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Gene expression profile of canine Chimeric Antigen Receptor (CAR) Engineered invariant Natural Killer T (iNKT) cells

ABSTRACT: We used Nanostring gene expression profiling to characterize CAR-engineered canine iNKT cells

ORGANISM(S): Canis lupus familiaris

PROVIDER: GSE229458 | GEO | 2023/09/05

REPOSITORIES: GEO

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Comparative gene expression profile of canine and human invariant Natural Killer T (iNKT) cells at single cell level [scRNA-seq]

Project description:We used single cell RNA sequencing (scRNA-seq) to characterize the heterogeneity of peripheral blood-derived canine iNKT cells relative to that of human iNKTs.

2023-09-05 | GSE229457 | GEO

Expression data from invariant natural killer T (iNKT) cells in spleen and adipose tissue

Project description:Adipose tissue iNKT cells have different functions than iNKT cells in the blood and other organs. We used microarrays to detail the global gene expression profiles that might underlie these phenotypic and functional differences in adipose iNKT cells compared to splenic iNKT cells.

2014-12-01 | GSE63358 | GEO

Generation of Allogeneic Hematopoietic Stem Cell-Engineered Invariant Natural Killer T cells for Off-the-Shelf Immunotherapy [VDJ-seq]

Project description:While T cell-based immunotherapies have shown promising clinical responses, current cancer treatments are restricted to autologous cellular products due to the risk of graft-versus-host disease (GvHD) by allogeneic cell transfer. Invariant natural killer T (iNKT) cells are ideal cell carriers for developing off-the-shelf allogeneic cellular therapy because they are powerful immune cells targeting a broad range of cancers without causing GvHD. However, current immunotherapies using iNKT cells are impeded by their extremely low number in cancer patients. In this study, we aimed to overcome this limitation by generating a large number of iNKT cells through TCR engineering of human hematopoietic stem cells (HSCs) and differentiation of HSCs to iNKT cells in an in vitro cultured system. Additionally, Chimeric antigen receptor (CAR) engineering and the CRISPR-Cas9 gene editing tool were utilized to enhance the tumor killing efficacy of iNKT cells and eliminate HLA molecules on their surface, making the cellular product suitable for cancer therapy and allogeneic adoptive transfer. Our results demonstrated successful generation of the promising off-the-shelf B cell maturation antigen (BCMA)-CAR engineered iNKT cells for treating multiple myeloma, and the same strategy will be applied to multiple cellular products for treating other cancers.

2021-12-01 | GSE164500 | GEO

Generation of Allogeneic Hematopoietic Stem Cell-Engineered Invariant Natural Killer T cells for Off-the-Shelf Immunotherapy [RNA-seq]

2021-12-01 | GSE164425 | GEO

Invariant natural killer T (iNKT) cell exhaustion in sarcoidosis.

Project description: Not available

| S-EPMC3869389 | biostudies-literature

Mitochondrial Metabolism is Essential for Invariant Natural Killer T Cell Development and Function

Project description:Conventional T cell fate and function are determined by coordination between cellular signaling and metabolism. Invariant natural killer T (iNKT) cells are a subset of “innate-like” pre-activated T cells whose dependence on mitochondrial metabolism remains elusive. Here, we showed that mature iNKT cells have reduced mitochondrial respiratory reserve and iNKT cell development was highly sensitive to perturbation of mitochondrial function. Mice with T cell-specific ablation of Rieske Iron-Sulphur protein (T-Uqcrfs1-/-), an essential subunit of mitochondrial complex III, had a dramatic reduction of iNKT cells in the thymus and periphery, but minimal effects on conventional T cell development. Residual iNKT cells in T-Uqcrfs1-/- mice retained ability to proliferate but exhibited increased apoptosis, decreased TCR signaling and impaired responses to TCR and IL-15 stimulation. Furthermore, knocking down RISP in mature iNKT cells diminished their cytokine production, correlating with reduced NFATC2 activity. Collectively, our data demonstrate a critical role for mitochondrial metabolism in iNKT cell development and activation outside of supporting bioenergetic demands.

2021-03-12 | GSE157283 | GEO

Gene Regulation by Histone Deacetylase 7 During Invariant Natural Killer T Cell Development

Project description:We have found that the signal-dependent chromatin modulator Histone Deacetylase 7 interacts with and corepresses the signature transcription factor of invariant natural Killer T (iNKT) cells, ZBTB16. This study was designed to determine the global effect on transcription of a gain-of-function mutant of HDAC7 during iNKT cell development and function. Va14/Ja18 T cell receptor transgenic thymocytes and splenocytes, which develop preferentially into iNKT cells, were profiled by RNA-seq with and without expression of a gain-of-functon HDAC7 transgene (HDAC7dP)

2018-05-08 | GSE105026 | GEO

iNKT gene profiling_Map3k1

Project description:Transcriptional profiling of iNKT gene expression in Map3k1 control and mutant mice

2016-06-01 | E-MTAB-1561 | biostudies-arrayexpress

Canine head and neck cancer as a spontaneous, translational model for radio-immunology research

Project description:The baseline immune landscape of spontaneous canine HNSCC tumors was asssessed using immunohistochemistry and nanostring gene expression profiling of 34 canine oral carcinoma tumors and two normal oral mucosal tissue samples.

2022-09-24 | GSE213726 | GEO

Single-cell Transcriptomics Reveal Different Maturation Stages and Sublineages Commitment of Human Thymic Invariant Natural Killer T Cells

Project description:Invariant natural killer T (iNKT) cells are a rare but heterogenous T-cell subset with potent cytotoxic and immunomodulatory properties. During thymic development, murine iNKT cells go through different maturation stages and differentiate into distinct sublineages, namely iNKT1, iNKT2, and iNKT17 cells. Recent reports indicate that iNKT2 cells display immature properties and also give rise to other subsets, whereas iNKT1 cells seem to be terminally differentiated. Whether human iNKT cells follow a similar differentiation model is still unknown. To define the maturation stages and to assess the sublineage commitment of human iNKT cells during thymic development, in the present study we performed single-cell RNA sequencing analysis on human iNKT cells isolated from thymocytes. We show that human iNKT cells displayed heterogeneity and our unsupervised analysis identified two clusters: a first cluster expressed an immature profile with high expression of genes that are important for iNKT cell development and proliferation, whereas a second cluster displayed a mature, terminally differentiated profile. Trajectory analysis suggested an ontological relationship between the two clusters. Evaluation of the expression of sublineage-defining gene sets revealed that the first cluster contained mainly cells with an iNKT2 signature, whereas the more differentiated one contained cells that resembled murine iNKT1 cells. Our data point to the existence of different maturation stages of human thymic iNKT cells and provide evidence for sublineage commitment of iNKT cells in the human thymus.

2022-09-30 | GSE210956 | GEO

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