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Next-generation sequencing of three memory OT-I cell subsets from mice infected with vesicular stomatitis virus

ABSTRACT: Purpose: RNA-seq analysis of three memory OT-I cell subsets (from a Klrg1-Cre fate reporter mouse model) isolated from the spleen of C57BL/6 mice infected with vesicular stomatitis virus. The hypothesis tested in the present study was that KLRG1+ effector CD8 T lymphocytes differentiate into KLRG1- memory CD8 T lymphocytes and provide long-lasting immunity against infectious diseases and malignancies. Methods: Total RNA was obtained from FACS-purified OT-I cell subsets isolated from spleen 70 days post infection with ovalbumin-expressing vesicular stomatitis virus (VSV-OVA) (experiment 3). Results: Using RNA-seq technology, we performed genome-wide transcriptional profiling of three memory OT-I cells (KLRG1+ Reporter+, KLRG1- Reporter+ (exKLRG1) and KLRG1- Reporter-) and identified 36 genes differentially expressed (> 1.5-fold) between exKLRG1 and KLRG1- Reporter- memory OT-I cells, and 132 differentially expressed genes between exKLRG1 and KLRG1+ Reporter+ memory OT-I cells. We then confirmed the expression of 15 genes/molecules by qRT-PCR and/or flow cytometry. Conclusions: Our study represents the first fate mapping analysis of KLRG1+ effector OT-I cells, demonstrates that KLRG1+ effector OT-I cells differentiate into all memory T cell lineages thereby promoting protective immunity. RNA-seq also identified CX3CR1 as a marker of circulating exKLRG1 early memory OT-I cells.

ORGANISM(S): Mus musculus

PROVIDER: GSE110706 | GEO | 2018/03/01

REPOSITORIES: GEO

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Next-generation sequencing of three memory OT-I cell subsets from mice infected with Listeria monocytogenes

Project description:Purpose: RNA-seq analysis of three memory OT-I cell subsets (from a Klrg1-Cre fate reporter mouse model) isolated from the spleen of C57BL/6 mice infected with Listeria monocytogenes. The hypothesis tested in the present study was that KLRG1+ effector CD8 T lymphocytes differentiate into KLRG1- memory CD8 T lymphocytes and provide long-lasting immunity against infectious diseases and malignancies. Methods: Total RNA was obtained from FACS-purified OT-I cell subsets isolated from spleen 104 (experiment 1) and 110 days post infection (experiment 2) with ovalbumin-expressing Listeria monocytogenes (LM-OVA). Results: Using RNA-seq technology, we performed genome-wide transcriptional profiling of three memory OT-I cells (KLRG1+ Reporter+, KLRG1- Reporter+ (exKLRG1) and KLRG1- Reporter-) and identified 36 genes differentially expressed (> 1.5-fold) between exKLRG1 and KLRG1- Reporter- memory OT-I cells, and 132 differentially expressed genes between exKLRG1 and KLRG1+ Reporter+ memory OT-I cells. We then confirmed the expression of 15 genes/molecules by qRT-PCR and/or flow cytometry. Conclusions: Our study represents the first fate mapping analysis of KLRG1+ effector OT-I cells, demonstrates that KLRG1+ effector OT-I cells differentiate into all memory T cell lineages thereby promoting protective immunity. RNA-seq also identified CX3CR1 as a marker of circulating exKLRG1 early memory OT-I cells.

2018-03-01 | GSE110629 | GEO

ATAC-seq of naive and three effector OT-I cell subsets from mice infected with Listeria monocytogenes

Project description:Purpose: ATAC-seq analysis of naive and three effector OT-I cell subsets (from a Klrg1-Cre fate reporter mouse model) isolated from the spleen of C57BL/6 mice 0 and 8 days post infection with OVA-expressing Listeria monocytogenes. The hypothesis tested in the present study was that chromatin remodeling in KLRG1+ effector CD8 T lymphocytes promotes the differentiation into KLRG1- memory CD8 T lymphocytes that provide long-lasting immunity against infectious diseases and malignancies. Methods: DNA was obtained from 50,000 FACS-purified OT-I cell subsets isolated from spleen 0 and 8 days post infection with ovalbumin-expressing Listeria monocytogenes (LM-OVA) (experiment 3). Results: Using ATAC-seq technology, we analyzed the chromatin accessibility landscape of naive and three effector OT-I cells (KLRG1+ Reporter+, KLRG1- Reporter+ (exKLRG1) and KLRG1- Reporter-). Conclusions: Our study represents the first fate mapping analysis of KLRG1+ effector OT-I cells, demonstrates that KLRG1+ effector OT-I cells differentiate into all memory T cell lineages thereby promoting protective immunity. RNA-seq identified CX3CR1 as a marker of circulating exKLRG1 early memory OT-I cells, and ATAC-seq analysis revealed that chromatin remodeling enabled exKLRG1 memory cells to exhibit both a high cytotoxic and proliferative capacity.

2018-03-01 | GSE110876 | GEO

Transcriptional comparison of ptpn2-deficient and competent effector and memory precursor cells in acute HSV infection

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Redirection of therapeutic T cells to a bone marrow niche improves their persistence and anti-tumor functions: transcription profiling by array of resting memory OT-I T_CXCR4) or OT-I T_Control cells isolated from the spleen 90 days following DC vaccination.

Project description:This study reports the improvement in function and antitumor efficacy of CXCR4 overexpression in therapeutic CD8+ T cells. Polyclonal CD8+ T cells from OT-I C57BL/6 (B6) mice were transduced with a modified pMP71 retroviral vector containing murine Cxcr4 and Gfp reporter sequences (T_CXCR4) or with a control vector containing Gfp alone (T_Control), and co-transferred into to B6 mice that were then vaccinated with peptide-pulsed DC. 90 days following DC vaccination, lymphocytes were isolated from the spleen and resting memory OT-I T_CXCR4 and OT-I T_Control cells were FACS sorted to perform gene expression profiling.

2018-03-28 | E-MTAB-6091 | biostudies-arrayexpress

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Altered transcriptional profile of Smad4-deficient CTLs during infection with Listeria

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2020-08-26 | GSE152841 | GEO

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