Endoplasmic Reticulum Stress Links Obesity, Insulin Action, and Type 2 Diabetes

@article{Ozcan2004EndoplasmicRS,
  title={Endoplasmic Reticulum Stress Links Obesity, Insulin Action, and Type 2 Diabetes},
  author={Umut Özcan and Qiong Cao and Erkan Yilmaz and Ann-Hwee Lee and Neal N. Iwakoshi and Esra Özdelen and Gurol Tuncman and Cem Z. G{\"o}rg{\"u}n and Laurie H. Glimcher and G{\"o}khan S. Hotamışlıgil},
  journal={Science},
  year={2004},
  volume={306},
  pages={457 - 461}
}
Obesity contributes to the development of type 2 diabetes, but the underlying mechanisms are poorly understood. Using cell culture and mouse models, we show that obesity causes endoplasmic reticulum (ER) stress. This stress in turn leads to suppression of insulin receptor signaling through hyperactivation of c-Jun N-terminal kinase (JNK) and subsequent serine phosphorylation of insulin receptor substrate–1 (IRS-1). Mice deficient in X-box–binding protein–1 (XBP-1), a transcription factor that… 

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Endoplasmic Reticulum Stress and Obesity.

  • E. Yilmaz
  • Biology
    Advances in experimental medicine and biology
  • 2017
Characterizing the mechanisms contributing to obesity and identifying potential targets for its prevention and treatment will have a great impact on the control of associated conditions, particularly T2D.

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The detailed mechanism of the decreased expression of HSP72 in subjects with type 2 diabetes has not been clarified yet, but it was reported that the trimer formation of HSF-1 is dependent, at least in part, on the inactivation of glycogen synthase kinase (GSK)-3b.
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