Host Matrix Modulation by Tumor Exosomes Promotes Motility and Invasiveness
Exosomes are important intercellular communicators, where tumor exosomes (TEX) severely influence hematopoiesis and premetastatic organ cells. With the extracellular matrix (ECM) being an essential constituent of non-transformed tissues and tumors, we asked whether exosomes from a metastatic rat tu...
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doaj-65200b6f219b40abb3d071ac4150944f2020-11-25T00:30:58ZengElsevierNeoplasia: An International Journal for Oncology Research1476-55861522-80022013-08-0115887588710.1593/neo.13786Host Matrix Modulation by Tumor Exosomes Promotes Motility and InvasivenessWei Mu0Sanyukta Rana1Margot Zöller2Department of Tumor Cell Biology, University Hospital of Surgery, Heidelberg, GermanyDepartment of Tumor Cell Biology, University Hospital of Surgery, Heidelberg, GermanyDepartment of Tumor Cell Biology, University Hospital of Surgery, Heidelberg, Germany Exosomes are important intercellular communicators, where tumor exosomes (TEX) severely influence hematopoiesis and premetastatic organ cells. With the extracellular matrix (ECM) being an essential constituent of non-transformed tissues and tumors, we asked whether exosomes from a metastatic rat tumor also affect the organization of the ECM and whether this has consequences on host and tumor cell motility. TEX bind to individual components of the ECM, the preferential partner depending on the exosomes' adhesion molecule profile such that high CD44 expression is accompanied by hyaluronic acid binding and high α6β4 expression by laminin (LN) 332 binding, which findings were confirmed by antibody blocking. TEX can bind to the tumor matrix already during exosome delivery but also come in contact with distinct organ matrices. Being rich in proteases, TEX modulate the ECM as demonstrated for degradation of collagens, LNs, and fibronectin. Matrix degradation by TEX has severe consequences on tumor and host cell adhesion, motility, and invasiveness. By ECM degradation, TEX also promote host cell proliferation and apoptosis resistance. Taken together, the host tissue ECM modulation by TEX is an important factor in the cross talk between a tumor and the host including premetastatic niche preparation and the recruitment of hematopoietic cells. Reorganization of the ECM by exosomes likely also contributes to organogenesis, physiological and pathologic angiogenesis, wound healing, and clotting after vessel disruption. http://www.sciencedirect.com/science/article/pii/S1476558613800930 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Wei Mu Sanyukta Rana Margot Zöller |
spellingShingle |
Wei Mu Sanyukta Rana Margot Zöller Host Matrix Modulation by Tumor Exosomes Promotes Motility and Invasiveness Neoplasia: An International Journal for Oncology Research |
author_facet |
Wei Mu Sanyukta Rana Margot Zöller |
author_sort |
Wei Mu |
title |
Host Matrix Modulation by Tumor Exosomes Promotes Motility and Invasiveness |
title_short |
Host Matrix Modulation by Tumor Exosomes Promotes Motility and Invasiveness |
title_full |
Host Matrix Modulation by Tumor Exosomes Promotes Motility and Invasiveness |
title_fullStr |
Host Matrix Modulation by Tumor Exosomes Promotes Motility and Invasiveness |
title_full_unstemmed |
Host Matrix Modulation by Tumor Exosomes Promotes Motility and Invasiveness |
title_sort |
host matrix modulation by tumor exosomes promotes motility and invasiveness |
publisher |
Elsevier |
series |
Neoplasia: An International Journal for Oncology Research |
issn |
1476-5586 1522-8002 |
publishDate |
2013-08-01 |
description |
Exosomes are important intercellular communicators, where tumor exosomes (TEX) severely influence hematopoiesis and premetastatic organ cells. With the extracellular matrix (ECM) being an essential constituent of non-transformed tissues and tumors, we asked whether exosomes from a metastatic rat tumor also affect the organization of the ECM and whether this has consequences on host and tumor cell motility. TEX bind to individual components of the ECM, the preferential partner depending on the exosomes' adhesion molecule profile such that high CD44 expression is accompanied by hyaluronic acid binding and high α6β4 expression by laminin (LN) 332 binding, which findings were confirmed by antibody blocking. TEX can bind to the tumor matrix already during exosome delivery but also come in contact with distinct organ matrices. Being rich in proteases, TEX modulate the ECM as demonstrated for degradation of collagens, LNs, and fibronectin. Matrix degradation by TEX has severe consequences on tumor and host cell adhesion, motility, and invasiveness. By ECM degradation, TEX also promote host cell proliferation and apoptosis resistance. Taken together, the host tissue ECM modulation by TEX is an important factor in the cross talk between a tumor and the host including premetastatic niche preparation and the recruitment of hematopoietic cells. Reorganization of the ECM by exosomes likely also contributes to organogenesis, physiological and pathologic angiogenesis, wound healing, and clotting after vessel disruption.
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url |
http://www.sciencedirect.com/science/article/pii/S1476558613800930 |
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