Everolimus

Catalog No.S1120 Batch:S112027

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Technical Data

Formula

C53H83NO14
Molecular Weight 958.22 CAS No. 159351-69-6
Solubility (25°C)* In vitro DMSO 100 mg/mL (104.36 mM)
Ethanol 100 mg/mL (104.36 mM)
Water Insoluble
* <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 Everolimus is an mTOR inhibitor of FKBP12 with IC50 of 1.6-2.4 nM in a cell-free assay. Everolimus induces cell apoptosis and autophagy and inhibits tumor cells proliferation.
Targets
FKBP12 [1]
(Cell-free assay)		 mTOR (FKBP12) [1]
(Cell-free assay)
1.6-2.4 nM 1.6 nM-2.4 nM
In vitro Everolimus exhibits the immunosuppressive activity which is comparable to that of rapamycin. Everolimus competes with immobilized FK 506 for binding to biotinylated FKBP12 and shows the inhibitory effect on a two-way MLR performed with spleen cells from BALB/c and CBA mice with IC50 of 0.12-1.8 nM. [1] Everolimus also shows antiangiogenic/vascular effects in VEGF-induced HUVEC proliferation with IC50 of 0.12 nM and bFGF-induced HUVEC proliferation with IC50 of 0.8 nM, respectively. [2] A recent study shows that Everolimus shows a dose-dependent inhibitory effects on both the total cells and the stem cells from the BT474 cell line and the primary breast cancer cells with IC50 of 156 nM in total cells of primary breast cancer cells and 71 nM in total cells of BT474 cells. In addition, combination treatment with Everolimus and trastuzumab produces the significantly increased inhibition on the growth of cancer stem cells with the inhibition rate increased by more than 50 %. [3]
In vivo Everolimus (0.1 to 10 mg/kg) dose-dependently inhibits growth of the primary (ear) and lymph node metastases of B16/BL6 melanoma, with decreased total number of vessels and reduced mature vessels. [2] In a xenograft animal model of BT474 stem cells, Everolimus shows significant reductions in mean tumor sizes (590.6 mm3), compared to the control group with a tumor size of 698 mm3. Furthermore, combination treatment with Everolimus and trastuzumab significantly decreases the xenograft tumor size (410.8 mm3) more than Everolimus treatment alone. [3]

Protocol (from reference)

Kinase Assay:[1]
  • FKBP12 binding assay & Mixed lymphocyte reaction (MLR)

    FKBP12 binding assay: Binding to the FK 506 binding protein (FKBP12) is indirectly assessed by means of an ELISA-type competition assay. FK 506 is included in each individual experiment as a standard, and the inhibitory activity is expressed as relative IC50 compared to FK 506 (rIC50 = IC50 Everolimus/IC50 FK 506). Mixed lymphocyte reaction (MLR): The immunosuppressive activities of RAP and its derivatives are assessed in a two-way MLR, using spleen cells of BALB/c and CBA mice. RAP is included in each individual experiment as a standard, and the inhibitory activity is expressed as relative IC50 compared to RAP (rIC50 = IC50 Everolimus/IC50 RAP).
Cell Assay:[3]
  • Cell lines

    BT474 cell line and the primary breast cancer cells

  • Concentrations

    0.001-10 μM

  • Incubation Time

    24 hours

  • Method

    The 3-(4-5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide dye reduction assay (MTT assay) is used to compare the effects of Everolimus or trastuzumab on total breast cancer cells and breast CSCs. The total cells and the stem cells from the BT474 cell line and the primary breast cancer cells are respectively seeded into 96-well plates with different concentrations of the drugs, with five wells for each concentration, and the cells are cultured at 37 °C with 5 % CO2 in an incubator for 24 hours. The concentrations of Everolimus are 1 nM, 10 nM, 100 nM, 1 μM and 10 μM, and the concentrations of trastuzumab are 0.5 μg/mL, 1 μg/mL, 10 μg/mL, 50 μg/mL, and 100 μg/mL. The combinatorial inhibitory effect of Everolimus and Trastuzumab on the in vitro growth of breast CSCs is examined by MTT assay as well using 10 μg/mL trastuzumab in combination of increasing concentrations of everolimus (1 nM, 10 nM, 100 nM and 1 μM). After drug treatment for 24 hours, 20 μL MTT [5 mg/mL in phosphate buffered saline (PBS)] is added to each well, and the cells are incubated at 37 °C with 5 % CO2 and saturated humidity for 4 hours. Following the subsequent removal of the supernatant, 150 μL dimethyl sulfoxide (DMSO) is added to each well, and the cells are vortexed for 10 minutes. The light absorbance (OD value) is measured for each well using an ELISA reader. Each experiment is repeated in triplicate, and dose–response curves are plotted. The probit software of the statistical software package SPSS 17.0 for Windows is used to calculate the inhibitory concentration (IC50) of Everolimus.
Animal Study:[3]
  • Animal Models

    Cultured BT474 stem cells are injected beneath the left breast pad of BALB/c nude mice.

  • Dosages

    ≤2 mg/kg

  • Administration

    Administered via p.o.

Customer Product Validation

Data from [Data independently produced by Br J Cancer, 2014, 111(6), 1168-79]

Data from [Data independently produced by Clin Cancer Res, 2013, 19(3),598-609]

Data from [Data independently produced by Cancer Cell, 2012, 21(2), 155-67]

Data from [Data independently produced by Aging (Albany NY), 2012, 4(2), 119-32]

Selleck's Everolimus has been cited by 876 publications

Human fetal brain self-organizes into long-term expanding organoids [ Cell, 2024, 187(3):712-732.e38] PubMed: 38194967
Human fetal brain self-organizes into long-term expanding organoids [ Cell, 2024, 187(3):712-732.e38] PubMed: 38194967
Cyclin-dependent kinase 4 drives cystic kidney disease in the absence of mTORC1 signaling activity [ Kidney Int, 2024, S0085-2538(24)00627-6] PubMed: 39218392
3D-printed, citrate-based bioresorbable vascular scaffolds for coronary artery angioplasty [ Bioact Mater, 2024, 38:195-206] PubMed: 38756202
Antiviral activity of immunosuppressors alone and in combination against human adenovirus and cytomegalovirus [ Int J Antimicrob Agents, 2024, 63(5):107116] PubMed: 38401774
Altered CELF4 splicing factor enhances pancreatic neuroendocrine tumors aggressiveness influencing mTOR and everolimus response [ Mol Ther Nucleic Acids, 2024, 35(1):102090] PubMed: 38187140
The mTOR pathway controls phosphorylation of BRAF at T401 [ Cell Commun Signal, 2024, 22(1):428] PubMed: 39223665
NF1 deficiency drives metabolic reprogramming in ER+ breast cancer [ Mol Metab, 2024, 80:101876] PubMed: 38216123
p53 modulates kinase inhibitor resistance and lineage plasticity in NF1-related MPNSTs [ Oncogene, 2024, 43(19):1411-1430] PubMed: 38480916
Functional genomics reveals an off-target dependency of drug synergy in gastric cancer therapy [ Gastric Cancer, 2024, 10.1007/s10120-024-01537-y] PubMed: 39033209

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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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