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adipocyte differentiation

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https://www.readbyqxmd.com/read/28816006/cd38-deficiency-suppresses-adipogenesis-and-lipogenesis-in-adipose-tissues-through-activating-sirt1-ppar%C3%AE-signaling-pathway
#1
Ling-Fang Wang, Lian-Jie Miao, Xiao-Nv Wang, Cong-Cong Huang, Yi-Song Qian, Xuan Huang, Xiao-Lei Wang, Wan-Zhu Jin, Guang-Ju Ji, Mingui Fu, Ke-Yu Deng, Hong-Bo Xin
It has been recently reported that CD38 was highly expressed in adipose tissues from obese people and CD38-deficient mice were resistant to high-fat diet (HFD)-induced obesity. However, the role of CD38 in the regulation of adipogenesis and lipogenesis is unknown. In this study, to explore the roles of CD38 in adipogenesis and lipogenesis in vivo and in vitro, obesity models were generated with male CD38(-/-) and WT mice fed with HFD. The adipocyte differentiations were induced with MEFs from WT and CD38(-/-) mice, 3T3-L1 and C3H10T1/2 cells in vitro...
August 16, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28815517/autophagy-in-adipocyte-differentiation
#2
Zhipeng Tao, Longhua Liu, Louise D Zheng, Zhiyong Cheng
Adipose tissue regulates metabolic homeostasis by acting as an endocrine organ and energy reservoir. Adipose tissue development and functional maintenance are dependent on adipocyte differentiation, in which autophagy plays an important role. It has been shown that autophagy deficiency dampens adipocyte differentiation, compromises adipose tissue development, dysregulates adipocytokine secretion, and even causes sudden death in young animals. Therefore, accurate assessment of autophagy in adipocyte is critical for the study of adipose biology or pathology of metabolic diseases...
August 17, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28814640/agpat4-lpaat%C3%AE-deficiency-highlights-the-molecular-heterogeneity-of-epididymal-and-perirenal-white-adipose-depots
#3
Emily B Mardian, Ryan M Bradley, Juan J Aristizabal Henao, Phillip M Marvyn, Katherine A Moes, Eric Bombardier, A Russell Tupling, Ken D Stark, Robin E Duncan
Acylglycerophosphate acyltransferase 4 (AGPAT4)/lysophosphatidic acid acyltransferase delta (LPAATδ) catalyzes the formation of phosphatidic acid (PA), a precursor of triacylglycerol (TAG). We investigated the effect of Agpat4 gene ablation on white adipose tissue (WAT), after finding consistent expression across depots. Epididymal WAT mass was 40% larger in male Agpat4-/- mice than wildtype littermates, but unchanged in perirenal, retroperitoneal, and inguinal WAT and subscapular brown adipose tissue. Metabolic changes were identified in epididymal WAT that were not evident in perirenal WAT, which was analyzed for comparison...
August 16, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28814390/the-physiological-and-metabolic-differences-between-visceral-and-subcutaneous-adipose-tissues-in-nile-tilapia-oreochromis-niloticus
#4
Ya-Wen Wang, Ji-Lei Zhang, Jian-Gang Jiao, Xiao-Xia Du, Samwel Mchele Limbu, Fang Qiao, Mei-Ling Zhang, Dong-Liang Li, Zhen-Yu Du
BACKGROUND: Visceral adipose tissue (VAT) and subcutaneous adipose tissue (SCAT) have different structures and metabolic functions, and play different roles in the regulation of mammal systemic endocrine. However, little is known about morphology and physiological and metabolic functions between VAT and SCAT in fish. METHODS: We compared the morphological, physiological and biochemical characteristics of VAT and SCAT in Nile Tilapia and measured their functions in energy intake flux, lipolytic ability, and gene expression patterns...
August 16, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28813021/enhanced-cell-growth-of-adipocyte-derived-mesenchymal-stem-cells-using-chemically-defined-serum-free-media
#5
Myung-Suk Lee, Christine Youn, Jeong Hyun Kim, Byoung Jun Park, Jongchan Ahn, Sungyoul Hong, Young-Deug Kim, Young Kee Shin, Sang Gyu Park
The multipotency and anti-inflammatory effects of mesenchymal stem cells (MSCs) make them attractive for cell therapy in regenerative medicine. A large number of MSCs is required for efficient therapy owing to the low homing efficiency of MSCs to target sites. Furthermore, owing to limitations in obtaining sufficient amounts of MSCs, in vitro expansion of MSCs that preserves their differentiation and proliferative potential is essential. The animal factor included in culture media also limits clinical application...
August 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28812581/nfia-co-localizes-with-ppar%C3%AE-and-transcriptionally-controls-the-brown-fat-gene-program
#6
Yuta Hiraike, Hironori Waki, Jing Yu, Masahiro Nakamura, Kana Miyake, Gaku Nagano, Ryo Nakaki, Ken Suzuki, Hirofumi Kobayashi, Shogo Yamamoto, Wei Sun, Tomohisa Aoyama, Yusuke Hirota, Haruya Ohno, Kenji Oki, Masayasu Yoneda, Andrew P White, Yu-Hua Tseng, Aaron M Cypess, Therese J Larsen, Naja Z Jespersen, Camilla Scheele, Shuichi Tsutsumi, Hiroyuki Aburatani, Toshimasa Yamauchi, Takashi Kadowaki
Brown fat dissipates energy as heat and protects against obesity. Here, we identified nuclear factor I-A (NFIA) as a transcriptional regulator of brown fat by a genome-wide open chromatin analysis of murine brown and white fat followed by motif analysis of brown-fat-specific open chromatin regions. NFIA and the master transcriptional regulator of adipogenesis, PPARγ, co-localize at the brown-fat-specific enhancers. Moreover, the binding of NFIA precedes and facilitates the binding of PPARγ, leading to increased chromatin accessibility and active transcription...
August 14, 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28812211/the-immune-system-in-obesity-developing-paradigms-amidst-inconvenient-truths
#7
REVIEW
Madhur Agrawal, Philip A Kern, Barbara S Nikolajczyk
PURPOSE OF REVIEW: Adipose tissue (AT) houses both innate and adaptive immune systems that are crucial for preserving AT function and metabolic homeostasis. In this review, we summarize recent information regarding progression of obesity-associated AT inflammation and insulin resistance. We additionally consider alterations in AT distribution and the immune system in males vs. females and among different racial populations. RECENT FINDINGS: Innate and adaptive immune cell-derived inflammation drives insulin resistance both locally and systemically...
August 15, 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28811612/coenzyme-q10-improves-lipid-metabolism-and-ameliorates-obesity-by-regulating-camkii-mediated-pde4-inhibition
#8
Zhe Xu, Jia Huo, Xin Ding, Mu Yang, Lin Li, Jian Dai, Kazunori Hosoe, Hiroshi Kubo, Masayuki Mori, Keiichi Higuchi, Jinko Sawashita
Our recent studies revealed that supplementation with the reduced form of coenzyme Q10 (CoQ10H2) inhibits oxidative stress and slows the process of aging in senescence-accelerated mice. CoQ10H2 inhibits adipocyte differentiation and regulates lipid metabolism. In the present study, we show that dietary supplementation with CoQ10H2 significantly reduced white adipose tissue content and improved the function of brown adipose tissue by regulating expression of lipid metabolism-related factors in KKAy mice, a model of obesity and type 2 diabetes...
August 15, 2017: Scientific Reports
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
#9
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/28808264/knockdown-of-lncrna-mir31hg-inhibits-adipocyte-differentiation-of-human-adipose-derived-stem-cells-via-histone-modification-of-fabp4
#10
Yiping Huang, Chanyuan Jin, Yunfei Zheng, Xiaobei Li, Shan Zhang, Yixin Zhang, Lingfei Jia, Weiran Li
Adipogenesis plays an important role in the regulation of whole-body energy homeostasis and is inextricably related to obesity. Several studies have highlighted the relevance of microRNAs in adipocyte differentiation, but the contributions of long non-coding RNAs (lncRNAs) are still largely uncharacterized. Here, we determined that lncRNA MIR31HG is related to adipocyte lineage commitment. We demonstrated that knockdown of MIR31HG inhibited adipocyte differentiation, whereas overexpression of MIR31HG promoted adipogenesis in vitro and in vivo...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808139/differential-expression-of-sirtuin-2-and-adipocyte-maturation-restriction-an-adaptation-process-during-hypoxia-in-fish
#11
Ekambaram Padmini, Parasuraman Parimala
Sirtuins have received wide spread attention due to their diverse physiological role in metabolism. Among sirtuins, SIRT2 is more abundant in adipocytes; exerts effect on adipocyte differentiation, a process involves conversion of preadipocytes to mature adipocytes orchestrated by adipokines and adipogenic transcription factors. Grey mullets (Scientific name: Mugil cephalus) were chosen as study organism due to its excellent serve as a biomonitor. Adipocytes isolated from natural field condition were termed as field hypoxic (Ennore) and normoxic (Kovalam) based on DO level in the estuary...
August 14, 2017: Biology Open
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
#12
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/28805906/technical-note-induction-of-pluripotent-stem-cell-like-cells-from-chicken-feather-follicle-cells
#13
Y M Kim, Y H Park, J M Lim, H Jung, J Y Han
Pluripotent stem cells including embryonic stem cells (ESC) and induced pluripotent stem cells (iPSC) are regarded as representative tools for conservation of animal genetic resources. Although ESC have been established from chicken, it is very difficult to obtain enough embryos for isolation of stem cells for avian conservation in most wild birds. Therefore, the high feasibility of obtaining the pluripotent cell is most important in avian conservation studies. In this study, we generated induced pluripotent stem cell-like cells (iPSLC) from avian Feather Follicular cells (FFC)...
August 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28805446/epigallocatechin-gallate-as-an-anti-obesity-therapeutic-compound-an-in-silico-approach-for-structure-based-drug-designing
#14
Muhammad Shahid Javaid, Noreen Latief, Bushra Ijaz, Usman Ali Ashfaq
Epigallocatechin gallate is a polyphenol of tea plants. Other than tea its trace amounts are found in apple skin, onions and plums. It has anti-adipogenic and anti-oxidant potential. It was investigated that epigallocatechin gallate stopped the adipogenic differentiation of mice mesenchymal stem cells but its underlying mechanism is not well understood. Different proteins and transcription factors responsible for differentiation of adipocytes could be its targets. This study was designed to determine the potential target of epigallocatechin gallate in human...
August 14, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28805275/participation-of-extracellular-signal-regulated-kinases-1-2-in-osteoblast-and-adipocyte-differentiation-of-mesenchymal-stem-cells-grown-on-titanium-surfaces
#15
Heitor F Silva, Rodrigo P F Abuna, Helena B Lopes, Marcelo S Francischini, Paulo T de Oliveira, Adalberto L Rosa, Marcio M Beloti
Osteoblasts and adipocytes coexist in the implantation site and affect the process of titanium (Ti) osseointegration. As extracellular signal-regulated kinases 1/2 (ERK1/2) are involved in osteogenesis and adipogenesis, the aim of our study was to investigate if the effects of Ti surface topography on osteoblast and adipocyte differentiation are modulated by ERK1/2. The experiments were conducted based on the effect of the ERK1/2 inhibitor, PD98059, on mesenchymal stem cells (MSCs) grown under osteogenic and adipogenic conditions on Ti with nanotopography (Ti-Nano) or on machined Ti (Ti-Machined)...
August 14, 2017: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/28805158/pp2a-regulatory-subunit-b55%C3%AE-is-a-gatekeeper-of-osteoblast-maturation-and-lineage-maintenance
#16
Anastassia Serguienko, Robert Hanes, Iwona Grad, Meng-Yu Wang, Ola Myklebost, Else Munthe
Bone marrow mesenchymal stem cells (BM MSCs) mediate skeletal remodeling by differentiating into osteoblasts. However, this remodeling is impaired with aging as well as following long-term glucocorticoid treatment, resulting in osteoporosis. Here we report a novel factor of osteoblast differentiation - PP2A regulatory subunit B55γ. We show that B55γ is induced by glucocorticoid receptor (GR) in human primary BM MSCs during differentiation to osteoblast, but not to adipocytes, and is required for osteoblast morphogenesis and mineralization...
August 12, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28803985/mir-199a-3p-affects-adipocytes-differentiation-and-fatty-acid-composition-through-targeting-scd
#17
Zhendong Tan, Jingjing Du, Linyuan Shen, Chendong Liu, Jideng Ma, Lin Bai, Yanzhi Jiang, Guoqing Tang, Mingzhou Li, Xuewei Li, Shunhua Zhang, Li Zhu
Body fat mass is closely associated to diseases related to obesity. MicroRNAs (miRNAs, miR) are important regulatory molecules that function as post-transcriptional gene regulators of adipocyte development. In the current study, we revealed that reduced expression of miR-199a-3p in adipose tissue resulting from high fat diet (HFD)-induced obesity in mice. Overexpression of miR-199a-3p promoted adipocyte proliferation by regulating the expression of regulating factors of the cell cycle. Furthermore, miR-199a-3p blunted lipid accumulation in 3T3-L1 adipocytes...
August 10, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28802015/identification-and-characterization-of-metformin-on-peptidomic-profiling-in-human-visceral-adipocytes
#18
Yao Gao, XingYun Wang, FangYan Huang, XianWei Cui, Yun Li, Xing Wang, Yan Cao, PengFei Xu, KaiPeng Xie, RanRan Tang, Le Zhang, ChenBo Ji, LiangHui You, XiRong Guo
OBJECTIVES: To gain insight into the effect of metformin on losing weight from peptidomic perspective and to screen potential active peptides for reducing fat lipid deposition. METHODS: After determining the proper concentration of metformin on human primary visceral adipocytes, we constructed a comparative peptidomic profiling between control and metformin treatment group (n = 3) using a stable isobaric labeling strategy involving tandem mass tag reagents, followed by liquid chromatography tandem mass spectrometry...
August 12, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28801552/gene-location-expression-and-function-of-fndc5-in-meishan-pigs
#19
Chunbo Cai, Gaojun Xiao, Lili Qian, Shengwang Jiang, Biao Li, Shanshan Xie, Ting Gao, Xiaorong An, Wentao Cui, Kui Li
Irisin is a new muscular regulatory factor that is generated by the cleavage of its precursor protein fibronectin type III domain-containing protein 5 (FNDC5). Irisin promotes fat consumption due to its stimulatory role in the browning of the adipocytes in mice. Currently, there is no report on FNDC5 functions in pigs as model animals. In this study, we investigated the expression patterns and functions of FNDC5 in Meishan pigs. Our results showed that FNDC5 gene in Meishan pigs contains five transcripts, all of which can be translated into functional intact irisin proteins...
August 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28796694/myoepithelioma-of-soft-tissue-with-both-squamous-and-adipocytic-metaplasia
#20
Ashley Elsensohn, Joshua H Mo, Tyler J Maly, Patrick K Lee, Sebastien de Feraudy
Soft tissue, or cutaneous, myoepitheliomas are rare tumors arising solely from a myoepithelial origin. These neoplasms are typically associated with uncertain differentiation and can contain cellular morphologies that include spindle, plasmacytoid, epithelioid, or clear cell forms. Soft tissue myoepitheliomas are commonly found on the lower limbs and in the pelvic girdle but can occur throughout the body. A small minority display heterogenous differentiation, typically osseous or cartilaginous in nature. Squamous and adipocytic cell types are much rarer...
August 3, 2017: American Journal of Dermatopathology
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