Quinidine polygalacturonate
Based on 24 publication(s) in Google Scholar
Quinidine polygalacturonate is an orally active antiarrhythmic agent. Quinidine polygalacturonate reduces the expression level of P-gp, inhibits P-gp-mediated efflux, increases the intracellular accumulation of P-gp substrates, induces PARP cleavage and Caspase-3 activation, and elevates the proportion of Apoptotic cells at the sub-G1 phase. Quinidine polygalacturonate exerts sustained block and open-channel block effects on IK(f). Quinidine polygalacturonate alters the urinary metabolic ratio of Amphetamine, modulates the Pentylenetetrazol-induced seizure threshold, and regulates the anticonvulsant effect of Dextromethorphan. Quinidine polygalacturonate can be used in studies related to uterine sarcoma and seizures.
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- CAS. Nr.: 27555-34-6
- Formel: C26H34N2O9
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Publications Citing Use of MedChemExpress (MCE) Quinidine polygalacturonate
More- Nat Commun. 2024 Jun 19;15(1):5230. [Abstract]
- Adv Sci (Weinh). 2025 Aug 19:e05666. [Abstract]
- J Hazard Mater. 2021 Aug 15:416:125764. [Abstract]
- Environ Int. 2019 Jun:127:694-703. [Abstract]
- Anal Chem. 2025 Nov 18;97(45):25158-25167. [Abstract]
- J Med Chem. 2021 Mar 11;64(5):2725-2738. [Abstract]
- J Med Chem. 2020 Oct 8;63(19):11085-11099. [Abstract]
- Environ Pollut. 2024 Aug 15:355:124214. [Abstract]
- Pharmaceutics. 2025 Mar 26;17(4):423. [Abstract]
- J Agric Food Chem. 2022 Mar 2;70(8):2520-2528. [Abstract]
- Cell Mol Life Sci. 2025 Nov 25;82(1):419. [Abstract]
- RSC Adv. 2019 May 23;9(28):16136-16146. [Abstract]
- Front Pharmacol. 2020 Jul 31:11:1038. [Abstract]
- Cell Calcium. 2026 Mar:134:103125. [Abstract]
- Virol J. 2024 Aug 8;21(1):181. [Abstract]
- J Anim Sci. 2022 Apr 1;100(4):skac069. [Abstract]
- Andrology. 2025 Oct;13(7):1805-1815. [Abstract]
- AAPS J. 2021 Jun 28;23(4):91. [Abstract]
- Food Chem Toxicol. 2022 Nov:169:113431. [Abstract]
- Vet Microbiol. 2026 May:316:110992. [Abstract]
- Pharmacol Res Perspect. 2021 Oct;9(5):e00879. [Abstract]
- Pharmacol Res Perspect. 2020 Apr;8(2):e00575. [Abstract]
- Eur J Drug Metab Pharmacokinet. 2022 Sep;47(5):639-652. [Abstract]
- Chemosphere. 2021 Dec:284:131347. [Abstract]
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Flow Cytometry
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Bio/Physico-chemical Assay
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WB
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Bio/Physico-chemical Assay
Alle Caspase Isoform-spezifische Produkte anzeigen
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Biologische Aktivität
Beschreibung
IC50 & Target
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Caspase 3 |
In Vitro
Quinidine (10 μM; 24 h) polygalacturonate potentiates Paclitaxel (HY-B0015)-induced cytotoxicity in P-gp-positive MES-SA/DX5 uterine sarcoma cells (reducing paclitaxel IC50 to 80.56 nM) but does not alter paclitaxel cytotoxicity in P-gp-negative MES-SA uterine sarcoma cells[1].
Quinidine (10 μM; 24 h) polygalacturonate significantly increases the sub-G1 apoptotic portion in paclitaxel-treated P-gp-positive MES-SA/DX5 uterine sarcoma cells, enhancing paclitaxel-induced apoptosis[1].
Quinidine inhibits the in vitro metabolism of Debrisoquine in rat liver microsomes, with lower potency than observed in human liver microsomes[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only. Further protocols information, click here.
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Cell Line:P-gp-negative MES-SA uterine sarcoma cells, P-gp-positive MES-SA/DX5 uterine sarcoma cells
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Concentration:10 μM
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Incubation Time:24 h
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Result:Did not significantly alter the cytotoxicity of paclitaxel in MES-SA cells, with paclitaxel IC50 remaining comparable to paclitaxel alone (19 nM vs. 18 nM).
Strongly potentiated paclitaxel-induced cytotoxicity in MES-SA/DX5 cells, reducing the IC50 of paclitaxel from 13851 nM to 81 nM.
Showed no significant cytotoxicity up to 100 μM in either cell line.\nShowed concentration-dependent cytotoxicity with docetaxel against MES-SA cells.
Enhanced docetaxel-induced cytotoxicity in MES-SA/DX5 cells more potently than hydrocinchonine, alongside cinchonine.
Showed no significant cytotoxicity up to 100 μM in either cell line.
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Cell Line:P-gp-positive MES-SA/DX5 uterine sarcoma cells (paclitaxel-treated)
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Concentration:10 μM
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Incubation Time:24 h
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Result:Significantly increased the sub-G1 apoptotic portion (G0 = 27.19) in paclitaxel-treated MES-SA/DX5 cells, whereas paclitaxel alone induced minimal sub-G1 accumulation (G0 = 0.05).
In Vivo
Quinidine (10-30 mg/kg; intraperitoneal injection; single administration) polygalacturonate significantly elevates the threshold of pentylenetetrazol-induced tonic convulsions in male NMRI mice[4].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:Lewis (male, 175-225 g)[3]
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Dosage:80 mg/kg
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Administration:p.o.; single dose
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Result:Reduced urinary excretion of p-hydroxyamphetamine to 7.2% of vehicle-control levels in the 0-24 h collection period.
Reduced urinary excretion of p-hydroxyamphetamine to 24.1% of vehicle-control levels in the 24-48 h collection period.
Increased amphetamine excretion to 542% of control levels in the 24-48 h period.
Excreted an average of 0.40 μmol p-hydroxyamphetamine and 7.80 μmol amphetamine in the 0-24 h period.
Excreted an average of 3.60 μmol amphetamine and a significantly reduced amount of p-hydroxyamphetamine relative to controls in the 24-48 h period.
Achieved total combined excretion of amphetamine and p-hydroxyamphetamine over 48 h equal to 79.7% of the administered dose, which was not significantly different from control groups.
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Animal Model:NMRI (male, 5-6 weeks old, 25-30 g)[4]
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Dosage:10 mg/kg; 20 mg/kg; 30 mg/kg
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Administration:i.p.; single dose
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Result:Did not alter the pentylenetetrazole threshold dose for onset of myoclonic twitch.
Significantly increased the pentylenetetrazole threshold dose for onset of tonic hind limb extension compared to saline-treated controls (p < 0.05).
Chemical Information
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CAS. Nr. 27555-34-6
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Formel C26H34N2O9
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SMILES
O=C[C@H](O)[C@@H](O)[C@@H](O)[C@H](O)C(O)=O.O[C@H]([C@]1([H])[N@@]2C[C@H](C=C)[C@@H](CC2)C1)C3=CC=NC4=CC=C(OC)C=C34.[n].[n]
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Versand
Room temperature in continental US; may vary elsewhere.
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Speicherung
Please store the product under the recommended conditions in the Certificate of Analysis.
Publications (24)
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Journal Impact Factor
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Most Recent
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Nat Commun
Small molecule in situ resin capture provides a compound first approach to natural product discovery. [Abstract]2024 Jun 19;15(1):5230. PMID: 38898025 -
Adv Sci (Weinh)
LPS-Induced Mitochondrial Damage via SLC41A1-Mediated Magnesium Ion Efflux Leads to the Pyroptosis of Dental Stem Cells. [Abstract]2025 Aug 19:e05666. PMID: 40831212
Quinidine polygalacturonate purchased from MedChemExpress. Usage Cited in: Adv Sci (Weinh). 2025 Aug 19:e05666. [Abstract]
Quinidine rescued [Mg2⁺]i levels in LPS‐treated or TRPM7‐silenced DPSCs and SCAP.
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J Hazard Mater
Stereostructure-activity mechanism of cyproconazole by cytochrome P450 in rat liver microsomes: A combined experimental and computational study. [Abstract]2021 Aug 15:416:125764. PMID: 33827004
Quinidine polygalacturonate purchased from MedChemExpress. Usage Cited in: J Hazard Mater. 2021 Aug 15:416:125764. [Abstract]
Effects of CYP enzymes inhibitors on metabolic rates of cyproconazole stereoisomers in the in vitro incubation mixtures with RLMs. The asterisks (*) indicates the significant difference in metabolic rates under inhibition compared to the control.
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Environ Int
2019 Jun:127:694-703. PMID: 30991225
Quinidine polygalacturonate purchased from MedChemExpress. Usage Cited in: Environ Int. 2019 Jun:127:694-703. [Abstract]
CYP2D6 has contributed in the enantioselectivity of IFP and ICPO because the EF value of the KND-supplemented group follows a doseeffect relationship and the difference in the EF values was over 10% relative to the DMSO control group.
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Anal Chem
A Computational Integration Strategy Driven by Chemical Similarity Uncovers Comprehensive Metabolic Profiles of Small Bioactive Peptides via UHPLC-HRMS for Doping Control. [Abstract]2025 Nov 18;97(45):25158-25167. PMID: 41202118 -
J Med Chem
Development of an In Silico Prediction Model for P-glycoprotein Efflux Potential in Brain Capillary Endothelial Cells toward the Prediction of Brain Penetration. [Abstract]2021 Mar 11;64(5):2725-2738. PMID: 33619967 -
J Med Chem
Screening and Reverse-Engineering of Estrogen Receptor Ligands as Potent Pan-Filovirus Inhibitors. [Abstract]2020 Oct 8;63(19):11085-11099. PMID: 32886512 -
Environ Pollut
Assessing environmental and human health risks: Insight from the enantioselective metabolism and degradation of fenpropidin. [Abstract]2024 Aug 15:355:124214. PMID: 38801883 -
Pharmaceutics
Plasma Protein Binding, Biostability, Metabolite Profiling, and CYP450 Phenotype of TPB15 Across Different Species: A Novel Smoothened Inhibitor for TNBC Therapy. [Abstract]2025 Mar 26;17(4):423. PMID: 40284418 -
J Agric Food Chem
Enantioselective Metabolic Mechanism and Metabolism Pathway of Pydiflumetofen in Rat Liver Microsomes: In Vitro and In Silico Study. [Abstract]2022 Mar 2;70(8):2520-2528. PMID: 35184556 -
Cell Mol Life Sci
2025 Nov 25;82(1):419. PMID: 41288707 -
RSC Adv
Identification of key transporters mediating uptake of aconitum alkaloids into the liver and kidneys and the potential mechanism of detoxification by active ingredients of liquorice. [Abstract]2019 May 23;9(28):16136-16146. PMID: 35521419 -
Front Pharmacol
Eye Drops of Metformin Prevents Fibrosis After Glaucoma Filtration Surgery in Rats via Activating AMPK/Nrf2 Signaling Pathway. [Abstract]2020 Jul 31:11:1038. PMID: 32903813
Quinidine polygalacturonate purchased from MedChemExpress. Usage Cited in: Front Pharmacol. 2020 Jul 31:11:1038. [Abstract]
Cell cycle relative proteins/genes (CyclinD1, CDK4, P21 and P27) level were assessed in HConFs after Quinidine treatment by western blot.
Quinidine polygalacturonate purchased from MedChemExpress. Usage Cited in: Front Pharmacol. 2020 Jul 31:11:1038. [Abstract]
Cell cycle relative proteins/genes (CyclinD1, CDK4, P21 and P27) level were assessed in HConFs after Atropine/Quinidine treatment by qRT-PCR.
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Cell Calcium
MONNA alleviates MPTP-induced Parkinson's disease in zebrafish by activating TFEB dependently on ER Calcium. [Abstract]2026 Mar:134:103125. PMID: 41637953 -
Virol J
2024 Aug 8;21(1):181. PMID: 39118175 -
J Anim Sci
2022 Apr 1;100(4):skac069. PMID: 35247050 -
Andrology
Pharmacological inhibition of KSper impairs flagellar pH homeostasis of human spermatozoa. [Abstract]2025 Oct;13(7):1805-1815. PMID: 39498893 -
AAPS J
Cannabinoid Interactions with Cytochrome P450 Drug Metabolism: a Full-Spectrum Characterization. [Abstract]2021 Jun 28;23(4):91. PMID: 34181150 -
Food Chem Toxicol
The "steric-like" inhibitory effect and mechanism of doxycycline on florfenicol metabolism: Interaction risk. [Abstract]2022 Nov:169:113431. PMID: 36116547 -
Vet Microbiol
The Chinese medicine monomer Schisandrin C inhibits PRRSV infection by regulating the OGT-PI3K/AKT/mTOR signaling pathway. [Abstract]2026 May:316:110992. PMID: 41865607 -
Pharmacol Res Perspect
Effects of membrane transport activity and cell metabolism on the unbound drug concentrations in the skeletal muscle and liver of drugs: A microdialysis study in rats. [Abstract]2021 Oct;9(5):e00879. PMID: 34628723 -
Pharmacol Res Perspect
Applicability of free drug hypothesis to drugs with good membrane permeability that are not efflux transporter substrates: A microdialysis study in rats. [Abstract]2020 Apr;8(2):e00575. PMID: 32266794 -
Eur J Drug Metab Pharmacokinet
Evaluation of an Ussing Chamber System Equipped with Rat Intestinal Tissues to Predict Intestinal Absorption and Metabolism in Humans. [Abstract]2022 Sep;47(5):639-652. PMID: 35733077 -
Chemosphere
A proposed "steric-like effect" for the slowdown of enrofloxacin antibiotic metabolism by ciprofloxacin, and its mechanism. [Abstract]2021 Dec:284:131347. PMID: 34323809
Protokoll
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RNA extraction experimental
By lysing cells, releasing RNA, and removing impurities such as proteins and DNA, high-purity RNA products are finally obtained. The commonly used traditional method is the guanidine isothiocyanate/phenol/chloroform method (Trizol), which is suitable for a variety of animal materials including animal tissues, microorganisms, cultured cells, etc., and most plant materials.
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Detection of Apoptosis
Apoptosis, also called programmed cell death, is generally characterized by distinct morphological characteristics.
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TUNEL staining for apoptotic DNA fragmentation
TUNEL staining detects DNA strand breaks by using terminal deoxynucleotidyl transferase to add labeled nucleotides to exposed 3′-OH DNA termini, generating either microscopic staining in fixed cells or tissue sections, or fluorescence/cytometric signal in cell suspensions. TUNEL positivity reflects DNA fragmentation but should not be interpreted alone as definitive apoptosis, because TUNEL can also label necrotic, autolytic, mechanically damaged, or DNA-repair-associated DNA breaks.
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Annexin V plus membrane-impermeant dye apoptosis staining
Annexin V-based apoptosis assays rely on the detection of phosphatidylserine (PS) externalization from the inner leaflet of the plasma membrane to the outer leaflet, an early biochemical hallmark of apoptosis. Fluorescently labeled Annexin V binds PS in a calcium-dependent manner, enabling identification of early apoptotic cells by flow cytometry or fluorescence microscopy. When combined with a membrane-impermeant DNA-binding dye (e. g. , propidium iodide), this approach allows discrimination between viable (Annexin V−/dye−), early apoptotic (Annexin V+/dye−), and late apoptotic or necrotic (Annexin V+/dye+) cell populations by assessing membrane integrity and PS exposure.
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Apoptosis Solutions
Apoptosis is a regulated, generally non-lytic cell-death pathway that removes unwanted, damaged, infected, or abnormal cells through coordinated morphological changes, caspase activation, DNA fragmentation, and membrane remodeling. The intrinsic apoptosis pathway is controlled mainly by mitochondrial outer membrane permeabilization, BCL-2 family proteins, cytochrome c release, apoptosome formation, caspase-9 activation, and downstream executioner caspase-3/7 activation. The extrinsic apoptosis pathway is initiated by death receptors such as Fas, TNFR, and TRAIL receptors, which recruit adaptor proteins and activate caspase-8 before engaging executioner caspases or mitochondrial amplification through BID cleavage. Apoptosis is linked to many phenotypes, including cancer cell killing, tissue homeostasis, immune regulation, neurodegeneration, infection response, and treatment-induced cytotoxicity; unresolved questions include how apoptosis interacts with necroptosis, pyroptosis, ferroptos
Reinheit & Dokumentation
Verweise
[1]. Lee SY, et al. Hydrocinchonine, cinchonine, and quinidine potentiate paclitaxel-induced cytotoxicity and apoptosis via multidrug resistance reversal in MES-SA/DX5 uterine sarcoma cells. Environ Toxicol. 2011 Aug;26(4):424-31. [Content Brief]
[2]. Kehl SJ, et al. Quinidine-induced inhibition of the fast transient outward K+ current in rat melanotrophs. Br J Pharmacol. 1991;103(3):1807-1813. [Content Brief]
[3]. Moody DE, et al. Quinidine inhibits in vivo metabolism of amphetamine in rats: impact upon correlation between GC/MS and immunoassay findings in rat urine. J Anal Toxicol. 1990;14(5):311-317. [Content Brief]
[4]. Jamali H, et al. Effect of dextromethorphan/quinidine on pentylenetetrazole- induced clonic and tonic seizure thresholds in mice. Neurosci Lett. 2020;729:134988. [Content Brief]
Calculators
Konzentration (Stammlösung) × Volumen (Stammlösung) = Konzentration (Ziellösung) × Volumen (Ziellösung)
Quinidine polygalacturonate Related Classifications
HY-B1751E Related Classifications
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