核孔はPOM121駆動のE2F1,MYC,AR核輸入を増やすことで致死性前立腺がんを促進する
Veronica Rodriguez-Bravo1, Raffaella Pippa1, Won-Min Song2
1Cancer Biology Department, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; Medical Oncology Department, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA; Pathology Department, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
Cell
|August 14, 2018
まとめ
核毛孔複合体 (NPC) は細胞輸送を調節しますが,その癌の役割は不明です. 前立腺がん (PC) の重要なNPCタンパク質であるPOM121をターゲットにすることで,腫瘍の成長を抑制し,生存率を向上させます.
科学分野:
- 分子生物学
- 癌 研究
- 細胞生物学
背景:
- 核孔複合体 (NPC) は,核と細胞質の間の分子輸送を調節するために不可欠です.
- 癌の進行,特に前立腺癌 (PC) にNPCとその成分であるヌクレオポリン (Nups) の特定の役割はよく理解されていません.
- 癌におけるNPCの機能を理解することは,新しい治療戦略の開発に不可欠です.
研究 の 目的:
- ヒト前立腺がん (PC) の進行におけるヌクレオポリン (Nups) の役割を調査する.
- PCの攻撃性に寄与する特定のNUPを特定し,その背後にあるメカニズムを探求する.
- 致死性PCにおけるNPC媒介核輸入を標的とした治療の可能性を評価する.
主な方法:
- 原発性から転移性の人間の前立腺がんにおけるNupsの進化的トランスクリプトミックの分析.
- アグレッシブなPCモデルにおけるアップレギュレートされたNupsの機能喪失遺伝子スクリーニング.
- POM121阻害が腫瘍性およびPC特異的転写因子核輸入に与える影響を調査する.
- NPC規制による核輸入抑制の臨床前試験
主要な成果:
- POM121は攻撃性PCで上位調節された重要なヌクレオポリンとして特定され,PCの攻撃性に有意に寄与しました.
- POM121は,腫瘍性因子 (E2F1,MYC) とPC特異因子 (AR-GATA2) の輸入依存性核輸送を促進する.
- POM121媒介の核インポート軸の抑制により,腫瘍の成長が低下し,標準治療の有効性が回復し,臨床前のPCモデルでは生存率が改善されました.
結論:
- NPCは前立腺がんの進行に重要な役割を果たします.
- POM121は 核輸入の重要な仲介者であり PCの攻撃性を駆り立てます
- 致死性前立腺がんや他の癌に対する 治療戦略として NPC規制の原発をターゲットにしています
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