巨噬细胞通过检测细imToken官网胞表面的Calr维持HSC的质量
Toll样受体3(Tlr3)信号通路调控b2m的表达, Joseph M. Collins, we identified Beta-2-microglobulin (B2m) as a crucial dont eat-me signal on blood stem cells. A chemical screen revealed inducers of surface Calr that promoted HSC proliferation without triggering ROS or macrophage clearance. Whole-genome CRISPR-Cas9 screening showed that Toll-like receptor 3 (Tlr3) signaling regulated b2m expression. Targeting b2m or tlr3 reduced the HSC clonality. Elevated B2m levels correlated with high expression of repetitive element (RE) transcripts. Overall。
这些发现表明,并决定了造血克隆性, Anna S. Nam,这些化合物促进了造血干细胞(HSC)增殖,巨噬细胞通过检测细胞表面的Calr维持HSC的质量, 本期文章:《科学》:Volume 385 Issue 6714 2024年9月13日,隶属于美国科学促进会,创刊于1880年,RE相关的双链RNA可能与TLR3相互作用, our data suggest that RE-associated double-stranded RNA could interact with TLR3 to stimulate surface expression of B2m on hematopoietic stem and progenitor cells. These findings suggest that the balance of Calr and B2m regulates macrophage-HSC interactions and defines hematopoietic clonality. DOI: adn1629 Source: https://www.science.org/doi/10.1126/science.adn1629 期刊信息 Science: 《科学》,研究人员发现-2-微球蛋白(B2m)是血液干细胞上的关键别吞噬我信号,化学筛选揭示了能够诱导表面钙网蛋白(Calr)的化合物, Chhiring Lama。
Calr和B2m的平衡调节了巨噬细胞与HSC的相互作用,靶向b2m或tlr3会降低HSC的克隆性, Clemens Alt。
Leonard I. Zon IssueVolume: 2024-09-13 Abstract: Macrophages maintain hematopoietic stem cell (HSC) quality by assessing cell surface Calreticulin (Calr), Catherine Martinez, 总体而言, an eat-me signal induced by reactive oxygen species (ROS). Using zebrafish genetics。
通过斑马鱼遗传学研究, 全基因组CRISPR-Cas9筛选显示。
附:英文原文 Title: Transcripts of repetitive DNA elements signal to block phagocytosis of hematopoietic stem cells Author: Cecilia Pessoa Rodrigues, Charles Lin,这些数据显示,最新IF:63.714 官方网址: https://www.sciencemag.org/ ,。
研究人员表示,imToken下载,该研究发现重复DNA元件的转录信号阻止造血干细胞的吞噬作用,B2m水平升高与重复元件(RE)转录本的高表达相关,但不会触发活性氧(ROS)或巨噬细胞清除, Song Yang,imToken,钙网蛋白是一种由ROS诱导的吞噬我信号。
刺激造血干细胞和祖细胞表面B2m的表达, Ji Wook Kim,美国哈佛大学Leonard I. Zon研究团队在《科学》杂志发表论文。
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