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Nepetoidin B

Nepetoidin B
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Nepetoidin B

Catalog No. TN4648Cas No. 55486-06-1
Nepetoidin B has anti-fungal, anti-bacterial, and antiinflammatory effects, it can inhibit LPS-stimulated NO production possibly via modulation of iNOS mediated by MKP-5/NF-κB pathways in RAW 264.7 cells.
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Product Introduction

Bioactivity
Description
Nepetoidin B has anti-fungal, anti-bacterial, and antiinflammatory effects, it can inhibit LPS-stimulated NO production possibly via modulation of iNOS mediated by MKP-5/NF-κB pathways in RAW 264.7 cells.
In vitro
Nepetoidin B (NTB) in this study, the anti-inflammatory effect of NTB was investigated in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. The cytotoxic effect of NTB and LPS was determined by MTT assay. The nitric oxide (NO) production was detected by the Griess assay. The TNF-α and IL-6 levels were determined by enzyme-linked immunosorbent assay kits. Protein expressions were tested by western blotting. The transcription activity of inducible nitric oxide synthase (iNOS) was detected by luciferase assay. An immunofluorescence assay was used to observe the visualization of NF-κB/p65 nuclear translocation. NTB and LPS showed no obvious cytotoxic effect on RAW 264.7 cells. NTB remarkably inhibited LPS-induced NO and TNF-α secretion in a concentration-dependent manner while showing no significant effect on IL-6 secretion. NTB inhibited LPS-induced iNOS protein expression and transcription activity without affecting cyclooxygenase-2. Furthermore, NTB suppressed LPS-stimulated NF-κB/p65 phosphorylation and nuclear translocation. In addition, NTB significantly inhibited LPS-induced phosphorylation of JNK1/2 and p38MAPK without affecting ERK1/2. LPS-induced inhibition of mitogen-activated protein kinase phosphatase-5 (MKP-5) was completely reversed by NTB.CONCLUSIONS: In conclusion, these results suggested that NTB inhibited LPS-stimulated NO production possibly via modulation of iNOS mediated by MKP-5/NF-κB pathways in RAW 264.7 cells.[1]
Chemical Properties
Molecular Weight314.29
FormulaC17H14O6
Cas No.55486-06-1
Storage & Solubility Information
Storagekeep away from direct sunlight,keep away from moisture,store at low temperature Powder: -20°C for 3 years | In solvent: -80°C for 1 year

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