2025
Exploring Calcium Channels as Potential Therapeutic Targets in Blast Traumatic Brain Injury
Wachtler N, O’Brien R, Ehrlich B, McGuone D. Exploring Calcium Channels as Potential Therapeutic Targets in Blast Traumatic Brain Injury. Pharmaceuticals 2025, 18: 223. PMID: 40006037, PMCID: PMC11859800, DOI: 10.3390/ph18020223.Peer-Reviewed Original ResearchCalcium signalingCalcium channelsTherapeutic strategiesCalcium homeostasisFunction of calcium channelsDysregulated calcium signalingModulation of injuryTraumatic brain injuryBrain injuryLoss of calcium homeostasisBlast-related traumatic brain injuryDevelopment of neuroprotective interventionsIntracellular calcium dynamicsPlasma membrane stabilityExtracellular calciumBlast traumatic brain injuryPreclinical modelsTherapeutic outcomesNeuroprotective interventionsMembrane abnormalitiesPharmacological inhibitorsNeuronal somataExclusion criteriaCalcium dynamicsSecondary injury
2018
Modulations in extracellular calcium lead to H+-ATPase-dependent acid secretion: a clarification of PPI failure
Kitay AM, Schneebacher MT, Schmitt A, Heschl K, Kopic S, Alfadda T, Alsaihati A, Link A, Geibel J. Modulations in extracellular calcium lead to H+-ATPase-dependent acid secretion: a clarification of PPI failure. AJP Gastrointestinal And Liver Physiology 2018, 315: g36-g42. PMID: 29517927, DOI: 10.1152/ajpgi.00132.2017.Peer-Reviewed Original ResearchConceptsAcid secretionParietal cellsExtracellular calciumGastric parietal cellsProton pump inhibitor exposureExtracellular CaPotassium-free conditionsRecurrent reflux symptomsCalcium sensing receptorGastric acid secretionPPI failurePPI therapyReflux symptomsIsolated gastric glandsInhibitor exposureCalcimimetic R568Pharmacological targetsSensing receptorAbsence of sodiumCalcium concentrationCaSRGastric glandsSecretionATPase activityExcretion pathway
2017
Plasticity of calcium-permeable AMPA glutamate receptors in Pro-opiomelanocortin neurons
Suyama S, Ralevski A, Liu ZW, Dietrich MO, Yada T, Simonds SE, Cowley MA, Gao XB, Diano S, Horvath TL. Plasticity of calcium-permeable AMPA glutamate receptors in Pro-opiomelanocortin neurons. ELife 2017, 6: e25755. PMID: 28762946, PMCID: PMC5538821, DOI: 10.7554/elife.25755.Peer-Reviewed Original ResearchConceptsExcitatory postsynaptic currentsPOMC neuronsCP-AMPARsFasted stateAMPAR-mediated excitatory postsynaptic currentsCalcium-permeable AMPA glutamate receptorsInhibition of EPSCsHigh-fat diet exposurePOMC neuronal activityPro-opiomelanocortin (POMC) neuronsCalcium-permeable AMPARsElevated leptin levelsAMPA glutamate receptorsAmplitude of mEPSCsFood deprivationEntry of calciumAMPA receptor complexesDiet exposureLeptin levelsPostsynaptic currentsEPSC amplitudeGlutamate receptorsNeuronal activityExtracellular calciumLinear current-voltage relationship
2010
CaSR Mediated Gastric Acid Secretion via the Vacuolar H+-ATPase - With Special Emphasis on the Effect of Extracellular Calcium and Changes in Systemic pH
Schmitt A, Bloecker K, Geibel J. CaSR Mediated Gastric Acid Secretion via the Vacuolar H+-ATPase - With Special Emphasis on the Effect of Extracellular Calcium and Changes in Systemic pH. The American Journal Of Gastroenterology 2010, 105: s41. DOI: 10.14309/00000434-201010001-00109.Peer-Reviewed Original Research
2009
The calcium-sensing receptor couples to Gαs and regulates PTHrP and ACTH secretion in pituitary cells
Mamillapalli R, Wysolmerski J. The calcium-sensing receptor couples to Gαs and regulates PTHrP and ACTH secretion in pituitary cells. Journal Of Endocrinology 2009, 204: 287-297. PMID: 20032198, PMCID: PMC3777408, DOI: 10.1677/joe-09-0183.Peer-Reviewed Original ResearchConceptsG protein-coupled receptorsACTH secretionCAMP productionProtein-coupled receptorsDifferent G proteinsCaR couplesAtT-20 cellsHormone secretionExtracellular calciumSystemic calcium homeostasisBiological functionsG proteinsBreast cancer cellsCell typesCalcium-sensing receptorCell growthReceptors coupleMalignant breast cellsCancer cellsKidney cellsBreast cellsCAR activationPituitary corticotrophsCalcium homeostasisAnterior pituitary
2008
Effect of lidocaine on endothelin-1-mediated airway smooth muscle contraction in the rat trachea.
Akhtar S, Podgoreanu M, Harrison B, Brull S. Effect of lidocaine on endothelin-1-mediated airway smooth muscle contraction in the rat trachea. Minerva Anestesiologica 2008, 74: 643-50. PMID: 18971893.Peer-Reviewed Original ResearchConceptsEffects of lidocaineEndothelin-1Extracellular calciumRat tracheaAirway smooth muscle constrictionET-1-induced constrictionET-1-induced contractionAirway smooth muscle contractionCarbachol concentration-response curveDirect relaxant effectIntracellular calcium entryET-1 responseSmooth muscle constrictionNM ET-1Concentration-response curvesG-protein-coupled endothelin receptorsSmooth muscle contractionUnpaired t-testASM contractionContractile responseMaximal contractilityRelaxant effectASM relaxationEndothelin receptorsMuscle constriction
2007
Characterization of the Intracellular Proteolytic Cleavage of Myocilin and Identification of Calpain II as a Myocilin-processing Protease*
Sánchez-Sánchez F, Martínez-Redondo F, Aroca-Aguilar JD, Coca-Prados M, Escribano J. Characterization of the Intracellular Proteolytic Cleavage of Myocilin and Identification of Calpain II as a Myocilin-processing Protease*. Journal Of Biological Chemistry 2007, 282: 27810-27824. PMID: 17650508, DOI: 10.1074/jbc.m609608200.Peer-Reviewed Original ResearchConceptsExtracellular calciumCalpain IICalcium-activated proteaseIntraocular pressureT cellsIntracellular proteolytic cleavageCalpain inhibitorsCalcium uptakeProteolytic cleavageCalpain inhibitor IVOlfactomedin-like domainCalpain IInhibitor IVMyocilinEndoplasmic reticulumIntracellular processingLumenRNA interference knockdownCalciumProteolytic processingCellsCulture mediumGlaucomaSubcellular fractionationEndoproteolytic processing
2005
Stretch‐Induced PTH‐Related Protein Gene Expression in Osteoblasts*
Chen X, Macica CM, Ng KW, Broadus AE. Stretch‐Induced PTH‐Related Protein Gene Expression in Osteoblasts*. Journal Of Bone And Mineral Research 2005, 20: 1454-1461. PMID: 16007342, DOI: 10.1359/jbmr.2005.20.8.1454.Peer-Reviewed Original ResearchConceptsAnabolic effectsStretch-activated potassium channelsCandidate mediatorsCyclical stretchPotassium channelsL-type calcium channelsN-terminal PTHPTHrP mRNA expressionStretch-activated cation channelsSmooth muscle cellsOsteoblast-like cellsUMR 201PTHrP gene expressionHypotonic solutionEndogenous mediatorsPTHrP mRNAIntracellular acidosisExtracellular calciumCalcium channelsFlexercell apparatusPTHrPRNase protection assaysMRNA expressionMuscle cellsSkeletal mass
2004
Functional and Molecular Characterization of a Volume-activated Chloride Channel in Rabbit Corneal Epithelial Cells
Al-Nakkash L, Iserovich P, Coca-Prados M, Yang H, Reinach P. Functional and Molecular Characterization of a Volume-activated Chloride Channel in Rabbit Corneal Epithelial Cells. The Journal Of Membrane Biology 2004, 201: 41-49. PMID: 15635811, DOI: 10.1007/s00232-004-0706-5.Peer-Reviewed Original ResearchConceptsCorneal epithelial cellsRabbit corneal epithelial cellsVolume-regulated anion channelsEpithelial cellsVoltage-dependent inhibitionHypotonic challengeVolume-activated chloride channelsRegulatory volume decrease (RVD) responseInactive phorbol ester analoguePresence of DIDSExtracellular calciumChloride currentsNiflumic acidRVD responseCell swellingDecrease responseNorthern blot analysisBlot analysisPhorbol dibutyratePhorbol ester analogsChloride channelsVACCNPPBMOsm mediumSV40-immortalized rabbit corneal epithelial cellsThe calcium-sensing receptor regulates mammary gland parathyroid hormone–related protein production and calcium transport
VanHouten J, Dann P, McGeoch G, Brown EM, Krapcho K, Neville M, Wysolmerski JJ. The calcium-sensing receptor regulates mammary gland parathyroid hormone–related protein production and calcium transport. Journal Of Clinical Investigation 2004, 113: 598-608. PMID: 14966569, PMCID: PMC338258, DOI: 10.1172/jci18776.Peer-Reviewed Original ResearchConceptsParathyroid hormone-related protein productionCalcium-sensing receptorMammary epithelial cellsEpithelial cellsCalcium transportMilk calcium contentExtracellular calcium concentrationSecretion of calciumTranscellular calcium transportPTHrP secretionPTHrP productionExtracellular calciumTransfer of calciumCalcium contentMammary glandCalcium concentrationProtein concentrationAvailability of calciumHomeostatic systemConcentration of calciumMilk osmolalitySecretionCalciumReceptorsThree-dimensional culture system
2002
Expression of calcium-sensing receptor in rat colonic epithelium: evidence for modulation of fluid secretion
Cheng SX, Okuda M, Hall AE, Geibel JP, Hebert SC. Expression of calcium-sensing receptor in rat colonic epithelium: evidence for modulation of fluid secretion. AJP Gastrointestinal And Liver Physiology 2002, 283: g240-g250. PMID: 12065312, DOI: 10.1152/ajpgi.00500.2001.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBiological TransportBody FluidsCalciumCell LineCell MembraneColonHumansIn Vitro TechniquesIntestinal MucosaIntracellular MembranesMalePhosphatidylinositol Diacylglycerol-LyaseRatsRats, Sprague-DawleyReceptors, Calcium-SensingReceptors, Cell SurfaceTranscription, GeneticType C PhospholipasesConceptsCalcium-sensing receptorCrypt cellsFluid secretionNet fluid secretionIntestinal fluid transportRat colonic epitheliumCaSR agonistsIntracellular calciumExtracellular calciumColonic epitheliumDiarrheal diseaseCaSR transcriptsBath perfusateStimulatory effectBody cellsSecretionReceptorsCryptsElevated cAMPBasolateral surfaceCellsDivalent mineralsCalciumCaSRAgonists
2001
Calcium Responses to Thyrotropin-Releasing Hormone, Gonadotropin-Releasing Hormone and Somatostatin in Phospholipase Cβ3 Knockout Mice
Romoser V, Graves T, Wu D, Jiang H, Hinkle P. Calcium Responses to Thyrotropin-Releasing Hormone, Gonadotropin-Releasing Hormone and Somatostatin in Phospholipase Cβ3 Knockout Mice. Endocrinology 2001, 15: 125-135. PMID: 11145744, DOI: 10.1210/mend.15.1.0588.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAortaBlotting, WesternCalciumCells, CulturedFemaleFluorescent Antibody TechniqueGonadotropin-Releasing HormoneIsoenzymesMaleMiceMice, KnockoutMicroscopy, FluorescenceMuscle, Smooth, VascularPituitary GlandSignal TransductionSomatostatinThyrotropin-Releasing HormoneType C PhospholipasesConceptsWild-type miceKnockout micePituitary cellsSmooth muscle cellsCalcium responseIntracellular calciumMuscle cellsAortic smooth muscle cellsThyrotropin-Releasing HormoneCalcium-mobilizing actionGonadotropin-Releasing HormoneInhibited influxMicroM TRHExtracellular calciumSomatostatinPituitary tissueKnockout animalsMiceHormoneSignal pathwayPLCbeta1Phospholipase CbetaPLCbeta3CalciumGalphaq/11
1996
Calcium is permeable through a maitotoxin-activated nonselective cation channel in mouse L cells
Estacion M, Nguyen H, Gargus J. Calcium is permeable through a maitotoxin-activated nonselective cation channel in mouse L cells. American Journal Of Physiology 1996, 270: c1145-c1152. PMID: 8928742, DOI: 10.1152/ajpcell.1996.270.4.c1145.Peer-Reviewed Original ResearchConceptsNonselective cation channelsCation channelsCalcium-activated potassium channelsPlatelet-derived growth factorIntracellular calciumGrowth factor responseExtracellular calciumSecondary activationPotassium channelsGrowth factorFactor responseL cellsCell typesCalciumMouse L cellsL-cell fibroblastsMouse L-cell fibroblastsCell fibroblastsCellsIrreversible opening
1995
CD4 and CD45 regulate qualitatively distinct patterns of calcium mobilization in individual CD4+ T cells
Leitenberg D, Constant S, Lu D, Smith B, Bottomly K. CD4 and CD45 regulate qualitatively distinct patterns of calcium mobilization in individual CD4+ T cells. European Journal Of Immunology 1995, 25: 2445-2451. PMID: 7589109, DOI: 10.1002/eji.1830250906.Peer-Reviewed Original ResearchConceptsIntracellular calcium concentrationCalcium mobilizationSustained increaseT cellsCell activationCalcium concentrationCross-linking CD4Antigen-presenting cellsIntracellular calcium mobilizationT cell interactionsT cell activationT cell receptor complexT cell receptor signalingDistinct patternsCell receptor signalingIndividual CD4Cell receptor complexCD4Extracellular calciumCD3Specific antigenCross-linking antibodiesCalcium spikesCalcium fluxReceptor signaling
1993
Endothelin increases [Ca2+]i in M-1 mouse cortical collecting duct cells by a dual mechanism
Korbmacher C, Boulpaep E, Giebisch G, Geibel J. Endothelin increases [Ca2+]i in M-1 mouse cortical collecting duct cells by a dual mechanism. American Journal Of Physiology 1993, 265: c349-c357. PMID: 8368264, DOI: 10.1152/ajpcell.1993.265.2.c349.Peer-Reviewed Original ResearchConceptsEndothelin-1Intracellular storesDuct cellsNifedipine-sensitive Ca2Intracellular calcium concentrationParticipation of Ca2Endothelin increaseFura-2Extracellular calciumExtracellular Ca2Arginine vasopressinIntracellular Ca2Calcium concentrationInitial Ca2Fluorescent imaging systemInitial exposurePlateau phaseMiceEntry mechanismDual mechanismCa2Second Ca2CellsNifedipineVasopressinCompetence induction by PDGF requires sustained calcium influx by a mechanism distinct from storage-dependent calcium influx
Estacion M, Mordan L. Competence induction by PDGF requires sustained calcium influx by a mechanism distinct from storage-dependent calcium influx. Cell Calcium 1993, 14: 439-454. PMID: 8395338, DOI: 10.1016/0143-4160(93)90003-o.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBucladesineCalciumCalcium ChannelsCell CompartmentationCell DivisionCell LineCell MembraneColforsinContact InhibitionDNA ReplicationDrug SynergismExtracellular SpaceFibroblastsGallic AcidInsulinIon Channel GatingLanthanumMiceMice, Inbred C3HNifedipinePlatelet-Derived Growth FactorS PhaseSignal TransductionTetradecanoylphorbol AcetateConceptsCalcium influxIntracellular storage sitesExtracellular calciumCalcium influx pathwaySustained calcium influxIntracellular calcium concentrationExtracellular calcium influxRelease of calciumPercentage of cellsC3H 10T1/2 mouse fibroblastsPDGF exposureSustained elevationTMB-8Influx pathwayBiphasic increaseSustained increaseDibutyryl cGMPCalcium concentrationS phasePDGFDibutyryl cAMPCell replicationSelective inhibitionReplicative competenceProgressionProtection of the axonal cytoskeleton in anoxic optic nerve by decreased extracellular calcium
Waxman S, Black J, Ransom B, Stys P. Protection of the axonal cytoskeleton in anoxic optic nerve by decreased extracellular calcium. Brain Research 1993, 614: 137-145. PMID: 8348309, DOI: 10.1016/0006-8993(93)91027-p.Peer-Reviewed Original ResearchConceptsArtificial cerebrospinal fluidMin of anoxiaOptic nerveZero-Ca2White matterAnoxic injuryCNS white matter tractAxonal cytoskeletonOptic nerve axonsCNS white matterRat optic nerveInflux of Ca2White matter tractsLoss of cristaeDisorganization of cristaeMembranous profilesUltrastructure of axonsAbnormal influxCerebrospinal fluidExtracellular calciumNerveMyelinated axonsNerve axonsNormal Ca2AxonsIntegrin beta 1- and beta 3-mediated endothelial cell migration is triggered through distinct signaling mechanisms.
Leavesley D, Schwartz M, Rosenfeld M, Cheresh D. Integrin beta 1- and beta 3-mediated endothelial cell migration is triggered through distinct signaling mechanisms. Journal Of Cell Biology 1993, 121: 163-170. PMID: 7681432, PMCID: PMC2119781, DOI: 10.1083/jcb.121.1.163.Peer-Reviewed Original ResearchConceptsExtracellular calciumBeta 3Extracellular calcium sourcesAlpha v beta 3Alpha 2 beta 1Absence of cytokinesNa/H antiporterBeta 1 mAbIntracellular calciumCalcium influxIntegrin alpha 2 beta 1Specific influxBeta 1Distinct signaling mechanismsEndothelial cell migrationGrowth factorMeasurable riseDistinct intracellularRespective integrinsH antiporterCellular migrationCell migrationCell contactCalciumMAbsSpreading of human endothelial cells on fibronectin or vitronectin triggers elevation of intracellular free calcium.
Schwartz M. Spreading of human endothelial cells on fibronectin or vitronectin triggers elevation of intracellular free calcium. Journal Of Cell Biology 1993, 120: 1003-1010. PMID: 7679387, PMCID: PMC2200079, DOI: 10.1083/jcb.120.4.1003.Peer-Reviewed Original ResearchConceptsCalcium channelsBasal levelsVoltage-independent calcium channelsEndothelial cellsVoltage-dependent calcium channelsIntracellular free calciumElevation of pHiNa-Ca exchangerHuman endothelial cellsBeta 1 integrinIntracellular calciumFura-2Extracellular calciumFree calciumSubunit antibodiesSame antibodyIntracellular pHSteady-state levelsAntibodiesElevationCalciumCellsHigh steady-state levelsInvolvementIntegrinsExpression of voltage-gated calcium channels correlates with PDGF-stimulated calcium influx and depends upon cell density in C3H 10T12 mouse fibroblasts
Estacion M, Mordan L. Expression of voltage-gated calcium channels correlates with PDGF-stimulated calcium influx and depends upon cell density in C3H 10T12 mouse fibroblasts. Cell Calcium 1993, 14: 161-171. PMID: 8384532, DOI: 10.1016/0143-4160(93)90085-k.Peer-Reviewed Original ResearchConceptsVoltage-gated calcium channelsCalcium channelsT-type voltage-gated calcium channelsWhole-cell patch-clamp recordingsWhole-cell patch-clamp techniqueCell patch-clamp techniquePatch-clamp recordingsPatch-clamp techniqueMembrane calcium channelsIntracellular calcium signalsPlasma membrane calcium channelsC3H 10T1/2 mouse fibroblastsCalcium currentCalcium influxFura-2Extracellular calciumCalcium poolSustained influxGrowth factorInflux componentFraction of cellsCalcium signalsCell densityMouse fibroblastsConfluent monolayers
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