ArticleScientific reports2016
Asymmetric distribution of Spalt in Drosophila wing squamous and columnar epithelia ensures correct cell morphogenesis.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- The Tbx6 Transcription Factor Dorsocross Mediates Dpp Signaling to RegulateInternational journal of molecular sciences · 2022Article
- The wing imaginal disc.Genetics · 2022Article
- Apico-basal cell compression regulates Lamin A/C levels in epithelial tissues.Nature communications · 2021Article
- The transcription factor Spalt and human homologue SALL4 induce cell invasion via the dMyc-JNK pathway inBiology open · 2020Article
- Setting Eyes on the Retinal Pigment Epithelium.Frontiers in cell and developmental biology · 2018Review
- spalt is functionally conserved in Locusta and Drosophila to promote wing growth.Scientific reports · 2017Article
- Fold formation at the compartment boundary of Drosophila wing requires Yki signaling to suppress JNK dependent apoptosis.Scientific reports · 2016Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Drosophila wing imaginal disc is a sac-like structure that is composed of two opposing cell layers: peripodial epithelium (PE, also known as squamous epithelia) and disc proper (DP, also known as pseudostratified columnar epithelia). The molecular mechanism of cell morphogenesis has been well studied in the DP but not in the PE. Although proper Dpp signalling activity is required for proper PE formation, the detailed regulation mechanism is poorly understood. Here, we found that the Dpp target gene sal is only expressed in DP cells, not in PE cells, although pMad is present in the PE. Increasing Dpp signalling activity cannot activate Sal in PE cells. The absence of Sal in the PE is essential for PE formation. The ectopic expression of sal in PE cells is sufficient to increase the PE cell height. Down-regulation of sal in the DP reduced DP cell height. We further demonstrated that the known PE cell height regulator Lines, which can convert PE into a DP cell fate, is mediated by sal mis-activation in PE because sal-RNAi and lines co-expression largely restores PE cell morphology. By revealing the microtubule distribution, we demonstrated that Lines- and Sal-heightened PE cells are morphologically similar to the intermediate cell with cuboidal morphology.
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