Novel molecular targets of the neuroprotective/neurorescue multimodal iron chelating drug M30 in the mouse brain

Neuroscience
Lana KupershmidtMoussa B H Youdim

Abstract

The novel multifunctional brain permeable iron, chelator M30 [5-(N-methyl-N-propargyaminomethyl)-8-hydroxyquinoline] was shown to possess neuroprotective activities in vitro and in vivo, against several insults applicable to various neurodegenerative diseases, such as Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. In the present study, we demonstrate that systemic chronic administration of M30 resulted in up-regulation of hypoxia-inducible factor (HIF)-1α protein levels in various brain regions (e.g. cortex, striatum, and hippocampus) and spinal cord of adult mice. Real-time RT-PCR revealed that M30 differentially induced HIF-1α-dependent target genes, including vascular endothelial growth factor (VEGF), erythropoietin (EPO), enolase-1, transferrin receptor (TfR), heme oxygenase-1 (HO-1), inducible nitric oxide synthase (iNOS), and glucose transporter (GLUT)-1. In addition, mRNA expression levels of the growth factors, brain-derived neurotrophic factor (BDNF) and glial cell-derived neurotrophic factor (GDNF) and three antioxidant enzymes (catalase, superoxide dismutase (SOD)-1, and glutathione peroxidase (GPx)) were up-regulated by M30 treatment in a brain-region-dependent manner. Signal transducti...Continue Reading

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