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An advanced intestine-on-chip model recreating epithelial 3D organotypic villus-like and crypt-like structures has been developed. The immunocompetent model includes Human Umbilical Vein Endothelial Cells (HUVEC), Caco-2 intestinal epithelial cells, tissue-resident macrophages, and dendritic cells, which self-organize within the tissue, mirroring characteristics of the human intestinal mucosa. A unique aspect of this platform is its capacity to integrate circulating human primary immune cells, enhancing physiological relevance. The model is designed to investigate the intestinal immune system's response to bacterial and fungal colonization and infection. Due to its enlarged cavity size, the model offers diverse functional readouts such as permeation assays, cytokine release, and immune cell infiltration, and is compatible with immunofluorescence measurement of 3D structures formed by the epithelial cell layer. It hereby provides comprehensive insights into cell differentiation and function. The intestine-on-chip platform has demonstrated its potential in elucidating complex interactions between surrogates of a living microbiota and human host tissue within a microphysiological perfused biochip platform.
Feile et al. (Fri,) studied this question.
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