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Updated: May 4, 2026

Detection of Targetable Alterations in Non-small Cell Lung Cancer using Next-generation Sequencing
Published on: October 10, 2025
Oncogenes in non-small-cell lung cancer: emerging connections and novel therapeutic dynamics
Giulia M Stella1, Maurizio Luisetti2, Ernesto Pozzi3
1Department of Molecular Medicine, Division of Pneumology, Laboratory of Biochemistry and Genetics, University and Fondazione IRCCS Policlinico, San Matteo, Pavia, Italy; Institute for Cancer Research at Candiolo, Candiolo, Italy.
Abstract:
Non-small-cell lung cancer is a heterogeneous disease that is difficult to treat. Through efforts to define the molecular mechanisms involved in lung oncogenesis, molecularly targeted approaches for patients with lung cancer have now reached the clinical arena. Despite elucidation of some molecular mechanisms of lung carcinogenesis, prognosis for patients remains poor. This Review aims to highlight the functional associations between key oncogenes that drive lung tumorigenesis and are distinct targetable molecules. Oncogenes are defined by acquisition of mutations, which results in a dominant gain-of-function of the targeted protein. In this situation, a single mutated allele is sufficient to induce malignant transformation. Importantly, tumours become addicted to particular genetic alterations that cause oncogene activation and the continued expression of the signalling. An increasing amount of evidence sustains the rationale for targeting of oncogenic pathways rather than a single oncogene. A clear priority for both researchers and clinicians is to better understand the complexity of biological networks underlying lung cancer pathogenesis. This paradigmatic shift in tailoring therapies should effectively improve outcomes for patients.
Insights
Targeting oncogenic pathways, not just single oncogenes, offers a promising strategy for non-small-cell lung cancer. Understanding complex biological networks is key to improving patient outcomes in lung cancer treatment.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Non-small-cell lung cancer (NSCLC) is a complex and challenging disease to treat.
- Despite advances in understanding molecular mechanisms of lung carcinogenesis, patient prognosis remains poor.
- Molecularly targeted therapies have entered the clinical setting for NSCLC.
Purpose of the Study:
- To review the functional associations between key oncogenes driving lung tumorigenesis.
- To identify distinct targetable molecules within these oncogenic pathways.
- To emphasize the rationale for targeting oncogenic pathways over single oncogenes.
Main Methods:
- Review of current scientific literature on lung cancer oncogenesis.
- Analysis of molecular mechanisms involving oncogene activation and signaling.
- Synthesis of evidence supporting pathway-targeted therapies.
Main Results:
- Oncogenes, through mutations, lead to a gain-of-function in targeted proteins, driving malignant transformation.
- Tumors exhibit addiction to specific genetic alterations causing oncogene activation.
- Evidence supports targeting interconnected oncogenic pathways for therapeutic benefit.
Conclusions:
- A shift towards targeting oncogenic pathways is crucial for effective NSCLC treatment.
- A deeper understanding of the biological networks underlying lung cancer is a priority.
- Tailoring therapies based on pathway-level understanding promises to improve patient outcomes.
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