AUTHOR=Amadio Marialaura , Scapagnini Giovanni , Davinelli Sergio , Calabrese Vittorio , Govoni Stefano , Pascale Alessia TITLE=Involvement of ELAV RNA-binding proteins in the post-transcriptional regulation of HO-1 JOURNAL=Frontiers in Cellular Neuroscience VOLUME=8 YEAR=2015 URL=https://www.frontiersin.org/journals/cellular-neuroscience/articles/10.3389/fncel.2014.00459 DOI=10.3389/fncel.2014.00459 ISSN=1662-5102 ABSTRACT=

Heme oxygenase-1 (HO-1) is an inducible rate-controlling enzyme of heme catabolism. The cytoprotective function of HO-1 activity has been verified in multiple studies, and together with its by-products is considered a key component of the cellular stress response. The transcriptional induction of HO-1 has been largely studied in response to multiple forms of stressful stimuli but our understanding of HO-1 post-transcriptional control mechanisms in neuronal cells is currently lacking. In the present report we show the involvement of the RNA-binding proteins (RBPs) embryonic lethal abnormal vision (ELAV) in the regulation of HO-1 gene expression. Our study demonstrates a specific binding between HO-1 messenger RNA (mRNA) and ELAV proteins, accompanied by an increased expression of HO-1 at protein level, in a human neuroblastoma cell line treated with hemin. Clarifying the induction of HO-1 expression at post-transcriptional level may open therapeutic perspectives for treatments associated with the modulation of HO-1 expression.