身体老化を測定する「老化時計」を開発(Scientists Develop ‘Aging Clocks’ to Measure Body Decline)

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2026-05-08 中国科学院(CAS)

中国科学院などで構成される「Aging Biomarker Consortium(ABC)」の研究チームは、身体や臓器の老化速度を定量化する「老化クロック(Aging Clock)」システムを開発した。研究では、中国各地の18~91歳の健常者2019人から、DNAメチル化、RNA、タンパク質、代謝物、腸内細菌叢、脳画像、歩行解析など240項目以上のデータを収集し、深層学習を用いた「Digital Aging Twin」を構築した。特に複数オミクス情報を統合した「マルチモーダル老化クロック」は、平均誤差3.87年で生物学的年齢を予測できた。また、肝臓は40歳前後、脳は50歳前後で老化加速点を迎えるなど、臓器ごとに老化速度が異なることも判明した。さらに、血液凝固因子F13Bなどが血管老化を直接促進する要因であることを突き止めた。研究は、老化を単なる指標観察から予測・介入可能な対象へ転換する成果として注目され、将来的な個別化医療や健康寿命延伸への応用が期待される。

身体老化を測定する「老化時計」を開発(Scientists Develop ‘Aging Clocks’ to Measure Body Decline)
X-Age framework for multidimensional aging assessment and digital modeling. (Image by ABC)

<関連情報>

人間の老化に関するマルチモーダル時計 Multimodal clocks of human aging

Jiaming Li ∙ Beier Jiang ∙ Wei Zhang ∙ … ∙ Guoguang Zhao ∙ Weiqi Zhang ∙ Guang-Hui Liu
Cell  Published:May 8, 2026
DOI:https://doi.org/10.1016/j.cell.2026.04.025

Highlights

  • Multimodal clocks define a quantitative framework for human aging
  • Aging biomarkers and trajectories are highly conserved across multiple centers
  • Plasma proteomic signals provide a compact, sensitive readout of systemic aging
  • Coagulation-factor accumulation is identified as both a biomarker and driver of aging

Summary

Human aging is characterized by complex structural and functional decline, but quantifying its heterogeneity and assessing biological age remain challenges. We present the mCAS (multicentric Chinese aging standardized cohort) developed from 2,019 Chinese individuals aged 18–91 years. Integrating high-dimensional clinical, physiological, and molecular-level data, we constructed a three-tiered aging framework: the core capacity clock (CC-clock) to quantify clinical physiological decline, the multimodal clock (MM-clock) with extensive parameter coverage and enhanced predictive precision, and organ-associated aging clocks. Cross-layer analysis demonstrates that plasma protein clocks not only capture chronological age but also serve as efficient proxies for systemic physiological capacity. Leveraging this framework for discovery, we identified the age-dependent accumulation of coagulation factors as a driver of multi-organ senescence and systemic inflammatory activation. This study provides a foundational framework that bridges molecular signatures with functional decline, identifies new biomarkers for aging assessment, and reveals a novel translational driver of aging.

医療・健康
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