TPEN

SKU: orb1303522

Description

TPEN

Research Area

Cell Biology, Immunology & Inflammation, Metabolism Research, Signal Transduction

Key Properties

• CAS Number: 16858-02-9
• MW: 424.54
• Purity: 99.79%
• Formula: C₂₆H₂₈N₆
• SMILES: C(CN(Cc1ccccn1)Cc1ccccn1)N(Cc1ccccn1)Cc1ccccn1
• Target: Apoptosis,Autophagy,ROS,Reactive Oxygen Species
• Solubility: 10% DMSO+40% PEG300+5% Tween 80+45% Saline:2 mg/mL (4.71 mM);DMSO:20 mg/mL (47.11 mM)

Bioactivity

• In Vitro:
  TPEN attenuates Fura-2 fluorescence changes induced by cadmium, mercury, and methylmercury. In cells stimulated with cadmium chloride (10/30 μM), the addition of TPEN at 3 h after exposure significantly decreases the elevated Fura-2 fluorescence ratio to the basal levels within 10 min (119.6±2.4% or 109±1.5% decrease in ΔRatio (F340/F380)). TPEN targets colon cancer cells through redox cycling of copper. TPEN dose- and time-dependently reduces cell viability. TPEN-induced cell death is also dependent on the redox cycling of copper since the copper chelator neocuproine inhibited DNA damage and reduced pChk1, γ-H2AX, and ATM protein expression.
• Cell Research:
  TPEN is dissolved in DMSO and then diluted with appropriate medium. Human neuroblastoma cell line SH-SY5Y, are grown in Dulbecco's Modified Eagle's Medium (DMEM) mixed 1:1 with Ham's F-12 nutrient mixture containing 10% fetal bovine serum, 100 unit/mL penicillin and 100 μg/mL streptomycin at 37°C in a humidified 5% CO2 atmosphere. Two days before experimentation, cells are seeded at a density of 7×104 cells/cm2 in a 96-well plate. Cells in a 96-well plate are serum-starved for 4 hr; calcium indicator fura-2 is then loaded into the cells by using Calcium kit II fura-2. In brief, SH-SY5Ycells are incubated with 5 μM fura-2/AM in the presence of 0.04% Pluronic F-127, a dispersing agent to improve the efficiency of loading with fura-2, and 1.25 mM probenecid, a blocker of organic anion transport to prevent leakage of fura-2 from cells. After 1 hr incubation at 37°C, fura-2 fluorescence is measured at 500 nm emission after excitation at 340 nm (F340) or 380 nm (F380) using an Infinite M200 plate reader at 37°C.The change in [Ca2+]i is reflected by the ratio of F340 and F380. To determine the changes in fura-2 fluorescence ratio induced by heavy metal compounds, cells are treated with manganese chloride, lead acetate, cadmium chloride , mercuric chloride and MeHg chloride dissolved in distilled water. We confirmed that the cells adhered to the bottom of the plate after 6 hr exposure to heavy metal compounds. The cells are also treated with three Ca2+ channel blockers, lanthanum chloride dissolved in distilled water, verapamil and 2-APB dissolved in DMSO, 30 min before heavy metal exposure. The heavy metal chelator TPEN is dissolved in DMSO and added 3 hr after the stimulation with heavy metals to determine the contribution of endogenous and exogenous heavy metals on fura-2 fluorescence changes.We measured the effect of TPEN (20 μM) on the fura-2 fluorescence ratio after a 10 min treatment with TPEN, since our preliminary experiments showed that the effect of TPEN on fura-2 fluorescence reached maximum and stabilized within 10 min of the treatment.

Storage & Handling

• Storage: Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature.
• Expiration Date: 12 months from date of receipt.
• Disclaimer: For research use only

Alternative Names

ReactiveOxygenSpecies, Reactive Oxygen Species, TPEN, TPEDA, Apoptosis, Autophagy, Inhibitor, inhibit

Compound Identifiers

PubChem CID

5519