Effect of Intrasplenic Transplantation of Cryopreserved Hepatocytes into Partially Hepatectomized Rats.
- Author:
Seong Gyu HWANG
;
Ik Jin YUN
;
Yun Soo KIM
;
Kyung Chul KIM
;
Sung Pyo HONG
;
Pil Won PARK
;
Kyu Sung RIM
;
Joo Young CHO
;
Joon Seong LEE
;
Moon Sung LEE
;
Chan Sup SHIM
- Publication Type:Original Article
- Keywords:
Cryopreserved hepatocyte;
Hepatocyte transplantation;
Partial hepatectomy;
Acute hepatic failure
- MeSH:
Animals;
Cell Survival;
Collagenases;
Cryopreservation;
Glucose;
Hepatectomy;
Hepatocytes*;
Humans;
Liver;
Liver Failure, Acute;
Liver Transplantation;
Perfusion;
Portal Vein;
Rats*;
Spleen;
Survival Rate;
Tissue Donors
- From:The Korean Journal of Hepatology
1999;5(2):116-123
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND/AIMS: Various techniques of hepatocyte transplantation were actively studied as an alternative to liver transplantation, because of the difficulty of obtaining donor organ, technical difficulties, and high cost. Isolated hepatocytes could be appropriately banked and distributed on demand. We tried to investigate the effect of intrasplenic transplantation of allogenic cryopreserved hepatocytes, into spleen prior to 90% partial hepatectomy in rats, on the survival rate. METHODS: Cryopreserved hepatocytes, isolated by collagenase perfusion of the liver via the portal vein, were thawed and transplanted into the spleen of rats prior to induction of acute hepatic failure by resection of all lobes except caudate lobe (2.0x107 hepatocytes/rat). RESULTS: 1. The viability of freshly isolated hepatocyte was 70-5%, but cell viability after cryopreservation 30-0%. 2. Difference of survival in control and transplant group is not statistically significant. but the survival rate, 48 hours after 90% partial hepatectomy, for control (7) and transplanted group (11) were 0% and 18%, respectively. 3. Although the glucose reduction gradient was not significantly different between two groups, it was more prominent in the control group than in the transplanted group. 4. Engraftment and survival of transplanted hepatocytes were noted in the spleen 2 days after transplantation. CONCLUSIONS: We could not observe statistically significant improvement of survival with intrasplenic transplantation of cryopreserved hepatocytes in rats with 90% partial hepatectomy-nduced acute liver failure. However, 18% survival after 90% partial hepatectomy was noted in the transplanted group, compared to no survival in the control group. This suggests that intrasplenic transplantation of cryopreserved hepatocytes might be effective in the treatment of acute liver failure.
