1.中国中医科学院,北京 100007
2.中国医学科学院阜外医院中医科,北京 100037
3.中国中医科学院广安门医院心血管科,北京 100053
4.中国中医科学院广安门医院,北京 100053
石树青,女,32岁,博士,主治医师。研究方向:中医药防治心血管疾病。
胡元会,E-mail:huiyuhui55@sohu.com
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石树青,殷仕洁,张雪松,等.基于PGC-1α/NRF-1/Tfam探讨芪珀生脉颗粒对HL-1心房肌细胞线粒体生物合成的改善作用[J].北京中医药,2022,41(10):1084-1090.
SHI Shu-qing,YIN Shi-jie,ZHANG Xue-song,et al.Improvement effect of Qipo Shengmai Granules on mitochondrial biosynthesis in HL-1 atrial myocytes based on PGC-1α/NRF-1/Tfam[J]. Beijing Journal of Traditional Chinese Medicine,2022,41(10):1084-1090.
石树青,殷仕洁,张雪松,等.基于PGC-1α/NRF-1/Tfam探讨芪珀生脉颗粒对HL-1心房肌细胞线粒体生物合成的改善作用[J].北京中医药,2022,41(10):1084-1090. DOI: 10.16025/j.1674-1307.2022.10.003.
SHI Shu-qing,YIN Shi-jie,ZHANG Xue-song,et al.Improvement effect of Qipo Shengmai Granules on mitochondrial biosynthesis in HL-1 atrial myocytes based on PGC-1α/NRF-1/Tfam[J]. Beijing Journal of Traditional Chinese Medicine,2022,41(10):1084-1090. DOI: 10.16025/j.1674-1307.2022.10.003.
目的,2,研究芪珀生脉颗粒含药血清改善快速起搏诱导的HL-1心肌细胞线粒体功能障碍的机制。,方法,2,运用电刺激HL-1心房肌细胞,在体外建立快速起搏的心房颤动细胞模型。随后采用转染小干扰RNA(siRNA)沉默PGC-1α基因表达,并给予芪珀生脉颗粒含药血清或空白血清干预,通过检测线粒体数量、ATP合成能力及线粒体生物合成相关蛋白的表达,观察在PGC-1α基因沉默时,芪珀生脉颗粒是否能发挥对心肌细胞线粒体的保护及促进合成作用。,结果,2,芪珀生脉颗粒含药血清可以提高快速起搏的HL-1心肌细胞线粒体数量、ATP含量,上调线粒体生物合成相关的蛋白,转染PGC-1α siRNA后,芪珀生脉颗粒的线粒体保护作用被阻断。,结论,2,芪珀生脉颗粒通过PGC-1α/NRF-1/Tfam介导的线粒体生物合成改善快速起搏HL-1心肌细胞线粒体功能障碍。
Objective,2,To examine the improvement mechanism of mitochondrial biosynthesis in HL-1 cardiomyocytes mediated by fast pacing with Qipo Shengmai Granules (QPSM) contained serum.,Methods,2,An atrial fibrillation cell model with fast pacing was established in vitro by electrical stimulation of HL-1 atrial myocytes. Subsequently, the expression of PGC-1α gene was silenced by transfection of small interfering RNA (siRNA), and were treated with QPSM-contained serum or blank serum. By detecting the number of mitochondria, ATP synthesis ability and the expression of mitochondrial biosynthesis-related proteins, it was observed that when PGC-1α gene was silenced, whether QPSM could still play a role in protecting and promoting the synthesis of cardiomyocyte mitochondria.,Results,2,The QPSM-contained serum could increase the number of mitochondria and ATP content, and up-regulate the proteins related to mitochondrial biosynthesis in rapidly pacing HL-1 cardiomyocytes. After transfection with PGC-1α siRNA, the mitochondrial protective effect of QPSM was blocked.,Conclusion,2,It is suggeted that QPSM may improve mitochondrial malfunction of fast paced HL-1 cardiomyocytes through PGC-1/NRF-1/Tfam-mediated mitochondrial biosynthesis.
芪珀生脉颗粒线粒体生物合成HL-1心肌细胞PGC-1α
Qipo Shengmai Granulesmitochondrial biosynthesisHL-1 myocardial cellPGC-1α
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