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RESEARCH PRODUCT
Inhibition of γ-glutamyl transpeptidase decreases amino acid uptake in human keratinocytes in culture
Ana A. RamirezA. CastellsPilar BlayJose ViñaJuan R. Viñasubject
KeratinocytesGlucose uptakeAmino acid transportHuman keratinocyteBiophysicsIn Vitro TechniquesBiologyBiochemistrychemistry.chemical_compoundStructural BiologyGeneticsHumansAmino AcidsMolecular BiologyAcivicinCells Culturedchemistry.chemical_classificationAlanineBiological TransportIsoxazolesgamma-GlutamyltransferaseCell BiologyGlutathioneGlutathioneIn vitroγ-Glutamyl transpeptidaseGlucoseEnzymechemistryBiochemistryCell cultureCell cultureLeucinedescription
Abstract Acivicin inhibits γ-glutamyl transpeptidase activity in human keratinocytes in culture. Treatment of these cells with acivicin produces a decrease in the uptake of L-[U-14C]alanine, 2-amino-[1-14C]-isobutyrate, L[U-14C]leucine and l-aminocyclopentane-l-[14C]carboxylate. D-[U-14C]glucose uptake is not affected by the presence of acivicin. These results support, for the first time in vitro, the hypothesis that the γ-glutarml cycle may be involved in amino acid uptake by human cells.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1990-08-20 | FEBS Letters |