Function of innate lymphoid cells in the immune-related disorders.

Innate lymphoid cells (ILCs) are a recently described group of innate immune cells that mirror the characteristics of CD4 T cell subsets. Based on their transcriptional factor and cytokine profile, ILCs family is divided into main subgroups-ILC1s, ILC2s, and ILC3s. Recently, one new subpopulation of ILCs with immunosuppressive characteristics has been described and named as regulatory ILCs. Various roles of ILCs have been confirmed including the role during the response to microbial signals, the role in inflammation and process of tissue repair. Function of ILCs is mediated through the cytokines production and direct cell-to-cell contact. This article summarizes in detail, the relationship between the ILCs and various immune-related disorders.