Restricted microbiota and absence of cognate TCR antigen leads to an unbalanced generation of Th17 cells

Retinoic acid-related orphan receptor (ROR)γt(+) TCRαβ(+) cells expressing IL-17, termed Th17 cells, are most abundant in the intestinal lamina propria. Symbiotic microbiota are required for the generation of Th17 cells, but the requirement for microbiota-derived Ag is not documented. In this study,...

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Veröffentlicht in:The Journal of immunology (1950) 2011-02, Vol.186 (3), p.1531-1537
Hauptverfasser: Lochner, Matthias, Bérard, Marion, Sawa, Shinichiro, Hauer, Siona, Gaboriau-Routhiau, Valérie, Fernandez, Tahia Diana, Snel, Johannes, Bousso, Philippe, Cerf-Bensussan, Nadine, Eberl, Gérard
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container_issue 3
container_start_page 1531
container_title The Journal of immunology (1950)
container_volume 186
creator Lochner, Matthias
Bérard, Marion
Sawa, Shinichiro
Hauer, Siona
Gaboriau-Routhiau, Valérie
Fernandez, Tahia Diana
Snel, Johannes
Bousso, Philippe
Cerf-Bensussan, Nadine
Eberl, Gérard
description Retinoic acid-related orphan receptor (ROR)γt(+) TCRαβ(+) cells expressing IL-17, termed Th17 cells, are most abundant in the intestinal lamina propria. Symbiotic microbiota are required for the generation of Th17 cells, but the requirement for microbiota-derived Ag is not documented. In this study, we show that normal numbers of Th17 cells develop in the intestine of mice that express a single TCR in the absence of cognate Ag, whereas the microbiota remains essential for their development. However, such mice, or mice monocolonized with the Th17-inducing segmented filamentous bacteria, fail to induce normal numbers of Foxp3(+) RORγt(+) T cells, the regulatory counterpart of IL-17(+)RORγt(+) T cells. These results demonstrate that a complex microbiota and cognate Ag are required to generate a properly regulated set of RORγt(+) T cells and Th17 cells.
doi_str_mv 10.4049/jimmunol.1001723
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Symbiotic microbiota are required for the generation of Th17 cells, but the requirement for microbiota-derived Ag is not documented. In this study, we show that normal numbers of Th17 cells develop in the intestine of mice that express a single TCR in the absence of cognate Ag, whereas the microbiota remains essential for their development. However, such mice, or mice monocolonized with the Th17-inducing segmented filamentous bacteria, fail to induce normal numbers of Foxp3(+) RORγt(+) T cells, the regulatory counterpart of IL-17(+)RORγt(+) T cells. 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subjects Amino Acid Sequence
Animals
CD4 Lymphocyte Count
Cell Differentiation - genetics
Cell Differentiation - immunology
Cell Proliferation
Female
Forkhead Transcription Factors - biosynthesis
Forkhead Transcription Factors - deficiency
Forkhead Transcription Factors - genetics
Germ-Free Life - genetics
Germ-Free Life - immunology
Gram-Positive Bacterial Infections - immunology
Gram-Positive Bacterial Infections - pathology
Green Fluorescent Proteins - biosynthesis
Green Fluorescent Proteins - genetics
Immunology
Interleukin-17 - biosynthesis
Interleukin-17 - genetics
Intestinal Mucosa - immunology
Intestinal Mucosa - microbiology
Intestinal Mucosa - pathology
Life Sciences
Lymphocyte Activation - genetics
Lymphocyte Activation - immunology
Male
Mice
Mice, Knockout
Mice, Transgenic
Molecular Sequence Data
Nuclear Receptor Subfamily 1, Group F, Member 3 - biosynthesis
Nuclear Receptor Subfamily 1, Group F, Member 3 - deficiency
Nuclear Receptor Subfamily 1, Group F, Member 3 - genetics
Receptors, Antigen, T-Cell - deficiency
Receptors, Antigen, T-Cell - genetics
Receptors, Antigen, T-Cell - physiology
T-Lymphocytes, Helper-Inducer - immunology
T-Lymphocytes, Helper-Inducer - microbiology
T-Lymphocytes, Helper-Inducer - pathology
title Restricted microbiota and absence of cognate TCR antigen leads to an unbalanced generation of Th17 cells
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