Stemness and plasticity of lung cancer cells: paving the road for better therapy

Area of Science:

• Oncology
• Cancer Biology
• Stem Cell Research

Background:

• Lung cancer causes significant mortality, with cancer stem cells (CSCs) offering a potential therapeutic target.
• The precise nature and role of lung CSCs remain largely unknown, limiting treatment efficacy.
• Current understanding of CSC properties and tumor biology is insufficient for clinical success.

Purpose of the Study:

• To review stemness and plasticity properties of lung cancer cells.
• To evaluate the validity of the classical CSC model in lung cancer.
• To propose alternative models for understanding lung cancer stemness.

Main Methods:

• Literature review of experimental evidence from lung cancer cell lines.
• Analysis of patient-derived primary lung cancer cultures.
• Comparative analysis of findings with the classical CSC model.

Main Results:

• Experimental data from lung cancer cell lines and primary cultures do not fully support the classical CSC model.
• Lung cancer cells exhibit significant versatility and plasticity.
• The existence of a distinct, classical CSC subpopulation in lung cancer is questionable.

Conclusions:

• The classical CSC model may not accurately represent lung cancer.
• Lung cancer cells demonstrate remarkable adaptability, suggesting a more dynamic tumor model.
• New conceptual models are needed to guide the development of effective lung cancer therapies targeting stemness.