Title
Part of the multiple myeloma-associated microvessels is functionally connected to the systemic circulation: a study in the murine 5T33MM model Part of the multiple myeloma-associated microvessels is functionally connected to the systemic circulation: a study in the murine 5T33MM model
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
Berlin ,
Subject
Human medicine
Source (journal)
Virchows Archiv. - Berlin
Volume/pages
445(2004) :4 , p. 389-395
ISSN
0945-6317
ISI
000224615300010
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
It is now well established that angiogenesis in multiple myeloma (MM) is associated with poor prognosis. The exact function of the newly formed vessels in MM is, however, a matter of debate. It is believed that, in contrast to solid tumor growth, the bone marrow (BM) is a sufficiently vascularized organ to support expansion of the MM clone with no need for additional blood vessels. From this point of view, it could be that MM-associated angiogenesis is rather an epiphenomenon and that the newly formed microvessels form a chaotic network that does not contribute to the blood flow. We investigated whether these newly formed microvessels in MM are connected to the blood circulation. The intravenously injected ferritin 30 min prior to sacrifice was detected in 100% of the BM vessels of control mice. In MM-bearing mice, the ferritin tracer was found in 31% of the MM-associated vessels, indicating a connection with the peripheral blood circulation in these vessels. We conclude that, comparable to the situation in solid tumors, at least part of the tumor-associated microvessels in MM is functionally connected to the blood circulation and, therefore, can participate in the transport of nutrients and in the dissemination of MM cells.
E-info
https://repository.uantwerpen.be/docman/iruaauth/3a4efa/f6c8307.pdf
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