Changes and Significance of Interleukin 17 Expression in Patients After Renal Transplantation.

Background: The purpose of this study was to investigate the expression and significance of interleukin (IL)-17 in acute rejection after renal transplantation.

Methods: From September 2019 to December 2021, patients and healthy volunteers who underwent renal allograft transplantation and renal biopsy in our hospital were selected and divided into 4 groups: the stable group (stable) showed no obvious abnormality in renal transplantation pathology; the pathologic diagnosis of acute rejection was the rejection group; the pathologic diagnosis of renal transplantation was immunosuppressive poisoning in the drug group; and the normal group (control) was healthy volunteers. The expression of IL-17 was detected by reverse transcription-polymerase chain reaction, quantitative enzyme-linked immunosorbent assay, and immunohistochemistry. Analysis of the area under the curve and sensitivity and specificity of IL-17 for the diagnosis of acute rejection after raw transplantation was done using receiver operating characteristic curves.

Results: Compared with those in the normal group and the stable group, the expression of IL-17 DNA in the blood, the value of IL-17 in the blood, and the integrated optical density value of IL-17 in the transplanted kidney were significantly higher in the rejection group (P < .05). There were no statistically significant differences in the expression of blood IL-17 DNA, the value of blood IL-17, or the integrated optical density value of transplanted kidney IL-17 between the normal group and the stable group (P > .05).

Conclusion: IL-17 is involved in acute rejection after renal transplantation. Increased expression of IL-17 is seen in the blood and kidneys of patients with acute rejection after renal transplantation. The detection of IL-17 may provide a theoretical basis for diagnosing and treating acute rejection in human kidney transplantation.