Fetal membranes act as a barrier for adenoviruses: gene transfer into exocoelomic cavity of rat fetuses does not affect cells in the fetus.

Abstract:

OBJECTIVES:In utero gene therapy has a potential to correct genetic disorders before the first clinical symptoms appear. Our aim was to examine whether the exocoelomic cavity between amniotic and chorionic membranes offers a minimally invasive route for gene transfer to the fetus during early pregnancy. STUDY DESIGN:We injected lacZ-adenovirus (4 x 10(9) pfu) during open surgery into the exocoelomic cavity of rat fetuses (n=50) and analyzed the fetuses and rat dams for transgene expression with X-gal staining and polymerase chain reaction. RESULTS:Giant cells around Reichert's membrane, the outermost extraembryonic membrane in rodents, were transduced; but no transduction was observed in the cells of the fetuses or rat dams. CONCLUSION:In rodents, the exocoelomic cavity does not offer a route for gene transfer into the fetus. It was concluded that fetal membranes act as a barrier that prevents adenoviral particles from passing between embryonic cavities.

journal_name

Am J Obstet Gynecol

authors

Laurema A,Vanamo K,Heikkilä A,Riekkinen M,Heinonen S,Ylä-Herttuala S

doi

10.1016/j.ajog.2003.07.010

subject

Has Abstract

pub_date

2004-01-01 00:00:00

pages

264-7

issue

1

eissn

0002-9378

issn

1097-6868

pii

S0002937803009840

journal_volume

190

pub_type

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