What question did this study set out to answer?

To investigate the IDO family's role in various diseases via the kynurenine pathway and its potential for therapeutic targeting.

February 2, 2026Open Access

IDO family: the metabolic crossroads connecting immunity, nerves and tumors

Key Points

To investigate the IDO family's role in various diseases via the kynurenine pathway and its potential for therapeutic targeting.
Review of existing literature on IDO family functions and associated diseases.
Analysis of the kynurenine pathway as it relates to immunity and tumors.
Exploration of therapeutic strategies including multi-target inhibitors and biomarker-guided precision medicine.
IDO family identified as a promising target for therapeutic intervention.
Potential for innovative delivery systems to improve treatment efficacy.
Insight into non-enzymatic functions and their implications for downstream signaling in diseases.

Abstract

The IDO family plays a multifaceted and context-dependent role in various diseases through the kynurenine pathway, making it a promising target for diagnostic biomarkers and therapeutic intervention. Future research should focus on optimizing multi-target inhibitors, developing innovative delivery systems, establishing biomarker-guided precision medicine strategies, and exploring non-enzymatic functions and downstream signaling networks of the IDO family. These efforts will help overcome the limitations of current therapies and provide new treatment paradigms for refractory diseases related to immune metabolic disorders.

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