TNFR2 Signaling Enhances ILC2 Survival, Function, and Induction of Airway Hyperreactivity
Overview
Cell Biology
Molecular Biology
Authors
Affiliations
Group 2 innate lymphoid cells (ILC2s) can initiate pathologic inflammation in allergic asthma by secreting copious amounts of type 2 cytokines, promoting lung eosinophilia and airway hyperreactivity (AHR), a cardinal feature of asthma. We discovered that the TNF/TNFR2 axis is a central immune checkpoint in murine and human ILC2s. ILC2s selectively express TNFR2, and blocking the TNF/TNFR2 axis inhibits survival and cytokine production and reduces ILC2-dependent AHR. The mechanism of action of TNFR2 in ILC2s is through the non-canonical NF-κB pathway as an NF-κB-inducing kinase (NIK) inhibitor blocks the costimulatory effect of TNF-α. Similarly, human ILC2s selectively express TNFR2, and using hILC2s, we show that TNFR2 engagement promotes AHR through a NIK-dependent pathway in alymphoid murine recipients. These findings highlight the role of the TNF/TNFR2 axis in pulmonary ILC2s, suggesting that targeting TNFR2 or relevant signaling is a different strategy for treating patients with ILC2-dependent asthma.
She L, Alanazi H, Xu Y, Yu Y, Gao Y, Guo S iScience. 2024; 27(11):111240.
PMID: 39563895 PMC: 11574794. DOI: 10.1016/j.isci.2024.111240.
Sakano Y, Sakano K, Hurrell B, Shafiei-Jahani P, Kazemi M, Li X Cell Mol Immunol. 2024; 21(10):1158-1174.
PMID: 39160226 PMC: 11442993. DOI: 10.1038/s41423-024-01208-z.
MDM2 Is Essential to Maintain the Homeostasis of Epithelial Cells by Targeting p53.
Wang S, Zhong S, Huang Y, Zhu S, Chen S, Wang R J Innate Immun. 2024; 16(1):397-412.
PMID: 39134014 PMC: 11521410. DOI: 10.1159/000539824.
TNF Superfamily and ILC2 Activation in Asthma.
Matsuyama T, Salter B, Fard N, Machida K, Sehmi R Biomolecules. 2024; 14(3).
PMID: 38540714 PMC: 10967788. DOI: 10.3390/biom14030294.
Piezo1 channels restrain ILC2s and regulate the development of airway hyperreactivity.
Hurrell B, Shen S, Li X, Sakano Y, Kazemi M, Quach C J Exp Med. 2024; 221(5).
PMID: 38530239 PMC: 10965393. DOI: 10.1084/jem.20231835.