ArticleInternational urology and nephrology2024
Interference in the nutrient-sensing and inflammatory signaling pathways by renal autophagy activation in mice with late stage diabetic nephropathy.
Article in International urology and nephrology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeDisturbance in metabolism and inflammation are the main causes of kidney injury in patients with late stage diabetic nephropathy (DN). Here, we explored whether autophagy was activated in mice with late stage DN and whether it was associated with disturbance in metabolism and inflammation.
methodsIn total, mice were divided into the control group (db/m) and DN group (db/db). Mice were raised for 7 months, and their biochemical indices were measured. Subsequently, their kidneys were collected to detect autophagy and the related nutrient-sensing and inflammatory signaling pathways in late stage DN.
resultsThe expression levels of autophagy markers LC3-I and LC3-II were significantly increased in mice with late stage DN, whereas that of autophagy flux marker P62 was significantly decreased, indicating activation of autophagy. Concurrently, mechanistic target of rapamycin was highly expressed as a cellular nutrient-sensing and energy regulator in mice with late stage DN. Additionally, the expression levels of markers of nutrient-sensing signaling pathways adenosine monophosphate-activated protein kinase (AMPK) were increased markedly in mice with late stage DN. Additionally, the expression levels of the marker of nutrient-sensing signaling pathways silent information regulator T1 (SIRT1), the marker of inflammatory signaling pathways high mobility group box protein 1 (HMGB1), and interferon regulatory factor 3 (IRF3) were significantly increased in mice with late stage DN.
conclusionsThe findings of our study indicate that autophagy activation in late stage DN may interfere with nutrient-sensing and inflammatory signaling pathways involving AMPK, SIRT1, HMGB1, and IRF3.
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