丝纤维蛋白热敏聚合物:对于骨质炎治疗的骨质生成,抗炎和血管生成作用
Pavarish Jantorn1, Chayanee Noosak1, Khanin Iamthanaporn2
1Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand.
Journal of biomaterials science. Polymer edition
|February 16, 2025
概括
这项研究表明,纤维蛋白水凝通过增强骨质生成和血管生长来促进骨愈合,同时减少炎症,为骨髓炎 (骨感染) 提供了有前途的治疗方法.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 整形外科手术 整形外科手术
背景情况:
- 传染性骨缺陷阻碍了愈合和血管化,构成了严重的骨科挑战.
- 骨髓炎需要有效的生物材料来促进骨再生和控制感染.
研究的目的:
- 研究纤维素热敏水凝在骨髓炎治疗中的骨再生潜力.
- 为了评估水凝对骨质生成,炎症和血管生成的影响.
主要方法:
- 评估了使用活/死骨质细胞染色的水凝生物相容性.
- 测量了性酸酶 (ALP) 活性,总蛋白质和沉积.
- 分析了骨质生成标记物的基因表达 (RUNX2,OCN,COL-1).
- 通过测量氧化物 (NO) 和巨细胞中的iNOS表达来评估抗炎作用.
- 通过使用VEGF载荷的水凝和HUVEC增殖试验来评估血管新生潜力.
主要成果:
- 纤维蛋白水凝显示出优异的生物相容性与高的骨质细胞活力.
- F3水凝配方显著增加了ALP活性,蛋白质含量和沉积,表明骨质生成得到了增强.
- 基因表达分析证实了关键骨质生成标记物的上调.
- 在刺激的巨细胞中,F3水凝降低了NO的产生和iNOS的表达,显示出抗炎性质.
- 载有VEGF的F3水凝显著促进了HUVEC的扩散,证明了血管性潜力.
结论:
- 纤维蛋白热敏水凝 (F3) 具有显著的骨质生成,抗炎和血管生成特性.
- 这些综合作用使F3水凝成为治疗传染性骨缺陷和促进骨髓炎骨再生的有希望的生物材料.
相关概念视频
01:22Connective Tissue Cell Types
Connective tissue develops from the mesoderm of a developing embryo and consists of cells, fibers, and ground substance: a gel-like material containing large complexes of carbohydrates and proteins. Connective tissue was first identified as a separate tissue family in the 18th century, and Johannes Peter Muller coined the term connective tissue.
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
Fat cells (adipocytes), smooth muscle cells (myoblasts), and bone cells (osteoblasts) are some connective tissue cell types. Some immune system cells...
01:18The Bone Matrix
Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in acid or...
01:29Bone Disorders
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...
00:55Fibrous Proteins
Fibrous proteins are either long and narrow proteins or assemble to form long and thin structures. They contain repetitive units and usually consist of either alpha helices or beta sheets and, in rare cases, a mix of both. The amino acids in the primary structure often consist of repeating amino acid sequences. The role of fibrous proteins is primarily structural. Many are located in the extracellular matrix and are present in connective tissues to impart strength and joint mobility. They are...
01:16Vascular Spasm
The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last for...
01:11Healing I: Introduction
Healing is the physiological process by which the body restores the integrity and function of damaged tissues following injury. It involves a coordinated interplay of cellular proliferation, extracellular matrix remodeling, and growth factor signaling. The extent and nature of the tissue damage determine whether healing occurs by resolution, regeneration, or replacement.ResolutionResolution represents the most complete form of healing, occurring when the injury is minimal and tissue...