IL-11のシグナル伝達抑制は,哺乳類の健康と寿命を延長する
Anissa A Widjaja1, Wei-Wen Lim2,3, Sivakumar Viswanathan2
1Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore, Singapore. anissa.widjaja@duke-nus.edu.sg.
Nature
|July 17, 2024
まとめ
炎症を誘発するサイトカインであるインタールウィキン-11 (IL-11) は老化と寿命に悪影響を及ぼします. IL- 11を抑制することで,マウスの健康状態が改善され,骨の脆弱性が減少し,寿命が大幅に延長されました.
科学分野:
- 老化と長寿に関する研究
- 免疫学と炎症
- 分子生物学と細胞生物学
背景:
- 老化は炎症と健康と寿命の低下によって特徴付けられます
- ERK,AMPK,mTORC1のような重要な細胞経路は 老化過程において重要な役割を果たします
- 炎症誘発性サイトカインであるインタールウィキン-11 (IL-11) は,年齢とともに上昇する.
研究 の 目的:
- 年齢に関連する疾患と寿命における IL-11の役割を調査する.
- IL-11が健康と長寿に 負の影響を及ぼすかどうか
- 老化におけるIL-11抑制の治療の可能性を調査する.
主な方法:
- 老齢マウスにおけるIL-11の増調を研究した.
- マウスのIl11とIl11ra1の遺伝子削除を活用した.
- 老いたマウスに抗IL-11治療を施した.
- 評価された代謝機能,多発性,脆弱性,寿命.
主要な成果:
- IL-11は老いたマウスで上位調節され,ERK-AMPK-mTORC1軸を調節する.
- Il11またはIl11ra1の削除は,年齢による衰弱と弱さから守られています.
- 抗IL-11治療は代謝,筋肉機能を改善し,老化バイオマーカーを減少させた.
- 遺伝的IL-11の消去により,マウスの寿命は平均24. 9%延長されました.
- 抗IL-11治療は,雄 (22. 5%) と雌 (25%) のマウスの平均寿命を延ばした.
結論:
- 炎症を誘発するサイトカインIL-11は哺乳類の健康と寿命に重要な役割を果たします.
- IL-11の阻害は,年齢関連の病理に対する潜在的な治療戦略です.
- 現在,線維症の臨床試験中の抗IL-11治療は,老化介入のための翻訳的アプローチを提供することができます.
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