Influence factors on the formation of mammospheres from breast cancer stem cells
- VernacularTitle:乳腺癌干细胞微球体形成的影响因素
- Author:
Mingzhu HUANG
;
Fengchun ZHANG
;
Yanyun ZHANG
- Publication Type:Journal Article
- Keywords:
Breast neoplasms;
Tumor stem cells;
Cell culture techniques
- From:
Journal of Peking University(Health Sciences)
2003;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the influential factors on the formation of mammospheres from MCF-7,MDA-MB-231 and primary breast cancer epithelial cells,and to detect the proportion of CD44+/CD24-/low among them.Methods:MCF-7,MDA-MB-231 and primary breast cancer epithelial cells were cultured in suspension to generate primary mammospheres.After 7 days of cultivation,the proportion of cancer stem cells was measured in cells derived from mammosphere cells or monolayer culture cells by flow cytometry.Results:MCF-7 had the highest efficiency of mammosphere formation(2.1%?0.3%),while MDA-MB-231 cells hardly had any mammosphere formation,and no mammosphere formation was observed in breast cancer epithelial cells.MCF-7 tended to adhere under stem cell culture conditions without B27.Flow cytometry analysis indicated that,compared with 2.0%?0.1% for the MCF-7 monolayer culture cells,11.8%?0.3% and 8.2%?0.8% of the MCF-7 mammosphere cells from MCF-7 under different conditions were CD44+/CD24-/low(P
