1999
Maitotoxin activates a nonselective cation channel and a P2Z/P2X7-like cytolytic pore in human skin fibroblasts
Schilling W, Sinkins W, Estacion M. Maitotoxin activates a nonselective cation channel and a P2Z/P2X7-like cytolytic pore in human skin fibroblasts. American Journal Of Physiology 1999, 277: c755-c765. PMID: 10516106, DOI: 10.1152/ajpcell.1999.277.4.c755.Peer-Reviewed Original ResearchConceptsEffects of maitotoxinConcentration-dependent increaseNonselective cation channelsCation channelsHuman skin fibroblastsPlasmalemmal permeabilitySkin fibroblastsUptake of ethidiumIntracellular fura-2Cytolytic poreYO-PRO-1Permeable cation channelFura-2Receptor stimulationTypes of cellsCytosolic freeLactate dehydrogenaseMembrane currentsPotent cytolytic agentCytolytic agentsMaitotoxinCell typesPresent studyCell levelSingle-cell level
1991
Characterization of ion channels seen in subconfluent human dermal fibroblasts.
Estacion M. Characterization of ion channels seen in subconfluent human dermal fibroblasts. The Journal Of Physiology 1991, 436: 579-601. PMID: 1712040, PMCID: PMC1181523, DOI: 10.1113/jphysiol.1991.sp018568.Peer-Reviewed Original ResearchConceptsIon channelsHuman dermal fibroblastsBradykinin-stimulated cellsDermal fibroblastsDifferent ion channelsSurprising diversityIon channel modulationChannel phenotypeInward rectifierGap junctionsUnstimulated cellsUnexcitable cellsChannel modulationActivation kineticsGuanosine 5'FibroblastsCellsPhenotypePipette solutionCl- currentFast inactivationExpressionAdditional subtypesPatch-clamp techniqueLow numberAcute electrophysiological responses of bradykinin‐stimulated human fibroblasts.
Estacion M. Acute electrophysiological responses of bradykinin‐stimulated human fibroblasts. The Journal Of Physiology 1991, 436: 603-620. PMID: 1648132, PMCID: PMC1181524, DOI: 10.1113/jphysiol.1991.sp018569.Peer-Reviewed Original ResearchConceptsFura-2 fluorescencePipette solutionIon substitution experimentsGTP gamma SReversal potentialBradykinin stimulationPresence of GTPHuman dermal fibroblastsGamma SPatch-clamp techniqueNon-specific cation channelsBradykinin additionDermal fibroblastsIntracellular calciumLittle voltage dependencePatch-clamped cellsTail current analysisAcute responseInward currentsCalcium ionophoreOutward currentsNear baselineCation channelsElectrophysiological responsesBradykinin