To accurately reveal the scenario and mecahnism of gastrointestinal diseases, the establishment of in vitro models of intestinal diseases and drug screening platforms have become the focus of attention. Over the past few decades, animal models and immortalized cell lines have provided valuable but limited insights into gastrointestinal research. In recent years, the development of intestinal organoid culture system has revolutionized in vitro studies of intestinal diseases. Intestinal organoids are derived from self-renewal and self-organization intestinal stem cells (ISCs), which can replicate the genetic characteristics, functions, and structures of the original tissues. Consequently, they provide new stragety for studying various intestinal diseases in vitro. In the review, we will discuss the culture techniques of intestinal organoids and describe the use of intestinal organoids as research tools for intestinal diseases. The role of intestinal epithelial cells (IECs) played in the pathogenesis of inflammatory bowel diseases (IBD) and the treatment of intestinal epithelial dysfunction will be highlighted. Besides, we review the current knowledge on using intestinal organoids as models to study the pathogenesis of IBD caused by epithelial dysfunction and to develop new therapeutic approaches. Finally, we shed light on the current challenges of using intestinal organoids as in vitro models.
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http://dx.doi.org/10.1007/s12015-023-10651-w | DOI Listing |
J Leukoc Biol
January 2025
Univ. Lille, Inserm, CHU Lille, U1286 - INFINITE - Institute for Translational Research in Inflammation, F-59000 Lille, France.
The gastrointestinal tract is a remarkable example of complex biology, with a constant dialogue between the intestinal epithelium, in close contact with the microbiota, and the immune cells that protect the gut from infection. Organoids have revolutionized our approach to modelling the intestinal cellular compartment and have opened new avenues for unravelling the mechanisms involved in intestinal homeostasis and chronic pathogenesis such as inflammatory bowel disease. To date, few models have been established to explore the role of the colon, which is however the main site of inflammation in ulcerative colitis (UC).
View Article and Find Full Text PDFBiol Open
January 2025
Department of Clinical Pharmacy, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya 467-8603, Japan.
Reproducing intestinal cells in vitro is important in pharmaceutical research and drug development. Caco-2 cells and human iPS cell-derived intestinal epithelial cells are widely used, but few evaluation systems can mimic the complex crypt-villus-like structure. We attempted to generate intestinal cells mimicking the three-dimensional structure from human iPS cells.
View Article and Find Full Text PDFJ Crohns Colitis
January 2025
Medical School of Nanjing University, Department of General Surgery, Jinling Hospital, Nanjing 210002, China.
Background: Impaired intestinal epithelial barrier has been considered to be associated with an increasing variety of gastrointestinal diseases, especially inflammatory bowel disease (IBD) encompassing Crohn's disease (CD) and ulcerative colitis (UC). We aimed to investigate the role of Gasdermin B (GSDMB) in modulating intestinal epithelial barrier integrity and proposed a promising therapeutic strategy.
Methods: GSDMB expression was evaluated in adult CD samples by molecular biology means and single-cell transcriptomes.
WNT2B is Wnt ligand which is able to support intestinal stem cells (ISC) in culture and support the intestinal epithelium in vivo. We have previously shown that WNT2B is critical for resistance to colitis, but not small intestinal injury, in the adult mouse. WNT2B is thought to coordinate with WNT3 in supporting ISC, and we have also shown that WNT3 expression is low in the early postnatal ileum in mice.
View Article and Find Full Text PDFPediatr Surg Int
January 2025
Department of General and Thoracic Surgery, The Hospital for Sick Children, University of Toronto, 1526-555 University Ave, Toronto, ON, M5G 1X8, Canada.
Purpose: Necrotizing enterocolitis (NEC) majorly affects premature infants, causing not only necrosis and inflammation but also feeding intolerance and gastrointestinal dysmotility, hinting at gut hormone secretion impairment. Particularly critical is the gestation period before 26 weeks where intestinal hormonal activity is partially developed, rendering preterm neonates highly susceptible to NEC. Emerging evidence suggests a role of gut hormones, especially glucagon-like peptides (GLP) in ileum development.
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