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dc.contributor.authorWare, Matthew J.en
dc.contributor.authorGodin, Bianaen
dc.contributor.authorSingh, Neenuen
dc.contributor.authorMajithia, Ravishen
dc.contributor.authorShamsudeen, Sabeelen
dc.contributor.authorSerda, Rita E.en
dc.contributor.authorMeissner, Kenith E.en
dc.contributor.authorRees, Paulen
dc.contributor.authorSummers, Huw D.en
dc.date.accessioned2017-10-30T12:32:37Z
dc.date.available2017-10-30T12:32:37Z
dc.date.issued2014-07-13
dc.identifier.citationWare, M.J. et al. (2014) Analysis of the Influence of Cell Heterogeneity on Nanoparticle Dose Response. ACS Nano, 8 (7), pp. 6693-6700en
dc.identifier.urihttp://hdl.handle.net/2086/14740
dc.descriptionopen access articleen
dc.description.abstractUnderstanding the effect of variability in the interaction of individual cells with nanoparticles on the overall response of the cell population to a nanoagent is a fundamental challenge in bionanotechnology. Here, we show that the technique of time-resolved, high-throughput microscopy can be used in this endeavor. Mass measurement with single-cell resolution provides statistically robust assessments of cell heterogeneity, while the addition of a temporal element allows assessment of separate processes leading to deconvolution of the effects of particle supply and biological response. We provide a specific demonstration of the approach, in vitro, through time-resolved measurement of fibroblast cell (HFF-1) death caused by exposure to cationic nanoparticles. The results show that heterogeneity in cell area is the major source of variability with area-dependent nanoparticle capture rates determining the time of cell death and hence the form of the exposure–response characteristic. Moreover, due to the particulate nature of the nanoparticle suspension, there is a reduction in the particle concentration over the course of the experiment, eventually causing saturation in the level of measured biological outcome. A generalized mathematical description of the system is proposed, based on a simple model of particle depletion from a finite supply reservoir. This captures the essential aspects of the nanoparticle–cell interaction dynamics and accurately predicts the population exposure–response curves from individual cell heterogeneity distributions.en
dc.language.isoenen
dc.publisherACS Publicationsen
dc.titleAnalysis of the influence of cell heterogeneity on nanoparticle dose response.en
dc.title.alternativeACS Nanoen
dc.typeArticleen
dc.identifier.doihttps://dx.doi.org/10.1021/nn502356f
dc.peerreviewedYesen
dc.explorer.multimediaNoen
dc.funderEPSRC (Engineering and Physical Sciences Research Council)en
dc.funderNIHen
dc.projectidEP/H008683/1en
dc.projectidU54CA143837en
dc.projectidU54CA151668-01en
dc.cclicenceCC BYen
dc.date.acceptance2014en
dc.researchinstituteLeicester Institute for Pharmaceutical Innovation - From Molecules to Practice (LIPI)en


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