Toxicity Evaluation of Choline Ionic Liquid-Based Nanocarriers of Pharmaceutical Agent For Lung Treatment With Extra Antitumor Activity

Abstract

In vitro cytotoxicity evaluation of linear copolymer (LC) containing choline ionic liquid units and its conjugates with an antibacterial drug in anionic form, i.e. p-aminosalicylate (LC_PAS), clavulanate (LC_CLV), or piperacillin (LC_PIP) was carried out. These systems were tested against normal: human bronchial epithelial cells (BEAS-2B), and cancers: adenocarcinoma human alveolar basal epithelial cells (A549), and human non-small cell lung carcinoma cell line (H1299). Cells viability, after linear copolymer LC and their conjugates addition for 72 hours, was measured at concentrations range of 3.125‑100 μg/mL. The MTT test allowed the designation of IC50 index, which was higher for BEAS-2B, and significantly lower in the case of cancer cell lines. The cytometric analyzes, i.e. Annexin-V FITC apoptosis assay and cell cycle analysis as well as gene expression measurements for interleukins IL6 and IL8 were carried out, and showed pro-inflammatory activity of tested compounds towards cancer cells, while it was not observed against normal cell line. In summary, the anticancer property of linear copolymers with antibacterial drugs was shown.