Recent evidence for an expanded role of the kynurenine pathway of tryptophan metabolism in neurological diseases

MD Lovelace, B Varney, G Sundaram, MJ Lennon… - …, 2017 - Elsevier
The kynurenine pathway (KP) of tryptophan metabolism has emerged in recent years as a
key regulator of the production of both neuroprotective (eg kynurenic and picolinic acid, and …

IDO expression by dendritic cells: tolerance and tryptophan catabolism

AL Mellor, DH Munn - Nature Reviews Immunology, 2004 - nature.com
Abstract Indoleamine 2, 3-dioxygenase (IDO) is an enzyme that degrades the essential
amino acid tryptophan. The concept that cells expressing IDO can suppress T-cell …

Kynurenine pathway metabolism in human astrocytes: a paradox for neuronal protection

GJ Guillemin, SJ Kerr, GA Smythe… - Journal of …, 2001 - Wiley Online Library
There is good evidence that the kynurenine pathway (KP) and one of its products, quinolinic
acid (QUIN), play a role in the pathogenesis of neurological diseases, in particular AIDS …

HIV-1 infection and AIDS: consequences for the central nervous system

M Kaul, J Zheng, S Okamoto, HE Gendelman… - Cell Death & …, 2005 - nature.com
Infection with the human immunodeficiency virus-1 (HIV-1) can induce severe and
debilitating neurological problems that include behavioral abnormalities, motor dysfunction …

Characterization of the kynurenine pathway in human neurons

GJ Guillemin, KM Cullen, CK Lim… - Journal of …, 2007 - Soc Neuroscience
The kynurenine pathway is a major route of l-tryptophan catabolism producing neuroactive
metabolites implicated in neurodegeneration and immune tolerance. We characterized the …

HIV inhibits CD4+ T-cell proliferation by inducing indoleamine 2,3-dioxygenase in plasmacytoid dendritic cells

A Boasso, JP Herbeuval, AW Hardy, SA Anderson… - Blood, 2007 - ashpublications.org
Infection with the human immunodeficiency virus type-1 (HIV) results in acute and
progressive numeric loss of CD4+ T-helper cells and functional impairment of T-cell …

Current evidence for a role of the kynurenine pathway of tryptophan metabolism in multiple sclerosis

MD Lovelace, B Varney, G Sundaram… - Frontiers in …, 2016 - frontiersin.org
The kynurenine pathway (KP) is the major metabolic pathway of the essential amino acid
tryptophan (TRP). Stimulation by inflammatory molecules, such as interferon-γ (IFN-γ), is the …

Expression of the kynurenine pathway enzymes in human microglia and macrophages

GJ Guillemin, DG Smith, GA Smythe, PJ Armati… - … in tryptophan and …, 2003 - Springer
There is good evidence that the kynurenine pathway (KP) and one of its products, quinolinic
acid (QUIN) play a role in the pathogenesis of neurological diseases. Monocytic cells are …

Kynurenines in the CNS: from endogenous obscurity to therapeutic importance

TW Stone - Progress in neurobiology, 2001 - Elsevier
In just under 20 years the kynurenine family of compounds has developed from a group of
obscure metabolites of the essential amino acid tryptophan into a source of intensive …

CNS inflammation and macrophage/microglial biology associated with HIV-1 infection

A Yadav, RG Collman - Journal of neuroimmune pharmacology, 2009 - Springer
Human immunodeficiency virus type 1 (HIV-1) infection of the central nervous system (CNS)
can result in neurological dysfunction with devastating consequences in a significant …