We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Inhibition of platelet-derived growth factor receptor synergistically increases the pharmacological effect of tamoxifen in estrogen receptor α positive breast cancer.
- Authors
Kim, Sangmin; You, Daeun; Jeong, Yisun; Yoon, Sun Young; Kim, Sung A; Lee, Jeong Eon
- Abstract
The platelet-derived growth factor (PDGF) family, a complex and imperative group of proangiogenic factors, acts as strong cell growth chemokines and is essential for the progression of malignancy in humans. In the present study, it was observed that aberrant PDGFB expression is associated with survival rates in patients with estrogen receptor-positive (ER+) breast cancer unlike other subtypes, including PDGFA, PDGFC and PDGFD. Accordingly, the effect of specific PDGF receptor (PDGFR) inhibitors on ER-α+ breast cancer cells was investigated. To block the PDGF-BB signaling pathway, PDGFR inhibitors (sunitinib or ponatinib) were employed. Sunitinib and ponatinib were found to arrest the cell cycle at the G0-G1 phase. In addition, the two PDGFR inhibitors were revealed to significantly inhibit cell growth and decrease the expression of matrix metalloproteinase-1, which is one of the metastasis-related genes. Finally, the combined effects of the two PDGFR inhibitors with tamoxifen were investigated. The results demonstrated that the combination of two PDGFR inhibitors with tamoxifen inhibited the growth of cells more consistently, compared with the effect mediated by tamoxifen alone. Therefore, it is proposed that PDGFR inhibitors, including sunitinib and ponatinib, should be applied effectively to treat ER-α+ breast cancer.
- Subjects
PLATELET-derived growth factor receptors; ESTROGEN receptors; BREAST cancer; PLATELET-derived growth factor; TAMOXIFEN
- Publication
Oncology Letters, 2021, Vol 21, Issue 4, pN.PAG
- ISSN
1792-1074
- Publication type
Article
- DOI
10.3892/ol.2021.12555