Journal: Cureus
Article Title: Melittin Alleviates Oxidative Stress Injury in Schwann Cells by Targeting Interleukin-1 Receptor Type 1 to Downregulate Nuclear Factor Kappa B-Mediated Inflammatory Response In Vitro
doi: 10.7759/cureus.65721
Figure Lengend Snippet: (A) RT-qPCR results showing the expression levels of IL-1R1 and IL-1β. (B) Transmission electron microscope images of ultrastructural alterations in CoCl 2 -induced SCs for each group (Left: ×2500, Right: ×7000), with the red arrows indicating mitochondria. (C) Western blot of C-JUN and GDNF protein expression for quantitative analyses. (D) and (E) Western blot and RT-qPCR results showing the expression levels of VEGF, HIF-1α, IL-1R1, ENO1, AR, SOD, NGF, and iNOS. *p < 0.05, **p < 0.01, ***p < 0.001, ****p < 0.0001 versus control and other groups. Data are presented as mean ± standard deviation. SCs: Schwann cells; GDNF: Glial cell line-derived neurotrophic factor; RT-qPCR: Quantitative reverse transcription-polymerase chain reaction; VEGF: Vascular endothelial growth factor; HIF-1α: Hypoxia-inducible factor 1-alpha; IL-1R1: Interleukin-1 receptor type 1; ENO1: Enolase 1; AR: Aldose reductase; SOD: Superoxide dismutase; NGF: Nerve growth factor; iNOS: Inducible nitric oxide synthase.
Article Snippet: Briefly, cells cultured on coverslips were fixed with 4% paraformaldehyde in PBS for 10 min and then permeabilized with 0.05% Triton X-100 for 10 min. Non-specific binding sites were blocked with 5% goat serum for 1 h. Subsequently, the cells were incubated with a rabbit anti-rat IL-1R1 monoclonal antibody (AF7212, Beyotime, Jiangsu, China) at room temperature for 1.5 h. After washing three times with PBS, the cells were incubated with FITC-conjugated goat anti-rabbit IgG (#7074, Cell Signaling) for 2 h at room temperature.
Techniques: Quantitative RT-PCR, Expressing, Transmission Assay, Microscopy, Western Blot, Control, Standard Deviation, Derivative Assay, Reverse Transcription, Polymerase Chain Reaction