Expression of ICAM-1 in the Preserved Rat Kidney.
- Author:
Nam Ryeol KIM
1
;
Youn Ki MIN
;
Seok Hyung KANG
;
Jun Won UM
;
Min Young CHO
;
Jae Bok LEE
;
Sang Yong CHOI
;
Sung Ock SUH
;
Bum Hwan KOO
;
Cheung Wung WHANG
;
Suk In JUNG
Author Information
1. Department of Surgery, College of Medicine, Korea University, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
ICAM-1;
Renal transplantation;
Cold ischemia
- MeSH:
Animals;
Baths;
Blotting, Western;
Capillaries;
Cold Ischemia;
Humans;
Immunohistochemistry;
Intercellular Adhesion Molecule-1*;
Ischemia;
Kidney Cortex;
Kidney Transplantation;
Kidney*;
Male;
Rats*;
RNA, Messenger;
Transplants;
Wisconsin
- From:Journal of the Korean Surgical Society
2001;61(1):1-7
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE:Prolonged cold ischemia has been shown to be an important factor in the development of post-transplant renal dysfunction. The exact mechanisms have not been completely defined. The expression of ICAM-1 (CD-54) in rat kidneys stored at 0, 4, 12, 24 and 48 hours in University of Wisconsin (UW) solution was studied in an attempt to correlate ischemia time with increased immunogenicity of the graft. METHODS: Kidneys from male Lewis rats were perfused with UW solution, removed and bathed in UW solution at 4 degrees C for 4, 12, 24, and 48 hours respectively. For the evaluation of expression of ICAM-1, immunohistochemical staining, Western blotting and RT-PCR were performed. RESULTS: Immunohistochemical staining in normal non-ischemic kidneys revealed that glomerular capillaries expressed ICAM-1 but that tubular cells did not. The preserved kidneys were analyzed with immunohistochemistry, Western blotting and semi-quantitative RT-PCR and showed increased transcription and expression of ICAM-1 in the cortex of the kidney. This expression reached a maximum at 24 hours and declined at 48 hours. The ICAM-1 protein expression in the preserved kidney cortex was increased at 4 hours (1.68+/-0.60 fold of control kidneys, (p=0.06)), 12 hours (2.38+/-0.90 fold, (p=0.02)), 24 hours (3.70+/-1.29 fold, (p=0.01)), and 48 hours (2.00+/-0.54 fold, (p=0.01)). The mRNA expression (the ratio of ICAM-1/GAPDH) in preserved kidneys cortex relative to control kidneys was increased at 4 hours (1.19+/-0.14 fold of control kidneys), 12 hours (1.38+/-0.16 fold),24 hours (1.77+/-0.29 fold), and 48 hours (1.19+/-0.12 fold) (p<0.05 for all time points). CONCLUSION: We conclude that cold preservation of rat kidneys in UW solution induces increasing levels of ICAM-1 cell surface expression and gene transcription. This increase in adhesion molecule expression can be a contributing factor in the development of post-transplant renal dysfunction by increasing the immunogenicity of the graft.
