Abstract
Group 2 innate lymphoid cells (ILCs), or ILC2s, are a subset of recently identified ILCs, which play important roles in innate immunity by producing type 2 effector cytokines. Several transcription factors have been found to have critical functions in the development of both ILC2s and T cells. We report here that Bcl11b, a transcription factor essential in T cell lineage commitment and maintenance, is specifically expressed in progenitors committed to the ILC2 lineage and is required for ILC2 development. The Bcl11b gene is expressed in ∼28% of ILC progenitors (ILCPs; common helper innate lymphoid progenitors or ILCPs expressing either ID2 or promyelocytic leukemia zinc finger, respectively). Both in vitro and in vivo, these Bcl11b-expressing early ILCPs generate only ILC2s. Inactivation of Bcl11b causes a complete loss of ILC2 development from hematopoietic progenitors, which is confirmed upon immune challenge with either papain administration or influenza virus infection.
Original language | English (US) |
---|---|
Pages (from-to) | 865-74 |
Number of pages | 10 |
Journal | The Journal of experimental medicine |
Volume | 212 |
Issue number | 6 |
DOIs | |
State | Published - Jun 1 2015 |
Keywords
- Animals
- Cell Lineage
- Cell Separation
- Chromatin Immunoprecipitation
- Female
- Flow Cytometry
- GATA3 Transcription Factor
- Gene Deletion
- Gene Expression Profiling
- Gene Expression Regulation
- Genes, Reporter
- Hematopoietic Stem Cells
- Immunity, Innate
- Inducible T-Cell Co-Stimulator Protein
- Lymphocytes
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Transgenic
- Receptors, Interleukin
- Repressor Proteins
- Tumor Suppressor Proteins
- Zinc Fingers
ASJC Scopus subject areas
- Immunology and Allergy
- Immunology