Multilayer-Coated Liquid Crystalline Nanoparticles for Effective Sorafenib Delivery to Hepatocellular Carcinoma

ACS Applied Materials & Interfaces
Raj Kumar ThapaJong Oh Kim

Abstract

Hepatocellular carcinoma is one of the most common cancers in adults and develops due to activation of oncogenes and inactivation of tumor suppressor genes. Sorafenib (SF) is a U.S. Food and Drug Administration (FDA) approved drug for the treatment of hepatocellular carcinoma. However, its clinical use is limited by its poor aqueous solubility and undesirable side effects. Monoolein-based liquid crystalline nanoparticles (LCN) are self-assembled structures that have been determined as promising drug-delivery vehicles. Therefore, the main aim of this study was to prepare layer-by-layer (LbL) polymer-assembled SF-loaded LCNs (LbL-LCN/SF) for effective delivery of SF to hepatocellular carcinoma. Results revealed that LbL-LCN/SF presented optimum particle size (∼165 nm) and polydispersity index (PDI, ∼0.14) with appropriate polymer layer assembly confirmed by transmission electron microscopy (TEM) and atomic force microscopy (AFM). Furthermore, LbL-LCN/SF effectively controlled burst release and exhibited pH-sensitive release of SF, thereby increasing drug release in the acidic microenvironment of tumor cells. Compared to free SF and bare LCN, the hemolytic activity of LbL-LCN/SF was significantly reduced (p<0.01). Interestingly, L...Continue Reading

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