Aspirin-induced inhibition of adipogenesis was p53-dependent and associated with inactivation of pentose phosphate pathway.

doi:10.1016/j.ejphar.2014.03.009

中山醫學大學機構典藏 CSMUIR > 口腔醫學院 > 牙醫學系暨碩士班 > 期刊論文 > Item 310902500/10559

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: https://ir.csmu.edu.tw:8080/ir/handle/310902500/10559

题名:	Aspirin-induced inhibition of adipogenesis was p53-dependent and associated with inactivation of pentose phosphate pathway.
作者:	Su YF Yang, SH Lee, YH Wu, BC Huang, SC Liu, CM Chen, SL Pan, YF Chou, SS Chou, MY Yang HW
贡献者:	中山醫學大學
关键词:	Adipogenesis;Aspirin;Aspirin (PubChem CID: 2244);Aspirin resistance;ERK 1/2 MAPK;Oil Red O (PubChem CID: 6046885);PD98059 (PubChem CID: 4713);Pentose phosphate pathway;Pifithrin-α (PubChem CID: 9929138);Tumor suppressor p53
日期:	2014
上传时间:	2015-03-27T08:35:15Z (UTC)
ISSN:	0014-2999
摘要:	Obesity has become a major public health problem of global significance. Today, aspirin remains the most commonly used medication for the treatment of pyrexia, pain, inflammation and antiplatelet. The present study aims at evaluating the possible existence of a putative p53-dependent pathway underlying the aspirin-induced inhibition of adipogenesis. Cell migration assay was identified by the ability to migrate through Transwell insert. Oil Red O staining was employed to quantify adipose accumulation. The concentration of glucose and triglyceride were measured by using assay kits. The expression levels of several master regulatory molecules controlling various signal pathways were monitored using the immunoblotting techniques. Aspirin significantly inhibited preadipocyte migration and adipose accumulation. The p53-p21 signaling and the expression of differentiation marker glycerol-3-phosphate dehydrogenase were increased in a dose-dependent manner. It indicated that aspirin induced adipocyte differentiation through p53-p21 pathway. The oncogenic ERK 1/2 MAPK signaling was induced, whereas, the expression of adipogenic markers peroxisome proliferator-activated receptor γ (PPARγ), adipocyte fatty acid-binding protein (A-FABP) and inflammatory factors cyclooxygenase-2 (Cox-2), tumor necrosis factor α (TNFα) and inducible nitric oxide synthase (iNOS) were inhibited. Aspirin negatively regulated the pentose phosphate pathway (PPP) by inhibiting the expression of rate-limiting enzyme glucose-6-phosphate dehydrogenase. Knockdown the expression of oncogenic ERK 1/2 MAPK by using 10 μM PD98059 significantly increased triglyceride synthesis, adipose accumulation and activated PPP, however, decreased glucose uptake. Diverted the glucose flux to PPP, rather than increased glucose uptake, was associated with adipogenesis. Down-regulated the expression of tumor suppressor p53 by 10 μM pifithrin-α (PFTα) alone had no effect on adipose accumulation. However, administration of aspirin accompanied with PFTα abolished aspirin-induced inhibition of adipogenesis. We demonstrated that aspirin-induced inhibition of adipogenesis was p53-dependent and associated with inactivation of PPP. Blockade PPP may be a novel strategy for obesity prevention and therapy. Moreover, when use aspirin in therapeutic strategy, the p53 status should be considered.
URI:	https://ir.csmu.edu.tw:8080/ir/handle/310902500/10559 http://dx.doi.org/10.1016/j.ejphar.2014.03.009
關聯:	Eur J Pharmacol. 2014 Sep 5;738:101-10.
显示于类别:	[牙醫學系暨碩士班] 期刊論文

文件中的档案:

档案	描述	大小	格式	浏览次数
index.html	報導	0Kb	HTML	569	检视/开启

检视Licence

在CSMUIR中所有的数据项都受到原著作权保护.

TAIR相关文章

数据加载中.....