Photoreceptor-specific activity of the human interphotoreceptor retinoid-binding protein (IRBP) promoter in transgenic mice

Takahiko Yokoyama, Gregory I Liou, Ruth B Caldwell, Paul A. Overbeek

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

In order to define the cellular specificity of the interphotoreceptor retinoid-binding protein (IRBP) promoter in the retina, we linked the human IRBP promoter to the β-galactosidase (lacZ) gene and made five lines of transgenic mice. In three of the five transgenic mouse lines, retinas showed positive staining upon incubation with 5-bromo-4-chloro-3-indolyl-β-d-galactoside (X-gal). Mice from one line (OVE278B) showed positive X-gal staining throughout the retina except for the most peripheral regions. Interestingly, the staining was heterogeneous throughout the retina. Heavily stained regions were interspersed with lightly stained areas. Mice in two other lines showed highly mosaic X-gal staining patterns. Histological examination demonstrated that staining was confined to photoreceptor cells in all three expressing families. Furthermore, electron microscopy showed that the promoter is active in both rod and cone cells. Our results demonstrate that the human IRBP promoter can be used to obtain photoreceptor-specific gene expression in transgenic mice.

Original languageEnglish (US)
Pages (from-to)225-233
Number of pages9
JournalExperimental eye research
Volume55
Issue number2
DOIs
StatePublished - Jan 1 1992

Fingerprint

Transgenic Mice
Retina
Staining and Labeling
Galactosidases
Galactosides
Photoreceptor Cells
Vertebrate Photoreceptor Cells
Lac Operon
Electron Microscopy
interstitial retinol-binding protein
Gene Expression
5-bromo-4-chloro-3-indolyl beta-galactoside

Keywords

  • interphotoreceptor retinoid-binding protein
  • lacZ
  • photoreceptor
  • transgenic mice

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

Cite this

Photoreceptor-specific activity of the human interphotoreceptor retinoid-binding protein (IRBP) promoter in transgenic mice. / Yokoyama, Takahiko; Liou, Gregory I; Caldwell, Ruth B; Overbeek, Paul A.

In: Experimental eye research, Vol. 55, No. 2, 01.01.1992, p. 225-233.

Research output: Contribution to journalArticle

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