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The basic leucine zipper transcription factor NFIL3 directs the development of a common innate lymphoid cell precursor

ABSTRACT: Innate lymphoid cells (ILCs) are recently identified lymphocytes that limit infection and promote tissue repair at mucosal surfaces. However, the pathways underlying ILC development remain unclear. Here we show that the transcription factor NFIL3 directs the development of a committed bone marrow precursor that differentiates into all known ILC lineages. NFIL3 was required in the common lymphoid progenitor (CLP), and was essential for the differentiation of CLP, a bone marrow cell population that gives rise to all known ILC lineages. Clonal differentiation studies revealed that CXCR6+ cells within the CLP population differentiate into all ILC lineages but not T- and B-cells. We further show that NFIL3 governs ILC development by directly regulating expression of the transcription factor TOX. These findings establish that NFIL3 directs the differentiation of a committed ILC precursor that gives rise to all ILC lineages and provide insight into the defining role of NFIL3 in ILC development. This experiment is to compare gene expression profiles between wild-type and Nfil3-/- common lymphoid progenitor (CLP) cells to identify genes regulated by NFIL3.

ORGANISM(S): Mus musculus

PROVIDER: GSE62337 | GEO | 2014/10/16

SECONDARY ACCESSION(S): PRJNA263871

REPOSITORIES: GEO

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The basic leucine zipper transcription factor NFIL3 directs the development of a common innate lymphoid cell precursor

Project description:Innate lymphoid cells (ILCs) are recently identified lymphocytes that limit infection and promote tissue repair at mucosal surfaces. However, the pathways underlying ILC development remain unclear. Here we show that the transcription factor NFIL3 directs the development of a committed bone marrow precursor that differentiates into all known ILC lineages. NFIL3 was required in the common lymphoid progenitor (CLP), and was essential for the differentiation of CLP, a bone marrow cell population that gives rise to all known ILC lineages. Clonal differentiation studies revealed that CXCR6+ cells within the CLP population differentiate into all ILC lineages but not T- and B-cells. We further show that NFIL3 governs ILC development by directly regulating expression of the transcription factor TOX. These findings establish that NFIL3 directs the differentiation of a committed ILC precursor that gives rise to all ILC lineages and provide insight into the defining role of NFIL3 in ILC development. This experiment is to compare gene expression profiles between wild-type and Nfil3-/- common lymphoid progenitor (CLP) cells to identify genes regulated by NFIL3. There are 6 samples in this experiment, including 3 biological replicates for wild-type CLPs and 3 biological replicates for Nfil3-/- CLPs. All mice used are on the C57BL/6 background.

2014-10-16 | E-GEOD-62337 | biostudies-arrayexpress

Development and differentiation of early innate lymphoid progenitors

Project description:Early innate lymphoid progenitors (EILP) have recently been identified in the mouse adult bone marrow as a multipotential progenitor population committed to ILC lineages, but their relationship with other described ILC progenitors is still unclear. In this study, we examine the progenitor-successor relationships between EILP, IL-7R+ common lymphoid progenitors (ALP), and ILC precursors (ILCp). Bioinformatic, phenotypical, functional, and genetic approaches collectively establish EILP as an intermediate progenitor between ALP and ILCp. Our work additionally provides new candidate regulators of ILC development and clearly defines the stage of requirement of transcription factors key for early ILC development.

2017-11-15 | GSE81530 | GEO

Multi-transcription factor reporter mice delineate early precursors to the LTi and ILC lineages

Project description:Transcription factor (TF) reporter mice have proved integral to the characterization of murine innate lymphoid cell (ILC) development and function. Here, we implemented a CRISPR/Cas9-generated combinatorial reporter approach for the simultaneous resolution of several key TFs throughout ILC development in both the fetal liver and adult bone marrow. We demonstrate that the Tcf7-expressing early innate lymphoid progenitor (EILP) and the common helper innate lymphoid progenitor (CHILP) both contain a heterogeneous mixture of committed ILC and Lymphoid Tissue-inducer (LTi) precursors, rather than a shared precursor to these lineages. Moreover, the earliest specified precursor to the LTi lineage was identified upstream of these populations, prior to the expression of Tcf7. These findings match dynamic changes in chromatin accessibility associated with the expression of key TFs (ie. Gata3 and Rorc), highlighting the distinct origins of ILC and LTi lineages at the epigenetic and functional levels, and provide a revised map for ILC development.

2020-09-28 | GSE150763 | GEO

PDGFRa+gp38+ mesenchymal cells in the peripheral tissues support terminal differentiation of ILC2 originated from fetal liver progenitor cells.

Project description:Group 2 innate lymphoid cells (ILC2) are tissue-resident innate lymphocytes that are derived from common lymphoid progenitor (CLP). While specific progenitors and transcription factors essential for ILC2 differentiation have been well studied, external factors that regulate the commitment from CLP to ILC lineage, site that promote ILC2 terminal differentiation, and stromal cells that provide optimal microenvironment for ILC2 specific development are not fully understood. we demonstrated that the three key external factors such as concentration of IL-7 and the strength and duration of Notch signaling conditionally determined the fate of CLP toward T cell, B cell, or ILC lineages, which seems to be an important process from CLP to CHILP differentiation in the fetal liver. Furthermore, we identified ILC progenitors lacking the developmental potential to become T or B cells, and KLRG1- immature ILC2 that require STAT5 for functional maturation in the mesentery. We also identified PDGFRa+gp38+ mesenchymal cells in the mesentery that support ILC2 differentiation from ILC progenitors but not from CLP. Finally, single-cell RNA-sequencing (scRNA-seq) analysis of mesenteric cells demonstrated that PDGFRa+gp38+ cells are heterogeneous populations. Collectively, our result suggested that early differentiation of ILC2 occurs in the primary lymphoid organ with regulation of environmental factors, and final differentiation occurs in the peripheral tissues once after CHILP migrate into the periphery.

2018-04-27 | GSE102665 | GEO

Innate lymphoid cell development requires TOX-dependent generation of a common ILC progenitor

Project description:Subtypes of innate lymphoid cells (ILC), defined by effector function and transcription factor expression, have recently been identified. In the adult, ILC derive from common lymphoid progenitors in bone marrow, although transcriptional regulation of the developmental pathways involved remains poorly defined. TOX is required for development of lymphoid tissue inducer cells, a type of ILC3 required for lymph node organogenesis, and NK cells, a type of ILC1. We show here that production of multiple ILC lineages requires TOX, as a result of TOX-dependent development of common ILC progenitors. Comparative transcriptome analysis demonstrated failure to induce various aspects of the ILC gene program in the absence of TOX, implicating this nuclear factor as a key early determinant of ILC lineage specification. TOX KO vs. wild tyype

2015-04-27 | E-GEOD-65850 | biostudies-arrayexpress

Systemic human ILC precursors provide a substrate for tissue ILC differentiation

Project description:Innate lymphoid cells (ILC) represent innate versions of T helper and cytotoxic T cells that differentiate from committed ILC precursors (ILCP). Still, how ILCP relate to mature tissue-resident ILCs remains unclear. We observed that a population of CD117+ ILC from peripheral blood (PB) of healthy donors does not represent any conical ILC subset, but expressed marker (CD117) commonly expressed by hemato-lymphoid progenitors. We therefore hypothesized PB CD117+ ILC might include uncommitted lymphoid precursors. In order to further understand the identity of PB CD117+ ILC, we profiled the transcriptome of highly purified circulating CD117+ ILC compared to CD34+ HSC, the latter representing immature hematopoietic progenitors with multi-lineage potential. Clear differences in gene expression profiles emerged, with a large cluster of 1540 genes expressed at substantially higher levels in CD117+ ILC. In contrast, CD34+ HSC cells highly expressed genes involved in the broad development of diverse hematopoietic lineages. Compared to HSC, CD117+ ILC express high levels of TF that have been shown to be essential for murine ILC development and we did not detect transcripts characteristic of T and B cells development. Transcriptomic analysis suggested that CD117+ ILC represent lymphoid-biased progenitors carrying a TF expression profile resembling a multi-potent ILC precursor (ILCP).

2017-03-19 | GSE90834 | GEO

Differential requirement for Nfil3 during NK cell development

Project description:Nfil3 has multiple functions during conventional NK cell and thymic NK cell development. Nfil3 controls NK cell development from the earliest committed NK cell progenitor stage. Nfil3-/- prepro NK cells retained T-cell potential due to the failure to repress T cell specific genes. At later stages of NK cell development, Nfil3 regulates the formation of mature NK cells by promoting directly or indirectly the expression of transcription factor Eomes. We also demonstrate that Nfil3 is important for thymic NK cell development whereas Trail+ immature NK cells generated in the bone marrow of neonates and in the adult liver develop independent of Nfil3 function. We used microarrays to analyse the changes in gene expression due to the presence or absence of Nfil3, both in prepro NK cells and ALP cells (all lymphoid progenitors) Samples were obtained on two experimentation dates. Replicate 1 was processed in April 2012, replicate 2 was processed in May 2012.

2013-10-08 | E-GEOD-45955 | biostudies-arrayexpress

Human Innate Lymphoid Cell Precursors Express CD48 that Modulates ILC Differentiation through 2B4 Signaling

Project description:Innate lymphoid cells (ILCs) develop from common lymphoid progenitors (CLP), which further differentiate into the common ILC progenitor (CILP) that can give rise to both ILCs and NK cells. Murine ILC intermediates have recently been characterized, but the human counterparts and their developmental trajectories have not yet been identified, largely due to the lack of homologous surface receptors in both organisms. Here, we show that human CILPs (CD34+CD117+α4β7+Lin-) acquire CD48 and CD52, which define NK progenitors (NKPs) and innate lymphoid cell precursors (ILCPs). Two distinct NK cell subsets were generated in vitro from CD34+CD117+α4β7+Lin-CD48-CD52+ and CD34+CD117+α4β7+Lin-CD48+CD52+ NKPs, respectively. Independent of NKPs, ILCPs exist in the CD34+CD117+α4β7+Lin-CD48+CD52+ subset and give rise to ILC1s, ILC2s and NCR+ ILC3s, whereas CD34+CD117+α4β7+Lin-CD48+CD52- ILCPs give rise to a distinct subset of ILC3s that have lymphoid tissue inducer (LTi)-like properties. Additionally, CD48 expressing CD34+CD117+α4β7+Lin- precursors give rise to tissue-associated ILCs in vivo. We also observed that the interaction of 2B4 with CD48 induced differentiation of ILC2s, and together these findings show that expression of CD48 by human ILCPs modulates ILC differentiation.

2020-11-20 | GSE160009 | GEO

Differential requirement for Nfil3 during NK cell development

2013-10-08 | GSE45955 | GEO

Innate lymphoid cell development requires TOX-dependent generation of a common ILC progenitor

2015-04-27 | GSE65850 | GEO