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A possible link between Nerve Growth Factor (NGF) and Reelin might take place during impaired retinal development occurring in the Reelin deficient mouse model ( Reeler ). To better characterize NGF and retina impairments at the  Reeler  retina, vitreous and retina were investigated by means of protein expression and glial cell activation.  Reeler  (n = 9; RELN -/- ) and WT (n = 9; wild-type RELN +/+ , B6C3Fe) mice were analyzed at 14, 21 and 28 postnatal days (p). Retinas and vitreous were subjected to confocal analysis and protein array, followed by conventional analysis. A significant increase of NGF, IL33 and TIMP1, a trend to a decrease of IL12 and IL6, as well as a significant decrease of NT3 were detected in  Reeler  vitreous, particularly at p28 (p<0.05). MIP3β mRNA was decreased while IL33mRNA was significantly upregulated in  Reeler  retina. Increased number of GFAP +  and Nestin +  cells as well as upregulation of Glutamine Synthetase and Nestin mRNAs were observed in  Reeler  retinas (p<0.05). These findings extend our previous studies on  Reeler  retina showing a selective Müller cell activation. NGF and IL33 release into vitreous would suggest a local activation of Müller cells, in addition to retinal ganglion and accessory cells. Overall, the data from this experimental study would strength the potential neuroprotective role played by activated Muller cells through NGF release.

Changes in vitreal protein profile and retina mRNAs in Reeler mice: NGF, IL33 and Müller cell activation