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CLIN CANCER RES:前列腺癌Neo-AAPL治疗与PD-L1表达

2017-11-18 MedSci MedSci原创

PD-L1/PD-1阻滞在前列腺癌治疗中是不成功的,可能的原因是前列腺癌免疫原性差以及PD-L1低表达。近期有研究认为有一些前列腺癌可以显着表达PD-L1。而且在临床前模型中激素受体拮抗剂enzalutamide可以上调前列腺癌PD-L1表达。CLIN CANCER RES近期发表了一篇文章,研究新辅助阿比特龙去势治疗联合泼尼松及亮丙瑞林(Neo-AAPL)对前列腺癌PD-L1表达的影响。

PD-L1/PD-1阻滞在前列腺癌治疗中是不成功的,可能的原因是前列腺癌免疫原性差以及PD-L1低表达。近期有研究认为有一些前列腺癌可以显着表达PD-L1。而且在临床前模型中激素受体拮抗剂enzalutamide可以上调前列腺癌PD-L1表达。CLIN CANCER RES近期发表了一篇文章,研究新辅助阿比特龙去势治疗联合泼尼松及亮丙瑞林(Neo-AAPL)对前列腺癌PD-L1表达的影响。研究纳入了44例Neo-AAPL治疗后进行根治性前列腺切除的中-高风险前列腺癌患者标本。收集130例未接受治疗的前列腺肿瘤标本,其中44例为Neo-AAPL的对照组患者。使用免疫组化检测肿瘤PD-L1表达水平。在研究及对照组中研究肿瘤浸润CD8+细胞。在PD-L1阳性肿瘤中分析DNA错配修复基因表达。研究结果表明,Neo-AAPL治疗后的肿瘤与对照组相比有PD-L1阳性降低趋势。治疗后的肿瘤肿瘤浸润CD8+细胞更少。在130例未接受治疗的患者中,非裔美国人,血PSA升高和小前列腺独立预测肿瘤PD-L1阳性。21例PD-L1阳性的患者中有1例存在MSH2表达缺失。文章最后认为,Neo-AAPL治疗不会增

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    2018-01-20 ylz8410
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    2017-11-20 smartjoy
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    2017-11-20 风铃824
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    2017-11-18 明天会更好!

    好消息.值得学习

    0

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    2017-11-18 明天会更好!

    好消息.值得学习

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