基于肝脂的纳米颗粒的多重空间选用于体内信使RNA的向
Thomas Enzlein1, Jens Schumacher2, Alexander Geisel1
1CeMOS Research and Transfer Center, Mass Spectrometry and Optical Spectroscopy, Technische Hochschule Mannheim, Paul-Wittsack-Str. 10, 68163 Mannheim, Germany.
概括
这项研究引入了多式成像,以选纳米粒子 (NP) 进行有针对性的传递. 这种方法增强了对NP选择性的控制,有助于开发先进的mRNA疗法.
科学领域:
- 生物医学工程 生物医学工程
- 纳米技术纳米技术
- 分子成像学分子成像学
背景情况:
- 基于脂质的纳米颗粒 (NP) 在体内传递信使RNA (mRNA) 和其他治疗药物方面至关重要.
- 针对性mRNA NP疗法的临床应用受到针对性选择性控制不足的限制.
- 需要先进的成像技术来评估NP生物分布和功能.
研究的目的:
- 开发和验证一种多式成像方法,用于对纳米粒子 (NP) 准选择性的高通量选.
- 为了能够同时评估NP有效载荷活动和脂质分布在体内.
- 促进下一代NP的开发,用于器官特异性药物输送.
主要方法:
- 生物发光成像 (BLI) 的整合用于器官级的mRNA有效载荷活动和光成像用于细胞级的读数.
- 使用质谱成像 (MSI) 来多重评估组织内NP脂质分布.
- 在体内采用多种NP配方的同时空间映射的代化策略.
- 将分子组织学与免疫光显微镜相结合,用于特定细胞类型的NP分析.
主要成果:
- 多式成像方法提供了有关NP活动和选择性的器官特定的定量数据.
- 在同一动物中实现了不同NP配方 (例如,向肺和脏的脂质组) 的同时映射.
- 分子组织学和免疫光学证实了目标细胞类型特定的NP递送.
- 该方法为NP优化产生了详细的结构-功能关系见解.
结论:
- 多模生物发光和质谱成像 (MSI) 为活性纳米粒子多重选提供了一个强大的平台.
- 这种技术克服了控制NP准选择性的局限性,这对于临床转化至关重要.
- 开发的分析程序显著推进了针对性NP的药物开发,以提高器官特异性输送.
相关概念视频
Nucleic acids
Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
RNA Structure
Overview
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
RNA Interference
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...
Nucleic Acids
Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
RNA Interference
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...
Nucleic Acid Structure
The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms a 5′ to 3′ phosphodiester linkage.
DNA Structure
DNA has a double-helix structure. The...
DNA Structure
DNA has a double-helix structure. The...


