Molecular conjugate vectors mediate efficient gene transfer into gastrointestinal epithelial cells.

Abstract:

:Transfer of genes to the gastrointestinal epithelium would be advantageous from investigational and therapeutic standpoints. Efficient transfer of DNA to the intestinal epithelial cells, however, has been problematic with conventional viral and nonviral vectors. As an alternative, we have utilized molecular conjugate vectors to transfer DNA to enterocytes via the receptor-mediated endocytosis pathway. We were able to achieve efficient transfection of transformed (Caco2 cells) and nontransformed gastrointestinal cells derived from neonatal piglets utilizing molecular conjugate vectors. Analysis of heterologous gene expression revealed that enterocytes could serve as a secretory cellular source of alpha 1-antitrypsin and factor IX. Transient expression of heterologous DNA persisted for up to 2 weeks following transfection. Our observations suggest that molecular conjugate vectors may represent a promising strategy in the transfer of genes to cells of the gastrointestinal tract.

journal_name

Cancer Gene Ther

journal_title

Cancer gene therapy

authors

Batra RK,Berschneider H,Curiel DT

subject

Has Abstract

pub_date

1994-09-01 00:00:00

pages

185-92

issue

3

eissn

0929-1903

issn

1476-5500

journal_volume

1

pub_type

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