CSF1R-CAR T细胞诱导CSF1R信号,并可以促进细胞的增殖
Aurora Callahan1, Xinyan Zhang2, Amber Wang1
1Department of Molecular Biology, Cell Biology, and Biochemistry, Brown University, Providence, RI 02903, USA.
Science signaling
|November 11, 2025
概括
化学抗原受体 (CAR) T细胞疗法可以触发目标癌细胞中的意外信号. 这项研究揭示了殖民地刺激因子1受体 (CSF1R) CAR T细胞诱导CSF1R信号,影响瘤细胞增殖.
科学领域:
- 免疫治疗是一种免疫疗法.
- 癌症生物学 癌症生物学
- 细胞信号传递 细胞信号传递
背景情况:
- 化学抗原受体 (CAR) T 细胞对血液癌症有效.
- 瘤对CAR T细胞结合的反应还没有得到充分的研究.
- 现有的CAR T细胞研究往往忽略了细胞信号传递.
研究的目的:
- 为了研究由CAR T细胞诱导的细胞信号.
- 为了比较CSF1R-CAR T细胞与CD19-CAR T细胞的目标细胞反应.
- 阐明CAR诱导的目标细胞信号传递的机制.
主要方法:
- 使用SILAC培养,胺丰富和LC-MS/MS分析.
- 将向CSF1受体 (CSF1R) 的CAR T细胞与CD19CAR T细胞进行了比较.
- 使用小分子抑制剂来探测信号通路.
主要成果:
- CSF1R-CAR T细胞结合诱导了CSF1R表达细胞中的CSF1R类信号传递.
- 在CD19-CAR T细胞结合时没有观察到目标细胞信号.
- 由CAR诱导的CSF1R信号取决于CSF1R激酶活性,而不是T细胞激活.
- CSF1R-CAR T细胞根据作用因子与目标的比率调节了细胞的增殖.
结论:
- 汽车T细胞结合可以诱导目标细胞的意外信号.
- 这种细胞信号是抗原依赖的,由细胞自身的受体介导.
- 了解CAR诱导的细胞信号传递对于优化CAR T细胞治疗疗效至关重要.
相关概念视频
Regulation of Hematopoietic Stem Cells
3.9K
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
3.9K
Differentiation of Common Myeloid Progenitor Cells
3.9K
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...
3.9K
T Cell Types and Functions
2.1K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
2.1K
TGF - β Signaling Pathway
10.4K
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
10.4K
T Cell Activation and Clonal Selection
14.6K
T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
Naive T cells that have not yet encountered an antigen express two primary CD...
14.6K


