ナノルメナルシグナルによる集団転移の調節
Emma D Wrenn1, Ami Yamamoto1, Breanna M Moore2
1Translational Research Program, Public Health Sciences and Human Biology Divisions, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA; Molecular and Cellular Biology Graduate Program, University of Washington, Seattle, WA 98195, USA.
Cell
|October 2, 2020
まとめ
腫瘍細胞のクラスターは エピゲンと呼ばれる 成長因子を小さな区画で生成し 転移性乳がんの成長を促します この信号伝達経路を妨害すると 侵襲的な癌の新たな治療標的となるかもしれません
科学分野:
- 腫瘍学
- 細胞生物学
- 癌 の 転移
背景:
- 集団的転移は腫瘍細胞の集約的な移動を伴う.
- 腫瘍細胞のクラスタリングの下流信号経路はよく理解されていません.
- 細胞結合はクラスター形成と転移によるコロニー形成に不可欠です
研究 の 目的:
- 腫瘍細胞群によって生成される 集団信号を特定し 転移植民を支える
- 集団的転移における成長因子エピゲンの役割を調査する.
- 乳がんの潜在的治療標的としてナノルメナルシグナリングを研究する.
主な方法:
- マウスとヒトの乳がんモデルを使用しました
- 腫瘍細胞群におけるエピゲンの役割を研究した.
- ナノルミナ細胞間隔と細胞間の結合を分析した.
- エピゲン・ノックダウン実験を行いました
- 基礎型2型と三重陰性乳がん細胞系を比較した.
主要な成果:
- 腫瘍細胞群は,成長因子エピゲンをナノルミナ内で生成し,濃縮する.
- ナノルミナは細胞間結合によって封じ込められ,マイクロビリのような突起で覆われています.
- エピゲン・ノックダウンにより,転移が顕著に減少し,クラスターは増殖から集団移動へと移行した.
- 基礎性2型三重陰性乳がん細胞は,メゼンキマ性細胞と比較して,ナノルメナル結合の破壊時に,より高いエピゲン発現と成長障害を示した.
結論:
- 細胞間コンパートメント内のエピゲン濃度によって媒介されるナノルメナルシグナリングは,転移性コロニゼーションをサポートする上で重要な役割を果たします.
- ナノルメナルシグナリングをターゲットにすることは,攻撃的な転移性乳がん,特に基礎型の2重陰性サブタイプに対する潜在的な治療戦略です.
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