نتایج جستجو برای: gdnf
تعداد نتایج: 1903 فیلتر نتایج به سال:
Glial cell line-derived neurotrophic factor (GDNF) has shown promise in the treatment of neurodegenerative disorders of basal ganglia origin such us Parkinson's disease (PD). In this study, we investigated the neurorestorative effect of controlled GDNF delivery using biodegradable microspheres in an animal model with partial dopaminergic lesion. Microspheres were loaded with N-glycosylated reco...
PURPOSE To identify signal-transduction pathways induced by glial cell-derived neurotrophic factor (GDNF) in corneal epithelial cells and to characterize its effect on cell migration. METHODS Expression of GDNF receptor (GFR) alpha-1 in human corneal epithelium was detected by RT-PCR and Western blot analysis. Expression and phosphorylation of Ret, activation of focal adhesion kinase (FAK) an...
Glial Cell Line-Derived Neurotrophic Factor (GDNF) is a protein expressed throughout the mammalian nervous system that serves several protective functions. Originally discovered in the brain, where it supports the survival of dopaminergic neurons, GDNF has since been shown to be expressed in skeletal muscle and is vital for the maintenance of motor neurons. The relationship between muscle hyper...
Glial cell line-derived neurotrophic factor (GDNF) is a member of the transforming growth factor-beta superfamily. Over the last decade, GDNF has been shown to promote regenerative and restorative effects on dopaminergic neurons. Accumulating evidence also demonstrates that administration of GDNF to areas of ischemic brain injury limits cerebral infarction and reduces damage to motor functions ...
The glial cell line-derived neurotrophic factor (GDNF) is a potent survival factor for several neuronal populations in different brain regions, including the hippocampus. However, no information is available on the: (1) hippocampal subregions involved in the GDNF-neuroprotective actions upon excitotoxicity, (2) identity of GDNF-responsive hippocampal cells, (3) transduction pathways involved in...
Amyotrophic lateral sclerosis (ALS) is a relentlessly progressive lethal disease that involves selective annihilation of motoneurons. Glial cell line-derived neurotrophic factor (GDNF) is proposed to be a promising therapeutic agent for ALS and other motor neuron diseases. Because adeno-associated virus (AAV) has been developed as an attractive gene delivery system with proven safety, we explor...
The majority of bioengineering strategies to promote peripheral nerve regeneration after injury have focused on therapies to bridge large nerve defects while fewer therapies are being developed to treat other nerve injuries, such as nerve transection. We constructed delivery systems using fibrin gels containing either free GDNF or polylactide-glycolic acid (PLGA) microspheres with GDNF to treat...
Glial cell line-derived neurotrophic factor (GDNF) promotes the survival of two populations of CNS neurons: motoneurons and midbrain dopaminergic neurons. To see whether GDNF promotes the survival of PNS neurons, we studied embryonic chicken autonomic and sensory neurons in culture. We show that GDNF promotes the survival of sympathetic, parasympathetic, proprioceptive, enteroceptive, and small...
We report the expression cloning and characterization of GDNFR-alpha, a novel glycosylphosphatidylinositol-linked cell surface receptor for glial cell line-derived neurotrophic factor (GDNF). GDNFR-alpha binds GDNF specifically and mediates activation of the Ret protein-tyrosine kinase (PTK). Treatment of Neuro-2a cells expressing GDNFR-alpha with GDNF rapidly stimulates Ret autophosphorylation...
The function of the isolectin B4 (IB4+)-binding and GDNF-dependent Ret (Ret+)-expressing non-peptidergic subpopulation of nociceptors remain poorly understood. We demonstrate that acute administration of GDNF sensitizes nociceptors and produces mechanical hyperalgesia in the rat. Intrathecal IB4-saporin, a selective toxin for IB4+/Ret+-nociceptors, attenuates GDNF but not NGF hyperalgesia. Conv...
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