1. PI3K/Akt/mTOR
  2. mTOR

AZD-8055 (Synonyms: AZD8055; AZD 8055)

Cat. No.: HY-10422 Purity: 99.23%
Data Sheet SDS Handling Instructions

AZD-8055 is a novel ATP-competitive inhibitor of mTOR kinase activity, with an IC50 of 0.8 nM.

For research use only. We do not sell to patients.
AZD-8055 Chemical Structure

AZD-8055 Chemical Structure

CAS No. : 1009298-09-2

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10 mM * 1 mL in DMSO $55 In-stock
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Customer Review

Top Publications Citing Use of Products

    AZD-8055 purchased from MCE. Usage Cited in: Sci Bull. 2015 Dec;60(24):2120-2128.

    CNE-2Z cells are treated with AZD8055 or Rapamycin with or without 1 T SMF for 3 d before they are harvested for Western blot.

    AZD-8055 purchased from MCE. Usage Cited in: PLoS One. 2016 Jan 28;11(1):e0147682.

    CHP-212 and SK-N-AS cells are treated with indicated concentrations of AZD6244, MEK162, Everolimus or AZD8055 or combinations thereof as indicated for 1 hour. Then, cells are lysed and analysed by Western blot. Phosphorylation levels of AKT, ERK and S6 are detected by specific anti-phospho antibodies. Loading is verified by specific antibodies to total AKT, ERK and anti-tubulin.

    AZD-8055 purchased from MCE. Usage Cited in: Oncotarget. 2015 Dec 8;6(39):42183-96.

    KNS-62 and T24 cells are treated with 250 nM AZD6244, 250 nM MEK162, 5 nM of Everolimus, 250 nM AKT8055 or combinations thereof as indicated for 1 hour. Then, cells are lysed and analysed by Western blot.

    AZD-8055 purchased from MCE. Usage Cited in: Oncotarget. 2016 May 31;7(22):32641-51.

    The well-established PI3Kδ specific inhibitor, CAL-101, shows similar effects as PI3KD-IN-015 with an EC50 of 2.3 nM against PI3Kδ and over 1000-fold less potent against the other three isoforms. Determination of CAL-101 inhibitory activities against PI3Kα, β, δ and γ in cellular background.
    • Biological Activity

    • Protocol

    • Technical Information

    • Purity & Documentation

    • References


    AZD-8055 is a novel ATP-competitive inhibitor of mTOR kinase activity, with an IC50 of 0.8 nM.

    IC50 & Target

    IC50: 0.8 nM (mTOR)[1]

    In Vitro

    The inhibitory activity of AZD-8055 (AZD8055) against mTOR is evaluated using two different assays. Using the truncated recombinant mTOR enzyme, the IC50 for AZD8055 is 0.13±0.05 nM. Using native mTOR enzyme complexes extracted from HeLa cells, the IC50 is 0.8±0.2 nM. AZD-8055 (AZD8055) shows excellent selectivity (~1,000-fold) against all class I PI3K isoforms and other members of the PI3K-like kinase family. AZD-8055 inhibits the phosphorylation of mTORC1 substrates p70S6K and 4E-BP1 as well as phosphorylation of the mTORC2 substrate AKT and downstream proteins. The cellular IC50s for AZD8055 are calculated as 24±9 nM (n=13) for pAKT Ser473 and 27±3 nM (n=12) for pS6 Ser235/236 in MDA-MB-468 cells[1].

    In Vivo

    In mice bearing U87-MG (PTEN null) glioblastoma xenografts, oral treatment with AZD-8055 (AZD8055) results in a dose-dependent tumor growth inhibition of 33%, 48%, and 77% with 2.5, 5, and 10 mg/kg/d twice daily, respectively. A similar dose dependency is observed in nude mice bearing A549 xenografts: tumor growth inhibition is 44%, 55%, and 93% after 2.5, 5, and 10 mg/kg/d twice daily, respectively. AZD8055 also results in significant inhibition of tumor growth and/or regression in breast, lung, colon, prostate, and uterine xenograft models when administered either twice daily at 10 mg/kg or daily at a dose of 20 mg/kg[1]. AZD8055 markedly decreases the phosphorylation levels of mTOR and its substrates and the activation of microglia in vivo, and promotes the microglial polarization from M1 phenotype to M2 phenotype. In addition, administration of AZD8055 following subarachnoid hemorrhage (SAH) significantly ameliorates EBI, including neuronal apoptosis, neuronal necrosis, brain edema and blood-brain barrier permeability[2].

    Clinical Trial
    NCT Number Sponsor Condition Start Date Phase
    NCT00973076 AstraZeneca Cancer|Solid Tumors|Advanced Solid Malignancies August 2009 Phase 1
    NCT01316809 National Cancer Institute (NCI)|National Institutes of Health Clinical Center (CC) Glioblastoma Multiforme|Anaplastic Astrocytoma|Anaplastic Oligodendroglioma|Malignant Glioma|Brainstem Glioma March 4, 2011 Phase 1
    NCT00999882 AstraZeneca Cancer|Advanced Hepatocellular Carcinoma October 2009 Phase 1
    NCT00731263 AstraZeneca Solid Tumors July 2008 Phase 1
    NCT01194193 AstraZeneca Cancer|Advanced Solid Tumours|Lymphomas Phase 1
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    Preparing Stock Solutions
    Concentration Volume (DMSO) Mass 1 mg 5 mg 10 mg
    1 mM 2.1480 mL 10.7402 mL 21.4804 mL
    5 mM 0.4296 mL 2.1480 mL 4.2961 mL
    10 mM 0.2148 mL 1.0740 mL 2.1480 mL
    Kinase Assay

    Inhibition of mTOR is evaluated using two methodologies: The high-throughput assay uses an α screen capture complex technology with a recombinant truncated FLAG-tagged mTOR (amino acids 1362-2549; expressed in HEK293 cells) and a biotinylated p70 peptide substrate. In addition, native mTOR activity is assayed using immunoprecipitation of full-length mTOR from HeLa cytoplasmic extract, and the endogenous mTOR is in protein complexes with Rictor and Raptor. A kinase assay is performed in the presence of recombinant 4E-BP1 protein as substrate with detection of the phosphorylated product through an ELISA format. The activity of the lipid kinases, class I PI3Ks α, β, δ, and γ, is measured using recombinant PI3Ks with the lipid PIP2 as substrate. Assays for the ataxia-telangiectasia mutated (ATM) and DNA-PK are performed. Finally, counterscreen against 260 kinases is carried out at a fixed concentration of 10 μM AZD-8055[1].

    Cell Assay

    AZD-8055 (AZD8055) is dissolved in DMSO (10 mM) and stored, and then diluted with appropriate media before use[1].

    For growth inhibition and acridine staining, cells are exposed to increasing concentrations of AZD-8055 (0 to 1,280 nM) for 72 to 96 h and stained for cell nuclei (0.03 mg/mL Hoechst 33342) and acidic vesicles (1 μg/mL acridine orange). Images are captured at 450 and 536 nm on an ArrayScan II platform, and the percentage of acidic vesicles and the number of cells are quantified. For LC3 assessment, cells are exposed to e64d/pepstatin (10 μg/mL) for 30 to 90 min before incubation with AZD8055. Cells are lysed on ice and analyzed by immunoblotting[1].

    Animal Administration

    AZD-8055 (AZD8055) is dissolved in captisol and diluted to a final captisol concentration of 30% (w/v) (Mice and Rat).

    Tumor cells (106 for U87-MG, 5×106 for A549) are injected s.c. in a volume of 0.1 mL, and mice are randomized into control and treatment groups when tumor size reach 0.2 cm3. AZD-8055 is administered by oral gavage (0.1 mL/10 g of body weight) once or twice daily. The control group receive the vehicle only. Tumor volumes (measured by caliper), animal body weight, and tumor condition are recorded twice weekly for the duration of the study. The tumor volume is calculated.
    Sprague-Dawley (SD) rats (250 g) and pregnant SD rats (16-18 days gestation, used for microglia extraction) are used. In experiment 1, 48 rats (54 rats are used, 48 rats survive after the surgery) are assigned randomly to four groups: sham group, SAH 3 h group, SAH 24 h group, SAH 72 h group. The animals in SAH 3 h, 24 h and 72 h groups are subjected to experimental SAH and are killed at 3 h, 24 h and 72 h after blood injection, respectively (n=12 for each group). In experiment 2, 72 rats (83 rats are used, 72 rats survive after the surgery) are assigned randomly to sham group (n=18), SAH+vehicle group (n=18), SAH+Rapamycin group (n=18), SAH+AZD8055 group (n=18). The rat receive a single intraperitoneal injection of Rapamycin immediately after induction of SAH, the dose of Rapamycin used is 150 μg/kg body weight. AZD8055 is administered by oral gavage with the dose of 14 mg/kg body weight. Rats in vehicle group are treated with equal volume solvent. All the rats in experiment 2 are killed at 24 h post-SAH. In experiment 3, enriched microglia are distributed into 5 groups: Control, OxyHb, OxyHb+vehicle (DMSO), OxyHb+Rapamycin and OxyHb+AZD8055. Twenty-four hours after microglia re-seeding, cells are treated with OxyHb (10 μM), DMSO (volume equal to Rapamycin and AZD8055), Rapamycin (2.74 mM), AZD8055 (0.8 nM) respectively in fresh medium. After incubation for 24 h (in 37°C, 5% CO2), cell medium is removed, washed by PBS for 3 times and fixed by 4% paraformaldehyde.





    CAS No.



    Please store the product under the recommended conditions in the Certificate of Analysis.


    Room temperature in continental US; may vary elsewhere

    Solvent & Solubility

    10 mM in DMSO

    * "<1 mg/mL" means slightly soluble or insoluble. "≥" means soluble, but saturation unknown.

    Purity: 99.23%

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