|Source:||The rhizomes of Polygonum cuspidatum Sieb. et Zucc.|
|Biological Activity or Inhibitors:||1. Piceatannol has antitumor activity.
2. Piceatannol has the potential to control obesity.
3. Piceatannol has antioxidant, and anti-inflammatory activities.
4. Piceatannol inhibits effector T cell functions by suppressing TcR signaling.
|Solvent:||Chloroform, Dichloromethane, Ethyl Acetate, DMSO, Acetone, etc.|
|Storage:||Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to 24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please email to: firstname.lastname@example.org
|After receiving:||The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.|
|1 mg||5 mg||10 mg||20 mg||25 mg|
|1 mM||4.095 mL||20.475 mL||40.95 mL||81.9001 mL||102.3751 mL|
|5 mM||0.819 mL||4.095 mL||8.19 mL||16.38 mL||20.475 mL|
|10 mM||0.4095 mL||2.0475 mL||4.095 mL||8.19 mL||10.2375 mL|
|50 mM||0.0819 mL||0.4095 mL||0.819 mL||1.638 mL||2.0475 mL|
|100 mM||0.041 mL||0.2048 mL||0.4095 mL||0.819 mL||1.0238 mL|
Int Immunopharmacol. 2015 Feb 9;25(2):285-292.
|Piceatannol inhibits effector T cell functions by suppressing TcR signaling.[Pubmed: 25676533]|
|Piceatannol, a metabolite of resveratrol found in red wine and grapes, displays a wide spectrum of biological activity. Although the anti-oxidant, anti-inflammatory, and anti-tumorigenesis activity of Piceatannol has been extensively studied, its role in the adaptive immune response has received less attention. Here we investigated the role of Piceatannol, a well-known Syk inhibitor, in T cell activation, proliferation, and differentiation using isolated murine splenic T cells from C57BL/6 mice. Piceatannol treatment inhibited surface expression of CD4 and CD8 T cell activation markers CD25 and CD69, reduced production of cytokines IFNγ, IL-2, and IL-17, and suppressed proliferation of activated T cells. Moreover, Piceatannol treatment significantly inhibited differentiation of CD4+CD25-CD62L+ naïve CD4 T cells into Th1, Th2, and Th17 cells, presumably due to inhibition of TcR signaling through p-Erk, p-Akt, and p-p38. Piceatannol appears to be a useful nutritional or pharmacological biomolecule that regulates effector T cell functions such as cytokine production, differentiation, and proliferation.|
Anticancer Agents Med Chem. 2015;15(2):248-57.
|Toxic Effects of Aflatoxin B1 on Embryonic Development of Zebrafish (Danio rerio): Potential Activity of Piceatannol Encapsulated Chitosan/poly (Lactic Acid) Nanoparticles.[Pubmed: 25322988]|
|The aim was to analyse the efficacy of Piceatannol (PIC) loaded chitosan (CS)/poly(lactic acid)(PLA) nanoparticles (CS/PLA-PIC NPs) in zebra fish embryos exposed to aflatoxin B1 (AFB1). FTIR confirmed the chemical interaction between the polymers and drug. SEM showed the size of CS/PLA-PIC NPs approximately 87 to 200nm, compared to CS-PLA NPs of 150nm size. The size was further affirmed as 127nm (CS-PLA NPs) and 147nm (CS/PLA-PIC NPs) by zetasizer depiction. CS/PLA-PIC NPs have not illustrated toxicity at high concentrations when tested in zebrafish embryos. AFB1 wielded their toxic effects on the survival, spontaneous movement, hatching and heart rate and development of embryos were observed in both time and dose-dependent manner at 4μM.|
Phytother Res. 2014 Nov;28(11):1581-8.
|A review of the pharmacological effects of piceatannol on cardiovascular diseases.[Pubmed: 24919577]|
|Piceatannol, an analog and metabolite of resveratrol, is a natural stilbene commonly found in the skin of grapes and wine. Piceatannol is believed to be a potent compound with certain cardiovascular therapeutic effects, such as the prevention of hypercholesterolemia, arrhythmia, atherosclerosis, and angiogenesis. It also has vasorelaxation and antioxidant activities. A comprehensive review of Piceatannol concludes that Piceatannol has the potential to be developed into health products for the cardiovascular system to help modern society reduce the high CVD incidence. However, further investigations are warranted in order to increase the bioavailability and understand the biological mechanisms and safety of using Piceatannol.|