preadipocyte into adipocyte, and is regulated by several transcription factors, including the peroxisome proliferator-activated receptor gamma (PPARγ) and the CCAAT-enhancer-binding protein alpha (C/EBPα). CD36 is a membrane protein which contributes to the metabolic disorders such as obesity. Although the previous study demonstrated CD36 participated in the progression of adipogenesis, the mechanism is still unclear. We report here that knockdown of CD36 expression by CD36 small interfering RNA (siRNA) resulted in a reduction of adipocyte differentiation and adipogenic protein expression...
July 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28700271/lsd1-a-metabolic-sensor-of-environment-requirements-that-prevents-adipose-tissue-from-aging
#12
Delphine Duteil, Milica Tosic, Roland Schüle
Understanding development and maintenance of beige adipocytes provide exciting insights in establishing novel therapies against obesity and obesity-associated disorders. Lysine-specific demethylase 1 (Lsd1) is an epigenetic eraser required for differentiation and function of adipocytes. Lsd1 is involved in early commitment of preadipocytes, but dispensable for terminal differentiation of white adipose tissue (WAT). In mature adipocytes, Lsd1 responds to different environmental stimuli to alter metabolic function and enable proper thermogenic and oxidative response...
June 26, 2017: Adipocyte
https://www.readbyqxmd.com/read/28699343/characterization-of-adipogenic-activity-of-house-dust-extracts-and-semi-volatile-indoor-contaminants-in-3t3-l1-cells
#13
Christopher D Kassotis, Kate Hoffman, Heather M Stapleton
Obesity and metabolic disorders are of great societal concern and generate significant human health care costs. Recently, attention has focused on the potential for environmental contaminants to act as metabolic disruptors. This study sought to evaluate the adipogenic activity of indoor house dust extracts and a suite of semivolatile organic chemicals (SVOCs) that are often ubiquitously detected in indoor environments. 3T3-L1 cells were exposed to extracts of indoor dust or individual SVOCs and assessed for triglyceride accumulation and preadipocyte proliferation...
July 12, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28690544/lotus-leaf-aqueous-extract-reduces-visceral-fat-mass-and-ameliorates-insulin-resistance-in-hfd-induced-obese-rats-by-regulating-ppar%C3%AE-2-expression
#14
Kemin Yan, Huijuan Zhu, Jian Xu, Hui Pan, Naishi Li, Linjie Wang, Hongbo Yang, Meijuan Liu, FengYing Gong
Objectives: Lotus leaf is a kind of traditional Chinese medicine. We aimed to explore the effects of lotus leaf aqueous extract (LLAE) on peroxisome proliferative activated receptor γ2 (PPARγ2) expression in preadipocytes and adipocytes and further investigate its effects on high fat diet (HFD)-induced obese rats. Methods: pGL3-Enhancer-PPARγ2 (625 bp)-Luc plasmid, a luciferase reporter gene expression plasmid containing PPARγ2 promoter, was stably transfected into 3T3-L1 preadipocytes. PPARγ2 promoter activities were determined by assaying the luciferase activities...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28673084/transcriptome-landscape-of-porcine-intramuscular-adipocytes-during-differentiation
#15
Delin Mo, Kaifan Yu, Hu Chen, Luxi Chen, Xiaohong Liu, Zuyong He, Peiqing Cong, Yaosheng Chen
The adipocyte differentiation process, controlled by a tightly regulated transcriptional cascade, contributes partly to determine intramuscular adipose tissue (IMAT) mass, which is associated with meat quality in food animals, as well as obesity and related metabolic complications in human. Thus, this study aimed to characterize genes critical for intramuscular preadipocyte differentiation. Primary intramuscular preadipocytes were isolated from pigs, and mRNA profiles were performed at several key points (0 h, 4 h, 8 h, 1 day, 2 days, and 6 days) during adipogenesis using microarrays...
August 2, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28671595/anti-obesity-effect-of-the-above-ground-part-of-valeriana-dageletiana-nakai-ex-f-maek-extract-in-high-fat-diet-induced-obese-c57bl-6n-mice
#16
Zhiqiang Wang, Seung Hwan Hwang, Ju Hee Kim, Soon Sung Lim
Valeriana dageletiana Nakai ex F. Maek (VD) has been used as traditional medicine for the treatment of restlessness and sleeping disorders. However, it is still unclear whether obesity in mice can be altered by diet supplementation with VD. In this study, we first investigated the influences of VD on the accumulation of lipid content in 3T3-L1 cells; and the results showed that the above-ground VD extracts (VDAE) suppressed the differentiation of 3T3-L1 preadipocytes in a concentration-dependent manner without cytotoxicity...
July 2, 2017: Nutrients
https://www.readbyqxmd.com/read/28659738/rosmarinic-acid-suppresses-adipogenesis-lipolysis-in-3t3-l1-adipocytes-lipopolysaccharide-stimulated-tumor-necrosis-factor-%C3%AE-secretion-in-macrophages-and-inflammatory-mediators-in-3t3-l1-adipocytes
#17
Yehua Rui, Lingxia Tong, Jinbo Cheng, Guiping Wang, Liqiang Qin, Zhongxiao Wan
Background: Rosmarinic acid (RA) is a natural phenol carboxylic acid with many promising biological effects. It may be a suitable candidate for improving obesity-related adipose tissue dysfunction. Objective: We aimed to investigate the therapeutic use of RA as an anti-obesity agent by measuring its effects on adipogenesis, lipolysis, and messenger RNA (mRNA) expression of major adipokines in 3T3-L1 adipocytes; and its effects on lipopolysaccharide (LPS)-induced tumor necrosis factor-α (TNF-α) secretion in macrophages and inflammatory mediators in 3T3-L1 adipocytes incubated with macrophage-conditioned medium (MCM)...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28649807/microrna-196-regulates-hox-gene-expression-in-human-gluteal-adipose-tissue
#18
Adeline Divoux, Hui Xie, Jian-Liang Li, Kalypso Karastergiou, Ranjan J Perera, R Jeffrey Chang, Susan K Fried, Steven R Smith
OBJECTIVE: Lower body fat is associated with diminishing cardiometabolic risk. Physiological differences between gluteofemoral and abdominal subcutaneous adipocyte functions are known, but the molecular basis for depot differences in adipocyte function is poorly understood. The objective of this study was to identify depot differences in microRNA (miRNA) expression in human abdominal and gluteofemoral subcutaneous adipose tissues and their implication in gene regulation. METHODS: Abdominal and gluteofemoral adipose tissue aspirates obtained from 18 participants (9 male and 9 female, age 30 ± 1...
August 2017: Obesity
https://www.readbyqxmd.com/read/28646706/corn-silk-maysin-ameliorates-obesity-in-vitro-and-in-vivo-via-suppression-of-lipogenesis-differentiation-and-function-of-adipocytes
#19
Chang Won Lee, Jeong Yeon Seo, Sun-Lim Kim, Jisun Lee, Ji Won Choi, Yong Il Park
Present study was aimed to investigate the potential anti-obesity effects of maysin, a major flavonoid of corn silk, in vitro and in vivo using 3T3-L1 preadipocyte cells and C57BL/6 mice. Maysin decreased the levels of intracellular lipid droplets and triglycerides (TG), and down-regulated the protein expression levels of C/EBP-β, C/EBP-α, PPAR-γ, and aP2 in 3T3-L1 preadipocyte cells, suggesting that maysin inhibits lipid accumulation and adipocyte differentiation. In addition, maysin was shown to induce the apoptotic cell death in 3T3-L1 preadipocyte cells via activation of caspase cascades and mitochondrial dysfunction, which may ultimately lead to reduction of adipose tissue mass...
September 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28627722/pterostilbene-inhibits-lipogenic-activity-similar-to-resveratrol-or-caffeine-but-differently-modulates-lipolysis-in-adipocytes
#20
Saioa Gomez-Zorita, Chloé Belles, Anaïs Briot, Alfredo Fernández-Quintela, Maria P Portillo, Christian Carpéné
The anti-obesity effects of resveratrol shown in rodents are not transposed into an efficient therapy of human obesity. Consequently, the search for molecules mimicking or surpassing resveratrol actions is ongoing. The natural phenolic compound pterostilbene exhibits beneficial health effects and has the capacity to limit fat mass in animal models. In this study, we tested whether pterostilbene modulates triacylglycerol accumulation/breakdown. Prolonged exposure to pterostilbene or resveratrol inhibited adipocyte differentiation in 3T3-F442A preadipocytes...
August 2017: Phytotherapy Research: PTR
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