Journal of Functional Foods (Aug 2024)

Zingerone promotes the survival of ischaemic flap via the KEAP1-Nrf2 pathway

  • Chengji Dong,
  • Gaoxiang Yu,
  • Xianhui Ma,
  • Zhuliu Chen,
  • Ningning Yang,
  • Xuankuai Chen,
  • Yingying Lai,
  • Jiayi Zhao,
  • Yanlan Gu,
  • Kailiang Zhou,
  • Weiyang Gao,
  • Jian Ding,
  • Xuwei Zhu

Journal volume & issue
Vol. 119
p. 106328

Abstract

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Background: How to improve flap necrosis in distal flaps is still a popular topic in clinical flap research. Zingerone (ZIN), as a plant extract, has therapeutic effects on many diseases. The purpose of our study was to explore whether ZIN can promote the survival of ischaemic skin flaps and its specific mechanism. Methods: An ischemic flap model was established in the dorsal region of mice. The changes of angiogenesis, oxidative stress, apoptosis and Keap1-Nrf2 related proteins in the skin flap were detected by immunofluorescence, western blot and qPCR. Overexpression of Keap1 by adeno-associated virus (AAV) was used to study the specific pathway and mechanism. Results: The results showed that ZIN can induce angiogenesis and reduce oxidative stress and apoptosis to promote flap survival. Increased expression of Keap1 reversed the therapeutic effect of ZIN. Conclusion: ZIN activates Nrf2 by inhibiting Keap1 activation, thus promoting angiogenesis and inhibiting oxidative stress and apoptosis.

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