长寿相关蛋白质SLC39A11作为转运器的新型作用
Zhidan Xia1, Biyao Tang1,2,3, Xiaopeng Li1
1The First Affiliated Hospital, The Second Affiliated Hospital, Institute of Translational Medicine, School of Public Health, Zhejiang Provincial Key Laboratory of Bioelectromagnetics, State Key Laboratory of Experimental Hematology, Zhejiang University School of Medicine, Hangzhou, China.
Research (Washington, D.C.)
|August 8, 2024
概括
通过调节含量,SLC39A11 (ZIP11) 基因可以防止衰老. 减少SLC39A11表达加速衰老,导致细胞衰老和DNA损伤,特别是在男性中.
科学领域:
- 遗传学和衰老研究研究
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
背景情况:
- 识别与衰老和寿命相关的基因对于促进健康衰老至关重要.
- 之前的研究将SLC39A11基因 (ZIP11) 中的单核酸多态 (SNP) 与男性的寿命联系起来.
- 对于SLC39A11蛋白在衰老过程中的确切功能,在很大程度上是未知的.
研究的目的:
- 阐明SLC39A11蛋白在衰老和与年龄相关的疾病中的功能作用.
- 研究SLC39A11缺陷诱导的衰老表型背后的分子机制.
- 为了确定SLC39A11是否调节金属恒温,特别是.
主要方法:
- 在Hutchinson-Gilford孕症综合征 (HGPS) 患者中分析SLC39A11表达.
- 斑马鱼与突变slc39a11的表型特征,包括寿命,肌肉功能和生殖系统.
- 在突变斑马鱼和小鼠中进行RNA测序,免疫光和感应合血质谱 (ICP-MS).
- 在人体纤维细胞中进行细胞衰老测定,操纵SLC39A11水平和暴露.
主要成果:
- 在HGPS患者中,SLC39A11表达显著降低.
- slc39a11突变斑马鱼表现出加速衰老的表型,在雄性中更明显,包括寿命缩短和肌肉缩.
- 突变斑马鱼和小鼠显示积,表明SLC39A11在运输中的作用.
- 减少SLC39A11或高暴露导致人类纤维细胞中的细胞衰老.
结论:
- SLC39A11对抗衰老起着保护作用,部分是通过调节细胞平稳.
- 缺少SLC39A11导致加速衰老的表型,可能由细胞衰老和增加DNA损伤介导.
- SLC39A11被确定为系统水平的关键调节剂,对与年龄相关的健康有影响.
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