Oncogenesis:口服联用药物靶向肾细胞肿瘤的分子靶标

2020-06-11 AlexYang MedSci原创

由于治疗失败,转移肾细胞肿瘤(mRCC)患者的5年生存率小于12%。能够克服对有效药物(比如sorafenib(SF))抗性的治疗策略能够改善mRCC患者中的治疗结果。通过UDP-葡萄糖醛酸转移酶-1

由于治疗失败,转移肾细胞肿瘤(mRCC)患者的5年生存率小于12%。能够克服对有效药物(比如sorafenib(SF))抗性的治疗策略能够改善mRCC患者中的治疗结果。通过UDP-葡萄糖醛酸转移酶-1A9(A9)介导的葡萄糖醛酸化作用能够对SF进行终端生物转化,从而使得SF失活。

最近,有研究人员在一个临床群体和TCGA数据库中发现,A9转录本和/或蛋白水平在RCC样本中大程度提高,并且能够预测转移和总生存。这表明A9水平的提高是SF治疗失败的机制。4-甲基伞形花酮(MU),一种利胆剂和抗痉挛的药物,能够下调A9并抑制SF在RCC细胞中的葡萄糖醛酸化作用。低剂量的SF和MU联用能够抑制生长、迁移和侵袭,以及抑制RCC细胞、病人来源的肿瘤外植体和/或内皮-RCC细胞共培养的侵入性特征;然而两种药物单独使用均效果不好。A9的过表达能够使得RCC对联用药物产生抗性没其下调能够使得对SF单独治疗敏感。该联用药物能够抑制肾肿瘤的生长,血管生长和远距离转移,且没有可检测到的毒性;A9的过表达肿瘤对治疗具有抗性。

最后,研究人员指出,低剂量的SF与MU联用对原发性肿瘤具有有效的控制并消除转移,因此是mRCC患者的一种有效的治疗选择。

原始出处:

Andre R. Jordan, Jiaojiao Wang, Travis J. Yates et al. Molecular targeting of renal cell carcinoma by an oral combination. Oncogenesis. 19 May 2020

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    2021-05-02 cy0324
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    2020-06-13 zhaojie88
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    2020-06-13 zsyan
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    2020-06-13 skhzy

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