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preadipocyte AND proliferation

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https://www.readbyqxmd.com/read/28437481/firemaster%C3%A2-550-and-its-components-isopropylated-triphenyl-phosphate-and-triphenyl-phosphate-enhance-adipogenesis-and-transcriptional-activity-of-peroxisome-proliferator-activated-receptor-ppar%C3%AE-on-the-adipocyte-protein-2-ap2-promoter
#1
Emily W Y Tung, Shaimaa Ahmed, Vian Peshdary, Ella Atlas
Firemaster® 550 (FM550) is a chemical mixture currently used as an additive flame retardant in commercial products, and is comprised of 2-ethylhexyl-2,3,4,5-tertrabromobenzoate (TBB), bis(2-ethylhexyl) tetrabromophthalate (TBPH), triphenyl phosphate (TPP), and isopropylated triphenyl phosphate (IPTP). Animal and in vitro studies suggest that FM550, TPP and IPTP may have adipogenic effects and may exert these effects through PPARγ activation. Using murine 3T3-L1 preadipocytes, we investigated the detailed expression of transcription factors and adipogenic markers in response to FM550 and its components...
2017: PloS One
https://www.readbyqxmd.com/read/28426713/metallothioneins-regulate-the-adipogenic-differentiation-of-3t3-l1-cells-via-the-insulin-signaling-pathway
#2
Yoshito Kadota, Yuriko Toriuchi, Yuka Aki, Yuto Mizuno, Takashige Kawakami, Tomoko Nakaya, Masao Sato, Shinya Suzuki
Knockout of metallothionein (MT) genes contributes to a heavier body weight in early life and the potential to become obese through the intake of a high fat diet (HFD) in mice. It has thus been suggested that MT genes regulate the formation of adipose tissue, which would become the base for later HFD-induced obesity. We evaluated the fat pads of mice during the lactation stage. The fat mass and adipocyte size of MT1 and MT2 knockout mice were greater than those of wild type mice. Next, we assayed the ability of small interfering RNA (siRNA) to silence MT genes in the 3T3-L1 cell line...
2017: PloS One
https://www.readbyqxmd.com/read/28420612/identification-and-analysis-of-zfpm2-as-a-target-gene-of-mir-17-92-cluster-in-chicken
#3
Zhang Xiaofei, Song He, Liu Jing, Zhang Wenjian, Yan Xiaohong, Li Hui, Wang Ning
The miR-17-92 cluster plays important roles in a variety of physiological and pathological processes in mammals. Previously, we showed that miR-17-92 cluster promotes chicken preadipocyte proliferation; however, the mechanism for its action is unknown. In order to explore the mechanism by which miR-17-92 cluster promotes chicken preadipocyte proliferation, CCK8 proliferation assay was performed to determine the effect of ZFPM2 knockdown on chicken preadipocyte proliferation. The results showed that ZFPM2 knockdown significantly promoted chicken preadipocyte proliferation (P<0...
April 20, 2017: Yi Chuan, Hereditas
https://www.readbyqxmd.com/read/28417922/indole-derivatives-isolated-from-brown-alga-sargassum-thunbergii-inhibit-adipogenesis-through-ampk-activation-in-3t3-l1-preadipocytes
#4
Min-Cheol Kang, Yuling Ding, Eun-A Kim, Youn Kyung Choi, Thiago de Araujo, Soo-Jin Heo, Seung-Hong Lee
Seaweed, a popular and abundant food ingredient mainly consumed in Asian countries, is a good source of bioactive compounds with anti-obesity effects. However, the anti-obesity effects of Sargassum thunbergii have not yet been established. In this study, we isolated six indole derivatives (STCs)-indole-2-carboxaldehyde (STC-1), indole-3-carboxaldehyde (STC-2), indole-4-carboxaldehyde (STC-3), indole-5-carboxaldehyde (STC-4), indole-6-carboxaldehyde (STC-5), and indole-7-carboxaldehyde (STC-6)-from S. thunbergii and evaluated their inhibitory effects on adipocyte differentiation in 3T3-L1 cells...
April 12, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28398659/hypaphorine-an-indole-alkaloid-isolated-from-caragana-korshinskii-kom-inhibites-3t3-l1-adipocyte-differentiation-and-improves-insulin-sensitivity-in-vitro
#5
Guangxiang Luan, Fangfang Tie, Zhenzhen Yuan, Gang Li, Jie He, Zhenhua Wang, Honglun Wang
Obesity, a major health problem worldwide, is a complex multifactorial chronic disease that increases the risk for insulin resistance, type 2 diabetes, coronary heart disease and hypertension. In this study, we assessed methods to isolate hypaphorine, a potent drug candidate for obesity and insulin resistance. Semi-preparative reversed-phase liquid chromatography (semi-preparative RPLC) was established as a method to separate three compounds, adenosine, L-tryptophan and hypaphorine, from the crude extracts of Caragana korshinskii Kom...
April 11, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28393240/do-in-seung-gi%C3%A2-tang-extract-suppresses-adipocyte-differentiation-in-3t3%C3%A2-l1-cells
#6
Eun Hyoung Shim, Myeong Soo Lee, Ju-Ah Lee, Hoyoung Lee
Blood stasis syndrome (BSS), additionally called Eohyul, is a basic pathological concept in Traditional Korean Medicine. Do In Seung Gi‑Tang (DISGT) is herbal medicine used for the treatment of BSS. It primarily treats metabolic diseases (MDs) including obesity, hypertension, diabetes mellitus and gynecological diseases, by promoting blood circulation. The present study aimed to investigate the anti‑adipogenesis effect of DISGT in 3T3‑L1 adipocytes using Oil Red O staining, and assessing levels of triglycerides (TGs) and leptin in adipocytes by ELISA and western blot analysis...
April 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28351837/cyclin-c-regulates-adipogenesis-by-stimulating-transcriptional-activity-of-ccaat-enhancer-binding-protein-alpha
#7
Ziyi Song, Alus M Xiaoli, Quanwei Zhang, Yi Zhang, Ellen S T Yang, Sven Wang, Rui Chang, Zhengdong D Zhang, Gongshe Yang, Randy Strich, Jeffrey E Pessin, Fajun Yang
Brown adipose tissue (BAT) is important for maintaining energy homeostasis and adaptive thermogenesis in rodents and humans. As disorders arising from dysregulated energy metabolism, such as obesity and metabolic diseases, have increased, so has interest in the molecular mechanisms in adipocyte biology. Using a functional screen, we identified cyclin C (CycC), a conserved subunit of the Mediator complex, as a novel regulator for brown adipocyte formation. siRNA-mediated CycC knockdown (KD) in brown preadipocytes impaired the early transcriptional program of differentiation, and genetic knockout (KO) of CycC completely blocked the differentiation process...
March 28, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28350136/all-trans-retinoic-acid-restored-the-osteogenic-ability-of-bmp9-in-osteosarcoma-through-the-p38-mapk-pathway
#8
Nian Wu, Ruidong Li, Zijun Meng, Mao Nie, Qianzhao Chen, Baicheng He, Zhongliang Deng, Liangjun Yin
Osteosarcoma (OS) is the most common malignant bone tumour and is considered to be a disease caused by a dysfunction in differentiation. Bone morphogenetic protein 9 (BMP9) is the most potent osteogenic factor in mesenchymal stem cells, but it cannot induce osteogenic differentiation in OS cells; this might be one of the determinants in the pathogenesis of OS. All-trans retinoic acid (ATRA) can induce osteogenic differentiation of OS cells and potentiate BMP9-induced osteogenesis in preadipocytes. However, the concomitant effect of ATRA and BMP9 in OS cells is unclear; therefore, in the present study, we focused on this topic...
March 13, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28339202/a-novel-acylated-flavonol-tetraglycoside-with-inhibitory-effect-on-lipid-accumulation-in-3t3-l1-cells-from-lu-an-guapian-tea-and-quantification-of-flavonoid-glycosides-in-six-major-processing-types-of-tea-running-title-a-novel-acylated-flavonol-tetraglycoside
#9
Wu-Xia Bai, Chao Wang, Yijun Wang, Wen-Jun Zheng, Wei Wang, Xiaochun Wan, Guan-Hu Bao
A novel acylated flavonol tetraglycoside, kaempferol 3-O-[(E)-p- coumaroyl-(1→2)][α-L-arabinopyranosyl-(1→3)][β-D-glucopyranosyl (1→3)-α-L- rhamnopyranosyl (1→6)]-β-D-glucopyranoside (camellikaempferoside C, 1), together with two flavonol and eighteen flavone and flavonol glycosides (FGs) (2-21) was isolated from the green tea Lu'an GuaPian (Camellia sinensis L.O. Kuntze). Their structures were identified by spectroscopic and chemical methods. Four acylated FGs (1, 7, 8, 9) were found to inhibit the proliferation and differentiation of 3T3-L1 preadipocytes at the concentrations 25, 50, 100 µM (P < 0...
March 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28334683/combined-metformin-and-insulin-treatment-reverses-metabolically-impaired-omental-adipogenesis-and-accumulation-of-4-hydroxynonenal-in-obese-diabetic-patients
#10
Morana Jaganjac, Shamma Almuraikhy, Fatima Al-Khelaifi, Mashael Al-Jaber, Moataz Bashah, Nayef A Mazloum, Kamelija Zarkovic, Neven Zarkovic, Georg Waeg, Wael Kafienah, Mohamed A Elrayess
OBJECTIVE: Obesity-associated impaired fat accumulation in the visceral adipose tissue can lead to ectopic fat deposition and increased risk of insulin resistance and type 2 diabetes mellitus (T2DM). This study investigated whether impaired adipogenesis of omental (OM) adipose tissues and elevated 4-hydroxynonenal (4-HNE) accumulation contribute to this process, and if combined metformin and insulin treatment in T2DM patients could rescue this phenotype. METHODS: OM adipose tissues were obtained from forty clinically well characterized obese individuals during weight reduction surgery...
March 16, 2017: Redox Biology
https://www.readbyqxmd.com/read/28332893/monascus-ruber-fermented-buckwheat-red-yeast-buckwheat-suppresses-adipogenesis-in-3t3-l1-cells
#11
Heeok Hong, Jiyoung Park, Wenchie L Lumbera, Seong Gu Hwang
Although various treatments have been used for weight loss to date, obese people rarely have safe and effective treatment options. Therefore, the antiobesity effects of several natural compounds are being actively investigated. This study was conducted to investigate the antiadipogenic effects of Monascus ruber-fermented Fagopyrum esculentum (red yeast buckwheat, RYB) in 3T3-L1 cells. We assessed the intracellular lipid content and adipocyte differentiation by oil red O staining and the expression of genes and proteins associated with adipocyte differentiation by reverse transcription-polymerase chain reaction and western blotting in 3T3-L1 cells...
April 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28326537/gax-suppresses-chemerin-cmklr1-induced-preadipocyte-biofunctions-through-the-inhibition-of-akt-mtor-and-erk-signaling-pathways
#12
Yunqi Jiang, Ping Liu, Wenlin Jiao, Juan Meng, Jinbo Feng
Adipose tissue is closely associated with angiogenesis and vascular remodeling. Chemerin is involved in inflammatory reaction and vascular dysfunction. However, the mechanisms of chemerin participating in vascular remodeling and whether Growth arrest-specific homeobox (Gax) can effectively intervene it remain obscured. Here, 3T3-F442A preadipocytes were cultured, injected into athymic mice to model fat pads, and treated respectively with Ad-chemerin, Ad-Gax, or specific inhibitors in vitro and in vivo. MTT, flow cytometry, Western blotting, and imunohisto(cyto)-chemistry analyses showed that chemerin enhanced the expression of FABP4 and VEGF, activated Akt/mTOR and ERK pathways, increased the cell percent of S phase, decreased the percent of G0-G1 phase and apoptotic cells, and augmented neovascular density in fat pads...
March 21, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28296593/protocatechuic-acid-enhances-osteogenesis-but-inhibits-adipogenesis-in-c3h10t1-2-and-3t3-l1-cells
#13
Adriana Rivera-Piza, Young Jae An, Do Kyung Kim, Sung-Hyen Lee, Jung-Bong Kim, Jung-Sook Choi, Sung-Joon Lee
Abnormal activation of adipogenesis in mesenchymal stem cells (MSCs) and preadipocyte cells is associated with human metabolic disorders, such as osteoporosis and obesity. This study investigated the biological effects of protocatechuic acid (PCA) on the modulation of osteogenesis and adipogenesis in cultured cells. PCA stimulation of MSCs significantly increased intracellular mineralization during osteogenesis, but reduced lipid accumulation in both MSCs and 3T3-L1 preadipocyte cells during adipogenesis. Reverse transcription-polymerase chain reaction and immunoblotting analyses showed a dose-dependent upregulation of proosteogenic runt-related transcription factor 2 due to induction of β-catenin...
March 2017: Journal of Medicinal Food
https://www.readbyqxmd.com/read/28279068/%C3%AE-catenin-mediates-anti-adipogenic-and-anticancer-effects-of-arctigenin-in-preadipocytes-and-breast-cancer-cells
#14
Jihye Lee, Jee-Young Imm, Seong-Ho Lee
Arctigenin is a lignan abundant in Asteraceae plants and has anti-inflammatory, antiobesity, and anticancer activities. Obesity is one of the leading causes of several types of cancers including breast cancer. The current study was performed to investigate if arctigenin suppresses differentiation of preadipocytes and proliferation of breast cancer cells and to explore potential molecular mechanisms. Treatment of arctigenin reduced lipid accumulation in differentiated 3T3-L1 adipocytes in a dose- and time-dependent manner without toxicity...
March 15, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28273655/new-agents-that-target-senescent-cells-the-flavone-fisetin-and-the-bcl-xl-inhibitors-a1331852-and-a1155463
#15
Yi Zhu, Ewald J Doornebal, Tamar Pirtskhalava, Nino Giorgadze, Mark Wentworth, Heike Fuhrmann-Stroissnigg, Laura J Niedernhofer, Paul D Robbins, Tamara Tchkonia, James L Kirkland
Senescent cells accumulate with aging and at sites of pathology in multiple chronic diseases. Senolytics are drugs that selectively promote apoptosis of senescent cells by temporarily disabling the pro-survival pathways that enable senescent cells to resist the pro-apoptotic, pro-inflammatory factors that they themselves secrete. Reducing senescent cell burden by genetic approaches or by administering senolytics delays or alleviates multiple age- and disease-related adverse phenotypes in preclinical models...
March 8, 2017: Aging
https://www.readbyqxmd.com/read/28267420/fto-promotes-adipogenesis-through-inhibition-of-the-wnt-%C3%AE-catenin-signaling-pathway-in-porcine-intramuscular-preadipocytes
#16
Xiaoling Chen, Yanliu Luo, Gang Jia, Guangmang Liu, Hua Zhao, Zhiqing Huang
Numerous studies have demonstrated that FTO plays an important role in adipogenesis. Herein, we designed a small interfering RNA targeting FTO to knock down its endogenous expression and investigated its effects on the proliferation and differentiation of porcine intramuscular preadipocytes. Its possible mechanism was also investigated. We showed that FTO silencing significantly decreased the level of phospho-Histone H3 protein and inhibited the proliferation of porcine intramuscular preadipocytes. In addition, the expressions of peroxisome proliferators-activated receptor γ (PPARγ) and CAAT/enhancer binding protein (C/EBPα) were down-regulated, but the expression of β-catenin was up-regulated, by FTO silencing...
March 7, 2017: Animal Biotechnology
https://www.readbyqxmd.com/read/28242381/antidiabetic-effect-of-sn158-through-ppar%C3%AE-%C3%AE-dual-activation-in-ob-ob-mice
#17
Yujung Jung, Yongkai Cao, Suresh Paudel, Goo Yoon, Seung Hoon Cheon, Gyu-Un Bae, Li Tai Jin, Yong Kee Kim, Su-Nam Kim
In this study, we aimed to demonstrate the antidiabetic potential of (E)-N-(4-(3-(5-bromo-4-hydroxy-2-methoxyphenyl)acryloyl) phenyl)-4-tert-butylbenzamide (SN158) through peroxisome proliferator-activated receptor (PPAR)-α/γ dual activation. SN158 interacted with both PPARα and PPARγ, and increased their transcriptional activities. Simultaneously, SN158 treatment led to an increase in adipogenic differentiation of 3T3-L1 preadipocytes and fatty acid oxidation in hepatocytes. In addition, glucose uptake in myotubes was significantly increased by SN158 treatment...
April 25, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28239754/neprilysin-facilitates-adipogenesis-through-potentiation-of-the-phosphatidylinositol-3-kinase-pi3k-signaling-pathway
#18
Juwan Kim, Dasol Han, Sung-Hyun Byun, Mookwang Kwon, Sun-Jung Cho, Young Ho Koh, Keejung Yoon
Neprilysin (NEP) is a zinc metallopeptidase that cleaves a number of small peptides into inactive forms. Despite the recent evidence of a significant correlation between the levels of NEP in plasma and the severity of obesity in humans, a cause-and-effect relationship or a functional role of NEP in obesity has remained uncertain. In this study, we show that NEP has a positive regulatory effect on fat cell formation from precursor cells. NEP increases the accumulation of cytoplasmic triglycerides in 3T3-L1 preadipocytes or the C3H10T1/2 mesenchymal stem cell line in differentiation conditions...
February 27, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28219719/cysteine-deprivation-prevents-induction-of-peroxisome-proliferator-activated-receptor-gamma-2-and-adipose-differentiation-of-3t3-l1-cells
#19
Nadia Nabil Haj-Yasein, Ole Berg, Fredrik Jernerén, Helga Refsum, Hilde I Nebb, Knut Tomas Dalen
Plasma cysteine is strongly associated with body fat mass in human cohorts and diets low in cysteine prevents fat accumulation in mice. It is unclear if plasma cysteine affects fat development or if fat accumulation raises plasma cysteine. To determine if cysteine affects adipogenesis, we differentiated 3T3-L1 preadipocytes in medium with reduced cysteine. Cells incubated in media with 10-20μM cysteine exhibited reduced capacity to differentiate into triacylglycerol-storing mature adipocytes compared with cells incubated with 50μM cysteine...
February 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28209522/the-role-of-alkaline-phosphatase-in-intracellular-lipid-accumulation-in-the-human-hepatocarcinoma-cell-line-hepg2
#20
George M Chirambo, Chantal van Niekerk, Nigel J Crowther
Inhibition of tissue non-specific alkaline phosphatase (TNALP) decreases intracellular lipid accumulation in human preadipocytes and the murine preadipocyte cell line, 3T3-L1. Therefore, the current study was performed to determine if TNALP is required for intracellular lipid deposition in the human hepatocyte cell line, HepG2. Intracellular lipid accumulation, TNALP activity and peroxisome proliferator activated receptor (PPAR) γ gene expression were measured in HepG2 and 3T3-L1 cells in the presence and absence of the TNALP inhibitors levamisole and histidine...
February 13, 2017: Experimental and Molecular Pathology
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