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Innate lymphoid cell development

Maryam Ghaedi1, Fumio Takei2

  • 1Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.

The Journal of Allergy and Clinical Immunology
|May 9, 2021
PubMed

Innate lymphoid cells (ILCs) mainly reside at barrier surfaces and regulate tissue homeostasis and immunity. ILCs are divided into 3 groups, group 1 ILCs, group 2 ILCs, and group 3 ILC3, on the basis of their similar effector programs to T cells. The development of ILCs from lymphoid progenitors in adult mouse bone marrow has been studied in detail, and multiple ILC progenitors have been characterized. ILCs are mostly tissue-resident cells that develop in the perinatal period. More recently, ILC progenitors have also been identified in peripheral tissues. In this review, we discuss the stepwise transcription factor-directed differentiation of mouse ILC progenitors into mature ILCs, the critical time windows in ILC development, and the contribution of bone marrow versus tissue ILC progenitors to the pool of mature ILCs in tissues.

Keywords:
ILCsInnate lymphoid cellsdevelopmentprogenitorstranscription factors

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