アンドロゲン受容体阻害は,BRAF/MEK標的治療に対する反応を促進する
Christopher P Vellano1, Michael G White2, Miles C Andrews2,3
1TRACTION Platform, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Nature
|June 15, 2022
まとめ
メラノーマの女性患者は,男性と比較して,BRAF/ MEK標的治療に有意に優れた反応を示した. アンドロゲン受容体経路を標的にすることで,両方の性別で治療効果が向上する可能性があります.
科学分野:
- 腫瘍学
- 癌 研究
- 薬理学について
背景:
- BRAF/MEKを標的とした治療は癌治療に変化をもたらしましたが 治療抵抗性という課題に直面しています
- 治療への反応に影響を与える要因を理解することは 革新的な戦略の開発に不可欠です
研究 の 目的:
- メラノーマの男性と女性の間で,BRAF/MEK標的治療に対する反応の違いを調査する.
- アンドロゲン受容体経路が治療反応と抵抗を媒介する役割を調査する.
主な方法:
- ネオアジュバンと転移したBRAF/MEK標的治療を受けた患者群の分析.
- 抗腫瘍活動とアンドロゲン受容体シグナル伝達の影響を評価するためにマウスモデルでの臨床前試験.
- アンドロゲン受容体のシグナル伝達に対する薬理学的抑制と誘導により,治療反応への影響を評価する.
主要な成果:
- 女性患者は,男性患者と比較して,重大な病理的反応と回復のない生存率が著しく高かった.
- 臨床前モデルでは,雄性マウスの抗腫瘍活性が低下し,アンドロゲン受容体の発現が増加した.
- アンドロゲン受容体のシグナル伝達を阻害すると,雄性マウスと雌性マウスの両方でBRAF/ MEK治療への反応が強化され,誘導は低下した.
結論:
- 性別によるBRAF/MEK標的治療に対する反応の違いは,メラノーマにおいて有意である.
- アンドロゲン受容体の経路は,BRAF/ MEK阻害剤の有効性を調節する上で重要な役割を果たします.
- アンドロゲン受容体経路をターゲットにすることで,抵抗を克服し,すべての患者の結果を改善する潜在的戦略を提示します.
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