Abstract：
BACKGROUND:The development of effective gene transfer in utero will provide alternative approaches to the treatment of genetic disorders. For many disorders, the fetal liver and peritoneum are important target tissues. Our goals were to compare the tissue sites and duration of transferred gene expression after intraperitoneal (i.p.) or intrahepatic adenoviral-mediated gene transfer in utero in the developing murine fetus. METHODS:Day 15 CD-1 fetuses were injected intrahepatically or intraperitoneally with recombinant adenoviruses containing the luciferase or beta-galactosidase reporter gene. Tissue levels of luciferase were quantitated, or tissues were examined for X-gal staining. RESULTS:Luciferase expression was observed in multiple fetal tissues (including brain, intestine, liver, and lung) and persisted up to 32 days after intrahepatic delivery. Significant hepatic tropism was demonstrated. CONCLUSIONS:Intrahepatic and intraperitoneal injection in utero results in transduction of multiple tissues in the developing murine fetus. Transuterine injection of fetal mice via intrahepatic and intraperitoneal routes provides a valuable model for assessing the efficacy of gene delivery vectors in the prenatal treatment of genetic disorders. These studies demonstrate that hepatic and intraperitoneal gene transfer to the developing murine fetus is feasible and may provide therapeutic levels of proteins during fetal development.
journal_name
Surgeryjournal_title
Surgeryauthors
Lipshutz GS,Flebbe-Rehwaldt L,Gaensler KMsubject
Has Abstractpub_date
1999-08-01 00:00:00pages
171-7issue
2eissn
0039-6060issn
1532-7361pii
S0039-6060(99)70151-0journal_volume
126pub_type
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