Basal localization of MT1-MMP is essential for epithelial cell morphogenesis in 3D collagen matrix

The membrane-anchored collagenase membrane type 1 matrix metalloprotease (MT1-MMP) has been shown to play an essential role during epithelial tubulogenesis in 3D collagen matrices; however, its regulation during tubulogenesis is not understood. Here, we report that degradation of collagen in polariz...

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Egile Nagusiak: Weaver, SA, Wolters, B, Ito, N, Woskowicz, A, Kaneko, K, Shitomi, Y, Seiki, M, Itoh, Y
Formatua: Journal article
Hizkuntza:English
Argitaratua: Company of Biologists 2014
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author Weaver, SA
Wolters, B
Ito, N
Woskowicz, A
Kaneko, K
Shitomi, Y
Seiki, M
Itoh, Y
author_facet Weaver, SA
Wolters, B
Ito, N
Woskowicz, A
Kaneko, K
Shitomi, Y
Seiki, M
Itoh, Y
author_sort Weaver, SA
collection OXFORD
description The membrane-anchored collagenase membrane type 1 matrix metalloprotease (MT1-MMP) has been shown to play an essential role during epithelial tubulogenesis in 3D collagen matrices; however, its regulation during tubulogenesis is not understood. Here, we report that degradation of collagen in polarized epithelial cells is post-translationally regulated by changing the localization of MT1-MMP from the apical to the basal surface. MT1-MMP predominantly localizes at the apical surface in inert polarized epithelial cells, whereas treatment with HGF induced basal localization of MT1-MMP followed by collagen degradation. The basal localization of MT1-MMP requires the ectodomains of the enzyme because deletion of the MT-loop region or the hemopexin domain inhibited basal localization of the enzyme. TGFβ is a well-known inhibitor of tubulogenesis and our data indicate that its mechanism of inhibition is, at least in part, due to inhibition of MT1-MMP localization to the basal surface. Interestingly, however, the effect of TGFβ was found to be bi-phasic: at high doses it effectively inhibited basal localization of MT1-MMP, whereas at lower doses tubulogenesis and basal localization of MT1-MMP was promoted. Taken together, these data indicate that basal localization of MT1-MMP is a key factor promoting the degradation of extracellular matrix by polarized epithelial cells, and that this is an essential part of epithelial morphogenesis in 3D collagen.
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spelling oxford-uuid:65f2c45c-9eca-40d8-9d4b-61e7282b7a932022-03-29T17:17:03ZBasal localization of MT1-MMP is essential for epithelial cell morphogenesis in 3D collagen matrixJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:65f2c45c-9eca-40d8-9d4b-61e7282b7a93EnglishSymplectic Elements at OxfordCompany of Biologists2014Weaver, SAWolters, BIto, NWoskowicz, AKaneko, KShitomi, YSeiki, MItoh, YThe membrane-anchored collagenase membrane type 1 matrix metalloprotease (MT1-MMP) has been shown to play an essential role during epithelial tubulogenesis in 3D collagen matrices; however, its regulation during tubulogenesis is not understood. Here, we report that degradation of collagen in polarized epithelial cells is post-translationally regulated by changing the localization of MT1-MMP from the apical to the basal surface. MT1-MMP predominantly localizes at the apical surface in inert polarized epithelial cells, whereas treatment with HGF induced basal localization of MT1-MMP followed by collagen degradation. The basal localization of MT1-MMP requires the ectodomains of the enzyme because deletion of the MT-loop region or the hemopexin domain inhibited basal localization of the enzyme. TGFβ is a well-known inhibitor of tubulogenesis and our data indicate that its mechanism of inhibition is, at least in part, due to inhibition of MT1-MMP localization to the basal surface. Interestingly, however, the effect of TGFβ was found to be bi-phasic: at high doses it effectively inhibited basal localization of MT1-MMP, whereas at lower doses tubulogenesis and basal localization of MT1-MMP was promoted. Taken together, these data indicate that basal localization of MT1-MMP is a key factor promoting the degradation of extracellular matrix by polarized epithelial cells, and that this is an essential part of epithelial morphogenesis in 3D collagen.
spellingShingle Weaver, SA
Wolters, B
Ito, N
Woskowicz, A
Kaneko, K
Shitomi, Y
Seiki, M
Itoh, Y
Basal localization of MT1-MMP is essential for epithelial cell morphogenesis in 3D collagen matrix
title Basal localization of MT1-MMP is essential for epithelial cell morphogenesis in 3D collagen matrix
title_full Basal localization of MT1-MMP is essential for epithelial cell morphogenesis in 3D collagen matrix
title_fullStr Basal localization of MT1-MMP is essential for epithelial cell morphogenesis in 3D collagen matrix
title_full_unstemmed Basal localization of MT1-MMP is essential for epithelial cell morphogenesis in 3D collagen matrix
title_short Basal localization of MT1-MMP is essential for epithelial cell morphogenesis in 3D collagen matrix
title_sort basal localization of mt1 mmp is essential for epithelial cell morphogenesis in 3d collagen matrix
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