The Journal of Experimental Medicine
Torrey Pines Biolabs
  Home | Help | Feedback | Subscriptions | Archive | Search | Table of Contents

Published 4 April 2005. doi:10.1084/jem.20041896
Rockefeller University Press, 0022-1007 $8.00
JEM, Volume 201, Number 7, 1089-1099
This Article
Right arrow Full Text
Right arrow Full Text (PDF, 5411K)
Right arrow PPT slides of all figures
Right arrow Alert me when this article is cited
Right arrow Citation Map
Services
Right arrow Email this article
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new content in the JEM
Right arrow Download to citation manager
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Hirakawa, S.
Right arrow Articles by Detmar, M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Hirakawa, S.
Right arrow Articles by Detmar, M.
Related Collections
Right arrowRelated Article
Social Bookmarking
 Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

ARTICLE

VEGF-A induces tumor and sentinel lymph node lymphangiogenesis and promotes lymphatic metastasis

Satoshi Hirakawa1, Shohta Kodama2, Rainer Kunstfeld1, Kentaro Kajiya1,3, Lawrence F. Brown4, and Michael Detmar1,3

1 Cutaneous Biology Research Center, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129
2 Department of Immunobiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129
3 Institute of Pharmaceutical Sciences, Swiss Federal Institute of Technology Zurich, CH-8093 Zurich, Switzerland
4 Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215

CORRESPONDENCE Michael Detmar: michael.detmar{at}pharma.ethz.ch

The mechanisms of tumor metastasis to the sentinel lymph nodes are poorly understood. Vascular endothelial growth factor (VEGF)-A plays a principle role in tumor progression and angiogenesis; however, its role in tumor-associated lymphangiogenesis and lymphatic metastasis has remained unclear. We created transgenic mice that overexpress VEGF-A and green fluorescent protein specifically in the skin, and subjected them to a standard chemically-induced skin carcinogenesis regimen. We found that VEGF-A not only strongly promotes multistep skin carcinogenesis, but also induces active proliferation of VEGF receptor-2–expressing tumor-associated lymphatic vessels as well as tumor metastasis to the sentinel and distant lymph nodes. The lymphangiogenic activity of VEGF-A–expressing tumor cells was maintained within metastasis-containing lymph nodes. The most surprising finding of our study was that even before metastasizing, VEGF-A–overexpressing primary tumors induced sentinel lymph node lymphangiogenesis. This suggests that primary tumors might begin preparing their future metastatic site by producing lymphangiogenic factors that mediate their efficient transport to sentinel lymph nodes. This newly identified mechanism of inducing lymph node lymphangiogenesis likely contributes to tumor metastasis, and therefore, represents a new therapeutic target for advanced cancer and/or for the prevention of metastasis.


Abbreviations used: K14, keratin 14; BrdU, 5-bromo-2'deoxyuridine; DMBA, 7,12-dimethylbenzanthracene; LEC, lymphatic endothelial cell; LYVE-1, lymphatic vessel endothelial hyaluronan receptor 1; SCC, squamous cell carcinoma; VEGF, vascular endothelial growth factor; VEGFR, VEGF receptor.


Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?

Related Article

Paving the way to metastasis
Heather L. Van Epps
J. Exp. Med. 2005 201: 1022-1023. [Full Text] [PDF]



This article has been cited by other articles:



  Home | Help | Feedback | Subscriptions | Archive | Search
TABLE OF CONTENTS