粘着コードは,組織形態変異の間に堅固なパターン形成を保証する
Tony Y-C Tsai1, Mateusz Sikora2, Peng Xia2
1Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Boston MA 02115, USA.
まとめ
ゼブラフィッシュのニューラルプロジェニター細胞は,カデリン発現とソニック・ヘッジホッグ・シグナルによって誘導される 微分細胞結合によって堅固なパターンを形成する. この相互作用は 細胞の再編成にもかかわらず 正確な組織発達を保証します
科学分野:
- 発達生物学
- 細胞生物学
- 神経科学
背景:
- 動物の発達には 細胞の正確な空間的および時間的な組織が必要です
- 頑丈なパターンの形成は不可欠です 特にゼブラフィッシュの発達中の脊髄のような ダイナミックな環境では
- ニューラルプロジェニターは,変数形質シグナル伝達と細胞の動きにもかかわらず,ステレオタイプパターンを確立しなければなりません.
研究 の 目的:
- 斑馬魚の脊髄における 頑丈な神経原始体の仕組みを調査する
- 細胞分類と組織組織を媒介する差分粘着モデルの証拠を提供する.
- この過程における特定のカデリンとモルフォゲン・グラディエントの役割を明らかにする.
主な方法:
- 3つの内生性ニューラルプロジェニータの粘着力と好みを直接測定する.
- カデリン (N-カデリン,カデリン11,プロトカデリン19) の細胞型特異的結合表現の分析
- ソニック・ヘッジホッグ・モルフォゲン・グラデントによる差分粘着コードの調節に関する調査.
主要な成果:
- 細胞間粘着の差異は細胞分類を媒介し,差異的粘着モデルを支持する.
- カデリンの結合表現は,ex vivoの同型偏好とin vivoの堅固なパターンを導きます.
- 微分粘着コードはソニック・ヘッジホッグ・モルフォゲン・グラデントによって制御される.
結論:
- 特定のカデリン結合によって媒介される差分結合は,堅固なニューラルプロジェニターパターニングの重要なメカニズムである.
- 粘着に基づく自己組織と形態素誘導パターンの相互作用は,堅固な組織形態変異を保証する.
- この研究は,ゼブラフィッシュの脊髄における 細胞粘着が発達パターンの強さにどのように貢献するかを明らかにしています.
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