长寿 人类具有年轻的红细胞功能和代谢特征
Fang Yu1,2,3, Changhan Chen2,3, Wuping Liu2,3
1Department of Neurology, Central South University, Changsha, China.
Aging cell
|February 10, 2025
概括
长寿的个体保持年轻的红细胞功能,增强氧气输送和抗氧化压力. 这种年轻的新陈代谢可以防止与年龄相关的疾病,并促进更长的健康寿命.
科学领域:
- 老年学和细胞代谢研究.
- 血液学和红细胞功能分析.
- 衰老和长寿的生物化学.
背景情况:
- 衰老与红细胞释放氧气能力的减少以及对缺氧,炎症和氧化应激的敏感性增加有关.
- 长寿个体通常对与年龄相关的疾病表现出抵抗力,这表明了潜在的保护机制.
- 长寿个体的血液中存在'再生分子'的假设已经提出.
研究的目的:
- 与老年人相比,研究长寿个体的红细胞功能和代谢概况.
- 识别有助于长寿个体健康的特定代谢物和分子机制.
- 了解年轻的红细胞功能如何影响全身健康并对抗衰老的特征.
主要方法:
- 从长寿个体和老年对照中对红细胞进行非向的代谢学分析.
- 定量分析用于识别和测量与长寿相关的特定代谢物.
- 涉及蛋白质水平分析 (BPGM,MFSD2B,GAPDH) 和代谢途径调查 (Rapoport-Luebering Shunt) 的机制研究.
主要成果:
- 长寿个体具有与年轻个体相比较的红细胞氧释放功能,与大多数老年人不同.
- 长寿个体的红细胞表现出类似青春的代谢重编程,其特征是腺素,斯芬戈-1-酸盐 (S1P) 和谷氨 (GSH) 相关氨基酸的升高.
- 增加的双糖酸酶突变酶 (BPGM) 和减少的MFSD2B驱动S1P升高和2,3-BPG产生,增强氧气输送.
- 增加的谷氨胺/谷氨酸运输和新陈代谢导致GSH增加,增加抗氧化能力.
结论:
- 年轻的红细胞功能和新陈代谢是长寿个体的关键特征.
- 这些红细胞适应能够更好地对抗外围组织缺氧,炎症和氧化应激.
- 这些发现揭示了长寿人群健康维持的新机制,突出了红细胞作为关键参与者.
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