Abstract
Aim: Secondary toxicity of nanoparticles (NPs) in macrophages is a well-known phenomenon. The aim of the study was to investigate the immuneresponse of macrophages after NP treatment. Methods & results: Antituberculosis drugs moxifloxacin and rifampicin were loaded into gelatin and polyisobutyl-cyanoacrylate NPs. The NPs were physicochemical characterized. Cellular immuneresponses and cellular viability were determined. The drug release kinetics vary depending on the type of NP, size and loading capacity. IC50 values of polyisobutyl-cyanoacrylate NPs were lower than for gelatin NPs. NPs treatment induced higher release of Th1 type cytokines compared with free drug. Conclusion: NPs together with chemotherapeutic drugs might be able to trigger an immune response in macrophages. The combined effect might be able to overcome mycobacteria infections.
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