Loss of Cav1.2 channels impairs hippocampal theta burst stimulation-induced long-term potentiation. 2020

Preethy S Sridharan, and Yuan Lu, and Richard C Rice, and Andrew A Pieper, and Anjali M Rajadhyaksha
Harrington Discovery Institute, University Hospitals Cleveland Medical Center , Cleveland, OH, USA.

CACNA1 C, which codes for the Cav1.2 isoform of L-type Ca2+ channels (LTCCs), is a prominent risk gene in neuropsychiatric and neurodegenerative conditions. A role forLTCCs, and Cav1.2 in particular, in transcription-dependent late long-term potentiation (LTP) has long been known. Here, we report that elimination of Cav1.2 channels in glutamatergic neurons also impairs theta burst stimulation (TBS)-induced LTP in the hippocampus, known to be transcription-independent and dependent on N-methyl D-aspartate receptors (NMDARs) and local protein synthesis at synapses. Our expansion of the established role of Cav1.2channels in LTP broadens understanding of synaptic plasticity and identifies a new cellular phenotype for exploring treatment strategies for cognitive dysfunction.

UI MeSH Term Description Entries
D008297 Male Males
D004594 Electrophysiology The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.
D006624 Hippocampus A curved elevation of GRAY MATTER extending the entire length of the floor of the TEMPORAL HORN of the LATERAL VENTRICLE (see also TEMPORAL LOBE). The hippocampus proper, subiculum, and DENTATE GYRUS constitute the hippocampal formation. Sometimes authors include the ENTORHINAL CORTEX in the hippocampal formation. Ammon Horn,Cornu Ammonis,Hippocampal Formation,Subiculum,Ammon's Horn,Hippocampus Proper,Ammons Horn,Formation, Hippocampal,Formations, Hippocampal,Hippocampal Formations,Hippocampus Propers,Horn, Ammon,Horn, Ammon's,Proper, Hippocampus,Propers, Hippocampus,Subiculums
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D017774 Long-Term Potentiation A persistent increase in synaptic efficacy, usually induced by appropriate activation of the same synapses. The phenomenological properties of long-term potentiation suggest that it may be a cellular mechanism of learning and memory. Long Term Potentiation,Long-Term Potentiations,Potentiation, Long-Term,Potentiations, Long-Term
D050781 Transcranial Magnetic Stimulation A technique that involves the use of electrical coils on the head to generate a brief magnetic field which reaches the CEREBRAL CORTEX. It is coupled with ELECTROMYOGRAPHY response detection to assess cortical excitability by the threshold required to induce MOTOR EVOKED POTENTIALS. This method is also used for BRAIN MAPPING, to study NEUROPHYSIOLOGY, and as a substitute for ELECTROCONVULSIVE THERAPY for treating DEPRESSION. Induction of SEIZURES limits its clinical usage. Transcranial Magnetic Stimulation, Paired Pulse,Transcranial Magnetic Stimulation, Repetitive,Transcranial Magnetic Stimulation, Single Pulse,Magnetic Stimulation, Transcranial,Magnetic Stimulations, Transcranial,Stimulation, Transcranial Magnetic,Stimulations, Transcranial Magnetic,Transcranial Magnetic Stimulations
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D020746 Calcium Channels, L-Type Long-lasting voltage-gated CALCIUM CHANNELS found in both excitable and non-excitable tissue. They are responsible for normal myocardial and vascular smooth muscle contractility. Five subunits (alpha-1, alpha-2, beta, gamma, and delta) make up the L-type channel. The alpha-1 subunit is the binding site for calcium-based antagonists. Dihydropyridine-based calcium antagonists are used as markers for these binding sites. Dihydropyridine Receptors,L-Type Calcium Channels,L-Type VDCC alpha-1 Subunit,L-Type Voltage-Dependent Calcium Channel,Long-Lasting Calcium Channel,Long-Lasting Calcium Channels,Receptors, Dihydropyridine,Dihydropyridine Receptor,L-Type Calcium Channel,L-Type VDCC,L-Type VDCC alpha-2 Subunit,L-Type VDCC beta Subunit,L-Type VDCC delta Subunit,L-Type VDCC gamma Subunit,L-Type Voltage-Dependent Calcium Channels,Calcium Channel, L-Type,Calcium Channel, Long-Lasting,Calcium Channels, L Type,Calcium Channels, Long-Lasting,Channel, Long-Lasting Calcium,L Type Calcium Channel,L Type Calcium Channels,L Type VDCC,L Type VDCC alpha 1 Subunit,L Type VDCC alpha 2 Subunit,L Type VDCC beta Subunit,L Type VDCC delta Subunit,L Type VDCC gamma Subunit,L Type Voltage Dependent Calcium Channel,L Type Voltage Dependent Calcium Channels,Long Lasting Calcium Channel,Long Lasting Calcium Channels,Receptor, Dihydropyridine,VDCC, L-Type
D066298 In Vitro Techniques Methods to study reactions or processes taking place in an artificial environment outside the living organism. In Vitro Test,In Vitro Testing,In Vitro Tests,In Vitro as Topic,In Vitro,In Vitro Technique,In Vitro Testings,Technique, In Vitro,Techniques, In Vitro,Test, In Vitro,Testing, In Vitro,Testings, In Vitro,Tests, In Vitro,Vitro Testing, In

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