Multipurpose efficacy of ZnO nanoparticles coated by the crustacean immune molecule beta-1, 3-glucan binding protein: Toxicity on HepG2 liver cancer cells and bacterial pathogens

作者：Iswarya Arokiadhas; Vaseeharan Baskaralingam^*; Anjugam Mahalingam; Ashokkumar Balasubramaniem; Govindarajan Marimuthu; Alharbi Naiyf S; Kadaikunnan Shine; Khaled Jamal M; Benelli Giovanni

来源：Colloids and Surfaces B: Biointerfaces , 2017, 158: 257-269.

DOI：10.1016/j.colsurfb.2017.06.035

• Zinc oxide nanoparticies
• Paratelphusa hydrodromus
• Protein leakage
• Antibiofilm
• Cytotoxicity

The effective treatment of cancer and bacterial pathogens are two key challenges in modern nanomedicine. Here, zinc oxide nanoparticles (ZnO NPs) were fabricated using the crustacean immune molecule beta-1, 3- glucan binding protein (Ph beta-GBP, 100 kDa) purified from the heamolymph of Paratelphusa hydrodromus. beta-GBP coated zinc oxide nanoparticles (Ph beta-GBP-ZnO NPs) were characterized by UV-vis spectroscopy, X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and high resolution-transmission electron microscopy (HR-TEM) analyses. Ph beta-GBP-ZnO NPs inhibited the growth of Staphylococcus aureus and Proteus vulgaris. Protein and nucleic acid leakage assays showed that Ph beta-GBP-ZnO NPs facilitate membrane permeability leading to cell death. The antibacterial activity of Ph beta-GBP-ZnO NPs was due to the high level of reactive oxygen species (ROS) release from bacterial cells post-treatment with 75 mu g/mL of Ph beta-GBP-ZnO NPs. Confocal laser scanning microscopy pointed out that biofilm thickness was highly reduced post-treatment with nanoparticles. Cytotoxicity on human liver carcinoma (HepG2) cells highlighted that 75 mu g/mL of Ph beta-GBP-ZnO NPs inhibited viability of HepG2 cells. Phase contrast microscopy showed key morphological changes of HepG2 cells post-treatment with Ph beta-GBP-ZnO NPs. Overall, Ph beta-GBP-ZnO NPs can be further considered for the development of novel drugs against microbial pathogens and HepG2 cells.

• 出版日期2017-10-1