Transplanted hepatocytes proliferate differently after CCl4 treatment and hepatocyte growth factor infusion

Sanjeev Gupta, Pankaj Rajvanshi, Emma Aragona, Chang Don Lee, Purnachandra R. Yerneni, Robert D. Burk

Research output: Contribution to journalArticle

64 Scopus citations

Abstract

To understand regulation of transplanted hepatocyte proliferation in the normal liver, we used genetically marked rat or mouse cells. Hosts were subjected to liver injury by carbon tetrachloride (CCl4), to liver regeneration by a two-thirds partial hepatectomy, and to hepatocellular DNA synthesis by infusion of hepatocyte growth factor for comparative analysis. Transplanted hepatocytes were documented to integrate in periportal areas of the liver. In response to CCl4 treatments after cell transplantation, the transplanted hepatocyte mass increased incrementally, with the kinetics and magnitude of DNA synthesis being similar to those of host hepatocytes. In contrast, when cells were transplanted 24 h after CCl4 administration, transplanted hepatocytes appeared to be injured and most cells were rapidly cleared. When hepatocyte growth factor was infused into the portal circulation either subsequent to or before cell transplantation and engraftment, transplanted cell mass did not increase, although DNA synthesis rates increased in cultured primary hepatocytes as well as in intact mouse and rat livers. These data suggested that procedures causing selective ablation of host hepatocytes will be most effective in inducing transplanted cell proliferation in the normal liver. The number of transplanted hepatocytes was not increased in the liver by hepatocyte growth factor administration. Repopulation of the liver with genetically marked hepatocytes can provide effective reporters for studying liver growth control in the intact animal.

Original languageEnglish (US)
Pages (from-to)G629-G638
JournalAmerican Journal of Physiology - Gastrointestinal and Liver Physiology
Volume276
Issue number3 39-3
StatePublished - Mar 1 1999

    Fingerprint

Keywords

  • Carbon tetrachloride
  • Hepatocyte transplantation
  • Liver regeneration

ASJC Scopus subject areas

  • Physiology
  • Hepatology
  • Gastroenterology
  • Physiology (medical)

Cite this