Cells must express components of the planar cell polarity system and extracellular matrix to support cytonemes

Drosophila dorsal air sac development depends on Decapentaplegic (Dpp) and Fibroblast growth factor (FGF) proteins produced by the wing imaginal disc and transported by cytonemes to the air sac primordium (ASP). Dpp and FGF signaling in the ASP was dependent on components of the planar cell polarity...

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Main Authors: Hai Huang, Thomas B Kornberg
Format: Article
Language:English
Published: eLife Sciences Publications Ltd 2016-09-01
Series:eLife
Subjects:
Online Access:https://elifesciences.org/articles/18979
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author Hai Huang
Thomas B Kornberg
author_facet Hai Huang
Thomas B Kornberg
author_sort Hai Huang
collection DOAJ
description Drosophila dorsal air sac development depends on Decapentaplegic (Dpp) and Fibroblast growth factor (FGF) proteins produced by the wing imaginal disc and transported by cytonemes to the air sac primordium (ASP). Dpp and FGF signaling in the ASP was dependent on components of the planar cell polarity (PCP) system in the disc, and neither Dpp- nor FGF-receiving cytonemes extended over mutant disc cells that lacked them. ASP cytonemes normally navigate through extracellular matrix (ECM) composed of collagen, laminin, Dally and Dally-like (Dlp) proteins that are stratified in layers over the disc cells. However, ECM over PCP mutant cells had reduced levels of laminin, Dally and Dlp, and whereas Dpp-receiving ASP cytonemes navigated in the Dally layer and required Dally (but not Dlp), FGF-receiving ASP cytonemes navigated in the Dlp layer, requiring Dlp (but not Dally). These findings suggest that cytonemes interact directly and specifically with proteins in the stratified ECM.
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spelling doaj.art-b7d841a518cc463a9bbbe727352be4f32022-12-22T02:05:28ZengeLife Sciences Publications LtdeLife2050-084X2016-09-01510.7554/eLife.18979Cells must express components of the planar cell polarity system and extracellular matrix to support cytonemesHai Huang0Thomas B Kornberg1https://orcid.org/0000-0002-6879-7066Cardiovascular Research Institute, University of California, San Francisco, San Francisco, United StatesCardiovascular Research Institute, University of California, San Francisco, San Francisco, United StatesDrosophila dorsal air sac development depends on Decapentaplegic (Dpp) and Fibroblast growth factor (FGF) proteins produced by the wing imaginal disc and transported by cytonemes to the air sac primordium (ASP). Dpp and FGF signaling in the ASP was dependent on components of the planar cell polarity (PCP) system in the disc, and neither Dpp- nor FGF-receiving cytonemes extended over mutant disc cells that lacked them. ASP cytonemes normally navigate through extracellular matrix (ECM) composed of collagen, laminin, Dally and Dally-like (Dlp) proteins that are stratified in layers over the disc cells. However, ECM over PCP mutant cells had reduced levels of laminin, Dally and Dlp, and whereas Dpp-receiving ASP cytonemes navigated in the Dally layer and required Dally (but not Dlp), FGF-receiving ASP cytonemes navigated in the Dlp layer, requiring Dlp (but not Dally). These findings suggest that cytonemes interact directly and specifically with proteins in the stratified ECM.https://elifesciences.org/articles/18979cytonemeHeparan sulfate proteoglycanplanar cell polarityextracellular matrix
spellingShingle Hai Huang
Thomas B Kornberg
Cells must express components of the planar cell polarity system and extracellular matrix to support cytonemes
eLife
cytoneme
Heparan sulfate proteoglycan
planar cell polarity
extracellular matrix
title Cells must express components of the planar cell polarity system and extracellular matrix to support cytonemes
title_full Cells must express components of the planar cell polarity system and extracellular matrix to support cytonemes
title_fullStr Cells must express components of the planar cell polarity system and extracellular matrix to support cytonemes
title_full_unstemmed Cells must express components of the planar cell polarity system and extracellular matrix to support cytonemes
title_short Cells must express components of the planar cell polarity system and extracellular matrix to support cytonemes
title_sort cells must express components of the planar cell polarity system and extracellular matrix to support cytonemes
topic cytoneme
Heparan sulfate proteoglycan
planar cell polarity
extracellular matrix
url https://elifesciences.org/articles/18979
work_keys_str_mv AT haihuang cellsmustexpresscomponentsoftheplanarcellpolaritysystemandextracellularmatrixtosupportcytonemes
AT thomasbkornberg cellsmustexpresscomponentsoftheplanarcellpolaritysystemandextracellularmatrixtosupportcytonemes