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- W2040327447 abstract "The attachment of immortalized hypothalamic murine neurons onto the surface of an acoustic wave device yields both positive series resonant frequency (fs) and motional resistance (Rm) shifts as opposed to commonly reported negative fs and positive Rm shifts observed for other cell types. These unique shifts have been confirmed by a variety of experiments in order to verify the source and the validity of the signals. These studies involved monitoring responses to solution flow, the absence of serum proteins, the effect of reducing specific cell -surface interactions and the disruption of the neuronal cytoskeleton components. For the adhesion and deposition of neurons, fs and Rm shifts are positively correlated to the amount of adhered neurons on the sensor surface, whereas non-adhered neurons do not produce any significant change in the monitored parameters. In the absence of serum proteins, initial cell adhesion is followed by subsequent cell death and removal from the sensor surface. The presence of the peptide, GRGDS is observed to significantly reduce cell-surface specific interactions compared to the control of SDGRG and this produces fs and Rm responses that are opposite in direction to that observable for cell adhesion. Cytoskeletal studies, using the drugs nocodazole (10μM), colchicine (1μM), cytochalasin B (10μM) and cytochalasin D (2μM) all elicit neuronal responses that are validated by phalloidin actin-filament staining. These results indicate that the responses are associated with a wide range of cellular changes that can be monitored and studied using the acoustic wave method in real time, under optimal physiological conditions." @default.
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- W2040327447 date "2011-01-01" @default.
- W2040327447 modified "2023-09-27" @default.
- W2040327447 title "Interfacial behavior of immortalized hypothalamic mouse neurons detected by acoustic wave propagation" @default.
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- W2040327447 doi "https://doi.org/10.1039/c1an15534b" @default.
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