Abstract
Background: Vorinostat (VRS), a histone deacetylases inhibitor, has significant cytotoxic potential in a large number of human cancer cell lines. Objective: To clarify its promising anticancer potential and to improve its drawback related to physical properties and in vivo performance of VRS. Methods: VRS was successfully incorporated into nanostructured lipid carriers (NLCs) by the hot microemulsion method using sonication following a homogenization technique. Results: After the optimization process, VRS-loaded NLCs (VRS-NLCs) were obtained as ideal quality nanoparticles with a spherical shape, small size (∼150 nm), negative charge (∼−22 mV), and narrow size distribution. In addition, the high entrapment efficiency (∼99%) and sustained drug release profile were recorded. Cytotoxicity study in three different cell lines (A549, MCF-7, and SCC-7) demonstrated higher cytotoxicity of VRS-NLCs than free drug. Finally, the AUC of VRS (118.16 ± 17.35 µgh/mL) was enhanced ∼4.4 times compared with that of free drug (27.03 ± 3.25 µgh/mL). Conclusion: These results suggest the potential of NLCs as an oral delivery system for enhancement of cellular uptake, in vitro cytotoxicity in cancer cell lines and the oral bioavailability of VRS.
| Original language | English |
|---|---|
| Pages (from-to) | 1335-1343 |
| Number of pages | 9 |
| Journal | Drug Delivery |
| Volume | 23 |
| Issue number | 4 |
| DOIs | |
| State | Published - 3 May 2016 |
| Externally published | Yes |
Keywords
- Histone deacetylases inhibitor
- nanostructured lipid carriers
- oral bioavailability
- vorinostat