微小環境は,細胞の状態,可塑性,および臓がんにおける薬剤反応を左右する
Srivatsan Raghavan1, Peter S Winter2, Andrew W Navia2
1Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Medical School, Boston, MA 02115, USA; Department of Medicine, Brigham and Women's Hospital, Boston, MA 02115, USA.
Cell
|December 10, 2021
まとめ
研究者らは,新しい管腺癌 (PDAC) 細胞状態と腫瘍微環境 (TME) を特定した. 細胞状態をモデルで操作することで 薬の脆弱性を明らかにし 癌の研究に新たな枠組みを提供することがわかりました
科学分野:
- 腫瘍学
- 分子生物学
- ゲノミクス
背景:
- 管性腺がん (PDAC) の予測的に有意なRNA発現状態は知られているが,その誘発因子,安定性,治療効果の関連性は不明である.
- これらの状態を理解することは,PDACの効果的な治療法の開発に不可欠です.
研究 の 目的:
- PDACにおけるRNA発現状態の誘発因子,安定性,治療反応関係を体系的に調査する.
- 細胞状態をインビボモデルとエクビボモデルに整合させるための枠組みを開発する.
主な方法:
- 転移したPDACバイオプシの単細胞RNAシーケンシングとマッチしたオルガノイドモデル.
- 培養物特有のバイアスを特定するために,in vivoおよびex vivoモデルの比較分析.
- 機能的実験で in vivo 関連因子を復元し,薬物反応を評価する.
主要な成果:
- 新しい中間PDAC転写細胞状態と独特の腫瘍マイクロ環境 (TMEs) の特定.
- TME信号の変化による癌細胞の転写状態における培養特有のバイアスの実証.
- 培養モデルにおける表現異質性の回復と細胞状態の可塑性の証拠
- 非遺伝的細胞状態の調節が 薬物反応に影響し 特定の状態の脆弱性を明らかにした証拠です
結論:
- 細胞状態をインビボとエクビボで調整するための枠組みが確立されました.
- PDACにおけるトランスクリプションの可塑性の要因が特定されました.
- 細胞状態の操作は PDAC の薬の脆弱性を明らかにし,ターゲットにすることができます.
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