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Updated: Apr 24, 2026

High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes
Published on: March 24, 2015
Interferon receptor signaling in malignancy: a network of cellular pathways defining biological outcomes
Eleanor N Fish1, Leonidas C Platanias2
1Toronto General Research Institute, University Health Network and Department of Immunology, University of Toronto, Toronto, Ontario, Canada.
Abstract:
IFNs are cytokines with important antiproliferative activity and exhibit key roles in immune surveillance against malignancies. Early work initiated over three decades ago led to the discovery of IFN receptor activated Jak-Stat pathways and provided important insights into mechanisms for transcriptional activation of IFN-stimulated genes (ISG) that mediate IFN biologic responses. Since then, additional evidence has established critical roles for other receptor-activated signaling pathways in the induction of IFN activities. These include MAPK pathways, mTOR cascades, and PKC pathways. In addition, specific miRNAs appear to play a significant role in the regulation of IFN signaling responses. This review focuses on the emerging evidence for a model in which IFNs share signaling elements and pathways with growth factors and tumorigenic signals but engage them in a distinctive manner to mediate antiproliferative and antiviral responses.
Insights
Interferons (IFNs) are crucial for anti-cancer immunity. This review explores how IFNs utilize shared signaling pathways with growth factors and tumorigenic signals uniquely to fight cancer and viruses.
Area of Science:
- Immunology
- Molecular Biology
- Cell Signaling
Background:
- Interferons (IFNs) are cytokines vital for immune surveillance against cancer.
- IFN receptor-activated Jak-Stat pathways are key to understanding IFN-stimulated gene (ISG) transcription.
- Other signaling pathways like MAPK, mTOR, and PKC also contribute to IFN activities.
Purpose of the Study:
- To review emerging evidence on how IFNs interact with signaling pathways.
- To present a model where IFNs uniquely engage shared signaling elements.
- To highlight the role of IFNs in antiproliferative and antiviral responses.
Main Methods:
- Literature review of established and emerging research on IFN signaling.
- Analysis of shared signaling pathways between IFNs, growth factors, and tumorigenic signals.
- Investigation into the regulatory roles of microRNAs (miRNAs) in IFN responses.
Main Results:
- IFNs employ distinct mechanisms to activate signaling pathways compared to growth factors.
- Shared signaling elements are modulated differently by IFNs to elicit antiproliferative and antiviral effects.
- Specific miRNAs significantly regulate IFN signaling pathways.
Conclusions:
- IFNs share signaling pathway components with growth factors and oncogenic signals.
- The unique engagement of these pathways by IFNs is critical for their therapeutic potential.
- Understanding these intricate signaling networks is key for developing novel cancer and antiviral therapies.
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