纤维细胞子集的原始炎症反应对于适当的口腔和皮肤伤口愈合是必要的
Zhaoxu Chen1, Rahul Debnath1, Ifeoma Chikelu1
1Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Molecular oral microbiology
|October 30, 2023
概括
配对相关的homeobox-1 (Prx1) 血统纤维细胞通过对微生物的反应来促进伤口愈合. 这些细胞增强了巨细胞的招募和细菌清除,这对于组织修复至关重要.
科学领域:
- 细胞生物学 细胞生物学
- 免疫学 免疫学 免疫学
- 伤口治愈研究研究 伤口治愈研究
背景情况:
- 纤维细胞是异质的介质细胞,对组织完整性至关重要.
- 在伤口修复过程中,口腔纤维细胞在宿主微生物相互作用中的作用尚不清楚.
- Prx1Cre+纤维细胞是口腔粘膜和皮肤中的一个独特的子集.
研究的目的:
- 描述口腔粘膜和皮肤中的Prx1Cre+纤维细胞.
- 在体内调查它们对微生物产品的反应.
- 为了阐明它们在伤口愈合中的作用.
主要方法:
- 使用记者小鼠模型追踪Prx1Cre+纤维细胞.
- 收费类受体 (TLR) 的评估表达 2 和 4.
- 分析了NF-κB激活,细胞因子上调 (CXCL1,CCL2),并进行了基因特异性淘汰赛研究.
主要成果:
- Prx1Cre+纤维细胞表现出较高的TLR2和TLR4表达.
- 这些细胞在早期伤口愈合过程中表现出较高的NF-κB激活.
- 观察到CXCL1和CCL2的上调.
- 在Prx1Cre+纤维细胞中NF-κB淘汰会损害口腔和皮肤伤口愈合.
结论:
- Prx1系纤维细胞在治疗过程中发挥着至关重要的作用.
- 它们通过对微生物刺激做出反应来促进伤口的修复.
- 这些纤维细胞增强巨细胞的招募和细菌的清除,解决炎症.
相关概念视频
Phases of Wound Repair
6.0K
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...
6.0K
Introduction to Fibroblasts
3.1K
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...
3.1K
Inflammation
53.7K
Overview
53.7K
Inflammatory Response
2.1K
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,...
2.1K
Inflammatory Response I: Vascular and Cellular
11.2K
The inflammatory response is the body's defense against infection, injury, or irritation from bacteria, trauma, toxins, or heat. Inflammation helps locate and destroy pathogens and remove damaged tissue elements to heal the body. During this initial phase, fluid, blood products, and nutrients migrate to the injured area, resulting in redness, heat, swelling, ache, and loss of function. Moreover, signs of systemic inflammation include fever, increased WBC count, malaise, anorexia, nausea,...
11.2K
Inflammatory Response II: Inflammatory Exudate and Tissue Repair
5.0K
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...
5.0K


