6533b857fe1ef96bd12b3b68

RESEARCH PRODUCT

Alkamides from Echinacea angustifolia Interact with P-Glycoprotein of Primary Brain Capillary Endothelial Cells Isolated from Porcine Brain Blood Vessels

Anne MahringerRudolf BauerGert FrickerThomas EfferthKarin Ardjomand-woelkart

subject

ATP Binding Cassette Transporter Subfamily BPolyunsaturated AlkamidesSwinePharmaceutical ScienceATP-binding cassette transporterCapillary endothelial cellsPharmacologyBlood–brain barrierEchinaceaAnalytical Chemistrychemistry.chemical_compoundDrug DiscoverymedicineAnimalsCells CulturedP-glycoproteinPharmacologyDose-Response Relationship DrugMolecular StructurebiologyEchinacea angustifoliaOrganic ChemistryBrainEndothelial CellsBiological TransportFlow CytometryFluoresceinsbiology.organism_classificationCalceinmedicine.anatomical_structureComplementary and alternative medicinechemistryBlood-Brain BarrierBlood circulationbiology.proteinMolecular MedicinePorcine brain

description

The blood-brain barrier prevents the passage of toxic compounds from blood circulation into brain tissue. Unfortunately, drugs for the treatment of neurodegenerative diseases, brain tumors, and other diseases also do not cross the blood-brain barrier. In the present investigation, we used isolated porcine brain capillary endothelial cells and a flow cytometric calcein-AM assay to analyze inhibition of P-glycoprotein, a major constituent of the blood-brain barrier. We tested 8 alkamides isolated from Echinacea angustifolia and found that four of them inhibited P-glycoprotein-mediated calcein transport in porcine brain capillary endothelial cells.

https://doi.org/10.1055/s-0032-1328090