Evaluating the Use of TiO2 Nanoparticles for Toxicity Testing in Pulmonary A549 Cells
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F22%3A39918942" target="_blank" >RIV/00216275:25310/22:39918942 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11150/22:10448550
Result on the web
<a href="https://www.dovepress.com/getfile.php?fileID=83879" target="_blank" >https://www.dovepress.com/getfile.php?fileID=83879</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.2147/IJN.S374955" target="_blank" >10.2147/IJN.S374955</a>
Alternative languages
Result language
angličtina
Original language name
Evaluating the Use of TiO2 Nanoparticles for Toxicity Testing in Pulmonary A549 Cells
Original language description
Purpose: Titanium dioxide nanoparticles, 25 nm in size of crystallites (TiO2 P25), are among the most produced nanomaterials worldwide. The broad use of TiO2 P25 in material science has implied a request to evaluate their biological effects, especially in the lungs. Hence, the pulmonary A549 cell line has been used to estimate the effects of TiO2 P25. However, the reports have provided dissimilar results on caused toxicity. Surprisingly, the physicochemical factors influencing TiO2 P25 action in biological models have not been evaluated in most reports. Thus, the objective of the present study is to characterize the preparation of TiO2 P25 for biological testing in A549 cells and to evaluate their biological effects.Methods: We determined the size and crystallinity of TiO2 P25. We used four techniques for TiO2 P25 dispersion. We estimated the colloid stability of TiO2 P25 in distilled water, isotonic NaCl solution, and cell culture medium. We applied the optimal dispersion conditions for testing the biological effects of TiO2 P25 (0-100 mu g.mL-1) in A549 cells using biochemical assays (dehydrogenase activity, glutathione levels) and microscopy.Results: We found that the use of fetal bovine serum in culture medium is essential to maintain sufficient colloid stability of dispersed TiO2 P25. Under these conditions, TiO2 P25 were unable to induce a significant impairment of A549 cells according to the results of biochemical and microscopy evaluations. When the defined parameters for the use of TiO2 P25 in A549 cells were met, similar results on the biological effects of TiO2 P25 were obtained in two independent cell laboratories.Conclusion: We optimized the experimental conditions of TiO2 P25 preparation for toxicity testing in A549 cells. The results presented here on TiO2 P25-induced cellular effects are reproducible. Therefore, our results can be helpful for other researchers using TiO2 P25 as a reference material.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10601 - Cell biology
Result continuities
Project
<a href="/en/project/EF17_048%2F0007421" target="_blank" >EF17_048/0007421: Strengthening interdisciplinary cooperation in research of nanomaterials and their effects on living organisms (NANOBIO)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Nanomedicine
ISSN
1178-2013
e-ISSN
1178-2013
Volume of the periodical
17
Issue of the periodical within the volume
2022
Country of publishing house
NZ - NEW ZEALAND
Number of pages
15
Pages from-to
4211-4225
UT code for WoS article
000858963700001
EID of the result in the Scopus database
2-s2.0-85138141201