The first inorganic mitogens: Cerium oxide and cerium fluoride nanoparticles stimulate planarian regeneration via neoblastic activation
| Autor: | Alexander E. Baranchikov, Vladimir Ivanov, Olga Ermakova, A. B. Shcherbakov, Nelli R. Popova, A.L. Popov, Olga Ivanova, Kristina A. Kamenskikh, Artem M. Ermakov, T. O. Shekunova |
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| Rok vydání: | 2019 |
| Předmět: |
Cerium oxide
Materials science Mitosis chemistry.chemical_element Bioengineering 02 engineering and technology 010402 general chemistry 01 natural sciences Genomic Instability Biomaterials Fluorides Schmidtea mediterranea Toxicity Tests Animals Regeneration chemistry.chemical_classification Reactive oxygen species Cell Death biology Regeneration (biology) Cerium DNA Planarians 021001 nanoscience & nanotechnology biology.organism_classification Planaria 0104 chemical sciences Cell biology Gene Expression Regulation chemistry Inorganic Chemicals Mechanics of Materials Planarian Nanoparticles Mitogens 0210 nano-technology Head Blastema Mutagens |
| Zdroj: | Materials Science and Engineering: C. 104:109924 |
| ISSN: | 0928-4931 |
| DOI: | 10.1016/j.msec.2019.109924 |
| Popis: | We report the first experimental evidence for the mitogenic action of cerium(IV) oxide and cerium(III) fluoride nanoparticles (CONs and CFNs) on the regeneration of a whole organism – freshwater flatworms Schmidtea mediterranea (planarian). Both types of cerium-containing nanoparticles are shown to be a highly potent mitogen for planaria. Both CONs and CFNs, in micro- and nanomolar concentrations, markedly accelerate planarian blastema growth, due to the enhancement of cellular proliferation, causing an increase in the mitotic index and in the quantity of blastema cells in regenerating planaria. CONs provided maximum activity at concentrations which were two orders of magnitude lower than those for CeF3. The valence state of cerium in cerium-containing nanoparticles plays a significant role in the planarian regeneration mechanism: CeO2 nanoparticles containing predominantly Ce4+ species presumably scavenge wound induced reactive oxygen species and moderately activate gene expression processes, while the regenerative action of CeF3 nanoparticles containing only Ce3+ species is manifested in the pronounced expression of the genes involved in cell division, differentiation and migration. This is the first report on the effect of cerium-containing nanoparticles on tissue regeneration in vivo, further revealing the mechanisms of their biological action, which enhances the possibility of their use in cellular technologies. |
| Databáze: | OpenAIRE |
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