2019
DOI: 10.1016/j.jconrel.2019.06.026
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Intravital microscopy reveals a novel mechanism of nanoparticles excretion in kidney

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Cited by 45 publications
(30 citation statements)
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“…Intravital imaging recorded NP transport from peritubular capillaries to the basal compartment of tubular cells, and subsequent excretion to the lumen within 60 min after systemic administration. The results suggest that translocation through the peritubular endothelium to tubular epithelial cells is an alternative mechanism of renal clearance, enabling excretion of NPs above the glomerular cut-off size [48] . The specific uptake of large diameter (350–400 nm) polymer-based mesoscale nanoparticles (MNPs) that targeted the renal proximal tubular epithelial cells has also been observed by IVM [49] .…”
Section: Intravital Imaging To Answer Fundamental Questions About Nanmentioning
confidence: 90%
See 1 more Smart Citation
“…Intravital imaging recorded NP transport from peritubular capillaries to the basal compartment of tubular cells, and subsequent excretion to the lumen within 60 min after systemic administration. The results suggest that translocation through the peritubular endothelium to tubular epithelial cells is an alternative mechanism of renal clearance, enabling excretion of NPs above the glomerular cut-off size [48] . The specific uptake of large diameter (350–400 nm) polymer-based mesoscale nanoparticles (MNPs) that targeted the renal proximal tubular epithelial cells has also been observed by IVM [49] .…”
Section: Intravital Imaging To Answer Fundamental Questions About Nanmentioning
confidence: 90%
“…), Tumour endothelial cells (CD31)-Neutrophils (Ly6G) [53] SiO2 nanoparticles Inorganic Pacific blue Spherical 70 PEG n/a Macrophages: within minutes Scavenger endothelial cells: with a time scale of hours in transgenic zebrafish embryos( fli1a:eGFP/mpeg1:mCherry ) [54] Amorphous silica nanoparticles Inorganic Red (569 / 585) Spherical 50 n/a Negative 2 min, 1 h after instillation, alveolar epithelial cells [47] Fe 3 O 4 nanoparticles Inorganic Cy5 Cube, Cluster 140 PEG Negative Within 60 min (i.v. ), Renal tubular epithelial cells [48] PLGA based nanoparticles Organic Cy5 Spherical 347.6 ± 21.0 PEG −19.0 ± 0.3 72 h after injection (i.v. ), Renal tubular epithelial cells [49] Ferumoxytol modified nanoparticles Inorganic FITC Spherical 25.33 33 ± ± 1.70 DEVD peptide conjugated, PEG −3.69 ± −1.29 Day1-Day 6 Labelling mouse mesenchymal stem cells and pig mesenchymal stem cells in vitro [50] Peptide and aptamer dual-functionalized nanoparticles Organic DiD, DiR n/a 106~122 K237 peptide, Ep23 aptamer modified −25.4~−31.4 Within 30 min, Circulating tumour cells (CTC) [52] Cowpea mosaic virus (CPMV) nanoparticles Organic Alexa Fluor 647 Spherical 30 ...…”
Section: Intravital Imaging To Answer Fundamental Questions About Nanmentioning
confidence: 99%
“…IO-cubes and IO-clusters were synthetized and functionalized as previously described [64,65]. The physicochemical properties of the IO-cubes and IO-clusters investigated in this study are summarized in Figs.…”
Section: Characterization Of the Nanoparticlesmentioning
confidence: 99%
“…In particular, reports show that 10nm diameter silver nanoparticles are enriched in several organs (e.g., liver, spleen, kidney, testis, thymus, heart, lung and brain, etc.). Larger nanoparticles are specific to blood, liver, and spleen, implicating that 2-6 nm diameter silver nanoparticles are more evenly distributed and less enriched in tissues [32][33][34] . In vivo, the nanoparticles continuously induce inflammation and other toxic reactions.…”
Section: Introductionmentioning
confidence: 99%
“…The renal filtration threshold of nanoparticle size is generally 5.5nm. However, there is no report on whether larger nanoparticles are metabolized by the kidney, which may be related to its rigidity [33,[35][36][37] .…”
Section: Introductionmentioning
confidence: 99%