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Ckip-1 3'UTR通过激活CaMKK2/AMPK/cTNI通路来缓解长时间睡眠剥夺引起的心脏功能障碍

Beilei Dong^1,2,3, Rui Xue⁴, Jianwei Li²

¹Nanjing University of Chinese Medicine, Nanjing, 210023, China.

Molecular biomedicine

|June 13, 2024

概括

长时间的睡眠剥夺 (SD) 损害了小鼠的心脏功能和结构. 恢复氨酸激酶-2 - 交互蛋白-1 3'未翻译区域 (CKIP-1 3'UTR) 保护免受SD诱导的心脏病.

科学领域:

心血管生物学心血管生物学
睡眠医学睡眠医学
分子心脏病学分子心脏病学

背景情况:

睡眠不足 (SD) 对心血管健康构成重大威胁,但其潜在机制仍然不太了解.
目前对SD引起的心脏病的治疗策略有限,这凸显了对新型药物点的需求.

研究的目的:

在小鼠模型中研究长期SD对心脏结构和功能的影响.
阐明SD诱导的心脏损伤背后的分子机制,重点关注素激酶-2 - 相互作用蛋白-1 (CKIP-1) 的作用.

主要方法:

使用心声学,RT-q-PCR,马森染色,ELISA,转录测序和西式涂抹来评估心脏功能和分子变化.
小鼠接受了五周的SD,以诱导心脏重塑和损伤.
使用腺病毒介导的CKIP-1 3'未翻译区域 (3'UTR) 的过度表达来评估其治疗潜力.

主要成果:

SD显著损害心脏功能,增加心脏重塑标记 (ANP) 和诱导纤维化.
心脏损伤的生物标志物 (CK,CK-MB,ANP,BNP,cTn-T) 在SD后升高.
SD改变了信号传递和心脏收缩通路中的基因,抑制了CaMKK2 / AMPK / cTNI通路,同时降低了CKIP-1 3'UTR水平.

结论:

长时间的SD导致心脏功能障碍和心脏通过涉及CaMKK2 / AMPK / cTNI通路的机制重塑.
CKIP-1 3'UTR在调节心脏对SD的反应方面发挥着至关重要的作用.
对CKIP-1 3'UTR的过度表达显示了通过重新激活CaMKK2/AMPK/cTNI通路来治疗睡眠剥夺引起的心脏病的治疗前景.

关键词:

Ckip-1 在3'UTRR 在CaMKK2/AMPK/cTNI路径中.心脏功能是如何运转的睡眠不足的原因是睡眠不足.

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