皮質細胞の滑り込みによる神経感覚器官の形成
Christin S Kuo1, Mark A Krasnow2
1Department of Biochemistry, Stanford University School of Medicine, Stanford, CA 94305-5307, USA; Department of Pediatrics, Stanford University School of Medicine, Stanford, CA 94305-5307, USA; Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA 94305-5307, USA.
Cell
|October 6, 2015
まとめ
研究者らは肺の神経上皮質の形成過程で "スライディング"と呼ばれる 新しい細胞移動プロセスを発見しました この標的細胞の移動は,ある種の肺がんの転移の可能性を説明するかもしれない.
科学分野:
- 発達生物学
- 細胞生物学
- 肺の研究
背景:
- 皮質細胞は安定した位置と基礎膜の結合を維持する.
- 細胞の再編成は,インターケレーション,デラミネーション,または上皮-メゼンキマの移行を経由して起こる.
- 肺の神経上皮質 (NEBs) は,気管上皮質内の神経化されたクラスターである.
研究 の 目的:
- 肺神経皮質体の形成をマッピングする.
- NEBの発達に伴う細胞移動メカニズムを特定し,特徴づけること.
- このメカニズムが神経内分泌の肺がんの転移に及ぼす影響を調査する.
主な方法:
- 免疫の強化
- 血統追跡
- クローン分析
- ライブイメージング
主要な成果:
- "スライディング"と呼ばれる 新しい細胞移動モードが特定されました
- NEBの原始体は一時的に上皮質の特徴を失い,細胞間を移動する.
- プロジェニターは 支柱点に収束し,上皮の構造を再確立し,神経内分泌遺伝子を発現します.
- NEB形成の間,少量の先駆体増殖またはアポトーシスが観察されました.
結論:
- "スライディング"移住プログラムは NEBの発展に不可欠です.
- この標的型移行は,粘着と極性タンパク質のダウンレギュレーションを伴う.
- 神経内分泌の肺がんの転移の根底にあるのはスライダーメカニズムである.
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