Receptor-Interacting Protein Kinase 3-Mediated Modulation of Endothelial Cell Necroptosis and Mitochondrial Dysfunction through AMPK/Drp1 Signaling Pathway: Insights into the Pathophysiological Mechanisms of Lipopolysaccharide-Induced Acute Lung Injury
2025

How Ripk3 Affects Lung Injury and Cell Death

publication Evidence: high

Author Information

Author(s): Zhao Zhaoning, Zhu Pingjun, Lou Yue, Hou Ruoyu, Sun Heqiang, Du Yingzhen, Xu Guogang

Primary Institution: Health Management Institute, The Second Medical Center & National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.

Hypothesis

Ripk3 influences mitochondrial fission, leading to the initiation of necroptosis in the development of ARDS.

Conclusion

Ripk3 deletion protects against LPS-induced acute lung injury by alleviating inflammation, oxidative stress, and tissue damage.

Supporting Evidence

  • Ripk3 is upregulated in lung tissues after LPS treatment.
  • Ripk3 deletion improves lung tissue morphology and reduces inflammation.
  • Ripk3 promotes necroptosis through the AMPK/Drp1/mPTP opening pathway.

Takeaway

This study shows that a protein called Ripk3 can cause lung cells to die in a harmful way when the lungs are injured, but removing Ripk3 can help protect the lungs.

Methodology

The study used Ripk3-deficient mice and various assays to assess lung injury, inflammation, and mitochondrial function.

Limitations

The in vitro environment may not fully replicate the complex in vivo conditions.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.7150/ijms.104932

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