Stress signaling in breast cancer cells induces matrix components that promote chemoresistant metastasis

Abstract Metastatic progression remains a major burden for cancer patients and is associated with eventual resistance to prevailing therapies such as chemotherapy. Here, we reveal how chemotherapy induces an extracellular matrix (ECM), wound healing, and stem cell network in cancer cells via the c‐J...

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Main Authors: Jacob Insua‐Rodríguez, Maren Pein, Tsunaki Hongu, Jasmin Meier, Arnaud Descot, Camille M Lowy, Etienne De Braekeleer, Hans‐Peter Sinn, Saskia Spaich, Marc Sütterlin, Andreas Schneeweiss, Thordur Oskarsson
Format: Article
Language:English
Published: Springer Nature 2018-09-01
Series:EMBO Molecular Medicine
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Online Access:https://doi.org/10.15252/emmm.201809003
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author Jacob Insua‐Rodríguez
Maren Pein
Tsunaki Hongu
Jasmin Meier
Arnaud Descot
Camille M Lowy
Etienne De Braekeleer
Hans‐Peter Sinn
Saskia Spaich
Marc Sütterlin
Andreas Schneeweiss
Thordur Oskarsson
author_facet Jacob Insua‐Rodríguez
Maren Pein
Tsunaki Hongu
Jasmin Meier
Arnaud Descot
Camille M Lowy
Etienne De Braekeleer
Hans‐Peter Sinn
Saskia Spaich
Marc Sütterlin
Andreas Schneeweiss
Thordur Oskarsson
author_sort Jacob Insua‐Rodríguez
collection DOAJ
description Abstract Metastatic progression remains a major burden for cancer patients and is associated with eventual resistance to prevailing therapies such as chemotherapy. Here, we reveal how chemotherapy induces an extracellular matrix (ECM), wound healing, and stem cell network in cancer cells via the c‐Jun N‐terminal kinase (JNK) pathway, leading to reduced therapeutic efficacy. We find that elevated JNK activity in cancer cells is linked to poor clinical outcome in breast cancer patients and is critical for tumor initiation and metastasis in xenograft mouse models of breast cancer. We show that JNK signaling enhances expression of the ECM and stem cell niche components osteopontin, also called secreted phosphoprotein 1 (SPP1), and tenascin C (TNC), that promote lung metastasis. We demonstrate that both SPP1 and TNC are direct targets of the c‐Jun transcription factor. Exposure to multiple chemotherapies further exploits this JNK‐mediated axis to confer treatment resistance. Importantly, JNK inhibition or disruption of SPP1 or TNC expression sensitizes experimental mammary tumors and metastases to chemotherapy, thus providing insights to consider for future treatment strategies against metastatic breast cancer.
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spelling doaj-art-b247d332148a419e955b465ec8e5f91c2025-08-20T03:43:01ZengSpringer NatureEMBO Molecular Medicine1757-46761757-46842018-09-01101012110.15252/emmm.201809003Stress signaling in breast cancer cells induces matrix components that promote chemoresistant metastasisJacob Insua‐Rodríguez0Maren Pein1Tsunaki Hongu2Jasmin Meier3Arnaud Descot4Camille M Lowy5Etienne De Braekeleer6Hans‐Peter Sinn7Saskia Spaich8Marc Sütterlin9Andreas Schneeweiss10Thordur Oskarsson11Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH)Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH)Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH)Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH)Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH)Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH)Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH)Institute of Pathology, University of HeidelbergDepartment of Obstetrics and Gynecology, University Medical Centre Mannheim, Heidelberg UniversityDepartment of Obstetrics and Gynecology, University Medical Centre Mannheim, Heidelberg UniversityNational Center for Tumor Diseases—NCTHeidelberg Institute for Stem Cell Technology and Experimental Medicine (HI‐STEM gGmbH)Abstract Metastatic progression remains a major burden for cancer patients and is associated with eventual resistance to prevailing therapies such as chemotherapy. Here, we reveal how chemotherapy induces an extracellular matrix (ECM), wound healing, and stem cell network in cancer cells via the c‐Jun N‐terminal kinase (JNK) pathway, leading to reduced therapeutic efficacy. We find that elevated JNK activity in cancer cells is linked to poor clinical outcome in breast cancer patients and is critical for tumor initiation and metastasis in xenograft mouse models of breast cancer. We show that JNK signaling enhances expression of the ECM and stem cell niche components osteopontin, also called secreted phosphoprotein 1 (SPP1), and tenascin C (TNC), that promote lung metastasis. We demonstrate that both SPP1 and TNC are direct targets of the c‐Jun transcription factor. Exposure to multiple chemotherapies further exploits this JNK‐mediated axis to confer treatment resistance. Importantly, JNK inhibition or disruption of SPP1 or TNC expression sensitizes experimental mammary tumors and metastases to chemotherapy, thus providing insights to consider for future treatment strategies against metastatic breast cancer.https://doi.org/10.15252/emmm.201809003breast cancer metastasischemotherapy resistanceextracellular matrixstem cell nichestress
spellingShingle Jacob Insua‐Rodríguez
Maren Pein
Tsunaki Hongu
Jasmin Meier
Arnaud Descot
Camille M Lowy
Etienne De Braekeleer
Hans‐Peter Sinn
Saskia Spaich
Marc Sütterlin
Andreas Schneeweiss
Thordur Oskarsson
Stress signaling in breast cancer cells induces matrix components that promote chemoresistant metastasis
EMBO Molecular Medicine
breast cancer metastasis
chemotherapy resistance
extracellular matrix
stem cell niche
stress
title Stress signaling in breast cancer cells induces matrix components that promote chemoresistant metastasis
title_full Stress signaling in breast cancer cells induces matrix components that promote chemoresistant metastasis
title_fullStr Stress signaling in breast cancer cells induces matrix components that promote chemoresistant metastasis
title_full_unstemmed Stress signaling in breast cancer cells induces matrix components that promote chemoresistant metastasis
title_short Stress signaling in breast cancer cells induces matrix components that promote chemoresistant metastasis
title_sort stress signaling in breast cancer cells induces matrix components that promote chemoresistant metastasis
topic breast cancer metastasis
chemotherapy resistance
extracellular matrix
stem cell niche
stress
url https://doi.org/10.15252/emmm.201809003
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