Chitinase-like proteins promoting tumorigenesis through disruption of cell polarity via enlarged endosomal vesicles

IntroductionChitinase-like proteins (CLPs) are associated with tissue-remodeling and inflammation but also with several disorders, including fibrosis, atherosclerosis, allergies, and cancer. However, CLP’s role in tumors is far from clear. MethodsHere, we utilize Drosophila melanogaster and molecula...

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Main Authors: Dilan Khalili, Martin Kunc, Sarah Herbrich, Anna M. Müller, Ulrich Theopold
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-04-01
Series:Frontiers in Oncology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fonc.2023.1170122/full
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author Dilan Khalili
Martin Kunc
Sarah Herbrich
Anna M. Müller
Ulrich Theopold
author_facet Dilan Khalili
Martin Kunc
Sarah Herbrich
Anna M. Müller
Ulrich Theopold
author_sort Dilan Khalili
collection DOAJ
description IntroductionChitinase-like proteins (CLPs) are associated with tissue-remodeling and inflammation but also with several disorders, including fibrosis, atherosclerosis, allergies, and cancer. However, CLP’s role in tumors is far from clear. MethodsHere, we utilize Drosophila melanogaster and molecular genetics to investigate the function of CLPs (imaginal disc growth factors; Idgf’s) in RasV12 dysplastic salivary glands. Results and discussionWe find one of the Idgf’s members, Idgf3, is transcriptionally induced in a JNK-dependent manner via a positive feedback loop mediated by reactive oxygen species (ROS). Moreover, Idgf3 accumulates in enlarged endosomal vesicles (EnVs) that promote tumor progression by disrupting cytoskeletal organization. The process is mediated via the downstream component, aSpectrin, which localizes to the EnVs. Our data provide new insight into CLP function in tumors and identifies specific targets for tumor control.
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spelling doaj.art-52fc893ffaa1407981178991d5c60bff2023-04-28T04:59:08ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2023-04-011310.3389/fonc.2023.11701221170122Chitinase-like proteins promoting tumorigenesis through disruption of cell polarity via enlarged endosomal vesiclesDilan KhaliliMartin KuncSarah HerbrichAnna M. MüllerUlrich TheopoldIntroductionChitinase-like proteins (CLPs) are associated with tissue-remodeling and inflammation but also with several disorders, including fibrosis, atherosclerosis, allergies, and cancer. However, CLP’s role in tumors is far from clear. MethodsHere, we utilize Drosophila melanogaster and molecular genetics to investigate the function of CLPs (imaginal disc growth factors; Idgf’s) in RasV12 dysplastic salivary glands. Results and discussionWe find one of the Idgf’s members, Idgf3, is transcriptionally induced in a JNK-dependent manner via a positive feedback loop mediated by reactive oxygen species (ROS). Moreover, Idgf3 accumulates in enlarged endosomal vesicles (EnVs) that promote tumor progression by disrupting cytoskeletal organization. The process is mediated via the downstream component, aSpectrin, which localizes to the EnVs. Our data provide new insight into CLP function in tumors and identifies specific targets for tumor control.https://www.frontiersin.org/articles/10.3389/fonc.2023.1170122/fullDrosophilaimmunitytumorendosomal vesiclessalivary glandschitinase
spellingShingle Dilan Khalili
Martin Kunc
Sarah Herbrich
Anna M. Müller
Ulrich Theopold
Chitinase-like proteins promoting tumorigenesis through disruption of cell polarity via enlarged endosomal vesicles
Frontiers in Oncology
Drosophila
immunity
tumor
endosomal vesicles
salivary glands
chitinase
title Chitinase-like proteins promoting tumorigenesis through disruption of cell polarity via enlarged endosomal vesicles
title_full Chitinase-like proteins promoting tumorigenesis through disruption of cell polarity via enlarged endosomal vesicles
title_fullStr Chitinase-like proteins promoting tumorigenesis through disruption of cell polarity via enlarged endosomal vesicles
title_full_unstemmed Chitinase-like proteins promoting tumorigenesis through disruption of cell polarity via enlarged endosomal vesicles
title_short Chitinase-like proteins promoting tumorigenesis through disruption of cell polarity via enlarged endosomal vesicles
title_sort chitinase like proteins promoting tumorigenesis through disruption of cell polarity via enlarged endosomal vesicles
topic Drosophila
immunity
tumor
endosomal vesicles
salivary glands
chitinase
url https://www.frontiersin.org/articles/10.3389/fonc.2023.1170122/full
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