相关实验视频
Updated: Jan 11, 2026

Isolation of Murine Lymph Node Stromal Cells
Published on: August 19, 2014
纤维细胞FLT3L支持淋巴结树突细胞在毛囊间的利基
Sunny Z Wu1, Ryan S Lane1, Christopher Davidson1
1Ophthalmology and Immunology, Genentech, South San Francisco, CA, USA.
淋巴结中的Gremlin1-表达性纤维质网状细胞 (FRC) 提供Fms类的氨酸激酶3连接体 (FLT3L),对树突细胞 (DC) 稳定和功能至关重要. 这一发现澄清了支持DC发育和免疫反应的利基.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 发展生物学 发展生物学
背景情况:
- 在二次淋巴体器官 (SLOs) 中的树突细胞 (DC) 稳定对于免疫监测至关重要.
- 类似FMS的氨酸激酶3连接体 (FLT3L) 是DC开发和维护的关键细胞因子.
- 在SLO中FLT3L的特定细胞源和利基在很大程度上仍未定义.
研究的目的:
- 为了确定FLT3L负责维持淋巴结中DC恒温的 stromal细胞源.
- 阐明该源支持DC发展,生存和功能的机制.
- 研究FLT3L源对适应性免疫反应的影响.
主要方法:
- 利用一种新的遗传模型追踪和操纵Gremlin1 (GREM1) 表达细胞.
- 采用空间转录学和细胞光测量用于细胞定位和分子分析.
- 在基因改造模型中对免疫和感染后评估的T细胞反应.
主要成果:
- 鉴定出表达GREM1的纤维细胞网状细胞 (FRC) 作为淋巴结中FLT3L的主要来源.
- 证明GREM1+FRC衍生FLT3L支持DC前体 (preDCs) 和常规DCs (cDCs) 的扩散和生存.
- 表明GREM1+FRC衍生FLT3L的丧失会损害DC激活和随后的T细胞对抗原的反应.
结论:
- GREM1+ FRCs构成一个关键的结构,支持DC恒温和淋巴结中的功能.
- 由GREM1+FRCs产生的FLT3L对于维持follicular区内的preDC和cDC种群至关重要.
- 这些发现揭示了DC群体和适应性免疫的 stromal 细胞调节的关键机制.
更多相关视频
07:39Isolation of CD4+ T-cells and Analysis of Circulating T-follicular Helper cTfh Cell Subsets from Peripheral Blood Using 6-color Flow Cytometry
Published on: January 7, 2019
07:07Evaluation of T Follicular Helper Cells and Germinal Center Response During Influenza A Virus Infection in Mice
Published on: June 27, 2020
相关概念视频
Introduction to Fibroblasts
Lymphoid Cells and Tissues
Lymphoid cells consist of various types of immune system cells. These include B and T lymphocytes, which are responsible for producing antibodies and killing infected cells, respectively. Dendritic cells act as messengers between the innate and adaptive...
Cells of the Adaptive Immune Response
Detailed Structure and Function of Lymph Nodes
From a histological perspective, lymph nodes can be split into two main areas: the superficial cortex and the deep medulla. The outer cortex is populated by dendritic cells, macrophages, and B lymphocytes, which are densely packed into follicles. When these B-lymphocytes are presented...
Primary Lymphoid Organs
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...