T807 (AV-1451) (Synonyms: AV-1451) |
Catalog No.GC30789 |
T807 (AV-1451) a novel tau positron emission tomography (PET) tracer.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 1415379-56-4
Sample solution is provided at 25 µL, 10mM.
Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Kinase experiment: | 10 mg/mL frozen brain homogenate aliquots are thawed and diluted 10-fold in binding buffer to 1 mg/mL. 500 μL of appropriate concentrations of non-radioactive T807 to be tested are combined with 400 μL of [3H] T807 (29.7 Ci/mmol) in a volume of 900 μL of binding buffer. The assay begins by addition of 100 μL of the 1 mg/mL brain homogenate to achieve a final concentration of 0.10 mg tissue/mL for radioligands. The final concentration of [3H] T807 is typically 1-2 nM. After incubation at room temperature for 60 minutes, the binding mixture is filtered and rapidly washed 5 times with 3 mL binding buffer. The filters are counted[2]. |
Animal experiment: | Mice: Six male mice at each time point are administered 250 mCi [18F]T807 (in 200 mL saline) via tail vein injection. At 5, 15, and 30 minutes after administration, the mice are anesthetized and 500-mL whole blood samples and centrifuged. After euthanasia, the liver, kidneys, skeletal muscle (right quadriceps), brain, and bone (femur) are harvested and weighed. Each of the tissue samples are transferred to gamma counter tubes and counted[1]. |
References: [1]. Xia CF, et al. [(18)F]T807, a novel tau positron emission tomography imaging agent for Alzheimer's disease. Alzheimers Dement. 2013 Nov;9(6):666-76. |
T807 a novel tau positron emission tomography (PET) tracer.
Aggregated tau protein is a major neuropathological substrate central to the pathophysiology of neurodegenerative diseases such as Alzheimer's disease (AD). In vitro autoradiography results show that [18F]T807 exhibits strong binding to PHF-tau positive human brain sections (Kd=14.6 nM). A comparison of autoradiography and double immunohistochemical staining of PHF-tau and Ab on adjacent sections demonstrates that [18F]T807 binding colocalizes with immunoreactive PHF-tau pathology, but does not highlight Ab plaques[1]. [18F]T807 strongly binds to tau lesions primarily made of paired helical filaments in Alzheimer's brains e.g. intra and extraneuronal tangles and dystrophic neurites. [18F]T807 off-target binding to neuromelanin- and melanin-containing cells and, to a lesser extent, to brain hemorrhagic lesions is identified[2].
[18F]T807 is able to cross the blood-brain barrier and ished out quickly in mice model. [18F]T807 clears rapidly from the brain, with activity values decreasing from 4.43% ID/g at 5 minutes to 0.62% ID/g at 30 minutes. Kidney elimination is a significant clearance pathway, resulting in a maximum tracer concentration of 14.99% ID/g in the kidneys at 5 minutes, which decreases to 5.52% ID/g at 30 minutes. The accumulation of activity in muscle and bone remain relatively low throughout the PET scan[1].
[1]. Xia CF, et al. [(18)F]T807, a novel tau positron emission tomography imaging agent for Alzheimer's disease. Alzheimers Dement. 2013 Nov;9(6):666-76. [2]. Marquié M, et al. Validating novel tau positron emission tomography tracer [F-18]-AV-1451 (T807) on postmortem brain tissue. Ann Neurol. 2015 Nov;78(5):787-800.
Cas No. | 1415379-56-4 | SDF | |
Synonyms | AV-1451 | ||
Canonical SMILES | FC1=CC=C(C2=CC3=C(C=C2)C(C=NC=C4)=C4N3)C=N1 | ||
Formula | C16H10FN3 | M.Wt | 263.27 |
Solubility | DMSO : ≥ 16.6 mg/mL (63.05 mM) | 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 | |||
1 mg | 5 mg | 10 mg | |
1 mM | 3.7984 mL | 18.9919 mL | 37.9838 mL |
5 mM | 0.7597 mL | 3.7984 mL | 7.5968 mL |
10 mM | 0.3798 mL | 1.8992 mL | 3.7984 mL |
Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
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.
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