Rosuvastatin and diosmetin inhibited the HSP70/TLR4 /NF-κB p65/NLRP3 signaling pathways and switched macrophage to M2 phenotype in a rat model of acute kidney injury induced by cisplatin - 04/02/24
, Engy Elekhnawy b, 2, Moataz A. Shaldam c, 3, Moneerah J. Alqahtani d, ⁎, 4
, Najla Altwaijry e, ⁎, 5
, Nashwah G.M. Attallah f, Ismail A. Hussein g, 6, Hanaa A. Ibrahim h, 7, Walaa A. Negm i, 8, Esraa A. Salem j, 9Abstract |
Numerous efforts to manage acute kidney injury (AKI) were unsuccessful because its pathophysiology is still poorly understood. Thus, our research hotspot was to explore the possible renoprotective effects of rosuvastatin (Ros) and diosmetin (D) on macrophage polarization and the role of HSP70/TLR4/MyD88/NF-κB p65/NLRP3/STAT3 signaling in cis-induced AKI and study the activity of D against uropathogenic bacteria. Fifty-four albino male rats were randomized into 9 groups equally: Control, Ros, D20, D40, untreated Cis, and Cis groups cotreated with Ros, D20, D40 and Ros+D40 for 10 days. Our results indicated that Ros and D, in a dose-dependent manner, markedly restored body weight, systolic blood pressure, and renal histological architecture besides significantly upregulated SOD levels, expression of anti-inflammatory CD163 macrophages, arginase1levels, IL-10 levels,STAT3 and PCNA immunoreactivity. Also, they significantly downregulated renal index, serum urea, serum creatinine, serum cystatin c, inflammatory biomarkers (C reactive protein, IL1β & TNF-α), MDA levels, HSP70/TLR4/MyD88/NF-κB p65/NLRP3 expressions, proinflammatory CD68 macrophages and caspase-3 immunoreactivity, resulting in a reversal of cis-induced renal damage. These findings were further confirmed by molecular docking that showed the binding affinity of Ros and D towards TLR4 and NLRP3. Furthermore, D had antibacterial action with a minimum inhibitory concentration ranging from 128 to 256 µg/mL and caused a delay in the growth of the tested isolates, and negatively affected the membrane integrity. In conclusion, Ros and D had antioxidant, anti-inflammatory and antiapoptotic properties and switched macrophage from proinflammatory CD68 to anti-inflammatory CD163. Additionally, the targeting of HSP70/TLR4/MyD88/NF-κB p65/NLRP3/STAT3 signals are effective therapeutic strategy in AKI.
El texto completo de este artículo está disponible en PDF.Graphical Abstract |
Highlights |
• | Ros and D attenuated the renal oxidative stress, inflammation and apoptosis via successful inhibition of HSP70 and TLR4/NF-κB p65 /NLRP3 signals. |
• | MD simulations showed the binding affinity of Ros and D towards TLR4 and NLRP3. |
• | D has antibacterial action against different uropathogens. |
Keywords : Cisplatin, Rosuvastatin, Diosmetin, Macrophages, Molecular docking
Esquema
Vol 171
Artículo 116151- février 2024 Regresar al númeroBienvenido a EM-consulte, la referencia de los profesionales de la salud.
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