Volume 17, Issue 11 pp. 692-698

Influence of ischaemia/reperfusion and LFA-1 inhibition on telomere lengths and CDKI genes in ex vivo haemoperfusion of primate kidneys

Archil B. Chkhotua

Corresponding Author

Archil B. Chkhotua

National Centre of Urology, Tsinandali St. 9, 380044 Tbilisi, Georgia

Transplantation Centre, University Clinic of Ulm, Ulm, Germany

E-mail: [email protected] Tel.: +995-99-210021 Fax: +1-507-2620646Search for more papers by this author
Hubert Schelzig

Hubert Schelzig

Transplantation Centre, University Clinic of Ulm, Ulm, Germany

Search for more papers by this author
Peter Wiegand

Peter Wiegand

Department of Legal Medicine, University Clinic of Ulm, Ulm, Germany

Search for more papers by this author
Stephan Grosse

Stephan Grosse

Transplantation Centre, University Clinic of Ulm, Ulm, Germany

Search for more papers by this author
Simone Reis

Simone Reis

Department of Legal Medicine, University Clinic of Ulm, Ulm, Germany

Search for more papers by this author
Martina Art

Martina Art

Transplantation Centre, University Clinic of Ulm, Ulm, Germany

Search for more papers by this author
Dietmar Abendroth

Dietmar Abendroth

Transplantation Centre, University Clinic of Ulm, Ulm, Germany

Search for more papers by this author
First published: 23 August 2005
Citations: 1

A.B. Chkhotua and H. Schelzig share firs authorship

Abstract

Abstract The telomere (T) length, p21(WAF1/CIP1) and p27(kip1) cyclin dependent kinase inhibitor (CDKI) genes are the markers of cell senescence and DNA damage. The aim of the study was to determine the influence of renal ischaemia/reperfusion (I/R) and anti-lymphocyte function-associated antigen-1 (LFA-1) monoclonal antibody (mAb) treatment on the value of the above-mentioned markers. Significantly higher levels of p21 and p27 were expressed by the glomeruli (P = 0.001 and P = 0.0001), tubules (P= 0.0065 and P = 0.0006), and interstitial cells (P = 0.0017 and P = 0.0022, respectively) of the xenoperfused kidneys. The mean T length of non-perfused renal specimens (5.56 ±0.60 kbp) was longer than that of the xenoperfused kidneys (5.46 ±0.36 kbp) [P= non-significant (NS)]. Addition of anti LFA-1 mAb did not significantly influence the gene expression profile in the xenoperfused kidneys. The mean T length was longer in the kidneys with anti-LFA-1 mAb than in those without the medication (5.7±0.11 vs 5.13±0.31 kbp) (P= 0.0661). Kidney I/R is associated with telomere shortening and an over-expression of p21 and p27 CDKIs, which indicates substantial DNA damage and/or accelerated tissue senescence. Although anti-LFA-1 mAb had some protective effect on the telomeres, it did not influence the gene expression profile in this study.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.