The Influence of Nanomaterial Calcium Phosphate/poly-(dl-lactide-co-glycolide) on Proliferation and Adherence of HeLa Cells
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Nanomaterials are nowadays widely used in various fields of biomedicine. Before the application of biomaterials they have to be tested and fulfill some criteria. The first tests that should be performed after synthesis of some new nanomaterial with potential application in biomedical fields are biocompatibility tests. The aim of this study was to examine the influence of nanomaterial calcium phosphate/poly-(dl-lactide-co-glycolide) (CP/PLGA) on proliferation and adherence of HeLa cells in culture. For both proliferation and adherence examination, cells were treated with suspension of nanomaterial CP/PLGA at concentrations 5, 50 and 500 µg/mL, made in cell culture medium. There were four different types of treatment: (1) cells incubated with CP/PLGA for 3 days; (2) cells incubated with CP/PLGA for 6 days; (3) cells incubated first with CP/PLGA for 3 days and then for the next 3 days with medium and (4) cells incubated first with medium for 3 days and then for the next 3 days with CP/PLGA. Three days after incubation of HeLa cells with different concentrations of CP/PLGA nanoparticles’ suspension, the concentration of 5 µg/mL had mild inhibitory effect on proliferation. Increasing CP/PLGA concentration, there was stimulatory effect on cells’ proliferation. With prolonged incubation period, this dose dependence is lost. The highest adherence of HeLa cells was observed when cells were incubated with the highest examined concentration of CP/PLGA suspension, in both 3-day and 6-day incubation period. Based on the results obtained in our study, we can conclude that the effect of the suspension of nanomaterial CP/PLGA on proliferation and adherence of HeLa cells depends on the duration of incubation with the cells as well as the material concentration and type of the treatment.
KeywordsNanomaterial CP/PLGA Hela cells Proliferation Adherence
This study was supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia (Project Grant No. III 41017).
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