SR 142948
Based on 1 publication(s) in Google Scholar
SR 142948 is an orally active and selective non-peptide neurotensin receptor (NT) antagonist with IC50s of 1.19 nM, 0.32 nM, 3.96 nM in h-NTR1-CHO cells, HT-29 cells, and adult rat brain, respectively. SR 142948 antagonizes NT-induced inositol monophosphate formation in HT-29 cells with an IC50 of 3.9 nM. SR 142948 blocks hypothermia, analgesia and steering behavior induced by NT in vivo. SR 142948 shows blood-brain permeability and can be used in study of psychiatric disorders.
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- Pureté: 99.27%
- CAS No.: 184162-64-9
- Formule: C39H51N5O6
- Masse moléculaire:685.85
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Stockage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month
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Activité biologique
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Chemical Information
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Solvant et solubilité
- Pureté et documentation
- Références
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Help & FAQs
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Publications Citing Use of MedChemExpress (MCE) SR 142948
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Activité biologique
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Cell Line
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Type | Value | Description | References |
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| CHO | IC50 |
4 nM
Compound: 6, SR 142948A
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Antagonist activity at NTSR1 (unknown origin) expressed in CHO cells assessed as inhibition of NT(8-13) peptide-induced change in intracellular Ca2+ level preincubated for 45 mins by FLIPR assay
Antagonist activity at NTSR1 (unknown origin) expressed in CHO cells assessed as inhibition of NT(8-13) peptide-induced change in intracellular Ca2+ level preincubated for 45 mins by FLIPR assay
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[PMID: 24997685] |
| CHO-K1 | EC50 |
18 nM
Compound: 4, SR142948a
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Agonist activity at rat neurotensin receptor type 2 expressed in CHOK1 cells assessed as increase in calcium release by FLIPR assay
Agonist activity at rat neurotensin receptor type 2 expressed in CHOK1 cells assessed as increase in calcium release by FLIPR assay
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[PMID: 25499438] |
| CHO-K1 | EC50 |
20 nM
Compound: 5b, SR142948a
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Agonist activity at rat NTS2 stably expressed in CHOK1 cells assessed as induction of calcium release by FLIPR assay
Agonist activity at rat NTS2 stably expressed in CHOK1 cells assessed as induction of calcium release by FLIPR assay
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[PMID: 24856674] |
| CHO-K1 | EC50 |
22 nM
Compound: 3b, SR142948a
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Agonist activity at rat NTS2 receptor expressed in CHO-K1 cells assessed as calcium mobilization by FLIPR assay
Agonist activity at rat NTS2 receptor expressed in CHO-K1 cells assessed as calcium mobilization by FLIPR assay
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[PMID: 25157640] |
SR 142948 (1 µM; 90 min) inhibits expression of c-fos and krox24 in CHO-hNT1-R cells[1].
SR 142948 (0-1 µM; 1 h) exhibits good antagonistic activity by inhibiting [125I-Tyr3]NT binds to h-NTR1-CHO and HT 29 cell membranes, with IC50s of 1.19 and 0.32 nM, respectively[2].
SR 142948 (0-1 µM; 30 min) antagonizes production of IP1 stimulated by NT both in h-NTR1-CHO and HT 29 cells, in a concentration-dependent manner[2].
SR 142948 (1, 10 nM; 60-80 s) antagonizes intracellular calcium mobilization stimulated by NT in h-NTR1-CHO cells[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
SR 142948 (0.01, 0.03, 0.3 mg/kg; i.p.; single) prevents the enhancement of ACh release produced by NT (100 nM), in a dose-dependent manner[2].
SR 142948 (0-10 mg/kg; p.o.; single) partially but significantly blocks NT-induced hypothermia (53% at 2 mg/kg in rats and 54% at 4 mg/kg in mice)[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Female Swiss albino CD1 mice (25-30 g; intrastriatal injection of 10 pg/mouse NT)[2].
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Dosage:2 µg/kg
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Administration:Oral administration; single.
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Result:Inhibited the turning behavior with maximal and significant antagonism between 1-2 h after administration.
Chemical Information
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CAS No. 184162-64-9
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Appearance Solid
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Masse moléculaire 685.85
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Formule C39H51N5O6
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Color White to off-white
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SMILES
O=C(C1=NN(C2=C(C=C(C(N(C)CCCN(C)C)=O)C=C2)C(C)C)C(C3=C(C=CC=C3OC)OC)=C1)NC4([C@H]5C[C@H](C6)C[C@@H]4C[C@H]6C5)C(O)=O
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Livraison
Room temperature in continental US; may vary elsewhere.
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Stockage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month
Publications (1)
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Journal Impact Factor
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Most Recent
Solvant et solubilité
DMSO : 100 mg/mL (145.80 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 5 mg/mL (7.29 mM); Clear solution
This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 5 mg/mL (7.29 mM); Clear solution
This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
Pureté et documentation
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Fiche technique (276 KB)
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SDS (254 KB)
- English - EN (254 KB)
- Français - FR (254 KB)
- Deutsch - DE (254 KB)
- Norwegian - NO (254 KB)
- Español - ES (254 KB)
- Swedish - SV (254 KB)
- Italian - IT (254 KB)
- Korean - KR (254 KB)
- Portuguese - PT (254 KB)
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Instruction de manipulation (2659 KB)
Références
[1]. Portier M, et al. Neurotensin type 1 receptor-mediated activation of krox24, c-fos and Elk-1: preventing effect of the neurotensin antagonists SR 48692 and SR 142948. FEBS Lett. 1998 Jul 31;432(1-2):88-93. [Content Brief]
[2]. Gully D, et al. Biochemical and pharmacological activities of SR 142948A, a new potent neurotensin receptor antagonist. J Pharmacol Exp Ther. 1997 Feb;280(2):802-12. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO | 1 mM | 1.4580 mL | 7.2902 mL | 14.5804 mL | 36.4511 mL |
| 5 mM | 0.2916 mL | 1.4580 mL | 2.9161 mL | 7.2902 mL | |
| 10 mM | 0.1458 mL | 0.7290 mL | 1.4580 mL | 3.6451 mL | |
| 15 mM | 0.0972 mL | 0.4860 mL | 0.9720 mL | 2.4301 mL | |
| 20 mM | 0.0729 mL | 0.3645 mL | 0.7290 mL | 1.8226 mL | |
| 25 mM | 0.0583 mL | 0.2916 mL | 0.5832 mL | 1.4580 mL | |
| 30 mM | 0.0486 mL | 0.2430 mL | 0.4860 mL | 1.2150 mL | |
| 40 mM | 0.0365 mL | 0.1823 mL | 0.3645 mL | 0.9113 mL | |
| 50 mM | 0.0292 mL | 0.1458 mL | 0.2916 mL | 0.7290 mL | |
| 60 mM | 0.0243 mL | 0.1215 mL | 0.2430 mL | 0.6075 mL | |
| 80 mM | 0.0182 mL | 0.0911 mL | 0.1823 mL | 0.4556 mL | |
| 100 mM | 0.0146 mL | 0.0729 mL | 0.1458 mL | 0.3645 mL |
SR 142948 Related Classifications
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