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Overexpression of heparanase attenuated TGF-beta-stimulated signaling in tumor cells
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab. (Biokemi och molekylär cellbiologi)
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab. GlycoNovo Technol Co Ltd, Shanghai, Peoples R China..
Technion, Fac Med, Canc & Vasc Biol Res Ctr Rappaport, Haifa, Israel..
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Biochemistry and Microbiology. Uppsala University, Science for Life Laboratory, SciLifeLab.
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2017 (English)In: FEBS Open Bio, E-ISSN 2211-5463, Vol. 7, no 3, 405-413 p.Article in journal (Refereed) Published
Abstract [en]

Heparan sulfate (HS) mediates the activity of various growth factors including TGF-beta. Heparanase is an endo-glucuronidase that specifically cleaves and modifies HS structure. In this study, we examined the effect of heparanase expression on TGF-beta 1-dependent signaling activities. We found that overexpression of heparanase in human tumor cells (i.e., Fadu pharyngeal carcinoma, MCF7 breast carcinoma) attenuated TGF-beta 1-stimulated Smad phosphorylation and led to a slower cell proliferation. TGF-beta 1-stimulated Akt and Erk phosphorylation was also affected in the heparanase overexpression cells. This effect involved the enzymatic activity of heparanase, as overexpression of mutant inactive heparanase did not affect TGF-beta 1 signaling activity. Analysis of HS isolated from Fadu cells revealed an increase in sulfation of the HS that had a rapid turnover in cells overexpressing heparanase. It appears that the structural alterations of HS affect the ability of TGF-beta 1 to signal via its receptors and elicit a growth response. Given that heparanase expression promotes tumor growth in most cancers, this finding highlights a crosstalk between heparanase, HS, and TGF-beta 1 function in tumorigenesis.

Place, publisher, year, edition, pages
2017. Vol. 7, no 3, 405-413 p.
Keyword [en]
cancer cell, heparan sulfate, heparanase signaling, TGF-beta
National Category
Biochemistry and Molecular Biology Medical Biotechnology (with a focus on Cell Biology (including Stem Cell Biology), Molecular Biology, Microbiology, Biochemistry or Biopharmacy) Cancer and Oncology
Identifiers
URN: urn:nbn:se:uu:diva-322852DOI: 10.1002/2211-5463.12190ISI: 000400298500011PubMedID: 28286736OAI: oai:DiVA.org:uu-322852DiVA: diva2:1106253
Funder
Swedish Research Council, 2015-02595Swedish Research Council, K2013-66X-14936-10-5Swedish Cancer Society, 150815Swedish Cancer Society, 150834
Available from: 2017-06-07 Created: 2017-06-07 Last updated: 2017-06-07Bibliographically approved

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