CD98-Mediated Adhesive Signaling Enables the Establishment and Propagation of Acute Myelogenous Leukemia.

CD98-Mediated Adhesive Signaling Enables the Establishment and Propagation of Acute Myelogenous Leukemia.
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DOI:
10.1016/j.ccell.2016.10.003
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发表时间:
2016-11-14
期刊:
影响因子:
50.3
通讯作者:
Reya T
Reya T
中科院分区:
医学1区
文献类型:
--
作者:
Bajaj J;Konuma T;Lytle NK;Kwon HY;Ablack JN;Cantor JM;Rizzieri D;Chuah C;Oehler VG;Broome EH;Ball ED;van der Horst EH;Ginsberg MH;Reya T

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急性髓细胞白血病(AML)是一种侵袭性疾病,常伴有耐药性和复发.为了改善治疗策略,更好地了解AML进展的机制至关重要。在这里,我们表明,整合素结合糖蛋白CD98在AML中起着核心作用。CD98通过驱动白血病细胞与其微环境的接合并维持白血病干细胞来促进AML增殖和致死性。此外,人源化抗CD98抗体的递送阻断了患者来源的AML的生长,突出了该途径在人类疾病中的重要性。这些研究结果表明,微环境相互作用是AML的关键调节因子,用CD98抗体等抑制剂破坏这些信号可能是成人和儿童AML的一种有价值的治疗方法。
Acute myelogenous leukemia (AML) is an aggressive disease associated with drug resistance and relapse. To improve therapeutic strategies, it is critical to better understand the mechanisms that underlie AML progression. Here we show that the integrin binding glycoprotein CD98 plays a central role in AML. CD98 promotes AML propagation and lethality by driving engagement of leukemia cells with their microenvironment and maintaining leukemic stem cells. Further, delivery of a humanized anti-CD98 antibody blocks growth of patient-derived AML, highlighting the importance of this pathway in human disease. These findings indicate that microenvironmental interactions are key regulators of AML and that disrupting these signals with inhibitors such as CD98-antibodies may be a valuable therapeutic approach for adults and children with this disease.
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