Abstract
IntroductionNanoparticles are promising as a new approach to enhance chemo- radiotherapy efficiency in breast cancer mainly via targeted therapy. Materials & methodsSKBR3 and T47D breast cancer cells were treated with superparamagnetic mesoporous hydroxyapatite nanocomposites (SPmHANs)conjugated with 1 μM doxorubicin and 0.5 mM 2-Deoxy-d-Glucose and irradiated with 1 and 2 Gy gamma rays in vitro. The treatment toxicity and also the apoptosis/necrosis ratio were measured by MTT assay and also ELISA cell death detection PLUS, respectively. ResultsThe decreased cell viability with the combined treatment, with determined 42% loading efficiency for 200 ppm 2DG and 93% for5ppm doxorubicin on SPmHANs in PH about 7.4 and 5.5, were calculated to 60.9% and 68% compared to radiotherapy alone inT47D and SKBR3 cells (both with p < 0.05), respectively. ConclusionBreast cancer cure may boost from The combined targeted nanoparticle treatment with doxorubicin and 2-Deoxy-d-Glucose may boost breast cancer radiotherapy by improved chemodrug localization, increased cytotoxicity in tumor cells and decreased single modality treatment doses.
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