来自子粘液的天然生物粘合剂,用于伤口修复
Zhengchao Yuan1, Siyuan Wu2, Liwen Fu3
1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, College of Biological Science and Medical Engineering, Donghua University, 201620, Shanghai, PR China.
Bioactive materials
|March 4, 2025
概括
Slug 粘液是一种天然生物材料,表现出显著的特性,如粘粘性和静血性. 这种多功能物质显示出先进生物技术和医疗保健应用的潜力,包括伤口愈合.
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.
- 生物技术是生物技术.
背景情况:
- Slug 粘液具有独特的特性,如可逆凝,粘粘性和粘性弹性.
- 这些特征表明了在各种生物技术和医疗保健领域的潜在应用.
研究的目的:
- 为了研究从虫中提取的干粘液 (DM) 作为生物材料的潜力.
- 评估DM的静血性,生物相容性,生物降解性和伤口愈合能力.
主要方法:
- 从子分泌物中制备干燥的粘液 (DM).
- 组织粘附的评估使用膝盖剪切力测量.
- 在肝脏创伤模型中评估静血能力.
- 在4周内进行体内生物相容性和生物降解性研究.
- 在全厚切割伤口中评估皮肤修复效果.
主要成果:
- DM-3组表现出强大的组织粘附力 (1.1N的腿部剪切力).
- 在肝脏创伤模型中,DM-3在肝脏创伤模型中显示出快速静血 (<15秒).
- 在体内研究表明,在4周后,具有很好的生物相容性和生物降解性,残留量最小.
- 观察到皮肤修复的显著改善,到第14天,伤口关闭率为96.2%.
结论:
- 的粘液可以经济和环保地制成一种功能生物材料 (DM).
- DM表现出有希望的静血,生物相容性和伤口愈合特性.
- 这种天然生物材料为各种生物技术和医疗保健应用提供了宝贵的平台.
相关概念视频
Phases of Wound Repair
5.8K
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...
5.8K
Inflammatory Response II: Inflammatory Exudate and Tissue Repair
4.5K
The immune system's inflammatory response destroys the invading pathogen, permitting the tissue to heal. The changes during the cellular and vascular stages allow exudate formation at the site of inflammation. The inflammatory exudate released from the wound has high protein content and a specific gravity above 1.020.
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the...
The typical wound exudate is odorless, transparent, straw-colored, thin, and watery. Exudate, however, can differ depending on the state of wound healing. Likewise, the...
4.5K
Glycosaminoglycans
4.7K
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...
4.7K
Drugs for Peptic Ulcer Disease: Sucralfate as Mucosal Protective Agents
362
In the intricate landscape of the gastric lumen, excessive acid secretion disrupts the natural defense mechanisms, weakening the mucus-bicarbonate barrier. This vulnerability allows pepsin to infiltrate epithelial cells, digesting mucosal proteins and triggering erosion, leading to ulcer formation.
In this scenario, mucosal protective agents like sucralfate play an essential role. Sucralfate, a complex of sulfated sucrose and aluminum hydroxide, demonstrates its usefulness in acidic conditions,...
In this scenario, mucosal protective agents like sucralfate play an essential role. Sucralfate, a complex of sulfated sucrose and aluminum hydroxide, demonstrates its usefulness in acidic conditions,...
362
Overview of Regeneration and Repair
3.9K
Regeneration and repair processes are critical in healing damages caused by injury, disease, and aging. In regeneration, the damaged tissue is entirely replaced with new growth that restores the original architecture and function. In contrast, tissue repair usually results in a fixed tissue architecture involving scar formation. Scars generally do not reestablish tissue function and may also exhibit structural abnormalities at the injury site.
Regeneration
All animals have varying degrees of...
Regeneration
All animals have varying degrees of...
3.9K
Adherens Junctions
4.7K
Strong contact points between adjacent cells anchor them to each other, forming tissues. Such anchoring junctions are of two types – adherens junctions and desmosomes. Adherens junctions are abundant in tissues such as epithelium and endothelium, forming a continuous zone of adhesion called the adhesion belt. In other tissues, such as heart muscle, they appear as clusters, linking the cells to produce coordinated heart muscle contraction.
Adherens Junctions are Dynamic
Adherens Junctions are Dynamic
4.7K


