In Vivo (Add solvents to the product individually and in order.)
Homogeneous suspension
CMC-NA
≥5mg/ml
Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)
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Biological Activity
Description
SRT2104 (GSK2245840) is a selective SIRT1 activator involved in the regulation of energy homeostasis and is currently in Phase 2.
Targets
SIRT1
In vitro
SRT2104 (GSK2245840) reduces p65/RelA acetylation levels in C2C12 cells.
In Vivo
In male C57BL/6J mice, SRT2104 (GSK2245840) (100 mg/kg, p.o.) extends both mean and maximal lifespan of mice fed a standard diet, enhances motor coordination, bone mineral density, and insulin sensitivity, and decreases inflammation. Short-term treatment with this compound preserves bone and muscle mass in an experimental model of atrophy. In Male N171-82Q HD mice, it (diet containing 0.5% SRT2104) effectively penetrates the blood-brain barrier, attenuates brain atrophy, improves motor function, and extends survival.
In the SIRT1 FP assay for SRT2104 (GSK2245840), SIRT1 activity is monitored using a 20 amino acid peptide (Ac-Glu-Glu-Lys(biotin)-Gly-Gln-Ser-Thr-Ser-Ser-His-Ser-Lys(Ac)-Nle-Ser-Thr-Glu-Gly–Lys(MR121 or Tamra)-Glu-Glu-NH2) derived from the sequence of p53. The peptide is N-terminally linked to biotin and C-terminally modified with a fluorescent tag. The reaction for monitoring enzyme activity is a coupled enzyme assay where the first reaction is the deacetylation reaction catalysed by SIRT1 and the second reaction is cleavage by trypsin at the newly exposed lysine residue. The reaction is stopped and streptavidin is added in order to accentuate the mass differences between substrate and product. The fluorescence polarisation reaction conditions are as follows: 0.5 μM peptide substrate, 150 μM βNAD +, 0-10 nM SIRT1, 25 mM Tris-acetate pH 8, 137 mM Na-Ac, 2.7 mM K-Ac, 1 mM Mg-Ac, 0.05% Tween-20, 0.1% Pluronic F127, 10 mM CaCl 2, 5 mM DTT, 0.025% BSA, and 0.15 mM nicotinamide. The reaction is incubated at 37°C and stopped by addition of nicotinamide, and trypsin is added to cleave the deacetylated substrate. This reaction is incubated at 37 ℃ in the presence of 1 μM streptavidin. Fluorescent polarisation is determined at excitation (650 nm) and emission (680 nm) wavelengths.
Cells are cultured in low glucose Dulbecco's modified Eagle's medium (DMEM) supplemented with 10% fetal bovine serum and penicillin–streptomycin. They are treated with vehicle (0.1% DMSO) or 3 μM SRT2104 (GSK2245840) for 24 h and then harvested for protein and Western blotting.
Sellecks SRT2104 (GSK2245840) Has Been Cited by 20 Publications
Suppression of FOXO1 activity by SIRT1-mediated deacetylation weakening the intratumoral androgen autocrine function in glioblastoma
[ Cancer Gene Ther, 2025, 32(3):343-354]
Upregulation of SIRT1 ameliorates apoptosis of rat nucleus pulposus cells under oxidative stress through FoxO1/β-catenin pathway
[ Folia Histochem Cytobiol, 2025, 10.5603/fhc.104395]
Neuroprotection of SRT2104 in Murine Ischemia/Reperfusion Injury Through the Enhancement of Sirt1-Mediated Deacetylation
[ Invest Ophthalmol Vis Sci, 2023, 64(4):31]
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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.
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