Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Schimpel, C; Passegger, C; Egger, S; Tam-Amersdorfer, C; Strobl, H.
A novel 3D cell culture model to study the human small intestinal immune landscape.
Eur J Immunol. 2023; 53(3):e2250131
Doi: 10.1002/eji.202250131
Web of Science
PubMed
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FullText_MUG
- Führende Autor*innen der Med Uni Graz
- Schimpel Christa
- Co-Autor*innen der Med Uni Graz
- Passegger Christina Angelika
- Strobl Herbert
- Tam-Amersdorfer Carmen
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- Abstract:
- Several subsets of mononuclear phagocytes and DCs (MDC) populate the small intestine (SI), and these cells reportedly exert specialized functions in anti-microbial immunity and tolerance. Given the specialized phenotype of these cells, differing from other MDC family members, including their putative circulating blood precursors, local intestinal factors play key instructive roles in their differentiation. We designed an SI cell culture model composed of three intestinal epithelial cell (IEC) types, including absorptive enterocytes (E cells), antigen delivering microfold (M) cells, and mucus-producing goblet (G) cells plus T lymphocytes and soluble B cell-derived factors. This model was used to study the differentiation fate of CD34+ hematopoietic progenitor cell-derived monocyte/DC precursors. Progeny cells can be analyzed after a 3-week co-culture period, mimicking the physiologic turn-over time of intestinal MDC. A dominant monocyte differentiation pathway was suppressed, in favor of partial differentiation along DC and macrophage pathways, with low percentages of cells acquired DC or macrophage markers. Moreover, E and G cells play opposing roles in CX3CR1+ vs CD103dim cell differentiation, indicating that both together might counter-balance M/DC differentiation. Thus, SI epithelial cells suppress M/DC differentiation, supporting a key role for exogenous factors in M/DC differentiation.
- Find related publications in this database (using NLM MeSH Indexing)
- Humans - administration & dosage
- Dendritic Cells - administration & dosage
- Intestine, Small - administration & dosage
- Antigens, CD34 - metabolism
- Intestines - administration & dosage
- Cell Culture Techniques, Three Dimensional - administration & dosage
- Find related publications in this database (Keywords)
- Caco-2 cells
- dendritic cells
- goblet cells
- macrophages
- small intestine