Summary:
Objective: To summarise recent knowledge about lymphangiogenesis, markers of the lymphatic
endothelium and their importance to the tumor dissemination.
Design: A literature review.
Setting: Department of Gynecology and Obstetrics, Medical Faculty, Palacký University, University
Hospital, Olomouc.
Abstracts: Clinicopathological data suggest that the lymphatics are an initial route for the spread
of solid tumors. Detection of sentinel lymph nodes by biopsy provides signifi cant information for
staging and designing therapeutic regimens. The role of angiogenesis (formation of new blood
vessels) in facilitating the growth of tumors has been well established, but the presence of lymphatic
vessels and the relevance of lymphangiogenesis (formation of new lymphatics) to tumor
spread are less clear. Growth factors involved in lymphangiogenesis during embryogenesis have
been recently identifi ed and showed to be able to induce formation of intratumoral lymphatics
and thus facilitate metastatic spread to lymph nodes. The development of approaches to block
tumor lymphangiogenesis and treat lymphedema would benefi t from the availability of markers
specifi c for lymphatic endothelium.
Key words:
lmyphangiogenesis, lymphatics, tumor metastasizing
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