从单细胞分化为巨细胞的表观遗传编程,并训练出先天免疫力
Sadia Saeed1, Jessica Quintin2, Hindrik H D Kerstens1
1Department of Molecular Biology, Faculties of Science and Medicine, Radboud Institute for Molecular Life Sciences, Radboud University, 6500 HB Nijmegen, Netherlands.
概括
单细胞分化成巨细胞是宿主防御的关键. 这项研究揭示了由表观遗传变化驱动的训练有素免疫力如何改变巨细胞的功能和易受感染的可能性.
科学领域:
- 免疫学 免疫学 免疫学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 细胞生物学 细胞生物学
背景情况:
- 单细胞分化成巨细胞对于宿主防御至关重要.
- 免疫学印记,如耐受性或训练免疫力,决定了巨细胞的功能和感染易感性.
- 了解这些过程对于开发新的免疫疗法至关重要.
研究的目的:
- 描述单细胞和差异化巨细胞 (天真,耐受,训练) 的转录组和表观组景观.
- 识别与训练免疫相关的关键途径和表观遗传特征.
- 为天生的免疫研究提供一个全面的资源.
主要方法:
- 使用高通量测序对转录组和表观组进行表征.
- 人体单细胞在体外分化成原始,耐受性和训练有素的巨细胞.
- 对基因表达,表观遗传修饰和转录因子结合部位的生物信息分析.
主要成果:
- 巨细胞表现出调节的炎症和代谢途径,包括减少的炎症酶激活.
- 由β-葡萄糖诱导的训练免疫,建立了一个独特的表观遗传特征,涉及增强剂和促进剂.
- 确定了特定于细胞类型的表观遗传位点和转录因子谱,区分细胞类型和治疗方法.
结论:
- 在训练免疫过程中,表观遗传重编程在塑造巨细胞功能方面发挥着重要作用.
- 这项研究提供了对人类先天免疫记忆背后的分子机制的宝贵见解.
- 生成的数据作为了解宿主防御和免疫记忆中的表观遗传调节的资源.
更多相关视频
07:42An In vitro Model to Study Heterogeneity of Human Macrophage Differentiation and Polarization
Published on: June 12, 2013
18.7K
09:32Isolation of Human Monocytes by Double Gradient Centrifugation and Their Differentiation to Macrophages in Teflon-coated Cell Culture Bags
Published on: September 9, 2014
72.5K
相关概念视频
Differentiation of Common Myeloid Progenitor Cells
3.1K
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
3.1K
Forced Transdifferentiation
1.5K
Transdifferentiation, also known as lineage reprogramming, was first discovered by Selman and Kafatos in 1974 in silkmoths. They observed that the moths’ cuticle-producing cells transformed into salt-producing cells. Many such cases of natural transdifferentiation occur in organisms. In humans, pancreatic alpha cells can become beta cells. In newts, the loss of the eye’s lens causes the pigmented epithelial cells to transdifferentiate into the lens cells.
Artificial...
Artificial...
1.5K
B Cell Activation and Differentiation
14.2K
The adaptive immune response, a sophisticated defense mechanism, relies on the activation and differentiation of B lymphocytes, or B cells. These processes enable our bodies to mount a tailored response against specific pathogens such as bacteria, free virus particles, toxins, and parasites.
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
14.2K
