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2014 ; 164
(6
): 767-78
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Advances in understanding the leukaemia microenvironment
#MMPMID24405087
Tabe Y
; Konopleva M
Br J Haematol
2014[Mar]; 164
(6
): 767-78
PMID24405087
show ga
Dynamic interactions between leukaemic cells and cells of the bone marrow are a
feature of haematological malignancies. Two distinct microenvironmental niches in
the bone marrow, the 'osteoblastic (endosteal)' and 'vascular' niches, provide a
sanctuary for subpopulations of leukaemic cells to evade chemotherapy-induced
death and allow acquisition of drug resistance. Key components of the bone marrow
microenvironment as a home for normal haematopoietic stem cells and the leukaemia
stem cell niches, and the molecular pathways critical for
microenvironment/leukaemia interactions via cytokines, chemokines and adhesion
molecules as well as hypoxic conditions, are described in this review. Finally,
the genetic abnormalities of leukaemia-associated stroma are discussed. Further
understanding of the contribution of the bone marrow niche to the process of
leukaemogenesis may provide new targets that allow destruction of leukaemia stem
cells without adversely affecting normal stem cell self-renewal.