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Shifts in podocyte histone H3K27me3 regulate mouse and human glomerular disease

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dc.contributor.author Majumder, Syamantak
dc.date.accessioned 2021-10-02T17:46:54Z
dc.date.available 2021-10-02T17:46:54Z
dc.date.issued 2018
dc.identifier.uri https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5749498/
dc.identifier.uri http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/2408
dc.description.abstract Histone protein modifications control fate determination during normal development and dedifferentiation during disease. Here, we set out to determine the extent to which dynamic changes to histones affect the differentiated phenotype of ordinarily quiescent adult glomerular podocytes. To do this, we examined the consequences of shifting the balance of the repressive histone H3 lysine 27 trimethylation (H3K27me3) mark in podocytes. Adriamycin nephrotoxicity and subtotal nephrectomy (SNx) studies indicated that deletion of the histone methylating enzyme EZH2 from podocytes decreased H3K27me3 levels and sensitized mice to glomerular disease. H3K27me3 was enriched at the promoter region of the Notch ligand Jag1 in podocytes, and derepression of Jag1 by EZH2 inhibition or knockdown facilitated podocyte dedifferentiation. Conversely, inhibition of the Jumonji C domain–containing demethylases Jmjd3 and UTX increased the H3K27me3 content of podocytes and attenuated glomerular disease in adriamycin nephrotoxicity, SNx, and diabetes. Podocytes in glomeruli from humans with focal segmental glomerulosclerosis or diabetic nephropathy exhibited diminished H3K27me3 and heightened UTX content. Analogous to human disease, inhibition of Jmjd3 and UTX abated nephropathy progression in mice with established glomerular injury and reduced H3K27me3 levels. Together, these findings indicate that ostensibly stable chromatin modifications can be dynamically regulated in quiescent cells and that epigenetic reprogramming can improve outcomes in glomerular disease by repressing the reactivation of developmental pathways. en_US
dc.language.iso en en_US
dc.publisher PMC en_US
dc.subject Biology en_US
dc.subject Endocrinology en_US
dc.subject Nephrology en_US
dc.subject Chronic kidney disease en_US
dc.title Shifts in podocyte histone H3K27me3 regulate mouse and human glomerular disease en_US
dc.type Article en_US


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