| خلاصه مقاله | Considering the importance of mixed lymphocyte reaction (MLR) in determining immunological compatibility between donors and recipients before transplantation, this prospective study aimed to evaluate CFSE-MLR, kidney function, and donor-specific antibodies (DSA) to improve transplant outcomes. The study investigated MLR between donors and recipients and its effects on graft function. This study included 40 donor-recipient pairs meeting cross-match criteria for transplantation. Peripheral blood (5 mL) was collected from donors and recipients, and peripheral blood mononuclear cells (PBMCs) were isolated. Cell viability was determined using trypan blue staining. Recipient PBMCs (responder cells) were labeled with the cytoplasmic fluorescent dye CFSE and analyzed via flow cytometry. Transplanted kidney function was assessed by measuring serum creatinine and BUN levels, correlating these with MLR cellular proliferation. The relationship between pre-transplant MLR proliferation rates and donor-specific antibody (DSA) titers was examined, alongside correlations between MLR results, DSA, and PRA% with other pre-transplant tests. The percentage of proliferating cells increased significantly on days 3 and 5 compared to day 0. A significant positive correlation was observed between day 5 cellular proliferation and PRA Class II levels. ELISA results showed no significant correlation between pre-transplant cellular proliferation and serum DSA titers at six months. However, a positive and significant correlation was found between day 5 MLR proliferation and serum creatinine levels six months post-transplant. This study suggests that the CFSE-MLR method is a safer and more efficient alternative to conventional MLR, offering valuable diagnostic insights and strong correlations with transplant success. |