纳米粒子的输送和RNA的向向大脑的目标
Aditya Gupta1, Raghu Ramanathan1, Chittalsinh M Raulji2
1Department of Pharmaceutical Sciences, the University of Nebraska Medical Center, Omaha, NE 68198, USA.
Biochimica et biophysica acta. Reviews on cancer
|December 22, 2025
概括
通过血脑屏障 (BBB) 传递RNA疗法对于治疗质母细胞瘤等脑癌至关重要. 纳米粒子工程和先进的传递方法是克服BBB挑战的关键,以有效的RNA和CRISPR基因疗法.
科学领域:
- 神经科学是一个神经科学.
- 生物技术是生物技术.
- 在瘤学瘤学.
背景情况:
- 血脑屏障 (BBB) 显著阻碍了中枢神经系统 (CNS) 疾病的治疗,特别是侵袭性脑癌 (质母细胞瘤,脑膜母细胞瘤).
- RNA和CRISPR基因疗法在脑癌中提供了向以前无法治疗的途径的潜力.
- 目前RNA疗法的临床成功主要在非中枢神经系统疾病中,这凸显了中枢神经系统特定进展的需要.
研究的目的:
- 审查在整个BBB提供基于RNA的治疗方法的策略,用于治疗脑癌.
- 总结最近的临床进展和利用纳米颗粒用于中枢神经系统RNA输送的挑战.
- 强调需要在纳米粒子工程,免疫逃避和大脑应用的非侵入性输送方面进行跨学科合作.
主要方法:
- 对中枢神经系统中RNA疗法的纳米粒子 (NP) 传递系统的当前文献的综述.
- 对增强BBB透的准策略 (例如GLUT1,RVG,ApoE模仿) 的分析.
- 评估非侵入性输送技术,如聚焦超声波,以改善RNA传输.
主要成果:
- 纳米粒子 (NP),特别是脂质纳米粒子 (LNP) 和病毒载体,对于推进脑癌的RNA疗法至关重要.
- 向小部分和非侵入性输送方法在克服BBB限制方面显示出希望.
- 最近的临床努力正在探索用于脑瘤的各种RNA输送方法.
结论:
- 克服BBB仍然是有效的RNA和CRISPR基因疗法在脑癌中的主要障碍.
- 在NP设计,向配体和非侵入性交付方面不断创新对于临床翻译至关重要.
- 跨学科的研究对于设计NP的免疫逃避和有效的RNA疗法的中枢神经系统输送至关重要.
相关概念视频
Experimental RNAi
7.2K
RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
7.2K
Regulated mRNA Transport
6.8K
In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the cytoplasm for protein synthesis. Before transport, a pre-mRNA undergoes several steps of post-transcriptional modifications including splicing, 5' capping, and the addition of a poly-adenine tail. Various proteins bind to the pre-mRNA during these modifications. The mRNA transport takes place with the help of multiple proteins playing...
6.8K
RNA Interference
27.7K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
27.7K
siRNA - Small Interfering RNAs
18.3K
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the...
18.3K


