从人类外周血液单核细胞生成骨质细胞样细胞,使用NFATc1修饰RNA
Sirada Srihirun1, Chareerut Phruksaniyom1, Thanaporn Sriwantana2
1Department of Pharmacology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand.
PloS one
|February 11, 2026
概括
这项研究使用修饰RNA (modRNA) 快速生成功能性骨质细胞样细胞,以强制NFATc1表达. 与传统技术相比,这种新的方法加速了骨细胞研究.
科学领域:
- 细胞生物学 细胞生物学
- 生物技术是生物技术.
- 骨生物学 骨生物学 骨生物学
背景情况:
- 骨质细胞抑制对于治疗骨质损失疾病至关重要.
- 目前用于从外围血液单核细胞 (PBMC) 生成人类骨质细胞的方法缓慢且低效.
研究的目的:
- 开发一种更快的方法,从人类PBMC中产生功能性骨质细胞类细胞.
- 利用修改后的RNA (modRNA) 来强化NFATc1的表达,NFATc1是骨质细胞生成中的关键转录因子.
主要方法:
- 人类PBMC被分离并培养成巨细胞殖民地刺激因子.
- 巨细胞被NFATc1 modRNA感染.
- 评估了骨质细胞特异性标记物 (TRAP,F-actin,cathepsin K) 和骨的再吸收活性.
- 扫描电子显微镜用于形态表征.
主要成果:
- NFATc1 modRNA 转染显著增加了巨细胞中的 NFATc1 表达.
- 转染诱导了多核,TRAP阳性细胞与F-actin环的形成.
- 观察到增强的甲素K表达和增加的骨质再吸收活性.
- 形态分析证实了骨质细胞类细胞特征.
结论:
- NFATc1 modRNA能够在体外快速生成功能性骨质细胞样细胞.
- 这种方法比传统的核因子-κB连接体激活受体激活剂激发方法要快得多.
- 这种方法为骨损失研究和治疗开发提供了有价值的工具.
相关概念视频
Osteoclasts in Bone Remodeling
4.3K
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
4.3K
Ribosomal RNA Synthesis
14.9K
Ribosome synthesis is a highly complex and coordinated process involving more than 200 assembly factors. The synthesis and processing of ribosomal components occurs not only in the nucleolus but also in the nucleoplasm and the cytoplasm of eukaryotic cells.
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
14.9K
Protein Buffers in Blood Plasma and Cells
4.0K
The human body utilizes protein buffer systems to maintain a stable pH. These systems capitalize on the dual role of amino acids, which can act as acids or bases by accepting or releasing hydrogen ions in response to pH changes. Protein buffer systems are particularly significant in the extracellular fluid (ECF) and intracellular fluid (ICF) of active cells, where structural and functional proteins provide substantial buffering capacity.
Certain amino acids can exist in a zwitterion state at a...
Certain amino acids can exist in a zwitterion state at a...
4.0K
Transfer RNA Synthesis
13.4K
One of the unique features of tRNA is the presence of modified bases. In some tRNAs, modified bases account for nearly 20% of the total bases in the molecule. Altogether, these unusual bases protect the tRNA from enzymatic degradation by RNases.
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
Each of these chemical modifications is carried by a specific enzyme, post-transcription. All of these enzymes have unique base and site-specificity. Methylation, the most common chemical modification, is carried by at least nine different enzymes, with...
13.4K
RNA Editing
9.9K
RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...
9.9K
RNA Interference
28.2K
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...
28.2K


