氨酸-多巴胺-NCSN水凝与细胞外基质结合促进伤口愈合
Yingjie Zhou1, Yongbiao Xu2, Rui Zhang1
1Institute of Biomaterials, The First Affiliated Hospital of Ningbo University, No.59 Liuting Street, Haishu District, Ningbo, 315010, China.
Macromolecular bioscience
|March 22, 2024
概括
这项研究开发了一种新的生物活性水凝,使用脱细胞化细胞外基质 (ECM) 颗粒. 这种先进的伤口包裹在临床前模型中显示出改善皮肤伤口愈合和关闭的前景.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 再生医学是一种再生医学.
背景情况:
- 皮肤屏障对于防止病原体入侵和启动伤口修复至关重要.
- 有效的伤口愈合对于生存至关重要,但异常修复可能导致功能障碍.
- 目前的水凝制剂往往没有在组织恢复方面取得重大进展.
研究的目的:
- 开发一种超快速凝的氨酸-多巴胺-尿素 (HA-DA-NCSN) 水凝.
- 将脱细胞化细胞外基质 (ECM) 颗粒纳入水凝中,以增强皮肤伤口修复.
- 评估ECM装载水凝作为生物活性伤口带的潜力.
主要方法:
- 用于制备氨酸-多巴胺-尿素 (HA-DA-NCSN) 水凝,在现场进行超快速凝.
- 将脱细胞化ECM粒子装入水凝网络.
- 在老鼠皮肤伤口模型中评估水凝的特性和性能.
主要成果:
- 这种HA-DA-NCSN水凝证明了超快的凝.
- 加入ECM粒子增强了水凝网络强度.
- 该ECM水凝释放了生物活性物质,显示了皮肤伤口修复的潜力.
- 该策略在改善大鼠模型中的皮肤伤口关闭方面表现有前途.
结论:
- 开发的ECM装载水凝作为皮肤伤口修复的有效生物活性平台.
- 这一策略具有显著的潜力,可以改善皮肤伤口愈合的结果.
- 生物活性水凝敷料为再生医学应用提供了一个有前途的方法.
相关概念视频
Phases of Wound Repair
6.0K
Following injury, the integrity of the injured tissues must be reestablished. For example, in skin tissue, wound repair involves coordination among resident skin cells, blood mononuclear cells, extracellular matrix, growth factors, and cytokines to complete the healing cascade.
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
6.0K
Clinical Applications of Epidermal Stem Cells
2.7K
Epidermal stem cells (EpiSCs) are mainly located at the basal layer of the epidermis. These cells repair minor injuries of the skin and replace dead skin cells. However, EpiSCs’ cannot heal severe wounds such as major burns or those from diabetes or hereditary disorders. In such cases, culturing the epidermal stem cells from the patient is possible and has yielded successful treatment options, such as laboratory-grown skin grafts. These grafts are synthesized using a patient’s own...
2.7K
Glycosaminoglycans
4.8K
Glycosaminoglycans (GAGs), also known as mucopolysaccharides, are long and linear polymers comprising of specific repeating disaccharides - the amino sugar that can be N-acetylglucosamine or N-acetylgalactosamine, and a uronic acid that is usually glucuronic acid or iduronic acid.
GAGS are found in the extracellular matrix of vertebrates, invertebrates, and bacteria. Due to their polar nature they attract water, and serve as excellent lubricants or shock absorbers in an animal body.
Hyaluronic...
GAGS are found in the extracellular matrix of vertebrates, invertebrates, and bacteria. Due to their polar nature they attract water, and serve as excellent lubricants or shock absorbers in an animal body.
Hyaluronic...
4.8K


