雌性的上腺,上腺和上腺的调节和功能性蛋白质在整个生命过程中都会减少
Hillary Fries Huber1, Cun Li2, Dongbin Xie2
1Southwest National Primate Research Center, Texas Biomedical Research Institute, 8715 W. Military, San Antonio, TX, 78227, USA. hhuber@txbiomed.org.
GeroScience
|February 4, 2024
概括
上皮皮带区域功能随着年龄的增长而下降,上皮带 (ZF) 显示出比上皮带 (ZR) 更大的变化. 这项研究量化了子上腺体中与年龄相关的蛋白质变化.
科学领域:
- 内分泌学 在内分泌学.
- 衰老研究研究 衰老研究
- 细胞生物学 细胞生物学
背景情况:
- 上皮质功能在一生中发生变化,并由快速的类固醇度转移而复杂化.
- 了解上腺区 (上腺区和网状腺区) 的生命周期轨迹至关重要,但具有挑战性.
研究的目的:
- 量化带 (ZF) 和网状带 (ZR) 中关键蛋白质与年龄有关的变化.
- 通过免疫组织化学来研究整个生命过程中的上腺皮质功能轨迹.
主要方法:
- 免疫组织化学被用来量化12个关键蛋白质在28个雌性子上腺 (年龄7.522.1年).
- 评估的蛋白质包括那些参与新陈代谢,增殖,类固醇生成 (StAR),氧化应激和线粒体功能的蛋白质.
主要成果:
- 随着年龄的增长,十个ZF蛋白的丰度下降;细胞循环抑制剂和氧化应激标志物增加.
- 在12种蛋白质中,有7种蛋白质在ZF和ZR中表现出与年龄相关的类似变化.
- 带状带的Star随着年龄的增长而下降,而带状网状带的Star保持不变.
结论:
- 带状带功能似乎随着年龄的增长而显著下降,而不是带状网状带功能.
- 确定了上皮皮质区域蛋白表达的与年龄相关的变化.
- 需要进一步的研究来确定这些与衰老相关的变化的原因和后果.
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