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NOTCH1 signaling during CD4+ T-cell activation alters transcription factor networks and enhances antigen responsiveness

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Homo sapiens

PROVIDER: GSE207315 | GEO | 2022/07/03

REPOSITORIES: GEO

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NOTCH1 signaling during CD4+ T-cell activation alters transcription factor networks and enhances antigen responsiveness.

Project description: Not available

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NOTCH1 signaling during CD4+ T-cell activation alters transcription factor networks and enhances antigen responsiveness [CULTURED_NCT07]

Project description:Adoptive transfer of T cells expressing chimeric antigen receptors (CAR-T) effectively treats refractory hematologic malignancies in a subset of patients but can be limited by poor T-cell expansion and persistence in vivo. Less differentiated T-cell states correlate with the capacity of CAR-T to proliferate and mediate antitumor responses, and interventions that limit tumor-specific T-cell differentiation during ex vivo manufacturing enhance efficacy. NOTCH signaling is involved in fate decisions across diverse cell lineages and in memory CD8+ T cells was reported to upregulate the transcription factor FOXM1, attenuate differentiation, and enhance proliferation and antitumor efficacy in vivo. Here, we used a cell-free culture system to provide an agonistic NOTCH1 signal during naïve CD4+ T-cell activation and CAR-T production and studied the effects on differentiation, transcription factor expression, cytokine production, and responses to tumor. NOTCH1 agonism efficiently induced a stem cell memory phenotype in CAR-T derived from naïve but not memory CD4+ T cells and upregulated expression of AhR and c-MAF, driving heightened production of interleukin-22 (IL-22), IL-10, and granzyme B. NOTCH1-agonized CD4+ CAR-T demonstrated enhanced antigen responsiveness and proliferated to strikingly higher frequencies in mice bearing human lymphoma xenografts. NOTCH1-agonized CD4+ CAR-T also provided superior help to cotransferred CD8+ CAR-T, driving improved expansion and curative antitumor responses in vivo at low CAR-T doses. Our data expand the mechanisms by which NOTCH can shape CD4+ T-cell behavior and demonstrate that activating NOTCH1 signaling during genetic modification ex vivo is a potential strategy for enhancing the function of T cells engineered with tumor-targeting receptors.

2022-07-03 | GSE207314 | GEO

NOTCH1 signaling during CD4+ T-cell activation alters transcription factor networks and enhances antigen responsiveness [IN_VIVO_AW3]

2022-07-03 | GSE207312 | GEO

NOTCH1 signaling during CD4+ T-cell activation alters transcription factor networks and enhances antigen responsiveness

Project description:NOTCH1 signaling during CD4+ T-cell activation alters transcription factor networks and enhances antigen responsiveness

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NOTCH1 signaling during CD4+ T-cell activation alters transcription factor networks and enhances antigen responsiveness [CULTURED_NCT07]

Project description:NOTCH1 signaling during CD4+ T-cell activation alters transcription factor networks and enhances antigen responsiveness [CULTURED_NCT07]

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NOTCH1 signaling during CD4+ T-cell activation alters transcription factor networks and enhances antigen responsiveness [IN_VIVO_AW3]

Project description:NOTCH1 signaling during CD4+ T-cell activation alters transcription factor networks and enhances antigen responsiveness [IN_VIVO_AW3]

| PRJNA854670 | ENA

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NUMB enhances Notch signaling by repressing ubiquitination of NOTCH1 intracellular domain.

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