Surfactant protein A-producing cells in human fetal lung are good targets for recombinant adenovirus-mediated gene transfer.

Abstract:

:Local delivery of Escherichia coli beta-galactosidase gene (beta-gal) to surfactant protein-A (SP-A)-producing cells by a replication-defective recombinant adenovirus (AdCMV.beta-gal) was tested in human 8-12-wk-old fetal lung explants cultured in Waymouth's medium. In contrast to uninfected explants, direct addition of 0.8-1.6 x 10(6) plaque-forming units of AdCMV.beta-gal resulted in beta-galactosidase (beta-Gal)-specific staining of the pulmonary epithelium. SP-A localization by indirect immunofluorescence showed positive specific staining of the beta-Gal+ lung epithelial cells, demonstrating that recombinant-defective adenoviruses efficiently transfer reporter genes to fetal lung SP-A+ cells. The reporter gene expression in SPA+ cells persisted for more than 1 mo. No apparent alteration of morphology, phenotype, and growth was observed. The in vitro human lung model described may be useful for testing DNA constructs for vector-mediated gene therapy, as an approach to the treatment of congenital defects and neonatal disorders, such as respiratory distress syndrome and bronchopulmonary dysplasia.

journal_name

Pediatr Res

journal_title

Pediatric research

authors

Messina E,Muhlhauser J,Giuliano M,Pandolfi A,Morgese G,Procopio A

doi

10.1203/00006450-199607000-00024

subject

Has Abstract

pub_date

1996-07-01 00:00:00

pages

142-7

issue

1

eissn

0031-3998

issn

1530-0447

journal_volume

40

pub_type

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