Synaptic organization in cochlear inner hair cells deficient for the CaV1.3 (α1D) subunit of L-type Ca2+ channels

In summary, these data indicate that the CaV1.3 channels are crucially involved in regulation of the expression of BK and SK channels. CaV1.3 channels seem not to be essential for ribbon synapse formation, but are required for the maintenance of ribbon synapses and spiral ganglion neurons.