In vitro evaluation of the genotoxicity of poly(anhydride) nanoparticles designed for oral drug delivery

Publication date: 15 May 2017 Source:International Journal of Pharmaceutics, Volume 523, Issue 1 Author(s): T. Iglesias, M. Dusinska, N. El Yamani, J.M. Irache, A. Azqueta, A. López de Cerain In the last years, the development of nanomaterials has significantly increased due to the immense variety of potential applications in technological sectors, such as medicine, pharmacy and food safety. Focusing on the nanodevices for oral drug delivery, poly(anhydride) nanoparticles have received extensive attention due to their unique properties, such as their capability to develop intense adhesive interactions within the gut mucosa, their modifiable surface and their biodegradable and easy-to-produce profile. However, current knowledge of the possible adverse health effects as well as, toxicological information, is still exceedingly limited. Thus, we investigated the capacity of two poly(anhydride) nanoparticles, Gantrez® AN 119-NP (GN-NP) and Gantrez® AN 119 covered with mannosamine (GN-MA-NP), and their main bulk material (Gantrez® AN 119-Polymer), to induce DNA damage and thymidine kinase (TK+/−) mutations in L5178Y TK+/− mouse lymphoma cells after 24h of exposure. The results showed that GN-NP, GN-MA-NP and their polymer did not induce DNA strand breaks or oxidative damage at concentrations ranging from 7.4 to 600μg/mL. Besides, the mutagenic potential of these nanoparticles and their polymer revealed no significant or biologically relevant gene mutation induction...
Source: International Journal of Pharmaceutics - Category: Drugs & Pharmacology Source Type: research