We integrate evidence of glucocorticoid regulation of BDNF at multiple levels, spanning from the well-documented glucocorticoid-induced changes in BDNF mRNA to studies examining alterations in BDNF receptor-mediated signaling. Further, we delineate potential lines of future investigation to address hitherto unexplored aspects of the
influence of glucocorticoids on BDNF. Finally, we discuss the current understanding of the contribution of BDNF to the modulation of structural and functional plasticity by glucocorticoids, in particular in the context Fosbretabulin cost of the hippocampus. Understanding the mechanistic crosstalk between glucocorticoids and BDNF holds promise for the identification of potential therapeutic targets for disorders
associated with the dysfunction of stress hormone pathways. This article is part of a Special Issue entitled: Steroid hormone actions in the CNS: the role of BDNF. (C) 2012 IBRO. Published by Elsevier Ltd. All rights reserved.”
“Fukutin-I is a member of a family of putative O-linked glycosyltransferases AZD1080 cost linked to the glycosylation of the dystrophin complex. Mutations in this family of proteins have been linked to a number of congenital muscular dystrophies that arise from the hypoglycosylation of alpha-dystroglycan. Critical to the function of Fukutin and other members of this family is their localisation within the cell, which has been shown to depend critically on the interactions between the N-terminal transmembrane domain of these proteins and the lipid bilayer within the ER/Golgi. To investigate how the interactions between the N-terminal transmembrane domain and the lipid bilayer regulate the localisation of Fukutin-I, we have developed an efficient Microtubule Associated expression and purification protocol in Escherichia coil to allow biophysical studies to be performed. Expressing the N-terminal domain of Fukutin-1 fused to a His(6) tag resulted in the localisation of the protein to the bacterial membrane. A purification strategy has been developed to isolate
the highly hydrophobic transmembrane domain of Fukutin-1 from the membrane with yields of approximately 4 mg per litre of minimal media. Preliminary biophysical analyses have confirmed the identity of the peptide and revealed that in hydrophobic solvents mimicking the bilayer, the peptide adopts a well-structured alpha-helix as predicted from the sequence. (C) 2010 Elsevier Inc. All rights reserved.”
“Brain-derived neurotrophic factor (BDNF) is a secreted protein that has been linked to numerous aspects of plasticity in the central nervous system (CNS). Stress-induced remodeling of the hippocampus, prefrontal cortex and amygdala is coincident with changes in the levels of BDNF, which has been shown to act as a trophic factor facilitating the survival of existing and newly born neurons.