Kynurenine pathway metabolism in human astrocytes

G. J. Guillemin*, S. J. Kerr, G. A. Smythe, P. J. Armati, B. J. Brew

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)


The involvement of astrocytes in Kynurenine pathway (KP) metabolism is still poorly understood. In the present study, we investigated the ability of human fetal astrocytes in vitro to produce quinolinic and picolinic acids using mass spectrometry. In parallel, we estimated the level of expression of five major KP enzymes using RT-PCR. The results demonstrated that astrocytes express most KP enzymes, except for kynurenine-hydroxylase. This in vitro study provides novel informations regarding the ability of human fetal astrocytes to degrade L-tryptophan along the KP.

Original languageEnglish
Pages (from-to)125-131
Number of pages7
JournalAdvances in Experimental Medicine and Biology
Publication statusPublished - 2000
Externally publishedYes


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