IL-6 controls leukemic multipotent progenitor cell fate and contributes to chronic myelogenous leukemia development.
IL-6 controls leukemic multipotent progenitor cell fate and contributes to chronic myelogenous leukemia development.
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DOI:
10.1016/j.ccr.2011.10.012
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发表时间:
2011-11-15
期刊:
影响因子:
50.3
通讯作者:
Passegué E
中科院分区:
文献类型:
--
作者:
Reynaud D;Pietras E;Barry-Holson K;Mir A;Binnewies M;Jeanne M;Sala-Torra O;Radich JP;Passegué E
Using a mouse model recapitulating the main features of human chronic myelogenous leukemia (CML), we uncover the hierarchy of leukemic stem and progenitor cells contributing to disease pathogenesis. We refine the characterization of CML leukemic stem cells (LSCs) to the most immature long-term hematopoietic stem cells (LT-HSCs) and identify some important molecular deregulations underlying their aberrant behavior. We find that CML multipotent progenitors (MPPs) exhibit an aberrant B-lymphoid potential but are redirected towards the myeloid lineage by the action of the pro-inflammatory cytokine IL-6. We show that BCR/ABL activity controls Il-6 expression thereby establishing a paracrine feedback loop that sustains CML development. These results describe how pro-inflammatory tumor environment affects leukemic progenitor cell fate and contributes to CML pathogenesis.
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