Abstract：
:The recreation of an in vitro microenvironment to understand and manipulate the proliferation and migration of invasive breast cancer cells may allow one to put a halt to their metastasis capacity. Invasive cancer cells have been linked to embryonic stem (ES) cells as they possess certain similar characteristics and gene signatures. Embryonic microenvironments have the potential to reprogram cancer cells into a less invasive phenotype and help elucidate tumorigenesis and metastasis. In this study, we explored the feasibility of reconstructing embryonic microenvironments using mouse ES cells cultured in alginate hydrogel and investigated the interactions of ES cells and highly invasive breast cancer cells in 2D, 2&1/2D, and 3D cultures. Results showed that mouse ES cells inhibited the growth and tumor spheroid formation of breast cancer cells. The mouse ES cell microenvironment was further constructed and optimized in 3D alginate hydrogel microbeads, and co-cultured with breast cancer cells. Migration analysis displayed a significant reduction in the average velocity and trajectory of breast cancer cell locomotion compared to control, suggesting that bioengineered mouse ES cell microenvironments inhibited the proliferation and migration of breast cancer cells. This study may act as a platform to open up new options to understand and harness tumor cell plasticity and develop therapeutics for metastatic breast cancer.
journal_name
Biomaterialsjournal_title
Biomaterialsauthors
Raof NA,Raja WK,Castracane J,Xie Ydoi
10.1016/j.biomaterials.2011.02.035subject
Has Abstractpub_date
2011-06-01 00:00:00pages
4130-9issue
17eissn
0142-9612issn
1878-5905pii
S0142-9612(11)00187-6journal_volume
32pub_type
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