6533b873fe1ef96bd12d4efa
RESEARCH PRODUCT
Analysis of molecular mechanisms and anti-tumoural effects of zoledronic acid in breast cancer cells
Stefano CarusoSantini DanieleN. MargareseLidia Rita CorsiniL. InsalacoFrancesca Di GaudioDaniele FanaleValeria AmodeoMarianna TerrasiViviana BazanAntonio RussoAntonio Russosubject
medicine.medical_specialtyAngiogenesismedicine.medical_treatmentBlotting WesternAngiogenesis InhibitorsAntineoplastic AgentsBreast NeoplasmsBiologyReal-Time Polymerase Chain ReactionZoledronic AcidZOL FN1 TGF-b1 THBS-1 invasion breast cancerBone resorptionThrombospondin 1Transforming Growth Factor beta1breast cancerBreast cancerTGF-β1Internal medicineThrombospondin 1medicineHumansBone ResorptionCell ProliferationMatrigelDiphosphonatesFN1Gene Expression ProfilingImidazolesCancerOriginal ArticlesCell BiologyZOLBisphosphonateMicroarray Analysisinvasionmedicine.diseaseFibronectinsUp-RegulationGene Expression Regulation NeoplasticEndocrinologyZoledronic acidTHBS-1MCF-7 CellsCancer researchMolecular MedicineFemalemedicine.drugdescription
Zoledronic acid (ZOL) is the most potent nitrogen-containing bisphosphonate (N-BPs) that strongly binds to bone mineral and acts as a powerful inhibitor of bone resorption, already clinically available for the treatment of patients with osteolytic metastases. Recent data also suggest that ZOL, used in breast cancer, may provide more than just supportive care modifying the course of the disease, though the possible molecular mechanism of action is still unclear. As breast cancer is one of the primary tumours with high propensity to metastasize to the bone, we investigated, for the first time, differential gene expression profile on Michigan Cancer Foundation-7 (MCF-7) breast cancer cells treated with low doses of ZOL (10 lM). Microarrays analysis was used to identify, describe and summarize evidence regarding the molecular basis of actions of ZOL and of their possible direct anti-tumour effects. We validated gene expression results of specific transcripts involved in major cellular process by Real Time and Western Blot analysis and we observed inhibition of proliferation and migration through 3-(4,5-dimethylthiazol-2-yl)-2,5- diphenyltetrazolium bromide (MTT) and Matrigel assay. We then focused on changes in the cytoskeletal components as fibronectin 1 (FN1), actin, and anti angiogenic compounds as transforming growth factor-b1 (TGF-b1) and thrombospondin 1 (THBS1). The up-regulation of these products may have an important role in inhibiting proliferation, invasion and angiogenesis mediated by ZOL.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 |