Abstract
Although first mentions about calcium disturbances in psychiatric diseases appeared more than 30 years ago, the most recent genomic and proteomic findings confirmed a significant role of Ca2+ and Ca2+-regulated pathways in development of neuropathological processes, including bipolar disorder and schizophrenia. Moreover, last decades have shown that due to multifactorial nature of both diseases, impairment in neuronal calcium homeostasis may depend not only on disturbed Ca2+ entry system, but also on altered extrusion system. A pivotal role in Ca2+ clearance mechanism is played by plasma membrane Ca2+-ATPase (PMCA), the enzyme responsible for returning the elevated levels of cytosolic Ca2+ back to the resting state. In this paper we summarize the current knowledge about the role of PMCA in bipolar disorder and schizophrenia pathologies, as well as the contribution of several proteins that by interaction with PMCA modify signal transduction mechanisms.
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