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一种cathepsin B-敏感的gemcitabine原药,用于增强胰腺癌治疗

Shuo Wang¹, Danwei Cen¹, Congcong Zhang¹

¹Faculty of Pharmacy, Zhejiang Pharmaceutical University, Ningbo 315100, China.

Journal of pharmaceutical sciences

|March 31, 2024

概括

一种新型的gemcitabine (GEM) 前药,GEM-RGD,通过保护GEM免受失活并向癌细胞来增强胰腺癌治疗. 与标准GEM相比,这种改进的前药具有更强的抗瘤活性和更低的毒性.

科学领域:

在瘤学瘤学.
药物运输药物运输药物运输
生物化学生物化学

背景情况:

葛西他 (GEM) 是胰腺癌的主要化疗方法,但有效性有限.
丁脱氨酶 (CDA) 通过对2',2'-difluorodeoxyuridine (dFdU) 的脱氨化迅速使GEM失活.
提高稳定性和有针对性的输送对于增强GEM的治疗潜力至关重要.

研究的目的:

设计和评估一种新的多改性GEM前药物RGDGFLG-GEM (GEM-RGD).
改善GEM的体内稳定性,并增强胰腺癌细胞的选择性吸收.
为了评估GEM-RGD的抗瘤活性和全身毒性,与免费的GEM和非向前药物相比.

主要方法:

合成使用保护性RGDGFLG序列的GEM-RGD前药物.
通过评估GEM除,评估体内稳定性的评估.
在体外和体内研究以确定细胞吸收,药物释放,抗瘤疗效和毒性.
与免费GEM和非向前药物 (GEM-RDG) 的比较.

主要成果:

GEM-RGD对CDA介导的除进行了显著改善的稳定性.
针对RGD的小组增强了胰腺癌细胞中的GEM-RGD吸收.
素B敏感的GFLG链接器促进了癌细胞内特定的GEM释放.
与GEM和GEM-RDG相比,GEM-RGD表现出优越的抗瘤活性和降低的全身毒性.

结论:

该GEM-RGD前药有效地克服了GEM的局限性,通过增强稳定性和实现有针对性的输送.
作为胰腺癌的改善治疗剂,GEM-RGD显示出显著的希望.
这种前药物策略提供了一种可行的方法,可以提高易于快速失活的化疗药物的疗效.

关键词:

癌症治疗治疗癌症治疗停用停用停用停用停用杰姆西塔宾 (Gemcitabine) 是一种药物.胰腺癌是一种胰腺癌.一个药物产品.

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