CAL-101 (Idelalisib, GS-1101) (Synonyms: GS1101, Idelalisib) |
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Catalog No.GC13396
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A selective PI3K p110δ inhibitor
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 870281-82-6
Sample solution is provided at 25 µL, 10mM.
CAL-101 (Idelalisib, GS-1101), is a p110δ selective phosphatidylinositol-3-kinase inhibitor in a kinome-wide screen using purified enzymes and in cell-based PI3K isoform-specific assays. Phosphatidylinositol-3-kinase p110δ serves as a central integration point for signaling from cell surface receptors known to promote malignant B-cell proliferation and survival. CAL-101 can block constitutive phosphatidylinositol-3-kinase signaling, resulting in reduced phosphorylation of Akt and other downstream effect factors, an increase in poly(ADP-ribose) polymerase and caspase cleavage and an induction of apoptosis. These effects have been observed across a broad range of immature and mature B-cell malignancies. In addition, CAL-101 abrogated protection from spontaneous apoptosis induced by B cell–activating factors CD40L, TNF-α, and fibronectin.
Reference
[1].Brian J. Lannutti, Sarah A. Meadows, Sarah E. M. Herman, Adam Kashishian, Bart Steiner, Amy J. Johnson, John C. Byrd, Jeffrey W. Tyner, Marc M. Loriaux, Mike Deininger, Brian J. Druker, Kamal D. Puri, Roger G. Ulrich, and Neill A. Giese. CAL-101, a p110δ selective phosphatidylinositol-3-kinase inhibitor for the treatment of B-cell malignancies, inhibits PI3K signaling and cellular viability. Blood. 2011; 117(2): 591 – 594.
[2].Sarah E. M. Herman, Amber L. Gordon, Amy J. Wagner, Nyla A. Heerema, Weiqiang Zhao, Joseph M. Flynn, Jeffrey Jones, Leslie Andritsos, Kamal D. Puri, Brian J. Lannutti, Neill A. Giese, Xiaoli Zhang, Lai Wei, John C. Byrd, Amy J. Johnson. Phosphatidylinositol 3-kinase-δ inhibitor CAL-101 shows promising preclinical activity in chronic lymphocytic leukemia by antagonizing intrinsic and extrinsic cellular survival signals. Blood. 2010; 116(12): 2078 – 88.
| Cell experiment: [1] | |
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Cell lines |
CD19/CD5-positive CLL cells (> 90%) |
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Preparation method |
The solubility of this compound in DMSO is >10 mM. General tips for obtaining a higher concentration: Please warm the tube at 37 °C for 10 minutes and/or shake it in the ultrasonic bath for a while.Stock solution can be stored below -20°C for several months. |
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Reaction Conditions |
< 5 μM: dose-dependently inhibits the pro-survival effect of anti-IgM = 5 μM, 24h: inhibits 2.6% activity of anti-IgM > 5 μM, 72h: maximally reduces CLL cell viability |
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Applications |
CAL-101 abrogated the pro-survival effect of anti-IgM in a dose-dependent fashion at lower dose levels (< 5 μM). CAL-101 treatment at concentrations of > 5 μM was maximally effective over the 72-hour time course in reducing CLL cell viability. At the 5 μM concentration, CAL-101 significantly decreased the mean ( SEM) pro-survival effect of anti-IgM to 92.7% ( 2.6%) after 24 hours. |
| Animal experiment : [2] | |
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Animal models |
NOD-SCID-γ-null (NSG) mice well-engrafted with de novo (n = 3) or relapsed (n = 1) childhood Ph-like ALL specimens with JAK2 mutations and/or CRLF2 alterations. |
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Dosage form |
30 mg/kg/day, 3 days, oral gavage |
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Applications |
CAL101 treatments demonstrated potent in vivo inhibition of relevant phosphoproteins, including phosphorylated (p) PI3K, mTOR, S6, and AktS473. Increased phosphorylation of other measured proteins was not observed, suggesting that proximal inhibition effectively abrogated aberrant PI3K pathway signal transduction with minimal compensatory signaling upregulation. |
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Other notes |
Please test the solubility of all compounds indoor, and the actual solubility may slightly differ with the theoretical value. This is caused by an experimental system error and it is normal. |
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References: [1] Hoellenriegel J, Meadows S A, Sivina M, et al. The phosphoinositide 3′-kinase delta inhibitor, CAL-101, inhibits B-cell receptor signaling and chemokine networks in chronic lymphocytic leukemia. Blood, 2011, 118(13): 3603-3612. [2] Li Y, Ryan T, Vincent T, et al. In vivo efficacy of PI3K pathway signaling inhibition for Philadelphia chromosome-like acute lymphoblastic leukemia. Blood, 2013, 122(21): 2672-2672. | |
| Cas No. | 870281-82-6 | SDF | |
| Synonyms | GS1101, Idelalisib | ||
| Chemical Name | 5-fluoro-3-phenyl-2-[(1S)-1-(7H-purin-6-ylamino)propyl]quinazolin-4-one | ||
| Canonical SMILES | CCC(C1=NC2=C(C(=CC=C2)F)C(=O)N1C3=CC=CC=C3)NC4=NC=NC5=C4NC=N5 | ||
| Formula | C22H18FN7O | M.Wt | 415.43 |
| Solubility | ≥ 80.2 mg/mL in DMSO, ≥ 2.1 mg/mL in EtOH with ultrasonic and warming | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.4071 mL | 12.0357 mL | 24.0714 mL |
| 5 mM | 481.4 μL | 2.4071 mL | 4.8143 mL |
| 10 mM | 240.7 μL | 1.2036 mL | 2.4071 mL |
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Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )
Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL saline, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
- View current batch:
- Purity: >99.50% Appearance: A solid
- COA (Certificate of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 30 reference(s) in Google Scholar.)















