PMID- 24092974 OWN - NLM STAT- MEDLINE DCOM- 20140404 LR - 20211021 IS - 1178-2013 (Electronic) IS - 1176-9114 (Print) IS - 1176-9114 (Linking) VI - 8 DP - 2013 TI - Multinucleation and cell dysfunction induced by amorphous silica nanoparticles in an L-02 human hepatic cell line. PG - 3533-41 LID - 10.2147/IJN.S46732 [doi] AB - Silica nanoparticles (SNPs) are one of the most important nanomaterials, and have been widely used in a variety of fields. Therefore, their effects on human health and the environment have been addressed in a number of studies. In this work, the effects of amorphous SNPs were investigated with regard to multinucleation in L-02 human hepatic cells. Our results show that L-02 cells had an abnormally high incidence of multinucleation upon exposure to silica, that increased in a dose-dependent manner. Propidium iodide staining showed that multinucleated cells were arrested in G2/M phase of the cell cycle. Increased multinucleation in L-02 cells was associated with increased generation of cellular reactive oxygen species and mitochondrial damage on flow cytometry and confocal microscopy, which might have led to failure of cytokinesis in these cells. Further, SNPs inhibited cell growth and induced apoptosis in exposed cells. Taken together, our findings demonstrate that multinucleation in L-02 human hepatic cells might be a failure to undergo cytokinesis or cell fusion in response to SNPs, and the increase in cellular reactive oxygen species could be responsible for the apoptosis seen in both mononuclear cells and multinucleated cells. FAU - Wang, Wen AU - Wang W AD - School of Public Health, Capital Medical University, Beijing ; Beijing Key Laboratory of Environmental Toxicology, Capital Medical University, Beijing ; School of Public Health, Jilin University, Changchun, Jilin. FAU - Li, Yang AU - Li Y FAU - Liu, Xiaomei AU - Liu X FAU - Jin, Minghua AU - Jin M FAU - Du, Haiying AU - Du H FAU - Liu, Ying AU - Liu Y FAU - Huang, Peili AU - Huang P FAU - Zhou, Xianqing AU - Zhou X FAU - Yuan, Lan AU - Yuan L FAU - Sun, Zhiwei AU - Sun Z LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130919 PL - New Zealand TA - Int J Nanomedicine JT - International journal of nanomedicine JID - 101263847 RN - 0 (Reactive Oxygen Species) RN - 3M4G523W1G (Silver) SB - IM MH - Apoptosis/drug effects/physiology MH - Cell Cycle/drug effects/*physiology MH - Cell Line MH - Cell Survival/drug effects/physiology MH - Hepatocytes/drug effects/*pathology/*physiology MH - Humans MH - Metal Nanoparticles/*adverse effects MH - Particle Size MH - Reactive Oxygen Species/*metabolism MH - Silver/*adverse effects PMC - PMC3787934 OTO - NOTNLM OT - apoptosis OT - cell cycle OT - cell dysfunction OT - human hepatic cell L-02 OT - multinucleation OT - silica nanoparticles EDAT- 2013/10/05 06:00 MHDA- 2014/04/05 06:00 PMCR- 2013/09/19 CRDT- 2013/10/05 06:00 PHST- 2013/10/05 06:00 [entrez] PHST- 2013/10/05 06:00 [pubmed] PHST- 2014/04/05 06:00 [medline] PHST- 2013/09/19 00:00 [pmc-release] AID - ijn-8-3533 [pii] AID - 10.2147/IJN.S46732 [doi] PST - ppublish SO - Int J Nanomedicine. 2013;8:3533-41. doi: 10.2147/IJN.S46732. Epub 2013 Sep 19.