Cancer Gene Ther:去势抵抗性前列腺癌细胞中的基因疗法研究

2019-02-14 AlexYang MedSci原创

前列腺癌是全球范围内男性的第二大癌症。晚期阶段的前列腺癌患者通常通过雄激素阻断疗法(ADT)来治疗。然而,随着疾病的恶化,常常会发展成为不可治愈的去势抵抗性前列腺癌(CRPC)。JC型多瘤病毒(JCPyV)是一种人类DNA病毒。它的类病毒颗粒(VLPs)展现出了与原生病毒相似的趋向性,并且具有将外源基因转化进靶细胞进行表达的能力。研究人员在前列腺细胞中检测到了JCPyV;因此,前列腺癌细胞可能对J

前列腺癌是全球范围内男性的第二大癌症。晚期阶段的前列腺癌患者通常通过雄激素阻断疗法(ADT)来治疗。然而,随着疾病的恶化,常常会发展成为不可治愈的去势抵抗性前列腺癌(CRPC)。JC型多瘤病毒(JCPyV)是一种人类DNA病毒。它的类病毒颗粒(VLPs)展现出了与原生病毒相似的趋向性,并且具有将外源基因转化进靶细胞进行表达的能力。

研究人员在前列腺细胞中检测到了JCPyV;因此,前列腺癌细胞可能对JCPyV感染敏感,并且JCPyV VLPs可能可以作为前列腺癌基因治疗的的一个载体。最近,有研究人员构建了一种质粒(pPSAtk),该质粒通过使用前列腺特异性抗原(PSA)启动子,可以使胸苷激酶自杀基因只在雄激素受体(AR)阳性前列腺癌细胞中表达。研究人员还利用JCPyV VLPs作为载体来携带pPSAtk (PSAtk-VLPs)来在前列腺癌细胞中确定转录靶向性。另外,研究人员还发现在体外,PSAtk-VLPs只能杀死阳性AR CRPC22Rv1细胞,并且能够抑制肿瘤结节在异种种植小鼠模型中的生长。

最后,研究人员指出,他们的结果阐释了PSAtk-VLPs未来能够作为治疗CRPC患者新的选择。

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    2019-02-17 cy0324
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    2019-12-03 yige2012
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    2019-02-16 yxch36
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最近,有研究人员对局部前列腺癌治疗的不同方法(机器人辅助根治性前列腺切除(RARP)和腹腔镜前列腺根治术(LRP)或者开放性根治性前列腺切除(ORP)),术后的状态以及功能结果进行了比较分析,并利用时间交换的方法对效用进行了测量。研究共分析了393名男性;效用值如下:在经历ORP的患者中,其术后健康状态表明了效用值比经历LRP患者降低。ORP和LRP与RARP相比,效应值分别减少约~0.028 (

Sci Rep:在前列腺癌中micro141与治疗结果和恶性肿瘤特性相关

大量的miRNAs能够影响关键细胞过程,并且参与前列腺的致瘤过程。之前的研究阐释了miRNAs在人类前列腺癌(PC)组织和细胞系中的高表达。在之前的基因芯片数据中,研究人员发现miR-141和miR145在PC中表达下调。最近,有研究人员在一个大的PC群体(n=535)中探索了miR-141和miR145在PC中的预后作用。研究人员分别和组合评估了肿瘤上皮(TE)和肿瘤基质(TS)区域。在原位杂交