Cell of origin of lung cancer

Jennifer M Hanna1, Mark W Onaitis

  • 1Department of Surgery, Duke University Medical Center, Durham.

Insights

Understanding lung cancer stem cells is crucial for developing new therapies. This review explores the role of normal lung stem cells and cancer-initiating cells in lung tumor development.

Area of Science:

  • Oncology
  • Stem Cell Biology
  • Pulmonology

Background:

  • Lung cancer is a leading cause of cancer mortality globally, with current treatments yielding disappointing outcomes.
  • Identifying the cell of origin for lung cancer is essential for developing novel therapeutic strategies.
  • Cancer stem cells (CSCs) with stem cell properties in solid tumors are implicated in therapeutic resistance.

Purpose of the Study:

  • To review current knowledge on normal lung stem cells and lung cancer stem cells.
  • To discuss the role of cancer-initiating cells and normal stem cells in lung tumor development.

Main Methods:

  • A systematic computerized literature search of the MEDLINE database was conducted.
  • Articles focusing on normal lung stem cells, lung cancer stem cells, or progenitor cells were identified.

Main Results:

  • Understanding the epithelial stem cell hierarchy in the lung is incomplete.
  • Tumor heterogeneity and lack of effective in vivo models hinder progress in CSC research.
  • Existing literature provides insights into the potential roles of stem cells in lung tumorigenesis.

Conclusions:

  • Further research into lung stem cells and cancer-initiating cells is vital for advancing lung cancer therapeutics.
  • Addressing the challenges of tumor heterogeneity and model systems is critical for future progress.
  • Elucidating the function of stem cells may unlock new avenues for treating lung cancer.

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