非正規のFrizzled2経路は,上皮細胞-メゼンキーマの移行と転移を調節する
Taranjit S Gujral1, Marina Chan1, Leonid Peshkin1
1Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Warren Alpert 524, Boston, MA 02115, USA.
Cell
|November 24, 2014
まとめ
Frizzled2 (Fzd2) とWnt5a/bは転移性がんでは上昇し,上皮細胞-メゼンキーマ移行 (EMT) と細胞移動を誘導する. Fzd2を標的にすることは,腫瘍の成長と転移を抑制する有望な結果を示しています.
科学分野:
- 腫瘍学 腫瘍学
- 分子生物学は分子生物学である.
- 発達生物学 発達生物学とは
背景:
- Wnt信号は,胚の発達に不可欠です.
- Wnt信号の異常は結腸直腸がんと関連しています.
- 転移における特定のWnt経路成分の役割は調査中です.
研究 の 目的:
- 癌の転移におけるFrizzled2 (Fzd2) とWnt5a/bの役割を調査する.
- Fzd2が表皮質-メゼンキマ移行 (EMT) と細胞移動に影響を与える分子メカニズムを解明する.
- 臨床前がんモデルにおけるFzd2を標的とした治療の可能性を評価する.
主な方法:
- 癌細胞系および腫瘍におけるFzd2およびWnt5a/b発現の分析.
- Fzd2の機能を研究するための薬理学および遺伝子操作.
- EMTマーカー,細胞移動,侵入の評価.
- 異種移植モデルにおける抗Fzd2抗体の開発と試験.
- 予測シグネチャーを特定するための遺伝子発現プロファイリング.
主要な成果:
- Fzd2とWnt5a/bは,転移性がん細胞系と高度の腫瘍で上調される.
- Fzd2発現はEMTマーカーと相関しています.
- Fzd2は,非正規のFyn/Stat3経路を通じてEMTと細胞移動を促進する.
- Fzd2 調節された遺伝子シグネチャは,患者の転移と生存を予測します.
- アンチ-Fzd2抗体は,腫瘍の成長,転移,移住,および侵入を vivo で抑制しました.
結論:
- Fzd2とWnt5a/bは,癌の転移を促す上で重要な役割を果たしています.
- Fzd2/Fyn/Stat3経路は,EMTと細胞移動のための新しいメカニズムを表しています.
- Fzd2を抗体で標的にすることは,転移性がんに対する潜在的な治療戦略を提供します.
- この経路は,高Fzd2およびWnt5a/b発現腫瘍を有する患者に有益である可能性があります.
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