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Molecular characterization of circulating tumor cells in lung cancer: moving beyond enumeration.


ABSTRACT: Molecular characterization of tumor cells is a key step in the diagnosis and optimal treatment of lung cancer. However, analysis of tumor samples, often corresponding to small biopsies, can be difficult and does not accurately reflect tumor heterogeneity. Recent studies have shown that isolation of circulating tumor cells (CTCs) is feasible in non-small cell lung cancer patients, even at early disease stages. The amount of CTCs corresponds to the metastatic potential of the tumor and to patient prognosis. Moreover, molecular analyses, even at the single-cell level, can be performed on CTCs. This review describes the technologies currently available for detecting and capturing CTCs, the potential for downstream molecular diagnostics, and the clinical applications of CTCs isolated from lung cancer patients as screening, prognostic, and predictive tools. Main limitations of CTCs are also discussed.

SUBMITTER: Wang L 

PROVIDER: S-EPMC5752564 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature

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Molecular characterization of circulating tumor cells in lung cancer: moving beyond enumeration.

Wang Lei L   Dumenil Coraline C   Julié Catherine C   Giraud Violaine V   Dumoulin Jennifer J   Labrune Sylvie S   Chinet Thierry T   Emile Jean-François JF   He Biao B   Giroux Leprieur Etienne E  

Oncotarget 20171123 65


Molecular characterization of tumor cells is a key step in the diagnosis and optimal treatment of lung cancer. However, analysis of tumor samples, often corresponding to small biopsies, can be difficult and does not accurately reflect tumor heterogeneity. Recent studies have shown that isolation of circulating tumor cells (CTCs) is feasible in non-small cell lung cancer patients, even at early disease stages. The amount of CTCs corresponds to the metastatic potential of the tumor and to patient  ...[more]

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