2011
CaV1.2 Channel N-terminal Splice Variants Modulate Functional Surface Expression in Resistance Size Artery Smooth Muscle Cells*
Bannister J, Thomas-Gatewood C, Neeb Z, Adebiyi A, Cheng X, Jaggar J. CaV1.2 Channel N-terminal Splice Variants Modulate Functional Surface Expression in Resistance Size Artery Smooth Muscle Cells*. Journal Of Biological Chemistry 2011, 286: 15058-15066. PMID: 21357696, PMCID: PMC3083159, DOI: 10.1074/jbc.m110.182816.Peer-Reviewed Original ResearchConceptsArterial smooth muscle cellsSmooth muscle cellsMuscle cellsSurface expressionIntravascular pressureSmooth muscle-specific expressionArtery smooth muscle cellsDepolarization-induced vasoconstrictionHuman cerebral arteriesWhole-cell currentsReduced surface expressionLarge vasodilationCerebral arteryInflux pathwayVariety of stimuliCardiovascular systemFunctional surface expressionVasodilationProximal N-terminusReduced expressionMuscle-specific expressionE1CAuxiliary subunitsKnockdownPhysiological functions
2007
A Novel CaV1.2 N Terminus Expressed in Smooth Muscle Cells of Resistance Size Arteries Modifies Channel Regulation by Auxiliary Subunits*
Cheng X, Liu J, Asuncion-Chin M, Blaskova E, Bannister J, Dopico A, Jaggar J. A Novel CaV1.2 N Terminus Expressed in Smooth Muscle Cells of Resistance Size Arteries Modifies Channel Regulation by Auxiliary Subunits*. Journal Of Biological Chemistry 2007, 282: 29211-29221. PMID: 17699517, PMCID: PMC2276565, DOI: 10.1074/jbc.m610623200.Peer-Reviewed Original ResearchConceptsExon 1cN-terminusExon 1bAuxiliary subunitsRich N-terminusCysteine-rich N-terminusNovel alternative splicingResistance-size cerebral arteriesPlasma membrane insertionExon 1Arterial myocytesMultiple vascular functionsIsoform-dependent differencesWhole-cell current densityN-terminal variantsAlternative splicingMembrane insertionChannel regulationExon 1AMolecular identityHuman diseasesSubunitsTerminusEntry pathwaySmooth muscle cells
2006
Genetic Ablation of Caveolin‐1 Modifies Ca2+ Spark Coupling in Murine Arterial Smooth Muscle Cells
Cheng X, Jaggar J. Genetic Ablation of Caveolin‐1 Modifies Ca2+ Spark Coupling in Murine Arterial Smooth Muscle Cells. The FASEB Journal 2006, 20: a1173-a1174. DOI: 10.1096/fasebj.20.5.a1173-d.Peer-Reviewed Original ResearchSmooth muscle cellsKCa channelsMurine arterial smooth muscle cellsCerebral artery smooth muscle cellsL-type voltage-dependent calcium channelsGenetic ablationMuscle cellsArtery smooth muscle cellsSpark frequencyVoltage-dependent calcium channelsArterial smooth muscle cellsSmooth muscle contractilityLarge-conductance Ca2Ryanodine-sensitive Ca2Caveolin-1-deficient miceKCa currentsNOS activityDeficient miceChannel blockersMuscle contractilityCoupling of Ca2SR Ca2Calcium channelsIntracellular Ca2Alters Ca2Genetic ablation of caveolin-1 modifies Ca2+ spark coupling in murine arterial smooth muscle cells
Cheng X, Jaggar J. Genetic ablation of caveolin-1 modifies Ca2+ spark coupling in murine arterial smooth muscle cells. AJP Heart And Circulatory Physiology 2006, 290: h2309-h2319. PMID: 16428350, PMCID: PMC1698957, DOI: 10.1152/ajpheart.01226.2005.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBariumCadmiumCalcium SignalingCaveolin 1ElectrophysiologyEnzyme InhibitorsFluorescent DyesFura-2IndolesMiceMice, KnockoutMicroscopy, ConfocalMicroscopy, ElectronMuscle, Smooth, VascularMyocytes, Smooth MuscleNitroargininePatch-Clamp TechniquesRyanodine Receptor Calcium Release ChannelConceptsCerebral artery smooth muscle cellsSmooth muscle cellsArtery smooth muscle cellsMuscle cellsMurine arterial smooth muscle cellsGenetic ablationNitric oxide synthase activityVoltage-dependent calcium channelsArterial smooth muscle cellsOxide synthase activitySmooth muscle contractilityChannel blockersMuscle contractilityCalcium channelsCav-1-deficient cellsSpark regulationL-typeElevated intracellularSpark frequencyPotassium channelsSarcoplasmic reticulumCurrent activationCav-1Control cellsRelease channel
2002
Carbon Monoxide Dilates Cerebral Arterioles by Enhancing the Coupling of Ca2+ Sparks to Ca2+-Activated K+ Channels
Jaggar J, Leffler C, Cheranov S, Tcheranova D, E S, Cheng X. Carbon Monoxide Dilates Cerebral Arterioles by Enhancing the Coupling of Ca2+ Sparks to Ca2+-Activated K+ Channels. Circulation Research 2002, 91: 610-617. PMID: 12364389, DOI: 10.1161/01.res.0000036900.76780.95.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsArteriolesCalcium Channel BlockersCalcium SignalingCarbon MonoxideCells, CulturedCerebral ArteriesCulture TechniquesElectric ConductivityHemeKineticsLysineMuscle, Smooth, VascularPotassium Channels, Calcium-ActivatedRyanodineRyanodine Receptor Calcium Release ChannelSignal TransductionSwineVasodilationVasodilator AgentsConceptsCerebral arteriolesArteriole smooth muscle cellsRelease channel blockerSmooth muscle cellsLarge-conductance Ca2Ryanodine-sensitive Ca2Enzyme heme oxygenasePial arteriolesCerebral circulationChannel blockersCoupling of Ca2Cellular signaling mechanismsPotent effectsArteriolesMuscle cellsHeme oxygenaseVasodilatorsPotent activatorControl conditionDilationPresent studySignaling mechanismCa2Source of controversyPercentage of Ca2