2020
Lamellar cells in Pacinian and Meissner corpuscles are touch sensors
Nikolaev YA, Feketa VV, Anderson EO, Schneider ER, Gracheva EO, Bagriantsev SN. Lamellar cells in Pacinian and Meissner corpuscles are touch sensors. Science Advances 2020, 6: eabe6393. PMID: 33328243, PMCID: PMC7744075, DOI: 10.1126/sciadv.abe6393.Peer-Reviewed Original ResearchLamellar cellsR-type voltage-gated calcium channelsMeissner corpusclesAction potentialsChannel-dependent action potentialsPacinian corpusclesVoltage-gated calcium channelsSensory afferent neuronsNon-neuronal cellsBill skinAfferent neuronsNeuronal afferentsCalcium channelsElectrophysiological recordingsTactile stimuliCorpusclesIon channelsCellsSkinFirst evidenceTactile organsAfferentsNeurons
2019
A Cross-Species Analysis Reveals a General Role for Piezo2 in Mechanosensory Specialization of Trigeminal Ganglia from Tactile Specialist Birds
Schneider ER, Anderson EO, Feketa VV, Mastrotto M, Nikolaev YA, Gracheva EO, Bagriantsev SN. A Cross-Species Analysis Reveals a General Role for Piezo2 in Mechanosensory Specialization of Trigeminal Ganglia from Tactile Specialist Birds. Cell Reports 2019, 26: 1979-1987.e3. PMID: 30784581, PMCID: PMC6420409, DOI: 10.1016/j.celrep.2019.01.100.Peer-Reviewed Original ResearchConceptsTrigeminal ganglionPiezo2 ion channelsExpression of moleculesExpression of factorsPiezo2 expressionSomatosensory neuronsNeuronal subtypesSomatosensory systemSuch neuronsSpecialist birdsBird speciesMolecular variationFamily AnatidaeForaging behaviorTactile specializationNeuronsMechanoreceptorsSpecies analysisGangliaGeneral roleBehavioral phenotypesIon channelsGeneral mechanismTactile specialistsFunction of mechanoreceptors
2016
Biophysical Factors that Promote Mechanically-Induced Action Potentials in Neocortical and Hippocampal Pyramidal Neurons
Nikolaev Y, Dosen P, Laver D, Van Helden D, Hamill O. Biophysical Factors that Promote Mechanically-Induced Action Potentials in Neocortical and Hippocampal Pyramidal Neurons. Biophysical Journal 2016, 110: 349a. DOI: 10.1016/j.bpj.2015.11.1877.Peer-Reviewed Original Research
2015
Single mechanically-gated cation channel currents can trigger action potentials in neocortical and hippocampal pyramidal neurons
Nikolaev Y, Dosen P, Laver D, van Helden D, Hamill O. Single mechanically-gated cation channel currents can trigger action potentials in neocortical and hippocampal pyramidal neurons. Brain Research 2015, 1608: 1-13. PMID: 25765154, DOI: 10.1016/j.brainres.2015.02.051.Peer-Reviewed Original ResearchConceptsHippocampal pyramidal neuronsPyramidal neuronsChannel currentsSpike activityAction potentialsRhythmic spike activityCell-attached patch recordingsTraumatic brain injuryCerebellar Purkinje neuronsMouse brain slicesCation channel currentsCentral neuronsBrain injuryLocus coeruleusBrain slicesSynaptic inputsVoltage-gated channelsPurkinje neuronsPatch recordingsInward currentsMammalian brainNeuron typesNeuronsMechanosensitive organCation channels