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Updated: Sep 2, 2025

Author Spotlight: Advancements in Molecular Biomarker Testing for Non-Squamous Non-Small Cell Lung Cancer
Published on: September 8, 2023
Immunotherapeutic targets in non-small cell lung cancer
Habib Sadeghirad1, Tayyeb Bahrami2, Sepideh M Layeghi3
1University of Queensland Diamantina Institute, Faculty of Medicine, The University of Queensland, Brisbane, Queensland, Australia.
Abstract:
Non-small cell lung cancer (NSCLC) is one of the most common types of cancer in the world and has a 5-year survival rate of ~20%. Immunotherapies have shown promising results leading to durable responses, however, they are only effective for a subset of patients. To determine the best therapeutic approach, a thorough and in-depth profiling of the tumour microenvironment (TME) is required. The TME is a complex network of cell types that form an interconnected network, promoting tumour cell initiation, growth and dissemination. The stroma, immune cells and endothelial cells that comprise the TME generate a plethora of cytotoxic or cytoprotective signalling pathways. In this review, we discuss immunotherapeutic targets in NSCLC tumours and how the TME may influence patients' response to immunotherapy.
Insights
Immunotherapy shows promise for non-small cell lung cancer (NSCLC), but effectiveness varies. Understanding the tumour microenvironment (TME) is crucial for optimizing NSCLC treatment strategies and improving patient responses to immunotherapy.
Area of Science:
- Oncology
- Immunology
- Cancer Biology
Background:
- Non-small cell lung cancer (NSCLC) has a low 5-year survival rate (~20%).
- Immunotherapies offer durable responses but benefit only a subset of NSCLC patients.
- The tumour microenvironment (TME) significantly influences cancer progression and treatment efficacy.
Purpose of the Study:
- To review immunotherapeutic targets in NSCLC.
- To explore the role of the TME in NSCLC immunotherapy response.
- To guide therapeutic strategies through comprehensive TME profiling.
Main Methods:
- Literature review of current research on NSCLC, TME, and immunotherapy.
- Analysis of signalling pathways within the TME (stroma, immune, endothelial cells).
- Discussion of TME's impact on patient response to immunotherapies.
Main Results:
- The TME comprises a complex network of cells influencing tumour initiation, growth, and spread.
- Cytotoxic and cytoprotective signalling pathways are generated by TME components.
- TME characteristics are critical determinants of immunotherapy effectiveness in NSCLC.
Conclusions:
- In-depth TME profiling is essential for selecting optimal NSCLC therapies.
- Targeting the TME holds potential for enhancing immunotherapy outcomes in NSCLC.
- Further research into TME-immunotherapy interactions is needed to improve patient survival rates.
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