Results 51 to 60 of about 21,783 (297)

Opportunities for organoids as new models of aging. [PDF]

open access: yes, 2018
The biology of aging is challenging to study, particularly in humans. As a result, model organisms are used to approximate the physiological context of aging in humans. However, the best model organisms remain expensive and time-consuming to use.
Antonica   +145 more
core   +2 more sources

Opposing effects of TIGAR- and RAC1-derived ROS on Wnt-driven proliferation in the mouse intestine [PDF]

open access: yes, 2016
Reactive oxygen species (ROS) participate in numerous cell responses, including proliferation, DNA damage, and cell death. Based on these disparate activities, both promotion and inhibition of ROS have been proposed for cancer therapy.
Blyth, Karen   +6 more
core   +1 more source

Intestinal Crypt Organoids as Experimental Models [PDF]

open access: yes, 2015
When it comes to studying the effect of food bioactives on gut health, one of the essential steps that needs to be assessed is characterizing specific effects of the bioactives on the physical barrier of the lumen, the gastrointestinal tissue. In addition to studying the effects on transport function (e.g.
Lukovac, S., Roeselers, G.
openaire   +2 more sources

Rho-A prenylation and signaling link epithelial homeostasis to intestinal inflammation [PDF]

open access: yes, 2016
Although defects in intestinal barrier function are discussed as a key pathogenic factor in patients with inflammatory bowel diseases (IBD), the molecular pathways driving disease-specific alterations of intestinal epithelial cells (IECs) are largely ...
Alastair J.M. Watson   +27 more
core   +1 more source

Functional characteristics of a pig 2D intestinal organoid model as an in vitro platform for nutritional studies

open access: yesJournal of Animal Science and Technology
Intestinal epithelial cell lines have been widely used in the field of biomedical and livestock research, and recently, the use of organoid systems has been attempted.
Sang Seok Joo   +6 more
doaj   +1 more source

Human Organoids for Predictive Toxicology Research and Drug Development

open access: yesFrontiers in Genetics, 2021
Organoids are three-dimensional structures fabricated in vitro from pluripotent stem cells or adult tissue stem cells via a process of self-organization that results in the formation of organ-specific cell types.
Toshikatsu Matsui, Tadahiro Shinozawa
doaj   +1 more source

Healing of Human Intestinal Organoids [PDF]

open access: yesBiophysical Journal, 2016
Organoids are millimeter-scale tissues that replicate the structure and function of naturally formed organs. These tissues are grown in the lab through the directed differentiation of stem cells and have potential uses in biotechnology. Human intestinal organoids (HIO's) serve as a model system for the small intestine and offer potential in ...
Berglund, Emily A.   +4 more
openaire   +1 more source

Colon organoid formation and cryptogenesis are stimulated by growth factors secreted from myofibroblasts.

open access: yesPLoS ONE, 2018
Although small intestinal epithelial stem cells form crypts when using intestinal culture conditions, colon stem cells usually form colonospheres. Colon mesenchymal cell feeder layers can stimulate colon crypts to form organoids and produce crypts.
Hon Yan Kelvin Yip   +3 more
doaj   +1 more source

Organoid modelling identifies that DACH1 functions as a tumour promoter in colorectal cancer by modulating BMP signalling

open access: yesEBioMedicine, 2020
Background: Dachshund homologue 1 (DACH1) is highly expressed in LGR5+ intestinal stem cells and colorectal tumours. However, the roles of DACH1 in intestinal cell stemness and colorectal tumorigenesis remain largely undefined.
Xiang Hu   +17 more
doaj   +1 more source

Polarised epithelial monolayers of the gastric mucosa reveal insights into mucosal homeostasis and defence against infection [PDF]

open access: yes, 2018
Objective Helicobacter pylori causes life-long colonisation of the gastric mucosa, leading to chronic inflammation with increased risk of gastric cancer.
Berger, H.   +10 more
core   +3 more sources

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