Targeting Myelogenous Leukemia Stem Cells: Role of the Circulation.

Unlike stem cells from solid tumors, the stem cells which initiate myelogenous leukemias arise in marrow, an organ with a unique circulation which allows ready access of leukemia cells, including leukemia stem cells, to the vasculature. This poses unique problems in the targeting of leukemic stem c...

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Main Author: Jane eLiesveld
Format: Article
Language:English
Published: Frontiers Media S.A. 2012-08-01
Series:Frontiers in Oncology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fonc.2012.00086/full
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author Jane eLiesveld
author_facet Jane eLiesveld
author_sort Jane eLiesveld
collection DOAJ
description Unlike stem cells from solid tumors, the stem cells which initiate myelogenous leukemias arise in marrow, an organ with a unique circulation which allows ready access of leukemia cells, including leukemia stem cells, to the vasculature. This poses unique problems in the targeting of leukemic stem cells since these cells are found circulating in the majority of leukemia cases at diagnosis and are usually not detectable during remission states. Because most cases of leukemia relapse, it is suggested that leukemia stem cells remain quiescent in the marrow until they eventually proliferate and circulate again. This indicates that effective targeting of leukemia stem cells must occur not only in peripheral circulation but in the micro-circulation of the marrow. Targeting such interactions may overcome cell adhesion mediated treatment resistance, other multi-drug resistance mechanisms, and opportunities for clonal evolution in the marrow environment. Targeting selectins and integrins, signal transduction mediators, and chemokine/cytokine networks in the marrow micro-circulation may aid in abrogating leukemia initiating stem cells which contribute to disease relapse. Leukemia stem cells also possess surface antigen profiles and signal transduction activation profiles which may allow differential targeting as compared with normal hematopoietic stem cells.
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spelling doaj.art-b0f1ad4494824b9d86405b437a41eea42022-12-21T18:15:32ZengFrontiers Media S.A.Frontiers in Oncology2234-943X2012-08-01210.3389/fonc.2012.0008631232Targeting Myelogenous Leukemia Stem Cells: Role of the Circulation.Jane eLiesveld0University of RochesterUnlike stem cells from solid tumors, the stem cells which initiate myelogenous leukemias arise in marrow, an organ with a unique circulation which allows ready access of leukemia cells, including leukemia stem cells, to the vasculature. This poses unique problems in the targeting of leukemic stem cells since these cells are found circulating in the majority of leukemia cases at diagnosis and are usually not detectable during remission states. Because most cases of leukemia relapse, it is suggested that leukemia stem cells remain quiescent in the marrow until they eventually proliferate and circulate again. This indicates that effective targeting of leukemia stem cells must occur not only in peripheral circulation but in the micro-circulation of the marrow. Targeting such interactions may overcome cell adhesion mediated treatment resistance, other multi-drug resistance mechanisms, and opportunities for clonal evolution in the marrow environment. Targeting selectins and integrins, signal transduction mediators, and chemokine/cytokine networks in the marrow micro-circulation may aid in abrogating leukemia initiating stem cells which contribute to disease relapse. Leukemia stem cells also possess surface antigen profiles and signal transduction activation profiles which may allow differential targeting as compared with normal hematopoietic stem cells.http://journal.frontiersin.org/Journal/10.3389/fonc.2012.00086/fullSignal TransductiontargetingantibodyLeukemia Stem CellsVascular interactions
spellingShingle Jane eLiesveld
Targeting Myelogenous Leukemia Stem Cells: Role of the Circulation.
Frontiers in Oncology
Signal Transduction
targeting
antibody
Leukemia Stem Cells
Vascular interactions
title Targeting Myelogenous Leukemia Stem Cells: Role of the Circulation.
title_full Targeting Myelogenous Leukemia Stem Cells: Role of the Circulation.
title_fullStr Targeting Myelogenous Leukemia Stem Cells: Role of the Circulation.
title_full_unstemmed Targeting Myelogenous Leukemia Stem Cells: Role of the Circulation.
title_short Targeting Myelogenous Leukemia Stem Cells: Role of the Circulation.
title_sort targeting myelogenous leukemia stem cells role of the circulation
topic Signal Transduction
targeting
antibody
Leukemia Stem Cells
Vascular interactions
url http://journal.frontiersin.org/Journal/10.3389/fonc.2012.00086/full
work_keys_str_mv AT janeeliesveld targetingmyelogenousleukemiastemcellsroleofthecirculation