向脂质体和加速的CRISPR系统用于细胞中miR-21的选择性成像
Wenyue Zhang1, Mengting Wu1, Qingqing Zhang1
1School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China. yingshug@126.com.
概括
这项研究介绍了一种针对脂质体的新型CRISPR系统,用于精确检测MCF-7细胞中的microRNA-21 (miR-21). 这种加快的CRISPR方法利用MUC1的aptamer修饰和二氧化纳米片进行有针对性的传递和成像.
科学领域:
- 生物技术是生物技术.
- 分子生物学分子生物学
- 纳米技术纳米技术
背景情况:
- 微RNA-21 (miR-21) 与包括乳腺癌在内的各种癌症有关.
- 针对性传递和特定微RNA的敏感检测对于癌症诊断至关重要.
- 基于CRISPR的系统提供了精确分子检测的潜力.
研究的目的:
- 开发一种脂体向和加速的CRISPR策略,用于特定检测miR-21.
- 为了利用MUC1的受体修饰来针对性地传递给MCF-7细胞.
- 采用二氧化纳米片 (MnO2 NS) 作为双重功能传递载体和加速器,用于增强CRISPR活动和成像.
主要方法:
- 脂质体配方与MUC1胺基修饰用于向的输送.
- 整合CRISPR系统与MnO2 NS用于加速反应动力学.
- 开发用于miR-21检测的空间选择性成像技术.
主要成果:
- 通过MUC1的受体,成功地将CRISPR系统通过MUC1的受体传递给MCF-7细胞.
- 通过 MnO2 NS.促进加快CRISPR活动的演示.
- 在细胞内实现了miR-21的空间选择性和敏感成像.
结论:
- 开发的脂体向的加快CRISPR策略可以进行特定和敏感的miR-21.1检测.
- 修改MUC1胺和MnO2 NS是有效的目标交付和增强CRISPR性能.
- 这种方法有望在癌症研究中推进基于microRNA的诊断和成像.
相关概念视频
01:59CRISPR
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Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
01:59CRISPR
Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced Short...
02:15Experimental RNAi
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01:23The Antiviral System of Bacteria and Archaea: CRISPR
CRISPR stands for Clustered Regularly Interspaced Short Palindromic Repeats is a adaptive immune system found in bacteria and archaea that protects against viral infections. This system enables prokaryotic cells to identify, remember, and neutralize foreign genetic elements, primarily bacteriophages, by storing fragments of the invader’s DNA as a genetic memory.The CRISPR immune response begins during an initial infection. Cas (CRISPR-associated) proteins play a central role in this defense.
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The CRISPR-Cas system serves as a bacterial defense mechanism against invading genetic elements such as viruses and plasmids, forming the foundation for its adaptation as a powerful genome-editing tool. Originally discovered in prokaryotes, this system has been repurposed to revolutionize genetic engineering across a wide range of organisms, including plants, animals, and humans. The core component, Cas9, is an endonuclease derived from Streptococcus pyogenes, capable of introducing...