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2015 ; 5
(ä): 13708
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Robust bioengineered 3D functional human intestinal epithelium
#MMPMID26374193
Chen Y
; Lin Y
; Davis KM
; Wang Q
; Rnjak-Kovacina J
; Li C
; Isberg RR
; Kumamoto CA
; Mecsas J
; Kaplan DL
Sci Rep
2015[Sep]; 5
(ä): 13708
PMID26374193
show ga
Intestinal functions are central to human physiology, health and disease. Options
to study these functions with direct relevance to the human condition remain
severely limited when using conventional cell cultures, microfluidic systems,
organoids, animal surrogates or human studies. To replicate in vitro the tissue
architecture and microenvironments of native intestine, we developed a 3D porous
protein scaffolding system, containing a geometrically-engineered hollow lumen,
with adaptability to both large and small intestines. These intestinal tissues
demonstrated representative human responses by permitting continuous accumulation
of mucous secretions on the epithelial surface, establishing low oxygen tension
in the lumen, and interacting with gut-colonizing bacteria. The newly developed
3D intestine model enabled months-long sustained access to these intestinal
functions in vitro, readily integrable with a multitude of different organ mimics
and will therefore ensure a reliable ex vivo tissue system for studies in a broad
context of human intestinal diseases and treatments.