Glutathione metabolism at the blood-cerebrospinal fluid barrier.

M E Anderson, M Underwood, R J Bridges, A Meister

Department of Biochemistry, Cornell University Medical College, New York, New York 10021.

The FASEB journal : official publication of the Federation of American Societies for Experimental Biology 1989 Nov

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Glutathione metabolism and transport in the choroid plexus were probed by determining the effects of administration to rats of several compounds (buthionine sulfoximine, L-2-oxothiazolidine-4-carboxylate, L-(alpha 5,5S)-alpha-amino-3-chloro-4,5-dihydro-5-isoxazole acetic acid, gamma-glutamyl alanine, and glutathione monoethyl ester) on the levels of glutathione and cysteine in the cerebrospinal fluid. The findings indicate that glutathione is actively metabolized in the choroid plexus by pathways similar to those in kidney and other tissues. The level of glutathione in the cerebrospinal fluid can be decreased or increased by giving compounds that do not, under similar conditions, appreciably alter total brain levels of glutathione. Glutathione monoethyl ester is effectively transported into the cerebrospinal fluid.

Citation

M E Anderson, M Underwood, R J Bridges, A Meister. Glutathione metabolism at the blood-cerebrospinal fluid barrier. The FASEB journal : official publication of the Federation of American Societies for Experimental Biology. 1989 Nov;3(13):2527-31