ArticleRenal failure2018
Salvia przewalskii extract of total phenolic acids inhibit TLR4 signaling activation in podocyte injury induced by puromycin aminonucleoside in vitro.
Article in Renal failure, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 5 citations in OpenAlex.
- miRNA-93-5p in exosomes derived from M2 macrophages improves lipopolysaccharide-induced podocyte apoptosis by targeting Toll-like receptor 4.Bioengineered · 2022Article
- Recent Advances in Traditional Chinese Medicine for Treatment of Podocyte Injury.Frontiers in pharmacology · 2022Review
- The protective effect and mechanism of catalpol on high glucose-induced podocyte injury.BMC complementary and alternative medicine · 2019Article
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10 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundTLR4 signaling is known to be involved in podocyte injury. We have previously shown that Salvia przewalskii extract of total phenolic acids (SPE) and its active monomer salvianolic acid B (SalB) and rosmarinic acid (RA) protect podocytes from injury induced by PAN. In the present study, we test whether SPE inhibits TLR4 signaling.
methodsThe conditionally immortalized mouse podocytes were treated with SPE, SalB, RA, SalB + RA or tacrolimus for 30 min, followed by PAN (100 μg/mL) for 24 h. The F-actin staining with phalloidin was used to assess cytoskeletal injury in the podocytes. Western blotting and semi-quantitatives RT-PCR were used to assess the changes of the components in the TLR4 signaling pathway.
results(1) The F-actin stress fibers of podocytes were almost completely disrupted after PAN treatment for 24 h, and the disruption was significantly alleviated by SPE; (2) the PAN-induced elevation of mRNA levels of TLR4, MyD88 and p65 were inhibited except p65 with high-dose SalB; (3) consistently, the protein levels of TLR4, MyD88 and pp65 were significantly elevated by PAN, and SPE, SalB, RA and admixture, respectively, attenuated the elevations of TLR4 and pp65 proteins; (4) SPE and tacrolimus have a similarly strong effect on inhibition of the expression of TLR4 signaling components.
conclusionsSPE protects podocytes from PAN-induced injury at least partly through inhibiting TLR4 signaling. SPE is as strong as tacrolimus in inhibiting TLR4 signaling in podocytes.
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