Abstract:
:Cannabidiol (CBD), one of the most abundant Cannabis sativa-derived compounds, has been implicated with neuroprotective effect in several human pathologies. Until now, no undesired side effects have been associated with CBD. In this study, we evaluated CBD's neuroprotective effect in terminal differentiation (mature) and during neuronal differentiation (neuronal developmental toxicity model) of the human neuroblastoma SH-SY5Y cell line. A dose-response curve was performed to establish a sublethal dose of CBD with antioxidant activity (2.5 μM). In terminally differentiated SH-SY5Y cells, incubation with 2.5 μM CBD was unable to protect cells against the neurotoxic effect of glycolaldehyde, methylglyoxal, 6-hydroxydopamine, and hydrogen peroxide (H2O2). Moreover, no difference in antioxidant potential and neurite density was observed. When SH-SY5Y cells undergoing neuronal differentiation were exposed to CBD, no differences in antioxidant potential and neurite density were observed. However, CBD potentiated the neurotoxicity induced by all redox-active drugs tested. Our data indicate that 2.5 μM of CBD, the higher dose tolerated by differentiated SH-SY5Y neuronal cells, does not provide neuroprotection for terminally differentiated cells and shows, for the first time, that exposure of CBD during neuronal differentiation could sensitize immature cells to future challenges with neurotoxins.
journal_name
Mol Neurobioljournal_title
Molecular neurobiologyauthors
Schönhofen P,de Medeiros LM,Bristot IJ,Lopes FM,De Bastiani MA,Kapczinski F,Crippa JA,Castro MA,Parsons RB,Klamt Fdoi
10.1007/s12035-014-8843-1subject
Has Abstractpub_date
2015-08-01 00:00:00pages
26-37issue
1eissn
0893-7648issn
1559-1182pii
10.1007/s12035-014-8843-1journal_volume
52pub_type
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