BETA-ADRENERGIC BINDING-SITES IN THE HUMAN EYE - AN AUTORADIOGRAPHIC STUDY

被引:37
作者
ELENA, PP [1 ]
DENIS, P [1 ]
KOSINABOIX, M [1 ]
SARAUX, H [1 ]
LAPALUS, P [1 ]
机构
[1] FAC MED NICE,DEPT PHARMACOL,AVE VALLOMBROSE,F-06034 NICE,FRANCE
来源
JOURNAL OF OCULAR PHARMACOLOGY | 1990年 / 6卷 / 02期
关键词
D O I
10.1089/jop.1990.6.143
中图分类号
R77 [眼科学];
学科分类号
100212 [眼科学];
摘要
Beta adrenergic binding sites were localized and characterized in the human eye by means of “in vitro” autoradiography, using [125I] (-) iodocyanopindolol (125ICYP) as radioligand. Binding sites were visualized by apposition of isotope sensitive film to slide mounted eye sections. Receptor sites were present in the extraocular muscles, in the conjunctiva, in the epithelium and endothelium of the cornea, in the trabeculum and in the ciliary muscle. They were also present in the lens epithelium and in the retina. The pigmented ocular structures were heavily labelled but the binding was nonspecific. Characterization of these binding sites was achieved by testing the ability of selective adrenergic compounds to displace 125ICYP binding. These studies suggested that the majority of adrenergic binding sites in nonpigmented structures of human eye were of a beta2 type. © 1990, Mary Ann Liebert, Inc. All rights reserved.
引用
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页码:143 / 149
页数:7
相关论文
共 23 条
[1]
Neufeld A.H., Page E.D., In vitro determination of the ability of drugs to bind to adrenergic receptors, Invest. Ophthalmol. Vis. Sci, 16, pp. 1118-1124, (1977)
[2]
Sears M.L., Autonomic nervous system: adrenergic agonists and antagonists, Pharmacology of the Eye, pp. 193-279, (1984)
[3]
Potter D.E., Adrenergic pharmacology of aqueous humor dynamics, Pharmacol. Rev, 33, pp. 133-152, (1981)
[4]
Bromberg B.B., Gregory D.S., Sears M.L., Beta-adrenergic receptors in ciliary processes of the rabbit, Invest. Ophthalmol. Vis. Sci, 19, pp. 203-207, (1980)
[5]
Trope G.E., Clark B., Beta adrenergic receptors in pigmented ciliary processes, Br. J. Ophthalmol, 66, pp. 788-792, (1982)
[6]
Gregory D.S., Bausher L.P., Bromberg B.B., The beta-adrenergic receptor and adenyl cyclase of rabbit ciliary processes, In New directions in ophthalmic research, pp. 127-145, (1981)
[7]
Elena P.P., Moulin G., Lapalus P., Characterization of beta adrenergic receptors in bovine pigmented ciliary processes, Curr. Eye Res, 3, 5, pp. 743-750, (1984)
[8]
Cepelik J., Cernohorsky M., The effects of adrenergic agonists and antagonists on the adenylate cyclase in albino rabbit ciliary processes, Exp. Eye Res, 32, pp. 291-299, (1981)
[9]
Nathanson J.A., Adrenergic regulation of intraocular pressure: identification of β2 adrenergic-stimulated adenylate cyclase in ciliary process epithelium, Proc. Natl. Acad. Sci, 77, pp. 7420-7424, (1980)
[10]
Elena P.P., Fredj-Reygrobellet D., Moulin G., Lapalus P., Pharmacological characteristics of beta-adrenergic-sensitive adenylate cyclase in non pigmented and in pigmented cells of bovine ciliary process, Curr. Eye Res, 3, 12, pp. 1383-1389, (1984)