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Abstract #5230 Published in IGR 1-2

Expression of CNTF in Mueller cells of the rat retina after pressure-induced ischemia.

Ju WK; Lee MY; Hofmann HD; Kirsch M; Chun MH
Neuroreport 1999; 10: 419-422


We have investigated the expression and cellular localization of ciliary neurotrophic factor (CNTF) in the rat retina following ischemia induced by transiently increasing the intraocular pressure. In the normal retina, CNTF immunoreactivity was restricted to profiles in the ganglion cell layer. Following ischemia and reperfusion, immunoreactivity appeared in Mueller cell somata and processes and its intensity increased between 1 day and 2 weeks post-lesion. Quantitative evaluation by immunoblotting confirmed that CNTF expression continuously increased up to 2 weeks after ischemic injury (to 600% of control levels), but had declined again to 250% of controls at 4 weeks post-lesion. Our findings suggest that CNTF supplied by Mueller cells has a protective function for lesioned neurons following transient ischemia.

Department of Anatomy, College of Medicine, The Catholic University of Korea, Seoul.


Classification:

5 Experimental glaucoma; animal models



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