相关实验视频

Updated: Jul 5, 2025

Construction and Evaluation of a Murine Calvarial Osteolysis Model by Exposure to CoCrMo Particles in Aseptic Loosening

Construction and Evaluation of a Murine Calvarial Osteolysis Model by Exposure to CoCrMo Particles in Aseptic Loosening

Published on: February 17, 2018

甲基RNA甲基化调节由颗粒诱导的骨解

Xiaoxuan Lin¹, Yang Yang¹, Yaohong Huang¹

¹Department of Oral Implantology, Hospital of Stomatology, Guanghua School of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China.

Molecular medicine reports

|January 12, 2024

概括

的磨损颗粒会导致植入物周围的骨质损失. 这项研究表明RNA甲基化,特别是Mettl3,是这一过程的关键,为假肢失败提供了新的治疗点.

科学领域:

生物医学工程生物医学工程
分子生物学分子生物学
整形外科手术整形外科手术

背景情况:

来自磨损颗粒的周围假肢骨解 (PPO) 是植入物失败的主要原因.
了解PPO的分子机制对于开发向疗法至关重要.
N6-甲基氨酸 (m6A) RNA甲基化参与骨代谢和炎症.

研究的目的:

为了研究RNA甲基化在颗粒诱导的骨解中的作用.
阐明PPO所涉及的特定分子通路.

主要方法:

反转录定量PCR (RT-qPCR) 是一种反转录定量PCR.
西方涂抹是指西方涂抹.
艾丽莎·伊丽莎·伊丽莎
在RNA点点测试中进行了点点测试.
透视病毒介导的Mettl3中断和过度表达.
甲基化RNA免疫沉降-qPCRR的方法

主要成果:

颗粒诱导了骨质生成抑制和炎症,与减少的甲基转移酶样3 (Mettl3) 表达相关.
Mettl3的敲击模仿了粒子的影响,而Mettl3的过度表达减弱了它们.
Mettl3调解了Smad7和SMAD特异性的E3无素蛋白联酶1的甲基化,影响了BMP信号传递.
颗粒通过Mettl3-依赖甲基化激活了NOD1,MAPK和NF-κB通路.

结论:

颗粒通过上调Mettl3.3,诱导骨解和炎症.
Mettl3在调节细胞对颗粒反应方面发挥着至关重要的作用.
准Mettl3可能为假肢中的无菌松动提供一种新的治疗策略.

关键词:

甲基化N6 - 甲基氨酸RNA甲基化无菌松是一种无菌松.表观遗传调节表观遗传调节类似于甲基转移酶3的甲基转移酶.骨质溶解是一种骨质裂变.颗粒可以从中得到.

更多相关视频

Author Spotlight: Comparing Alveolar and Long Bone Remodeling to Explore OTM Model Potential

Author Spotlight: Comparing Alveolar and Long Bone Remodeling to Explore OTM Model Potential

Published on: July 21, 2023

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model

Skeletal Phenotype Analysis of a Conditional Stat3 Deletion Mouse Model

Published on: July 3, 2020

相关概念视频

MicroRNAs

MicroRNAs

MicroRNA (miRNA) are short, regulatory RNA transcribed from introns—non-coding regions of a gene—or intergenic regions—stretches of DNA present between genes. Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After...

Osteoclasts in Bone Remodeling

Osteoclasts in Bone Remodeling

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...

mRNA Stability and Gene Expression

mRNA Stability and Gene Expression

The structure and stability of mRNA molecules regulates gene expression, as mRNAs are a key step in the pathway from gene to protein. In eukaryotes, the half-life of mRNA varies from a few minutes up to several days. mRNA stability is essential in growth and development. The absence of the proteins regulating its stability, such as tristetraprolin in mice, can cause systemic issues, including bone marrow overgrowth, inflammation, and autoimmunity.
Cis-acting Elements involved in mRNA stability