The Interferon-Gamma Paradox in Cancer

Area of Science:

• Immunology
• Oncology
• Molecular Biology

Background:

• Interferon-gamma (IFNG) is recognized for its role in antitumor immunity during cancer immunoediting.
• Emerging evidence indicates IFNG also possesses protumor functions by promoting immunoevasive mechanisms.
• These dual roles influence cancer-related inflammation and outcomes.

Purpose of the Study:

• To review the current understanding of the dichotomous roles of IFNG signaling in cancer.
• To highlight the importance of elucidating IFNG's mechanisms in the context of cancer immunotherapy.

Main Methods:

• Literature review of existing research on IFNG in cancer.
• Analysis of studies investigating IFNG's effects in different cancer stages (elimination, equilibrium, escape).
• Synthesis of data on IFNG's impact on tumor immunity and immunoevasion.

Main Results:

• IFNG acts as an antitumor factor in the elimination phase of cancer immunoediting.
• IFNG can promote tumorigenesis in equilibrium and escape phases by enhancing immune evasion.
• The dual functions of IFNG significantly impact cancer progression and treatment response.

Conclusions:

• A comprehensive understanding of IFNG's multifaceted roles is crucial for advancing cancer immunotherapy.
• Further research into the mechanisms underlying IFNG's protumor and antitumor activities is warranted.
• Targeting IFNG signaling pathways may offer novel therapeutic strategies for various cancers.