在炎症途径中以知识图驱动的血红-TLR4相互作用的治疗
Dhruv C Rathod1, Negin Sadat Babaiha2, Elena Kullmann1
1Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, Bonn, Germany.
Journal of inorganic biochemistry
|August 27, 2025
概括
通过托尔类受体4 (TLR4) 激活炎症通路. 这项研究扩展了血红蛋白知识图 (HemeKG),包括新的血红蛋白-TLR4相互作用,改善了对炎症和代谢失调的理解.
科学领域:
- 生物化学
- 免疫学
- 生物信息学
背景情况:
- 血是一种含铁的分子, 对于氧气运输和电子转移至关重要.
- 血红素还可以作为细胞外信号分子,调节炎症反应.
- 血水平升高可以触发炎症信号,特别是通过Toll-like受体4 (TLR4).
研究的目的:
- 系统地扩展血红素知识图 (HemeKG) 以最近的关于血红素-TLR4相互作用的发现.
- 整合新发现的分子实体参与血红介导炎症.
- 为了解血红素驱动的炎症途径提供一个增强的平台.
主要方法:
- 使用生物表达语言 (BEL) 标准进行文献整理和验证.
- 将新的分子实体 (AP-1,IL-12,CD80,CD86,CXCL1) 整合到HemeKG中.
- 使用KEGG,Reactome和WikiPathways数据库进行路径丰富分析.
主要成果:
- 在HemeKG框架中成功集成新型分子实体.
- 路径丰富分析证实了TLR4信号级联的显著参与.
- 更新后的HemeKG可以更好地显示血红-TLR4相互作用.
结论:
- 扩展的HemeKG为研究heme-TLR4信号提供了一个综合和预测资源.
- 这项研究加深了对血红素如何影响炎症反应的理解.
- 这些发现有助于了解与血红素驱动的炎症相关的代谢失调.
相关概念视频
Inflammatory Response
7.0K
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,...
7.0K
NF-κB-dependent Signaling Pathway
7.8K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
7.8K
The JAK-STAT Signaling Pathway
9.2K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
9.2K
Extrinsic and Intrinsic Pathways of Hemostasis
9.2K
Blood clotting or coagulation involves extrinsic and intrinsic pathways, which ultimately merge into the common pathway, forming a fibrin clot.
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
The Extrinsic Pathway
The extrinsic pathway of coagulation is typically initiated by tissue damage that exposes blood to tissue factor (TF), a protein released by the damaged tissue cells outside the blood vessels—this interaction with TF triggers biochemical reactions involving specific clotting factors. The key player here is Factor VII, which...
9.2K
Hedgehog Signaling Pathway
7.5K
The Hedgehog gene (Hh) was first discovered due to its control of the growth of disorganized, hair-like bristles phenotype in Drosophila, much like hedgehog spines. Hh plays a crucial role in the development of organs and the maintenance of homeostasis in both invertebrates and vertebrates. However, while Drosophila has only one Hh protein, mammals have multiple functional Hedgehog proteins - Sonic (Shh), Desert (Dhh), and Indian Hedgehog (Ihh). All of these homologous proteins have adapted to...
7.5K
Inflammatory Response II: Inflammatory Exudate and Tissue Repair
5.6K
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...
5.6K


