Abstract
Epigenetic modifications play a role in Diabetic Nephropathy (DN). Downregulation of miR-29b leads to modulation of DNA methylation via DNA methyl transferases (DNMTs) and hence exaggerated renal fibrosis in DN. Therefore, the main aim of the study was to evaluate effect of miR-29b expression in vivo on DNMTs, renal fibrosis, glomerular and tubular damage as well as renal morphology in DN. In order to explore the role of miR-29b in DNA methylation of other miRNAs, methylation profiling study was performed. It revealed that miR-29b was involved in methylation on of miR-130b on the cytosine guanine dinucleotides rich DNA (CpG) island 1 located on promoter region. In conclusion, miR-29b expression was found to modulate DNA methylation via DNMTs and regulate methylation of miR-130b. The result of this study provides a future direction to unveil role of miRNA expression in DNA methylation and its consequent effect on other miRNAs in DN.
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Acknowledgements
The research was carried out at National Institute of Pharmaceutical Education and Research- Ahmedabad with the financial aid from the Department of Pharmaceuticals, Ministry of Chemicals and Fertilizers, Government of India.
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Conceptualization, Formal analysis and Methodology was done by Piyush Gondaliya. Data curation, Investigation and Writing – original draft was performed by Piyush Gondaliya and Kavya Jash. Supervision, and Writing – review & editing was done by Akshay Srivastava. Conceptualization, Project administration, Resources and Supervision was performed by Kiran Kalia. All authors read and approved the final manuscript.
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All applicable institutional guidelines for the care and use of animals were followed. All procedures performed in this study involving animals were in accordance with the ethical standards of the institution at which the study was conducted (NIPER-A institutional animal ethics committee, NIPER-A/IAEC/2017/032).
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Gondaliya, P., Jash, K., Srivastava, A. et al. MiR-29b modulates DNA methylation in promoter region of miR-130b in mouse model of Diabetic nephropathy. J Diabetes Metab Disord 22, 1105–1115 (2023). https://doi.org/10.1007/s40200-023-01208-2
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DOI: https://doi.org/10.1007/s40200-023-01208-2