Honokiol camptothecin loaded graphene oxide nanoparticle towards combinatorial anti cancer drug delivery.
Honokiol (HK) is a natural product isolated from the bark, cones, seeds and leaves of plants belonging to the genus Magnolia. It possesses anti cancer activity which can efficiently impede the growth and bring about apoptosis of a diversity of cancer cells. The major concerns of using HK are its poor solubility and lack of targeted drug delivery. In this study, a combinatorial drug is prepared by combining HK and camptothecin (CPT) Both CPT and HK belong to the Magnolian genus and induce apoptosis by cell cycle arrest at the S phase and G1 phase, respectively. The combinatorial drug thus synthesised was loaded onto a chitosan functionalised graphene oxide nanoparticles, predecorated with folic acid for site specific drug delivery. The CPT drug loaded nanocarrier was characterised by X ray diffractometer, scanning electron microscope, transmission electron microscope, UV vis spectroscopy and fluorescence spectroscopy, atomic force microscopy. The antioxidant properties, haemolytic activity and anti inflammatory activities were analysed. The cellular toxicity was analysed by 3 (4,5 Dimethylthiazol 2 yl) 2,5 Diphenyltetrazolium Bromide (MTT assay) and Sulforhodamine B (SRB) assay against breast cancer (MCF 7) cell lines.
IET nanobiotechnology