PEG-BCT-100 和卡那瓦宁可协同诱导精氨酸生物合成酶缺陷型胰腺癌患者的细胞凋亡。

IF 2 Q3 ONCOLOGY
Tsz Tung Kwong, Hao Hao Deng, Chi-Hang Wong, Anthony W H Chan, Landon Long Chan, Siu-Ho K Chok, Paul N Cheng, Stephen Chan
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引用次数: 0

摘要

使用精氨酸酶剥夺精氨酸是一种潜在的癌症治疗方法,因为已发现一些癌症具有精氨酸缺养性,依赖外源性精氨酸生长。在这项研究中,我们评估了将目前正在进行临床试验的聚乙二醇化重组人精氨酸酶(PEG-BCT-100)与有毒的精氨酸类似物卡那瓦宁(canavanine)联合治疗胰腺癌的效果。在体外和体内都观察到了显著的协同抗肿瘤效果。具体来说,联合治疗可诱导胰腺癌细胞凋亡,而正常成纤维细胞仍可存活。我们的研究结果还表明,缺乏精氨酸生物合成关键酶--精氨酸琥珀酸合成酶 1(ASS1)和鸟氨酸转氨酶(OTC)的胰腺肿瘤更容易受到治疗的影响。通过内部队列和在线数据库分析,我们发现大多数胰腺癌患者都表现出 ASS1 和 OTC 酶的缺乏,这表明精氨酸剥夺和卡那瓦宁的联合治疗对这些患者特别有效。ASS1 和 OTC 阴性也可作为其他精氨酸依赖性癌症反应的预测性生物标志物。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
PEG-BCT-100 and Canavanine Synergistically Induce Apoptosis in Arginine Biosynthetic Enzyme-Deficient Pancreatic Cancer.

Significance: This study investigates the synergistic antitumor effect of PEG-BCT-100, an arginase, in clinical trials, with canavanine in pancreatic cancer, in vitro and in vivo. The treatment induces cancer cell apoptosis while sparing normal fibroblasts. Our findings suggest heightened susceptibility of pancreatic tumors deficient in arginine biosynthesis enzymes ASS1 and OTC.

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