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RORγt+ Innate lymphoid cells transcriptomes after aNKp44 and cytokine stimulation

ABSTRACT: RORγt+ innate lymphoid cells (ILC) are crucial players of innate immune responses and represent a major source of IL-22, which has an important role in mucosal homeostasis. The signals required by RORγt+ ILC to express IL-22 and other cytokines, including TNF, have only partially been elucidated. Here we show that RORγt+ ILC can directly sense the environment by the engagement of the activating receptor NKp44. NKp44 triggering in RORγt+ ILC selectively activates a coordinated pro-inflammatory program, including TNF, while cytokine stimulation induces preferentially IL-22 expression. However, combined engagement of NKp44 and cytokine receptors results in a strong synergistic effect. These data support the concept that NKp44+ RORγt+ ILC can be activated without cytokines and are able to switch between IL-22 or TNF production, depending on the triggering stimulus.

ORGANISM(S): Homo sapiens

PROVIDER: GSE43409 | GEO | 2013/10/30

SECONDARY ACCESSION(S): PRJNA186006

REPOSITORIES: GEO

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RORÎ³t+ Innate lymphoid cells transcriptomes after aNKp44 and cytokine stimulation

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