Transcriptome of activated human and mouse MAIT cells
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA509893 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR8315540_1.fastq.gz | Fastqsanger.gz | |||
| SRR8315540_2.fastq.gz | Fastqsanger.gz | |||
| SRR8315550_1.fastq.gz | Fastqsanger.gz | |||
| SRR8315550_2.fastq.gz | Fastqsanger.gz | |||
| SRR8315560_1.fastq.gz | Fastqsanger.gz |
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Project description:We sought to describe in detail the consequences of MAIT cell activation using a transcriptomic approach to define the basic transcriptome of a MAIT cell in both humans and mice and to determine how this is modulated by activation. Fresh human peripheral blood cells were obtained from three donors. These were cultured for 6 hours with (‘stimulated’) or without (‘unstimulated’) 10 nM 5-OP-RU, magnetically enriched on MR1-tetramer+ cells, and flow-sorted for RNA sequencing of live CD3+TCR Valpha7.2+ MR1-5-OP-RU tetramer+ MAIT cells, and of unstimulated naïve live CD8+CD45RA+ T cells as a comparator cell type. For the murine samples we included within the same sequencing experiment live pulmonary CD3+45.2+19-MR1-5-OP-RU tetramer+ MAIT cells which were magnetically enriched and flow-sorted from the lungs of mice 7 days after infection with 1x104 CFU L. longbeachae (‘acute’), or at least 12 weeks post infection (‘resolution’) or 7 days after a second intranasal infection with 2x104 CFU L. longbeachae in mice that had recovered from infection 12 weeks previously (‘reinfection’). Live CD3+CD45.2+CD19-CD8+CD44-CD62L+ naïve T cells from uninfected mice were used as a comparator cell type.
2019-09-10 | GSE123805 | GEO
Project description:Mucosal associated invariant T (MAIT) cells are an abundant population of innate T cells that recognize bacterial ligands and play a key role in host protection against bacterial and viral pathogens. Upon activation, MAIT cells undergo proliferative expansion and increase their production of effector molecules such as cytokines. In this study, we found that mRNA and protein the abundance of the key metabolism regulator and transcription factor MYC was increased in stimulated MAIT cells. Using quantitative mass spectrometry, we identified the activation of two MYC controlled metabolic pathways, amino acid transport and glycolysis, both of which were necessary for MAIT cell proliferation. Finally, we showed that MAIT cells isolated from people with obesity showed decreased MYC mRNA abundance upon activation, which was associated with defective MAIT cell proliferation and functional responses. Collectively, our data uncovers the importance of MYC-regulated metabolism for MAIT cell proliferation and provides additional insight into the molecular basis for the functional defects of MAIT cells in obesity.
2023-04-20 | PXD041544 | Pride
Project description:Mucosal-associated invariant T (MAIT) cells are a subpopulation of T lymphocytes that respond to microbial metabolites. We performed single-cell RNA sequencing and metabolic analyses in MAIT cell subsets in thymus and peripheral tissues from mice and humans to define the heterogeneity and developmental path of these innate-like lymphocytes. We show that the predominant mouse subset, which produces IL-17 (MAIT17), and the subset that produces IFN (MAIT1), have greatly different transcriptomes and metabolic states in the thymus and periphery. A subset has a transcriptome similar to circulating lymphocytes, and in mice these are found in recent thymic emigrants, suggesting partially mature cells emigrate from the thymus. Human MAIT cells are predominantly MAIT1 cells, but have a different metabolism from naïve CD8 T cells with increased fatty acid uptake and storage. Although mouse and human subsets are similar in thymus, in the periphery they are divergent, likely reflecting environmental and genetic differences.
2023-11-13 | GSE189484 | GEO
Project description:Mucosal-associated invariant T (MAIT) cells are a subpopulation of T lymphocytes that respond to microbial metabolites. We performed single-cell RNA sequencing and metabolic analyses in MAIT cell subsets in thymus and peripheral tissues from mice and humans to define the heterogeneity and developmental path of these innate-like lymphocytes. We show that the predominant mouse subset, which produces IL-17 (MAIT17), and the subset that produces IFN (MAIT1), have greatly different transcriptomes and metabolic states in the thymus and periphery. A subset has a transcriptome similar to circulating lymphocytes, and in mice these are found in recent thymic emigrants, suggesting partially mature cells emigrate from the thymus. Human MAIT cells are predominantly MAIT1 cells, but have a different metabolism from naïve CD8 T cells with increased fatty acid uptake and storage. Although mouse and human subsets are similar in thymus, in the periphery they are divergent, likely reflecting environmental and genetic differences.
2023-11-13 | GSE189483 | GEO
Project description:Transcriptomes and metabolism define heterogeneous mouse and human MAIT cells [mouse]
| PRJNA783215 | ENA
Project description:Transcriptomes and metabolism define heterogeneous mouse and human MAIT cells [human]
| PRJNA783216 | ENA
Project description:To show the similarity among MAIT-iPSCs, hiPSCs and hESCs and the gradual change of global gene expression of reMAIT cells along with differentiation, this experiment was designed. MAIT cells, MAIT-iPSCs, hiPSCs, hESCs, MAIT cells, and reMAIT cells at the several differerent stages of differentiation were collected. Then, they were applied in this experiment.
2013-03-21 | E-GEOD-44559 | biostudies-arrayexpress
Project description:MAIT cells are multifunctional innate-like effector cells recognizing bacterial-derived vitamin B metabolites presented by the non-polymorphic MHC class I related-1 molecule (MR1). Activated MAIT cells can exert regulatory, pro-inflammatory, or cytotoxic responses that enable the direct killing of infected cells. While tremendous progress regarding the multifaceted roles of MAIT cells has been made in the last decade, our understanding of the MR1-mediated responses of MAIT cells upon their interaction with other immune cells is still incomplete. Here, we performed the first translatome study of primary human MAIT cells interacting with THP-1 monocytes in a bicellular system. We analyzed the interaction between MAIT and THP-1 cells in the presence of the activating 5-OP-RU or the inhibitory Ac-6-FP MR1-ligand. Using bio-orthogonal non-canonical amino acid tagging (BONCAT) we were able to enrich selectively those proteins that were newly translated during MR1-dependent cellular interaction. Subsequently, newly translated proteins were measured cell-type-specifically by ultrasensitive proteomics to decipher the coinciding immune responses in both cell types. This strategy identified over 2,000 MAIT and 3,000 THP-1 active protein translations following MR-1 ligand stimulations. Translation of both cell types was more efficiently induced by 5-OP-RU in comparison to Ac-6-FP, which correlated with higher conjugation frequencies and CD3 polarization at immunological synapses. In addition to known effector responses, protein translations uncovered type I and type II Interferon-driven protein expression profiles in both 5-OP-RU-stimulated MAIT and THP-1 cells. Interestingly, the translatome of THP-1 macrophages suggested that activated MAIT cells can impact M1/M2 polarization in these cells. Indeed, gene and surface expression of CXCL10, IL-1, CD80, and CD206 confirmed an M1-like phenotype of macrophages being induced in the presence of 5-OP-RU-activated MAIT cells. Furthermore, we validated that the Interferon-driven translatome was accompanied by the induction of an antiviral phenotype in THP-1 cells, which were found able to suppress viral replication following conjugation with MR1-activated MAIT cells. In conclusion, BONCAT translatomics extended our knowledge of MAIT cell immune responses at the protein level and discovered that MR1-activated MAIT cells are sufficient to induce M1 polarization and an anti-viral program of macrophages.
2023-02-08 | PXD039785 | Pride
Project description:MAIT cells are multifunctional innate-like effector cells recognizing bacterial-derived vitamin B metabolites presented by the non-polymorphic MHC class I related-1 molecule (MR1). Activated MAIT cells can exert regulatory, pro-inflammatory, or cytotoxic responses that enable the direct killing of infected cells. While tremendous progress regarding the multifaceted roles of MAIT cells has been made in the last decade, our understanding of the MR1-mediated responses of MAIT cells upon their interaction with other immune cells is still incomplete. Here, we performed the first translatome study of primary human MAIT cells interacting with THP-1 monocytes in a bicellular system. We analyzed the interaction between MAIT and THP-1 cells in the presence of the activating 5-OP-RU or the inhibitory Ac-6-FP MR1-ligand. Using bio-orthogonal non-canonical amino acid tagging (BONCAT) we were able to enrich selectively those proteins that were newly translated during MR1-dependent cellular interaction. Subsequently, newly translated proteins were measured cell-type-specifically by ultrasensitive proteomics to decipher the coinciding immune responses in both cell types. This strategy identified over 2,000 MAIT and 3,000 THP-1 active protein translations following MR-1 ligand stimulations. Translation of both cell types was more efficiently induced by 5-OP-RU in comparison to Ac-6-FP, which correlated with higher conjugation frequencies and CD3 polarization at immunological synapses. In addition to known effector responses, protein translations uncovered type I and type II Interferon-driven protein expression profiles in both 5-OP-RU-stimulated MAIT and THP-1 cells. Interestingly, the translatome of THP-1 macrophages suggested that activated MAIT cells can impact M1/M2 polarization in these cells. Indeed, gene and surface expression of CXCL10, IL-1, CD80, and CD206 confirmed an M1-like phenotype of macrophages being induced in the presence of 5-OP-RU-activated MAIT cells. Furthermore, we validated that the Interferon-driven translatome was accompanied by the induction of an antiviral phenotype in THP-1 cells, which were found able to suppress viral replication following conjugation with MR1-activated MAIT cells. In conclusion, BONCAT translatomics extended our knowledge of MAIT cell immune responses at the protein level and discovered that MR1-activated MAIT cells are sufficient to induce M1 polarization and an anti-viral program of macrophages.
2023-02-08 | PXD039820 | Pride
Project description:MAIT cells are multifunctional innate-like effector cells recognizing bacterial-derived vitamin B metabolites presented by the non-polymorphic MHC class I related-1 molecule (MR1). Activated MAIT cells can exert regulatory, pro-inflammatory, or cytotoxic responses that enable the direct killing of infected cells. While tremendous progress regarding the multifaceted roles of MAIT cells has been made in the last decade, our understanding of the MR1-mediated responses of MAIT cells upon their interaction with other immune cells is still incomplete. Here, we performed the first translatome study of primary human MAIT cells interacting with THP-1 monocytes in a bicellular system. We analyzed the interaction between MAIT and THP-1 cells in the presence of the activating 5-OP-RU or the inhibitory Ac-6-FP MR1-ligand. Using bio-orthogonal non-canonical amino acid tagging (BONCAT) we were able to enrich selectively those proteins that were newly translated during MR1-dependent cellular interaction. Subsequently, newly translated proteins were measured cell-type-specifically by ultrasensitive proteomics to decipher the coinciding immune responses in both cell types. This strategy identified over 2,000 MAIT and 3,000 THP-1 active protein translations following MR-1 ligand stimulations. Translation of both cell types was more efficiently induced by 5-OP-RU in comparison to Ac-6-FP, which correlated with higher conjugation frequencies and CD3 polarization at immunological synapses. In addition to known effector responses, protein translations uncovered type I and type II Interferon-driven protein expression profiles in both 5-OP-RU-stimulated MAIT and THP-1 cells. Interestingly, the translatome of THP-1 macrophages suggested that activated MAIT cells can impact M1/M2 polarization in these cells. Indeed, gene and surface expression of CXCL10, IL-1, CD80, and CD206 confirmed an M1-like phenotype of macrophages being induced in the presence of 5-OP-RU-activated MAIT cells. Furthermore, we validated that the Interferon-driven translatome was accompanied by the induction of an antiviral phenotype in THP-1 cells, which were found able to suppress viral replication following conjugation with MR1-activated MAIT cells. In conclusion, BONCAT translatomics extended our knowledge of MAIT cell immune responses at the protein level and discovered that MR1-activated MAIT cells are sufficient to induce M1 polarization and an anti-viral program of macrophages.
2023-02-08 | PXD039804 | Pride