Home Neuronal Signaling 5-HT Receptor antagonist PRX-08066 Maleic acid For research use only.

PRX-08066 Maleic acid

PRX-08066 Maleic acid is a selective 5-HT2B receptor antagonist with IC50 of 3.4 nM, prevents the severity of pulmonary arterial hypertension in the MCT rat model. Phase 2.

PRX-08066 Maleic acid Chemical Structure

PRX-08066 Maleic acid Chemical Structure

CAS No. 866206-55-5

Purity & Quality Control

Batch: S801001 DMSO]104 mg/mL]false]Ethanol]98 mg/mL]false]Water]Insoluble]false Purity: 99.06%
99.06

PRX-08066 Maleic acid Related Products

Signaling Pathway

5-HT Receptor Signaling Pathways

5-HT Receptor Signaling Pathway

Biological Activity

Description PRX-08066 Maleic acid is a selective 5-HT2B receptor antagonist with IC50 of 3.4 nM, prevents the severity of pulmonary arterial hypertension in the MCT rat model. Phase 2.
Features A selective 5-HT2BR antagonist and high selectivity over the closely related 5-HT2A and 5-HT2C receptors and other receptor targets.
Targets
5-HT2B [1]
3.4 nM
In vitro
In vitro PRX-08066 inhibits 5-HT-induced mitogen-activated protein kinase activation with IC50 of 12 nM and markedly reduces thymidine incorporation with IC50 of 3 nM in Chinese hamster ovary cells expressing the human 5-HT2BR, which suggests that PRX-08066 can potentially inhibit the pathologic 5-HT-induced vascular muscularization associated with PAH. [1] PRX-08066 inhibits cell proliferation with IC50 of 0.46 nM and with a maximum inhibition of 20% and 5-HT secretion with IC50 of 6.9 nM with a maximum inhibition of 30% in the 5-HT(2B) expressing SI-NET cell line, KRJ-I. PRX-08066 inhibits isoproterenol-stimulated 5-HT release with IC50 of 1.25 nM and a maximum inhibition of 60% in NCI-H720 cells. PRX-08066 (0.5 nM) significantly inhibits ERK phosphorylation in KRJ-I cells. PRX-08066 inhibits TGFβ1, CTGF and FGF2 transcription and secretion in KRJ-I cells. PRX-08066 decreases level of transcripts for Ki67 (84%) as well as Ki67 protein (36.8%) associated with an increase in caspase 3 transcript levels in KRJ-I cells. PRX-08066 decreases level of transcripts of TGFβ1, FGF2 and TPH1 in KRJ-I cells. PRX-08066 significantly increases the number of dead cells (34%) compared with untreated controls in KRJ-I cells. PRX-08066 causes a significant increase in dead/caspase 3 positive cells (76%) and caspase 3 activity (52%) in HEK293 cells. [2]
Cell Research Cell lines KRJ-I cell lines
Concentrations ~1 μM
Incubation Time 24 hours
Method 5×103 cells/mL, seeds in 96-well plates at 100 μL (4 plates/experimental condition) are stimulated with PRX-08066 (0.1 μM to 100 nM: n = 6 wells/concentration). After 24 hours, mitochondrial activity is measured after adding MTT (3-[4,5-dimethylthiazol-2-ly]-2.5-diphenyltetrazolium bromide: 0.5mg/mL per well) for 3 hours. The optical density is read photospectrometrically at 595 nm using a microplate reader. 29 Results are normalized to control (unstimulated cells) and the effective half-maximal concentrations calculated.
In Vivo
In vivo PRX-08066 (100 mg/kg) treated groups demonstrates less right ventricular hypertrophy and septal flattening than the monocrotaline control group in rats. PRX-08066 significantly reduces peak pulmonary artery pressure at 50 mg/kg and 100 mg/kg compared with monocrotaline control rats. PRX-08066 also significantly reduces right ventricle (RV)/body weight and RV/left ventricle + septum, compared with MCT-treated rats. PRX-08066 significantly attenuates the elevation in pulmonary artery pressure and RV hypertrophy and maintains cardiac function. PRX-08066 significantly reduces the hypoxia-dependent increase in right ventricular systolic pressure in both rats and mice without affecting the systemic mean arterial pressure in the animals. [1] PRX-08066 (100 mg/kg) significantly inhibits both right ventricular systolic pressure and right ventricular/left ventricular +septum weight elevations in rats. PRX-08066 (30 mg/kg) inhibits right ventricular systolic pressure and monocrotaline-induced ERK phosphorylation in whole lung homogenates in rats. [3]
Animal Research Animal Models Male Sprague-Dawley rats
Dosages 100 mg/kg
Administration Orally

Chemical Information & Solubility

Molecular Weight 517.96 Formula

C19H17ClFN5S.C4H4O4
CAS No. 866206-55-5 SDF Download PRX-08066 Maleic acid SDF
Smiles C1CN(CCC1NC2=C3C=C(SC3=NC=N2)Cl)CC4=CC(=C(C=C4)F)C#N.C(=CC(=O)O)C(=O)O
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 104 mg/mL ( (200.78 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 98 mg/mL

Water : Insoluble


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