Abstract
Background: Vitamin D is known for its anticancerogenous potential. Prostaglandin E2 (PGE2) is a proliferation and inflammation activating agent. The production of PGE2 is dependent on the activity of cyclooxygenase-2 (COX-2). A link between vitamin D and PGE2 metabolism was recently shown. Materials and Methods: In MDA-MB-231 and MCF-7 breast cancer cell lines we investigated the influence of calcitriol and the COX-2 inhibitor celecoxib regarding cell growth via MTT test, as well as on the protein and mRNA expression of COX-2 using western blot and qRT-PCR. Results: The proliferation of MCF-7 and MDA-MB-231 was inhibited by both calcitriol and the COX-2 inhibitor celecoxib and even stronger by their combination. Moreover, calcitriol inhibited the COX-2 protein expression in MDA-MB-231, as well as the COX-2 mRNA expression in both cell lines. Conclusion: The combination of calcitriol and celecoxib demonstrated a cooperative growth-inhibiting effect in breast cancer cell lines.
Original language | English |
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Journal | Anticancer Research |
Volume | 35 |
Issue number | 2 |
Pages (from-to) | 1189-1195 |
Number of pages | 7 |
ISSN | 0250-7005 |
Publication status | Published - 01.01.2015 |
Research Areas and Centers
- Research Area: Luebeck Integrated Oncology Network (LION)