Browse by author
Lookup NU author(s): Dr Helen Swalwell, Professor Mark Birch-MachinORCiD
Full text for this publication is not currently held within this repository. Alternative links are provided below where available.
Nanoparticles are increasingly used in medicine and it is important to understand their targeted and non-targeted effects. Previously, we showed that nanoparticles can cause DNA damage to cells cultured below a cellular barrier without crossing the barrier. Here, we show that this indirect DNA damage caused by nanoparticles depends on the thickness of the cellular barrier and, is mediated by signalling through gap junction proteins between cells. Indirect damage was seen in both trophoblast and corneal barriers and, signalling occurred only in bilayered/multilayered, but not monolayered, barriers. Indirect toxicity was also observed in mice and in ex vivo cultures of the human placenta. If the importance of barrier thickness in signalling is a general feature for all types of barriers, our results may offer a way to limit the adverse effects of nanoparticle exposure and offer new therapeutic approaches.
Author(s): Sood A, Salih S, Roh D, Lacharme-Lora L, Parry M, Hardiman B, Keehan R, Grummer R, Winterhager E, Andrews PW, Abbott C, Forbes K, Westwood M, Aplin JD, Ingham E, Papageoriou I, Berry M, Liu J, Dick AD, Garland RJ, Williams N, Singh R, Simon AK, Lewis M, Ham J, Roger L, Baird DM, Crompton LA, Caldwell MA, Swalwell H, Birch-Machin MA, Lopez-Castejon G, Randall A, Lin H, Suleiman MS, Evans WH, Newson R, Case CP
Publication type: Article
Publication status: Published
Journal: Nature Nanotechnology
Year: 2011
Volume: 6
Issue: 12
Pages: 824-833
Print publication date: 06/11/2011
ISSN (print): 1748-3387
ISSN (electronic): 1748-3395
Publisher: Nature Publishing Group
URL: http://dx.doi.org/10.1038/nnano.2011.188
DOI: 10.1038/nnano.2011.188
Notes: Made a key material contribution to the successful acceptance of the paper i.e. designing and performing key experiments on mitochondrial DNA that the reveiwers requested in order for the paper to be accepted (have e-mail proof of this from correpsonding author Dr CASE in Bristol). I am the only contributor from Newcastle University and the only mitochondrial researcher.
Altmetrics provided by Altmetric
