ArticleInvestigative ophthalmology & visual science2020
Indoleamine 2,3-Dioxygenase Regulates Macrophage Recruitment, Polarization and Phagocytosis in Aspergillus Fumigatus Keratitis.
Article in Investigative ophthalmology & visual science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 42 citations in OpenAlex.
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- HIF-1α Promotes Inflammatory Responses in Aspergillus Fumigatus Keratitis by Activating Pyroptosis Through Caspase-8/GSDMD Pathway.Investigative ophthalmology & visual science · 2025Article
- Bioinformatics Approach to Identifying Molecular Targets of Isoliquiritigenin Affecting Chronic Obstructive Pulmonary Disease: A Machine Learning Pharmacology Study.International journal of molecular sciences · 2025Article
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- Neuroimmune pathways involvement in neurodegeneration of R6/2 mouse model of Huntington's disease.Frontiers in cellular neuroscience · 2024Article
- Effect of Corneal Collagen Cross-Linking on Subsequent Corneal Fungal Infection in Rats.Translational vision science & technology · 2023Article
- Endogenous Follistatin-like 1 guarantees the immunomodulatory properties of mesenchymal stem cells during liver fibrotic therapy.Stem cell research & therapy · 2022Article
- Indoleamine 2,3 Dioxygenase 1-The Potential Link between the Innate Immunity and the Ischemia-Reperfusion-Induced Acute Kidney Injury?International journal of molecular sciences · 2022Review
- Topical Administration of 0.3% Tofacitinib Suppresses M1 Macrophage Polarization and Allograft Corneal Rejection by Blocking STAT1 Activation in the Rat Cornea.Translational vision science & technology · 2022Article
- Indoleamine 2,3-dioxygenase adjusts neutrophils recruitment and chemotaxis inInternational journal of ophthalmology · 2022Article
- Harnessing the immune system by targeting immune checkpoints: Providing new hope for Oncotherapy.Frontiers in immunology · 2022Review
- The Kynurenine Pathway-New Linkage between Innate and Adaptive Immunity in Autoimmune Endocrinopathies.International journal of molecular sciences · 2021Review
- The Role of SREC-Ⅰ in Innate Immunity to Aspergillus fumigatus Keratitis.Investigative ophthalmology & visual science · 2021Article
- Mechanisms of Macrophage Plasticity in the Tumor Environment: Manipulating Activation State to Improve Outcomes.Frontiers in immunology · 2021Review
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Authors and funding
11 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Purpose: To explore the influence of indoleamine 2,3-dioxygenase (IDO) on macrophage recruitment, polarization and phagocytosis in Aspergillus fumigatus keratitis. Methods: A murine model of A. fumigatus keratitis and peritoneal macrophages incubated with the hyphae of A. fumigatus were used. Macrophage recruitment in corneas was evaluated using immunofluorescence staining. The polarization of macrophages, which was stimulated by A. fumigatus and pretreatment with or without 1-methyltryptophan (1-MT), interferon gamma (IFNG), extracellular regulated protein kinases (ERK) antagonist, and p38 antagonist, was determined using reverse-transcription polymerase chain reaction and flow cytometry. P38 and ERK levels were determined using Western blotting. Macrophage phagocytosis was examined using colony-forming units. Results: Compared with the A.F. group, recruitment of macrophages increased, tumor necrosis factor-α (TNF-α) and inducible nitric oxide synthase (iNOS) expression decreased, whereas arginase-1 (Arg-1) and interleukin-10 (IL-10) expression increased in the mouse corneas of the 1-MT+A.F. group. The ratio of CD206+/CD86+ macrophages in the corneas and spleens of 1-MT+A.F. group increased. Furthermore, in peritoneal macrophages stimulated by A. fumigatus, 1-MT promoted Arg-1 and IL-10 expression while upregulating the ratio of CD206+/CD86+ macrophages. Conversely, IDO agonist IFNG promoted TNF-α and iNOS expression, inhibited Arg-1 and IL-10 expression and downregulated the ratio of CD206+/CD86+ macrophages. The role of IFNG was reversed by the antagonist of P38 or ERK. P38 and ERK levels were downregulated in corneas of 1-MT+A.F. group. Besides, IFNG inhibited macrophage phagocytosis. Conclusion: IDO inhibited macrophage recruitment and phagocytosis in A. fumigatus keratitis. Mechanistically, IDO is involved in M1 macrophage polarization in A. fumigatus keratitis through a MAPK/ERK-dependent pathway.
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