经典的单细胞本体发生决定了它们作为组织巨细胞的功能和命运
Sébastien Trzebanski1, Jung-Seok Kim1, Niss Larossi1
1Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot 76100, Israel.
Immunity
|May 15, 2024
概括
两种不同的经典单细胞 (CM) 子集,来自粒细胞-单细胞-原始细胞 (GMPs) 和单细胞-状细胞原始细胞 (MDPs),在小鼠中显示出差异性的组织播种和巨细胞分化.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 血液形成 血液形成 血液形成
背景情况:
- 经典单细胞 (CMs) 是循环中的过渡性髓状免疫细胞.
- 有证据表明,CMs起源于不同的原始细胞群:粒细胞-单细胞-原始细胞 (GMP) 和单细胞-状细胞-原始细胞 (MDP).
研究的目的:
- 在小鼠中识别表面标记物来分离GMP和MDP衍生的CM.
- 为了功能性地描述这些不同的CM子集 (GMP-Mo和MDP-Mo).
- 确定它们对外围组织和巨细胞群的贡献.
主要方法:
- 使用新型表面标记物分离小鼠CM子集.
- 收养细胞转移以追踪细胞命运.
- 在各种组织中GMP-Mo和MDP-Mo后代的功能性特征.
主要成果:
- 识别了表面标记物,以区分GMP-Mo和MDP-Mo.
- 这两个子集均具有同等扩展的恒常性CM后代,包括非古典单细胞和肠道巨细胞.
- GMP-Mo和MDP-Mo不同地填充了诸如硬膜和肺等组织.
- 这些子集分化为不同的间歇性肺巨细胞群.
结论:
- 在小鼠中存在两个功能上不同的CM子集,它们来自GMP和MDP.
- 这些子集表现出不同的组织特异性播种,并有助于巨细胞异质性.
- 在恒常状态和挑战期间,CM二分法影响了外围组织巨细胞群.
相关概念视频
Differentiation of Common Myeloid Progenitor Cells
3.2K
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...
3.2K
Immune Surveillance by NK Cells and Phagocytes
1.4K
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...
1.4K
Lineage Commitment
3.0K
Commitment is the process whereby stem cells:
3.0K
Classification of Leukocytes
1.9K
Leukocytes are classified into two groups based on the presence or absence of cytoplasmic granules. Granular leukocytes, which contain granules, belong to the myeloid lineage and are divided into three subtypes: neutrophils, eosinophils, and basophils. These cells are roughly spherical and characterized by the granules in their cytoplasm.
Neutrophils are the most abundant type of granular leukocytes, comprising 50-70% of all leukocytes. They feature small, evenly distributed granules and a...
Neutrophils are the most abundant type of granular leukocytes, comprising 50-70% of all leukocytes. They feature small, evenly distributed granules and a...
1.9K


