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Rutin-Loaded Nanostructured Lipid Carriers Attenuate Doxorubicin-Induced Nephrotoxicity and Modulate Epigenetic Regulation and MyD88/STAT3 Signaling
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DOI：10.3390/toxics14080713.png)
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Abstract
En 中文
Doxorubicin (DOX)-induced nephrotoxicity remains a major limitation to its clinical use, yet the underlying epigenetic mechanisms are incompletely understood. This study investigated the role of epigenetic dysregulation and MyD88/STAT3 signaling in DOX-induced renal injury and evaluated the renoprotective efficacy of rutin-loaded nanostructured lipid carriers (RUT-NLCs) compared with free rutin (RUT). Thirty-six rats were allocated to six experimental groups, and renal function, oxidative stress, inflammation, DNA damage, epigenetic modifications, MyD88/STAT3 signaling, histopathology, and ultrastructural changes were assessed. DOX administration induced severe renal dysfunction, oxidative stress, DNA damage, tubular injury, global DNA hypermethylation, aberrant histone methylation, Klotho promoter hypermethylation, and activation of the MyD88/STAT3 inflammatory pathway. Treatment with RUT-NLCs significantly attenuated these alterations by restoring antioxidant defenses, normalizing epigenetic markers, reducing DNA damage, suppressing MyD88/STAT3 signaling, and improving renal histopathological and ultrastructural architecture. Overall, RUT-NLCs provided greater nephroprotection than free rutin, suggesting that modulation of epigenetic alterations and MyD88/STAT3 signaling represents a key mechanism underlying their therapeutic efficacy against DOX-induced nephrotoxicity.
Keywords:
doxorubicin
kidney injury
epigenetics
klotho methylation
MyD88/STAT3
nanostructured lipid carriers
rutin
oxidative stress
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