氨基功能化奇多/dECM复合物通过调节氧化应激和炎症,促进皮肤再生和毛囊激活
Yu-Jin Kim1, Seokheon Hong2, Jae Hwi Lee2
1Biomaterials Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea.
Advanced healthcare materials
|December 3, 2025
概括
一种由氨基激活的甲基基 (aaCMC) 和水解脱细胞化细胞外基质 (h-dECM) 的新局部复合物有效地治疗炎症性脱发. 这种生物活性配方可以减少氧化应激和炎症,同时促进头皮再生.
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.
- 皮肤病学 皮肤病学
背景情况:
- 头皮炎症导致头发脱发,目前的治疗方法往往不够治疗.
- 现有的治疗方法专注于刺激头发生长,忽视了潜在的氧化应激和免疫损伤.
- 需要一种新的治疗方法来解决炎症性脱发的多面性质.
研究的目的:
- 开发和评估一种新的局部生物活性复合物,用于治疗炎症性脱发.
- 为了研究复合物的抗氧化,免疫调节和细胞外基质 (ECM) 重塑性质.
- 在体内评估复合物在促进头皮修复和毛囊再生方面的有效性.
主要方法:
- 采用双重超临界流体系统,制备了氨基激活的碳甲基 (aaCMC) 和液化脱细胞化细胞外基质 (h-dECM).
- 在体外研究中评估了抗氧化活性 (ROS水平,p38酸化),免疫调节作用 (细胞因子分泌) 和ECM表达 (原,纤维素).
- 活体内疗效在UVB诱导的头皮损伤小鼠模型中进行了评估,将复合物与氧化进行了比较.
主要成果:
- 在aCMC + h-dECM复合物体内显示出显著的抗氧化和免疫调节作用.
- 它减少了反应性氧物种 (ROS) 和抑制了皮肤乳头细胞中的衰老途径.
- 复合物在体内加速了表皮修复和毛囊再生,表现优于minoxidil.
结论:
- CMC + h-dECM复合物是一种用于头皮平衡的多功能再生平台.
- 它通过调节ROS,调节免疫力和支持ECM,为炎症性脱发提供了一个有希望的治疗替代方案.
- 这种方法解决了关键的病理机制,与传统单一疗法不同.
更多相关视频
10:05Stimulation of Stem Cell Niches and Tissue Regeneration in Mouse Skin by Switchable Protoporphyrin IX-Dependent Photogeneration of Reactive Oxygen Species In Situ
Published on: May 8, 2020
2.2K
10:49Doxycycline Loaded Collagen-Chitosan Composite Scaffold for the Accelerated Healing of Diabetic Wounds
Published on: August 21, 2021
4.9K
相关概念视频
The Extracellular Matrix
65.0K
Overview
65.0K
Introduction to Fibroblasts
3.9K
Rudolph Virchow discovered spindle-shaped cells called fibroblasts in 1858. Inactive fibroblasts, called fibrocytes, become activated by various stimuli, such as growth factors and inflammatory cytokines. Activated fibroblasts play a crucial role in wound healing, inflammation, formation of new blood vessels, and cancer progression. Uncontrolled activation of fibroblasts results in fibrosis, the excess deposition of fibrous tissue, which can lead to scarring and affect normal organs. This...
3.9K
Radical Autoxidation
2.5K
The oxidation of an organic compound in the presence of air or oxygen is called autoxidation. For example, cumene reacts with oxygen to form hydroperoxide. Autoxidation involves initiation, propagation, and termination steps. Many organic compounds are susceptible to autoxidation—especially ethers in the presence of oxygen, which form hydroperoxides. Even though this reaction is slow, old ether bottles contain small amounts of peroxide, which leads to laboratory explosions during ether...
2.5K
The Extracellular Matrix
10.7K
Overview
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
In order to maintain tissue organization, many animal cells are surrounded by structural molecules that make up the extracellular matrix (ECM). Together, the molecules in the ECM maintain the structural integrity of tissue as well as the remarkable specific properties of certain tissues.
Composition of the Extracellular Matrix
The extracellular matrix (ECM) is commonly composed of ground substance, a gel-like fluid, fibrous components, and many structurally and functionally diverse...
10.7K
Role of Matrix Metalloproteases in Degradation of ECM
2.9K
Matrix metalloproteases (MMPs) are enzymes involved in the hydrolysis of proteins and glycoproteins of the extracellular matrix. MMPs are essential for the migration and proliferation of cells through the dense matrix network, throughout embryonic development, and throughout morphogenesis. The first MMP activity discovered was a collagenase in a tadpole's tail undergoing metamorphosis. The active collagen deposition and modifications lead to the morphogenesis of tadpoles into the adult...
2.9K
Extracellular Matrix
5.9K
Unlike epithelial tissue, which is composed of cells closely packed with little or no extracellular space in between, connective tissue cells are dispersed in a matrix. This extracellular matrix (ECM) is composed of fibrous proteins like collagen, elastin, and fibronectin in a ground substance consisting of interstitial fluid, cell adhesion proteins, and proteoglycans. The proteoglycans form a gel-like material in the spaces between cells and provide hydration, buffering, binding, and force...
5.9K
