Identification and expansion of the tumorigenic lung cancer stem cell population

Ruggero De Maria Marchiano, Giovanni Sette, A. Eramo, F. Lotti, G. Sette, E. Pilozzi, M. Biffoni, A. Di Virgilio, C. Conticello, L. Ruco, C. Peschle

Risultato della ricerca: Contributo in rivistaArticolo in rivista

1319 Citazioni (Scopus)

Abstract

Lung carcinoma is often incurable and remains the leading cancer killer in both men and women. Recent evidence indicates that tumors contain a small population of cancer stem cells that are responsible for tumor maintenance and spreading. The identification of the tumorigenic population that sustains lung cancer may contribute significantly to the development of effective therapies. Here, we found that the tumorigenic cells in small cell and non-small cell lung cancer are a rare population of undifferentiated cells expressing CD133, an antigen present in the cell membrane of normal and cancer-primitive cells of the hematopoietic, neural, endothelial and epithelial lineages. Lung cancer CD133+cells were able to grow indefinitely as tumor spheres in serum-free medium containing epidermal growth factor and basic fibroblast growth factor. The injection of 104lung cancer CD133+cells in immunocompromised mice readily generated tumor xenografts phenotypically identical to the original tumor. Upon differentiation, lung cancer CD133+cells acquired the specific lineage markers, while loosing the tumorigenic potential together with CD133 expression. Thus, lung cancer contains a rare population of CD133+cancer stem-like cells able to self-renew and generates an unlimited progeny of non-tumorigenic cells. Molecular and functional characterization of such a tumorigenic population may provide valuable information to be exploited in the clinical setting.
Lingua originaleEnglish
pagine (da-a)504-514
Numero di pagine11
RivistaCell Death and Differentiation
Volume15
DOI
Stato di pubblicazionePubblicato - 2008

Keywords

  • AC133 Antigen
  • Animals
  • Antigens, CD
  • Carcinoma, Non-Small-Cell Lung
  • Carcinoma, Small Cell
  • Cell Biology
  • Cell Differentiation
  • Drug Resistance, Neoplasm
  • Female
  • Glycoproteins
  • Humans
  • Lung Neoplasms
  • Mice
  • Mice, SCID
  • Molecular Biology
  • Neoplastic Stem Cells
  • Peptides
  • Phenotype
  • Tumor Cells, Cultured
  • Xenograft Model Antitumor Assays

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