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CD103+CD56+ ILCs are associated with an immunosuppressed tumour microenvironment

ABSTRACT: Immunotherapies have had unprecedented success for multiple cancer types, albeit with variable response rates. Unravelling the complex network of immune cells within the tumour microenvironment (TME) may provide additional insights to enhance anti-tumour immunity and improve clinical response. Here, we identified a CD103-expressing CD56+ ILC subset that were associated with a poor proliferative capacity of tumour-infiltrating lymphocytes (TILs) in culture. We demonstrate that CD103+CD56+ ILCs isolated directly from tumors represent a distinct ILC population that expressed unique surface markers, transcription factor networks, and transcriptomic profiles compared to CD103-CD56+ NK cells. Using multiple approaches, we found that these CD103+CD56+ ILCs were associated with CD8+ T cells with a reduced expression of GZMB. This study identifies 59 a population of CD103+CD56+ ILCs with potentially inhibitory functions, that are associated with a TME that includes CD8+ T cells with poor anti-tumour activity. Further studies focusing on these potentially inhibitory cells may provide insights into understanding the biology of an inhibitory TME.

ORGANISM(S): Homo sapiens

PROVIDER: GSE276563 | GEO | 2024/09/07

REPOSITORIES: GEO

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CD103+CD56+ ILCs are associated with an immunosuppressed tumour microenvironment

Project description:CD103+CD56+ ILCs are associated with an immunosuppressed tumour microenvironment

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Clarification of human blood ILC subtype interrelatedness and discovery of amphiregulin production by human NK cells shed light on HIV-1 pathogenesis

Project description:Human blood innate lymphoid cells (ILCs), which include ILCs and natural killer (NK) cells, derive from a common CD117+ILC precursor (ILCP). Yet, the relationship among the ILC subsets remains unclear. Bulk and single cell RNA-Seq and ATAC-Seq showed that blood ILC subsets cluster into ILC2s, ILCPs, a mixed cluster of CD56dim and CD56– NK cells, and a separate cluster of CD56hiNK cells that shares features with both ILCs and CD56dim/–NK cells. In surprising contrast to mice, tissue repair protein amphiregulin (AREG) was produced by human NK cells, with even higher levels in CD56hiNK cells than in ILCs. AREG expression in NK cells was driven by TCF7/WNT signaling and inhibited by TGFB1, a cytokine elevated in HIV-1+ people. Knockout of RUNX3, a WNT antagonist acting downstream of TGFB1, increased AREG production. Consistent with these findings, AREG+NK cells were decreased in people living with HIV-1. Additionally, functionally defective CD56–NK cells expanded in HIV-1+ people, in inverse correlation with CD56dimNK cells, ILCs, and CD4+T cells. Experiments in tissue culture and in humanized mice showed that CD56–NK cells derive from the epigenetically similar CD56dimNK cells, and that stimulation of MTOR by CD4+T cells or exogenous IL-2 prevents their expansion. These findings clarify how ILC subsets are related to each other and provide insight into how HIV-1 infection disrupts ILC homeostasis and contributes to pathology

2023-06-07 | GSE203002 | GEO

Transcriptional profiles of human circulating innate lymphoid cells and CD4 T helper cells

Project description:Innate lymphoid cells (ILCs) are part of the innate immune cell family. Three different subsets of ILCs, ILC1s, ILC2s and ILCPs can be identified in human peripheral blood. Based on their expression of transcription factors and cytokines, they are considered as being the innate counterparts of CD4 T helper subsets, namely Th1s, Th2s and Th17s. However, ILCs and Th cells have different roles in immunity. Therefore, we compared the transcriptomes of sorted ILC1s, ILC2s, ILCPs, Th1s, Th2s and Th17s from the peripheral blood of three different donors. RNA sequencing of ILC and Th subsets revealed differences in the expression of tens to hundreds of genes. These genes are involved in cell trafficking, innate activation and inhibitory functions. ILC and Th cell subsets also differ in their expressions of long-non coding RNAs.

2020-02-04 | E-MTAB-8494 | biostudies-arrayexpress

In vitro differentiated CD56-positive ILC transcriptional profiling via scRNA-seq

Project description:The innate cytotoxic Natural Killer (NK) cells emerged during hematopoiesis through a linear model of human NK development, yet how in vitro model of NK differentiation recapitulates in vivo process is largely under-explored. Here, we established that NK cell trajectory in vitro can be divided into 4 stages by sequential acquisition of CD161, CD56 and CD94 in which CD56 bifurcation can separate Stage 3a (CD56-) as ILC-precursor that can further give rise to stage 3b (CD56+) and stage 4 (CD94+). Re-plating results together with clonal tracing between S3b, S4 and ILC3 subsets supported a diverging developmental point between NK and ILC3 lineages occurs at the S3a stage and accompanied by the loss of the ILC3 potential as NK cell maturation progress from S3b toward S4. Single-cell transcriptomic and RNA-velocity connected the NK cytotoxic trajectory with a coordinated network of transcription factors (TFs) that are highly compatible with primary NK cell gene program.

2023-06-30 | GSE235708 | GEO

Gene expression analysis for CD56- T, NK, CD56+ T cells, and iNKT cells

Project description:A small subset of T cells also expresses kiler-cell immunoglobulin-like receptors (KIRs). We find that KIR+ T cells primarily reside in the CD56+ T population. However, little is known on how these cells are different from the conventional CD56- T, NK, and iNKT cells. We used microarray profiling to compare and determine the distinctive differences of CD56+ T cell and its KIR subsets when compared to the conventional CD56- T, NK and iNKT cells. Lymphocyte subsets were sorted from human peripheral blood mononuclear cells with FACSAriaII (BD Biosciences, San Jose, CA) using anti-CD3, anti-CD56, anti-CD14, anti-KIR2DL1, anti-KIR2DL2/3, anti-KIR3DL1 and anti-TCRValpha24 antibodies. The purity of CD3+CD56- T cells, CD3-CD56+ NK cells, CD3+CD56+ T cells, KIR-CD3+CD56+ T cells, and KIR+CD3+CD56+ T cells were more than 98% in all experiments. The purities of iNKT cells for TCRValpha24 and CD1d-tetramer were >95% and >90%, respectively. RNA pre-amplification, labeling and hybridization on Human Genome U133Plus 2.0 GeneChip array were performed in the St. Jude Hartwell Center for Bioinformatics & Biotechnology microarray core facility according to the manufacturer’s instructions (Affymetrix, Santa Clara, CA).

2013-07-01 | E-GEOD-47855 | biostudies-arrayexpress

Gene expression analysis for CD56- T, NK, CD56+ T cells, and iNKT cells

2013-07-01 | GSE47855 | GEO

In vitro differentiated CD56-positive ILC transcriptional profiling via scRNA-seq

Project description:In vitro differentiated CD56-positive ILC transcriptional profiling via scRNA-seq

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Glucocorticoids inhibit human hematopoietic stem cell differentiation toward a common ILC precursor

Project description:Background: Innate lymphoid cells (ILCs) comprise cytotoxic NK cells and “helper” ILCs (hILCs). Human hILC development is less characterized as compared to NK cells, although all ILCs are developmentally related. It has been reported that the immunosuppressive drugs glucocorticoids (GCs) regulate ILCs function, but whether they control ILCs differentiation from hematopoietic stem cells (HSCs) is unknown. Objective: We sought to analyze the effect of GCs on ILC development from HSCs. Methods: We exploited an in vitro system to generate and expand from peripheral blood (PB) HSCs a multipotent CD56+ ILC precursor able to differentiate into NK cells, ILC1s and ILC3s. We also analyzed ex vivo, at different time points, the PB of allogeneic HSC transplantation (HSCT) recipients who were or were not treated with GCs and compared ILC subset reconstitution. Results: We show that, in vitro, GCs favor the generation of NK cells from myeloid precursors, while they strongly impair lymphoid development. In support to these data, HSCT recipients who had been treated with GCs display a lower number of circulating hILCs, including the ILCP previously identified as a systemic substrate for tissue ILC differentiation. Conclusions: GCs impair the development of the CD117+ ILCP from CD34+ HSCs, while they do not affect the further steps of ILCP differentiation towards NK cells and hILC subsets. This reflects an association of GC treatment with a marked reduction of circulating hILCs in the recipients of HSCT.

2021-11-05 | GSE186950 | GEO

Comprehensive protein-expression map of ILC2 and ILC3 subsets in healthy human skin

Project description:Innate lymphoid cells (ILCs) have emerged as essential players in the skin-associated immune system in health and inflammatory skin diseases. Their low numbers and lack of specific markers hampered extensive characterization and consequently resulted in limited knowledge of their protein expression. Here, we combined flow cytometry and state-of-the-art proteomics to comprehensively describe the proteins constitutively expressed by ILC2 and ILC3 subsets derived from healthy human skin and peripheral blood. We quantified 6666 proteins from skin ILC and identified 608 differentially expressed proteins in the investigated subsets. In addition to the current analyses, highlighting new functions of ILC, the ILC proteomic libraries and the proteomes of the ILC2 and ILC3 subsets will serve as valuable resources for future analyses of ILC function and are available at http://skin.science.

2023-10-10 | PXD037817 | Pride

Expression data from small intestinal Lin-c-Kit+Sca-1- cells and Lin-c-Kit-Sca-1- cells.

Project description:Small intestinal innate lymphoid cells (ILCs) are known to regulate intestinal epithelial cell homeostasis and to help prevent pathogenic bacterial infections, by producing IL-22. However, other functions of these cells and the lineal relationship between ILCs and lymphoid or myeloid cells have not been clear. We performed a global gene expression analysis to examine which genes are highly expressed by small intestinal ILCs (Lin-c-Kit+Sca-1- cells) compared with non-ILCs (Lin-c-Kit-Sca-1- cells). To examine the gene expression profiles of ILCs within the small intestinal lamina propria (LP), we isolated Lingeage (Lin)-c-Kit+Sca-1- cells [consisting of NKp46+ ILC22 (Lin-c-Kit+Sca-1-NKp46+ cells) and LTi-like ILC (Lin-c-Kit+Sca-1-CD4+ cells)] as the ILC population, and Lin-c-Kit-Sca-1- cells as the non-ILC population, from the small intestinal LP of 8 week-old mice by FACS, then compared the gene expression profiles between these two populations by microarray analysis.

2012-09-15 | E-GEOD-40882 | biostudies-arrayexpress

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