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Updated: May 8, 2026
Isolation and Characterization of a Head and Neck Squamous Cell Carcinoma Subpopulation Having Stem Cell Characteristics
Published on: May 11, 2016
[Identification and isolation of cancer stem cells from A549 cells]
Hui Xia1, Changhai Yu, Wen Zhang
1Department of Carciothoracic Surgery, the First Affiliated Hospital of the General Hospital of PLA, Beijing 100048, China. 304xiahui@sina.com
Background And Objective:
Lung cancer stem cells are the root causes of lung cancer malignant phenotype and potential therapeutic target, the aim of this study is to isolate and characterize the cancer stem cells in the lung adenoearcinomas cell line A549, so as to provide an experimental basis for further stem cell research.
Methods:
The cancer stem cells were isolated from the lung adenoearcinomas cell line A549 using FACS. And the difference of colony formation, cell proliferation and tumorigenicity in vitro were also tested. The expression of CD133 and ABCG2 were evaluated by RT-PCR and Western blot.
Results:
The percentage of SP cells was 5.93% of A549 and 0.32% of A549 after incubation with verapamil. The results showed that there were significantly higher expression of CD133 and ABCG2 on SP cells than that of non-SP cells. And the ability of colony formation, cell proliferation and tumorigenicity in SP cell group were remarkably higher than that in non-SP cell group.
Conclusions:
Our results suggested that the cancer stem cells with higher expression of CD133 and ABCG2 can be isolated from the lung adenoearcinomas cell line A549 using FACS and be used in the further research experiments.
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