柯林在脊椎动物天生的免疫力中的新角色
Douglas M McLaurin1, Sara K Tucker1, Shanzida J Siddique1
1Department of Cell and Molecular Biology, The University of Mississippi Medical Center, Jackson, Mississippi, USA.
概括
林蛋白对于脊椎动物的天生的免疫力至关重要. 研究表明,林缺乏会损害免疫基因调节和对细菌触发物如脂多糖 (LPS) 的反应.
科学领域:
- 分子生物学分子生物学
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 林蛋白是核蛋白,参与鱼体组装和核糖核蛋白生物发生.
- 林已知在微RNA生产,蛋白质修饰 (酸化,SUMOylation) 和应激反应中的作用.
- 在植物中,可林调节免疫基因和压力诱导的防御机制.
研究的目的:
- 研究林在脊椎动物天生的免疫系统中的新功能.
- 阐明林在调节脊椎动物免疫相关基因和应激反应中的作用.
主要方法:
- 利用了人类纤维细胞细胞系,因RNA干扰引起的可林缺乏症.
- 使用CRISPR-Cas9基因编辑生成了斑马鱼可林淘汰模型.
- 进行了转录基因分析,以识别在可林缺乏模型中差异表达的基因.
- 挑战斑马鱼用脂聚糖 (LPS) 的可林突变体,以评估体内免疫反应.
主要成果:
- 转录组分析显示,在人类和斑马鱼可林缺乏模型中,免疫相关基因的显著失调.
- 斑马鱼可林突变体在体内受到LPS的挑战时表现出减弱的免疫反应.
- 这些发现凸显了可林在跨物种天生的免疫力中的保留作用.
结论:
- 林在脊椎动物中发挥着至关重要的新作用,调节免疫相关基因的表达.
- 林对于对细菌刺激产生有效的先天性免疫反应至关重要.
- 对可林在天生的免疫调节机制的进一步研究对于动物和人类的健康都是有必要的.
相关概念视频
Cells of the Innate Immune Response
1.1K
The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
1.1K
Role Of Notch Signalling In Intestinal Stem Cell Renewal
2.0K
Notch signaling was first discovered in Drosophila melanogaster, where it is involved in cell lineage differentiation. Notch signaling regulates the maintenance and differentiation of intestinal stem cells or ISCs by controlling the expression of atonal homolog 1 or Atoh1. Atoh1 directs cells to differentiate into secretory cells.
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
Direct cell-to-cell contact is needed for the activation of Notch signaling. The signal is initiated when a notch ligand binds to a receptor on an adjacent cell, also...
2.0K
Immune Response Against Viral Pathogens
464
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
464
Immune Surveillance by NK Cells and Phagocytes
918
Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
918
Humoral Immune Responses
69.9K
Overview
69.9K
Cells of the Adaptive Immune Response
625
The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
625


