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Interferon-gamma signaling pathway: Modulation of key genes in the progression of glioblastoma
Enrique Oropeza-Martínez1, Eva G Palacios Serrato1, Sayra X Zamora-Salas1
1Posgrado en Ciencias Genómicas, Autonomous University of Mexico City, Mexico 03100, Ciudad de México, Mexico.
Abstract:
The canonical signaling of interferon gamma (IFN-γ) through the Janus kinase 1 and 2-signal transducer and activator of transcription 1 (STAT1) axis leads to the expression of several interferon-stimulated genes (ISGs), which have diverse effects depending on the cellular context. In glioblastoma, a highly aggressive primary brain tumor in adults, elements of IFN-γ canonical signaling are deregulated, resulting in the overexpression of STAT1-target ISGs associated with tumor progression. This mini-review highlights key ISGs, including STAT1, interferon regulatory factor 1, programmed death-ligand 1, indoleamine 2,3-dioxygenase 1, and interferon-stimulated gene 15, involved in the pathology of glioblastoma. These genes may serve as valuable biomarkers and have therapeutic potential for targeting IFN-γ signaling in this malignancy.
Insights
Interferon gamma (IFN-γ) signaling is altered in glioblastoma, promoting tumor growth through specific interferon-stimulated genes (ISGs). Targeting these ISGs offers potential therapeutic strategies for this aggressive brain cancer.
Area of Science:
- Immunology
- Oncology
- Molecular Biology
Background:
- Interferon gamma (IFN-γ) signaling via the JAK/STAT pathway regulates gene expression.
- In glioblastoma, this signaling pathway is deregulated, leading to overexpression of STAT1-target interferon-stimulated genes (ISGs).
- These ISGs are implicated in glioblastoma progression.
Purpose of the Study:
- To review key ISGs involved in glioblastoma pathology.
- To highlight the role of IFN-γ signaling in glioblastoma.
- To discuss the potential of ISGs as biomarkers and therapeutic targets.
Main Methods:
- Literature review of ISGs in glioblastoma.
- Analysis of IFN-γ canonical signaling pathways.
- Identification of STAT1-target ISGs.
Main Results:
- STAT1 and other ISGs (IRF1, PD-L1, IDO1, ISG15) are overexpressed in glioblastoma.
- These genes contribute to tumor progression.
- IFN-γ signaling deregulation is a key feature of glioblastoma.
Conclusions:
- STAT1-target ISGs are critical in glioblastoma pathogenesis.
- These genes represent potential biomarkers for glioblastoma.
- Targeting IFN-γ signaling and its downstream ISGs may offer new therapeutic avenues for glioblastoma.
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