発光信号は,細胞伝達と組織構造を,オルガノゲネシス過程で結びつける
Sevi Durdu1, Murat Iskar1, Celine Revenu1
1European Molecular Biology Laboratory Heidelberg, Meyerhofstrasse 1, 69117 Heidelberg, Germany.
Nature
|October 23, 2014
まとめ
組織構造は,臓器の発達中の細胞シグナル伝達に直接影響を与えます. マイクロルミナルの構造は繊維芽生殖成長因子 (FGF) を濃縮し,斑馬魚の細胞調整と臓器形成を強化します.
科学分野:
- 発達生物学 発達生物学について
- 細胞生物学 細胞生物学
- 組織工学は,組織工学である.
背景:
- 形質変異は,自己組織化を通じて,細胞集団を組織や臓器に形作ります.
- 3D培養における幹細胞は,複雑なオーガノイドを形成し,自己組織化の原理を強調しています.
- 分泌されるシグナル分子の調節は,細胞の微分化と組織発達に不可欠です.
研究 の 目的:
- 組織組立メカニズムが,オルガノゲネシス中の細胞外信号活動にどのようにフィードバックするかを調査する.
- 信号ダイナミクスを in vivo で制御する組織構造の役割を明らかにする.
- 細胞行動の調整を,発達中の組織内のシグナルグラデーションによって理解する.
主な方法:
- 移動するゼブラフィッシュの横行線原始のライブ画像を使用しました.
- マイクロルーメン組成の遺伝的阻害を働かせました.
- 信号応答を評価するために,レーザーマイクロパンクチャーの実験を行いました.
主要な成果:
- 繊維芽生殖成長因子 (FGF) の活動は,機械感覚器官の堆積率を制御する.
- FGFは,発達中の臓器の中心にあるマイクロルミナル構造の中に集中し,そのシグナリングを空間的に制限します.
- マイクロルミナは,FGFに対する細胞の反応を強化し,組織の裏側での細胞移動を調整します.
結論:
- マイクロルミナル構造は,組織構造とシグナリング活動との間のフィードバックのメカニズムを提供します.
- 発光信号は,発達中の組織内の細胞の通信を局所的に制限し,調整し,強化します.
- このメカニズムは,自己組織化生物系における信号伝達の制御のための潜在的に一般的な原理を提供します.
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