ドーパミン受容体アンタゴニストを含む,がん幹細胞を選択的に標的とする薬物の特定
Eleftherios Sachlos1, Ruth M Risueño, Sarah Laronde
1McMaster Stem Cell and Cancer Research Institute, Faculty of Health Sciences, McMaster University, Hamilton, ON, Canada.
Cell
|May 29, 2012
まとめ
抗精神病薬であるチオリダジンは,ドーパミン受容体に対抗することによって,がん幹細胞 (CSCs) を選択的に標的にします. この発見は,治療戦略として分化を使用することを支持し,潜在的ながんバイオマーカーとしてドーパミン受容体を強調しています.
科学分野:
- 腫瘍学 腫瘍学
- 幹細胞生物学 幹細胞生物学
- 薬理学 薬理学とは
背景:
- がん幹細胞 (CSC) の選択的標的化は,新しい治療法にとって極めて重要です.
- 人間のCSCおよび正常幹細胞の既存の測定は,生物学的スクリーニングに限定されています.
研究 の 目的:
- 選択的に標的を絞り,腫瘍細胞の分化を引き起こす小分子を特定する.
- CSCのドーパミン受容体を標的とする可能性を調査する.
主な方法:
- 発見プラットフォームを利用して,腫瘍性および正常なヒト多能幹細胞 (hPSC) を比較しました.
- 既知の化合物のスクリーニングされたライブラリで,微分を誘発する分子を識別する.
- CSCおよび正常幹細胞に対するチオリダジンの効果を in vitroおよびin vivoで調査した.
主要な成果:
- ティオリダジンは選択的に腫瘍細胞を標的とし,ヒトの体内CSCを損なう.
- 正常な血液幹細胞はチオリダジンによって影響を受けませんでした.
- CSCおよび乳がん細胞に発現するドーパミン受容体は,チオリダジンによって敵対されます.
結論:
- ネオプラスチックのhPSCは,CSCを標的とする薬物の識別に価値があります.
- 差別化は,腫瘍の自己再生を克服するための有効な治療戦略です.
- ドーパミン受容体は,様々な悪性腫瘍のバイオマーカーとして機能する可能性があります.
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