CD248与ECM相互作用,促进缩性痕的形成和发展
Lixia Zhang1, Yage Shang1, Chao Han1
1Department of Burns and Cutaneous Surgery, Xijing Hospital, Air Force Medical University, 127 Changle West Road, Xi'an, Shaanxi 710032, China.
Gene
|June 29, 2024
概括
CD248在缩性痕 (HS) 中受到上调,并驱动肌纤维细胞活性. 用抗体IgG78向CD248抑制了痕的形成,为HS提供了潜在的新治疗方法.
科学领域:
- 生物医学研究的研究.
- 皮肤病学 皮肤病学
- 纤维化研究纤维化.
背景情况:
- 缩性痕 (HS) 是由于受伤而产生的纤维状况.
- 目前的治疗方法缺乏针对HS肌纤维细胞失调的有针对性的方法.
- CD248在纤维性疾病中是一个潜在的治疗点.
研究的目的:
- 研究CD248在缩性痕 (HS) 发育中的作用.
- 评估在HS中准CD248的治疗潜力.
- 探索CD248与细胞外矩阵 (ECM) 组件的相互作用.
主要方法:
- 在HS和正常皮肤 (NS) 组织中对CD248表达的定量分析.
- 在体外研究中,使用从HS皮质中分离出来的肌纤维细胞.
- 在体内子耳朵模型中使用抗CD248抗体 (IgG78).
- 进行LC/MS分析和共同免疫沉以确定CD248-ECM相互作用.
主要成果:
- 在HS组织中,CD248表达显著上调,局限于α-SMA+肌纤维细胞.
- 在体外,抗CD248抗体 (IgG78) 抑制了肌纤维细胞的增殖,迁移和ECM合成.
- 在子耳朵模型中,IgG78治疗显著降低了HS的形成.
- 在HS组织中,CD248直接与纤维素 (FN) 和原I (COL I) 相互作用.
结论:
- CD248在HS的发展中起到亲纤维化的作用.
- CD248与FN和COL I等ECM组件的相互作用有助于其在HS中的作用.
- 抗CD248抗体疗法 (IgG78) 显示出治疗缩性痕的前景.
相关概念视频
Intracellular Signaling Affects Focal Adhesions
2.7K
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...
Some...
2.7K
The Extracellular Matrix
8.9K
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...
8.9K
Cell-matrix's Response to Mechanical Forces
2.6K
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...
Anchoring junctions mechanically attach a cell to the...
2.6K
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
Phases of Wound Repair
5.9K
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...
5.9K
TGF - β Signaling Pathway
7.3K
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
7.3K


