加齢に伴う腎臓と急性腎障害
Karl A Nath1, Raman Deep Singh1, Anthony J Croatt1
1Division of Nephrology and Hypertension, Department of Medicine, Mayo Clinic Rochester, MN.
Journal of the American Society of Nephrology : JASN
|January 21, 2026
まとめ
細胞老化は細胞老化を通じて腎障害リスクを加速させる。老化細胞およびその分泌型表現型は、急性腎障害(AKI)および慢性腎臓病(CKD)への進行に寄与する。
科学分野:
- 老年医学
- 腎臓病学
- 細胞生物学
背景:
- 加齢は、急性腎障害(AKI)および慢性腎臓病(CKD)の主要な危険因子である。
- 不可逆的な細胞周期停止状態である細胞老化は、加齢および加齢関連疾患の主要な推進因子である。
- 老化細胞は、炎症および組織損傷を促進する老化関連分泌型表現型(SASP)を含む、 distinct な代謝および分泌プロファイルを示す。
研究 の 目的:
- 加齢、細胞老化、腎疾患の病因を結びつけるエビデンスをレビューする。
- 腎臓内の老化細胞の役割と、AKIおよびCKDへの移行への影響を議論する。
- 老化除去薬や老化様薬などの老化を標的とする潜在的な治療戦略を探求する。
主な方法:
- 加齢、老化、AKI、CKDに関する既存の文献のレビュー。
- SASPを含む老化の根底にある生物学的メカニズムの分析。
- 高齢者のAKIを前置する臨床的因子の議論。
主要な成果:
- 老化に関連する老化細胞の蓄積は、AKIリスクに大きく寄与する。
- 老化細胞からのSASPは、炎症、線維症、血管機能不全を促進し、腎障害を悪化させる。
- 老化は、AKIからCKDへの進行において重要な役割を果たす。
結論:
- 細胞老化は、加齢関連腎疾患の根底にある基本的なメカニズムである。
- 老化細胞およびそのSASPを標的とすることは、AKIおよびCKDの予防および治療のための有望な治療経路を提供する。
- 老化除去薬および老化様薬を含む老化除去療法は、高齢化人口における腎臓の健康を改善する可能性を秘めている。
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