一种无细胞的,自我愈合的三层冷凝,用于子骨髓再生
Tsai-Yu Chen1, Niann-Tzyy Dai2, Tsung-Kai Wen3
1Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan, 106319, R.O.C.
Advanced healthcare materials
|July 1, 2024
概括
一种装有药物的新型三层冷凝,与针相结合,通过调节干细胞迁移和子的免疫反应,有效地促进骨髓再生.
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.
- 组织工程是组织工程.
背景情况:
- 骨质粒细胞再生在微手术中带来了重大挑战.
- 目前的治疗方法往往无法完全恢复关节功能.
- 需要创新的策略来增强骨质状元的修复.
研究的目的:
- 开发一种可注射的,无细胞三层冷凝 (TC) 用于骨髓缺陷再生.
- 研究药物载体TC和针对介质干细胞 (MSC) 行为和免疫调节的协同效应.
- 在子模型中评估这种联合策略的体内疗效.
主要方法:
- 制造一种自愈的三层冷凝 (TC) 基托和二功能的聚氨 (DFPU).
- 在上层和下层分别加载Y27632和甲,形成Y/DEX-TC.
- 在实验室中评估MSC的扩散和分化.
- 在子骨髓缺陷的体内评估,将Y/DEX-TC与针结合起来.
- 对细胞因子水平 (SDF-1,TGF-β1) 和巨细胞极化 (M2/M1比) 的分析.
主要成果:
- Y/DEX-TC支持显著的MSC增殖 (≈350%) 和在体外的定向差异化.
- 组合疗法在体内成功调节了SDF-1和TGF-β1水平,促进了MSC迁移.
- 观察到协同免疫调节,M2/M1巨细胞比率增加了约7.3倍,优于单个治疗.
- 在接受Y/DEX-TC和针治疗的子中,获得了显著的骨质突缺陷再生.
结论:
- 开发的无细胞药物载荷三层冷凝,当与针相结合时,为骨髓再生提供了一个有前途的战略.
- 这种方法有效地提高了MSC招聘,并促进了亲再生性免疫微环境.
- 这种协同作用的组合显示出治疗关节损伤和改善患者治疗结果的潜力.
更多相关视频
11:22Treatment of Osteochondral Defects in the Rabbit's Knee Joint by Implantation of Allogeneic Mesenchymal Stem Cells in Fibrin Clots
Published on: May 21, 2013
17.4K
07:24Autologous Microfractured and Purified Adipose Tissue for Arthroscopic Management of Osteochondral Lesions of the Talus
Published on: January 23, 2018
10.3K
相关概念视频
Embryonic Stem Cells
25.8K
Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
25.8K
Stem Cell Culture
4.5K
Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
4.5K
Tissue Renewal without Stem Cells
1.6K
After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
However, failure of such a system...
However, failure of such a system...
1.6K
Stem Cell Therapy for Tissue Regeneration
3.8K
Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
Types of Stem Cells used in Stem Cell Therapy
The two main cell...
3.8K
Embryonic Stem Cells
4.5K
Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
4.5K
Methods of Nuclear Reprogramming
1.4K
Nuclear reprogramming is a process of transforming one cell type into an unrelated cell type by epigenetic changes that alter the cell’s original gene expression pattern. Such epigenetic changes force cells to express a different set of genes, which play a significant role in inducing transformation into other cell types. Nuclear reprogramming offers applications in reproductive cloning for livestock propagation and regenerative medicine — developing patient-specific cells for...
1.4K
