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The multifaceted role of complement in kidney transplantation
Ali-Reza Biglarnia1, Markus Huber-Lang2, Camilla Mohlin3
1Department of Transplantation, Skåne University Hospital, Malmö, Lund University, Lund, Sweden.
Nature Reviews. Nephrology
|October 28, 2018
Summary
The complement system drives inflammation and damage in kidney transplantation, particularly from ischemia-reperfusion injury and antibody-mediated rejection. New therapies targeting complement activation show promise for protecting transplanted kidneys.
Area of Science:
- Transplantation immunology
- Inflammation biology
Background:
- The complement system plays a key role in inflammatory responses during kidney transplantation.
- Ischemia-reperfusion injury and antibody-mediated rejection (ABMR) are major causes of graft damage, often involving complement activation.
- ABMR, linked to ABO and HLA incompatibility, causes severe damage to transplanted kidneys.
Purpose of the Study:
- To review the role of the complement system in kidney transplantation.
- To discuss emerging therapies targeting complement activation for improved transplant outcomes.
Main Methods:
- Review of existing literature on complement system involvement in transplantation.
- Analysis of current and developing therapeutic strategies targeting complement pathways.
Main Results:
- Complement activation is implicated in donor death complications, surgical trauma, organ preservation, and ischemia-reperfusion injury.
- Complement significantly contributes to both humoral and cellular immune responses against the allograft.
- Ischemia-reperfusion injury is a primary driver of complement activation and subsequent graft damage in kidney transplantation.
Conclusions:
- The complement system is a critical factor in kidney transplant injury and rejection.
- Emerging complement-inhibiting drugs offer potential therapeutic benefits across various stages of transplantation.
- Targeting complement activation may ameliorate ischemia-reperfusion injury, treat ABMR, and modulate immune responses, improving graft survival.
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