The Agrin/Perlecan-Related Protein Eyes Shut Is Essential for Epithelial Lumen Formation in the Drosophila Retina

Nicole Husain, Milena Pellikka, Henry Hong, Tsveta Klimentova, Kwang-Min Choe, Thomas R. Clandinin, Ulrich Tepass

Research output: Contribution to journalArticle

85 Citations (Scopus)

Abstract

The formation of epithelial lumina is a fundamental process in animal development. Each ommatidium of the Drosophila retina forms an epithelial lumen, the interrhabdomeral space, which has a critical function in vision as it optically isolates individual photoreceptor cells. Ommatidia containing an interrhabdomeral space have evolved from ancestral insect eyes that lack this lumen, as seen, for example, in bees. In a genetic screen, we identified eyes shut (eys) as a gene that is essential for the formation of matrix-filled interrhabdomeral space. Eys is closely related to the proteoglycans agrin and perlecan and secreted by photoreceptor cells into the interrhabdomeral space. The honeybee ortholog of eys is not expressed in photoreceptors, raising the possibility that recruitment of eys expression has made an important contribution to insect eye evolution. Our findings show that the secretion of a proteoglycan into the apical matrix is critical for the formation of epithelial lumina in the fly retina.

Original languageEnglish
Pages (from-to)483-493
Number of pages11
JournalDevelopmental Cell
Volume11
Issue number4
DOIs
Publication statusPublished - 2006 Oct 1

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Eye Proteins
Agrin
Proteoglycans
Drosophila
Retina
Photoreceptor Cells
Animals
Genes
Insects
Bees
Essential Genes
Diptera
perlecan

All Science Journal Classification (ASJC) codes

  • Developmental Biology

Cite this

Husain, Nicole ; Pellikka, Milena ; Hong, Henry ; Klimentova, Tsveta ; Choe, Kwang-Min ; Clandinin, Thomas R. ; Tepass, Ulrich. / The Agrin/Perlecan-Related Protein Eyes Shut Is Essential for Epithelial Lumen Formation in the Drosophila Retina. In: Developmental Cell. 2006 ; Vol. 11, No. 4. pp. 483-493.
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The Agrin/Perlecan-Related Protein Eyes Shut Is Essential for Epithelial Lumen Formation in the Drosophila Retina. / Husain, Nicole; Pellikka, Milena; Hong, Henry; Klimentova, Tsveta; Choe, Kwang-Min; Clandinin, Thomas R.; Tepass, Ulrich.

In: Developmental Cell, Vol. 11, No. 4, 01.10.2006, p. 483-493.

Research output: Contribution to journalArticle

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