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首页> 外文期刊>Cancer Cell >HDAC and PI3K Antagonists Cooperate to Inhibit Growth of MYC-Driven Medulloblastoma
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HDAC and PI3K Antagonists Cooperate to Inhibit Growth of MYC-Driven Medulloblastoma

机译:HDAC和PI3K拮抗剂合作抑制MYC驱动的髓母细胞瘤的生长。

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摘要

Medulloblastoma (MB) is a highly malignant pediatric brain tumor. Despite aggressive therapy, many patients succumb to the disease, and survivors experience severe side effects from treatment. MYC-driven MB has a particularly poor prognosis and would greatly benefit from more effective therapies. We used an animal model of MYC-driven MB to screen for drugs that decrease viability of tumor cells. Among the most effective compounds were histone deacetylase inhibitors (HDACIs). HDACIs potently inhibit survival of MYC-driven MB cells in vitro, in part by inducing expression of the FOXO1 tumor suppressor gene. HDACIs also synergize with phosphatidylinositol 3-kinase inhibitors to inhibit tumor growth in vivo. These studies identify an effective combination therapy for the most aggressive form of MB.
机译:髓母细胞瘤(MB)是高度恶性的小儿脑肿瘤。尽管进行了积极的治疗,许多患者还是屈服于该疾病,幸存者会从治疗中遭受严重的副作用。 MYC驱动的MB预后特别差,可以从更有效的治疗中受益。我们使用了MYC驱动的MB动物模型来筛选可降低肿瘤细胞生存力的药物。其中最有效的化合物是组蛋白脱乙酰基酶抑制剂(HDACIs)。 HDACIs可能部分地通过诱导FOXO1肿瘤抑制基因的表达来有效抑制MYC驱动的MB细胞的体外存活。 HDACI还与磷脂酰肌醇3激酶抑制剂协同作用,以抑制体内肿瘤的生长。这些研究确定了针对最具攻击性的MB的有效联合疗法。

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