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Shengqi Huo, Qian Wang, Wei Shi, Lulu Peng, Yue Jiang, Mengying Zhu, Junyi Guo, Dewei Peng, Moran Wang, Lintong Men and 3 more
Cuproptosis resulting from copper (Cu) overload has not yet been investigated in diabetic cardiomyopathy (DCM). Advanced glycosylation end products (AGEs) induced by persistent hyperglycemia play an essential role in cardiotoxicity. To clarify whether cuproptosis was involved in AGEs-induced cardiotoxicity, we analyzed the toxicity of AGEs and copper in AC16 cardiomyocytes and in STZ-induced or db/db-diabetic mouse models. The results showed that copper ionophore elesclomol induced cuproptosis in cardiomyocytes. It was only rescued by copper chelator tetrathiomolybdate rather than by other cell death inhibitors. Intriguingly, AGEs triggered cardiomyocyte death and aggravated it when incubated with CuCl2 or elesclomol–CuCl2. Moreover, AGEs increased intracellular copper accumulation and exhibited features of cuproptosis, including loss of Fe–S cluster proteins (FDX1, LIAS, NDUFS8 and ACO2) and decreased lipoylation of DLAT and DLST. These effects were accompanied by decreased mitochondrial oxidative respiration, including downregulated mitochondrial respiratory chain complex, decreased ATP production and suppressed mitochondrial complex I and III activity. Additionally, AGEs promoted the upregulation of copper importer SLC31A1. We predicted that ATF3 and/or SPI1 might be transcriptional factors of SLC31A1 by online databases and validated that by ATF3/SPI1 overexpression. In diabetic mice, copper and AGEs increases in the blood and heart were observed and accompanied by cardiac dysfunction. The protein and mRNA profile changes in diabetic hearts were consistent with cuproptosis. Our findings showed, for the first time, that excessive AGEs and copper in diabetes upregulated ATF3/SPI1/SLC31A1 signaling, thereby disturbing copper homeostasis and promoting cuproptosis. Collectively, the novel mechanism might be an alternative potential therapeutic target for DCM.
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Huo, S., Wang, Q., Shi, W., Peng, L., Jiang, Y., Zhu, M., Guo, J., Peng, D., Wang, M., Men, L., Huang, B., Lv, J., & Li, L. (2023). ATF3/SPI1/SLC31A1 Signaling Promotes Cuproptosis Induced by Advanced Glycosylation End Products in Diabetic Myocardial Injury. International Journal of Molecular Sciences, 24(2), 1667. https://doi.org/10.3390/ijms24021667
Huo, Shengqi, et al. "ATF3/SPI1/SLC31A1 Signaling Promotes Cuproptosis Induced by Advanced Glycosylation End Products in Diabetic Myocardial Injury." International Journal of Molecular Sciences, vol. 24, no. 2, 2023, pp. 1667, https://doi.org/10.3390/ijms24021667.
Huo, Shengqi, Qian Wang, Wei Shi, Lulu Peng, Yue Jiang, Mengying Zhu, Junyi Guo, et al. "ATF3/SPI1/SLC31A1 Signaling Promotes Cuproptosis Induced by Advanced Glycosylation End Products in Diabetic Myocardial Injury." International Journal of Molecular Sciences 24, no. 2 (2023): 1667. https://doi.org/10.3390/ijms24021667.
Huo S., Wang Q., Shi W. [и др.] ATF3/SPI1/SLC31A1 Signaling Promotes Cuproptosis Induced by Advanced Glycosylation End Products in Diabetic Myocardial Injury // International Journal of Molecular Sciences. — 2023. — Vol. 24, № 2. — P. 1667. — URL: https://doi.org/10.3390/ijms24021667
@article{huo2023atfspislca,
title = {{ATF3/SPI1/SLC31A1 Signaling Promotes Cuproptosis Induced by Advanced Glycosylation End Products in Diabetic Myocardial Injury}},
author = {Shengqi Huo and Qian Wang and Wei Shi and Lulu Peng and Yue Jiang and Mengying Zhu and Junyi Guo and Dewei Peng and Moran Wang and Lintong Men and Bingyu Huang and Jiagao Lv and Lin Li},
journal = {International Journal of Molecular Sciences},
year = {2023},
volume = {24},
number = {2},
pages = {1667},
doi = {10.3390/ijms24021667},
url = {https://doi.org/10.3390/ijms24021667}
}TY - JOUR AU - Huo, Shengqi AU - Wang, Qian AU - Shi, Wei AU - Peng, Lulu AU - Jiang, Yue AU - Zhu, Mengying AU - Guo, Junyi AU - Peng, Dewei AU - Wang, Moran AU - Men, Lintong AU - Huang, Bingyu AU - Lv, Jiagao AU - Li, Lin TI - ATF3/SPI1/SLC31A1 Signaling Promotes Cuproptosis Induced by Advanced Glycosylation End Products in Diabetic Myocardial Injury JO - International Journal of Molecular Sciences VL - 24 IS - 2 SP - 1667 PY - 2023 DA - 2023/01/14 DO - 10.3390/ijms24021667 UR - https://doi.org/10.3390/ijms24021667 ER -
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