A targetable GATA2-IGF2 axis confers aggressiveness in lethal prostate cancer.

A targetable GATA2-IGF2 axis confers aggressiveness in lethal prostate cancer.
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可靶向的GATA2-IGF2轴赋予致命前列腺癌的侵略性。

DOI:
10.1016/j.ccell.2014.11.013
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发表时间:
2015-02-09
期刊:
影响因子:
50.3
通讯作者:
Domingo-Domenech J
Domingo-Domenech J
中科院分区:
医学1区
文献类型:
--
作者:
Vidal SJ;Rodriguez-Bravo V;Quinn SA;Rodriguez-Barrueco R;Lujambio A;Williams E;Sun X;de la Iglesia-Vicente J;Lee A;Readhead B;Chen X;Galsky M;Esteve B;Petrylak DP;Dudley JT;Rabadan R;Silva JM;Hoshida Y;Lowe SW;Cordon-Cardo C;Domingo-Domenech J

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阐明致命性前列腺癌侵袭性的决定因素可能会刺激改善临床结果的治疗策略。我们使用实验模型和临床数据库来确定 GATA2 作为化疗耐药性和致瘤性的调节剂。从机制上讲,生长激素 IGF2 的直接上调成为 GATA2 调节的攻击特性的中介。 IGF2 反过来激活 IGF1R 和 INSR 以及下游聚激酶程序。该轴的特征促使采取联合策略,通过双重 IGF1R/INSR 抑制恢复化疗的功效并提高临床前模型的生存率。这些研究揭示了致命性前列腺癌中的 GATA2-IGF2 侵袭性轴,并确定了这种具有挑战性的疾病的治疗机会。
Elucidating the determinants of aggressiveness in lethal prostate cancer may stimulate therapeutic strategies that improve clinical outcomes. We used experimental models and clinical databases to identify GATA2 as a regulator of chemotherapy resistance and tumorigenicity in this context. Mechanistically, direct upregulation of the growth hormone IGF2 emerged as a mediator of the aggressive properties regulated by GATA2. IGF2 in turn activated IGF1R and INSR as well as a downstream polykinase program. The characterization of this axis prompted a combination strategy whereby dual IGF1R/INSR inhibition restored the efficacy of chemotherapy and improved survival in preclinical models. These studies reveal a GATA2-IGF2 aggressiveness axis in lethal prostate cancer and identify a therapeutic opportunity in this challenging disease.
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