AP1903 (Synonyms: AP1903) |
| Catalog No.GC15586 |
AP1903 (AP1903) is a dimerizer agent that acts by cross-linking the FKBP domains. AP1903 (AP1903) dimerizes the Caspase 9 suicide switch and rapidly induces apoptosis.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 195514-63-7
Sample solution is provided at 25 µL, 10mM.
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IC50: 5 nM for F36V-FKBP in competition fluorescence polarization assay
FKBP ligand homodimers can be used to trigger signaling events inside cells and animals that have been engineered to express fusions between and FKBP appropriate signaling domains. However, use of these dimerizers in vivo is potentially limited by ligand binding to endogenous FKBP. AP1903 is a homodimer of the modified ligand for FKBP.
In vitro: By selective inhibition of FKBP, AP1903 elicited potent and dose-dependent apoptotic death of the human fibrosarcoma line HT1080 engineered cells in culture, with an EC50 of ~0.1 nM [1].
In vivo: In an mouse model of conditional cell ablation, animals were i.v. treated with various doses of AP1903, and then serum hGH levels were determined as a measure of the number of surviving cells. Results showed that AP1903 elicited a dose-dependent decrease in levels of serum hGH, with a half-maximal effective dose of 0.4 mg/kg [1].
Clinical trials: In an intravenous, single-blind, placebo- and saline-controlled, ascending-dose study, AP1903 was shown to be safe and well tolerated at all dose levels and demonstrated a favorable PK profile at doses well above the anticipated therapeutic dose [2].
References:
[1] Clackson T, Yang W, Rozamus LW, Hatada M, Amara JF, Rollins CT, Stevenson LF, Magari SR, Wood SA, Courage NL, Lu X, Cerasoli F Jr, Gilman M, Holt DA. Redesigning an FKBP-ligand interface to generate chemical dimerizers with novel specificity. Proc Natl Acad Sci U S A. 1998 Sep 1;95(18):10437-42.
[2] Iuliucci JD, Oliver SD, Morley S, Ward C, Ward J, Dalgarno D, Clackson T, Berger HJ. Intravenous safety and pharmacokinetics of a novel dimerizer drug, AP1903, in healthy volunteers. J Clin Pharmacol. 2001 Aug;41(8):870-9.
| Kinase experiment [1]: | |
|
FKBP Binding Assay |
Subsaturating concentrations of protein were incubated for 30 min with 2.5 nM fluoro-FK506 and serial dilutions of competitor ligand in the wells of a Dynatech microfluor plate. Polarization was read on a Jolley FPM-2 (Jolley Consulting and Research, Grayslake, IL). The increase in polarization on binding was used as a direct readout of percentage of bound probe, compared with controls containing no competitor (100%) or no protein (0%). The concentration of competitor resulting in a 50% probe displacement (IC50) was determined by a nonlinear least square fit by using the four-parameter algorithm. |
| Cell experiment [1]: | |
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Cell lines |
Cloned HT1080 cell lines (ATCC CCL-121) |
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Preparation method |
Limited solubility. General tips for obtaining a higher concentration: Please warm the tube at 37 ℃ for 10 minutes and/or shake it in the ultrasonic bath for a while. Stock solution can be stored below -20℃ for several months. |
|
Reaction Conditions |
37℃ |
|
Applications |
The human fibrosarcoma line HT1080 was engineered to express stably a fusion protein comprising a myristoylation sequence, two copies of F36V-FKBP, and the human Fas intracellular domain. AP1903 elicits potent and dose-dependent apoptotic death of these engineered cells in culture, with an EC50 of ≈0.1 nM. |
| Animal experiment [1]: | |
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Animal models |
Male nu/nu mice |
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Dosage form |
intravenous injection at 0.01-100 mg/kg |
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Preparation method |
Formulated in [50% N,N-dimethylacetamide/50% (90% PEG-400/10% Tween 80)] at 2 ml/kg |
|
Applications |
Male nu/nu mice were injected with HT1080 cell line expressing a Fas-F36V-FKBP construct that also constitutively secretes hGH. AP1903 exhibits a dose-dependent decrease in serum hGH levels, with a half-maximal effective dose of 0.4 ± 0.1 mg/kg. |
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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. Clackson T, Yang W, Rozamus LW et al. Redesigning an FKBP-ligand interface to generate chemical dimerizers with novel specificity. Proc Natl Acad Sci U S A. 1998 Sep 1;95(18):10437-42 | |
| Cas No. | 195514-63-7 | SDF | |
| Synonyms | AP1903 | ||
| Canonical SMILES | O=C([C@@H](C(C=C1OC)=CC(OC)=C1OC)CC)N2[C@H](C(O[C@@H](C3=CC=CC(OCC(NCCNC(COC4=CC([C@H](CCC(C=C5OC)=CC=C5OC)OC([C@H]6N(C([C@@H](C(C=C7OC)=CC(OC)=C7OC)CC)=O)CCCC6)=O)=CC=C4)=O)=O)=C3)CCC(C=C8)=CC(OC)=C8OC)=O)CCCC2 | ||
| Formula | C78H98N4O20 | M.Wt | 1411.63 |
| Solubility | ≥ 23.5mg/mL in DMSO | Storage | Store at -20°C,unstable in solution, ready to use. |
| 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 | 0.7084 mL | 3.542 mL | 7.084 mL |
| 5 mM | 0.1417 mL | 0.7084 mL | 1.4168 mL |
| 10 mM | 0.0708 mL | 0.3542 mL | 0.7084 mL |
Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
g
μL
Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)
Calculation results:
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 ddH2O, 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: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 13 reference(s) in Google Scholar.)
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