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T807 (Synonyms: AV-1451)

目录号: HY-101184 纯度: ≥95.0%

T807是一种新型的tau正电子发射断层扫描 (PET) 示踪剂。

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T807 Chemical Structure

T807 Chemical Structure

CAS No. : 1415379-56-4

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规格 价格 是否有货 数量
10 mM * 1 mL in DMSO ¥500
5 mg ¥800
10 mg ¥1350
50 mg ¥4100
100 mg ¥7000
200 mg   询价  
500 mg   询价  

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T807 a novel tau positron emission tomography (PET) tracer.

(In Vitro)

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].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

(In Vivo)

[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].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Clinical Trial





Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
In Vitro: 

DMSO : ≥ 16.6 mg/mL (63.05 mM)

* "≥" means soluble, but saturation unknown.

浓度 溶剂体积 质量 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

储备液的保存方式和期限:-80°C, 6 months; -20°C, 1 month。-80°C 储存时,请在 6 个月内使用,-20°C 储存时,请在 1 个月内使用。

Kinase Assay

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].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Administration

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].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

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