A model of Isolated Renal Hemoperfusion

허혈/재관류 손상연구를 위한 체외 신장 재관류 모델

  • Nam, Hyun-Suk (School of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University) ;
  • Woo, Heung-Myong (School of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University)
  • 남현숙 (강원대학교 수의학부대학 외과학교실) ;
  • 우흥명 (강원대학교 수의학부대학 외과학교실)
  • Published : 2009.10.31

Abstract

Ischemia-reperfusion (I/R) injury is associated with an increased risk of acute rejection, delayed graft function and long-term changes after kidney transplantation. The reperfusion models remain unsolved complications such as vascular obstruction and blood leakage. We developed an alternative model of isolated hemoperfusion in porcine kidneys. In the present study we introduced a newly developed reperfusion method. A connector was used instead of surgical suture for the vascular anastomosis on the inguinal region in which main femoral vessels are parallel and big enough to perfuse the kidney. To assess renal perfusion quality of the modified hemoreperfusion model, we analyzed both hemodynamic values and patterns of I/R injury following a renal reperfusion. Following unilateral nephrectomy, the kidneys were preserved for 0, 24 and 48 hours at $4^{\circ}C$ with histidine-tryptophan ketogluatarate (HTK) solution and reperfused for 3 hours by vascular anastomosis connected to the femoral artery and vein in inguinal region. Histolopathological examinations were assessed on kidney biopsy specimens, taken after each cold storage and reperfusion. No differences of hemodynamic values were observed between aorta and femoral artery. The average warm ischemia time before reperfusion start was $7.0{\pm}1.1$ minutes. There were no complications including vascular obstruction and blood leakage during the reperfusion. I/R injury of the perfused kidneys in this model was dependent upon the cold ischemia time. The results support that the modified perfusion model is simple and appropriate for the study of early renal I/R injury and transplant immunology.

허혈/재관류 손상은 장기이식 분야에서 해결해야 할 주요 문제점으로 알려져 있다. 본 연구에서는 대퇴 동,정맥 부위에서 기존의 혈관 문합법 대신 맥관 connector를 이용하여 간단하면서 효과적인 체외 재관류 모델을 개발하였기에 소개하고자 한다. 개발된 모델이 허혈/재관류 손상연구에 효과적인지 알아보기 위해 혈액 동력학적 평가와 신장의 재관류 후 손상 양상을 분석하였다. 기존의 재관류 모델에서 사용되는 문합 부위인 복강 대동맥의 혈압과 본 연구에서 재관류 부위로 활용된 대퇴동맥의 혈압은 유의적 차이가 없었다. 허혈 손상 후 재관류 효과를 알아보기 위해 미니돼지에서 적출한 신장을 HTK 용액에 24, 48시간 동안 각각 저온보관 후 대퇴부에 이식하여 재관류 한 결과, 신장의 재관류까지 수술시간은 평균 $7.0{\pm}1.1$분 소요되었으며, 3시간 재관류 후 재관류 손상 정도는 저온보관시간에 따라 증가되는 것이 확인되었다. 이는 개발된 모델이 맥관 문합 없이 간단한 관류방법이면서도 기존의 복잡한 수술에 의한 재관류 방법과 유사한 손상 모델을 만들 수 있는 효과적인 허혈/재관류 동물모델이라는 것을 의미한다. 따라서 본 연구에서 개발한 신장 재관류 모델은 초기 허혈/재관류 손상 연구와 장기이식에서 이식면역연구에 효과적인 모델이라 사료된다.

Keywords

References

  1. Chatterjee PK, Zacharowski K, Cuzzocrea S, Otto M, Thiemermann C. Inhibitors of poly (ADP-ribose) synthetase reduce renal ischemia-reperfusion injury in the anesthetized rat in vivo. FASEB J 2000; 14: 641-651
  2. Faure JP, Petit I, Zhang K, Dutheil D, Doucet C, Favreau F, Eugene M, Goujon JM, Tillement JP, Mauco G, Vandewalle A, Hauet T. Protective roles of polyethylene glycol and trimetazidine against cold ischemia and reperfusion injuries of pig kidney graft. Am J Transplant 2004; 4: 495-504 https://doi.org/10.1111/j.1600-6143.2004.00365.x
  3. Grosse-Siestrup C, Unger V, Fehrenberg C, v Baeyer H, Fischer A, Schaper F, Groneberg DA. A model of isolated autologously hemoperfused porcine laughterhouse kidneys. Nephron 2002; 92: 414-421 https://doi.org/10.1159/000063298
  4. Grosse-Siestrup C, Unger V, Meissler M, Nagel S, Wussow A, Peiser C, Fischer A, Schmitt R, Groneberg DA. Hemoperfused isolated porcine slaughterhouse kidneys as a valid model for pharmacological studies. J Pharm Sci 2003; 92: 1147-1154 https://doi.org/10.1002/jps.10383
  5. Hauet T, Goujon JM, Vandewalle A, Baumert H, Lacoste L, Tillement JP, Eugene M, Carretier M. Trimetazidine reduces renal dysfunction by limiting the cold ischemia/reperfusion injury in autotransplanted pig kidneys. J Am Soc Nephrol 2000; 11: 138-148
  6. Hauet T, Han Z, Wang Y, Hameury F, Jayle C, Gibelin H, Goujon JM, Eugene M, Papadopoulos V. Modulation of peripheral- type benzodiazepine receptor levels in a reperfusion injury pig kidney-graft model. Transplantation 2002; 74: 1507- 1515 https://doi.org/10.1097/00007890-200212150-00006
  7. Karaman A, Turkmen E, Gursul C, Tas E, Fadillioglu E. Prevention of renal ischemia/reperfusion-induced injury in rats by leflunomide. Int J Urol 2006; 13: 1434-1441 https://doi.org/10.1111/j.1442-2042.2006.01592.x
  8. Mekkaoui C, Friggi A, Rolland PH, Bodard H, Piquet P, Bartoli JM, Mesana T. Simultaneous measurements of arterial diameter and blood pressure to determine the arterial compliance, wall mechanics and stresses in vivo. Eur J Vasc Endovasc Surg 2001; 21: 208-213. 9 https://doi.org/10.1053/ejvs.2001.1320
  9. Perico N, Cattaneo D, Sayegh MH, Remuzzi G. Delayed graft function in kidney transplantation. Lancet 2004; 364: 1814-1827 https://doi.org/10.1016/S0140-6736(04)17406-0
  10. Savioz D, Bolle JF, Graf JD, Jeanjacquot A, Savioz M, Dietler G, Favre H, Leski M, Morel D, Morel P. Kinetics of cellular viability in warm versus cold ischemia conditions of kidney preservation. A biometric study. Transplantation 1996; 62: 414-417 https://doi.org/10.1097/00007890-199608150-00020
  11. Seal JB, Gewertz BL. Vascular dysfunction in ischemia-reperfusion injury. Ann Vasc Surg 2005; 19: 572-584 https://doi.org/10.1007/s10016-005-4616-7