智能瘤细胞衍生DNA纳米树组合,用于按需重编程巨细胞
Zhiguo Chen1,2, Sha Yang1, Zhuyang Zhao1
1Department of Clinical Laboratory Medicine, Southwest Hospital, Army Medical University (Third Military Medical University), 30 Gaotanyan, Shapingba District, Chongqing, 400038, China.
Advanced science (Weinheim, Baden-Wurttemberg, Germany)
|December 25, 2023
概括
一种新的DNA纳米结构策略,Panel-HCR,精确地准瘤细胞释放刺激免疫力的CpG寡氧核酸 (CpG-ODNs). 这有效地重新编程与瘤相关的巨细胞 (TAMs) 以加强抗瘤免疫疗法.
科学领域:
- 生物医学工程 生物医学工程
- 免疫学 免疫学 免疫学
- 纳米技术纳米技术
背景情况:
- 抗瘤免疫疗法的有效性受到瘤细胞和瘤相关巨细胞 (TAMs) 之间的不平衡所限制.
- 针对TAM极化对于有效的癌症治疗至关重要.
研究的目的:
- 开发一种智能,按需的策略,利用瘤细胞衍生信号调节TAM.
- 研究基于DNA纳米结构的癌症免疫治疗方法的潜力.
主要方法:
- 设计了一个靠近定非线性杂交链反应 (Panel-HCR) 策略.
- 面板-HCR系统利用DNA纳米结构来识别瘤细胞并释放CpG寡氧核酸 (CpG-ODNs).
- 针对瘤细胞的生物成像在体外,组织内和体内进行.
主要成果:
- 该小组-HCR战略成功地在瘤细胞表面上组装了DNA纳米结构.
- 实现了根据需要释放CpG-ODNs,这取决于瘤细胞度.
- CpG-ODNs有效地将M2 TAM转化为M1表型,激活NF-κB通路并增加炎症性细胞因子.
- 在体外和体内观察到显著的抗瘤免疫反应.
结论:
- 该小组-HCR战略为癌症免疫治疗中TAM的按需调节提供了一个有希望的方法.
- 这种方法显示了改善抗瘤免疫疗法的临床益处的潜力.
相关概念视频
Introduction to Nuclear Reprogramming
1.9K
Nuclear reprogramming is the process of switching gene expression of one cell type to that of another cell type, usually from a differentiated cell state to an undifferentiated cell state. Differentiation occurs during processes such as development and morphogenesis, tissue regeneration, and malignancy. Cells can also be artificially induced to reprogram their gene expression by techniques such as nuclear transfer, induced pluripotency, and cell fusion. Such techniques have many applications in...
1.9K
Methods of Nuclear Reprogramming
1.8K
Nuclear reprogramming is a process of transforming one cell type into an unrelated cell type by epigenetic changes that alter the cell’s original gene expression pattern. Such epigenetic changes force cells to express a different set of genes, which play a significant role in inducing transformation into other cell types. Nuclear reprogramming offers applications in reproductive cloning for livestock propagation and regenerative medicine — developing patient-specific cells for...
1.8K


