Abstract
According to a Prognoscan database, upregulation of Bruton's tyrosine kinase (Btk) is associated with low overall survival in ovarian cancer patients. We found that spheroids-forming ovarian cancer cell, which highly expressed cancer stem-like cell (CSC) markers and Btk, were cisplatin resistant. We next treated CSCs and non- CSCs by a combination of ibrutinib and cisplatin. We found that chemoresistance was dependent on Btk and JAK2/STAT3, which maintained CSC by inducing Sox-2 and prosurvival genes. We suggest that addition of ibrutinib to cisplatin may improve treatment outcome in ovarian cancer.
Original language | English |
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Pages (from-to) | 13255-13268 |
Number of pages | 14 |
Journal | Oncotarget |
Volume | 6 |
Issue number | 15 |
Publication status | Published - 2015 |
Keywords
- Bruton's tyrosine kinase (Btk)
- Cancer stem cell (CSC)
- Cisplatin
- Ibrutinib
- Ovarian cancer
- Spheroids
ASJC Scopus subject areas
- Oncology