Rbpj expression in regulatory T cells is critical for restraining T(H)2 responses

Delacher, Michael and Schmidl, Christian and Herzig, Yonatan and Breloer, Minka and Hartmann, Wiebke and Brunk, Fabian and Kaegebein, Danny and Traeger, Ulrike and Hofer, Ann-Cathrin and Bittner, Sebastian and Weichenhan, Dieter and Imbusch, Charles D. and Hotz-Wagenblatt, Agnes and Hielscher, Thomas and Breiling, Achim and Federico, Giuseppina and Groene, Hermann-Josef and Schmid, Roland M. and Rehli, Michael and Abramson, Jakub and Feuerer, Markus (2019) Rbpj expression in regulatory T cells is critical for restraining T(H)2 responses. NATURE COMMUNICATIONS, 10: 1621. ISSN 2041-1723,

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Abstract

The transcriptional regulator Rbpj is involved in T-helper (T-H) subset polarization, but its function in T-reg cells remains unclear. Here we show that T-reg-specific Rbpj deletion leads to splenomegaly and lymphadenopathy despite increased numbers of T-reg cells with a polyclonal TCR repertoire. A specific defect of Rbpj-deficient T-reg cells in controlling T(H)2 polarization and B cell responses is observed, leading to the spontaneous formation of germinal centers and a T(H)2-associated immunoglobulin class switch. The observed phenotype is environment-dependent and can be induced by infection with parasitic nematodes. Rbpj-deficient T-reg cells adopt open chromatin landscapes and gene expression profiles reminiscent of tissue-derived T(H)2-polarized T-reg cells, with a prevailing signature of the transcription factor Gata-3. Taken together, our study suggests that T-reg cells require Rbpj to specifically restrain T(H)2 responses, including their own excessive T(H)2-like differentiation potential.

Item Type: Article
Uncontrolled Keywords: DNA-METHYLATION; GATA3 EXPRESSION; NOTCH; PROTEIN; HOMEOSTASIS; ACTIVATION; SPECIALIZATION; INFLAMMATION; TOLERANCE; INFECTION;
Subjects: 600 Technology > 610 Medical sciences Medicine
Divisions: Medicine > Lehrstuhl für Innere Medizin III (Hämatologie und Internistische Onkologie)
Medicine > Zentren des Universitätsklinikums Regensburg > Regensburger Centrum für Interventionelle Immunologie (RCI)
Depositing User: Dr. Gernot Deinzer
Date Deposited: 14 Apr 2020 07:06
Last Modified: 14 Apr 2020 07:06
URI: https://pred.uni-regensburg.de/id/eprint/27183

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