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Article

Ubiquitin-fold modifier 1 inhibits apoptosis by suppressing the endoplasmic reticulum stress response in Raw264.7 cells

  • Authors:
    • Xiaolei Hu
    • Qi Pang
    • Qiongna Shen
    • Huifang Liu
    • Jiangping He
    • Jing Wang
    • Jie Xiong
    • Huijie Zhang
    • Fengling Chen
  • View Affiliations / Copyright

    Affiliations: Department of Endocrinology, Shanghai 3rd People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 201999, P.R. China
  • Pages: 1539-1546
    |
    Published online on: April 7, 2014
       https://doi.org/10.3892/ijmm.2014.1728
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Abstract

Ubiquitin-fold modifier 1 (Ufm1) is a new member of the ubiquitin-like protein family, and its biological function remains largely unknown, particularly in macrophages. In this study, we demonstrate that Ufm1 expression is increased in diabetic mouse resident peritoneal macrophages (RPMs) and in the mouse macrophage cell line, Raw264.7, subjected to endoplasmic reticulum (ER) stress. Following treatment of the cells with the ER stress inducers, thapsigargin (TG) or tunicamycin (TM), the lentiviral short hairpin RNA (shRNA)-mediated knockdown of Ufm1 increased the apoptosis of Raw264.7 cells. Furthermore, these cells had higher expression levels of immunoglobulin heavy chain-binding protein (BiP) and C/EBP homologous protein (CHOP), which are markers of the ER stress response. The overexpression of Ufm1 induced by lentiviral infection in the Raw264.7 cells treated with the ER stress inducers, TG or TM, resulted in the opposite effect. Taken together, our results suggest that Ufm1 is upregulated in diabetic mouse RPMs and in Raw264.7 cells in response to ER stress and that Ufm1 protects macrophages against apoptosis. Thus, Ufm1 may be a novel gene that protects against ER stress-induced apoptosis in macrophages.
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Copy and paste a formatted citation
Spandidos Publications style
Hu X, Pang Q, Shen Q, Liu H, He J, Wang J, Xiong J, Zhang H and Chen F: Ubiquitin-fold modifier 1 inhibits apoptosis by suppressing the endoplasmic reticulum stress response in Raw264.7 cells. Int J Mol Med 33: 1539-1546, 2014.
APA
Hu, X., Pang, Q., Shen, Q., Liu, H., He, J., Wang, J. ... Chen, F. (2014). Ubiquitin-fold modifier 1 inhibits apoptosis by suppressing the endoplasmic reticulum stress response in Raw264.7 cells. International Journal of Molecular Medicine, 33, 1539-1546. https://doi.org/10.3892/ijmm.2014.1728
MLA
Hu, X., Pang, Q., Shen, Q., Liu, H., He, J., Wang, J., Xiong, J., Zhang, H., Chen, F."Ubiquitin-fold modifier 1 inhibits apoptosis by suppressing the endoplasmic reticulum stress response in Raw264.7 cells". International Journal of Molecular Medicine 33.6 (2014): 1539-1546.
Chicago
Hu, X., Pang, Q., Shen, Q., Liu, H., He, J., Wang, J., Xiong, J., Zhang, H., Chen, F."Ubiquitin-fold modifier 1 inhibits apoptosis by suppressing the endoplasmic reticulum stress response in Raw264.7 cells". International Journal of Molecular Medicine 33, no. 6 (2014): 1539-1546. https://doi.org/10.3892/ijmm.2014.1728
Copy and paste a formatted citation
x
Spandidos Publications style
Hu X, Pang Q, Shen Q, Liu H, He J, Wang J, Xiong J, Zhang H and Chen F: Ubiquitin-fold modifier 1 inhibits apoptosis by suppressing the endoplasmic reticulum stress response in Raw264.7 cells. Int J Mol Med 33: 1539-1546, 2014.
APA
Hu, X., Pang, Q., Shen, Q., Liu, H., He, J., Wang, J. ... Chen, F. (2014). Ubiquitin-fold modifier 1 inhibits apoptosis by suppressing the endoplasmic reticulum stress response in Raw264.7 cells. International Journal of Molecular Medicine, 33, 1539-1546. https://doi.org/10.3892/ijmm.2014.1728
MLA
Hu, X., Pang, Q., Shen, Q., Liu, H., He, J., Wang, J., Xiong, J., Zhang, H., Chen, F."Ubiquitin-fold modifier 1 inhibits apoptosis by suppressing the endoplasmic reticulum stress response in Raw264.7 cells". International Journal of Molecular Medicine 33.6 (2014): 1539-1546.
Chicago
Hu, X., Pang, Q., Shen, Q., Liu, H., He, J., Wang, J., Xiong, J., Zhang, H., Chen, F."Ubiquitin-fold modifier 1 inhibits apoptosis by suppressing the endoplasmic reticulum stress response in Raw264.7 cells". International Journal of Molecular Medicine 33, no. 6 (2014): 1539-1546. https://doi.org/10.3892/ijmm.2014.1728
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