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Article

Protective effects of SIRT1 in patients with proliferative diabetic retinopathy via the inhibition of IL-17 expression

  • Authors:
    • Shulin Liu
    • Yu Lin
    • Xin Liu
  • View Affiliations / Copyright

    Affiliations: Chongqing Key Laboratory of Ophthalmology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, P.R. China, Department of Traditional Chinese Medicine, Chongqing Medical University, Chongqing 400016, P.R. China, Department of Pharmacy, Chongqing Medical University, Chongqing 400016, P.R. China
  • Pages: 257-262
    |
    Published online on: November 18, 2015
       https://doi.org/10.3892/etm.2015.2877
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Abstract

Diabetic retinopathy (DR) is a chronic microvascular complication of diabetes that may lead to loss of vision. The pathogenesis of DR is complex and elevated expression levels of T helper (Th)17 cells and interleukin (IL)‑17 have been suggested to be associated with the development and progression of DR. Sirtuin 1 (SIRT1) is a nicotinamide‑adenine dinucleotide+‑dependent histone deacetylase that is downregulated in patients with DR. Previous studies have demonstrated that SIRT1 is capable of inhibiting the production of IL‑17. In the present study, 19 patients with proliferative diabetic retinopathy (PDR) and 20 non‑diabetic controls with idiopathic macular epiretinal membranes were recruited and the SIRT1 expression levels of excised specimens were analyzed using immunohistochemistry. IL‑17 expression levels in the sera from patients with PDR and controls were determined by enzyme‑linked immunosorbent assay (ELISA). Furthermore, SIRT1 mRNA and protein expression levels in peripheral blood mononuclear cells (PBMCs) from the two groups were analyzed following culture with or without a SIRT1 activator, resveratrol. IL‑17 expression levels in the supernatants of PBMCs were determined using ELISA and the results demonstrated that IL‑17 expression levels were increased in the sera of patients with PDR, as compared with the controls. Furthermore, increased expression levels of SIRT1 and IL‑17 were detected in fibrovascular membranes and PBMCs harvested from patients with PDR, respectively. Notably, SIRT1 mRNA and protein expression levels were decreased in the PBMCs of patients with PDR and IL‑17 production was inhibited following SIRT1 activation. The results of the present study indicated that imbalanced IL‑17 and SIRT1 expression levels may contribute to the pathogenesis of DR, and SIRT1 may have a protective role in PDR by inhibiting the production of IL-17.
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Copy and paste a formatted citation
Spandidos Publications style
Liu S, Lin Y and Liu X: Protective effects of SIRT1 in patients with proliferative diabetic retinopathy via the inhibition of IL-17 expression. Exp Ther Med 11: 257-262, 2016.
APA
Liu, S., Lin, Y., & Liu, X. (2016). Protective effects of SIRT1 in patients with proliferative diabetic retinopathy via the inhibition of IL-17 expression. Experimental and Therapeutic Medicine, 11, 257-262. https://doi.org/10.3892/etm.2015.2877
MLA
Liu, S., Lin, Y., Liu, X."Protective effects of SIRT1 in patients with proliferative diabetic retinopathy via the inhibition of IL-17 expression". Experimental and Therapeutic Medicine 11.1 (2016): 257-262.
Chicago
Liu, S., Lin, Y., Liu, X."Protective effects of SIRT1 in patients with proliferative diabetic retinopathy via the inhibition of IL-17 expression". Experimental and Therapeutic Medicine 11, no. 1 (2016): 257-262. https://doi.org/10.3892/etm.2015.2877
Copy and paste a formatted citation
x
Spandidos Publications style
Liu S, Lin Y and Liu X: Protective effects of SIRT1 in patients with proliferative diabetic retinopathy via the inhibition of IL-17 expression. Exp Ther Med 11: 257-262, 2016.
APA
Liu, S., Lin, Y., & Liu, X. (2016). Protective effects of SIRT1 in patients with proliferative diabetic retinopathy via the inhibition of IL-17 expression. Experimental and Therapeutic Medicine, 11, 257-262. https://doi.org/10.3892/etm.2015.2877
MLA
Liu, S., Lin, Y., Liu, X."Protective effects of SIRT1 in patients with proliferative diabetic retinopathy via the inhibition of IL-17 expression". Experimental and Therapeutic Medicine 11.1 (2016): 257-262.
Chicago
Liu, S., Lin, Y., Liu, X."Protective effects of SIRT1 in patients with proliferative diabetic retinopathy via the inhibition of IL-17 expression". Experimental and Therapeutic Medicine 11, no. 1 (2016): 257-262. https://doi.org/10.3892/etm.2015.2877
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