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Preexisting lymphatic endothelium but not endothelial progenitor cells are essential for tumor lymphangiogenesis and lymphatic metastasis.
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2004 (English)In: Cancer Research, ISSN 0008-5472, E-ISSN 1538-7445, Vol. 64, no 11Article in journal (Refereed) Published
Abstract [en]

Endothelial progenitor cells have been shown to contribute to angiogenesis in various tumor models. Here, we have studied the relative contributions of bone marrow (BM)-derived endothelial progenitors and pre-existing lymphatic vessels to tumor lymphangiogenesis. We did not find significant incorporation of genetically marked BM-derived cells in lymphatic vessels during tumor- or vascular endothelial growth factor C-induced lymphangiogenesis. The degree of tumor lymphangiogenesis correlated with lymphatic vessel density in the peritumoral area, and despite tumor lymphangiogenesis, lymphatic metastasis failed to occur in gene-targeted vascular endothelial growth factor C(+/-) mice that have hypoplasia of the lymphatic network. Our data demonstrate that during tumor lymphangiogenesis and cancer cell dissemination via the lymphatics, the newly formed lymphatic vessels sprout from the pre-existing local lymphatic network with little if any incorporation of BM-derived endothelial progenitor cells.

Place, publisher, year, edition, pages
2004. Vol. 64, no 11
National Category
Basic Medicine
URN: urn:nbn:se:uu:diva-287164DOI: 10.1158/0008-5472.CAN-04-0088PubMedID: 15172976OAI: oai:DiVA.org:uu-287164DiVA: diva2:922275
Available from: 2016-04-22 Created: 2016-04-22 Last updated: 2016-04-22

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