工程新的DNA纳米架构用于向药物输送和Aptamer介导的癌症疗法中的亡
Abhisek Dwivedy1,2, Dhyanesh Baskaran3, Gaurav Sharma4
1Department of Bioengineering, Grainger College of Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
概括
设计者DNA架构模板的药物结合物 (DDA-DCs) 精确地准急性髓性白血病干细胞. 这种新的方法显著提高了药物递送的有效性,并在临床前模型中最大限度地降低了瘤外毒性.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术 纳米技术
- 在瘤学瘤学.
背景情况:
- 向癌症治疗需要精确地将药物输送到癌症干细胞 (CSCs),以提高疗效和降低毒性.
- 急性髓性白血病 (AML) 复发通常是由逃避常规治疗的白血病干细胞 (LSC) 驱动的.
- 目前的向疗法面临着由于生物标志物在健康组织上的表达而具有特异性的挑战.
研究的目的:
- 开发和评估设计者DNA架构 (DDA) 模板的药物结合物 (DDA-DCs) 针对针对性地向AML小细胞输送鲁素 (Dau).
- 调查DDA-DCs克服最小残留疾病 (MRD) 和预防AML复发的潜力.
- 证明DDA-DC策略在现有向疗法的优势.
主要方法:
- DDA-DCs是用CD117和CD123结合性亚体进行工程设计的,用于LSC向.
- 达乌诺鲁比 (Dau) 通过dSDNA间隙加载到DDA平台.
- DDA-DCs的细胞毒性和疗效在体外 (ex vivo) 和体内AML模型中进行了评估.
主要成果:
- DDA-DCs对CD117+CD123+AML细胞表现出强有力的和选择性的细胞毒性.
- 有效的药物剂量减少了500倍ex vivo和高达10倍 in vivo.
- 该DDA-DC策略显示了优势,包括生物标志物分析以定位,可定位的亲和力和多药物输送能力.
结论:
- DDA-DCs代表了一个有前途的战略,用于向LSCs提供高度特定和强大的抗癌药物.
- 这种方法提供了优越的抗癌疗效,最小化了目标外影响,解决了AML治疗的关键需求.
- DDA-DC平台为开发下一代向性癌症疗法提供了一个多功能框架.
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