Rosuvastatin promotes survival of random skin flaps through AMPK-mTOR pathway-induced autophagy

Hantao Ye1, Feida Li1, Yang Shen1

  • 1Department of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China; Key Laboratory of Orthopaedics of Zhejiang Province, Wenzhou, Zhejiang, China; The Second School of Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China.

Insights

Rosuvastatin, a plant-derived flavonoid, enhances random skin flap survival by promoting angiogenesis and autophagy while reducing pyroptosis and oxidative stress. This study uncovers its therapeutic potential in plastic surgery.

Area of Science:

  • Biomedical Engineering
  • Molecular Biology
  • Plastic Surgery

Background:

  • Random skin flaps are crucial in plastic surgery but are prone to necrosis from ischemia-reperfusion injury.
  • Flap survival is a significant clinical challenge, necessitating novel therapeutic strategies.
  • Rosuvastatin, a flavonoid, has shown potential in aiding flap survival.

Purpose of the Study:

  • To investigate the underlying mechanisms by which rosuvastatin improves random skin flap survival.
  • To elucidate the role of autophagy, angiogenesis, pyroptosis, and oxidative stress in rosuvastatin's protective effects.
  • To evaluate rosuvastatin's efficacy in a preclinical model.

Main Methods:

  • Experimental mice were divided into control, rosuvastatin, and 3-methyladenine (3MA) plus rosuvastatin groups.
  • Histological and protein analyses were performed to assess angiogenesis, pyroptosis, oxidative stress, and autophagy.
  • Tissue edema was also evaluated to gauge treatment effects.

Main Results:

  • Rosuvastatin significantly improved random skin flap survival and reduced tissue edema.
  • The treatment promoted angiogenesis and induced autophagy.
  • Rosuvastatin markedly reduced pyroptosis and oxidative stress.

Conclusions:

  • Rosuvastatin enhances random skin flap survival by promoting angiogenesis and autophagy.
  • The protective effects are mediated by the reduction of pyroptosis and oxidative stress through autophagy induction.
  • Rosuvastatin represents a promising therapeutic agent for improving outcomes in plastic surgery involving skin flaps.

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