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Hydroxypropyl-β-cyclodextrin attenuates the epithelial-to-mesenchymal transition via endoplasmic reticulum stress in MDA-MB-231 breast cancer cells

The epithelial-to-mesenchymal transition (EMT) has been reported to serve vital roles in regulating the progress of cancer metastasis. In addition, lipid rafts enriched in sphingolipids and cholesterol serve important roles in physiological and biochemical processes as a signaling platform. The pres...

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Autores principales: Wu, Yifan, Zhao, Yiyang, He, Xuanhong, He, Zhiqiang, Wang, Tian, Wan, Linxi, Chen, Lai, Yan, Nianlong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: D.A. Spandidos 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6896369/
https://www.ncbi.nlm.nih.gov/pubmed/31746388
http://dx.doi.org/10.3892/mmr.2019.10802
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author Wu, Yifan
Zhao, Yiyang
He, Xuanhong
He, Zhiqiang
Wang, Tian
Wan, Linxi
Chen, Lai
Yan, Nianlong
author_facet Wu, Yifan
Zhao, Yiyang
He, Xuanhong
He, Zhiqiang
Wang, Tian
Wan, Linxi
Chen, Lai
Yan, Nianlong
author_sort Wu, Yifan
collection PubMed
description The epithelial-to-mesenchymal transition (EMT) has been reported to serve vital roles in regulating the progress of cancer metastasis. In addition, lipid rafts enriched in sphingolipids and cholesterol serve important roles in physiological and biochemical processes as a signaling platform. The present study explored the effects of hydroxypropyl-β-cyclodextrin (HP-β-CD), a cholesterol-depleting agent of lipid rafts, on the transforming growth factor (TGF)-β/Smad signaling pathway and endoplasmic reticulum (ER) stress in mediating EMT in MDA-MB-231 breast cancer cells. HP-β-CD treatment inhibited TGF-β1-induced EMT, based on increased expression of E-cadherin and decreased expression of vimentin. HP-β-CD reduced the expression of the TGF receptor TβRI and blocked the phosphorylation of Smad2. In addition, HP-β-CD increased the expression of ER stress-related proteins (binding immunoglobulin protein and activating transcription factor 6), but TGF-β1 could reverse these changes. Sodium 4-phenylbutyrate, an inhibitor of ER stress, suppressed these effects of HP-β-CD on EMT and TGF-β/Smad signaling pathway inhibition in breast cancer cells. Thus, HP-β-CD can block the TGF-β/Smad signaling pathway via diminishing the expression of TβRI which helps to activate ER stress and attenuate EMT in MDA-MB-231 cells, highlighting a potential target of lipid rafts for breast cancer treatment.
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spelling pubmed-68963692019-12-09 Hydroxypropyl-β-cyclodextrin attenuates the epithelial-to-mesenchymal transition via endoplasmic reticulum stress in MDA-MB-231 breast cancer cells Wu, Yifan Zhao, Yiyang He, Xuanhong He, Zhiqiang Wang, Tian Wan, Linxi Chen, Lai Yan, Nianlong Mol Med Rep Articles The epithelial-to-mesenchymal transition (EMT) has been reported to serve vital roles in regulating the progress of cancer metastasis. In addition, lipid rafts enriched in sphingolipids and cholesterol serve important roles in physiological and biochemical processes as a signaling platform. The present study explored the effects of hydroxypropyl-β-cyclodextrin (HP-β-CD), a cholesterol-depleting agent of lipid rafts, on the transforming growth factor (TGF)-β/Smad signaling pathway and endoplasmic reticulum (ER) stress in mediating EMT in MDA-MB-231 breast cancer cells. HP-β-CD treatment inhibited TGF-β1-induced EMT, based on increased expression of E-cadherin and decreased expression of vimentin. HP-β-CD reduced the expression of the TGF receptor TβRI and blocked the phosphorylation of Smad2. In addition, HP-β-CD increased the expression of ER stress-related proteins (binding immunoglobulin protein and activating transcription factor 6), but TGF-β1 could reverse these changes. Sodium 4-phenylbutyrate, an inhibitor of ER stress, suppressed these effects of HP-β-CD on EMT and TGF-β/Smad signaling pathway inhibition in breast cancer cells. Thus, HP-β-CD can block the TGF-β/Smad signaling pathway via diminishing the expression of TβRI which helps to activate ER stress and attenuate EMT in MDA-MB-231 cells, highlighting a potential target of lipid rafts for breast cancer treatment. D.A. Spandidos 2020-01 2019-11-06 /pmc/articles/PMC6896369/ /pubmed/31746388 http://dx.doi.org/10.3892/mmr.2019.10802 Text en Copyright: © Wu et al. This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License (https://creativecommons.org/licenses/by-nc-nd/4.0/) , which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
spellingShingle Articles
Wu, Yifan
Zhao, Yiyang
He, Xuanhong
He, Zhiqiang
Wang, Tian
Wan, Linxi
Chen, Lai
Yan, Nianlong
Hydroxypropyl-β-cyclodextrin attenuates the epithelial-to-mesenchymal transition via endoplasmic reticulum stress in MDA-MB-231 breast cancer cells
title Hydroxypropyl-β-cyclodextrin attenuates the epithelial-to-mesenchymal transition via endoplasmic reticulum stress in MDA-MB-231 breast cancer cells
title_full Hydroxypropyl-β-cyclodextrin attenuates the epithelial-to-mesenchymal transition via endoplasmic reticulum stress in MDA-MB-231 breast cancer cells
title_fullStr Hydroxypropyl-β-cyclodextrin attenuates the epithelial-to-mesenchymal transition via endoplasmic reticulum stress in MDA-MB-231 breast cancer cells
title_full_unstemmed Hydroxypropyl-β-cyclodextrin attenuates the epithelial-to-mesenchymal transition via endoplasmic reticulum stress in MDA-MB-231 breast cancer cells
title_short Hydroxypropyl-β-cyclodextrin attenuates the epithelial-to-mesenchymal transition via endoplasmic reticulum stress in MDA-MB-231 breast cancer cells
title_sort hydroxypropyl-β-cyclodextrin attenuates the epithelial-to-mesenchymal transition via endoplasmic reticulum stress in mda-mb-231 breast cancer cells
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6896369/
https://www.ncbi.nlm.nih.gov/pubmed/31746388
http://dx.doi.org/10.3892/mmr.2019.10802
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