Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

Neuroprotective effects of hesperetin in mouse primary neurones are independent of CREB activation

Rainey-Smith, S., Schroetke, L-W, Bahia, P., Fahmi, A., Skilton, R., Spencer, J.P.E., Rice-Evans, C., Rattray, M. and Williams, R.J. (2008) Neuroprotective effects of hesperetin in mouse primary neurones are independent of CREB activation. Neuroscience Letters, 438 (1). pp. 29-33.

Link to Published Version:
*Subscription may be required


Dietary flavonoids, including the citrus flavanone hesperetin, may have stimulatory effects on cytoprotective intracellular signalling pathways. In primary mouse cortical neurone cultures, but not SH-SY5Y human neuroblastoma cells or human primary dermal fibroblasts (Promocells), hesperetin (100–300 nM, 15 min) caused significant increases in the level of ERK1/2 phosphorylation, but did not increase CREB phosphorylation. Administration of hesperetin for 18 h did not alter gene expression driven by the cyclic AMP response element (CRE), assessed using a luciferase reporter system, but 300 nM hesperetin partially reversed staurosporine-induced cell death in primary neurones. Our data show that hesperetin is a neuroprotective compound at concentrations where antioxidant effects are unlikely to predominate. The effects of hesperetin are cell-type dependent and, unlike the flavanol (−)epicatechin, neuroprotection in vitro is not associated with enhanced CREB phosphorylation or CRE-mediated gene expression.

Item Type: Journal Article
Publisher: Elsevier
Copyright: © 2008 Elsevier Ireland Ltd.
Item Control Page Item Control Page