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Vesicle mobility studied in cultured astrocytesPotokar, Maja, 1973- ...Astrocytes release many neuroactive substances, which are stored in membrane bound vesicles and may play a role in synapse modulation and in the coupling between neuronal activity and the local blood ... flow. However, the mobility of these vesicles in astrocytes has not been studied yet. We here used a fluorescently tagged proatrial natriuretic peptide to label single vesicles and dynamic microscopy to monitor their mobility. To track and analyze labeledvesicles, we employed a computer software. We found two modes of vesicle mobility, directional and non-directional. The mobility of non-directional vesicles is likely determined mainly by free diffusion. Only directional vesicles displayed a straight-line motion. The relationship of mean square displacement with time in directional vesicles resembled a quadratic function, indicating that in addition to free diffusion other mechanisms may contribute to vesicle movements in astrocytes, the biophysical properties of which are similar to those of neurons.Vir: Biochemical and biophysical research communications. - ISSN 0006-291X (Letn. 329, 2005, str. 678-683)Vrsta gradiva - članek, sestavni delLeto - 2005Jezik - angleškiCOBISS.SI-ID - 19156697
Avtor
Potokar, Maja, 1973- |
Kreft, Marko |
Pangršič, Tina |
Zorec, Robert, 1958-
Teme
Astrocytes |
Drug Effects |
Atrial Natriuretic Factor |
Transfection |
Recombinant Fusion Proteins |
Exocytosis |
Rats |
Cells, Cultured |
Microscopy, Confocal |
Astrociti |
Eksocitoza |
Preddvorni, natriuretični faktor |
Rekombinantne, fuzijske beljakovine |
Transfekcija |
Celične kulture |
Mikroskopija konfokalna |
Podgane
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Potokar, Maja, 1973- | 21390 |
Kreft, Marko | 15666 |
Pangršič, Tina | 23346 |
Zorec, Robert, 1958- | 03702 |
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