工程化瘤热带介质干细胞作为耐火性卵巢癌的向治疗输送系统
Geng Li1, Mohammad Massumi1, Hajar Owji1
1Department of Pharmaceutics, Rutgers University, Piscataway, NJ 08854, United States of America.
概括
这项研究开发了一种针对抗药性卵巢癌的新型干细胞疗法. 工程干细胞提供了向的酶/原药联合疗法,以最小的毒性消除转移性瘤.
科学领域:
- 在瘤学瘤学.
- 干细胞生物学 干细胞生物学
- 生物技术是生物技术.
背景情况:
- 卵巢癌往往会变得耐药和转移,需要新的治疗策略.
- 目前用于耐火性卵巢癌的治疗方法有效性有限,副作用很大.
研究的目的:
- 开发一种临床可转化,基于干细胞的系统,用于治疗耐药和转移性卵巢癌.
- 为了设计脂肪衍生干细胞 (ASCs),以表达特定的酶,用于向的组合酶/原药疗法.
主要方法:
- 基因工程 ASCs 来表达分泌人体碳素酶-2 (shCE2) 和酵母细胞酸脱氨酶: uracil phosphoribosyl转移酶 (yCD:UPRT).
- 在小鼠中利用卵巢癌细胞系和患者衍生的异种移植来建立转移性瘤.
- 用工程ASC和特定前药物 (氨酸和5-FC) 进行的组合治疗.
- 通过实时生物发光成像和免疫组织化学评估治疗反应和瘤根除.
主要成果:
- 工程ASCs成功迁移到瘤部位.
- 双酶/原药系统有效地将原药转化为瘤细胞内的细胞毒剂 (SN-38和5-FU).
- 组合疗法导致小鼠转移性卵巢瘤的完全根除.
- 在正常组织中没有观察到显著的毒性.
结论:
- 开发的ASC导向的双酶/原药系统是治疗耐火性卵巢瘤的高效和有针对性的方法.
- 这一策略显示出在卵巢癌治疗中临床翻译的巨大潜力.
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