circ_0134120:了解绝经后骨质疏松症病原体的新前沿
Junling Wang1, Hongyan Zhang2, Yue Cao3
1Gynecologic Department, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
Journal of molecular endocrinology
|April 2, 2024
概括
这项研究揭示了绝经后骨质疏松症 (OP) 中的一个关键分子机制. 与miR-590-5p的特定循环RNA (circRNA) 相互作用调节STAT3,为OP提供潜在的治疗点.
科学领域:
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
- 内分泌学 在内分泌学.
背景情况:
- 绝经后的骨质疏松症 (OP) 是一种广泛的骨疾病,其分子基础尚未完全理解.
- 循环RNAs (circRNAs) 正在成为包括骨代谢在内的各种生物过程中的关键调节者.
研究的目的:
- 调查circRNAs在绝经后OP中的作用.
- 阐明OP病变发生过程中circRNA-miRNA-mRNA调节网络的机制.
- 确定绝经后OP的潜在治疗点.
主要方法:
- 从绝经后OP患者的circRNA和miRNA表达特征分析.
- 构建一个circRNA-miRNA-mRNA调节网络.
- 实验验证使用双露西法酶记者测定,RNA下拉和qRT-PCR.
主要成果:
- 在绝经后的OP中识别差异表达的circRNA和miRNA.
- 构建一个新的circRNA-miRNA-mRNA网络,涉及OP中的关键基因.
- 证明circ_0134120通过与miR-590-5p的相互作用来调节STAT3表达.
结论:
- 该circRNA-miRNA-mRNA网络,特别是circ_0134120/miR-590-5p/STAT3轴,在绝经后的OP进展中发挥着重要作用.
- 这种监管网络代表了治疗绝经后骨质疏松症的有希望的治疗途径.
相关概念视频
01:40Bone Remodeling
38.3K
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.
38.3K
01:31Osteoclasts in Bone Remodeling
2.9K
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...
2.9K
01:29Bone Disorders
3.5K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.5K
01:17Hormones and Bone Tissue
2.7K
The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
2.7K
01:25Role of Vitamins in Maintaining Bone Health
3.3K
The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
3.3K
01:21Skeleton and Calcium Homeostasis
4.5K
Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
4.5K