Abstract
Ciliary neurotrophic factor (CNTF), which is a neural peptide, has been reported to confer cardioprotective effects. However, whether CNTF-based gene delivery could prevent cardiac remodeling in diabetes mellitus remains unknown. In this study, we used adeno-associated viral vector serotype 9 (AAV9)-based cardiac gene delivery to test the effects of CNTF overexpression on adverse ventricular remodeling in streptozotocin-induced type 1 diabetic mice models. Postnatal (P3-P10) mice were peritoneally injected with AAV9 recombinant virus carrying the CNTF gene or EGFP gene. Then, type 1 diabetic models were established by peritoneal injection of streptozotocin (200 mg/kg) in 7-week-old female mice injected with AAV9. 4 weeks later after the establishment of type 1 diabetes mellitus, mouse hearts were removed to assess the degree of cardiac remodeling. We found that CNTF overexpression in mouse cardiomyocytes exacerbated cell apoptosis and cardiac fibrosis coupled with an increased inflammatory response in the heart tissue of diabetic female mice. Taken together, our results suggested that cardiac CNTF gene delivery may not be beneficial in alleviating adverse cardiac remodeling in type 1 diabetes female mice.
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The datasets used and analyzed during the current study are available from the corresponding author on reasonable request. All data generated or analyzed during this study are included in this published article.
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No code was generated or used during the study.
Change history
08 December 2021
A Correction to this paper has been published: https://doi.org/10.1007/s12012-021-09711-9
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Funding
This work was supported by financial support from Wuhan University (Grant number: 2042019kf0074) and jointly supported by the National Natural Science Foundation of China (No. 81401304), the Natural Science Foundation of Hubei Province, China (No. 2019CFB621), the Health Commission of Hubei Province and Wuhan University of Science and Technology Joint Foundation (WJ2019H219).
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PZ and HSD conceptualized the study and designed the experiments. PZ, JYP, and TL perfumed experiments and researched and analyzed data. PZ wrote the manuscript with all co-authors revising it critically for important intellectual content. All authors approved the final version of the manuscript.
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The animal experiments were approved by the ethics committee of Wuhan University. This study conforms to the NIH Guide for the Care and Use of Laboratory Animals (NIH publication No.85-23, revised 1996).
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Communicated by Martin Štěrba.
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The original online version of this article was revised: “Hua-sheng Ding is the co-corresponding author of the article”.
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Zhong, P., Peng, J., Liu, T. et al. AAV9-Mediated Cardiac CNTF Overexpression Exacerbated Adverse Cardiac Remodeling in Streptozotocin-Induced Type 1 Diabetic Models. Cardiovasc Toxicol 22, 88–96 (2022). https://doi.org/10.1007/s12012-021-09706-6
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DOI: https://doi.org/10.1007/s12012-021-09706-6