相关实验视频
Updated: Jan 13, 2026

06:55
Protocol to Create Chronic Wounds in Diabetic Mice
Published on: September 25, 2019
21.6K
德克丁-1介导信号传递的缺陷通过减弱的氧化应激和炎症反应促进烧伤愈合
Yuki Sato1, Hiromasa Tanno1, Toshiro Imai2
1Department of Translational Science for Nursing, Tohoku University Graduate School of Medicine, 2-1 Seiryo-machi, Aoba-ku, Sendai, Miyagi, Japan.
Burns : journal of the International Society for Burn Injuries
|October 28, 2025
概括
德克-1受体信号延迟烧伤愈合,增加炎症和氧化应激. 用拉米纳林阻断Dectin-1显著改善了小鼠的愈合,这表明了一种新的治疗方法.
科学领域:
- 伤口愈合研究研究研究
- 免疫学 免疫学 免疫学
- 皮肤病学 皮肤病学
背景情况:
- 炎症和氧化应激阻碍了烧伤伤口的修复.
- 与损伤相关的分子模式 (DAMPs) 通过像C型莱克受体 (CLRs) 这样的受体激活炎症途径.
- 德-1是一种CLR,促进炎症性细胞因子和反应性氧物种 (ROS) 的产生,可能阻碍愈合.
研究的目的:
- 为了研究Dectin-1在烧伤愈合中的作用.
- 为了评估使用拉米纳林的Dectin-1抗剂的治疗潜力.
主要方法:
- 在野生型 (WT) 和Dectin-1-deficient (KO) 小鼠中造成全厚烧伤.
- 分析了伤口关闭,颗粒组织,血管生成和炎症标志物.
- 局部施用拉米纳林或载体,以评估其对烧伤愈合的影响.
主要成果:
- 与WT小鼠相比,Dectin-1 KO小鼠表现出明显增强的伤口关闭,颗粒组织形成和血管生成.
- 德克-1缺乏减少了炎症性细胞因子 (TNF-α,IFN-γ) 和氧化损伤标志物 (4-HNE).
- 局部用拉米纳林促进了烧伤伤的愈合.
结论:
- 德克-1信号传递通过炎症性细胞因子和氧化应激诱导抑制烧伤愈合.
- 局部的Dectin-1抗剂拉米纳林显示出作为一种新的治疗方法来治疗烧伤的希望.
更多相关视频
相关概念视频
Role Of Notch Signalling In Intestinal Stem Cell Renewal
2.4K
Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
2.4K
Notch Signaling Pathway
6.4K
The Notch signaling pathway is a major intracellular signaling pathway that is highly conserved over a broad spectrum of metazoan species. It stands unique from other intracellular signaling mechanisms in animals because notch protein itself acts as the receptor as well as the primary signaling molecule.
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
The Notch gene came into the limelight in 1914 after the discovery that its mutation in Drosophila melanogaster leads to a serrated (or "notched") wing margin phenotype. It was not...
6.4K
Phases of Wound Repair
7.8K
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...
7.8K
Clinical Applications of Epidermal Stem Cells
3.2K
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...
3.2K
Burn Injuries
4.1K
Burn injuries occur when the skin and underlying tissues are damaged due to exposure to heat, electricity, chemicals, radiation, or friction. They can vary in severity, from minor superficial burns to severe deep burns that can be life-threatening.
The damage results in the death of skin cells, which can lead to a massive loss of fluid. Dehydration, electrolyte imbalance, and renal and circulatory failure follow, which can be fatal. Burn patients are treated with intravenous fluids to offset...
The damage results in the death of skin cells, which can lead to a massive loss of fluid. Dehydration, electrolyte imbalance, and renal and circulatory failure follow, which can be fatal. Burn patients are treated with intravenous fluids to offset...
4.1K
Inflammatory Response
15.9K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
15.9K

