载有DNA的向纳米粒子作为安全的平台,在瘤B细胞中产生外源蛋白质
Maria Cristina Grimaldi1, Sara Bozzer2, Dick J Sjöström3,4
1Department of Life Sciences, University of Trieste, Trieste, Italy.
Frontiers in immunology
|February 6, 2025
概括
向的纳米粒子将治疗基因传递给B细胞,增强蛋白质表达,毒性最小. 这种方法对在淋巴瘤治疗中局部基因治疗有希望.
科学领域:
- 生物技术和纳米医学
- 基因治疗输送系统的基因治疗.
背景情况:
- 用抗CD19功能化纳米粒子 (NP) 针对B细胞进行选择性药物和核酸输送.
- 该战略旨在尽量减少非目标效应和系统毒性,同时确保本地蛋白质生产.
研究的目的:
- 开发和评估用于针对性地将基因传递到B细胞的poly (乳酸-co-甘氨酸) -poly (乙烯醇) (PLGA-PVA) NP.
- 在体外和体内评估携带增强绿色光蛋白 (EGFP) 等离子体的抗CD19向NP的安全性和有效性.
主要方法:
- 开发载有EGFP等离子体的PLGA-PVANP,并涂上抗CD19抗体.
- 物理化学表征,安全性评估 (细胞毒性,凝血,补充,内皮细胞/白细胞激活) 和转染试验.
- 在人/斑马鱼淋巴瘤异种移植模型中的体内评估.
主要成果:
- 该PLGA-PVANP有效封装并释放EGFP等离子体.
- 该纳米平台表现出有利的安全概况,细胞毒性和免疫激活最小.
- 向的NP增强了细胞吸收,等离子体DNA翻译和蛋白质表达在体外和体内,在异种移植模型中没有观察到毒性.
结论:
- 有针对性的NP是有效的选择性基因输送到B细胞.
- 开发的纳米平台展示了治疗性蛋白质安全高效局部表达的潜力.
- 研究结果支持使用向NP作为局部基因治疗的DNA输送系统.
相关概念视频
Targeted Cancer Therapies
7.4K
The targeted cancer therapies, also known as “molecular targeted therapies,” take advantage of the molecular and genetic differences between the cancer cells and the normal cells. It needs a thorough understanding of the cancer cells to develop drugs that can target specific molecular aspects that drive the growth, progression, and spread of cancer cells without affecting the growth and survival of other normal cells in the body.
There are several types of targeted therapies against...
There are several types of targeted therapies against...
7.4K
Tumor Immunotherapy
464
Immunotherapy is a treatment that boosts or manipulates the immune system to fight diseases, including cancer. For instance, by stimulating an immune response through vaccinations against viruses that cause cancers, like hepatitis B virus and human papillomavirus, these diseases can be prevented. Nonetheless, some cancer cells can avoid the immune system due to their rapid mutation and division. The immune response to many cancers involves three phases: elimination, equilibrium, and escape.
464


