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3 protocols using p iκbα

1

Osteoclastogenesis Regulation by AQX-1125

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AQX-1125 was purchased from MedChemExpress (MCE). The primary antibodies of GAPDH, PI3K, p-PI3K, Akt, p-AKT, P65, p-P65, IκBα, p- IκBα, SHIP1, Runx2, Alp, NFATc1, and c-Fos were acquired from ABclonal (Wuhan, China). Phalloidin and 4, 6-diamidino-2-phenylindole (DAPI) were purchased from Solarbio (Beijing, China). RANKL (the receptor activator of the nuclear factor kappa-B ligand) and M-CSF (macrophage colony-stimulating factor) were obtained from R&D Systems (Minnesota, USA). Cell culturing plates were purchased from NEST (Jiangsu, China). Minimum Essential Medium Alpha (α-MEM), Dulbecco’s Modified Eagle Medium: F-12 (DMEM/F-12), fetal bovine serum (FBS), penicillin, streptomycin, and trypsin were purchased from Gibco (Grand Island, NY, United States). The TRAP staining kit was obtained from Solarbio (Beijing, China).
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2

Protein Extraction and Western Blot Analysis

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Cellular proteins were isolated using radio-immuno precipitation assay (RIPA) buffer (P0013B, Beyotime, Shanghai, China), followed by separation via 8% sodium dodecyl-sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and their transfer onto polyvinylidene fluoride (PVDF) membranes (IPVH00005, Millipore, Billrica, MA, USA). Afterward, the membranes underwent blocking with 5% Bovine Serum Albumin (BSA) for 1 hour, followed by PBS washing. Subsequently, the membranes underwent an overnight incubation at 4 °C with the respective primary antibodies: p-IκBα (AP0707, 1:1000, ABclonal, Wuhan, China), NF-κB (A14754, 1:1000, ABclonal, Wuhan, China), Notch1 (A7636, 1:1000, ABclonal, Wuhan, China), Hes-1 (A0925, 1:1000, ABclonal, Wuhan, China), GAPDH (A19056, 1:5000, ABclonal, Wuhan, China). After washing with PBS, the membranes underwent incubation with the corresponding secondary anti-body, goat anti-rabbit IgG (H+L) (AS014, 1:2000, ABclonal, Wuhan, China), for 2 hours at room temperature. After three washes with tris-buffered saline Tween-20 (TBST) buffer (60145ES76, Yi Sheng Biotechnology, Shanghai, China) for 5 minutes each, signal detection was performed utilizing an enhanced chemiluminescence detection kit (P0018S, Beyotime, Shanghai, China). Image J software (V1.8.0.112, NIH, Madison, WI, USA) was used for image analysis.
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3

Inflammatory Cytokine Regulation in Rat Cells

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MT, Rat IL-1β, 4′,6-diamidino-2-phenylindole (DAPI), collagenase type II, and EX527 were purchased from Sigma Aldrich (St. Louis, MO, USA). Fetal bovine serum (FBS) (BI, Kibbutz Bet Hamek, Israel), Dulbecco’s Modified Eagle’s Medium-(DMEM-) F12 Medium, and Phosphate Buffered Saline purchased from Corning (New York, NY, USA). 1% penicillin/streptomycin, cell counting kit-8 (CCK-8), and staining kit were purchased from Beyotime (Haimen, China). Trypsin (0.25%) was purchased from Gibco (Grand Island, NY, USA). Lysate and RAPI were purchased from Biyuntian (Shanghai, China). nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor (p65), Phosphorylated nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor (p-p65),alpha (IκBα), p-IκBα, TGF-β1, Smad2, iNOS, COX-2, matrix metalloproteinase-3 (MMP-3), matrix metalloproteinase-13 (MMP-13), collagen type II alpha 1 chain (COL2A1), SIRT1, and ADAMTS-4 were purchased from ABclonal Technology (Wuhan, China). Horseradish peroxidase-conjugated goat anti-mouse/rabbit immunoglobulin G (IgG) secondary antibody was purchased from ABclonal Technology (UK). GAPDH was purchased from CST (Danvers, MA, USA).
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