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Astrocyte specific remodeling of plasmalemmal cholesterol composition by ketamine indicates a new mechanism of antidepressant action [Elektronski vir]Lasič, Eva ...Ketamine is an antidepressant with rapid therapeutic onset and long-lasting effect, although the underlying mechanism(s) remain unknown. Using FRET-based nanosensors we found that ketamine increases ... [cAMP]i in astrocytes. Membrane capacitance recordings, however, reveal fundamentally distinct mechanisms of effects of ketamine and [cAMP]i on vesicular secretion: a rise in [cAMP]i facilitated, whereas ketamine inhibited exocytosis. By directly monitoring cholesterol-rich membrane domains with a fluorescently tagged cholesterol-specific membrane binding domain (D4) of toxin perfringolysin O, we demonstrated that ketamine induced cholesterol redistribution in the plasmalemma in astrocytes, but neither in fibroblasts nor in PC 12 cells. This novel mechanism posits that ketamine affects density and distribution of cholesterol in the astrocytic plasmalemma, consequently modulating a host of processes that may contribute to ketamine's rapid antidepressant action.Source: Scientific reports [Elektronski vir]. - ISSN 2045-2322 (Vol. 9, July 2019, str. 1-12)Type of material - e-article ; adult, seriousPublish date - 2019Language - englishCOBISS.SI-ID - 34434009
Author
Lasič, Eva |
Lisjak, Marjeta, 1989- |
Horvat, Anemari |
Božić, Mićo |
Šakanović, Aleksandra |
Anderluh, Gregor, 1969- |
Verkhratsky, Alexei |
Vardjan, Nina |
Jorgačevski, Jernej |
Stenovec, Matjaž |
Zorec, Robert, 1958-
Topics
astrocytes |
ketamine |
cholesterol |
astrociti |
ketamin |
holesterol
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DRS, in which the journal is indexed
Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Lasič, Eva | 37492 |
Lisjak, Marjeta, 1989- | 38243 |
Horvat, Anemari | 36369 |
Božić, Mićo | 39123 |
Šakanović, Aleksandra | 38479 |
Anderluh, Gregor, 1969- | 15686 |
Verkhratsky, Alexei | 37641 |
Vardjan, Nina | 20214 |
Jorgačevski, Jernej | 27585 |
Stenovec, Matjaž | 15467 |
Zorec, Robert, 1958- | 03702 |
Source: Personal bibliographies
and: SICRIS
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