Background: Many recent epidemiological studies have shown that epileptic patients are more likely suffer from depression, anxiety, and irritability. However, the cellular mechanisms of epilepsy-induced psychotic behaviors are not fully elucidated. Neurotrophin receptors have been suggested to be involved in epilepsy and also in psychiatric disorders. Up-regulation of p75NTR expression and acti...

the p75 pan-neurotrophin receptor (p75ntr) plays a pivotal role in linking the immune system with the nervous system. p75ntr is required for the development of several characteristic features of allergic asthma. also p75ntr upregulated by reactive schwann cells after peripheral nerve injury. moreover p75ntr and rhoa play a critical role in the regulation of apoptosis. to determine whether the d...

Neurotrophins constitute a group of growth factor that exerts important functions in the nervous system vertebrates. They act through two classes transmembrane receptors: tyrosine-kinase receptors and p75 neurotrophin receptor (p75NTR). The activation p75NTR can favor cell survival or apoptosis depending on diverse factors. Several studies evidenced link between pathogenesis prion diseases. In ...

The p75 neurotrophin receptor (p75NTR) potentiates Trk signaling, but the underlying mechanisms remain uncertain. Here, we examine the relationship between p75NTR cleavage and Trk signaling. We found that, in PC12 cells, nerve growth factor (NGF) induces rapid and robust alpha-secretase- and gamma-secretase-dependent cleavage of p75NTR, releasing the resulting intracellular domain into the cyto...

The generation of biologically active proteins by regulated intramembrane proteolysis is a highly conserved mechanism in cell signaling. Presenilin-dependent gamma-secretase activity is responsible for the intramembrane proteolysis of selected type I membrane proteins, including beta-amyloid precursor protein (APP) and Notch. A small fraction of intracellular domains derived from both APP and N...

The p75 pan-neurotrophin receptor (p75NTR) plays a pivotal role in linking the immune system with the nervous system. p75NTR is required for the development of several characteristic features of allergic asthma. Also p75NTR upregulated by reactive Schwann cells after peripheral nerve injury. Moreover p75NTR and RhoA play a critical role in the regulation of apoptosis. To determine whether the d...