Group 2 innate lymphoid cells are a non-redundant source of interleukin-5 required for development and function of murine B1 cells

Troch KF, Jakob MO, Forster PM, Jarick KJ, Schreiber J, Preusser A, Guerra GM, Durek P, Tizian C, Sterczyk N, Helfrich S, Duerr CU, Vöhringer D, Witkowski M, Artis D, Rollenske T, Kruglov AA, Mashreghi MF, Klose CS (2024)

Publication Type: Journal article

Publication year: 2024

Journal

Nature Communications Nature Publishing Group: Nature Communications

Book Volume: 15

Article Number: 10566

Journal Issue: 1

DOI: 10.1038/s41467-024-54780-3

Abstract

Tissue-resident immune cells, such as innate lymphoid cells, mediate protective or detrimental immune responses at barrier surfaces. Upon activation by stromal or epithelial cell-derived alarmins, group 2 innate lymphoid cells (ILC2s) are a rapid source of type 2 cytokines, such as IL-5. However, due to the overlap in effector functions, it remains unresolved whether ILC2s are an essential component of the type 2 response or whether their function can be compensated by other cells, such as T cells. Here we show a non-redundant role of ILC2s in supporting the development and function of B1 cells. We demonstrate that B1 cells fail to develop properly in the absence of ILC2s and identify the IL-33 receptor on ILC2s as an essential cell-intrinsic regulator of IL-5 production. Further, conditional deletion of Il5 in ILC2s results in defective B1 cell development and immunoglobulin production. Consequently, B1 cells with phosphatidylcholine specific B cell receptor rearrangements are diminished in ILC2-deficient mice. Thus, our data establish an essential function of ILC2s in supporting B1 cells and antibody production at barrier surfaces.

Authors with CRIS profile

David Vöhringer Department of Infection Biology

Involved external institutions

Charité - Universitätsmedizin Berlin DE Germany (DE) Deutsches Rheuma-Forschungszentrum (DRFZ) DE Germany (DE) Universitätsklinikum Bonn DE Germany (DE) Weill Cornell Medicine US United States (USA) (US)

How to cite

APA:

Troch, K.F., Jakob, M.O., Forster, P.M., Jarick, K.J., Schreiber, J., Preusser, A.,... Klose, C.S. (2024). Group 2 innate lymphoid cells are a non-redundant source of interleukin-5 required for development and function of murine B1 cells. Nature Communications, 15(1). https://doi.org/10.1038/s41467-024-54780-3

MLA:

Troch, Karoline F., et al. "Group 2 innate lymphoid cells are a non-redundant source of interleukin-5 required for development and function of murine B1 cells." Nature Communications 15.1 (2024).

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