Fate of DNA targeted to hepatocytes by asialoglycoprotein polylysine conjugates.

G. W. Wu, J. R. Chowdhury, V. R. Bommineni, S. K. Basu, C. H. Wu, N. R. Chowdhury

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

The data indicate that partial hepatectomy results in a decrease in degradation of targeted DNA. This appears to be due to an inhibition of the endocytotic pathway shortly after hepatectomy and is associated with the accumulation of targeted DNA within a population of light endosomal vesicles. It is likely that these vesicles serve as a reservoir from which targeted DNA gradually escapes and can be found in the nucleus. The DNA targeted to liver is capable of expressing the marker gene, and the DNA in the vesicles is transfection competent, suggesting that a substantial portion is intact. Overall, the receptor-mediated delivery system is highly efficient in transporting foreign DNA to liver cells. Partial hepatectomy and the ensuing cellular events provide a means of inhibiting the degradative portion of the endocytotic pathway. Pharmacological agents that can mimic the cellular processes that occur after partial hepatectomy may be useful in increasing the duration of foreign gene expression without the trauma of surgery.

Original languageEnglish (US)
Pages (from-to)211-217
Number of pages7
JournalProceedings of the Association of American Physicians
Volume107
Issue number2
StatePublished - Jul 1995
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)

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