Sebollela 2010 Neurotox Res

From Bioblast
Jump to: navigation, search
Publications in the MiPMap
Sebollela A, Freitas-Corrêa L, Oliveira FF, Mendes CT, Wasilewska-Sampaio AP, Camacho-Pereira J, Galina A, Brentani H, Passetti F, De Felice FG, Dias-Neto E, Ferreira ST (2010) Expression profile of rat hippocampal neurons treated with the neuroprotective compound 2,4-dinitrophenol: Up-regulation of cAMP signaling genes. Neurotox Res 18:112-23.

» PMID: 19949915

Sebollela A, Freitas-Correa L, Oliveira FF, Mendes CT, Wasilewska-Sampaio AP, Camacho-Pereira J, Galina A, Brentani H, Passetti F, De Felice FG, Dias-Neto E, Ferreira ST (2010) Neurotox Res

Abstract: 2,4-Dinitrophenol (DNP) is classically known as a mitochondrial uncoupler and, at high concentrations, is toxic to a variety of cells. However, it has recently been shown that, at subtoxic concentrations, DNP protects neurons against a variety of insults and promotes neuronal differentiation and neuritogenesis. The molecular and cellular mechanisms underlying the beneficial neuroactive properties of DNP are still largely unknown. We have now used DNA microarray analysis to investigate changes in gene expression in rat hippocampal neurons in culture treated with low micromolar concentrations of DNP. Under conditions that did not affect neuronal viability, high-energy phosphate levels or mitochondrial oxygen consumption, DNP induced up-regulation of 275 genes and down-regulation of 231 genes. Significantly, several up-regulated genes were linked to intracellular cAMP signaling, known to be involved in neurite outgrowth, synaptic plasticity, and neuronal survival. Differential expression of specific genes was validated by quantitative RT-PCR using independent samples. Results shed light on molecular mechanisms underlying neuroprotection by DNP and point to possible targets for development of novel therapeutics for neurodegenerative disorders.

Keywords: 2, 4-Dinitrophenol (DNP), Neuronal differentiation, Neuritogenesis

O2k-Network Lab: BR Rio de Janeiro Galina A


Labels: MiParea: Respiration, nDNA;cell genetics, Pharmacology;toxicology 


Organism: Rat  Tissue;cell: Nervous system  Preparation: Intact cells 

Regulation: Uncoupler  Coupling state: ROUTINE 

HRR: Oxygraph-2k