Open Access

Protective role of nuclear factor erythroid 2-related factor 2 in the hemorrhagic shock-induced inflammatory response

  • Authors:
    • Haige Zhao
    • Sijing Hao
    • Hongfei Xu
    • Liang Ma
    • Zheng Zhang
    • Yiming Ni
    • Luyang Yu
  • View Affiliations

  • Published online on: February 25, 2016     https://doi.org/10.3892/ijmm.2016.2507
  • Pages: 1014-1022
  • Copyright: © Zhao et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Hemorrhagic shock (HS) following trauma or major surgery significantly contributes to mortality. However, the mechanisms through which HS activates the inflammatory response are not yet fully understood. Nuclear factor-erythroid 2 (NF-E2) p45-related factor-2 (Nrf2), a bZIP transcription factor, is a master regulator of robust cytoprotective defenses. The present study investigated the role of Nrf2 in the pathophysiology of HS. Nrf2 expression in peripheral leukocytes obtained from patients with surgery-associated hemorrhage subjected to resuscitation treatment (termed HS patients) or healthy donors was examined by RT-qPCR. A marked increase in Nrf2 expression was detected in the leukocytes obtained from the HS patients, which indicates a correlation between Nrf2 expression and the development of HS. Wild-type (WT; Nrf2+/+) and Nrf2-deficient [Nrf2-/- or Nrf2‑knockout (KO)] mice were subjected to surgery to induce HS. Systemic inflammation was significantly elevated in the Nrf2-KO mice compared with the WT mice following HS, as assessed by an increase in serum cytokine levels [interleukin (IL)-6, tumor necrosis factor (TNF)-α and IL-1β], as well as high-mobility group box 1 protein (HMGB1) expression. The Nrf2-KO mice exhibited more severe lung and liver injury following HS as evidenced by increased tissue damage, increased myeloperoxidase (MPO) activity and the increased production of pro-inflammatory cytokines. Additionally, Nrf2 deficiency augmented cytokine production induced by the exposure of peritoneal mouse macrophages to lipopolysaccharide (LPS) following HS. Taken together, these results suggest that Nrf2 is a critical host factor which limits immune dysregulation and organ injury following HS.
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April-2016
Volume 37 Issue 4

Print ISSN: 1107-3756
Online ISSN:1791-244X

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Spandidos Publications style
Zhao H, Hao S, Xu H, Ma L, Zhang Z, Ni Y and Yu L: Protective role of nuclear factor erythroid 2-related factor 2 in the hemorrhagic shock-induced inflammatory response. Int J Mol Med 37: 1014-1022, 2016
APA
Zhao, H., Hao, S., Xu, H., Ma, L., Zhang, Z., Ni, Y., & Yu, L. (2016). Protective role of nuclear factor erythroid 2-related factor 2 in the hemorrhagic shock-induced inflammatory response. International Journal of Molecular Medicine, 37, 1014-1022. https://doi.org/10.3892/ijmm.2016.2507
MLA
Zhao, H., Hao, S., Xu, H., Ma, L., Zhang, Z., Ni, Y., Yu, L."Protective role of nuclear factor erythroid 2-related factor 2 in the hemorrhagic shock-induced inflammatory response". International Journal of Molecular Medicine 37.4 (2016): 1014-1022.
Chicago
Zhao, H., Hao, S., Xu, H., Ma, L., Zhang, Z., Ni, Y., Yu, L."Protective role of nuclear factor erythroid 2-related factor 2 in the hemorrhagic shock-induced inflammatory response". International Journal of Molecular Medicine 37, no. 4 (2016): 1014-1022. https://doi.org/10.3892/ijmm.2016.2507