組織を横断した好酸球の専門化の時空間的アトラス
Yanan Hu1, Lianfu Wu2,3, Sihao Qu1
1Shanghai Institute of Immunology, Department of Immunology and Microbiology, and Center for Human Translational Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Nature immunology
|January 9, 2026
まとめ
マウス好酸球は、生息する場所や滞在期間に基づいて専門化する。この研究は、組織常在性が好酸球の多様性をどのように形成するかを明らかにし、健康と疾患におけるそれらの役割についての洞察を提供する。
科学分野:
- 免疫学
- 細胞生物学
- システム生物学
背景:
- 好酸球は、多様な機能を持つ主要な免疫細胞である。
- 異なる組織を横断したそれらの専門化は、よく理解されていない。
研究 の 目的:
- マウス好酸球の包括的なアトラスを作成する。
- 好酸球の不均一性と専門化を駆動する要因を定義する。
主な方法:
- 単一細胞トランスクリプトミクスおよびプロテオミクス。
- 高次元表面マーカー解析。
- 好酸球のinvivo運命追跡。
主要な成果:
- 好酸球のアイデンティティは、組織の手がかりと常在期間によって決定される。
- 長期間生存する腸内好酸球は、著しい多様化を示す。
- 短期間生存する肺好酸球と中間期間生存する結腸好酸球は、より均一である。
- 前駆細胞からの好酸球成熟を追跡する表面マーカーを同定した。
結論:
- 組織常在期間は、好酸球の成熟と多様化の重要な駆動因子である。
- この研究は、様々な状態における好酸球の状態を理解するための枠組みを提供する。
- 健康と疾患における好酸球の研究のための分子ツールキットを提供する。
関連する概念動画
Eukaryotic Compartmentalizations
One of the distinguishing features of eukaryotic cells is that they contain membrane-bound organelles, such as the nucleus and mitochondria, that carry out specialized functions. Since biological membranes are only selectively permeable to solutes, they help create a compartment with controlled conditions inside an organelle. These microenvironments are tailored to the organelle's specific functions and help isolate them from the surrounding cytosol.
For example, lysosomes in the animal cells...
For example, lysosomes in the animal cells...
Eukaryotic Compartmentalization
One of the distinguishing features of eukaryotic cells is that they contain membrane-bound organelles, such as the nucleus and mitochondria, that carry out specialized functions. Since biological membranes are only selectively permeable to solutes, they help create a compartment with controlled conditions inside an organelle. These microenvironments are tailored to the organelle's specific functions and help isolate them from the surrounding cytosol.
For example, lysosomes in the animal cells...
For example, lysosomes in the animal cells...
Microtubule Associated Proteins (MAPs)
Microtubule function and architecture are regulated by an array of specialized proteins called microtubule-associated proteins or MAPs. These proteins are widespread across different organisms and have conserved protein motifs, like the multi-TOG domain for tubulin binding found in the CLASP family of MAPs. Some MAPs are lineage-specific based on their conserved domains. Their functions depend upon the cytoskeletal architecture and cell type they are located within. In-plant cells, a specific...
Assembly of Complex Microtubule Structures
Complex microtubule structures are present in resting cells and in dividing cells. In resting cells, they are responsible for maintaining the cellular architecture, tracks for intracellular transport, positioning of organelles, assembly of cilia and flagella. They mediate the bipolar spindle assembly for chromosomal segregation and positioning of the cell division plate in dividing cells. The formation of microtubule complex structures depends on the cell type, cell stage, and cell function.
Centrosome Duplication
The primary microtubule organizing center (MTOC) in animal cells is the centrosome. A centrosome has two cylindrical centrioles at its core. Each centriole consists of nine sets of three microtubules held together by proteins. The centrioles are positioned at right angles to each other and surrounded by a shapeless protein cloud called the pericentriolar matrix, or pericentriolar material (PCM).
To ensure that each daughter cell receives a centrosome after cell division, centrosome duplication...
To ensure that each daughter cell receives a centrosome after cell division, centrosome duplication...
Eukaryotic Compartmentalization
One of the distinguishing features of eukaryotic cells is that they contain membrane-bound organelles, such as the nucleus and mitochondria, that carry out specialized functions. Since biological membranes are only selectively permeable to solutes, they help create a compartment with controlled conditions inside an organelle. These microenvironments are tailored to the organelle's specific functions and help isolate them from the surrounding cytosol.
For example, lysosomes in the animal cells...
For example, lysosomes in the animal cells...


