Abstract
Methods were developed to isolate non-pigmented ciliary epithelium from bovine eyes (BCBE) free from other cell types in the ciliary process. Once background binding due to pigment was minimized, it was possible to assay specific beta adrenergic receptors in these preparations. The BCBE beta adrenergic receptors showed appropriate stereospecificity and an order of binding affinities compatible with a beta 2 adrenergic selectivity. Interestingly, specific high affinity muscarinic cholinergic receptors were detected in both BCBE and primate non-pigmented ciliary epithelium. These muscarinic receptors showed an appropriate affinity and selectivity for agonists and antagonists. Further evaluations of the receptors and responses of non-pigmented ciliary epithelial cells may prove useful in understanding the effects of adrenergic and cholinergic agents on aqueous humor inflow.
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