Epigenetic Mechanisms in Kidney Disease

Epigenetic regulation underpins both normal renal development and adaptive responses to environmental stress. In kidney disease, aberrant DNA methylation, histone modifications and chromatin remodelling contribute to functional decline through effects on podocytes, endothelial cells and tubular epithelium. Altered methylation at CpG islands in promoters and enhancers modulates transcription of genes involved in glomerular filtration, extracellular matrix deposition and inflammatory signalling. Histone methylation and acetylation dynamically govern chromatin accessibility at loci encoding fibrotic mediators, oxidative‐stress sensors and growth factors. These epigenetic alterations not only serve as biomarkers for early detection and prognosis but also reveal targets for precision therapies aimed at restoring nephron integrity, attenuating fibrosis and improving outcomes in chronic and diabetic kidney disease worldwide.

Research from Nature Portfolio

Recent studies have identified novel methylation signatures associated with baseline kidney function and subsequent decline in people with type 2 diabetes. By integrating epigenome‐wide association data across large cohorts, researchers have pinpointed dozens of CpG sites whose methylation levels correlate with estimated glomerular filtration rate (eGFR) and its rate of change. These CpG sites reside near genes enriched for roles in renal development, injury response and fibrosis, and predictive models incorporating multisite methylation loci have been validated in independent populations. Other work has demonstrated that methylation changes in kidney tubule cells—particularly within regulatory regions—are linked to structural damage and functional decline. A panel of methylation probes improves prediction of fibrosis and eGFR loss and corresponds with altered expression of key genes such as EGF. Earlier foundational analyses of blood‐based methylation profiles also uncovered CpG sites associated with chronic kidney disease and highlighted transcription factor motifs enriched in these regions, emphasising the systemic nature of epigenetic dysregulation in renal pathology.

Epigenetic Mechanisms in Kidney Disease publication trend

The graph below shows the total number of articles in epigenetic mechanisms in kidney disease across all publications each year (not limited to Nature Index journals).

Technical terms

Epigenetics: Heritable changes in gene expression not caused by alterations in the DNA sequence, mediated by chemical modifications of DNA or histone proteins.

DNA methylation: Addition of a methyl group to cytosine residues, typically at CpG dinucleotides, influencing gene transcription.

CpG site: A cytosine–phosphate–guanine sequence in DNA where cytosine methylation commonly occurs.

Histone methylation: Post‐translational addition of methyl groups to lysine or arginine residues on histone tails, affecting chromatin compaction and gene activity.

Histone acetylation: Addition of acetyl groups to lysine residues on histones, generally associated with relaxed chromatin and active transcription.

Epigenome‐wide association study (EWAS): A systematic approach to identify epigenetic modifications across the genome that correlate with phenotypic traits or diseases.

Lysine methyltransferase: An enzyme that transfers methyl groups to lysine residues on histone proteins, modulating chromatin structure and gene expression.

References

1. DNA methylation markers for kidney function and progression of diabetic kidney disease. Nature Communications (2023).
2. Kidney cytosine methylation changes improve renal function decline estimation in patients with diabetic kidney disease. Nature Communications (2019).
3. Epigenome-wide association studies identify DNA methylation associated with kidney function. Nature Communications (2017).
4. Cytosine methylation changes in enhancer regions of core pro-fibrotic genes characterize kidney fibrosis development. Genome Biology (2013).
5. Set7 Methyltransferase and Phenotypic Switch in Diabetic Glomerular Endothelial Cells. Journal of the American Society of Nephrology (2024).
6. Histone Deacetylase Inhibitors and Diabetic Kidney Disease. International Journal of Molecular Sciences (2018).
7. Induction of Tet3-dependent Epigenetic Remodeling by Low-dose Hydralazine Attenuates Progression of Chronic Kidney Disease. EBioMedicine (2014).