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Updated: Sep 28, 2026
Ultra-Fast Amplicon-Based Next-Generation Sequencing in Non-Squamous Non-Small Cell Lung Cancer
Published on: September 8, 2023
Molecular approaches to lung cancer evaluation
Jacek Niklinski1, Fred R Hirsch
1Department of Thoracic Surgery, Medical Academy of Bialystok, 24A M Sklodowska-Curie St, 15-276 Bialystok, Poland. niklinsj@cksr.ac.bialystok.pl
Abstract:
The stagnation of therapeutic results in lung cancer over the last decade(s) is a matter of great concern, also due to the constantly increasing incidence of the disease. Among the reasons for this failing therapeutic progress is the lack of understanding of the molecular mechanisms underlying the disease. Presently molecular biology techniques contribute to the deciphering of these mechanisms. This review article gives an overview of the actual situation. The genetic changes leading to malignancy are successively considered at the DNA, RNA and protein levels. Alterations at the DNA level represent the bulk of the available data, being related to p53 mutations, alterations in the beta-tubulin gene, microsatellite alterations, methods for identifying individual and isolated aberrant cells, identification of epigenetic mechanisms such as methylation of the promoter region of tumor suppressor genes; alterations in pre-neoplastic lesions are also evoked. In all cases, the techniques are described and results presented. RNA based methods are critically considered, and the yeast functional assay described. Protein based methods are also considered. The use of cDNA microarrays opens new perspectives and brings the simultaneous identification of numerous DNA alterations at a grip, with hopefully significant improvements in treatment results and increased efficiency for early detection and prevention.
Insights
Understanding molecular mechanisms in lung cancer is crucial for improving treatments. This review details genetic and epigenetic alterations at DNA, RNA, and protein levels, highlighting new detection methods.
Area of Science:
- Oncology
- Molecular Biology
- Genetics
Background:
- Therapeutic outcomes for lung cancer have stagnated despite rising incidence.
- A key barrier to progress is the incomplete understanding of the molecular mechanisms driving lung cancer.
- Advancements in molecular biology are essential for deciphering these complex mechanisms.
Purpose of the Study:
- To provide a comprehensive overview of the current understanding of molecular mechanisms in lung cancer.
- To review genetic alterations at the DNA, RNA, and protein levels.
- To discuss novel techniques for early detection and improved treatment strategies.
Main Methods:
- Analysis of genetic changes including p53 mutations, beta-tubulin gene alterations, and microsatellite alterations.
- Investigation of epigenetic mechanisms like promoter methylation of tumor suppressor genes.
- Evaluation of RNA-based methods (e.g., yeast functional assay) and protein-based methods.
- Exploration of cDNA microarrays for simultaneous identification of multiple DNA alterations.
Main Results:
- Significant data exists on DNA-level alterations, including mutations and epigenetic changes.
- Pre-neoplastic lesion alterations are also considered.
- RNA and protein-based methods offer complementary insights into disease mechanisms.
- cDNA microarrays show promise for comprehensive genomic profiling.
Conclusions:
- A deeper understanding of molecular mechanisms is vital for advancing lung cancer therapy.
- New molecular techniques, particularly cDNA microarrays, offer potential for improved early detection and personalized treatment.
- Continued research into genetic and epigenetic alterations is key to overcoming therapeutic stagnation.