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Klotho as a potential predictor of deceased donor kidney transplantation outcomes
  • 작성일2021-02-22
  • 최종수정일2021-02-22
  • 담당부서연구기획과
  • 연락처043-719-8033
  • 89

Annals of surgical treatment and research, 2020.98(6), 332-339, DOI: https://doi.org/10.4174/astr.2020.98.6.332


Klotho as a potential predictor of deceased donor kidney transplantation outcomes

Kim S, Han A;Ahn S;Min SI;Min SK;Ha J


Abstract

    Purpose: Klotho is an antiaging factor mainly produced by renal tubular cells. Klotho is reportedly decreased in an animal model of acute kidney injury and patients with chronic kidney disease. However, information on Klotho expression after kidney transplantation is limited. We analyzed the correlation between donor Klotho expression and clinical outcomes of kidney transplantation.
    Methods: Sixty patients who underwent deceased donor kidney transplantation between March 2015 and October 2017 were enrolled. Serum and tissue Klotho expression levels were measured by enzyme-linked immunosorbent assay and immunohistochemistry, respectively. Graft function was assessed by estimated glomerular filtration rate (eGFR).
    Results: Patients were divided into 2 groups according to donor Klotho expression in renal tissues. A greater improvement in eGFR was observed at 1 week after transplantation in patients receiving kidneys with higher Klotho expression (47.5 ±21.9 mL/min/1.73 m2 vs. 63.9 ± 28.2 mL/min/1.73 m2, P = 0.030). Patients were also classified into 2 groups according to donor serum Klotho level. There was a tendency for a higher eGFR at 12 months after transplantation in patients receiving kidneys from donors with a higher Klotho level (51.0 ± 18.0 mL/min/1.73 m2 vs. 61.2 ± 16.5 mL/min/1.73 m2, P = 0.059).
    When subgrouped into patients with or without biopsy-proven acute rejection, 12-month eGFR remained higher in patients receiving kidneys from donors with higher serum Klotho.
    Conclusion: Our data demonstrated that donor tissue expression of Klotho correlated with early recovery of eGFR after kidney transplantation. Donor serum Klotho level tended to be associated with posttransplant 12-month eGFR. Donor Klotho expression might be a new predictor for deceased donor kidney transplantation outcome.



  • 본 연구는 질병관리본부 연구개발과제연구비를 지원받아 수행되었습니다.
  • This research was supported by a fund by Research of Korea Centers for Disease Control and Prevention.


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