Indoleamine-2,3-dioxygenase: An important controller in maintaining mesenchymal stem cell-mediated immunomodulatory homeostasis

Mesenchymal stem cells (MSCs) have been widely used in the treatment of various autoimmune and inflammation-related diseases due to their potent immunomodulatory properties. Several studies have demonstrated that MSC-mediated immunomodulation is complex and bidirectional, with the in vivo microenvir...

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Main Authors: Yufei Hui, Xue Jiao, Li Yang, Dejin Lu, Yanbo Han, Wen Yang, Yanli Cao, Yuxi Miao, Shiqiang Gong, Minjie Wei
Format: Article
Language:English
Published: Elsevier 2025-07-01
Series:Acta Pharmaceutica Sinica B
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Online Access:http://www.sciencedirect.com/science/article/pii/S2211383525002849
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author Yufei Hui
Xue Jiao
Li Yang
Dejin Lu
Yanbo Han
Wen Yang
Yanli Cao
Yuxi Miao
Shiqiang Gong
Minjie Wei
author_facet Yufei Hui
Xue Jiao
Li Yang
Dejin Lu
Yanbo Han
Wen Yang
Yanli Cao
Yuxi Miao
Shiqiang Gong
Minjie Wei
author_sort Yufei Hui
collection DOAJ
description Mesenchymal stem cells (MSCs) have been widely used in the treatment of various autoimmune and inflammation-related diseases due to their potent immunomodulatory properties. Several studies have demonstrated that MSC-mediated immunomodulation is complex and bidirectional, with the in vivo microenvironment influencing the direction of this modulation. Indoleamine-2,3-dioxygenase (IDO), an immunosuppressive factor, has been identified as a key “switch” in the immunomodulatory role of MSCs. In this review, we explore how IDO functions as a critical regulator of MSC immunoregulatory plasticity. We delve into the mechanisms by which changes in IDO expression affect the function of various immune cells, summarize relevant research and clinical advances regarding the role of IDO expression in MSC-based therapies for various diseases, and discuss potential therapeutic strategies that target IDO to enhance the stability of MSC therapeutic effects. This provides a theoretical foundation for optimizing MSCs as safer and more effective clinical therapeutic agents.
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issn 2211-3835
language English
publishDate 2025-07-01
publisher Elsevier
record_format Article
series Acta Pharmaceutica Sinica B
spelling doaj-art-1de5bb226aa14026931d912e18a21d2d2025-08-20T02:41:32ZengElsevierActa Pharmaceutica Sinica B2211-38352025-07-011573404341810.1016/j.apsb.2025.04.022Indoleamine-2,3-dioxygenase: An important controller in maintaining mesenchymal stem cell-mediated immunomodulatory homeostasisYufei Hui0Xue Jiao1Li Yang2Dejin Lu3Yanbo Han4Wen Yang5Yanli Cao6Yuxi Miao7Shiqiang Gong8Minjie Wei9Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, ChinaDepartment of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, ChinaDepartment of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, ChinaDepartment of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, China; Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, ChinaDepartment of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, ChinaDepartment of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, ChinaThe First Affiliated Hospital of China Medical University, Shenyang 110001, ChinaDepartment of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, China; Corresponding authors.Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, China; Corresponding authors.Department of Pharmacology, School of Pharmacy, China Medical University, Shenyang 110122, China; Liaoning Medical Diagnosis and Treatment Center, Shenyang 110000, China; Corresponding authors.Mesenchymal stem cells (MSCs) have been widely used in the treatment of various autoimmune and inflammation-related diseases due to their potent immunomodulatory properties. Several studies have demonstrated that MSC-mediated immunomodulation is complex and bidirectional, with the in vivo microenvironment influencing the direction of this modulation. Indoleamine-2,3-dioxygenase (IDO), an immunosuppressive factor, has been identified as a key “switch” in the immunomodulatory role of MSCs. In this review, we explore how IDO functions as a critical regulator of MSC immunoregulatory plasticity. We delve into the mechanisms by which changes in IDO expression affect the function of various immune cells, summarize relevant research and clinical advances regarding the role of IDO expression in MSC-based therapies for various diseases, and discuss potential therapeutic strategies that target IDO to enhance the stability of MSC therapeutic effects. This provides a theoretical foundation for optimizing MSCs as safer and more effective clinical therapeutic agents.http://www.sciencedirect.com/science/article/pii/S2211383525002849Mesenchymal stem cells (MSCs)Indoleamine-2,3-dioxygenase (IDO)ImmunomodulatoryPlasticityInflammationTryptophan (Trp)
spellingShingle Yufei Hui
Xue Jiao
Li Yang
Dejin Lu
Yanbo Han
Wen Yang
Yanli Cao
Yuxi Miao
Shiqiang Gong
Minjie Wei
Indoleamine-2,3-dioxygenase: An important controller in maintaining mesenchymal stem cell-mediated immunomodulatory homeostasis
Acta Pharmaceutica Sinica B
Mesenchymal stem cells (MSCs)
Indoleamine-2,3-dioxygenase (IDO)
Immunomodulatory
Plasticity
Inflammation
Tryptophan (Trp)
title Indoleamine-2,3-dioxygenase: An important controller in maintaining mesenchymal stem cell-mediated immunomodulatory homeostasis
title_full Indoleamine-2,3-dioxygenase: An important controller in maintaining mesenchymal stem cell-mediated immunomodulatory homeostasis
title_fullStr Indoleamine-2,3-dioxygenase: An important controller in maintaining mesenchymal stem cell-mediated immunomodulatory homeostasis
title_full_unstemmed Indoleamine-2,3-dioxygenase: An important controller in maintaining mesenchymal stem cell-mediated immunomodulatory homeostasis
title_short Indoleamine-2,3-dioxygenase: An important controller in maintaining mesenchymal stem cell-mediated immunomodulatory homeostasis
title_sort indoleamine 2 3 dioxygenase an important controller in maintaining mesenchymal stem cell mediated immunomodulatory homeostasis
topic Mesenchymal stem cells (MSCs)
Indoleamine-2,3-dioxygenase (IDO)
Immunomodulatory
Plasticity
Inflammation
Tryptophan (Trp)
url http://www.sciencedirect.com/science/article/pii/S2211383525002849
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