LncRNA GABARAPL2 通过抑制骨质介质细胞 stromal 细胞骨质生成,促进非结合性长骨折
Hurong Du1,2, Wenlong Zhang1,2, Zeyuan Liu1,2
1Department of Orthopedics, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences，Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University , No. 99, Longcheng Street, Xiaodian District, Taiyuan, 030032, Shanxi, China.
Journal of orthopaedic surgery and research
|August 7, 2025
概括
长非编码RNA GABARAPL2 (lnc_GABARAPL2) 在骨折非结合患者中升高,并通过抑制骨质分化来损害骨愈合. 针对 lnc_GABARAPL2 提供了新的基于RNA的骨修复疗法的潜力.
科学领域:
- 分子生物学分子生物学
- 生物化学 生物化学
- 遗传学 是一个遗传学.
背景情况:
- 骨折愈合是一个复杂的生物过程,由多个因素调节.
- 非编码RNA因其在骨代谢和愈合中的关键作用而越来越被认可.
- 损伤的骨折愈合,特别是非联合,是一个重要的临床挑战.
研究的目的:
- 研究长非编码RNA GABARAPL2 (lnc_GABARAPL2) 在骨折愈合中的作用和分子机制.
- 确定Inc_GABARAPL2作为非工会的潜在生物标志物.
- 探索针对Inc_GABARAPL2及其下游影响因子的治疗策略,以治疗受损的骨修复.
主要方法:
- 使用RT-qPCR对lnc_GABARAPL2,miR-302a-3p,RUNX2和OCNmRNA表达的量化.
- 通过原I表达,ALP活性和矿物化试验来评估骨质分化.
- 在人骨髓中介质干细胞 (hBMSCs) 中体外操纵lnc_GABARAPL2,评估细胞增殖和细胞亡.
主要成果:
- 在非工会患者中,Lnc_GABARAPL2表达显著高于非工会患者,并作为非工会的独立预测因子.
- Lnc_GABARAPL2通过降低RUNX2和原I表达和抑制ALP活性来抑制骨质分化.
- Lnc_GABARAPL2通过准miR-302a-3p来调节hBMSC的增殖和亡.
结论:
- Lnc_GABARAPL2 作为骨折愈合的调节剂,是非工会的有希望的预测生物标志物.
- 向Inc_GABARAPL2和miR-302a-3p可以调节骨髓中酶干细胞功能.
- 这些发现为开发基于RNA的治疗策略提供了新的见解,以治疗受损骨修复.
相关概念视频
02:39lncRNA - Long Non-coding RNAs
8.9K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
8.9K
01:27Fractures: Bone Repair
3.7K
Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...
3.7K
01:40Bone Remodeling
38.5K
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
38.5K
01:19Mesenchymal Stem Cells
5.0K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
5.0K
01:31Osteoclasts in Bone Remodeling
3.2K
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...
3.2K
01:29Bone Formation by Intramembranous Ossification
7.5K
Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into ...
7.5K