CD103+CD56+ ILCs are associated with an immunosuppressed tumour microenvironment (bulk RNA-Seq)
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ABSTRACT:
PROVIDER: PRJNA1159844 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR30637345_1.fastq.gz | Fastqsanger.gz | |||
| SRR30637345_2.fastq.gz | Fastqsanger.gz | |||
| SRR30637346_1.fastq.gz | Fastqsanger.gz | |||
| SRR30637346_2.fastq.gz | Fastqsanger.gz | |||
| SRR30637347_1.fastq.gz | Fastqsanger.gz |
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Project description: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.
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Project description: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.
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Project description:CD103+CD56+ ILCs are associated with an immunosuppressed tumour microenvironment
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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).
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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.
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