1992
DOI: 10.1016/0378-5173(92)90162-u
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Further histological evidence of the gastrointestinal absorption of polystyrene nanospheres in the rat

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Cited by 119 publications
(37 citation statements)
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“…M cells take up macromolecules, particles and microorganisms by adsorptive endocytosis via clathrin-coated pits and vesicles, fluid phase endocytosis and phagocytosis [28]. Although there has been some controversy in the literature on the extent of particle absorption, there is evidence that particle translocation can occur across enterocytes in the villipart of the intestine [29, 30]. However, the number of particles translocated through these routes is mostly very low because of the low endocytic activity of the enterocytes.…”
Section: Transport Mechanisms In the Gi Tractmentioning
confidence: 99%
“…M cells take up macromolecules, particles and microorganisms by adsorptive endocytosis via clathrin-coated pits and vesicles, fluid phase endocytosis and phagocytosis [28]. Although there has been some controversy in the literature on the extent of particle absorption, there is evidence that particle translocation can occur across enterocytes in the villipart of the intestine [29, 30]. However, the number of particles translocated through these routes is mostly very low because of the low endocytic activity of the enterocytes.…”
Section: Transport Mechanisms In the Gi Tractmentioning
confidence: 99%
“…Either accidental or intentional exposure via oral administration to the GI tract can lead to significant exposures. Efficient uptake of nanoparticles via the GI tract has been well documented in oral feeding studies and gavage studies using particles ranging from 10 nm to 500 nm [122-124]. In these studies nanoparticles translocated through the mucosal lining and epithelial barrier of the intestine and were associated with the GALT (gastroinstetinal associated lymphatic tissue) and circulatory system within as little as 60 minutes time [125].…”
Section: 0 Elements Of a Screening Strategy For Nanomaterialsmentioning
confidence: 99%
“…Le passage des vecteurs particulaires Ă  travers l'Ă©pithĂ©lium intestinal peut se faire par trois voies diffĂ©rentes : la diffusion entre deux cellules Ă©pithĂ©liales adjacentes (voie paracellulaire) [28], l'absorption par les entĂ©rocytes (voie transcellulaire) [29] ou la capture par les cellules M prĂ©sentes dans les tissus lymphoĂŻdes associĂ©s Ă  l'intestin (voie lymphatique) [30] (Figure 2). Suite Ă  ce passage de l'Ă©pithĂ©lium, de nombreuses Ă©tudes montrent que la voie d'absorption prĂ©dominante des systĂšmes particulaires est la voie lymphatique [31] mais que la fraction de …”
Section: L'absorption Intestinale Des Vecteurs Particulairesunclassified