Oncotarget:新药HXR9为白血病治疗带来新希望!

2017-08-13 佚名 medicalxpress 

一种新药可能有助于治疗患有最具侵袭性的白血病形式的患者。 名为HXR9的候选药物通过防止癌细胞避免引起不健康和损伤的细胞死亡的自然过程(称为凋亡)起作用。

一种新药可能有助于治疗患有最具侵袭性的白血病形式的患者。

名为HXR9的候选药物通过防止癌细胞避免引起不健康和损伤的细胞死亡的自然过程(称为凋亡)起作用。

布拉德福德大学的研究人员发现该药物可用于治疗急性骨髓性白血病(AML),其在英国每年造成2500人死亡,全球每年造成265,000人死亡。

该药物靶向特定的一系列基因,称为HOX基因,其涉及控制细胞的快速生长。在成年人中,这些被关闭,但在癌症细胞中,他们可以重新开始。这有助于通过规避触发细胞凋亡的正常机制,使癌细胞不断生长和分裂,从而有效地使其成为不断繁殖的细胞。

领导研究的布拉德福德大学癌症治疗研究所所长理查德·摩根教授说,HXR9通过关闭HOX基因来剥夺这种能力的癌细胞。

他说:“急性骨髓性白血病是一种非常棘手的疾病,对许多治疗无效,这是一种新的治疗靶点,以前没有显示出对这种白血病的有效性。”

此前,摩根教授及其同事已经表明,HRX9可能被用于治疗前列腺癌等癌症肿瘤。目前他们正在准备进行临床试验,因为明年将会向未能对其他类型治疗作出反应的癌症患者提供HRX9的形式。

在最新的Oncotarget杂志发表的研究中,研究人员想看看是否可以使用相同的药物治疗难以治疗的血液癌症。

他们分析了269名AML患者的基因表达数据,发现一组HOX基因的活性与患者存活率之间的关联。

摩根教授及其团队随后对来自患有AML患者的癌细胞进行了HXR9测试,发现其导致癌细胞经历称为人工深层沉积的过程。

生殖细胞凋亡导致细胞爆炸并将其内容物喷入血液中,而不是简单地消化自身,正如细胞凋亡中发生的那样。根据摩根教授的说法,这增加了对癌细胞的后续免疫反应的可能性。

研究人员发现,当将HXR9与另一种药物 - 一种称为Ro31的蛋白激酶C抑制剂相结合时,其进一步增强了癌症生长的减少。

摩根大学教授说:“它可以很好地用于联合治疗,但最初的试验将作为单一疗法。
原始出处:
Kevin Harrington, Mohamed El-Tanani, Richard Morgan.et al.Inhibition of HOX/PBX dimer formation leads to necroptosis in acute myeloid leukemia cells.Oncotarget

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    2017-08-27 珙桐
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    2017-09-01 仁医06
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    2017-08-13 1ddf0692m34(暂无匿称)

    学习了,涨知识

    0

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    2017-08-13 lovetcm

    关键是要有药物针对,靶向进行治疗这才是关键

    0