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在黑色素瘤和癌中,Pten淘汰赛对药物耐药性的影响不同

Klaudia Brodaczewska¹, Aleksandra Majewska^2,3, Aleksandra Filipiak-Duliban^2,3

¹Laboratory of Molecular Oncology and Innovative Therapies, Military Institute of Medicine - National Research Institute, Szaserów 128, 01-141, Warsaw, Poland. kbrodaczewska@wim.mil.pl.

Pharmacological reports : PR

|September 6, 2023

概括

失去PTEN (酸酶和张素同类) 瘤抑制功能会影响不同瘤类型的癌症药物敏感性. 黑色素瘤细胞中的Pten淘汰会增加思柏林的敏感性,而癌细胞则变得耐药,突出了PTEN.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
癌症研究癌症研究

背景情况:

PTEN是一种关键的瘤抑制剂,在各种癌症中经常被禁用.
瘤特异性的PTEN功能需要新的Pten淘汰模型进行全面分析.
了解PTEN的作用对于癌症进展和治疗结果评估至关重要.

研究的目的:

研究CRISPR/Cas9介导的Pten淘汰对小鼠黑色素瘤 (B16 F10) 和癌 (Renca) 细胞的影响.
为了评估PTEN放松对瘤进展的影响,在体外和体内.
评估PTEN损失对药物治疗疗效和分子变化的影响.

主要方法:

在CRISPR/Cas9基因编辑中,在B16 F10和Renca细胞系中创建Pten淘汰模型.
在体外和体内测试以评估瘤进展和细胞增殖.
分子变化的分析,包括pAKT,p53,PAI-1和上皮细胞到介质细胞的过渡标志物.

主要成果:

在这两种模型中,Pten淘汰并没有显著改变细胞增殖.
观察到不同的药物敏感性:B16 F10细胞对西斯普拉丁的敏感性增加,而Renca细胞表现出耐药性.
分子变化包括pAKT在两者中的积累,Renca中的p53上调,改变的PAI-1分泌和Renca细胞中的EMT标记物变化.

结论:

失去PTEN会引起异构的细胞反应,这凸显了它在不同癌症类型中的复杂作用.
这些发现支持PTEN作为个性化癌症医学的潜在治疗点.
对PTEN的上下文依赖功能的进一步研究是有必要的.

关键词:

西斯普拉丁 (Cisplatin) 是一种黑色素瘤是一种黑色素瘤.PAI-1是PAI-1的第一个类型.在这里,我们可以使用PTEN.在 RCC RCC 里面,你会发现.

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