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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

GFR alpha-1 is expressed in parvalbumin GABAergic neurons in the hippocampus.

Glial cell line derived neurotrophic factor (GDNF) is a potent survival factor for several types of neurons. GDNF binds with high affinity to GDNF-family receptor alpha-1 (GFR alpha-1). This receptor is expressed in different areas of the brain, including the hippocampus and dentate gyrus. By using in situ hybridization and immunohistochemistry, we found that 19% to 37% of glutamic acid decarboxylase (GAD) expressing neurons co-expressed GFR alpha-1 in the hippocampus. GFR alpha-1/GAD co-expression was found mainly in the stratum (s) pyramidale (29-37%) and s. oriens (20-25%). Further characterization of GFR alpha-1 expressing interneurons, based on their calcium-binding protein immunoreactivity, demonstrated that many parvalbumin ( PV) immunoreactive neurons express GFR alpha-1 in the s. pyramidale of CA1 (72%), CA2 (70%) and CA3 (70%) subfields of the hippocampus. GFR alpha-1/ PV double labeled neurons were also detected in the s. oriens of CA1 (52%), CA2 (27%) and CA3 (36%) subfields. The expression of GFR alpha-1 in principal neurons and in a specific sub-population of GABAergic neurons ( PV-containing neurons) suggest that GDNF might modulate, in a selective manner, functions of the entire adult hippocampus.[1]

References

  1. GFR alpha-1 is expressed in parvalbumin GABAergic neurons in the hippocampus. Sarabi, A., Hoffer, B.J., Olson, L., Morales, M. Brain Res. (2000) [Pubmed]
 
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