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Biological Activity for Kaempferol
Activates the mitochondrial Ca2+ uniporter (EC50 = 7 μM). Induces caspase-9-mediated apoptosis in cancer cell lines via downregulation of polo-like kinase 1 (PLK1) expression. Exhibits antioxidant activity and attenuates osteoclastic bone reabsorption in vitro. Also blocks EGF-induced histone H3Ser10 phosphorylation in mouse epidermal JB6 C141 cells. Activates transcriptional coactivator with PDZ-binding motif (TAZ) and increases osteoblast differentiation of mesenchymal stem cells while inhibiting adipocyte differentiation. Naturally occurring flavonoid found in Gingko biloba and red wine. Kaempferol has antiviral activity against Japanese encephalitis virus (JEV) in infected BHK21 (EC50 = 21.5 μM). Kaempferol directly inhibits viral replication and protein expression by binding JEV frameshift site RNA (fsRNA). Kaempferol influences frameshift efficiency in virus-infected cells through interfering with a downstream RNA pseudoknot structure. Kaempferol has also been reported to exhibit activity against herpes simplex virus, influenza viruses (H1N1 and H9N2) and hepatitis B virus under in vitro conditions.
Technical Data for Kaempferol
|Storage||Store at +4°C|
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
Solubility Data for Kaempferol
|Solvent||Max Conc. mg/mL||Max Conc. mM|
Preparing Stock Solutions for Kaempferol
The following data is based on the product molecular weight 286.24. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||3.49 mL||17.47 mL||34.94 mL|
|5 mM||0.7 mL||3.49 mL||6.99 mL|
|10 mM||0.35 mL||1.75 mL||3.49 mL|
|50 mM||0.07 mL||0.35 mL||0.7 mL|
References for Kaempferol
References are publications that support the biological activity of the product.
Montero et al (2004) Direct activation of the mitochondrial calcium uniporter by natural plant flavonoids. Biochem.J. 384 19 PMID: 15324303
Suh et al (2009) Kaempferol attenuates 2-deoxy-D-ribose-induced oxidative cell damage in MC3T3-E1 osteoblastic cells. Biol.Pharm.Bull. 32 746 PMID: 19336918
Kang et al (2009) Downregulation of PLK-1 expression in kaempferol-induced apoptosis of MCF-7 cells. Eur.J.Pharmacol. 611 17 PMID: 19356725
Vay et al (2009) Modulation of Ca2+ release and Ca2+ oscillations in HeLa cells and fibroblasts by mitochondrial Ca2+ uniporter stimulation. J.Physiol. 580 39
Cho et al (2007) Ribosomal S6 kinase 2 is a key regulator in tumor promoter induced cell transformation. Cancer Res. 67 8104 PMID: 17804722
Byun et al (2012) TAZ is required for the osteogenic and anti-adipogenic activities of kaempferol. Bone 50 364 PMID: 22108137
Li et al (2008) In vitro and in vivo anti-hepatitis B virus activities of a plant extract from Geranium carolinianum L. Antiviral Res. 79 114 PMID: 18423640
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1 Citation for Kaempferol
Citations are publications that use Tocris products. Selected citations for Kaempferol include:
Tran et al (2014) Identification of small molecules that protect pancreatic β cells against endoplasmic reticulum stress-induced cell death. ACS Chem Biol 9 2796 PMID: 25279668
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Reviews for Kaempferol
Average Rating: 5 (Based on 1 Review.)
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Islets were maintained in CMRL medium supplemented with 10% FBS and kaempferol
Literature in this Area
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Programmed Cell Death Poster
There are two currently recognized forms of programmed cell death: apoptosis and necroptosis. This poster summarizes the signaling pathways involved in apoptosis, necroptosis and cell survival following death receptor activation, and highlights the influence of the molecular switch, cFLIP, on cell fate.