- Basic Research
- Role of Autophagy in Granulocyte-Colony Stimulating Factor Induced Anti-Apoptotic Effects in Diabetic Cardiomyopathy
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Guang-Yin Shen, Jeong-Hun Shin, Yi-Sun Song, Hyun-Woo Joo, In-Hwa Park, Jin-Hee Seong, Na-Kyoung Shin, A-Hyeon Lee, Young Jong Cho, Yonggu Lee, Young-Hyo Lim, Hyuck Kim, Kyung-Soo Kim
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Diabetes Metab J. 2021;45(4):594-605. Published online February 26, 2021
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DOI: https://doi.org/10.4093/dmj.2020.0049
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 Graphical Abstract
 Abstract
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 - Background
We previously, reported that granulocyte-colony stimulating factor (G-CSF) reduces cardiomyocyte apoptosis in diabetic cardiomyopathy. However, the underlying mechanisms are not yet fully understood. Therefore, we investigated whether the mechanisms underlying of the anti-apoptotic effects of G-CSF were associated with autophagy using a rat model of diabetic cardiomyopathy.
Methods
Diabetic cardiomyopathy was induced in rats through a high-fat diet combined with low-dose streptozotocin and the rats were then treated with G-CSF for 5 days. Rat H9c2 cardiac cells were cultured under high glucose conditions as an in vitro model of diabetic cardiomyopathy. The extent of apoptosis and protein levels related to autophagy (Beclin-1, microtubule-binding protein light chain 3 [LC3]-II/LC3-I ratio, and P62) were determined for both models. Autophagy determination was performed using an Autophagy Detection kit.
Results
G-CSF significantly reduced cardiomyocyte apoptosis in the diabetic myocardium in vivo and led to an increase in Beclin-1 level and the LC3-II/LC3-I ratio, and decreased P62 level. Similarly, G-CSF suppressed apoptosis, increased Beclin-1 level and LC3-II/LC3-I ratio, and decreased P62 level in high glucose-induced H9c2 cardiac cells in vitro. These effects of G-CSF were abrogated by 3-methyladenine, an autophagy inhibitor. In addition, G-CSF significantly increased autophagic flux in vitro.
Conclusion
Our results suggest that the anti-apoptotic effect of G-CSF might be significantly associated with the up-regulation of autophagy in diabetic cardiomyopathy.
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Citations
Citations to this article as recorded by  - Targeting autophagy in diabetic cardiomyopathy: From molecular mechanisms to pharmacotherapy
Jie Li, Yingying Xie, Shuwen Zheng, Haoming He, Zhe Wang, Xuexi Li, Siqi Jiao, Dong Liu, Furong Yang, Hailing Zhao, Ping Li, Yihong Sun
Biomedicine & Pharmacotherapy.2024; 175: 116790. CrossRef - Knockout of C1q/tumor necrosis factor-related protein-9 aggravates cardiac fibrosis in diabetic mice by regulating YAP-mediated autophagy
Shiyan Ruan, Jun Li, Shengyun Lei, Shaomeng Zhang, Dan Xu, Anju Zuo, Linxi Li, Yuan Guo
Frontiers in Pharmacology.2024;[Epub] CrossRef - Ginkgo biloba extract protects against diabetic cardiomyopathy by restoring autophagy via adenosine monophosphateâactivated protein kinase/mammalian target of the rapamycin pathway modulation
Xueyao Yang, Xin Zhao, Yanfei Liu, Yue Liu, Libo Liu, Ziyu An, Haoran Xing, Jinfan Tian, Xiantao Song
Phytotherapy Research.2023; 37(4): 1377. CrossRef - Perspectives for Forkhead box transcription factors in diabetic cardiomyopathy: Their therapeutic potential and possible effects of salvianolic acids
Ronghui Han, Hemeng Huang, Weiyi Xia, Jingjin Liu, Hui Luo, Jing Tang, Zhengyuan Xia
Frontiers in Cardiovascular Medicine.2022;[Epub] CrossRef
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