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Published on: February 12, 2016
Microchimerism and renal transplantation: doubt still persists.
A Saraji1, G Pourmand, A Mehrsai
1Urology Research Center, Kidney Transplantation Unit, Tehran, Iran. alisaraji505@yahoo.com
Transplantation Proceedings
|May 26, 2007
Summary
Microchimerism, the presence of donor cells, was studied in kidney transplant recipients. Better microchimerism was observed after living donor transplants, but it did not significantly impact graft survival.
Area of Science:
- Nephrology
- Immunology
- Transplantation Biology
Background:
- Microchimerism, the presence of donor-derived cells in recipients, is a phenomenon observed after organ transplantation.
- Understanding microchimerism's role in kidney transplantation is crucial for improving patient outcomes.
Purpose of the Study:
- To investigate the presence and potential impact of microchimerism in kidney transplant recipients.
- To compare microchimerism rates between different types of kidney allografts.
Main Methods:
- Retrospective evaluation of peripheral blood microchimerism (PBM) in 32 male-to-female kidney transplant recipients.
- Detection of PBM using nested polymerase chain reaction (PCR) targeting the SRY gene, with high sensitivity.
- Comparison of PBM presence with rejection episodes, allograft function, and donor/recipient characteristics.
Main Results:
- Peripheral blood microchimerism (PBM) was detected in 7 (21.9%) recipients.
- All microchimeric recipients received kidneys from living unrelated donors.
- No significant differences in rejection rates or graft function were observed between microchimeric and non-microchimeric groups.
Conclusions:
- Living donor kidney transplantation appears to facilitate better microchimerism establishment.
- The direct protective effect of microchimerism on renal allograft survival remains uncertain.
- Microchimerism alone may not play a major role in long-term kidney transplant success.
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