関連する実験動画
Updated: Jul 18, 2026

08:33
Vampiric Isolation of Extracellular Fluid from Caenorhabditis elegans
Published on: March 19, 2012
アポプトティック細胞からの"徴募信号":静かな食事への招待
1Carter Immunology Center and the Department of Microbiology, University of Virginia, Charlottesville, VA 22908, USA. ravi@virginia.edu
Cell
|July 3, 2003
まとめ
細胞の包囲機構は,虫から哺乳類まで,種を超えて保存されています. 死亡する細胞は,アポトーシス中の効率的な死体のクリアランスのためにファゴサイトを惹きつけるために,募集とエイト-ミー信号を使用します.
科学分野:
- 細胞生物学 細胞生物学
- 発達生物学 発達生物学について
- 免疫学 免疫学とは
背景:
- アポプトシス細胞のクリアランスは,組織ホメオスタシスと炎症の予防に不可欠です.
- 保存された飲み込み機械は,無脊椎動物から哺乳類まで動作します.
- 垂死する細胞によるファゴサイトの募集と認識の正確なメカニズムは,現在調査中です.
研究 の 目的:
- アポプトティック細胞の包囲の保存されたメカニズムを調査する.
- ファゴサイト相互作用における細胞死信号の役割を明らかにする.
- アポトーシスと死体のクリアランスの間の調整を理解するために.
主な方法:
- 異なる種間の飲み込み経路の比較分析.
- モデル生物における分子および遺伝学的研究.
- 信号媒介の相互作用を研究するための細胞ベースの測定法.
主要な成果:
- 進化的に保存された飲み込み機構の証拠.
- アポプトシス細胞が使用する募集およびエイトミー信号の識別.
- アポトーシスの実行と死体のクリアランスの間の密接なリンクの実証.
結論:
- アポプトティック細胞の吸収は,保存された分子基盤を持つ基本的な生物学的プロセスです.
- 死ぬ細胞は,特定の分子シグナルを通して,自分の除去を積極的にシグナルします.
- 効率的な死体除去は厳格に規制され,アポプトティックプロセスと統合されています.
関連する概念動画
Overview of Cell Death
Cell death is an essential process where the body gets rid of old or damaged cells. Cell proliferation and death need to be balanced, as an imbalance between the two may lead to cancer or autoimmune diseases.
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the 20th century...
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the 20th century...
Phagocytosis of Apoptotic Cells
Cells undergoing apoptosis form apoptotic bodies that must be removed immediately to prevent inflammation, autoimmune diseases, and necrosis. Phagocytosis is carried out by professional phagocytes such as macrophages or immature dendritic cells. Non-professional phagocytes such as epithelial cells and fibroblasts also take part in this process; however, they are not as effective as professional phagocytes.
Normal cells contain receptors that prevent them from being recognized by phagocytes.
Normal cells contain receptors that prevent them from being recognized by phagocytes.
Autophagic Cell Death
Christian de Duve discovered “autophagy,” a process in which cellular components are engulfed by membrane-bound organelles called autophagosomes. The autophagosomes then fuse with lysosomes to digest the enclosed contents. Autophagy is generally activated in cells to prevent cell death. However, cell death is triggered when the damage is beyond repair.
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and pro-apoptotic...
Autophagy and Apoptosis
Autophagy can activate apoptosis. In normal conditions, the autophagy activating protein Beclin-1 and pro-apoptotic...

