Targeting ferroptosis halts graft deterioration in transplantation

Area of Science:

• Transplantation immunology
• Organ preservation
• Cellular injury mechanisms

Background:

• Ischemia-reperfusion injury (IRI) is a major cause of graft damage and limits the use of suboptimal donor organs.
• Machine perfusion technologies are advancing organ transplantation but IRI remains a significant challenge.

Purpose of the Study:

• To investigate the efficacy of pharmacological ferroptosis inhibition in preserving liver and lung graft function during machine perfusion.
• To determine if targeting lipid peroxidation-driven cell death can mitigate IRI-induced graft deterioration.

Main Methods:

• Utilized porcine and human ex vivo perfusion platforms to simulate transplantation conditions.
• Administered pharmacological ferroptosis inhibitors to assess their protective effects on graft viability and function.
• Evaluated graft function and indicators of cellular injury post-perfusion.

Main Results:

• Pharmacological ferroptosis inhibition significantly preserved liver and lung graft function.
• Inhibition of ferroptosis mitigated cellular damage associated with ischemia-reperfusion.
• The protective effects were observed across both porcine and human perfusion models.

Conclusions:

• Targeting ferroptosis, a form of lipid peroxidation-driven cell death, is a promising therapeutic strategy for reducing IRI.
• Pharmacological ferroptosis inhibition can enhance graft preservation in the context of machine perfusion transplantation.
• These findings position ferroptosis inhibition as an actionable target for improving outcomes in organ transplantation.