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VIP modulation of cultured glial cells of the rat retina
1Department of Ophthalmology, University of Maryland, Baltimore 21201.
Current Eye Research
|November 1, 1989
Abstract:
Cultured retinal glial cells from the rat are responsive to modulation by vasoactive intestinal peptide (VIP). VIP (1 X 10(-6) M) elevated the intracellular cyclic AMP concentration from the basal level of (4.4-11.1) p mole/mg protein to (354-440) p mole/mg protein in three minutes at 25 degrees C. The half-maximal concentration is 4.8 X 10(-8) M, which is similar to that observed in the cultured retinal glial cells from the chick embryo.