Abstract：
:Though, it is quite well-known how retinoic acid (RA) is able to induce neuritogenesis in different in vitro models, the putative role exerted by reactive oxygen species (ROS) during this process still need to be further studied. For such purpose, we used a neuronal-like cell line (SH-SY5Y cells) in order to investigate whether the antioxidant Trolox (a hydrophilic analog of alpha-tocopherol) could have any effect on the number of RA-induced neurites, and how significant changes in cellular redox homeostasis may affect the cellular endogenous expression of tyrosine hydroxylase (TH). Our results show a significant enhancement of RA (10 μM)-induced neuritogenesis and TH endogenous expression, when cells were co-treated with Trolox (100 μM) for 7 days. Moreover, this effect was associated with an improvement in cellular viability. The mechanism seems to mainly involve PI3 K/Akt rather than MEK signaling pathway. Therefore, our data demonstrate that concomitant decreases in basal reactive oxygen species (ROS) production could exert a positive effect on the neuritogenic process of RA-treated SH-SY5Y cells.
journal_name
Mol Cell Biochemjournal_title
Molecular and cellular biochemistryauthors
da Frota Junior ML,Pires AS,Zeidán-Chuliá F,Bristot IJ,Lopes FM,de Bittencourt Pasquali MA,Zanotto-Filho A,Behr GA,Klamt F,Gelain DP,Moreira JCdoi
10.1007/s11010-011-0983-2subject
Has Abstractpub_date
2011-12-01 00:00:00pages
325-34issue
1-2eissn
0300-8177issn
1573-4919journal_volume
358pub_type
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