莫鲁辛抑制RANKL诱导的骨质结晶发生和卵巢切除骨质疏松症
Cong Jin1, Jiewen Zheng1,2, Qichang Yang1,3
1Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing, Zhejiang, 312000, China.
Combinatorial chemistry & high throughput screening
|October 9, 2023
概括
莫鲁辛 (Morusin) 来自 Morus australis 树,在治疗绝经后骨质疏松症方面表现有前途. 在小鼠模型中,这种天然化合物有效地抑制了骨损失和骨质细胞形成.
科学领域:
- 药理学 药理学是指药理学的学科.
- 骨质疏松症研究 骨质疏松症研究
- 传统中国医药 传统中国医药
背景情况:
- 绝经后骨质疏松症 (PMOP) 是一个日益严重的全球健康问题,治疗选择有限.
- 对于PMOP的安全和有效的替代治疗方法有极大需求.
- 莫鲁辛是一种来自*Morus australis*的化合物,表现出各种生物活性,包括抗炎和抗瘤作用.
研究的目的:
- 为了研究Morusin对绝经后骨质疏松症的治疗潜力.
- 阐明莫鲁辛对骨质细胞和骨代谢的作用机制.
主要方法:
- 评估了Morusin对小鼠骨质细胞的抑制作用 *in vitro*.
- 在卵巢切除术 (OVX) 诱导的骨质疏松症小鼠模型 *in vivo* 中评估了Morusin的保护作用.
- 分析了Morusin对关键信号通路 (NF-κB,MAPK,PI3K/AKT) 和骨质细胞分化因子 (c-Fos,NFATc1,c-Jun) 的影响.
主要成果:
- 在OVX诱导的骨质疏松症模型中,莫鲁辛治疗有效地预防了骨质损失.
- 莫鲁辛显著抑制了RANKL诱导的骨质结晶形成 *在体外*.
- 莫鲁辛干扰了RANKL激活的信号通路,并降低了关键骨质细胞分化因子的表达.
结论:
- 莫鲁辛表明对OVX诱导的骨损失有保护作用.
- 这些发现表明Morusin可能是绝经后骨质疏松症的可行的治疗剂.
相关概念视频
Osteoclasts in Bone Remodeling
3.0K
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...
3.0K
Bone 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
Bone Disorders
3.6K
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...
3.6K


