Protirelin
Based on 4 publication(s) in Google Scholar
Protirelin is a highly conserved neuropeptide that exerts the hormonal control of thyroid-stimulating hormone (TSH) levels as well as neuromodulatory functions.
For research use only. We do not sell to patients.
- Purity: 99.98%
- CAS No.: 24305-27-9
- Formula: C16H22N6O4
- Molecular Weight:362.38
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Storage:
Sealed storage, away from moisture and light.
Powder -80°C, 2 years , -20°C, 1 year* In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Protocol
- Purity & Documentation
- References
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Help & FAQs
Publications Citing Use of MedChemExpress (MCE) Protirelin
MoreAll Endogenous Metabolite Isoforms
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Biological Activity
Thyroid hormone receptor
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| HEK293 | EC50 |
0.003 μM
Compound: TRH
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Signaling (activation) potency for thyrotropin releasing hormone receptor 1 expressed in HEK 293EM cells with CREB-luciferase reporter upon incubation with the compound for 6 hr at 37 degree C and pH 7.8; Range = 0.002-0.004 uM
Signaling (activation) potency for thyrotropin releasing hormone receptor 1 expressed in HEK 293EM cells with CREB-luciferase reporter upon incubation with the compound for 6 hr at 37 degree C and pH 7.8; Range = 0.002-0.004 uM
|
[PMID: 16162016] |
| HEK293 | EC50 |
0.003 μM
Compound: TRH
|
Signaling (activation) potency for thyrotropin releasing hormone receptor 2 expressed in HEK 293EM cells with CREB-luciferase reporter upon incubation with the compound for 6 hr at 37 degree C and pH 7.8
Signaling (activation) potency for thyrotropin releasing hormone receptor 2 expressed in HEK 293EM cells with CREB-luciferase reporter upon incubation with the compound for 6 hr at 37 degree C and pH 7.8
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[PMID: 16162016] |
| HEK293 | EC50 |
0.001 μM
Compound: TRH
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Agonist activity at mouse TRH-R1 expressed in HEK293 cells assessed as induction of changes in intracellular Ca2+ level by FLIPR method
Agonist activity at mouse TRH-R1 expressed in HEK293 cells assessed as induction of changes in intracellular Ca2+ level by FLIPR method
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[PMID: 26216015] |
| HEK293 | IC50 |
0.0026 μM
Compound: TRH
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Displacement of [3H]-1-MeHis-TRH from mouse TRH-R1 expressed in HEK293 cells incubated up to 4 hrs by scintillation counting method
Displacement of [3H]-1-MeHis-TRH from mouse TRH-R1 expressed in HEK293 cells incubated up to 4 hrs by scintillation counting method
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[PMID: 26216015] |
| HEK293 | IC50 |
0.007 μM
Compound: TRH
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Displacement of [3H]-1-MeHis-TRH from mouse TRH-R2 expressed in HEK293 cells incubated up to 4 hrs by scintillation counting method
Displacement of [3H]-1-MeHis-TRH from mouse TRH-R2 expressed in HEK293 cells incubated up to 4 hrs by scintillation counting method
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[PMID: 26216015] |
| HEK293 | EC50 |
0.00052 μM
Compound: TRH
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Agonist activity at mouse TRH-R2 expressed in HEK293 cells assessed as induction of changes in intracellular Ca2+ level by FLIPR method
Agonist activity at mouse TRH-R2 expressed in HEK293 cells assessed as induction of changes in intracellular Ca2+ level by FLIPR method
|
[PMID: 26216015] |
| HEK293 | EC50 |
0.52 nM
Compound: TRH
|
Agonist activity at mouse TRH-R2 expressed in HEK293 cells assessed as induction of changes in intracellular Ca2+ level by FLIPR method
Agonist activity at mouse TRH-R2 expressed in HEK293 cells assessed as induction of changes in intracellular Ca2+ level by FLIPR method
|
[PMID: 26216015] |
| HEK293 | EC50 |
0.001 μM
Compound: TRH
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Agonist activity at mouse TRH-R1 expressed in HEK293 cells assessed as Ca2+ release by FLIPR assay
Agonist activity at mouse TRH-R1 expressed in HEK293 cells assessed as Ca2+ release by FLIPR assay
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[PMID: 26854379] |
| HEK293 | EC50 |
0.0031 μM
Compound: TRH
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Agonist activity at mouse TRH-R2 expressed in HEK293 cells assessed as IP1 formation after 1 hr by ELISA
Agonist activity at mouse TRH-R2 expressed in HEK293 cells assessed as IP1 formation after 1 hr by ELISA
|
[PMID: 26854379] |
| HEK293 | EC50 |
0.0032 μM
Compound: TRH
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Agonist activity at mouse TRH-R1 expressed in HEK293 cells assessed as IP1 formation after 1 hr by ELISA
Agonist activity at mouse TRH-R1 expressed in HEK293 cells assessed as IP1 formation after 1 hr by ELISA
|
[PMID: 26854379] |
| HEK293 | IC50 |
0.007 μM
Compound: TRH
|
Displacement of [3H]-Me-His-TRH from mouse TRH-R2 expressed in HEK293 cells preincubated for 15 mins measured after 4 hrs
Displacement of [3H]-Me-His-TRH from mouse TRH-R2 expressed in HEK293 cells preincubated for 15 mins measured after 4 hrs
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[PMID: 26854379] |
| HEK293 | IC50 |
0.026 μM
Compound: TRH
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Displacement of [3H]-Me-His-TRH from mouse TRH-R1 expressed in HEK293 cells preincubated for 15 mins measured after 4 hrs
Displacement of [3H]-Me-His-TRH from mouse TRH-R1 expressed in HEK293 cells preincubated for 15 mins measured after 4 hrs
|
[PMID: 26854379] |
| HEK293 | EC50 |
0.0005 μM
Compound: TRH
|
Agonist activity at mouse TRH-R2 expressed in HEK293 cells assessed as Ca2+ release by FLIPR assay
Agonist activity at mouse TRH-R2 expressed in HEK293 cells assessed as Ca2+ release by FLIPR assay
|
[PMID: 26854379] |
| HEK293 | EC50 |
0.5 nM
Compound: TRH
|
Agonist activity at mouse TRH-R2 expressed in HEK293 cells assessed as Ca2+ release by FLIPR assay
Agonist activity at mouse TRH-R2 expressed in HEK293 cells assessed as Ca2+ release by FLIPR assay
|
[PMID: 26854379] |
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 24305-27-9
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Appearance Solid
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Molecular Weight 362.38
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Formula C16H22N6O4
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Color White to off-white
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Synonyms
Thyrotropin-releasing-hormone; TRH
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Sequence
{pGlu}-His-Pro-NH2
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Sequence Shortening
{pGlu}-HP-NH2
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Structure Classification
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Initial Source
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Sealed storage, away from moisture and light
Powder -80°C 2 years -20°C 1 year * In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)
Publications (4)
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Journal Impact Factor
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Most Recent
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Nat Immunol
2024 Apr;25(4):659-670. PMID: 38499799 -
Int J Biol Macromol
Unveiling the mechanistic link between peroxiredoxin inhibition and ferroptosis-like cell death induced by Dinaciclib in Entamoeba histolytica. [Abstract]2026 Mar:350:150992. PMID: 41713546 -
Cell Rep
ZDHHC3-mediated SCAP S-acylation promotes cholesterol biosynthesis and tumor immune escape in hepatocellular carcinoma. [Abstract]2024 Nov 9;43(11):114962. PMID: 39522165 -
Obesity
Association between thyroid hormone resistance and obesity: a cross-sectional study and mouse stimulation test. [Abstract]2024 Aug;32(8):1483-1493. PMID: 39045674
Solvent & Solubility
DMSO : 250 mg/mL (689.88 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 (sealed storage, away from moisture and light). 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 (sealed storage, away from moisture and light). 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)
Protocol
Rats[2]
Ninety male Wistar rats weighing 200-250 g are subjected to the study. In the first experiment, 50 rats are divided into five groups randomly. Four doses of Protirelin dissolved in physiological saline, i. e., 1 mg/kg, 5mg/kg, 10 mg/kg and 20 mg/kg, are administered intraperitoneally to the four groups and saline to the remaining control group. Rectal temperature is measured at the place 5 cm inner from the anus with the electronic thermister before and after treatment with Protirelin or saline. In the second experiment, 40 rats are thyroidectomized or sham-operated under the anesthesia by thiopental sodium. Ten days after the operation, 20 mg/kg of Protirelin or saline is administered to the thyroidectomized and sham-operated animals by i. p. and rectal temperature is measured using the same method as used in the first experiment. These two experiments are undertaken from 1 p, m, to 4 p. m. and the room temperature is kept at 24±1°C through the experiments including the breeding period. For a statistical analysis, Student's t test (two-tailed) is adopted.
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Purity & Documentation
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Data Sheet (279 KB)
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SDS (394 KB)
- English - EN (394 KB)
- Français - FR (394 KB)
- Deutsch - DE (394 KB)
- Norwegian - NO (394 KB)
- Español - ES (394 KB)
- Swedish - SV (394 KB)
- Italian - IT (394 KB)
- Portuguese - PT (394 KB)
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Handling Instructions (2659 KB)
References
[1]. Van Sinay E, et al. Evolutionarily conserved TRH neuropeptide pathway regulates growth in Caenorhabditis elegans. Proc Natl Acad Sci U S A. 2017 May 16;114(20):E4065-E4074. [Content Brief]
[2]. Noda Y, et al. Hyperthermia induced by thyrotropin-releasing hormone (TRH, Protirelin) in the rat. Kurume Med J. 1979;26(2):107-12. [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 (sealed storage, away from moisture and light). 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 | 2.7595 mL | 13.7977 mL | 27.5953 mL | 68.9884 mL |
| 5 mM | 0.5519 mL | 2.7595 mL | 5.5191 mL | 13.7977 mL | |
| 10 mM | 0.2760 mL | 1.3798 mL | 2.7595 mL | 6.8988 mL | |
| 15 mM | 0.1840 mL | 0.9198 mL | 1.8397 mL | 4.5992 mL | |
| 20 mM | 0.1380 mL | 0.6899 mL | 1.3798 mL | 3.4494 mL | |
| 25 mM | 0.1104 mL | 0.5519 mL | 1.1038 mL | 2.7595 mL | |
| 30 mM | 0.0920 mL | 0.4599 mL | 0.9198 mL | 2.2996 mL | |
| 40 mM | 0.0690 mL | 0.3449 mL | 0.6899 mL | 1.7247 mL | |
| 50 mM | 0.0552 mL | 0.2760 mL | 0.5519 mL | 1.3798 mL | |
| 60 mM | 0.0460 mL | 0.2300 mL | 0.4599 mL | 1.1498 mL | |
| 80 mM | 0.0345 mL | 0.1725 mL | 0.3449 mL | 0.8624 mL | |
| 100 mM | 0.0276 mL | 0.1380 mL | 0.2760 mL | 0.6899 mL |
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