Modulated expression of secreted frizzled-related proteins in human retinal degeneration.

Abstract:

:Inherited retinal degenerations such as retinitis pigmentosa (RP) are characterized by progressive loss of photoreceptors, apparently by apoptosis, and our recent report of increased secreted Frizzled-related protein-2 (SFRP2) in RP retinas suggests altered Wnt signalling may be a component of the degenerative process. The present study shows that levels of SFRPI, SFRP3 and SFRP5 mRNAs are also abnormal in RP, giving rise to idiosyncratic expression patterns. In highly degenerative retinas, the SFRP proteins localize mainly to the inner limiting membrane, but in a well-preserved retina SFRPI and SFRP5 are notably localized to the surviving photoreceptors. Together with increased c-jun mRNA expression in all cases examined, these results support the notion that disruptions of Wnt network signalling are involved retinal neurodegeneration.

journal_name

Neuroreport

journal_title

Neuroreport

authors

Jones SE,Jomary C,Grist J,Stewart HJ,Neal MJ

doi

10.1097/00001756-200012180-00012

subject

Has Abstract

pub_date

2000-12-18 00:00:00

pages

3963-7

issue

18

eissn

0959-4965

issn

1473-558X

journal_volume

11

pub_type

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