Treatment of surgically induced acute liver failure by transplantation of conditionally immortalized hepatocytes

Junta Nakamura, Tomoyoshi Okamoto, Ingo K. Schumacher, Isao Tabei, Namita Roy Chowdhury, Jayanta Roy-Chowdhury, Ira J. Fox

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

The shortage of human livers available for hepatocyte isolation limits its clinical application. The availability of cloned, conditionally immortalized hepatocytes that could be grown in culture but would lose their transformed phenotype and provide metabolic support upon transplantation would greatly facilitate the treatment of acute liver failure. Toward this goal, we transduced isolated Lewis rat hepatocytes using a replication- defective recombinant retrovirus capable of transferring a gene encoding a thermolabile mutant simian virus 40 T antigen (SV40ts). The cloned, immortalized hepatocytes proliferate at 33°C. At the nonpermissive temperatures (37-39°C), they stop growing and exhibit characteristics of differentiated hepatocytes. These cells did not produce tumors when transplanted in mice with severe combined immunodeficiency disease or in syngeneic rats. To induce acute liver failure, Lewis rats were subjected to 90% hepatectomy (Hpx) and given 5% oral dextrose. All rats that did not undergo hepatocyte transplantation died within 96 hr. Fifty percent of rats that received intrasplenic injection of 10 x 106 primary Lewis rat hepatocytes (G2, n=6) or 10 x 106 SV40ts-conditionally immortalized (SV40ts- ci) hepatocytes (G3, n=8) 1 day before 90% hepatectomy survived, whereas 80% of rats that received an intraperitoneal injection of 200 x 106 primary Lewis rat hepatocytes (G4, n=10) or 200 x 106 SV40ts-ci hepatocytes (G5, n=10) on the day of hepatectomy survived. Survival after intraperitoneal injection of a cellular homogenate of 200 x 106 primary Lewis rat (G7, n=9) or SV40ts-ci hepatocytes (G8, n=10) on the day of Hpx was 33% and 40%, respectively, whereas survival after intraperitoneal injection of 200 x 106 Lewis rat bone marrow cells (G6, n=7) was 29%. Thus, transplanted, conditionally immortalized hepatocytes can be as effective as primary hepatocytes in supporting life during acute liver insufficiency. This work represents the first step in developing an hepatocyte cell line that would partially alleviate the organ-donor shortage and could be of potential clinical value.

Original languageEnglish (US)
Pages (from-to)1541-1547
Number of pages7
JournalTransplantation
Volume63
Issue number11
DOIs
StatePublished - Jun 15 1997

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Acute Liver Failure
Liver Transplantation
Hepatocytes
Therapeutics
Hepatectomy
Intraperitoneal Injections
Transplantation
Hepatic Insufficiency
Severe Combined Immunodeficiency
Simian virus 40
Survival
Viral Tumor Antigens
Retroviridae
Bone Marrow Cells

ASJC Scopus subject areas

  • Transplantation
  • Immunology

Cite this

Treatment of surgically induced acute liver failure by transplantation of conditionally immortalized hepatocytes. / Nakamura, Junta; Okamoto, Tomoyoshi; Schumacher, Ingo K.; Tabei, Isao; Chowdhury, Namita Roy; Roy-Chowdhury, Jayanta; Fox, Ira J.

In: Transplantation, Vol. 63, No. 11, 15.06.1997, p. 1541-1547.

Research output: Contribution to journalArticle

Nakamura, Junta ; Okamoto, Tomoyoshi ; Schumacher, Ingo K. ; Tabei, Isao ; Chowdhury, Namita Roy ; Roy-Chowdhury, Jayanta ; Fox, Ira J. / Treatment of surgically induced acute liver failure by transplantation of conditionally immortalized hepatocytes. In: Transplantation. 1997 ; Vol. 63, No. 11. pp. 1541-1547.
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