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  • Title: Lactoferrin-appended solid lipid nanoparticles of paclitaxel for effective management of bronchogenic carcinoma.
    Author: Pandey V, Gajbhiye KR, Soni V.
    Journal: Drug Deliv; 2015 Feb; 22(2):199-205. PubMed ID: 24467582.
    Abstract:
    Lung cancer is a dreadful disease which claims to be more life threatening as compared to total sum up of colon, prostate and breast cancers. Thus, there is an urgent need to develop an effective delivery approach for its management. Paclitaxel (PTX) is one of the well-known choice as antineoplasitic agent used for the treatment of different types of human cancers such as non-small-cell lung, head and neck cancers, leukemia, breast, ovarian and melanoma. Lactoferrin (Lf), a "multifunctional protein" is crucial for natural immunity which is secreted by exocrine glands. Lf receptors are expressed on the apical surface on bronchial epithelial cells. These over-expressed LF receptors can be utilized for the transportation of Lf-conjugated drug or nanocarrier devices. The present study was aimed to develop PTX-loaded Lf-coupled solid lipid nanoparticles (SLNs) for the treatment of lung cancer. PTX-loaded SLNs were prepared, characterized and then coupled with Lf using carbodiimide chemistry. The formulations were characterized by transmission electron microscopy, particle size, polydispersity index and zeta potential, whereas Lf conjugation was confirmed by FT-IR and ¹H NMR and efficiency of prepared system was evaluated by in vitro, ex vivo and in vivo evaluations. The ex vivo cytotoxicity studies on human bronchial epithelial cell lines, BEAS-2B, revealed superior anticancer activity of Lf-coupled SLNs than plain SLNs and free PTX. In vivo biodistribution studies showed higher concentrations of PTX accumulated in lungs via Lf-coupled SLNs than plain SLNs and free PTX. These studies suggested that Lf-coupled PTX-loaded SLNs could be used as potential targeting carrier for delivering anticancer drug to the lungs with the minimal side effects.
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