PMID- 22459196 OWN - NLM STAT- MEDLINE DCOM- 20120809 LR - 20161125 IS - 1878-5905 (Electronic) IS - 0142-9612 (Linking) VI - 33 IP - 18 DP - 2012 Jun TI - The effects of sub-lethal concentrations of silver nanoparticles on inflammatory and stress genes in human macrophages using cDNA microarray analysis. PG - 4690-9 LID - 10.1016/j.biomaterials.2012.03.006 [doi] AB - Because of the limited information on size-dependent particle-mediated effects, the present study was conducted to determine if the changes in induced protein expression between 5 nm silver nanoparticles and 100 nm particles after exposure to sub-lethal concentrations. A total of 28,000 cDNA profiles were screened using 5 nm silver nanoparticles and 100 nm silver nanoparticles in a macrophage cell line. Based on results obtained from cDNA microarray we also assessed protein levels of hemeoxygenase-1 (HO-1), heat shock protein-70 (HSP-70) and interleukin-8 (IL-8), which were shown to significantly increase. Together with results obtained using N-acetylcystein (NAC), we were able to clearly show that low level and early stage exposure to 5 nm silver nanoparticles, but not 100 nm, induces expression of IL-8 as well as stress genes against reactive oxygen species (ROS). Therefore, we provide important data to understand and identify the early effects of silver nanoparticles on the immune system. CI - Copyright (c) 2012 Elsevier Ltd. All rights reserved. FAU - Lim, Dae-Hyoun AU - Lim DH AD - Department of Microbiology, Brain Korea 21 Project for Medical Science, Institute for Immunology and Immunological Diseases, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea. FAU - Jang, Jiyoung AU - Jang J FAU - Kim, Seungjae AU - Kim S FAU - Kang, Taegyeong AU - Kang T FAU - Lee, Kangtaek AU - Lee K FAU - Choi, In-Hong AU - Choi IH LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120327 PL - Netherlands TA - Biomaterials JT - Biomaterials JID - 8100316 RN - 0 (HSP70 Heat-Shock Proteins) RN - 0 (Interleukin-8) RN - 0 (Reactive Oxygen Species) RN - 3M4G523W1G (Silver) RN - EC 1.14.14.18 (Heme Oxygenase-1) SB - IM MH - Cell Line MH - Cell Survival/drug effects MH - HSP70 Heat-Shock Proteins/metabolism MH - Heme Oxygenase-1/metabolism MH - Humans MH - Interleukin-8/metabolism MH - Macrophages/*drug effects/*metabolism MH - Metal Nanoparticles/adverse effects/chemistry/*therapeutic use/ultrastructure MH - Microscopy, Electron, Transmission MH - Oligonucleotide Array Sequence Analysis/*methods MH - Reactive Oxygen Species/metabolism MH - Real-Time Polymerase Chain Reaction MH - Silver/adverse effects/chemistry/*therapeutic use EDAT- 2012/03/31 06:00 MHDA- 2012/08/10 06:00 CRDT- 2012/03/31 06:00 PHST- 2012/01/27 00:00 [received] PHST- 2012/03/03 00:00 [accepted] PHST- 2012/03/31 06:00 [entrez] PHST- 2012/03/31 06:00 [pubmed] PHST- 2012/08/10 06:00 [medline] AID - S0142-9612(12)00278-5 [pii] AID - 10.1016/j.biomaterials.2012.03.006 [doi] PST - ppublish SO - Biomaterials. 2012 Jun;33(18):4690-9. doi: 10.1016/j.biomaterials.2012.03.006. Epub 2012 Mar 27.