Electrochemical Determination of Kynurenine Pathway Metabolites—Challenges and Perspectives

In recent years, tryptophan metabolism via the kynurenine pathway has become one of the most active research areas thanks to its involvement in a variety of physiological processes, especially in conditions associated with immune dysfunction, central nervous system disorders, autoimmunity, infection...

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Main Authors: Ilona Sadok, Magdalena Staniszewska
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/21/7152
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author Ilona Sadok
Magdalena Staniszewska
author_facet Ilona Sadok
Magdalena Staniszewska
author_sort Ilona Sadok
collection DOAJ
description In recent years, tryptophan metabolism via the kynurenine pathway has become one of the most active research areas thanks to its involvement in a variety of physiological processes, especially in conditions associated with immune dysfunction, central nervous system disorders, autoimmunity, infection, diabetes, and cancer. The kynurenine pathway generates several metabolites with immunosuppressive functions or neuroprotective, antioxidant, or toxic properties. An increasing body of work on this topic uncovers a need for reliable analytical methods to help identify and quantify tryptophan metabolites at physiological concentrations in biological samples of different origins. Recent methodological advances in the fabrication and application of electrochemical sensors promise a rise in the future generation of novel analytical systems. This work summarizes current knowledge and provides important suggestions with respect to direct electrochemical determinations of kynurenine pathway metabolites (kynurenines) in complex biological matrices. Measurement challenges, limitations, and future opportunities of electroanalytical methods to advance study of the implementation of kynurenines in disease conditions are discussed.
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spelling doaj.art-179ce9f816d841ba9d192dcee2f9e37f2023-11-22T21:37:22ZengMDPI AGSensors1424-82202021-10-012121715210.3390/s21217152Electrochemical Determination of Kynurenine Pathway Metabolites—Challenges and PerspectivesIlona Sadok0Magdalena Staniszewska1Laboratory of Separation and Spectroscopic Method Applications, Centre for Interdisciplinary Research, Faculty of Science and Health, The John Paul II Catholic University of Lublin, 20-708 Lublin, PolandLaboratory of Separation and Spectroscopic Method Applications, Centre for Interdisciplinary Research, Faculty of Science and Health, The John Paul II Catholic University of Lublin, 20-708 Lublin, PolandIn recent years, tryptophan metabolism via the kynurenine pathway has become one of the most active research areas thanks to its involvement in a variety of physiological processes, especially in conditions associated with immune dysfunction, central nervous system disorders, autoimmunity, infection, diabetes, and cancer. The kynurenine pathway generates several metabolites with immunosuppressive functions or neuroprotective, antioxidant, or toxic properties. An increasing body of work on this topic uncovers a need for reliable analytical methods to help identify and quantify tryptophan metabolites at physiological concentrations in biological samples of different origins. Recent methodological advances in the fabrication and application of electrochemical sensors promise a rise in the future generation of novel analytical systems. This work summarizes current knowledge and provides important suggestions with respect to direct electrochemical determinations of kynurenine pathway metabolites (kynurenines) in complex biological matrices. Measurement challenges, limitations, and future opportunities of electroanalytical methods to advance study of the implementation of kynurenines in disease conditions are discussed.https://www.mdpi.com/1424-8220/21/21/7152kynurenine pathwaytryptophan metaboliteskynurenineelectrochemical detectionelectrochemical sensorsbiological samples analysis
spellingShingle Ilona Sadok
Magdalena Staniszewska
Electrochemical Determination of Kynurenine Pathway Metabolites—Challenges and Perspectives
Sensors
kynurenine pathway
tryptophan metabolites
kynurenine
electrochemical detection
electrochemical sensors
biological samples analysis
title Electrochemical Determination of Kynurenine Pathway Metabolites—Challenges and Perspectives
title_full Electrochemical Determination of Kynurenine Pathway Metabolites—Challenges and Perspectives
title_fullStr Electrochemical Determination of Kynurenine Pathway Metabolites—Challenges and Perspectives
title_full_unstemmed Electrochemical Determination of Kynurenine Pathway Metabolites—Challenges and Perspectives
title_short Electrochemical Determination of Kynurenine Pathway Metabolites—Challenges and Perspectives
title_sort electrochemical determination of kynurenine pathway metabolites challenges and perspectives
topic kynurenine pathway
tryptophan metabolites
kynurenine
electrochemical detection
electrochemical sensors
biological samples analysis
url https://www.mdpi.com/1424-8220/21/21/7152
work_keys_str_mv AT ilonasadok electrochemicaldeterminationofkynureninepathwaymetaboliteschallengesandperspectives
AT magdalenastaniszewska electrochemicaldeterminationofkynureninepathwaymetaboliteschallengesandperspectives