PMID- 9862853 OWN - NLM STAT- MEDLINE DCOM- 19990203 LR - 20121115 IS - 0270-9139 (Print) IS - 0270-9139 (Linking) VI - 29 IP - 1 DP - 1999 Jan TI - Restoration of serum albumin levels in nagase analbuminemic rats by hepatocyte transplantation. PG - 75-81 AB - Recently, we described a new strategy for hepatocyte transplantation, using retrorsine/partial hepatectomy (PH) in a DPPIV- mutant Fischer rat model. Treatment of rats with retrorsine, a pyrrolizidine alkaloid, blocks endogenous hepatocytes from proliferating, so that after exposure to this agent coupled with PH and hepatocyte transplantation, transplanted hepatocytes selectively repopulate the liver. In the present study, we determined whether this method of cell transplantation can restore biosynthetic and physiological function in the liver by transplanting normal hepatocytes into rats genetically deficient in albumin synthesis, the Nagase analbuminic rat (NAR). After hepatocyte transplantation, albumin mRNA and protein were identified in the liver by in situ hybridization and immunohistochemistry, respectively, and serum albumin levels were determined using sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), Western blot, and enzyme-linked immunosorbent assay (ELISA) methods. At 1 month posttransplantation, large clusters of cells expressing albumin mRNA and protein were identified in the liver, representing approximately 50% of hepatocytes for albumin mRNA and approximately 61% for protein. At 2 months' posttransplantation, cells expressing albumin mRNA represented approximately 77% of hepatocyte mass, and cells expressing albumin protein represented approximately 81% of total hepatocyte mass. Hepatocyte-transplanted NAR also exhibited normal or near-normal serum albumin levels (3.0 +/- 0.2 g/dL). High levels of serum albumin were sustained for the 2-month duration of experiments. These results demonstrate the ability of this protocol for hepatocyte transplantation to restore a major biosynthetic and physiological function of the liver, and suggest its potential use as a method to treat genetic-based or acquired liver diseases. FAU - Oren, R AU - Oren R AD - The Marion Bessin Liver Research Center, Albert Einstein College of Medicine, Bronx 10461, NY, USA. FAU - Dabeva, M D AU - Dabeva MD FAU - Petkov, P M AU - Petkov PM FAU - Hurston, E AU - Hurston E FAU - Laconi, E AU - Laconi E FAU - Shafritz, D A AU - Shafritz DA LA - eng GR - P30 DK41296/DK/NIDDK NIH HHS/United States GR - R01 DK17609/DK/NIDDK NIH HHS/United States GR - R01 DK50636/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - Hepatology JT - Hepatology (Baltimore, Md.) JID - 8302946 RN - 0 (Antineoplastic Agents, Phytogenic) RN - 0 (Pyrrolizidine Alkaloids) RN - 0 (RNA, Messenger) RN - 0 (Serum Albumin) RN - EC 3.2.1.52 (Acetylglucosaminidase) RN - XJ86XWL8IY (retrorsine) SB - IM MH - Acetylglucosaminidase/*deficiency MH - Animals MH - Antineoplastic Agents, Phytogenic/pharmacology MH - Cell Separation MH - *Cell Transplantation MH - Diet MH - In Situ Hybridization MH - Liver/*metabolism/pathology MH - Male MH - Pyrrolizidine Alkaloids/pharmacology MH - RNA, Messenger/biosynthesis MH - Rats MH - Rats, Inbred F344 MH - Rats, Sprague-Dawley MH - Serum Albumin/biosynthesis/deficiency/*metabolism EDAT- 1998/12/24 00:00 MHDA- 1998/12/24 00:01 CRDT- 1998/12/24 00:00 PHST- 1998/12/24 00:00 [pubmed] PHST- 1998/12/24 00:01 [medline] PHST- 1998/12/24 00:00 [entrez] AID - S0270913999000129 [pii] AID - 10.1002/hep.510290147 [doi] PST - ppublish SO - Hepatology. 1999 Jan;29(1):75-81. doi: 10.1002/hep.510290147.