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Non-small cell lung cancer (NSCLC) is one of the most prevalent cancers diagnosed worldwide, yet managing it is still challenging. The epidermal growth factor receptor (EGFR) exhibits aberrant signalling in a wide range of human cancers, and it is reported to overexpress in most NSCLC cases. The monoclonal antibody [Cetuximab (Cet)] was conjugated onto the surface of the poly (lactide-co-glycolide) (PLGA) nanoparticles which were loaded with docetaxel (DTX) for the development of targeted therapy against lung cancer. This site-specific delivery system exhibited an enhanced cellular uptake in lung cancer cells which overexpress EGFR (A549 and NCI-H23). The nanoparticles also showed better therapeutic effectiveness against NSCLC cells, as evidenced by reduced IC 50  values, cell cycle arrest at the G2/M phase, and increased apoptosis. The improved efficacy and  in vivo  tolerance of Cet-DTX NPs were demonstrated in benzo(a)pyrene (BaP)-induced lung cancer mice model. Histopathological analysis showed that intravenous injection of Cet-DTX NP to mice carrying lung cancer greatly reduced tumour development and proliferation. Comparing Cet-DTX NP to free drug and unconjugated nanoparticles, it also had negligible side effects and improved survival rates. Therefore, Cet-DTX NPs present a promising active targeting carrier for lung tumour-NSCLC-selective treatment.

Cetuximab-conjugated PLGA nanoparticles as a prospective targeting therapeutics for non-small cell lung cancer