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Updated: Mar 23, 2026

Author Spotlight: Advancements in Molecular Biomarker Testing for Non-Squamous Non-Small Cell Lung Cancer
Published on: September 8, 2023
cGAS-STING pathway in lung cancer and emerging therapeutic approaches
Anuva Joshi1, Enver Cagri Izgu2
1Department of Chemistry and Chemical Biology, Rutgers University, New Brunswick, NJ 08854, USA.
Abstract:
Lung cancer is an aggressive malignancy with one of the highest mortality rates among cancers. The cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) signaling pathway, a central mediator of immunity, is frequently attenuated in lung cancer through a variety of mechanisms. This attenuation facilitates immune evasion while creating both a significant clinical challenge and a major therapeutic opportunity. Here, we analyze how lung cancer subtypes disrupt the cGAS-STING pathway and evaluate emerging therapeutic strategies, including STING agonism, epigenetic reactivation, metabolic and enzymatic targeting, and combination regimens with immunotherapy and radiotherapy. Precision tuning of cGAS-STING activity offers a promising avenue to reshape the tumor microenvironment and overcome tumor progression in lung cancer.
Insights
Lung cancer often weakens the cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) pathway, hindering immunity. Restoring STING activity presents a key therapeutic strategy to combat this aggressive cancer.
Area of Science:
- Oncology
- Immunology
- Molecular Biology
Background:
- Lung cancer is a leading cause of cancer mortality.
- The cyclic GMP-AMP synthase (cGAS)-stimulator of interferon genes (STING) pathway is crucial for immune response but is often suppressed in lung tumors.
- This suppression aids cancer immune evasion, posing a clinical challenge and therapeutic target.
Purpose of the Study:
- To analyze how different lung cancer subtypes affect the cGAS-STING pathway.
- To evaluate novel therapeutic strategies targeting the cGAS-STING pathway in lung cancer.
- To explore the potential of modulating STING activity for improved lung cancer treatment.
Main Methods:
- Analysis of cGAS-STING pathway disruption across lung cancer subtypes.
- Evaluation of emerging therapies including STING agonists.
- Assessment of epigenetic reactivation, metabolic targeting, and combination regimens.
Main Results:
- Lung cancer subtypes differentially disrupt the cGAS-STING pathway.
- Various strategies show potential for restoring pathway activity.
- Combination therapies including immunotherapy and radiotherapy are being investigated.
Conclusions:
- Targeting the cGAS-STING pathway is a promising strategy for lung cancer.
- Precision modulation of STING activity can reshape the tumor microenvironment.
- This approach may overcome tumor progression and improve patient outcomes.
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