相关实验视频

Updated: Jun 29, 2025

Fibroblast-Derived 3D Matrix System Applicable to Endothelial Tube Formation Assay

Fibroblast-Derived 3D Matrix System Applicable to Endothelial Tube Formation Assay

Published on: December 26, 2019

双基酸酶-4-介导的纤维素蛋白处理唤起了一个亲生菌细胞外基质

Karina A Zeyer¹, Olivier Bornert¹, Valentin Nelea²

¹Department of Dermatology, Medical Faculty, Medical Center - University of Freiburg, Freiburg, Germany.

The Journal of investigative dermatology

|April 3, 2024

概括

改变的纤维内素沉积驱动纤维化. 双基酸酶-4抑制剂使纤维素和细胞外矩阵 (ECM) 组织正常化,揭示了纤维性疾病的新治疗标.

科学领域:

细胞外矩阵生物学细胞外矩阵生物学
纤维化病原体的发生
皮肤病学皮肤病学

背景情况:

纤维素对组织细胞外基质 (ECM),包括原和纤维素至关重要.
转变的纤维内素沉积是纤维性疾病的早期事件,导致无组织的ECM.
衰退性 Dystrophic Epidermolysis Bullosa 作为严重皮肤纤维化的一个模型.

研究的目的:

为了研究纤维肌菌素在纤维化发展中的ECM组织能力的作用.
探索二乙酶-4 (DPP-4) 和纤维菌素在纤维化中的沉积之间的联系.
为了确定针对纤维状况的DPP-4的潜在治疗策略.

主要方法:

在2D和3D中培养来自衰退性缩性表皮溶解公牛病患者的纤维细胞.
分析纤维素,纤维素和原 I 沉积.
使用蛋白质组学,DPP-4抑制剂和突变发生研究.

主要成果:

来自患者的纤维细胞显示纤维内素沉积的调节失调.
增加的DPP-4阳性纤维细胞与改变的纤维内素沉积相关.
DPP-4抑制使纤维素,纤维素和原I沉积正常化.
DPP-4通过纤维素结核N端的蛋白质分解来调节ECM沉积.

结论:

DPP-4在纤维化ECM失调中发挥着关键作用.
准DPP-4可以恢复正常的ECM组装,并为纤维化提供潜在的治疗方法.
这项研究阐明了DPP-4在纤维内素导向ECM组合中的健康和疾病的机制.

关键词:

原蛋白是一种原蛋白.结合物VII 结合物VII 结合物消化性表皮溶解牛皮.纤维素纤维素是一种纤维素.蛋白质溶解是一种蛋白质溶解.

更多相关视频

Ex Vivo Corneal Organ Culture Model for Wound Healing Studies

Ex Vivo Corneal Organ Culture Model for Wound Healing Studies

Published on: February 15, 2019

Fabricating a Kidney Cortex Extracellular Matrix-Derived Hydrogel

Fabricating a Kidney Cortex Extracellular Matrix-Derived Hydrogel

Published on: October 13, 2018

相关概念视频

Fibronectins Connect Cells with ECM

Fibronectins Connect Cells with ECM

Fibronectin is an adhesive glycoprotein present in the extracellular matrix of embryogenic and adult tissue. These molecules primarily aid in regulating cell motility and attachment. A fibronectin molecule is composed of two identical polypeptide chains attached to each other by a pair of disulfide bonds at the C-terminal.
Both proteoglycans and collagen are attached to fibronectin proteins, which, in turn, are attached to integrin proteins. These integrin proteins interact with transmembrane...

Intracellular Signaling Affects Focal Adhesions

Intracellular Signaling Affects Focal Adhesions

Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...

The Extracellular Matrix

The Extracellular Matrix

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...

Cell-matrix's Response to Mechanical Forces

Cell-matrix's Response to Mechanical Forces

In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue.
Anchoring junctions mechanically attach a cell to the...

Role of Matrix Metalloproteases in Degradation of ECM

Role of Matrix Metalloproteases in Degradation of ECM

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...

Overview of Cell-Matrix Interactions

Overview of Cell-Matrix Interactions

The extracellular matrix or ECM holds cells together to form a tissue and allows the cells within the tissue to communicate. ECM comprises proteins such as fibronectin, collagen, laminin, etc. The most abundant protein in this space is collagen. Collagen fibers are interwoven with carbohydrate-containing protein molecules called proteoglycans. ECM allows cell migration and provides a structural scaffold at cell adhesion that anchors the cell when the extracellular matrix proteins interact with...