基因编码的RNA传感器用于活细胞中小分子的比率和多重成像
Ze Fan1, Cai-Xia Dou1, Li-Juan Tang1
1State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan 410082, China.
Analytical chemistry
|September 12, 2023
概括
研究人员开发了一种新的模块化RNA传感器,用于对小分子的活细胞成像. 这种基因编码的传感器能够对代谢物进行定量和多重检测,为生物研究提供了一个多功能平台.
科学领域:
- 分子生物学分子生物学
- 生物技术是生物技术.
- 细胞成像 细胞成像
背景情况:
- 基因编码的传感器对于研究活细胞代谢产物至关重要.
- 目前还没有针对此类传感器的可通用设计.
- 现有的方法经常与比度和多重成像作斗争.
研究的目的:
- 开发一个模块化,基因编码的RNA传感器,用于活细胞成像.
- 为了使小分子的比度和多重检测.
- 创建一个多功能平台,用于成像不同的细胞目标.
主要方法:
- 设计了一个模块化的RNA传感器,利用aptasezyme进行识别,并点亮RNAaptamers进行信号传输.
- 采用阻断序列来调节阿巴体构造和阿巴酶介导的裂变来激活信号.
- 使用Mango的aptamer和SRB2的记者来构建一个比度传感器来检测theophylline.
主要成果:
- 成功开发了一种基因编码的比度传感器,用于在活细胞中定量成像theophylline.
- 通过适应其用于成像其他小分子来证明设计的模块化性.
- 展示了多重成像能力,通过整合各种Aptazymes和Reporters.
结论:
- 开发的模块化RNA传感器为小分子的活细胞成像提供了一个多功能平台.
- 这种方法可以实现比度和多重检测,从而推进细胞分析.
- 设计方便研究生物系统内的多种分子.
相关概念视频
DNA Microarrays
Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
Real Time RT-PCR
Real-time reverse transcription-polymerase chain reaction, or Real-time RT-PCR, is an analytical tool used to determine the expression level of target genes. The method involves converting mRNA to complementary DNA with the help of an enzyme known as reverse transcriptase, followed by the PCR amplification of the cDNA. These two processes can be performed simultaneously in a single tube or separately as a two-step reaction.
The real-time quantification of the number of amplified products is...
The real-time quantification of the number of amplified products is...
RNA-seq
RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases.
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while microarray-based...
Reporter Genes
Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
Commonly used reporter...
Commonly used reporter...
Ribosome Profiling
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...


