Neutrophil Extracellular Traps (NETs) Promote Pro-Metastatic Phenotype in Human Breast Cancer Cells through Epithelial–Mesenchymal Transition

Neutrophil extracellular traps (NETs) have been associated with several steps of tumor progression, including primary growth and metastasis. One of the key features for the acquisition of the metastatic ability is the epithelial–mesenchymal transition (EMT), a complex cellular program. In this study...

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Main Authors: Karina Martins-Cardoso, Vitor H. Almeida, Kayo M. Bagri, Maria Isabel Doria Rossi, Claudia S. Mermelstein, Sandra König, Robson Q. Monteiro
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/12/6/1542
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author Karina Martins-Cardoso
Vitor H. Almeida
Kayo M. Bagri
Maria Isabel Doria Rossi
Claudia S. Mermelstein
Sandra König
Robson Q. Monteiro
author_facet Karina Martins-Cardoso
Vitor H. Almeida
Kayo M. Bagri
Maria Isabel Doria Rossi
Claudia S. Mermelstein
Sandra König
Robson Q. Monteiro
author_sort Karina Martins-Cardoso
collection DOAJ
description Neutrophil extracellular traps (NETs) have been associated with several steps of tumor progression, including primary growth and metastasis. One of the key features for the acquisition of the metastatic ability is the epithelial–mesenchymal transition (EMT), a complex cellular program. In this study, we evaluated the ability of isolated NETs in modulating the pro-metastatic phenotype of human breast cancer cells. Tumor cells were treated with isolated NETs and then samples were generated for cell migration, quantitative RT-PCR, western blotting, immunofluorescence, and flow cytometry assays. RNA-seq data from The Cancer Genome Atlas (TCGA) database were assessed. NETs changed the typical epithelial morphology of MCF7 cells into a mesenchymal phenotype, a process that was accompanied by enhanced migratory properties. Additional EMT traits were observed: increased expression of N-cadherin and fibronectin, while the E-cadherin expression was repressed. Notably, NETs positively regulated the gene expression of several factors linked to the pro-inflammatory and pro-metastatic properties. Analyses of TCGA data showed that samples from breast cancer patients exhibit a significant correlation between pro-tumoral and neutrophil signature gene expression, including several EMT and pro-metastatic factors. Therefore, NETs drive pro-metastatic phenotype in human breast cancer cells through the activation of the EMT program.
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spelling doaj.art-8047e1dea6d5400cbd910d39669302262023-11-20T03:34:05ZengMDPI AGCancers2072-66942020-06-01126154210.3390/cancers12061542Neutrophil Extracellular Traps (NETs) Promote Pro-Metastatic Phenotype in Human Breast Cancer Cells through Epithelial–Mesenchymal TransitionKarina Martins-Cardoso0Vitor H. Almeida1Kayo M. Bagri2Maria Isabel Doria Rossi3Claudia S. Mermelstein4Sandra König5Robson Q. Monteiro6Institute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro 21941 590, BrazilInstitute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro 21941 590, BrazilInstitute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro 21941 590, BrazilInstitute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro 21941 590, BrazilInstitute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro 21941 590, BrazilInstitute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro 21941 590, BrazilInstitute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro 21941 590, BrazilNeutrophil extracellular traps (NETs) have been associated with several steps of tumor progression, including primary growth and metastasis. One of the key features for the acquisition of the metastatic ability is the epithelial–mesenchymal transition (EMT), a complex cellular program. In this study, we evaluated the ability of isolated NETs in modulating the pro-metastatic phenotype of human breast cancer cells. Tumor cells were treated with isolated NETs and then samples were generated for cell migration, quantitative RT-PCR, western blotting, immunofluorescence, and flow cytometry assays. RNA-seq data from The Cancer Genome Atlas (TCGA) database were assessed. NETs changed the typical epithelial morphology of MCF7 cells into a mesenchymal phenotype, a process that was accompanied by enhanced migratory properties. Additional EMT traits were observed: increased expression of N-cadherin and fibronectin, while the E-cadherin expression was repressed. Notably, NETs positively regulated the gene expression of several factors linked to the pro-inflammatory and pro-metastatic properties. Analyses of TCGA data showed that samples from breast cancer patients exhibit a significant correlation between pro-tumoral and neutrophil signature gene expression, including several EMT and pro-metastatic factors. Therefore, NETs drive pro-metastatic phenotype in human breast cancer cells through the activation of the EMT program.https://www.mdpi.com/2072-6694/12/6/1542epithelial–mesenchymal transitionneutrophil extracellular trapsbreast cancermetastasis
spellingShingle Karina Martins-Cardoso
Vitor H. Almeida
Kayo M. Bagri
Maria Isabel Doria Rossi
Claudia S. Mermelstein
Sandra König
Robson Q. Monteiro
Neutrophil Extracellular Traps (NETs) Promote Pro-Metastatic Phenotype in Human Breast Cancer Cells through Epithelial–Mesenchymal Transition
Cancers
epithelial–mesenchymal transition
neutrophil extracellular traps
breast cancer
metastasis
title Neutrophil Extracellular Traps (NETs) Promote Pro-Metastatic Phenotype in Human Breast Cancer Cells through Epithelial–Mesenchymal Transition
title_full Neutrophil Extracellular Traps (NETs) Promote Pro-Metastatic Phenotype in Human Breast Cancer Cells through Epithelial–Mesenchymal Transition
title_fullStr Neutrophil Extracellular Traps (NETs) Promote Pro-Metastatic Phenotype in Human Breast Cancer Cells through Epithelial–Mesenchymal Transition
title_full_unstemmed Neutrophil Extracellular Traps (NETs) Promote Pro-Metastatic Phenotype in Human Breast Cancer Cells through Epithelial–Mesenchymal Transition
title_short Neutrophil Extracellular Traps (NETs) Promote Pro-Metastatic Phenotype in Human Breast Cancer Cells through Epithelial–Mesenchymal Transition
title_sort neutrophil extracellular traps nets promote pro metastatic phenotype in human breast cancer cells through epithelial mesenchymal transition
topic epithelial–mesenchymal transition
neutrophil extracellular traps
breast cancer
metastasis
url https://www.mdpi.com/2072-6694/12/6/1542
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