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  11. 相互の細胞-ecmダイナミクスは,自発的な卵泡パターンの基礎となる細胞上の流動性を生み出します.

相互の細胞-ECMダイナミクスは,自発的な卵泡パターンの基礎となる細胞上の流動性を生み出します.

Karl H Palmquist1, Sydney F Tiemann1, Farrah L Ezzeddine2

  • 1Laboratory of Morphogenesis, The Rockefeller University, New York, NY 10065, USA.

Cell
|May 13, 2022

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PubMed で要約を見る

まとめ
この要約は機械生成です。

収縮性皮膚細胞と細胞外マトリックス (ECM) は,鳥の皮膚発達の過程で,自己組織化して秩序あるパターンを形成する. 細胞とECMの相互作用によって引き起こされるこのプロセスは,組織パターンの流体不安定性メカニズムを明らかにします.

科学分野:

  • 発達生物学
  • 細胞メカニズム
  • 組織工学

背景:

  • 脊椎動物の胚形成は 細胞の行動の調整によって複雑な組織が形成される.
  • 鳥の皮の卵泡の組み立ては皮膚の機械的な力に依存しますが,開始メカニズムは不明です.

研究 の 目的:

  • 細胞のメカニズムが 鳥の皮膚に 毛皮のパターンを 作り出す仕組みを 研究する
  • パターン形成における皮膚細胞と細胞外マトリックス (ECM) の相互作用を理解する.

主な方法:

  • 分離された鳥類の皮膚細胞とコラーゲンを用いて,卵泡のパターニング開始を再構成する.
  • 細胞とECMの相互作用と機械的再配置の実験観察
  • 活性収縮流体としての細胞-ECMダイナミクスの理論モデル化.

主要な成果:

  • 縮小性皮質細胞は ECMを活性的に再配置し,細胞の並べ替えを増加させます.
  • 機械的に繋がっていない細胞集団は 長い距離の秩序を持つ 秩序ある連続体へと変容します
  • オーダーされた細胞-ECM層は,自発的に規則的なパターンを形成する活性収縮液の振る舞いを表しています.

結論:

  • 細胞レベルのオーダーリングを生成するために,メゼンキマのダイナミクスと細胞-ECMの相互作用は極めて重要です.
  • 液体の不安定なメカニズムは 卵泡形成中に組織レベルでのパターンを誘導します
  • このプロセスは,他の形態学的対称性破裂イベントに関連している可能性があります.
キーワード:
活性軟質生体物理学収縮性出現する細胞外マトリックスメカニクス機械感知モルフォゲネシス多細胞性オーガノゲネシス周期的なパターニング自己組織化皮膚について

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