A modified method by differential adhesion and serum-free culture medium for enrichment of cancer stem cells.

Abstract:

Objective:In this study, we showed a modified method for the isolation of cancer stem cells (CSCs) using a combination of differential adhesion method and serum-free culture medium (SFM) method. Materials and Methods:Trypsin-sensitive cells and trypsin-resistant cells were isolated from MB49, EJ, and SK-OV-3 cells using a combination of differential adhesion method and SFM method. The CSCs markers expression of trypsin-resistant cells was verified by the flow cytometry, the Western blotting, and the quantitative polymerase chain reaction. Functional comparisons were verified by the resistance to chemotherapy assay, the transwell assay, and the tumor xenograft formation assay. Results:Trypsin-resistant cells were isolated successfully. They were identified with high expression of CSCs markers and possessed higher resistance to chemotherapy, greater migration in vitro and stronger tumorigenic abilities in vivo. Conclusion:Trypsin-resistant cells showed specific CSCs characterizations. They were able to be isolated successfully with a modified method by a combination of differential adhesion method and SFM method.

journal_name

J Cancer Res Ther

authors

Zhu YT,Wang CY,Pang SY,Lei CY,Luo Y,Tan WL

doi

10.4103/0973-1482.174533

subject

Has Abstract

pub_date

2018-06-01 00:00:00

pages

S421-S426

issue

Supplement

eissn

0973-1482

issn

1998-4138

pii

JCanResTher_2018_14_9_421_174533

journal_volume

14

pub_type

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