贝贝林载四面体框架核酸对骨质疏松症的影响和机制
Weifei Zhang1, Chuan Guo1, Dengbo Yao1
1Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan, China, 610041. kqqspine@126.com.
Journal of materials chemistry. B
|September 25, 2024
概括
四面体框架核酸 (tFNAs) 增强柏柏林 (BBR) 输送用于骨质疏松症治疗. 新的T-BBR复合体通过激活Wnt信号通路,显示出改善的骨健康益处.
科学领域:
- 生物材料科学 生物材料科学
- 纳米技术 纳米技术
- 药理学 药理学是指药理学的学科.
背景情况:
- 骨质疏松症对健康构成重大风险,尤其是对老年人,目前的治疗方法在有效性和副作用方面表现出局限性.
- 柏柏林 (BBR) 显示出对骨质疏松症的治疗潜力,但其临床应用受到溶解性差和不稳定性阻碍.
- 开发新的药物输送系统对于改善骨质疏松症治疗结果至关重要.
研究的目的:
- 通过将柏柏林 (BBR) 封装在四面体框架核酸 (tFNA) 中,合成和评估一种新的纳米复合物T-BBR.
- 与单独的BBR相比,研究T-BBR增强的骨质生成和抗骨质疏松作用.
- 阐明T-BBR治疗作用的潜在机制,重点关注Wnt信号通路.
主要方法:
- 使用tFNA作为BBR的载体合成一个T-BBR纳米复合物.
- 在体外和体外实验模型来评估骨质生和抗骨质疏松活动.
- 对Wnt信号通路的分析,以了解作用机制.
主要成果:
- 与免费BBR相比,T-BBR纳米复合体表现出优越的骨质生成和抗骨质疏松作用.
- 在体外和体内进行的实验证实了T-BBR的增强疗效.
- 该研究确定了Wnt信号通路是T-BBR发挥其有益作用的关键机制.
结论:
- 四面体框架核酸 (tFNA) 作为Berberine (BBR) 的有效纳米药物递送系统,克服了它的局限性.
- 该T-BBR纳米复合体代表了一种有前途的治疗策略,用于骨质疏松症,具有增强的疗效.
- 针对Wnt信号通路是T-BBR抗骨质疏松活性的一个关键机制.
相关概念视频
01:29Bone Disorders
3.4K
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...
3.4K
01:17Hormones and Bone Tissue
2.6K
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...
2.6K
01:31Essential Minerals for Bone Health
3.8K
The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
3.8K
01:31Osteoclasts in Bone Remodeling
2.8K
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...
2.8K
01:21Drug Distribution: Tissue Binding
2.6K
Upon entering the systemic circulation, drugs can distribute into the interstitial and intracellular fluid of various tissue cells. This distribution is facilitated by the binding of drugs to different cellular components within tissues, which may lead to drug accumulation in specific areas. Drugs bound to tissue components serve as reservoirs that release free drugs back into the system, prolonging the drug's overall action. However, this accumulation can also result in local toxicity.
For...
For...
2.6K
01:25Role of Vitamins in Maintaining Bone Health
3.2K
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...
3.2K